CN104240470A - Wireless joints displacement measuring system for metro shield tunnel - Google Patents
Wireless joints displacement measuring system for metro shield tunnel Download PDFInfo
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- CN104240470A CN104240470A CN201310231699.8A CN201310231699A CN104240470A CN 104240470 A CN104240470 A CN 104240470A CN 201310231699 A CN201310231699 A CN 201310231699A CN 104240470 A CN104240470 A CN 104240470A
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Abstract
The invention relates to a wireless joints displacement measuring system for a metro shield tunnel. The system comprises a displacement sensor module, a temperature compensation module, a microprocessor module, a wireless transceiver module and a host computer. Through the displacement sensor module, width variation of tunnel joints can be detected at real time; and through filtering, anti-interference processing and temperature compensation, metro vibration noise and temperature influence are eliminated so as to achieve high-precision measurement requirements. In addition, by the use of a wireless network for data transmission, wiring requirements are simplified. Thus, the system is more suitable for the complex environment of an underground tunnel, and accurate, effective and real-time monitoring of tunnel structure changes is realized.
Description
Technical field
The present invention relates to a kind of tunnel survey system, especially relate to a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels.
Background technology
Along with carrying forward vigorously of China's urbanization, subway is large as a kind of freight volume, speed is fast, safety, on schedule, the mode of transportation of protection of the environment, economize energy, be rapidly developed in China, urban traffic conditions is had obvious improvement.While city underground Large scale construction, the structural health of operation tactics is also more and more subject to the extensive concern of society.Due to constructional deficiency, complex geological condition, long duration load, the frequently reason such as train vibration, material degradation, operation tactics has presented more serious disease incidence.Thus, the structural health monitoring for Shield-bored tunnels is especially aobvious important.
Shield-bored tunnels is a kind of overlength linear structure, and its monitoring kind is many, distribution dispersion, and installing space is narrow and small, and these are that the monitoring of subway tunnel is had higher requirement.Wireless sensor network has the features such as flexible layout, structure is variable, vitality is stronger, has a good application prospect in subway tunnel.It is the important disease that produces with tunnel lateral direction convergence and longitudinal non-uniform settling that segment joint opens, and detects based on manual detection at present to it, lack a kind of in real time, effectively, reliable method.The monitoring of joint gap variable quantity is incorporated radio sensing network, is the essential step realizing Shield-bored tunnels structure wisdom.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels is provided.
Object of the present invention can be achieved through the following technical solutions:
Be applicable to a wireless seam displacement measurement system for Shield-bored tunnels, comprise:
Displacement sensor module, is arranged at the seam crossing of duct pieces of shield tunnel, detects the change in displacement of joint gap;
Temperature compensation module, is arranged in shield tunnel, testing environment temperature;
Microprocessor module, receives the temperature information of displacement information from displacement sensor module and temperature compensation module, and packing generates data frame signal;
Radio receiving transmitting module, connects microprocessor module, by wireless network transmissions data frame signal;
Host computer, connects radio receiving transmitting module, receiving data frames signal, and compensates conversion according to temperature information to displacement information, obtain displacement information accurately, when displacement exceedes early warning value, carry out automatic alarm.
The wireless displacement sensor that the connected mode that described displacement sensor module comprises multiple employing bearing is fixed, this wireless displacement sensor both can be used for the measurement of duct pieces of shield tunnel seam joint open, also can be used for the measurement of section of jurisdiction fracture open amount.
Described radio receiving transmitting module is connected by RS232 serial ports with between host computer, radio receiving transmitting module sends the data frame signal received to host computer by RS232 serial ports and carries out data processing, host computer sends control command to radio receiving transmitting module by RS232 serial ports, comprise beginning and the stopping of data receiver, the setting of receiving cycle and the selection of serial ports.
Described microprocessor module, after receiving the displacement information from displacement sensor module, carries out A/D conversion and digital low-pass filtering.
Described radio receiving transmitting module comprises wireless receiving node and wireless transmission node, and after power-up initializing, first wireless receiving node sets up wireless network, after setting up network success, allows other node to add this wireless network; Wireless transmission node after determining to there is wireless network, request add this wireless network, after successfully adding network, according to the time cycle property of specifying by displacement information and temperature information composition data frame signal send to wireless receiving node.
The data structure of described data frame signal comprises:
Data head field: for demarcating the initial of described data frame signal;
Node serial number field: for demarcating the numbering of wireless displacement sensor in displacement sensor module;
Data field: for carrying displacement information and temperature information;
Check field: whether correct for verifying transmission data;
Data tail field: for demarcating the end of described data frame signal.
Compared with prior art, the present invention carries out temperature compensation, filtering and anti-interference process by temperature sensor to the displacement information collected, make it reach high-precision measurement requirement, and carry out data transmission with wireless network, realize the Real-Time Monitoring accurately and efficiently to tunnel structure change.
Accompanying drawing explanation
Fig. 1 is displacement sensor module mounting structure schematic diagram;
Fig. 2 is general structure schematic diagram of the present invention;
Fig. 3 is program flow diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
Fig. 2 shows a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels, and this system comprises displacement sensor module 1, temperature compensation module 2, microprocessor module 3, radio receiving transmitting module 4 and host computer 5 five parts.
Wherein, the wireless displacement sensor that the connected mode that displacement sensor module 1 comprises multiple employing bearing is fixed, be arranged on the seam crossing (comprising longitudinal joint and circumferential weld) of duct pieces of shield tunnel, both can be used for the measurement of duct pieces of shield tunnel seam joint open, also can be used for the measurement of section of jurisdiction fracture open amount, as shown in Figure 2.The two ends of wireless displacement sensor adopt the mode of bearing to be anchored on the section of jurisdiction of seam both sides, when seam is opened/compressed, drive wireless displacement sensor generation axial tension/compression, thus export different magnitudes of voltage.Because the change of tunnel joint gap is extremely slow, therefore require that wireless displacement sensor range is little, precision is high, performance steady in a long-term is good.In this example, what wireless displacement sensor was selected is potentiometric displacement transducer, range 10mm, precision 0.01mm, output area 0 ~ 5V.
Temperature compensation module 2 is arranged in shield tunnel, and adopt high resolving power temperature sensor, the temperature of Real-Time Monitoring displacement transducer point, for host computer 5 realizes providing temperature information to the temperature compensation of wireless displacement sensor.
Microprocessor module 3 connects displacement sensor module 1 and temperature compensation module 2, receive, from after the displacement information of displacement sensor module, A/D conversion is carried out to it, and adopt the method for digital low-pass filtering, remove the dithering noise that subway circulation produces, ensure the accuracy of displacement information, then pack with temperature information, generate data frame signal.The data structure of this data frame signal comprises:
Data head field: for demarcating the initial of described data frame signal;
Node serial number field: for demarcating the numbering of wireless displacement sensor in displacement sensor module;
Data field: for carrying displacement information and temperature information;
Check field: whether correct for verifying transmission data;
Data tail field: for demarcating the end of described data frame signal.
And the data frame signal that microprocessor module 3 generates is sent to host computer 5 by wireless network by radio receiving transmitting module 4 processs and displays.This module wireless receiving node 41 and wireless transmission node 42, wireless transmission node 42 connects microprocessor module 3, and wireless receiving node 41 is connected with host computer 5 by RS232 serial ports.After power-up initializing, first wireless receiving node sets up wireless network, after setting up network success, allows other node to add this wireless network; Wireless transmission node after determining to there is wireless network, request add this wireless network, after successfully adding network, according to the time cycle property of specifying by displacement information and temperature information composition data frame signal send to wireless receiving node.
Be connected by RS232 serial ports between host computer 5 and the wireless receiving node 41 of radio receiving transmitting module 4, radio receiving transmitting module 4 sends the data frame signal received to host computer by RS232 serial ports and carries out data processing, host computer sends control command to radio receiving transmitting module by RS232 serial ports, comprise beginning and the stopping of data receiver, the setting of receiving cycle and the selection of serial ports.Host computer 5, after receiving data frames signal, compensates conversion according to temperature information to displacement information, obtains displacement information accurately, all right real-time rendering displacement curve, storage data etc., when displacement exceedes early warning value, can carry out automatic alarm, its global procedures flow process as shown in Figure 3.
The present invention can measure the wide variety of tunnel seam in real time by displacement transducer, by filtering, anti-interference process and temperature compensation, removes the impact of subway vibration noise and temperature, makes it reach high-precision measurement requirement; And use wireless network to carry out data transmission, simplify the requirement of wiring, be more applicable to subterranean tunnel complex environment, realize the Real-Time Monitoring accurately and efficiently to tunnel structure change.
Claims (6)
1. be applicable to a wireless seam displacement measurement system for Shield-bored tunnels, it is characterized in that, comprising:
Displacement sensor module, is arranged at the seam crossing of duct pieces of shield tunnel, detects the change in displacement of joint gap;
Temperature compensation module, is arranged in shield tunnel, testing environment temperature;
Microprocessor module, receives the temperature information of displacement information from displacement sensor module and temperature compensation module, and packing generates data frame signal;
Radio receiving transmitting module, connects microprocessor module, by wireless network transmissions data frame signal;
Host computer, connects radio receiving transmitting module, receiving data frames signal, and compensates conversion according to temperature information to displacement information, obtain displacement information accurately, when displacement exceedes early warning value, carry out automatic alarm.
2. a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels according to claim 1, it is characterized in that, the wireless displacement sensor that the connected mode that described displacement sensor module comprises multiple employing bearing is fixed, this wireless displacement sensor both can be used for the measurement of duct pieces of shield tunnel seam joint open, also can be used for the measurement of section of jurisdiction fracture open amount.
3. a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels according to claim 1, it is characterized in that, described radio receiving transmitting module is connected by RS232 serial ports with between host computer, radio receiving transmitting module sends the data frame signal received to host computer by RS232 serial ports and carries out data processing, host computer sends control command to radio receiving transmitting module by RS232 serial ports, comprise beginning and the stopping of data receiver, the setting of receiving cycle and the selection of serial ports.
4. a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels according to claim 1, it is characterized in that, described microprocessor module, after receiving the displacement information from displacement sensor module, carries out A/D conversion and digital low-pass filtering.
5. a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels according to claim 1, it is characterized in that, described radio receiving transmitting module comprises wireless receiving node and wireless transmission node, after power-up initializing, first wireless receiving node sets up wireless network, after setting up network success, other node is allowed to add this wireless network; Wireless transmission node after determining to there is wireless network, request add this wireless network, after successfully adding network, according to the time cycle property of specifying by displacement information and temperature information composition data frame signal send to wireless receiving node.
6. a kind of wireless seam displacement measurement system being applicable to Shield-bored tunnels according to claim 1, it is characterized in that, the data structure of described data frame signal comprises:
Data head field: for demarcating the initial of described data frame signal;
Node serial number field: for demarcating the numbering of wireless displacement sensor in displacement sensor module;
Data field: for carrying displacement information and temperature information;
Check field: whether correct for verifying transmission data;
Data tail field: for demarcating the end of described data frame signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310231699.8A CN104240470A (en) | 2013-06-09 | 2013-06-09 | Wireless joints displacement measuring system for metro shield tunnel |
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| CN201310231699.8A CN104240470A (en) | 2013-06-09 | 2013-06-09 | Wireless joints displacement measuring system for metro shield tunnel |
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Cited By (9)
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| CN106792444A (en) * | 2016-12-06 | 2017-05-31 | 武汉长江仪器自动化研究所有限公司 | Remote-wireless based on lora lifts micro-displacement monitoring system and method |
| CN109635361A (en) * | 2018-11-20 | 2019-04-16 | 同济大学 | A kind of shield tunnel intelligent monitor system based on VR emulation technology |
| CN109855522A (en) * | 2018-10-24 | 2019-06-07 | 广州库克科技有限公司 | A kind of displacement detection system and method for tunnel space deformation |
| CN110006348A (en) * | 2019-03-19 | 2019-07-12 | 天津大学前沿技术研究院有限公司 | A kind of early warning type Shield-bored tunnels segments' joints waterproofing performance intelligent monitoring method |
| CN110044268A (en) * | 2019-03-19 | 2019-07-23 | 天津大学前沿技术研究院有限公司 | Shield tunnel seam based on fiber reflection principle, which is opened, monitors system with faulting of slab ends |
| CN110242351A (en) * | 2019-05-30 | 2019-09-17 | 上海工程技术大学 | A kind of tunnel structure rotational angle of joint displacement sensing device |
| CN111322940A (en) * | 2020-04-08 | 2020-06-23 | 北京交通大学 | Tunnel face deep soil horizontal displacement monitoring device and method |
| CN113739752A (en) * | 2021-08-12 | 2021-12-03 | 北京大成国测科技有限公司 | Tunnel clearance convergence automatic monitoring method and device and electronic equipment |
| CN114323133A (en) * | 2021-12-24 | 2022-04-12 | 中国电建集团福建省电力勘测设计院有限公司 | Real-time sensing system and arrangement method for operating state of open cut cable tunnel |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106792444A (en) * | 2016-12-06 | 2017-05-31 | 武汉长江仪器自动化研究所有限公司 | Remote-wireless based on lora lifts micro-displacement monitoring system and method |
| CN109855522A (en) * | 2018-10-24 | 2019-06-07 | 广州库克科技有限公司 | A kind of displacement detection system and method for tunnel space deformation |
| CN109635361A (en) * | 2018-11-20 | 2019-04-16 | 同济大学 | A kind of shield tunnel intelligent monitor system based on VR emulation technology |
| CN110006348A (en) * | 2019-03-19 | 2019-07-12 | 天津大学前沿技术研究院有限公司 | A kind of early warning type Shield-bored tunnels segments' joints waterproofing performance intelligent monitoring method |
| CN110044268A (en) * | 2019-03-19 | 2019-07-23 | 天津大学前沿技术研究院有限公司 | Shield tunnel seam based on fiber reflection principle, which is opened, monitors system with faulting of slab ends |
| CN110044268B (en) * | 2019-03-19 | 2021-08-31 | 天津大学前沿技术研究院有限公司 | Shield tunnel joint opening and slab staggering monitoring system based on optical fiber reflection principle |
| CN110242351A (en) * | 2019-05-30 | 2019-09-17 | 上海工程技术大学 | A kind of tunnel structure rotational angle of joint displacement sensing device |
| CN111322940A (en) * | 2020-04-08 | 2020-06-23 | 北京交通大学 | Tunnel face deep soil horizontal displacement monitoring device and method |
| CN113739752A (en) * | 2021-08-12 | 2021-12-03 | 北京大成国测科技有限公司 | Tunnel clearance convergence automatic monitoring method and device and electronic equipment |
| CN114323133A (en) * | 2021-12-24 | 2022-04-12 | 中国电建集团福建省电力勘测设计院有限公司 | Real-time sensing system and arrangement method for operating state of open cut cable tunnel |
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Application publication date: 20141224 |