CN105487448A - Sensing data acquisition device on the basis of GPS synchronization time service - Google Patents
Sensing data acquisition device on the basis of GPS synchronization time service Download PDFInfo
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- CN105487448A CN105487448A CN201511023757.3A CN201511023757A CN105487448A CN 105487448 A CN105487448 A CN 105487448A CN 201511023757 A CN201511023757 A CN 201511023757A CN 105487448 A CN105487448 A CN 105487448A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Automation & Control Theory (AREA)
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Abstract
The present invention provides a sensing data acquisition device on the basis of GPS synchronization time service. The device provided by the invention comprises a sensor, a power supply module, a processor, a wireless data transmission module and a location and time service module. The sensor is connected with a FPGA chip, and sensing signals are transmitted to the processor through the FPGA chip; the location and time service module is a GPS receiver which is internally provided with a GPS pulse per second module; the control end of the GPS receiver is connected with the processor, and the signal triggering end is connected with the FPGA chip; the processor is respectively connected with the timing module and a data storage module, and is connected with the wireless data transmission module and a data collection terminal. The induction data of a sensor may be collected and the standard time-taking label of the time of occurrence is performed through the adoption of the accuracy and the absolute time scale of the GPS pulse per second, so that the time accuracy of a synchronous data acquisition system; and moreover, the distribution range of an inductor is greatly enhanced through adoption of the wireless data transmission mode.
Description
Technical field
The invention belongs to structure health monitoring apparatus field, be specifically related to a kind of sensing data harvester based on GPS sync identification.
Background technology
At present for the overall dynamics signature analysis of the large structures such as large bridge, all need, in tested works distribution, multiple Sensor is installed, these Sensors are distributed more widely, sometimes be difficult to being connected to all the sensors on same collector by cable, thus the synchronous acquisition of multiple measuring point cannot be realized.
The works monitored requires to have real-time, such as earthquake, typhoon, traffic hazard etc., need very correct time synchronous for each position Monitoring Data, and general data acquisition technology is difficult to reach detection requirement, if do not adopt Clock Synchronization Technology, very likely cause the temporal slight error of each monitoring point image data, not only cause the inaccurate of monitoring result, also had a strong impact on the research and analysis to works health condition.In prior art, the mode of the method for synchronization many employings synchronous signal line is realized between multiple devices, namely an equipment is as main frame, other equipment are as from machine, when starting to sample, synchronous clock sends to other from machine by differential signal line by line synchro by main frame, thus reaches the object of multiple devices synchronized sampling.Although this mode can solve the stationary problem between multiple devices, can not more than hundred meters but synchronous signal line can be subject to the general distances of impact such as decay, interference, adopt the mode of line synchro to make whole system reach the object of synchronous acquisition with regard to greatly limit like this, and the wiring human and material resources cost that this mode is brought also is very large.
Summary of the invention
The present invention, for solving the problem, provides a kind of sensing data harvester having high precision, time service and synchronously and by data wireless transmit.
The technical solution adopted in the present invention is:
A kind of sensing data harvester based on GPS sync identification, comprise sensor, power module, processor, wireless data transfer module, location and time service module, it is characterized in that, described sensor is connected with fpga chip, by fpga chip, transducing signal is transferred to described processor; Described location and time service module are gps receiver, and this gps receiver is built-in with GPS pulse per second (PPS) module, and this gps receiver control end is connected with described processor, and signal trigger end is connected to above-mentioned fpga chip; Described processor is also connected to timing module and data memory module, and is connected with data collection station by described wireless data transfer module.
Also be provided with signal conditioning circuit between described sensor and described fpga chip, by signal conditioning circuit, the output signal of sensor be converted to the signal adapting to fpga chip.
Be provided with clock unit in described timing module, the real-time clock of this clock unit is designated as benchmark and real time calibration with during the UTC of described gps receiver.
Described timing module is RTC real-time timepiece chip.
Described data memory module is SD card memory, and is provided with SD card card insertion end in harvester surface.
Described wireless data transfer module is DTU Wireless Transmitter.
Sensing data harvester based on GPS sync identification of the present invention, utilize accuracy and the absolute time mark of GPS pulse per second (PPS), can gather the sensed data of sensor, and standard time reading mark is carried out to the generation moment, thus ensure the time precision of Channels Synchronous Data Acquisition System; Adopt Wireless Data Transmission mode simultaneously, greatly expand the distribution range of inductor.
Accompanying drawing explanation
Fig. 1 is each model calling block diagram of the present invention.
Illustrate: 1-sensor, 2-signal conditioning circuit, 3-FPGA chip, 4-processor, 5-SD card memory, 6-RTC real-time timepiece chip, 7-GPS receiver, 8-DTU Wireless Transmitter.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
The sensing data harvester based on GPS sync identification as shown in the figure, comprise sensor (1), processor (4), wireless data transfer module and power module, processor (4) is Cortex-A8 processor (4).The output terminal of sensor (1) is connected with signal conditioning circuit (2), after sensor (1) output signal is converted to digital signal by signal conditioning circuit (2), be connected with fpga chip (3), by fpga chip (3), transducing signal transferred to described processor (4).Processor (4) is connected with gps receiver (7), this gps receiver (7) is built-in with GPS pulse per second (PPS) module, make GPS pps pulse per second signal as the timing signal of device, gps receiver (7) control end is connected with described processor (4), and its signal trigger end is connected to above-mentioned fpga chip (3).
Described processor (4) is also connected to RTC real-time timepiece chip (6) and SD card memory (5), the local moment of RTC real-time timepiece chip (6) is designated as benchmark and real time calibration with during the UTC of gps receiver (7), by synchronously tidying up of gps receiver (7), the data moment of the moment making the sensing data gathered of this device and the same apparatus being distributed in other positions is all consistent with UTC markers.Wireless data transfer module is DTU Wireless Transmitter (8), and by DTU Wireless Transmitter (8), the related data gathered by this harvester is sent to corresponding data collection station as required.
When this harvester uses, after all harvesters put respectively are all energized and start, corresponding acquisition terminal can read the presence of DTU Wireless Transmitter (8) in harvester, Wireless Transmitter until all harvesters is stablized online, the synchronous acquisition time is set by acquisition terminal and gathers duration, the 12 noon of such as every day is whole carries out synchronous acquisition, and gathering duration is 5 minutes.Then this temporal information can be wirelessly transmitted in each harvester by acquisition terminal, harvester can be stored in after receiving information by DTU Wireless Transmitter (8) in local SD card, and read local real-time time by RTC clock chip and this time compares, the UTC time that the local real-time time of harvester receives transmission by GPS carries out calibration also synchronously, because local real-time time affects by crystal drift and discrete type, collecting device can be fixed a certain moment every day and aim at gps receiver (7) UTC time of exporting, ensure that the time error of every day is in allowed band.
When harvester local zone time apart from long-range server settings acquisition time close to time, now processor (4) can control the operation of fpga chip (3) by logic level, fpga chip (3) utilizes GPS pulse per second (PPS) as timing signal simultaneously, make next GPS pulse per second (PPS) rising edge as trigger collection signal, and start countdown, at the end of countdown, fpga chip (3) in the harvester of all distributed points triggers all simultaneously, all harvesters are synchronously triggered and gathers the sensing data at place, thus the harvester synchronous acquisition achieved in super distributed region.After the duration of triggering collection data reaches setting, can be stored in the SD card memory (5) in harvester, finally by DTU Wireless Transmitter (8), sampling data transmitting be delivered to acquisition terminal again.
The above only have expressed the preferred embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion, improvement and substitute, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. the sensing data harvester based on GPS sync identification, comprise sensor, power module, processor, wireless data transfer module, location and time service module, it is characterized in that, described sensor is connected with fpga chip, by fpga chip, transducing signal is transferred to described processor; Described location and time service module are gps receiver, and this gps receiver is built-in with GPS pulse per second (PPS) module, and this gps receiver control end is connected with described processor, and signal trigger end is connected to above-mentioned fpga chip; Described processor is also connected to timing module and data memory module, and is connected with data collection station by described wireless data transfer module.
2. a kind of sensing data harvester based on GPS sync identification according to claim 1, it is characterized in that: between described sensor and described fpga chip, be also provided with signal conditioning circuit, by signal conditioning circuit, the output signal of sensor is converted to the signal adapting to fpga chip.
3. a kind of sensing data harvester based on GPS sync identification according to claim 1 and 2, it is characterized in that: be provided with clock unit in described timing module, the real-time clock of this clock unit is designated as benchmark and real time calibration with during the UTC of described gps receiver.
4. a kind of sensing data harvester based on GPS sync identification according to claim 1, is characterized in that: described timing module is RTC real-time timepiece chip.
5. a kind of sensing data harvester based on GPS sync identification according to claim 1, is characterized in that: described data memory module is SD card memory, and is provided with SD card card insertion end in harvester surface.
6. a kind of sensing data harvester based on GPS sync identification according to claim 1, is characterized in that: described wireless data transfer module is DTU Wireless Transmitter.
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| CN201511023757.3A CN105487448A (en) | 2015-12-30 | 2015-12-30 | Sensing data acquisition device on the basis of GPS synchronization time service |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341879A (en) * | 2016-05-24 | 2017-01-18 | 北京动量科技有限责任公司 | GPS time reference-based multi-point synchronous communication method and device |
| CN106406174A (en) * | 2016-09-29 | 2017-02-15 | 中国电子科技集团公司第二十九研究所 | Multi-module multi-channel acquisition synchronization system and the working method thereof |
| CN107092446A (en) * | 2017-06-21 | 2017-08-25 | 上海浅雪汽车电子有限公司 | Multi-data synchronous harvester and multi-data synchronous acquisition system |
| CN107678378A (en) * | 2017-12-05 | 2018-02-09 | 成都量之星科技有限公司 | Radio data processing system based on DSP Processor |
| CN108709577A (en) * | 2018-07-09 | 2018-10-26 | 北京华新创科信息技术有限公司 | Clocking method, device and the equipment of sensor |
| CN108845528A (en) * | 2018-07-04 | 2018-11-20 | 成都理工大学 | The full period parallel data recording device of multichannel number and recording method |
| CN108923878A (en) * | 2018-09-14 | 2018-11-30 | 扬州英迈克测控技术有限公司 | Based on the wireless sensor node synchronous with GPS time service of WiFi |
| CN109246638A (en) * | 2018-09-14 | 2019-01-18 | 扬州英迈克测控技术有限公司 | Based on the wireless collecting method with the signal synchronous collection system of GPS time service of WiFi |
| CN109309559A (en) * | 2018-09-14 | 2019-02-05 | 扬州英迈克测控技术有限公司 | Based on WiFi wirelessly with the distributed signal synchronous of GPS time service |
| CN110320854A (en) * | 2019-07-31 | 2019-10-11 | 王传义 | A kind of high frequency acquisition various dimensions multiple treating system of sensor analog quantity signal |
| CN111132201A (en) * | 2020-01-09 | 2020-05-08 | 华南理工大学 | Wireless measurement system based on UWB |
| CN111932236A (en) * | 2020-06-28 | 2020-11-13 | 郑州威科姆科技股份有限公司 | NB-IoT-based vehicle insurance duration charging device and reliability processing method |
| CN112578413A (en) * | 2020-11-13 | 2021-03-30 | 中国电子技术标准化研究院 | Timing synchronous timing method, device and remote synchronous timing system |
| CN114414188A (en) * | 2021-12-30 | 2022-04-29 | 北京无线电计量测试研究所 | Device for measuring impact environment of ejection test and configuration method thereof |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106341879A (en) * | 2016-05-24 | 2017-01-18 | 北京动量科技有限责任公司 | GPS time reference-based multi-point synchronous communication method and device |
| CN106406174A (en) * | 2016-09-29 | 2017-02-15 | 中国电子科技集团公司第二十九研究所 | Multi-module multi-channel acquisition synchronization system and the working method thereof |
| CN106406174B (en) * | 2016-09-29 | 2018-07-24 | 中国电子科技集团公司第二十九研究所 | A kind of multimode multichannel collecting synchronization system and working method |
| CN107092446A (en) * | 2017-06-21 | 2017-08-25 | 上海浅雪汽车电子有限公司 | Multi-data synchronous harvester and multi-data synchronous acquisition system |
| CN107678378A (en) * | 2017-12-05 | 2018-02-09 | 成都量之星科技有限公司 | Radio data processing system based on DSP Processor |
| CN108845528B (en) * | 2018-07-04 | 2021-04-27 | 成都理工大学 | Multi-channel full-time-period parallel data recording device and recording method |
| CN108845528A (en) * | 2018-07-04 | 2018-11-20 | 成都理工大学 | The full period parallel data recording device of multichannel number and recording method |
| CN108709577A (en) * | 2018-07-09 | 2018-10-26 | 北京华新创科信息技术有限公司 | Clocking method, device and the equipment of sensor |
| CN108923878B (en) * | 2018-09-14 | 2024-03-22 | 扬州英迈克测控技术有限公司 | Sensor node based on WiFi wireless and GPS time service synchronization |
| CN109309559A (en) * | 2018-09-14 | 2019-02-05 | 扬州英迈克测控技术有限公司 | Based on WiFi wirelessly with the distributed signal synchronous of GPS time service |
| CN109246638B (en) * | 2018-09-14 | 2021-02-05 | 扬州英迈克测控技术有限公司 | Data acquisition method of signal synchronous acquisition system based on WiFi wireless and GPS time service |
| CN109246638A (en) * | 2018-09-14 | 2019-01-18 | 扬州英迈克测控技术有限公司 | Based on the wireless collecting method with the signal synchronous collection system of GPS time service of WiFi |
| CN108923878A (en) * | 2018-09-14 | 2018-11-30 | 扬州英迈克测控技术有限公司 | Based on the wireless sensor node synchronous with GPS time service of WiFi |
| CN109309559B (en) * | 2018-09-14 | 2023-07-28 | 扬州英迈克测控技术有限公司 | Distributed signal synchronous acquisition system based on WiFi wireless and GPS time service |
| CN110320854A (en) * | 2019-07-31 | 2019-10-11 | 王传义 | A kind of high frequency acquisition various dimensions multiple treating system of sensor analog quantity signal |
| CN111132201A (en) * | 2020-01-09 | 2020-05-08 | 华南理工大学 | Wireless measurement system based on UWB |
| CN111132201B (en) * | 2020-01-09 | 2024-05-28 | 华南理工大学 | Wireless measurement system based on UWB |
| CN111932236A (en) * | 2020-06-28 | 2020-11-13 | 郑州威科姆科技股份有限公司 | NB-IoT-based vehicle insurance duration charging device and reliability processing method |
| CN111932236B (en) * | 2020-06-28 | 2021-10-01 | 郑州威科姆科技股份有限公司 | NB-IoT-based vehicle insurance duration charging device and reliability processing method |
| CN112578413A (en) * | 2020-11-13 | 2021-03-30 | 中国电子技术标准化研究院 | Timing synchronous timing method, device and remote synchronous timing system |
| CN114414188B (en) * | 2021-12-30 | 2024-03-29 | 北京无线电计量测试研究所 | Device for measuring impact environment of ejection test and configuration method thereof |
| CN114414188A (en) * | 2021-12-30 | 2022-04-29 | 北京无线电计量测试研究所 | Device for measuring impact environment of ejection test and configuration method thereof |
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