230MHz Mobitex master-slave redundancy wireless data terminal special for electric power

Abstract

The invention relates to the technical field of electric power wireless data terminals, in particular to a 230MHz Mobitex master-slave redundancy wireless data terminal special for electric power. The wireless data terminal is characterized by comprising an advanced RISC (reduced instruction set computer) machines (ARM) main processor, a first baseband processing digital signal processor (DSP) chip, a second baseband processing DSP chip, a first radio frequency modem, a second radio frequency modem, a channel selection unit, a transmitting module, a receiving module and an MIMO2*2 antenna, wherein the ARM main processor, the first baseband processing DSP chip and the second baseband processing DSP chip form a master-slave structure, and the first baseband processing DSP chip and the second baseband processing DSP chip backup each other. Compared with the prior art, the 230MHz Mobitex master-slave redundancy wireless data terminal has the advantage that: based on a Mobitex open protocol stack and existing 230MHz frequency band resources of an electric power system, the 230MHz Mobitex master-slave redundancy wireless data terminal is favorable for upgrading and reconstructing the existing 230MHz data radio station and an 800MHz Mobitex wireless communication system of the electric power system.

Description

technical field [0001] The invention relates to the technical field of electric power wireless data terminals, in particular to a 230MHz Mobitex master-slave redundant wireless data terminal dedicated to electric power. Background technique [0002] At present, the wireless communication frequency used by my country's power load management system is in the 223-231MHz frequency band. The power load management system has built a communication network covering most of the country in this frequency band. However, due to the inherent shortcomings of the 230MHz data transmission station itself, the network has no The intelligent network management function can only adopt the master station calling and polling communication methods, the communication rate is low, and the network capacity is limited, resulting in low frequency and efficiency of use. [0003] Mobitex is a wireless narrowband cellular network technology jointly developed by Ericsson and other companies for enterprise d...

AI Technical Summary

Problems solved by technology

[0002] At present, the wireless communication frequency used by my country's power load management system is in the 223-231MHz frequency band. The power load management system has built a communication network covering most of the country in this frequency band. However, due to the inherent shortcomings of the 230MHz data transmission station itself, the network has no The intelligent network management function can only adopt the master station calling and polling communication methods, the communication rate is low, and the network capacity is limited, resulting in low frequency and efficiency of use

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