Testing device of turnout snow melting system equipment monitoring module

Abstract

The utility model discloses a testing device for an equipment monitoring module of a turnout snow melting system, which comprises an industrial personal computer connected with a communication module. The communication module is connected with a monitoring module to be tested; a driving input port and a switching value acquisition port of the monitoring module are connected with the rotary switch SF1; driving output ports Q1 to Q8 of the monitoring module are respectively connected with relays KA1 to KA8; a three-phase current acquisition port of the monitoring module is connected with the current transformers BEA1 to BEA3; a three-phase voltage acquisition port of the monitoring module is connected with a three-phase voltage transformer BEV; the current transformers BEA1-BEA3 and the three-phase voltage transformer BEV are connected with an AC power supply loop of an AC power supply; the monitoring module is connected with the rail temperature transmitter TF; and the rail temperature transmitter TF is connected with the rail temperature sensor BT. According to the utility model, the monitoring module arranged on the electric heating turnout snow melting system equipment can be reliably tested, and the testing efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of railway signal testing, in particular to a testing device for a monitoring module of a turnout snow melting system equipment. Background Art

[0002] In the field of railway transportation, the harm of low temperature, rain and snow in winter to turnout switching has gradually emerged, becoming one of the major hazards restricting the development of railway transportation. In order to achieve turnout snow removal, the electric heating turnout snow melting system equipment has been put into use. Its snow melting effect is good, which reduces the snow removal labor intensity of station operators and reduces personal safety accidents caused by snow removal in winter.

[0003] The electric heating turnout snow melting system equipment is one of the basic components of turnout switching equipment, and is suitable for snow removal of switching turnouts in the fields of railway trunk lines, passenger dedicated lines, heavy-load lines, intercity rail transit, etc. The basic functions of the system are: when snowfall occurs or the ambient temperature changes, the rail temperature is collected by the rail temperature sensor, and the monitoring module in the electrical control cabinet makes a judgment, and each heating circuit is automatically or manually started (closed) to melt the snow and ice at the turnout switching part to ensure the normal switching of the turnout in winter. It can also realize dynamic monitoring of the working status, heating time and other information of each heating circuit and upload it to the station control terminal for display and recording in real time, and finally realize remote real-time monitoring and recording of the electric heating turnout snow melting system of the entire line.

[0004] At present, in order to ensure the production quality of the electric heating turnout snow melting system equipment, before the equipment leaves the factory, it is necessary to test the functions (such as data acquisition function) of the original monitoring module on the electric heating turnout snow melting system equipment in advance.

[0005] However, the existing technology has low testing efficiency for the original monitoring module on the electric heating turnout snow melting system equipment, and thus cannot meet the joint debugging and testing requirements for the electric heating turnout snow melting system equipment.

[0006] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Utility Model Content

[0007] The utility model aims to provide a testing device for a monitoring module of a turnout snow melting system equipment in view of the technical defects in the prior art.

[0008] To this end, the utility model provides a test device for a monitoring module of a turnout snow melting system, comprising: an alternating current power supply AC, an industrial computer, a communication module, current transformers BEA1 to BEA3, a three-phase voltage transformer BEV, a rail temperature transmitter TF and a rail temperature sensor BT;

[0009] The RS232 port on the industrial computer is connected to the RS232 port on the communication module through an RS232 serial port data cable;

[0010] The CAN bus port on the communication module is connected to the CAN bus port on the monitoring module to be tested in the turnout snow melting system equipment through the CAN bus;

[0011] The drive input port and switch quantity acquisition port on the monitoring module are connected to the rotary switch SF1;

[0012] The drive output ports Q1 to Q8 on the monitoring module are connected to relays KA1 to KA8 respectively;

[0013] The three-phase current acquisition port on the monitoring module is connected to the current transformers BEA1 to BEA3;

[0014] The three-phase voltage acquisition port on the monitoring module is connected to the three-phase voltage transformer BEV;

[0015] The current transformers BEA1 to BEA3 and the three-phase voltage transformer BEV are respectively connected to the power supply circuit of the alternating current power source AC;

[0016] The rail temperature transmitter port on the monitoring module is connected to the temperature data output port of the rail temperature transmitter TF;

[0017] The temperature data input port of the rail temperature transmitter TF is connected to the rail temperature sensor BT.

[0018] It can be seen from the technical solution provided by the above utility model that, compared with the prior art, the utility model provides a testing device for a monitoring module of a turnout snow melting system equipment, which is scientifically designed and can reliably test the monitoring module on the electric heating turnout snow melting system equipment (such as RD1 type electric heating turnout snow melting system equipment), thereby facilitating further meeting the needs of joint debugging and testing of the electric heating turnout snow melting system equipment, and has great production practice significance.

[0019] By applying the utility model, the driving function, collection function, communication function and other functions of the monitoring module on the electric heating turnout snow melting system equipment (such as the RD1 type electric heating turnout snow melting system equipment) can be effectively tested, thereby improving the test efficiency and ensuring the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the first part of a test device for a monitoring module of a turnout snow melting system provided by the utility model;

[0021] Figure 2A schematic diagram of the second part of a test device for a monitoring module of a turnout snow melting system provided by the utility model;

[0022] Figure 3 A schematic diagram of the third part of a test device for a monitoring module of a turnout snow melting system provided by the utility model;

[0023] Figure 4 The utility model provides a schematic diagram of a testing device for a monitoring module of a turnout snow melting system equipment. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] See also Figures 1 to 4 The utility model provides a testing device for a monitoring module of a turnout snow melting system equipment, which is used to test the functions (such as driving function, collection function and communication function) of the original monitoring module on the electric heating turnout snow melting system equipment (specifically RD1 type electric heating turnout snow melting system equipment).

[0028] The test device includes: an alternating current power supply AC, an industrial computer 100, a communication module 200, current transformers BEA1-BEA3, a three-phase voltage transformer BEV, a rail temperature transmitter TF and a rail temperature sensor BT;

[0029] The alternating current power source AC is conductively connected to the industrial computer 100 , the communication module 200 , the monitoring module 300 and the rail temperature transmitter TF through the circuit breaker QF.

[0030] The RS232 port on the industrial computer 100 is connected to the RS232 port on the communication module 200 via an RS232 serial port data cable;

[0031] The CAN bus port on the communication module 200 is connected to the CAN bus port on the monitoring module 300 that needs to be tested in the turnout snow melting system equipment through the CAN bus;

[0032] The drive input port and the switch quantity acquisition port on the monitoring module 300 are connected to the rotary switch SF1.

[0033] The drive output ports Q1 to Q8 on the monitoring module 300 are connected to the relays KA1 to KA8 respectively;

[0034] The three-phase current acquisition port on the monitoring module 300 is connected to the current transformers BEA1 to BEA3;

[0035] The three-phase voltage acquisition port on the monitoring module 300 is connected to the three-phase voltage transformer BEV;

[0036] The current transformers BEA1 to BEA3 and the three-phase voltage transformer BEV are respectively connected to the power supply circuit of the alternating current power source AC;

[0037] The rail temperature transmitter port on the monitoring module 300 is connected to the temperature data output port of the rail temperature transmitter TF;

[0038] The temperature data input port of the rail temperature transmitter TF is connected to the rail temperature sensor BT.

[0039] In the present invention, in a specific implementation, the alternating current power source AC is specifically a 220V alternating current power source.

[0040] In the present utility model, in specific implementation, the live wire L of the AC power source AC is connected to the input port 1 of the circuit breaker QF through the wiring terminal 1D-1;

[0041] The neutral line N of the AC power source AC is connected to the input port 3 of the circuit breaker QF through the terminal 1D-2;

[0042] The ground wire G of the AC power supply is connected to the ground PE through the terminal 1D-3;

[0043] Output port 2 and output port 4 of circuit breaker QF are connected to terminal blocks 1D-4 and 1D-5 respectively;

[0044] It should be noted that the circuit breaker QF is the main switch of the test device provided by the utility model, and the wiring terminals 1D-4 and 1D-5 are power distribution terminals. After closing the circuit breaker QF, the wiring terminals 1D-4 and 1D-5 can be energized, thereby introducing 220V AC power supply AC into the test device to power the electrical devices in the device.

[0045] In specific implementation, the connection terminal 1D-4 is respectively connected to the live power port L of the industrial computer 100, the live power port 220VL of the communication module 200, the live power port 220VL of the monitoring module 300, and the live power port 220VL of the rail temperature transmitter TF;

[0046] The connection terminal 1D-5 is respectively connected to the neutral power port N of the industrial computer 100, the neutral power port 220VN of the communication module 200, the neutral power port 220VN of the monitoring module 300, and the neutral power port 220VN of the rail temperature transmitter TF;

[0047] It should be noted that after the terminals 1D-4 and 1D-5 are energized, they are used to provide 220V AC power to the industrial computer 100, the communication module 200, the monitoring module 300 and the rail temperature transmitter TF, so that the industrial computer 100, the communication module 200, the monitoring module 300 and the rail temperature transmitter TF can enter a normal working state.

[0048] In specific implementation, the drive input port 0-IN on the monitoring module 300 is connected to the connection terminal 14 of the rotary switch SF1;

[0049] Terminal 13 of rotary switch SF1 is connected to terminal 1D-4;

[0050] In specific implementation, the drive output ports Q1 to Q8 of the monitoring module 300 are connected to one end of the coils of the relays KA1 to KA8 respectively;

[0051] The other ends of the coils of relays KA1 to KA8 are connected to the terminal 1D-5 after the currents intersect.

[0052] It should be noted that, in the present invention, the rotary switch SF1 is a working mode conversion switch. When the rotary switch SF1 is placed in the "automatic" position, its connection terminals 13 and 14 are closed, and when the temperature data collected from the temperature sensor (i.e., the rail temperature sensor BT) reaches the trigger condition of the drive pickup command of the monitoring module 300 (for example, the collected temperature is lower than the preset starting temperature), the monitoring module 300 automatically issues a drive pickup command, so that the coils of the relays KA1 to KA8 are energized and picked up in sequence (i.e., the contacts of the relays are closed);

[0053] When the rotary switch SF1 is placed in the "automatic" position and the temperature data collected from the temperature sensor BT reaches the trigger condition for the monitoring module to drive the falling command (for example, the collected temperature is higher than the preset stop temperature, and the preset stop temperature is greater than the preset start temperature), the monitoring module 300 automatically issues a driving falling command to cause the coils of relays KA1 to KA8 to lose power and fall in sequence (i.e., the contacts of the relays are disconnected).

[0054] It should be noted that in the present invention, the coil energization or release state of relays KA1 to KA8 is used to reflect whether the drive command of the monitoring module is successfully issued. Relays KA1 to KA8 are used to replace the contactors in the original snow melting system equipment (such as the RD1 electric heating turnout snow melting system equipment produced by China Railway Communication Signal Co., Ltd.). The original snow melting system equipment controls the energization or release state of the contactor coil by issuing a drive command through the monitoring module, and then controls the start of heating of the electric heating element by controlling the closing of the normally open contact of the contactor. Conversely, the electric heating element is controlled to stop heating by controlling the opening of the normally open contact of the contactor.

[0055] In the present invention, in a specific implementation, the relays KA1 to KA8 are electrical components with mature prior art, for example, they may be electromagnetic relays of model 3RH6140-1AN20 produced by Siemens.

[0056] In specific implementation, relays KA1~KA8 are normally open relays.

[0057] It should be noted that in the present invention, there is no need to add a load to replace the electric heating element in the original snow melting system equipment. The test device of the present invention is mainly used to test the driving function, acquisition function, and communication function of the monitoring module. If the driving function is normal, then the electric heating element of the original snow melting system equipment can be powered, start heating or stop heating, and in the subsequent testing phase, further technical research and development can be carried out to design joint debugging and testing with load.

[0058] In a specific implementation, the test device of the switch snow melting system equipment monitoring module also includes:

[0059] Indicator light HL1;

[0060] The two ends of the indicator light HL1 are connected to the wiring terminal 1D-4 and the wiring terminal 1D-5 respectively.

[0061] It should be noted that the indicator light HL1 is a power indicator light in the test device provided by the utility model, which is used to light up after the circuit breaker QF is closed, thereby reminding the operator that the test device has been connected to a 220V AC power supply AC, thereby ensuring power safety.

[0062] In specific implementation, the wiring terminals 1D-4, 1D-5 and 1D-3 are connected to the wiring terminals 1D-7, 1D-8 and 1D-9 respectively;

[0063] It should be noted that the wiring terminals 1D-7, 1D-8 and 1D-9 are power distribution terminals. When the circuit breaker QF is closed, the wiring terminals 1D-4, 1D-5 and 1D-3 are energized, and the wiring terminals 1D-7, 1D-8 and 1D-9 are also energized.

[0064] The connection terminal 1D-7 is connected to the live wire power port L of the industrial computer 100;

[0065] The terminal block 1D-8 is connected to the neutral power port N of the industrial computer 100;

[0066] The wiring terminal 1D-9 is connected to the ground port GND of the industrial computer 100;

[0067] In a specific implementation, the test device of the switch snow melting system equipment monitoring module further includes: a display 400;

[0068] The connection terminal 1D-7 is connected to the live wire power port L of the display 400;

[0069] The connection terminal 1D-8 is connected to the neutral power supply port N of the display 400;

[0070] The connection terminal 1D-9 is connected to the ground terminal GND of the display 400;

[0071] The video signal output terminal of the industrial computer 100 is connected to the video signal input terminal of the display 400 through a video connection line (such as a VGA line).

[0072] It should be noted that, for the utility model, when the circuit breaker QF is closed and the connection terminals 1D-7, 1D-8, and 1D-9 are energized, a 220V AC power supply can be provided to the industrial computer 100 and the display 400, so that the industrial computer 100 enters a normal working state after being energized, and the display 400 displays normally after being energized.

[0073] In specific implementation, the three-phase current acquisition ports IA, IB and IC on the monitoring module 300 are respectively connected to the secondary side output terminals K of the current transformers BEA1, BEA2 and BEA3;

[0074] The three-phase current acquisition port GNDI on the monitoring module 300 is simultaneously connected to the secondary side output terminals I of the current transformers BEA1, BEA2 and BEA3.

[0075] Furthermore, the connecting wire of the terminal 1D-4 is connected to the terminal 1D-7 after passing through the current transformers BEA1, BEA2 and BEA3 (ie, passing through the detection inner hole of the current sensor, ie, the primary side).

[0076] It should be noted that the connecting wire of the terminal 1D-4 passes through the detection inner holes of the current transformers BEA1, BEA2 and BEA3 in sequence, and then connects to the terminal 1D-7. The current transformer can sense the current information in the circuit through the principle of electromagnetic induction and transmit the current information to the monitoring module.

[0077] In specific implementation, the current transformers BEA1~BEA3 are mature electrical components in the prior art, for example, they can be current transformers of model TA1626-2 produced by Beijing Chuang Sifang Electronics Group Co., Ltd. In the utility model, they are used to sense the working current in the power supply circuit (specifically the live wire L).

[0078] It should be noted that, in the present utility model, current transformers BEA1~BEA3 are used to sense the working current in the power supply circuit (specifically the live wire L), and are components of the original snow melting system equipment. The difference in usage is that the original snow melting system equipment adopts a three-phase power supply method: the three live wires L1, L2, and L3 respectively pass through the current transformers BEA1~BEA3, and respectively sense the working currents in the three power supply circuits. The test device of the present utility model collects the working current in the same power supply circuit to prove that the three current collection channels of the monitoring module are intact.

[0079] In specific implementation, the three-phase voltage acquisition ports VA, VB and VC on the monitoring module 300 are respectively connected to the three-phase voltage output ports A1, B1 and C1 of the three-phase voltage transformer BEV;

[0080] The three-phase voltage acquisition port GNDV on the monitoring module 300 is connected to the three-phase voltage output port C2 of the three-phase voltage transformer BEV;

[0081] The three-phase voltage input ports A, B and C (i.e., the A-phase port, the B-phase port and the C-phase port) of the three-phase voltage transformer BEV are connected to the terminal 1D-4 after being converged and intersected;

[0082] The three-phase voltage input port N of the three-phase voltage transformer BEV is connected to the wiring terminal 1D-5.

[0083] It should be noted that, under normal use, the monitoring module 300 is installed in an electrical control cabinet, which adopts a three-phase five-wire power supply system. The monitoring module 300 needs to collect the three-phase input current and three-phase input voltage at the inlet of the electrical control cabinet.

[0084] In the present utility model, in specific implementation, the rail temperature transmitter ports 5V, GND, and DA on the monitoring module 300 are respectively connected to the temperature data output ports OUT, GND, and I / O on the rail temperature transmitter TF;

[0085] The temperature data input ports TA, TB and GND on the rail temperature transmitter TF are connected to the temperature data output ports TA, TB and GND on the rail temperature sensor BT respectively.

[0086] It should be noted that the rail temperature sensor BT is used to transmit the collected temperature data to the temperature data input port of the rail temperature transmitter TF, and then perform data conversion through the rail temperature transmitter TF. The rail temperature transmitter TF then transmits the converted temperature data to the rail temperature transmitter port on the monitoring module 300, and then transmits it from the CAN bus port on the monitoring module 300 to the CAN bus port on the communication module 200, and then transmits it from the RS232 port of the communication module 200 to the RS232 serial port on the industrial computer, and then displays it on the display 400 (specifically, it can be displayed on the operating interface of the turnout snow melting station control terminal software), and serves as one of the trigger conditions for the monitoring module to drive the suction command and the drive the drop command.

[0087] In the present invention, in specific implementation, the switch quantity acquisition ports IN1 and IN2 of the monitoring module 300 are respectively connected to the connection terminals 33 and 43 of the rotary switch SF1;

[0088] In specific implementation, the switch quantity acquisition port IN3 of the monitoring module 300 is connected to the connection terminal 2 of the toggle switch SF2;

[0089] The connection terminals 34 and 44 of the rotary switch SF1 and the connection terminal 1 of the toggle switch SF2 are connected to the power output port 24V of the monitoring module 300 after being converged and intersected;

[0090] It should be noted that, for the present invention, the switch quantity acquisition ports IN1 and IN2 of the monitoring module 300 input the working mode information, which is a switch quantity. The test device of the present invention adopts a rotary switch SF1 as a working mode conversion switch. When the rotary switch SF1 is placed in the "automatic" position, its terminal 33 is closed with the terminal 34, and the terminal 43 is disconnected with the terminal 44, thereby transmitting the automatic working mode information to the switch quantity acquisition port of the monitoring module 300;

[0091] When the rotary switch SF1 is placed in the "locked" position, the two sets of contacts, terminal 33 and terminal 34, terminal 43 and terminal 44, are disconnected, and the lock working mode information is transmitted to the switch quantity acquisition port of the monitoring module 300;

[0092] In addition, when the rotary switch SF1 is placed in the "manual" position, its terminal 33 is disconnected from the terminal 34, and the terminal 43 is closed from the terminal 44, and the manual working mode information is transmitted to the switch quantity acquisition port of the monitoring module 300;

[0093] Therefore, after the switch quantity acquisition port of the monitoring module 300 obtains the corresponding working mode information (such as automatic working mode information, locking working mode information or manual working mode information), it is transmitted to the CAN bus port of the communication module 200 through the CAN bus port of the monitoring module 300, and then transmitted to the RS232 serial port of the industrial computer 100 through the RS232 port of the communication module 200, and then displayed on the display 400 (specifically, it can be displayed on the software operation interface of the turnout snow melting station control terminal).

[0094] It should also be noted that the switch quantity acquisition port IN3 of the monitoring module 300 inputs the door status information of the electrical control cabinet, which is a switch quantity. In order to reduce the volume of the test bench, simplify the circuit, and save costs, the test device of the utility model uses a button switch SF2 to replace (also can be called simulation) the door status information acquisition threshold switch on the existing electrical control cabinet, and the open and closed states of the button switch SF2 represent the open and closed states of the electrical control cabinet door.

[0095] It should be noted that in the present utility model, the rotary switch SF1 is used to select the working mode of the equipment (specifically automatic mode, locking mode or manual mode), and at the same time feeds back the working mode information on the software operation interface of the turnout snow melting station control terminal on the display, and is an element of the original snow melting system equipment.

[0096] In a specific implementation, the rotary switch SF1 is an electrical component with a mature prior art, for example, it can be a rotary switch of model LAY50-22D-40XS produced by Jiangsu Shuangke Electric Co., Ltd.

[0097] It should be noted that, in the present invention, the rotary switch SF1 has three groups of normally open contacts, namely, the connection terminals 13 and 14 , the connection terminals 33 and 34 , and the connection terminals 43 and 44 .

[0098] In specific implementation, when the rotary switch SF1 (e.g., the rotary switch model LAY50-22D-40XS produced by Jiangsu Shuangke Electric Co., Ltd.) is placed on the left side, the normally open contacts 33 and 34 are closed, and the normally open contacts 43 and 44 are disconnected, and the automatic working mode is entered. At the same time, the normally open contacts 13 and 14 are closed, and the AC220V live wire L is introduced to the drive input end of the monitoring module 300.

[0099] When the rotary switch SF1 is placed in the middle position, the normally open contacts 33 and 34, and the normally open contacts 43 and 44 are both disconnected, and the operation mode is locked. When the rotary switch SF1 is placed in the right position, the normally open contacts 33 and 34 are disconnected, and the normally open contacts 43 and 44 are closed, and the operation mode is manual.

[0100] In the present invention, the toggle switch SF2 is an electrical component with mature prior art, for example, it can be a toggle switch of model T-21BS produced by Highly Electric Co., Ltd. of Taiwan, China.

[0101] It should be noted that, in the present invention, the connection terminals 1 and 2 of the toggle switch SF2 are a set of normally open contacts. When the toggle switch SF2 is closed, the normally open contacts 1 and 2 are closed, and when the toggle switch SF2 is opened, the normally open contacts 1 and 2 are opened. The open and closed states of the toggle switch SF2 represent the open and closed states of the door of the electrical control cabinet of the original snow melting system equipment.

[0102] In the present invention, in specific implementation, the drive output port O1 and the power output port GND of the monitoring module 300 are further connected via an indicator light HL2.

[0103] It should be noted that the indicator light HL2 is the working mode indicator light. When the rotary switch SF1 is in the "automatic" position, the working mode indicator light HL2 is always on; when the rotary switch SF1 is in the "locked" position, the working mode indicator light HL2 is off; when the rotary switch SF1 is in the "manual" position, the working mode indicator light HL2 flashes.

[0104] In the present utility model, in a specific implementation, the test device further includes: a mouse and a keyboard;

[0105] The USB connection cable of the mouse and the USB connection cable of the keyboard are respectively connected to a USB port on the industrial computer 100 for communication.

[0106] In the utility model, in specific implementation, the turnout snow melting system equipment is specifically the RD1 type electric heating turnout snow melting system equipment produced by China Railway Signal & Communication Group Co., Ltd.

[0107] In the present invention, in specific implementation, the monitoring module 300 that needs to be tested is the original monitoring module of the existing electric heating turnout snow melting system equipment, specifically the monitoring module installed in the electrical control cabinet of the RD1 type electric heating turnout snow melting system equipment.

[0108] In the present utility model, in specific implementation, the monitoring module 300, the communication module 200, the three-phase voltage transformer BEV, the rail temperature transmitter TF and the rail temperature sensor BT are all modules with mature existing technologies;

[0109] The monitoring module 300 is preferably a monitoring module of model JX4002.03L.00-2 produced by Tianjin Railway Signal Co., Ltd. The monitoring module 300 is used to receive the working mode information uploaded by the rotary switch SF1 and the cabinet door status information uploaded by the button switch SF2, and then transmit it to the CAN bus port of the communication module 200 through the CAN bus port on it, and then transmit it to the RS232 serial port of the industrial computer 100 through the RS232 port of the communication module 200, and then display it on the display 400;

[0110] The communication module 200 is preferably a communication module of model JX4002.03K.00-2 produced by Tianjin Railway Signal Co., Ltd., which is used to receive the information uploaded by the monitoring module 300 and transmit it to the industrial computer 100 via the RS232 bus.

[0111] The three-phase voltage transformer BEV is preferably a three-phase voltage transformer of model JX4002.03E2.00-2 produced by Tianjin Railway Signal Co., Ltd., which is used to sense the working voltage in the power supply circuit (specifically the live wire L).

[0112] It should be noted that, in the present invention, the three-phase voltage transformer BEV is used to collect the working voltage of the power supply circuit and is a component of the original snow melting system equipment. The difference in usage is that the original snow melting system equipment adopts a three-phase power supply method to collect the working voltages in the three power supply circuits respectively, while the test device of the present invention collects the working voltage in the same power supply circuit, which proves that the three voltage collection channels of the monitoring module are intact.

[0113] Among them, the rail temperature transmitter TF is preferably a rail temperature transmitter model JX4002.03N.00-2 produced by Tianjin Railway Signal Co., Ltd., which is used to convert the temperature data collected by the rail temperature sensor BT, and then transmit the converted temperature data to the rail temperature transmitter port on the monitoring module 300, and then transmit it to the CAN bus port on the communication module 200 from the CAN bus port on the monitoring module 300.

[0114] Among them, the rail temperature sensor BT is preferably a rail temperature sensor (i.e., temperature sensor) of model JX4002.06.00 produced by Tianjin Railway Signal Co., Ltd., which is used to collect temperature data located outside, for example, the temperature of the surface of the external railway track (such as steel rail).

[0115] It should be noted that in the present invention, the rail temperature sensor BT is used to collect the test environment temperature, and the collected temperature data is converted and uploaded to the monitoring module through the rail temperature transmitter TF. It is a component of the original snow melting system equipment and is used to collect the rail temperature in the original snow melting system.

[0116] It should be noted that, in the present invention, the industrial computer 100, relying on the turnout snow melting station control terminal software installed thereon, can observe whether the data collected by the tested monitoring module is correct and whether the driving command is issued normally.

[0117] It should be noted that the turnout snow-melting station control terminal software is an existing software program, and specifically the snow-melting software V1.0.0 developed by Beijing Railway Communication Signal Research and Design Institute Group Co., Ltd. can be used.

[0118] In the utility model, in terms of specific implementation, the turnout snow-melting station control terminal software running on the display is a mature software program that has been put into use in the prior art. For example, the turnout snow-melting station control terminal software V1.0.0 developed by Beijing Railway Communication Signal Research and Design Institute Group Co., Ltd. can be used. After the software is installed on the industrial computer 100, through the display 400 connected to the industrial computer 100, it is possible to observe whether the collected data of the tested monitoring module 300 is correct and whether the drive command is issued normally, thereby verifying whether the drive function, collection function, and communication function of the monitoring module 300 are normal.

[0119] It should be noted that in the present utility model, the monitoring module 300 in the original snow melting system equipment (such as the RD1 type electric heating turnout snow melting system equipment) plays the following driving functions: first, it is used to drive the contactor coil to attract or release, and then control whether the electric heating element is heated by changing the normally open contact of the contactor; second, it is used to drive the working mode indicator light HL2 to light up or flash. In the automatic working mode, the working mode indicator light HL2 is always on; in the locked working mode, the working mode indicator light HL2 is off; in the manual working mode, the working mode indicator light HL2 flashes.

[0120] It should be noted that in the present utility model, the monitoring module 300 in the original snow melting system equipment (such as the RD1 type electric heating turnout snow melting system equipment) performs the following collection functions: used to collect data such as three-phase working voltage (three-phase voltage transformer BEV), three-phase working current (current transformers BEA1~BEA3), rail temperature (rail temperature sensor BT), as well as working mode (rotary switch SF1), cabinet door status (threshold switch) and other information.

[0121] It should be noted that in the present utility model, the collection functions of the monitoring module 300 in the original snow melting system equipment (such as the RD1 type electric heating turnout snow melting system equipment) include: communicating with the communication module, uploading the collected three-phase working voltage, three-phase working current, rail temperature and other data, working mode, cabinet door status and other information to the industrial computer, and then displaying it on the operating interface of the turnout snow melting station control terminal software on the display; or sending the automatically or manually issued drive commands to the monitoring module, thereby driving the contactor coil to be attracted or released.

[0122] In order to more clearly understand the technical solution of the present invention, the technical solution of the present invention is explained in conjunction with a specific embodiment below, that is, specifically: the testing process of the driving function, acquisition function and communication function of the monitoring module by the testing device of the present invention is as follows.

[0123] 1. Preliminary preparation operations.

[0124] Connect the monitoring module to be tested to the test device of the utility model through the plug-in terminal, then connect the 220V AC power supply through the wiring terminals 1D-1 and 1D-2, close the circuit breaker QF, then the power indicator HL1 in the test device of the utility model lights up, the display 400 can display normally, and the industrial computer 100, the communication module 200, the monitoring module 300, and the rail temperature transmitter TF can work normally after power is supplied. Start the industrial computer 100 and open the existing turnout snow melting station control terminal software installed on it.

[0125] 2. Test the driving function, acquisition function and communication function of the monitoring module:

[0126] 1. Communication function test, as follows:

[0127] (1) After the monitoring module 300 and the communication module 200 are powered on and work normally, the "RUN" indicator light on the monitoring module 300 flashes, the fault indicator light on the monitoring module 300 goes out, the "+5V" indicator light on the communication module 200 is always on, and the "RUN" indicator light on the communication module 200 flashes.

[0128] After the communication module 200 establishes communication with the industrial computer 100, check the "communication" status display window on the display interface of the turnout snow melting station control terminal software. If the communication status is displayed as "normal", the "COM2" and "CAN" indicators of the communication module flash, and the "CAN" indicator of the monitoring module flashes, indicating that the communication function of the monitoring module is normal. Otherwise, the communication status displayed in the communication status display window is "fault", indicating that the communication function of the monitoring module is abnormal (that is, there is a problem).

[0129] 2. Test the acquisition function and driving function, as follows:

[0130] When the driving function and acquisition function of the monitoring module are normal, the following conditions must be met at the same time:

[0131] (1) Check the input voltage display windows of "A phase voltage", "B phase voltage" and "C phase voltage" on the display interface of the turnout snow melting station control terminal software, and they should all display consistent input voltage data;

[0132] (2) Check the input current display windows of "A phase current", "B phase current" and "C phase current" on the display interface of the turnout snow melting station control terminal software, and they should all display consistent input current data;

[0133] (3) Check the "track temperature" display window on the display interface of the turnout snow melting station control terminal software. This window can display: the ambient temperature of the current test environment, that is, the temperature data collected by the rail temperature sensor;

[0134] (4) Set the button switch SF2 to the ON position and check the "cabinet door status" display window on the display interface of the turnout snow melting station control terminal software. The window can display the cabinet door status of "cabinet door open";

[0135] (5) Set the button switch SF2 to the OFF position and check the "cabinet door status" display window on the display interface of the turnout snow melting station control terminal software. The window can display the cabinet door status of "cabinet door closed".

[0136] (6) Set the rotary switch SF1 to the "automatic" position, the working mode indicator HL2 is always on, and check the "working mode" display window of the turnout snow melting station control terminal software. The window can display the "automatic" working mode;

[0137] (7) Change the "starting temperature" parameter on the display interface of the turnout snow melting station control terminal software to above the "track temperature" (i.e., let the starting temperature be greater than the track temperature). The monitoring module automatically issues a drive pickup command, and it can be seen that relays KA1, KA2, KA3, KA4, KA5, KA6, KA7, and KA8 are energized and picked up in sequence;

[0138] (8) Change the "stop temperature" parameter on the display interface of the turnout snow melting station control terminal software to below the "track temperature" (that is, make the stop temperature lower than the track temperature collected in real time by the track temperature sensor BT). The monitoring module automatically sends a drive drop command, and it can be seen that relays KA1, KA2, KA3, KA4, KA5, KA6, KA7, and KA8 lose power and drop in sequence.

[0139] (9) Place the rotary switch SF1 in the middle "locked" position, the working mode indicator HL2 goes out, and check the "working mode" display window on the display interface of the turnout snow melting station control terminal software. The window can display the "locked" working mode;

[0140] (10) Set the rotary switch SF1 to the "manual" position, the working mode indicator HL2 flashes, and check the "working mode" display window of the turnout snow melting station control terminal software. The window can display the "manual" working mode.

[0141] When the above conditions (1) to (10) are met at the same time, it means that the driving function and the acquisition function of the tested monitoring module are both functioning normally. Otherwise, they are not functioning normally and there is an abnormality.

[0142] For the utility model, through the above-mentioned testing steps, it can be determined whether the driving function, acquisition function and communication function of the monitoring module are normal. When the driving function, acquisition function and communication function of the monitoring module are all normal, it means that the product test of the monitoring module is qualified.

[0143] In summary, compared with the prior art, the utility model provides a testing device for a monitoring module of a turnout snow melting system equipment. The device is scientifically designed and can reliably test the monitoring module on the electric heating turnout snow melting system equipment (such as the RD1 electric heating turnout snow melting system equipment), thereby ensuring the efficiency of the test, thereby facilitating further meeting the needs of joint debugging and testing of the electric heating turnout snow melting system equipment, and has great production practice significance.

[0144] By applying the utility model, the driving function, collection function, communication function and other functions of the monitoring module on the electric heating turnout snow melting system equipment (such as the RD1 type electric heating turnout snow melting system equipment) can be effectively tested, thereby improving the test efficiency and ensuring the test effect.

[0145] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A testing device for a monitoring module of a turnout snow melting system, characterized in that: include: An alternating current power source AC, an industrial computer (100), a communication module (200), current transformers BEA1-BEA3, a three-phase voltage transformer BEV, a rail temperature transmitter TF and a rail temperature sensor BT; The RS232 port on the industrial computer (100) is connected to the RS232 port on the communication module (200) via an RS232 serial port data line; The CAN bus port on the communication module (200) is connected to the CAN bus port on the monitoring module (300) to be tested in the turnout snow melting system equipment via the CAN bus; The drive input port and the switch quantity collection port on the monitoring module (300) are connected to the rotary switch SF1; The drive output ports Q1-Q8 on the monitoring module (300) are connected to the relays KA1-KA8 respectively; The three-phase current acquisition port on the monitoring module (300) is connected to the current transformers BEA1 to BEA3; The three-phase voltage collection port on the monitoring module (300) is connected to the three-phase voltage transformer BEV; The current transformers BEA1 to BEA3 and the three-phase voltage transformer BEV are respectively connected to the power supply circuit of the alternating current power source AC; The rail temperature transmitter port on the monitoring module (300) is connected to the temperature data output port of the rail temperature transmitter TF; The temperature data input port of the rail temperature transmitter TF is connected to the rail temperature sensor BT.

2. The test device for the switch snow melting system equipment monitoring module according to claim 1, characterized in that: The live wire L of the AC power source AC is connected to the input port 1 of the circuit breaker QF through the terminal 1D-1; The neutral line N of the AC power source AC is connected to the input port 3 of the circuit breaker QF through the terminal 1D-2; The ground wire G of the AC power supply is connected to the ground PE through the terminal 1D-3; Output port 2 and output port 4 of circuit breaker QF are connected to connection terminals 1D-4 and 1D-5, respectively.

3. The testing device for the monitoring module of the turnout snow melting system according to claim 2, characterized in that: The connection terminal 1D-4 is respectively connected to the live wire power port L of the industrial computer (100), the live wire power port 220VL of the communication module (200), the live wire power port 220VL of the monitoring module (300), and the live wire power port 220VL of the rail temperature transmitter TF; The connection terminal 1D-5 is respectively connected to the neutral power port N of the industrial computer (100), the neutral power port 220VN of the communication module (200), the neutral power port 220VN of the monitoring module (300), and the neutral power port 220VN of the rail temperature transmitter TF.

4. The testing device for the monitoring module of the turnout snow melting system according to claim 2, characterized in that: The drive input port on the monitoring module (300) is connected to the connection terminal 14 of the rotary switch SF1; Terminal 13 of rotary switch SF1 is connected to terminal 1D-4; The drive output ports Q1-Q8 of the monitoring module (300) are respectively connected to one end of the coils of the relays KA1-KA8; The other ends of the coils of relays KA1 to KA8 are connected to the terminal 1D-5 after the currents intersect.

5. The testing device for the monitoring module of the turnout snow melting system according to claim 2, characterized in that: The test device of the switch snow melting system equipment monitoring module also includes: an indicator light HL1; The two ends of the indicator light HL1 are connected to the wiring terminal 1D-4 and the wiring terminal 1D-5 respectively.

6. The test device for the monitoring module of the turnout snow melting system according to claim 2, characterized in that: Terminals 1D-4, 1D-5 and 1D-3 are connected to terminals 1D-7, 1D-8 and 1D-9 respectively; The connection terminal 1D-7 is connected to the live wire power port L of the industrial computer (100); The wiring terminal 1D-8 is connected to the neutral power supply port N of the industrial computer (100); The connection terminal 1D-9 is connected to the ground terminal GND of the industrial computer (100).

7. The testing device for the monitoring module of the turnout snow melting system according to claim 2, characterized in that: Also included: a display (400); The connection terminal 1D-7 is connected to the live wire power port L of the display (400); The connection terminal 1D-8 is connected to the neutral power supply port N of the display (400); The connection terminal 1D-9 is connected to the ground terminal GND of the display (400); The video signal output terminal of the industrial computer (100) is connected to the video signal input terminal of the display (400) via a video connection line.

8. The testing device for the monitoring module of the turnout snow melting system according to claim 2, characterized in that: The three-phase current acquisition ports IA, IB and IC on the monitoring module (300) are respectively connected to the secondary side output terminals K of the current transformers BEA1, BEA2 and BEA3; The three-phase current acquisition port GNDI on the monitoring module (300) is simultaneously connected to the secondary side output terminals I of the current transformers BEA1, BEA2 and BEA3; The connecting wire of the terminal 1D-4 is connected to the terminal 1D-7 after passing through the current transformers BEA1, BEA2 and BEA3; The three-phase voltage acquisition ports VA, VB and VC on the monitoring module (300) are respectively connected to the three-phase voltage output ports A1, B1 and C1 of the three-phase voltage transformer BEV; The three-phase voltage acquisition port GNDV on the monitoring module (300) is connected to the three-phase voltage output port C2 of the three-phase voltage transformer BEV; The three-phase voltage input ports A, B and C of the three-phase voltage transformer BEV are connected to the terminal 1D-4 after being converged and intersected; The three-phase voltage input port N of the three-phase voltage transformer BEV is connected to the wiring terminal 1D-5.

9. The testing device for the monitoring module of the turnout snow melting system according to any one of claims 2 to 8, characterized in that: The rail temperature transmitter ports 5V, GND, and DA on the monitoring module (300) are respectively connected to the temperature data output ports OUT, GND, and I / O on the rail temperature transmitter TF; The temperature data input ports TA, TB and GND on the rail temperature transmitter TF are connected to the temperature data output ports TA, TB and GND on the rail temperature sensor BT respectively.

10. The testing device for the monitoring module of the turnout snow melting system according to any one of claims 2 to 8, characterized in that: The switch quantity acquisition ports IN1 and IN2 of the monitoring module (300) are respectively connected to the connection terminal 33 and the connection terminal 43 of the rotary switch SF1; The switch quantity acquisition port IN3 of the monitoring module (300) is connected to the connection terminal 2 of the toggle switch SF2; The connection terminals 34 and 44 of the rotary switch SF1 and the connection terminal 1 of the toggle switch SF2 are connected to the power output port 24V of the monitoring module (300) after being converged and intersected.

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