CN112937379A - System and method for safely cutting off/transmitting power for overhauling and maintaining subway vehicle - Google Patents
System and method for safely cutting off/transmitting power for overhauling and maintaining subway vehicle Download PDFInfo
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- CN112937379A CN112937379A CN202110111038.6A CN202110111038A CN112937379A CN 112937379 A CN112937379 A CN 112937379A CN 202110111038 A CN202110111038 A CN 202110111038A CN 112937379 A CN112937379 A CN 112937379A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 238000003062 neural network model Methods 0.000 claims abstract description 35
- 238000012423 maintenance Methods 0.000 claims description 37
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 238000011022 operating instruction Methods 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/04—Arrangements for cutting in and out of individual track sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M5/00—Arrangements along running rails or at joints thereof for current conduction or insulation, e.g. safety devices for reducing earth currents
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
Abstract
The invention provides a system for safely cutting off/transmitting power for overhauling and maintaining a subway vehicle, which comprises: the image acquisition modules are used for acquiring image information of the car roof overhaul platform and the pantograph of the touch cable; the host computer contains: a power cut/transmission program corresponding to a power cut/transmission operation flow of the touch wire, and trained first to third neural network models; a knife switch mechanism box control module; the ground rod lock box/ground wire lock box is used for placing a ground rod/ground wire; the switch blade mechanism control module box, the grounding rod lock box and the grounding wire lock box can identify an access card of an operator and send read access card information to the upper computer; and the upper computer generates command signals for opening the switch blade mechanism box, the grounding rod lock box and the grounding wire lock box according to the operation command input by the guardian, the power-off/power-transmission program, the received access card information and the recognition results of the first to third neural network models. The invention also provides a method for safely cutting off/transmitting power for overhauling and maintaining the subway vehicle.
Description
Technical Field
The invention relates to the field of subway train maintenance, in particular to a system and a method for safely cutting off/transmitting power for subway train maintenance.
Background
A touch net wire is arranged above the subway train, the voltage of the touch net wire is 1500V direct current, and the touch net wire is electrically connected with a pantograph at the top of the subway train to provide power for the operation of the subway train. In general, roof equipment (such as train air conditioners, pantographs and the like) needs to be lifted up to a roof maintenance platform for maintenance in a garage. For safety, the car roof is required to be subjected to power off operation by touching the net in the garage. In order to prevent sudden incoming calls, a grounding rod needs to be hung, one end of the grounding rod is fixed on the touch screen, the other end of the grounding rod is fixed on a rail, and then the rail goes to a high-rise maintenance platform to maintain the equipment on the top of the train. After the maintenance operation is completed, the grounding rod must be removed, and then the operation of touching the network and transmitting power is carried out.
For the current Shanghai subway, with the gradual expansion of the operation scale of the subway and the gradual increase of the number of operation trains, the equipment for checking the roof of the subway vehicle by climbing the top is a normalized overhaul project. At present, the common power cut-off/power transmission operation flow is carried out by adopting a manual mechanical locking mode of double-person operation (one-person operation and one-person monitoring). All the operations of the current power cut-off/transmission protection depend on whether an operator executes the operations according to a preset flow, and the mode has the hidden danger of human errors. The method is characterized in that a person who operates by one person or has no power-off/power-transmission operation certificate carries out power-off/power-transmission operation, an operator breaks by mistake and power-transmission by mistake, after the brake is broken, the grounding rod is hung without electricity inspection, the maintenance platform is mistakenly rushed without safety power-off, the grounding rod is not dismounted to carry out power-transmission operation and other misoperation, and personal casualties and equipment damage accidents caused by misoperation occur occasionally. Even if the subway vehicle is operated by two persons, the safety of the power-off/power-transmission operation of the touch network cable can not be ensured when the subway vehicle is overhauled and maintained.
Therefore, it is highly desirable to provide a system and a method for safely cutting off/transmitting power, which are suitable for overhauling the equipment on the top of a subway train, in combination with the existing operation control flow of cutting off/transmitting power of the subway, so as to get rid of absolute dependence on operators, ensure the safety of personnel and equipment in the operation process, thoroughly eliminate various potential safety hazards in the operation process of cutting off/transmitting power of a touch network cable, and cut off/transmit to ensure the orderly execution of the operation flow.
Disclosure of Invention
The invention aims to provide a system and a method for safely cutting off/transmitting power for overhauling and maintaining a subway vehicle, which can intelligently manage the cutting off/transmitting flow of a touch network wire when the roof equipment of the subway train is overhauled, ensure that a worker cuts off/transmits the power of the touch network wire according to set steps, prevent various misoperation from occurring, ensure the personal safety of the worker and effectively prevent the roof equipment from being damaged.
In order to achieve the above object, the present invention provides a system for safely cutting off/supplying power for maintenance and repair of a subway vehicle, wherein a knife control mechanism for driving the opening and closing of a knife is arranged in a knife mechanism box, the system comprises:
the system comprises a plurality of image acquisition modules, a plurality of communication modules and a plurality of communication modules, wherein the image acquisition modules are used for acquiring first image information of a roof maintenance platform, second image information of a touch net wire and third image information of a pantograph of a vehicle to be maintained;
the host computer, it contains: a power cut/transmission program corresponding to a power cut/transmission operation flow of the touch wire, and trained first to third neural network models; the first neural network model is used for identifying whether a person exists on the roof overhaul platform; the second neural network model is used for identifying whether a grounding rod is hung on the touch net wire or not; the third neural network model is used for identifying the pantograph ascending/descending state of the pantograph of the vehicle to be overhauled;
a knife switch mechanism box control module;
the grounding rod lock box is used for placing a grounding rod of the grounding rod;
the ground wire lockset box is used for placing a ground clamp of a ground rod, an operating head and a ground wire;
the switch blade mechanism control module box, the grounding rod lock box and the grounding wire lock box can identify an access card of an operator and send read access card information to an upper computer; and the upper computer generates command signals for opening the switch blade mechanism box, the grounding rod lock box and the grounding wire lock box according to the operation command input by the guardian, the power-off/power-transmission program, the received access card information and the recognition results of the first to third neural network models.
Preferably, the system for safely cutting off/transmitting power for subway vehicle maintenance and repair further comprises an HMI input/output module for visually displaying the cutting off/transmitting power operation flow and the current operation; the guardian still passes through HMI input/output module inputs to the host computer operating instruction contains: entering an off/power transmission mode, lowering/lifting a bow, opening a knife switch mechanism box, a grounding rod lock box and a grounding wire lock box.
Preferably, the knife mechanism box control module comprises: the device comprises a first card reading module, a first control module, a closing indicator lamp and an opening indicator lamp; the knife switch mechanism box also comprises a first control module, wherein the first control module is in signal connection with the knife switch mechanism box: the power failure protection device comprises a first electromagnetic lock, a knife switch mechanism box power failure protection device and a first micro-motion limit travel switch;
the first card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the first electromagnetic lock is used for locking a box door of the knife switch mechanism box;
the first control module is used for sending the entrance guard card information read by the first card reading module to the upper computer and receiving an instruction signal sent by the upper computer for opening the knife switch mechanism box to drive the first electromagnetic lock to unlock;
the switching-off and switching-on indicating lamp is used for indicating the switching-off and switching-on states of the network cable knife;
the power-down protection device of the switch blade mechanism box is used for closing a box door of the switch blade mechanism box under the condition that the first control module is powered off;
the first inching limit travel switch is used for detecting the opening/closing state of the door of the knife switch mechanism box and sending a knife switch mechanism box opening/closing state signal to the upper computer through the first control module according to a detection result.
Preferably, the ground bar lock box comprises: the device comprises a hollow ground rod lock box body, a second control module, a second card reading module, a photoelectric switch, a second electromagnetic lock, a second micro limit travel switch and a ground rod lock box power-off protection device, wherein the second card reading module, the photoelectric switch, the second electromagnetic lock, the second micro limit travel switch and the ground rod lock box power-off protection device are in signal connection with the second control module;
one side surface of the grounding rod lock box forms a grounding rod lock box door; a first opening/a second opening is formed between the top/bottom surface of the box body of the ground rod lock box and the box door of the ground rod lock box; the first opening corresponds to the second opening in position, and the grounding rod lock box is sleeved outside the grounding rod through the first opening and the second opening;
the second card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the second electromagnetic lock is used for locking a box door of the ground rod lock box;
the second control module is used for sending the entrance guard card information read by the second card reading module to the upper computer and driving the second electromagnetic lock to unlock according to the instruction signal sent by the upper computer for opening the ground rod lock box;
the photoelectric switch is arranged in the grounding rod lock box body and used for identifying whether the grounding rod is placed in the grounding rod lock box body or not, and generating and sending a grounding rod in-place/out-of-place signal to an upper computer according to an identification result;
the ground rod lock box power-down protection device is used for closing a box door of the ground rod lock box under the condition that the second control module is powered off;
the second micro limit travel switch is used for detecting the opening/closing state of the door of the ground rod lock box and sending a signal of the opening/closing state of the ground rod lock box to the upper computer through the second control module according to the detection result.
Preferably, the ground wire lock box includes: the third control module is in signal connection with the upper computer, and the third card reading module, the third electromagnetic lock, the third inching limit travel switch and the ground wire lock box power-down protection device are in signal connection with the third control module;
the third card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the third electromagnetic lock is used for locking a box door of the grounding wire lockset box;
the third control module is used for sending the entrance guard card information read by the third card reading module to the upper computer and driving the third electromagnetic lock to unlock according to the instruction signal sent by the upper computer for opening the ground wire lock box;
the ground wire lockset box power-down protection device is used for closing a box door of the ground wire lockset box under the condition that the third control module is powered off;
the third inching limit travel switch is used for detecting the opening/closing state of the door of the ground wire lock box and sending a signal of the opening/closing state of the ground wire lock box to the upper computer through the third control module according to the detection result;
the grounding wire lockset box is also used for placing an operating head and a grounding clip of the grounding rod.
Preferably, a power-on in-place limit switch and a power-off in-place limit switch which are in signal connection with the first control module are arranged at the top of the knife switch mechanism box; a stop block is fixedly arranged at the bottom of a rotating rod of the touch net wire isolating switch and is positioned between the power-on and power-off in-place limit switches; the rotating rod is driven by the switch blade control mechanism, so that the stop block triggers the power transmission in-place limit switch and the power failure in-place limit switch to generate corresponding power transmission in-place signals and power failure in-place signals; and sending the power transmission in-place signal and the power failure in-place signal to an upper computer through a first control module.
Preferably, the system for safely cutting off/supplying power for subway vehicle maintenance and repair further comprises a roof repair platform lock control module, which is used for opening a fourth electromagnetic lock on a door of the roof repair platform; a fourth inching limit travel switch is also arranged on the car roof access platform door;
roof overhauls platform tool to lock control module contains: the fourth control module and the fourth card reading module; the fourth control module is in signal connection with the upper computer, the fourth card reading module, the fourth inching limit travel switch and the fourth electromagnetic lock;
the fourth card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the fourth control module is used for sending the entrance guard card information read by the fourth card reading module to the upper computer and driving the fourth electromagnetic lock to unlock according to the instruction signal sent by the upper computer for opening/closing the car roof access platform door;
and the fourth micro limit travel switch is used for detecting the opening/closing state of the roof access platform door and sending a roof access platform door opening/closing state signal to the upper computer through the fourth control module according to the detection result.
Preferably, the system for safely cutting off/transmitting power for overhauling and maintaining the subway vehicle further comprises a communication module, and signal transmission between the upper computer and the first to fourth control modules is realized through the communication module.
The invention also provides a method for safely cutting off/transmitting power for overhauling and maintaining the subway vehicle, which is realized by adopting the system for safely cutting off/transmitting power for overhauling and maintaining the subway vehicle, and comprises the following steps:
s1, verifying the operation authority of the operator and the guardian by the upper computer, and entering S2 if the verification is passed;
s2, sequentially inputting operating instructions for entering a power-off mode, descending a bow and opening a knife switch mechanism box to the upper computer by a guardian; after an operator lowers a pantograph of a vehicle to be overhauled, swiping an access card to a control module of a switch blade mechanism box; if the pantograph is identified to be in a pantograph descending state by the first neural network model, the upper computer sends a command signal for opening the knife switch mechanism box, and the operation enters S3;
s3, opening a box door of the knife switch mechanism box, driving a rotating rod of a contact network cable isolating switch to rotate by an operator through the knife switch control mechanism, and entering a step S4 if the upper computer receives a power-off in-place signal within set time; otherwise, go to S8;
s4, inputting an operation instruction for testing electricity of the touch screen wire to the upper computer by a guardian, and testing electricity of the touch screen wire of the station track to be powered off by the operator; if the net touching wire is not electrified, the guardian confirms that the net touching wire is not electrified to the upper computer; proceeding to S5;
s5, inputting an instruction signal for opening the grounding rod lock box into an upper computer by a guardian, swiping an entrance guard card to the grounding rod lock box by an operator, sending the instruction signal for opening the grounding rod lock box by the upper computer, taking out the grounding rod by the operator, and entering S6;
s6, inputting a command signal for opening the grounding wire lock box into an upper computer by a guardian, swiping an access card to the grounding wire lock box by an operator, and sending the command signal for opening the grounding wire lock box by the upper computer; a guardian inputs a command signal for hanging the grounding rod to an upper computer, and an operator assembles the grounding rod and hangs the grounding rod on the touch net wire; if the second neural network model identifies that the grounding rod is hung on the touch net wire, the step S7 is carried out; otherwise, go to S8;
s7, inputting an instruction signal for opening the car roof access platform door to the upper computer by a guardian; an operator swipes an access card to the lock control module of the car roof maintenance platform to perform maintenance operation;
and S8, the upper computer stops working after generating an alarm signal.
Preferably, the method for safely cutting off/feeding power for subway vehicle maintenance further comprises the following steps:
s9, the operator leaves the car roof overhaul platform, and the guardian inputs an operation instruction for entering a power transmission mode to the upper computer; if the third neural network model identifies that no personnel exist in the roof overhaul platform, the step S10 is carried out; otherwise, go to S14;
s10, inputting an operation instruction for taking down the grounding rod to the upper computer by a guardian; an operator removes the grounding rod; if the second neural network model identifies that the grounding rod is not hung on the touch net wire, the step S11 is carried out; otherwise, go to S14;
s11, a guardian inputs an operation instruction for opening the grounding wire lock box to the upper computer, and a worker swipes an entrance guard card to open the grounding wire lock box and puts a grounding wire, a grounding clip and an operating head in; a guardian inputs an operation instruction for opening the grounding rod lock box to the upper computer, and a worker swipes an entrance guard card to open the grounding rod lock box and puts the grounding rod into the lock box; proceeding to S12;
s12, inputting an operation instruction for opening the switch blade mechanism box by a guardian to an upper computer, swiping an access card to a switch blade mechanism box control module by the operator to open the switch blade mechanism box, and driving the rotating rod to rotate through the switch blade control mechanism; if the upper computer receives the power transmission in-place signal within the set time, the step enters S13, and if not, the step enters S14;
s13, the guardian inputs an operation instruction of pantograph lifting to the upper computer, and the operator lifts the pantograph; if the pantograph is identified to be in a pantograph lifting state by the first neural network model, completing power transmission operation of the touch network cable; otherwise, go to S14;
and S14, the upper computer stops working after generating an alarm signal.
Compared with the prior art, the invention has the beneficial effects that:
1) by the intelligent power cut-off/transmission safety system and the intelligent power cut-off/transmission safety method, the power cut-off/transmission flow of a site can be effectively monitored, the misoperation step can be found in time, various safety accidents in the power cut-off/transmission process of a touch net wire can be prevented, the personal safety of operators is ensured, and the damage to roof equipment is effectively prevented;
2) in the invention, the information of the station track to be subjected to power cut/transmission operation is written into the access card of an operator, so that the power cut/transmission operation of the wrong station track is prevented;
3) in the invention, the disconnection/power transmission flow of the touch network cable is intelligently managed, and the disconnection/power transmission program corresponding to the disconnection/power transmission operation flow is written into the upper computer; in the power-off process, an operator should open the switch blade mechanism box, the grounding rod lock box and the grounding wire lock box in sequence; in the power transmission process, an operator should open the grounding wire lock box, the grounding rod lock box and the switch blade mechanism box in sequence, if the operator does not perform 'jumping' operation according to a set flow, the upper computer considers that the operation does not accord with the set program, the operation cannot be performed, and the upper computer generates alarm information;
4) in the power-off operation, if the upper computer does not receive the power-off in-place signal after the switch blade mechanism box is opened, the door of the grounding rod lock box cannot be opened subsequently, and the next operation cannot be carried out; in the power transmission operation, if the upper computer does not receive a power transmission in-place signal after the switch blade mechanism box is opened, the upper computer alarms; the invention effectively ensures the disconnection/power-on in-place of the touch network wire;
5) the invention can also detect whether the working personnel closes the door of the switch blade mechanism box, the switch blade mechanism box control module, the grounding rod lock box and the grounding wire lock box, and whether the grounding rod is reset, thereby strengthening the scientific management of the power failure/transmission operation flow;
6) the invention can help the operator and the guardian to carry out the power on/off operation of the touch wire during the vehicle maintenance operation according to the standard, and automatically identifies the state of the pantograph, whether the touch wire is hung with a grounding rod or not and whether the vehicle roof maintenance platform is provided with personnel or not through the first to the third neural network models, thereby effectively preventing accidents in the power off/off operation and reducing the dependence on the operator and the guardian.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are an embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts according to the drawings:
FIG. 1 is a schematic diagram of a prior art isolating switch for a railway traffic contact network cable;
fig. 2 and 3 are schematic structural diagrams of a system for safely cutting off/transmitting power for overhauling and maintaining a subway vehicle according to the invention;
fig. 4A and 4B are schematic diagrams of a knife mechanism box, a knife mechanism box control module and a rotating rod according to the present invention;
FIG. 4C is a schematic diagram of a first electromagnetic lock, a power-down protection device and a first inching limit travel switch of the knife switch mechanism box according to the present invention;
FIG. 5 is a schematic view of a ground bar lock box of the present invention;
FIG. 6 is a schematic view of a ground wire lock box according to the present invention;
FIG. 6A is a schematic diagram of a third electromagnetic lock and a third inching limit travel switch of the ground wire lock box of the invention
FIG. 7 is a schematic view of a roof inspection platform according to the present invention;
FIG. 8 is a schematic view of a fourth electromagnetic lock of the present invention;
FIG. 9 is a schematic diagram of an interface displayed by the HMI I/O module during power-off operation;
fig. 10 is a schematic view of an interface displayed by the HMI input/output module during power transmission operation;
in the figure: a1, a roof equipment inspection platform a2 and a post insulator; a3, operating insulators; a4, knife switch; a5, rotating rod; a6, a grounding bar; a7, ground line; a8, operating head; a9, grounding clip; a10, touching the net wire; a11, a stop block; a12, pantograph.
100. A knife mechanism case; 101. a first electromagnetic lock; 102. a power failure protection device for the knife switch mechanism box; 103. a first inching limit travel switch; 104. a power transmission in-place limit switch; 105. a power-off in-place limit switch;
200. a knife switch mechanism box control module; 201. a first card reading module; 202. a switch-on indicator light; 203. a brake-off indicator light;
300. a ground bar lockset box; 301. a second control module; 302. the power failure protection device comprises a second card reading module, a second card reading module 303, a photoelectric switch 304, a second electromagnetic lock 305, a second micro limit travel switch 306 and a ground rod lock box; 307. a first opening; 308. a second opening;
400. a ground wire lockset box; 401. a third control module signal; 402. a third card reading module, 403 and a third electromagnetic lock; 404. a third inching limit travel switch; 405. a power failure protection device of a ground wire lockset box;
500. a lock control module of the roof overhaul platform; 501. a fourth electromagnetic lock;
600. an HMI input/output module;
700. an image acquisition module;
800. an upper computer;
900. and a communication module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the isolation switch of the rail contact network line is generally of a double-column vertical on-off structure. The isolating switch comprises two post insulators a2, an operating insulator a3, a knife switch a4 and a rotating rod a 5. The rotating rod a5 rotates around the central shaft of the rotating rod a4, so that the switch-on and the switch-off of the switch blade a4 are realized, the network cable is touched to supply power when the switch blade is switched on, and the network cable is touched to cut off the power when the switch blade is switched off. Before the subway train roof equipment is overhauled, the touch net wire on the corresponding station track is powered off, a worker can climb the roof overhauling platform to overhaul, and the power supply of the touch net wire is recovered after overhauling.
The switch blade mechanism box comprises a switch blade control mechanism which is arranged below the rotating rod and fixedly connected with the bottom of the rotating rod. The disconnecting switch switching-on and switching-off is realized by driving the rotating rod to rotate around the central shaft of the disconnecting switch control mechanism (the prior art).
When the power-off operation of the touch wire is carried out, in order to prevent sudden power-on, a grounding rod is required to be arranged between the touch wire and a rail. The ground rod is composed of an insulating ground rod, a ground wire, an operating head and a ground clamp. The grounding clip made of metal is fixedly connected with the rail, the grounding wire is electrically connected between the grounding clip and the operating head, and the operating head is hung on the touch screen and is electrically connected with the touch screen. Meanwhile, one end of the insulating grounding rod is detachably connected with the operating head, and the operating head is hung on the touch screen through the grounding rod.
The invention provides a system for safely cutting off/transmitting power for overhauling and maintaining a subway vehicle, which comprises the following components as shown in figures 2 and 3: the system comprises a plurality of image acquisition modules 700, an upper computer 800, a knife switch mechanism box control module 200, a grounding rod lock box 300, a grounding wire lock box 400, an HMI (human Machine interface) input and output module 600, a roof overhaul platform lock control module 500 and a communication module 900.
The image acquisition modules are respectively used for acquiring first image information of the roof maintenance platform, second image information of the touch wire and third image information of the pantograph a12 of the vehicle to be maintained.
As shown in fig. 9 and 10, the HMI input/output module 600 is used for visually displaying the power cut/transmission operation flow and the current operation; the guardian still passes through HMI input/output module inputs to the host computer operating instruction contains: entering an off/power transmission mode, lowering/lifting a bow, opening a knife switch mechanism box, opening a grounding rod lock box, opening a grounding wire lock box, opening a roof access platform door, testing electricity for a touch network wire and hanging a ground rod.
The host computer contains: a power cut/transmission program corresponding to the power cut/transmission operation process of the touch wire, and trained first to third neural network models.
In the embodiment of the invention, if the power-off operation is performed on the touch screen wire, according to the power-off program, the guardian should sequentially input the operation instructions of entering the power-off mode, lowering the pantograph a12 of the compartment to be detected, opening the switch blade mechanism box 100, opening the ground rod lock box 300, opening the ground wire lock box 400 and opening the roof access platform door to the upper computer, and the operator performs corresponding operations according to the operation instructions of the guardian. If a "jump" occurs, subsequent operations cannot be performed through the power-off procedure in the host computer 800 (e.g., the ground wire locker box 400 cannot be opened by swiping a card through the ground wire locker box 400 before opening the ground rod locker box 300).
If the power transmission operation is performed on the touch network cable, according to the power transmission program, a guardian inputs operating instructions for entering a power transmission mode, taking down the grounding rod, opening the grounding wire lock box, opening the grounding rod lock box, opening the switch blade mechanism box and lifting the bow to the upper computer in sequence, and the operator performs corresponding operation according to the operating instructions of the guardian. If the "jump" occurs, the subsequent operation cannot be performed by the power transmission program in the upper computer 800.
The first neural network model is used for identifying whether a person exists on the roof overhaul platform; the second neural network model is used for identifying whether a grounding rod is hung on the touch net wire or not; the third neural network model is used for identifying the pantograph-ascending/pantograph-descending state of the pantograph a12 of the vehicle to be overhauled.
In the embodiment of the present invention, the upper computer 800 is further used for verifying the operation authority of the operator and the guardian (for example, verifying by inputting an account and an account password). The upper computer 800 also stores a station number to be disconnected/powered and an operator ID number for disconnection/powering. The ID number of the operator is used for uniquely identifying identity information of the operator; the access card information comprises an operator ID number and the station track number.
The switch blade mechanism control module box, the grounding rod lock box and the grounding wire lock box can identify an access card of an operator and send read access card information to an upper computer; and the upper computer generates command signals for opening the switch blade mechanism box, the grounding rod lock box and the grounding wire lock box according to the operation command input by the guardian, the power-off/power-transmission program, the received access card information and the recognition results of the first to third neural network models. An operator swipes an entrance guard card for the switch blade mechanism box control module 200, the grounding rod lock box 300, the grounding wire lock box 400 and the roof maintenance platform lock control module 500, and command signals generated by an upper computer for opening the switch blade mechanism box, the grounding rod lock box, the grounding wire lock box and the roof maintenance platform door are used for opening the switch blade mechanism box 100, the grounding rod lock box 300, the grounding wire lock box 400 and the roof maintenance platform door.
As shown in fig. 4A and 4B, the blade mechanism box control module 200 includes: a first card reading module 201, a first control module (not shown in the figure, disposed in the knife switch mechanism box control module 200), a closing indicator lamp 202, and an opening indicator lamp 203.
A knife control mechanism (not shown) for driving the rotation of the rotating rod is provided in the knife mechanism box 100. As shown in fig. 4C, the knife mechanism box 100 is further provided with a signal connection with the first control module: a first electromagnetic lock 101, a power failure protection device 102 of a knife switch mechanism box and a first micro-motion limit travel switch 103.
The first card reading module 201 is used for identifying an access card of an operator and reading access card information of the access card. The first electromagnetic lock 101 is used to lock the door of the blade mechanism case 100. The first control module is configured to send the access card information read by the first card reading module 201 to the upper computer 800, and the upper computer 800 compares the received access card information with the stored access card information, and sends an instruction signal for opening the knife mechanism box 100 to the first control module according to the comparison result, an operation instruction for entering the power off/on mode input by a guardian, a built-in power off/on program, and a recognition result of the first neural network model. The opening and closing indicator lamp 202 is arranged outside the knife switch mechanism box control module 200, and indicates the opening and closing states of the knife switch of the touch net wire through the on and off of the opening indicator lamp 203 and the closing indicator lamp 202.
The first electromagnetic lock 101 is unlocked in accordance with a command signal for opening the blade mechanism case 100 transmitted from the first control module.
The knife mechanism box power down protection device 102 is used to close the door of the knife mechanism box 100 in the event of a power outage to the first control module.
The first inching limit travel switch 103 is used for detecting the opening/closing state of the door of the knife switch mechanism box and sending a knife switch mechanism box opening/closing state signal to the upper computer 800 through the first control module according to the detection result.
As shown in fig. 4A and 4B, in the embodiment of the present invention, a power-on-position limit switch 104 and a power-off-position limit switch 105, which are in signal connection with the first control module, are disposed at the top of the knife mechanism box; a stop block is fixedly arranged at the bottom of the rotating rod and is positioned between the power-on and power-off in-place limit switches 105; by rotating the rotating rod, the stop block triggers the power transmission in-place limit switch 104 and the power failure in-place limit switch 105 to generate corresponding power transmission in-place signals and power failure in-place signals; and sending the power-on in-place signal and the power-off in-place signal to the upper computer 800 through the first control module.
In the power-off operation of the embodiment of the present invention, after the worker swipes the switch blade mechanism box 100 to perform the power-off operation, the switch blade mechanism box 100 is closed. After the upper computer 800 receives a switch mechanism box opening state signal sent by a first inching limit travel switch 103 (in the embodiment, the model of the first inching limit travel switch 103 is YBLX-ME-8108), if the power-off in-place signal is not received within a set time (the power-off operation of an operator is not in place), the upper computer generates an alarm signal (such as an audible and visual alarm), and the switch mechanism box 100 is closed through a first electromagnetic lock 101; finally, the upper computer 800 stops working, that is, does not respond to the received entrance guard card information any more, so that the ground rod lock box 300 and the ground wire lock box 400 cannot be opened subsequently, and the roof inspection platform door cannot be opened. The ground rod can be prevented from being hung or the roof maintenance platform can be climbed to carry out maintenance operation under the condition that the contact net wire is provided with points, safety accidents are prevented from occurring, and the life safety of workers is guaranteed.
If the upper computer 800 does not receive the power transmission in-place signal within the set time after the operator punches the card to open the switch knife mechanism box 100 to perform the power transmission operation, the upper computer 800 generates an alarm signal.
Ground rod tool to lock case 300 is used for placing the ground rod. The ground rod lock box 300 further identifies whether the ground rod is placed in the ground rod lock box, and generates and sends an in-place/out-of-place signal of the ground rod to the upper computer 800 according to the identification result.
As shown in fig. 5, the ground bar locker box 300 comprises: the device comprises a hollow ground rod lock box body, a second control module 301, a second card reading module 302, a photoelectric switch 303, a second electromagnetic lock 304, a second micro limit travel switch 305 and a ground rod lock box power-down protection device 306, wherein the second card reading module 302, the photoelectric switch 303, the second electromagnetic lock 304, the second micro limit travel switch 305 and the ground rod lock box power-down protection device are in signal connection with the second control module 301;
one side of the ground bar locker box 300 forms a ground bar locker box door; a first opening hole 307/a second opening hole 308 is arranged between the top/bottom surface of the box body of the ground rod lock box and the box door of the ground rod lock box; the first opening 307 corresponds to the second opening 308, and the ground bar lock box is sleeved outside the ground bar through the first opening 307 and the second opening 308.
The second card reading module 302 is configured to identify an access card of an operator, and read access card information of the access card.
The second electromagnetic lock 304 is used for locking the door of the ground rod lock box.
The second control module 301 is configured to send the access card information read by the second card reading module 302 to the upper computer 800. The upper computer 800 compares the received access control card information with the stored access control card information, and sends an instruction signal for opening the ground rod lock box to the second control module 301 according to the comparison result, an operation instruction for entering the power-off/transmission mode input by the guardian, and a built-in power-off/transmission program. The second control module 301 drives the second electromagnetic lock 304 to unlock according to the instruction signal sent by the upper computer 800 for opening the ground rod lock box 300.
The photoelectric switch 303 is arranged in the grounding rod lock box body and used for identifying whether the grounding rod is placed in the grounding rod lock box body or not, and generating and sending an in-place/out-of-place signal of the grounding rod to the upper computer 800 according to an identification result.
The ground bar lockset box power loss protection device 306 is used to close the door of the ground bar lockset box 300 in the event of a power failure of the second control module 301.
The second inching limit travel switch 305 is used for detecting the opening/closing state of the door of the ground rod lock box and sending an opening/closing state signal of the ground rod lock box to the upper computer 800 through the second control module 301 according to the detection result.
The ground wire lockset box 400 is used for placing a ground wire, an operating head and a ground clip.
As shown in fig. 6 and 6A, the ground line lock box 400 includes: the third control module is in signal connection with the upper computer 800, and the third card reading module 402, the third electromagnetic lock 403, the third inching limit travel switch 404 and the ground wire lock box power-down protection device 405 are in signal connection with the third control module 401;
the third card reading module 402 is configured to identify an access card of an operator, and read access card information of the access card;
the third electromagnetic lock 403 is used for locking the door of the ground wire lock box 400;
the third control module 401 is configured to send the access card information read by the third card reading module 402 to the upper computer 800. The upper computer 800 compares the received access card information with the stored access card information, and sends a command signal for opening the ground wire lock box to the third control module 401 according to the comparison result, the operation command for entering the power off/transmission mode and the built-in power off/transmission program, which are input by the guardian. The third control module 401 drives the third electromagnetic lock 403 to unlock according to the instruction signal sent by the upper computer 800 for opening the ground wire lock box 400.
The ground wire lock box power-down protection device 405 is used for closing the box door of the ground wire lock box 400 under the condition that the third control module 401 is powered off;
the third inching limit travel switch 404 is used for detecting the opening/closing state of the door of the ground wire lock box and sending a signal of the opening/closing state of the ground wire lock box to the upper computer 800 through the third control module 401 according to the detection result.
The roof service platform is shown in figure 7. The roof service platform lock control module 500 is used for opening/closing a fourth electromagnetic lock 501 on a roof service platform door; a fourth inching limit travel switch (not shown in the figure) is also arranged on the car roof access platform door.
As shown in fig. 8, the roof service platform latch control module 500 includes: a fourth control module (not shown) and a fourth card reading module (not shown); the fourth control module is in signal connection with the upper computer 800, the fourth card reading module, the fourth inching limit travel switch and the fourth electromagnetic lock 501.
The fourth card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the fourth control module is used for sending the entrance guard card information read by the fourth card reading module to the upper computer 800. The upper computer 800 compares the received access card information with the stored access card information, and sends an instruction signal for opening the roof inspection platform door to the fourth control module according to the comparison result, the operation instruction for entering the power-off/power-on mode input by the guardian, the built-in power-off/power-on program and the recognition result of the third neural network model. The fourth control module drives the fourth electromagnetic lock 501 to unlock according to a command signal sent by the upper computer 800 for opening the car roof access platform door;
the fourth inching limit travel switch is used for detecting the opening/closing state of the roof access platform door and sending a roof access platform door opening/closing state signal to the upper computer 800 through the fourth control module according to the detection result. The communication module 900 is used for realizing signal transmission between the upper computer 800 and the first to fourth control modules.
The invention also provides a method for safely cutting off/transmitting power for overhauling and maintaining the subway vehicle, which is realized by adopting the system for safely cutting off/transmitting power for overhauling and maintaining the subway vehicle, as shown in figure 9, and the method comprises the following steps:
s1, the upper computer 800 verifies the operation authority of the operator and the guardian, and if the operation authority passes the verification, the operation enters S2;
s2, the guardian sequentially inputs an operation instruction to enter the power-off mode, to lower the bow (click on "lower bow" in fig. 9), and to open the knife mechanism box (click on "knife mechanism box (power-off)" in fig. 9) to the host computer 800; after an operator lowers a pantograph a12 of a vehicle to be overhauled, the operator swipes an access card to the knife switch mechanism box control module 200; if the pantograph a12 is identified as the pantograph descending state by the first neural network model, the upper computer 800 sends a command signal for opening the knife mechanism box, and the process goes to S3;
s3, opening a box door of the knife switch mechanism box, driving a rotating rod of a contact network cable isolating switch to rotate by an operator through the knife switch control mechanism, and entering a step S4 if the upper computer 800 receives a power-off in-place signal within set time; otherwise, go to S8;
s4, the guardian inputs an operation instruction for testing electricity of the touch screen wire to the upper computer 800 (clicking 'electricity testing' in figure 9), and the operator tests electricity of the touch screen wire of the station track to be powered off; if the touch cable is not electrified, the guardian confirms that the touch cable is not electrified to the upper computer 800; proceeding to S5;
s5, inputting a command signal for opening the grounding rod lock box into the upper computer 800 by a guardian (clicking the grounding rod in the figure 9), swiping an entrance guard card to the grounding rod lock box 300 by an operator, sending the command signal for opening the grounding rod lock box by the upper computer 800, taking out the grounding rod by the operator, and entering S6;
s6, the guardian inputs an instruction signal to the upper computer 800 to open the ground wire lock box (click "ground wire" in fig. 9), the operator swipes the access card to the ground wire lock box, and the upper computer 800 sends an instruction signal to open the ground wire lock box; a guardian inputs a command signal for hanging the grounding rod to the upper computer 800, and an operator assembles the grounding rod and hangs the grounding rod on the touch net wire; if the second neural network model identifies that the grounding rod is hung on the touch net wire, the step S7 is carried out; otherwise, go to S8;
s7, the guardian inputs a command signal to the host computer 800 to open the car roof access platform door (click the "car roof access platform door" in fig. 9); an operator swipes an access card to the lock control module of the car roof maintenance platform to perform maintenance operation;
and S8, the upper computer 800 stops working after generating an alarm signal.
As shown in fig. 10, the method for safely cutting off/supplying power for subway vehicle service and maintenance further comprises the following steps:
s9, the operator leaves the car roof overhaul platform, and the guardian inputs an operation instruction for entering a power transmission mode to the upper computer 800; if the third neural network model identifies that no personnel exist in the roof overhaul platform, the step S10 is carried out; otherwise, go to S14;
s10, the guardian inputs an operation instruction for removing the ground rod to the host computer 800 (click "remove ground rod" in fig. 10); an operator removes the grounding rod; if the second neural network model identifies that the grounding rod is not hung on the touch net wire, the step S11 is carried out; otherwise, go to S14;
s11, the guardian inputs an operation instruction to open the ground wire lock box to the host computer 800 (click the "ground wire" in fig. 10), the worker swipes the access card to open the ground wire lock box 400, and places the ground wire, the ground clip, and the operating head; the guardian inputs an operation instruction for opening the grounding rod lock box to the host computer 800 (clicking the grounding rod in fig. 10), and the worker swipes the access card to open the grounding rod lock box 300 and puts the grounding rod in; proceeding to S12;
s12, the guardian inputs an operation instruction to the host computer 800 to open the knife switch mechanism box (click "knife switch mechanism box (power transmission)" in fig. 10), the operator swipes an entrance guard card to the knife switch mechanism box control module 200 to open the knife switch mechanism box 100, and the rotating rod is driven to rotate by the knife switch control mechanism; if the upper computer 800 receives the power transmission in-place signal within the set time, the process goes to S13, otherwise, the process goes to S14;
s13, the guardian inputs an instruction to the host computer 800 to raise the pantograph (click "raise pantograph" in fig. 10), and the operator raises the pantograph a 12; if the first neural network model identifies that the pantograph a12 is in a pantograph lifting state, completing the power transmission operation of the touch network wire; otherwise, go to S14;
and S14, the upper computer 800 stops working after generating an alarm signal.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a system for subway vehicle overhauls maintains safe power transmission of cutting off, the inside plug-in strip control mechanism who is equipped with drive plug-in strip branch, combined floodgate of plug-in strip mechanism case, its characterized in that, the system contains:
the system comprises a plurality of image acquisition modules, a plurality of communication modules and a plurality of communication modules, wherein the image acquisition modules are used for acquiring first image information of a roof maintenance platform, second image information of a touch net wire and third image information of a pantograph of a vehicle to be maintained;
the host computer, it contains: a power cut/transmission program corresponding to a power cut/transmission operation flow of the touch wire, and trained first to third neural network models; the first neural network model is used for identifying whether a person exists on the roof overhaul platform; the second neural network model is used for identifying whether a grounding rod is hung on the touch net wire or not; the third neural network model is used for identifying the pantograph ascending/descending state of the pantograph of the vehicle to be overhauled;
a knife switch mechanism box control module;
the grounding rod lock box is used for placing a grounding rod of the grounding rod;
the ground wire lockset box is used for placing a ground clamp of a ground rod, an operating head and a ground wire;
the switch blade mechanism control module box, the grounding rod lock box and the grounding wire lock box can identify an access card of an operator and send read access card information to an upper computer; and the upper computer generates command signals for opening the switch blade mechanism box, the grounding rod lock box and the grounding wire lock box according to the operation command input by the guardian, the power-off/power-transmission program, the received access card information and the recognition results of the first to third neural network models.
2. The system for safely shutting down/supplying power for subway vehicle service maintenance as claimed in claim 1, further comprising an HMI input/output module for visually displaying said shutting down/supplying power operation flow, current operation; the guardian still passes through HMI input/output module inputs to the host computer operating instruction contains: entering an off/power transmission mode, lowering/lifting a bow, opening a knife switch mechanism box, a grounding rod lock box and a grounding wire lock box.
3. The system for subway vehicle service maintenance safety power cut/delivery as claimed in claim 1, wherein said knife gate mechanism box control module comprises: the device comprises a first card reading module, a first control module, a closing indicator lamp and an opening indicator lamp; the knife switch mechanism box also comprises a first control module, wherein the first control module is in signal connection with the knife switch mechanism box: the power failure protection device comprises a first electromagnetic lock, a knife switch mechanism box power failure protection device and a first micro-motion limit travel switch;
the first card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the first electromagnetic lock is used for locking a box door of the knife switch mechanism box;
the first control module is used for sending the entrance guard card information read by the first card reading module to the upper computer and receiving an instruction signal sent by the upper computer for opening the knife switch mechanism box to drive the first electromagnetic lock to unlock;
the switching-off and switching-on indicating lamp is used for indicating the switching-off and switching-on states of the network cable knife;
the power-down protection device of the switch blade mechanism box is used for closing a box door of the switch blade mechanism box under the condition that the first control module is powered off;
the first inching limit travel switch is used for detecting the opening/closing state of the door of the knife switch mechanism box and sending a knife switch mechanism box opening/closing state signal to the upper computer through the first control module according to a detection result.
4. The system for subway vehicle service maintenance safety power cut/delivery of claim 1, wherein said grounding rod lock box comprises: the device comprises a hollow ground rod lock box body, a second control module, a second card reading module, a photoelectric switch, a second electromagnetic lock, a second micro limit travel switch and a ground rod lock box power-off protection device, wherein the second card reading module, the photoelectric switch, the second electromagnetic lock, the second micro limit travel switch and the ground rod lock box power-off protection device are in signal connection with the second control module;
one side surface of the grounding rod lock box forms a grounding rod lock box door; a first opening/a second opening is formed between the top/bottom surface of the box body of the ground rod lock box and the box door of the ground rod lock box; the first opening corresponds to the second opening in position, and the grounding rod lock box is sleeved outside the grounding rod through the first opening and the second opening;
the second card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the second electromagnetic lock is used for locking a box door of the ground rod lock box;
the second control module is used for sending the entrance guard card information read by the second card reading module to the upper computer and driving the second electromagnetic lock to unlock according to the instruction signal sent by the upper computer for opening the ground rod lock box;
the photoelectric switch is arranged in the grounding rod lock box body and used for identifying whether the grounding rod is placed in the grounding rod lock box body or not, and generating and sending a grounding rod in-place/out-of-place signal to an upper computer according to an identification result;
the ground rod lock box power-down protection device is used for closing a box door of the ground rod lock box under the condition that the second control module is powered off;
the second micro limit travel switch is used for detecting the opening/closing state of the door of the ground rod lock box and sending a signal of the opening/closing state of the ground rod lock box to the upper computer through the second control module according to the detection result.
5. The system for subway vehicle service maintenance safety power cut/delivery of claim 1, wherein said ground wire lock box comprises: the third control module is in signal connection with the upper computer, and the third card reading module, the third electromagnetic lock, the third inching limit travel switch and the ground wire lock box power-down protection device are in signal connection with the third control module;
the third card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the third electromagnetic lock is used for locking a box door of the grounding wire lockset box;
the third control module is used for sending the entrance guard card information read by the third card reading module to the upper computer and driving the third electromagnetic lock to unlock according to the instruction signal sent by the upper computer for opening the ground wire lock box;
the ground wire lockset box power-down protection device is used for closing a box door of the ground wire lockset box under the condition that the third control module is powered off;
the third inching limit travel switch is used for detecting the opening/closing state of the door of the ground wire lock box and sending a signal of the opening/closing state of the ground wire lock box to the upper computer through the third control module according to the detection result;
the grounding wire lockset box is also used for placing an operating head and a grounding clip of the grounding rod.
6. The system for safely cutting off/supplying power for overhauling and maintaining the subway vehicle as claimed in claim 1, wherein a power supply in-place limit switch and a power cut in-place limit switch in signal connection with the first control module are arranged at the top of the switch blade mechanism box; a stop block is fixedly arranged at the bottom of a rotating rod of the touch net wire isolating switch and is positioned between the power-on and power-off in-place limit switches; the rotating rod is driven by the switch blade control mechanism, so that the stop block triggers the power transmission in-place limit switch and the power failure in-place limit switch to generate corresponding power transmission in-place signals and power failure in-place signals; and sending the power transmission in-place signal and the power failure in-place signal to an upper computer through a first control module.
7. The system for subway vehicle service maintenance safety power cut/delivery as claimed in claim 1, further comprising a roof service platform lock control module for opening a fourth electromagnetic lock on the roof service platform door; a fourth inching limit travel switch is also arranged on the car roof access platform door;
roof overhauls platform tool to lock control module contains: the fourth control module and the fourth card reading module; the fourth control module is in signal connection with the upper computer, the fourth card reading module, the fourth inching limit travel switch and the fourth electromagnetic lock;
the fourth card reading module is used for identifying an access card of an operator and reading access card information of the access card;
the fourth control module is used for sending the entrance guard card information read by the fourth card reading module to the upper computer and driving the fourth electromagnetic lock to unlock according to the instruction signal sent by the upper computer for opening/closing the car roof access platform door;
and the fourth micro limit travel switch is used for detecting the opening/closing state of the roof access platform door and sending a roof access platform door opening/closing state signal to the upper computer through the fourth control module according to the detection result.
8. The system for safely disconnecting/transmitting power during overhaul and maintenance of subway vehicles as claimed in claim 1, further comprising a communication module, wherein signal transmission between the upper computer and the first to fourth control modules is realized through said communication module.
9. A method for safely cutting off/feeding power for subway vehicle maintenance and repair, which is implemented by using the system for safely cutting off/feeding power for subway vehicle maintenance and repair according to any one of claims 1 to 8, and is characterized by comprising the following steps:
s1, verifying the operation authority of the operator and the guardian by the upper computer, and entering S2 if the verification is passed;
s2, sequentially inputting operating instructions for entering a power-off mode, descending a bow and opening a knife switch mechanism box to the upper computer by a guardian; after an operator lowers a pantograph of a vehicle to be overhauled, swiping an access card to a control module of a switch blade mechanism box; if the pantograph is identified to be in a pantograph descending state by the first neural network model, the upper computer sends a command signal for opening the knife switch mechanism box, and the operation enters S3;
s3, opening a box door of the knife switch mechanism box, driving a rotating rod of a contact network cable isolating switch to rotate by an operator through the knife switch control mechanism, and entering a step S4 if the upper computer receives a power-off in-place signal within set time; otherwise, go to S8;
s4, inputting an operation instruction for testing electricity of the touch screen wire to the upper computer by a guardian, and testing electricity of the touch screen wire of the station track to be powered off by the operator; if the net touching wire is not electrified, the guardian confirms that the net touching wire is not electrified to the upper computer; proceeding to S5;
s5, inputting an instruction signal for opening the grounding rod lock box into an upper computer by a guardian, swiping an entrance guard card to the grounding rod lock box by an operator, sending the instruction signal for opening the grounding rod lock box by the upper computer, taking out the grounding rod by the operator, and entering S6;
s6, inputting a command signal for opening the grounding rod mechanism box into an upper computer by a guardian, swiping an access card to a grounding wire lock box by an operator, and sending the command signal for opening the grounding wire lock box by the upper computer; a guardian inputs a command signal for hanging the grounding rod to an upper computer, and an operator assembles the grounding rod and hangs the grounding rod on the touch net wire; if the second neural network model identifies that the grounding rod is hung on the touch net wire, the step S7 is carried out; otherwise, go to S8;
s7, inputting an instruction signal for opening the car roof access platform door to the upper computer by a guardian; an operator swipes an access card to the lock control module of the car roof maintenance platform to perform maintenance operation;
and S8, the upper computer stops working after generating an alarm signal.
10. The method for safely shutting down/supplying power for metro vehicle service maintenance according to claim 9, further comprising the steps of:
s9, the operator leaves the car roof overhaul platform, and the guardian inputs an operation instruction for entering a power transmission mode to the upper computer; if the third neural network model identifies that no personnel exist in the roof overhaul platform, the step S10 is carried out; otherwise, go to S14;
s10, inputting an operation instruction for taking down the grounding rod to the upper computer by a guardian; an operator removes the grounding rod; if the second neural network model identifies that the grounding rod is not hung on the touch net wire, the step S11 is carried out; otherwise, go to S14;
s11, a guardian inputs an operation instruction for opening the grounding wire lock box to the upper computer, and a worker swipes an entrance guard card to open the grounding wire lock box and puts a grounding wire, a grounding clip and an operating head in; a guardian inputs an operation instruction for opening the grounding rod lock box to the upper computer, and a worker swipes an entrance guard card to open the grounding rod lock box and puts the grounding rod into the lock box; proceeding to S12;
s12, inputting an operation instruction for opening the switch blade mechanism box by a guardian to an upper computer, swiping an access card to a switch blade mechanism box control module by the operator to open the switch blade mechanism box, and driving the rotating rod to rotate through the switch blade control mechanism; if the upper computer receives the power transmission in-place signal within the set time, the step enters S13, and if not, the step enters S14;
s13, the guardian inputs an operation instruction of pantograph lifting to the upper computer, and the operator lifts the pantograph; if the pantograph is identified to be in a pantograph lifting state by the first neural network model, completing power transmission operation of the touch network cable; otherwise, go to S14;
and S14, the upper computer stops working after generating an alarm signal.
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| CN113805524A (en) * | 2021-09-15 | 2021-12-17 | 北京铁道工程机电技术研究所股份有限公司 | Safety interlocking control system and method |
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| CN113805524A (en) * | 2021-09-15 | 2021-12-17 | 北京铁道工程机电技术研究所股份有限公司 | Safety interlocking control system and method |
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Application publication date: 20210611 |