Device for train tail lamp detection

Abstract

The utility model relates to the field of train tail lamp detection, and provides a device for detecting train tail lamps, the train tail lamps comprise a first train tail lamp and a second train tail lamp, and the device comprises a controller, a current sensor, a voltage detection module and a current detection module, the controller is electrically connected with the current sensor, the voltage detection module and the current detection module, the current sensor is connected with the first train tail lamp in series, the current detection module is connected with the first train tail lamp and the second train tail lamp, and the controller is used for transmitting control signals. The current sensor is used for detecting branch current of a first train taillight, the voltage detection module is used for detecting voltage, and the current detection module is used for detecting total current of a circuit. According to the utility model, the real-time on-line detection of the train tail lamp is realized, the working state of the train tail lamp can be comprehensively monitored, the accuracy and efficiency of fault detection are improved, and the running safety of the train is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of train taillight detection, and in particular to a device for detecting train taillights. Background Technology

[0002] With the rapid development of my country's rail transit industry, the manufacturing technology of rail vehicles, including trains and subways, has become increasingly mature. Train taillights, as an indispensable and crucial component in train operation, play a vital role in alerting following trains to the presence of the train ahead and indicating braking and deceleration actions. Train taillights are not only an important part of the train's appearance but also a key active safety device for ensuring train operation safety. However, taillight malfunctions frequently occur during train operation. The main causes include poor contact between the taillight plug and socket, broken power lines, damaged LED beads, and accidental power switch shutdown. These problems can cause the taillights to malfunction, rendering the train's rear-end marking function ineffective. If following trains fail to detect the train ahead in time, rear-end collisions are highly likely, seriously threatening train operation safety.

[0003] Chinese patent CN216102135U discloses a load anomaly detection alarm system and a train taillight power failure detection alarm device, including a microcontroller, a current detection module, a first indicator light, a second indicator light, and a buzzer. However, the device uses a single current sensor for detection and fails to achieve independent monitoring of different taillights. When multiple taillights malfunction at the same time, it is difficult to accurately locate the fault. Utility Model Content

[0004] In view of this, the present invention proposes a device for detecting train taillights, which solves the problem that the existing technology uses a single current sensor for detection, which fails to achieve independent monitoring of different taillights, and makes it difficult to accurately locate the fault when multiple taillights malfunction at the same time.

[0005] The technical solution of this utility model is implemented as follows: A device for detecting train taillights is provided. The train taillights include a first train taillight and a second train taillight. The device includes a controller, a current sensor, a voltage detection module, and a current detection module. The controller is electrically connected to the current sensor, the voltage detection module, and the current detection module respectively. The current sensor is connected in series with the first train taillight. The current detection module is connected to both the first and second train taillights respectively.

[0006] The controller is used to transmit control signals, the current sensor is used to detect the branch current of the first train taillight, the voltage detection module is used to detect voltage, and the current detection module is used to detect the total circuit current.

[0007] Based on the above technical solutions, preferably, the current detection module includes a current detection chip U1, resistors R1, R3, R4, R5, and R6, capacitors C8 and C9, and connector P1.

[0008] Pins 1 and 2 of the current sensing chip U1 are grounded. Pin 4 of the current sensing chip U1 is electrically connected to one end of resistor R5. Pin 5 of the current sensing chip U1 is electrically connected to one end of resistor R6. The other ends of the current sensing chip U16, resistor R5, resistor R6, and capacitor C9 are all connected to +5V. The other end of capacitor C9, pin 7 of the current sensing chip U1, one end of resistor R4, one end of resistor R3, and pin 3 of connector P1 are all grounded. Pin 8 of the current sensing chip U1 and pin 1 of connector P1 are both connected to PACK+ voltage. Pin 9 of the current sensing chip U1 is electrically connected to one end of capacitor C8 and the other end of resistor R4. Pin 10 of the current sensing chip U1 is electrically connected to the other end of capacitor C8 and one end of resistor R1. The other end of resistor R1 is electrically connected to the other end of resistor R3 and pin 2 of connector P1. Pin 2 of connector P1 is connected to the sensing terminal.

[0009] Based on the above technical solutions, preferably, it also includes an audible and visual alarm device, which is electrically connected to the controller and is used to provide audible and visual alarm prompts.

[0010] Based on the above technical solutions, preferably, the system also includes multiple indicator lights, which are electrically connected to the controller and are used to indicate the device status.

[0011] Based on the above technical solutions, preferably, the indicator lights include a first train taillight indicator light, a second train taillight indicator light, a voltage indicator light, a power indicator light, and a device status indicator light. The first train taillight indicator light, the second train taillight indicator light, the voltage indicator light, the power indicator light, and the device status indicator light are all connected to the controller.

[0012] The first train taillight indicator light is used to indicate the working status of the first train taillight, the second train taillight indicator light is used to indicate the working status of the second train taillight, the voltage indicator light is used to indicate the abnormal state of the voltage value, and the equipment status indicator light is used to display whether the detection device is working properly.

[0013] Based on the above technical solutions, preferably, a display module is also included, which is electrically connected to the controller and is used for human-computer interaction and displaying train taillight detection data.

[0014] Based on the above technical solutions, preferably, the current sensor is an INA226 current sensor.

[0015] Based on the above technical solutions, preferably, the voltage detection module adopts an isolated voltage sensor of model AMC1305M25.

[0016] Based on the above technical solutions, preferably, the current detection chip is a three-channel current detection chip of model INA3221.

[0017] Based on the above technical solutions, preferably, the audible and visual alarm device adopts a magnetic audible and visual alarm device with model number YG-2460PA-BJQC.

[0018] The device for detecting train taillights provided by this utility model has the following advantages compared with the prior art:

[0019] (1) Through the coordinated work of the controller, current sensor, voltage detection module and current detection module, the current sensor is used to detect the branch current of the first train taillight, the current detection module is used to monitor the total current of the circuit, the voltage detection module is used to detect the circuit voltage, and the controller transmits the data collected by each module, realizing real-time online detection of the train taillight, and has a dual current detection mechanism and voltage monitoring function, which can comprehensively monitor the working status of the train taillight, improve the accuracy and efficiency of fault detection, and effectively ensure the safety of train operation;

[0020] (2) By using the current detection module, the current detection chip and resistors, capacitors and connectors are properly configured to achieve accurate detection of the total current of the circuit. The current detection chip is connected by multiple pins and combined with the synergistic effect of peripheral components to stably collect and process current signals and transmit the detection results to the controller through the connector, providing accurate current data support for the fault judgment of the train taillight, thereby improving the detection efficiency and fault identification capability of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a device for detecting train taillights according to the present invention;

[0023] Figure 2 This is a wiring diagram of the current detection module of a device for detecting train taillights according to this utility model. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] Please see Figure 1 A device for detecting train taillights is provided. The train taillights include a first train taillight and a second train taillight. The device includes a controller, a current sensor, a voltage detection module, and a current detection module. The controller is electrically connected to the current sensor, the voltage detection module, and the current detection module. The current sensor is connected in series with the first train taillight. The current detection module is connected to both the first and second train taillights.

[0026] The controller is used to transmit control signals, the current sensor is used to detect the branch current of the first train taillight, the voltage detection module is used to detect voltage, and the current detection module is used to detect the total circuit current.

[0027] Specifically, this embodiment utilizes the collaborative operation of a controller, a current sensor, a voltage detection module, and a current detection module. The current sensor detects the branch current of the first train taillight, the current detection module monitors the total current of the circuit, and the voltage detection module detects the circuit voltage. The controller transmits the data collected by each module, enabling real-time online detection of the train taillights. It also features a dual current detection mechanism and voltage monitoring function, comprehensively monitoring the operating status of the train taillights, improving the accuracy and efficiency of fault detection, and effectively ensuring train operation safety.

[0028] The first train taillight and the second train taillight are connected in parallel and then connected in series with the current detection module, so that the total current can be detected by the current detection module.

[0029] like Figure 2 As shown, the current detection module includes a current detection chip U1, resistors R1, R3, R4, R5, and R6, capacitors C8 and C9, and connector P1.

[0030] Pins 1 and 2 of the current sensing chip U1 are grounded. Pin 4 of the current sensing chip U1 is electrically connected to one end of resistor R5. Pin 5 of the current sensing chip U1 is electrically connected to one end of resistor R6. The other ends of the current sensing chip U16, resistor R5, resistor R6, and capacitor C9 are all connected to +5V. The other end of capacitor C9, pin 7 of the current sensing chip U1, one end of resistor R4, one end of resistor R3, and pin 3 of connector P1 are all grounded. Pin 8 of the current sensing chip U1 and pin 1 of connector P1 are both connected to PACK+ voltage. Pin 9 of the current sensing chip U1 is electrically connected to one end of capacitor C8 and the other end of resistor R4. Pin 10 of the current sensing chip U1 is electrically connected to the other end of capacitor C8 and one end of resistor R1. The other end of resistor R1 is electrically connected to the other end of resistor R3 and pin 2 of connector P1. Pin 2 of connector P1 is connected to the sensing terminal.

[0031] Specifically, this embodiment utilizes a current detection module design, employing a rational configuration of the current detection chip U1 with resistors, capacitors, and connectors to achieve accurate detection of the total current of the train taillights. The current detection chip U1, through multi-pin connections and the synergistic effect of peripheral components (such as resistors R1, R3, R4, R5, R6 and capacitors C8, C9), can stably acquire and process current signals, transmitting the detection results to the controller via connector P1. This module design features high precision, high reliability, and stability, providing accurate current data support for fault diagnosis of the train taillights, thereby improving the device's detection efficiency and fault identification capabilities.

[0032] An apparatus for detecting train taillights also includes an audible and visual alarm device, which is electrically connected to the controller and is used to provide audible and visual alarm prompts.

[0033] Specifically, in this embodiment, the audible and visual alarm device is electrically connected to the controller. When an abnormal voltage or current of the train taillight is detected, the audible and visual alarm device can promptly issue an audible and visual warning, ensuring rapid transmission of fault information and improving the response speed and processing efficiency of train taillight faults.

[0034] A device for detecting train taillights also includes multiple indicator lights electrically connected to the controller, the indicator lights indicating the device status.

[0035] The indicator lights include a first train taillight indicator light, a second train taillight indicator light, a voltage indicator light, a power indicator light, and a device status indicator light. The first train taillight indicator light, the second train taillight indicator light, the voltage indicator light, the power indicator light, and the device status indicator light are all connected to the controller.

[0036] The first train taillight indicator light is used to indicate the working status of the first train taillight, the second train taillight indicator light is used to indicate the working status of the second train taillight, the voltage indicator light is used to indicate the abnormal state of the voltage value, and the equipment status indicator light is used to display whether the detection device is working properly.

[0037] Specifically, this embodiment is equipped with multiple indicator lights, including a first train taillight indicator light, a second train taillight indicator light, a voltage indicator light, a power indicator light, and an equipment status indicator light. These lights can intuitively display the working status of the train taillights, abnormal voltage status, power supply status, and whether the detection device is working properly, making it easy for operators to quickly determine the equipment's operating status and fault location.

[0038] An apparatus for detecting train taillights further includes a display module electrically connected to the controller, the display module being used for human-computer interaction and displaying train taillight detection data.

[0039] Specifically, in this embodiment, through the connection between the display module and the controller, the device can display the detection data of the train taillights in real time, providing intuitive monitoring information and human-computer interaction functions, making it convenient for operators to view and analyze the operating status and fault information of the taillights.

[0040] In one specific embodiment, the current sensor is an INA226 current sensor.

[0041] In one specific embodiment, the voltage detection module uses an isolated voltage sensor of model AMC1305M25.

[0042] In one specific embodiment, the current detection chip is a three-channel current detection chip of model INA3221.

[0043] In one specific embodiment, the audible and visual alarm device is a magnetic audible and visual alarm with model number YG-2460PA-BJQC.

[0044] In one specific embodiment, the DC power supply in the electrical cabinet is connected to the train taillight detection device through the input terminal of the device, and the output terminal of the device supplies power to two train taillights respectively. One taillight branch is passed through the through-hole of a current sensor. The main power switch is turned on, and the corresponding power indicator light and device status indicator light illuminate. The train taillight detection device begins to operate. The on / off state of the main switch does not affect the power supply to the train taillights. The operation of the train taillight detection device refers to the following: the current sensor, current detection module, voltage detection module, and audible and visual alarm device begin to operate. When the voltage value detected by the voltage detection module is outside the normal voltage range (i.e., outside the DC33.6~DC72V range), the audible and visual alarm device activates an audible and visual alarm, and the voltage indicator light illuminates. When the total current detected by the current detection module is outside the normal current range, the alarm device activates an audible and visual alarm. The control system performs logical judgment on the branch current and total current detected by the current sensor. The rules for the logical judgment are as follows:

[0045] Since both train taillights use the same model, their normal operating current range is set to I1 to I2, where I1 is less than I2. When the current detection module detects the total current It and the current sensor detects the branch current Iz, if one of the following conditions occurs: the branch current Iz is not within the range of I1 to I2, or the remaining branch current (It-Iz) is not within the range of I1 to I2, or both are not within the range of I1 to I2, then the total current is determined to be abnormal. Based on the location of the abnormal branch, the indicator lights for the first and / or second train taillights are illuminated accordingly.

[0046] Specifically, the current sensor is set to be on the same branch as the first train taillight. When only Iz is not within the range of I1 to I2, the first train taillight indicator light is lit; when only (It-Iz) is not within the range of I1 to I2, the second train taillight indicator light is lit; when both Iz and (It-Iz) are not within the range of I1 to I2, both the second train taillight indicator light and the second train taillight indicator light are lit; when both Iz and (It-Iz) are within the range of I1 to I2, neither the second train taillight indicator light nor the second train taillight indicator light is lit.

[0047] When the controller detects that the battery cannot supply power to the detection device or that the controller has malfunctioned, the device status indicator light will turn off.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting train taillights, the train taillights comprising a first train taillight and a second train taillight, characterized in that, The device includes a controller, a current sensor, a voltage detection module, and a current detection module. The controller is electrically connected to the current sensor, the voltage detection module, and the current detection module. The current sensor is connected in series with a first train taillight. The current detection module is connected to both the first and second train taillights. The controller is used to transmit control signals, the current sensor is used to detect the branch current of the first train taillight, the voltage detection module is used to detect voltage, and the current detection module is used to detect the total circuit current.

2. The device for detecting train taillights as described in claim 1, characterized in that, The current detection module includes a current detection chip U1, resistors R1, R3, R4, R5, and R6, capacitors C8 and C9, and connector P1. Pins 1 and 2 of the current sensing chip U1 are grounded. Pin 4 of the current sensing chip U1 is electrically connected to one end of resistor R5. Pin 5 of the current sensing chip U1 is electrically connected to one end of resistor R6. The other ends of the current sensing chip U16, resistor R5, resistor R6, and capacitor C9 are all connected to +5V. The other end of capacitor C9, pin 7 of the current sensing chip U1, one end of resistor R4, one end of resistor R3, and pin 3 of connector P1 are all grounded. Pin 8 of the current sensing chip U1 and pin 1 of connector P1 are both connected to PACK+ voltage. Pin 9 of the current sensing chip U1 is electrically connected to one end of capacitor C8 and the other end of resistor R4. Pin 10 of the current sensing chip U1 is electrically connected to the other end of capacitor C8 and one end of resistor R1. The other end of resistor R1 is electrically connected to the other end of resistor R3 and pin 2 of connector P1. Pin 2 of connector P1 is connected to the sensing terminal.

3. The device for detecting train taillights as described in claim 1, characterized in that, It also includes an audible and visual alarm device, which is electrically connected to the controller and is used to provide audible and visual alarm prompts.

4. The device for detecting train taillights as described in claim 1, characterized in that, It also includes multiple indicator lights, which are electrically connected to the controller and are used to indicate the device status.

5. The device for detecting train taillights as described in claim 4, characterized in that, The indicator lights include a first train taillight indicator light, a second train taillight indicator light, a voltage indicator light, a power indicator light, and a device status indicator light. The first train taillight indicator light, the second train taillight indicator light, the voltage indicator light, the power indicator light, and the device status indicator light are all connected to the controller. The first train taillight indicator light is used to indicate the working status of the first train taillight, the second train taillight indicator light is used to indicate the working status of the second train taillight, the voltage indicator light is used to indicate the abnormal state of the voltage value, and the equipment status indicator light is used to display whether the detection device is working properly.

6. The device for detecting train taillights as described in claim 1, characterized in that, It also includes a display module, which is electrically connected to the controller and is used for human-computer interaction and displaying train taillight detection data.

7. The device for detecting train taillights as described in claim 1, characterized in that, The current sensor used is an INA226 current sensor.

8. The device for detecting train taillights as described in claim 1, characterized in that, The voltage detection module uses an isolated voltage sensor, model AMC1305M25.

9. The device for detecting train taillights as described in claim 2, characterized in that, The current detection chip is a three-channel current detection chip with model number INA3221.

10. The device for detecting train taillights as described in claim 3, characterized in that, The sound and light alarm device is a magnetic sound and light alarm with model number YG-2460PA-BJQC.

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