Water pump alarm transmission device for rail transit

Abstract

The utility model provides a water pump alarm transmission device for rail transit. The water pump alarm transmission device comprises a processing module; the communication module is connected with the processing module and the water pump and used for transmitting alarm information to the processing module by the water pump; and the switch module is electrically connected with the processing module and the monitoring system and is used for changing the opening / closing state according to the instruction of the processing module so as to transmit alarm information to the monitoring system. According to the water pump alarm transmission device for the rail transit, the processing module is arranged between the water pump and the monitoring system of the rail transit, the alarm information is transmitted to the processing module through the communication module, and the processing module generates the action instruction corresponding to the switch module; and the switch module transmits the corresponding alarm information to the monitoring system in the corresponding opening / closing state, so that the defect that some early water pumps cannot timely and accurately transmit the alarm information to the monitoring system is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump communication, in particular to a water pump alarm transmission device for rail transportation. Background Art

[0002] Among the equipment in subway rail transit, high-pressure water pumps are necessary to cool down subway traction motors or batteries. Therefore, there are great requirements for the safety and reliability of water pumps. Once a failure occurs, it must be able to transmit the information promptly and accurately to save staff time for troubleshooting.

[0003] At present, the high-pressure water pump used can communicate with the subway monitoring system to achieve the above functional requirements. However, for some high-pressure water pumps put into use early, it is impossible to directly establish a communication connection with the monitoring system. This may be because there is no need for alarm transmission in the early stage of use, so there is no need to establish a communication connection. However, as the complexity of subway rail transit increases in the later period, it is necessary to improve the timeliness of such transmission. It is obvious that replacing the above water pumps will cost a huge cost, so a device that can transmit alarms in a timely and accurate manner between the water pump and the monitoring system is needed. Utility Model Content

[0004] The utility model provides a water pump alarm transmission device for rail transit, aiming to solve the problem that the water pump used in early rail transit cannot be directly connected to a monitoring system to transmit alarm information.

[0005] The present invention provides a water pump alarm transmission device for rail transit, comprising:

[0006] Processing module;

[0007] A communication module, connected to the processing module and the water pump, respectively, for the water pump to transmit alarm information to the processing module;

[0008] The switch module is electrically connected to the processing module and the monitoring system respectively, and is used to change the open / closed state according to the instruction of the processing module to transmit alarm information to the monitoring system.

[0009] Optionally, the processing module includes an information processing chip for processing alarm information and a storage module electrically connected to the information chip.

[0010] Optionally, the water pump alarm transmission device further includes a transformer module;

[0011] The output end of the transformer module is electrically connected to the processing module, the communication module and the switch module respectively.

[0012] Optionally, the transformer module includes a first buck chip and a first socket, a second socket and a communication socket electrically connected to the first buck chip;

[0013] The first socket and the second socket are respectively connected to the first input terminal and the second input terminal of the first buck chip; the first power supply pin of the communication socket is electrically connected to the positive output terminal of the first buck chip, and the second power supply pin of the communication socket is electrically connected to the negative output terminal of the first buck chip.

[0014] Optionally, the transformer module further includes a second step-down chip;

[0015] A first capacitor, a second capacitor, a third capacitor and a fourth capacitor are connected in parallel between the input end of the second buck chip and the ground line;

[0016] A fifth capacitor, a sixth capacitor and a seventh capacitor are connected in parallel between the output end of the second buck chip and the ground line;

[0017] The input end of the second buck chip is connected to the first pin of the first inductor, and the ground wire is connected to the second pin of the first inductor;

[0018] An eighth capacitor, a ninth capacitor and a voltage stabilizing diode are connected in parallel between the third pin and the fourth pin of the first inductor, and the voltage stabilizing diode is connected to the output voltage after the voltage is stepped down by the first step-down chip;

[0019] The third pin of the first inductor is connected to one end of the tenth capacitor, the other end of the tenth capacitor is connected to one end of the eleventh capacitor, and the other end of the eleventh capacitor is connected to the fourth pin of the first inductor.

[0020] Optionally, the transformer module further includes a third step-down chip;

[0021] The input end of the third buck chip is connected to the output voltage stepped down by the second buck chip, and an eighteenth capacitor, a nineteenth capacitor and a twentieth capacitor are connected in parallel between the output end and the ground line.

[0022] Optionally, the communication module includes a CAN transceiver chip;

[0023] The first pin of the CAN transceiver chip is connected to the output voltage of the third buck chip, the second pin is connected to the ground wire, the third pin is connected to one end of the first resistor and one end of the twelfth capacitor, the fifth pin is connected to one end of the second resistor, the ninth pin, the tenth pin, the fourteenth pin and the fifteenth pin are connected to the ground wire and one end of the fourteenth capacitor, the eleventh pin, the sixteenth pin and the other end of the fourteenth capacitor are connected to the output voltage of the second buck chip after voltage reduction; the twelfth pin is connected to the first pin of the second inductor; the thirteenth pin is connected to the second pin of the second inductor;

[0024] The other end of the first resistor is connected to the first terminal of the communication pin of the processing module, the other end of the second resistor is connected to one end of the thirteenth capacitor, the ground wire and the second terminal of the communication pin, and the other end of the thirteenth capacitor is connected to the ground wire;

[0025] The third pin of the second inductor is respectively connected to one end of the fifteenth capacitor, the second end of the transient suppression diode, the first end of the fourth resistor and the first pin of the third inductor; the fourth pin of the second inductor is respectively connected to one end of the sixteenth capacitor, the first end of the transient suppression diode, one end of the third resistor and the second pin of the third inductor;

[0026] The other end of the third resistor and the other end of the fourth resistor are connected to one end of the seventeenth capacitor;

[0027] The other end of the fifteenth capacitor, the other end of the sixteenth capacitor, the third end of the transient suppression diode, and the other end of the seventeenth capacitor are electrically connected to the ground line;

[0028] The third pin of the third inductor is connected to the fifth pin of the communication socket, and the fourth pin of the third inductor is connected to the sixth pin of the communication socket.

[0029] Optionally, the switch module includes a relay;

[0030] The relay is connected in parallel with the Schottky diode, a first end of the relay is connected to one end of a seventh resistor, an eighth resistor and a ninth resistor connected in parallel, and the other ends of the seventh resistor, the eighth resistor and the ninth resistor are connected to the output voltage after the first buck chip steps down;

[0031] The second end of the relay is connected to the collector of the first transistor, and the emitter of the first transistor is connected to the ground wire and one end of the sixth resistor;

[0032] The base of the first transistor is connected to the other end of the sixth resistor and one end of the fifth resistor, and the other end of the fifth resistor is connected to the processing module;

[0033] The output end of the relay is electrically connected to the monitoring system through the third socket row and the fourth socket row.

[0034] An embodiment of the utility model provides a water pump alarm transmission device for rail transit. A processing module is set between the water pump and the monitoring system of the rail transit, and the alarm information is transmitted to the processing module by using the communication module. The processing module generates an action instruction for the corresponding switch module, and the switch module transmits the corresponding alarm information to the monitoring system in the corresponding open / closed state, thereby solving the incompatibility of the communication protocol between some early water pumps and the monitoring system, and overcoming the deficiency that the monitoring system cannot transmit the alarm information in a timely and accurate manner in some scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1A schematic diagram of the structure of a water pump alarm transmission device for rail transit provided by an embodiment of the utility model;

[0036] Figure 2 A schematic diagram of the first part of a circuit of a transformer module in a water pump alarm transmission device for rail transit provided by an embodiment of the utility model;

[0037] Figure 3 A schematic diagram of the second part of the circuit of a transformer module in a water pump alarm transmission device for rail transit provided by an embodiment of the utility model;

[0038] Figure 4 A circuit schematic diagram of a communication submodule in a water pump alarm transmission device for rail transit provided by an embodiment of the utility model;

[0039] Figure 5 A circuit schematic diagram of a switch module in a water pump alarm transmission device for rail transit provided by an embodiment of the utility model;

[0040] Figure 6 A schematic diagram of a DSP chip and peripheral circuits in a water pump alarm transmission device for rail transit provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] At present, the track needs to use a high-pressure water pump to cool the subway traction motor or battery, and it is necessary to be able to communicate between the high-pressure water pump and the subway's monitoring system so that an alarm can be quickly issued when a problem occurs. However, for some water pumps put into use earlier, there is an incompatibility between the communication protocol and the monitoring system, so direct communication is not possible. Replacing the water pump obviously consumes more costs. Therefore, a device is needed that can realize timely and accurate alarm transmission between the water pump and the monitoring system.

[0043] Embodiment 1

[0044] In view of the above shortcomings, the utility model proposes a water pump alarm transmission device for rail transportation, such as Figure 1 As shown, including:

[0045] Processing module; including an information processing chip for processing alarm information, a storage module electrically connected to the information chip, the device used can be a functional device similar to a trigger, but considering the requirements of the required compatible communication protocol, the processing module can use a DSP chip, such as TMS320F28054FPNQ and peripheral circuits, such as Figure 6 As shown in the instructions for use of the reference chip, no further description is given here; and the processing module is configured with a storage module electrically connected to the DSP chip, such as E 2 ROM, and the DSP chip is also equipped with a performance test JTAG circuit.

[0046] The communication module is respectively connected to the processing module and the water pump, and is used for the water pump to transmit alarm information to the processing module; the water pump (high-pressure water pump) is equipped with a motor drive board, and in the actual working process it is the motor drive board, and for subway rail transit, each subway includes the above-mentioned water pump and electrode drive board structure, so in order to ensure the convenience of networking and expansion, the CAN bus communication method is preferably used.

[0047] It should be added here that the above-mentioned water pump alarm transmission device also includes a transformer module;

[0048] The output end of the transformer module is electrically connected to the processing module, the communication module and the switch module respectively.

[0049] The transformer module is connected to a high-voltage DC power supply, which can realize the function of stepping down and regulating the voltage. The voltages required by the above-mentioned water pump, processing module, communication module and switch module are not the same, so the transformer module used can adopt a step-by-step step-down method, or a step-by-step step-down method to output the corresponding power supply. For example, the power supply voltage required by the high-pressure water pump and the switch module is 24V, and the output voltage of the high-voltage DC power supply is 500V, so it needs to be stepped down once before output; then the 5V power supply required by the communication module needs to be stepped down again; then the 3.3V power supply required by the processing module needs to be stepped down again.

[0050] The switch module, including but not limited to a relay, is electrically connected to the processing module and the monitoring system, and is used to change the open / closed state according to the instructions of the processing module to transmit alarm information to the monitoring system. The working state of the switch module can be normally closed or normally open; the monitoring system can use an indicator light or a buzzer to locate the problem water pump. For example, when the switch module is normally closed, the indicator light of the monitoring system is always on. When the processing module drives the switch module to open, the indicator light of the monitoring system goes out to indicate the problem water pump.

[0051] An embodiment of the utility model provides a water pump alarm transmission device for rail transit. A processing module is set between the water pump and the monitoring system of the rail transit, and the alarm information is transmitted to the processing module by using the communication module. The processing module generates an action instruction for the corresponding switch module, and the switch module transmits the corresponding alarm information to the monitoring system in the corresponding open / closed state, thereby solving the problem that some early water pumps cannot transmit alarm information to the monitoring system in a timely and accurate manner.

[0052] Embodiment 2

[0053] The embodiment of the utility model is based on the embodiment 1. Figure 2 and Figure 3 As shown, it is further pointed out that:

[0054] The transformer module includes a first buck chip U1 (model PV15-27B24R3) and a first socket J1, a second socket J2 and a communication socket J3 electrically connected to the first buck chip U1;

[0055] The first socket J1 and the second socket J2 are respectively connected to the first input terminal -Vin and the second input terminal +Vin of the first buck chip U1; the first power supply pin VDD of the communication socket J3 is electrically connected to the positive output terminal +Vo of the first buck chip, and the second power supply pin GND of the communication socket J3 is electrically connected to the negative output terminal -Vo of the first buck chip; here, the output voltage of the high-voltage DC power supply of the first socket J1 and the second socket J2 is 500V, and the positive output terminal +Vo and the negative output terminal -Vo of the first buck chip U1 are VCC_H, that is, 24V.

[0056] In addition, the fifth pin CANH and the sixth pin CANL of the communication socket J3 are connected to the motor drive board of the water pump and are connected to the communication submodule.

[0057] The transformer module also includes a second step-down chip U2, model NCV1117DT50RKG; its function is to reduce 24V to 5V voltage for output.

[0058] A first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4 are connected in parallel between the input end of the second buck chip U2 and the ground line GND;

[0059] A fifth capacitor C5, a sixth capacitor C6 and a seventh capacitor C7 are connected in parallel between the output end of the second buck chip U2 and the ground line GND;

[0060] The input end of the second buck chip U2 is connected to the first pin of the first inductor L1, and the ground wire GND is connected to the second pin of the first inductor L1; after voltage reduction, the output voltage of the second buck chip U2 is 5V.

[0061] An eighth capacitor C8, a ninth capacitor C9 and a Zener diode D1 are connected in parallel between the third pin and the fourth pin of the first inductor L1; the Zener diode is connected to the output voltage VCC_H after being stepped down by the first buck chip U1, that is, a 24V DC voltage.

[0062] The third pin of the first inductor L1 is connected to one end of the tenth capacitor C10 , the other end of the tenth capacitor C10 is connected to one end of the eleventh capacitor C11 , and the other end of the eleventh capacitor C11 is connected to the fourth pin of the first inductor L1 .

[0063] In addition, the transformer module also includes a third step-down chip U3;

[0064] The input end of the third buck chip U3 is connected to the output voltage 5V after being stepped down by the second buck chip U2, and the eighteenth capacitor C18, the nineteenth capacitor C19 and the twentieth capacitor C20 are connected in parallel between the output end and the ground line GND, and the output voltage is 3.3V.

[0065] Further Figure 4 As shown, the communication module includes a CAN transceiver chip U4, the model of which may be TJA1052IT / 5;

[0066] The first pin of the CAN transceiver chip U4 is connected to the output voltage 3.3V power supply of the third buck chip U3, the second pin is connected to the ground line GND, the third pin is connected to one end of the first resistor R1 and one end of the twelfth capacitor C12, the fifth pin is connected to one end of the second resistor R2, the ninth pin, the tenth pin, the fourteenth pin and the fifteenth pin are connected to the ground line GND and one end of the fourteenth capacitor C14, the eleventh pin, the sixteenth pin and the other end of the fourteenth capacitor C14 are connected to the output voltage 5V of the second buck chip U2 after voltage reduction; the twelfth pin is connected to the first pin of the second inductor L2; the thirteenth pin is connected to the second pin of the second inductor L2;

[0067] The other end of the first resistor R1 is connected to the first terminal CANTXA of the communication pin of the processing module, and the other end of the second resistor R2 is connected to one end of the thirteenth capacitor C13, the ground wire GND and the second terminal CANRXA of the communication pin; the other end of the thirteenth capacitor C13 is connected to the ground wire GND;

[0068] The third pin of the second inductor L2 is respectively connected to one end of the fifteenth capacitor C15, the second end of the transient suppression diode D2, the first end of the fourth resistor R4, and the first pin of the third inductor L3; the fourth pin of the second inductor L2 is respectively connected to one end of the sixteenth capacitor C16, the first end of the transient suppression diode D2, one end of the third resistor R3, and the second pin of the third inductor L2;

[0069] The other end of the third resistor R3 and the other end of the fourth resistor R4 are connected to one end of the seventeenth capacitor C17;

[0070] The other end of the fifteenth capacitor C15, the other end of the sixteenth capacitor C16, the third end of the transient suppression diode D2, and the other end of the seventeenth capacitor C17 are electrically connected to the ground line GND;

[0071] The third pin of the third inductor L3 is connected to the fifth terminal of the communication socket J3, and the fourth pin of the third inductor L3 is connected to the sixth pin of the communication socket J3. Through such connection, the fault information of the water pump can be sent to the processing module in the form of CAN bus.

[0072] like Figure 5 As shown, the switch module used includes a relay K;

[0073] The relay K is connected in parallel with the Schottky diode D3, the first end of the relay K is connected to one end of the seventh resistor R7, the eighth resistor R8 and the ninth resistor R9 connected in parallel, and the other ends of the seventh resistor R7, the eighth resistor R8 and the ninth resistor R9 are connected to the output voltage 24V after the first buck chip steps down;

[0074] The second end of the relay K is connected to the collector of the first transistor Q1, and the emitter of the first transistor Q1 is connected to the ground line GND and one end of the sixth resistor R6;

[0075] The base of the first transistor Q1 is connected to the other end of the sixth resistor R6 and one end of the fifth resistor R5, and the other end of the fifth resistor R5 is connected to the GPIO10 of the processing module;

[0076] The output end of the relay is electrically connected to the monitoring system through the third socket J3 and the fourth socket J4. The processing module generates a mode for switching the sockets according to the fault information of the water pump. For example, when the water pump is working normally, the fourth socket J4 is in the on state, and when there is a fault, the fifth socket J5 is in the on state, so that the monitoring system warns of the fault information.

[0077] The specific circuit structure adopted in the embodiment of the present utility model is obtained on the basis of the aforementioned embodiment, has the same technical conception, and achieves the same technical effect, and will not be described in detail here.

[0078] Some directional words are defined in the present utility model. Unless otherwise specified, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used for ease of understanding and therefore do not constitute limitations on the protection scope of the present utility model.

[0079] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0080] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A water pump alarm transmission device for rail transit, characterized in that: include: Processing module; A communication module, connected to the processing module and the water pump, respectively, for the water pump to transmit alarm information to the processing module; The switch module is electrically connected to the processing module and the monitoring system respectively, and is used to change the open / closed state according to the instruction of the processing module to transmit the alarm information to the monitoring system.

2. The water pump alarm transmission device for rail transit according to claim 1, characterized in that: The processing module includes an information processing chip for processing the alarm information and a storage module electrically connected to the information processing chip.

3. The water pump alarm transmission device for rail transit according to claim 1, characterized in that: The water pump alarm transmission device also includes a transformer module; The output end of the transformer module is electrically connected to the processing module, the communication module and the switch module respectively.

4. The water pump alarm transmission device for rail transit according to claim 3, characterized in that: The transformer module includes a first step-down chip and a first socket strip, a second socket strip and a communication socket strip electrically connected to the first step-down chip; The first socket and the second socket are respectively connected to the first input end and the second input end of the first buck chip; the first power supply pin of the communication socket is electrically connected to the positive output end of the first buck chip, and the second power supply pin of the communication socket is electrically connected to the negative output end of the first buck chip.

5. The water pump alarm transmission device for rail transit according to claim 4, characterized in that: The transformer module also includes a second step-down chip; A first capacitor, a second capacitor, a third capacitor and a fourth capacitor are connected in parallel between the input end of the second buck chip and the ground line; A fifth capacitor, a sixth capacitor and a seventh capacitor are connected in parallel between the output end of the second buck chip and the ground line; The input end of the second buck chip is connected to the first pin of the first inductor, and the ground wire is connected to the second pin of the first inductor; An eighth capacitor, a ninth capacitor and a voltage stabilizing diode are connected in parallel between the third pin and the fourth pin of the first inductor, and the voltage stabilizing diode is connected to the output voltage after the first buck chip steps down; The third pin of the first inductor is connected to one end of the tenth capacitor, the other end of the tenth capacitor is connected to one end of the eleventh capacitor, and the other end of the eleventh capacitor is connected to the fourth pin of the first inductor.

6. The water pump alarm transmission device for rail transit according to claim 5, characterized in that: The transformer module also includes a third step-down chip; The input end of the third buck chip is connected to the output voltage of the second buck chip after being stepped down, and an eighteenth capacitor, a nineteenth capacitor and a twentieth capacitor are connected in parallel between the output end and the ground line.

7. The water pump alarm transmission device for rail transit according to claim 6, characterized in that: The communication module includes a CAN transceiver chip; The first pin of the CAN transceiver chip is connected to the output voltage of the third buck chip, the second pin is connected to the ground line, the third pin is connected to one end of the first resistor and one end of the twelfth capacitor, the fifth pin is connected to one end of the second resistor, the ninth pin, the tenth pin, the fourteenth pin and the fifteenth pin are connected to the ground line and one end of the fourteenth capacitor, the eleventh pin, the sixteenth pin and the other end of the fourteenth capacitor are connected to the output voltage of the second buck chip after voltage reduction; the twelfth pin is connected to the first pin of the second inductor; the thirteenth pin is connected to the second pin of the second inductor; The other end of the first resistor is connected to the first terminal of the communication pin of the processing module, the other end of the second resistor is connected to one end of the thirteenth capacitor, the ground wire and the second terminal of the communication pin, and the other end of the thirteenth capacitor is connected to the ground wire; The third pin of the second inductor is respectively connected to one end of the fifteenth capacitor, the second end of the transient suppression diode, the first end of the fourth resistor and the first pin of the third inductor; the fourth pin of the second inductor is respectively connected to one end of the sixteenth capacitor, the first end of the transient suppression diode, one end of the third resistor and the second pin of the third inductor; The other end of the third resistor and the other end of the fourth resistor are connected to one end of a seventeenth capacitor; The other end of the fifteenth capacitor, the other end of the sixteenth capacitor, the third end of the transient suppression diode, and the other end of the seventeenth capacitor are electrically connected to the ground line; The third pin of the third inductor is connected to the fifth pin of the communication socket, and the fourth pin of the third inductor is connected to the sixth pin of the communication socket.

8. The water pump alarm transmission device for rail transit according to claim 7, characterized in that: The switch module includes a relay; The relay is connected in parallel with the Schottky diode, a first end of the relay is connected to one end of a seventh resistor, an eighth resistor and a ninth resistor connected in parallel, and the other ends of the seventh resistor, the eighth resistor and the ninth resistor are connected to the output voltage after the first buck chip steps down; The second end of the relay is connected to the collector of the first transistor, and the emitter of the first transistor is connected to the ground wire and one end of the sixth resistor; The base of the first transistor is connected to the other end of the sixth resistor and one end of the fifth resistor, and the other end of the fifth resistor is connected to the processing module; The output end of the relay is electrically connected to the monitoring system through the fourth socket row and the fifth socket row.

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