Terminal self-adaptive data transmission system and method for Internet of Vehicles service

Abstract

The invention relates to a terminal self-adaptive data transmission system and method for an Internet of Vehicles service. The method comprises the following steps that a mobile terminal is started and sets link addresses of various data channels of a processing server end, and loop sequence orders of the data channels between the mobile terminal and the processing server; the processing server is in communication with the mobile terminal through the current data channel; if the current data channel cannot meet the communication requirement, whether a communication fault exists between the mobile terminal and the processing server is judged, if yes, the mobile terminal judges which data channel meets the communication requirement according to the preset data channel changing conditions, and the current data channel which cannot meet the communication requirement is switched to the data channel which meets the communication requirement. The terminal self-adaptive data transmission system and method for the Internet of Vehicles service can achieve real-time switch of the data channels.

Description

technical field [0001] The present invention relates to a terminal adaptive data transmission system and method for Internet of Vehicles services, in particular to a terminal adaptive data transmission system and method for distributed Internet of Vehicles services. Background technique [0002] The way and process of Internet of Vehicles service is realized through the communication between the mobile terminal and the service platform. Common communication methods include: voice call, data transmission through voice data channel, SMS transmission and IP data transmission. Each communication method has its own Different application environments and defects corresponding to non-adaptive environments, for example, the DTMF method of voice data channel transmission data, its disadvantage is that there are fewer character types to be transmitted, which is suitable for occasions with fewer character types; while the mobile communication network-based Such as short messages and IP...

AI Technical Summary

Problems solved by technology

[0002] The way and process of Internet of Vehicles service is realized through the communication between the mobile terminal and the service platform. Common communication methods include: voice call, data transmission through voice data channel, SMS transmission and IP data transmission. Each communication method has its own Different application environments and defects corresponding to non-adaptive environments, for example, the DTMF method of voice data channel transmission data, its disadvantage is that there are fewer character types to be transmitted, which is suitable for occasions with fewer character types; while the mobile communication network-based Such as short messages and IP data are easily affected by the wireless transmission environment, especially in the adjacent and cross areas of wireless coverage of different base stations, information transmission will not be smooth, resulting in unstable and unreliable information channels

Therefore, it is difficult to meet the needs of different communication environments with a single terminal data channel

[0003] On this basis, the Chinese invention patent "A Dual-channel Instruction Receiving Method for Vehicle Navigator", application publication number: CN102333286A, this patent document relates to a dual-channel instruction receiving method for in-vehicle navigator, which aims to overcome the existing technology The disadvantages of using a single channel to send instructions are that the instructions cannot be received or the receiving cost is high, and there is a delay. After the car navigator establishes a communication connection with the call center server, the call center judges whether the network of the car navigator is unblocked; if it is judged to be Yes, use the GPRS data channel to send the command to the car navigator; if it judges no, use the information channel to send the command to the car navigator in the form of a short message; the way to judge whether the network is smooth is to send the car navigator to the car navigator every 5 seconds. The call center server sends a query packet; the call center server judges whether the network is unblocked within 15 seconds

The service center server can only choose one option, the system decides on its own, and the information transmission channel cannot be selected manually or according to the preset order

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