CN101192336A

CN101192336A - Building structure stability monitoring and pre-alarming method, and its device

Info

Publication number: CN101192336A
Application number: CNA2006101239513A
Authority: CN
Inventors: 张达德
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-01
Filing date: 2006-12-01
Publication date: 2008-06-04

Abstract

The invention provides a method for monitoring and warning of stability of a civil structure, and a device thereof. The method essentially includes the following steps: a plurality of dip surveyors and gap surveyors are arranged on a structure to be monitored for sensing a dip and a gap of the structure; after two sensing results are converted by a microcomputer module, two sensing signals are simultaneously sent to a spot industrial degree computer through a wired or wireless communications interface; and a monitoring result is sent to a remote computer via a communications module of a wired or wireless local area network (Wireless Lan) to recognize changes in the dip and the gap of the monitored structure and to judge whether abnormal condition continuously occurs for providing relevant data to a management or decision-making organization to enter the spot in real time and carry out maintenance work.

Description

Building structure stability monitoring and pre-alarming method and device thereof

Technical field

The present invention relates to a kind of building structure stability monitoring and pre-alarming method and device thereof.

Background technology

The lengthening the life, reinforces of soil art water conservancy old works removes dangerous section's work, be the main work of following public work and each competent authorities, generally speaking, at the dependency structure body, as science of bridge building, side slope, dam buildings etc., all need utilize monitoring equipment to set up complete system, so that data information in time to be provided, study and judge for management unit, assign decision instruction rapidly, effectively reach and take precautions against natural calamities, keep away the calamity purpose, and then works is carried out to reinforce in good time and remove dangerous section's work.

The service of dropping into owing to complete successively in relevant civil structure thing in 1960 to 1970 front and back, its length of service surpass more than 70% of the Design Theory time limit mostly.And the design considerations of original employing, because long-term environmental effect factor (earthquake, flood, earth flow etc.) strengthens (improvement of carrier, vehicle arrangement, capacity increase) with load, whether still can provide safe service level, be current most important work and task really.Because above-mentioned situation, be not at single engineering, but comprehensive phenomenon, how to set up have simple, ageing, reliability, monitoring that cost the is low early warning system of taking precautions against natural calamities is the most basic consideration and the foundation that the application develops, delivers.

Traditional monitoring equipment and system, nothing more than at the structure behavior, supervised measurement, and by Monitoring Data, provide design self-criticism or according to each behavior management value of design spirit comparison, thereby decision-making and follow-up action index are in real time proposed in management unit, monitoring method that these are traditional and data aggregation are all at engineering speciality such as stress deformation, hydraulic pressure depressions.Because long-term conditions of service and environmental change, these behavioral indicators are probably many to be departed from former factory design basis, and given, the decision-making foundation that causes the management value all has highly uncertainty with assigning.

Moreover, traditional monitoring system, must cooperate electric power, communication transmission equipment etc., in case use, quantity and cost are too high, have in addition far above the construction cost of monitoring objective thing, these problems, all perplexing management and decision unit, this also is to set up the monitoring management platform slowly to fail the reason implemented comprehensively always, and this phenomenon is long-term insoluble problem.

Summary of the invention

The object of the present invention is to provide a kind of by the automatic monitoring pattern, accurately control the inclination and the gap situation of change of monitoring thing, to obtain related data in advance, the building structure stability monitoring and pre-alarming method and the device thereof that supply relevant unit to carry out maintenance job in good time.

Another object of the present invention is to provide a kind of can be via Long-distance Control, regularly regularly, carry out inclination and crack detecting at works to be monitored in real time or in rugged surroundings, with building structure stability monitoring and pre-alarming method and the device thereof that reaches prior warning function.

Can reach the building structure stability monitoring and pre-alarming method and the device thereof of foregoing invention purpose, include detecting unit and data is compiled the unit, this detecting unit is made of measurement of dip angle device, clearance measurement device, power management module, micro computer module and wired or wireless communication interface; Its measuring method is that the measurement of dip angle device of detecting unit and clearance measurement device are laid on the works to be monitored, monitor with inclination and gap works, and two kinds of monitoring results all are sent in the micro computer module, after the micro computer module is with the conversion of two kinds of detection signals, again by wired or wireless communication interface with two kinds of detection signals simultaneously the data of being sent to compile in the unit; This data is compiled the unit and is made of technical grade computer, power management module, wired or wireless LAN (Local Area Network) communication module and wired or wireless communication interface; Wherein, its processing procedure is by the detection signal of wired or wireless communication interface reception from detecting unit, transmit signals to again in the technical grade computer, and can monitoring result be sent to remote computer by wired or wireless LAN (Local Area Network) communication module, be subjected to the monitoring of structures thing whether to continue have abnormal conditions to take place to learn, with provide related data to the management or decision unit in real time or the scene that enters in due course carry out maintenance work.

Building structure stability monitoring and pre-alarming method provided by the present invention and device thereof when comparing mutually with other prior art, have following advantage:

1, the present invention adopts the automatic monitoring pattern, accurately controls the inclination situation of change of monitoring thing, obtaining related data in advance, for relevant unit's maintenance of marching into the arena in good time.

2, the present invention is via Long-distance Control, regularly, regularly or in rugged surroundings carry out inclination and crack detecting at works to be monitored, to reach the effect of prior early warning.

Description of drawings

The block scheme of Fig. 1 building structure stability monitoring and pre-alarming method of the present invention and device thereof;

The process flow diagram of Fig. 2 building structure stability monitoring and pre-alarming method of the present invention and device thereof;

1, detecting unit, 11, measurement of dip angle device, 12, clearance measurement device, 13 power management modules, 14, the micro computer module, 15, wireless or wire communication interface, 2, data collection module, 21, the technical grade computer, 22 wireless or wire communication interfaces, 23, power management module, 24 wired or wireless LAN (Local Area Network) communication modules.

Embodiment

Embodiment: seeing also shown in Figure 1ly, is the block scheme of building structure stability monitoring and pre-alarming method provided by the present invention and device thereof, mainly is to compile unit 2 by detecting unit 1 and data to be constituted; Wherein, this detecting unit 1 includes:

At least more than one measurement of dip angle device 11, this measurement of dip angle device 11 is to be laid on the works to be measured, it mainly is the angle of inclination of monitoring of structures thing, and measurement of dip angle device 11 is to adopt two or three to quicken rule, its resolution can reach 0.1 to 0.5 degree, and adopt simulation output, if adopt numeral output then not need the micro computer module;

At least more than one clearance measurement device 12, this clearance measurement device 12 is to be laid on the works to be measured, mainly be to measure at the clearance distance of works, and this clearance measurement device 12 can be linear variable differential transformer (LVDT) (LVDT) or variable current lock sensor element, its resolution can reach 0.1 to 0.5 centimeter, is to adopt simulation output;

Power management module 13, this power management module 13 are to adopt the module that exchanges commentaries on classics direct current or the conversion of DC decompression direct current according to the on-the-spot situation that applies, to provide each module required working power;

Micro computer module 14, this micro computer module 14 is the core of detecting unit 1, it mainly is the signal that whole measurement of dip angle device 11 of remittance or clearance measurement device 12 produce, compiling the detecting situation of unit 2 each measurement of dip angle device 11 of repayment or clearance measurement device 12 to data, and connect 15 by wired or wireless communication and receive and carry out and compile the command signal that unit 2 is sent from data by wired or wireless communication interface; In addition, this micro computer module 14 can measure measurement of dip angle device 11 or whether clearance measurement device 12 has unusually, and measures the state of supply of power supply, is in optimum working state to guarantee detecting unit 1; Because measurement of dip angle device 11 or clearance measurement device 12 are to adopt distributed measurement, so need take many daisy chain (daisy chain) the serial connection communication modes of one main (one master) from (multiple slaves), guarantee that Data acquisition, can not detect the node wiring because of certain and get loose or rupture and cause overall operation to lose connection, thereby adopt wired or wireless communication interface 15.When data is compiled the communication of a certain detecting node of unit 2 perception when wrong, i.e. proactive notification remote monitoring center maintenance.And this data is compiled unit 2 and is mainly comprised:

Technical grade computer 21 is regularly, regularly to assign each detecting point collection information of instructing to detecting unit 1 by wired or wireless communication interface 22, and the repayment remote monitoring center, but and the information of not timing receiving remote Surveillance center each detecting unit 1 of indication inquiry.Under timing data collection pattern, can judge voluntarily whether the works of monitoring has abnormal information to produce, and initiatively circulate a notice of remote monitoring center.In addition, this technical grade computer 21 also can detect each the sense node situation of detecting unit 1 and the situation of communication connection, so that the notice remote monitoring center is taked necessary maintenance;

Power management module 23, this power management module 23 are to adopt UPS (UPS), compile unit 2 and detecting unit 1 power supply to give information, and guarantee that system works approximately;

Wired or wireless LAN (Local Area Network) communication module 24, this communication module 24 are to adopt wired ADSL or WLAN communication module according to field conditions, make technical grade computer 21 can with remote monitoring center message exchange data.

Therefore, the present invention is that the works by 11 pairs of monitorings of measurement of dip angle device carries out the inclination detecting, and whether the lasting works of following the trail of has generation unusual, if have, then arrange in pairs or groups the again measurement result of clearance measurement device 12, accurately grasp the tilt variation situation of works, carry out on-the-spot complete detection in real time for management unit, reinforcing removes the dangerous section and does.Do not continue to change if measurement of dip angle device 11 repayment results are inclination, can confirm according to the measurement of clearance measurement device 12 equally, present steady state (SS) really to guarantee structure.

See also shown in Figure 2, it is the process flow diagram of building structure stability monitoring and pre-alarming method of the present invention and device thereof, be to treat the geodesic structure thing regularly, regularly or in rugged surroundings, carry out the measurement in degree of tilt and expansion joint or existing crack in wired or wireless mode, wherein, be based on gradient measurement, expansion joint or existing crack are auxilliary; Can learn according to the measurement result of degree of tilt whether works to be measured continues stressed variation, represents instability if continue to change, and representative tends towards stability if change decrescence, does not change representative and stablizes; And the metering system in expansion joint or existing crack can adopt conduction and variable current device to measure, with the result who obtains the crack expansion or dwindle; Or a glass sheet is fixed in the two ends in crack, if breaking, glass sheet then represent the crack to strengthen; Therefore, learn by the gradient measurement result whether works continues to tilt, and passes through the auxiliary of crack measurement result again, can accurately control the real time status that is subjected to the monitoring of structures thing, makes the foundation of maintenance in the future so that relevant unit to be provided earlier.

Above-listed detailed description only is at the specifying of one of the present invention possible embodiments, and this embodiment is not in order to limiting claim of the present invention, does not allly break away from the equivalence that skill spirit of the present invention does and implements or change, all should be contained in the claim of this case.

Claims

1. building structure stability monitoring and pre-alarming method, it is characterized in that, be regularly, regularly or in rugged surroundings, treat the measurement of carrying out degree of tilt or crack in the geodesic structure thing in wired or wireless mode, learn in real time according to the measurement result of degree of tilt whether works to be measured continues stressed variation, pass through the auxiliary of crack measurement result again, can accurately control the real time status of the works of being monitored, to offer relevant unit as the foundation of maintenance in the future.

2. building structure stability monitoring and pre-alarming method as claimed in claim 1 is characterized in that, described crack metering system can adopt conduction and variable current device to measure, with the result who obtains the crack expansion or dwindle.

3. building structure stability monitoring and pre-alarming method as claimed in claim 1 is characterized in that, described crack metering system can be fixed on a glass sheet two ends in crack, and representative structure thing degree of tilt increases if glass sheet breaks then.

4. a building structure stability monitoring and pre-alarming device is characterized in that, its structure comprises that detecting unit and data compile the unit,

This detecting unit includes:

At least more than one measurement of dip angle device, this measurement of dip angle device is laid on the works to be measured, so that the works angle of inclination is detected;

At least more than one clearance measurement device, this clearance measurement device is laid on the crack of works to be measured, measures with the crack distance at works;

The micro computer module, the signal that whole measurement of dip angle device of this micro computer module remittance or clearance measurement device produce is repaid each measurement of dip angle device or clearance measurement device detecting situation to compile the unit by wired or wireless communication interface to data;

This data is compiled the unit and is comprised:

The technical grade computing machine, this computing machine regularly, is regularly assigned each detecting point collection information of instructing to detecting unit by wired or wireless communication interface, and the repayment remote monitoring center, but and not timing receiving remote Surveillance center each sense node information of indication inquiry;

Wired or wireless communication module, this communication module are the interface modules of technical grade computer and remote monitoring center message exchange;

Continue to obtain the inclination information of works by the measurement of dip angle device, the measurement result of the clearance measurement device of arranging in pairs or groups again can accurately be grasped the tilt variation situation of works.

5. building structure stability monitoring and pre-alarming device as claimed in claim 4 is characterized in that, the measurement of dip angle device of described detecting unit is to adopt two or three to quicken rule, and its resolution can reach 0.1 to 0.5 degree, and adopts simulation output.

6. building structure stability monitoring and pre-alarming device as claimed in claim 4, it is characterized in that, the clearance measurement device of described detecting unit can be linear variable differential transformer (LVDT) (LVDT) or variable current lock sensor element, and its resolution can reach 0.1 to 0.5 centimeter, is to adopt simulation output.

7. building structure stability monitoring and pre-alarming device as claimed in claim 4, it is characterized in that, described detecting unit also comprises power management module, this power management module applies situation according to the scene, adopt to exchange the module of changeing direct current or the conversion of DC decompression direct current, to provide each module required working power.

8. building structure stability monitoring and pre-alarming device as claimed in claim 4, it is characterized in that, the micro computer module of described detecting unit can measure the measurement of dip angle device or whether the clearance measurement device has unusual and power supply state of supply, is in optimum working state to guarantee detecting unit.

9. building structure stability monitoring and pre-alarming device as claimed in claim 4, it is characterized in that, described data is compiled the technical grade computer of unit under timing data collection pattern, can judge voluntarily whether the works of monitoring has abnormal information to produce, and initiatively circulate a notice of remote monitoring center.

10. building structure stability monitoring and pre-alarming device as claimed in claim 4, it is characterized in that, the technical grade computer that described data is compiled the unit can detect each the sense node situation of detecting unit and the situation of communication connection, so that the notice remote monitoring center is taked necessary maintenance.

11. building structure stability monitoring and pre-alarming device as claimed in claim 4, it is characterized in that, described data is compiled the unit and is also comprised power management module, this power management module is to adopt UPS (UPS), the power supply that compiles unit and detecting unit to give information guarantees that system works approximately.