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电力行业抄表系统配电台区上行通信信道,以公用信道(GPRS、GSM、PSTN)为主,有较少地区采用RS-485总线或负控无线系统[1]。在通信可靠性、灵活性、并发性和效率等方面,GPRS模式是目前公认的最佳上行通信方式。对于配电台区下行通信信道,主要有低压配电线、RS-485总线、无线,及其混合方式。随着通信技术的不断发展,基于低压配电线的载波抄表系统突现其独有的优势,使得电力行业集中抄表系统稳定在低压电力线载波集中抄表系统(全载波抄表,简称方案1),以及RS485总线、低压电力线载波混合集中抄表系统(半载波抄表,简称方案2)两种方案上。本文将对这两种方案进行详细的分析比较。
Power industry meter reading system with the station uplink communication channel to public channels (GPRS, GSM, PSTN) -based, there are fewer areas using RS-485 bus or negative control wireless system [1]. In terms of communication reliability, flexibility, concurrency and efficiency, GPRS mode is the best recognized uplink communication method. For distribution station downlink communication channel, there are low-voltage distribution lines, RS-485 bus, wireless, and mixed mode. With the continuous development of communication technology, based on the low-voltage distribution line carrier meter reading system suddenly emerged its unique advantages, making the power industry centralized meter reading system stable in low-voltage power line carrier meter reading system (all carrier meter reading, referred to as program 1 ), And RS485 bus, low-voltage power line carrier hybrid centralized meter reading system (half-carrier meter reading, referred to as program 2) on the two programs. This article will conduct a detailed analysis and comparison of these two programs.