Wireless control current digital track short circuit line

Abstract

The utility model relates to the field of track electric power equipment test technology, concretely relates to a current digital display track short circuit line of wireless control, including control box, setting control module in control box, setting input wire and output wire at the both ends of control box, one end of input wire and output wire respectively goes into control box with control module electricity and is connected, control module includes control chip, relay, current sensor, display module, first wireless communication module and power module with control chip electricity and is connected respectively with relay, and the load resistance that is connected with relay output end, the input end of relay is connected with input wire one end, and the output end is connected with load resistance input end, and the control end is connected with control chip, the utility model discloses utilize wireless communication technology to realize steel rail short circuit line on-off and short circuit current measurement, when being used for track circuit equipment test, the test efficiency is improved greatly and the artificial operation amount is reduced.

Description

Technical Field

[0001] This utility model relates to the field of track circuit equipment testing technology, specifically to a wirelessly controlled digital current display track short circuit. Background Technology

[0002] A track circuit is a circuit that uses railway tracks as conductors. Its main function is to monitor the occupancy of trains and provide reliable interlocking conditions for signals.

[0003] A track short circuit is a tool used in track circuits to detect the condition of rails, primarily for detecting whether a train is occupying the track and for controlling the signaling system.

[0004] The equivalent resistance characteristics of a train wheelset can be used to simulate a short circuit when a train enters the track circuit. When a rail short circuit connects the two rails, the current flowing through the rail short circuit is called the short-circuit current. Its applications include railway signaling, specifically simulation testing of track circuit equipment. By using the rail short circuit, the current flow between the rails can be switched on and off, simulating a train occupying the track, thereby testing the relevant functions of the track circuit equipment.

[0005] Rail short-circuit wires are commonly used for systematic testing of track circuit equipment and on-site railway trials. They typically simulate the electrical characteristics of wheelsets using wires with fixed resistance. Two requirements exist for rail short-circuit wires during track circuit equipment testing: frequent and controllable switching on and off; and the measurement of short-circuit current.

[0006] To meet the need for frequent and controllable switching, current operation is manual, and automatic control has not been achieved. For the measurement of short-circuit current, current methods use current clamp sensors and frequency shift meters, with personnel reading and recording the data to complete the short-circuit current measurement.

[0007] Therefore, existing technologies have a low degree of automation and a high degree of reliance on manual operation, which reduces testing efficiency and increases the workload of testing personnel. Furthermore, the reliance on additional current measuring instruments adds extra testing steps and increases the difficulty of the test. Summary of the Invention

[0008] This invention addresses the technical problem that existing rail short-circuit testers for track circuit equipment testing not only rely heavily on manual operation but also require additional current measuring instruments. It provides a wirelessly controlled digital current display rail short-circuit tester that utilizes wireless communication technology to measure the continuity and short-circuit current of the rail short-circuit tester. When used for track circuit equipment testing, it can replace manual operation, significantly improving testing efficiency and reducing the amount of manual work.

[0009] The technical solution adopted by this utility model is to provide a wirelessly controlled digital display track shortening line, including a control box, a control module set in the control box, and input wires and output wires set at both ends of the control box. One end of the input wire and the output wire are respectively inserted into the control box and electrically connected to the control module. The control module includes a control chip, a relay electrically connected to the control chip, a current sensor, a display module, a first wireless communication module, a power supply module, and a load resistor connected to the output terminal of the relay. The relay's input terminal is connected to one end of the input wire, its output terminal is connected to the input terminal of the load resistor, and its control terminal is connected to the control chip. The load resistor's output terminal is connected to one end of the output wire. The current sensor's acquisition terminal is connected to the output wire, and its output terminal is connected to the control chip.

[0010] A switch is connected in series on the output wire between the current sensor and the output wire and the load resistor.

[0011] One end of each of the input and output wires is connected to a terminal.

[0012] The connecting terminal is an alligator clip, a copper ring terminal, or a banana plug terminal.

[0013] It also includes a remote control module with a second wireless communication module.

[0014] The control box is a shell structure with an inner cavity. A display window and a knob are provided on the front end face of the control box. A switch button and a power button are provided on the left or right end face of the control box. The knob corresponds to the control chip, the switch button corresponds to the on / off switch, the power button corresponds to the power module, and the display window corresponds to the display module.

[0015] The beneficial effects of this utility model are that it provides a wirelessly controlled digital current display rail shorting circuit, which integrates remote control and current measurement while possessing the basic functions of a rail shorting circuit. This significantly improves the automation and efficiency of testing, reduces the number of instruments required for testing, simplifies the testing steps, reduces the amount of manual operation and dependence, and makes operation simpler and more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a circuit diagram of the control module in this utility model; Figure 3 This is a structural schematic diagram of the control box of this utility model.

[0017] In the attached diagram, 1 is the control box, 2 is the input wire, 3 is the output wire, 4 is the connection terminal, 5 is the display window, 6 is the knob, 7 is the switch button, and 8 is the power button. Detailed Implementation

[0018] like Figure 1-3 As shown, this utility model provides a wirelessly controlled digital current display track shortening line, including a control box 1, a control module disposed within the control box 1, and input wires 2 and output wires 3 disposed at both ends of the control box 1. One end of each of the input wires 2 and output wires 3 passes through the control box 1 and is electrically connected to the control module. The control module includes a control chip, a relay electrically connected to the control chip, a current sensor, a display module, a first wireless communication module, a power supply module, and a load resistor connected to the output terminal of the relay. The input terminal of the relay is connected to one end of the input wire 2, the output terminal is connected to the input terminal of the load resistor, and the control terminal is connected to the control chip. The output terminal of the load resistor is connected to one end of the output wire 3. The acquisition terminal of the current sensor is connected to the output wire 3, and the output terminal is connected to the control chip.

[0019] Control box 1 is the outer shell of the specific cavity. The control module is installed inside control box 1. Control box 1 plays the role of protecting the control module and providing support.

[0020] The outer ends of input wire 2 and output wire 3 are connected to the laboratory rail simulation panel or actual rail for the transmission of short-circuit current. The control module is used to control the on / off state and measurement of short-circuit current.

[0021] The control module consists of a control chip, relays, current sensors, a display module, a first wireless communication module, a power supply module, and a load resistor.

[0022] The control chip is implemented using a conventional microcontroller in this field, such as ESP-32 or STM32, for data processing and data transmission and reception.

[0023] The relay is a conventional relay in this field. Under the control of the control chip, the relay can control the current flow between the input wire 2 and the load resistor, that is, the connection and disconnection of the short circuit of the track.

[0024] The current sensor is a conventional current measurement sensor used in the field to measure the current on the output wire 3 and transmit the data to the control chip.

[0025] The display module uses conventional display circuits and displays in the art to visualize data from the display control chip, such as current, on / off status, etc.

[0026] The first wireless communication module uses conventional wireless communication circuits in the field for wireless communication with a remote terminal. For example, the remote terminal can send instructions to the control chip, and the control chip can also send data to the remote terminal. The specific wireless communication method is not limited, such as Bluetooth, WIFI, LoRa, and GPRS.

[0027] The input wire 2, relay, load resistor, and output guide 3 are connected in series. The load resistor, the internal resistance of the wire, the internal resistance of the relay, and the internal resistance of the on / off switch constitute the standard shunt resistor.

[0028] During operation, the track short circuit is installed at the desired measurement location by default. After the power module is powered on, the control chip starts working, the current sensor is on by default, and the display module shows the initial data. The remote terminal establishes a connection with the control chip through the first wireless communication module to achieve information exchange. When the remote terminal issues a closing command, the control chip controls the relay to close, connecting input wire 2, the relay, the load resistor, and output wire 3, thus establishing a track short circuit. The measuring sensor measures the current value on output wire 3 and sends it to the control chip, which then sends the data to the display module for visualization and transmits it to the remote terminal via the first wireless communication module. When the remote terminal issues a disconnect command, the control chip controls the relay to disconnect, breaking the connection between the relay and the load resistor. No current flows through output wire 3. The measuring sensor measures the current value on output wire 3 and sends it to the control chip, which then sends the data to the display module for visualization and transmits it to the remote terminal via the first wireless communication module.

[0029] This design allows for remote control of the short-circuit circuit on the track via a remote terminal, while simultaneously measuring the current value on the short-circuit circuit. This meets the requirements for frequent and controllable switching and short-circuit current measurement in track circuit equipment testing, significantly reducing the complexity and dependence on manual operation. Furthermore, it is simple and convenient to operate, significantly improving measurement efficiency and enhancing the automation level of testing.

[0030] like Figure 3 As shown, a switch is connected in series on the output wire 3 between the current sensor and the load resistor.

[0031] The on / off switch is on by default and integrates a manual operation mode for the track short circuit. When a remote terminal is not needed or is inconvenient to operate, the on / off switch can be manually operated to control the on / off of the track short circuit when the relay is in the on state, making the operation more flexible and convenient for the staff.

[0032] like Figure 1 As shown, one end of the input wire 2 and the output wire 3 are respectively connected to a connection terminal 4.

[0033] The connection terminal 4 is used to connect the input wire 2 and the output wire 3 to the required track circuit, improving the ease of connection.

[0034] like Figure 1 As shown, the connecting terminal 4 is an alligator clip, a copper ring terminal, or a banana head terminal.

[0035] The connecting terminal 4 can be one of an alligator clip, a copper ring terminal, or a banana plug terminal. It is easy to operate, low in cost, and readily available for purchase.

[0036] like Figure 3 As shown, it also includes a remote control module with a second wireless communication module.

[0037] The remote control module and the second wireless communication module are integrated into the remote terminal, which is used to remotely control the connection and disconnection of the short track after manual input of commands, making it more convenient to use.

[0038] like Figure 2 As shown, the control box 1 is a shell structure with an inner cavity. A display window 5 and a knob 6 are provided on the front end face of the control box 1. A switch button 7 and a power button 8 are provided on the left or right end face of the control box 1. The knob 6 corresponds to the control chip, the switch button 7 corresponds to the on / off switch, the power button 8 corresponds to the power module, and the display window 5 corresponds to the display module.

[0039] The control box 1 is the housing for the short track. It features a display window 5, a knob 6, a switch button 7, and a power button 8. The display window 5 corresponds to the display module for easy viewing by the operator. The knob 6 is electrically connected to the control chip, which has a built-in mode selection function: manual operation mode and remote operation mode. Only one mode remains after selection, preventing accidental operation due to simultaneous manual and remote operation. Rotating the knob 6 allows switching between the two modes. The switch button 7 is for manual operation, allowing manual control of the on / off switch. The power button 8 is for manual control of the power supply mode.

Claims

1. A wirelessly controlled digital display track shortening system, characterized in that: The system includes a control box (1), a control module located inside the control box (1), and input wires (2) and output wires (3) located at both ends of the control box (1). One end of each of the input wires (2) and output wires (3) passes through the control box (1) and is electrically connected to the control module. The control module includes a control chip, a relay electrically connected to the control chip, a current sensor, a display module, a first wireless communication module, a power supply module, and a load resistor connected to the output terminal of the relay. The input terminal of the relay is connected to one end of the input wire (2), the output terminal is connected to the input terminal of the load resistor, and the control terminal is connected to the control chip. The output terminal of the load resistor is connected to one end of the output wire (3). The acquisition terminal of the current sensor is connected to the output wire (3), and the output terminal is connected to the control chip.

2. The wirelessly controlled digital display track shortening method according to claim 1, characterized in that: A switch is connected in series on the current sensor and the output wire (3) at the connection point between the current sensor and the output wire (3) and the load resistor.

3. The wirelessly controlled digital display track shortening method according to claim 1, characterized in that: One end of the input wire (2) and the output wire (3) are respectively connected to a connection terminal (4).

4. A wirelessly controlled digital display track shortening system according to claim 3, characterized in that: The connecting terminal (4) is an alligator clip, a copper ring terminal, or a banana head terminal.

5. A wirelessly controlled digital current display track shortening method according to claim 3, characterized in that: It also includes a remote control module with a second wireless communication module.

6. A wirelessly controlled digital display track shortening system according to claim 1, characterized in that: The control box (1) is a shell structure with an inner cavity. A display window (5) and a knob (6) are provided on the front end face of the control box (1). A switch button (7) and a power button (8) are provided on the left or right end face of the control box (1). The knob (6) corresponds to the control chip, the switch button (7) corresponds to the on / off switch, the power button (8) corresponds to the power module, and the display window (5) corresponds to the display module.

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