CN101565139A - Elevator group management system - Google Patents
Elevator group management system Download PDFInfo
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- CN101565139A CN101565139A CNA2009100071932A CN200910007193A CN101565139A CN 101565139 A CN101565139 A CN 101565139A CN A2009100071932 A CNA2009100071932 A CN A2009100071932A CN 200910007193 A CN200910007193 A CN 200910007193A CN 101565139 A CN101565139 A CN 101565139A
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Abstract
The invention provides an elevator group management system for managing multiple elevators (3A, 3B) for serving multiple floors, comprising: a target floor entering device (5A, 5B) fixed in the elevator entrance for entering target floor call of elevator cage; and a group management control device (1) for distributing an elevator for providing service for entered target floor call from multiple elevators, and restrains distribution of the elevator following the increase of number of distributed target floor call. Thereby, in the group management system of elevator entrance enter of the target floor call, based on the change of passenger flow, more delicate measurement can be taken for enhancing operation efficiency of each elevator cage.
Description
Technical field
The present invention relates to a kind of cluster management system that unified management is carried out in the operation of many elevators, be particularly useful for adopting group's management of the mode of calling out at elevator lobby place login destination floor.
Background technology
As known technology, for example disclosed such in patent documentation 1, known have at elevator lobby or building inlet, login such as corridor destination floor, and with its target floor registering type group management of calling out as destination floor, in this target floor registering type group management, the equal time section is on duty, go to each destination floor when elevator passenger from lobby floor and make destination floor that elevator passenger goes to more for a long time, for destination floor being distributed (taking separately), to improve the operating efficiency of each lift car, the limits value of the call number of each lift car is distributed in setting, select the call number restriction candidate elevator of call number below the call number limits value of not response, and give the elevator of from call number restriction candidate elevator, selecting new call distribution.
In addition, for example disclosed such in patent documentation 2, known have a following technology: for the correct number of grasping waiting Passengen, so that the condition of service of lift car is improved service quality according to the passenger, calculate login times by the destination call of the login of the destination call login button in the elevator lobby, when this number of times has surpassed specified value, change the distribution that lift car is made, and increase the lift car that distributes other.
In addition, for example disclosed such in patent documentation 3, known have a following technology: for according to by each destination floor elevator lobby call information of appointment respectively, more accurately according to the variation of ridership, infer the ridership of elevator, calculate at each lift car and to login the probability of occurrence that each floor generation lift car that elevator lobby calls out is called out, obtain the anticipated value of the time of advent of each floor, and according to the value of obtaining lift car is distributed to de novo elevator lobby and call out.
The patent documentation 1 open patent 2001-58764 of Japan communique
The flat 7-232867 communique of patent documentation 2 Japan's open patents
The flat 11-209010 communique of patent documentation 3 Japan's open patents
Summary of the invention
In above-mentioned known technology, the limits value of the call number of each lift car is distributed in setting, change the distribution that lift car is made when perhaps the login times of calling out at destination floor has surpassed specified value, but, only by above-mentioned measure, then be difficult to the limits value of call number or the specified value of login times are set at suitable value according to the variation of ridership, because as long as change a value lift car as the distribution object is changed, therefore the change of a value will cause service quality that big variation takes place.
Owing to be on duty the time period etc., ridership was that rapid variation takes place in unit with several minutes, therefore must set suitable value at short notice, and in order to accomplish this point, then must set appropriate value in the shorter time., owing under the situation of reality, will find this suitable value to need spended time, therefore be difficult to take more careful measure to keep stable service quality (shortening wait time).
In addition, press each destination floor elevator lobby call information of appointment respectively in basis, calculate the probability of occurrence that each floor generation lift car is called out, in the technology with the anticipated value of time of advent of obtaining each floor, because it just changes the anticipated value of time of advent of each lift car, and not in the quantity of the destination floor of elevator passenger more for a long time, destination floor is distributed, therefore, this technology can't be tackled ridership generation steep variation, and for example elevator passenger was the situation that big change takes place in unit with several minutes as working equal time section.
The objective of the invention is to solve existing problem in the above-mentioned known technology,, take more careful measure, and improve the operating efficiency of each cab according to the variation of ridership.In addition, other purposes of the present invention are, even occasion jumpy can take place such ridership of the time period that is on duty, also can keep stable service quality (shortening wait time).
To achieve these goals, the invention provides a kind of to many elevator cluster management systems that provide the elevator of service to manage at a plurality of floors, wherein, described elevator cluster management system has: the destination floor entering device, it is arranged on elevator lobby, is used to login the destination floor calling of lift car; And group management control apparatus, it is assigned as the described destination floor of being logined and calls out the described elevator that service is provided from described many elevators, the increase of the described destination floor call number that is assigned to along with described elevator is suppressed the distribution of described elevator.
According to the present invention, because increase along with the destination floor call number that is assigned to, distribution to described elevator has been subjected to inhibition, therefore, when ridership is big, the more elevator of destination floor call number that is assigned to is difficult to be assigned to new calling, and in ridership hour, preferentially carries out allocation of elevators according to wait time.So, can take more careful measure according to the variation of ridership, and improve the operating efficiency of each lift car.
Description of drawings
Fig. 1 is the diagram of block of the system architecture of expression one embodiment of the present invention.
Fig. 2 is the birds-eye view of the destination floor entering device of expression one embodiment.
Fig. 3 is the action flow chart of an embodiment.
Fig. 4 is the diagram of curves that the evaluation number of expression one embodiment is adjusted gain characteristic.
Fig. 5 is the diagram of curves of the allocation evaluation value regulating characteristic of expression one embodiment.
Fig. 6 is the instruction diagram of the evaluation number of ridership when big.
Fig. 7 is the instruction diagram of the ridership evaluation number hour of an embodiment.
Fig. 8 is the diagram of curves that the wait time of expression one embodiment shortens effect.
Fig. 9 is the instruction diagram of the distribution method in the expression known technology.
Figure 10 is the diagram of curves that the ridership of expression work hours section changes.
Figure 11 is the instruction diagram of the distribution method of expression one embodiment.
Figure 12 is the diagram of curves that the wait time of other embodiment of expression is adjusted gain characteristic.
Figure 13 represents the diagram of curves of characteristic of the wait time adjustment gain of another other embodiment.
Figure 14 represents the diagram of block of the system architecture of other embodiment.
Nomenclature
1 group management control apparatus
The 2A elevator control device
The 3A elevator
The 4A passenger group
5A destination floor entering device
101 quantitative data input outputs
102 wait time calculating sections
103 wait time evaluation number calculating sections
The calculating section of 104 other evaluation numbers
105 allocation evaluation value calculating sections
106 stop the number of floor levels calculating section
107 allocation evaluation value adjustment member
108 distribute car to select part
The specific embodiment
Elevator cluster management system by with many elevators as a colony, provide high efficiency operation service to the passenger.Specifically, many lift cars are managed as a colony, the elevator lobby in a certain floor new login is called out, select an optimal lift car, and this lift car is distributed to the elevator lobby calling of this new login.
In general cluster management system, make progress or downward calling in the elevator lobby login, and after having taken advantage of the lift car that arrives, login destination floor, and the cluster management system of target floor registering type (Destination Control System) is the cluster management system at elevator lobby place login destination floor, owing to can know the destination floor of elevator passenger by the destination login of elevator passenger, so can distribute suitable lift car to each destination floor.
When the quantity of the destination floor of the elevator passenger in the elevator lobby (when 8 floors etc. are for example arranged) more for a long time, by sharing these destination floors by a plurality of lift cars, can reduce the stop number of times of each lift car, its result, all running times can be shortened, thereby the operating efficiency of each lift car can be improved.The passenger occurs mostly when lobby floor is gone to the ridership of a plurality of destination floors as working equal time section, said method is effective especially.In addition, ridership is meant the passengers quantity that arrives elevator lobby in specific time (for example 5 minutes).
Followingly embodiments of the present invention are described with reference to accompanying drawing.
Fig. 1 represents an example of the structure of elevator cluster management system, and this elevator cluster management system is to locate to login destination floor at elevator lobby etc., and carries out the target floor registering type cluster management system that lift car distributes according to this destination floor.For convenience of explanation, this group's management of sentencing 2 elevators describes for example.
This elevator cluster management system mainly comprises: 2 elevator 3A (A elevator), 3B (B elevator); Each elevator control device 2A (A elevator control device), 2B (B elevator control device); 2 elevators are carried out the group management control apparatus 1 of unified management.The situation (having omitted other floor) of in Fig. 1, having represented the elevator lobby in the 1st building.In the 1st building, be provided with allow the passenger by login such as numerical key destination floor to generate destination floor entering device 5A, the 5B of elevator-calling.Used the step of using method of elevator of destination floor entering device as follows.
The passenger in the (1st) 1 building is by destination floor entering device 5A or 5B login destination floor.(2), be assigned as the elevator that this destination floor provides service by group management control apparatus 1 for the destination floor of being logined.(3) its result shows selecteed allocated elevators on the destination floor entering device.(4) passenger waits for elevator after seeing this demonstration before shown elevator.
Fig. 2 represents the details of destination floor entering device.Passenger's function digit keyboard E01, the input destination floor is called out to generate.Its result, allocated elevators (E02) is presented on the E03 of display part immediately.At this moment, the B elevator is an allocated elevators, and the passenger goes to the elevator lobby of B elevator to wait for the arrival of elevator.After the B elevator arrived the login floor, owing to logined the destination floor of being imported, so the passenger did not carry out any push-botton operation and can go to the destination floor of being logined yet in lift car.
In target floor registering type group management, owing to can distribute suitable elevator to each destination floor of being logined, so can distribute a plurality of elevators according to the situation of destination floor.For example, in the example of Fig. 1, the passenger is allocated to following 2 colonies: the passenger group 4A and the passenger group 4B that distributes to the B elevator that distribute to the A elevator.In the example of Fig. 1, only illustrate the destination floor entering device in the 1st building, and the form that is provided with of destination floor entering device has 2 kinds, a kind of is in comprising each floor in the 1st building the destination floor entering device to be set, another kind is in the 1st building the destination floor entering device to be set, the login button of the storey setting above-below direction beyond in the 1st building.
Below group management control apparatus 1 is elaborated.
The elevator lobby information of the information of the information of each elevator control device, the lift car of each elevator, each elevator of each floor is input in the quantitative data input output 101.On the other hand, quantitative data input output 101 will output in each equipment of each elevator control gear and elevator lobby from the control command of group management control apparatus and output information etc.
Information according to quantitative data input output 101, in the calculating section 102 of the wait time till the login floor that each destination floor of each elevator car arrives is called out, call out at the destination floor of distributing to each lift car, calculate each and call out the prediction latency time that distributes till car arrives the login floor of this calling from signing in to.When calling is the calling of new login, prediction latency time is to distribute car (being the interim car that distributes this moment) to arrive the prediction time of advent of calling out the login floor, if the calling that has been assigned with, then described prediction latency time represent from sign in to institute elapsed time till the current point in time and distribute car to arrive prediction time of advent of calling out the login floor and.
Destination floor is called out and is meant the calling that is generated by the destination floor entering device, and call data are represented by the combination of calling out login floor io and destination floor id.For example, the login floor is the 1st building, and destination floor is that the destination floor calling in the 5th buildings is represented as: (io, id)=(the 1st building, the 5th buildings).
In wait time evaluation number calculating section 103,, calculate the wait time evaluation number of each lift car according to the wait time till each destination floor calling login floor of each elevator car arrives.For example, in the method for maximum latency till the login floor that Jiang Getai elevator car arrives destination floor is called out, represent the wait time evaluation number Φ of k elevator by following formula as the wait time evaluation number
w(k).
Φ
w(k)＝Max{w
k，1，w
k，2，w
k，3，…}(1)
In the formula, w
K, 1, w
K, 2, w
K, 3... it is the prediction latency time of distributing to each destination floor calling of k elevator.
In addition, that also each destination floor can be called out and, sum of squares or its square root calculate as the wait time evaluation number.When sum of squares, the wait time evaluation number Φ of k elevator
w(k) be expressed from the next.
Φ
w(k)＝∑(w
k，i)
2(2)
In the formula, w
K, i(i=1,2,3 ...) expression distributes to the prediction latency time that each destination floor of k elevator is called out.
In the calculating section 104 of other evaluation number, calculate wait time evaluation number evaluation number in addition, for example, the evaluation number relevant with number in the lift car and for fear of the elevator cage operation position too near and the evaluation number of the position relation of each lift car of estimating etc.
In allocation evaluation value calculating section 105, be weighted addition by wait time evaluation number and come dispensed evaluation number Φ wait time evaluation number and other
T(k).Allocation evaluation value Φ
T(k) calculate according to following formula.
Φ
T(k)＝Φ
w(k)+∑{αj·Φ
j(k)}(3)
In the formula, Φ
w(k) expression is by wait time evaluation number adjustment member 103 adjusted wait time evaluation numbers, and α j represents coefficient of weight, Φ
j(k) evaluation number of other beyond the expression wait time evaluation number.
In the calculating section 106 of the stop number of floor levels that each lift car of calculating is stopped because of the calling that is assigned to, calculate each lift car is called out the stop number of floor levels of stopping because of the destination floor that is assigned to aggregate value.Stop floor and divide 2 kinds, a kind of stop floor is to call out the login floor, and another kind of stop floor is a destination floor, and 2 kinds of stop floors all are to call out the stop floor of stopping because of destination floor.But, because in the time period that is on duty, most stop floors are destination floors, therefore, also can will belong to the stop floor of destination floor as call out the stop floor of stopping because of destination floor.
For example, the A elevator travels down in the 4th buildings, and has been assigned with following destination floor and calls out: (io, id)=(the 1st building, the 5th buildings), (the 1st building, the 8th buildings), (the 1st building, the 12nd buildings), (the 5th buildings, the 12nd buildings), (the 6th buildings, the 8th buildings).At this moment, under situation the about floor that repeats repeatedly not being counted, the stop floor that belongs to login floor and destination floor is the 1st building, the 5th buildings, the 6th buildings, the 8th buildings and the 12nd buildings, stops number of floor levels and adds up to 5 floors.
In allocation evaluation value adjustment member 107, stop number of floor levels and allocation evaluation value according to calling out, according to calling out the size of how much adjusting allocation evaluation value of stopping number of floor levels.That is to say that it is many more to call out the stop number of floor levels, adjusts allocation evaluation value big more.Its result, in each elevator, the stop number of floor levels of stopping because of the calling of being accepted is many more, and then the apparent evaluation number of this elevator is just big more, just difficultly more is assigned to new calling.Thus, when the ridership such as time period that are on duty are big, the stop number of floor levels of each elevator increases, one all running times are elongated, thereby cause wait time also elongated, but. by distributing the stop number of floor levels suppress each lift car, it is elongated and to suppress wait time elongated to suppress all running times.
Distributing car to select from the adjusted allocation evaluation value of each lift car, to find out minimum value in the part 108, and will with the cooresponding elevator of this evaluation number as allocated elevators.
Following diagram of circuit with reference to Fig. 3, the treatment scheme that the new calling of the elevator cluster management system of Fig. 1 is signed in to till allocated elevators is determined describes.
Judged whether new login destination floor calling (ion, idn) (ST01).When judged result is to negate, repeats to handle up to being judged as and new login occurred.Being judged as when new login having occurred, carry out circular treatment at each elevator, to calculate comprehensive evaluation value Φ
T(k) (ST02).In this circular treatment, by changing the value of k, the whole elevators till from No. 1 elevator to the kmax elevator are implemented to handle.
Distribute the destination floor of new login to call out (ST03) to the k elevator temporarily.
Calculate the destination floor of k elevator arrival new login and call out (ion, the prediction time of advent (ST04) of login floor ion idn).
Each destination floor of distributing to the k elevator is called out, calculated the prediction latency time (ST05) of the login floor that arrives each calling.
The destination floor of the interim distribution of k elevator is called out and the destination floor that distributed is called out,, calculated wait time evaluation number Φ according to the prediction latency time that aforementioned calculation goes out
w(k) (ST06).The wait time evaluation number can pass through formula (1) or formula calculating such as (2).
The evaluation number Φ j (k) of other beyond the wait time evaluation number of calculating k elevator (j=1,2,3 ...) (ST07), with itself and wait time evaluation number Φ
w(k) be weighted additional calculation, with this dispensed evaluation number Φ
t(k) (ST08).
The destination floor of the interim distribution of k elevator is called out and the destination floor that distributed is called out, and the aggregate value n (k) that calculates the stop number of floor levels that comprises login floor and destination floor (ST09).The floor that login floor and destination floor repeat calculates as only stopping once.
After the aggregate value n (k) of floor was stopped in the calling of calculating the k elevator, the in-service evaluation value was adjusted gain function F and is adopted following formula to calculate evaluation number adjustment gain ga (k) (ST10) from this value.
ga(k)＝F{n(k)}(4)
It is the function with following characteristic that evaluation number is adjusted gain function F, promptly as shown in Figure 4, when stopping number of floor levels above after some values, increases along with stopping number of floor levels, and yield value increases since 1 this value.
After the value of adjustment gain is determined, allocation evaluation value be multiply by gain, adjust allocation evaluation value (ST11),, adjusted allocation evaluation value is set at Φ ' at this with this according to following formula
t(k).
Φ’
t(k)＝ga(k)·Φ
t(k)(5)
Owing to adjusting gain by stopping the number of floor levels decision, therefore, the final response of stop number of floor levels and allocation evaluation value as shown in Figure 5.According to formula (4) and (5), it can be expressed from the next.
Φ’
t(k)＝Φ
t(k)·F{n(k)}(6)
Can adjust evaluation number continuously according to calling out the value of stopping number of floor levels, thereby can in the increase of apparent wait time, reflect stopping the influence " steadily (having continuity) " of number of floor levels and having " multiple effect ".
Adjust the allocation evaluation value of all elevators, finish back (ST12), select adjusted allocation evaluation value Φ ' in the elevator circular treatment
t(k) Zui Xiao elevator, and this elevator is defined as the allocated elevators (ST13) that new destination floor is called out.
The details of the adjustment gain function that Fig. 4 uses when representing the allocation evaluation value adjustment, among the figure, the aggregate value n of the stop number of floor levels of the calling that transverse axis (A01) expression is assigned to, yield value ga is adjusted in the longitudinal axis (A02) expression.
Before the stop number of floor levels reached specified value nth, yield value was 1 (curve A 03 part), at this moment, directly used the allocation evaluation value of being imported.After having surpassed specified value nth (curve A 04 part), adjusting yield value increases (curve A 05 part) pro rata with the stop number of floor levels.Above characteristic can be expressed from the next.
[0051]
ga＝1(1≤n＜nth)(7)
ga＝β(n-nth)+1(nth≤n)(8)
In the formula, β represents specified value (slope of and function is corresponding).
The characteristic of gain is as follows.In stopping the zone of number of floor levels n greater than specified value nth, it is many more to stop number of floor levels, and it is also big more then to adjust gain, because this gain and allocation evaluation value multiply each other (formula (5)), therefore, apparent evaluation number (its main body is a wait time) increases.In fact, during as the working peak etc., after the stop number of floor levels increased, all running times of each lift car were elongated, make lift car just can return lobby floor for a long time, cause wait time elongated rapidly.The gain function of Fig. 4 has reflected stops the influence of the increase of number of floor levels to wait time.Less in ridership, and stop under the also less situation of number of floor levels, it is less to the influence of all running times to stop number of floor levels, and therefore, it is also less to the influence that wait time causes to stop number of floor levels, and this moment, gain was 1.When stopping number of floor levels above after a certain threshold value, it increases sharply to the influence that all running times bring.Therefore, stop also grow of influence that number of floor levels causes actual wait time, become the characteristic that makes the gain that this influence increases linearly.
Below all running times and the relation of stopping between the number of floor levels are carried out supplemental instruction.One all running time RTT can be expressed from the next.
RTT=∑ (shifting time of floor gap)+∑ (time of stopping because of calling) (9)
When stopping number of floor levels more after a little while, the 2nd influence that is brought is also less, therefore, one all running times mainly decide by the 1st, and after stopping number of floor levels and increasing, and the 2nd influence becomes greater than the 1st influence, at this moment, all running times are mainly by stopping the number of floor levels decision.
The threshold value nth of adjustment gain function shown in Figure 4 preferably obtains according to the 1st of (9) formula and the 2nd relation, and the suitable influence stop number of floor levels about equally that will make the 1st influence and the 2nd is as the candidate of threshold value nth.By obtaining the 1st and the 2nd approx with formula (10) and formula (11) respectively, then nth can be represented by formula (12).
∑ (shifting time of floor gap)
The command speed (10) of=(the general services building number of plies * floor gap is every * 2)/elevator
∑ (standing time of stopping because of calling)=stop number of floor levels * average berthing time (11)
The nth={[general services building number of plies * floor gap is every * 2)/command speed of elevator }/average berthing time (12)
Adopt formula (12), calculate the threshold value nth that adjusts gain function every, command speed, average berthing time according to the service floor number of this elevator, floor gap.Because floor gap is known every the estimate of, average berthing time, its value is respectively 4～6m and 5～10 seconds, therefore, as long as know service floor number and command speed, just can obtain roughly suitable nth value.As long as owing to know the specification of building and elevator, just can roughly determine service floor number, floor gap every, the command speed and the average value of berthing time, therefore, threshold value nth can determine when elevator is installed.
Nth there is no need to be integer, the value of the mixed decimal obtained by formula (12) can be set at nth (for example, nth=4.6).In addition, do not comprise the influence that the platform number of elevator is brought in the calculating formula of the nth of formula (12), if at elevator platform number more for a long time, can strengthen the distribution of destination floor by the value that reduces nth, on the contrary, more after a little while, preferably strengthen the value of nth at the platform number, thereby with call packing to 1 lift car.Therefore, preferably when determining nth, after calculating nth, further revise according to elevator platform number according to formula (12).
As mentioned above, make evaluation number adjustment gain increase this characteristic by having along with calling out the increase of stopping number of floor levels, say in more detail, make yield value remain certain value (=1) by having before calling out the threshold value of stop number of floor levels above regulation, after having surpassed threshold value, make calling stop number of floor levels and increase this characteristic, can distribute according to calling out the stop number of floor levels, with preferential shortening wait time.
Owing to call out to stop between number of floor levels and the ridership and have very strong correlativity, therefore carry out automatic compensation, make hour in ridership, preferentially shorten the distribution of wait time, and when ridership is big, preferentially suppress to stop the distribution of number of floor levels (=preferentially suppress all running times).Can be after the specification in elevator and building be determined, the function of Fig. 4 is defined as certain value.
Fig. 5 represents because of distribute calling out the stop number of floor levels stopped and the relation between the adjusted allocation evaluation value.Adjusted allocation evaluation value Φ '
t(k) and between the adjustment gain ga (k) have the relation shown in the formula (5), have relation shown in Figure 4 and adjust gain and stop between the number of floor levels.Therefore, the relation of stopping between number of floor levels and the adjusted allocation evaluation value has characteristic shown in Figure 5.This characteristic is: before calling out the threshold value of stop number of floor levels above regulation, allocation evaluation value keeps original value (the B01 part of curve), surpassed (the B02 part of curve) after the threshold value and stop number of floor levels in calling, allocation evaluation value is along with calling out the increase of stopping number of floor levels and increasing (the B03 part of curve).The characteristic of Fig. 5 can be by formula (13) and formula (14) expression.
Φ’
t(k)＝Φ
w(k)(1≤n＜nth)(13)
Φ’
t(k)＝{β(n-nth)+1}·Φ
t(k)(nth≤n)(14)
According to this characteristic, (stopping under the less situation of number of floor levels) under the less situation of ridership, estimate (estimating) according to the allocation evaluation value before adjusting according to wait time, increase and surpassed and (stop under the more situation of number of floor levels) after the defined terms in ridership, implement following distribution: promptly, the stop number of floor levels of lift car is many more, then makes this lift car be difficult to be assigned to new calling more.
Fig. 6 represents the distribution example under the bigger occasion of work hours section ridership.In the example of Fig. 6 (a), group's management is group's management of 2 elevators of A elevator and B elevator, and is in A elevator (C05) than the Zao state that arrives the 1st building of B elevator (C06).The A elevator has been assigned with more passenger (C09), and it stops number of floor levels (is n
A) also more.On the other hand, the passenger that the B elevator is assigned with also fewer (C10), and the stop number of floor levels (is n
B) also less.Under these circumstances, there is new passenger (C07) to carry out the destination floor login again, below this situation described.
The allocation evaluation value of A elevator is set at Φ
TA, the allocation evaluation value of B elevator is set at Φ
TBBelow, for convenience of explanation, suppose that allocation evaluation value is the wait time evaluation number.Can know from accompanying drawing,, therefore satisfy Φ because the A elevator early arrives the 1st building
TA＞Φ
TBIn addition, the stop number of floor levels of A elevator and B elevator is respectively n
A, n
B, and satisfy n
A＞n
BThus, call out the relation of stopping between number of floor levels and the adjusted allocation evaluation value according to the distribution shown in Fig. 6 (b), the adjusted allocation evaluation value of A elevator becomes Φ ' corresponding to the C03 this point
TAIn addition, the adjusted allocation evaluation value of B elevator becomes Φ ' corresponding to the C04 this point
TBThe pass of original allocation evaluation value is Φ
TA＜Φ
TB, but after having adjusted evaluation number according to the influence of stopping number of floor levels, the relation of allocation evaluation value has become Φ '
TA＞Φ '
TB, relation has taken place to put upside down.Its result, the destination floor calling of being logined by new passenger has been assigned to the B elevator.This be because, though the wait time of A elevator is shorter, it is more that the destination floor of the calling that it has been accepted stops number, therefore, when determining evaluation number, all running times have been included into evaluation number with elongated this harmful effect.That is to say, adjusted according to stopping the allocation evaluation value that number of floor levels is estimated according to the adjustment function C 01 of the A elevator shown in Fig. 6 (b) and the adjustment function C 02 of B elevator.
When ridership is big, the evaluation number adjustment amount of adjusting function increases along with the increase of stopping number of floor levels, and under the effect of this characteristic, allocation evaluation value is adjusted to stops the many more elevators of number of floor levels, its allocation evaluation value is big more, therefore is difficult to be assigned to new calling.Its result stops the more little elevator of number of floor levels and is assigned to new calling easily, and by distribution like this, destination floor is called out and is dispersed to each elevator.Its result, all running times of each elevator shorten, and finally can shorten wait time.
Fig. 7 is illustrated in the distribution example under the less occasion of work hours section and ridership.Shown in Fig. 7 (a), the elevator car position of A elevator (D05), B elevator (D06) is in identical situation with Fig. 6 (a).Different is the quantity of the waiting Passengen of elevator lobby, because ridership is less, has only the A elevator to be assigned to 1 waiting Passengen (D09).Therefore, the stop number of floor levels n of A elevator
ABe 2, and the stop number of floor levels n of B elevator
BBe 0.Under these circumstances, there is new passenger (D07) to carry out the login of new destination floor, below this situation described.
The allocation evaluation value of A elevator is set at Φ
TA, the allocation evaluation value of B elevator is set at Φ
TBBecause the A elevator early arrives the 1st building, therefore satisfy Φ
TA＜Φ
TBRelation.In addition, therefore the stop number of floor levels of A elevator and B elevator is become n respectively owing to distributed new calling to increase temporarily
A=2+1=3, n
B=0+2=2.Thus, call out the relation of stopping between number of floor levels and the adjusted allocation evaluation value according to the distribution shown in Fig. 7 (b), because it is less to stop number of floor levels, the evaluation number before and after therefore adjusting does not change, and still is Φ '
TA＜Φ '
TBIts result, new passenger's destination floor is called out and has been assigned to the A elevator.This is owing to the cause of having made as judging, that is, because ridership is less, so consider from improving single-piece service quality, preferably calling is appended and distribute to 1 lift car, with preferential shortening wait time.
In ridership hour, the evaluation number adjustment amount of adjusting function remains unchanged, and under the effect of this characteristic, does not consider to stop this factor of number of floor levels in minute timing, and new calling is given the less elevator of evaluation number by priority allocation.Its result, each passenger are assigned to the elevator that early arrives, and from the result, because the recruitment of all running times is little, therefore can improve single-piece service quality (wait time).
Fig. 8 is the exemplary plot of expression elevator cluster management system effect shown in Figure 1.In the diagram of curves of Fig. 8, transverse axis is represented the ridership of work hours section, and the longitudinal axis is represented the average latency, and this curve is represented the characteristic of average latency with respect to ridership.In 3 curves, curve G01 represents the wait time characteristic of common group's management control of push button up and down, and curve G02 represents the wait time characteristic of general target floor registering type group management, and curve G03 represents the wait time characteristic of embodiments of the invention.
In common group's management control of push button up and down, in ridership hour, the passenger takes advantage of in the lift car that arrives the earliest one after another, so wait time is the shortest.But along with ridership increases, the stop number of floor levels of each lift car increases, and all running times are also elongated thereupon, cause a part of passenger not take advantage of elevator, thereby make wait time sharply elongated.
In the registering type group management of general destination floor, even ridership increases, owing to can carry out allocation of elevators control according to destination floor, it is elongated therefore can to suppress all running times, compare with group's management of push button up and down, it is sharply elongated to suppress wait time.But, in situation passenger distributing is given in the control of a plurality of lift cars according to destination floor, in the less zone of ridership, can produce the situation of passenger distributing to the long lift car of wait time, therefore, shown in the characteristic of curve G02, to compare with group's management of push button up and down, wait time is elongated.Especially, taking place when distributing to a plurality of lift cars and make whole lift cars together from lobby floor, if having the passenger to arrive lobby floor at once after all lift cars set out, then this passenger need wait for for a long time.
Therefore, in ridership hour, preferably give a lift car,, and when ridership is big,, preferably come allocated elevators according to destination floor in order to shorten all running times with preferential shortening wait time with passenger distributing.As Fig. 6 and illustrated in fig. 7, in control shown in Figure 1, can realize above-mentioned control, its result can access the wait time characteristic shown in the curve G03 of Fig. 8.
Hour do not have an effect in ridership owing to adjust gain, therefore, in ridership hour, preferentially shorten the control of wait time, the same with group's management of push button up and down thus, can shorten wait time.And when ridership is big, increase along with calling out the increase of stopping floor owing to adjusting the gain meeting, so can distribute control, destination floor is distributed to a plurality of lift cars, making it possible to suppress to stop number of floor levels increases.Its result can manage equally with general target floor registering type group, and it is elongated to suppress all running times, thereby it is elongated rapidly to suppress wait time.
In addition, as shown in Figure 8, curve G03 compares with the characteristic curve G02 of general target floor registering type group management, also can shorten wait time when big ridership.This is because in the control of general target floor registering type group management, plays the cause that the service concluding time till the floor that reaches the destination estimates when calling out login.When the concluding time estimating with service and since the service concluding time equal wait time and elevator ride time and, so need carry out impartial evaluation to both, like this, when ridership was big, wait time also can produce great influence to estimating.Its result, owing to can produce the situation that the distribution of destination floor can not be carried out smoothly, thus may cause wait time characteristic variation.
Fig. 9 represents to adopt following technology to carry out the distribution method of branch timing, this technology is by setting number of calls limits value, to from distribute the candidate car, select the technology of the best lift car of allocation evaluation value at the lift car below the number of calls limits value as distributing the candidate car.In the diagram of curves of Fig. 9, transverse axis represents to distribute the number of calls, the longitudinal axis is represented allocation evaluation value, when selecting, selects the best lift car of evaluation number the lift car in left side (number of calls smaller side) scope of the dotted line H01 of expression number of calls limits value.
Suppose that the state of B elevator represented by a H03, the state of H elevator is represented that by H02 the B elevator that then is positioned at dotted line H01 left side is chosen as allocated elevators.Number of calls limits value is to the very large parameter of Effect on Performance, and for example in the occasion of Fig. 9, if number of calls limits value a little more greatly, then putting H02 also becomes distribution candidate car, and at this moment, the less A elevator of allocation evaluation value is selected as allocated elevators.So, can make allocation result that big variation takes place because how number of calls limits value is set, therefore, this value must be selected the value that is fit to all the time according to the variation of ridership.
As shown in figure 10, the ridership of Shi Ji work hours section can be that very large change takes place in unit with several minutes.And, the pattern of variation also every day difference.Therefore, must be according to should be several minutes be that best value is selected in the variation that unit takes place at any time, and to accomplish this point, and need huge operand, implement very difficult.At any time in the method for adjusting control parameter, when steep variation has taken place ridership, can't set suitable parameter, thereby can not stably obtain High Performance according to ridership this.
Figure 11 represents distribution method shown in Figure 1, and the situation of the wait time evaluation number before the distribution number of calls of A elevator and B elevator and the adjustment and the situation identical (state of A elevator is represented that by a K01 state of B elevator is represented by a K02) of Fig. 9.In Fig. 1, allocation evaluation value changes according to the situation of the number of calls of having accepted.The A elevator is because the number of calls (n
A) more, so the evaluation number increase, evaluation number is converted to a K03.Relative therewith, the B elevator is because the number of calls is less, so evaluation number keeps original value.In the example of Figure 11, also be that the evaluation number of A elevator is less after the adjustment, therefore, final decision is given the A elevator with new call distribution.
Figure 11 and Fig. 9 are compared as can be known, in Figure 11,, can therefore can carry out more suitable evaluation with whole elevators as distributing object to estimate owing to distribute the candidate elevator not decide with threshold value.In addition, there is no need as number of calls limits value, dynamically to change the parameter big to performance impact according to ridership.Therefore, can not change, thereby can obtain the performance (latency performance) of all-the-time stable according to the variation of ridership because of parameter causes performance.
Figure 12 represents other embodiment of evaluation number adjustment gain function.In the diagram of curves of Figure 12, transverse axis (A01) expression is called out the stop number of floor levels of stopping because of distributing, the longitudinal axis (A02) expression evaluation number adjustment gain, the characteristic that the evaluation number adjustment gain function of Figure 12 is illustrated on the curve is, stopping number of floor levels increases more, then also correspondingly with the increment rate (slope in the curve) of stopping the cooresponding adjustment gain of number of floor levels becomes big more.Have following characteristic specifically: it is preceding to surpass the 1st threshold value nth1 (A11) at the stop number of floor levels, adjusting gain is 1 (characteristic of A10), in addition, it is preceding to surpass the 2nd threshold value nth2 (A13) at the stop number of floor levels, gain increases (characteristic of A12) with the slope of regulation, stopping number of floor levels above behind the 2nd threshold value nth2 (A13), gain increases (characteristic of A14) with bigger slope.
That is, above-mentioned other embodiment have the characteristic that the increment rate (ratio of increase) of the gain adjusted can increase along with the increase of stopping number of floor levels.Its result, along with the increase of stopping number of floor levels, the increment rate of adjusted evaluation number (ratio of increase) also increases.By making its increment rate of increase that adjusting gains has along with the stop number of floor levels also increase this characteristic, the further increase of inhibition stop number of floor levels forcefully can be accomplished to increase along with calling out the stop number of floor levels in a minute timing.
By making its increment rate of increase that adjusting gains has along with the stop number of floor levels also increase this characteristic, can accomplish to stop the number of floor levels increase in a minute timing along with calling out, further suppress to stop the increase of number of floor levels forcefully, thereby can when ridership is big, further suppress the increase of all running times of each lift car forcefully.That is to say, can improve ridership in the wait time characteristic shown in Figure 8 wait time characteristic when big more meticulously.
Figure 13 represents another other embodiment of evaluation number adjustment gain function.It is also the same with Figure 12 that the evaluation number of Figure 13 is adjusted gain function, and having the number of floor levels of stop increases more, then with also corresponding big more this characteristic that becomes of increment rate (slope in the curve) of stopping the cooresponding adjustment gain of number of floor levels.The evaluation number of Figure 13 is adjusted gain function and is not had the such characteristic of station line of polyline shaped shown in Figure 12, and has the nonlinear curve feature of steady increase.For example, preferably have 2 functions (parabola) shown in the following formula or 3 such characteristics of function.
ga＝γ·(n-1)
2(15)
In the formula, γ is the constant of regulation.Compare with the characteristic of Figure 12, Figure 13 has along with the increase of stopping number of floor levels, can make the rapid characteristic that strengthens of the increment rate (ratio of increase) of adjusting gain.Its result, along with the increase of stopping number of floor levels, the increment rate of adjusted evaluation number (ratio of increase) sharply strengthens.Adjusting gains has such characteristic by making, it is many more to make calling stop number of floor levels, then suppress to stop the increase of number of floor levels more forcefully, thereby can prevent has increased a bit because of stopping number of floor levels, for example only increase a floor, just caused adjusting gain great changes will take place that such situation takes place.
Figure 14 represents the elevator cluster management system of other embodiment.The various piece of Figure 14 is identical with Fig. 1.The structure of Figure 14 and the difference of Fig. 1 be, adjusts according to stopping number of floor levels as the wait time evaluation number of the main part of allocation evaluation value.The output of the wait time evaluation number calculating section 103 of Figure 14 and the output of stop number of floor levels calculating section 104 of distributing to the calling of each lift car are imported in the wait time evaluation number adjustment member 105, and the time evaluation number carries out revisal according to stopping number of floor levels.The method of adjustment of wait time evaluation number is identical with the method for adjustment of the allocation evaluation value that has illustrated.Therefore, more directly be reflected on the wait time, can carry out more suitable evaluation by calling out the influence of stopping number of floor levels.In addition, because can be specific for the relation of stopping number of floor levels and wait time, so the shape set of evaluation number adjustment gain also can be carried out more high-precision setting.
Claims (8)
1. an elevator cluster management system provides the elevator of service to manage many at a plurality of floors, it is characterized in that,
Described elevator cluster management system has: the destination floor entering device, and it is arranged on elevator lobby, is used to login the destination floor calling of lift car; And
Group management control apparatus, it is assigned as the described destination floor of being logined and calls out the described elevator that service is provided from described many elevators,
Along with the increase of the described destination floor call number that is assigned to of described elevator, suppress distribution to described elevator.
2. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has the number of floor levels of stop calculating section, and it calls out the stop number of floor levels that calculates described elevator according to the described destination floor of being logined,
Along with the increase of described stop number of floor levels, the distribution of described elevator is suppressed.
3. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has the stop number of floor levels calculating section of the stop number of floor levels that calculates described elevator,
Evaluation number when described group management control apparatus calculating calls out to described destination floor described allocation of elevators, and give described elevator with described destination floor call distribution according to this evaluation number, along with the increase of described stop number of floor levels, the computing value of described evaluation number is increased.
4. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has the stop number of floor levels calculating section of the stop number of floor levels that calculates described elevator,
Evaluation number when described group management control apparatus calculating calls out to described destination floor described allocation of elevators, and give described elevator with described destination floor call distribution according to this evaluation number, when described stop number of floor levels when specified value is following, described group management control apparatus does not change described evaluation number, and when described stop number of floor levels has surpassed specified value, then increase described evaluation number along with the increase of described stop number of floor levels.
5. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has:
Stop the number of floor levels calculating section, it calculates the stop number of floor levels of described elevator; Wait time evaluation number calculating section, it calculates evaluation number, the prediction latency time when this evaluation number represents to call out to described destination floor the described allocation of elevators; And distribute car to select part, its allocation of elevators that this evaluation number is good calls out for described destination floor,
When described stop number of floor levels when specified value is following, described group management control apparatus does not change described evaluation number, and when described stop number of floor levels has surpassed specified value, then increases described evaluation number along with the increase of described stop number of floor levels.
6. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has the stop number of floor levels calculating section of the stop number of floor levels that calculates described elevator,
Evaluation number when described group management control apparatus calculating calls out to described destination floor described allocation of elevators, and give described elevator with described destination floor call distribution according to this evaluation number, along with the increase of described stop number of floor levels, the increment rate of described evaluation number is increased.
7. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has the stop number of floor levels calculating section of the stop number of floor levels that calculates described elevator,
Evaluation number when described group management control apparatus calculating calls out to described destination floor described allocation of elevators, and give described elevator with described destination floor call distribution according to this evaluation number, along with the increase of described stop number of floor levels, the increment rate of described evaluation number is non-linearly increased.
8. elevator cluster management system as claimed in claim 1 is characterized in that,
Described group management control apparatus has the stop number of floor levels calculating section of the stop number of floor levels that calculates described elevator,
Evaluation number when described group management control apparatus calculating calls out to described destination floor described allocation of elevators, and give described elevator according to this evaluation number with described destination floor call distribution, calculate described evaluation number according to the number of floor levels in the building that is provided with described elevator and the command speed of elevator.
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| JP2009263037A (en) | 2009-11-12 |
| CN101565139B (en) | 2015-07-22 |
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