Accurate control system and method for RGV motor vehicle

Abstract

The invention discloses an accurate control system and method for RGV power cars, which comprises tracks on which a plurality of RGV power cars are arranged, and a plurality of stations, and is characterized in that a plurality of arrayed RFID cards are arranged between the tracks, each RGV power car is provided with an RFID card reader, the RFID card reader is used for reading the information of the RFID cards, and the RFID cards are used for reading the information of the RGV power cars. The RGV motor vehicle operates according to a single-station mode, a free beat mode and a forced beat mode so that the RGV motor vehicle can move among different stations, a plurality of RFID cards are arranged on the ground, station information is stored through RFID card information, an RFID card reader on the RGV vehicle is used for reading the RFID cards so as to feed back position information of the RGV vehicle, and the position information of the RGV vehicle can be read through the RFID card reader. By using the position information, the system can accurately control one or more RGVs.

Description

Technical Field

[0001] The present invention relates to the technical field of RGV power vehicle control systems, and in particular to a precise control system and method for an RGV power vehicle. Background Art

[0002] The rail transport vehicle (RGV) consists of manual and automatic modes. Manual mode can be moved forward and backward by remote control. The automatic and self-developed dispatching system sends the target workstation, and the vehicle receives the corresponding signal and automatically goes to it. It automatically slows down and stops in the middle, and is equipped with radar detection. The existing RGV power vehicle is matched with a dedicated control system when it is controlled. The existing control system has poor control accuracy for the multi-position control operation of the RGV power vehicle, and people have conducted a lot of research on this. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a precise control system and method for an RGV power vehicle, which can solve the above-mentioned problems in the prior art.

[0004] The present invention is achieved through the following technical solutions: an RGV power vehicle precision control system of the present invention includes a track, multiple RGV power vehicles are arranged on the track, and also includes multiple workstations, characterized in that multiple arranged RFID cards are arranged between the tracks, and an RFID reader is arranged on the RGV power vehicle, and the RFID reader is used to read the RFID card information. The RGV power vehicle operates in single-unit mode, free beat mode and forced beat mode to realize the movement of the RGV power vehicle between different workstations.

[0005] Advantageously, the number of workstations provided is the same as the number of RGV power vehicles provided.

[0006] Advantageously, radars are arranged around the RGV power vehicle.

[0007] Advantageously, a column is provided on the workstation, which includes a completion button, a cancel button, an emergency stop, and a timer.

[0008] Advantageously, during the countdown, if the emergency stop button is pressed, the system stops the countdown and can be resumed by clicking it again, which is invalid during the positive timing.

[0009] Advantageously, the timer starts counting down under a forced beat, and the timer on each workstation is synchronized; the system starts counting up under a free beat.

[0010] Advantageously, in the single-unit mode, a specific vehicle can be designated to send a target workstation, and then the vehicle automatically moves, slows down, stops, reaches the target workstation, and completes the instruction after receiving it.

[0011] Beneficially, in the free beat, there are 9 workstations on site, the timing starts, the operator clicks the completion button after completing the work, and the timing ends; when all 10 workstations are completed, the system starts to send the next target workstation to each vehicle online; the vehicle automatically moves forward and stops after arriving; waiting for the next round of manual operation and completing the cycle.

[0012] Advantageously, a forced beat is used to send a countdown to the timer on each workstation. The countdown duration can be set. After the countdown ends, the system starts to send the next target workstation to each vehicle online; the vehicle automatically moves forward and stops after arriving; then the timer counts down again and starts the cycle.

[0013] An operating method of an RGV power vehicle precision control system includes an RFID card, the RFID card is used to store workstation information;

[0014] Step 1: If the current station is greater than the target station, the vehicle moves backwards; if the current station is less than the target station, the vehicle moves forward.

[0015] The second step is that during driving, the current workstation = target workstation + 1, the vehicle starts to slow down, the current workstation = target workstation, and the vehicle stops.

[0016] Further technical solutions,

[0017] The beneficial effects of the present invention are as follows: 1. The system can control the operation of multiple or single RGV power vehicles by setting a forced mode, a free beat mode and a single mode, with high efficiency.

[0018] Second, by setting up multiple RFID cards on the ground, and using the RFID card information to store the workstation information, the RFID card reader on the RGV trolley is used to read the RFID card to feedback the location information of the RGV trolley. Using this location information, the system can accurately control a single or multiple RGV trolleys.

[0019] 3. By comparing the workstation representative value on the RFID card with the target workstation, the RGV can be slowed down and stopped in advance before reaching the workstation, and the forward or backward movement of the RGV can be controlled by comparing the numerical values, which greatly improves the control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0021] Figure 1 It is an overall schematic diagram of a precise control system and method for an RGV power vehicle of the present invention;

[0022] Figure 2 for Figure 1 The working diagram of the forced mode of the RGV power vehicle;

[0023] Figure 3 for Figure 1 The working diagram of the free beat mode of the RGV power vehicle in the middle;

[0024] Figure 4 for Figure 1 Schematic diagram of the working mode of the RGV power vehicle in single mode. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4 As shown, the present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up, down, left, right, front and back directions of the projection relationship itself are consistent. An RGV power vehicle precision control system and method of the present invention includes a track, on which a plurality of RGV power vehicles are arranged. The RGV power vehicle is a prior art and can move along the track. It also includes a plurality of workstations, and the number of workstations is the same as the number of RGV power vehicles. A plurality of arranged RFID cards are arranged between the tracks. An RFID reader is arranged at the rear of the RGV power vehicle. The RFID reader is used to read the RFID card information to indirectly feedback the position information of the RGV power vehicle to the system. The RGV power vehicle operates in a single-unit mode, a free beat mode and a forced beat mode to realize the movement of the RGV power vehicle between different workstations.

[0026] Advantageously, the RFID card is also arranged on one side of the workstation.

[0027] Advantageously, in the specific setting, it is necessary to form a closed loop on the track or to hoist the RGV trolley located at the last workstation back to the initial workstation to realize the cyclic movement of multiple RGV trolleys.

[0028] Advantageously, the RGV power vehicle is equipped with radars around it to feedback obstacle avoidance information. The radar obstacle avoidance range is 1-3 meters in front or behind. It will slow down when obstacles are detected and stop when obstacles are detected within 1 meter.

[0029] Advantageously, a column is provided on the workstation, which includes a completion button, a cancel button, an emergency stop, and a timer.

[0030] Advantageously, during the countdown, if the emergency stop button is pressed, the system stops the countdown and can be resumed by clicking it again, which is invalid during the positive timing.

[0031] Advantageously, the working principle of the timer is as follows: under a forced beat, the system starts counting down, and the timer on each workstation is synchronized; under a free beat, the system starts counting up.

[0032] Advantageously, in the single-unit mode, a target workstation can be issued to a designated vehicle, and then the vehicle automatically moves, slows down, stops, reaches the target workstation, and completes the instruction after receiving the instruction.

[0033] Beneficially, in the free beat, there are 9 workstations on site, the timing starts, the operator clicks the completion button after completing the work, and the timing ends; when all 10 workstations are completed, the system starts to send the next target workstation to each vehicle online; the vehicle automatically moves forward and stops after arriving; waiting for the next round of manual operation and completing the cycle.

[0034] Advantageously, a forced beat is used to send a countdown to the timer on each workstation. The countdown duration can be set. After the countdown ends, the system starts to send the next target workstation to each vehicle online; the vehicle automatically moves forward and stops after arriving; then the timer counts down again and starts the cycle.

[0035] Advantageously, the RFID card is used to store the workstation information, and each RFID card of the workstation information is represented by a number, which can be arranged in order from small to large, that is, 1, 2, 3, etc., using numbers to represent the workstation information;

[0036] The current workstation > the target workstation, the vehicle moves backward;

[0037] Current workstation < target workstation, the vehicle moves forward;

[0038] While driving:

[0039] Current workstation = target workstation + 1, the vehicle starts to slow down;

[0040] Current workstation = target workstation, vehicle stops at arrival;

[0041] Advantageously, wherein the vehicle and the control system interact wirelessly via TCP.

[0042] Advantageously, the workstation column button signals are interacted via a UDP network cable.

[0043] When the system is specifically set up, it also includes an electric control box, in which a controller and a display screen are provided. The system runs in the controller, and the display screen can realize the multi-functional operation of the system by clicking the interactive pages on the screen.

[0044] The above are only specific implementation methods of the present invention, but the protection scope of the present invention is not limited to this. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention; therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. An RGV power vehicle precision control system, comprising a track, on which a plurality of RGV power vehicles are arranged, and a plurality of workstations, characterized in that: A plurality of arranged RFID cards are arranged between the tracks, and an RFID reader is arranged on the RGV power vehicle, and the RFID reader is used to read the RFID card information. The RGV power vehicle operates in single-unit mode, free beat mode and forced beat mode to realize the movement of the RGV power vehicle between different workstations.

2. According to claim 1, a RGV power vehicle precision control system is characterized in that: The number of workstations is the same as that of the RGV power vehicle.

3. The RGV power vehicle precision control system according to claim 1 is characterized in that: The RGV power vehicle is equipped with radars all around.

4. The RGV power vehicle precision control system according to claim 1 is characterized in that: A column is set on the workstation, which includes a completion button, a cancel button, an emergency stop, and a timer.

5. The RGV power vehicle precision control system according to claim 4 is characterized in that: During the countdown, press the emergency stop button to stop the countdown. Click it again to resume the countdown. It is invalid during the countdown.

6. The RGV power vehicle precision control system according to claim 5 is characterized in that: The timer starts counting down under forced beats, and the time is synchronized with the timer on each workstation; the system starts counting up under free beats.

7. The RGV power vehicle precision control system according to claim 6 is characterized in that: In single-unit mode, a specific vehicle can be designated to send the target workstation, and then the vehicle will automatically move, slow down, and stop to reach the target workstation after receiving the instruction to complete the instruction.

8. The RGV power vehicle precision control system according to claim 6 is characterized by: Free beat, there are multiple workstations on site, the countdown starts, the operator clicks the finish button after completing the work, and the countdown ends; when all workstations are completed, the system starts to send the next target workstation to each online vehicle; the vehicle automatically moves forward and stops after arriving; wait for the next round of manual operation and complete the cycle.

9. The RGV power vehicle precision control system according to claim 6 is characterized by: Forced beat, send countdown to the timer on each workstation, the countdown duration can be set, after the countdown ends, the system starts to send the next target workstation to each online vehicle; the vehicle automatically moves forward and stops after arriving; then the timer counts down again and starts the cycle.

10. A working method using a RGV power vehicle precision control system as claimed in any one of claims 1 to 9, characterized in that: It includes an RFID card, which is used to store workstation information. In the first step, if the current workstation is greater than the target workstation, the vehicle will move backwards; if the current workstation is less than the target workstation, the vehicle will move forward. In the second step, during driving, if the current workstation is equal to the target workstation + 1, the vehicle starts to slow down, and if the current workstation is equal to the target workstation, the vehicle will stop when it reaches the destination.

Images