CN220290299U - Auxiliary alarm device for cable bridge - Google Patents
Auxiliary alarm device for cable bridge Download PDFInfo
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- CN220290299U CN220290299U CN202321118256.3U CN202321118256U CN220290299U CN 220290299 U CN220290299 U CN 220290299U CN 202321118256 U CN202321118256 U CN 202321118256U CN 220290299 U CN220290299 U CN 220290299U
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- 238000004880 explosion Methods 0.000 claims abstract description 15
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- 230000006698 induction Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000013024 troubleshooting Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Locating Faults (AREA)
Abstract
The utility model relates to a cable testing bridge auxiliary alarm device, relate to the field of cable testing bridge, it includes the cable testing bridge body, be provided with a plurality of fault detection modules according to setting length interval on the cable testing bridge body, detection module all includes acoustic control sensor or vibration control sensor, the signal output part signal connection of acoustic control sensor or vibration control sensor has A/D converter, the cable breaks down and accompanies explosion vibration and explosion sound often, can detect the sound intensity of trouble through acoustic control sensor, can detect the vibration intensity of trouble through vibration control sensor, the A/D converter converts sound intensity, vibration intensity that acoustic control sensor and vibration control sensor sensed into sound numerical value, vibration numerical value, combine the serial number of fault detection module, can obtain the information such as the serial number of fault detection module nearest with cable fault position, fault position direction and fault distance; the utility model has the effect of promoting trouble shooting personnel to the efficiency that circuit fault position was fixed a position.
Description
Technical Field
The application relates to the field of cable bridges, in particular to an auxiliary alarm device for a cable bridge.
Background
The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river. In the electric power line, the proportion of the cable is gradually increasing. Power cables are cable products used in the main line of power systems to transmit and distribute high power electrical energy, including various voltage classes of 1-500KV and above, and various insulated power cables.
The power cable circuit has been popular in power supply circuits such as cities, factories, enterprises and the like at present due to the reasons of concealed laying, convenient maintenance, reliable operation, environment beautification and the like. However, once the cable fails in operation, huge losses are brought to the production operation with high continuity. Whether a high-voltage cable or a low-voltage cable, faults are often caused by short circuits, overload operation, insulation aging, external force action and the like in the construction, installation and operation processes.
At present, a cable bridge is often required to be used for laying cables in underground installation, and before the cables are laid, the cable bridge is required to be fixed on an underground concrete structure according to the set cable routing arrangement, and then the cables are installed through the cable bridge.
At present, when an underground circuit fails, related fault inspectors often need to use a cable fault location instrument to inspect different sections of a cable section by section on the ground according to the wiring of the cable, and locate the fault position of the cable according to a handheld display device.
In the actual circuit fault checking work, fault checking staff find that the fault position of the cable is manually positioned section by the fault checking staff, when the weather of the external environment is bad, more time and force are required to be consumed by the fault checking staff, the efficiency is low, the time spent for maintaining the cable is prolonged, the normal use of the related section power equipment is influenced, and the improvement exists.
Disclosure of Invention
In order to improve the efficiency of fault troubleshooting personnel in locating circuit fault position, practice thrift the time that needs spending of maintaining fault circuit, this application provides a cable bridge auxiliary alarm device.
The application provides an auxiliary alarm device for a cable bridge frame, which adopts the following technical scheme:
the utility model provides an auxiliary alarm device of cable testing bridge, includes the cable testing bridge body, be provided with a plurality of fault detection modules according to setting for length interval on the cable testing bridge body, a plurality of fault detection module all is provided with the serial number, a plurality of fault detection module all includes:
the fault sensing piece is used for sensing cable faults and outputting fault intensity signals;
the A/D converter is in signal connection with the fault induction piece and is used for receiving the fault intensity signal and outputting an intensity value signal;
the signal output ends of the A/D converters are in signal connection with a data processing module, the data processing module receives the intensity value signals and compares the intensity value signals, the data processing module outputs the number of the fault detection module closest to the fault position of the cable as a closest number signal, the distance between the closest fault detection module and the fault position of the cable as a fault distance signal and the direction of the fault position of the cable relative to the fault detection module closest to the fault position as a fault direction signal;
the signal output end of the data processing module is in signal connection with display equipment of the power control center, and the display equipment receives and displays the nearest number signal, the fault distance signal and the fault direction signal.
By adopting the technical scheme, because the fault induction piece is arranged on the cable bridge, after the cable is installed and laid through the cable bridge, the fault induction piece detects the strength of a cable fault and outputs a fault strength signal due to frequent explosion sound and explosion vibration, the A/D converter converts the fault strength signal into a strength numerical value signal, the data processing module compares and processes the strength numerical values output by the A/D converters, and then outputs information related to three faults of the number of the fault detection module closest to the fault position, the distance between the nearest fault detection module and the fault position and the direction of the fault position relative to the nearest fault detection module, the fault position of the cable can be positioned through the three fault information, a fault troubleshooter does not need to troubleshoot the cable fault position section by section according to a cable wiring, the time required by the fault troubleshooter to detect the cable fault position is saved, and the efficiency of the fault troubleshooter in detecting the cable fault position is improved. Meanwhile, as the signal output end of the data processing module is in signal connection with the display equipment of the power control center, related personnel of the power control center can conveniently grasp the state of the cable.
Preferably, the fault sensing member includes:
the vibration control sensor is fixedly connected with the inner side wall of the cable bridge body and is used for detecting the explosion vibration intensity sensed by the corresponding section and outputting a vibration intensity sensing signal;
the signal output ends of the vibration control sensors are connected with the A/D converter in a signal mode, and the A/D converter receives the vibration intensity sensing signals and outputs vibration intensity value signals as fault intensity signals.
Through adopting above-mentioned technical scheme, because the cable breaks down, often accompanies explosion vibration, can respond to the vibration intensity of the vibration that explosion arouses through vibration control sensor, can change the sound intensity induction signal that sound control sensor, vibration control sensor detected into corresponding numerical value signal through the AD converter, be convenient for follow-up data processing.
Preferably, the fault sensing member includes:
the sound control sensor is fixedly connected with the inner side wall of the cable bridge body and is used for detecting the fault sound intensity sensed by the corresponding section and outputting a sound intensity sensing signal;
the signal output ends of the sound control sensors are connected with the A/D converter through signals, and the A/D converter receives the sound intensity induction signals and outputs sound intensity value signals as fault intensity signals.
Through adopting above-mentioned technical scheme, because the cable breaks down, often accompanies explosion sound, the explosion sound decays along with the increase of distance appears easily gradually, consequently, through the sound intensity of test explosion, can realize the location to the fault location on the cable, through acoustic control sensor, can realize detecting the intensity of explosion sound, and then realize carrying out the technological effect of location to the fault location.
Preferably, the data processing module includes:
the DSP chip is in signal connection with the A/D converters and is used for receiving the vibration intensity value signals, outputting the number of the fault detection module closest to the fault point as the closest number signal, outputting the number of the fault detection module closest to the fault point as a second near number signal and outputting the maximum vibration intensity value signal;
the singlechip is in signal connection with the DSP chip and is used for receiving the nearest serial number signal and the second nearest serial number signal, outputting the fault direction signal, receiving the maximum vibration intensity value signal and outputting the distance between the fault position and the nearest fault detection module.
By adopting the technical scheme, the DSP chip can be used for comparing the output vibration intensity value signals of the A/D converter and outputting the number of the fault detection module closest to the cable position and the number of the fault detection module closest to the cable position, and the distance between the cable fault position and the fault detection module closest to the fault position can be obtained by comparing the vibration intensity values of the vibration control sensor closest to the second closest to the cable position because the vibration intensity is attenuated when the vibration intensity propagates in the cable bridge; the fault position of the cable can be obtained by the singlechip relative to the direction of the fault detection module nearest to the fault position. For example, when a cable fault occurs between fault detection modules numbered 10 and 11 and is closer to the fault detection module numbered 10, the intensity value output by the fault detection module numbered 10 is the largest, the intensity value output by the fault detection module numbered 11 is the second largest, the distance between the fault position on the cable and the fault detection module numbered 10 can be obtained through the DSP chip, meanwhile, the DSP chip can calculate the distance between the fault position and the fault detection module numbered 10 according to the intensity value, the distance between each fault detection module is the same, the approximate distance, the direction and the like of the fault position on the cable can be obtained, and when the cable fails, a fault inspector can locate the fault position of the cable without performing section-by-section inspection, so that the time required for maintaining the cable is saved.
Preferably, the cable bridge frame is provided with a mounting groove on the inner side wall, the vibration control sensor is embedded and mounted in the mounting groove, and the sensing ends of the vibration control sensor are all arranged towards the cable.
Through adopting above-mentioned technical scheme, through the setting of mounting groove, can make acoustic control sensor, shake accuse sensor inlay and establish on cable testing bridge's inside wall, form good protection effect to acoustic control sensor, shake accuse sensor.
To sum up, the application comprises the following beneficial technical effects of at least one auxiliary alarm device for a cable bridge:
1. through mutual overlapping and use among the vibration control sensor (or the sound control sensor), the DSP chip and the singlechip, when a cable fails, the position of the cable with the failure can be positioned, so that a failure inspector does not need to inspect the cable section by section according to the cable wiring, the efficiency of the failure inspector in inspecting the cable failure is improved, and the time spent for subsequent maintenance of the circuit is saved;
2. because the signal output part of the singlechip is in signal connection with the display equipment positioned in the power control center, when the cable fails, operators positioned in the power control center can conveniently grasp the failure position of the cable.
Drawings
Fig. 1 is a schematic diagram mainly used for showing a positional relationship between a cable tray and a fault detection module according to an embodiment of the present application.
Fig. 2 is a schematic diagram mainly used for illustrating internal signal transmission of a cable bridge according to an embodiment of the present application.
Reference numerals illustrate: 1. a cable bridge body; 2. a carrying plate; 3. a cable grip; 4. a mounting groove; 5. a vibration control sensor.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-2.
Examples
The embodiment of the application discloses an auxiliary alarm device for a cable bridge. Referring to fig. 1, the cable bridge frame mainly comprises a cable bridge frame body 1, wherein a bearing plate 2 is arranged in the cable bridge frame body 1, four cable clamping pieces 3 are fixedly connected to the bearing plate 2 through threads, and the cable can be clamped and fixed on the bearing plate 2 through the cable clamping pieces 3.
In this embodiment of the present application, a plurality of fault detection modules are disposed on the cable bridge body 1 according to a set interval, where the fault detection modules mainly include a fault sensing element, an a/D converter, and a data processing module, and a signal output end of the data processing module is in signal connection with a display device of the power control center.
Numbering a plurality of fault detection modules on the cable bridge frame, after the cable is installed underground through the cable bridge frame, monitoring the cable state in the cable bridge frame by the fault detection modules, wherein the positions of the fault detection modules can correspond to the positions on the ground or the distances between the fault detection modules and a building.
Referring to fig. 1 and 2, in the embodiment of the present application, the fault sensing member includes a vibration control sensor 5, an installation groove 4 adapted to the size of the vibration control sensor 5 is provided on the inner side wall of the cable bridge body 1, the vibration control sensor 5 is fixed in the installation groove 4 through glue connection, and the sensing portion of the vibration control sensor 5 is set towards the cable fixed on the carrier plate 2.
When a fault occurs on the cable, the cable often vibrates along with explosion, the vibration intensity detected by the vibration control sensor 5 gradually weakens along with the increase of the distance between the cable and the fault position, and the vibration intensity detected by the vibration control sensor 5 closest to the fault position of the cable is the largest.
The vibration intensity measured by the vibration control sensor 5 can be converted into a numerical signal which is convenient to process through an A/D converter.
In the embodiment of the application, the data processing module comprises a DSP chip and a singlechip. The signal input end of the DSP chip is connected with the signal output end of the A/D converter through a data bus signal, the DSP chip receives the vibration intensity value signal output by the A/D converter and compares the vibration intensity value signal, and the serial number of the fault detection module closest to the fault position on the cable, the serial number of the fault detection module second closest to the fault position on the cable and the maximum vibration intensity value are output.
The signal output end of the DSP is in signal connection with the signal input end of the singlechip, the singlechip receives the number of the fault detection module closest to the fault position on the cable, the number of the fault detection module second closest to the fault position on the cable and the maximum vibration intensity value, and the direction of the fault position on the cable relative to the closest fault detection module and the distance between the fault position on the cable and the closest fault detection module can be output.
Through the display device, an operator can intuitively acquire the fault position on the cable.
For example, assume that the spacing between fault detection modules is 20m, and the fault location on the cable is between two fault detection modules numbered 10 and 11, and the fault on the cable is closer to the fault detection module numbered 10, being 7m.
When a fault occurs, the vibration intensity sensed by the vibration control sensor 5 at the position of the number 10 is the largest, the vibration intensity sensed by the vibration control sensor 5 at the position of the number 11 is the second largest, and the DSP chip outputs vibration intensity values at the positions of the numbers 10, 11 and 10 after comparison.
The singlechip can judge the direction and the distance of the fault position on the cable relative to the position of the number 10 through comparison, and the technical effect of automatic positioning can be realized.
It should be noted that, in the embodiment of the present application, the DSP chip is loaded with a program for comparing the magnitude of the values, and the singlechip is loaded with a program for calculating the distance between the fault occurrence position and the vibration control sensor 5 according to the intensity values, which are all in the prior art, and in the embodiment of the present application, no modification is made, and no description is repeated.
In some other embodiments, the vibration control sensor 5 may be replaced by a sound control sensor according to the actual use requirement, and the fault location on the cable may be located by detecting the sound intensity generated during explosion, because the cable fault is often accompanied by explosion sound and the sound is often accompanied by attenuation of the sound intensity during the propagation, which is not limited herein.
The implementation principle of the auxiliary alarm device for the cable bridge comprises the following steps: through mutual overlapping and use among the vibration control sensor 5 (or the sound control sensor), the DSP chip and the singlechip, the position of the fault on the cable can be positioned when the cable breaks down, so that a fault inspector does not need to inspect the cable section by section according to the cable wiring, the efficiency of the fault inspector in inspecting the cable fault is improved, and the time spent for subsequent maintenance of the circuit is saved; because the signal output part of the singlechip is in signal connection with the display equipment positioned in the power control center, when the cable fails, operators positioned in the power control center can conveniently grasp the failure position of the cable.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. The utility model provides an auxiliary alarm device for a cable bridge, its characterized in that includes cable bridge body (1), be provided with a plurality of fault detection modules according to setting for length interval on cable bridge body (1), a plurality of fault detection module all is provided with the serial number, a plurality of fault detection module all includes:
the fault sensing piece is used for sensing cable faults and outputting fault intensity signals;
the A/D converter is in signal connection with the fault induction piece and is used for receiving the fault intensity signal and outputting an intensity value signal;
the signal output ends of the A/D converters are in signal connection with a data processing module, the data processing module receives the intensity value signals and compares the intensity value signals, the data processing module outputs the number of the fault detection module closest to the fault position of the cable as a closest number signal, the distance between the closest fault detection module and the fault position of the cable as a fault distance signal and the direction of the fault position of the cable relative to the fault detection module closest to the fault position as a fault direction signal;
the signal output end of the data processing module is in signal connection with display equipment of the power control center, and the display equipment receives and displays the nearest number signal, the fault distance signal and the fault direction signal.
2. The cable tray auxiliary alarm device according to claim 1, wherein the fault sensing member comprises:
the vibration control sensor (5) is fixedly connected with the inner side wall of the cable bridge body (1) and is used for detecting the explosion vibration intensity sensed by the corresponding section and outputting a vibration intensity sensing signal;
the signal output ends of the vibration control sensors (5) are connected with the A/D converter through signals, and the A/D converter receives the vibration intensity sensing signals and outputs vibration intensity value signals as fault intensity signals.
3. The cable tray auxiliary alarm device according to claim 1, wherein the fault sensing member comprises:
the sound control sensor is fixedly connected with the inner side wall of the cable bridge body (1) and is used for detecting the strength of fault sound sensed by the corresponding section and outputting a sound intensity sensing signal;
the signal output ends of the sound control sensors are connected with the A/D converter through signals, and the A/D converter receives the sound intensity induction signals and outputs sound intensity value signals as fault intensity signals.
4. The cable tray auxiliary alarm device according to claim 2, wherein the data processing module comprises:
the DSP chip is in signal connection with the A/D converters and is used for receiving the vibration intensity value signals, outputting the number of the fault detection module closest to the fault point as the closest number signal, outputting the number of the fault detection module closest to the fault point as a second near number signal and outputting the maximum vibration intensity value signal;
the singlechip is in signal connection with the DSP chip and is used for receiving the nearest serial number signal and the second nearest serial number signal, outputting the fault direction signal, receiving the maximum vibration intensity value signal and outputting the distance between the fault position and the nearest fault detection module.
5. The auxiliary alarm device for the cable bridge according to claim 2, wherein a mounting groove (4) is formed in the inner side wall of the cable bridge, the vibration control sensor (5) is embedded and mounted in the mounting groove (4), and sensing ends of the vibration control sensor (5) are all arranged towards the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321118256.3U CN220290299U (en) | 2023-05-10 | 2023-05-10 | Auxiliary alarm device for cable bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321118256.3U CN220290299U (en) | 2023-05-10 | 2023-05-10 | Auxiliary alarm device for cable bridge |
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| Publication Number | Publication Date |
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| CN220290299U true CN220290299U (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321118256.3U Active CN220290299U (en) | 2023-05-10 | 2023-05-10 | Auxiliary alarm device for cable bridge |
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| CN (1) | CN220290299U (en) |
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2023
- 2023-05-10 CN CN202321118256.3U patent/CN220290299U/en active Active
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