CN108155038B - Electrical cabinet electricity inspection misoperation prevention system - Google Patents
Electrical cabinet electricity inspection misoperation prevention system Download PDFInfo
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- CN108155038B CN108155038B CN201710672982.2A CN201710672982A CN108155038B CN 108155038 B CN108155038 B CN 108155038B CN 201710672982 A CN201710672982 A CN 201710672982A CN 108155038 B CN108155038 B CN 108155038B
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- 230000005611 electricity Effects 0.000 title claims abstract description 73
- 238000007689 inspection Methods 0.000 title claims abstract description 40
- 230000002265 prevention Effects 0.000 title claims abstract description 17
- 230000006854 communication Effects 0.000 claims abstract description 56
- 238000004891 communication Methods 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000013475 authorization Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 24
- 238000012360 testing method Methods 0.000 claims description 14
- 238000000819 phase cycle Methods 0.000 claims description 12
- 238000013500 data storage Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- Selective Calling Equipment (AREA)
Abstract
The invention relates to the technical field of electric power and electricity, in particular to an electric cabinet electricity inspection misoperation prevention system. The electrical cabinet electricity-checking anti-misoperation system comprises a current sensor, an anti-misoperation host, an electronic key and an electronic anti-misoperation lock; the anti-misoperation host computer is in real-time wireless connection with the electronic key through the wireless real-time communication unit, so that the electronic key can receive unlocking and locking information transmitted by the anti-misoperation host computer in real time, and when the anti-misoperation host computer detects electrification, a locking information instruction can be immediately sent to the electronic key, and the electronic key can not unlock the electronic anti-misoperation lock; thus, the error-preventing host machine automatically judges whether to authorize the key to unlock according to the electrification condition of the line; after the unlocking instruction is authorized, the host computer terminates the unlocking authorization in real time through wireless communication in the unlocking process, so that the safety can be ensured, the safety and reliability of operation can be greatly improved, and the personal injury of operators can be avoided.
Description
Technical Field
The invention relates to the technical field of electric power and electricity, in particular to an electric cabinet electricity inspection misoperation prevention system.
Background
Currently, in the field of power distribution networks, electric five-prevention means: preventing the wrong disconnection and disconnection of the breaker, the load switch and the contactor; the on-load separation switch is prevented; the grounding switch is prevented from being turned on by mistake when the power is on; the circuit breaker and the load switch are prevented from being closed when the grounding switch is in the closed position; preventing erroneous entering into the charging chamber. The electric five-prevention requires that the cabinet door cannot be opened under the condition of high voltage electrification, and the cabinet door must be forcedly locked to prevent misoperation.
In order to meet the above requirements, the conventional design is to install an electrified display and an electromagnetic lock on a cabinet door; a sensor is arranged on a high-voltage wire in an electrical cabinet, high voltage is converted into a low-voltage signal, the high-voltage electrification condition is displayed through an electrification display, then whether an electromagnetic lock is allowed to be opened or not is determined manually according to whether the high voltage exists or not, and a power supply of the used electromagnetic lock is powered by a voltage transformer (PT).
However, in the prior art, safety accidents caused by high temperature or short circuit electrification and the like in the line operation process can also occur, the electrified display is not lightened due to faults, and the electromagnetic lock is not powered, so that great potential safety hazards can be caused if the door is opened by forced unlocking; in addition, although the existing electronic key unlocking can improve the unlocking reliability, if the electronic key receives an authorized unlocking command, if the circuit is accidentally incoming in the unlocking process, the five-prevention requirement is violated if the unlocking is continued at the moment, and the safety accident is caused, so the existing electricity-checking unlocking technology still has the problems of unreliable use and potential safety hazard.
With the requirements of urban and rural intelligent power distribution network construction and transformation, higher requirements are put forward on the safety and reliability of the ring main unit, and therefore, aiming at the defects, the invention provides an electrical cabinet electricity inspection misoperation prevention system.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide a safe and reliable electrical cabinet electricity inspection misoperation prevention system for preventing misoperation of an electrical cabinet.
(II) technical scheme
In order to solve the technical problems, the invention provides an electrical cabinet electricity-checking anti-misoperation system, which comprises a current sensor, an anti-misoperation host, an electronic key and an electronic anti-misoperation lock; the current sensor is arranged at a high-voltage wire band-pass electricity detection position in the electric cabinet, and the electronic misoperation prevention lock is arranged at an misoperation prevention opening position of the electric cabinet; the current sensor is connected with the anti-misoperation electricity checking host to transmit the electrified information of the high-voltage wire to the anti-misoperation electricity checking host in real time, and the anti-misoperation electricity checking host receives the electrified information and forms a pairing signal and unlocking and locking information; the electronic key is matched with the anti-misoperation electricity checking host, is used for reading the pairing signal in the anti-misoperation electricity checking host or receiving unlocking and locking information transmitted by the anti-misoperation electricity checking host, and is matched with the electronic anti-misoperation phase lock, and is used for transmitting the pairing signal or the unlocking and locking information to the electronic anti-misoperation lock; the anti-misoperation host computer is in instant wireless connection with the electronic key through the wireless real-time communication unit, and the electronic key receives the unlocking and locking information transmitted by the anti-misoperation host computer in instant.
The anti-misoperation electricity inspection host comprises a processing control unit and a display unit which are connected, wherein the temperature sensor and the current sensor are connected with the processing control unit, and the temperature sensor is arranged near a high-voltage wire in an electric cabinet so as to detect temperature information of the wire in real time and transmit the temperature information to the processing control unit, and the processing control unit transmits the temperature information and the electrified information to the display unit.
The anti-misoperation electricity inspection host also comprises a fault alarming unit and an RS485 interface which are connected with the processing control unit, wherein the processing control unit transmits current temperature fault information to a communication terminal through the RS485 interface, and the communication terminal is associated with a mobile phone.
The anti-misoperation electricity testing host also comprises a data storage unit connected with the processing control unit, wherein the data storage unit is used for storing opening and closing information, current fault information and temperature fault information.
The current sensor comprises a grounding sensor and a phase sequence sensor, wherein the grounding sensor is arranged at the grounding switch, and the phase sequence sensor is arranged on a phase sequence high-voltage wire; the current sensor is an adaptive current sensor.
The display unit comprises a display screen and an indicator lamp, wherein the indicator lamp comprises a high-voltage indicator lamp and a fault indicator lamp, the high-voltage indicator lamp is lightened in a charged state, and the display screen displays an electric mark; when the current or the temperature is abnormal, the fault indicator lights up, and the display screen displays fault identification.
The anti-misoperation electricity inspection host is internally provided with a wireless real-time communication unit, and the wireless real-time communication unit is a radio frequency antenna so as to support 433MHz wireless communication.
The electronic key comprises a power supply module, a key control module and an electricity checking connector which are connected in sequence, wherein the electricity checking connector is matched with an electricity checking interface of the error checking prevention host; the electronic key is internally provided with a wireless real-time communication unit, and the key control module is connected with the wireless real-time communication unit in the electronic key so as to receive unlocking and locking information sent by the wireless real-time communication unit in the anti-misoperation host in real time.
The key control module is a pairing control unit or an unlocking control unit, the pairing control unit is connected with the power module and the electrical inspection connector, so that the anti-misoperation electrical inspection host is paired with the electronic anti-misoperation lock, the unlocking control unit is connected with the power module and the electrical inspection connector, and the electronic key is used for receiving unlocking and locking information of the anti-misoperation electrical inspection host and transmitting the unlocking and locking information to the electronic anti-misoperation lock.
The electronic key further comprises a display module and an alarm module, and the display module and the alarm module are connected with the key control module.
(III) beneficial effects
The technical scheme of the invention has the following advantages: the anti-misoperation electricity testing host provided by the invention can obtain the information of whether the high-voltage wire in the electric cabinet is electrified or not and the current fault through the current sensor, so as to judge whether the electric cabinet can be unlocked or not; the electronic key is matched with the anti-misoperation host computer and the electronic anti-misoperation lock respectively, on one hand, the information code (namely the pairing signal) of the anti-misoperation host computer can be read, then the electronic anti-misoperation lock is inserted, so that the anti-misoperation host computer and the electronic anti-misoperation lock can be arbitrarily paired, on the other hand, after the anti-misoperation host computer and the electronic anti-misoperation lock are paired, the electronic key is inserted into the anti-misoperation host computer for communication verification, the electronic key can receive unlocking instruction information transmitted by the anti-misoperation host computer, when no high-voltage electrification and no current fault exist in the high-voltage power distribution cabinet, the electronic key obtains an unlocking instruction, and then the electronic key is inserted into the electronic anti-misoperation lock for communication verification, so that unlocking is realized; when a high-voltage electrified current fault exists in the high-voltage power distribution cabinet, the electronic key cannot receive an unlocking instruction (or a locking instruction is received), and unlocking is terminated; particularly, the anti-misoperation host computer is in real-time wireless connection with the electronic key through the wireless real-time communication unit, so that the electronic key can receive unlocking and locking information transmitted by the anti-misoperation host computer in real time, and when the anti-misoperation host computer detects electrification, a locking information instruction can be immediately sent to the electronic key, and the electronic key can not unlock the electronic anti-misoperation lock; thus, the error-preventing host machine automatically judges whether to authorize the key to unlock according to the electrification condition of the line; after the unlocking instruction is authorized, the host computer terminates the unlocking authorization in real time through wireless communication in the unlocking process, so that the safety can be ensured, the safety and reliability of operation can be greatly improved, and the personal injury of operators can be avoided.
Drawings
FIG. 1 is a schematic perspective view of an electrical cabinet electroscopic and anti-misoperation system according to the embodiment of the invention;
FIG. 2 is a diagram of the connection relationship between components of an anti-false proof electricity test host in an embodiment of the present invention;
FIG. 3 is a schematic diagram of the connection between a processing control unit and a sensor in an anti-false electricity test host;
FIG. 4 is a diagram showing the connection relationship between components of an electronic key according to an embodiment of the present invention;
FIG. 5 is a structural diagram of an electronic anti-false lock according to an embodiment of the present invention;
Fig. 6 is a structural relationship diagram of another electronic anti-misoperation lock in the embodiment of the invention.
In the figure, 1: a current sensor; 2: anti-misoperation electricity testing host; 3: an electronic key; 4: electronic anti-misoperation lock; 5: a wireless real-time communication unit; 6: a temperature sensor; 21: an electricity testing interface; 22: a display screen; 31: an electricity testing joint; 32: a display lamp; 33: a charging interface; 40: a linkage member; 41: a key interface; 42: a lock body; 43: a reset lever; 44: a linkage stop block; 45: a travel switch; 46: self-holding electromagnet; 47: a return spring; 48: a control circuit; 49: a U-shaped lock rod; 13: a hook section; 14: and the clamping piece.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1, 2 and 3, the electrical cabinet electricity-checking anti-misoperation system provided by the embodiment of the invention comprises a current sensor 1, an anti-misoperation host 2, an electronic key 3 and an electronic anti-misoperation lock 4; the current sensor 1 is arranged at a high-voltage wire live information detection position in the electric cabinet, and the electronic misoperation prevention lock 4 is arranged at an misoperation prevention opening position of the electric cabinet; the current sensor 1 is connected with the anti-misoperation electricity checking host 2 so as to transmit the electrified information of the high-voltage wire to the anti-misoperation electricity checking host in real time, and the anti-misoperation electricity checking host 2 receives the electrified information and forms a pairing signal and unlocking and locking information; the electronic key 3 is matched with the anti-misoperation electricity inspection host 2 and is used for reading the pairing signal in the anti-misoperation electricity inspection host 2 or receiving unlocking and locking information transmitted by the anti-misoperation electricity inspection host 2, and the electronic key 3 is matched with the electronic anti-misoperation lock 4 and is used for transmitting the pairing signal or the unlocking and locking information to the electronic anti-misoperation lock 4; the anti-misoperation electricity testing host machine 2 is in real-time wireless connection with the electronic key 3 through the wireless real-time communication unit 5, and the electronic key receives the unlocking and locking information transmitted by the anti-misoperation electricity testing host machine 2 in real time.
In the embodiment, the anti-misoperation electricity checking host can obtain information of whether the high-voltage wire in the electric cabinet is electrified or not and whether the electric cabinet is in current failure or not through the current sensor, so that whether unlocking can be achieved or not can be judged; the electronic key 3 is respectively matched with the anti-misoperation host 2 and the electronic anti-misoperation lock 4, on one hand, the information code (i.e. the pairing signal) of the anti-misoperation host 2 can be read, then the electronic anti-misoperation lock 4 is inserted, so that arbitrary pairing of the anti-misoperation host 2 and the electronic anti-misoperation lock 4 is realized, on the other hand, after the anti-misoperation host 2 and the electronic anti-misoperation lock 4 are paired, the electronic key 3 is inserted into the anti-misoperation host 2 for communication verification, the electronic key 3 can receive unlocking instruction information transmitted by the anti-misoperation host 2, when no high-voltage electrified no-current fault exists in the high-voltage power distribution cabinet, the electronic key 3 acquires an unlocking instruction, and then the electronic key 3 is inserted into the electronic anti-misoperation lock 4 for communication verification, so that unlocking is realized; when a high-voltage electrified current fault exists in the high-voltage power distribution cabinet, the electronic key 3 cannot receive an unlocking instruction (or a locking instruction is received), and unlocking is terminated; particularly, the anti-misoperation host computer is in real-time wireless connection with the electronic key through the wireless real-time communication unit, so that the electronic key can receive unlocking and locking information transmitted by the anti-misoperation host computer 2 in real time, when the anti-misoperation host computer detects electrification, a standing horse can send a locking information instruction to the electronic key, and the electronic key can not unlock the electronic anti-misoperation lock; thus, the error-preventing host machine automatically judges whether to authorize the key to unlock according to the electrification condition of the line; after the unlocking instruction is authorized, the host computer terminates the unlocking authorization in real time through wireless communication in the unlocking process, so that the safety can be ensured, the safety and reliability of operation can be greatly improved, and the personal injury of operators can be avoided.
Further, the anti-misoperation electricity inspection host comprises a processing control unit and a display unit which are connected, wherein the temperature sensor and the current sensor are connected with the processing control unit, and the temperature sensor is arranged near a high-voltage wire in the electric cabinet so as to detect temperature information of the wire in real time and transmit the temperature information to the processing control unit, and the processing control unit transmits the temperature information and the electrified information to the display unit. And the current temperature information received by the anti-misoperation host computer is displayed on the display unit in real time.
Specifically, the anti-misoperation electricity inspection host also comprises a fault alarm unit and an RS485 interface which are connected with the processing control unit, the processing control unit transmits current temperature fault information to the communication terminal through the RS485 interface, the communication terminal is associated with the mobile phone, after fault alarm occurs, fault elimination is performed through inspection, and at the moment, the reset operation can be manually performed through a remote reset port.
Specifically, the display unit includes a display screen 22 and an indicator light, where the indicator light includes a high voltage indicator light and a fault indicator light, and in a charged state, the high voltage indicator light is turned on, and the display screen displays an electrical identifier; when the current or the temperature is abnormal, the fault indicator lights are lightened, the display screen displays fault identification, and different lines correspond to different fault indicator lights. The display screen is specifically a liquid crystal display screen.
Specifically, for current fault alarm, when a normal running line fails, the error-preventing main machine sends alarm signals from three aspects:
1. the corresponding line fault indicator lamp is lightened;
2. The display screen can display a corresponding text warning prompt;
3. The anti-misoperation electricity checking host computer uploads alarm information to the communication terminal through the RS485 interface, and reports background/sends information to the mobile phone of the appointed person through the communication terminal; after the normal current of the fault removal line is recovered, the fault removal line can be reset manually on site, remotely and manually, or automatically according to the set time.
For temperature fault alarm, when the running temperature of the line exceeds a set value, the error-preventing host can send alarm signals from three aspects:
1. the corresponding line fault indicator lamp is lightened;
2. The display screen can display a corresponding text warning prompt;
3. The anti-misoperation electricity checking host computer uploads the alarm information to the communication terminal through the 485 interface, and reports the background/sends the information to the mobile phone of the appointed person through the communication terminal. After the normal current of the fault removal line is recovered, the fault removal line can be reset manually on site, remotely and manually, or automatically according to the set time.
Of course, the anti-misoperation electricity inspection host also comprises a data storage unit connected with the processing control unit, wherein the data storage unit is used for storing unlocking and locking information, current fault information and temperature fault information; and the method is downloaded through a background program when the inquiry and the export are needed.
Specifically, the current sensor comprises a grounding sensor and a phase sequence sensor, wherein the grounding sensor is arranged at the grounding switch, and the phase sequence sensor is arranged on the phase sequence high-voltage wire; the current sensor is an adaptive current sensor. The phase sequence sensors are three, the grounding sensor is one, and the number of the phase sequence sensors is four. The sensor adopts the latest self-adaptive technology, normal fluctuation in normal operation of the circuit can not give an error alarm, and when the phase sequence sensor detects that a certain mutation is worth to be exceeded, a fault alarm signal is sent to the error-proof electricity inspection host.
Specifically, the anti-misoperation electricity inspection host is internally provided with a wireless real-time communication unit 5, and the wireless real-time communication unit is a radio frequency antenna so as to support 433MHZ wireless communication. The anti-misoperation electricity testing host 2 is provided with an electricity testing interface.
Specifically, as shown in fig. 4, the electronic key 3 includes a power module, a key control module, and an electrical connector 31 that are sequentially connected, where the electrical connector 31 is matched with the electrical connector 21 of the anti-misoperation electrical inspection host 2; the electronic key 3 is internally provided with a wireless real-time communication unit, and the key control module is connected with the wireless real-time communication unit in the electronic key 3 to receive unlocking and locking information sent by the wireless real-time communication unit in the anti-misoperation host 2 in real time. Generally, when the distance between the key and the error prevention host is smaller than 5 meters, the error prevention host and the unlocking key bidirectionally communicate and exchange data.
Specifically, the key control module is a pairing control unit or an unlocking control unit, the pairing control unit is connected with the power module and the electrical inspection connector (31), so that the anti-misoperation electrical inspection host is paired with the electronic anti-misoperation lock, and the unlocking control unit is connected with the power module and the electrical inspection connector (31), so that the electronic key receives unlocking and locking information of the anti-misoperation electrical inspection host and transmits the unlocking and locking information to the electronic anti-misoperation lock.
As shown in fig. 4, the electronic key further includes a display module and an alarm module, both of which are connected with the key control module.
The pairing function and the electricity-checking unlocking function of the electronic key can be realized through two independent keys respectively, so that the electronic key 3 comprises a pairing key and an unlocking key, and a key control module in the pairing key only comprises a pairing control unit to realize the pairing function; the key control module in the unlocking key only comprises an unlocking control unit, so that the function of electricity checking and unlocking is realized.
The matched key is embedded with an independent operating system, adopts a military MCU chip, is internally provided with 433MHZ wireless communication, and can be in instant communication with an anti-misoperation electricity inspection host; the power supply adopts a high-performance detachable 18650 battery, the battery can be replaced and can be charged by a traditional USB interface mode, the charging module is connected with the power supply module, the standby power consumption current of the whole machine is less than or equal to 5uA, the standby time is not less than 3 years, and the battery life is considered to recommend 3 months of charging maintenance. The display module of the pairing key comprises a first red light and a first green light, the first red light and the first green light are connected to the pairing control unit, and when the pairing key 3 is inserted into the anti-misoperation host computer 2 to read the coded information successfully, the first green light flashes; when the pairing key 3 is inserted into the electronic anti-misoperation lock 4 and is successfully paired, the first green light flashes, the pairing is unsuccessful, and the first red light is on.
An independent operating system is embedded in the unlocking key, an military MCU chip is adopted, 433MHz wireless communication is built in, and the unlocking key can be in instant communication with an anti-misoperation electricity inspection host. The power supply adopts a high-performance detachable 18650 battery, which can be replaced and charged in a traditional USB interface mode, the unlocking frequency of full charge is more than or equal to 3000 times, the standby power consumption current of the whole machine is less than or equal to 5uA, the standby time is not less than 3 years, and the service life of the battery is considered to suggest 3 months of charging maintenance; when no high voltage exists in the electric cabinet, the unlocking key 3 is inserted into the anti-misoperation host computer 2, and after an unlocking instruction is obtained, a second green light is lighted; when the electronic key 3 is inserted into the electronic anti-misoperation lock 4, the unlocking is successful, and the second green light flashes; when there is high pressure in the regulator cubicle, unblock key 3 is no matter insert electron and prevent mistake lock 4, and the second red light all twinkles, and simultaneously, alarm module is bee calling organ, and bee calling organ's alarm sound can sound under this kind of circumstances.
Specifically, as shown in fig. 3, a voltage reduction circuit module and a rectifying and voltage stabilizing module are further connected between the current sensor and the processing control unit in sequence, and the voltage reduction circuit module is connected with the current sensor to reduce the induced high voltage, so that the signal receiving standard of the electricity inspection control module is met, and the electricity inspection interface 21 is matched with the electronic key 3. The rectification voltage stabilizing module is a group of connected rectification bridges and voltage stabilizing diodes, the group of rectification bridges and voltage stabilizing diodes are used as sampling output circuits, and the output high and low levels can be used as sampling of the electroscope control module; the processing control unit is an MCU controller; the electricity checking interface is an aviation plug, and the aviation plug is matched with the electronic key.
Further, as shown in fig. 5, the electronic anti-misoperation lock 4 comprises a lock body 42, and a linkage mechanism, an electromagnet driver, a control circuit 48 and a key interface 41 which are positioned in the lock body 42; the control circuit 48 is respectively connected with the electromagnet driver and the key interface 41, and the key interface 41 is matched with the electronic key 3; the electromagnet driver and the linkage mechanism are matched to drive the linkage mechanism to unlock. The electromagnet driver is a self-holding electromagnet 46, the electronic key 3 is inserted into the key interface 41 of the electronic anti-misoperation lock 4, an unlocking instruction is transmitted to the control circuit 48 of the electronic anti-misoperation lock 4, the control circuit 48 controls the electromagnet driver, the electromagnet of the electromagnet driver acts to trigger the linkage mechanism, the linkage mechanism works, and the electronic anti-misoperation lock 4 is opened, so that unlocking is realized.
Specifically, the linkage mechanism includes a U-shaped lock lever 49, a linkage member 40 located in the lock body 42, an elastic member, and a reset lever 43; the free end of the U-shaped lock rod 49 is matched with the lock hole of the lock body 42, the connecting end of the U-shaped lock rod 49 is provided with a clamping recess which is an annular recess of the connecting end of the U-shaped lock rod 49 and is positioned in the lock body 42, the lower part of the connecting end is connected with an elastic piece, and the elastic piece is a return spring 47; the clamping end of the linkage piece 40 is matched with the clamping recess of the connecting end of the U-shaped lock rod 49, the U-shaped lock rod 49 is clamped, the linkage piece 40 is provided with a linkage stop block 44, an electromagnet driver is positioned on one side of the linkage stop block 44, which is close to the clamping end, and is used for pushing the linkage piece 40 out of the clamping recess, a reset rod 43 is positioned on one side of the linkage stop block 44, which is far away from the clamping end, and is used for pushing the clamping end of the linkage piece into the clamping recess, a travel switch 45 is arranged on one side of the linkage stop block 44, which is far away from the clamping end, and the travel switch 45 is connected with a control circuit 48.
Of course, the electronic anti-misoperation lock 4 can also take other forms, as shown in fig. 6, and can comprise a clamping piece 14, a lock body 8, a locking fork 7, a lever section 10, a driving component and a control unit 9 which are arranged in the lock body 8, wherein the upper part of the lock body 8 is provided with an extended hook section 13, the clamping piece 14 is hinged on the lock body 8, the clamping part of the clamping piece 14 is positioned outside the lock body 8 and is clamped with the free end of the hook section 13, and the bearing part of the clamping piece 14 is positioned in the lock body 8; the locking fork 7 is elastically hinged inside the lock body 8 in a rotary mode, the driving fork end of the locking fork 7 is supported at the lower portion of the bearing portion of the clamping piece 14, the buckling fork end of the locking fork 7 is buckled with the buckling end of the lever section 10, the lever section 10 is hinged inside the lock body 8, the connecting end of the lever section 10 is connected with the driving assembly, the driving assembly is connected with the control unit 9, and the control unit 9 controls the driving assembly to work when power is supplied from outside, so that unlocking and locking are achieved.
The system integrates multiple functions and has the functions of high-voltage live display, electricity verification authorization, current fault alarm, temperature fault alarm, current/temperature display, data storage, 433MHZ wireless communication, 485 data output, fault alarm switching value output, remote reset and the like; specifically, the method comprises the following steps:
a. and the high-voltage electrification display is carried out, under the electrification state, the error-prevention host machine detects an electrification signal, the high-voltage indicator lamp is lightened, and meanwhile, the right lower corner of the liquid crystal display screen can display an electrification character.
B. The anti-misoperation electricity checking host computer automatically judges whether to authorize the key to unlock according to the electrification condition of the circuit; after the unlocking instruction is authorized, the circuit unexpected incoming call is generated in the unlocking process, and the anti-misoperation host sends the instruction for stopping unlocking authorization to the electronic key in real time through wireless communication, so that the safety is ensured. (the error-proof electricity inspection host and the electronic error-proof lock are effective within a distance of 5 meters)
C. When the current fault alarm occurs and the normal running line fails, the error-preventing host sends out alarm signals from three aspects, 1, the corresponding line fault indicator lights are lightened, 2, the display screen can display corresponding text alarm prompts, 3, the error-preventing host uploads alarm information to the communication terminal through a 485 interface, and reports background/sends information to appointed personnel mobile phones through the communication terminal. After the normal current of the fault removal line is recovered, the fault removal line can be reset manually on site, remotely and manually, or automatically according to the set time.
D. When the running temperature of the line exceeds a set value, the error-preventing host sends out alarm signals from three aspects, namely, 1, the corresponding line fault indicator lights are lighted; 2. the display screen can display a corresponding text warning prompt; 3. the anti-misoperation electricity checking host computer uploads alarm information to the communication terminal through the RS485 interface, reports background/sends information to the mobile phone of appointed personnel through the communication terminal, and after the normal current of the fault elimination line is recovered, the fault elimination line can be reset manually on site, remotely and manually or automatically according to the set time.
E. And displaying the current/temperature, wherein the current temperature information received by the anti-misoperation host computer is displayed on a liquid crystal display screen in real time.
F. and storing the data, namely storing the unlocking and locking information, the current fault information and the temperature fault information acquired by the error-proof host, and downloading the information through a background program when the information is required to be inquired and exported.
G. 433MHZ wireless communication, the built-in radio frequency antenna of the anti-misoperation host computer supports 433MHZ wireless communication; when the distance between the unlocking key and the error-proof host computer is less than or equal to 5 meters, the error-proof host computer and the unlocking key are in bidirectional communication with each other for data interaction.
H. And outputting RS485 data, and uploading the data acquired by the anti-misoperation electricity testing host to the communication terminal through an RS485 interface by using a MODBUS protocol.
I. And outputting fault alarm switching value, wherein when the anti-misoperation electricity testing host machine collects current/temperature fault information, the host machine outputs a closing signal, and after the fault is eliminated, the closing nodes are automatically separated.
J. The forward and reverse operation, the anti-misoperation electricity inspection host can record two groups of pairing sequences through the forward and reverse switches on the panel, for example: there are three electronic anti-misoperation locks, the forward pairing sequence can be set to 123, and the reverse pairing sequence can be set to 321, if the switch is required to be turned on by the sequential switch 123 to the forward direction, and the switch is required to be turned on by the sequential switch 321 to the reverse direction.
K. And after the remote reset and fault alarm occur, the remote reset port is used for manually resetting after the fault is detected and removed.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. An electrical cabinet electricity inspection misoperation prevention system is characterized in that: the anti-misoperation device comprises a current sensor, an anti-misoperation host, an electronic key and an electronic anti-misoperation lock; the current sensor is arranged at a high-voltage wire band-pass electricity detection position in the electric cabinet, and the electronic misoperation prevention lock is arranged at an misoperation prevention opening position of the electric cabinet; the current sensor is connected with the anti-misoperation electricity checking host to transmit the electrified information of the high-voltage wire to the anti-misoperation electricity checking host in real time, and the anti-misoperation electricity checking host receives the electrified information and forms a pairing signal and unlocking and locking information; the electronic key is matched with the anti-misoperation electricity checking host, is used for reading the pairing signal in the anti-misoperation electricity checking host or receiving unlocking and locking information transmitted by the anti-misoperation electricity checking host, and is matched with the electronic anti-misoperation phase lock, and is used for transmitting the pairing signal or the unlocking and locking information to the electronic anti-misoperation lock; the anti-misoperation host computer is in instant wireless connection with the electronic key through a wireless real-time communication unit, and the electronic key receives the unlocking and locking information transmitted by the anti-misoperation host computer in instant; when no high-voltage electrified no-current fault exists in the electric cabinet, the electronic key obtains an unlocking instruction; when the unlocking instruction is authorized, and the line is accidentally powered on in the unlocking process, the anti-misoperation host computer terminates the unlocking authorization in real time through wireless communication.
2. The electrical cabinet electroscopic and anti-misoperation system according to claim 1, wherein: the anti-misoperation electricity inspection host comprises a processing control unit and a display unit which are connected, wherein the temperature sensor and the current sensor are connected with the processing control unit, and the temperature sensor is arranged near a high-voltage wire in the electric cabinet so as to detect temperature information of the wire in real time and transmit the temperature information to the processing control unit, and the processing control unit transmits the temperature information and the electrified information to the display unit.
3. The electrical cabinet electroscopic and anti-misoperation system according to claim 2, wherein: the anti-misoperation electricity inspection host also comprises a fault alarm unit and an RS485 interface which are connected with the processing control unit, wherein the processing control unit transmits current temperature fault information to a communication terminal through the RS485 interface, and the communication terminal is associated with the mobile phone.
4. The electrical cabinet electroscopic and anti-misoperation system according to claim 3, wherein: the anti-misoperation electricity testing host also comprises a data storage unit connected with the processing control unit, wherein the data storage unit is used for storing unlocking and locking information, current fault information and temperature fault information.
5. The electrical cabinet electroscopic and anti-misoperation system according to claim 1, wherein: the current sensor comprises a grounding sensor and a phase sequence sensor, the grounding sensor is arranged at the grounding switch, and the phase sequence sensor is arranged on the phase sequence high-voltage wire; the current sensor is an adaptive current sensor.
6. The electrical cabinet electroscopic and anti-misoperation system according to claim 2, wherein: the display unit comprises a display screen and an indicator lamp, wherein the indicator lamp comprises a high-voltage indicator lamp and a fault indicator lamp, the high-voltage indicator lamp is lighted in a charged state, and the display screen displays an electric mark; when the current or the temperature is abnormal, the fault indicator lights up, and the display screen displays fault identification.
7. The electrical cabinet electroscopic and anti-misoperation system according to claim 1, wherein: the anti-misoperation host is internally provided with a wireless real-time communication unit, and the wireless real-time communication unit is a radio frequency antenna to support 433MHz wireless communication.
8. The electrical cabinet electroscopic anti-misoperation system according to any of the claims 1-7, wherein: the electronic key comprises a power supply module, a key control module and an electricity checking connector which are connected in sequence, and the electricity checking connector is matched with an electricity checking interface of the error checking prevention host; the electronic key is internally provided with a wireless real-time communication unit, and the key control module is connected with the wireless real-time communication unit in the electronic key so as to receive unlocking and locking information sent by the wireless real-time communication unit in the anti-misoperation host in real time.
9. The electrical cabinet electroscopic and anti-misoperation system of claim 8 wherein: the key control module is a pairing control unit or an unlocking control unit, the pairing control unit is connected with the power module and the electrical inspection connector, so that the anti-misoperation electrical inspection host is paired with the electronic anti-misoperation lock, the unlocking control unit is connected with the power module and the electrical inspection connector, and the electronic key receives unlocking and locking information of the anti-misoperation electrical inspection host and transmits the unlocking and locking information to the electronic anti-misoperation lock.
10. The electrical cabinet electroscopic and anti-misoperation system of claim 8 wherein: the electronic key further comprises a display module and an alarm module, and the display module and the alarm module are connected with the key control module.
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| CN201710672982.2A CN108155038B (en) | 2017-08-09 | 2017-08-09 | Electrical cabinet electricity inspection misoperation prevention system |
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| CN201710672982.2A CN108155038B (en) | 2017-08-09 | 2017-08-09 | Electrical cabinet electricity inspection misoperation prevention system |
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| CN114373370A (en) * | 2022-02-11 | 2022-04-19 | 国网江苏省电力有限公司技能培训中心 | Electricity testing simulation device |
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| JP2010196256A (en) * | 2009-02-23 | 2010-09-09 | Meiwa Kk | Electronic lock system, key and lock |
| CN103556881B (en) * | 2013-10-31 | 2017-01-11 | 北京微能汇通电力技术有限公司 | Ring latch device |
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| CN103985174A (en) * | 2014-05-21 | 2014-08-13 | 珠海华伟电气科技股份有限公司 | Power distribution network lock control system and working method thereof |
| CN204101675U (en) * | 2014-07-28 | 2015-01-14 | 北京华电瑞通电力工程技术有限公司 | A kind of intelligent monitoring cable branch box |
| DE102015117041A1 (en) * | 2015-10-07 | 2017-04-13 | Schulte-Schlagbaum Aktiengesellschaft | Electronic locking device |
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