A test device for turnout data collection integrated machine

Abstract

The present invention discloses a test device for an integrated turnout data acquisition machine, comprising n turnout data acquisition units and a communication processing unit integrated within the test device. Each turnout data acquisition unit collects the total power, three-phase current action curve, turnout start-up status, and the reverse position status of the reverse table. The communication processing unit receives information from the turnout data acquisition units, integrates it, and uploads it to a processing station via a network. The device collects the DCJ front node and the FCJ front node, replacing the 1DQJ to indicate turnout start. The device has four RS485 interfaces, providing scalability and supporting the access of other data acquisition systems.

Description

Technical Field

[0001] The present invention designs a switch monitoring device in rail transit, and specifically designs a switch data collection integrated machine testing device. Background Art

[0002] In recent years, with the rapid development of China's high-speed railways and urban rail transit, their core control equipment has also been widely used. Turnout monitoring is an important way to monitor the status of switch equipment, discover equipment hidden dangers, analyze equipment failures, and assist and guide on-site maintenance and fault handling.

[0003] The existing switch acquisition and testing device indicates switch start by acquiring the status of 1DQJ (first switch start relay), and the acquisition device and the communication processing device are placed separately, which makes transmission inconvenient.

[0004] Therefore, the present invention proposes a turnout data acquisition integrated machine testing device, which highly integrates the turnout data acquisition unit and the communication processing unit, and does not require the acquisition of 1DQJ status, effectively solving the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a highly integrated turnout acquisition unit and communication processing unit, and a turnout acquisition all-in-one machine testing device that does not require acquisition of 1DQJ status.

[0006] To achieve the above-mentioned objectives, the present invention proposes a test device for an integrated turnout data acquisition machine, comprising n turnout data acquisition units and a communication processing unit integrated in the test device, wherein each of the turnout data acquisition units is connected to the communication processing unit through wiring to exchange information; each of the turnout data acquisition units acquires and processes the turnout data to obtain the total power of the turnout to be collected, the action curve of the three-phase current, the turnout start-up status and the reverse position status of the reverse table; each of the turnout data acquisition units transmits the processed data results to the communication processing unit, and the communication processing unit integrates the received information and uploads it to the processing station through the network.

[0007] Among them, the test device is a board-type chassis with a modular design inside; the chassis is designed with a support guide rail inside; the n switch collection units are pluggable structures, which can be installed horizontally and pluggably inside the chassis along the guide rail, and the switch collection units are fixed in the chassis by screws; the communication processing unit is horizontally fixed in the chassis, and its bottom is supported by studs, and the communication processing unit is fixed in the chassis by screws.

[0008] The data processing of the turnout by the turnout acquisition unit includes isolated sampling of the collected quantity, A / D conversion, data processing and coded transmission of the results; the corresponding processing results are transmitted to the highly integrated communication processing unit via the RS485 bus.

[0009] The collection and processing of a certain turnout to be collected by each turnout collection unit includes the following:

[0010] The switch acquisition unit acquires the three-phase voltages Ua, Ub, Uc, the three-phase currents Ia, Ib, Ic, the total power Ptotal and other electrical parameters of the switch, thereby obtaining the total power of the switch and the action curves of the three phase currents;

[0011] The switch acquisition unit acquires the front node status of the DCJ (position control relay) and FCJ (counter position control relay) in the switch, and infers the switch start state based on the switch action logic when the switch state changes;

[0012] The switch acquisition unit acquires the status of DBJ and FBJ, and combines the acquired status of DCJ and FCJ to obtain the reverse position switch signal of the reverse table.

[0013] Among them, the switch action logic when the switch state changes is specifically as follows: when the switch is switched from the reverse position to the fixed position, the DCJ is sucked up, the switch starts to move and turns from the reverse position to the fixed position. When the switch is in place, the DCJ should fall down and the DBJ is sucked up at the same time; when the switch is switched from the fixed position to the reverse position, the FCJ is sucked up, the switch starts to move and turns from the fixed position to the reverse position. After the switch is in place, the FCJ falls down and the FBJ is sucked up at the same time; if there is no above-mentioned DBJ / FBJ state change or the above-mentioned DBJ / FBJ state changes exist at the same time, the switch is determined to be in the fault position.

[0014] Each of the turnout data collection units has an independent housing and pluggable terminals.

[0015] Each of the switch collection units further includes a plurality of indicator lights arranged on the outer shell of the switch collection unit, including a power indicator light, a chip operation status indicator light, and two communication transceiver status indicator lights.

[0016] Among them, under normal circumstances, the power indicator light is always on; the chip operation status indicator light flashes periodically; the two communication transceiver status indicator lights are the receiving indicator light and the sending indicator light respectively. When the communication is normal, the above-mentioned transceiver indicator lights both flash. When the two indicator lights are connected reversely, the receiving indicator light will be always on and the sending indicator light will be always off.

[0017] Among them, there are 2n+2 groups of terminals on the back panel of the device, namely n groups of terminals for collecting the three-phase voltage of the turnout, n groups of terminals for collecting the three-phase current and the reverse meter status of the turnout, 1 group of communication terminals, and 1 group of power terminals.

[0018] Among them, any one of the n groups of terminals for collecting the three-phase voltage of the turnout can be connected one-to-one with any turnout collection unit in the chassis.

[0019] Among them, each of the n groups of terminals used to collect turnout voltage is equipped with 6 interfaces, 3 of which are used to collect three-phase voltage, and the other 3 interfaces are spare interfaces.

[0020] Among them, any one of the n groups of terminals used for collecting the three-phase current and the fixed reverse meter status of the turnout can be connected one-to-one with any turnout collection unit in the chassis.

[0021] Among them, each group of terminals used to collect turnout current and fixed reverse meter status is equipped with 20 interfaces, of which 6 interfaces are used to collect three-phase current, 2 interfaces are used to collect the front and middle node status of DCJ, 2 interfaces are used to collect the front and middle node status of FCJ, 2 interfaces are used to collect the middle and rear node status of DBJ, 2 interfaces are used to collect the middle and rear node status of FBJ, and the other interfaces are spare interfaces.

[0022] Among them, the communication terminal has 8 interfaces, all of which are 485 communication ports, of which interfaces 1 and 2 are the 0th 485 ports, and so on; interfaces 1 and 2 are connected to each of the switch collection units for collecting switch data, and the addresses are configured as 1-n. When other collection units need to be connected externally, the address starts from n+1.

[0023] Among them, the power terminal has 6 interfaces, which are designed for 3 groups of +12V power supplies and can provide 2A current output, which can provide power for other external acquisition devices.

[0024] Among them, another set of isolated +12V power supplies is used to enter the switch quantity circuit of the turnout collection unit to collect the switch quantities of DCJ, FCJ, DBJ, and FBJ of all empty nodes.

[0025] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0026] 1) The device highly integrates a multi-way turnout acquisition unit and a communication processing unit;

[0027] 2) The device collects the nodes before DCJ and FCJ to replace 1DQJ to indicate turnout start;

[0028] 3) The device supports 4 RS485 interfaces, is expandable, and supports access to other collection devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a panel diagram of a test device for a turnout data acquisition machine according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the back panel of a turnout data acquisition integrated machine testing device according to an embodiment of the present invention;

[0031] Figure 3 Schematic diagram of the collection and wiring of turnout data in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the DBJ / FBJ switch value acquisition wiring according to an embodiment of the present invention;

[0033] Figure 5 Schematic diagram of the dimensions of a current acquisition transformer used in an embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the DCJ collection connection of the fully empty node in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiment of the present invention Figures 1 to 6 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0036] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0037] It should be noted that, in the present invention, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] A turnout acquisition integrated test device (TCAIO) is a 2U chassis with a board-card structure. Figure 1As shown, the chassis can be directly fixed to the cabinet by 4 screws (1), which is convenient for assembly and disassembly. The switch acquisition integrated machine test device adopts a modular design, including 4 highly integrated switch acquisition units and 1 communication processing unit installed inside the chassis. The chassis is designed with a guide rail, which supports the chassis and the internal structure of the chassis; the switch acquisition unit adopts a pluggable structure and is installed inside the chassis horizontally along the guide rail. Screws are used on the outside of the switch acquisition unit to further fix each switch acquisition unit in the chassis; the communication processing unit does not support plugging and is fixed horizontally inside the chassis. The bottom of the communication processing unit uses studs to support the communication processing unit, and screws are used to further fix the communication processing unit in the chassis.

[0039] This embodiment uses the TC6PK-M speed-up turnout current integrated acquisition sensor as the turnout acquisition unit installed in the TCAIO chassis. Each turnout acquisition unit has an independent housing and pluggable terminals, which is easy to replace.

[0040] The TCAIO uses a 12V power supply, and each of the switch acquisition units can independently collect data from one switch, so the device can support simultaneous data collection from four switches. Each of the switch acquisition units collects and processes data from one switch to obtain the switch's total power and the action curves of the three phase currents, the switch startup status, and the reverse position status of the reverse table. The processed results and control commands are then exchanged with the communication processing unit. The data processing of the switch acquisition unit includes isolated sampling of the collected data, A / D conversion, data processing, and encoded transmission of the results. The corresponding processing results and control commands are transmitted to the communication processing unit via the RS485 bus.

[0041] like Figure 3 The figure shows a wiring diagram of the turnout data acquisition in this embodiment. Specifically, the acquisition and processing of a turnout data by each turnout acquisition unit includes the following:

[0042] The switch acquisition unit collects data on the switch state changes with a period of 10ms. Since the change of the switch state is completed within 10s, the switch acquisition unit is set to collect data on the switch for each time for 10s. After the switch acquisition unit processes the above switch data, the three-phase voltage Ua, Ub, Uc, three-phase current Ia, Ib, Ic, and total power P of the switch can be obtained. 总 Equal electric quantity parameters are obtained to obtain the total power of the turnout and the action curves of the three phase currents;

[0043] The switch acquisition unit can also collect the previous node status of the DCJ (position control relay) and FCJ (counter position control relay) in the switch, and infer the switch start state in combination with the switch action logic when the switch state changes;

[0044] The switch acquisition unit can also collect the back node status of DBJ (position indicating manipulator) and FBJ (reverse position indicating manipulator), and combine the collected DCJ and FCJ status to obtain the reverse position switch signal of the reverse table (DBJ / FBJ), such as Figure 4 Shown is a schematic diagram of DBJ / FBJ switch value acquisition wiring according to an embodiment of the present invention.

[0045] The switch acquisition unit transmits the collected data and action curve to the communication processing unit via the RS485 bus. The communication processing unit integrates the received information and uploads it to the processing station through the network.

[0046] The specific logic of the switch operation when the switch state changes is as follows. When the switch is to be switched from the reverse position to the fixed position, the normal behavior is as follows: the DCJ is sucked up, the switch starts to move and turns from the reverse position to the fixed position. When the switch is in place, the DCJ should fall down and the DBJ is sucked up at the same time. When the switch is to be switched from the fixed position to the reverse position, the normal behavior is as follows: the FCJ is sucked up, the switch starts to move and turns from the fixed position to the reverse position. After the switch is in place, the FCJ falls down and the FBJ is sucked up at the same time. The above is the normal behavior when the switch state changes. If there is no DBJ / FBJ state change or the above DBJ / FBJ state changes exist at the same time, the switch is determined to be in the faulty position.

[0047] Each of the switch collection units also includes four indicator lights arranged on the outer shell of the switch collection unit, namely a 12V power indicator light, an operating status indicator light, and two RS485 bus communication transceiver status indicator lights, which are set to green; wherein, under normal circumstances, the 12V power indicator light is always on, and the operating status indicator light flashes periodically with a period of 1s; the two RS485 bus communication transceiver status indicator lights are respectively a receiving indicator light and a sending indicator light. When the RS485 bus communication is normal, the above-mentioned sending and receiving indicator lights both flash, and when the above-mentioned indicator lights are connected reversely, the receiving indicator light will be always on and the sending indicator light will be always off.

[0048] like Figure 2The backplane of the test device of this embodiment is shown, on which 10 groups of terminals, namely D1 to D10, are provided. Among them, terminals D1 to D4 are used to collect turnout voltages. Any group of terminals can be connected to any turnout collection unit in the chassis. Each group of terminals in D1 to D4 is equipped with 6 interfaces, and each group of terminals can collect a set of three-phase voltages Ua, Ub, and Uc of the turnout. When using terminals D1 to D4 to collect the voltage of one or more turnouts, one or more of terminals D1 to D4 are connected one-to-one to the turnout collection unit inside the chassis. The external connection relationship of each interface is shown in Table 1, where DCn represents the turnout to be collected. The definitions and collection content of interfaces 2, 4, and 6 are undetermined and can be flexibly adjusted according to actual needs. For example, when needed, other collections can be connected to set corresponding connections, or other interfaces with problems can be temporarily replaced.

[0049]

[0050] Table 1 Voltage acquisition terminals

[0051] Terminals D5 to D8 are each provided with 20 interfaces, wherein each set of terminals can be connected to any of the switch acquisition units to collect a set of three-phase currents Ia, Ib, Ic and a set of fixed-reverse meter states that are changed by the current transformer. In this embodiment, the current transformer is a 15A:15mA closed-end transformer with dimensions as shown below. Figure 5 Specifically, when collecting data on one or more turnouts, one or more of the terminals D5 to D8 are connected one-to-one to the turnout collection unit inside the chassis. The external connection relationship of each interface of each group of terminals is shown in Table 2. The definitions and collection contents of interfaces 7, 10, 13, 15, 17, and 19 are not yet determined and can be flexibly adjusted according to actual needs. For example, other collection interfaces can be connected when needed to set up corresponding connections, or other interfaces with problems can be temporarily replaced.

[0052]

[0053]

[0054] Table 2 Current and counter meter collection terminals

[0055] Terminal D9 is a communication terminal with eight interfaces, all of which are 485 communication ports. Interfaces 1 and 2 are 485 ports 0, and so on. Interfaces 1 and 2 are connected to the switch acquisition unit located within the device, and are assigned addresses 1-4. When other external acquisition units are required, the addresses start at 5. Table 3 shows the connection relationship for each interface on terminal D9, and also illustrates the interface connection relationship when an external temperature and humidity acquisition sensor is connected.

[0056]

[0057] Table 3 communication terminals

[0058] Terminal D10 is a power terminal with six interfaces, designed for three +12V power supplies. It can provide 2A of current output, powering other external data acquisition devices and facilitating on-site wiring. The specific connection relationship is shown in Table 4, which shows the interface connections when connecting an external temperature and humidity acquisition sensor.

[0059]

[0060]

[0061] Table 4 Power Terminals

[0062] Through the above design, the device can achieve the following conditions: turnout three-phase voltage Ua, Ub, Uc, three-phase current Ia, Ib, Ic and total power P 总 Collection of electrical parameters, DCJ and FCJ operating status, and DBJ and FBJ status.

[0063] Furthermore, in order to ensure that the device can correctly collect the status of DCJ, FCJ, DBJ and FBJ, it is necessary to collect the switch quantity of DCJ, FCJ, DBJ and FBJ of all empty nodes. Use another set of isolated +12V power supply and then enter the switch quantity circuit of the turnout collection unit for collection. The wiring diagram of DCJ is as follows: Figure 6 As shown (the wiring of FCJ, DBJ, and FBJ is the same).

[0064] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A turnout data acquisition integrated machine testing device, characterized in that: The test device includes n turnout acquisition units and communication processing units integrated into the test device. Each turnout acquisition unit is connected to the communication processing unit via wiring to exchange information. Each turnout acquisition unit acquires and processes turnout data to obtain the total power, three-phase current action curve, turnout start-up status, and reverse position status of the reverse table. Each turnout acquisition unit transmits the processed data results to the communication processing unit, which integrates the received information and uploads it to a processing station via a network. The data processing of the turnout by the turnout acquisition unit includes isolated sampling of the collected data, A / D conversion, data processing and coded transmission of the results; the corresponding processing results are transmitted to the highly integrated communication processing unit via the RS485 bus; The switch acquisition unit collects the status of the previous nodes of the DCJ and FCJ in the switch, and infers the switch start status based on the switch action logic when the switch status changes: When the turnout switches from reverse position to fixed position, the DCJ is pulled up, the switch machine starts to move, and switches from reverse position to fixed position. When the switch machine is in place, the DCJ should fall down, and the DBJ is pulled up at the same time. When the turnout switches from fixed position to reverse position, the FCJ is pulled up, the switch machine starts to move, and switches from fixed position to reverse position. When the switch machine is in place, the FCJ falls down, and the FBJ is pulled up at the same time. If there is no DBJ / FBJ state change or the above DBJ / FBJ state changes exist at the same time, the turnout is determined to be in the fault position. Among them, there are 2n+2 groups of terminals on the back panel of the test device, namely n groups of terminals for collecting the three-phase voltage of the turnout, n groups of terminals for collecting the three-phase current and the reverse meter status of the turnout, 1 group of communication terminals, and 1 group of power terminals.

2. The testing device according to claim 1, wherein: It is a board-type chassis with a modular design inside; the chassis is designed with support rails inside; The n turnout collection units are of pluggable structure and are installed inside the chassis horizontally along the guide rails and fixed inside the chassis by screws; The communication processing unit is fixed horizontally inside the chassis, with the bottom thereof supported by studs, and the communication processing unit is fixed inside the chassis by screws.

3. The testing device according to claim 1, wherein: The collection and processing of a certain turnout to be collected by each turnout collection unit includes the following: The switch acquisition unit acquires the three-phase voltage Ua, Ub, Uc, three-phase current Ia, Ib, Ic, and total power P of the switch to be acquired. 总 Equal electric quantity parameters are obtained to obtain the total power of the turnout and the action curves of the three phase currents; The switch acquisition unit acquires the status of DBJ and FBJ, and combines the acquired status of DCJ and FCJ to obtain the reverse position switch signal of the reverse table.

4. The testing device according to claim 1, wherein: Each of the switch collection units has an independent housing and pluggable terminals.

5. The testing device according to claim 4, wherein: Each of the switch collection units further comprises a plurality of indicator lights arranged on the outer shell of the switch collection unit, including a power indicator light, an operation status indicator light, and two communication transceiver status indicator lights.

6. The testing device according to claim 5, wherein: Under normal circumstances, the power indicator light is always on; the operating status indicator light flashes periodically; the two communication transceiver status indicator lights are the receiving indicator light and the sending indicator light respectively. When the communication is normal, the above-mentioned transceiver indicator lights both flash. If the two indicator lights are connected reversely, the receiving indicator light will be always on and the sending indicator light will be always off.

7. The testing device according to claim 6, wherein: Used to collect the three-phase voltage of the turnout Any set of terminals in the terminal block group can be connected one-to-one with any turnout data collection unit in the chassis.

8. The testing device according to claim 7, wherein: Each of the n groups of terminals used to collect turnout voltage is provided with 6 interfaces, 3 of which are used to collect three-phase voltage, and the other 3 are spare interfaces.

9. The testing device according to claim 6, wherein: Any one of the n groups of terminals for collecting the three-phase current of the turnout and the state of the fixed reverse meter can be connected one-to-one with any one of the turnout collection units in the chassis.

10. The testing device according to claim 9, wherein: Each group of terminals used to collect turnout current and turntable status is equipped with 20 interfaces, of which 6 interfaces are used to collect three-phase current, 2 interfaces are used to collect the front and middle node status of DCJ, 2 interfaces are used to collect the front and middle node status of FCJ, 2 interfaces are used to collect the middle and rear node status of DBJ, 2 interfaces are used to collect the middle and rear node status of FBJ, and the other interfaces are spare interfaces.

11. The testing device according to claim 6, wherein: The communication terminal has 8 interfaces, all of which are 485 communication interfaces, where interfaces 1 and 2 are the 0th 485 interfaces, and so on; interface 1 and 2 are connected to each of the switch collection units, and the addresses are configured as 1-n. When other collection units need to be connected externally, the addresses start from n+1.

12. The testing device according to claim 6, wherein: The power terminal has 6 interfaces and is designed for 3 groups of +12V power supplies. It can provide 2A current output and can provide power for other external acquisition devices.

13. The testing device according to claim 12, wherein: Use another set of isolated +12V power supplies to enter the switch quantity circuit of the turnout acquisition unit to collect the switch quantities of DCJ, FCJ, DBJ, and FBJ of all empty nodes.

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