CN204855687U - Cable fault detection device in pit based on STM32 - Google Patents
Cable fault detection device in pit based on STM32 Download PDFInfo
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- CN204855687U CN204855687U CN201520631903.XU CN201520631903U CN204855687U CN 204855687 U CN204855687 U CN 204855687U CN 201520631903 U CN201520631903 U CN 201520631903U CN 204855687 U CN204855687 U CN 204855687U
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- Locating Faults (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model provides a cable fault detection device in pit based on STM32 belongs to power transmission fault detection field in the pit, including STM32 main control unit, two export power supply module, cable information detection module, reactive compensation module, early warning module and the artifical module of overhauing, two export power supply modules include switching power supply, the last electric starting circuit of LR8, muscle gilled radiator and TL431 shunt voltage regulator, cable information detection module includes the short circuit and opens circuit detector, temperature sensor, current detection appearance and humidity transducer, the reactive compensation module adopts the SVG based on automatic compensation, the early warning module includes double LCD, video monitoring and acousto -optic warning, the artifical module of overhauing includes that waterproof type protects insulating cover and maintenance repair outward. The utility model discloses cable fault reason and position in the pit can be accurately detected out, wide use in power transmission system in the pit is fit for.
Description
Technical field
The utility model belongs to down-hole power transmission fault detection field, is specifically related to a kind of downhole cable failure detector based on STM32.
Background technology
Increasing along with coal mining amount, in down-hole power transmission system, electric load sharply increases, the thing followed is the frequent appearance of downhole cable fault, comprises the phenomenons such as power-off cable is pounded in coal cinder landing, high temperature burns out, excess current is melted, cable insulation damage layer, cable infiltration electric leakage.
Such as, on January 5th, 2010, there is downhole cable firing accident in colliery, Jiangxi Province one, 12 workmans are all wrecked, trace it to its cause, and is because downhole cable is aging, causes insulation course to destroy, causes seep water short circuit and breaking out of fire; On March 15th, 2010, Dongxing, Zhengzhou City Henan Province coal industry company limited cable catches fire because of cable localized hyperthermia, causes 25 employee's death; On July 19th, 2010, Hancheng City little Nan ditch colliery causes downhole cable firing accident together because transport vehicle hangs up cable, and 28 down-hole employees are all wrecked.
Downhole cable firing accident is enough to the attention causing us frequently, in order to can Timeliness coverage downhole cable fault, break away from firing accident, must invent a kind of can the failure detector of detection streamer temperature, humidity, current value, breakpoint and location of short circuit well.
Summary of the invention
The purpose of this utility model is to provide a kind of downhole cable failure detector based on STM32, for detecting downhole cable temperature, humidity, current value, breakpoint and location of short circuit, improving downhole cable fault-detecting ability, realizing Intelligent Measurement.
In order to achieve the above object, the technical scheme that the utility model adopts is:
Based on a downhole cable failure detector of STM32, comprise STM32 master controller, described STM32 master controller connect dual output power module, cable information detection module, reactive compensation module, warning module and manually overhaul module; Described dual output power module adopts Switching Power Supply, and described Switching Power Supply comprises LR8 electrifying startup circuit, muscle gilled radiator and TL431 shunt regulator; Described cable information detection module comprises short circuit and open circuit detector, temperature sensor, current detecting instrument and humidity sensor; Described reactive compensation module adopts the static reacance generator based on auto-compensation; Described warning module comprises liquids double-rows crystal display, video monitoring and sound and light alarm; Described artificial maintenance module comprises outside water proof type protects insulation sleeve and maintenance repair.
Described LR8 electrifying startup circuit is used for providing DC voltage, ensures that Switching Power Supply normally starts, described TL431 shunt regulator is used for continuous regulation output voltage, can realize power consumption dynamic conditioning, described short circuit and open circuit detector adopt HJ13LA1012 short circuit and open circuit detector, breakpoint and location of short circuit is pounded for what detect downhole transmitted cable, described temperature sensor is used for detection streamer temperature, mounting distance is 100 meters, described current detecting instrument adopts PMC35A type current detecting instrument, for the electric current in detection streamer, described humidity sensor is used for detection streamer ambient humidity, light and temperature, mounting distance is 200 meters, when detected temperatures value exceeds setting value, start the cooling fin and ventilation radiator that are arranged on around cable, when detecting electric current and exceeding setting value, automatic control power switch pipe turns off, prevent from burning out instrument, when detecting humidity and exceeding setting value, start the anti-seepage device being arranged on cable surface, the described static reacance generator based on auto-compensation adopts BJS500/1140 type Flameproof intrinsically safe static reacance generator, for reducing line loss, improves the quality of power supply, reduces the generation of heat, described liquids double-rows crystal display adopts 12864 liquid crystal display, and first row is for showing detected temperatures value, and second row detects breakpoint and location of short circuit for showing.
The utility model beneficial effect is compared with prior art embodied in:
The utility model adopts STM32 master controller, reduces external device, ensure that the stability of system and the accuracy of control; Adopt muscle gilled radiator, the radiating effect of power supply can be improved; Adopt TL431 shunt regulator, dual output can be realized; Employing short circuit in parallel and open circuit detector, temperature sensor, current detecting instrument and humidity sensor, can realize comprehensive detection and the early warning of downhole cable equipment failure; Adopt BJS500/1140 type Flameproof intrinsically safe static reacance generator, both can reduce line loss, reduce heat, the safe operation of whole device can be ensured again; Adopt 12864 liquid crystal display, can monitoring cable temperature in real time, and accurately can find out fault position occurs.In the downhole cable testing of equipment of reality, Systematical control is stablized, and detects accurately, can realize the comprehensive detection of cable machinery, be adapted at promoting the use in down-hole power transmission system.
Accompanying drawing explanation
Fig. 1 is a kind of downhole cable failure detector the general frame based on STM32 of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1, a kind of downhole cable failure detector based on STM32, comprises STM32 master controller, described STM32 master controller connects dual output power module, cable information detection module, reactive compensation module, warning module and manually overhauls module, described dual output power module adopts Switching Power Supply, described Switching Power Supply comprises LR8 electrifying startup circuit, muscle gilled radiator and TL431 shunt regulator, described LR8 electrifying startup circuit is used for providing DC voltage, ensure that Switching Power Supply normally starts, described TL431 shunt regulator is used for continuous regulation output voltage, can realize power consumption dynamic conditioning, described cable information detection module comprises short circuit and open circuit detector, temperature sensor, current detecting instrument and humidity sensor, described short circuit and open circuit detector adopt HJ13LA1012 short circuit and open circuit detector, breakpoint and location of short circuit is pounded for what detect downhole transmitted cable, described temperature sensor is used for detection streamer temperature, mounting distance is 100 meters, described current detecting instrument adopts PMC35A type current detecting instrument, for the electric current in detection streamer, described humidity sensor is used for detection streamer ambient humidity, light and temperature, mounting distance is 200 meters, when detected temperatures value exceeds setting value, start the cooling fin and ventilation radiator that are arranged on around cable, when detecting electric current and exceeding setting value, automatic control power switch pipe turns off, prevent from burning out instrument, when detecting humidity and exceeding setting value, start the anti-seepage device being arranged on cable surface, described reactive compensation module adopts the static reacance generator based on auto-compensation, the described static reacance generator based on auto-compensation adopts BJS500/1140 type Flameproof intrinsically safe static reacance generator, for reducing line loss, improve the quality of power supply, reduce the generation of heat, described warning module comprises liquids double-rows crystal display, video monitoring and sound and light alarm, and described liquids double-rows crystal display adopts 12864 liquid crystal display, and first row is for showing detected temperatures value, and second row detects breakpoint and location of short circuit for showing, described artificial maintenance module comprises outside water proof type protects insulation sleeve and maintenance repair.
Claims (5)
1. based on a downhole cable failure detector of STM32, comprise STM32 master controller, described STM32 master controller connect dual output power module, cable information detection module, reactive compensation module, warning module and manually overhaul module; Described dual output power module adopts Switching Power Supply, and described Switching Power Supply comprises LR8 electrifying startup circuit, muscle gilled radiator and TL431 shunt regulator; Described cable information detection module comprises short circuit and open circuit detector, temperature sensor, current detecting instrument and humidity sensor; Described reactive compensation module adopts the static reacance generator based on auto-compensation; Described warning module comprises liquids double-rows crystal display, video monitoring and sound and light alarm; Described artificial maintenance module comprises outside water proof type protects insulation sleeve and maintenance repair.
2. a kind of downhole cable failure detector based on STM32 according to claim 1, is characterized in that: described LR8 electrifying startup circuit is used for providing DC voltage, ensures that Switching Power Supply normally starts; Described TL431 shunt regulator is used for continuous regulation output voltage, can realize power consumption dynamic conditioning.
3. a kind of downhole cable failure detector based on STM32 according to claim 1, it is characterized in that: described short circuit and open circuit detector adopt HJ13LA1012 short circuit and open circuit detector, pound breakpoint and location of short circuit for what detect downhole transmitted cable; Described temperature sensor is used for detection streamer temperature, and mounting distance is 100 meters; Described current detecting instrument adopts PMC35A type current detecting instrument, for the electric current in detection streamer; Described humidity sensor is used for detection streamer ambient humidity, light and temperature, mounting distance is 200 meters, when detected temperatures value exceeds setting value, start the cooling fin and ventilation radiator that are arranged on around cable, when detecting electric current and exceeding setting value, automatically control power switch pipe and turn off, prevent from burning out instrument, when detecting humidity and exceeding setting value, start the anti-seepage device being arranged on cable surface.
4. a kind of downhole cable failure detector based on STM32 according to claim 1, it is characterized in that: the described static reacance generator based on auto-compensation adopts BJS500/1140 type Flameproof intrinsically safe static reacance generator, for reducing line loss, improve the quality of power supply, reduce the generation of heat.
5. a kind of downhole cable failure detector based on STM32 according to claim 1, it is characterized in that: described liquids double-rows crystal display adopts 12864 liquid crystal display, first row is for showing detected temperatures value, and second row detects breakpoint and location of short circuit for showing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520631903.XU CN204855687U (en) | 2015-08-19 | 2015-08-19 | Cable fault detection device in pit based on STM32 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520631903.XU CN204855687U (en) | 2015-08-19 | 2015-08-19 | Cable fault detection device in pit based on STM32 |
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| Publication Number | Publication Date |
|---|---|
| CN204855687U true CN204855687U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520631903.XU Expired - Fee Related CN204855687U (en) | 2015-08-19 | 2015-08-19 | Cable fault detection device in pit based on STM32 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652150A (en) * | 2015-12-30 | 2016-06-08 | 大同煤矿集团有限责任公司 | Downhole portable illuminating line fault analyzer and use method thereof |
| CN109342879A (en) * | 2018-09-30 | 2019-02-15 | 国网浙江慈溪市供电有限公司 | A kind of distribution line on-line monitoring of cable system |
| CN110286208A (en) * | 2019-07-01 | 2019-09-27 | 贵州大学 | One kind being used for the tendentious detection device of spontaneous combustion of coal seam |
-
2015
- 2015-08-19 CN CN201520631903.XU patent/CN204855687U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652150A (en) * | 2015-12-30 | 2016-06-08 | 大同煤矿集团有限责任公司 | Downhole portable illuminating line fault analyzer and use method thereof |
| CN105652150B (en) * | 2015-12-30 | 2018-06-12 | 大同煤矿集团有限责任公司 | Downhole portable illuminating line fault analysis instrument and application method |
| CN109342879A (en) * | 2018-09-30 | 2019-02-15 | 国网浙江慈溪市供电有限公司 | A kind of distribution line on-line monitoring of cable system |
| CN110286208A (en) * | 2019-07-01 | 2019-09-27 | 贵州大学 | One kind being used for the tendentious detection device of spontaneous combustion of coal seam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160819 |
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| CF01 | Termination of patent right due to non-payment of annual fee |