Multifunctional fusion vehicle-mounted terminal for intelligent operation and maintenance

Abstract

The invention provides a multifunctional fusion vehicle-mounted terminal for intelligent operation and maintenance, and relates to the technical field of intelligent operation and maintenance of urban rail transit. The vehicle-mounted terminal comprises a main control processing unit, a digital input unit, an analog input unit, an Ethernet board, an interface board, an MVB board, a wireless communication board, a switching board, a data storage unit and a data processing board which are respectively connected by a power supply unit; the system is used for providing access requirements for various vehicle-mounted devices and realizing centralized management and analysis of data. According to the vehicle-mounted terminal, centralized collection, processing, storage and analysis of data are achieved, the operation and maintenance efficiency is improved, the remote alarm function is achieved, abnormal conditions can be found and processed in time, and safe operation of a train is ensured. Along with continuous development of the urban rail transit industry, the multi-vehicle-mounted terminal can be applied to more fields, and a greater contribution is made for improving the intelligent operation and maintenance level of the whole industry.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent operation and maintenance of urban rail transit, and specifically relates to a multifunctional fusion vehicle-mounted terminal for intelligent operation and maintenance. Background Art

[0002] In the actual application of subsystems in urban rail transit vehicles, there are objective phenomena that the functions of each system are independent, the data is isolated, and it is impossible to share. Each host is responsible for the power supply, control, signal access, data processing and data transmission of the system. However, this situation will bring many problems: First, due to the independence of equipment and data between subsystems, it is difficult to achieve cross-system communication in terms of status data, process data, monitoring results, etc. of on-board equipment. This makes it impossible for operation and maintenance personnel to perform comprehensive intelligent operation and maintenance of the entire system, resulting in a decrease in operation and maintenance capabilities. Secondly, in terms of resource utilization, the independent on-board hosts of each subsystem have overlapping functions. This repeated layout not only increases the number of equipment, but also increases the installation space requirements. This further leads to increased maintenance and management costs and reduces the efficiency of intelligent operation and maintenance. Summary of the invention

[0003] The present invention provides a multifunctional integrated vehicle-mounted terminal for intelligent operation and maintenance, and the improvement lies in that the vehicle-mounted terminal includes a main control processing unit, a digital input unit, an analog input unit, an Ethernet board, an interface board, an MVB board, a wireless communication board, a switching board, a data storage unit and a data processing board respectively connected by a power supply unit; it is used to provide access requirements to various vehicle-mounted devices and realize centralized management and analysis of data.

[0004] Furthermore, the vehicle-mounted terminal is composed of two power supply units, a main control processing unit and three interface boards, a switching board, a digital input unit, an analog input unit, a wireless communication board and an MVB board, and twelve data processing boards. The vehicle-mounted terminal provides power supply, whole machine control, data processing, data storage, Wi-Fi communication, 5G communication, Ethernet communication, MVB communication digital access and analog access functions to various vehicle-mounted equipment.

[0005] Furthermore, the on-board terminal is connected to the first train on-board equipment through a data processing board. The first train on-board equipment includes a running gear monitoring subsystem on the train, an acceleration sensor under the train, an axle box temperature and vibration composite sensor, an off-train data acquisition processor and a connector. By connecting to the data processing board, the centralized collection, processing, storage, analysis and remote alarm functions of the running gear monitoring data are realized.

[0006] Furthermore, the main control processing unit includes a real-time clock, data storage, running vehicle subsystem algorithm model, IO port, wireless communication connection, Ethernet interface and HDMI interface, which are used to complete the system management of the vehicle terminal.

[0007] Furthermore, the switching board includes 28 Ethernet channels, 26 of which are on the backplane and are respectively connected to the data processing board, interface board, analog input unit, digital input unit, main control processing unit and MVB board; 2 channels are on the front panel and are used for debugging vehicle-mounted equipment, and can be networked with other multi-functional fusion terminals through two debugging ports on the front panel; among them, the 26 Ethernet channels have no less than 104 pins.

[0008] Furthermore, the power supply unit is used to power the multifunctional fusion terminal. The redundant design of two power supply units is adopted to improve the power supply security of the multifunctional fusion terminal. DC110V-1 and DC110V-2 are respectively powered by two circuit breakers in the electrical cabinet. The power supply unit filters, isolates, and converts the DC110V input into DC12V and DC24V, and provides power supply to the multifunctional fusion terminal at the same time. When one of the power supply units fails, the other power supply unit can meet the normal operation of the multifunctional fusion terminal.

[0009] Furthermore, the on-board terminal sets the installation positions and electrical connection interfaces of twelve data processing boards. The on-board equipment of each train is distinguished by the different Ethernet connection pins of the data processing board. The 12-way connector of the on-board terminal is powered by a common 24V power supply. Each connector has 4 pins to provide Ethernet connection, requiring a total of 60 pins. The connector selects a 64-pin board-to-board connector, of which 4 are used for public power supply. The width of each panel on the front panel is 20mm.

[0010] Beneficial effects: The present invention provides a multifunctional integrated vehicle-mounted terminal for intelligent operation and maintenance, which realizes cross-system intelligent management by integrating the resources of various sub-devices and data resources; can better grasp the operating status of the entire system and improve the operation and maintenance capabilities; at the same time, by optimizing resource utilization, reducing the number of equipment and installation space requirements, reducing maintenance and management costs, and further improving the efficiency of intelligent operation and maintenance.

[0011] The vehicle-mounted terminal of the present invention realizes the centralized collection, processing, storage and analysis of data, improves the operation and maintenance efficiency, and has a remote alarm function. It can detect and handle abnormal situations in a timely manner to ensure the safe operation of trains. With the continuous development of the urban rail transit industry, multi-vehicle terminals will be applied in more fields, making greater contributions to improving the intelligent operation and maintenance level of the entire industry.

[0012] It should be understood that the above general description and the following specific embodiments are only exemplary and illustrative and do not limit the scope of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1A schematic diagram of a multifunctional integrated vehicle terminal for intelligent operation and maintenance according to the present invention; Figure 2 A multifunctional integrated vehicle terminal for intelligent operation and maintenance according to the present invention Hardware Board Schematic diagram; Figure 3 A schematic diagram of a main control processing unit of a multifunctional fusion vehicle terminal for intelligent operation and maintenance according to the present invention; Figure 4 A schematic diagram of a power supply unit for a multifunctional integrated vehicle terminal for intelligent operation and maintenance according to the present invention; Figure 5A-Figure 5B A multifunctional fusion vehicle-mounted terminal data processing board interface design for intelligent operation and maintenance according to the present invention; It should be understood that the drawings are not necessarily drawn to scale, presenting somewhat simplified representations of various features illustrative of the basic principles of the present disclosure. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment.

[0014] In the drawings, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0015] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments of the present invention, it should be understood that this specification is not intended to limit the present invention to those exemplary embodiments. On the other hand, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various alternatives, modifiers, equivalents and other embodiments, which may be included in the spirit and scope of the present invention as defined by the appended claims.

[0016] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The specific structures and functions described in the exemplary embodiments of the present invention are for illustrative purposes only. Embodiments according to the concepts of the present invention can be implemented in various forms, and it should be understood that they should not be interpreted as being limited to the exemplary embodiments described in the exemplary embodiments, but include all modifications, equivalents or substitutes included in the spirit and scope of the present invention.

[0017] Throughout the specification, the professional terms used herein are only for describing various exemplary embodiments and are not intended to be limiting. It will be further understood that the terms "include", "comprising", "having", etc., when used in the exemplary embodiments, specifically refer to the presence of the stated parts, steps, operations or elements, but do not exclude the presence or addition of one or more other parts, steps, operations or elements.

[0018] The present invention provides a multifunctional integrated vehicle terminal for intelligent operation and maintenance, which is used for intelligent operation and maintenance of urban rail transit. It realizes cross-system intelligent management by integrating the equipment resources and data resources of each subsystem. The terminal can better grasp the operating status of the entire system and improve the operation and maintenance capabilities; at the same time, it optimizes resource utilization, reduces the number of equipment and installation space requirements, and reduces maintenance and management costs; the implementation of the present invention can significantly improve the intelligent operation and maintenance level of urban rail transit, reduce operating costs, and improve operating efficiency.

[0019] like Figure 1 As shown, the present invention provides a multifunctional integrated vehicle terminal for intelligent operation and maintenance. The onboard terminal upgrades and controls the onboard equipment of the train, distributes resources, and performs vehicle-ground collaborative processing, and sends the results to the ground operation and maintenance platform. It realizes the integration of multi-business system information between the onboard terminal and the ground operation and maintenance platform, covers functions from the whole scene of vehicle and ground, fully explores and utilizes the data value of each link, and comprehensively improves the efficiency of intelligent operation and maintenance.

[0020] In the above technical scheme, the on-board terminal includes a main control processing unit, a digital input unit, an analog input unit, an Ethernet board, an interface board, an MVB board, a wireless communication board, a switching board, a data storage unit and a data processing board, which are respectively connected by a power supply unit; it is used to provide power supply, whole machine control, data processing, data storage, Wi-Fi communication, 5G communication, Ethernet communication, MVB communication digital access and analog access functions to the on-board terminal; it meets the access needs of various train on-board equipment, and realizes centralized management and analysis of data, and stable transmission and processing of data.

[0021] In the above technical solution, if Figure 2 As shown, the vehicle-mounted terminal is composed of two power supply units, a main control processing unit and three interface boards, a switching board, a digital input unit, an analog input unit, a wireless communication board and an MVB board and twelve data processing boards.

[0022] In the above technical solution, if Figure 3 As shown, the main control processing unit completes the management of the entire on-board terminal, and has functions such as real-time clock, data storage, running train on-board equipment algorithm model, IO port, wireless communication connection, Ethernet interface, HDMI interface, etc. In the above technical solution, the switch board has 28 Ethernet channels, of which 26 channels are on the backplane and are connected to the main control unit, interface board, analog input unit, digital input unit and MVB board respectively. Two channels are on the front panel for equipment debugging, and can also be networked with other vehicle terminals through the two debugging ports on the front panel; 26 Ethernet channels require at least 104 pins, and a 120-pin board-to-board connector is selected during hardware design.

[0023] In the above technical solution, the wireless communication board is used for wireless communication between the vehicle-mounted terminal and the ground network, which can meet the communication methods of WIFI and 5G at the same time. For data that needs to be transmitted in real time, 5G can be used, and for data that can be transmitted offline, WIFI can be used for transmission.

[0024] In the above technical solution, the interface board provides 3 Ethernet access interfaces, and multiple train-mounted devices can establish communication with the on-board terminal through this network port.

[0025] In the above technical solution, the power supply unit adopts a two-by-two design, the four main control processing units of the main control processing unit are redundantly designed, and the MVB board is mutually hot-standby redundantly designed, etc. It can ensure the stability and reliability of power supply, meet the needs of multiple train on-board equipment access, and ensure the stability and reliability of data transmission.

[0026] In the above technical solution, the power supply unit supplies power to the entire vehicle terminal, and a redundant design of two power boards is adopted to improve the power supply security of the multifunctional fusion terminal. Figure 4 As shown, DC110V-1 and DC110V-2 are powered by two circuit breakers in the electrical cabinet respectively. The power board filters, isolates, and converts the DC110V input into DC12V and DC24V, and supplies power to the vehicle terminal at the same time. When one of the power boards fails, the other power board can meet the normal operation of the vehicle terminal.

[0027] In the above technical solution, the onboard terminal sets the installation position and electrical connection interface of the 12-way data processing board, adopts a unified interface form, and has the same physical structure. Each data processing board is designed according to the connector pin definition provided by the onboard terminal. The connector is responsible for transmitting the power supply and Ethernet data of the data processing board. The data processing board of each train onboard equipment is installed on the onboard terminal data processing board. The corresponding position is selected according to the configuration for installation. Installation errors will not be recognized, but will not affect the onboard terminal. Figure 5A-Figure 5BAs shown in the figure, the pin definitions of the electrical interfaces on the vehicle terminal side of the data processing board 1 and the data processing board 2 are shown. The CN1 connector is the plug-in connector of the data processing board 1. Pins A1 and B1 are 24V power interfaces, A2 and B2 are power ground interfaces, and A3, B3, A4, and B4 correspond to TX1+, TX1-, RX1+, and RX1-, respectively, as a group of Ethernet interfaces. The CN2 connector is the plug-in connector of the data processing board 2. Pins A1 and B1 are 24V power interfaces, A2 and B2 are power ground interfaces, and A3, B3, A4, and B4 correspond to TX2+, TX2-, RX2+, and RX2-, respectively, as a group of Ethernet interfaces. And so on. Each connector has the same power supply but different Ethernet pins. Each train onboard equipment is distinguished by the different Ethernet connection pins of the data processing board. The pin definitions are considered when designing the data processing board. The 12-way connector of the vehicle terminal is powered by a common 24V power supply. Each connector needs another 4 pins to provide Ethernet connection, requiring a total of 60 pins. In terms of hardware design and selection, the connector is a 64-pin board-to-board connector, of which 4 are used for public power supply. In terms of the physical size of the front panel, the width of each panel is 20mm, which can meet the installation requirements in terms of installation space.

[0028] In the above technical solution, the external chassis of the onboard terminal adopts a 6U chassis design and installation method. This design can reduce the repeated power supply design, main control design, wireless communication design, and MVB design of each train onboard equipment, and only retain one set of designs. According to different train onboard equipment, installation positions are equipped, and only the corresponding train onboard equipment needs to be installed. This design can reduce the installation space, avoid unnecessary cost waste, centralized management, and facilitate later maintenance.

[0029] In the above technical scheme, the on-board terminal is connected to the on-board equipment of the first train through a data processing board; the on-board equipment of the first train mainly includes an acceleration sensor under the vehicle, an axle box temperature and vibration composite sensor and an off-vehicle data acquisition processor and an on-vehicle running gear monitoring subsystem; the present invention realizes the centralized collection, processing, storage and analysis of running gear monitoring data, and has a remote alarm function, which is used to improve the intelligent operation and maintenance level of the running gear monitoring subsystem. In the urban rail transit industry, the running gear monitoring subsystem is an important link to ensure the safe operation of trains.

[0030] The vehicle-mounted terminal is connected to the under-vehicle data acquisition processor through a data processing board; the data processing board has an interface for communicating with the under-vehicle data acquisition processor, and can realize the acquisition and processing of acceleration sensor and axle box temperature vibration composite sensor data.

[0031] All collected and processed data will be stored in the data storage unit; the data storage unit uses high-performance storage devices to ensure data reliability and security. At the same time, the data storage unit also supports query and analysis of historical data to provide a basis for subsequent operation and maintenance.

[0032] When an abnormal situation occurs in the running gear monitoring subsystem, the main control processing unit in the vehicle terminal will send an alarm message to the remote monitoring center in the ground operation and maintenance platform through a switch or wireless communication board. The alarm message includes detailed information of the abnormal data, the time of occurrence, etc., so that the remote monitoring center can take corresponding measures in time.

[0033] In the above technical solution, the on-board terminal is connected to the on-board equipment of the second train through an analog input unit to realize the centralized collection, processing, storage and analysis of the temperature and humidity sensor data; the multiple temperature and humidity sensors in the on-board equipment of the second train are used to realize the centralized management of temperature and humidity, and improve the efficiency and accuracy of data processing. In the air-conditioning system of urban rail transit, the temperature and humidity sensor is a key device for monitoring the temperature and humidity in the car.

[0034] The vehicle terminal receives an analog signal from the temperature and humidity sensor through an analog input unit, and the analog signal represents the temperature and humidity values ​​in the vehicle compartment. The analog input unit converts the analog signal into a digital signal and performs preliminary processing and analysis.

[0035] The vehicle terminal stores the processed data in a high-performance data storage unit. The data storage unit uses fast storage devices to ensure the real-time and reliability of the data. At the same time, the data processing unit also has the ability to process and analyze historical data, and can generate trend charts and reports of temperature and humidity, etc., to provide a basis for subsequent operation and maintenance and optimization.

[0036] When the temperature or humidity in the car exceeds the preset safety range, the vehicle terminal triggers the alarm mechanism. Through the Ethernet interface or wireless communication module, the vehicle terminal sends the alarm information to the remote monitoring center in the ground operation and maintenance platform. The alarm information includes detailed information of the abnormal data, the time of occurrence, etc., so that the remote monitoring personnel can take corresponding measures in time.

[0037] In the above technical solution, the on-board terminal is connected to the third train on-board equipment through a digital input unit. The train control system in the third train on-board equipment is used to improve the stability and reliability of the train control system. In the urban rail transit industry, the train control system is a key part to ensure the safe and punctual operation of the train.

[0038] The on-board terminal receives a digital signal from a train control system in the on-board equipment of the third train through a digital input unit. The digital signal indicates information such as the state, position, speed, etc. of the train. The digital input unit converts the digital signal into a format for subsequent processing and analysis.

[0039] The converted data is stored in a high-performance data storage unit. The data storage unit uses high-speed storage devices to ensure the real-time and reliability of the data. At the same time, the data processing unit processes and analyzes the collected data to extract useful information, such as the real-time position and speed of the train, to provide a basis for the automatic driving and scheduling of the train.

[0040] When an abnormal situation occurs in the train control system, the main control processing unit of the onboard terminal will send an alarm message to the remote monitoring center in the ground operation and maintenance platform through a switch or wireless communication module. The alarm message includes detailed information of the abnormal data, the time of occurrence, etc., so that the remote monitoring personnel can take corresponding measures in time.

[0041] In the above technical solution, the on-board terminal is connected to the on-board equipment of the fourth train through an Ethernet board. The passenger information system (PIS system) in the on-board equipment of the fourth train is used to ensure efficient and accurate transmission of information and to achieve collaborative work with other systems. In urban rail transit, the passenger information system (PIS system) is a key platform for providing real-time information, announcements and emergency notifications.

[0042] The onboard terminal is equipped with an Ethernet board, which establishes a connection with the passenger information system (PIS system) in the onboard equipment of the fourth train through a standard Ethernet protocol (such as TCP / IP). The Ethernet protocol connection ensures high-speed and stable data transmission to meet the needs of real-time information update.

[0043] Through Ethernet connection, the vehicle terminal can receive various information sent by the PIS system in real time, such as train arrival time, emergency announcements, service information, etc. At the same time, the vehicle terminal can also send the collected data of other subsystems (such as environmental monitoring data, safety monitoring data, etc.) to the PIS system through Ethernet to realize information sharing and integration.

[0044] Based on Ethernet connection, the remote monitoring center in the ground operation and maintenance platform can obtain the operating status of the vehicle terminal and PIS system in real time, and perform remote configuration, fault diagnosis, software update and other operations, which greatly improves the maintainability and response speed of the PIS system.

[0045] The above-mentioned embodiments of the present application can be implemented in various hardware, software coding or a combination of the two. For example, the embodiments of the present application can also represent the program code for executing the above-mentioned method in a data signal processor. The present application can also relate to the various functions performed by a computer processor, a digital signal processor, a microprocessor or a field programmable gate array. The above-mentioned processor can be configured according to the present application to perform specific tasks, which are completed by executing machine-readable software code or firmware code that defines the specific method disclosed by the present application. The software code or firmware code development can represent different programming languages ​​and different formats or forms. Different target platform compiled software codes can also be represented. However, the different code styles, types and languages ​​of the software code for performing tasks according to the present application and other types of configuration codes do not depart from the spirit and scope of the present application.

[0046] The foregoing description of specific exemplary embodiments of the present invention has been presented for the purpose of illustration and description. It is not intended to exclude or limit the present invention to the precise form disclosed, and it is obvious that many modifications and changes are feasible in view of the above teachings. Exemplary embodiments are selected and described to explain certain principles of the present invention and their practical application, so that other technicians in the field can make or use various exemplary embodiments of the present invention, and various alternatives and modifications thereof. It is intended that the scope of the present invention will be defined by the claims attached hereto and their equivalents.

[0047] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A multifunctional integrated vehicle terminal for intelligent operation and maintenance, characterized in that: The vehicle-mounted terminal includes a main control processing unit, a digital input unit, an analog input unit, an Ethernet board, an interface board, an MVB board, a wireless communication board, a switching board, a data storage unit and a data processing board, which are respectively connected by a power supply unit; and is used to provide access requirements for various vehicle-mounted devices and realize centralized management and analysis of data.

2. The multifunctional integrated vehicle terminal for intelligent operation and maintenance according to claim 1 is characterized in that: The vehicle-mounted terminal consists of two power supply units, a main control processing unit and three interface boards, a switching board, a digital input unit, an analog input unit, a wireless communication board and an MVB board, and twelve data processing boards. The vehicle-mounted terminal provides power supply, whole machine control, data processing, data storage, Wi-Fi communication, 5G communication, Ethernet communication, MVB communication digital access and analog access functions to various vehicle-mounted equipment.

3. The multifunctional integrated vehicle terminal for intelligent operation and maintenance according to claim 2 is characterized in that: The on-board terminal is connected to the first train on-board equipment through a data processing board. The first train on-board equipment includes a running gear monitoring subsystem on the train, an acceleration sensor under the train, an axle box temperature and vibration composite sensor, an off-train data acquisition processor and a connector. By connecting to the data processing board, the centralized collection, processing, storage, analysis and remote alarm functions of the running gear monitoring data are realized.

4. The multifunctional integrated vehicle terminal for intelligent operation and maintenance according to claim 1 is characterized in that: The main control processing unit includes a real-time clock, data storage, an algorithm model for running the vehicle subsystem, an IO port, a wireless communication connection, an Ethernet interface and an HDMI interface, which are used to complete the system management of the vehicle terminal.

5. The multifunctional integrated vehicle terminal for intelligent operation and maintenance according to claim 1 is characterized in that: The switching board includes 28 Ethernet channels, 26 of which are on the backplane and are connected to the data processing board, interface board, analog input unit, digital input unit, main control processing unit and MVB board respectively; 2 channels are on the front panel and are used for debugging on-board equipment, and can be networked with other multi-functional fusion terminals through the two debugging ports on the front panel; among them, the 26 Ethernet channels have no less than 104 pins.

6. The multifunctional integrated vehicle terminal for intelligent operation and maintenance according to claim 1 is characterized in that: The power supply unit is used to power the multifunctional fusion terminal. The redundant design of two power supply units is adopted to improve the power supply security of the multifunctional fusion terminal. DC110V-1 and DC110V-2 are respectively powered by two circuit breakers in the electrical cabinet. The power supply unit filters, isolates, and converts the DC110V input into DC12V and DC24V, and provides power supply to the multifunctional fusion terminal at the same time. When one of the power supply units fails, the other power supply unit can meet the normal operation of the multifunctional fusion terminal.

7. The multifunctional integrated vehicle terminal for intelligent operation and maintenance according to claim 1 is characterized in that: The on-board terminal sets the installation positions and electrical connection interfaces of twelve data processing boards. The on-board equipment of each train is distinguished by the different Ethernet connection pins of the data processing board. The 12-way connector of the on-board terminal is powered by a common 24V power supply. Each connector has 4 pins to provide Ethernet connection, requiring a total of 60 pins. The connector selects a 64-pin board-to-board connector, of which 4 are used for public power supply. The width of each panel on the front panel is 20mm.

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