Design of Single-phase Electricity Meter with Clock Maintenance-free and Firmware Upgrade Easily
JU Han-ji1, WANG Chen1, DING Heng-chun1, YUAN Rui-ming1, ZHANG Jian-hui2, PENG Xin-xia1, YIN Jian-feng2, GUO Jiao1
1.Marketing Service Center(Metrology Center) ,State Grid JiBei Electric Power Co.Ltd. ,Beijing 102208,China
2.Jiangsu Linyang Energy Co.Ltd., Nantong, Jiangsu 226200, China
Abstract：Aiming at the problem of large clock deviation of single-phase electricity meter in field operation and the need of promoting new business, a new kind of single-phase electricity meter with clock maintenance-free and firmware upgrade easily was proposed. Through the use of wireless clock synchronization technology to achieve automatic clock synchronization update, the test clock deviation was less than 2 seconds in the environment of -25~70℃;the firmware broadcasting upgrade technology was used to upgrade multiple single-phase electricity meters at the same time, the upgrade time was reduced to one fifth of the original time;the simple file system with low cost, high reliability, easy implementation and easy maintenance were adopted to realize automatic maintenance of storage data format. To avoid losing parameters and data. The design ensures that the clock accuracy is not affected by environmental factors, the upgrading efficiency is greatly improved, and the workload of on-site maintenance is greatly reduced.
1 王晨, 庞富宽, 魏彤珈, 等. 不同环境对单相智能电能表电池寿命的影响分析［J］. 机电元件, 2018, 38（5）: 53-56. WangC, PangF K, WeiT J, et al. Influence of Different Environment on the Life of Single-phase Intelligent Electric Power Meter Battery［J］. Electromechanical Components, 2018, 38（5）: 53-56.
2 Q/GDW 1364—2013单相智能电能表技术规范［S］.
3 吴炼炼. 电能表时钟异常的原因分析与处理［J］. 电力需求侧管理, 2017, 19（5）: 57-59. WuL L. Reason analysis and processing of the abnormal meter clock［J］. Power Demand Side Management, 2017, 19（5）: 57-59.
4 祝倩, 刘水, 朱亮, 等. 时钟同步技术在用电信息采集系统中的应用［J］. 电测与仪表, 2016, 53（15）: 157-159. ZhuJ, LiuS, ZhuL, et al. Application of time clock synchronization in power information collection system［J］. Electrical Measurement ＆ Instrumentation, 2016, 53（15）: 157-159.
5 黄洪, 刘晓湘, 姜苏娜. 多费率电表时钟电池欠压对电能计费的影响及解决方法研究［J］. 质量技术监督研究, 2016, 46（4）: 30-34. HuangH, LiuX X, JiangS N.Research on the influence of under-voltage of Multi-rate electric energy billing and its solution［J］. Quality and Technical Supervision, 2016, 46（4）: 30-34.
6 李亮, 鲁观娜, 吕言国, 等. 智能电能表自动化检定流水线网络授时系统优化［J］. 自动化仪表, 2017, 38（11）: 96-98. LiL, LuG N, LVY G, et al. Optimization of Network Time Synchronization System for Automatic Calibration Line of Smart Electric Energy Meters［J］. PROCESS AUTOMATION INSTRUMENTATION, 2017, 38（11）: 96-98.
7 李涵, 陶鹏, 李翀, 等. 智能电能表时钟电池欠压分及关键计量指标影响［J］. 河北电力技术, 2018, 37（2）: 22-25. LiHan, TaoPeng, LiChong, et al. Low Voltage Analysis of Smart Meter Clock Battery and Its Influence on Key Measurement Indexes［J］. HeBei Electric Power, 2018, 37（2）: 22-25.
8 丁恒春, 巨汉基, 袁瑞铭, 等. 基于低频时码技术的主动授时智能电能表设计［J］. 电测与仪表, 2018, 55（12）: 100-103. DingH C, JuH J, YuanR M, et al. Design of active timing smart meter based on low-frequency time-code technology［J］. Electrical Measurement＆Instrumentation, 2018, 55（12）: 100-103.
9 潘俊涛, 郭小璇, 陈俊, 等. 考虑费控电能表信息安全交互的IPTP时钟同步技术［J］. 电测与仪表, 2018, 55（22）: 147-152. PanJ T, GuoX X, ChenJ, et al. Time synchronization of cost control electricity meter considering the information security interaction mode［J］. Electrical Measurement ＆ Instrumentation, 2018, 55（22）: 147-152.
10 苏慧玲, 王忠东, 蔡奇新, 等. 智能电能表检定系统标准时钟共用方法研究［J］. 自动化仪表, 2018, 39（10）: 24-27. SuH L, WangZ D, CaiQ X, et al. Research on the Sharing Method of Standard Clock in Smart Meter Verification System［J］. PROCESS AUTOMATION INSTRUMENTATION, 2018, 39（10）: 24-27.
2019, Vol. 40 
