CN111443304B - Grounding wire status warning device - Google Patents
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- CN111443304B CN111443304B CN202010383208.1A CN202010383208A CN111443304B CN 111443304 B CN111443304 B CN 111443304B CN 202010383208 A CN202010383208 A CN 202010383208A CN 111443304 B CN111443304 B CN 111443304B
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- 239000004020 conductor Substances 0.000 claims description 27
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- 230000001939 inductive effect Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
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- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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Abstract
The invention discloses a grounding wire state early warning device which comprises a wire end state sensor and a grounding pile state sensor, wherein the wire end state sensor is arranged at the top of a hook part; the wire end state sensor and the grounding pile state sensor are respectively connected with the safety prompter and send state signals to the safety prompter. The device collects the hanging and dismantling actions of the grounding wire through the research action sensing device, solves the timeliness of early warning and enables the early warning to achieve passive reminding.
Description
Technical Field
The invention belongs to the field of high-voltage overhaul, and particularly relates to a grounding wire state early warning device.
Background
When an electric power overhauling staff works, if the electric power overhauling staff does not operate according to a safety regulation, the fault hanging or the fault dismantling of the grounding wire can cause safety accidents, and serious loss is caused for the overhauling work and even the life safety of the staff is endangered.
Most of the existing error prevention technologies need active prevention by personnel, and passive prevention cannot be achieved. Or the early warning is too late to realize instant early warning. And then the ground wire tools are replaced, so that the safety and error prevention functions of the stored ground wires cannot be achieved.
For example, by installing an RFID tag on the ground wire, and performing security verification by reading the tag before the hooking operation, this mode is an active awareness, and the operation security is not passive depending on the awareness of the operator.
For example, the sensing device is built into the insulating rod through the improvement of the grounding wire structure, and the technical scheme requires the updating of the grounding wire tool and cannot perform safety error-prevention early warning on the existing grounding wire.
Disclosure of Invention
The application designs a ground wire state early warning device aiming at the problems in the background technology, and aims to ensure that when an maintainer works, the early warning device judges whether the operation is in compliance or not according to a receiving signal based on the structural specificity of the early warning device and the necessary operation of the early warning device directly triggers signal transmission.
The technical scheme is as follows:
the grounding wire state early warning device comprises a wire end state sensor and a grounding pile state sensor, wherein the wire end state sensor is arranged at the top of a hook part, the grounding pile state sensor is arranged on a grounding pile, and the bottom of the hook part is connected to the grounding pile through a grounding cable; the wire end state sensor and the grounding pile state sensor are respectively connected with the safety prompter and send state signals to the safety prompter.
Preferably, the wire end state sensor comprises a shell, wherein an inductive switch module, a power module and an MCU communication module are arranged in the shell, and the inductive switch module is controlled to be switched on and off by a poking probe extending out of the bottom of the inductive switch module; the hook part comprises a hook, a compression block and an adjusting rod, the compression block is arranged at the end part of the adjusting rod, and the adjusting rod is in threaded connection with the hook and drives the compression block to vertically move up and down; when the inductive switch module is in an open circuit state, the toggle probe is sealed at the opening of the hook; when the hook is connected with the conductor to be grounded, the conductor to be grounded pushes the poking probe to move towards the inner side of the hook, so that the passage of the inductive switch module is realized, and the state sensor at the end of the wire is triggered to work and send a state signal.
Preferably, the shell consists of a bottom plate and side plates arranged on two sides of the bottom plate, and two through holes are symmetrically formed in the side plates; the bottoms of the two side edges of the shell are symmetrically provided with a single row of screw holes respectively, and the distance between the adjacent screw holes is consistent with the distance between the two through holes; two bolts penetrate through the through holes and are screwed into adjacent screw holes of the side plates, so that the lead end state sensor is fixed with the hook parts of different types.
Preferably, the shell is of a split structure at two sides, and is separated or fixed through a buckle.
Preferably, the safety prompter is an independent component and comprises a wireless receiving module, a power module, a TTS text-to-speech module, a mobile network communication module and an MCU control module, wherein the wireless receiving module is connected with the MCU control module and transmits signals of the ground wire state sensor to the MCU control module; after receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not; the MCU control module sends a judging result through the mobile network communication module on one hand, and broadcasts the judging result through the TTS text-to-voice module on the other hand; the ground wire state sensor comprises a ground pile state sensor and a wire end state sensor.
Preferably, the safety prompter is a mobile phone accessory and comprises a wireless receiving module, an MCU control module, a UART-TTL conversion module and a Type-C connector, wherein the wireless receiving module is connected with the MCU control module and transmits signals of the ground wire state sensor to the MCU control module; after receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not; the MCU control module is connected with the mobile phone through the UART-TTL conversion module and the Type-C connector, and voice reminding is carried out by the mobile phone; the ground wire state sensor comprises a ground pile state sensor and a wire end state sensor.
After receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not, and comprises the following steps:
-a step of triggering a ground stake state sensor and sending a wireless signal to a safety prompter when the ground stake is hung on a ground cable;
-a step of the ground stake status sensor sending line information, voltage level to the safety prompter;
-a step of determining whether the ground stake is in a state to be paired;
-a step of triggering a wire end status sensor and sending a wireless signal to a safety reminder when the grounding cable is hooked or detached to the conductor to be grounded;
-a step of the wire end status sensor sending a ground cable voltage level to the safety prompter;
-a step of determining whether the grounding operation is legal;
-an alarm step of the ground cable not being removed when the person leaves the field.
Preferably, the steps are performed in the following order:
S0, a wire end state sensor and a ground pile state sensor send identification information at fixed time, wherein the identification information comprises an ID number of the sensor, the current state of the sensor and voltage information;
S1, a grounding pile is hung on a grounding cable, and a grounding pile state sensor sends a wireless signal to a safety prompter, wherein the wireless signal is grounding pile information;
s2, the safety prompter replies after continuously receiving the signal;
S3, repeatedly sending signals by the grounding pile state sensor for a plurality of times until the safety prompter replies;
s4, the safety prompter records that the grounding piles are in a to-be-paired state;
S5, operating the grounding cable to be connected to a conductor to be grounded in a hanging mode, triggering a conductor end state sensor during the hanging mode, and sending a wireless signal to a safety prompter, wherein the wireless signal is the voltage level of the grounding cable;
S6, the safety prompter compares the wireless signals received by the S1 and the S5, judges whether the operation is illegal or not according to the operation task, and prompts voice;
and S7, judging whether the grounding cable is dismounted or not after the operation is finished.
Preferably, the specific step of the hooking of the S5 is as follows:
s5-1, lifting the hand-held adjusting rod to the vicinity of the conductor to be grounded, so that the opening of the hook is opposite to the conductor to be grounded;
s5-2, the handheld adjusting rod transversely moves, the grounding conductor moves towards the inner side of the hook, and meanwhile, the grounding conductor props against the toggle probe to generate displacement, and the wire end state sensor is triggered to send a wireless signal;
S5-3, rotating the adjusting rod to enable the compressing block to vertically move to compress the conductor to be grounded.
The beneficial effects of the invention are that
The device collects the hanging and dismantling actions of the grounding wire through the research action sensing device, solves the timeliness of early warning and enables the early warning to achieve passive reminding. Simultaneously, the structure of the conventional grounding wire hook is researched, the mounting structure is designed to meet the grounding wires of different specifications, the intelligent early warning function can be realized through simple transformation, the compatibility of products is greatly improved, the safety error prevention function can be realized without replacing the grounding wire hook, and the resource utilization rate is improved by integrating the conventional resources.
Drawings
FIG. 1 is a schematic view of an application scenario of the device
FIG. 2 is a detailed view of the hook portion
FIG. 3 is a detailed view of the structure of the wire end state sensor
FIG. 4 is a detailed view of the housing structure of the wire end state sensor
FIG. 5 is a schematic view showing a structure in which a wire end state sensor is fixed to a hook portion
Detailed Description
The invention is further illustrated below with reference to examples, but the scope of the invention is not limited thereto:
Referring to fig. 1, a ground wire state early warning device comprises a wire end state sensor 1 and a ground pile state sensor 2, wherein the wire end state sensor 1 is arranged at the top of a hook part 3, the ground pile state sensor 2 is arranged on a ground pile 4, and the bottom of the hook part 3 is connected to the ground pile 4 through a ground cable 5; the wire end state sensor 1 and the grounding pile state sensor 2 are respectively connected with a safety prompter 6 and send state signals to the safety prompter.
Referring to fig. 2-3, the wire end state sensor 1 includes a housing 1-5, in which a sensing switch module 1-6, a power module 1-7 and an MCU communication module 1-8 are disposed in the housing 1-5, and the sensing switch module 1-6 is controlled to be turned on and off by a toggle probe 1-4 extending from the bottom thereof; the hook part 3 comprises a hook 3-1, a compression block 3-2 and an adjusting rod 3-3, wherein the compression block 3-2 is arranged at the end part of the adjusting rod 3-3, and the adjusting rod 3-3 is in threaded connection with the hook 3-1 and drives the compression block 3-2 to vertically move up and down; when the inductive switch module 1-6 is in an open circuit state, the toggle probe 1-4 is sealed at the opening of the hook 3-1; when the hook 3-1 is hung on the conductor 7 to be grounded, the conductor 7 to be grounded moves towards the inner side of the hook 3-1 against the toggle probe 1-4, so that a passage of the inductive switch module 1-6 is realized, and the wire end state sensor 1 is triggered to work and send a state signal.
Based on the structural design of the toggle probe 1-4, when the hooking operation is carried out, the fluctuation probe 1-4 can be forced to generate displacement, so that the passage of the inductive switch module 1-6 is triggered, a trigger signal is sent to the safety prompter 6, and the safety prompter 6 matches the operation time and related identification information, so that whether the operation is in compliance or not can be known. The maintainer only needs to carry out the hooking operation, does not need complicated and redundant safety confirmation operation, and can directly obtain the prompt information of whether the operation is in compliance or not.
As a preferred embodiment, the toggle probes 1-4 are internally designed to be of a spring structure, the movable angle is larger than 90 degrees, and the internal structure and the circuit are not affected when the movement amplitude of the probes is huge and the probes are deformed.
The shell 1-5 consists of a bottom plate 1-1 and side plates 1-2 arranged on two sides of the bottom plate 1-1, wherein two through holes 1-10 are symmetrically formed in the side plates 1-2; the bottoms of the two side edges of the shell 1-5 are symmetrically provided with a single row of screw holes 1-3 respectively, and the distance between the adjacent screw holes 1-3 is consistent with the distance between the two through holes 1-10; two bolts 1-11 pass through the through holes 1-10 and are screwed into adjacent screw holes 1-10 of the side plate 1-2, and for the grounding wires with different specifications, the wire end state sensor 1 is fixed with the hook parts 3 with different types by translating the matching positions of the screw holes 1-3 and the through holes 1-10.
As a preferred embodiment, with reference to fig. 2-5, the lower buckle of the base 1-1 has one side with the hook 1-22 and one side with the jackscrew 1-33, so as to support the ground wire hook 3-1 with different thickness.
The housing 1-5 may be of unitary construction; or can be a two-side split structure, and is separated or fixed through a buckle.
As a first embodiment of the safety prompter 6, the safety prompter 6 is an independent component, and comprises a wireless receiving module, a power module, a TTS text-to-speech module, a mobile network communication module and an MCU control module, wherein the wireless receiving module is connected with the MCU control module and transmits signals of the ground pile state sensor and the wire end state sensor to the MCU control module; after receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not; the MCU control module sends a judging result through the mobile network communication module on one hand, and broadcasts the judging result through the TTS text-to-voice module on the other hand; the ground wire state sensor comprises a ground pile state sensor and a wire end state sensor. The trouble that the operator needs to carry a plurality of tools when going out is reduced.
As a second implementation mode of the safety prompter 6, the safety prompter 6 is a mobile phone accessory, and comprises a wireless receiving module, an MCU control module, a UART-to-TTL module and a Type-C connector, wherein the wireless receiving module is connected with the MCU control module and transmits signals of the ground pile state sensor and the wire end state sensor to the MCU control module; after receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not; the MCU control module is connected with the mobile phone through the UART-TTL conversion module and the Type-C connector, and voice reminding is carried out by the mobile phone; the ground wire state sensor comprises a ground pile state sensor and a wire end state sensor.
After receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not, and comprises the following steps:
A step of triggering the ground stake state sensor 2 and sending a wireless signal to the safety prompter 6 when the ground stake 4 is hung on the ground cable 5;
a step of the ground stake status sensor 2 sending line information, voltage level to the safety prompter 6;
a step of judging whether the ground stake 4 is in a state to be paired;
A step of triggering the wire end state sensor 1 and sending a wireless signal to the safety prompter 6 when the grounding cable 5 is hung or detached from the conductor 7 to be grounded;
a step of sending the voltage level of the ground cable 5 to the safety indicator 6 by the wire end status sensor 1;
-a step of determining whether the grounding operation is legal;
An alarm step in which the ground cable 5 is not removed when the person leaves the field.
Preferably, the above steps are performed in the following order:
S0, the lead end state sensor 1 and the ground pile state sensor 2 send identification information at fixed time, wherein the identification information comprises an ID number of the sensor, the current state of the sensor and voltage information;
s1, a grounding pile 4 is hung on a grounding cable 5, and a grounding pile state sensor 2 sends a wireless signal to a safety prompter 6, wherein the wireless signal is information of the grounding pile 4;
s2, the safety prompter 6 replies after continuously receiving the signals;
S3, repeatedly sending signals by the grounding pile state sensor 2 until the safety prompter 6 replies;
S4, the safety prompter 6 records that the grounding piles 4 are in a state to be paired;
s5, the operation grounding cable 5 is hung on a conductor 7 to be grounded, the wire end state sensor 1 is triggered during hanging, and a wireless signal is sent to the safety prompter 6, wherein the wireless signal is the voltage level of the grounding cable;
s6, the safety prompter 6 compares the wireless signals received by the S1 and the S5, judges whether the operation is illegal or not according to the operation task, and prompts voice;
and S7, judging whether the grounding cable 5 is dismounted or not after the operation is finished.
In a preferred embodiment, the step of hooking S5 is as follows:
s5-1, lifting the handheld adjusting rod 3-3 to the vicinity of the conductor 7 to be grounded, and enabling the opening of the hook 3-1 to be opposite to the conductor 7 to be grounded;
S5-2, a handheld adjusting rod 3-3 transversely moves, a to-be-grounded conductor 7 moves towards the inner side of a hook 3-1 and props against a toggle probe 1-4 to generate displacement, and a wire end state sensor 1 is triggered to send a wireless signal;
S5-3, rotating the adjusting rod 3-3 to enable the compressing block 3-2 to vertically move to compress the conductor 7 to be grounded.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be performed by hardware associated with instructions via circuit configurations that may be performed by a single chip or other similarly functioning integrated chip, as is known in the art. The core of the invention is the special structure of the early warning device, and the beneficial effect that the maintainer can learn the warning can be realized based on the special structure. In addition, the local control method, data transmission, identification information comparison and operation legal judgment adopted for realizing the purpose of the invention can be completed through programming in the prior art; the local module connection can be realized by the prior art and is not an innovation point of the invention.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The grounding wire state early warning device is characterized by comprising a wire end state sensor (1) and a grounding pile state sensor (2), wherein the wire end state sensor (1) is arranged at the top of a hook part (3), the grounding pile state sensor (2) is arranged on a grounding pile (4), and the bottom of the hook part (3) is connected to the grounding pile (4) through a grounding cable (5); the wire end state sensor (1) and the grounding pile state sensor (2) are respectively connected with the safety prompter (6) and send state signals to the safety prompter;
The wire end state sensor (1) comprises a shell (1-5), wherein an inductive switch module (1-6), a power module (1-7) and an MCU communication module (1-8) are arranged in the shell (1-5), and the inductive switch module (1-6) is controlled to be switched on and off by a poking probe (1-4) extending out of the bottom of the inductive switch module; the hook part (3) comprises a hook (3-1), a compression block (3-2) and an adjusting rod (3-3), wherein the compression block (3-2) is arranged at the end part of the adjusting rod (3-3), and the adjusting rod (3-3) is in threaded connection with the hook (3-1) and drives the compression block (3-2) to vertically move up and down; when the inductive switch module (1-6) is in an open circuit state, the toggle probe (1-4) is sealed at the opening of the hook (3-1); when the hook (3-1) is hung on the conductor (7) to be grounded, the conductor (7) to be grounded pushes the toggle probe (1-4) to move towards the inner side of the hook (3-1), so that a passage of the inductive switch module (1-6) is realized, and the wire end state sensor (1) is triggered to work to send a state signal;
The safety prompter (6) comprises an MCU control module, and the MCU control module judges whether the operation is safe after receiving the signal of the ground wire state sensor, and comprises the following steps:
-triggering the ground stake state sensor (2) and sending a wireless signal to the safety reminder (6) when the ground stake (4) is hooked to the ground cable (5);
-a step of the ground stake status sensor (2) sending line information, voltage level to the safety prompter (6);
-a step of determining whether the ground stake (4) is in a state to be paired;
-a step of triggering the wire end status sensor (1) and sending a wireless signal to the safety indicator (6) when the grounding cable (5) is hooked to or detached from the conductor (7) to be grounded;
-a step of the wire end status sensor (1) sending the voltage level of the ground cable (5) to the safety indicator (6);
-a step of determining whether the grounding operation is legal;
-an alarm step in which the earth cable (5) is not removed when the person leaves the field;
The steps are performed in the following order:
s0, a wire end state sensor (1) and a ground pile state sensor (2) send identification information at fixed time, wherein the identification information comprises an ID number of the sensor, the current state of the sensor and voltage information;
S1, a grounding pile (4) is hung on a grounding cable (5), and a grounding pile state sensor (2) sends a wireless signal to a safety prompter (6), wherein the wireless signal is information of the grounding pile (4);
s2, the safety prompter (6) replies after continuously receiving the signal;
s3, repeatedly sending signals by the grounding pile state sensor (2) until the safety prompter (6) replies;
S4, the safety prompter (6) records that the grounding piles (4) are in a state to be paired;
S5, operating the grounding cable (5) to be hung on a conductor (7) to be grounded, triggering the conductor end state sensor (1) during hanging, and sending a wireless signal to the safety prompter (6), wherein the wireless signal is the voltage level of the grounding cable;
S6, the safety prompter (6) compares the wireless signals received by the S1 and the S5, judges whether the operation is illegal or not according to the operation task, and prompts voice;
And S7, judging whether the grounding cable (5) is dismounted or not after the operation is finished.
2. The ground wire state early warning device according to claim 1, characterized in that the shell (1-5) is composed of a bottom plate (1-1) and side plates (1-2) arranged on two sides of the bottom plate (1-1), and two through holes (1-10) are symmetrically formed in the side plates (1-2); the bottoms of the two side edges of the shell (1-5) are symmetrically provided with a single row of screw holes (1-3), and the distance between the adjacent screw holes (1-3) is consistent with the distance between the two through holes (1-10); two bolts (1-11) pass through the through holes (1-10) and are screwed into adjacent screw holes (1-3) of the side plate (1-2).
3. The ground wire state early warning device according to claim 1, characterized in that the housing (1-5) is of a two-sided split type structure, separated or fixed by a buckle.
4. The ground wire state early warning device according to claim 1, characterized in that the safety prompter (6) is an independent component and comprises a wireless receiving module, a power supply module, a TTS text-to-speech module, a mobile network communication module and an MCU control module, wherein the wireless receiving module is connected with the MCU control module and transmits signals of the ground wire state sensor to the MCU control module; after receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not; the MCU control module sends a judging result through the mobile network communication module on one hand, and broadcasts the judging result through the TTS text-to-voice module on the other hand; the ground wire state sensor comprises a ground pile state sensor and a wire end state sensor.
5. The ground wire state early warning device according to claim 1, characterized in that the safety prompter (6) is a mobile phone accessory and comprises a wireless receiving module, an MCU control module, a UART-TTL (universal asynchronous receiver transmitter) module and a Type-C connector, wherein the wireless receiving module is connected with the MCU control module and transmits signals of a ground wire state sensor to the MCU control module; after receiving the signal of the ground wire state sensor, the MCU control module judges whether the operation is safe or not; the MCU control module is connected with the mobile phone through the UART-TTL conversion module and the Type-C connector, and voice reminding is carried out by the mobile phone; the ground wire state sensor comprises a ground pile state sensor and a wire end state sensor.
6. The ground wire state early warning device according to claim 1, wherein the step of S5 of hooking is as follows:
S5-1, lifting a handheld adjusting rod (3-3) to the vicinity of the conductor (7) to be grounded, so that the opening of the hook (3-1) is just opposite to the conductor (7) to be grounded;
S5-2, a handheld adjusting rod (3-3) transversely moves, a to-be-grounded conductor (7) moves towards the inner side of the hook (3-1) and props against the toggle probe (1-4) to generate displacement, and a wire end state sensor (1) is triggered to send a wireless signal;
s5-3, rotating the adjusting rod (3-3) to enable the compressing block (3-2) to vertically move to compress the conductor (7) to be grounded.
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| CN202010383208.1A CN111443304B (en) | 2020-05-08 | 2020-05-08 | Grounding wire status warning device |
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| CN112196896B (en) * | 2020-10-10 | 2021-11-19 | 珠海格力电器股份有限公司 | Magnetic suspension control method, system, controller and storage medium |
| CN114577382B (en) * | 2022-04-07 | 2024-01-23 | 国网江苏省电力有限公司超高压分公司 | Overhead line grounding wire sequential assembling and disassembling protection device and use method |
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| CN212459995U (en) * | 2020-05-08 | 2021-02-02 | 国网江苏省电力有限公司镇江供电分公司 | Ground wire state early warning device |
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| CN102801001A (en) * | 2011-05-27 | 2012-11-28 | 广西鑫百纳电气有限公司 | Management system for temporary grounding wire |
| KR20170031899A (en) * | 2015-09-14 | 2017-03-22 | (주)케이엠에스 | Safety hook for determining correct installation on safety harness and fixation of hook to support rope and safety harness apparatus using the same |
| CN110850332A (en) * | 2019-11-20 | 2020-02-28 | 深圳市奇辉电气有限公司 | Trend statistical type grounding body monitoring method and device |
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