Train coming early warning device for railway pre-inspection operation field

Abstract

The utility model relates to a railway early warning device, in particular to a train coming early warning device for a railway pre-inspection operation field, and aims to solve the problems that an existing early warning device cannot distinguish to-be-overhauled vehicles coming on different rails, and misinformation is prone to occurring. A proximity sensor and a geomagnetic sensor are arranged on the inner side of a steel rail side by side; the proximity sensor is used for generating a proximity sensing signal when wheels of a train approach; the geomagnetic sensor is used for generating a geomagnetic sensing signal when wheels of a train approach; the controller is used for receiving the proximity sensing signal and the geomagnetic sensing signal; when the proximity sensing signal and the geomagnetic sensing signal are received at the same time, an early warning sound signal is generated; and the loudspeaker is used for receiving the early warning sound signal and performing voice broadcast according to the early warning sound signal. The method has the beneficial effects of no false alarm and high early warning accuracy.

Description

Technical Field

[0001] The utility model relates to a railway early warning device. Background Art

[0002] The pre-inspection work yard is a work station before the formal maintenance, which is responsible for pre-inspection of the car body to be inspected in order to confirm the location of the train fault; before the operation begins, a shunting machine is needed to push the vehicle to be inspected into the pre-inspection work yard, and the vehicle is pulled out when the pre-inspection operation is completed; when the shunting operation pushes the car body, the staff of the pre-inspection work yard needs to be notified in time to pay attention to safety and evacuate the shunting line in time; and for multiple tracks, the existing early warning device cannot distinguish between vehicles to be inspected on different tracks, which is prone to false alarms and cannot accurately warn. Utility Model Content

[0003] The utility model aims to solve the problem that the existing early warning device cannot distinguish the vehicles to be inspected coming on different tracks and is prone to false alarms, and proposes an early warning device for the arrival of trains in a railway pre-inspection operation field.

[0004] The utility model discloses a railway pre-inspection operation field train approaching warning device, which comprises a controller, a proximity sensor, a geomagnetic sensor and a speaker;

[0005] The proximity sensor and the geomagnetic sensor are arranged side by side on the inner side of the rail; the proximity sensor is used to generate a proximity sensing signal when the wheels of the train approach; the geomagnetic sensor is used to generate a geomagnetic sensing signal when the wheels of the train approach;

[0006] The controller is used to receive a proximity sensor signal and a geomagnetic sensor signal; and when the proximity sensor signal and the geomagnetic sensor signal are received at the same time, generate a warning sound signal;

[0007] The loudspeaker is used to receive the warning sound signal and make a voice announcement according to the warning sound signal.

[0008] Furthermore, the early warning device also includes an indicator light;

[0009] The controller also generates a warning light signal when receiving a proximity sensor signal and a geomagnetic sensor signal simultaneously;

[0010] The indicator light is used to receive the early warning light signal and flash to give a warning according to the early warning light signal.

[0011] Furthermore, the indicator light is installed on the glass window above the maintenance warehouse door.

[0012] Furthermore, the loudspeaker is arranged on the building of the pre-inspection work site, or the loudspeaker 4 is arranged on the outside of the rail in the form of a vertical pole.

[0013] Furthermore, the model of the controller is STM32115;

[0014] The warning sound signal output terminal of the controller is connected to the warning sound signal input terminal of the speaker in a wireless connection manner.

[0015] Furthermore, the controller, the proximity sensor and the geomagnetic sensor are arranged in the same protective shell, and the operating temperature range of the protective shell is: -40°C to 80°C.

[0016] The beneficial effects of the utility model are as follows: the early warning device utilizes the metal wheels to generate different types of sensor signals when passing through the proximity sensor and the geomagnetic sensor, respectively, to prevent a single sensor from generating a false alarm, and utilizes the wireless transmission technology and the audio control technology to realize the intelligent perception of the approaching train, track identification, wireless transmission and real-time sound and light alarm; the early warning device can distinguish the vehicles to be inspected approaching on different tracks, and will not generate false alarms, and the accuracy of the early warning is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a principle block diagram of a train approach warning device for a railway pre-inspection operation field according to a specific implementation mode 1;

[0018] Figure 2 This is a diagram of the installation positions of the proximity sensor and the geomagnetic sensor in the first specific implementation mode. DETAILED DESCRIPTION

[0019] Specific implementation method 1. Combination Figure 1 to Figure 2 The present embodiment is described as a railway pre-inspection operation field train approaching warning device, the warning device comprises a controller 1, a proximity sensor 2, a geomagnetic sensor 3 and a speaker 4;

[0020] The proximity sensor 2 and the geomagnetic sensor 3 are arranged side by side on the inner side of the rail 6; the proximity sensor 2 is used to generate a proximity sensing signal when the wheels of the train approach; the geomagnetic sensor 3 is used to generate a geomagnetic sensing signal when the wheels of the train approach;

[0021] The controller 1 is used to receive a proximity sensor signal and a geomagnetic sensor signal; and when the proximity sensor signal and the geomagnetic sensor signal are received at the same time, generate a warning sound signal;

[0022] The loudspeaker 4 is used to receive the warning sound signal and make a voice announcement according to the warning sound signal.

[0023] In this embodiment, the proximity sensor signal input end of the controller 1 is connected to the proximity sensor signal output end of the proximity sensor 2; the geomagnetic sensor signal input end of the controller 1 is connected to the geomagnetic sensor signal output end of the geomagnetic sensor 3; the warning sound signal output end of the controller 1 is connected to the warning sound signal input end of the speaker 4; the proximity sensor 2 and the geomagnetic sensor 3 are used to effectively sense metal objects above the rail 6; the passing of wheels can be effectively sensed to avoid false alarms; the speaker 4 voice broadcasts the operation line number; the entire railway pre-inspection operation site uses 6 outdoor tweeters 4, 1 speaker control host, 5 proximity sensors 2 and 5 geomagnetic sensors 3 according to the on-site environment (5 tracks, 5 warehouse doors); at the same time, the controller 1 adopts active power supply, and the controller 1 is integrated with a wireless communication module or supports 4g lora or wired communication.

[0024] In a preferred embodiment, the warning device further includes an indicator light 5;

[0025] The controller 1 also generates a warning light signal when receiving a proximity sensor signal and a geomagnetic sensor signal at the same time;

[0026] The indicator light 5 is used to receive the warning light signal and flash to give a warning according to the warning light signal.

[0027] In this embodiment, the warning light signal output end of the controller 1 is connected to the warning light signal input end of the indicator light 5; the warning of the indicator light 5 and the warning of the speaker 4 are generated synchronously to inform the on-site operating personnel of the approaching information of the shunting locomotive, and 5 indicator lights are installed in the entire railway pre-inspection operation site according to the on-site environment.

[0028] In a preferred embodiment, the indicator light 5 is installed on the glass window above the maintenance warehouse door.

[0029] In a preferred embodiment, the loudspeaker 4 is disposed on a building of the pre-inspection work site, or the loudspeaker 4 is disposed on the outside of the rail 6 in the form of a vertical pole.

[0030] In a preferred embodiment, it is characterized in that the model of the controller 1 is STM32l15;

[0031] The warning sound signal output terminal of the controller 1 is connected to the warning sound signal input terminal of the speaker 4 in a wireless connection manner.

[0032] In this embodiment, the wireless connection method can simplify the installation.

[0033] In a preferred embodiment, the controller 1, the proximity sensor 2 and the geomagnetic sensor 3 are arranged in the same protective shell, and the operating temperature range of the protective shell is: -40°C to 80°C.

[0034] In this embodiment, the protective shell is waterproof, dustproof and snowproof and is easy to install.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A train approach warning device for a railway pre-inspection operation site, characterized in that: The early warning device comprises a controller (1), a proximity sensor (2), a geomagnetic sensor (3) and a speaker (4); The proximity sensor (2) and the geomagnetic sensor (3) are arranged side by side on the inner side of the rail (6); the proximity sensor (2) is used to generate a proximity sensing signal when the wheels of a train approach; the geomagnetic sensor (3) is used to generate a geomagnetic sensing signal when the wheels of a train approach; The controller (1) is used to receive proximity sensor signals and geomagnetic sensor signals; When the proximity sensor signal and the geomagnetic sensor signal are received at the same time, a warning sound signal is generated; The loudspeaker (4) is used to receive the warning sound signal and to make a voice announcement according to the warning sound signal.

2. A railway pre-inspection operation field train approach warning device according to claim 1, characterized in that: The early warning device also includes an indicator light (5); The controller (1) also generates a warning light signal when receiving a proximity sensor signal and a geomagnetic sensor signal simultaneously; The indicator light (5) is used to receive the warning light signal and flash to give a warning according to the warning light signal.

3. A railway pre-inspection operation field train approach warning device according to claim 2, characterized in that: The indicator light (5) is installed on the glass window above the maintenance warehouse door.

4. The railway pre-inspection operation field train approach warning device according to claim 1, characterized in that: The loudspeaker (4) is arranged on the building of the pre-inspection work site, or the loudspeaker (4) is arranged on the outside of the rail (6) in the form of a vertical pole.

5. The railway pre-inspection operation field train approach warning device according to claim 1, characterized in that: The model of the controller (1) is STM32115; The warning sound signal output end of the controller (1) is connected to the warning sound signal input end of the speaker (4) in a wireless connection manner.

6. The railway pre-inspection operation field train approach warning device according to claim 1, characterized in that: The controller (1), the proximity sensor (2) and the geomagnetic sensor (3) are arranged in the same protective shell, and the operating temperature range of the protective shell is: -40°C to 80°C.

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