Train operation control recording device

Abstract

The utility model relates to a train operation control recording device which comprises a lower computer and an upper computer, the lower computer comprises a CPU processor, an LKJ acquisition and control unit and a locomotive signal code sending unit; the train console is connected with the input end of the CPU processor through the four-channel A / D acquisition module and the 12-channel input acquisition module, and the output end of the CPU processor is connected with the LKJ host through the four-channel D / A output module and the PWM speed output module; the output end of the CPU processor is connected with the code sending coil through the FPGA controller, the D / A conversion module and the power amplifier output module; and the CPU processor is in bidirectional data connection with the upper computer through network communication. According to the train operation control recording device, through the design of the LKJ acquisition and control unit and the locomotive signal code sending unit, the data acquisition precision, the response processing speed and the emergency braking and pressure simulation processing efficiency are improved, and therefore the reliability of the device and the stability in complex operation are integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit signals, and particularly relates to a train operation control recording device. Background Art

[0002] The existing train operation control recording device mainly ensures the safety and reliability of train operation by collecting and recording various control signals and status information during the train operation process. However, in the training field, the existing simulation system has deficiencies in data collection and processing, specifically manifested as low data collection accuracy, slow response speed, and low system integration. In addition, when dealing with complex operations such as emergency braking and pressure simulation, the existing train operation control recording device has problems of low processing efficiency and poor reliability. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in data collection and processing existing in the existing LKJ system in the training field, as well as the problem of low efficiency in emergency braking and pressure simulation, and provide a train operation control recording device, which improves the data collection accuracy, response processing speed, and emergency braking and pressure simulation processing efficiency through the design of the LKJ acquisition and control unit and the locomotive signal coding unit, thereby overall improving the reliability of the device and the stability in complex operations.

[0004] This train operation control recording device includes a lower computer with input and output ends respectively connected to the train console and the LKJ host, and an upper computer for receiving the simulation operation information uploaded by the lower computer and sending the simulation speed data information to the lower computer. The lower computer and the upper computer are connected by bidirectional data through network communication. Among them, the lower computer includes a CPU processor, an LKJ acquisition and control unit, and a locomotive signal coding unit; the LKJ acquisition and control unit includes a 4-channel A / D acquisition module, a 12-channel input acquisition module, a 4-channel D / A output module, a PWM speed output module, an LKJ host, and a power supply module; the train console is connected to the input end of the CPU processor through the 4-channel A / D acquisition module and the 12-channel input acquisition module, and the output end of the CPU processor is connected to the LKJ host through the 4-channel D / A output module and the PWM speed output module; the locomotive signal coding unit includes an FPGA controller, a D / A conversion module, a power amplifier output module, a coding coil, a data storage module, and a power supply module; the output end of the CPU processor is connected to the coding coil through the FPGA controller, the D / A conversion module, and the power amplifier output module; the CPU processor is connected to the upper computer by bidirectional data through network communication.

[0005] Optimally, the LKJ acquisition and control unit further includes a stepping motor speed acquisition mechanism, and the stepping motor speed acquisition mechanism includes a stepping motor and a speed sensor.

[0006] Optimized, it also includes a ground signal simulation mechanism, and the locomotive signal coding unit is communicatively connected to the ground signal simulation mechanism through a coding coil.

[0007] Specifically, the CPU processor adopts a minimum function circuit of an STM32F407VET6 single-chip microcomputer; the FPGA controller adopts an XC6SLX9-2TQG144 CPLD (Complex Programmable Logic Device).

[0008] A train operation control recording device of the present utility model overcomes the deficiencies in data acquisition and processing and the low efficiency of emergency braking and pressure simulation existing in the existing LKJ system in the training field. Its beneficial effects are as follows: By designing the LKJ acquisition and control unit and the locomotive signal coding unit, the data acquisition accuracy, response processing speed, and the processing efficiency of emergency braking and pressure simulation are improved, thereby overall enhancing the reliability of the device and the stability in complex operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following further describes a train operation control recording device of the present utility model with reference to the drawings:

[0010] Figure 1 is the overall logical structure and connection principle block diagram of this train operation control recording device;

[0011] Figure 2 is the logical structure and connection principle block diagram of the LKJ acquisition and control unit of this train operation control recording device;

[0012] Figure 3 is the logical structure and connection principle block diagram of the locomotive signal coding unit of this train operation control recording device.

[0013] In the figure:

[0014] 1 - lower computer, 2 - upper computer;

[0015] 11 - CPU processor, 12 - LKJ acquisition and control unit, 13 - locomotive signal coding unit;

[0016] 121 - 4-channel A / D acquisition module, 122 - 12-channel input acquisition module, 123 - 4-channel D / A output module, 124 - PWM speed output module, 125 - LKJ host, 126 - stepping motor, 127 - speed sensor; 131 - FPGA controller, 132 - D / A conversion module, 133 - power amplifier output module, 134 - coding coil, 135 - ground signal simulation mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0019] The following uses specific embodiments to further describe the technical solution of the present utility model, but the protection scope of the present utility model is not limited to the following embodiments.

[0020] Embodiment 1: As Figures 1 to 3As shown in the figure, the train operation control recording device includes a lower computer 1 with its input and output ends respectively connected to the train console and the LKJ host, and an upper computer 2 for receiving the simulation operation information uploaded by the lower computer 1 and sending the simulation speed data information to the lower computer 1. The lower computer 1 and the upper computer 2 are connected through network communication for bidirectional data transmission. The lower computer is responsible for collecting various real operation information in the train console and uploading the data to the upper computer. At the same time, the lower computer receives the simulation speed data information sent by the upper computer and converts it into analog quantity data to be transmitted to the LKJ host. Among them, the lower computer 1 includes a CPU processor 11, an LKJ acquisition and control unit 12, and a locomotive signal coding unit 13. The LKJ acquisition and control unit 12 includes a 4-channel A / D acquisition module 121, a 12-channel input acquisition module 122, a 4-channel D / A output module 123, a PWM speed output module 124, an LKJ host 125, and a power supply module. The train console is connected to the input end of the CPU processor 11 through the 4-channel A / D acquisition module 121 and the 12-channel input acquisition module 122. The output end of the CPU processor 11 is connected to the LKJ host 125 through the 4-channel D / A output module 123 and the PWM speed output module 124. Through the design of the data acquisition module, 4-channel A / D acquisition is used to respectively acquire the control signals of the traction handle, the automatic brake handle, and the emergency brake handle. The change-over switch and the LKJ pipe pressure output state are acquired through 12-channel input acquisition, with the common node being GND. After analog-to-digital conversion, the data is transmitted to the CPU for processing. 4-channel D / A output is used to convert the pressure value into a voltage value and transmit it to the pressure input port of the LKJ, improving the data acquisition accuracy while ensuring the accuracy of the recorded data. The locomotive signal coding unit 13 includes an FPGA controller 131, a D / A conversion module 132, a power amplifier output module 133, a coding coil 134, as well as a data storage module and a power supply module. The output end of the CPU processor 11 is connected to the coding coil 134 through the FPGA controller 131, the D / A conversion module 132, and the power amplifier output module 133. The locomotive signal coding unit communicates with the upper computer through network communication. The CPU receives the carrier frequency and low-frequency information sent by the upper computer, analyzes and processes it, controls the FPGA to generate an FSK modulation signal and output it. After D / A conversion, the digital signal modulated by FSK is converted into an analog signal, which is power-amplified and then transmitted to the coding coil to send a frequency shift control signal to the locomotive coding module of the on-vehicle equipment to enable it to perform frequency shift coding, improving the system response speed and meeting the requirements of real-time control. The CPU processor 11 is connected to the upper computer 2 through network communication for bidirectional data transmission, and uses a network interface for communication to receive the control information of the upper computer and upload the operation status information of the LKJ.

[0021] Embodiment 2: As Figure 1As shown in the figure, the LKJ acquisition and control unit 12 of the train operation control recording device further includes a stepping motor speed acquisition mechanism, and the stepping motor speed acquisition mechanism includes a stepping motor 126 and a speed sensor 127. In addition to the method in Embodiment 1 where the PWM speed output can be directly connected to the LKJ to provide it with speed signals, in this embodiment, the CPU processor outputs a PWM stepping motor drive signal, which is executed by the stepping motor driver to control the operation of the stepping motor, and the speed sensor collects the speed and rotational speed to provide speed signals for the LKJ. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0022] Embodiment 3: As Figure 1 As shown in the figure, the train operation control recording device further includes a ground signal simulation mechanism 135, and the locomotive signal coding unit 13 is communicatively connected to the ground signal simulation mechanism 135 through a coding coil 134. The ground signal simulation mechanism includes a general locomotive signal coder and a locomotive signal loop. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0023] Embodiment 4: As Figure 1 As shown in the figure, the CPU processor 11 of the train operation control recording device adopts a minimum function circuit of a single-chip microcomputer such as STM32F407VET6; the FPGA controller 131 adopts an XC6SLX9-2TQG144 CPLD. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0024] During operation: The CPU and FPGA perform data processing and signal generation. When the lower computer can collect the information of a trainee driving a simulated vehicle, the lower computer can collect the simulation operation information such as manual braking, emergency braking, the braking switch quantity acquisition of the LKJ, and the blowdown button when the trainee drives the simulated vehicle and transmit it to the upper computer; at the same time, the lower computer receives the simulated speed data information sent by the upper computer, converts the received pressure value into analog data voltage information recognizable by the LKJ host and transmits it to the LKJ host; the lower computer for collecting simulated pressure data should support simulating 4-channel pressure data information. In addition, the lower computer can receive the simulated code position command sent by the upper computer and send the code position information to the ground signal simulation mechanism composed of a general locomotive signal coder, a locomotive signal loop, or other ground signal devices.

[0025] The train operation control recording device overcomes the deficiencies in data acquisition and processing and the low efficiency of emergency braking and pressure simulation existing in the existing LKJ system in the training field. Through the design of the LKJ acquisition and control unit and the locomotive signal coding unit, it improves the data acquisition accuracy, response processing speed, and the processing efficiency of emergency braking and pressure simulation, thus overall enhancing the reliability of the device and the stability in complex operations.

[0026] The above description shows the main features, basic principles, and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments or examples, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, the above-described embodiments or examples should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A train operation control recording device, characterized in that: Including an input , an output terminal is respectively connected to a lower computer (1) of a train console and an LKJ host, and an upper computer (2) for receiving simulation operation information uploaded by the lower computer (1) and sending simulation speed data information to the lower computer (1). The lower computer (1) and the upper computer (2) are connected by bidirectional data through network communication. Among them, the lower computer (1) includes a CPU processor (11), an LKJ acquisition and control unit (12), and a locomotive signal coding unit (13); the LKJ acquisition and control unit (12) includes a 4-channel A / D acquisition module (121), a 12-channel input acquisition module (122), a 4-channel D / A output module (123), a PWM speed output module (124), an LKJ host (125), and a power supply module; the train console is connected to the input end of the CPU processor (11) through the 4-channel A / D acquisition module (121) and the 12-channel input acquisition module (122), and the output end of the CPU processor (11) is connected to the LKJ host (125) through the 4-channel D / A output module (123) and the PWM speed output module (124); the locomotive signal coding unit (13) includes an FPGA controller (131), a D / A conversion module (132), a power amplifier output module (133), a coding coil (134), as well as a data storage module and a power supply module; the output end of the CPU processor (11) is connected to the coding coil (134) through the FPGA controller (131), the D / A conversion module (132), and the power amplifier output module (133); the CPU processor (11) is connected to the upper computer (2) by bidirectional data through network communication.

2. The train operation control recording device according to claim 1, characterized in that: The LKJ acquisition and control unit (12) further includes a stepping motor speed acquisition mechanism, and the stepping motor speed acquisition mechanism includes a stepping motor (126) and a speed sensor (127).

3. The train operation control recording device according to claim 2, characterized in that: It further includes a ground signal simulation mechanism (135), and the locomotive signal coding unit (13) is communicatively connected to the ground signal simulation mechanism (135) through the coding coil (134).

4. The train operation control recording device according to claim 3, characterized in that: The CPU processor (11) adopts a minimum function circuit of an STM32F407VET6 single-chip microcomputer; the FPGA controller (131) adopts an XC6SLX9-2TQG144 CPLD logic controller.

Images