CN103138791B - 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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- CN103138791B CN103138791B CN201310028130.1A CN201310028130A CN103138791B CN 103138791 B CN103138791 B CN 103138791B CN 201310028130 A CN201310028130 A CN 201310028130A CN 103138791 B CN103138791 B CN 103138791B
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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 clocking technique 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
Based on the perception of biorhythm feedback and dyskinesia evaluating system in prior art, need the cycle of accurate measurement testee rhythmic movement, namely host computer exports the fixing pilot signal of a frequency, experimenter makes action feedback according to pilot signal, time difference of feedback signal and pilot signal follow perception and motor function closely related.Due to operating system platforms such as Windows and non-real time operating system, when it receives the cycle timing markers that transducer uploads, accurate timing can not be carried out, and the time precision of its Guiding single scquence produced is also without ensureing; Although comparatively simple at sensor side increase timer, the data processing complicated sequence a large amount of with stable transmission under radio frequency communication pattern are very difficult.
Summary of the invention
Main purpose of the present invention realizes accurate clocking method for providing a kind of trunk module in conjunction with host computer, can realize accurate timing that is simple, convenient, low cost.
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 in per second and be sent to host computer, and described method comprises:
The action feedback signal that trunk module receiving sensor sends, records the time of described action feedback signal;
According to described action feedback signal Time Calculation the action feedback signal time and per second in time difference of last time marking, and the described time difference is uploaded to host computer, provide accurately time data to host computer.
Preferably, formula is passed through in the calculating of described time difference: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving 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 in per second and be sent to host computer, and it comprises:
Receiving record unit, for the action feedback signal that receiving sensor sends, records the time of described action feedback signal;
Calculate providing unit, for the action feedback signal time according to described action feedback signal Time Calculation and per second in time difference of last time marking, and the described time difference is uploaded to host computer, provide accurately time data to host computer.
Preferably, formula is passed through in the calculating of described time difference: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving 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 in per second and be sent to host computer, and it comprises:
Receiving record unit, for the action feedback signal that receiving sensor sends, records the time of described action feedback signal;
Calculate providing unit, for the action feedback signal time according to described action feedback signal Time Calculation and per second in time difference of last time marking, and the described time difference is uploaded to host computer, provide accurately time data to host computer;
Described host computer will send out one-step boot signal after often receiving the time marking of several trunk modules transmission.
Preferably, formula is passed through in the calculating of described time difference: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving action feedback signal, 0≤t<1000/m.
The present invention both ensure that the stability of radio-frequency communication, host computer also can be made according to providing accurate pilot signal and action feedback signal time for experimenter, make assessment result more accurate; Meanwhile, utilize the hardware that this trunk module itself is required, only add and change the accuracy of timekeeping that a little function just substantially increases master system platform, make timing easier and reduce cost.
Accompanying drawing explanation
Fig. 1 is that trunk module of the present invention realizes the steps flow chart schematic diagram in accurate clocking method one embodiment in conjunction with host computer;
Fig. 2 is the structural representation in trunk module one embodiment of the present invention;
Fig. 3 is that trunk module of the present invention realizes the structural representation in accurate timekeeping system one embodiment in conjunction with host computer.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1, a kind of trunk module of the present invention realizes an accurate clocking method embodiment in conjunction with host computer is proposed.This trunk module can have accurate clocking capability, and it will evenly produce several time markings in per second and be sent to host computer, and the method can comprise:
The action feedback signal that step S11, trunk module receiving sensor send, records the time of this action feedback signal;
Step S12, according to this this action feedback signal time of action feedback signal Time Calculation 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 radio-frequency communication module, therefore need to take or generate a serial ports and access radio-frequency communication relaying by this serial ports (such as USB interface), to realize the wireless telecommunications of PC to 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 trunk module generation per second 8 time markings, namely each time marking is spaced apart 125ms.And host computer often receives several time markings, namely Timing is several 125ms, therefore this host computer can carry out timing according to time marking number, such as receive 8 time markings and send a pilot signal (such as voice signal etc.), be 1 second and send a pilot signal, realize the accurate output of Guiding single scquence in host computer.
In 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 according to its judge voice signal sound the moment produce action feedback, such as knock 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, by following this voice signal rule, is striven for accomplishing knocking transducer and voice signal and is sounded and occur simultaneously.If this life entity knocks transducer moment and voice signal and sounds between the moment and there are differences, the assessment of dyskinesia can be carried out according to this difference.
The action feedback signal time of above-mentioned action feedback signal reception is the important parameter in dyskinesia assessment, and directly can have influence on the result of assessment, the accuracy of therefore 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 realizes timing by trunk module and sends host computer to.
Supposing that the sound guidance signal of host computer sends the cycle is 1 second (i.e. 8 time markings), to produce and after send 4 time markings (i.e. half period) when host computer receives trunk module, this host computer sends a sound guidance signal, this end cycle after receiving 4 time markings again.Then start second period, be pilot signal of sounding after waiting for half period equally, so circulate.Suppose after the n-th time marking after host computer sends sound guidance signal, the time that trunk module receives the action feedback signal of transducer is t(0≤t<125ms), so can calculate the time difference of the transmission sound guidance signal that time of experimenter's action feedback signal and host computer set as (1000-1000*n/8-t) ms, be (1000-125*n-t) ms.The time marking that above-mentioned host computer record receives and time difference are also added up, for the assessment of dyskinesia.
Above-mentioned trunk module realizes accurate clocking method in conjunction with host computer, both ensure that the stability of radio-frequency communication, host computer also can be made according to providing accurate pilot signal and action feedback signal time for experimenter, make assessment result more accurate; Meanwhile, utilize the hardware that this trunk module itself is required, only add and change the accuracy of timekeeping that a little function just substantially increases master system platform, make timing easier and reduce 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 in per second and be sent to host computer, and this trunk module 20 can comprise: receiving record unit 21 and calculate providing unit 22; This receiving record unit 21, for the action feedback signal that receiving sensor sends, records the time of this action feedback signal; This calculating providing unit 22, for according to this this action feedback signal time of action feedback signal Time Calculation 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 20 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 radio-frequency communication module, therefore need to take or generate a serial ports and access radio-frequency communication relaying by this serial ports (such as USB interface), to realize the wireless telecommunications of PC to 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 trunk module 20 generation per second 8 time markings, namely each time marking is spaced apart 125ms.And host computer often receives several time markings, namely Timing is several 125ms, therefore this host computer can carry out timing according to time marking number, such as receive 8 time markings and send a pilot signal (such as voice signal etc.), be 1 second and send a pilot signal, realize the accurate output of Guiding single scquence in host computer.
In 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 according to its judge voice signal sound the moment produce action feedback, such as knock 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, by following this voice signal rule, is striven for accomplishing knocking transducer and voice signal and is sounded and occur simultaneously.If this life entity knocks transducer moment and voice signal and sounds between the moment and there are differences, the assessment of dyskinesia can be carried out according to this difference.
The action feedback signal time of above-mentioned action feedback signal reception is the important parameter in dyskinesia assessment, and directly can have influence on the result of assessment, the accuracy of therefore 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 realizes timing by trunk module 20 and sends host computer to.
Supposing that the sound guidance signal of host computer sends the cycle is 1 second (i.e. 8 time markings), to produce and after send 4 time markings (i.e. half period) when host computer receives trunk module, this host computer sends a sound guidance signal, this end cycle after receiving 4 time markings again.Then start second period, be pilot signal of sounding after waiting for half period equally, so circulate.Suppose after the n-th time marking after host computer sends sound guidance signal, the time that trunk module 20 receives the action feedback signal of transducer is t(0≤t<125ms), so can calculate the time difference of the transmission sound guidance signal that time of experimenter's action feedback signal and host computer set as (1000-1000*n/8-t) ms, be (1000-125*n-t) ms.The time marking that above-mentioned host computer record receives and time difference are also added up, for the assessment of dyskinesia.
Above-mentioned trunk module 20, both ensure that the stability of radio-frequency communication, host computer also can be made according to providing accurate pilot signal and action feedback signal time for experimenter, make assessment result more accurate; Meanwhile, utilize required hardware of this trunk module 20 itself, only add and change the accuracy of timekeeping that a little function just substantially increases master system platform, make timing easier and reduce cost.
With reference to Fig. 3, a kind of trunk module of the present invention 20 realizes an accurate timekeeping system embodiment in conjunction with host computer is proposed.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 in per second and be sent to host computer 40, and this trunk module 20 can comprise: receiving record unit 21 and calculate providing unit 22; This receiving record unit 21, for the action feedback signal that receiving sensor 30 sends, records the time of this action feedback signal; This calculating providing unit 22, for according to this this action feedback signal time of action feedback signal Time Calculation and per second in time difference of last time marking, and this time difference is uploaded to host computer 40, provide accurately time data to host computer 40; This host computer 40 will send out one-step boot signal after often receiving the time marking of several trunk modules 20 transmission.
Formula is passed through in the calculating of above-mentioned time difference: time difference=1000-1000*n/m-t; The unit of this time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving action feedback signal, 0≤t<1000/m.
Above-mentioned trunk module 20 and host computer 40 can as described in above-described embodiments.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. trunk module realizes an 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 in per second and be sent to host computer, and described method comprises:
The action feedback signal that trunk module receiving sensor sends, records the time of described action feedback signal;
According to described action feedback signal Time Calculation the action feedback signal time and per second in time difference of last time marking, and the described time difference is uploaded to host computer, provide accurately time data to host computer.
2. trunk module according to claim 1 realizes accurate clocking method in conjunction with host computer, it is characterized in that, formula is passed through in the calculating of described time difference: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving action feedback signal, 0≤t<1000/m.
3. trunk module according to claim 1 and 2 realizes 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 in per second and be sent to host computer, and it comprises:
Receiving record unit, for the action feedback signal that receiving sensor sends, records the time of described action feedback signal;
Calculate providing unit, for the action feedback signal time according to described action feedback signal Time Calculation and per second in time difference of last time marking, and the described time difference is uploaded to host computer, provide accurately time data to host computer.
5. trunk module according to claim 4, is characterized in that, formula is passed through in the calculating of described time difference: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving action feedback signal, 0≤t<1000/m.
6. the trunk module according to claim 4 or 5, is characterized in that, after described trunk module sends several time markings, host computer will send out pilot signal.
7. trunk module realizes an 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 in per second and be sent to host computer, and it comprises:
Receiving record unit, for the action feedback signal that receiving sensor sends, records the time of described action feedback signal;
Calculate providing unit, for the action feedback signal time according to described action feedback signal Time Calculation and per second in time difference of last time marking, and the described time difference is uploaded to host computer, provide accurately time data to host computer;
Described host computer will send out one-step boot signal after often receiving the time marking of several trunk modules transmission.
8. trunk module according to claim 7 realizes accurate timekeeping system in conjunction with host computer, it is characterized in that, formula is passed through in the calculating of described time difference: time difference=1000-1000*n/m-t; The unit of described time difference is millisecond, and m is the number of generation time per second mark, and n is the time marking number produced within the current second receiving action feedback signal, and t is the time receiving action feedback signal, 0≤t<1000/m.
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| CN201310028130.1A CN103138791B (en) | 2013-01-24 | 2013-01-24 | Method and system for achieving accurate timing by combining relay module and upper computer and relay module |
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| CN103138791B true CN103138791B (en) | 2015-04-15 |
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| CN108460858B (en) * | 2018-03-29 | 2020-11-20 | 维高时代（北京）科技有限公司 | Intelligent match timing system |
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