CN202974336U - Portable bridge-health monitoring system - Google Patents
Portable bridge-health monitoring system Download PDFInfo
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- CN202974336U CN202974336U CN 201220670553 CN201220670553U CN202974336U CN 202974336 U CN202974336 U CN 202974336U CN 201220670553 CN201220670553 CN 201220670553 CN 201220670553 U CN201220670553 U CN 201220670553U CN 202974336 U CN202974336 U CN 202974336U
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- data acquisition
- acquisition module
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Abstract
A portable bridge-health monitoring system comprises a USB communication line, a power supply controller, RS-485 expansion lines, wherein the USB communication line is used for connecting USB interfaces of a main computer and the power supply controller, the RS-485 expansion line is used for connecting a communication output socket of the power supply controller and a communication input socket of a first data collection module. A communication output socket of the first data collection module is connected with a communication input socket of a second data collection module by the RS-485 expansion line. A communication output socket of the second data collection module is connected with a communication input socket of a third data collection module by the RS-485 expansion line. According to the monitoring system provided by the utility model, by means of relatively small cost, people can rapidly, timely and accurately understand bridge operation conditions, rapid detection and evaluation of bridge states are realized, the system plays an active impelling effect on building saving-type highway-bridge maintenance systems and generates great society and economic benefits.
Description
Technical field
The utility model relates to the bridge monitoring field, especially relates to the portable bridge health monitoring system that a kind of distributed USB of utilization and RS-485 mode are carried out communication.
Background technology
Bridge is that the land communications such as railway, highway and water conservancy construction etc. are crossed over the obstacles such as river, mountain valley, make it to be extended important connecting link, in transportation network, bridge structure plays a part hinge, and the safe handling of bridge structure makes whole urban traffic network keep one of key link of normal operation undoubtedly.Since 20th century, established the continuous progress of theoretical and operating technique along with bridge, bridge span constantly has new breakthrough, and version is also increasingly sophisticated.But in the construction operation process of bridge, on the one hand, the place of making us being satisfied with is not arranged still due to construction quality, make them in error and the congenital deficiency of some constructions; On the other hand, during existing bridge operation, because frequent carrying is even super, and the infringement of the human factor such as traffic hazard, add the impact of the factor of natural environment such as earthquake, flood, hurricane, make bridge damnification and local failure.Along with the growth of service time, the damage location of bridge and in jured kind can come many, and its degree also can be more and more serious.Up to now, the bridge security accident that occurs both at home and abroad is not rarely seen.
If can monitor the health status of bridge, the bridge state science of making is passed judgment on accurately, just can in time find the potential safety hazard that exists, in time safeguard or reinforce, use safety and the permanance of bridge had so both been guaranteed, can distinguish the order of importance and emergency again, optimize allocation of resources, accomplish to shoot the arrow at the target.
Increasingly sophisticated along with bridge structure, traditional manual detection method has not caught up with the demand of bridge development because its hysteresis quality, efficient are low, does not meet the rule of economic transactions yet.Adopt the online health monitoring systems fund of installing on large bridge to expend too large, often unrealistic; If can research and develop a cover system, just can understand timely and accurately fast the operation situation of bridge with less cost, realize bridge state fast detecting and evaluation, it will have prograding energetically to building economizing type highway bridge maintenance system so, and produces great society and economic benefit.
Summary of the invention
The purpose of this utility model is to provide a kind of portable bridge health monitoring system, just can understand fast, in time, exactly the operation situation of bridge with less cost, realize bridge state fast detecting and evaluation, to building economizing type highway bridge maintenance system, prograding energetically will be arranged, and produce great society and economic benefit.
the utility model is achieved in that portable bridge health monitoring system, comprise usb communication line, power-supply controller of electric, RS-485 expands line, it is characterized in that: usb communication line is connected principal computer with the USB interface of power-supply controller of electric, RS-485 expansion line is connected the communication accessory power outlet of power-supply controller of electric with the communication input socket of first data acquisition module, the communication accessory power outlet of first data acquisition module is expanded line with the communication input socket of second data acquisition module by RS-485 and is connected, the communication accessory power outlet of second data acquisition module is expanded line with the communication input socket of the 3rd data acquisition module by RS-485 and is connected.
data acquisition module described in the utility model, comprise controlled for bridge voltage, programmable amplifier, single-chip microcomputer, it is characterized in that: controlled for bridge voltage, acceleration transducer, programmable amplifier, analog filter, the DSP data are processed, 16 analog-digital converters, the RS-485 communication module, computing machine is sequentially connected, subtracter, 16 bit digital analog converters are sequentially connected, simultaneously in parallel with comparer, controlled for bridge voltage, programmable amplifier, 16 bit digital analog converters, comparer, 16 analog-to-digital converters, the DSP data are processed, RS-485 communication module order is in parallel with single-chip microcomputer, described computer installation has the signal testing analysis software.
The utility model just can be understood the operation situation of bridge fast, in time, exactly with less cost, realize bridge state fast detecting and evaluation, to building economizing type highway bridge maintenance system, prograding energetically will be arranged, and produce great society and economic benefit.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of data acquisition module in the utility model.
In figure 1, principal computer, 2, usb communication line, 3, power-supply controller of electric, 4, RS-485 expansion line, 5, data acquisition module, 6, controlled for bridge voltage, 7, sensor, 8, programmable amplifier, 9, analog filter, 10, subtracter, 11,16 bit digital analog converters, 12, comparer, 13, single-chip microcomputer, 14,16 analog-digital converters, 15, the DSP data process, 16, RS-485 communication module, 17, computing machine.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
with reference to accompanying drawing, portable bridge health monitoring system, comprise usb communication line 2, power-supply controller of electric 3, RS-485 expands line 4, it is characterized in that: usb communication line 2 is connected the USB interface of principal computer 1 with power-supply controller of electric 3, RS-485 expansion line 4 is connected the communication accessory power outlet of power-supply controller of electric 3 with the communication input socket of first data acquisition module 5, the communication accessory power outlet of first data acquisition module 5 is expanded line 4 with the communication input socket of second data acquisition module 5 by RS-485 and is connected, the communication accessory power outlet of second data acquisition module 5 is expanded line 4 with the communication input socket of the 3rd data acquisition module 5 by RS-485 and is connected.described data acquisition module 10, comprise controlled for bridge voltage 6, programmable amplifier 8, single-chip microcomputer 8, it is characterized in that: controlled for bridge voltage 6, acceleration transducer 7, programmable amplifier 8, analog filter 9, the DSP data process 10, 16 analog-digital converters 11, RS-485 communication module 16, computing machine 17 order series connection, subtracter 5, 16 bit digital analog converter 11 order series connection, simultaneously in parallel with comparer 12, controlled for bridge voltage 6, programmable amplifier 8, 16 bit digital analog converters 11, comparer 12, 16 analog-to-digital converters 14, the DSP data process 15, RS-485 communication module 16 orders are in parallel with single-chip microcomputer 13, described computing machine 17 is provided with the signal testing analysis software.During concrete enforcement, system consists of for simplification, be convenient to system management and maintenance, with static stress, off-position move, the static characteristics such as temperature, and many kinds of parameters collection and the initial analysis of the dynamic perfromances such as acceleration, moving displacement, dynamic strain are integrated in a large system, take test section, substation as the unit, adopt modular combination, form data acquisition module, data acquisition module involving vibrations module, dynamic strain, moving displacement module, static strain, off-position move, thermal module; Wherein for acceleration transducer, the unidirectional acceleration transducer of three common directions is integrated into single three-dimensional acceleration transducer.The utility model is centralized control and power supply, namely a power supply communication bus cable is connected in series each section, each acquisition module, each module test signals is carried out the digitizing real-time Transmission through the synthetic bus transfer cable of hyperchannel after data acquisition, realizes the long distance High-speed interrupted transmission of collection in worksite data.The field module arrangement is taked data acquisition module to be placed in and respectively tested section/substation, and is nearer apart from each measuring point, makes the feeble signal transmission range of sensor output shorter, reduce disturbance and signal transmission line.Data acquisition module, main control computer are controlled collection, pre-service and the storage that on-the-spot each vasculum is completed various quiet, the dynamic response signals of bridge, vibration, displacement and ess-strain situation that can the real-time monitored bridge; Data acquisition module, main control computer are arranged in an end, and the acquisition system power supply can be considered battery pack or vehicle power power supply mode.Vibration module in data acquisition module: module 4 passages, module with patterns such as single channel (horizontal or vertical), 2 passages (vertical, horizontal cross), 3 passages (vertically, horizontal cross and level are vertical), can speed threshold and acceleration shelves be set by function software, with the structure of applicable different scales or the measuring point of different qualities; Dynamic strain, moving displacement module: module 4 passages, the inner WAGO pressure line terminal that adopts is by outside waterproof plug access.Waterproof plug is concentrated and is inputted the strain bridge circuit output signal that is preset on the bridge measuring point, is convenient to regularly arrive the collection in worksite signal, saves the trouble of each wiring; Static strain, off-position move, thermal module: module 8 passages, inside are also to adopt the WAGO pressure line terminal, by outside waterproof plug access.Each acquisition module adopts the adminidtrative signal-processing system design, and each channel setting independence amplifier strengthens the system rejection to disturbance ability; System and computing machine adopt usb mode, and the communication modes between data acquisition module is RS-485 expansion line, and communication length is unrestricted.During monitoring, be connected with the communication input socket of collector with the communication accessory power outlet of RS-485 expansion line with power-supply controller of electric, be connected with the communication input socket of next data acquisition module with the communication accessory power outlet of RS-485 expansion line with data acquisition module again, the like.Then with usb communication line, principal computer is connected with the USB interface of power-supply controller of electric, the controller power source line that plugs at last, opening power controller power source switch just can begin to carry out sampling operation.At first the signal testing analysis software of installing in remote computer, give an order to single-chip microcomputer by communication module, Single-chip Controlling is controlled for bridge voltage afterwards, output for bridge voltage to acceleration transducer or foil gauge, for acceleration transducer or foil gauge provide operating voltage.Meanwhile, signal testing analysis software in remote computer sends instruction to single-chip microcomputer by the RS-485 communication module, single-chip microcomputer sends instruction for 16 analog-digital converters again, make 16 analog-digital converter output aanalogvoltages enter subtracter, carry out computing, then after comparing through comparer, send to single-chip microcomputer and cease and desist order, built-in voltage in circuit is removed, avoided having influence on measuring-signal.Acceleration transducer or foil gauge output signal to the program control signal amplifier, signal enters analog filter through after amplifying, the elimination irrelevant signal, with useful signal again through 16 analog-digital converters, convert digital signal to, enter afterwards the DSP data and process, convert signal to signal that the USB module can be identified by single-chip microcomputer at last, reach computing machine, be presented on the signal testing analysis software.
Claims (2)
1. portable bridge health monitoring system, comprise usb communication line (2), power-supply controller of electric (3), RS-485 expands line (4), it is characterized in that: usb communication line (2) is connected the USB interface of principal computer (1) with power-supply controller of electric (3), RS-485 expansion line (4) is connected the communication accessory power outlet of power-supply controller of electric (3) with the communication input socket of first data acquisition module (5), the communication accessory power outlet of first data acquisition module (5) is expanded line (4) with the communication input socket of second data acquisition module (5) by RS-485 and is connected, the communication accessory power outlet of second data acquisition module (5) is expanded line (4) with the communication input socket of the 3rd data acquisition module (5) by RS-485 and is connected.
2. portable bridge health monitoring system according to claim 1, described data acquisition module (10), comprise controlled for bridge voltage (6), programmable amplifier (8), single-chip microcomputer (8), it is characterized in that: controlled for bridge voltage (6), acceleration transducer (7), programmable amplifier (8), analog filter (9), the DSP data are processed (10), 16 analog-digital converters (11), RS-485 communication module (16), the series connection of computing machine (17) order, subtracter (5), 16 bit digital analog converter (11) order series connection, simultaneously in parallel with comparer (12), controlled for bridge voltage (6), programmable amplifier (8), 16 bit digital analog converters (11), comparer (12), 16 analog-to-digital converters (14), the DSP data are processed (15), RS-485 communication module (16) order is in parallel with single-chip microcomputer (13), described computing machine (17) is provided with the signal testing analysis software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670553 CN202974336U (en) | 2012-12-08 | 2012-12-08 | Portable bridge-health monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670553 CN202974336U (en) | 2012-12-08 | 2012-12-08 | Portable bridge-health monitoring system |
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| Publication Number | Publication Date |
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| CN202974336U true CN202974336U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220670553 Expired - Fee Related CN202974336U (en) | 2012-12-08 | 2012-12-08 | Portable bridge-health monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948723A (en) * | 2017-11-10 | 2018-04-20 | 中国汽车工程研究院股份有限公司 | The vehicle carried data collecting device and its collecting method of expansible port |
| CN111682736A (en) * | 2019-03-05 | 2020-09-18 | 深圳长城开发科技股份有限公司 | Data acquisition terminal power supply sharing equipment and overload protection method thereof |
-
2012
- 2012-12-08 CN CN 201220670553 patent/CN202974336U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948723A (en) * | 2017-11-10 | 2018-04-20 | 中国汽车工程研究院股份有限公司 | The vehicle carried data collecting device and its collecting method of expansible port |
| CN107948723B (en) * | 2017-11-10 | 2020-04-21 | 中国汽车工程研究院股份有限公司 | Vehicle-mounted data acquisition device with expandable port and data acquisition method thereof |
| CN111682736A (en) * | 2019-03-05 | 2020-09-18 | 深圳长城开发科技股份有限公司 | Data acquisition terminal power supply sharing equipment and overload protection method thereof |
| CN111682736B (en) * | 2019-03-05 | 2021-08-27 | 深圳长城开发科技股份有限公司 | Data acquisition terminal power supply sharing equipment and overload protection method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20181208 |