CN103532681B - Cooperation measurement systems response formula bidirectional data communication method - Google Patents
Cooperation measurement systems response formula bidirectional data communication method Download PDFInfo
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- CN103532681B CN103532681B CN201210230605.0A CN201210230605A CN103532681B CN 103532681 B CN103532681 B CN 103532681B CN 201210230605 A CN201210230605 A CN 201210230605A CN 103532681 B CN103532681 B CN 103532681B
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Abstract
The cooperation measurement systems response formula bidirectional data communication method of the present invention comprises the following steps：First machine sends a frame data to the second machine；Second machine carries out FSK demodulation, obtain the first machine frame number and corresponding data, second machine judges whether the frame number for the data that the frame number and the second machine will be sent to the first machine meets the rule of definition, if meet, second machine receives data, and sends a frame data to the first machine, if do not met, this frame data is abandoned, and resends previous frame data；The data that first machine is sent to the second machine carry out FSK demodulation, obtain the second machine frame number and corresponding data, first machine judges whether the frame number for the data that the frame number and the first machine will be sent to the second machine meets the rule of definition, if meet, first machine receives data, and next frame data are sent, if do not met, retransmit this frame data；Repeat the above steps.
Description
Technical field
The present invention relates to two-way communication technology between kind of cooperative target, and in particular to a kind of cooperation measurement systems response formula is double
To data communications method.
Background technology
At present in cooperation measurement system, often there is the demand of communication between cooperative target, but cooperation measurement system is such as
Fruit is in space, it will is influenceed by many unreliable factors, communication system can become very unreliable, in communication process
Situations such as having frame losing and wrong frame occurs.
The content of the invention
It is an object of the invention to provide a kind of cooperation measurement systems response formula bidirectional data communication method, can effectively prevent
Situations such as frame losing and wrong frame occur in cooperation measurement system communication processes.
To achieve the above object, the present invention provides a kind of cooperation measurement systems response formula bidirectional data communication method,
Comprise the following steps：First machine sends the communication data of frame carrying frame number to the second machine；Second machine is sent to the first machine
Carrying frame number communication data carry out FSK demodulation, obtain this frame the first machine frame number and corresponding communication data, the second machine
Judge whether the second machine frame number of the communication data that this frame the first machine frame number will be sent with the second machine to the first machine meets
The rule of definition, if met, the second machine receives this frame traffic data that the first machine is sent, and completes the first machine to the second machine
Once communicate, and the communication data of frame carrying frame number is sent to the first machine, if do not met, the second machine abandons the first machine hair
This frame traffic data sent, and the previous frame sent to the first machine the second machine of repeating transmission to the first machine carries the communication number of frame number
According to；The communication data for the carrying frame number that first machine is sent to the second machine carries out FSK demodulation, obtains the second machine frame number and right
The communication data answered, microwave radar judge the of the communication data that the second machine frame number and the first machine will be sent to the second machine
Whether one machine frame number meets the rule of definition, if met, the first machine receives the communication data that second machine is sent, and completes
Once communication of second machine to the first machine, and next frame communication data is sent to the second machine, if do not met, the first machine abandons should
The communication data that second machine is sent, and retransmit this frame traffic data to the second machine；Repeat the above steps.
The beneficial effects of the invention are as follows：
1st, the present invention ensure that the reliable of data on the premise of communication format is not changed by way of being superimposed frame number
And verification；
2nd, inventive algorithm is realized simple, and carry automatic retransmission mechanism, ensure that in terms of the signal lose it is several in the case of
Intercepting and capturing can be realized；
3rd, the present invention also can guarantee that the reliability transmission of data in the case where signal to noise ratio is relatively low, equivalent on the other hand
Improve the signal to noise ratio of system；
4th, the present invention disobeys in system design is against any dedicated devices, and transplantability is guaranteed, in every field
It can be widely used.
Brief description of the drawings
The cooperation measurement systems response formula bidirectional data communication method of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the signal of the cooperation measurement systems response formula bidirectional data communication equipment applied to present pre-ferred embodiments
Figure.
Embodiment
The cooperation measurement systems response formula bidirectional data communication method of the present invention is made below with reference to Fig. 1 further detailed
Thin description.
Exemplified by data between microwave radar and answering machine communicate, the cooperation measurement systems response of the present invention is described in detail
Formula bidirectional data communication method：
Fig. 1 show the cooperation measurement systems response formula bidirectional data communication equipment applied to the present embodiment.The communication is set
Standby microwave radar host computer 11, the microwave radar field programmable gate array for including being arranged on microwave radar（Field-
Programmable Gate Array, FPGA）12nd, microwave radar digital signal processor（Digital Signal
Processor, DSP）13rd, microwave radar direct digital synthesis technique（Direct Digital Synthesizer, DDS）Source
14th, microwave radar up-conversion 15, microwave radar down coversion 16, microwave radar high-speed AD converter 17, and it is arranged at response
Answering machine host computer 21, answering machine FPGA 22, answering machine DSP 23, answering machine DDS sources 24, answering machine up-conversion 25 on machine,
Answering machine down coversion 26, answering machine high-speed AD converter 27；
The microwave radar host computer 11, microwave radar FPGA 12 and microwave radar DSP 13 are bi-directionally connected successively, described
Microwave radar DDS sources 14 are connected with the microwave radar FPGA 12, the microwave radar up-conversion 15 and the microwave radar
DDS sources 14 connect, and the microwave radar down coversion 16 passes through microwave radar high-speed AD converter 17 and the microwave radar
FPGA 12 is connected；
The answering machine host computer 21, answering machine FPGA 22 and answering machine DSP 23 are bi-directionally connected successively, the answering machine
DDS sources 24 are connected with the answering machine FPGA 22, and the answering machine up-conversion 25 is connected with the answering machine DDS sources 24, described
Answering machine down coversion 26 is connected by answering machine high-speed AD converter 27 with the answering machine FPGA 22.
In the present embodiment, FPGA and DSP interface all use EMIF interfaces, are communicated between FPGA and host computer using 422,
Completed by RS422 chips, DDS sources use AD9910 special chips.
After the microwave radar host computer 11 and answering machine host computer 21 start, the moment sends communication data to other side,
And the communication data that reception other side sends, for convenience of description, with the microwave radar host computer 11 to the response
Machine host computer 21 sends communication data and is illustrated starting at：
The cooperation measurement systems response formula bidirectional data communication method of the present embodiment comprises the following steps：
Step 1, microwave radar sends the communication data of frame carrying frame number to answering machine；
The step 1 specifically comprises the following steps：
Step 1.1, microwave radar host computer 11 inputs one section of 422 information by RS422 chips to microwave radar FPGA 12
（That is a frame traffic data）；
Step 1.2, microwave radar DSP 13 by EMIF interfaces by the frame traffic data read in array, and by the array with
Frame number is encoded, and obtains carrying the communication data of frame number, preserves the communication data of the carrying frame number；
In the present invention, microwave radar sets a frame number to each frame traffic data for oneself being sent to answering machine, together
Sample, answering machine is also provided with a frame number to each frame traffic data for oneself being sent to microwave radar, i.e., frame number is with leading to
Letter data corresponds（I.e. one-to-one binding）, in order to distinguish, the frame sequence of the communication data sent to microwave radar to answering machine
The frame number for being known as the communication data for microwave radar frame number, sent to answering machine to microwave radar is referred to as answering machine frame sequence
Number；
According to the communication protocols of regulation between microwave radar host computer 11, microwave radar FPGA 12 and microwave radar DSP 13
View carries out data transmission；
Coded system can carry out odd, even parity check as desired, in the case where system redundancy is enough, can also enter
The more complicated decoding such as row Viterbi decoding, to ensure the accuracy of data and error adrrectability；
Step 1.3, the communication data of the carrying frame number is through microwave radar FPGA 12, microwave radar DDS sources 14, microwave
Sent after radar up-conversion 15；
The microwave radar FPGA 12 reads the carrying frame sequence by EMIF interfaces from the microwave radar DSP 13
Number communication data, and control information is write to the control in the microwave radar DDS sources 14 according to the control mode of AD9910 chips
In word processed, ensure that the microwave radar DDS sources 14 export the analog intermediate frequency signal of different frequency point；
The microwave radar up-conversion 15 is used to analog intermediate frequency signal being converted to microwave analog signal；
Step 2, the communication data for the carrying frame number that answering machine is sent to microwave radar carries out FSK demodulation, obtains this
Frame microwave radar frame number and corresponding communication data, answering machine judge that this frame microwave radar frame number and answering machine will be to micro-
Whether the answering machine frame number for the communication data that ripple radar is sent meets the rule of definition, if met, performs step 3, if
Do not meet, then perform step 4；
Down coversion 26 of the communication data through answering machine for the carrying frame number that the microwave radar up-conversion 15 is sent, answer
Send to answering machine DSP 23 after answering machine high-speed AD converter 27, answering machine FPGA 22, completed by the answering machine DSP 23
FSK demodulations judge；
The answering machine down coversion 26 is used to microwave analog signal being converted to analog intermediate frequency signal；
The answering machine high-speed AD converter 27 is used to analog intermediate frequency signal being converted to digital intermediate frequency signal；
The answering machine frame sequence for the communication data that will be sent for this frame microwave radar frame number and answering machine to microwave radar
Number difference setting certain value, such as set difference as 3, if this frame microwave radar frame number and answering machine will be to microwave radars
The difference of the answering machine frame number of the communication data of transmission is equal to 3, it is believed that meets the rule of definition, if this frame microwave radar frame sequence
Number and answering machine will to microwave radar send communication data answering machine frame number difference be not equal to 3, then it is assumed that do not meet
The rule of definition；
Step 3, answering machine receives this frame traffic data that microwave radar is sent, and completes microwave radar to the one of answering machine
Secondary communication, and to microwave radar send a frame carry frame number communication data（Communication of the answering machine to microwave radar）；
Answering machine DSP 23 preserves this frame microwave radar frame number and corresponding communication data, and by corresponding communication data
Answering machine host computer 21 is sent to by answering machine FPGA 22 according to the communication protocol of regulation, completes microwave radar to answering machine
A frame data communication；
Communication of the answering machine to microwave radar is specific as follows：The answering machine host computer 21 is by RS422 chips to described
Answering machine FPGA 22 inputs one section of 422 information（422 information that answering machine is sent to track machine）, the answering machine DSP 23 is logical
Cross 422 information that EMIF interfaces send the answering machine to track machine and read in array, and by the array and frame number（Answering machine frame
Sequence number, for the previous frame communication data that answering machine is sent to microwave radar, the answering machine frame number communicates in the previous frame
Add one on the answering machine frame number of data）Encoded, preserve the coding information and the answering machine frame number；The coding information
Sent after answering machine FPGA 22, answering machine DDS sources 24, answering machine up-conversion 25；
Step 4, answering machine abandons microwave radar and sends this frame traffic data come, and retransmits previous frame to microwave radar
Carry the communication data of frame number（The communication data that the previous frame carries frame number is that answering machine is sent to microwave radar）；
Answering machine DSP 23 is by answering machine FPGA 22, answering machine DDS sources 24, answering machine up-conversion 25 to microwave radar
Send；
Step 5, the communication data for the carrying frame number that microwave radar is sent to answering machine carries out FSK demodulation, is answered
Machine frame number and corresponding communication data are answered, microwave radar judges that the answering machine frame number and microwave radar will be sent out to answering machine
Whether the microwave radar frame number of the communication data sent meets the rule of definition, if met, microwave radar receives the response i.e.
The communication data sent, once communication of the answering machine to microwave radar is completed, and next frame communication data is sent to answering machine,
Microwave radar frame number will accordingly add one, if do not met, microwave radar abandons the communication data that the answering machine is sent, and to
Answering machine retransmits this frame traffic data, and microwave radar frame number is constant；
The communication data for the carrying frame number that answering machine is sent is through microwave radar down coversion 16, microwave radar high speed analog-digital conversion
Converter 17, microwave radar FPGA 12 are sent to microwave radar DSP 13, and FSK demodulation is completed by the microwave radar DSP 13
And judgement；
Step 6, return to step 1.
After microwave radar sends the first frame traffic data, without waiting for next frame being directly transmitted, until spending system and prolonging
When, microwave radar initially receives the frame number that answering machine is fed back, and hereafter, only frame number meets predefined rule,
Microwave radar can just send next frame（Answering machine similarly sends communication data, and microwave radar frame number and answering machine frame number
It is synchronous）, accordingly even when frame losing or error code occurs in centre, can also find to retransmit in time in time, substantially increase communication can
By property.
Claims (1)
- A kind of 1. cooperation measurement systems response formula bidirectional data communication method, it is characterised in that comprise the following steps：First machine sends the communication data of frame carrying frame number to the second machine；The communication data for the carrying frame number that second machine is sent to the first machine carries out FSK demodulation, obtains this frame the first machine frame sequence Number and corresponding communication data, the second machine judge the communication number that this frame the first machine frame number and the second machine will be sent to the first machine According to the second machine frame number whether meet the rule of definition, if met, the second machine receives this frame traffic for sending of the first machine Data, once communication of first machine to the second machine is completed, and the communication data of frame carrying frame number is sent to the first machine, if Do not meet, the second machine abandons this frame traffic data that the first machine is sent, and retransmits the second machine to the first machine and sent to the first machine Previous frame carry frame number communication data；First machine the second machine is sent carrying frame number communication data carry out FSK demodulation, obtain the second machine frame number and Corresponding communication data, the first machine judge the of the communication data that the second machine frame number and the first machine will be sent to the second machine Whether one machine frame number meets the rule of definition, if met, the first machine receives the communication data that second machine is sent, and completes Once communication of second machine to the first machine, and next frame communication data is sent to the second machine, if do not met, the first machine abandons should The communication data that second machine is sent, and the frame sent to the second machine repeating transmission first machine to the second machine carries frame number Communication data；Repeat the above steps.
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| CN201210230605.0A CN103532681B (en) | 2012-07-05 | 2012-07-05 | Cooperation measurement systems response formula bidirectional data communication method |
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| CN105611489A (en) * | 2016-01-20 | 2016-05-25 | 深圳市金溢科技股份有限公司 | Terminal, base station and communication mechanism applied in wide area internet of things M2M (Machine to Machine) communication network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1411198A (en) * | 2001-09-25 | 2003-04-16 | 义隆电子股份有限公司 | Method of detecting and restoring lost data in radio communication and its system |
| CN1567781A (en) * | 2003-06-23 | 2005-01-19 | 中兴通讯股份有限公司 | A method for improving air signal transmission quality of CDMA system |
| CN101267425A (en) * | 2007-03-16 | 2008-09-17 | 上海贝电实业股份有限公司 | Inter-board interface communication protocol for dynamic environment distributed monitoring system |
| CN101277173A (en) * | 2008-05-07 | 2008-10-01 | 中国电子科技集团公司第三十研究所 | Data answering method for shortwave ARQ data transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008096304A2 (en) * | 2007-02-09 | 2008-08-14 | Nxp B.V. | Transmission method, transmitter and data processing system comprising a transmitter |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411198A (en) * | 2001-09-25 | 2003-04-16 | 义隆电子股份有限公司 | Method of detecting and restoring lost data in radio communication and its system |
| CN1567781A (en) * | 2003-06-23 | 2005-01-19 | 中兴通讯股份有限公司 | A method for improving air signal transmission quality of CDMA system |
| CN101267425A (en) * | 2007-03-16 | 2008-09-17 | 上海贝电实业股份有限公司 | Inter-board interface communication protocol for dynamic environment distributed monitoring system |
| CN101277173A (en) * | 2008-05-07 | 2008-10-01 | 中国电子科技集团公司第三十研究所 | Data answering method for shortwave ARQ data transmission |
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