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基于邊緣計算的智能電能表校時(shí)方法研究
電子技術(shù)應用
李江超,王文強,李鵬,袁艷芳,薛斌斌,楊科聞
北京智芯微電子科技有限公司,北京 100192
摘要: 隨著(zhù)電力物聯(lián)網(wǎng)的發(fā)展和智能電能表的不斷普及,解決電能表時(shí)鐘異常問(wèn)題、對時(shí)鐘超差電能表進(jìn)行校時(shí)已經(jīng)成為電力公司一項越來(lái)越重要的工作。對于時(shí)鐘偏差超過(guò)5分鐘的費控電能表,目前主流做法是通過(guò)點(diǎn)對點(diǎn)密文校時(shí)的方法來(lái)進(jìn)行矯正,但這種超差電表數量增多之后,會(huì )給主站系統校時(shí)工作帶來(lái)較大負荷。針對這一問(wèn)題,借鑒邊緣計算思想,即將整體工作拆分后部分分配至邊緣節點(diǎn),分布式完成整體工作,提出了一種基于邊緣計算的批量電能表校時(shí)方法,通過(guò)主站批量任務(wù)下發(fā)、邊緣節點(diǎn)轉加密等技術(shù),實(shí)現對時(shí)鐘超差電能表的批量校時(shí),減輕主站系統的業(yè)務(wù)壓力,提高主站系統的工作效率。
中圖分類(lèi)號:TM93 文獻標志碼:A DOI: 10.16157/j.issn.0258-7998.234436
中文引用格式: 李江超,王文強,李鵬,等. 基于邊緣計算的智能電能表校時(shí)方法研究[J]. 電子技術(shù)應用,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(zhù)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)費控等功能模塊的深化應用,用電領(lǐng)域對電能表時(shí)鐘準確性要求也越來(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)現的,它們負責維護電能計量的準確性和時(shí)間記錄。然而,隨著(zhù)設備的長(cháng)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,從而導致時(shí)鐘的不準確[1]。

電能表時(shí)鐘不準確可能會(huì )對用電信息采集系統中的電能計量和時(shí)間記錄造成一定的影響。在電能計費和用電統計方面,時(shí)鐘不準確可能會(huì )導致能源消耗的誤判,用戶(hù)可能會(huì )被過(guò)高或過(guò)低地計費。此外,在時(shí)間記錄方面,時(shí)鐘不準確可能會(huì )影響到用電的時(shí)間段分析等[2]。在電力公司日常運維工作中,解決電能表時(shí)鐘異常問(wèn)題、對時(shí)鐘超差電能表進(jìn)行校時(shí),已經(jīng)成為一項越來(lái)越重要的工作[3]。為了減輕主站側的業(yè)務(wù)壓力,借鑒邊緣計算思想,本文設計了一種對批量時(shí)鐘超差電能表校時(shí)方法。


本文詳細內容請下載:

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


作者信息:

李江超,王文強,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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