CN100388320C - Electronic electricity meter - Google Patents
Electronic electricity meter Download PDFInfo
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- CN100388320C CN100388320C CNB998010464A CN99801046A CN100388320C CN 100388320 C CN100388320 C CN 100388320C CN B998010464 A CNB998010464 A CN B998010464A CN 99801046 A CN99801046 A CN 99801046A CN 100388320 C CN100388320 C CN 100388320C
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- voltameter
- programming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/12—Payment architectures specially adapted for electronic shopping systems
- G06Q20/127—Shopping or accessing services according to a time-limitation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/0014—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for vending, access and use of specific services not covered anywhere else in G07F17/00
Abstract
An electronic electricity meter which, in one embodiment, includes a modem board, or unit, coupled to the meter microcomputer (20) and exchanges information between the meter (10) and a central computer (58) is described. Using signals supplied by the meter microcomputer (20) and the central computer (58), the modem unit (50) microcomputer can determine whether to exchange information between the meter and the central computer (58) and the proper time at which the information should be exchanged. In an exemplary embodiment, the modem unit (50) detects various conditions within the meter and responds by exchanging information with the central computer (58) at a proper, or pre-defined, time. The modem unit has two different basic modes, or states, of operation. These states of operation are sometimes referred to as the call originate mode and the call answer mode. Call originate refers to the mode of the unit when a condition occurs in meter 10 and information is being transmitted to the central computer (58) from the modem unit (50) utilizing a telephone line. The call is originated upon occurrence, for example of a power outage to the meter. In the call answer mode, the central computer originates a call to the meter. The central computer (58) can then transfer information to the meter, for example a new program can be stored in the modem unit memory.
Description
The related application reference
The interests of the 60/091st, No. 039 U.S. Provisional Application that this application form application was submitted on June 29th, 1998.
Background of invention
This invention relates to current measurement in general, or rather, relates to an electronic electricity meter, and it can be configured by a modulator-demod and sends information to a central computer.
In a lot of electronic electricity meters, can be undertaken by an optical port or an option board joint with communicating by letter of instrument microcomputer.For example, in some known instrument, provide an electrical connector just to make various option boards, for example a telephone modem communication board can be connected electrically on the instrument microcomputer.Adopt the modem communication plate, the central computer data from instrument that are usually used in collecting comprise accounting information.Valid data are from the modem communication plate, and data exist with a kind of predefined form (a kind of agreement of ANSI definition) in communication channel, and this channel connects the option board joint to the instrument microcomputer.
In order to reduce noise and public common event, for example outage, the number of calls, a modulator-demod need be provided, perhaps circuit board comes the situation in the measuring instrument, and at state continuance after one predefined period and the central computer exchange message.Simultaneously, a unit that also needs to provide such allows to revise operational factor.And further, need provide a such modulator-demod, it can be easily and links apace on the instrument, allows to set secret password simultaneously.
Summary of the invention
In typical a realization, a voltameter comprises a modem circuit of linking on the instrument microcomputer, perhaps unit, exchange message between instrument microcomputer and central computer data source.By the signal that instrumentation microcomputer and central computer provide, the various states of modulator-demod in can measuring instrument, and decision suitable time of carrying out message exchange.In one embodiment, modulator-demod comprises a microcomputer that a plurality of timers are arranged.
On the one hand, the present invention allows the password of instrument and modulator-demod to set.Exactly, when detect that external switch closes and the time, instrument and modulator-demod are placed in a password recovery state.External switch close and make instrument and modulator-demod to enter password simultaneously to return to form that new like this password just can enroll instrument and modulator-demod by central computer.A kind of like this structure has been avoided going the instrument point to reset relevant time and expense with the personnel that reset modulator-demod in the instrument shop or must send a specialized training with charge free.
On the other hand, the present invention's restriction is from the call number of instrument.Or rather, the incident that the modulator-demod Microcomputer Detecting is specific, and before central computer is issued in calling, wait for one predefined period.A kind of form is, after modulator-demod detected outage indication from the instrument microcomputer, modulator-demod was called out prior to cut off the power supply and delivered to central computer and wait for one period that can work out before.The modulator-demod microcomputer can further dispose, and makes that must have certain situation to take place to send to central computer in one predefined period calls out.If all incidents all do not take place in the time period of appointment, calling will can not given central computer.
And on the other hand, the present invention makes the calling of modulator-demod answer from central computer.Or rather, according to a kind of form, the instrument modulator-demod receives the new program information from central computer.The modulator-demod microcomputor program is stored in the nonvolatile memory of two sections.There is an inoperative section of storer in a new program, and the modulator-demod microcomputer is carried out the program from active section.If programming finishes, microcomputer should be active section to the inoperative section, and carried out new program.If but not end of programming, the modulator-demod microcomputer will continue to carry out the program that exists in the active section.These two sections have guaranteed that instrument can not enter by the state of part programming.
Also have on the other hand, the present invention uses and is configured to hypotactic a plurality of instrument.By using an independent telephone wire, exchange message between instrument and central computer.Or rather, each instrument comprises a modulator-demod that unique identifying number is arranged.Prior to the information of exchange from central computer, an identification number is imported into instrument.Each modulator-demodular unit microcomputer judge the identification number that transmitted whether with own storer in the identification number stored whether be complementary.If numbers match, this modulator-demod and central computer exchange message.The instrument of the identification number coupling that those discord are transmitted waits for and monitors the next identification number that transmits to judge whether it is a coupling.
Modulator-demod described above detects various states and responds the number of calls that these states reduce noise and public common event at a suitable time predefined.New operational factor also can pass to the modification of modulator-demod enable state and time parameter.Modulator-demod described above can allow password to rearrange, the modulator-demod and the user needn't prelist.Therefore, a new modulator-demod can be installed in the instrument very soon.
The accompanying drawing summary
Fig. 1 is the block scheme of an electron energy meter.
Fig. 2 is the block scheme according to the modulator-demod of one embodiment of the present of invention.
Fig. 3 is the operational flow diagram according to the instrument of one embodiment of the present of invention.
Fig. 4 is a process flow diagram, and the series of processing steps that detects an electronic electricity meter state is described.
Fig. 5 is a process flow diagram, and the series of processing steps that detects an electronic electricity meter password recovery state is described.
Fig. 6 is a process flow diagram, and the series of processing steps that detects an electronic electricity meter off-position is described.
Fig. 7 is a process flow diagram, illustrates the series of processing steps that an electronic electricity meter outage is called out is set.
Fig. 8 is a process flow diagram, and the series of processing steps that produces an electronic electricity meter status report is described.
Fig. 9 is a process flow diagram, and the series of processing steps of electronic electricity meter call answering state is described.
Figure 10 is the block scheme according to the master/slave structure of one embodiment of the present of invention.
Figure 11 is a process flow diagram, and the series of processing steps of the master/slave structure of electronic electricity meter is described.
Accompanying drawing describes in detail
Fig. 1 is the block scheme of an explanation exemplary electronic energy meter 10, but it is commercial exploitation, for example can obtain from General Electric Co. Limited (General Electric Company), CompanyAddress is 130 Main Street, Somersworth, N.H.03878, and be commonly referred to as the KV meter.The modulator-demod that describes in detail below the KV meter can be realized after modification.Though current device here and method are described, should be understood that the present invention is not confined to the realization of any one special instrument in the electronic electricity meter scope.The present invention can be used for and other being connected based on the instrument of microcomputer.
Referring now to Fig. 1, instrument 10 comprises voltage sensor 12 and current sensor 14.Be in operation, sensor 12 and 14 generally is connected to the power lead to the power supply of instrument location.Sensor 12 and 14 is connected to a modulus (A/D) converter 16, and the aanalogvoltage and the current signal of input are converted to digital signal.The output of converter 16 offers digital signal processor (DSP) 18.DSP18 offers microcomputer 20 with digitized measuring amount, for example, and V
2H, I
2H.Microcomputer 20 is according to the digitized measuring amount of DSP18, the measurement calculating and the function of adding.DSP18 can be that a gyp processor is revised back realization measurement function, for example, and the TMS320 model of Texas Instruments (Texas Instruments Company), CompanyAddress is P.O.Box 6102, Mail Station 3244, Temple, TX76503.
In one embodiment, microcomputer 20 also can be connected to an I/O (I/O) plate 28 and a function, perhaps high function, plate 30.DSP18 also directly provides and exports to high feature board 30.Microcomputer 20 also is connected to the programmable read only memory (EEPROM) 34 of an electric erasable by a control bus 32.I/O plate 28 and high feature board 30 also are connected to EEPROM34 by bus 32.
Standby power supply offers instrument 10 by the outage battery 36 that is connected to wide band power 38.In service normally, when not needing standby power supply, power to instrument element by power supply 38 by power lead.
The function of above-mentioned many elements and modification can be understood finely in measuring technique.The application is not towards these understandings and known function and modification.But towards following the method and structure of describing in detail more.In addition, though following described these method and structures in the hardware environment that Fig. 1 connects, illustrate, should be understood that these method and structures are not confined to realize in this environment.The main body method and structure can be realized in many other environment.
Also have, should be appreciated that the present invention can realize with many other microcomputers, and not only be confined to link to each other with microcomputer 20.Therefore, this speech of used here microcomputer is not confined to represent those in the prior art as the integrated circuit of microcomputer, but refer to microcomputer, processor, microcontroller widely, at integrated circuit and other the programmable circuit used.
Fig. 2 is the typical modem circuit according to one embodiment of the present of invention, perhaps unit, 50 block scheme.In general, microcomputer 20 is linked in the following mode of describing in detail more in unit 50, and the signal that is occurred based on unit 50 to small part, and unit 50 can judge whether instrument 10 should carry out following any action.
Now, with reference to Fig. 2, unit 50 comprises a microcomputer of linking microcomputer 20 52, a storer 54 and a modem circuit 56.Unit 50 is a swap data, and perhaps information provides a communication path between instrument 10 and central computer 58, perhaps connects.In one embodiment, microcomputer 52 comprises 60 and ROM (read-only memory) of a random access memory (RAM) (ROM) 62.Parameter after the setting and operation information, perhaps the data (not shown) is stored in the storer 54.For example, storer 54 can be the non-volatile memory apparatus of a ROM (read-only memory) such as electric erasable (EEPROM), though also can use the non-volatile memory apparatus of other types.Modem circuit 56 can be a gyp modem chip, the RC224AT model of Rochwell International company for example, CompanyAddress is Digital Communications Division, 4311Jamboree Road, Newport Beach, CA 92660.
Order, response and communication data exchange between microcomputer 52 and modem circuit 56.A telephone interface circuit 64 is connected to telephone wire 66 to modem circuit 56, and the information that makes like this can be carried out remote switch between instrument 10 and central computer 58.In one embodiment, modulator-demod comprises one a plurality of timer circuits 80 that are used for the timer circuit of minute.Timer circuit 80 comprises a real-time clock 82, outage timer 84, outage delay timer 86 and one and calls out delay timer 88.Real-time clock 82 produces a time value of representing current time and date, for example, constantly: divide: second second, month in and month out/everyday/every year.Timer 84,86 and 88 is used for measuring from a particular event, and perhaps back institute elapsed time takes place a situation.Timer 84,86 and 88 can be set initial value, and can increase on value or reduce, and when the effluxion set or in the past the back produces a signal.In another embodiment, timer circuit 80 can be separated with modulator-demod microcomputer 52.
For exchange message between instrument 10 and central computer 58, in one embodiment, a kind of exchanges data algorithm is written into modulator-demod 50.Exactly, algorithm is written into, and preserves, in the storer 62.Algorithm is carried out by microcomputer 52.
Fig. 3 has set forth flow process Figure 100, illustrates that microcomputer 52 carries out the performed treatment step of message exchange between instrument 10 and central computer 58.Especially, when instrument 10 energising startups 102, any time after perhaps instrument 10 powers up, various parameters are set up 104, put into storer 54.In one embodiment, parameter comprises the initial value of timer circuit 80, whether exactly, timer 84,85 and 88 initialization, outage are called out and be placed, how long instrument 10 should be waited for before calling out and calling that whether instrument 10 should be answered from central computer 58 placing.In addition, parameter be set and instrument 10 add power on after, outage delay timer 86 starts.
After parameter 104 was set, whether the operation of microcomputer 52 supervisory instruments 10 to judge, perhaps detected, have state to exist in the signal that offers modulator-demod 50, perhaps changes and takes place 106.State comprises mistake, warning and diagnostic state.If a kind of state is detected 106, information is transmitted or is exchanged 108 by modulator-demod 50.Particularly, microcomputer 52 detects the signal that is offered modulator-demodular unit microcomputer 52 by instrument microcomputer 20, and from the modification of the signal of central computer 58.Or rather, as shown in Figure 4, microcomputer 52 detects 106 following state or variations at least, and exchanges the information shown in 108.
Detected state 106
Message exchange 108
1. password recovery 110 recovers password 114
2. 118 outages of cutting off the power supply call out 122
3. predetermined status report 126 states call out 130
4. from calling 134 answer calls 138 of central computer
5. new program 142 refresh routines 146
6. master/slave pattern 150 master/slave renewals 154
Password recovery and recovery password
For example, if a new modulator-demod 50 is mounted and is connected on the microcomputer 20, instrument password and modulator-demod password not necessarily mate, and therefore, instrument 10 may not be expanded the functional of instrument 10.As the result who recovers password 114, modulator-demod 50 and microcomputer 20 will mate password.
Outage and outage are called out
Outage 118 and outage call out 122 refer to when power supply when instrument 10 is removed, notify central computer 58.Power-off signal offers modulator-demod 50 by instrument microcomputer 20, and the indication power supply is removed from instrument 10.Exactly, when power supply when instrument 10 is removed, the power-off signal that is provided by microcomputer 20 becomes true state by false state.As shown in Figure 6, or rather, when microcomputer 52 detects outage 118 the time, electric power provides 220 to microcomputer 52 from outage battery 36.Microcomputer 52 upgrades the 222 meter status signals that exist in the storer 54.Then, outage timer 84 starts 224, and the outage delay timer stops, and value is preserved 226 advance storer 54.Then, use microcomputer 54 to monitor that the values of 228 outage timers 84 judge that the value of outage timer 84 is whether in an effective scope.If instrument 10 is not recovered power supply before being in effective range prior to the value of outage timer 84, microcomputer 52 check 230 exist in the storer 54 before outage call out finish parameter, judge whether because of outage calling of this placements.If the parameter of finishing that outage is called out before existing in the storer 54 is false state, a calling is placed 232 to central computer 58 with as described below.But if the parameter of finishing that outage is in the past called out is to be in true state, microcomputer 52 checks that 234 exist the value of the outage delay timer 86 in the storer 54 whether to judge this value a predefine, in the perhaps effective scope.If should be worth in predefined scope, central computer 58 is put in a calling.If but this value has exceeded effective range, the microcomputer 52 238 outage delay timers 86 that reset, and wait for that power supply supplies with instrument 10.
The value that changes outage timer 84 prevents the noise calling of power-off time less than timer 84 setting values.In addition, outage delay timer 86 can be configured to prevent the noise calling of transition situation.For example, typical outage may comprise a series of power source change before the power supply complete obiteration, and normally in service, because the short-term outage may take place for wind power lead or other comparatively of short duration disturbances.In addition, before power supply thoroughly recovered, the processing of repairing local distribution fault usually produced some and then of short duration power ups of power down.Repeated call for fear of a plurality of instrument generations, outage timer 84 and outage delay timer 86 can be configured to require before outage of generation is called out, power supply must be removed one predefined period, and instrument 10 must be by one effective period of continued power.Exactly, if the value of timer 84 and 86 not in their effective ranges separately, calling will can not put on the central computer 56.
With reference to Fig. 7, when calling 236 of placement is to central computer 58, microcomputer 52 initialization 250 modem circuits 56.Initialization 250 comprises that configuration circuit 56 is to calling of central computer 58 generations, for call out telephone numbers of definition and definition parameter and other messaging parameters as known in the art about baud rate, handshake-type to central computer 58.If the outage calling parameter is in true state, illustrate in the outage condition next call and will be placed that 252 1 periods that define of microcomputer 52 delays allow outage battery 36 be full of.Call out delay timer 88 and start 254, and microcomputer 52 supervision 256 calling delay timers 88, equal defined value, perhaps effective range in parameter setting 104 up to the value of calling out timer.When the value of calling out delay timer was in effective range, status report produced 258 by microcomputer 52, and a calling is placed 260 to central computer 58 by modem circuit 56.Produce after 258 at status report, modem circuit 56 provides status report to telephony interface 64 and telephone wire 66, and status report is transmitted to central computer 58 like this.If an end of calling 262, modem circuit 56 provide 264 1 outage call completion signal to microcomputer 52, and power supply removes 266 from modem circuit 56.
Do not finish if call out, calling delay timer 88 is reset and starts 268.When microcomputer 52 detects 270 to calling out delay timer 88 in effective range the time, second calling is placed 272 to central computer 58.Second calling can be placed to aforesaid same telephone number, perhaps can be placed to second telephone number to central computer 58.As mentioned above, if microcomputer 52 detects 274 to second end of callings, modem circuit 56 provides 262 outage call completion signal to microcomputer 52, and power supply removes 264 from modem circuit 56.Do not finish if call out, modulator-demod 50 stops and waiting for power supply supply instrument 10.Also can add additional configurations, for example, instrument 10 can be attempted any amount and be called out and any amount jack per station before stopping.
As shown in Figure 8, in one embodiment, the status report of generation 258 comprises the status information that sends in two tables that are kept at storer 54, perhaps data.Exactly, microcomputer 20 is periodically carried out a diagnosis, and perhaps test routine upgrades the state of 300 instrument 10.The result of diagnostics routines passes to microcomputer 52 from microcomputer 20, and preserves 302 in a meter status table of storer 54.A modulator-demod routine is carried out the state that upgrades 304 modulator-demods 50 by microcomputer 52.The modulator-demod state that produces is existed in the modem state table of storer 54.Produce 258 and pass to the status report of central computer 58, comprise the content of meter status table and modulator-demod state table.
Another aspect of the present invention, in order to reduce the power consumption of outage battery 36,36 on outage battery gives modulator-demod 50 power supplies between turnoff time.Exactly, in power cut-off incident, placing 260 callings to before the central computer 58, microcomputer 52 upgrades the modem state tables, and preserves update mode in storer.Then, unwanted circuit component is set to low power supply sleep pattern, calls out up to outage to be placed.In case modulator-demod 50 is linked central computer 58, status report comprises all necessary status informations, exchanges by transmitting meter status table and modem state table and central computer 58.As a result, the time decreased that transmission information is required, this has reduced the power consumption of outage battery 36.
Another aspect of the present invention, in one embodiment, a kind of statistics communication of algorithms is loaded into central computer 58.Exactly, this algorithm is loaded, and preserves, and advances in the storer of central computer (not having expression).Then, this algorithm is by the microcomputer in the central computer 58, and perhaps microprocessor (not showing) is carried out.The information-related statistics of central computer microcomputer record and exchange between instrument 10 and central computer 58.This statistics comprises status information and error message.Status information is about common byte count and packet counted data.Error message is special and number of errors, byte number relevant with mistake and the data that relevant number-of-packet is correlated with mistake.The ending of message exchange between instrument 10 and central computer 58, central computer microcomputer analysis statistics.If some part of data meets a previous wrong standard that is provided with, data are deposited in the central computer 58 so.This algorithm makes to have only the data of care to be saved, thereby has saved storage space and analysis time.
Another aspect of the present invention is called out to central computer simultaneously for the instrument that prevents all outage area, and for each instrument 10, the effective range of calling out delay timer 88 can be unique.In one embodiment, produce a random delay for each instrument 10.Random delay is based on a sequence number seed from an encryption, the perhaps generation of the random number of the particular range of initial value.For example, in one embodiment, the effective range of calling out delay timer 84 is based on unique sequence number of instrument 10.The instrumentation sequence number, microcomputer 52 produces an effective range for outage timer 84.Exactly, microcomputer 52 uses the sequence number of encrypting to produce effective range for outage timer 84.The principle of encrypting is will produce diverse effective range for outage timer 84 from two ciphering sequence numbers that two continuous instrument sequence numbers produce.As a result, the instrument that is in outage area is called out in different moment generation outages.The effective range of each instrument 10 can comprise any effective range by setting.
Booked call detects and booked call
Booked call detect 126 and booked call 130 be meant detection clock 82 defined current times strictly according to the facts the time, whether setting, or in the predefined effective range.If the value of real-time clock 82 is in effective range, status report as described above, is transmitted to central computer 58.Exactly,, comprise accounting information, give central computer 58 for delivery status report, real-time clock 82 be monitored judge current time whether with storer 54 in the value of being deposited be complementary.Booked call be worth constantly can define be appointed as sometime, certain day or their combination in date, a week certain day, one month.When detecting 126 when real-time clock 88 is in effective range, as mentioned above, modulator-demod 50 is initiated a calling to central computer 58.Then, status report comprises accounting information, is transmitted to central computer 58.
Calling and answer calls from central computer
Calling 130 and answer calls 138 from central computer are meant that central computer 58 produces a calling and gives instrument 10.Exactly, as shown in Figure 9, central computer 58 uses telephone wire 66 to initiate a calling to instrument 10.When detecting calling, telephony interface provides an incoming signal to microcomputer 52.If call answering parameter detecting 300 is true, perhaps high state, microcomputer 52 provides a call answering signal to telephony interface 64 and modem circuit 56, calls out by answer 302 like this.After the calling of answering from central computer 58, modem circuit 56 and central computer 58 carry out handshake process 304, thereby data can exchange between central computer 58 and instrument 10.Data continue exchange 306, finish 308 up to exchange, and this moment, modem circuit 56 and central computer 58 hung up 310 separately, call out to stop.
New program and refresh routine
New program 142 and refresh routine 146 are meant from central computer 58 and transmit a new program to instrument 10.New program is passed to instrument 10 from central computer 58, thereby new procedures is deposited in the modulator-demod 50.Or rather, new procedures is passed to the operation that modulator-demod 50 changes instrument 10 from central computer 58.For example, new program can change the time of next booked call, the effective range and the call answering parameter of timer circuit 80.New program also can provide new telephone number for calling out central computer 58.
In one embodiment, new program deposits the storer 54 of two sections in.Prior to receiving the new procedures from central computer 58, two sections are defined by an active section, comprise the data of up-to-date establishment, perhaps program, an and inoperative section, the data of establishment before comprising.When a new procedures is received, new routine data is deposited the inoperative section.If programing work completes successfully, low when initial of programming end signal, perhaps false state, become true, perhaps high state.If the programming end signal is detected as high state, the work at present section becomes the inoperative section and the inoperative section becomes active section.
If the programming do not finish, and the programming end signal do not become high state, can send a program lost-call to central computer, thus the programming can finish.Place when calling out to instrument 10 when central computing machine 58, work originally and inoperative section are distributed and will be remained unchanged, because new program does not complete successfully.As a result, modulator-demod 50 will have a correct program always, comprise operational factor, so unit 50 can continue correct effect.
Master/slave calling and master/slave renewal
Master/slave calling 158 and master/slave renewal 162 are to point to one group the instrument calling of linking central computer 58 more than two with a single phone line 66 is arranged.Exactly, as shown in figure 10, instrument 500A, 500B, 500C, 500D and 500E link central computer 58 with a single phone line 66.An instrument, for example instrument 500A is designated as master instrument, and residue instrument 500B, 500C, 500D and 500E are designated as from instrument.Each instrument comprises a unique identification number, for example is kept in the storer 54.Use telephone wire 66, information, perhaps data exchange between central computer 58 and instrument 500A, 500B, 500C, 500D and 500E.
With reference to Figure 11, when telephone wire 66 was used in a call from central computer 58 towards instrument 500A, 500B, 500C, 500D and 500E, instrument 500A, 500B, 500C, 500D and 500E answered 602 and call out.Exactly, shake hands after 604 at master instrument 500A and central computer 58, instrument 500A, 500B, 500C, 500D and 500E monitor 606 1 the input message that transmit from central computer 58, perhaps packets separately.Input message comprises an identification number, corresponding to one among instrument 500A, 500B, 500C, 500D and the 500E.Instrument 500A, 500B, 500C, 500D and 500E judge the identification number whether 608 identification numbers that transmitted are deposited in the storer 54 corresponding to instrument separately separately.If the unique identifying number that identification number that is transmitted and instrument are deposited is complementary, the transmission line with the modulator-demod 50 of the instrument of identification number coupling enables 610, and the transmission line of the modulator-demod of all unmatched instrument forbidding 612.For example, if the identification number of identification number and instrument 500C is complementary, the modulator-demod transmission line of instrument 500A, 500B, 500D and 500E will be forbidden.At central computer 58 with after effectively the message exchange between the instrument 500C finishes, instrument 500A, 500B, 500C, 500D and 500E monitor 606 next input message.This routine will continue always, up to central computer 58 end calls and hang up.
In addition, this master/slave structure make instrument 500A, 500B, 500C, 500D and 500E as mentioned above instrumentation 10 make a call to central computer 58.Exactly, when detecting a kind of situation 106, among instrument 500A, 500B, 500C, 500D and the 500E one makes a call to central computer 58.In one embodiment, instrument 500A, 500B, 500C, 500D and 500E are configured to make each instrument that a unique effective scope and a schedule time effective range at timer circuit 80 parameters is arranged.For example, in order to prevent instrument 500A, 500B, 500C, 500D, and 500E produces calling and not interruption mutually, instrument 500A, 500B, 500C, 500D, and 500E can be configured to only just can make a call in a specific time window, for example, instrument 500A, the 10:00AM-10:15AM on October 21st, 98, instrument 500B, the 10:16AM-10:30AM on October 22nd, 98, instrument 500C, the 10:45AM-10:59AM on October 22nd, 98, instrument 500D, the 10:16AM-10:30AM on October 23rd, 98, and instrument 500E, the 10:16AM-10:30AM on October 24th, 98.Each instrument has a unique time window to produce calling to central computer 58.
Also have, at one group, perhaps group, in all instrument concurrent probably, for example, power down, instrument 500A, 500B, 500C, 500D and 500E are configured to have only an instrument to produce to central computer 58 to call out.Exactly, the parameter that makes a call can be established into modulator-demod 50, and microcomputer 52 is under an embargo and makes a call to central computer 58 like this.
Above-described, when a situation arises in the instrument, modulator-demod is exchange message between instrument and central computer.Then, the modulator-demod microcomputer is according to the parameter evaluation situation of being deposited in the storer 54.Use additional parameter, microcomputer just can judge whether information should exchange between central computer and instrument.Also have, modulator-demod also is formulated into the suitable time of deciding exchange message between central computer and instrument.Such modulator-demod should be able to reduce the number of times to the noise type call of central computer.In addition, modulator-demod is formulated into and allows instrument maintenance work, and no matter the type of error situation.
Though this invention is described with various specific realizations, the technology skilful person will recognize that this invention can be able to practical application by the modification in the spirit and scope of claim.
Claims (21)
1. the method for the voltameter of programming, described voltameter comprises microcomputer and modulator-demodular unit, and described method comprises the following step:
This voltameter of programming;
Determine whether the voltameter programming is finished; And
If the voltameter programming is finished, then will offer modulator-demodular unit from microcomputer through the signal of programming.
2. method according to claim 1, if wherein the voltameter programming is finished, the signal through programming that then will offer voltameter moves from the first configuration to the second configuration.
3. method according to claim 2, if wherein remain on first state through the signal of programming, then voltameter is initiated the program lost-call to central computer.
4. method according to claim 1, wherein the voltameter modulator-demodular unit comprises the nonvolatile memory with two sections, and this voltameter of wherein programming comprises determines that programming data is stored in first section of storer or the step in second section at last.
5. method according to claim 4, if wherein programming data is stored in first section at last, then described method comprises the step that segment signal is set to first state.
6. method according to claim 5, if wherein programming data is stored in second section at last, then described method comprises the step that segment signal is set to second state.
7. method according to claim 6 also comprises following steps:
Determine whether this segment signal is in first state; With
If segment signal is in first state, then carry out the program be stored in first section of the storer.
8. method according to claim 7 also comprises following steps:
If segment signal is in second state, then carry out the program be stored in second section of the storer.
9. a programmable electronic electricity meter comprises microcomputer and the modulator-demodular unit that is coupled to central computer, and described voltameter is configured to:
Utilize described modulator-demodular unit to receive programming data to be used to the voltameter of programming from central computer;
Determine whether the voltameter programming is finished; And
If the voltameter programming is finished, then will be provided to described modulator-demodular unit from described microcomputer through the signal of programming.
10. voltameter according to claim 9, if wherein the voltameter programming is finished, the signal through programming that then will offer modulator-demodular unit moves from the first configuration to the second configuration.
11. voltameter according to claim 10, if wherein remain on first state through the signal of programming, then described voltameter is initiated the program lost-call to central computer.
12. voltameter according to claim 9, wherein the voltameter modulator-demodular unit comprises the nonvolatile memory with at least two sections, the described voltameter of wherein programming, described voltameter are configured to determine that programming data is stored in first section of described modem memory or in second section at last.
13. voltameter according to claim 12 is stored in described first section at last if wherein said voltameter is configured to programming data, then segment signal is set to first state.
14. voltameter according to claim 13 is stored in described second section at last if wherein said voltameter is configured to programming data, then described segment signal is set to second state.
15. voltameter according to claim 14 also is configured to:
Determine whether described segment signal is in described first state; With
If segment signal is in described first state, then carry out the program be stored in first section of the described storer.
16. voltameter according to claim 15 also is configured to:
If segment signal is in second state, then carry out the program be stored in second section of the described storer.
17. the method whether definite voltameter programming is finished comprises following steps:
A voltameter that receives programming data is provided;
Be provided at the nonvolatile memory with two sections in the described voltameter, wherein first section is active section, is used to store the programming data of up-to-date reception, and second section is non-active section, the programming data that receives before being used to store; And
Determine whether a programming end signal that receives is in high state, wherein:
(i) if this signal is in high state, then current active section becomes the inoperative section, thereby definite described voltameter programming is finished;
If (ii) this signal is in low state, then original active section and the distribution of inoperative section remain unchanged, thereby definite described voltameter programming is not finished.
18. method according to claim 17, if wherein programming data is stored in first section at last, then described method comprises the step that segment signal is set to low state.
19. method according to claim 17, if wherein programming data is stored in second section at last, then described method comprises the step that segment signal is set to high state.
20. method according to claim 18 also comprises following steps:
Determine whether this segment signal is in low state; With
If segment signal is in low state, then carry out the program be stored in first section of the storer.
21. method according to claim 19 also comprises following steps:
If segment signal is in high state, then carry out the program be stored in second section of the storer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9103998P | 1998-06-29 | 1998-06-29 | |
| US60/091,039 | 1998-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1273659A CN1273659A (en) | 2000-11-15 |
| CN100388320C true CN100388320C (en) | 2008-05-14 |
Family
ID=22225582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998010464A Expired - Fee Related CN100388320C (en) | 1998-06-29 | 1999-06-28 | Electronic electricity meter |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1040453A4 (en) |
| CN (1) | CN100388320C (en) |
| AU (1) | AU4838399A (en) |
| BR (1) | BR9906588B1 (en) |
| CA (1) | CA2301700C (en) |
| WO (1) | WO2000000935A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007017985A1 (en) * | 2007-04-07 | 2008-10-09 | EnBW Energie Baden-Württemberg AG | A supply media amount detection system and method of operating a utility volume detection system |
| CN106124851A (en) * | 2016-06-13 | 2016-11-16 | 罗文凤 | A kind of control method for intelligent electric meter |
| CN111063183B (en) * | 2019-12-25 | 2021-03-19 | 宁波三星医疗电气股份有限公司 | Bluetooth-based electric energy meter statistical method and device and storage medium |
| CN112793420B (en) * | 2021-01-15 | 2022-07-19 | 东风柳州汽车有限公司 | Vehicle combination instrument initialization method, device, equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309363A (en) * | 1992-03-05 | 1994-05-03 | Frank M. Graves | Remotely rechargeable postage meter |
| CN1138911A (en) * | 1994-01-03 | 1996-12-25 | 邮政有限公司 | Storing, retrieving and automatically printing postage on mail |
| US5710706A (en) * | 1994-12-23 | 1998-01-20 | Francotyp-Postalia Ag & Co. | Method for entering data into a scale |
| CN1170907A (en) * | 1996-05-17 | 1998-01-21 | 三星电子株式会社 | Computer system with automatic answering device and method for automatic answering |
| CN1225186A (en) * | 1996-12-18 | 1999-08-04 | 亚历山大S·奥伦斯坦 | Secured system for accessing application services from a remote station |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697182A (en) * | 1985-09-16 | 1987-09-29 | Sangamo Weston, Inc. | Method of and system for accumulating verifiable energy demand data from remote electricity meters |
| US5469365A (en) * | 1993-01-25 | 1995-11-21 | Customs Ideas | Power monitor unit |
| US5742512A (en) * | 1995-11-30 | 1998-04-21 | General Electric Company | Electronic electricity meters |
-
1999
- 1999-06-28 AU AU48383/99A patent/AU4838399A/en not_active Abandoned
- 1999-06-28 CN CNB998010464A patent/CN100388320C/en not_active Expired - Fee Related
- 1999-06-28 EP EP99931978A patent/EP1040453A4/en not_active Ceased
- 1999-06-28 BR BRPI9906588-6B1A patent/BR9906588B1/en not_active IP Right Cessation
- 1999-06-28 CA CA2301700A patent/CA2301700C/en not_active Expired - Fee Related
- 1999-06-28 WO PCT/US1999/014575 patent/WO2000000935A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309363A (en) * | 1992-03-05 | 1994-05-03 | Frank M. Graves | Remotely rechargeable postage meter |
| CN1138911A (en) * | 1994-01-03 | 1996-12-25 | 邮政有限公司 | Storing, retrieving and automatically printing postage on mail |
| US5710706A (en) * | 1994-12-23 | 1998-01-20 | Francotyp-Postalia Ag & Co. | Method for entering data into a scale |
| CN1170907A (en) * | 1996-05-17 | 1998-01-21 | 三星电子株式会社 | Computer system with automatic answering device and method for automatic answering |
| CN1225186A (en) * | 1996-12-18 | 1999-08-04 | 亚历山大S·奥伦斯坦 | Secured system for accessing application services from a remote station |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000000935A1 (en) | 2000-01-06 |
| EP1040453A1 (en) | 2000-10-04 |
| AU4838399A (en) | 2000-01-17 |
| WO2000000935A9 (en) | 2000-10-26 |
| EP1040453A4 (en) | 2001-05-02 |
| CN1273659A (en) | 2000-11-15 |
| CA2301700C (en) | 2013-06-25 |
| BR9906588A (en) | 2000-07-18 |
| CA2301700A1 (en) | 2000-01-06 |
| BR9906588B1 (en) | 2014-10-21 |
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