CN103138791A - Method and system for achieving accurate timing by combining relay module and upper computer and relay module - Google Patents
Method and system for achieving accurate timing by combining relay module and upper computer and relay module Download PDFInfo
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- CN103138791A CN103138791A CN2013100281301A CN201310028130A CN103138791A CN 103138791 A CN103138791 A CN 103138791A CN 2013100281301 A CN2013100281301 A CN 2013100281301A CN 201310028130 A CN201310028130 A CN 201310028130A CN 103138791 A CN103138791 A CN 103138791A
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Abstract
The invention discloses a method and system for achieving accurate timing by combining a relay module and an upper computer and the relay module. The relay module is provided with an accurate timing function, and the relay module can evenly generate a plurality of time stamps in each second and send the time stamps to the upper computer. The method comprises that the relay module receives movement feedback signals sent by a sensor and receives time of the movement feedback signals; and a time difference between the movement feedback signal time and a final time stamp in each second is calculated according to the movement feedback signal time, and the time difference is uploaded to the upper computer to provide accurate time data to the upper computer. The method and system and the relay module guarantee stability of radio frequency, enable the upper computer to provide precise pilot signal and movement feedback signal time for a subject and enable assessment results to be accurate; simultaneously necessary hardware of the relay module is used, only fewer functions are added and changed to greatly improve timing accuracy of an upper computer system platform, and time is simple and reduces cost.
Description
Technical field
The present invention relates to the accurate timing technical field of host computer, particularly relate to a kind of trunk module and realize accurate clocking method, system and trunk module in conjunction with host computer.
Background technology
The perception and the dyskinesia evaluating system that feed back based on the rhythm and pace of moving things in prior art, the cycle that needs accurate measurement testee rhythmic movement, it is the fixing pilot signal of frequency of host computer output, the experimenter makes the action feedback according to pilot signal, and the time difference of feedback signal and pilot signal is closely related with perception and motor function.Due to operating system platform and non-real time operating system such as Windows, when its cycle timing of receiving that transducer is uploaded identifies, can not carry out accurate timing, and the time precision of the Guiding single scquence of its generation is also without ensureing; Although comparatively simple at sensor side increase timer, process a large amount of data of complicated sequence and stable transmission very difficult under the radio frequency communication pattern.
Summary of the invention
Main purpose of the present invention can realize simple, convenient, accurate timing cheaply for providing a kind of trunk module to realize accurate clocking method in conjunction with host computer.
The present invention proposes a kind of trunk module and realizes accurate clocking method in conjunction with host computer, and described trunk module has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and described method comprises:
The action feedback signal that the trunk module receiving sensor sends, the time of recording described action feedback signal;
According to the time difference of last time marking in described described action feedback signal time of action feedback signal Time Calculation and per second, and the described time difference is uploaded to host computer, provides accurately time data to host computer.
Preferably, the calculating of described time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
Preferably, after described trunk module sends several time markings, host computer will send out pilot signal.
The present invention also proposes a kind of trunk module, has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and it comprises:
The receiving record unit is used for the action feedback signal that receiving sensor sends, the time of recording described action feedback signal;
Calculating provides the unit, is used for the time difference according to described described action feedback signal time of action feedback signal Time Calculation and last time marking of per second, and the described time difference is uploaded to host computer, provides accurately time data to host computer.
Preferably, the calculating of described time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
Preferably, after described trunk module sends several time markings, host computer will send out pilot signal.
The present invention also proposes a kind of trunk module and realizes accurate timekeeping system in conjunction with host computer, comprises trunk module and host computer; Described trunk module has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and it comprises:
The receiving record unit is used for the action feedback signal that receiving sensor sends, the time of recording described action feedback signal;
Calculating provides the unit, is used for the time difference according to described described action feedback signal time of action feedback signal Time Calculation and last time marking of per second, and the described time difference is uploaded to host computer, provides accurately time data to host computer;
After the time marking that several trunk modules of the every reception of described host computer send, will send out the one-step boot signal.
Preferably, the calculating of described time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
The present invention had both guaranteed the stability of radio-frequency communication, also can make host computer according to accurate pilot signal and the action feedback signal time is provided for the experimenter, made assessment result more accurate; Simultaneously, utilize the essential hardware of this trunk module itself, only add and change a little function and just greatly improved the accuracy of timekeeping of master system platform, make timing easier and reduced cost.
Description of drawings
To be trunk module of the present invention realize steps flow chart schematic diagram in accurate clocking method one embodiment in conjunction with host computer to Fig. 1;
Fig. 2 is the structural representation in trunk module one embodiment of the present invention;
To be trunk module of the present invention realize structural representation in accurate timekeeping system one embodiment in conjunction with host computer to Fig. 3.
The realization of the object of the invention, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, propose a kind of trunk module of the present invention and realize an embodiment of accurate clocking method in conjunction with host computer.This trunk module can have accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and the method can comprise:
The action feedback signal that step S11, trunk module receiving sensor send, the time of recording this action feedback signal;
Step S12, according to this action feedback signal Time Calculation should action feedback signal time and per second in time difference of last time marking, and this time difference is uploaded to host computer, provide accurately time data to host computer.
Trunk module in the present embodiment can be (nRF) radio-frequency communication relaying, and this radio-frequency communication relaying can comprise a Transmit Receive Unit and a micro controller (MCU) usually, and MCU is responsible for controlling the transmitting-receiving that Transmit Receive Unit carries out signal.Above-mentioned host computer can be the equipment such as PC (PC), because PC does not generally carry the radio-frequency communication module, therefore need to take or generate a serial ports and access the radio-frequency communication relaying by this serial ports (such as USB interface), to realize that PC is to the wireless telecommunications of transducer.This radio-frequency communication relaying is a miniature embedded system, has accurate clocking capability, and it identifies to host computer with certain frequency uplink time.
If the trunk module per second produces 8 time markings, namely each time marking is spaced apart 125ms.And host computer often receives several time markings, be that Timing is several 125ms, therefore this host computer can carry out timing according to the time marking number, send a pilot signal (such as voice signal etc.) such as receiving 8 time markings, be 1 second and send a pilot signal, realize the accurate output of Guiding single scquence in host computer.
In the dyskinesia assessment, host computer can produce regular pilot signal (such as voice signal etc.) by the cycle, after life entity is familiar with the rule of this voice signal, it can judge that this voice signal can at a time sound, and sound according to the voice signal of its judgement and constantly produce the action feedback, such as knocking sensor.This sensor sensing sends to trunk module to knocking rear generation action feedback signal, feeds back to host computer by trunk module.
Life entity is by following this voice signal rule, strives for accomplishing to knock transducer and voice signal and sounds and occur simultaneously.If there are differences between this life entity knocks transducer constantly and voice signal sounds constantly, can carry out according to this difference the assessment of dyskinesia.
The action feedback signal time that above-mentioned action feedback signal receives is the important parameter in the dyskinesia assessment, can directly have influence on the result of assessment, so the accuracy of timing is particularly important.Owing to being difficult to accurate timing in host computer, in the present embodiment, trunk module has accurate clocking capability, therefore can realize timing and send host computer to by trunk module.
The sound guidance signal transmission cycle of supposing host computer is 1 second (i.e. 8 time markings), after 4 time markings (being half period) that host computer reception trunk module produces and sends, this host computer sends a sound guidance signal, this end cycle after receiving again 4 time markings.Then beginning second period, is sound after the wait half period pilot signal, so circulation equally.Suppose n time marking back after host computer sends the sound guidance signal, trunk module receives that the time of the action feedback signal of transducer is t(0≤t＜125ms), can calculating so the experimenter, to move the time difference of the transmission sound guidance signal that time of feedback signal and host computer set be (1000-1000*n/8-t) ms, is (1000-125*n-t) ms.The time marking that above-mentioned host computer record receives and time difference and statistics are used for the assessment of dyskinesia.
Above-mentioned trunk module is realized accurate clocking method in conjunction with host computer, has both guaranteed the stability of radio-frequency communication, also can make host computer according to accurate pilot signal and the action feedback signal time is provided for the experimenter, makes assessment result more accurate; Simultaneously, utilize the essential hardware of this trunk module itself, only add and change a little function and just greatly improved the accuracy of timekeeping of master system platform, make timing easier and reduced cost.
With reference to Fig. 2, an embodiment of a kind of trunk module 20 of the present invention is proposed.This trunk module 20 can have accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and this trunk module 20 can comprise: receiving record unit 21 and calculating provide unit 22; This receiving record unit 21 is used for the action feedback signal that receiving sensor sends, the time of recording this action feedback signal; This calculating provides unit 22, and being used for should action feedback signal time and time difference of last time marking of per second according to this action feedback signal Time Calculation, and this time difference is uploaded to host computer, provides accurately time data to host computer.
If trunk module 20 per seconds produce 8 time markings, namely each time marking is spaced apart 125ms.And host computer often receives several time markings, be that Timing is several 125ms, therefore this host computer can carry out timing according to the time marking number, send a pilot signal (such as voice signal etc.) such as receiving 8 time markings, be 1 second and send a pilot signal, realize the accurate output of Guiding single scquence in host computer.
In the dyskinesia assessment, host computer can produce regular pilot signal (such as voice signal etc.) by the cycle, after life entity is familiar with the rule of this voice signal, it can judge that this voice signal can at a time sound, and sound according to the voice signal of its judgement and constantly produce the action feedback, such as knocking sensor.This sensor sensing sends to trunk module to knocking rear generation action feedback signal, feeds back to host computer by trunk module.
Life entity is by following this voice signal rule, strives for accomplishing to knock transducer and voice signal and sounds and occur simultaneously.If there are differences between this life entity knocks transducer constantly and voice signal sounds constantly, can carry out according to this difference the assessment of dyskinesia.
The action feedback signal time that above-mentioned action feedback signal receives is the important parameter in the dyskinesia assessment, can directly have influence on the result of assessment, so the accuracy of timing is particularly important.Owing to being difficult to accurate timing in host computer, in the present embodiment, trunk module 20 has accurate clocking capability, therefore can realize timing and send host computer to by trunk module 20.
The sound guidance signal transmission cycle of supposing host computer is 1 second (i.e. 8 time markings), after 4 time markings (being half period) that host computer reception trunk module produces and sends, this host computer sends a sound guidance signal, this end cycle after receiving again 4 time markings.Then beginning second period, is sound after the wait half period pilot signal, so circulation equally.Suppose n time marking back after host computer sends the sound guidance signal, trunk module 20 receives that the time of the action feedback signal of transducer is t(0≤t＜125ms), can calculating so the experimenter, to move the time difference of the transmission sound guidance signal that time of feedback signal and host computer set be (1000-1000*n/8-t) ms, is (1000-125*n-t) ms.The time marking that above-mentioned host computer record receives and time difference and statistics are used for the assessment of dyskinesia.
Above-mentioned trunk module 20 had both guaranteed the stability of radio-frequency communication, also can make host computer according to accurate pilot signal and the action feedback signal time is provided for the experimenter, made assessment result more accurate; Simultaneously, utilize the essential hardware of this trunk module 20 itself, only add and change a little function and just greatly improved the accuracy of timekeeping of master system platform, make timing easier and reduced cost.
With reference to Fig. 3, propose a kind of trunk module 20 of the present invention and realize an embodiment of accurate timekeeping system in conjunction with host computer.This system can comprise trunk module 20 and host computer 40; This trunk module 20 has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer 40 in per second, and this trunk module 20 can comprise: receiving record unit 21 and calculating provide unit 22; This receiving record unit 21 is used for the action feedback signal that receiving sensor 30 sends, the time of recording this action feedback signal; This calculating provides unit 22, and being used for should action feedback signal time and time difference of last time marking of per second according to this action feedback signal Time Calculation, and this time difference is uploaded to host computer 40, provides accurately time data to host computer 40; After the time marking that several trunk modules 20 of the every reception of this host computer 40 send, will send out the one-step boot signal.
The calculating of above-mentioned time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of this time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
Above-mentioned trunk module 20 and host computer 40 can be described in above-mentioned embodiment.
The above is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (8)
1. a trunk module is realized accurate clocking method in conjunction with host computer, it is characterized in that, described trunk module has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and described method comprises:
The action feedback signal that the trunk module receiving sensor sends, the time of recording described action feedback signal;
According to the time difference of last time marking in described described action feedback signal time of action feedback signal Time Calculation and per second, and the described time difference is uploaded to host computer, provides accurately time data to host computer.
2. trunk module according to claim 1 is realized accurate clocking method in conjunction with host computer, it is characterized in that, the calculating of described time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
3. trunk module according to claim 1 and 2 is realized accurate clocking method in conjunction with host computer, it is characterized in that, after described trunk module sends several time markings, host computer will send out pilot signal.
4. a trunk module, is characterized in that, has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and it comprises:
The receiving record unit is used for the action feedback signal that receiving sensor sends, the time of recording described action feedback signal;
Calculating provides the unit, is used for the time difference according to described described action feedback signal time of action feedback signal Time Calculation and last time marking of per second, and the described time difference is uploaded to host computer, provides accurately time data to host computer.
5. trunk module according to claim 4, is characterized in that, the calculating of described time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
6. according to claim 4 or 5 described trunk modules, is characterized in that, after described trunk module sends several time markings, host computer will send out pilot signal.
7. a trunk module is realized accurate timekeeping system in conjunction with host computer, it is characterized in that, comprises trunk module and host computer; Described trunk module has accurate clocking capability, and it will evenly produce several time markings and be sent to host computer in per second, and it comprises:
The receiving record unit is used for the action feedback signal that receiving sensor sends, the time of recording described action feedback signal;
Calculating provides the unit, is used for the time difference according to described described action feedback signal time of action feedback signal Time Calculation and last time marking of per second, and the described time difference is uploaded to host computer, provides accurately time data to host computer;
After the time marking that several trunk modules of the every reception of described host computer send, will send out the one-step boot signal.
8. trunk module according to claim 7 is realized accurate timekeeping system in conjunction with host computer, it is characterized in that, the calculating of described time difference is to pass through formula: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of per second generation time sign, and n is for receiving the time marking number that has produced in the current second of action feedback signal, and t is the time that receives the action feedback signal, 0≤t＜1000/m.
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