Wireless data transmission method, device and system based on code division multiple access (CDMA) or general packet radio service (GPRS) wireless public network

Abstract

The invention discloses a wireless data transmission method, a wireless data transmission device and a wireless data transmission system based on a code division multiple access (CDMA) or general packet radio service (GPRS) wireless public network. According to the method, two communication parties are an equipment unit and a server unit, the two communication parties comprise CDMA or GPRS wireless communication modules, and the method comprises the following steps that: the server unit dials to access the wireless public network to acquire an internet protocol (IP) address of the public network during communication and serves as a server to establish Socket and enter an interception state; the server unit transmits a short message containing the IP address of the public network to the equipment unit; the equipment unit serves as a Client to connect the Socket established by the server unit after the short message is received; and data communication is performed in a wireless internet access mode so as to realize the wireless data transmission function after the connection is successful. Due to the mode of establishing a communication channel and performing wireless data transmission by combining the short message and the wireless internet access, the problem that the conventional data transmission module depends on the IP address of the fixed public network is solved, a dynamic domain name connecting mode of a domain name resolution service provider is not required, the flexibility of the data transmission system is improved, and the reliability of the data communication is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of information processing, in particular to a wireless data transmission method, device and system based on a CDMA or GPRS wireless public network. Background technique [0002] Wireless communication technology is increasingly showing its important role in industrial control and production and life, especially in distributed control and monitoring systems with large geographical spans and uncertain numbers of nodes, wireless communication methods are more applicable than wired methods and scalability. At present, the wireless data communication technologies used in the distributed monitoring system mainly include communication technologies based on wireless data transmission stations, communication technologies based on high-frequency transceiver systems, communication technologies based on synchronous satellites, and communication technologies based on CDMA / GPRS. Among them, the communication tech...

AI Technical Summary

Problems solved by technology

However, due to the fact that the public IP addresses of IPv4 have been basically used up, and the IPv6 protocol has not yet been popularized on most modules, it has brought a lot of problems

Another way is to use a dynamic domain name, that is, the data transmission module accesses the server through a dynamic domain name, and uses a third-party domain name resolution service provider such as Peanut Shell to resolve the domain name into the IP address of the server. A fixed IP address is stored in the data transmission module, but the server host is still required to be directly accessible on the public network. In fact, the server is also required to have an independently accessible IP address, which cannot be satisfied in many applications

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