CN204009523U - A kind of bridge remote monitoring system based on ZigBee technology - Google Patents
A kind of bridge remote monitoring system based on ZigBee technology Download PDFInfo
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- CN204009523U CN204009523U CN201420300798.7U CN201420300798U CN204009523U CN 204009523 U CN204009523 U CN 204009523U CN 201420300798 U CN201420300798 U CN 201420300798U CN 204009523 U CN204009523 U CN 204009523U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model relates to a kind of bridge remote monitoring system based on ZigBee technology, it is characterized in that: comprise displacement signal collecting unit, vibration signals collecting unit and load signal collecting unit, above-mentioned each collecting unit is connected with routing node is wireless by Zigbee module respectively, routing node is connected with Zigbee telegon is wireless, Zigbee telegon is connected with main control computer, and main control computer is connected with safety supervision department; In above signal gathering unit, also comprise a programmable digital potentiometer using as adjustable resistance, to realize the rail-to-rail output of described comparer.This kind can be realized the intellectuality of monitoring based on the intelligent bridge health monitor of Zigbee module, and can store data, after many networkings, can realize the wireless remote monitering to bed rearrangement bridge, greatly reduced the workload of wiring; Monitoring node on bridge adopts solar panel power supply, not only convenient but also energy-conservation.
Description
Technical field
The utility model relates to bridge safety supervision technical field, especially relates to a kind of bridge remote monitoring system based on ZigBee technology.
Background technology
High-speed, the high density of modern overhead railway and the highway continuously feature such as operation has proposed stricter requirement to trouble free service, and the vehicle of running at high speed, is therefore had higher requirement to traffic safety much larger than common vehicle to the dynamic action of bridge.Vehicle high-speed by time extruding and vibration to bridge fulcrum produce the distortion of bridge and hang sky, or the bridge deformation that relative displacement between bridge and bridge pier (as ground settlement) causes and hang sky, can affect the stability of Vehicle Driving Cycle, more can endanger bridge security, therefore need bridge and fulcrum thereof to carry out long-term dynamics monitoring, give warning in advance accomplishing, Accident prevention occurs.
Bridge deformation monitoring is mainly according to bridge structure type, designing requirement and purposes and still run phase long term monitoring in monitoring during construction and determine Contents for Monitoring, monitoring accuracy and monitoring method.Traditional distortion and displacement monitoring method can adopt GPS, polar coordinates, accurate span, tracerse survey, forward intersection, vertical frontal line, electric vertical beam, measurement of the level etc.Because the construction of railway, highway bridge is generally away from cities and towns, traditional monitoring method power supply aspect difficulty is very large, add that the high ferro circuit of several hundred kilometers of being continuous needs the monitoring sensor of enormous amount and forms sensor network, therefore at present extra long distance be there is no to successful application case as the monitoring of high-speed rail bridge displacement.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of bridge remote monitoring system based on grating sensor in order to overcome the defect that above-mentioned prior art exists, this kind can be realized the intellectuality of monitoring based on the intelligent bridge health monitor of Zigbee module, and can store data, after many networkings, can realize the wireless remote monitering to bed rearrangement bridge, greatly reduce the workload of wiring; Monitoring node on bridge adopts solar panel power supply, not only convenient but also energy-conservation.
The purpose of this utility model can be achieved through the following technical solutions: a kind of bridge remote monitoring system based on ZigBee technology, it is characterized in that: comprise displacement signal collecting unit, vibration signals collecting unit and load signal collecting unit, above-mentioned each collecting unit is connected with routing node is wireless by Zigbee module respectively, described routing node is connected with Zigbee telegon is wireless, described Zigbee telegon is connected with main control computer, and described main control computer is connected with safety supervision department.
Above-mentioned a kind of bridge remote monitoring system based on ZigBee technology, it is characterized in that: in described displacement signal collecting unit, vibration signals collecting unit and load signal collecting unit, also comprise a programmable digital potentiometer using as adjustable resistance, using the front end circuit of this potentiometer corresponding comparer in described unit, to realize the rail-to-rail output of described comparer; Described programmable digital potentiometer adopts CAT5111 integrated circuit block, and described comparer is selected MAX9021 integrated circuit block.
Above-mentioned a kind of bridge remote monitoring system based on ZigBee technology, it is characterized in that: the displacement transducer in described displacement signal collecting unit adopts QH-800 optical grid line displacement sensor, vibration transducer in described vibration signals collecting unit adopts RP670B low-frequency shock transducer, and the load transducer in described load signal collecting unit adopts Interface1101-2 type sensor.
Above-mentioned a kind of bridge remote monitoring system based on ZigBee technology, it is characterized in that: the signal that described displacement signal collecting unit, vibration signals collecting unit and load signal collecting unit gather, after A/D conversion and microprocessor analysis processing, sends to routing node by Zigbee module and GPRS module by signal wireless.
Above-mentioned a kind of bridge remote monitoring system based on ZigBee technology, is characterized in that: described Zigbee telegon is connected with main control computer by level switch module.
Above-mentioned a kind of bridge remote monitoring system based on ZigBee technology, is characterized in that: described level switch module adopts FT232RL as main control chip.
Above-mentioned a kind of bridge remote monitoring system based on ZigBee technology, is characterized in that: described each signal gathering unit adopts solar panel power supply.
Compared with prior art, the utility model has advantage:
1, effective in order to obtain, the reliable Monitoring Data of the utility model, this monitor adopts the data acquisition module agllutination of the super low-power consumption being made up of PIC microcontroller and forms by ZigBee wireless module the data-carrier store that ultra-low power consumption wireless transport module is made up of super large storer in addition, and these are in order to ensure the long time stability operation of data acquisition, transmitting procedure.
2, ZigBee module adopts IEEE802.15.4 agreement, it is the wireless communication module of a kind of short distance, low-power consumption, be characterized in closely, low complex degree, self-organization, low-power consumption, low data rate, low cost, be relatively applicable to the multi-point monitoring of whole bridge.
3, utilize the ZigBee wireless network of multiple sensors radio node composition, realize automatic collection and the transmission of bridge vibration of beam, displacement, data, this monitoring system has taken into full account the special circumstances of bridge monitoring in the time of design, there is anti-vibration, anti-dust, anti-electromagnetic-radiation interference performance is strong, can not be subject to the electromagnetic interference (EMI) of extraneous electronic equipment and produce abnormal operation, ensure the high reliability of system, can be practically applicable to various severe industrial environments.
4, the monitoring node on bridge adopts solar panel power supply, and because civil power is set up in inconvenience on bridge, and monitoring system power consumption is not very large, thus adopt solar panel power supply, not only convenient but also energy-conservation.
Brief description of the drawings
Fig. 1 bridge remote monitoring system configuration diagram of the present utility model;
Fig. 2 bridge remote monitoring system monitoring node of the present utility model electrical schematic diagram;
Fig. 3 bridge remote monitoring system Zigbee of the present utility model module general principle figure;
Fig. 4 bridge remote monitoring system level shifting circuit of the present utility model figure;
Schematic diagram is arranged in Fig. 5 bridge remote monitoring system monitoring of the present utility model.
Description of symbols:
1, signal gathering unit; 2, vibration signals collecting unit; 3, load signal collecting unit;
4, solar panel; 6, routing node; 7, Zigbee telegon;
8, main control computer; 9, safety supervision department.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
As shown in Figure 1, a kind of bridge remote monitoring system based on ZigBee technology, it is characterized in that: comprise displacement signal collecting unit 1, vibration signals collecting unit 2 and load signal collecting unit 3, above-mentioned each collecting unit is connected with routing node 6 is wireless by Zigbee module respectively, described routing node 6 is connected with Zigbee telegon 7 is wireless, described Zigbee telegon 7 is connected with main control computer 8, and described main control computer 8 is connected with safety supervision department 9.
In the present embodiment, in described displacement signal collecting unit 1, vibration signals collecting unit 2 and load signal collecting unit 3, also comprise a programmable digital potentiometer using as adjustable resistance, using the front end circuit of this potentiometer corresponding comparer in described unit, to realize the rail-to-rail output of described comparer; Described programmable digital potentiometer adopts CAT5111 integrated circuit block, and described comparer is selected MAX9021 integrated circuit block.
In the present embodiment, displacement transducer in described displacement signal collecting unit 1 adopts QH-800 optical grid line displacement sensor, vibration transducer in described vibration signals collecting unit 2 adopts RP670B low-frequency shock transducer, and the load transducer in described load signal collecting unit 3 adopts Interface1101-2 type sensor.
In the present embodiment, the signal that described displacement signal collecting unit 1, vibration signals collecting unit 2 and load signal collecting unit 3 gather, after A/D conversion and microprocessor analysis processing, sends to routing node 6 by Zigbee module and GPRS module by signal wireless.
In the present embodiment, described Zigbee telegon 7 is connected with main control computer 8 by level switch module.Because grid terminal node all adopts Zigbee module CC2430 chip as hardware foundation, its common application circuit as shown in Figure 3, coordinator node and routing node design difference are little, its major function is the interface of connecting wireless network hardware system and host computer, and difference is that terminal node need to add sensor and data converting circuit
In the present embodiment, described level switch module adopts FT232RL as main control chip.This is not match and cause due to the level of CC2430 chip and host computer serial ports level, adopts FT232RL to realize serial ports level conversion here, and completes the serial communication between host computer by USB interface.Two LED lamps of access are pointed out the current input and output that have signal by flicker, and circuit as shown in Figure 4.
As shown in Figure 5, in the present embodiment, described each signal gathering unit adopts solar panel 4 to power.Because civil power is set up in inconvenience on bridge, and monitoring system power consumption is not very large, thus adopt solar panel 4 to power, not only convenient but also energy-conservation.
Below in conjunction with Fig. 2 and Fig. 3, provide the explanation to specific embodiment: as shown in the figure, microcontroller stc12c5a60s2 is two serial ports, the single-chip microcomputer of single clock/machine cycle, and slewing rate can reach 250K/S.Data memory module is made up of USB interface module and data-carrier store, and CH375 has 8 bit data bus and reading and writing, sheet select control line and interrupt output function.Microcontroller carries out exchanges data by USB interface module and data-carrier store.Data-carrier store gets off the data real time record such as displacement, vibration, load, for later analysis.MCU can freely read and write the data in CH375 memory device, also can freely define its data structure.
Transceiver module is by Zigbee module and GPRS module composition.In the time that multiple bridge health monitoring instrument carry out holistic health monitoring to bridge, the monitor using as telegon is connected to Zigbee module and GPRS module, and the monitor using as router is only connected to Zigbee module, need not connect GPRS module.ZigBee wireless network node based on CC2430 is as Fig. 3.This module mainly comprises 2.0 V-3.6 V electric source filter circuits, chip crystal oscillating circuit, balun circuit and reset circuit.Chip local oscillation signal both can be provided by external active crystal, also can be provided by internal circuit, was provided here by internal circuit, needed additional crystal oscillator and 2 load capacitances, and the size of electric capacity depends on the parameter such as frequency and input capacitive reactance of crystal.R1 and R2 are biasing resistor, and resistance R 1 is mainly used to provide suitable working current for the crystal oscillator of 32 MHz.Form the crystal oscillating circuit of 1 32 MHz with the quartz resonator X1 of 1 32 MHz and 2 capacitor C 1 and C2.Form the crystal oscillating circuit of 1 32.768 kHz with the quartz resonator X2 of 1 32.768 kHz and 2 capacitor C 5 and C6.The transmitting-receiving of CC2430 radiofrequency signal adopts differential mode transmission, and its best differential load is 115+j180 Ω, and impedance matching circuit should be adjusted according to this numerical value.When specific implementation, can adopt 50 Ω monopole antennas, because the difference prevention at radio-frequency port of CC2430 has two ports, and antenna is single port, therefore needs to adopt balun circuit to be used as balance/non-equilibrium change-over circuit, completes the conversion of dual-port to single port.The monitor using as telegon is received the data of the monitor collection using as router and is sent to host computer by GPRS by wireless network.Bridge health parameter is divided into health here, inferior health, three ranks of morbid state, the voltage swing of data potentiometer is corresponding to the electric signal voltage of bridge health parameter, MUC at ordinary times, Zigee module, GPRS module is in dormant state, in order to economize on electricity, only has sensor and comparer work, the electric signal of sensor collection reaches comparer, compare with the voltage of data potentiometer, if be less than the voltage of data potentiometer, think that bridge health in order, need not trigger MCU, if be greater than the voltage of data potentiometer, think that bridge health has problem, comparer triggers MCU and carries out data collection and analysis, and be that data are stored collection.If bridge health parameter reaches ill rank, MCU starts Zigbee wireless module, data are sent to the monitor using as telegon, and the monitor using as telegon starts GPRS module, and alert data is sent to monitor staff by main control computer.
In sum, this kind of intelligent bridge health monitor is the health status of being measured the environmental parameter of bridge and the structural parameters of self and monitored bridge by high-precision sensor, by the parameter gathering is analyzed, can be whether reasonable for detection of Bridge Design, detect bridge and whether have healthy hidden danger, provide significant data support for carrying out the scientific research of bridge aspect.Effective in order to obtain, reliable Monitoring Data, this monitor adopts the data acquisition module agllutination of the super low-power consumption being made up of PIC microcontroller and forms by ZigBee wireless module the data-carrier store that ultra-low power consumption wireless transport module is made up of super large storer in addition, and these are in order to ensure the long time stability operation of data acquisition, transmitting procedure.ZigBee module adopts IEEE802.15.4 agreement, and it is the wireless communication module of a kind of short distance, low-power consumption, is characterized in closely, low complex degree, self-organization, low-power consumption, low data rate, low cost.Relatively be applicable to the multi-point monitoring of whole bridge.Utilize the ZigBee wireless network of multiple sensors radio node composition, realize automatic collection and the transmission of bridge vibration of beam, displacement, data, this monitor has taken into full account the special circumstances of bridge monitoring in the time of design, there is anti-vibration, anti-dust, anti-electromagnetic-radiation interference performance is strong, can not be subject to the electromagnetic interference (EMI) of extraneous electronic equipment and produce abnormal operation, ensure the high reliability of system, can be practically applicable to various severe industrial environments.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection domain of the present utility model.
Claims (7)
1. the bridge remote monitoring system based on ZigBee technology, it is characterized in that: comprise displacement signal collecting unit (1), vibration signals collecting unit (2) and load signal collecting unit (3), above-mentioned each collecting unit is respectively by Zigbee module and wireless being connected of routing node (6), described routing node (6) and wireless being connected of Zigbee telegon (7), described Zigbee telegon (7) is connected with main control computer (8), and described main control computer (8) is connected with safety supervision department (9).
2. a kind of bridge remote monitoring system based on ZigBee technology according to claim 1, it is characterized in that: in described displacement signal collecting unit (1), vibration signals collecting unit (2) and load signal collecting unit (3), also comprise a programmable digital potentiometer using as adjustable resistance, using the front end circuit of this potentiometer corresponding comparer in described unit, to realize the rail-to-rail output of described comparer; Described programmable digital potentiometer adopts CAT5111 integrated circuit block, and described comparer is selected MAX9021 integrated circuit block.
3. a kind of bridge remote monitoring system based on ZigBee technology according to claim 1, it is characterized in that: the displacement transducer in described displacement signal collecting unit (1) adopts QH-800 optical grid line displacement sensor, vibration transducer in described vibration signals collecting unit (2) adopts RP670B low-frequency shock transducer, and the load transducer in described load signal collecting unit (3) adopts Interface1101-2 type sensor.
4. a kind of bridge remote monitoring system based on ZigBee technology according to claim 1 and 2, it is characterized in that: the signal that described displacement signal collecting unit (1), vibration signals collecting unit (2) and load signal collecting unit (3) gather, after A/D conversion and microprocessor analysis processing, sends to routing node (6) by Zigbee module and GPRS module by signal wireless.
5. a kind of bridge remote monitoring system based on ZigBee technology according to claim 1, is characterized in that: described Zigbee telegon (7) is connected with main control computer (8) by level switch module.
6. a kind of bridge remote monitoring system based on ZigBee technology according to claim 5, is characterized in that: described level switch module adopts FT232RL as main control chip.
7. a kind of bridge remote monitoring system based on ZigBee technology according to claim 1, is characterized in that: described each signal gathering unit adopts solar panel (4) power supply.
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| CN201420300798.7U CN204009523U (en) | 2014-06-09 | 2014-06-09 | A kind of bridge remote monitoring system based on ZigBee technology |
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| CN201420300798.7U CN204009523U (en) | 2014-06-09 | 2014-06-09 | A kind of bridge remote monitoring system based on ZigBee technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679921A (en) * | 2017-03-21 | 2017-05-17 | 天津城建大学 | Seismic shaking table data collection system based on Zigbee |
| CN107764495A (en) * | 2017-11-14 | 2018-03-06 | 天津城建大学 | Building dynamic characteristics test system based on Zigbee radio communications |
| CN107957292A (en) * | 2017-10-19 | 2018-04-24 | 华东交通大学 | A kind of solar energy radio vibrates bridge on-line monitoring method |
| CN110751818A (en) * | 2019-10-12 | 2020-02-04 | 湖南科技大学 | Distributed bridge real-time monitoring system based on LORA wireless communication |
-
2014
- 2014-06-09 CN CN201420300798.7U patent/CN204009523U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679921A (en) * | 2017-03-21 | 2017-05-17 | 天津城建大学 | Seismic shaking table data collection system based on Zigbee |
| CN107957292A (en) * | 2017-10-19 | 2018-04-24 | 华东交通大学 | A kind of solar energy radio vibrates bridge on-line monitoring method |
| CN107764495A (en) * | 2017-11-14 | 2018-03-06 | 天津城建大学 | Building dynamic characteristics test system based on Zigbee radio communications |
| CN110751818A (en) * | 2019-10-12 | 2020-02-04 | 湖南科技大学 | Distributed bridge real-time monitoring system based on LORA wireless communication |
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| C14 | Grant of patent or utility model | ||
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| 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: 20141210 Termination date: 20170609 |