CN202372325U - Vibration and static and dynamic strain signal wireless data acquisition system for bridge - Google Patents
Vibration and static and dynamic strain signal wireless data acquisition system for bridge Download PDFInfo
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- CN202372325U CN202372325U CN2011204364475U CN201120436447U CN202372325U CN 202372325 U CN202372325 U CN 202372325U CN 2011204364475 U CN2011204364475 U CN 2011204364475U CN 201120436447 U CN201120436447 U CN 201120436447U CN 202372325 U CN202372325 U CN 202372325U
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Abstract
The utility model relates to a vibration and static and dynamic strain signal wireless data acquisition system for a bridge. The system consists of a sensor, a wireless static and dynamic state signal acquisition instrument and a computer, wherein the wireless static and dynamic state signal acquisition instrument comprises a strain signal conditioning module, an analogue-to-digital (A/D) signal conversion module, a micro controller unit (MCU), an RS232 interface and a power supply module; an analogue signal of the sensor is converted into a digital signal by the A/D signal conversion module after passing through the strain signal conditioning module; the digital signal is transmitted to the computer through the MCU, the RS232 interface or wireless ZigBee; and test data is stored, displayed and printed by the computer. A wireless transmission module has a router function; and networking modes such as a mesh network, a star-like network, a chain network and a peer-to-peer network are realized. Real low-power consumption automatic networking acquisition or transmission can be performed; and the system is suitable for wireless data acquisition of large-scale test points. By using the system, the stability and the anti-interference performance of a test system are improved; the work intensity of testing staff can be greatly lightened; and the detection efficiency can be improved.
Description
Technical field
The utility model belongs to the bridge measuring technology, is specifically related to a kind of vibration and sound strain signal wireless data acquisition system of bridge.
Background technology
In recent years, the detection of bridge had obtained paying attention to widely.The physical quantity that a more complete detection need relate to the bridge do is many; Therefore might run into various test problem; In addition since actual test condition or testing apparatus limit; The measurement of possible some physical quantity is difficult to obtain comparatively ideal result, and therefore need further analyzing also, the amount relevant with other compares.The measurement and analysis instrument of reliable in quality, stable performance becomes the important assurance that data are accurate, reliable, precision is high.
At present; Basically all adopt wired mode for bridge monitoring, detection system; Tradition bridge checkout equipment is made up of sensor+conditioning device+four parts such as A/D system+computer; Between each several part, be equipped with the signal cable line then and transmit, need many times of cost to be used for Installation and Debugging during legacy equipment is tested at the scene, and often because trifling problems such as circuit connection cause system not run well.On the other hand for the test of bridge; The distal sensor simulating signal often causes signal attenuation owing to the long meeting of cable in transmission course; Need accurate test number; Must carry out signal scaling by the belt length line, confirm the calibration value of sensor again, the on-the-spot noise of introducing of long cable also can't be isolated sometimes.The particularly test of deformation type sensor signal, the introducing of long cable can cause the imbalance of electric bridge, has influenced the measurement range of strainmeter, for the strain testing system that does not support long line, in addition can cause the overload and can't test.Traditional structure detection The Application of Technology effect receives the restriction of the following aspects: 1, adopt cable to be connected between checkout equipment and the sensor, apart from being restricted the stability of test, poor anti jamming capability; 2, mountain area particularly in the open air, problem such as test electricity consumption and bridge sealing cooperating have big difficulty; 3, it is low to adopt traditional detection system that large complicated bridge structure is carried out detection efficiency, and on-the-spot I&M is inconvenient, and it is big to detect instrument and labour cost that cycle grows the detection that causes.Because the uncertainty of detection system and the difficulty of system's installation and maintenance are bigger, classic method comparatively wastes time and energy, and workload is big in large bridge is measured.
Summary of the invention
The utility model technical matters to be solved is to overcome above-mentioned deficiency; A kind of vibration and sound strain signal wireless data acquisition system of bridge are provided; This system has integrated sensor, signal condition module, signal acquisition module and single-chip microcomputer in the integration test equipment of one; Improve the stability and the anti-interference of test macro, can alleviate testing staff's working strength widely, improved detection efficiency.
The technical scheme of the utility model: a kind of vibration of bridge and sound strain signal wireless data acquisition system; It comprises wireless senser, wireless dynamic/static signal Acquisition Instrument and computing machine composition; Wireless senser is connected with wireless dynamic/static signal Acquisition Instrument through radio communication circuit, and wireless dynamic/static signal Acquisition Instrument is connected with computing machine through radio communication circuit; Wireless dynamic/static signal Acquisition Instrument comprises strain signal conditioning module, A/D signal conversion module, single-chip microprocessor MCU, R232 interface and power module; Convert digital signal into through the A/D signal conversion module after the wireless senser simulating signal process strain signal conditioning module that the RF transceiver of wireless dynamic/static signal Acquisition Instrument receives; Be transferred to computing machine through single-chip microcomputer, R232 interface or wireless ZigBee again, test data is preserved, is shown and print through computing machine.
Described wireless dynamic/static signal Acquisition Instrument is made up of plural Acquisition Instrument; Each Acquisition Instrument can carry out data acquisition separately; Embedded ZigBee technology route network agreement realizes mesh network, Star network; The networking mode of Chain Network and peer-to-peer network can carry out the automatic network-building collection or the transmission of real low-power consumption.The RJ45 interface is adopted in strain input, can directly utilize common netting twine to carry out the mode of connection of various bridge circuits, revises the strain testing circuit of the additional resistance that long lead introduces automatically.
The utility model compared with prior art has following beneficial effect: 1, the utility model is a high integration, low-power consumption, the 2.4GHz wireless network module of low-voltage.Size is suitable for being easy to field test for a short time.Module is integrated meets the RF transceiver and the high performance microprocessor of IEEE802.15.4 standard; And embedded ZigBee technical network agreement; Can carry out the automatic network-building collection or the transmission of real low-power consumption, be applicable to that wireless sensing, control and the data acquisition of extensive node used.2, best low-power consumption index, whole network agreement, network connection reliably and simple interface are provided.3, help the user to use the massive wireless sensor system with the fastest speed.4, module to guarantee to reach optimum performance, adopts professional Shielding Design through the radio-frequency performance design of Simulation and the strict radio frequency testing of specialty, makes module safety and stability more, and interface flexible is easy, is convenient to the user and connects all kinds sensor signal.5, adopt the distinctive strain bridge circuit mode of connection, revise the additional resistance that long lead is introduced automatically.6, can substitute traditional test equipment,,, create huge economic and social benefit the working strength that alleviates the testing staff widely, raising detection efficiency for bridge detection technique means are brought bigger facility.
Description of drawings
Fig. 1 is the structured flowchart of the utility model;
Fig. 2 is the structured flowchart of wireless dynamic/static signal Acquisition Instrument in the utility model.
Embodiment
A kind of vibration of bridge and sound strain signal wireless data acquisition system; It comprises wireless senser, wireless dynamic/static signal Acquisition Instrument and computing machine composition; Wireless senser is connected with wireless dynamic/static signal Acquisition Instrument through radio communication circuit, and wireless dynamic/static signal Acquisition Instrument is connected with computing machine through radio communication circuit; Wireless dynamic/static signal Acquisition Instrument comprises strain signal conditioning module, A/D signal conversion module, single-chip microcomputer, R232 interface and power module; Convert digital signal into through the A/D signal conversion module after the wireless senser simulating signal process strain signal conditioning module that the RF transceiver of wireless dynamic/static signal Acquisition Instrument receives; Be transferred to computing machine through single-chip microcomputer, R232 interface or wireless ZigBee again, test data is preserved, is shown and print through computing machine.
Described wireless dynamic/static signal Acquisition Instrument is made up of plural Acquisition Instrument, and each Acquisition Instrument carries out data acquisition separately, realizes cascade through receiving equipment, can realize data forwarding between the Acquisition Instrument.
Can send various transmission order to collector through computing machine, and when transmitting data the video data figure, can test data be preserved into the WORD formatted file at last, be convenient to subsequent analysis and handle.And possess the function of browsing data file afterwards, and can come graphic presentation by frame number, can check statistical parameters such as mean value, root-mean-square value.
Acquisition range comprises several wireless collection points, and the data of some points can be transmitted through other contiguous data collection points, and data are through repeatedly transmitting the increase greatly and the coverage extension that can realize communication distance.As long as have other data acquisition points just can realize data transmission in the certain limit around the collection point, need not consider the communication distance problem in the common wireless data sending system.Data are pooled to the data aggregation end at last after repeatedly transmitting, collecting terminal is again through wired, or the wireless computing machine that sends to carries out data processing.
Claims (2)
1. the vibration of a bridge and sound strain signal wireless data acquisition system; It comprises sensor, wireless dynamic/static signal Acquisition Instrument and computing machine composition; It is characterized in that wireless senser passes through radio communication circuit and is connected with wireless dynamic/static signal Acquisition Instrument, wireless dynamic/static signal Acquisition Instrument is connected with computing machine through radio communication circuit; Wireless dynamic/static signal Acquisition Instrument comprises strain signal conditioning module, A/D signal conversion module, single-chip microprocessor MCU, R232 interface and power module; Convert digital signal into through the A/D signal conversion module after the wireless senser simulating signal process strain signal conditioning module that the RF transceiver of wireless dynamic/static signal Acquisition Instrument receives; Be transferred to computing machine through single-chip microcomputer, R232 interface or wireless ZigBee again, test data is preserved, is shown and print through computing machine.
2. the vibration of bridge according to claim 1 and sound strain signal wireless data acquisition system; It is characterized in that described wireless dynamic/static signal Acquisition Instrument is made up of plural Acquisition Instrument, each Acquisition Instrument can carry out data acquisition separately, embedded ZigBee technology route network agreement; Realize mesh network; Star network, the networking mode of Chain Network and peer-to-peer network can carry out the automatic network-building collection or the transmission of real low-power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204364475U CN202372325U (en) | 2011-11-08 | 2011-11-08 | Vibration and static and dynamic strain signal wireless data acquisition system for bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204364475U CN202372325U (en) | 2011-11-08 | 2011-11-08 | Vibration and static and dynamic strain signal wireless data acquisition system for bridge |
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| CN2011204364475U Expired - Fee Related CN202372325U (en) | 2011-11-08 | 2011-11-08 | Vibration and static and dynamic strain signal wireless data acquisition system for bridge |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998081A (en) * | 2012-12-17 | 2013-03-27 | 黑龙江省博凯科技开发有限公司 | Method for performing bridge monitoring by using multiple strapdown inertial systems |
| CN103344397A (en) * | 2013-07-05 | 2013-10-09 | 重庆科技学院 | Physical pier parameter identification method and device when waves and top integrated loads are unknown |
| CN104568353A (en) * | 2015-01-09 | 2015-04-29 | 广西大学 | Motor transport vibration testing and analyzing device |
| CN104992546A (en) * | 2015-07-10 | 2015-10-21 | 江西飞尚科技有限公司 | Cloud-intelligent acquisition module of wireless communication based on solar power |
| CN105181127A (en) * | 2015-11-05 | 2015-12-23 | 浙江安侣智能科技有限公司 | Bridge fault detection device |
| CN105277168A (en) * | 2014-06-26 | 2016-01-27 | 上海力构传感器科技有限公司 | Quasi-dynamic strain measurement instrument |
| CN105894784A (en) * | 2014-10-21 | 2016-08-24 | 李江成 | Ethernet based minisize module for conditioning and acquiring dynamic strain |
| CN106248200A (en) * | 2016-07-26 | 2016-12-21 | 大连大学 | A kind of wireless data acquisition system of engineering structure fundamental frequency test |
| CN106596018A (en) * | 2016-12-15 | 2017-04-26 | 中国机械工业集团有限公司 | Large-span building structure multi-point synchronization vibration test method |
| CN106679921A (en) * | 2017-03-21 | 2017-05-17 | 天津城建大学 | Seismic shaking table data collection system based on Zigbee |
| CN107121253A (en) * | 2017-07-07 | 2017-09-01 | 哈尔滨工业大学 | For the bridge structure method that fast vibration is detected in the case of uninterrupted traffic |
-
2011
- 2011-11-08 CN CN2011204364475U patent/CN202372325U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998081A (en) * | 2012-12-17 | 2013-03-27 | 黑龙江省博凯科技开发有限公司 | Method for performing bridge monitoring by using multiple strapdown inertial systems |
| CN102998081B (en) * | 2012-12-17 | 2015-06-03 | 黑龙江省博凯科技开发有限公司 | Method for performing bridge monitoring by using multiple strapdown inertial systems |
| CN103344397A (en) * | 2013-07-05 | 2013-10-09 | 重庆科技学院 | Physical pier parameter identification method and device when waves and top integrated loads are unknown |
| CN103344397B (en) * | 2013-07-05 | 2016-02-03 | 重庆科技学院 | Bridge pier physical parameter method of identification and device when wave and top load are all unknown |
| CN105277168A (en) * | 2014-06-26 | 2016-01-27 | 上海力构传感器科技有限公司 | Quasi-dynamic strain measurement instrument |
| CN105894784A (en) * | 2014-10-21 | 2016-08-24 | 李江成 | Ethernet based minisize module for conditioning and acquiring dynamic strain |
| CN104568353A (en) * | 2015-01-09 | 2015-04-29 | 广西大学 | Motor transport vibration testing and analyzing device |
| CN104992546A (en) * | 2015-07-10 | 2015-10-21 | 江西飞尚科技有限公司 | Cloud-intelligent acquisition module of wireless communication based on solar power |
| CN105181127A (en) * | 2015-11-05 | 2015-12-23 | 浙江安侣智能科技有限公司 | Bridge fault detection device |
| CN106248200A (en) * | 2016-07-26 | 2016-12-21 | 大连大学 | A kind of wireless data acquisition system of engineering structure fundamental frequency test |
| CN106248200B (en) * | 2016-07-26 | 2018-10-12 | 大连大学 | A kind of wireless data acquisition system of engineering structure fundamental frequency test |
| CN106596018A (en) * | 2016-12-15 | 2017-04-26 | 中国机械工业集团有限公司 | Large-span building structure multi-point synchronization vibration test method |
| CN106679921A (en) * | 2017-03-21 | 2017-05-17 | 天津城建大学 | Seismic shaking table data collection system based on Zigbee |
| CN107121253A (en) * | 2017-07-07 | 2017-09-01 | 哈尔滨工业大学 | For the bridge structure method that fast vibration is detected in the case of uninterrupted traffic |
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Granted publication date: 20120808 Termination date: 20181108 |
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