CN201429484Y - Cable force wireless measuring device for guy cable of cable-stayed bridge - Google Patents

Cable force wireless measuring device for guy cable of cable-stayed bridge Download PDF

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Publication number
CN201429484Y
CN201429484Y CN 200920305168 CN200920305168U CN201429484Y CN 201429484 Y CN201429484 Y CN 201429484Y CN 200920305168 CN200920305168 CN 200920305168 CN 200920305168 U CN200920305168 U CN 200920305168U CN 201429484 Y CN201429484 Y CN 201429484Y
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China
Prior art keywords
cable
module
wireless
cable force
base station
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Expired - Fee Related
Application number
CN 200920305168
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Chinese (zh)
Inventor
于徐红
刘志杰
陈彦
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Guizhou Education University
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Guizhou Education University
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Priority to CN 200920305168 priority Critical patent/CN201429484Y/en
Application granted granted Critical
Publication of CN201429484Y publication Critical patent/CN201429484Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a cable force wireless measuring device for a guy cable of a cable-stayed bridge, which comprises a cable force wireless measurement node (1) and a wireless base station (2), wherein a vibration acceleration sensor (3) of the cable force wireless measurement node (1) is connected with a sensor drive and signal modulating module (5), the sensor drive and signal modulating module (5) is connected with an A/D and microprocessing module (6) which is connected with a wireless transmitting-receiving module (7), the wireless transmitting-receiving module (7) is connected with the wireless base station (2) through a wireless communication channel, and the wireless base station (2) is connected with a computer (8). The cable force wireless measuring device adopts a wireless node to measure the cable force of a stayed cable, can distribute a plurality of cable force measuring nodes under the condition without wire arrangement, measures the cable force of a plurality of guy cables, overcomes shortcomings in a current cable force measuring wire system, and has better application prospect in monitoring and maintaining bridges.

Description

A kind of cable-stayed bridge draw the cable force wireless measurement device
Technical field
What the utility model related to a kind of measurement mechanism that draws cable force to carry out online detection, particularly a kind of cable-stayed bridge to cable-stayed bridge draws the cable force wireless measurement device.
Background technology
In the drag-line cable force measurement of suspension cable, normally adopt the wired measuring device to measure.This wired measuring device is installed vibration acceleration sensor on measured position, the signal condition instrument that the signal wire through growing distance causes in the Control Room carries out signal Processing.The workload of its wiring is big, when line failure, influences quality of signals.And when real-time monitoring scene was unmanned, damage that wired circuit is easily stolen or circuit meets accident caused the monitoring failure.
The utility model content
What technical problem to be solved in the utility model was to provide a kind of cable-stayed bridge draws the cable force wireless measurement device, and this device can be sent to the vibration acceleration signal of drag-line and handle the base station through wireless channel, need not wiring and signal and transmit stable, reliable.
For solving the problems of the technologies described above the technical solution of the utility model: a kind of cable-stayed bridge draw the cable force wireless measurement device.Comprise Suo Li wireless measurement node and wireless base station, described Suo Li wireless measurement node is made of vibration acceleration sensor, power management module, sensor drive and signal condition module, A/D and micro treatment module and radio receiving transmitting module; Vibration acceleration sensor connects sensor drive and signal condition module, and sensor drive and signal condition module connect A/D and micro treatment module, and A/D and micro treatment module connect radio receiving transmitting module, and radio receiving transmitting module connects the wireless base station by wireless channel; The wireless base station connects computing machine.
Drawing in the cable force wireless measurement device of above-mentioned cable-stayed bridge, described vibration acceleration sensor, power management module, sensor drive and signal condition module, A/D and micro treatment module and radio receiving transmitting module are packaged together.
Drawing in the cable force wireless measurement device of aforesaid cable-stayed bridge, what described vibration acceleration sensor adopted is the CA YD 189 type high sensitivity acceleration transducers of built-in ICP, what power management module adopted is LT1108 chip and Switching Power Supply, and what A/D and micro treatment module adopted is ATmega1281 low-power consumption microprocessor; What radio receiving transmitting module adopted is the wireless transmission chip of CC2410.
The beneficial effects of the utility model: compared with prior art, the utility model has adopted radio node to measure stay cable force, the vibration acceleration signal of drag-line is sent to through wireless channel and handles the base station, can under situation about not connecting up, arrange a plurality of cable force measurement nodes, measure the Suo Li of many drag-lines, remedied the deficiency of current cable force measurement wired system, need not wiring, can save manpower and signal and transmit stable, reliable.Each Suo Li wireless measurement node can be formed the on-site wireless transmission network, has strengthened the dirigibility of measuring point layout and the robustness of whole network, has application promise in clinical practice aspect bridge monitoring and the maintenance.
Description of drawings
Fig. 1 is principle of compositionality figure of the present utility model;
Fig. 2 is a Suo Li wireless measurement node networking synoptic diagram of the present utility model.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment
Embodiment 1.As shown in Figure 1, comprise Suo Li wireless measurement node 1 and wireless base station 2, Suo Li wireless measurement node 1 is made of vibration acceleration sensor 3, power management module 4, sensor drive and signal condition module 5, A/D and micro treatment module 6 and radio receiving transmitting module 7; Vibration acceleration sensor 3 connects sensor drive and signal condition module 5 through concentric cable, sensor drive and signal condition module 5 connect A/D and micro treatment module 6, A/D and micro treatment module 6 connect radio receiving transmitting module 7, and radio receiving transmitting module 7 connects wireless base station 2 by wireless channel; Wireless base station 2 connects computing machine 8.
Vibration acceleration sensor 3, power management module 4, sensor drive and signal condition module 5, A/D and micro treatment module 6 and radio receiving transmitting module 7 are packaged together, formed Suo Li wireless measurement node 1 jointly, when carrying out cable force measurement, be installed on the tested suspension cable.Vibration acceleration sensor 3 is used for the vibration of sensing suspension cable and gathers the accekeration of inhaul cable vibration, and what adopt in the present embodiment is the CA-YD-189 type high sensitivity acceleration transducer of built-in ICP.Power management module 4 adopts LT1108 chip and Switching Power Supply to form, and is responsible for the electric power supply and the control of each module, and when system did not carry out vibration acquisition, each module entered dormant state, with conservation of power.Sensor drive and signal condition module 5 provide the supply voltage or the electric current of appropriate drive sensor for vibration acceleration sensor 3; Comprise sensor drive module and signal condition module two parts.In the present embodiment, the sensor drive module provides the constant current source of 9mA for vibration acceleration sensor 3.The signal condition module comprises low-pass filtering, signal amplifying function, and in the present embodiment, the signal condition module adopts LM134 three end adjustable constant-flow sources, provides vibration acceleration sensor 3 required constant current source.Signal adopts low-power consumption instrumentation amplifier AD620 signal amplification circuit, and low-pass filter circuit adopts MAX293 low noise filtering circuit, in case aliasing phenomenon takes place in the A/D sampling.A/D and micro treatment module 6 adopt ATmega1281 low-power consumption microprocessor, and it is responsible for the control of startup, sampling, data transmission, power supply stop and start, wireless networking and the various peripheral hardwares of whole Suo Li wireless measurement node.A/D adopts 16 precision, store sample scheduling and transmission software among the Flash of microprocessor.Radio receiving transmitting module 7 adopts the wireless transmission chip of CC2410, and the networking and the data that adopt the ZigBee agreement to carry out each Suo Li wireless measurement node transmit, route.Wireless base station 2 can receive the vibration acceleration data of all Suo Li wireless measurement nodes 1 and each Suo Li wireless measurement node 1 is transmitted control command.
During measurement, each Suo Li wireless measurement node 1 adopts vibration acceleration sensor 3 to gather the accekeration of inhaul cable vibration, data are sent in sensor drive and the signal condition module 5 through concentric cable, through amplifying, the signal of exporting after the low-pass filtering carries out the A/D conversion in A/D and micro treatment module 6, microprocessor reads signal with certain sample frequency, and vibration acceleration signal sent to wireless base station 2 by radio receiving transmitting module 7, the data that wireless base station 2 each Suo Li wireless measurement node 1 of reception are sent also are sent to computing machine 8, calculate the Suo Li of drag-line by computing machine 8.
As shown in Figure 2, adopt a plurality of Suo Li wireless measurement nodes 1 can survey the Suo Li of multiple skew cables, these Suo Li wireless measurement nodes 1 can be formed the on-site wireless transmission network and carry out data transmission, and all nodes can form two class nodes, i.e. terminal node and via node.Terminal node is the node that only carries out data acquisition and transmission, and via node not only carries out the collection and the transmission of data, but also can receive the data of other node and be forwarded to the base station or other via node, this just solved surpass radio node one jump set defeated apart from the time data transmission problems.
Embodiment of the present utility model is not limited to the foregoing description, all belongs within the protection domain of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.

Claims (3)

1. a cable-stayed bridge draws the cable force wireless measurement device, comprise Suo Li wireless measurement node (1) and wireless base station (2), it is characterized in that: described Suo Li wireless measurement node (1) is made of vibration acceleration sensor (3), power management module (4), sensor drive and signal condition module (5), A/D and micro treatment module (6) and radio receiving transmitting module (7); Vibration acceleration sensor (3) connects sensor drive and signal condition module (5), sensor drive and signal condition module (5) connect A/D and micro treatment module (6), A/D and micro treatment module (6) connect radio receiving transmitting module (7), and radio receiving transmitting module (7) connects wireless base station (2) by wireless channel; Wireless base station (2) connects computing machine (8).
Cable-stayed bridge according to claim 1 draw the cable force wireless measurement device, it is characterized in that: described vibration acceleration sensor (3), power management module (4), sensor drive and signal condition module (5), A/D and micro treatment module (6) and radio receiving transmitting module (7) are packaged together.
3. cable-stayed bridge according to claim 1 and 2 draws the cable force wireless measurement device, it is characterized in that: what described vibration acceleration sensor (3) adopted is the CA-YD-189 type high sensitivity acceleration transducer of built-in ICP, what power management module (4) adopted is LT1108 chip and Switching Power Supply, and what A/D and micro treatment module (6) adopted is ATmega1281 low-power consumption microprocessor; What radio receiving transmitting module (7) adopted is the wireless transmission chip of CC2410.
CN 200920305168 2009-06-26 2009-06-26 Cable force wireless measuring device for guy cable of cable-stayed bridge Expired - Fee Related CN201429484Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200920305168 CN201429484Y (en) 2009-06-26 2009-06-26 Cable force wireless measuring device for guy cable of cable-stayed bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200920305168 CN201429484Y (en) 2009-06-26 2009-06-26 Cable force wireless measuring device for guy cable of cable-stayed bridge

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839781A (en) * 2010-05-27 2010-09-22 南京工业大学 Method and device for quickly identifying state of main cables of suspension bridge
CN102980706A (en) * 2012-12-07 2013-03-20 中国海洋石油总公司 Wireless monitoring and early warning system of cable tension and compass signals in offshore oil extraction operation
CN103728014A (en) * 2014-01-14 2014-04-16 长沙理工大学 Acceleration sensor based bridge cable vibration frequency detection method and device
CN104316249A (en) * 2014-11-12 2015-01-28 招商局重庆交通科研设计院有限公司 Wireless automatic testing and recognition system for bridge bearing short strut cable tension
CN106959183A (en) * 2017-03-23 2017-07-18 武汉理工大学 A kind of cable stress detection device
CN111912557A (en) * 2020-08-31 2020-11-10 五邑大学 Cable-stayed bridge cable force real-time monitoring device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839781A (en) * 2010-05-27 2010-09-22 南京工业大学 Method and device for quickly identifying state of main cables of suspension bridge
CN102980706A (en) * 2012-12-07 2013-03-20 中国海洋石油总公司 Wireless monitoring and early warning system of cable tension and compass signals in offshore oil extraction operation
CN102980706B (en) * 2012-12-07 2015-03-25 中国海洋石油总公司 Wireless monitoring and early warning system of cable tension and compass signals in offshore oil extraction operation
CN103728014A (en) * 2014-01-14 2014-04-16 长沙理工大学 Acceleration sensor based bridge cable vibration frequency detection method and device
CN104316249A (en) * 2014-11-12 2015-01-28 招商局重庆交通科研设计院有限公司 Wireless automatic testing and recognition system for bridge bearing short strut cable tension
CN106959183A (en) * 2017-03-23 2017-07-18 武汉理工大学 A kind of cable stress detection device
CN111912557A (en) * 2020-08-31 2020-11-10 五邑大学 Cable-stayed bridge cable force real-time monitoring device

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100324

Termination date: 20120626