Access gateway device for global position system (GPS) device

A technology for GPS devices and access gateways, applied in network connections, electrical components, transmission systems, etc., can solve problems such as poor communication stability and inefficient communication modes, and achieve stable operation, convenient unified management, and convenient addition and modification Effect

CN102594736AInactive Publication Date: 2012-07-18ZHEJIANG UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

An access gateway device for a GPS device comprises a thread pool module, wherein the thread pool module is connected with a transmission control protocol (TCP) communication module, a session initiation protocol (SIP) communication module and a protocol conversion module; the TCP communication module is used for communicating with the GPS device through a TCP; the SIP module is used for data communication with a server through a SIP+XML protocol; and the protocol conversion module is used for completing interconversion of TCP data and SIP+XML protocol data. The access gateway device for the GPS device is capable of improving the communication mode of the GPS, associating the GPS device with the SIP system, establishing an application layer protocol to perform uniform management of different types of data, and maintaining good communication stability.
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Description

Technical field

[0001] The invention relates to a protocol conversion device in the field of network technology, and is a GPS device access gateway device. Background technique

[0002] The data transmission method of the existing GPS system is simple. The TCP protocol is usually used to upload the positioning data obtained by the GPS module to the server. The data is not processed and the communication method is not managed. It is simple and easy, but it is easy to implement in vehicle positioning, video collection, audio In large frameworks such as video recording, this is not conducive to integration with other data, causing inconvenience in managing multiple data. Audio and video data usually also have their own applicable communication protocols, such as RTP, etc., which results in the coexistence of data of multiple protocols within the same framework, which urgently needs an application layer protocol to manage data indiscriminately. The SIP protocol was formulated by the...

Examples

Embodiment Construction

[0027] The present invention will be further described below in conjunction with the drawings.

[0028] Reference Figure 1 ~ Figure 5 , A GPS device access gateway device. The bottom layer of the access gateway device is a thread pool module that implements task scheduling. This module controls the TCP communication module, the SIP communication module and the protocol conversion module to realize the entire access gateway device function. The communication between the server and the access gateway device is through the TCP communication module, and the GPRS network is used to interact, using the SIP+TCP protocol; the access gateway device and the GPS device are connected through the TCP communication module through the TCP communication module. The data communication between the access gateway device and the server adopts the SIP+XML protocol, the data communication between the access gateway device and the GPS device adopts ordinary binary data, which is encapsulated in the TC...