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基于边缘计算的智能电能表校时方法研究
电子技术应用
李江超,王文强,李鹏,袁艳芳,薛斌斌,杨科闻
北京智芯微电子科技有限公司,北京 100192
摘要: 随着电力物联网的发展和智能电能表的不断普及,解决电能表时钟异常问题、对时钟超差电能表进行校时已经成为电力公司一项越来越重要的工作。对于时钟偏差超过5分钟的费控电能表,目前主流做法是通过点对点密文校时的方法来进行矫正,但这种超差电表数量增多之后,会给主站系统校时工作带来较大负荷。针对这一问题,借鉴边缘计算思想,即将整体工作拆分后部分分配至边缘节点,分布式完成整体工作,提出了一种基于边缘计算的批量电能表校时方法,通过主站批量任务下发、边缘节点转加密等技术,实现对时钟超差电能表的批量校时,减轻主站系统的业务压力,提高主站系统的工作效率。
中圖分類號(hào):TM93 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.234436
中文引用格式: 李江超,王文強(qiáng),李鵬,等. 基于邊緣計(jì)算的智能電能表校時(shí)方法研究[J]. 電子技術(shù)應(yīng)用,2024,50(3):48-52.
英文引用格式: Li Jiangchao,Wang Wenqiang,Li Peng,et al. Research on timing method of prepayment meter based on edge computing[J]. Application of Electronic Technique,2024,50(3):48-52.
Research on timing method of prepayment meter based on edge computing
Li Jiangchao,Wang Wenqiang,Li Peng,Yuan Yanfang,Xue Binbin,Yang Kewen
Beijing SmartChip Microelectronics Company Limited , Beijing 100192 , China
Abstract: With the construction of the power IoT and the increasing popularity of smart meters, solving the problem of abnormal clock of meters and correcting the clock deviation of meters has become an increasingly important task for power companies. For prepayment meters with clock deviations exceeding 5 minutes, the current common approach is to correct them through point-to-point cipher text timing. However, the increase in the number of such meters out of tolerance will put a significant burden on the central station's timing work. In response to this issue, drawing on the concept of edge computing, which involves splitting the overall task and allocating parts of it to edge nodes for distributed completion, this article proposes a batch electricity meter calibration method based on edge computing. The method utilizes techniques such as bulk task deployment from the central station and encryption by the edge nodes, enabling batch calibration of clocks with significant differences in electricity meters, reducing the operational pressure on the central station system and improving its efficiency.
Key words : energy meter;edge computing;clock;timing;batch tasks;trans-encryption;security module

引言

近年來(lái),隨著電力物聯(lián)網(wǎng)的發(fā)展和智能電能表的逐步推廣以及實(shí)時(shí)費(fèi)控等功能模塊的深化應(yīng)用,用電領(lǐng)域?qū)﹄娔鼙?a class="innerlink" href="http://ihrv.cn/tags/時(shí)鐘" target="_blank">時(shí)鐘準(zhǔn)確性要求也越來(lái)越高。

智能電能表中的時(shí)鐘通常是基于晶體振蕩器來(lái)實(shí)現(xiàn)的,它們負(fù)責(zé)維護(hù)電能計(jì)量的準(zhǔn)確性和時(shí)間記錄。然而,隨著設(shè)備的長(zhǎng)期使用,晶體振蕩器可能會(huì)受到環(huán)境因素、溫度變化以及電子元件衰減等因素的影響,從而導(dǎo)致時(shí)鐘的不準(zhǔn)確[1]。

電能表時(shí)鐘不準(zhǔn)確可能會(huì)對(duì)用電信息采集系統(tǒng)中的電能計(jì)量和時(shí)間記錄造成一定的影響。在電能計(jì)費(fèi)和用電統(tǒng)計(jì)方面,時(shí)鐘不準(zhǔn)確可能會(huì)導(dǎo)致能源消耗的誤判,用戶可能會(huì)被過(guò)高或過(guò)低地計(jì)費(fèi)。此外,在時(shí)間記錄方面,時(shí)鐘不準(zhǔn)確可能會(huì)影響到用電的時(shí)間段分析等[2]。在電力公司日常運(yùn)維工作中,解決電能表時(shí)鐘異常問(wèn)題、對(duì)時(shí)鐘超差電能表進(jìn)行校時(shí),已經(jīng)成為一項(xiàng)越來(lái)越重要的工作[3]。為了減輕主站側(cè)的業(yè)務(wù)壓力,借鑒邊緣計(jì)算思想,本文設(shè)計(jì)了一種對(duì)批量時(shí)鐘超差電能表校時(shí)方法。


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http://ihrv.cn/resource/share/2000005915


作者信息:

李江超,王文強(qiáng),李鵬,袁艷芳,薛斌斌,楊科聞

北京智芯微電子科技有限公司


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