CN110519791B - Vehicle-mounted wireless terminal device, system and method - Google Patents
Vehicle-mounted wireless terminal device, system and method Download PDFInfo
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- CN110519791B CN110519791B CN201910831659.4A CN201910831659A CN110519791B CN 110519791 B CN110519791 B CN 110519791B CN 201910831659 A CN201910831659 A CN 201910831659A CN 110519791 B CN110519791 B CN 110519791B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a vehicle-mounted wireless terminal device, a system and a method for improving the online rate of a rail transit wireless terminal. The technical proposal is as follows: the vehicle-mounted wireless terminal device adopts a double-set wireless module design, and overcomes the defect of wire dropping caused by limited coverage range of a single operator base station. Meanwhile, seamless switching is realized by adopting a hot standby soft switching mode, so that the online rate of the wireless transmission device is obviously and greatly improved, and the user experience is greatly enhanced.
Description
Technical Field
The invention relates to a track traffic vehicle-mounted wireless communication technology, in particular to a vehicle-mounted wireless terminal device, a system and a method for improving the online rate of a train wireless terminal.
Background
At present, three public network base stations of mobile, telecom and Unicom are arranged along the railway, and any operator cannot effectively cover each intersection of the railway. Most rail transit vehicle-ground wireless data transmission devices only access one operator, but are limited by the existing single operator base station, often drop lines, and lose links with remote servers. The updating period of the client interface information is prolonged, and the experience of the terminal user is affected.
Disclosure of Invention
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The invention aims to solve the problems and provide a vehicle-mounted wireless terminal device, a system and a method for improving the online rate of a rail transit wireless terminal, which can greatly improve the online rate of a locomotive wireless terminal and improve the user experience by a redundancy hot standby soft switching mode.
The technical scheme of the invention is as follows: the invention discloses a vehicle-mounted wireless terminal device for improving the online rate of a rail transit wireless terminal, which is respectively connected into a first network and a second network by adopting a double-set redundancy architecture and is used for establishing an antenna feed radio frequency communication physical link and controlling signal detection and network access, wherein the vehicle-mounted wireless terminal device comprises a real-time signal detection module, an automatic dialing module and a routing gateway module, the output end of the real-time signal detection module is respectively connected with the automatic dialing module and the routing gateway module, and the input end of the routing gateway module is respectively connected with the real-time signal detection module and the automatic dialing module, wherein:
the real-time signal detection module is used for detecting the dialing environment in real time;
the automatic dialing module is used for detecting network state, performing AT instruction dialing and acquiring automatic IP;
and the routing gateway module is used for routing judgment, gateway and domain name resolution setting.
According to the embodiment of the vehicle-mounted wireless terminal device for improving the linear rate of the rail transit wireless terminal, the vehicle-mounted wireless terminal device adopts a hot standby soft switching mechanism to realize switching between the first network and the second network.
According to an embodiment of the vehicle-mounted wireless terminal device for improving the linear rate of the rail transit wireless terminal, the real-time signal detection module comprises a SIM card detection unit and a radio frequency signal intensity detection unit, wherein:
the SIM card detection unit is used for respectively sending an instruction for detecting the state of the SIM card to the communication interfaces of the first full-network communication module and the second full-network communication module, and determining whether the state of the SIM card is normal or not according to the received feedback information of state detection;
the radio frequency signal intensity detection unit is used for respectively sending an instruction for detecting the network signal intensity to the communication interfaces of the first full-network communication module and the second full-network communication module, and determining the network signal intensity according to the feedback information of the received signal intensity.
According to an embodiment of the vehicle-mounted wireless terminal device for improving the linear rate of the rail transit wireless terminal, the automatic dialing module comprises a network state detection unit, a dialing unit and an automatic IP address acquisition unit, wherein:
the network state detection unit is used for sending an instruction for inquiring the network registration state to the communication interfaces of the first full-network communication module and the second full-network communication module, and determining whether the SIM card is successfully registered, is accessed to the wireless network where the SIM card attribute is located or not and has the condition of accessing to the wireless public network according to the result of the instruction inquiry feedback;
the dialing unit is used for determining whether the dialing is successful or not according to the feedback result by sending a dialing instruction to the first full-network communication module and the second full-network communication module by adopting an NDIS dialing mode;
the automatic IP address acquisition unit is used for automatically acquiring the IP address of the remote server, successfully accessing the remote server and acquiring an Internet communication link.
According to an embodiment of the vehicle-mounted wireless terminal device for improving the online rate of the rail transit wireless terminal, the routing gateway module comprises a routing gateway unit and a domain name resolution setting unit, wherein:
the routing gateway unit is used for selecting the full-network communication module with high signal quality as a current communication network and processing a DNS analysis server;
and the domain name resolution setting unit is used for carrying out default route configuration in advance.
The invention also discloses a vehicle-mounted wireless terminal system for improving the online rate of the rail transit wireless terminal, the vehicle-mounted wireless terminal system comprises a processor, a first full-network communication module, a second full-network communication module, a power divider and a vehicle-mounted antenna, the processor respectively establishes data connection with the first full-network communication module and the second full-network communication module through two paths of communication interfaces, the radio frequency signal output ports of the first full-network communication module and the second full-network communication module are electrically connected to the power divider, the radio frequency signal output port of the power divider is electrically connected to the vehicle-mounted antenna, wherein:
the processor is configured to be the vehicle-mounted wireless terminal device and is used for controlling data receiving and transmitting of the vehicle-mounted wireless terminal and maintaining a communication link, and equipment enumeration is automatically carried out when the first full-network communication module or the second full-network communication module is accessed to generate equipment nodes;
the first full-network communication module and the second full-network communication module are both used for accessing the base station and automatically matching with the communication mode of an operator to provide a physical channel for remote data communication;
and the power divider is used for providing a radio frequency channel for the vehicle-mounted wireless terminal.
The invention also discloses a method for improving the online rate of the rail transit wireless terminal, which is realized on the vehicle-mounted wireless terminal system, and comprises the following steps:
step 1: the method comprises the steps that a SIM card detection unit in a real-time signal detection module respectively sends an instruction for detecting the state of the SIM card to communication interfaces of a first full-network communication module and a second full-network communication module in a vehicle-mounted wireless terminal, feedback information of state detection is received to detect whether the SIM card is in a normal state, and then a radio frequency signal intensity detection unit in the real-time signal detection module respectively sends an instruction for detecting the signal intensity of a network to the communication interfaces of the first full-network communication module and the second full-network communication module, and feedback information of the signal intensity is received;
step 2: the network state detection unit in the automatic dialing module sends an instruction for inquiring the network registration state to the communication interfaces of the first full-network communication module and the second full-network communication module, judges whether the SIM card is successfully registered according to the inquiry result, whether the SIM card is accessed to a wireless network where the attribute of the SIM card is located and has the condition of accessing to a wireless public network, then dials by sending dialing instructions to the first full-network communication module and the second full-network communication module respectively through the dialing unit in the automatic dialing module in an NDIS dialing mode, automatically acquires the IP address of a remote server through the automatic acquisition IP address unit in the automatic dialing module after time delay, and accesses the remote server to acquire an Internet communication link;
step 3: and selecting one of the full-network communication modules with high signal quality as a current communication network through a routing gateway unit of the routing gateway module, and processing the DNS analysis server.
Compared with the prior art, the invention has the following beneficial effects: the device utilizes the coverage characteristics of the base stations along the railway, and the vehicle-mounted wireless terminal adopts a double-set wireless module design, so that the defect of wire dropping caused by limited coverage of the base stations of a single operator is overcome. Meanwhile, a hot standby soft switching mode is adopted to realize seamless switching, so that the online rate of the wireless transmission device is obviously and greatly improved, and the user experience is greatly enhanced. Compared with the prior art, the method solves the problem of frequent disconnection and provides customer satisfaction; the hot standby redundancy mode is adopted, so that the network is switched seamlessly, the number of dropped lines of the device is greatly reduced, and the experience of a user is greatly improved; the invention greatly improves the vehicle-ground data transmission efficiency by improving the linear rate and promotes the vigorous development of informatization of the vehicle-mounted equipment of the rail transit.
Drawings
The above features and advantages of the present invention will be better understood after reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily to scale and components having similar related features or characteristics may have the same or similar reference numerals.
Fig. 1 shows a functional block diagram of an embodiment of an in-vehicle wireless terminal apparatus of the present invention that improves the online rate of a rail transit wireless terminal.
Fig. 2 is a system diagram showing an embodiment of the vehicle-mounted wireless terminal system for improving the line rate of the rail transit wireless terminal according to the present invention.
Fig. 3 shows a flowchart of the overall operation of an embodiment of the vehicle-mounted wireless terminal system for improving the online rate of the rail transit wireless terminal according to the present invention, that is, a flowchart of an embodiment of a method for improving the online rate of the rail transit wireless terminal.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments. It is noted that the aspects described below in connection with the drawings and the specific embodiments are merely exemplary and should not be construed as limiting the scope of the invention in any way.
As shown in fig. 1, an embodiment of an in-vehicle wireless terminal device for improving the linear rate of a rail transit wireless terminal of the present invention includes: the system comprises a real-time signal detection module, an automatic dialing module and a routing gateway module.
The real-time signal detection module, the automatic dialing module and the routing gateway module are all installed in the vehicle-mounted wireless terminal device. The output end of the real-time signal detection module is respectively connected with the automatic dialing module and the routing gateway module, and the input end of the routing gateway module is respectively connected with the real-time signal detection module and the automatic dialing module.
The vehicle-mounted wireless terminal device is used for establishing an antenna feed radio frequency communication physical link and controlling signal detection and network access. The real-time signal detection module is used for detecting the dialing environment in real time. The automatic dialing module is used for detecting network state, and AT instruction dialing and automatic IP acquisition. The routing gateway module is used for routing decision and gateway and domain name resolution setting.
The real-time signal detection module comprises a SIM card detection unit and a radio frequency signal intensity detection unit.
The SIM card detection unit respectively sends an instruction for detecting the state of the SIM card to the communication interfaces of the two all-network communication modules, and receives feedback information of state detection. For example, send at+cpin? And the instruction detects the state of the SIM card and returns +CPIN to READY, which indicates that the SIM card is normal.
The radio frequency signal intensity detection unit respectively sends instructions for detecting the network signal intensity to the communication interfaces of the two all-network communication modules, and receives feedback information of the signal intensity. For example, send at+csq? The command examines the network signal strength and returns +csq, 99, e.g., between 10 and 31, with a larger value indicating better signal quality. The routing gateway module selects a high signal quality as the current communication network.
The automatic dialing module comprises: the system comprises a network state detection unit, a dialing unit and an automatic IP address acquisition unit.
The automatic dialing module is configured to process: firstly, the network state detection unit sends AT+CREG instructions to the communication interfaces of the two all-network communication modules to inquire the network registration state, returns to 5 to indicate that the registration is successful, and has access to the wireless network where the SIM card attribute is located, thereby having the condition of accessing the wireless public network. Then, the dialing unit adopts an NDIS dialing mode, and sends a dialing AT command qcrmcall=1, 1 to the full network communication module to return a $ qcrmcall:1, v4 result to indicate that the dialing is successful. After time delay, automatically acquiring the IP address of the remote server through an automatic IP address acquisition unit, for example, an instruction udhcpc-i wwan0 acquires the IP address of the remote server; if the network access request is correctly acquired, the network access request is successfully accessed to an operator server to acquire an internet communication link. And when the signal intensity, the column network and other parameters of the two full-network communication modules meet the access requirements, automatically entering a dialing process, and waiting for the selection of the routing gateway module.
The routing gateway module comprises: a routing gateway unit and a domain name resolution setting unit. The routing gateway unit is used for selecting a full-network communication module with high signal quality as a current communication network and processing the DNS analysis server. With two access internet links, the domain name resolution setting unit is required to perform default route configuration in advance: the default gateway is that packets may flow to a specified address without matching any set routing rules. The setting is by route add default gw xx.xx.xx. Xx SHELL command, such as route add default gw 10.212.18.13. 10.212.18.13 is the IP assigned by the DHCP acquired operator server. And updating the address of the domain name server by revising the DNS domain name configuration file vim/etc/resolv.conf, wherein the added DNS domain name address is the DNS allocated to the operator server acquired by the DHCP. The IP distributed by the Ping operator server is ordered through the operation system, if no overtime phenomenon occurs, the link connection is indicated to be normal; running the system command Ping www.baidu.com indicates that DNS resolution is normal if no timeout occurs.
As shown in fig. 2, the embodiment of the vehicle-mounted wireless terminal system for improving the online rate of the rail transit wireless terminal adopts a double-set redundancy architecture, and is respectively connected to a first network and a second network. In this embodiment, the first network is a mobile network and the second network is a telecommunications network. The vehicle-mounted wireless terminal adopts a hot standby soft switching mechanism to realize switching between a first network (mobile network) and a second network (telecommunication network), and when signals exist in both the mobile network and the telecommunication network, the current network is determined by the signal quality detected by the real-time signal detection module. When one party drops the line because of insufficient signal strength, the vehicle-mounted wireless terminal automatically accesses the candidate on-line link, the dropped network automatically circulates to enter a dialing process, and the dialing process is judged by a standby waiting monitoring program to be called.
The vehicle-mounted wireless terminal system comprises a processor, a first full-network communication module, a second full-network communication module, a power divider and a vehicle-mounted antenna. Wherein the processor establishes a data connection with the first full network communication module and the second full network communication module via two communication interfaces, typically USB data interfaces. The radio frequency signal output ports of the first full-network communication module and the second full-network communication module are electrically connected to the power divider. The radio frequency signal output port (e.g., coaxial cable) of the power divider is electrically connected to the vehicle antenna.
The function implementation of the processor configuration is as shown in the embodiment of fig. 1, that is, the function implementation is used for controlling data transceiving and maintaining a link, and device enumeration is automatically performed when the first full-network module or the second full-network module is accessed, so as to generate a ttyUSB device node. The first/second full network communication module is used for accessing the public network base station of the operator, automatically matching with the communication mode (such as 5G/4G/3G/2G) of the operator, and providing a physical channel for remote data communication. The power divider adopts a two-power divider (namely two-in and one-out), and is connected to the vehicle-mounted antenna through a coaxial cable to provide a radio frequency channel for the vehicle-mounted wireless terminal.
Fig. 3 is a flowchart illustrating an overall operation of an embodiment of the vehicle-mounted wireless terminal system for improving the online rate of the rail transit wireless terminal according to the present invention, that is, an embodiment of a method for improving the online rate of the rail transit wireless terminal. Referring to fig. 3, the following is a detailed description of the implementation steps of the method of the present embodiment.
First is the processing of the real-time signal detection module. The SIM card detection unit respectively sends an instruction for detecting the state of the SIM card to the communication interfaces of the two all-network communication modules, and receives feedback information of state detection so as to detect whether the SIM card is in a normal state or not. Then, the radio frequency signal intensity detection unit respectively sends instructions for detecting the network signal intensity to the communication interfaces of the two all-network communication modules, and receives feedback information of the signal intensity.
Then the processing of the automatic dialing module. The network state detection unit sends AT+CREG instructions to the communication interfaces of the two full-network communication modules to inquire the network registration state, judges whether the registration is successful or not according to the inquiry result, and whether the wireless network (mobile network or telecommunication network) with the SIM card attribute is accessed or not and has the condition of accessing the wireless public network. Then, the dialing unit adopts an NDIS dialing mode, and dials by respectively sending dialing AT instructions to the two all-network communication modules. After the delay, the IP address unit automatically acquires the IP address of a remote server (DHCP server) of the operator, and accesses the DHCP server to acquire an Internet communication link.
And finally, the processing of the routing gateway module. Firstly, a full-network communication module with high signal quality is selected as a current communication network through a routing gateway unit, and then the DNS analysis server is processed.
While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood and appreciated by those skilled in the art.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The various illustrative logical blocks, modules, and circuits described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
In one or more exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software as a computer program product, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a web site, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk (disk) and disc (disk) as used herein include Compact Disc (CD), laser disc, optical disc, digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks (disk) usually reproduce data magnetically, while discs (disk) reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The vehicle-mounted wireless terminal device is characterized in that the vehicle-mounted wireless terminal device is connected into a first network and a second network respectively by adopting a double-set redundancy architecture and is used for establishing an antenna feed radio frequency communication physical link and controlling signal detection and network access, wherein the vehicle-mounted wireless terminal device comprises a real-time signal detection module, an automatic dialing module and a routing gateway module, the output end of the real-time signal detection module is connected with the automatic dialing module and the routing gateway module respectively, and the input end of the routing gateway module is connected with the real-time signal detection module and the automatic dialing module respectively, wherein:
the real-time signal detection module is used for detecting the dialing environment in real time;
the automatic dialing module is used for detecting network state, performing AT instruction dialing and acquiring automatic IP;
the routing gateway module is used for routing judgment, gateway and domain name resolution setting;
the real-time signal detection module comprises a SIM card detection unit and a radio frequency signal intensity detection unit, wherein:
the SIM card detection unit is used for respectively sending an instruction for detecting the state of the SIM card to the communication interfaces of the first full-network communication module and the second full-network communication module, and determining whether the state of the SIM card is normal or not according to the received feedback information of state detection;
the radio frequency signal intensity detection unit is used for respectively sending an instruction for detecting the network signal intensity to the communication interfaces of the first full-network communication module and the second full-network communication module, and determining the network signal intensity according to the feedback information of the received signal intensity;
the automatic dialing module comprises a network state detection unit, a dialing unit and an automatic IP address acquisition unit, wherein:
the network state detection unit is used for sending an instruction for inquiring the network registration state to the communication interfaces of the first full-network communication module and the second full-network communication module, and determining whether the SIM card is successfully registered, is accessed to the wireless network where the SIM card attribute is located or not and has the condition of accessing to the wireless public network according to the result of the instruction inquiry feedback;
the dialing unit is used for determining whether the dialing is successful or not according to the feedback result by sending a dialing instruction to the first full-network communication module and the second full-network communication module by adopting an NDIS dialing mode;
the automatic IP address acquisition unit is used for automatically acquiring the IP address of the remote server, successfully accessing the remote server and acquiring an Internet communication link.
2. The vehicle-mounted wireless terminal device for improving the online rate of a rail transit wireless terminal according to claim 1, wherein the vehicle-mounted wireless terminal device adopts a hot standby soft handover mechanism to realize handover between the first network and the second network.
3. The vehicle-mounted wireless terminal device for improving the online rate of a rail transit wireless terminal according to claim 1, wherein the routing gateway module comprises a routing gateway unit and a domain name resolution setting unit, wherein:
the routing gateway unit is used for selecting the full-network communication module with high signal quality as a current communication network and processing a DNS analysis server;
and the domain name resolution setting unit is used for carrying out default route configuration in advance.
4. The utility model provides a promote on-vehicle wireless terminal system of track traffic wireless terminal online rate, a serial communication port, on-vehicle wireless terminal system constitution includes the treater, first full network leads to the module, the full network of second leads to the module, power divider and vehicle antenna, the treater establishes data connection respectively through two way communication interface and first full network leads to the module, the full network of second leads to the module, the radio frequency signal delivery outlet of the full network of first full network leads to the module and the full network of second leads to the module is connected to the power divider, the radio frequency signal delivery outlet of power divider is connected to vehicle antenna electricity, wherein:
a processor configured as the vehicle-mounted wireless terminal device according to any one of claims 1 to 3, for controlling data transmission and reception of the vehicle-mounted wireless terminal and maintaining a communication link, and automatically performing device enumeration when the first full-network module or the second full-network module is accessed, to generate a device node;
the first full-network communication module and the second full-network communication module are both used for accessing the base station and automatically matching with the communication mode of an operator to provide a physical channel for remote data communication;
and the power divider is used for providing a radio frequency channel for the vehicle-mounted wireless terminal.
5. A method for improving the online rate of a rail transit wireless terminal, the method being implemented on the vehicle-mounted wireless terminal system according to claim 4, the method comprising:
step 1: the method comprises the steps that a SIM card detection unit in a real-time signal detection module respectively sends an instruction for detecting the state of the SIM card to communication interfaces of a first full-network communication module and a second full-network communication module in a vehicle-mounted wireless terminal, feedback information of state detection is received to detect whether the SIM card is in a normal state, and then a radio frequency signal intensity detection unit in the real-time signal detection module respectively sends an instruction for detecting the signal intensity of a network to the communication interfaces of the first full-network communication module and the second full-network communication module, and feedback information of the signal intensity is received;
step 2: the network state detection unit in the automatic dialing module sends an instruction for inquiring the network registration state to the communication interfaces of the first full-network communication module and the second full-network communication module, judges whether the SIM card is successfully registered according to the inquiry result, whether the SIM card is accessed to a wireless network where the attribute of the SIM card is located and has the condition of accessing to a wireless public network, then dials by sending dialing instructions to the first full-network communication module and the second full-network communication module respectively through the dialing unit in the automatic dialing module in an NDIS dialing mode, automatically acquires the IP address of a remote server through the automatic acquisition IP address unit in the automatic dialing module after time delay, and accesses the remote server to acquire an Internet communication link;
step 3: and selecting one of the full-network communication modules with high signal quality as a current communication network through a routing gateway unit of the routing gateway module, and processing the DNS analysis server.
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