Train wireless network device

Abstract

The invention provides a train wireless network device. The device comprises a wireless access integration module and a terminal acquisition module, the wireless access integration module comprises a panel indication module and at least one wireless access sub-module, the panel indication module is in communication connection with the wireless access sub-module, the terminal acquisition module comprises at least one terminal acquisition device, and the terminal acquisition devices support different communication protocols; the wireless access sub-module is suitable for being in wireless connection with the terminal acquisition equipment corresponding to the supported communication protocol in response to the wireless connection request of each terminal acquisition equipment; and the panel indication module is suitable for collecting and displaying the working state and / or the running state of the communication interface of the wireless access sub-module. According to the train wireless network device, wireless communication connection with terminal acquisition equipment with different transmission characteristics can be realized only through the integrated wireless access integrated module, and the construction cost of the train wireless network device is reduced.

Description

Technical Field

[0001] The present invention relates to the field of electronic communication technology, and in particular to a train wireless network device. Background Art

[0002] As train speeds increase, ensuring train safety becomes increasingly important. This requires timely detection and prevention of faults and their escalation, along with appropriate maintenance measures. Train safety monitoring systems, combined with information technology, are designed to promptly detect faults and implement appropriate countermeasures during operation, ensuring safe operation and guiding vehicle maintenance.

[0003] The train safety monitoring system includes multiple monitoring subsystems, each of which requires status information collection through terminal acquisition equipment. These different types of terminal acquisition devices are installed in scattered locations. Some are installed inside the carriage, while others are installed on the lower part of the car body and the wheel axle under the car. In addition, the wireless transmission characteristics of these different types of terminal acquisition devices are also inconsistent. Some require low power consumption and low bandwidth, while others require high bandwidth and high information security. Most existing train wireless network devices only support one wireless transmission method and cannot well take into account the characteristics of terminal acquisition devices with different transmission characteristics. On the basis of existing train wireless network devices, if you want to support multiple wireless network transmission methods, you need to install corresponding wireless communication equipment at each terminal acquisition device. This is not only cumbersome and takes up space, but also increases the cost of setting up the train wireless network device. Summary of the Invention

[0004] The main purpose of the embodiment of the present invention is to provide a train wireless network device, which simplifies the implementation process of wireless communication of acquisition terminals supporting different communication protocols and reduces the cost required for train wireless communication.

[0005] In order to achieve the above-mentioned objectives, an embodiment of the present invention provides, on the one hand, a train wireless network device, including a wireless access integration module and a terminal acquisition module; the wireless access integration module includes a panel indication module and at least one wireless access sub-module, the panel indication module and the wireless access sub-module are communicatively connected, and the terminal acquisition module includes at least one terminal acquisition device; the wireless access sub-module is suitable for responding to the wireless connection request of each terminal acquisition device and wirelessly connecting to the terminal acquisition device corresponding to the supported communication protocol to realize wireless communication connection of the train; the panel indication module is suitable for collecting and displaying the working status and / or operation status of the communication interface of the wireless access sub-module.

[0006] Optionally, the wireless access integration module also includes an authentication module, which is communicatively connected to the target wireless access sub-module and the panel indication module respectively, and the target wireless access sub-module is a wireless access sub-module corresponding to the communication protocol supported by the target terminal acquisition device; the authentication module is suitable for responding to the access request sent by the target terminal acquisition device and authenticating the access request sent by the target terminal acquisition device; the target wireless access sub-module is suitable for establishing a wireless communication connection with the target terminal acquisition device after the authentication module is authenticated, and the target terminal acquisition device is a terminal acquisition device whose supported communication protocol requires security authentication; the panel indication module is also suitable for collecting and displaying one or more of the communication interface working status, operation status and power status of the authentication module.

[0007] Optionally, it also includes a cable, which includes a first cable and a second cable, the first cable is connected through the driver's cab of the train and the mechanical room of the train, and the second cable is arranged under the train; the cable is suitable for providing wireless signals for the driver's cab of the train, the mechanical room of the train and the terminal acquisition module.

[0008] Optionally, the cable is a leaky cable.

[0009] Optionally, the terminal acquisition module further includes a wireless communication terminal corresponding to the communication protocol supported by each terminal acquisition device; the wireless access submodule is further adapted to establish a wireless communication connection with the wireless communication terminal corresponding to each terminal acquisition device.

[0010] Optionally, each of the wireless communication terminals is integrated into the corresponding terminal acquisition device.

[0011] Optionally, a power supply module is further included, which is communicatively connected to the panel indication module, the authentication module and the wireless access submodule respectively; the power supply module is suitable for supplying power to the panel indication module, the authentication module and the wireless access submodule.

[0012] Optionally, the authentication module, the wireless access submodule, the power module and the panel indication module are integrated on a mainboard.

[0013] Optionally, the communication protocols supported by each of the terminal acquisition devices include one or more of the WAPI communication protocol, Bluetooth communication protocol, ZigBee communication protocol, MQTT communication protocol and LoRa communication protocol.

[0014] Optionally, the terminal acquisition device includes a train status information acquisition device and / or a train operation control system device.

[0015] Optionally, the wireless access integrated module adopts a wall-mounted structure.

[0016] The train wireless network device provided in an embodiment of the present invention can achieve wireless communication connection with terminal acquisition devices with different transmission characteristics only through an integrated wireless access integrated module, without the need to connect to other devices, thereby reducing the cost of setting up the train wireless network device and making the process of setting up the train wireless network relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural block diagram of a train wireless network device according to an embodiment of the present invention;

[0019] Figure 2 is a structural block diagram of a second train wireless network device according to an embodiment of the present invention;

[0020] Figure 3 is a structural block diagram of a third train wireless network device according to an embodiment of the present invention;

[0021] Figure 4 This is a structural block diagram of a fourth train wireless network device in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Before explaining the technical solution of the present invention in detail, it should be noted that the acquisition, storage, use, and processing of data in the technical solution of the present invention comply with the relevant provisions of national laws and regulations.

[0024] As train speeds increase, ensuring train safety becomes increasingly important. It's crucial to promptly detect and prevent the occurrence and expansion of faults during operation, and to implement appropriate maintenance procedures. The train safety monitoring system, combined with information technology, evaluates changes in the train's operating status, promptly detects and implements appropriate countermeasures during operation, ensuring passenger train safety and guiding vehicle maintenance. Examples of operational status changes include: whether the basic braking system is functioning properly during operation; whether the train's operating quality deteriorates during operation; whether the anti-skid devices in the wheelset protection system are functioning properly during operation; whether there are wheels with excessive abrasions during operation; whether bearing temperatures exceed the limit warning during operation; whether the onboard electrical system is safe during operation; and whether there are fire hazards in key fire prevention areas such as the distribution room.

[0025] At present, the train safety monitoring system based on the EMU industrial Ethernet has realized the comprehensive monitoring and warning, linkage control and diagnosis functions related to EMU safety monitoring.

[0026] The train safety monitoring system primarily consists of eight systems: fire monitoring, video monitoring, brake monitoring, running monitoring, train power supply monitoring, insulation monitoring, door monitoring, and anti-skid monitoring. Each monitoring system requires status information to be collected through terminal data acquisition devices. These different types of terminal data acquisition devices are installed in various locations, ranging from inside the train cars to under the car body and on the wheel axles. Furthermore, the wireless transmission characteristics of these different types of terminal data acquisition devices vary, with some requiring low power consumption and low bandwidth, while others require high bandwidth and high information security. Most existing train wireless network systems only support a single wireless transmission method, failing to adequately address the needs of terminal data acquisition devices with different transmission characteristics. Supporting multiple wireless transmission methods on existing train wireless network systems requires multiple access devices, which is not only cumbersome and space-consuming, but also increases the cost of setting up the train wireless network system.

[0027] In addition, most of the high-bandwidth wireless transmission on existing trains adopts WIFI technology standards. WIFI technology standards use a binary access method. There is no certificate management for terminal access. Data can be illegally obtained by simply obtaining information such as the access password. Moreover, since the WIFI Technology Standards Alliance is a foreign organization, it cannot cooperate with the national encryption algorithm for encryption. Therefore, the data security of wireless networks using WIFI technology standards cannot be guaranteed.

[0028] Therefore, in order to solve the technical problems of the existing train safety monitoring system in supporting multiple wireless transmission modes, such as complicated processes, high costs and inability to guarantee data security, the embodiments of the present invention provide a train wireless network device to solve the above technical problems.

[0029] The train mentioned in the embodiments of the present invention can be understood as a rail train or rail transportation vehicle. The embodiments provide a train wireless network device and a train safety monitoring system applicable to all rail trains. Rail trains include but are not limited to trains, motor vehicles, high-speed trains, maglev trains, light rail, subways, etc.

[0030] The train wireless network device provided by the embodiment of the present invention has a wireless access device that supports wireless communication access methods of various types of communication protocols, and can establish wireless communication connections with terminal acquisition devices with different transmission characteristics without accessing other devices, thereby reducing the cost of setting up the train wireless network device. At the same time, the process of setting up the train wireless network is relatively simple.

[0031] Figure 1 FIG is a structural block diagram of a train wireless network device according to an embodiment of the present invention. Figure 1 As shown, the train wireless network device includes: a wireless access integration module 100 and a terminal acquisition module 200.

[0032] The terminal acquisition module 200 includes at least one terminal acquisition device. Each terminal acquisition device supports different communication protocols. The supported communication protocols are determined according to the transmission requirements of the terminal acquisition device. That is, the different transmission requirements of the terminal acquisition device determine the different communication protocols supported by the terminal acquisition device.

[0033] The communication protocol may include, but is not limited to, WAPI communication protocol, Bluetooth communication protocol, ZigBee communication protocol, MQTT communication protocol, and LoRa communication protocol.

[0034] For example, if the terminal acquisition device's transmission requirements are high bandwidth and low latency, then the communication protocol that meets these transmission requirements may be WAPI. In other words, the communication protocol supported by the terminal acquisition device is WAPI. For another example, if the terminal acquisition device's corresponding transmission requirements are low power consumption, long distance, strong penetration, and low bandwidth, then the communication protocol supported by the terminal acquisition device may be LoRa.

[0035] Embodiments of the present invention support wireless communication connections using WAPI. WAPI is a secure communication protocol that uses the SM2 algorithm for data encryption. This encryption method is more secure and reliable than WEP, WPA, and WPA2, meeting the security requirements of train network systems and improving the security and reliability of data transmission in train wireless communications. This provides accurate data support for subsequent security monitoring systems based on the transmitted data, enabling more accurate security monitoring results, facilitating timely resolution of security issues during train operation and improving train safety.

[0036] If the classification criteria are based on the type of information collected by terminal data acquisition devices, then terminal data acquisition devices can include train status information acquisition devices and / or train operation control system equipment. Train status information acquisition devices include, but are not limited to, various types of sensors, cameras, and microphones. Train operation control system equipment includes, but is not limited to, train display screens, traction controllers, brake controllers, train-to-ground transmission units, input and output units, and other devices. The specific model of the terminal data acquisition device can be selected based on the actual application scenario and is not limited in this invention.

[0037] The wireless access integrated module 100 includes a panel indicator module 110 and at least one wireless access submodule 120 (only one wireless access submodule 120 is shown in the figure). The panel indicator module 110 and the wireless access submodule 120 are communicatively connected. It should be noted that each wireless access submodule communicates with a terminal acquisition device that supports a communication protocol. The terminal acquisition device that supports a communication protocol may include, but is not limited to, one terminal acquisition device.

[0038] The wireless access submodule 120 is adapted to respond to wireless connection requests from each terminal data acquisition device and establish a wireless connection with the terminal data acquisition device corresponding to the supported communication protocol to achieve wireless communication connection of the train. The wireless access submodules include, but are not limited to, a WAPI AP wireless access submodule and a LoRa gateway wireless access submodule. The WAPI AP wireless access submodule may be, but is not limited to, a Qualcomm IPQ5018 module, and the LoRa gateway wireless access submodule may be, but is not limited to, an SX1302 module.

[0039] The panel indicator module 110 is adapted to collect and display the operating status of the wireless access submodule's communication interfaces and / or the operational status of each communication interface. Specifically, it is adapted to collect the connected / disconnected status of the wireless access submodule's communication interfaces and the system operational status, thereby facilitating monitoring the operating status of each communication interface, promptly identifying and locating any communication interface problems, and thus facilitating management of the train's wireless network system.

[0040] The display method for the wireless access integrated module 100's communication interface operating status, the operational status of each communication interface, and the power status can be configured based on the actual application scenario. The communication interface status can be displayed using indicator lights, with different indicators corresponding to different states. For example, the connected or disconnected status of each module's communication interface is indicated by a LINK indicator, while the system operational status of the wireless access submodule is indicated by a RUN indicator. Furthermore, an indicator light indicates normal operation, while an off light indicates an abnormality. Of course, the above is merely an example, and embodiments of the present invention are not limited to the above example. The above indicator lights can be selected from existing indicator lights based on actual circumstances. The specific model of the indicator lights is not limited here, as long as they can achieve the above-mentioned indication functions.

[0041] From the above content, it can be seen that the train wireless network device provided by the embodiment of the present invention, the wireless access integration module 100 integrates the wireless access sub-module 120 corresponding to the communication protocol supported by the terminal acquisition device of each terminal acquisition module 200, so as to realize the unified access of wireless terminals that support multiple communication protocols by one device at the same time, and embodies the idea of integration. In this way, wireless communication connection with each terminal acquisition device can be achieved through an integrated wireless access device, thereby reducing the addition of equipment and the cost of setting up the train wireless network device. At the same time, the process of setting up the train wireless network is relatively simple.

[0042] The status of each module is displayed through the panel indicator module, which makes it easier to observe the operation of each module and monitor the working status of each communication interface, so as to timely discover problems with the communication interface and facilitate the positioning of the problem communication interface, and facilitate unified monitoring and maintenance of the train wireless network device.

[0043] Furthermore, the train wireless network device provided by the embodiment of the present invention has high compatibility and can support a variety of wireless communication protocols, thereby supporting terminal access with a variety of wireless transmission requirements, and having better system compatibility.

[0044] In yet another embodiment, Figure 2 FIG. 1 shows a structural block diagram of a second train wireless network device according to an embodiment of the present invention. Figure 2 As shown, the wireless access integration module also includes an authentication module 130, which is in communication with the target wireless access submodule (one of the wireless access submodules) and the panel indication module. The authentication module can be, but is not limited to, an AS authentication server. The AS authentication server can be, but is not limited to, an X86 platform. The authentication process of the AS authentication server is a conventional access request authentication process and will not be further described here. The target wireless access submodule here is the wireless access submodule corresponding to the communication protocol supported by the target terminal acquisition device.

[0045] The authentication module 130 is adapted to authenticate the access request sent by the target terminal acquisition device in response to the access request sent by the target terminal acquisition device. The target terminal acquisition device here can be understood as a terminal acquisition device whose supported communication protocol requires security authentication, and the target terminal acquisition device includes but is not limited to one.

[0046] After the authentication module passes the authentication, the target wireless access submodule is further adapted to establish a wireless communication connection with the target terminal acquisition device.

[0047] This configuration effectively prevents unauthorized access. Furthermore, by integrating the authentication module into the wireless access integrated module 100, wireless communication with various types of terminal data acquisition devices can be achieved, thereby enabling the construction of a highly compatible train wireless network system. Furthermore, the wireless access integrated module 100 also integrates the functionality of an authentication server, including the communication protocol, significantly saving installation space, reducing the cost of setting up the train wireless network system, and facilitating unified maintenance.

[0048] In one embodiment, the type and number of communication interfaces of the wireless access submodule 120 can be configured based on practical needs and are not limited by the present invention. For example, the wireless access submodule 120 supports at least two Ethernet interfaces, at least two CAN bus interfaces, one RS485 interface, two LoRa communication antenna interfaces, and two WAPI communication antenna interfaces, with the antenna interfaces utilizing SMT technology. Furthermore, to adapt to the train operating environment and ensure communication reliability, the Ethernet interface utilizes an M12 D code type, thereby ensuring the reliability and stability of the train wireless communication system.

[0049] The Ethernet interface is the connection point between the Ethernet physical layer and the MAC (Media Access Control) layer, enabling connections to other network devices. The primary function of an Ethernet interface is to allow devices to send and receive data within the network. The CAN bus interface enables data exchange between devices, improving system reliability and security, simplifying system wiring, supporting multi-master communication and flexible configuration, and promoting standardized and modular design. The RS485 interface, with its long-distance, multi-point communication, and high anti-interference capabilities, plays a vital role in modern industrial automation and communication systems. It enables data communication and information exchange between devices, improving system reliability and flexibility.

[0050] By providing various types of communication interfaces in the wireless access submodule 120 , the wireless access integrated module 100 can perform data transmission with various types of terminal acquisition devices, thus having wider applicability.

[0051] It should be noted that, because different communication protocols require different authentication methods when accessing wireless communication connections, the number of wireless access sub-modules 120 can correspond to the number of communication protocols supported by the terminal acquisition module 200. Wireless connection requests with the communication protocols supported by the terminal acquisition device can be authenticated through the wireless access sub-modules 120. Of course, if at least one communication protocol has the same access or authentication function, a corresponding wireless access sub-module 120 can be configured for that at least one communication protocol, eliminating the need for duplicate configurations and thus reducing the cost of setting up the train wireless network device.

[0052] Taking the WAPI communication protocol supported by the terminal acquisition device as an example, security authentication is required. The following describes the process by which the wireless access submodule 120 establishes a wireless communication connection with the terminal acquisition device: The wireless access submodule 120 integrates the WAPI wireless technology AP access terminal function. When the WAPI terminal acquisition device sends an access request, the authentication module 130 is adapted to respond to the access request sent by the WAPI terminal acquisition device and, through the WAPI wireless technology AS authentication server function, check whether the wireless communication request includes a valid certificate issued by the AS authentication server. If so, authentication succeeds; if not, authentication fails. After successful authentication, the wireless access submodule 120 establishes a wireless communication connection with the WAPI terminal acquisition device.

[0053] Taking the communication protocol supported by the terminal acquisition device as LoRa as an example, no security authentication is required at this time. The following describes the process of the wireless access sub-module 120 realizing wireless communication connection with the terminal acquisition device: the wireless access sub-module 120 integrates the LoRa wireless technology gateway function, and the wireless access sub-module 120 receives the wireless communication connection request through the integrated LoRa wireless technology gateway function, and establishes a wireless communication connection with the LoRa terminal acquisition device.

[0054] In one embodiment, the terminal acquisition module 200 further includes a wireless communication terminal corresponding to the communication protocol supported by each terminal acquisition device. The wireless access submodule 120 is also adapted to establish a wireless communication connection with the wireless communication terminal corresponding to each terminal acquisition device to achieve wireless communication connection of the train.

[0055] A wireless communication terminal, or terminal module used for wireless data transmission, enables communication and data transmission within the coverage area of a wireless network, freeing users from the constraints of traditional wired connections and providing a more flexible and convenient data transmission method. There are many types of wireless terminals, which are not limited here. For example, wireless communication terminals include but are not limited to: personal mobile devices such as smartphones, tablets, laptops, and smartwatches, as well as industrial or professional equipment such as wireless data transmission, wireless routers, wireless modems, handheld wireless Wi-Fi data acquisition terminals, and vehicle-mounted terminals.

[0056] The wireless communication terminal may be integrated into the corresponding terminal acquisition device, or may be installed in an area near the terminal acquisition device, which is not limited in the embodiment of the present invention.

[0057] The size, number and type of interfaces supported, and power supply method of the wireless communication terminal can be configured according to the actual application scenario and are not limited in the present embodiment. The power supply method can be powered by the terminal acquisition device, by the train electronic equipment, or by an external power supply.

[0058] Preferably, the wireless communication terminal can be miniaturized to facilitate on-board installation. Power can be supplied by the terminal's data acquisition equipment or by the train's electronic equipment. This eliminates the need for additional power supplies, reduces access equipment, simplifies the installation of the train wireless network, reduces space on the train, and further reduces the cost of installing the train wireless network.

[0059] An example of two wireless communication terminals 210 is given below:

[0060] Example 1: If the terminal acquisition device supports the WAPI communication protocol, then the corresponding wireless communication terminal 210 is a WAPI terminal. Any existing WAPI terminal can be used and is not described here. In this case, the WAPI terminal can adopt a modular design and minimize its size to facilitate on-site installation on the train. The WAPI terminal supports one Ethernet port, which uses an M12 D-code type and supports Power over Ethernet (PoE) power supply. Alternatively, the terminal acquisition device can be used to power the port.

[0061] Example 2: If the terminal acquisition device supports the LoRa communication protocol, then the corresponding wireless communication terminal 210 is a LoRa terminal. Any existing LoRa terminal can be used and is not described here. In this case, the LoRa terminal can adopt a modular design and minimize its size, which is also convenient for on-site installation on the train. The LoRa terminal module supports one CAN bus interface and is powered by 24V DC.

[0062] In this embodiment, by installing a wireless communication terminal corresponding to the communication protocol supported by each terminal acquisition device, even if the terminal acquisition device itself cannot communicate, a train wireless network device can be established by installing the corresponding wireless communication terminal, thereby further simplifying the construction process of the train wireless network device and being applicable to wireless communication connections of various types of terminal acquisition devices, thereby further improving the compatibility of the train wireless network device.

[0063] In order to make the wireless access integrated module work properly, it is necessary to power the wireless access integrated module 100. In another embodiment, Figure 3 FIG. 1 shows a structural block diagram of a third train wireless network device according to an embodiment of the present invention. Figure 3 As shown, it also includes a power module 140, and the power module 140 is communicatively connected to the panel indication module, the authentication module and the wireless access submodule respectively.

[0064] The power module 140 is adapted to power the panel indicator module, the authentication module, and the wireless access submodule. Specifically, the power module is adapted to convert the train's DC110V into, but not limited to, DC24V, DC5V, or DC3.3V to power the panel indicator module, the authentication module, and the wireless access submodule.

[0065] The power module can be but not limited to the HG-2450A high-frequency switching power supply. Based on the power module, the panel indication module, the authentication module and the wireless access submodule are unified, laying the foundation for realizing the wireless access integrated module.

[0066] In this embodiment, the panel indicator module 110 is further adapted to collect and display one or more of the following: the operating status of the power module's communication interface, the operational status of each communication interface, and the power status. Specifically, the panel indicator module 110 is adapted to collect the power module's power status, thereby facilitating monitoring of the power module's operating status, promptly identifying and locating power module problems, and thus facilitating management of the train's wireless network device.

[0067] The display mode of the power status of the power module can be set according to the actual application scenario. The communication interface status can be displayed by an indicator light, and the indicator lights corresponding to each state will be different. For example, the power module is displayed by the PWR indicator light. Furthermore, if the indicator light is on, it indicates normal operation, and if it is off, it indicates an abnormality. Of course, the above is only an example, and the embodiments of the present invention are not limited to the above example. The above indicator light can be selected from existing indicator lights according to actual conditions. There is no restriction on the specific model of the indicator light here, as long as the above indication function can be achieved.

[0068] In one embodiment, the design is further miniaturized, and the authentication module 130, the wireless access submodule 120, the power module 140 and the panel indication module 110 are integrated on a main board. In this way, while meeting the miniaturization of the train wireless network device, the stability and anti-vibration characteristics of the train wireless network device are also improved.

[0069] In one embodiment, the structure of the wireless access integrated module 100 can be configured according to actual conditions and is not limited by the present invention. For example, to facilitate installation on a train, the wireless access integrated module 100 of the present invention adopts a modular wall-mounted structure to facilitate installation on the train and save space.

[0070] Generally, a train is divided into a driver's cab and a machine room, which are separated by metal bodies and metal doors, making wireless signals unable to penetrate. In addition, different types of terminal collection devices are installed in scattered locations, resulting in incomplete wireless signal coverage. In order to solve this technical problem, in another embodiment, Figure 4 FIG. 4 shows a structural block diagram of a fourth train wireless network device according to an embodiment of the present invention. Figure 4 As shown, the train wireless network device also includes a cable.

[0071] The cable is used to provide wireless signals to all devices in the train. Furthermore, the cable includes a first cable 310 and a second cable 320. The first cable 310 runs through and connects the train's driver's cab and the train's machinery room, while the second cable 320 is installed under the train. The cable is suitable for providing wireless signals to the train's driver's cab, the train's machinery room, and the terminal acquisition module.

[0072] That is to say, in the embodiment of the present invention, a through cable is arranged between the driver's cab and the machinery of the train, and another cable is arranged under the train in a through manner, which can well cover the terminal collection equipment of the running part under the train, thereby achieving full coverage of the train wireless signal based on the two cables.

[0073] In a preferred embodiment, the cable is a leaky cable. A leaky cable antenna is placed between the train's driver's cab and the machinery room, allowing a single antenna to cover both cab and machinery room equipment. Another leaky cable is placed under the train, effectively covering the terminal data acquisition equipment on the undercarriage, improving the stability and effectiveness of wireless communication.

[0074] In addition, the leakage cable has high mechanical strength and anti-collision strength. Compared with traditional antenna forms, it can better adapt to the harsh application environment under the train and improve the service life of the train wireless network device.

[0075] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other. Each embodiment focuses on the differences between the other embodiments. In particular, the hardware + program embodiments are generally similar to the method embodiments, so their description is relatively simple. For relevant portions, refer to the description of the method embodiments.

[0076] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0077] Although the present application provides method operation steps as described in the embodiments or flowcharts, more or fewer operation steps may be included based on conventional or non-creative work. The order of steps listed in the embodiments is only one way of executing the steps among many steps and does not represent the only execution order. When the actual device or client product is executed, it can be executed in sequence or in parallel according to the method shown in the embodiments or the drawings (for example, in a parallel processor or multi-threaded processing environment).

[0078] Although the present specification embodiment provides the method operation steps as described in the embodiment or flow chart, more or less operation steps may be included based on conventional or non-creative means. The order of steps listed in the embodiment is only one way in the order of execution of many steps and does not represent a unique execution order. When the device or terminal product in practice is executed, it can be performed in sequence or in parallel according to the method shown in the embodiment or the accompanying drawings (such as a parallel processor or a multi-threaded processing environment, or even a distributed data processing environment). The term "comprise", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, product or equipment including a series of elements not only include those elements, but also include other elements not clearly listed, or also include elements inherent to such process, method, product or equipment. In the absence of more restrictions, it is not excluded that there are other identical or equivalent elements in the process, method, product or equipment including the elements.

[0079] For the convenience of description, the above devices are described in terms of functions divided into various modules. Of course, when implementing the embodiments of this specification, the functions of each module can be implemented in the same or multiple software and / or hardware, or the modules that implement the same function can be implemented by a combination of multiple sub-modules or sub-units, etc. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0080] Those skilled in the art will also appreciate that, in addition to implementing the controller in pure computer-readable program code, it is entirely possible to implement the same functionality by logically programming the method steps in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, embedded microcontrollers, and the like. Therefore, such a controller can be considered a hardware component, and the devices included therein for implementing various functions can also be considered structures within the hardware component. Alternatively, the devices for implementing various functions can be considered both software modules implementing the method and structures within the hardware component.

[0081] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0082] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0083] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0084] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0085] Memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

[0086] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0087] Those skilled in the art will appreciate that the embodiments of this specification may be provided as methods, systems, or computer program products. Therefore, the embodiments of this specification may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the embodiments of this specification may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] The various embodiments of this specification may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The embodiments of this specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communications network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0089] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from the other embodiments. In particular, since the system embodiments are generally similar to the method embodiments, the description is relatively simple. For relevant parts, reference can be made to the description of the method embodiments. Throughout this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the embodiments in this specification. In this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate the different embodiments or examples, and features of different embodiments or examples, described in this specification, without conflict.

[0090] The above description is merely an example of the embodiments of this specification and is not intended to limit the embodiments of this specification. For those skilled in the art, various modifications and variations of the embodiments of this specification are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of this specification shall be included within the scope of the claims of the embodiments of this specification.

Claims

1. A train wireless network device, characterized in that: Including wireless access integration module and terminal acquisition module; The wireless access integration module includes a panel indication module and at least one wireless access submodule, the panel indication module and the wireless access submodule are communicatively connected, and the terminal acquisition module includes at least one terminal acquisition device; The wireless access submodule is adapted to respond to wireless connection requests from each terminal acquisition device and establish a wireless connection with the terminal acquisition device corresponding to the supported communication protocol to achieve wireless communication connection of the train; The panel indication module is adapted to collect and display the working status and / or operating status of the communication interface of the wireless access submodule.

2. The train wireless network device according to claim 1, wherein: The wireless access integration module further includes an authentication module, which is respectively in communication with the target wireless access submodule and the panel indication module, wherein the target wireless access submodule is a wireless access submodule corresponding to the communication protocol supported by the target terminal acquisition device; The authentication module is adapted to authenticate the access request sent by the target terminal acquisition device in response to the access request sent by the target terminal acquisition device; The target wireless access submodule is adapted to establish a wireless communication connection with the target terminal acquisition device after passing the authentication by the authentication module, wherein the target terminal acquisition device is a terminal acquisition device whose supported communication protocol requires security authentication; The panel indication module is further adapted to collect and display one or more of the communication interface working status, operation status and power status of the authentication module.

3. The train wireless network device according to claim 1, wherein: The train also includes a cable, the cable including a first cable and a second cable, the first cable running through and connecting the driver's cab of the train and the machine room of the train, and the second cable being arranged under the train; The cable is suitable for providing wireless signals to the driver's cab of the train, the machine room of the train and the terminal acquisition module.

4. The train wireless network device according to claim 3, wherein: The cable is a leaky cable.

5. The train wireless network device according to claim 1, wherein: The terminal acquisition module also includes a wireless communication terminal corresponding to the communication protocol supported by each terminal acquisition device; The wireless access submodule is further adapted to establish wireless communication connection with the wireless communication terminal corresponding to each of the terminal acquisition devices.

6. The train wireless network device according to claim 5, wherein: Each of the wireless communication terminals is integrated into the corresponding terminal acquisition device.

7. The train wireless network device according to claim 2, wherein: It also includes a power supply module, which is communicatively connected to the panel indication module, the authentication module and the wireless access submodule respectively; The power supply module is suitable for supplying power to the panel indication module, the authentication module and the wireless access submodule.

8. The train wireless network device according to claim 7, wherein: The authentication module, the wireless access submodule, the power module and the panel indication module are integrated on a main board.

9. The train wireless network device according to claim 1, wherein: The communication protocols supported by each of the terminal acquisition devices include one or more of the WAPI communication protocol, Bluetooth communication protocol, ZigBee communication protocol, MQTT communication protocol and LoRa communication protocol.

10. The train wireless network device according to claim 1, wherein: The terminal acquisition equipment includes train status information acquisition equipment and / or equipment of the train operation control system.

11. The train wireless network device according to claim 1, wherein: The wireless access integrated module adopts a wall-mounted structure.

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