Distributed maintenance line detection data processing method

Abstract

The invention discloses a distributed maintenance line detection data processing method. The method comprises the following steps: starting signal transmitters of electronic fences on two sides of an AGV (Automatic Guided Vehicle) advancing route in a maintenance line; the controller starts the AGVs to run in the distributed maintenance line and monitors the positions of the AGVs in real time; the tool car moves in the maintenance line along with the personnel and monitors an electronic fence signal in real time; judging whether an electronic fence signal is received or not; the controller judges whether the AGV working area needs to be traversed or not according to the result of the judgment process of traversing the AGV working area; the tool car judges the relative position of the tool car and the AGV operation area according to the number of the received signals and moves to a preparation position for passing through the AGV operation area; the tool car moves to the edge position of the AGV operation area from the preparation position; the controller detects the next passable time point of the current position of the tool car and sends a clock signal to the tool car; the tool car passes through the AGV operation area when the reading of the received clock signal is completed; the tool car continues to follow the user.

Description

Technical Field

[0001] The invention relates to the field of equipment maintenance, and in particular to a distributed maintenance line detection data processing method. Background Art

[0002] An electric locomotive is a vehicle that obtains electricity from a power supply grid or power rail and then drives the vehicle through an electric motor. The vehicle's technical structure and maintenance quality are decisive factors in ensuring driving safety, especially the maintenance of the braking part of the electric locomotive is crucial.

[0003] Traditional maintenance lines are often based on AGV trolley transportation, while personnel perform maintenance work at fixed locations. Especially when the machine being repaired is large, there is often a certain labor risk in personnel transportation and it will increase additional costs. In this case, AGV transportation is more necessary. However, since the electric locomotive is a large device being repaired, maintenance personnel are required to move within the maintenance line. Since there are many maintenance tools required for power maintenance, a tool cart is required to carry the maintenance tools in this case. In scenarios with a high degree of automation, the maintenance tool cart automatically moves with the personnel. However, since the movement of personnel needs to cross the AGV's operating route, the maintenance tool cart may cause a risk of collision with the AGV cart.

[0004] Patent CN114104631B discloses a bogie maintenance line for urban rail vehicles, which mainly includes a frame maintenance line, a frame component maintenance line, a wheelset maintenance line, a wheelset overhaul line, an intelligent logistics transportation line, and an intelligent storage and picking line, that is, the bogie disassembly and assembly, the automated maintenance of the frame, the intelligent maintenance of the wheelset, and the intelligent overhaul of the wheelset are realized in the form of an assembly line; the intelligent storage, intelligent transportation, and intelligent picking of materials are realized; and the maintenance line data information is realized in real time. The technical problems of unreasonable distribution of maintenance areas, conflicts in process technology, serious loss of production capacity, and low efficiency in the prior art are solved.

[0005] This technical solution has a high overall degree of automation, but does not take personnel scheduling issues into consideration.

[0006] A distributed maintenance line detection data processing method is now needed to solve the above problems. Summary of the invention

[0007] The present invention aims to solve the problem that in the prior art, power maintenance requires a large number of maintenance tools. In this case, a mobile tool cart is needed to carry the maintenance tools. However, since personnel movement needs to pass through the operating route of the AGV, the maintenance tool cart may cause the risk of collision with the AGV cart. A distributed maintenance line detection data processing method is provided to solve the above problem.

[0008] The present invention provides a distributed maintenance line detection data processing method, comprising the following steps:

[0009] S1, start the signal transmitter of the electronic fence on both sides of the AGV route in the maintenance line;

[0010] S2, the controller starts the AGV vehicle to run in the distributed maintenance line and monitors the position of each AGV vehicle in real time;

[0011] S3. The tool vehicle moves along the maintenance line with the personnel and monitors the electronic fence signal in real time;

[0012] S4, the tool vehicle determines whether it receives the electronic fence signal, if yes, it goes to step S5, otherwise it goes to step S10;

[0013] S5, the tool vehicle sends an electronic fence signal to the controller, and the controller determines whether it needs to cross the AGV work area according to the result of the judgment process of crossing the AGV work area. If yes, it proceeds to step S6, otherwise it continues to step S10 at a position outside the electronic fence coverage area;

[0014] S6, the tool vehicle determines the relative position to the AGV operation area according to the number of received signals and moves to the preparation position for crossing the AGV operation area;

[0015] S7, the tool cart moves from the preparation position to the edge of the AGV operation area;

[0016] S8, the controller detects the next passable time point at the current position of the tool vehicle, and sends a clock signal to the tool vehicle;

[0017] S9, the tool cart passes through the AGV operation area when the received clock signal reading is completed;

[0018] S10: The tool cart continues to follow the user.

[0019] The distributed maintenance line detection data processing method described in the present invention is, as a preferred method, a judgment process of crossing the AGV working area is specifically as follows:

[0020] Based on the received user position signal and the edge position signal and center line signal of the AGV operation area, it is determined whether the user is on the other side of the center line of the AGV operation area relative to the tool cart. If so, it is determined that the user needs to cross the AGV operation area, otherwise, it is not necessary to cross the AGV operation area.

[0021] A distributed maintenance line detection data processing method described in the present invention, as a preferred embodiment, the controller includes a maintenance area map module, a personnel location module, an AGV operation module, a tool vehicle crossing module and a tool vehicle control module;

[0022] The personnel location module is used to receive the user's location in the maintenance line and send it to the maintenance area map module;

[0023] The AGV operation module sets the AGV operation line in the maintenance area map module based on the operation track of the AGV. The operation track includes two vehicle travel boundaries and a travel center line, and collects the speed and position information of each AGV vehicle at the same time;

[0024] The maintenance area map module is used to determine the current location of the tool vehicle based on the AGV operation module and the personnel location module, and to determine whether the tool vehicle needs to cross the AGV operation area based on the location;

[0025] The tool vehicle crossing module is used to retrieve the determination information of the current tool vehicle from the maintenance area map module when receiving the electronic fence signal;

[0026] The tool cart control module controls the preparation and execution procedures of the tool cart passing through the AGV operation track.

[0027] The distributed maintenance line detection data processing method described in the present invention is preferably implemented in step S6 as follows:

[0028] When the tool cart receives two electronic fence signals at the same time, the position where the signal is received is used as the moving base point on the signal range of an electronic fence signal, and the direction close to the operator is chosen to turn sideways, and the electronic fence signal is received in real time and moved. After moving along the edge of an electronic fence signal, another corresponding overlapping point where two electronic fence signals are received at the same time is found as the symmetrical point of the moving base point, and the midpoint is taken at the edge of the electronic fence signal between the two, and the tool cart moves to the midpoint, and at the midpoint position, it turns toward the direction of the AGV operating area in the vertical line of the tangent.

[0029] A distributed maintenance line detection data processing method described in the present invention is, as a preferred embodiment, that the signal range of each transmitter in the electronic fence is 1.675 times the width of the AGV operating area, and the transmitters arranged on both sides of the AGV operating area are evenly staggered.

[0030] The beneficial effects of the present invention are as follows:

[0031] This technical solution adopts a two-stage preparation procedure. Based on the electronic fence as the judgment basis, preparation can begin when the tool cart enters the AGV operation area. At the same time, the position confirmation is based on the transmitter acquisition rather than the positioning sensor, which is more accurate. The scheduling of this maintenance line is through the active position confirmation of the tool cart, and then automatically moves to the preparation position based on the ground signal and the set length data, which has better accuracy. The tool cart travels based on the shortest path to reduce interference with the operation of the AGV. A two-stage travel procedure is used to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a flow chart of a distributed maintenance line detection data processing method. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1

[0035] like Figure 1 As shown, a distributed maintenance line detection data processing method includes the following steps:

[0036] S1, start the signal transmitter of the electronic fence on both sides of the AGV route in the maintenance line;

[0037] S2, the controller starts the AGV vehicle to run in the distributed maintenance line and monitors the position of each AGV vehicle in real time;

[0038] S3. The tool vehicle moves along the maintenance line with the personnel and monitors the electronic fence signal in real time;

[0039] S4, the tool vehicle determines whether it receives the electronic fence signal, if yes, it goes to step S5, otherwise it goes to step S10;

[0040] S5, the tool vehicle sends an electronic fence signal to the controller, and the controller determines whether it needs to cross the AGV work area according to the result of the judgment process of crossing the AGV work area. If yes, it proceeds to step S6, otherwise it continues to step S10 at a position outside the electronic fence coverage area;

[0041] S6, the tool vehicle determines the relative position to the AGV operation area according to the number of received signals and moves to the preparation position for crossing the AGV operation area;

[0042] S7, the tool cart moves from the preparation position to the edge of the AGV operation area;

[0043] S8, the controller detects the next passable time point at the current position of the tool vehicle, and sends a clock signal to the tool vehicle;

[0044] S9, the tool cart passes through the AGV operation area when the received clock signal reading is completed;

[0045] S10: The tool cart continues to follow the user.

[0046] The specific judgment process of crossing the AGV work area is as follows:

[0047] Based on the received user position signal and the edge position signal and center line signal of the AGV operation area, it is determined whether the user is on the other side of the center line of the AGV operation area relative to the tool cart. If so, it is determined that the user needs to cross the AGV operation area, otherwise, it is not necessary to cross the AGV operation area.

[0048] The controller includes a maintenance area map module, a personnel location module, an AGV operation module, a tool vehicle crossing module, and a tool vehicle control module;

[0049] The personnel location module is used to receive the user's location in the maintenance line and send it to the maintenance area map module;

[0050] The AGV operation module sets the AGV operation line in the maintenance area map module based on the operation track of the AGV. The operation track includes two vehicle travel boundaries and a travel center line, and collects the speed and position information of each AGV vehicle at the same time;

[0051] The maintenance area map module is used to determine the current location of the tool vehicle based on the AGV operation module and the personnel location module, and to determine whether the tool vehicle needs to cross the AGV operation area based on the location;

[0052] The tool vehicle crossing module is used to retrieve the determination information of the current tool vehicle from the maintenance area map module when receiving the electronic fence signal;

[0053] The tool cart control module controls the preparation and execution procedures of the tool cart passing through the AGV operation track.

[0054] Step S6 is specifically as follows:

[0055] When the tool cart receives two electronic fence signals at the same time, the position where the signal is received is used as the moving base point on the signal range of an electronic fence signal, and the direction close to the operator is chosen to turn sideways, and the electronic fence signal is received in real time and moved. After moving along the edge of an electronic fence signal, another corresponding overlapping point where two electronic fence signals are received at the same time is found as the symmetrical point of the moving base point, and the midpoint is taken at the edge of the electronic fence signal between the two, and the tool cart moves to the midpoint, and at the midpoint position, it turns toward the direction of the AGV operating area in the vertical line of the tangent.

[0056] The signal range of each transmitter in the electronic fence is 1.675 times the width of the AGV operating area, and the transmitters on both sides of the AGV operating area are evenly staggered.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distributed maintenance line detection data processing method, characterized in that: The following steps are involved: S1, start the signal transmitter of the electronic fence on both sides of the AGV route in the maintenance line; S2, the controller starts the AGV vehicle to run in the distributed maintenance line and monitors the position of each AGV vehicle in real time; S3. The tool vehicle moves along the maintenance line with the personnel and monitors the electronic fence signal in real time; S4, the tool vehicle determines whether it receives the electronic fence signal, if yes, it goes to step S5, otherwise it goes to step S10; S5, the tool vehicle sends an electronic fence signal to the controller, and the controller determines whether it needs to cross the AGV work area according to the result of the judgment process of crossing the AGV work area. If yes, it proceeds to step S6, otherwise it continues to step S10 at a position outside the electronic fence coverage area; S6, the tool vehicle determines the relative position to the AGV operation area according to the number of received signals and moves to the preparation position for crossing the AGV operation area; S7, the tool cart moves from the preparation position to the edge of the AGV operation area; S8, the controller detects the next passable time point at the current position of the tool vehicle, and sends a clock signal to the tool vehicle; S9, the tool cart passes through the AGV operation area when the received clock signal reading is completed; S10: The tool cart continues to follow the user.

2. A distributed maintenance line detection data processing method according to claim 1, characterized in that: The specific judgment process of crossing the AGV working area is as follows: Based on the received user position signal and the edge position signal and center line signal of the AGV operation area, it is determined whether the user is on the other side of the center line of the AGV operation area relative to the tool cart. If so, it is determined that the user needs to cross the AGV operation area, otherwise, it is not necessary to cross the AGV operation area.

3. A distributed maintenance line detection data processing method according to claim 1, characterized in that: The controller includes a maintenance area map module, a personnel location module, an AGV operation module, a tool vehicle crossing module and a tool vehicle control module; The personnel location module is used to receive the user's location in the maintenance line and send it to the maintenance area map module; The AGV operation module sets the AGV operation line in the maintenance area map module based on the operation track of the AGV vehicle. The operation track includes two vehicle travel boundaries and a travel center line, and collects the speed and position information of each AGV vehicle at the same time; The maintenance area map module is used to determine the current location of the tool vehicle based on the AGV operation module and the personnel location module, and to determine whether the tool vehicle needs to cross the AGV operation area based on the location; The tool vehicle crossing module is used to retrieve the determination information of the current tool vehicle from the maintenance area map module when receiving the electronic fence signal; The tool cart control module controls the preparation procedure and execution procedure of the tool cart passing through the AGV running track.

4. A distributed maintenance line detection data processing method according to claim 1, characterized in that: The step S6 is specifically as follows: When the tool cart receives two electronic fence signals at the same time, the position where the signal is received is used as the moving base point on the signal range of an electronic fence signal, and the direction closer to the operator is chosen to turn sideways, the electronic fence signal is received in real time and moves, and after moving along the edge of an electronic fence signal, another corresponding overlapping point where two electronic fence signals are received at the same time is found as the symmetrical point of the moving base point, the midpoint of the electronic fence signal edge between the two is taken, and the tool cart moves to the midpoint, and at the midpoint position, it turns in the direction of the AGV operating area in the vertical line of the tangent.

5. A distributed maintenance line detection data processing method according to claim 1, characterized in that: The signal range of each transmitter in the electronic fence is 1.675 times the width of the AGV operation area, and the transmitters arranged on both sides of the AGV operation area are evenly staggered.

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