CN209928606U

CN209928606U - Wireless transmission device for heavy-duty rolling stock

Info

Publication number: CN209928606U
Application number: CN201920900682.XU
Authority: CN
Inventors: 潘勇卓; 黄志平; 王隆龙; 王兢; 叶鹏迪; 高枫; 张顺广; 赵震; 张明
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-01-10
Anticipated expiration: 2029-06-14

Abstract

The application provides a wireless transmission device of heavy-duty rolling stock, includes: the device comprises a shell arranged on a heavy-duty locomotive vehicle, and a processor, an Ethernet transmitter, a 4G transmitter and a positioner which are respectively and fixedly arranged in the shell; the Ethernet transmitter, the 4G transmitter and the locator are respectively connected to the processor; the localizer is in communication connection with a corresponding satellite, and the 4G transmitter is in communication connection with a corresponding first server; the Ethernet transmitter is in communication connection with each vehicle-mounted device in the heavy-duty rolling stock via the Ethernet of the heavy-duty rolling stock. The wireless transmission device in the application can effectively improve the reliability and the real-time performance of data transmission of the heavy-duty rolling stock through comprehensive application of various wireless communication devices, and further can effectively improve the carrying reliability and the safety of the heavy-duty rolling stock.

Description

Wireless transmission device for heavy-duty rolling stock

Technical Field

The application relates to the technical field of rolling stock equipment, in particular to a wireless transmission device of a heavy-load rolling stock.

Background

With the rapid development of heavy-duty transportation technology for freight trains, heavy-duty transportation technology has become one of the important directions for the development of railway freight, and rolling stock which is used for heavy-duty transportation is called heavy-duty rolling stock. The research on heavy-duty rolling stock has also become an important means for increasing the energy of the railway and improving the economic benefit. In order to improve the transportation reliability of heavy-duty rolling stocks, research and development on communication modes of heavy-duty rolling stocks are required.

In the prior art, the communication mode of a heavy-duty rolling stock is generally data transmission with a vehicle-mounted device inside the rolling stock through an MVB bus, or data transmission with an external ground server by using a wireless transmission mode.

However, the existing heavy-duty rolling stock has a single communication mode, and cannot meet the communication requirements of mountainous regions, tunnels and the like during the operation of the rolling stock.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the application provides a wireless transmission device of heavy-duty rolling stock, through the comprehensive application of multiple wireless communication device, can effectively improve the reliability and the real-time of heavy-duty rolling stock's data transmission, and then can effectively improve heavy-duty rolling stock's delivery reliability and security.

In order to solve the technical problem, the application provides the following technical scheme:

the application provides a wireless transmission device of heavy-duty rolling stock, includes: the device comprises a shell arranged on a heavy-duty locomotive vehicle, and a processor, an Ethernet transmitter, a 4G transmitter and a positioner which are respectively and fixedly arranged in the shell;

the Ethernet transmitter, the 4G transmitter and the locator are respectively connected to the processor;

the localizer is in communication connection with a corresponding satellite, and the 4G transmitter is in communication connection with a corresponding first server;

the Ethernet transmitter is in communication connection with each vehicle-mounted device in the heavy-duty rolling stock via the Ethernet of the heavy-duty rolling stock.

Further, the data wireless transmission method of the heavy-duty locomotive vehicle comprises the following steps: a power source fixedly disposed within the housing;

the power supply is connected with the processor to supply power to the processor.

Further, the method for wirelessly transmitting data of a heavy-duty locomotive vehicle further comprises the following steps: a wireless transmitter fixedly disposed within the housing;

and the wireless transmitter is respectively in communication connection with the processor and the corresponding second server.

Further, the method for wirelessly transmitting data of a heavy-duty locomotive vehicle further comprises the following steps: a watchdog device fixedly arranged in the shell;

the watchdog device is in communication connection with the processor.

Furthermore, a complex programmable logic device is connected between the watchdog device and the processor.

Further, the positioner includes: a Beidou locator and/or a GPS locator;

the satellite corresponding to the Beidou positioner is a Beidou satellite, and the satellite corresponding to the GPS positioner is a GPS satellite.

Further, the first server is arranged in the total control center.

Further, the second server is arranged in a station and/or a vehicle garage corresponding to the heavy-load locomotive vehicle.

Further, the shell comprises a plastic layer, a conductive oxidation layer and an aluminum layer which are sequentially covered from outside to inside in a sealing manner.

Further, the housing includes: the device comprises a base, four side plates fixedly arranged on the base and panels arranged at the top ends of the four side plates, wherein a cubic cavity for accommodating each device is formed among the base, the four side plates and the panels;

the panel is provided with a plurality of interfaces, and each interface is connected to each device fixedly arranged in the shell in a one-to-one mode.

Furthermore, a plurality of indicator lights which are respectively in one-to-one correspondence with the interfaces are further arranged on the panel, and each indicator light is respectively connected to each device fixedly arranged in the shell in a one-to-one manner.

Further, the side plates of the shell are fins for heat dissipation.

Further, the housing is fixedly arranged on one side of a support, and the other side of the support is fixedly arranged on the heavy-duty rolling stock.

According to the above technical solution, the present application provides a wireless transmission device for heavy-duty rolling stock, including: the device comprises a shell arranged on a heavy-duty locomotive vehicle, and a processor, an Ethernet transmitter, a 4G transmitter and a positioner which are respectively and fixedly arranged in the shell; the Ethernet transmitter, the 4G transmitter and the locator are respectively connected to the processor; the localizer is in communication connection with a corresponding satellite, and the 4G transmitter is in communication connection with a corresponding first server; the Ethernet transmitter is in communication connection with each vehicle-mounted device in the heavy-duty rolling stock via the Ethernet of the heavy-duty rolling stock. The wireless transmission device in this application structure is reliable and integrated degree is high, through the comprehensive application of multiple wireless communication device, can effectively improve heavy-duty rolling stock's data transmission's reliability and real-time, and then can effectively improve heavy-duty rolling stock's delivery reliability and security, even move highway sections such as mountain region and tunnel, also can effectively guarantee heavy-duty rolling stock's communication reliability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a wireless transmission device of a heavy-duty rolling stock according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a wireless transmission device of a heavy-duty rolling stock according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of an outer wall of the housing 21 in the embodiment of the present application.

Fig. 4 is a schematic structural diagram of the housing 21 in the embodiment of the present application.

Fig. 5 is a side view of the housing 21 in the embodiment of the present application.

Fig. 6 is a schematic diagram illustrating an exemplary structure of the panel 213 in the embodiment of the present application.

Fig. 7 is a flow chart of a data wireless transmission method for a heavy-duty rolling stock according to an embodiment of the present application.

Fig. 8 is a hardware block diagram for resetting the watchdog device in the application example of the present application.

Fig. 9 is a control block diagram of the reset logic of the watchdog device in the application example of the present application.

Reference numerals:

1. heavy-duty rolling stock;

11. an in-vehicle device;

2. a wireless transmission device;

21. a housing;

211. a base;

212. a side plate;

213. a panel;

214. a plastic layer;

215. a conductive oxide layer;

216. an aluminum layer;

22. a processor;

23. an Ethernet transmitter;

24. a 4G transmitter;

25. a positioner;

251. a Beidou positioner;

252. a GPS locator;

26. a power source;

27. a wireless transmitter;

28. a watchdog device;

29. a complex programmable logic device;

3. a satellite;

31. a Beidou satellite;

32. a GPS satellite;

4. a first server;

5. a master control center;

6. a second server;

7. a station;

8. a vehicle garage;

9. an interface;

91. a wireless WLAN transmission interface;

92. a 4G transmission interface;

93. a Beidou BDS interface;

94. a power supply control PWR interface;

95. an Ethernet ETH interface;

96. an RS232 communication interface;

97. a switch CONSOLE interface;

10. and an indicator light.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In consideration of the problem that the existing heavy-duty rolling stock cannot meet the communication requirements of mountainous regions, tunnels and the like in the running process of the rolling stock due to single communication mode, the application provides a wireless transmission device of the heavy-duty rolling stock and a wireless data transmission method of the heavy-duty rolling stock, wherein the wireless data transmission device comprises a shell arranged on the heavy-duty rolling stock, and a processor, an Ethernet transmitter, a 4G transmitter and a positioner which are respectively and fixedly arranged in the shell; the Ethernet transmitter, the 4G transmitter and the locator are respectively connected to the processor; the localizer is in communication connection with a corresponding satellite, and the 4G transmitter is in communication connection with a corresponding first server; the Ethernet transmitter is in communication connection with each vehicle-mounted device in the heavy-duty rolling stock through the Ethernet of the heavy-duty rolling stock, so that the wireless transmission device is reliable in structure and high in integration degree, the reliability and the real-time performance of data transmission of the heavy-duty rolling stock can be effectively improved through comprehensive application of various wireless communication devices, the carrying reliability and the safety of the heavy-duty rolling stock can be further effectively improved, and the communication reliability of the heavy-duty rolling stock can be effectively guaranteed even if the heavy-duty rolling stock runs to sections such as mountainous regions, tunnels and the like.

In one or more embodiments of the present application, the heavy-duty rolling stock, which may also be referred to as a heavy-duty train, may be divided into unit-type, alignment-type, and combination-type heavy-duty trains. The unit type heavy-load train is a transportation unit formed by combining fixed rolling stocks (such as a high-power locomotive and special trucks of the same type which are compiled into a certain number) and is used as a freight train which is circulated and directly runs at a loading and unloading station. The whole-line heavy-duty vehicle is a train which adopts an organization method of a common train, is drawn by a high-power single machine or a plurality of machines hung at the head of the train and is mixed and marshalled by freight cars of various types and loads to reach the specified load standard. The combined heavy-duty train is formed by connecting and combining two or more ordinary freight trains running in the same direction end to end.

In one or more embodiments of the present application, the standard for Ethernet, IEC61375-3-4-2014, specifies the standard for Ethernet communications networks (Ethernet ConsultNetwork ECN) in Train communications networks (Train communications network TCN). The main reason for establishing the standard is that the data volume of the current train communication is increased sharply, and the traditional train bus cannot meet the transmission of large data volume, so the Ethernet communication is adopted to meet the transmission requirement of data. The TRDP (train real-time Data Protocol) Protocol is used for a rail transit real-time ethernet network, and is an essential condition for improving real-time performance and ensuring reliability of the ethernet network for railways. Research shows that the railway control system needs to ensure that the delay time is about 50ms, and the requirement can be met by using an Ethernet TRDP protocol. Specifically, the Ethernet cable should employ category 5 ultra-shielded twisted pair compliant with ISO/IEC 11801. The wire diameter of the vehicle internal connection ethernet cable and the cross-vehicle (permanent coupler or semi-automatic coupler) connection ethernet cable should be at least 22 AWG. If the ethernet cable is applied to the automatic coupler, it should be considered that the ethernet cable with a larger wire diameter is used, and the ethernet cable between the terminal device and the switch device and between the switch device and the switch device needs to adopt a cross wire. The Ethernet connector adopts an M12D type coding connector conforming to DIN EN 61076-2-101. Jacks can be used at the equipment end and pins can be used at the cable end. The Ethernet terminal equipment comprises equipment which is provided with an Ethernet interface, such as TCU, BCU, APU and the like, and is connected to the Ethernet switch.

In order to effectively improve the reliability and real-time performance of data transmission of a heavy-duty rolling stock through the comprehensive application of various wireless communication devices, and further effectively improve the carrying reliability and safety of the heavy-duty rolling stock, the application provides an embodiment of a wireless transmission device of the heavy-duty rolling stock, and referring to fig. 1, the wireless transmission device 2 of the heavy-duty rolling stock specifically comprises the following contents:

a housing 21 arranged on the heavy-duty rolling stock 1, a processor 22, an Ethernet transmitter 23, a 4G transmitter 24 and a locator 25 which are respectively fixedly arranged in the housing 21; the ethernet transmitter 23, the 4G transmitter 24 and the locator 25 are respectively connected to the processor 22; the localizer 25 is in communication connection with the corresponding satellite 3 and the 4G transmitter 24 is in communication connection with the corresponding first server 4; the ethernet transmitter 23 is communicatively connected to the respective on-board devices 11 in the heavy-duty rolling stock 1 via the ethernet network of the heavy-duty rolling stock 1.

It can be understood that the processor may specifically adopt a Central Processing Unit (CPU), the 4G transmitter 24 and the locator 25 may be independently arranged, for example, the 4G transmitter 24 may select an LTE 4G data transmission terminal, and the locator 25 may adopt a vehicle-mounted GPS positioning terminal, a beidou GPS locator, or a beidou + GPS dual mode; for convenience of device installation, the 4G transmitter 24 and the locator 25 may also be integrated, for example, the 4G transmitter 24 and the locator 25 may select a SIMCOM model SIM7600CE-T wireless communication module, the SIM7600CE-T is an SMT-packaged module, supports frequency bands such as LTE-TDD/LTE-FDD/HSPA +/TD-SCDMA/EVDO and GSM/GPRS/EDGE, and supports LTE rat 4 (downlink speed is 150 Mbps). The system has stable performance, small appearance and high cost performance, and can realize the transmission of SMS and data information with low power consumption. The size of the SIM7600CE-T is 30 multiplied by 2.9mm, so that the SIM7600CE-T can meet the design requirements of various compact products and can meet various requirements of customers. The ethernet transmitter 23 may specifically be an ethernet optical fiber transceiver, which is a bidirectional transparent converter that provides ethernet data signals to optical fiber data signals, and may transmit the ethernet signals through an optical fiber line to break through the limit of a transmission distance of 100 meters, so that the ethernet network coverage is greatly extended. The optical fiber data communication has the characteristics of long communication distance, large communication data capacity, difficulty in interference and the like, is widely used, optical fibers penetrate into all layers of all industries, but the original network system is based on cable communication, and the optical fiber transceiver ensures that electric signals and optical fiber signals can be smoothly converted into each other, so that the optical fiber data communication is suitable for the Ethernet environment which needs high speed, high data flow, high performance and high reliability, such as telecommunication, radio and television, broadband networks and the like.

By applying the wireless transmission device of the heavy-duty rolling stock, the ethernet transmitter 23 may obtain the basic state information of each onboard device of the heavy-duty rolling stock by using the ethernet of the heavy-duty rolling stock according to the train data acquisition instruction issued by the processor 22, and send the obtained basic state information to the processor 22; the locator 25 may acquire the current position information of the locator according to the position information acquisition instruction sent by the processor 22, and summarize the current position information of the locator in a time period to form the dynamic position tracking information corresponding to the time period, then the locator 25 sends the current position information of the locator or the dynamic position tracking information to the processor 22, the processor 22 summarizes the basic state information and the dynamic position tracking information in a preset time period and sends the summarized information to the 4G transmitter 24, the 4G transmitter 24 sends the received basic state information and the dynamic position tracking information to the first server 4, so that the ground terminal connected to the first server 4 receives the basic state information and the dynamic position tracking information, and the basic state information and the dynamic position tracking information are subjected to operations such as fault early warning, fault identification, driving safety, driving route tracking and the like.

In addition, the first server 4 may also transmit a control instruction sent by the ground terminal to the 4G transmitter 24, so that the 4G transmitter 24 forwards the received control instruction to the processor 22, and the processor 22 reads content in the control instruction, and if the content in the control instruction includes a data monitoring instruction, the controller executes a corresponding preset data monitoring task. The preset data monitoring task may specifically be: the controller issues a corresponding train data acquisition instruction to the ethernet transmitter 23 according to the data monitoring instruction, and issues a corresponding position information acquisition instruction to the positioner 25. And if the content in the control instruction comprises a data transmission instruction, the controller executes a corresponding preset data transmission task. The preset data transmission task may specifically be: the controller sends the basic state information and the dynamic position tracking information to the 4G transmitter 24 according to the data transmission instruction, so that the 4G transmitter 24 sends the basic state information and the dynamic position tracking information to the first server 4.

It will be appreciated that the first server 4 may specifically be a fixedly arranged ground server. The dynamic location tracking information consists of current location information of the wireless communication device for each time node over a period of time. The basic state information may include at least one of speed state information, traction state information, braking state information, axle temperature state information, air conditioning state information, and door state information of the heavy-duty rolling stock.

In order to further improve the operation reliability of the wireless transmission device on the basis of improving the reliability and real-time performance of data transmission of the heavy-duty rolling stock, in an embodiment of the wireless transmission device of the heavy-duty rolling stock of the present application, referring to fig. 2, the wireless transmission device 2 of the heavy-duty rolling stock further includes the following contents:

a power source 26 fixedly disposed within the housing 21; the power supply 26 is connected to the ethernet transmitter 23 and the processor 22, respectively. For example, the power supply 26 may provide power for the CPU and the CPU function board.

In addition, in order to further improve the operational reliability of the entire wireless transmission apparatus, the power supply 26 may supply power to all devices in the wireless transmission apparatus, that is, the power supply 26 may be electrically connected to each device in the wireless transmission apparatus.

It is understood that, in one or more embodiments of the present application, the device includes the processor, the ethernet transmitter, the 4G transmitter, and the locator mentioned above, and further includes a wireless transmitter, a watchdog device, a complex programmable logic device, a beidou locator, a GPS locator, and various indicator lights, etc. which are not mentioned above, and it is specifically understood that components disposed in or on the housing of the wireless transmission device all belong to the category of the device in the present application.

In order to further improve the effectiveness and safety of data transmission of the wireless transmission device based on improving the reliability and real-time performance of data transmission of the heavy-duty rolling stock, in an embodiment of the wireless transmission device of the heavy-duty rolling stock of the present application, referring to fig. 2, the wireless transmission device of the heavy-duty rolling stock further includes the following contents:

and the wireless transmitters 27 are fixedly arranged in the shell 21, and the wireless transmitters 27 are respectively in communication connection with the processor 22 and the corresponding second server 6. The second server 6 includes at least one, and if there is one second server 6, the second server may be disposed in the station 7 or the garage 8 corresponding to the heavy-duty rolling stock, and if there are a plurality of second servers 6, there may be a second server 6 disposed in the station 7 corresponding to the heavy-duty rolling stock, and there may also be a second server 6 disposed in the garage 8 at the same time.

The controller may apply a wireless transmitter 27 for data transmission with the station 7 and/or the garage 8 when the heavy-duty rolling stock is driven to the corresponding station 7 and/or parked in the corresponding garage 8.

In one example, the wireless transmitter 27 may be a WLAN transmitter model SL869V 2.

In order to further improve the carrying reliability and safety of the heavy-duty rolling stock on the basis of improving the reliability and real-time performance of data transmission of the heavy-duty rolling stock, so that the heavy-duty rolling stock can effectively ensure the communication reliability of the wireless transmission device even if the heavy-duty rolling stock runs to a road section such as a mountain area, a tunnel and the like, in an embodiment of the wireless transmission device of the heavy-duty rolling stock, referring to fig. 2, the wireless transmission device of the heavy-duty rolling stock further comprises the following contents:

a watchdog device 28 fixedly disposed within the housing 21, the watchdog device 28 communicatively coupled to the processor 22. It will be appreciated that in order to further improve the reliability of the application of the watchdog arrangement 28, a complex programmable logic device 29, also referred to as a CPLD, is connected between the watchdog arrangement 28 and the processor 22. It will be appreciated that the watchdog arrangement 28 is a means for periodically checking the internal conditions of the processor 22 chip and issuing a restart signal to the chip in the event of an error. The watchdog command has the highest priority among the interrupts of the program. The program is prevented from running away. And can also prevent the program from generating dead loop when running on line. For example, the watchdog device 28 may employ a model ZW20-12 or model ZW20A-12F intelligent demarcation vacuum circuit breaker.

It is understood that complex Programmable Logic devices (cpld) are developed from PAL and GAL devices, and are relatively large in scale and complex in structure, and belong to the field of large-scale integrated circuits. The digital integrated circuit is a digital integrated circuit which is used by a user to construct logic functions according to respective needs.

In one embodiment of the wireless transmission device of the heavy-duty rolling stock of the present application, the locator 25 may be a beidou locator 251 or a GPS locator 252. As shown in fig. 2, the locator 25 may also adopt a beidou locator 251 and a GPS locator 252 at the same time to further improve the accuracy and the real-time performance of position information acquisition, and correspondingly, the satellite corresponding to the beidou locator 251 is the beidou satellite 31, and the satellite corresponding to the GPS locator 252 is the GPS satellite 32.

In order to be able to further increase the accuracy and timeliness of the fault data identification of a heavy-duty rolling stock, the first server 4 is arranged in the general control center 5, see fig. 2.

In order to further improve the electromagnetic shielding effect of the wireless transmission device, in an embodiment of the wireless transmission device of the heavy-duty rolling stock of the present application, referring to fig. 3, the housing 21 includes a plastic layer 214, a conductive oxide layer 215, and an aluminum layer 216, which are sequentially covered and sealed from outside to inside, and a processor, an ethernet transmitter, a 4G transmitter, and a locator are disposed in a space formed by the aluminum layer 216, and further includes devices such as the wireless transmitter, the watchdog device, the complex programmable logic device, the beidou locator, and the GPS locator, which are not mentioned above. Particularly, the base material of casing is the aluminum product, does the spraying plastics processing again after the aluminium product surface is electrically conductive the oxidation, the casing designs for not having directly to outer gap in the aspect of the structure, and then can effectively promote electromagnetic shield effect.

In order to further improve the electromagnetic shielding effect and the application reliability of the wireless transmission device, in an embodiment of the wireless transmission device of a heavy-duty rolling stock of the present application, referring to fig. 4 and 5, the housing 21 specifically includes the following contents:

the device comprises a base 211, four side plates 212 fixedly arranged on the base 211 and a panel 213 arranged at the top ends of the four side plates 212, wherein a cubic cavity for accommodating each device is formed among the base 211, the four side plates 212 and the panel 213; the panel 213 is provided with a plurality of interfaces 9, and each interface 9 is connected to each device fixedly disposed in the housing 21 in a one-to-one manner. The side plates 212 are positioned in a lap joint mode, so that the structural strength of the wireless transmission device can be effectively enhanced. The butt joint of the panel 213 and the side plate 212 is in an embedded butt joint mode, so that the electromagnetic shielding effect can be effectively improved. And the side plate 212 of the housing 21 is formed by concave-convex processing, i.e. a fin for heat dissipation, so as to increase the heat dissipation area.

In addition, in order to further improve the application reliability of the wireless transmission device, in an embodiment of the wireless transmission device of the heavy-duty rolling stock of the present application, a plurality of indicator lamps are further disposed on the panel 213, which correspond to the interfaces 9 one to one, respectively, and each of the indicator lamps is connected to each device fixedly disposed in the housing 21 in a one-to-one manner.

And, in order to further improve the convenience of assembling and disassembling the wireless transmission device for maintenance or repair, and further improve the reliability of the application of the wireless transmission device, in an embodiment of the wireless transmission device of the heavy-duty rolling stock of the present application, the housing 21 is fixedly disposed on one side of a bracket, and the other side of the bracket is fixedly disposed on the heavy-duty rolling stock.

In one example, the interfaces 9 and the indicator lights 10 disposed on the panel 213 are shown in fig. 6. Wherein, the wireless WLAN transmission interface 91 is connected with the wireless transmitter inside the housing, and the 4G transmission interface 92 is connected with the 4G transmitter inside the housing; the Beidou BDS interface 93 is connected with a Beidou positioner in the shell; the power supply control PWR interface 94 is connected to the power supply inside the housing; the ethernet ETH interface 95 is connected to an ethernet transmitter inside the housing; and an RS232 communication interface 96 and an exchanger CONSOLE interface 97 are also arranged on the panel 213.

In order to effectively improve the reliability and real-time performance of data transmission of a heavy-duty rolling stock and further effectively improve the carrying reliability and safety of the heavy-duty rolling stock by the comprehensive application of various wireless communication devices, the present application provides an embodiment of a data wireless transmission method of a heavy-duty rolling stock implemented by using a wireless transmission device of the heavy-duty rolling stock, referring to fig. 7, the data wireless transmission method of the heavy-duty rolling stock of a controller of an execution main body specifically includes the following contents:

step 100: and acquiring the basic state information of each vehicle-mounted device of the heavy-duty rolling stock received by the Ethernet transmitter, and acquiring the dynamic position tracking information of the wireless transmission device received by the locator from the corresponding satellite.

Step 200: and applying the 4G transmitter to send the basic state information and the dynamic position tracking information to the first server, and applying the 4G transmitter to receive a control instruction sent by the first server so as to execute a corresponding preset data monitoring and/or data transmission task according to the control instruction.

In order to further improve the effectiveness and safety of data transmission of the wireless transmission device on the basis of improving the reliability and real-time performance of data transmission of a heavy-duty rolling stock, in an embodiment of the wireless transmission method of a heavy-duty rolling stock of the present application, the method for performing wireless data transmission of a heavy-duty rolling stock by a controller of a main body further includes the following steps:

step 300: and when the heavy-duty rolling stock is positioned in the corresponding station and/or the corresponding vehicle garage, data transmission is carried out between the heavy-duty rolling stock and the station and/or the vehicle garage by using a wireless transmitter, wherein the wireless transmitter is fixedly arranged in the shell and is respectively in communication connection with the processor and the corresponding second server.

In order to further improve the carrying reliability and safety of the heavy-duty rolling stock on the basis of improving the reliability and real-time performance of data transmission of the heavy-duty rolling stock, so that the communication reliability of the wireless transmission device can be effectively ensured even if the heavy-duty rolling stock runs to sections such as mountainous regions, tunnels and the like, in the embodiment of the data wireless transmission method of the heavy-duty rolling stock, the data wireless transmission method of the heavy-duty rolling stock further specifically comprises the following contents:

step 400: if an equipment control instruction of a watchdog device is received, controlling the 4G transmitter and/or the positioner to perform recovery control operation according to the equipment control instruction, wherein the watchdog device is in communication connection with the processor; wherein the resume control operation comprises: at least one of dial-up, power-off restart, reset, turn on flight model, and turn off flight model.

It is understood that the basic status information includes: at least one of speed status information, traction status information, braking status information, axle temperature status information, air conditioning status information, and door status information.

For further explaining the scheme, the application also provides a specific application example of the wireless transmission device of the heavy-duty rolling stock, the wireless transmission device integrates a real-time operating system acquisition technology, a 4G wireless transmission technology, a TRDP Ethernet real-time transmission technology, a Beidou positioning technology and a WLAN wireless local area network technology, carries out real-time dynamic tracking and monitoring on the safety state and the fault condition of the rolling stock, provides remote technical support and fault emergency guidance, and meets the actual application requirement of immediately organizing and maintaining, and the specific application example specifically comprises the following contents:

the information that the locomotive needs to transmit in real time is first summarized into dynamic position tracking information, basic state information and fault information. The dynamic position tracking information mainly comprises the accurate position of the running motor train unit, such as longitude and latitude or line kilometer post; the basic state information mainly includes: safety related information such as speed, traction, braking, shaft temperature and the like, and state information of an air conditioner and a vehicle door and the like; the fault information is mainly the fault event and relevant environmental parameters which are transmitted and obtained on the vehicle-mounted network and is used for supporting the diagnosis, analysis and elimination of the vehicle-mounted fault and locomotive maintenance after the fault occurs.

The wireless transmission device WTD of the heavy-duty rolling stock adopts an integrated machine box design, has a real-time operating system acquisition, a 4G transmission module, a Beidou positioning module and a WLAN wireless transmission module, and has the functions of Ethernet and RS232 serial port communication. Compared with the prior locomotive monitoring equipment, the method and the system have the advantages that multiple advanced technologies such as 4G transmission, Beidou positioning and the like are applied, wherein the real-time performance of vehicle-mounted data acquisition is guaranteed based on a communication mechanism of a TRDP real-time Ethernet transmission protocol; the reliability of vehicle-ground data transmission is guaranteed by a 4G transmission mechanism based on an MQTT protocol. The size of the whole machine is reduced, the installation space is saved, and the power consumption is reduced.

The method aims to enable the locomotive dynamic position tracking information to mainly comprise accurate positions of running motor train units, such as longitude and latitude or line kilometer posts; the basic state information mainly includes: safety related information such as speed, traction, braking, shaft temperature and the like, and state information of an air conditioner and a vehicle door and the like; the fault information is mainly the fault event and relevant environmental parameters which are transmitted and obtained on the vehicle-mounted network and is used for supporting the diagnosis, analysis and elimination of the vehicle-mounted fault and locomotive maintenance after the fault occurs.

According to the working principle of a network control system of a heavy-duty rolling stock, a wireless transmission device collects the state and alarm information on a train WTB/MVB network and the real-time running data of the states of subsystems such as traction, braking, power supply, an air conditioner and a door through a TRDP real-time Ethernet transmission mechanism, and the Beidou module positioning data is integrated, a communication mode based on an MQTT protocol is adopted, the data is sent to a ground server in real time through a 4G network, and if a terminal station or a stock of the heavy-duty rolling stock is covered with WLAN wireless, the process recording data downloading can be realized through the WLAN.

As the actual operating environment of the heavy-duty rolling stock is mostly a mountain tunnel, the train-ground communication signal is intermittent, and the real-time performance of data transmission is shown in fig. 8, the wireless transmission device is additionally provided with a watchdog device 28 for data transmission, and the reset logic control block diagram of the watchdog device 28 is shown in fig. 9, if the processor receives the equipment control instruction of the watchdog device 28, the processor controls the 4G transmitter and/or the positioner to perform recovery control operation according to the equipment control instruction, wherein the watchdog device is in communication connection with the processor; wherein the resume control operation comprises: at least one of dial-up, power-off restart, reset, turn on flight model, and turn off flight model.

The PWR power supply module provides power supply for the CPU module and the CPU function carrier plate, and the definition of pins of the power supply connector refers to Table 1

TABLE 1

Stitch pin	Polarity of channel	Type (B)	Stitch pin	Polarity of channel	Type (B)
						A1	P1	DC110V+	A2	N1	DC110V-

The CPU module is used as a central processing unit of the event recording module and is mainly responsible for scheduling and communication of all software and hardware resources of the control unit and recording event information. The CPU front panel identification interface definition is seen in table 2.

TABLE 2

The panel on the panel of the wireless transmission device is also provided with a plurality of indicator lights which are respectively in one-to-one correspondence with the interfaces, and each indicator light is respectively connected to each device fixedly arranged in the shell in a one-to-one mode. The LED indicator is defined in table 3.

TABLE 3

Serial number	Identification	Description of the invention	Of significance
				1	PWR	LED indicator light	Is electrified and normally on
2	CPU	LED indicator light	Twinkling during normal operation
				3	WLAN	LED indicator light	Ever-off (undefined)
4	4G	LED indicator light	Ever-off (undefined)
				5	BDS	LED indicator light	Location information is always on when it is valid
6	RS232	LED indicator light	Receive serial port data often bright
				7	CONSOLE	LED indicator light	Ever-off (undefined)
8	ETH	LED indicator light	Is always bright when physically connected

The RUT module is a submodule integrated with WLAN, Beidou positioning, 4G wireless AP internet access and other designs, and has the functions of positioning the train position through the Beidou positioning function and feeding relevant information back to the ground service station in real time through a mobile communication network. The purpose of real-time remote monitoring of the train is achieved.

Wherein, the definition of the CPU front panel identification interface refers to the table 4.

TABLE 4

Stitch pin	Identification	Description of the invention	Of significance
				1	WLAN(X1)	BNC (female head)	Wireless WIFI receiving antenna interface
2	4G(X2)	BNC (female head)	4G signal receiving antenna interface
				3	BDS(X3)	BNC (female head)	Beidou antenna interface

The technical conditions of the WTD wireless transmission device are shown in table 5.

TABLE 5

The wireless transmission device can be fixed on the bracket according to the installation size of the wireless transmission device, so that the installation strength is ensured; due to heat dissipation and the need for adequate ventilation, the equipment above and below the wireless transmission device must be maintained at a distance of at least 2 cm; due to the wiring and commissioning requirements in front of the radio transmission device, the equipment in front of the radio transmission device must keep a space of at least 5 cm. The wireless transmission device can only be repaired or replaced by authorized professional maintenance personnel, and the unreasonable maintenance operation can cause personal casualties and property loss. The wireless transmission device needs to consider shockproof, sealing and waterproof during transportation, loading and unloading. The device is prevented from being thrown and thrown away, and the device is prevented from being damaged. The wireless transmission device should be stored in a ventilated and dry place to prevent sun and rain.

According to the above content, the wireless transmission device for the heavy-duty rolling stock provided by the application example of the application example improves the real-time performance of the data acquisition of the rolling stock network by adding a data acquisition mode based on a TRDP protocol; the reliability of vehicle-ground data communication is improved by adding a 4G communication mode based on an MQTT protocol and a watchdog reset mechanism taking a 4G signal as a reference; the accuracy of vehicle positioning is improved by adding a Beidou and GPS dual-mode positioning mechanism; the compact design is adopted, so that the volume of the whole machine is reduced; the power consumption of the whole machine is reduced. Namely, the wireless transmission device of the heavy-duty rolling stock has a reliable structure and high integration degree, can effectively improve the reliability and real-time performance of data transmission of the heavy-duty rolling stock through the comprehensive application of various wireless communication devices, further can effectively improve the carrying reliability and safety of the heavy-duty rolling stock, can also effectively ensure the communication reliability of the heavy-duty rolling stock even if the heavy-duty rolling stock runs to road sections such as mountainous regions and tunnels, and reduces the manufacturing cost.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It can be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. The invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and/or permutation of these aspects and/or embodiments. Moreover, each aspect and/or embodiment of the present invention may be used alone or in combination with one or more other aspects and/or embodiments thereof.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the hardware + program class embodiment, since it is substantially similar to the method embodiment, the description is simple, and the relevant points can be referred to the partial description of the method embodiment.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Although the present application provides method steps as described in an embodiment or flowchart, additional or fewer steps may be included based on conventional or non-inventive efforts. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or client product executes, it may execute sequentially or in parallel (e.g., in the context of parallel processors or multi-threaded processing) according to the embodiments or methods shown in the figures.

Although embodiments of the present description provide method steps as described in embodiments or flowcharts, more or fewer steps may be included based on conventional or non-inventive means. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual apparatus or end product executes, it may execute sequentially or in parallel (e.g., parallel processors or multi-threaded environments, or even distributed data processing environments) according to the method shown in the embodiment or the figures. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.

Claims

1. A wireless transmission device for a heavy-duty rolling stock, comprising: the device comprises a shell arranged on a heavy-duty locomotive vehicle, and a processor, an Ethernet transmitter, a 4G transmitter and a positioner which are respectively and fixedly arranged in the shell;

2. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, characterized by comprising: a power source fixedly disposed within the housing;

3. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, further comprising: a wireless transmitter fixedly disposed within the housing;

4. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, further comprising: a watchdog device fixedly arranged in the shell;

the watchdog device is in communication connection with the processor.

5. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 4, wherein a complex programmable logic device is connected between said watchdog device and said processor.

6. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, wherein said locator comprises: a Beidou locator and/or a GPS locator;

7. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, wherein said first server is disposed in a general control center.

8. The wireless transmission device of a heavy-duty rolling stock according to claim 3, wherein said second server is provided in a station and/or a garage to which said heavy-duty rolling stock corresponds.

9. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, wherein said housing comprises a plastic layer, a conductive oxide layer and an aluminum layer which are sequentially and hermetically covered from outside to inside.

10. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 1, wherein said housing comprises: the device comprises a base, four side plates fixedly arranged on the base and panels arranged at the top ends of the four side plates, wherein a cubic cavity for accommodating each device is formed among the base, the four side plates and the panels;

11. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 10, wherein a plurality of indicator lights are further provided on said panel in one-to-one correspondence with said interfaces, and each of said indicator lights is connected to each of the devices fixedly disposed in said housing in one-to-one correspondence.

12. The wireless transmission device of a heavy-duty locomotive vehicle according to claim 10, wherein the side plates of said housing are fins for heat dissipation.

13. The wireless transmission device of a heavy-duty rolling stock according to any one of claims 1 to 12, wherein said housing is fixedly disposed on one side of a bracket and the other side of the bracket is fixedly disposed on said heavy-duty rolling stock.