Anti-collision system for electric locomotive of rail transportation system of haulage roadway under mine

Abstract

The utility model relates to the technical field of mining production, in particular to an anti-collision system for an electric locomotive of a rail transportation system of a mine underground haulage roadway, and aims to solve the problems that the electric locomotive is influenced by operation errors of personnel and the transportation cost is high because the conventional mine underground complex roadway rail electric locomotive generally adopts a manual driving electric locomotive mode in the ore transportation process. And collision accidents easily occur, so that the transportation and production safety and efficiency of the electric locomotive are reduced. The system comprises a power supply and a man-vehicle distance detection alarm and electric locomotive deceleration parking execution unit, when the distance between distance measurement base stations and the distance between the distance measurement base stations and a bracelet are smaller than a preset distance, the distance measurement base stations send signals to an alarm device to trigger sound-light alarm and send signals to an electric locomotive to control the electric locomotive to decelerate and stop, and a person wears the bracelet to generate vibration alarm. According to the method, the electric locomotives of the rail transportation system in the complex transportation roadway are effectively prevented from colliding with one another, and the electric locomotives and the operating personnel are effectively prevented from colliding with one another.

Description

Technical Field

[0001] This utility model relates to the field of mining production technology, specifically to an anti-collision system for electric locomotives in a rail transport system for underground mine transport roadways. Background Technology

[0002] In mining production, the mid-level surface transport system uses electric locomotives for rail transport. This system is responsible for transporting ore and waste rock in the mid-level area. It is equipped with variable frequency traction locomotives, and the roadways of the mid-level surface transport system consist of ore along-vein roads, waste rock along-vein roads, cross-vein roads, and circulation roads, making the transport system quite complex. Currently, the safe operation of the rail transport system faces the following main risks: First, the rail transport locomotives use traditional manual driving, resulting in long operating hours, high labor intensity for operators, and a poor underground working environment. Operators are prone to fatigue and burnout, and a lack of concentration. Furthermore, there are many development infrastructure projects to be built at the surface level, and many external construction workers pass through the rail transport roadways, posing challenges for personnel going up and down. The main passageways are prone to accidents causing injuries to personnel and vehicles; secondly, the transport lines have many intersections and crossings, creating blind spots. Due to the limited space in the underground roadways, the locomotive cab height is restricted, resulting in insufficient and limited visibility for the driver. This makes it difficult to spot the surrounding environment and personnel, increasing the risk of accidents involving vehicles and people when the locomotive passes through intersections; thirdly, the inherent safety level of the vehicles is not high, as no collision avoidance system for people and vehicles or other vehicles has been established through technical measures. When personnel or other vehicles appear in the operating area, the driver or the locomotive control system cannot obtain relevant information in a timely manner and take effective measures. Therefore, it is necessary to further optimize the collision avoidance system of the locomotive in the complex underground roadway rail locomotive transport system to ensure the safety and efficiency of mining transportation. Utility Model Content

[0003] This invention provides a locomotive anti-collision system for a rail transport system in an underground mine roadway, in order to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A locomotive anti-collision system for a rail transport system in an underground mine roadway includes a power supply, a personnel-vehicle distance detection and alarm unit, and a locomotive deceleration and stopping execution unit. The personnel-vehicle distance detection and alarm unit includes a second vehicle ranging base station, which is connected to a ranging vibration wristband and an audible and visual alarm. The locomotive deceleration and stopping execution unit includes a locomotive frequency converter and a locomotive braking system. The locomotive frequency converter is connected to the second vehicle ranging base station and also to the locomotive braking system.

[0006] Furthermore, the second vehicle ranging base station is also connected to the first vehicle ranging base station.

[0007] This utility model has the following beneficial effects:

[0008] This utility model provides a collision avoidance system for electric locomotives in a rail transport system for underground mine haulage roadways. It includes a power supply, a personnel-vehicle distance detection alarm, and an electric locomotive deceleration and stopping execution unit. When the distance between ranging base stations or between a ranging base station and a wristband is less than a preset distance, the ranging base station sends a signal to the alarm device to trigger an audible and visual alarm, and sends a signal to the electric locomotive to control its deceleration and stopping. Simultaneously, the personnel wearing the wristband generate a vibration alarm, reminding them to avoid the collision and prompting the driver to stop the electric locomotive. This effectively avoids the safety risks of collisions between electric locomotives and between electric locomotives and workers in complex haulage roadways. It solves the problem that currently, in the process of transporting ore in complex underground mine roadways, the commonly used manual driving mode of electric locomotives makes them susceptible to collisions due to human error, leading to reduced safety and efficiency in electric locomotive transportation.

[0009] This invention employs UWB active ranging and positioning technology to monitor the situation of people and vehicles around the locomotive in real time. When the safe distance between vehicles or between vehicles and people is less than the set distance, the ranging base station and wristband generate audible and visual alarm signals and vibration signals to remind the driver and operators to stop and avoid the vehicle. At the same time, automatic control technology is used to control the locomotive's frequency converter and braking system to achieve automatic deceleration and stopping of the locomotive. This avoids the risk of vehicle and personnel injury caused by driver fatigue, lack of concentration, and limited vision, greatly improving the inherent safety level of the rail transport system and eliminating the occurrence of vehicle collisions and vehicle-related injuries. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall system structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the internal structure connection of the overall system of this utility model.

[0012] The meanings of the reference numerals in the attached figures are as follows:

[0013] 1. Collision avoidance system; 2. Power supply; 3. Pedestrian and vehicle distance detection and alarm unit; 4. Locomotive deceleration and parking execution unit; 5. Distance measuring vibration wristband; 6. First vehicle distance measuring base station; 7. Second vehicle distance measuring base station; 8. Audible and visual alarm; 9. Locomotive frequency converter; 10. Locomotive braking system. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-2 As shown, a locomotive anti-collision system for a rail transport system in an underground mine transport roadway includes a power supply 2, a pedestrian-vehicle distance detection and alarm unit 3, and a locomotive deceleration and stopping execution unit 4. The pedestrian-vehicle distance detection and alarm unit 3 includes a second vehicle ranging base station 7, which is connected to a ranging vibration wristband 5 and an audible and visual alarm 8. The locomotive deceleration and stopping execution unit 4 includes a locomotive frequency converter 9 and a locomotive braking system 10. The locomotive frequency converter 9 is connected to the second vehicle ranging base station 7, and the locomotive frequency converter 9 is also connected to the locomotive braking system 10.

[0016] The second vehicle ranging base station 7 is also connected to the first vehicle ranging base station 6.

[0017] In practical application, the power supply 2 provides DC24V power to the personnel and vehicle detection and alarm unit 3. The personnel and vehicle distance detection and audible and visual alarm unit 3 includes two first vehicle ranging base stations 6 and one second vehicle ranging base station 7, a ranging vibration wristband 5, and an audible and visual alarm 8. The first vehicle ranging base stations 6 and 7 are installed in the front, left, and right directions of the locomotive cab to detect personnel and vehicles within a certain distance range in front of the locomotive, along the left and right sides, and at road junctions. Each person in the locomotive's operating area is equipped with one ranging vibration wristband 5, worn on their wrist. The ranging vibration wristband 5 is electrically connected to the first vehicle ranging base stations 6 and 7 via wireless communication and ranging positioning technology. The audible and visual alarm 8 is electrically connected to the first vehicle ranging base stations 6 and 7 via cables. The distance between the first vehicle ranging base stations 6 and 7 of the front and rear locomotives, between the first vehicle ranging base stations 6 and 7, and between the personnel ranging vibration wristband 8 is also connected. The distance between the handbands 5 is detected in real time. When the detected distance is less than the alarm distance set by the system, the first vehicle ranging base station 6 and the second vehicle ranging base station 7 trigger the audible and visual alarm 8 to generate an audible and visual alarm signal. At the same time, the ranging vibration handband 5 worn by the personnel generates a vibration alarm signal to remind the locomotive driver to "stop" and the on-site personnel to "avoid". The locomotive deceleration and parking execution unit 4 includes a locomotive frequency converter 9 and a locomotive braking system 10. The locomotive frequency converter 9 controls the locomotive's operation and parking by controlling the locomotive motor speed and operating status. The locomotive braking system 10 is used to assist the locomotive in deceleration, braking and parking. The locomotive deceleration and parking execution unit 4 is electrically connected to the two first vehicle ranging base stations 6 and one second vehicle ranging base station 7 of the locomotive through cables. When the detected distance between the locomotives or between the locomotive and the personnel is less than the alarm distance set by the system, the first vehicle ranging base station 6 and the second vehicle ranging base station 7 send a deceleration and parking signal to the locomotive deceleration and parking execution unit 4.

[0018] Furthermore, the first vehicle ranging base station 6 and the second vehicle ranging base station 7 installed on different railcars, as well as the first vehicle ranging base station 6 and the second vehicle ranging base station 7 on the railcars and the ranging vibration wristband 5 worn by personnel, exchange information via UWB wireless communication. The first vehicle ranging base station 6 and the second vehicle ranging base station 7 installed in the front, left, and right directions of the railcar are electrically connected to the audible and visual alarm 8 and the railcar deceleration and stopping execution unit 4 via cables. The railcar-mounted ranging base station performs real-time distance detection with the first vehicle ranging base station 6 and the second vehicle ranging base station 7 on other railcars operating in the same area, as well as the ranging vibration wristband 5 worn by personnel. When the real-time detection distance between a person and a railcar, or between railcars, is less than the set 50m, The ranging vibration wristband 5 worn by personnel generates a vibration alarm signal, reminding the rail locomotive driver and operators to avoid or stop. The first vehicle ranging base station 6 and the second vehicle ranging base station 7 send an electrical signal to the audible and visual alarm 8 to trigger the alarm, reminding the rail locomotive driver that there are personnel and other trains in the locomotive's operating area and to stop. On the other hand, the first vehicle ranging base station 6 and the second vehicle ranging base station 7 send an electrical signal to the locomotive deceleration and stopping execution unit 4, which automatically controls the locomotive to decelerate and stop, thereby avoiding collisions between personnel and vehicles, and between vehicles. This effectively avoids the safety risks of collisions between locomotives and between locomotives and operators in complex transport lane rail transport systems. Therefore, this system has good practicality.

Claims

1. A locomotive anti-collision system for a rail transport system in an underground mine transport roadway, characterized in that: The system includes a power supply (2), a vehicle-person distance detection and alarm unit (3), and a locomotive deceleration and parking execution unit (4). The vehicle-person distance detection and alarm unit (3) includes a second vehicle ranging base station (7). The second vehicle ranging base station (7) is connected to a ranging vibration wristband (5) and an audible and visual alarm (8). The locomotive deceleration and parking execution unit (4) includes a locomotive frequency converter (9) and a locomotive braking system (10). The locomotive frequency converter (9) is connected to the second vehicle ranging base station (7), and the locomotive frequency converter (9) is also connected to the locomotive braking system (10).

2. The locomotive anti-collision system for a rail transport system in an underground mine transport roadway according to claim 1, characterized in that: The second vehicle ranging base station (7) is also connected to the first vehicle ranging base station (6).

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