Wireless data transmission system of load control terminal for communication signal blind area

Abstract

The invention discloses a wireless data transmission system of a load control terminal for a communication signal blind area. The wireless data transmission system comprises a data collection module, a GPRS (general packet radio service) / CDMA (code division multiple access) communication module and a wireless data transmission module, wherein the data collection module is used for collecting power data and carrying out power monitoring and is composed of a load control terminal device and one to more multifunctional ammeters; the GPRS / CDMA communication module is used for carrying out network communication; and the wireless data transmission module is used for carrying out wireless communication between the load control terminal device and the GPRS / CDMA communication module, and includes a TM module connected with the load control terminal device and a GM module connected with the GPRS / CDMA communication module. The wireless data transmission system disclosed by the invention adopts a mode of combining wireless data transmission with the GPRS / CDMA wireless communication network; and the problem that a signal blind point exists in the network communication is eliminated, and the requirement of data communication of the load control terminal device is met.

Description

technical field [0001] The invention relates to a data transmission system, in particular to a wireless data transmission system applied to a load control terminal working in a mobile communication signal blind area. Background technique [0002] The smart grid is to combine the latest information technology, communication technology, computer control technology with the original transmission and distribution infrastructure to form a new type of power grid and realize the intelligence of the power system. The establishment of a high-speed, two-way, real-time, and integrated communication system is the basis for the realization of the smart grid, and the construction of a communication network that can comprehensively monitor the electricity consumption of the power consumption unit is the foundation of the smart grid construction. From a technical point of view, the current communication network system for electricity consumption monitoring of power consumption units can be ...

AI Technical Summary

Problems solved by technology

However, the current power carrier communication has obvious deficiencies: mainly manifested as high noise, low impedance, large loss, large fluctuation, and susceptibility to external interference

[0013] However, GPRS / CDMA communication methods also have some limitations. For example, in basements or relatively remote areas, such as valleys where small hydropower stations are located, there are often no mobile communication signals or mobile communication signals are not stable enough to directly use GPRS / CDMA communication. The negative control terminal equipment of the module monitors and manages the power consumption of the power consumption unit

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