Direct current turnout auxiliary simulation detection circuit

Abstract

The utility model relates to the technical field of detection circuits, in particular to a direct current turnout auxiliary simulation detection circuit which comprises a PICO microprocessor U20, a PICO-IN1 pin of the PICO microprocessor U20 is electrically connected with a first optocoupler control chip, a common end area of the first optocoupler control chip is electrically connected with a connector X1, and a common end area of the connector X2 is electrically connected with a second optocoupler control chip. A pin of a PICO-IN2 of the PICO microprocessor U20 is electrically connected with a second optocoupler control chip, and a common end area of the second optocoupler control chip is electrically connected with a connector X2. According to the utility model, only by inserting the line into the corresponding terminal during testing, whether the line voltage is normal or not can be visually displayed through the screen, and various prompt messages such as correct voltage, reverse voltage and no voltage are provided, so that the accuracy of turnout state judgment is greatly improved, the problem positioning time is also greatly shortened, and the working efficiency is improved. Therefore, stable and efficient operation of a railway signal system is guaranteed.

Description

Technical Field

[0001] This utility model relates to an analog detection circuit, and more particularly to an auxiliary analog detection circuit for DC turnouts, belonging to the field of detection circuit technology. Background Technology

[0002] In railway signaling systems, the stable operation of turnouts directly affects train safety and transportation efficiency. In previous turnout simulation tests, turnout circuit testing commonly used methods such as connecting physical equipment outdoors or using light bulbs and diodes indoors to verify the correctness of the turnout's indoor circuitry. However, these methods have many problems: either they are complex to operate, affected by weather and terrain when working outdoors, resulting in high costs and low efficiency; or they produce poor simulation results, involve complex wiring, rely on manual experience for judgment, and are prone to errors.

[0003] Therefore, it is urgent to improve the analog detection circuit for DC turnout assistance in order to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a DC turnout auxiliary simulation detection circuit. During testing, the circuit only needs to be inserted into the corresponding terminal, and the screen can intuitively display whether the line voltage is normal and provide various prompts such as correct voltage, reverse voltage, and no voltage. This greatly improves the accuracy of turnout status judgment and significantly shortens the problem location time, thereby ensuring the stable and efficient operation of the railway signaling system.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A DC turnout auxiliary simulation detection circuit includes a PICO microprocessor U20. A first optocoupler control chip is electrically connected to the PICO-IN1 pin of the PICO microprocessor U20. A connector X1 is electrically connected to the common terminal area of ​​the first optocoupler control chip. Solid-state relays U29 and U30 are electrically connected to the normally closed terminal X1-ND of the first optocoupler control chip. A second optocoupler control chip is electrically connected to the PICO-IN2 pin of the PICO microprocessor U20. A connector X2 is electrically connected to the common terminal area of ​​the second optocoupler control chip. Solid-state relays U31 and U32 are electrically connected to the normally closed terminal X2-ND of the first optocoupler control chip.

[0007] A solid-state relay U34 is electrically connected to the PICO-IN3 pin of the PICO microprocessor U20, and a solid-state relay U33 is electrically connected to the PICO-IN7 pin of the PICO microprocessor U20. A connector X5 is electrically connected between the solid-state relay U34 and the solid-state relay U33.

[0008] A solid-state relay U36 is electrically connected to the PICO-IN3 pin of the PICO microprocessor U20, and a solid-state relay U35 is electrically connected to the PICO-IN8 pin of the PICO microprocessor U20. A connector X6 is electrically connected between the solid-state relay U36 and the solid-state relay U35.

[0009] Preferably, the normally open terminal X1-B of the first optocoupler control chip and the normally open terminal X2-B of the second optocoupler control chip are electrically connected to a connector X3;

[0010] The control terminal of module 1 of the first optocoupler control chip is electrically connected to the PICO-OUT1 terminal of the PICO microprocessor U20, the pin 4 of the solid-state relay U29 is electrically connected to the PICO-IN1 pin of the PICO microprocessor U20, and the pin 4 of the solid-state relay U30 is electrically connected to the PICO-IN5 pin of the PICO microprocessor U20.

[0011] Preferably, the solid-state relays U29 and U31 have pins 1 and 2 electrically connected to connector X4-D, and the solid-state relays U30 and U32 have pins 1 and 2 electrically connected to connector X4. Connector X4-D and connector X4 are electrically connected through diode D13.

[0012] Preferably, the control terminal of module 2 of the second optocoupler control chip is electrically connected to the PICO-OUT2 terminal of the PICO microprocessor U20, and the pin 4 of the solid-state relay U32 is electrically connected to the PICO-IN6 pin of the PICO microprocessor U20.

[0013] Preferably, the solid-state relay U34 is electrically connected to pin PICO-IN3 of the PICO microprocessor U20, and the solid-state relay U33 is electrically connected to pin PICO-IN7 of the PICO microprocessor U20.

[0014] The solid-state relay U36 is electrically connected to pin PICO-IN4 of the PICO microprocessor U20, and the solid-state relay U35 is electrically connected to pin PICO-IN8 of the PICO microprocessor U20.

[0015] Preferably, pins PICO-IN11 and PICO-IN12 of the PICO microprocessor U20 are electrically connected to terminal blocks, the terminal blocks being of type KF301-5.0-3P.

[0016] Preferably, the PICO microprocessor U20 is electrically connected to a display screen.

[0017] Preferably, a diode D16 is electrically connected between the normally open terminal X1-B of the first optocoupler control chip and the connector X3, and a diode D15 is electrically connected between the normally open terminal X2-B of the second optocoupler control chip and the connector X3.

[0018] This utility model has at least the following beneficial effects:

[0019] During testing, simply insert the line into the corresponding terminal, and the screen will intuitively display whether the line voltage is normal, and provide various prompts such as voltage correct, reverse, no voltage, etc., which greatly improves the accuracy of turnout status judgment and shortens the problem location time, thereby ensuring the stable and efficient operation of the railway signaling system. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a circuit diagram of the first optocoupler control chip of this utility model;

[0022] Figure 2 This is a circuit diagram of the solid-state relay of this utility model;

[0023] Figure 3 This is the circuit diagram of the PICO microprocessor U20 of this utility model;

[0024] Figure 4 This is the electrical schematic diagram of this utility model.

[0025] In the figure, 1 is the PICO microprocessor U20; 2 is the first optocoupler control chip; and 3 is the second optocoupler control chip. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figures 1-4As shown, the DC turnout auxiliary simulation detection circuit provided in this embodiment includes a PICO microprocessor U201. A first optocoupler control chip 2 is electrically connected to the PICO-IN1 pin of the PICO microprocessor U201. A connector X1 is electrically connected to the common terminal area of ​​the first optocoupler control chip 2. Solid-state relays U29 and U30 are electrically connected to the normally closed terminal X1-ND of the first optocoupler control chip 2. A second optocoupler control chip 3 is electrically connected to the PICO-IN2 pin of the PICO microprocessor U201. A connector X2 is electrically connected to the common terminal area of ​​the second optocoupler control chip 3. Solid-state relays U31 and U32 are electrically connected to the normally closed terminal X2-ND of the first optocoupler control chip 2. The built-in PICO microprocessor 1 receives the lever circuit signal, thereby controlling the optocoupler switch to switch the action circuit mode and the indication circuit mode, realizing the multiplexing of the connector X1 and connector X2 ports.

[0028] In the operating circuit mode, connector X3 is electrically connected to the normally open terminal X1-B of the first optocoupler control chip 2 and the normally open terminal X2-B of the second optocoupler control chip 3. Connector X4-D is electrically connected to pins 1 and 2 of solid-state relays U29 and U31. Connector X4 is electrically connected to pins 1 and 2 of solid-state relays U30 and U32. Connector X4-D and connector X4 are electrically connected through diode D13. Connector X1 and connector X2 ports form a circuit with connector X3 port respectively. In the indicating circuit mode, connector X1 and connector X2 ports form a circuit with connector X4 port respectively. During testing, only the line needs to be inserted into the corresponding terminal. The screen can intuitively display whether the line voltage is normal and provide various prompts such as correct voltage, reverse voltage, and no voltage. This greatly improves the accuracy of turnout status judgment and greatly shortens the problem location time, thereby ensuring the stable and efficient operation of the railway signaling system.

[0029] Additionally, a solid-state relay U34 is electrically connected to the PICO-IN3 pin of the PICO microprocessor U201; a solid-state relay U33 is electrically connected to the PICO-IN7 pin of the PICO microprocessor U201; a connector X5 is electrically connected between solid-state relays U34 and U33; a solid-state relay U36 is electrically connected to the PICO-IN3 pin of the PICO microprocessor U201; and a solid-state relay U35 is electrically connected to the PICO-IN8 pin of the PICO microprocessor U201. Connector X6 is electrically connected between 36 and solid-state relay U35. Diode D16 is electrically connected between the normally open terminal X1-B of the first optocoupler control chip 2 and connector X3. Diode D15 is electrically connected between the normally open terminal X2-B of the second optocoupler control chip 3 and connector X3. Switching between action circuit and indication circuit modes: The lever on the left side of the screen can control whether the current device is in action circuit mode or indication circuit mode; when the lever is up, it is in action circuit mode, in which case the two sets of paths, connector X1-connector X4 and connector X2-connector X4, are monitored, corresponding to the circuit required by the action circuit.

[0030] When the lever is down, it is in the indication circuit mode. In this mode, the four paths of connector X1-connector X3, connector X2-connector X3, connector X5-connector X3, and connector X6-connector X3 form a complete loop with the indication circuit. When the lever is in the middle, it is in the automatic timed switching mode. In this mode, it will switch between the action circuit mode and the indication circuit mode every 20 seconds to simulate the state switching on the real path.

[0031] Furthermore, such as Figure 1 and Figure 2As shown, the control terminal of module 1 of the first optocoupler control chip 2 is electrically connected to the PICO-OUT1 terminal of the PICO microprocessor U201; pin 4 of the solid-state relay U29 is electrically connected to the PICO-IN1 pin of the PICO microprocessor U201; pin 4 of the solid-state relay U30 is electrically connected to the PICO-IN5 pin of the PICO microprocessor U201; the control terminal of module 2 of the second optocoupler control chip 3 is electrically connected to the PICO-OUT2 terminal of the PICO microprocessor U201; pin 4 of the solid-state relay U32 is electrically connected to the PICO-IN6 pin of the PICO microprocessor U201; and the solid-state relay U34 is electrically connected to the PICO-IN3 pin of the PICO microprocessor U201. U33 is electrically connected to pin PICO-IN7 of the PICO microprocessor U201. Solid-state relay U36 is electrically connected to pin PICO-IN4 of the PICO microprocessor U201. Solid-state relay U35 is electrically connected to pin PICO-IN8 of the PICO microprocessor U201. Pins PICO-IN11 and PICO-IN12 of the PICO microprocessor U201 are electrically connected to terminals. The terminal type is KF301-5.0-3P. Before testing, simply insert the 4 wires (for single DC motor equipment) or 6 wires (for dual DC motor equipment) on the DC turnout distribution panel into the terminals marked X1 to X6 in sequence to quickly complete the simulation environment setup, greatly improving the ease of use.

[0032] Furthermore, such as Figure 3 As shown, the PICO microprocessor U201 is electrically connected to a display screen. In the center of the screen are four colored blocks: connector X1, connector X2, connector X5, and connector X6. In the operating circuit mode, the four colored blocks are used to indicate whether the four sets of paths, connector X1-connector X3, connector X2-connector X3, connector X5-connector X3, and connector X6-connector X3, are connected to the correct voltage. If the voltage is correct, the colored block is green, indicating OK; if there is no voltage, it is yellow, indicating OFF; if the voltage is reversed, it is red, indicating REV.

[0033] When representing the circuit mode, the measuring device only forms a complete loop and has no monitoring function, so all the color blocks are gray. Whether the circuit is correct can be judged based on the status of the relays in the external circuit of the device.

[0034] The device employs sensors and intelligent analysis and control algorithms. The sensors collect data such as lever control signals and port voltages in the circuit and transmit this data to the intelligent analysis and control module. The analysis and control module analyzes and processes the data according to the pre-set algorithm, and uses optocoupler switches to change the circuit connection method. Finally, the analysis results are displayed on the screen in real time, providing reliable data support for the experiment.

[0035] like Figures 1-4 As shown, the principle of the DC turnout auxiliary simulation detection circuit provided in this embodiment is as follows:

[0036] The PICO-IN1 pin of the PICO microprocessor U201 is electrically connected to the first optocoupler control chip 2. The common terminal area of ​​the first optocoupler control chip 2 is electrically connected to connector X1. The normally closed terminal X1-ND of the first optocoupler control chip 2 is electrically connected to solid-state relays U29 and U30. The PICO-IN2 pin of the PICO microprocessor U201 is electrically connected to the second optocoupler control chip 3. The common terminal area of ​​the second optocoupler control chip 3 is electrically connected to connector X2. The normally closed terminal X2-ND of the first optocoupler control chip 2 is electrically connected to solid-state relays U31 and U32. The built-in PICO microprocessor 1 receives the signal from the lever circuit, thereby controlling the optocoupler switch to switch between the action circuit mode and the indication circuit mode, realizing the multiplexing of the connector X1 and connector X2 ports.

[0037] In the operating circuit mode, connector X3 is electrically connected to the normally open terminal X1-B of the first optocoupler control chip 2 and the normally open terminal X2-B of the second optocoupler control chip 3. Connector X4-D is electrically connected to pins 1 and 2 of solid-state relays U29 and U31, and connector X4 is electrically connected to pins 1 and 2 of solid-state relays U30 and U32. Connector X4-D and connector X4 are electrically connected through diode D13. Connector X1 and X2 ports form a circuit with connector X3 port. In the indicating circuit mode, connector X1 and X2 ports form a circuit with connector X4 port. During testing, simply insert the line into the corresponding terminal, and the screen will intuitively display whether the line voltage is normal and provide various prompts such as correct voltage, reverse voltage, and no voltage. This greatly improves the accuracy of turnout status judgment and significantly shortens the problem location time, thereby ensuring the stable and efficient operation of the railway signaling system.

[0038] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0040] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A DC switch auxiliary simulation detection circuit, comprising a PICO microprocessor U20 (1), characterized in that, The PICO-IN1 pin of the PICO microprocessor U20 (1) is electrically connected with a first optocoupler control chip (2), the common terminal of the first optocoupler control chip (2) is electrically connected with a joint X1, the normally closed terminal X1-ND of the first optocoupler control chip (2) is electrically connected with a solid state relay U29 and a solid state relay U30; The PICO-IN2 pin of the PICO microprocessor U20 (1) is electrically connected with a second optocoupler control chip (3), the common terminal of the second optocoupler control chip (3) is electrically connected with a joint X2, the normally closed terminal X2-ND of the first optocoupler control chip (2) is electrically connected with a solid state relay U31 and a solid state relay U32; The PICO-IN3 pin of the PICO microprocessor U20 (1) is electrically connected with a solid state relay U34, the PICO-IN7 pin of the PICO microprocessor U20 (1) is electrically connected with a solid state relay U33, and the solid state relay U34 and the solid state relay U33 are electrically connected with a joint X5; The PICO-IN3 pin of the PICO microprocessor U20 (1) is electrically connected with a solid state relay U36, the PICO-IN8 pin of the PICO microprocessor U20 (1) is electrically connected with a solid state relay U35, and the solid state relay U36 and the solid state relay U35 are electrically connected with a joint X6.

2. The auxiliary simulation detection circuit for a straight track turnout according to claim 1, characterized in that: The normally open terminal X1-B of the first optocoupler control chip (2) and the normally open terminal X2-B of the second optocoupler control chip (3) are electrically connected with a joint X3. The module 1 control terminal of the first optocoupler control chip (2) is electrically connected with the PICO-OUT1 terminal of the PICO microprocessor U20 (1), the pin 4 of the solid state relay U29 is electrically connected with the PICO-IN1 pin of the PICO microprocessor U20 (1), and the pin 4 of the solid state relay U30 is electrically connected with the PICO-IN5 pin of the PICO microprocessor U20 (1).

3. The auxiliary simulation detection circuit for a DC turnout according to claim 1, characterized in that: The pins 1 and 2 of the solid state relay U29 and the solid state relay U31 are electrically connected with a joint X4-D, the pins 1 and 2 of the solid state relay U30 and the solid state relay U32 are electrically connected with a joint X4, and the joint X4-D and the joint X4 are electrically connected through a diode D13.

4. The auxiliary simulation detection circuit for a DC turnout according to claim 1, characterized in that: The module 2 control terminal of the second optocoupler control chip (3) is electrically connected with the PICO-OUT2 terminal of the PICO microprocessor U20 (1), and the pin 4 of the solid state relay U32 is electrically connected with the PICO-IN6 pin of the PICO microprocessor U20 (1).

5. The auxiliary simulation detection circuit for a DC turnout according to claim 1, characterized in that: The solid state relay U34 is electrically connected with the PICO-IN3 pin of the PICO microprocessor U20 (1), and the solid state relay U33 is electrically connected with the PICO-IN7 pin of the PICO microprocessor U20 (1). The solid state relay U36 is electrically connected with the pin PICO-IN4 of the PICO microprocessor U20 (1), and the solid state relay U35 is electrically connected with the pin PICO-IN8 of the PICO microprocessor U20 (1).

6. The auxiliary simulation detection circuit for a DC turnout according to claim 1, characterized in that: The pin PICO-IN11 and the pin PICO-IN12 of the PICO microprocessor U20 (1) are electrically connected with a wiring terminal, and the model of the wiring terminal is KF301-5.0-3P.

7. The auxiliary simulation detection circuit for a diverging turnout according to claim 1, characterized in that: The PICO microprocessor U20 (1) is electrically connected with a display screen.

8. The auxiliary simulation detection circuit for a DC turnout according to claim 2, characterized in that: The normally open end X1-B of the first optocoupler control chip (2) is electrically connected with the joint X3 through a diode D16, and the normally open end X2-B of the second optocoupler control chip (3) is electrically connected with the joint X3 through a diode D15. The solid state relay U36 is electrically connected with the pin PICO-IN4 of the PICO microprocessor U20 (1), and the solid state relay U35 is electrically connected with the pin PICO-IN8 of the PICO microprocessor U20 (1). The pin PICO-IN11 and the pin PICO-IN12 of the PICO microprocessor U20 (1) are electrically connected with a wiring terminal, and the model of the wiring terminal is KF301-5.0-3P. The PICO microprocessor U20 (1) is electrically connected with a display screen. The normally open end X1-B of the first optocoupler control chip (2) is electrically connected with the joint X3 through a diode D16, and the normally open end X2-B of the second optocoupler control chip (3) is electrically connected with the joint X3 through a diode D15.

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