CN210775312U - Crack on-line measuring system - Google Patents
Crack on-line measuring system Download PDFInfo
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- CN210775312U CN210775312U CN201921342297.4U CN201921342297U CN210775312U CN 210775312 U CN210775312 U CN 210775312U CN 201921342297 U CN201921342297 U CN 201921342297U CN 210775312 U CN210775312 U CN 210775312U
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- electric signal
- signal collector
- film resistor
- control computer
- industrial control
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Abstract
The utility model discloses an online crack detection system, which comprises a film resistor R1 formed by a conductive brittle coating, a power supply E, an electric signal collector, an industrial control computer and a cloud server, the film resistor R1 is coated at the position of the steel structure to be measured, which is easy to crack, and two ends of the film resistor R1 are connected with the power supply E through leads to form a measuring circuit, the measuring circuit is connected with the electric signal collector through the signal wire to collect the electric signal, the structure of the utility model is reasonable in design, the conductive brittle coating is coated on the thin film resistor R1 formed at the position of the steel structure where cracks are easy to generate, the problem that the traditional strain gauge is difficult to attach is solved, the electric signal collector is adopted to measure the current of the formed measuring circuit, and the electric signal collector transmits the collected and processed signals to the industrial control computer, and an operator monitors the crack condition of the measured part according to the data acquired by the industrial control computer.
Description
Technical Field
The utility model relates to a crack on-line measuring system.
Background
The steel structure has the problems that the fatigue aging of the steel bridge is more and more serious due to the factors of continuous increase of load, lack of infrastructure construction funds and the like, the fatigue cracking of the steel structure refers to the phenomenon that a steel bridge structure or a component is damaged under the action of alternating stress far lower than the ultimate strength of steel, no sign exists, the steel bridge structure or the component is a phenomenon which occurs suddenly, no obvious plastic deformation exists, the steel bridge structure or the component belongs to brittle damage under the action of cyclic load, preventive measures are difficult to take, and the steel bridge structure or the component has great destructiveness, the traditional strain foil attaching technology is adopted in the existing steel structure crack detection technology, and due to the limitation of the, which can not be well attached to the crack part, easily causes the drop of the attached strain gauge or the inaccurate detection value, nondestructive detection technologies such as eddy current, magnetic powder and penetration are adopted for detection, the technology is complex, the requirement on detection personnel is high, and online monitoring cannot be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a crack on-line measuring system that structural design is reasonable.
The utility model provides a technical scheme that above-mentioned problem adopted is: a crack online detection system comprises a film resistor R1 formed by a conductive brittle coating, a power supply E, an electric signal collector and an industrial control computer, wherein the film resistor R1 is coated at a position of a steel structure to be detected where cracks are easy to generate, and two ends of the film resistor R1 are connected with the power supply E through leads to form a measuring circuit, the measuring circuit is connected with the electric signal collector through a signal wire to collect electric signals, and the electric signal collector is connected with the industrial control computer through a uniform communication protocol channel.
Further: the communication port of the electric signal collector is provided with a wireless communication module, the communication port of the signal collector is provided with a wireless communication module which is in communication connection with a wireless router of a local area network in a region under a unified communication protocol, and the wireless router and the coordinator are connected with an industrial personal computer through an RS232/484 network port.
Further: the electric signal collector is provided with a multi-channel input port, and the positions of the steel structure to be measured, which have more cracks and are easy to generate, are correspondingly provided with measuring circuits and connected with ports corresponding to the multi-channel input port arranged on the electric signal collector.
Further: the wireless communication module is a ZigBee wireless communication module, a plurality of groups of electric signal collectors are arranged in the measurement area, and the plurality of groups of electric signal collectors and the wireless router of the local area network in the area are connected with the coordinator in the ad hoc wireless communication network through a unified communication protocol.
Further: the industrial control computer is connected with the cloud server through the Ethernet
Compared with the prior art, the utility model, have following advantage and effect: structural design is reasonable, adopt electrically conductive fragile coating to scribble and establish at the easy sheet resistance R1 that produces the crack department and constitute of steel construction, the attached difficult problem of traditional foil gage has been solved, adopt electric signal collector to carry out current measurement to the measuring circuit who constitutes, and electric signal collector carries out signal transmission to the industrial control computer with the collection processing, operating personnel monitors the crack condition of survey position according to the data that the industrial control computer obtained, the industrial control computer passes through ethernet with data transmission to cloud ware simultaneously, make accessible mobile terminal such as smart mobile phone etc. visit the data of cloud ware and acquire, realize real-time supervision and remote monitoring's purpose.
Drawings
Fig. 1 is a schematic diagram of a detection circuit according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the connection between the electrical signal collector and the industrial control computer according to the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1 to 3, the crack on-line detection system of the present embodiment includes a thin film resistor R1, a power supply E, an electrical signal collector, and an industrial control computer, where the thin film resistor R1 is coated at a crack-prone position of a steel structure to be detected, and both ends of the thin film resistor R1 are connected to the power supply E through leads to form a measurement circuit, the measurement circuit is connected to the electrical signal collector through a signal line to collect an electrical signal, the electrical signal collector is connected to the industrial control computer through a unified communication protocol channel, the industrial control computer is connected to a cloud server through an ethernet, the measurement circuit is provided with a protection resistor R2 in parallel, the thin film resistor R1 formed by coating the conductive brittle coating at the crack-prone position of the steel structure in the present embodiment solves the problem of difficult attachment of the conventional strain gauge and is connected to the power supply E to form the measurement circuit, if cracks are generated at the coating, due to the adoption of the brittle coating, the structure of the coating is correspondingly changed, the change of the measured current is caused, namely, the cracks are generated at the position where the brittle coating is correspondingly arranged, the current signal of the detection circuit is acquired and processed through the electric signal collector and is connected with the industrial personal computer through the communication protocol channel to realize the management and monitoring of the acquired data, and meanwhile, the industrial personal computer is connected with the cloud server through the Ethernet to realize the cloud storage and the remote monitoring of the data, in the embodiment, the electric signal collector can adopt an EM-9110 series acquisition module developed by Thai research and can adopt an EM-911010 channel voltage/current acquisition channel to acquire analog quantity within 0-36V and 10A, and is provided with Ethernet, RS485 and RS232 multi-form communication serial ports to realize the wired and wireless transmission of the data, the industrial control computer in the embodiment can adopt a porphyry industrial control computer (IPC-610L), the cloud server can adopt an AliiII type cloud server, and the industrial control computer is connected with the AliiII type cloud server through a network protocol port.
The communication port of the electric signal collector is provided with a wireless communication module, the communication port of the signal collector is provided with a wireless communication module which is in communication connection with a wireless router of a local area network in a region under a unified communication protocol, and the wireless router and the coordinator are connected with an industrial personal computer through an RS232/484 network port.
The electric signal collector is provided with a multi-channel input port, and the positions of the steel structure to be measured, which have more cracks and are easy to generate, are correspondingly provided with measuring circuits and connected with ports corresponding to the multi-channel input port arranged on the electric signal collector.
The wireless communication module is a ZigBee wireless communication module, a plurality of groups of electric signal collectors are arranged in the measurement area, and the plurality of groups of electric signal collectors and the wireless router of the local area network in the area are connected with the coordinator in the ad hoc wireless communication network through a unified communication protocol.
The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides a crack on-line measuring system which characterized in that: the measuring device comprises a film resistor R1, a power supply E, an electric signal collector and an industrial control computer, wherein the film resistor R1 is coated at the position of a steel structure to be measured, which is easy to crack, and two ends of the film resistor R1 are connected with the power supply E through leads to form a measuring circuit, the measuring circuit is connected with the electric signal collector through a signal wire to collect electric signals, and the electric signal collector is connected with the industrial control computer through a unified communication protocol channel.
2. The online crack detection system as claimed in claim 1, wherein: the conductive brittle coating is formed by adding a soft polyurethane coating of conductive carbon black.
3. The online crack detection system as claimed in claim 1, wherein: the communication port of the electric signal collector is provided with a wireless communication module, the communication port of the signal collector is provided with a wireless communication module which is in communication connection with a wireless router of a local area network in a region under a unified communication protocol, and the wireless router and the coordinator are connected with an industrial personal computer through an RS232/484 network port.
4. The online crack detection system as claimed in claim 1, wherein: the electric signal collector is provided with a multi-channel input port, and the positions of the steel structure to be measured, which have more cracks and are easy to generate, are correspondingly provided with measuring circuits and connected with ports corresponding to the multi-channel input port arranged on the electric signal collector.
5. The online crack detection system as claimed in claim 3, wherein: the wireless communication module is a ZigBee wireless communication module, a plurality of groups of electric signal collectors are arranged in the measurement area, and the plurality of groups of electric signal collectors and the wireless router of the local area network in the area are connected with the coordinator in the ad hoc wireless communication network through a unified communication protocol.
6. The online crack detection system as claimed in claim 1, wherein: the industrial control computer is connected with the cloud server through the Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342297.4U CN210775312U (en) | 2019-08-19 | 2019-08-19 | Crack on-line measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342297.4U CN210775312U (en) | 2019-08-19 | 2019-08-19 | Crack on-line measuring system |
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| Publication Number | Publication Date |
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| CN210775312U true CN210775312U (en) | 2020-06-16 |
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| CN201921342297.4U Active CN210775312U (en) | 2019-08-19 | 2019-08-19 | Crack on-line measuring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777368A (en) * | 2022-04-08 | 2022-07-22 | 青岛海尔空调器有限总公司 | Method and device for monitoring risk of circulation system pipeline and circulation system |
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2019
- 2019-08-19 CN CN201921342297.4U patent/CN210775312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777368A (en) * | 2022-04-08 | 2022-07-22 | 青岛海尔空调器有限总公司 | Method and device for monitoring risk of circulation system pipeline and circulation system |
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Effective date of registration: 20201112 Address after: Hangzhou City, Zhejiang province 310030 Xihu District three Town Xiyuan Road No. 10 Patentee after: HUADIAN ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Address before: 310030 quality inspection center, No.10, Xiyuan 1st Road, Xihu District, Hangzhou City, Zhejiang Province Patentee before: STATE POWER CORPORATION OF HYDROPOWER CONSTRUCTION EQUIPMENT QUALITY AND TESTING CENTER |