Locomotive signal detection device

Abstract

The utility model discloses a locomotive signal detection device which comprises a power supply module, a data storage module, a data wireless transmission module, an input acquisition module and a control module, and the input acquisition module comprises a connector and an optocoupler isolation unit; the power supply module, the data storage module, the data wireless transmission module, the optical coupler isolation unit and the control module are integrated in a shell. According to the utility model, the connector pin is directly connected with a locomotive socket to collect locomotive signals, so that the interference of long-distance lines is reduced; according to the utility model, photoelectric isolation is carried out through the optical coupler isolation unit, so that the influence of short circuit, grounding and other problems caused by equipment faults on the locomotive is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of electric locomotive control line state detection, in particular to a locomotive signal detection device. Background Art

[0002] In electric locomotive control circuits, many connector sockets require signal monitoring and testing, such as internal and external reconnection sockets, electric hook sockets, and more. These sockets contain numerous crucial signals for controlling the locomotive's normal operation. During locomotive maintenance and commissioning, the control signal status of each socket contact must be tested. A typical test method involves measuring the voltage of the socket contacts for the relevant control signals with a multimeter while operating in the driver's cab, or by observing whether the locomotive's related functions are operating.

[0003] Patent application CN109283426A discloses a device for detecting reconnection sockets within a locomotive. The device comprises a control module, an indicator module, a power module, a wireless transmission module, a data storage module, and an aerial plug. The aerial plug is connected to the control module via an extension cable, and the control module displays the detection status. The device collects signals via the extension cable, which involves physical cables, making long-distance signal collection inconvenient and subject to signal interference. Furthermore, the detection device circuit is connected to the reconnection socket via the extension cable, which can easily cause short circuits, grounding, and other problems that could damage locomotive equipment due to equipment failure. Utility Model Content

[0004] The utility model aims to address the deficiencies of the prior art and provides a locomotive signal detection device to reduce the impact on the detected circuit.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A locomotive signal detection device includes a power supply module, a data storage module, a data wireless transmission module, an input acquisition module, and a control module;

[0007] The control module is electrically connected to the power supply module, the data storage module, the data wireless transmission module, and the input acquisition module respectively;

[0008] The input acquisition module includes a connector and an optical coupling isolation unit, the connector is electrically connected to the optical coupling isolation unit, and the optical coupling isolation unit is electrically connected to the control module;

[0009] The power supply module, the data storage module, the wireless data transmission module, the optical coupling isolation unit, and the control module are integrated in a housing, and the connector is arranged at the bottom of the housing.

[0010] The modules of the locomotive signal detection device of the utility model are integrated into a housing with a simple structure; the device is directly connected to the locomotive socket via a connector to collect locomotive signals, thus reducing interference from long-distance lines; the utility model performs photoelectric isolation via an optocoupler isolation unit, thus reducing the impact of problems such as short circuit and grounding caused by equipment failure on the locomotive.

[0011] Furthermore, the connector includes a plurality of pins, which are electrically connected to the optical coupling isolation unit and mate with the ferrules of the locomotive socket. The locomotive signal detection device is inserted into the locomotive socket to be tested through the connector pins, and the signal status of all ferrules can be detected at once.

[0012] Furthermore, the locomotive signal detection device further comprises a Bluetooth module, which is electrically connected to the control module and can be configured and accessed via Bluetooth.

[0013] Furthermore, the locomotive signal detection device further includes a display module, which is electrically connected to the control module and can perform parameter setting and operation.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The modules of the locomotive signal detection device of the utility model are integrated into a housing with a simple structure; the device is directly connected to the locomotive socket via a connector to collect locomotive signals, thus reducing interference from long-distance lines; the utility model performs photoelectric isolation via an optocoupler isolation unit, thus reducing the impact of problems such as short circuit and grounding caused by equipment failure on the locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the connection of various modules of the locomotive signal detection device of the present utility model;

[0017] Figure 2 It is a schematic diagram of the housing of the locomotive signal detection device of the present utility model;

[0018] Figure 3 This is a circuit diagram of the optical coupling isolation unit of the utility model;

[0019] Figure 4 It is a structural diagram of a locomotive signal detection device of the present utility model.

[0020] In the figure: 1-display screen, 2-charging port, 3-power switch, 4-connector pin, 5-housing, 6-control module, 7-optocoupler isolation unit. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0022] Example

[0023] like Figures 1-4 As shown, a locomotive signal detection device of this embodiment includes a housing 5, within which are located a lithium battery and its power supply module, a Bluetooth module, a data storage module, a wireless data transmission module, an input acquisition module, a single-chip microcomputer control module 6, and a display module 1. The single-chip microcomputer control module 6 is electrically connected to the power supply module, Bluetooth module, data storage module, wireless data transmission module, input acquisition module, and display module 1.

[0024] like Figure 2 , the LCD screen (display module) 1, USB charging interface 2, and power switch 3 are located on the upper part of the shell, and the connector pin 4 is at the bottom of the shell.

[0025] The LCD screen allows for simple parameter settings and operations. The device hotspot name and password, Wi-Fi connection status, host and client IP addresses are displayed on the screen.

[0026] The lithium battery of the power module can be charged through the microUSB interface, which is convenient and can quickly provide the required voltage for each module;

[0027] This device has a built-in web server function. By accessing the web server via the wireless network, you can browse all the test data collected by the intelligent detection terminal in real time. You can also analyze and download all historical test data through the browser. From parameter input to data collection, analysis, graphical interface display and data download, all are accessed through the client browser to the web server, and the entire use process can be interactive through the web server.

[0028] The device can be accessed and controlled through computers, mobile phones, tablets and other smart devices. It can also achieve simultaneous access by multiple clients to monitor real-time data, set parameters in real time, and remote access via the Internet.

[0029] The data storage module can store the measured data in the system in real time, and the historical measurement data can also be saved, realizing massive data storage, which can be downloaded, transferred and shared through WEB services.

[0030] The device also provides a wireless hotspot through which other smart devices can access the web server and browse real-time monitoring data. The device's LCD screen displays the hotspot name, password, and network connection information.

[0031] This device has Bluetooth functionality and can be configured and accessed via Bluetooth.

[0032] The input acquisition module includes a connector and an optical coupler isolation unit 7. The connector and the optical coupler isolation unit are electrically connected, and the optical coupler isolation unit is electrically connected to the single chip control module. Figure 3 ) converts the 110V electrical signal input from the locomotive into an optical signal, which is then converted into a 0-3.3V voltage signal recognized by the microcontroller. The microcontroller samples all input signals within a 10ms sampling period and then batch processes and analyzes the sampled electrical signals. All input signals come from connector pin 4. The voltage signal from each plug in the locomotive socket is detected and collected, and transmitted to the microcontroller. The microcontroller's built-in web server then transmits the collected data to each client via the Wi-Fi network.

[0033] The single chip control module is the central control unit of the device, configuring and coordinating the work of each module.

[0034] The advantages of this device are:

[0035] 1. Small size, easy to carry;

[0036] 2. Wireless data transmission through built-in WEB server;

[0037] 3. Use browser web pages to access, analyze, diagnose and download test data, which is simple and convenient;

[0038] 4. The system features intelligent diagnostic functionality, which analyzes all collected signal states and issues error warnings for conflicting data or data with logical errors. After the microcontroller collects a batch of input signals, the program identifies and evaluates the sampled signals, determining which function each input signal corresponds to within the EMU. For example, door opening and closing signals, parking brake signals, and parking release signals all have corresponding logical relationships during normal locomotive operation. For example, door opening and door closing signals cannot occur simultaneously; if they do, it indicates a signal conflict and a system problem. Similarly, parking brake and parking release, train brake and train release, and electric hook opening and closing signals cannot occur simultaneously. Furthermore, many signals have sequential and causal relationships. If a signal's occurrence does not conform to the train's operational logic, causal relationships, or sequential order, the system program will diagnose it as an anomaly and error.

[0039] 5. The test results are displayed dynamically through the browser web page graphics, which is intuitive and efficient;

[0040] 6. The test has a high degree of automation. The equipment is integrated in a housing that matches the socket of the locomotive to be tested. The signal status of all the pins can be tested at once by simply inserting the connector pins into the socket to be tested.

[0041] 8. Real-time storage and permanent preservation facilitate query and management of test records;

[0042] 9. It can realize real-time access by multiple clients and remote access via the Internet.

[0043] The circuit of the optocoupler isolation unit is as follows Figure 3 , Figure 3 "Left Open Door" and "Left Close Door" are input signals, or the measured signals, while "GPIO9," "GPIO10," "GPIO11," and "GPIO12" are signals processed by optocoupler isolation. For example, after the "Left Open Door" signal insert connects to the connector pins, the electrical signal is transmitted to the optocoupler isolation unit through the pins. D1 is a reverse polarity protection diode, while R1, a current-limiting resistor, and D2, a voltage regulator, form a voltage-stabilizing circuit that stabilizes the 110V "Left Open Door" signal to the low voltage required by the optocoupler isolation chip. C1 is a filter capacitor that provides interference suppression. LED1 is the input signal indicator. When the input is high, the indicator lights up, and the light-emitting diode inside the optocoupler isolation chip U1 activates, turning on the phototransistor inside U1 (chips 4 and 3 in U1), causing GPIO9 to also be high, which is then fed into the microcontroller control module. Optocoupler isolation chips include Goodwalk PC817C, Everlight ELD3H7, and Everlight ELQ3H7.

[0044] The contents described in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent modifications to the embodiments by those skilled in the art fall within the scope defined by the claims attached to the present invention.

Claims

1. A locomotive signal detection device, comprising a power supply module, a data storage module, a data wireless transmission module, an input acquisition module, and a control module; The control module is electrically connected to the power supply module, the data storage module, the data wireless transmission module, and the input acquisition module respectively; The input acquisition module includes a connector and an optical coupling isolation unit, the connector is electrically connected to the optical coupling isolation unit, and the optical coupling isolation unit is electrically connected to the control module; The power supply module, the data storage module, the wireless data transmission module, the optical coupling isolation unit, and the control module are integrated in a housing, and the connector is arranged at the bottom of the housing.

2. The locomotive signal detection device according to claim 1, characterized in that: The connector includes a plurality of pins, the pins are electrically connected to the optical coupling isolation unit, and the pins are matched with the core of the locomotive socket.

3. The locomotive signal detection device according to claim 1, characterized in that: It also includes a Bluetooth module, which is electrically connected to the control module.

4. The locomotive signal detection device according to claim 1, characterized in that: It also includes a display module, which is electrically connected to the control module.

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