Data communication method and system

Abstract

The invention belongs to the technical field of electronic communication, and provides a data communication method and system. The method comprises the following steps: when a mobile terminal needs to be controlled, a cloud server transmits a request command to command center equipment; the command center equipment performs voice dialing to a corresponding mobile terminal according to an equipment number after receiving the request command; the mobile terminal starts a data communication mode after receiving a voice dialing request, and establishes network connection with the cloud server; the mobile terminal transmits a synchronizing request to the cloud server; the cloud server performs command and data interaction with the mobile terminal after receiving the synchronizing request. The mobile terminal closes the data communication mode under general situations, dialing is performed on the mobile terminal through the command center equipment when the cloud server needs to perform data interaction on the mobile equipment, the mobile terminal is awakened and enters the data communication mode, and network connection is established, thereby fulfilling the aim of lowering the power consumption of equipment.

Description

technical field [0001] The invention belongs to the technical field of electronic communication, and in particular relates to a data communication method and system. Background technique [0002] Early wired and wireless telephones used the voice dialing system to realize command control or data communication. First perform voice dialing, and after the voice connection is successful, use DTMF (Dual Tone Multi-Frequency) signal to transmit the voice signal; then add and decode the voice signal to form a data stream. This voice communication method occupies network resources, and the communication cost is relatively high. Later, the wireless SMS communication method appeared. SMS communication will generate SMS fees, which are expensive. Moreover, when the communication data packet is too large or the network resources are tense, it is easy to be blocked, resulting in data communication delay. Now, 2G, 3G or 4G data communication methods are mainly used, such as GPRS / EDGE / EV...

AI Technical Summary

Problems solved by technology

Later, the wireless SMS communication method appeared. SMS communication will generate SMS fees, which are expensive, and when the communication data packet is too large or the network resources are tight, it is prone to congestion, resulting in data communication delays

Now, 2G, 3G or 4G data communication methods are mainly used, such as GPRS / EDGE / EVDO / CDMA / WCDMA / TD-SCDMA / LTE and other data communication methods. This method has good real-time performance, high speed, and low unit communication cost. etc.; after the data communication connection is successful, the connection must be maintained at all times, otherwise the connection between the cloud server and the mobile terminal will be lost, and the cloud server will not be able to actively connect to the mobile terminal, and data and command interactions will not be possible. Keeping the connection status in real time will lead to excessive power consumption of mobile terminal equipment and increase the burden on the system

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