Railway train control device based on track short circuit

Abstract

The utility model discloses a railway train control device based on track short circuit, which belongs to the technical field of railway communication and comprises a power supply module, an MCU (microprogrammed control unit) module, a relay control module, a track short circuit module, an impedance sensing module and a storage module. The MCU module is externally connected with an RS485 interface of a disaster prevention detection system; the power supply module supplies power to the relay control module; the MCU module is respectively connected with the relay control module and the storage module; the relay control module is connected with the track short circuit module; the track short circuit module is connected with the impedance sensing module; and the impedance sensing module is connected with the MCU module. The problem that it is difficult to automatically control the railway train to stop running in time is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway communications, and in particular relates to a railway vehicle control device based on track short circuit. Background Art

[0002] Mountainous terrain is complex, characterized by steep slopes, sharp curves, and densely connected bridges and tunnels. These features expose railways to a variety of natural disaster threats. While disaster prevention detection systems installed along the railway to monitor natural disasters and foreign object intrusion can send disaster warnings to the railway safety protection center, these warnings cannot be directly fed back to trains operating near the accident site, nor can they automatically stop trains in a timely manner to directly ensure train safety. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a railway train control device based on track short circuit, which solves the problem that it is difficult to automatically control the railway train to stop moving in time.

[0004] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is:

[0005] The utility model provides a railway vehicle control device based on track short circuit, which includes a power supply module, an MCU module, a relay control module, a track short circuit module, an impedance sensing module and a storage module;

[0006] The MCU module is connected to the RS485 interface of the disaster prevention detection system; the power supply module supplies power to the relay control module; the MCU module is connected to the relay control module and the storage module respectively; the relay control module is connected to the track short-circuit module; the track short-circuit module is connected to the impedance sensing module; and the impedance sensing module is connected to the MCU module.

[0007] The beneficial effects of the present invention are as follows: the present invention provides a railway vehicle control device with track short circuit, in which the disaster prevention detection system sends a track short circuit control signal to the MCU module through the RS485 interface, so that the MCU module drives the relay control module to control the track short circuit module to short circuit the railway track, thereby making the track circuit system in a disconnected state, and the signal light displays a red light, which is intuitively fed back to the adjacent train, prompting the adjacent train to brake and avoid entering the accident railway line section; the power supply module supplies power to the relay control module, which can effectively ensure the stable control of the track short circuit module by the relay control module, thereby improving the continuous and stable effect of controlling the track short circuit; the impedance sensing module can effectively detect the impedance of the short circuit relay in the track short circuit module, and obtain the impedance monitoring signal, thereby confirming whether the short circuit relay is closed, providing a basis for confirming the track short circuit situation; the storage module can store the track short circuit control signal and the impedance monitoring signal as log data, providing a basis for locating and analyzing the accident section and maintaining the railway vehicle control device.

[0008] Preferably, the power supply module includes a surge protector F1, an air switch QF1, a transformer T1, a rectifier bridge H1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a step-down converter chip U1 of model MP2315GJ-Z, a resistor R1, a resistor R2 and a resistor R3;

[0009] The first and second ends of the surge protector F1 are connected to an external 220V AC power supply; the second end of the surge protector F1 is connected to the first end of the air switch QF1; the fourth end of the surge protector F1 is connected to the third end of the air switch QF1; the second and fourth ends of the air switch QF1 are connected to the first and second ends of the high-voltage side of the transformer T1 in a one-to-one correspondence; the third end of the transformer T1 is connected to the first end of the rectifier bridge H1; the fourth end of the transformer T1 is connected to the second end of the rectifier bridge H1; the third end of the rectifier bridge H1 is connected to one end of the capacitor C1, one end of the capacitor C2, and the buck converter core The third end of the chip U1, one end of the resistor R3, and one end of the capacitor C4 are connected and grounded; the fourth end of the rectifier bridge H1 is respectively connected to the other end of the capacitor C1, the other end of the capacitor C2 and the first end of the buck conversion chip U1, and outputs +24V power to the relay control module; the second end of the buck conversion chip U1 is connected to one end of the resistor R1; the other end of the resistor R1 is respectively connected to one end of the resistor R2, the other end of the resistor R3 and one end of the capacitor C3; the other end of the resistor R2 is respectively connected to the other end of the capacitor C3 and the other end of the capacitor C4, and outputs +5V power to the relay control module.

[0010] The beneficial effects of adopting the above-mentioned preferred scheme are as follows: the power module is connected to an external 220V AC power supply, and after passing through the surge protector F1, air switch QF1, transformer T1 and rectifier bridge H1, the voltage is stepped down and rectified to obtain a +24V DC power supply, and the voltage is stepped down by the step-down conversion chip U1 to obtain a +5V DC power supply. Based on the power module, the relay module can be powered, thereby ensuring the effect of relay control of railway track short circuit.

[0011] Preferably, the MCU module adopts a single chip microcomputer U5 of model STM32F407VET6 and an RS485 receiving chip U21 of model SP3485EEN;

[0012] The PA9 pin of the single-chip microcomputer U5 is connected to the RO pin of the RS485 receiving chip U21; the PA10 pin of the single-chip microcomputer U5 is connected to the DI pin of the RS485 receiving chip U21; the PA11 pin of the single-chip microcomputer U5 is respectively connected to the RE pin and DE pin of the RS485 receiving chip U21; the 485A pin and 485B pin of the RS485 receiving chip U21 are connected to the RS485 interface of the disaster prevention detection system; the PC8 pin, PC9 pin, PC10 pin, PC11 pin, PC12 pin, PC13 pin and PD2 pin of the single-chip microcomputer U5 are all connected to the storage module; the PD9 pin and PD10 pin of the single-chip microcomputer U5 are both connected to the relay control module; the PB6 pin, PB7 pin, PB10 pin and PB11 pin of the single-chip microcomputer U5 are all connected to the impedance sensing sub-module.

[0013] The beneficial effects of adopting the above-mentioned preferred scheme are as follows: after the MCU module receives the track short-circuit control signal, it sends a relay control signal to the relay control module, thereby driving the relay control module to control the track short-circuit module to short-circuit the railway track, so that the track circuit system is in a disconnected state, the signal light displays a red light, and intuitively feeds back to the adjacent train, prompting the adjacent train to brake and avoid entering the accident railway line section. The MCU module can also store the track short-circuit control signal and the impedance monitoring signal obtained by the impedance sensing module monitoring the track short-circuit module as log data in the storage module, thereby providing a basis for locating and analyzing the accident section and maintaining the railway vehicle control device.

[0014] Preferably, the storage module adopts the TF storage chip TF1 with the model number TF-CARD H1.8;

[0015] The DAT0 pin, DAT1 pin, DAT2 pin, DAT3 pin, CLK pin, CD pin and CMD pin of the TF storage chip TF1 are connected to the PC8 pin, PC9 pin, PC10 pin, PC11 pin, PC12 pin, PC13 pin and PD2 pin of the microcontroller U5 in a one-to-one correspondence.

[0016] The beneficial effects of adopting the above-mentioned preferred solution are as follows: the TF storage chip TF1 with model TF-CARD H1.8 has stable performance and can effectively store the log data generated by the single-chip computer U5, providing a basis for analyzing the time when the track short-circuit control signal is received and the impedance of the track short-circuit module, thereby determining and analyzing the time when the railway line accident occurs, the time when the warning control train stops, and the effect of the warning control train stopping.

[0017] Preferably, the relay control module includes a first relay control submodule and a second relay control submodule;

[0018] The first relay sub-control module and the second relay sub-control module respectively include a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a transistor Q1, a transistor Q2, a diode D1, a transistor output optocoupler U8 with a model number CYTLP521-1 (GB-TP2), a power relay U1 with a model number HF46F / 012-HS1_C5158828, and a wire-to-board needle header U3 with a model number XY-XHB2.54-2A11;

[0019] One end of the resistor R4 serves as the relay control input end; the other end of the resistor R4 is connected to one end of the resistor R5 and the base of the transistor Q1 respectively; the other end of the resistor R5 is connected to the emitter of the transistor Q1 and the second end of the transistor output optical coupler U8 respectively; the collector of the transistor Q1 is connected to one end of the resistor R6 and the first end of the transistor output optical coupler U8 respectively; the other end of the resistor R6 is connected to the other end of the capacitor C3; the third end of the transistor output optical coupler U8 is connected to the negative electrode of the diode D1, the fourth end of the power relay U1 and the other end of the capacitor C1 respectively. end is connected; the fourth end of the transistor output optocoupler U8 is connected to one end of the resistor R7; the other end of the resistor R7 is respectively connected to one end of the resistor R8 and one end of the resistor R9; the other end of the resistor R8 is connected to the emitter of the transistor Q2 and is grounded; the other end of the resistor R9 is connected to the base of the transistor Q2; the collector of the transistor Q2 is respectively connected to the anode of the diode D1 and the third end of the power relay U1; the first and second ends of the power relay U1 are connected one-to-one with the second and first ends of the wire-to-board needle holder U3 as the relay control output end;

[0020] The relay control input end of the first relay control submodule is connected to the P10 pin of the single-chip microcomputer U5; the relay control input end of the second relay control submodule is connected to the P9 pin of the single-chip microcomputer U5; the relay control output ends of the first relay control submodule and the second relay control submodule are both connected to the track short-circuit module.

[0021] The beneficial effect of adopting the above-mentioned preferred scheme is that after the first relay control submodule and the second relay control submodule receive the relay control signal from the MCU module, they can drive the control track short-circuit module to make the relay energized, causing the railway track to short-circuit, thereby providing a basis for the track circuit system to be in a disconnected state, the signal light to display a red light, prompting nearby trains to brake, and avoiding entering the accident railway line section.

[0022] Preferably, the first relay control submodule and the second relay control submodule further include an alarm light D2 of model LTE-1101J;

[0023] The DC24V terminal of the warning light D2 is connected to the cathode of the diode D1; and the GND terminal of the warning light D2 is grounded.

[0024] The beneficial effects of adopting the above-mentioned preferred scheme are: by setting the alarm light D2, it can not only effectively reflect that the first relay control submodule and the second relay control submodule have effectively received the relay control signal, but also when the track short-circuit module is damaged and cannot effectively short-circuit the railway track, the alarm light can be directly turned on, and the backup warning control train stops moving towards the accident site.

[0025] Preferably, the track short-circuit module includes a track short-circuit relay X1 and a track short-circuit relay X2 of model PNOZ V;

[0026] The contact end of the track short-circuit relay X1 is connected to the railway track on one side; the S12 end and S22 end of the track short-circuit relay X1 are connected one-to-one with the second end and the first end of the line-to-board needle seat U3 in the first relay control sub-module; the armature end of the first relay control sub-module is connected to the armature end of the second relay control sub-module; the contact end of the track short-circuit relay X2 is connected to the railway track on the other side; the S12 end and S22 end of the track short-circuit relay X2 are connected one-to-one with the second end and the first end of the line-to-board needle seat U3 in the second relay control sub-module.

[0027] The beneficial effects of adopting the above preferred solution are as follows: the first track short-circuit relay X1 is driven by the first relay control submodule so that its contact end and the armature end are closed, and the second track short-circuit relay X2 is driven by the second relay control submodule so that its contact end and the armature end are closed, thereby realizing the railway track short-circuit, the track circuit system is in a disconnected state, the signal light displays a red light, and intuitive feedback is given to the adjacent train, prompting the adjacent train to brake and avoid entering the accident railway line section.

[0028] Preferably, the impedance sensing module includes a first impedance sensing submodule and a second impedance sensing submodule;

[0029] The first impedance sensing submodule and the second impedance sensing submodule each include an impedance converter U18 of model AD5933YRSZ_C578324, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a capacitor C5, and a capacitor C6;

[0030] One end of the resistor R10 is connected to the 5th pin of the impedance converter U18 and serves as the input voltage terminal; the other end of the resistor R4 is connected to the 4th pin of the impedance converter U18; the 6th pin of the impedance converter U18 serves as the output voltage terminal; the 16th pin of the impedance converter U18 is connected to one end of the resistor R11 and serves as the impedance clock terminal; the other end of the resistor R11 is connected to one end of the resistor R12 and is externally connected to a +3.3V power supply; the other end of the resistor R12 is connected to the 15th pin of the impedance converter U18 and serves as the impedance clock terminal. Anti-data end; Pin 13 of the impedance converter U18 is respectively connected to Pin 14 and one end of the resistor R13, and is grounded; Pin 12 of the impedance converter U18 is connected to the other end of the resistor R13; Pin 10 of the impedance converter U18 is respectively connected to Pin 11, one end of the resistor R14, one end of the capacitor C5, and one end of the capacitor C6, and is externally connected to a +3.3V power supply; The other end of the capacitor C5 is connected to the other end of the capacitor C6 and is grounded; Pin 9 of the impedance converter U18 is connected to the other end of the resistor R14;

[0031] The input voltage terminal of the first impedance sensing submodule is connected to the contact terminal of the track short-circuit relay X1; the output voltage terminal of the first impedance sensing submodule is connected to the coil terminal of the track short-circuit relay X1; the impedance clock terminal and impedance data terminal of the first impedance sub-sensing module are connected one-to-one with the PB6 pin and PB7 pin of the microcontroller U5; the input voltage terminal of the second impedance sensing submodule is connected to the contact terminal of the track short-circuit relay X2; the output voltage terminal of the second impedance sensing submodule is connected to the coil terminal of the track short-circuit relay X2; the impedance clock terminal and impedance data terminal of the second impedance sub-sensing module are connected one-to-one with the PB10 pin and PB11 pin of the microcontroller U5.

[0032] The beneficial effects of adopting the above-mentioned preferred scheme are: the first impedance sensing submodule and the second impedance sensing submodule respectively monitor the track short-circuit relay X1 and the track short-circuit relay X2, and obtain corresponding impedance detection signals, which provide a basis for confirming the closing status of the track short-circuit relay and maintaining the railway vehicle control device.

[0033] Other advantages of the present invention will be analyzed in more detail in subsequent embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a block diagram of a railway vehicle control device based on track short circuit in an embodiment of the present utility model.

[0036] Figure 2 This is a circuit diagram of the power module in the embodiment of the utility model.

[0037] Figure 3 This is a circuit diagram of the single chip microcomputer U5 in the embodiment of the present utility model.

[0038] Figure 4 Schematic diagram of the circuit of each relay control submodule in the embodiment of the present utility model.

[0039] Figure 5 Schematic diagram of the circuit of each impedance sensor module in the embodiment of the present invention. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0041] like Figure 1 As shown, in one embodiment of the present utility model, this embodiment provides a railway vehicle control device based on track short circuit, including a power supply module, an MCU module, a relay control module, a track short circuit module, an impedance sensing module and a storage module;

[0042] The MCU module is connected to the RS485 interface of the disaster prevention detection system; the power supply module supplies power to the relay control module; the MCU module is connected to the relay control module and the storage module respectively; the relay control module is connected to the track short-circuit module; the track short-circuit module is connected to the impedance sensing module; and the impedance sensing module is connected to the MCU module.

[0043] In this embodiment, the disaster prevention detection system is a system set up by the railway security center that can send alarm instructions, or a disaster sensing detection alarm device set up along the railway line section that has disaster sensing detection capabilities and wireless signal transmission capabilities. It is an existing system or device, such as a railway line foreign object intrusion monitoring information upload device described in application number 202322187810X adopted by the railway line security center.

[0044] like Figure 2 As shown, the power module includes a surge protector F1, an air switch QF1, a transformer T1, a rectifier bridge H1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a step-down converter chip U1 of model MP2315GJ-Z, a resistor R1, a resistor R2 and a resistor R3;

[0045] The first and second ends of the surge protector F1 are connected to an external 220V AC power supply; the second end of the surge protector F1 is connected to the first end of the air switch QF1; the fourth end of the surge protector F1 is connected to the third end of the air switch QF1; the second and fourth ends of the air switch QF1 are connected to the first and second ends of the high-voltage side of the transformer T1 in a one-to-one correspondence; the third end of the transformer T1 is connected to the first end of the rectifier bridge H1; the fourth end of the transformer T1 is connected to the second end of the rectifier bridge H1; the third end of the rectifier bridge H1 is connected to one end of the capacitor C1, one end of the capacitor C2, and the buck converter core The third end of the chip U1, one end of the resistor R3, and one end of the capacitor C4 are connected and grounded; the fourth end of the rectifier bridge H1 is respectively connected to the other end of the capacitor C1, the other end of the capacitor C2 and the first end of the buck conversion chip U1, and outputs +24V power to the relay control module; the second end of the buck conversion chip U1 is connected to one end of the resistor R1; the other end of the resistor R1 is respectively connected to one end of the resistor R2, the other end of the resistor R3 and one end of the capacitor C3; the other end of the resistor R2 is respectively connected to the other end of the capacitor C3 and the other end of the capacitor C4, and outputs +5V power to the relay control module.

[0046] The MCU module uses a single-chip microcomputer U5 of model STM32F407VET6 and an RS485 receiving chip U21 of model SP3485EEN;

[0047] like Figure 3As shown, the PA9 pin of the single-chip microcomputer U5 is connected to the RO pin of the RS485 receiving chip U21; the PA10 pin of the single-chip microcomputer U5 is connected to the DI pin of the RS485 receiving chip U21; the PA11 pin of the single-chip microcomputer U5 is respectively connected to the RE pin and DE pin of the RS485 receiving chip U21; the 485A pin and the 485B pin of the RS485 receiving chip U21 are connected to the RS485 interface of the disaster prevention detection system; the PC8 pin, PC9 pin, PC10 pin, PC11 pin, PC12 pin, PC13 pin and PD2 pin of the single-chip microcomputer U5 are all connected to the storage module; the PD9 pin and PD10 pin of the single-chip microcomputer U5 are both connected to the relay control module; the PB6 pin, PB7 pin, PB10 pin and PB11 pin of the single-chip microcomputer U5 are all connected to the impedance sensing sub-module.

[0048] The storage module uses the TF storage chip TF1 with the model number TF-CARD H1.8;

[0049] The DAT0 pin, DAT1 pin, DAT2 pin, DAT3 pin, CLK pin, CD pin and CMD pin of the TF storage chip TF1 are connected to the PC8 pin, PC9 pin, PC10 pin, PC11 pin, PC12 pin, PC13 pin and PD2 pin of the microcontroller U5 in a one-to-one correspondence.

[0050] The relay control module includes a first relay control submodule and a second relay control submodule;

[0051] like Figure 4 As shown, the first relay sub-module and the second relay control sub-module respectively include a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a transistor Q1, a transistor Q2, a diode D1, a transistor output optocoupler U8 with a model number of CYTLP521-1 (GB-TP2), a power relay U1 with a model number of HF46F / 012-HS1_C5158828, and a wire-to-board needle header U3 with a model number of XY-XHB2.54-2A11;

[0052] One end of the resistor R4 serves as the relay control input end; the other end of the resistor R4 is connected to one end of the resistor R5 and the base of the transistor Q1 respectively; the other end of the resistor R5 is connected to the emitter of the transistor Q1 and the second end of the transistor output optical coupler U8 respectively; the collector of the transistor Q1 is connected to one end of the resistor R6 and the first end of the transistor output optical coupler U8 respectively; the other end of the resistor R6 is connected to the other end of the capacitor C3; the third end of the transistor output optical coupler U8 is connected to the negative electrode of the diode D1, the fourth end of the power relay U1 and the other end of the capacitor C1 respectively. end is connected; the fourth end of the transistor output optocoupler U8 is connected to one end of the resistor R7; the other end of the resistor R7 is respectively connected to one end of the resistor R8 and one end of the resistor R9; the other end of the resistor R8 is connected to the emitter of the transistor Q2 and is grounded; the other end of the resistor R9 is connected to the base of the transistor Q2; the collector of the transistor Q2 is respectively connected to the anode of the diode D1 and the third end of the power relay U1; the first and second ends of the power relay U1 are connected one-to-one with the second and first ends of the wire-to-board needle holder U3 as the relay control output end;

[0053] The relay control input end of the first relay control submodule is connected to the P10 pin of the single-chip microcomputer U5; the relay control input end of the second relay control submodule is connected to the P9 pin of the single-chip microcomputer U5; the relay control output ends of the first relay control submodule and the second relay control submodule are both connected to the track short-circuit module.

[0054] The first relay control submodule and the second relay control submodule each further include an alarm light D2 of model LTE-1101J;

[0055] The DC24V terminal of the warning light D2 is connected to the cathode of the diode D1; and the GND terminal of the warning light D2 is grounded.

[0056] The track short-circuit module includes a track short-circuit relay X1 and a track short-circuit relay X2 of model PNOZ V;

[0057] The contact end of the track short-circuit relay X1 is connected to the railway track on one side; the S12 end and S22 end of the track short-circuit relay X1 are connected one-to-one with the second end and the first end of the line-to-board needle seat U3 in the first relay control sub-module; the armature end of the first relay control sub-module is connected to the armature end of the second relay control sub-module; the contact end of the track short-circuit relay X2 is connected to the railway track on the other side; the S12 end and S22 end of the track short-circuit relay X2 are connected one-to-one with the second end and the first end of the line-to-board needle seat U3 in the second relay control sub-module.

[0058] The impedance sensing module includes a first impedance sensing submodule and a second impedance sensing submodule;

[0059] like Figure 5 As shown, the first impedance sensing submodule and the second impedance sensing submodule each include an impedance converter U18 of model AD5933YRSZ_C578324, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a capacitor C5 and a capacitor C6;

[0060] One end of the resistor R10 is connected to the 5th pin of the impedance converter U18 and serves as the input voltage terminal; the other end of the resistor R4 is connected to the 4th pin of the impedance converter U18; the 6th pin of the impedance converter U18 serves as the output voltage terminal; the 16th pin of the impedance converter U18 is connected to one end of the resistor R11 and serves as the impedance clock terminal; the other end of the resistor R11 is connected to one end of the resistor R12 and is externally connected to a +3.3V power supply; the other end of the resistor R12 is connected to the 15th pin of the impedance converter U18 and serves as the impedance clock terminal. Anti-data end; Pin 13 of the impedance converter U18 is respectively connected to Pin 14 and one end of the resistor R13, and is grounded; Pin 12 of the impedance converter U18 is connected to the other end of the resistor R13; Pin 10 of the impedance converter U18 is respectively connected to Pin 11, one end of the resistor R14, one end of the capacitor C5, and one end of the capacitor C6, and is externally connected to a +3.3V power supply; The other end of the capacitor C5 is connected to the other end of the capacitor C6 and is grounded; Pin 9 of the impedance converter U18 is connected to the other end of the resistor R14;

[0061] The input voltage terminal of the first impedance sensing submodule is connected to the contact terminal of the track short-circuit relay X1; the output voltage terminal of the first impedance sensing submodule is connected to the coil terminal of the track short-circuit relay X1; the impedance clock terminal and impedance data terminal of the first impedance sub-sensing module are connected one-to-one with the PB6 pin and PB7 pin of the microcontroller U5; the input voltage terminal of the second impedance sensing submodule is connected to the contact terminal of the track short-circuit relay X2; the output voltage terminal of the second impedance sensing submodule is connected to the coil terminal of the track short-circuit relay X2; the impedance clock terminal and impedance data terminal of the second impedance sub-sensing module are connected one-to-one with the PB10 pin and PB11 pin of the microcontroller U5.

[0062] In this embodiment, the track circuit system is an existing system for detecting the short-circuit state of the track circuit to control the signal machine, which includes components such as a transmitter, a receiver, and a track relay. The components work together to monitor the status of the track in real time: when the track is not short-circuited, the current emitted by the transmitter can flow back to the receiver through the track, and the track circuit is in a closed state. At this time, the signal machine connects the green light circuit, displays a green light, and allows the adjacent train to move forward; when the track is short-circuited, the current emitted by the transmitter cannot flow back to the receiver through the track, and the track circuit is in an open circuit state. At this time, the signal machine connects the red light circuit, displays a red light, and warns and controls the adjacent train to stop moving.

[0063] The working principle of the utility model is as follows: the utility model provides a railway vehicle control device based on track short circuit, which is connected to the RO pin of the RS485 receiving chip U21 through the PA9 pin of the single-chip microcomputer U5, the PA10 pin of the single-chip microcomputer U5 is connected to the DI pin of the RS485 receiving chip U21, the PA11 pin of the single-chip microcomputer U5 is respectively connected to the RE pin and DE pin of the RS485 receiving chip U21, and the 485A pin and 485B pin of the RS485 receiving chip U21 are connected to the RS485 interface of the disaster prevention detection system, so as to realize the transmission of the track short circuit control signal to the MCU module based on RS485 communication, thereby providing a basis for timely controlling the railway track short circuit; the PD9 pin and PD10 pin of the single-chip microcomputer U5 are connected to one end of the resistor R4 in the first relay control submodule and one end of the resistor R4 in the second relay control submodule in a one-to-one correspondence. The relay control signal is transmitted to the first relay control submodule and the second relay control submodule to drive the track short-circuit module to short-circuit the railway track; the S12 end and the S22 end of the track short-circuit relay X1 are connected to the second end and the first end of the line-to-board needle seat U3 in the first relay control submodule in a one-to-one correspondence, and the S12 end and the S22 end of the track short-circuit relay X2 are connected to the second end and the first end of the line-to-board needle seat U3 in the second relay control submodule in a one-to-one correspondence. It is possible to control the pull-in of the track short-circuit relay X1 and the track short-circuit relay X2 through the first relay control self-mode and the second relay control submodule. When the track line relay X1 and the track short-circuit relay are both in the pulled-in state, the railway track is short-circuited, so that the track circuit is in an open circuit state, and the signal light displays a red light, warning the control of the nearby train to stop to avoid entering the accident railway line section;The 5th pin of the impedance converter U18 in the first impedance sensing submodule is connected to the contact end of the track short-circuit relay X1, the output voltage end of the first impedance sensing submodule is connected to the coil end of the track short-circuit relay X1, and the impedance clock end and the impedance data end of the first impedance sub-sensing module are connected to the PB6 pin and the PB7 pin of the single-chip microcomputer U5 in a one-to-one correspondence, so as to realize the impedance monitoring signal of the track short-circuit relay X1 being fed back to the single-chip microcomputer U5, and the input voltage end of the second impedance sensing submodule is connected to the contact end of the track short-circuit relay X2, the output voltage end of the second impedance sensing submodule is connected to the coil end of the track short-circuit relay X2, and the impedance clock end and the impedance data end of the second impedance sub-sensing module are connected to the PB10 pin and the PB11 pin of the single-chip microcomputer U5 in a one-to-one correspondence, so as to realize the impedance monitoring signal of the track short-circuit relay X2 being fed back to the single-chip microcomputer U5, and through the DAT0 pin, DAT1 pin, and DAT2 pin of the TF storage chip TF1 The DAT3, CLK, CD, and CMD pins are connected in a one-to-one correspondence with the PC8, PC9, PC10, PC11, PC12, PC13, and PD2 pins of the single-chip computer U5. This allows the track short-circuit control signal and the impedance monitoring signals of the track short-circuit relay X1 and the track short-circuit relay X2 to be stored as log data in the TF storage chip TF1, thereby providing a basis for locating and analyzing the accident section, confirming the closure status of the track short-circuit relay, and maintaining the railway train control device. In addition, when an alarm light is set for this device, the DC24V terminal of the alarm light is connected to the cathode of the diode D1, and the GND terminal of the alarm light D2 is grounded. This can effectively indicate that the first and second relay control submodules have effectively received the relay control signal. In the event that the track short-circuit module is damaged and cannot effectively short-circuit the railway track, the alarm light can be directly illuminated, and the backup warning control train can stop moving toward the accident site.

[0064] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A railway vehicle control device based on track short circuit, characterized in that: Including power module, MCU module, relay control module, track short circuit module, impedance sensor module and storage module; The MCU module is connected to the RS485 interface of the disaster prevention detection system; the power supply module supplies power to the relay control module; the MCU module is connected to the relay control module and the storage module respectively; the relay control module is connected to the track short-circuit module; the track short-circuit module is connected to the impedance sensing module; and the impedance sensing module is connected to the MCU module.

2. The railway vehicle control device based on track short circuit according to claim 1, characterized in that: The power supply module includes a surge protector F1, an air switch QF1, a transformer T1, a rectifier bridge H1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a step-down converter chip U1 of model MP2315GJ-Z, a resistor R1, a resistor R2 and a resistor R3; The first and second ends of the surge protector F1 are connected to an external 220V AC power supply; the second end of the surge protector F1 is connected to the first end of the air switch QF1; the fourth end of the surge protector F1 is connected to the third end of the air switch QF1; the second and fourth ends of the air switch QF1 are connected to the first and second ends of the high-voltage side of the transformer T1 in a one-to-one correspondence; the third end of the transformer T1 is connected to the first end of the rectifier bridge H1; the fourth end of the transformer T1 is connected to the second end of the rectifier bridge H1; the third end of the rectifier bridge H1 is connected to one end of the capacitor C1, one end of the capacitor C2, and the buck converter core The third end of the chip U1, one end of the resistor R3, and one end of the capacitor C4 are connected and grounded; the fourth end of the rectifier bridge H1 is respectively connected to the other end of the capacitor C1, the other end of the capacitor C2 and the first end of the buck conversion chip U1, and outputs +24V power to the relay control module; the second end of the buck conversion chip U1 is connected to one end of the resistor R1; the other end of the resistor R1 is respectively connected to one end of the resistor R2, the other end of the resistor R3 and one end of the capacitor C3; the other end of the resistor R2 is respectively connected to the other end of the capacitor C3 and the other end of the capacitor C4, and outputs +5V power to the relay control module.

3. The railway vehicle control device based on track short circuit according to claim 2, characterized in that: The MCU module uses a single-chip microcomputer U5 of model STM32F407VET6 and an RS485 receiving chip U21 of model SP3485EEN; The PA9 pin of the single-chip microcomputer U5 is connected to the RO pin of the RS485 receiving chip U21; the PA10 pin of the single-chip microcomputer U5 is connected to the DI pin of the RS485 receiving chip U21; the PA11 pin of the single-chip microcomputer U5 is respectively connected to the RE pin and DE pin of the RS485 receiving chip U21; the 485A pin and 485B pin of the RS485 receiving chip U21 are connected to the RS485 interface of the disaster prevention detection system; the PC8 pin, PC9 pin, PC10 pin, PC11 pin, PC12 pin, PC13 pin and PD2 pin of the single-chip microcomputer U5 are all connected to the storage module; the PD9 pin and PD10 pin of the single-chip microcomputer U5 are both connected to the relay control module; the PB6 pin, PB7 pin, PB10 pin and PB11 pin of the single-chip microcomputer U5 are all connected to the impedance sensing sub-module.

4. The railway vehicle control device based on track short circuit according to claim 3, characterized in that: The storage module uses the TF storage chip TF1 with the model number TF-CARD H1.8; The DAT0 pin, DAT1 pin, DAT2 pin, DAT3 pin, CLK pin, CD pin and CMD pin of the TF storage chip TF1 are connected to the PC8 pin, PC9 pin, PC10 pin, PC11 pin, PC12 pin, PC13 pin and PD2 pin of the microcontroller U5 in a one-to-one correspondence.

5. The railway vehicle control device based on track short circuit according to claim 3, characterized in that: The relay control module includes a first relay control submodule and a second relay control submodule; The first relay control submodule and the second relay control submodule respectively include a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a transistor Q1, a transistor Q2, a diode D1, a transistor output optocoupler U8 with a model number CYTLP521-1 (GB-TP2), a power relay U1 with a model number HF46F / 012-HS1_C5158828, and a wire-to-board needle header U3 with a model number XY-XHB2.54-2A11; One end of the resistor R4 serves as the relay control input end; the other end of the resistor R4 is connected to one end of the resistor R5 and the base of the transistor Q1 respectively; the other end of the resistor R5 is connected to the emitter of the transistor Q1 and the second end of the transistor output optical coupler U8 respectively; the collector of the transistor Q1 is connected to one end of the resistor R6 and the first end of the transistor output optical coupler U8 respectively; the other end of the resistor R6 is connected to the other end of the capacitor C3; the third end of the transistor output optical coupler U8 is connected to the negative electrode of the diode D1, the fourth end of the power relay U1 and the other end of the capacitor C1 respectively. end is connected; the fourth end of the transistor output optocoupler U8 is connected to one end of the resistor R7; the other end of the resistor R7 is respectively connected to one end of the resistor R8 and one end of the resistor R9; the other end of the resistor R8 is connected to the emitter of the transistor Q2 and is grounded; the other end of the resistor R9 is connected to the base of the transistor Q2; the collector of the transistor Q2 is respectively connected to the anode of the diode D1 and the third end of the power relay U1; the first and second ends of the power relay U1 are connected one-to-one with the second and first ends of the wire-to-board needle holder U3 as the relay control output end; The relay control input end of the first relay control submodule is connected to the P10 pin of the single-chip microcomputer U5; the relay control input end of the second relay control submodule is connected to the P9 pin of the single-chip microcomputer U5; the relay control output ends of the first relay control submodule and the second relay control submodule are both connected to the track short-circuit module.

6. The railway vehicle control device based on track short circuit according to claim 5, characterized in that: The first relay control submodule and the second relay control submodule each further include an alarm light D2 of model LTE-1101J; The DC24V terminal of the warning light D2 is connected to the cathode of the diode D1; and the GND terminal of the warning light D2 is grounded.

7. The railway vehicle control device based on track short circuit according to claim 5, characterized in that: The track short-circuit module includes a track short-circuit relay X1 and a track short-circuit relay X2 of model PNOZ V; The contact end of the track short-circuit relay X1 is connected to the railway track on one side; the S12 end and S22 end of the track short-circuit relay X1 are connected one-to-one with the second end and the first end of the line-to-board needle seat U3 in the first relay control sub-module; the armature end of the first relay control sub-module is connected to the armature end of the second relay control sub-module; the contact end of the track short-circuit relay X2 is connected to the railway track on the other side; the S12 end and S22 end of the track short-circuit relay X2 are connected one-to-one with the second end and the first end of the line-to-board needle seat U3 in the second relay control sub-module.

8. The railway vehicle control device based on track short circuit according to claim 7, characterized in that: The impedance sensing module includes a first impedance sensing submodule and a second impedance sensing submodule; The first impedance sensing submodule and the second impedance sensing submodule each include an impedance converter U18 of model AD5933YRSZ_C578324, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a capacitor C5, and a capacitor C6; One end of the resistor R10 is connected to the 5th pin of the impedance converter U18 and serves as the input voltage terminal; the other end of the resistor R4 is connected to the 4th pin of the impedance converter U18; the 6th pin of the impedance converter U18 serves as the output voltage terminal; the 16th pin of the impedance converter U18 is connected to one end of the resistor R11 and serves as the impedance clock terminal; the other end of the resistor R11 is connected to one end of the resistor R12 and is externally connected to a +3.3V power supply; the other end of the resistor R12 is connected to the 15th pin of the impedance converter U18 and serves as the impedance clock terminal. Anti-data end; Pin 13 of the impedance converter U18 is respectively connected to Pin 14 and one end of the resistor R13, and is grounded; Pin 12 of the impedance converter U18 is connected to the other end of the resistor R13; Pin 10 of the impedance converter U18 is respectively connected to Pin 11, one end of the resistor R14, one end of the capacitor C5, and one end of the capacitor C6, and is externally connected to a +3.3V power supply; The other end of the capacitor C5 is connected to the other end of the capacitor C6 and is grounded; Pin 9 of the impedance converter U18 is connected to the other end of the resistor R14; The input voltage terminal of the first impedance sensing submodule is connected to the contact terminal of the track short-circuit relay X1; the output voltage terminal of the first impedance sensing submodule is connected to the coil terminal of the track short-circuit relay X1; the impedance clock terminal and the impedance data terminal of the first impedance sensing submodule are connected one-to-one with the PB6 pin and the PB7 pin of the microcontroller U5; the input voltage terminal of the second impedance sensing submodule is connected to the contact terminal of the track short-circuit relay X2; the output voltage terminal of the second impedance sensing submodule is connected to the coil terminal of the track short-circuit relay X2; the impedance clock terminal and the impedance data terminal of the second impedance sensing submodule are connected one-to-one with the PB10 pin and the PB11 pin of the microcontroller U5.

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