Method for realizing air update of vehicle terminal

A vehicle-mounted terminal and over-the-air upgrade technology, applied in transmission systems, electrical components, wireless communications, etc., to achieve reliable over-the-air upgrades

Inactive Publication Date: 2010-10-20
SHENZHEN SEG SCI NAVIGATIONS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for over-the-air upgrade of a vehicle-mounted terminal based on a mobile communication network in view of the disadvantage that the vehicle-mounted terminal and peripherals in the existing system must be disassembled on site if real-time software updates are required

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  • Method for realizing air update of vehicle terminal
  • Method for realizing air update of vehicle terminal
  • Method for realizing air update of vehicle terminal

Examples

Experimental program
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Embodiment Construction

[0027] Such as figure 1 As shown in , which shows the overall flow chart for realizing the over-the-air upgrade of the vehicle terminal. The process will be described in detail below:

[0028] The vehicle-mounted terminal is provided with a mobile communication module, and in this embodiment, a GPRS communication module is used. In order not to affect the normal work between it and the remote control center during the upgrade, two IP addresses and corresponding port numbers are specially set.

[0029] First, it sends a login request to the remote control center through the first wireless link corresponding to the first IP address. The vehicle-mounted terminal then receives the login success response message with the second IP address and port parameters, and sets the IP address and port number for remote upgrade file download according to the second IP address and port parameters. Then receive an upgrade instruction from the remote control center, and use the second wireles...

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Abstract

The invention provides a method for realizing the air update of a vehicle terminal, which comprises the steps of sending a login request to a remote control center via a first radio link corresponding to a first IP address; receiving a successful login response message with a second IP address and port parameters and setting the IP address and port number used for downloading remote update files according to the second IP address and the port parameters; receiving the update instruction of the remote control center, and utilizing a second radio link corresponding to the second IP address to log in the remote update center according to the update instruction; sending an update request instruction; sending a packet request instruction; receiving a packet corresponding to the serial number; progressively increasing one unit for the serial number of the packet until the last packet is received, then sending a successful update message to the remote update center and the remote control center, and ending treatment. The invention is based on a mobile communication network and a GPRS communication technology, so the air update of vehicle terminal software can be realized conveniently, quickly and reliably.

Description

technical field [0001] The present invention relates to wireless data transmission, in particular to a method for using wireless data transmission to realize over-the-air upgrade of vehicle-mounted terminals. Background technique [0002] GPRS is the abbreviation of General Packet Radio Service (General Packet Radio Service), which is a mobile data service available to GSM mobile phone users. It is often described as "2.5G", which means that the technology sits between the second generation (2G) and third generation (3G) of mobile communication technology. It provides medium-speed data transmission by utilizing unused TDMA channels in the GSM network. GPRS breaks through the way of thinking that the GSM network can only provide circuit switching, and realizes packet switching only by adding corresponding functional entities and partially transforming the existing base station system. The investment in this transformation is relatively small, but it is obtained The user dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/24H04L29/06H04W24/02
Inventor 夏明辉
Owner SHENZHEN SEG SCI NAVIGATIONS CO LTD
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