Switch snow-melting conversion system

Abstract

This invention relates to a turnout snow melting conversion system, characterized by comprising: a mode conversion switch (1), a CPU2, an automatic control module (3), a manual control module (4), a peak-shaving start unit (5), a relay start unit (6), a power supply module (7), a display module (8), a communication module (9), an input interface unit (10), and an output interface (11). When the mode conversion switch is in automatic mode, the MAS first receives an enable signal to prevent misoperation, and simultaneously sends an automatic control signal to the automatic control module. At this time, the automatic control module opens the AND gate, and when the input interface unit receives the heating start control information, it directly transmits it to the relay start unit. The relay start unit then starts the AC contactor during peak-shaving to initiate heating. This turnout snow melting conversion system is easy to operate, aesthetically pleasing, and can realize manual control, automatic control, peak-shaving start, fault alarm, command judgment, and auxiliary cabinet cascading for snow melting control.

Description

Technical Field

[0001] This invention relates to a turnout snow melting system, and more particularly to a turnout snow melting conversion system. Background Technology

[0002] The turnout snow melting system is an auxiliary heating device that ensures the normal switching of turnout equipment. It is one of the basic components of railway turnout switching equipment. Other domestic manufacturers' turnout snow melting systems are composed of existing PLC technology and current and voltage monitoring equipment. They achieve manual and automatic control functions through simple relay control. They have poor scalability, high cost, and single control function, which cannot meet users' needs for manual and automatic functions. Summary of the Invention

[0003] The purpose of this invention is to provide a turnout snow melting switching system that is easy to operate, aesthetically pleasing, and capable of manual control, automatic control, off-peak start-up, fault alarm, command judgment, and auxiliary cabinet cascading.

[0004] The objective of this invention is achieved by providing a turnout snow melting conversion system, comprising: a mode conversion switch, a CPU, an automatic control module, a manual control module, a peak-shaving start unit, a relay start unit, a power supply module, a display module, a communication module, an input interface unit, and an output interface.

[0005] The aforementioned mode switching switch is used to switch between three modes: off, manual, and automatic, for the turnout snow melting mechanism.

[0006] CPU: Central processing unit, used to receive heating data information, output heating information, output heating status information and display information under automatic conditions;

[0007] Automatic control module: used to transmit heating start and stop information in automatic control mode;

[0008] Manual control module: used to transmit heating start and stop information in manual control mode;

[0009] Peak-off start-up unit: used to realize peak-off start-up of each output circuit to prevent the impact of start-up inrush current on the circuit;

[0010] Relay starting unit: used to achieve isolation between high voltage and low voltage, isolation between control circuit and starting circuit, and feedback of working status;

[0011] Power module: Used to distribute control power and startup power;

[0012] Display module: Used to display working status and control status;

[0013] Communication module: Used to enable information exchange with the PCU.

[0014] When the mode switch is in automatic mode, MAS first receives the enable signal to prevent misoperation, and at the same time sends an automatic control signal to the automatic control module. At this time, the automatic control module opens the AND gate, and when the input interface unit receives the heating start control information, it directly transmits it to the relay start unit. The relay start unit starts the AC contactor during off-peak hours to start heating.

[0015] When the mode switch is in manual mode, the manual control module directly starts the relay starting unit, which in turn starts the AC contactor to complete the heating start.

[0016] When the mode selector switch is in the off mode, the relay start unit cannot receive the start signal, and heating stops.

[0017] During operation, the CPU, mode switching switch, and relay start unit transmit display information to the display module to display the working status and control status.

[0018] Features of this invention:

[0019] 1. Modular design, high degree of functional integration, small size, convenient installation, maintenance and operation.

[0020] 2. It has complete functions, including manual control, automatic control, off-peak start-up, fault alarm, command judgment, and auxiliary cabinet cascading.

[0021] The present invention will be further described below with reference to the accompanying drawings of the embodiments. Attached Figure Description

[0022] Figure 1 This is a diagram of the MAS system architecture for the manual / automatic conversion module;

[0023] Figure 2 This is the label diagram for the MAS system, which is a manual / automatic conversion module.

[0024] In the diagram: 1. Mode conversion switch; 2. CPU; 3. Automatic control module; 4. Manual control module; 5. Peak-shaving start unit; 6. Relay start unit; 7. Power supply module; 8. Display module; 9. Communication module; 10. Input interface unit; 11. Output interface; 12. Filtering module; 13. Automatic mode input condition software interface; 14. Enable signal; 15. AC contactor; 16. Operating mode signal output interface; 17. Cascade signal output interface; 18.

[0025] Automatic mode input condition hardwired interface. Detailed Implementation

[0026] The following will describe in detail the embodiments of the present invention with reference to the accompanying drawings and examples, so as to fully understand how the present invention uses technical means to solve technical problems and achieve technical effects and to implement it accordingly.

[0027] like Figure 1 As shown, the present invention relates to a turnout snow melting conversion system, comprising: a mode conversion switch 1, a CPU 2, an automatic control module 3, a manual control module 4, a peak-shaving start unit 5, a relay start unit 6, a power supply module 7, a display module 8, a communication module 9, an input interface unit 10, and an output interface 11;

[0028] Mode conversion switch 1: Used to switch between three modes of turnout snow melting mechanism: off, manual, and automatic.

[0029] CPU2: The central processing unit, used to receive heating data information, output heating information, output heating status information and display information under automatic conditions;

[0030] Automatic control module 3: Used to transmit heating start and stop information in automatic control mode;

[0031] Manual control module 4: Used to transmit heating start and stop information in manual control mode;

[0032] Peak-off start-up unit 5: Used to realize peak-off start-up of each output circuit and prevent the impact of start-up inrush current on the circuit;

[0033] Relay starting unit 6: used to achieve isolation between high voltage and low voltage, isolation between control circuit and starting circuit, and feedback of working status;

[0034] Power module 7: Used to distribute control power and startup power;

[0035] Display module 8: Used to display working status and control status;

[0036] Communication module 9: Used to realize information exchange with PCU2.

[0037] The CPU2 is electrically connected to the communication module 9 on one hand to receive commands or information from the communication module 9, and is also connected to the enable signal 14 terminal on the other hand. It is also connected to the input interface unit 10 and the display module 8 through the interface. The mode conversion switch 1 is electrically connected to the display module 8, the automatic control module 3, and the manual control module 4.

[0038] The input terminal of the input interface unit 10 is electrically connected to the automatic mode input condition software interface 13, and the hard-wired signal is directly transmitted to the input interface unit 10 of MAS. The output terminal is electrically connected to the automatic control module 3 via the filter module 12. The automatic control module 3 is controlled by the start signal 14 on one hand and by the mode conversion switch 1 on the other hand. When the start signal 14 and the mode conversion switch 1 are both at a high level, the signal of the automatic mode input condition software interface 13 is filtered by the filter module 12 and then enters the manual control module 4. The manual control module 4 further controls the signal to the relay start unit 6 via the peak shift start unit 5. The relay start unit 6 controls the switching of the turnout snow melting mechanism through the AC contactor 15 via the output interface 11.

[0039] Heating command information is transmitted from the control cabinet processing control unit to the MAS. The data information in the heating command information is transmitted to the CPU2 through the communication module 9. The CPU2 processes the data and then transmits it to the input interface unit 10.

[0040] The mode conversion switch 1 is used to switch between three modes: off, manual, and automatic, for the turnout snow melting mechanism.

[0041] When the mode switch 1 is in automatic mode, MAS first receives the enable signal 14 to prevent misoperation, and at the same time sends an automatic control signal to the automatic control module 3. At this time, the automatic control module 3 begins to receive and transmit automatic control information. When the input interface unit 10 receives the heating start control information, it directly transmits it to the relay start unit 6. The relay start unit 6 starts the AC contactor 15 to start heating.

[0042] When the mode switch 1 is in manual mode, the manual control module 4 directly starts the relay starting unit 6, and the relay starting unit 6 starts the AC contactor 15 in a staggered manner to complete the start heating.

[0043] When the mode switch 1 is in the off mode, the relay start unit 6 cannot receive the start signal, and heating stops.

[0044] During operation, CPU2, mode switching switch 1, and relay start unit 6 transmit display information to display module 8 to display the working status and control status.

[0045] The conversion system outputs the current operating status of the system—whether it is manual, automatic, or off—through the working mode signal output interface 16, and sends this information to the external monitoring system.

[0046] When an auxiliary cabinet needs to be added to the snow melting control cabinet, the conversion system in the main cabinet outputs the control status to the MAS in the auxiliary cabinet through the cascaded signal output interface 17. The auxiliary cabinet turns the heating on and off according to the control status of the main cabinet.

[0047] Each control loop of the control cabinet receives an external 24V control level through the automatic mode input condition hard-wired interface 18 and transmits it to the input interface unit 10.

[0048] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A snow-melt switch system, comprising: Mode switching switch (1), CPU (2), automatic control module (3), manual control module (4), off-peak start unit (5), relay start unit (6), power supply module (7), display module (8), communication module (9), input interface unit (10), output interface (11); Mode switching switch (1): used to switch between three modes of turnout snow melting mechanism: off, manual, and automatic when heating command information is received; CPU (2): is the central processing unit, used to receive heating data information, output heating information, output heating status information and display information under automatic conditions; Automatic control module (3): used to transmit heating start and stop information in automatic control mode; Manual control module (4): used to transmit heating start and stop information in manual control mode; Peak-off start unit (5): used to realize peak-off start of each output circuit and prevent the impact of start-up inrush current on the circuit; Relay starting unit (6): used to achieve isolation between high voltage and low voltage, isolation between control circuit and starting circuit, and feedback of working status; Power module (7): used to distribute control power and startup power; Display module (8): Used to display working status and control status; Communication module (9): used to realize information interaction with CPU (2); The CPU (2) is electrically connected to the communication module (9) on one hand to receive commands or information from the communication module (9), and is also connected to an enable signal terminal on the other hand. It is also connected to the input interface unit (10) and the display module (8) via an interface. The mode conversion switch (1) is electrically connected to the display module (8), the automatic control module (3), and the manual control module (4). The input terminal of the input interface unit (10) is electrically connected to the automatic mode input condition software interface (13), and the hard-wired signal is directly transmitted to the input interface unit (10). The output terminal is connected to the automatic control module (3) via the filter module (12). The automatic control module (3) is controlled by the start signal (14) on one hand and the mode conversion switch (1) on the other. When the start signal (14) and the mode conversion switch (1) are both at a high level, the automatic mode input condition software interface (13) signal is filtered by the filter module (12) and then enters the manual control module (4). The manual control module (4) further controls the relay start unit (6) through the peak shift start unit (5). The relay start unit (6) controls the turnout snow melting mechanism through the AC contactor (15) via the output interface (11).

2. The switch snow-melt transition system of claim 1, wherein: Heating command information is transmitted from the control cabinet processing control unit to the MAS. The data information in the heating command information is transmitted to the CPU (2) through the communication module (9). The CPU (2) processes the data and then transmits it to the input interface unit (10).

3. The switch snow-melt transition system of claim 1, wherein: When the mode switch (1) is in automatic mode, MAS first receives the start signal (14) to prevent misoperation, and at the same time sends an automatic control signal to the automatic control module (3). At this time, the automatic control module (3) opens the AND gate, and when the input interface unit (10) receives the heating start control information, it directly transmits it to the relay start unit (6). The relay start unit (6) starts the AC contactor (15) in a staggered manner to start heating.

4. The switch snow-melt transition system of claim 1, wherein: When the mode switch (1) is in manual mode, the manual control module (4) directly starts the relay starting unit (6), and the relay starting unit (6) starts the AC contactor (15) in a staggered manner to complete the start heating.

5. The switch snow-melt transition system of claim 1, wherein: When the mode switching switch (1) is in the off mode, the relay starting unit (6) cannot receive the start signal, and heating stops.

6. A turnout snow melting conversion system according to claim 1, characterized in that: It also includes at least a working mode signal output interface (16), and a mode switching switch (1) outputs manual or automatic or off working status information to an external monitoring system through the working mode signal output interface (16).

7. A turnout snow melting conversion system according to claim 1, characterized in that: It also includes at least a cascaded signal output interface (17). The mode conversion switch (1) outputs the control status to the MAS in the auxiliary cabinet through the cascaded signal output interface (17). When the snow melting control cabinet needs to add an auxiliary cabinet, the auxiliary cabinet opens and closes according to the control status of the main cabinet, and outputs manual or automatic or closed working status information to the external monitoring system. Each control loop of the control cabinet receives the external 24V control level through the automatic mode input condition hard-wired interface (18) and transmits it to the input interface unit (10).

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