WO2020119141A1 - 一种电能表串户排查装置及方法 - Google Patents

一种电能表串户排查装置及方法 Download PDF

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WO2020119141A1
WO2020119141A1 PCT/CN2019/098654 CN2019098654W WO2020119141A1 WO 2020119141 A1 WO2020119141 A1 WO 2020119141A1 CN 2019098654 W CN2019098654 W CN 2019098654W WO 2020119141 A1 WO2020119141 A1 WO 2020119141A1
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WIPO (PCT)
Prior art keywords
host
frequency
carrier signal
frequency carrier
energy meter
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PCT/CN2019/098654
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English (en)
French (fr)
Inventor
魏伟
丁黎
李帆
唐登平
汪旭祥
余鹤
李俊
夏水斌
郑欣
李莉
杨丽华
仇娟
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国网湖北省电力有限公司计量中心
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Priority to US16/498,978 priority Critical patent/US11163018B1/en
Publication of WO2020119141A1 publication Critical patent/WO2020119141A1/zh

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • G08C25/02—Arrangements for preventing or correcting errors; Monitoring arrangements by signalling back receiving station to transmitting station

Definitions

  • the present application relates to the technical field of electric energy meter string household detection, for example, an electric energy meter string household inspection device and method.
  • This application provides a device and method for multi-frequency non-home-type electric energy meter serial household inspection based on PLC communication technology, which uses power carrier communication (PLC) communication without affecting the normal electricity consumption and daily life of users Technology to detect the correspondence between multiple energy meters and users at one time, check the status of the energy meter string households, and improve the efficiency of investigation.
  • PLC power carrier communication
  • the present application provides an electric energy meter serial household checking device, which includes a checking device host and a checking device slave.
  • the checking device host is connected to an electric energy meter in an electric well.
  • the checking device host includes: a host RS485 communication circuit, a host high frequency The signal generating circuit, the host signal modulation circuit, the host key, the host main control chip, the host E 2 PROM, and the host signal blocking circuit.
  • the inspection device slave includes a high frequency carrier signal detection circuit and a high frequency carrier signal connected in sequence Demodulation circuit, slave data processing module, slave master control chip, and slave E 2 PROM; the input end of the host RS485 communication circuit is connected to the energy meter, and the output end of the host RS485 communication circuit is connected to the host main control The chip is connected, the host RS485 communication circuit is set to read the communication address information of the energy meter; the input terminal of the host high-frequency signal generation circuit is connected to the host main control chip, and the output of the host high-frequency signal generation circuit The terminal outputs high-frequency signals of different frequencies generated by the high-frequency signal generation circuit of the host; the host signal modulation circuit is set to encode the communication address information of the energy meter read by the RS485 communication circuit of the host to form a custom protocol and encoding Information, obtain high-frequency signals of different frequencies generated by the high-frequency signal generating circuit of the host, obtain a high-frequency carrier signal from a high-frequency signal modulated by a
  • the host of the inspection device further includes: a host display screen and a host power source respectively connected to the host main control chip
  • the slave device of the inspection device further includes: a slave display screen, a slave button and a slave respectively connected to the slave main control chip Machine power.
  • the display screen of the host is configured to display the address information of the electric energy meter read by the RS485 communication circuit of the host and the preset high-frequency signal frequency input by the keys of the host.
  • the host power supply is configured to supply power to the host of the investigation device, and the host power supply is a lithium battery or the host power supply takes power from the input end of the energy meter through an electromagnetic coil.
  • the host main control chip and the slave main control chip are field programmable gate array (Field Programmable Gate Array, FPGA), digital signal processing (Digital Signal Processing, DSP), ARM or single chip microcomputer.
  • FPGA Field Programmable Gate Array
  • DSP Digital Signal Processing
  • ARM ARM or single chip microcomputer.
  • An electric energy meter serial household inspection method which is applied to the above electric energy meter serial household inspection device, includes: the inspection device host reads the communication address information of the electric energy meter through the host RS485 communication circuit; the host high frequency signal generating circuit in the inspection device host Generate high-frequency signals of different frequencies; the host signal modulation circuit in the host of the investigation device encodes the communication address information of the energy meter to form a custom protocol and encoding information, and obtain high-frequency signals of different frequencies generated by the high-frequency signal generation circuit of the host, Modulating the custom protocol into the high-frequency signal to obtain a high-frequency carrier signal, and feeding the high-frequency carrier signal into the outlet end of the energy meter, wherein the high-frequency carrier signal includes the first signal transmitted to the power grid The high-frequency carrier signal and the second high-frequency carrier signal transmitted to the user's air switch side; the host button in the host of the investigation device inputs the preset high-frequency carrier signal frequency; the host signal modulation circuit in the host of the investigation device converts the first The
  • Figure 1 is a schematic diagram of the principle structure of the present application.
  • a multi-frequency non-home-type electric energy meter serial household inspection device based on PLC communication technology includes an inspection device host 1 and an inspection device slave 2.
  • the inspection device host 1 is related to the electric energy meter in the electric well.
  • the host 1 of the inspection device includes: a host RS485 communication circuit, a host high frequency signal generation circuit, a host signal modulation circuit, a host key, a host main control chip, a host E 2 PROM, a host signal blocking circuit, and the check device
  • the slave 2 includes a high-frequency carrier signal detection circuit, a high-frequency carrier signal demodulation circuit, a slave data processing module, a slave master control chip, and a slave E 2 PROM, which are sequentially connected.
  • the input end of the RS485 communication circuit of the host is connected to the electric energy meter in the electric well (not shown directly in FIG. 1, but it shows that the electric energy meter is connected to the host 1 of the investigation device to indicate the RS485 communication circuit of the electric energy meter in the electric well and the host The input end is connected), the output end of the host RS485 communication circuit is connected to the host main control chip, and the host RS485 communication circuit is set to read the communication address information of a plurality of electric energy meters.
  • the input terminal of the host high-frequency signal generation circuit is connected to the host main control chip, and the output terminal of the host high-frequency signal generation circuit outputs high-frequency signals of different frequencies generated by the host high-frequency signal generation circuit.
  • the host signal modulation circuit encodes the address information of a plurality of electric energy meters read by the host RS485 communication circuit to form a user-defined protocol and encoded information, and at the same time obtains high frequency signals of different frequencies generated by the host high frequency signal generation circuit, Obtain a high-frequency carrier signal from a high-frequency signal modulated by a custom protocol, and feed the high-frequency carrier signal into the outlet of different energy meters, where the high-frequency carrier signal includes the first high-frequency carrier signal transmitted to the power grid And the second high-frequency carrier signal transmitted to the user's air switch side.
  • the host key is connected to the host chip, and the host key is set to input a preset high-frequency carrier signal frequency.
  • the host E 2 PROM is connected to the host main control chip.
  • the host E 2 PROM is a storage unit of the host of the investigation device, and is set to store the read communication address information of the electric energy meter and the preset high-frequency carrier signal frequency information.
  • the host signal damping circuit is connected to the electric energy meter in the electric well (not shown directly in FIG. 1, but it shows that the electric energy meter is connected to the host 1 of the investigation device to indicate that the electric energy meter in the electric well is connected to the host signal damping circuit Connection), set to absorb the first high-frequency carrier signal and the high-frequency interference signal transmitted from the large power grid to the outlet end of the energy meter.
  • the high-frequency carrier signal detection circuit is designed with a detection antenna, which is configured to detect a second high-frequency carrier signal near the user air switch, amplify the detected second high-frequency carrier signal to obtain a third high-frequency carrier signal, and then The three high-frequency carrier signals are transmitted to the high-frequency carrier signal demodulation circuit.
  • the high-frequency carrier signal demodulation circuit is configured to demodulate the third high-frequency carrier signal to obtain the target high-frequency carrier signal frequency, and obtain the encoded signal and the preset high-frequency carrier signal frequency transmitted from the host of the investigation device .
  • the slave data processing module is connected to the slave master control chip, and is configured to perform protocol decoupling analysis on the encoded signal and the detected second high-frequency carrier signal according to the custom protocol to obtain an energy meter corresponding to the user Address information.
  • the slave E 2 PROM is connected to the slave master control chip, the slave E 2 PROM is a storage unit of the slave device of the investigation device, and is set to store the preset high-frequency carrier signal frequency and the target high-frequency signal frequency , And the address information of the energy meter parsed from the slave data processing module.
  • the main control chip of the host and the main control chip of the slave are set to control the related circuits inside the host and the slave to operate normally according to the settings.
  • the investigation device host 1 further includes: a host display screen and a host power supply respectively with the host main control chip
  • the investigation device slave 2 further includes: a slave display screen, a slave key and a slave with the slave main control chip Machine power.
  • the display screen of the host is configured to display the address information of the electric energy meter read by the RS485 communication circuit of the host, and a plurality of preset high-frequency signal frequencies input by the keys of the host.
  • the host key may also be set to query the energy meter address information read by the host RS485 communication circuit, and information such as a plurality of preset high-frequency carrier signal frequencies input by the host key.
  • the host power supply is configured to supply power to the entire host of the investigation device, and the host power supply is a lithium battery or the host power supply takes power from the input end of the energy meter through an electromagnetic coil.
  • the present application provides a multi-frequency non-home-type electric energy meter serial household inspection device and method based on PLC communication technology.
  • the inspection device is composed of a host and a slave, and the host adopts RS485 communication mode at the outlet of multiple energy meters
  • the modulation circuit modulates the address information of different energy meters into high-frequency carrier signals of different frequencies, and uses PLC communication technology to send the high-frequency carrier signals to the user side.
  • the high-frequency carrier signals at the user's side open space will diverge into space due to changes in transmission impedance
  • the slave is designed with a high-frequency carrier signal detection antenna, detects the high-frequency carrier signal on each user side, demodulates the high-frequency carrier signal, and obtains the energy meter address information corresponding to the user's frequency of the high-frequency carrier signal, and realizes the non-home energy meter Cross-household investigation.
  • This application takes n electric energy meters in an electric well in a residential building as an example to describe an example implementation manner of the electric energy meter serial household inspection.
  • FIG. 1 shows a wiring diagram of a multi-frequency non-home-type electric energy meter serial household inspection device and method based on PLC communication technology of the present application. The correspondence between the energy meter and the user is not completely correct.
  • the scheme conducts household inspection of electric energy meters.
  • the electric energy meter serial household inspection method includes the following steps.
  • Step 1 Connect the outlets of multiple energy meters in the electric well to the host of the inspection device according to Figure 1.
  • Step 2 Set the host of the investigation device to read the communication address information ID 1 ⁇ ID n of all the connected energy meters through the RS485 communication circuit.
  • Step 3 Set the host high-frequency signal generating circuit in the investigation device to generate multiple high-frequency signals f 1 ⁇ f n with different frequencies.
  • Step 4 Set the host signal modulation circuit in the host of the investigation device to encode the communication address information of the energy meter to form a custom protocol and encoding information, obtain high frequency signals of different frequencies generated by the host high frequency signal generation circuit, and customize The protocol is modulated into high-frequency signals f 1 ⁇ f n to obtain a high-frequency carrier signal, and the high-frequency carrier signal is fed into the outlet end of the energy meter, wherein the high-frequency carrier signal includes the first high-frequency carrier signal transmitted to the power grid And the second high-frequency carrier signal transmitted to the user's air switch side.
  • Step 5 The host button in the host of the investigation device inputs a preset high-frequency carrier signal frequency.
  • Step 6 The host signal modulation circuit in the host of the investigation device transmits the second high-frequency carrier signal to the user air switch side through the PLC communication technology.
  • Step 7 Set the host signal blocking circuit in the host of the investigation device to access all the output terminals of the energy meter, absorb the first high-frequency carrier signal and the high-frequency interference signal transmitted from the power grid to the output terminal of the energy meter to prevent high-frequency carriers The signals interfere with each other between adjacent energy meters.
  • Step 8 Investigating personnel to the external wall where the user 1 ⁇ user n air switch is installed, setting the high frequency carrier signal detection circuit in the slave device of the inspection device to the detection mode, detecting the second high frequency carrier signal, and detecting The obtained second high-frequency carrier signal is amplified to obtain a third high-frequency carrier signal, and the third high-frequency carrier signal is transmitted to a high-frequency carrier signal demodulation circuit.
  • Step 9 The investigation device demodulates the third high-frequency carrier signal from the high-frequency carrier signal demodulation circuit in the machine to obtain the target high-frequency carrier signal frequency, and obtains the coded signal transmitted by the host of the investigation device and the preset high Frequency carrier signal frequency.
  • Step 10 The slave data processing module in the slave of the checking device performs protocol analysis on the encoded information and the second high-frequency carrier signal according to a custom protocol to obtain the address information of the energy meter corresponding to the user.
  • Step 11 The slave E 2 PROM in the slave of the checking device stores the preset high-frequency carrier signal frequency, the target high-frequency carrier signal frequency, and the energy meter parsed by the slave data processing module Address information.
  • Step 12 Check the device slave.
  • the slave main control chip reads the target high-frequency carrier signal frequency and preset high-frequency carrier signal frequency to analyze the correspondence between the energy meter and the user.
  • the high-frequency carrier signal frequency is consistent with the preset high-frequency carrier frequency set in the device host
  • the energy meter address information is parsed out, and the parsed energy meter address information is compared with the user energy meter read by the host of the investigation device Communication address information, if the parsed energy meter address information is consistent with the read energy meter communication address information, it is determined that the energy meter is in a corresponding relationship with the user, and there is no case of household registration; the main control chip will detect the electricity meter household registration
  • the target high-frequency carrier signal frequency, and the communication address information of the user's energy meter are stored in the slave device E 2 PROM of the checking device to complete the string meter household check.

Abstract

一种基于PLC通信技术的多频率非入户式电能表串户排查装置及方法，排查装置由主机（1）和从机（2）两个部分组成，主机（1）在多个电能表出线端采用RS485通讯方式同时读取不同电能表地址信息，调制电路将不同电能表地址信息调制到不同频率的高频载波信号中，并利用PLC通信技术将高频载波信号发送至用户侧，在调制电路至电能表之间设计有阻波电路，从机（2）设计有高频载波信号探测天线，在用户侧探测高频载波信号，解调高频载波信号，得到高频载波信号频率与用户对应的电能表地址信息。

Description

一种电能表串户排查装置及方法
本申请要求在2018年12月14日提交中国专利局、申请号为201811535396.4的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电能表串户检测技术领域，例如一种电能表串户排查装置及方法。
背景技术
随着城市规划的不断扩展，新建居民楼日益增加，楼内电能表的安装方式大都是集中安装，由于电能表安装地点和用户入户线之间存在一定距离，且被遮挡物覆盖，现场接线人员在接线过程中难以保证电能表与用户之间的接线关系完全正确，从而导致电能表串户情况的出现。
为避免电能表串户的情况，保证用户正常用电，现在主要采用三种方式进行电能表串户排查，一是通过断电及增加用户用电的方式来排查电能表串户，此方法可以有效的实现电能表串户排查，但是会影响用户正常用电；二是通过在电能表出线端及用户家中同时安装检测装置，通过测试电能表出线端与用户家中检测装置的连通关系来判断串户情况，此方法需要用户配合，并进入用户家中，严重影响用户日常生活；三是通过在某一电能表出线端发送信号至用户侧，利用检测装置在不同用户处探测信号，判定检测到的信号强度最强的用户与该电能表为对应关系，此方法一次只能对一个电能表进行检测，检测效率低。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本申请提供一种基于PLC通信技术的多频率非入户式电能表串户排查装置及方法，在不影响用户正常用电及日常生活的前提下，利用电力载波(Power line Communication，PLC)通信技术，一次性检测多个电能表与用户之间的对应关系，排查电能表串户情况，提高排查效率。
本申请提供一种电能表串户排查装置，包括排查装置主机和排查装置从机，所述排查装置主机与电井内电能表相连接，所述排查装置主机包括：主机RS485通讯电路、主机高频信号产生电路、主机信号调制电路、主机按键、主机主控芯片、主机E 2PROM，以及主机信号阻波电路，所述排查装置从机包括依次连接的高频载波信号探测电路、高频载波信号解调电路、从机数据处理模块、从机主控芯片，以及从机E 2PROM；所述主机RS485通讯电路输入端与电能表相连接，所述主机RS485通讯电路的输出端与主机主控芯片相连接，所述主机RS485通讯电路设置为读取电能表的通信地址信息；所述主机高频信号产生电路的输入端与主机主控芯片相连接，所述主机高频信号产生电路的输出端输出所述主机高频信号产生电路产生的不同频率的高频信号；所述主机信号调制电路设置为对主机RS485通讯电路读取的电能表的通信地址信息进行编码，形成自定义协议和编码信息，获取主机高频信号产生电路产生的不同频率的高频信号，将自定义协议调制高频信号中得到高频载波信号，将所述高频载波信号馈入电能表的出线端，其中，所述高频载波信号包括传输到电网的第一高频载波信号和传输至用户空气开关侧的第二高频载波信号；所述主机按键与所述主机芯片相连接，所述主机按键设置为输入预设高频载波信号频率；所述主机E 2PROM与主机主控芯片相连接，主机E 2PROM设置为存储读取的电能表的通信地址信息及预设高频载波信号频率；所述主机信号阻波电路与电能表相连，设置为吸收所述第一高频载波信号以及从电网传输到电能表的出线端的高频干扰信号；所述高频载波信号探测电路设置有探测天线，设置为在靠近用户空气开关侧探测所述第二高频载波信号，将探测到的第二高频载波信号进行放大得到第三高频载波信号，将第三高频载波信号传输至高频载波信号解调电路；所述高频载波信号解调电路，设置为对第三高频载波信号进行解调，以得到目标高频载波信号频率，并获取排查装置主机传送过来的所述编码信号及预设高频载波信号频率；所述从机数据处理模块连接从机主控芯片，设置为根据所述自定义协议对编码信号以及探测到的所述第二高频载波信号进行协议解协析，得到与用户对应的电能表地址信息；所述从机E 2PROM与从机主控芯片相连接，从机E 2PROM，设置为存储所述预设高频载波信号频率，所述目标高频信号频率，以及从机数据处理模块解析出来的电能表地址信息。
所述排查装置主机还包括：分别与主机主控芯片相连接的主机显示屏和主机电源，所述排查装置从机还包括：分别与从机主控芯片从机显示屏、从机按 键和从机电源。
所述主机显示屏设置为，显示所述主机RS485通讯电路读取的电能表地址信息，以及所述主机按键输入的预设高频信号频率。
所述主机电源设置为，为排查装置主机供电，主机电源为锂电池或所述主机电源通过电磁线圈从电能表入线端取电。
所述主机主控芯片和从机主控芯片为现场可编程门阵列(Field Programmable Gate Array，FPGA)、数字信号处理(Digital Signal Processing，DSP)、ARM或单片机。
一种电能表串户排查方法，应用于上述的电能表串户排查装置，包括：排查装置主机通过主机RS485通讯电路读取电能表的通信地址信息；排查装置主机中的主机高频信号产生电路产生不同频率高频信号；排查装置主机中的主机信号调制电路对电能表的通信地址信息进行编码，形成自定义协议和编码信息，获取主机高频信号产生电路产生的不同频率的高频信号，将所述自定义协议调制到所述高频信号中得到高频载波信号，将所述高频载波信号馈入电能表的出线端，其中，所述高频载波信号包括传输到电网的第一高频载波信号和传输至用户空气开关侧的第二高频载波信号；排查装置主机中的主机按键输入预设高频载波信号频率；所述排查装置主机中的主机信号调制电路将所述第二高频载波信号通过PLC通信技术传送至用户空气开关侧；所述排查装置主机中的主机信号阻波电路接与电能表的出线端相连接，吸收所述第一高频载波信号以及从电网传输到电能表的出线端的高频干扰信号；排查装置从机中的高频载波信号探测电路对所述第二高频载波信号进行探测，将探测到的所述第二高频载波信号进行放大得到第三高频载波信号，并将所述第三高频载波信号传输至高频载波信号解调电路；所述排查装置从机中的所述高频载波信号解调电路对所述第三高频载波信号进行解调以得到目标高频载波信号频率，并获取排查装置主机传输的编码信号以及所述预设高频载波信号频率；所述排查装置从机中的从机数据处理模块根据自定义协议对所述编码信息和所述探测到的第二高频载波信号进行协议解析，得到与用户对应的电能表地址信息；排查装置从机中的从机E 2PROM存储所述预设高频载波信号频率，所述目标高频载波信号频率，以及所述从机数据处理模块解析出来的电能表地址信息；将所述预设高频载波信号频率与所述目标高频载波频率进行匹配，判断电能表是否发生串户。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图说明
图1是本申请原理结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
如图1所示，一种基于PLC通信技术的多频率非入户式电能表串户排查装置，包括排查装置主机1和排查装置从机2，所述排查装置主机1与电井内电能表相连接，所述排查装置主机1包括：主机RS485通讯电路、主机高频信号产生电路、主机信号调制电路、主机按键、主机主控芯片、主机E 2PROM、主机信号阻波电路，所述排查装置从机2包括依次连接的高频载波信号探测电路、高频载波信号解调电路、从机数据处理模块、从机主控芯片、从机E 2PROM。
所述主机RS485通讯电路输入端与电井内电能表相连接(图1中并未直接示出，但示出了电能表与排查装置主机1相连接，以表示电井内电能表与主机RS485通讯电路输入端相连接)，所述主机RS485通讯电路的输出端与主机主控芯片相连接，所述主机RS485通讯电路设置为读取多个电能表的通信地址信息。
所述主机高频信号产生电路输入端与主机主控芯片相连接，所述主机高频信号产生电路的输出端输出所述主机高频信号产生电路产生的不同频率的高频信号。
所述主机信号调制电路对主机RS485通讯电路读取的多个电能表的地址信息进行编码，形成用户自定义协议和编码信息，同时获取主机高频信号产生电路产生的不同频率的高频信号，将自定义协议调制高频信号中得到高频载波信号，将所述高频载波信号的馈入不同电能表出线端，其中，所述高频载波信号包括传输到电网的第一高频载波信号和传输至用户空气开关侧的第二高频载波信号。
所述主机按键与所述主机芯片相连接，所述主机按键设置为输入预设高频载波信号频率。
所述主机E 2PROM与主机主控芯片相连接，主机E 2PROM为排查装置主机的存储单元，设置为存储读取的电能表的通信地址信息及预设高频载波信号频 率信息。
所述主机信号阻波电路与电井内电能表相连(图1中并未直接示出，但示出了电能表与排查装置主机1相连接，以表示电井内电能表与主机信号阻波电路相连接)，设置为吸收第一高频载波信号以及从大电网传输到电能表的出线端的高频干扰信号。
所述高频载波信号探测电路设计有探测天线，设置为在靠近用户空气开关探测第二高频载波信号，将探测到的第二高频载波信号进行放大得到第三高频载波信号，将第三高频载波信号传送至高频载波信号解调电路。
所述高频载波信号解调电路，设置为对第三高频载波信号进行解调，以得到目标高频载波信号频率，并获取排查装置主机传送过来的编码信号及预设高频载波信号频率。
所述从机数据处理模块连接从机主控芯片，设置为根据所述自定义协议对编码信号以及探测到的所述第二高频载波信号进行协议解协析，得到与用户对应的电能表地址信息。
所述从机E 2PROM与从机主控芯片相连接，从机E 2PROM为排查装置从机的存储单元，设置为存储所述预设高频载波信号频率，所述目标高频信号频率，以及从机数据处理模块解析出来的电能表地址信息。
主机主控芯片机和从机主控芯片分别设置为控制主机和从机内部相关电路按设置正常运行。
所述排查装置主机1还包括：分别与主机主控芯片的主机显示屏和主机电源，所述排查装置从机2还包括：分别与从机主控芯片从机显示屏、从机按键和从机电源。
所述主机显示屏设置为，显示所述主机RS485通讯电路读取的电能表地址信息，及所述主机按键输入的多个预设高频信号频率。
所述主机按键还可以设置为查询所述主机RS485通讯电路读取的电能表地址信息，及所述主机按键输入的多个预设高频载波信号频率等信息。
所述主机电源设置为，为整个排查装置主机供电，主机电源为锂电池或主机电源通过电磁线圈从电能表入线端取电。
本申请提供一种基于PLC通信技术的多频率非入户式电能表串户排查装置及方法，该排查装置由主机和从机两个部分组成，主机在多个电能表出线端采用RS485通讯方式同时读取不同电能表地址信息，调制电路将不同电能表地址 信息调制到不同频率的高频载波信号中，并利用PLC通信技术将高频载波信号发送至用户侧，在调制电路至电能表之间设计有阻波电路，防止高频载波信号在相邻电能表之间相互传输，影响检测结果可靠性，在用户侧入户空开处高频载波信号会因传输阻抗发生变化而向空间发散，从机设计有高频载波信号探测天线，在各个用户侧探测高频载波信号，解调高频载波信号，得到高频载波信号频率与用户对应的电能表地址信息，实现非入户电能表串户排查。
本申请以某居民楼中电井内n个电能表为例，对电能表串户排查示例实施方式进行说明。
图1所示为本申请一种基于PLC通信技术的多频率非入户式电能表串户排查装置及方法接线框图，电能表与用户之间的对应关系并不完全正确，需要采用本申请的方案进行电能表串户排查。电能表串户排查方法包括以下步骤。
步骤一：根据图1将电井中多块电能表出线端接入排查装置主机。
步骤二：设置排查装置主机通过RS485通讯电路读取全部接入的电能表的通信地址信息ID 1～ID n。
步骤三：设置排查装置中的主机高频信号产生电路产生多个不同频率的高频信号f 1～f n。
步骤四：设置排查装置主机中的主机信号调制电路对电能表的通信地址信息进行编码，形成自定义协议和编码信息，获取主机高频信号产生电路产生的不同频率的高频信号，将自定义协议调制到高频信号f 1～f n中得到高频载波信号，将高频载波信号馈入电能表的出线端，其中，所述高频载波信号包括传输到电网的第一高频载波信号和传输至用户空气开关侧的第二高频载波信号。
步骤五：所述排查装置主机中的主机按键输入预设高频载波信号频率。
步骤六：排查装置主机中的主机信号调制电路将第二高频载波信号通过PLC通信技术传送至用户空气开关侧。
步骤七：设置排查装置主机中的主机信号阻波电路接入全部电能表出线端，吸收所述第一高频载波信号以及从电网传输到电能表的出线端的高频干扰信号，防止高频载波信号在相邻电能表之间相互干扰。
步骤八：排查人员至用户1～用户n空气开关安装的外墙处，设置排查装置从机中的高频载波信号探测电路为探测模式，对所述第二高频载波信号进行探测，将探测到的所述第二高频载波信号进行放大得到第三高频载波信号，并将所述第三高频载波信号传输至高频载波信号解调电路。
步骤九：排查装置从机中的高频载波信号解调电路对第三高频载波信号进行解调以得到目标高频载波信号频率，并获取排查装置主机传输的编码信号以及所述预设高频载波信号频率。
步骤十：排查装置从机中的从机数据处理模块根据自定义协议对编码信息和第二高频载波信号进行协议解析，得到与用户对应的电能表地址信息。
步骤十一：所述排查装置从机中的从机E 2PROM存储所述预设高频载波信号频率，所述目标高频载波信号频率，以及所述从机数据处理模块解析出来的电能表地址信息。
步骤十二：排查装置从机在某一用户处，从机主控芯片读取目标高频载波信号频率、预设高频载波信号频率，以分析电能表与用户之间的对应关系，在目标高频载波信号频率与装置主机中设置的预设高频载波频率相一致的情况下，解析得出电能表地址信息，比较解析出的电能表地址信息与排查装置主机读取的用户电能表的通信地址信息，若解析出的电能表地址信息与读取的电能表通信地址信息一致，确定电能表与该用户为对应关系，没有发生串户情况；主控芯片将得到的电能表串户检测结果、目标高频载波信号频率，及用户电能表的通信地址信息存入排查装置从机E 2PROM中，完成电能表串户排查。
以上所述仅是本申请针对电能表串户排查的示例实施方式，使本领域技术人员能够理解或实现本申请，但是本申请不仅限于电能表串户检测技术领域，根据权利要求书可以利用本申请提出的一种基于PLC通信技术的多频率非入户式电能表串户排查装置及方法进行电能表串户排查，可用于相关领域接线错误排查，针对本文实例进行的多种修改对本领域技术人员而言是显而易见的，本申请所采用的方法及原理可以在不脱离本申请的精神或范围的情况下，在其它的实例中实现。因此，本申请不会被限制于本文所示的实施案例，而是要符合与本文所公开的原理和新颖特点所一致的最宽范围。

Claims (7)

  1. 一种电能表串户排查装置，包括排查装置主机和排查装置从机，所述排查装置主机与电井内电能表相连接，
    所述排查装置主机包括：主机RS485通讯电路、主机高频信号产生电路、主机信号调制电路、主机按键、主机主控芯片、主机E 2PROM，以及主机信号阻波电路；所述排查装置从机包括：依次连接的高频载波信号探测电路、高频载波信号解调电路、从机数据处理模块、从机主控芯片，以及从机E 2PROM；
    所述主机RS485通讯电路的输入端与电能表相连接，所述主机RS485通讯电路的输出端与所述主机主控芯片相连接，所述主机RS485通讯电路设置为读取电能表的通信地址信息；
    所述主机高频信号产生电路的输入端与所述主机主控芯片相连接，所述主机高频信号产生电路的输出端输出所述主机高频信号产生电路产生的不同频率的高频信号；
    所述主机信号调制电路，设置为对所述主机RS485通讯电路读取的电能表的通信地址信息进行编码，形成自定义协议和编码信息，获取所述主机高频信号产生电路产生的不同频率的高频信号，将所述自定义协议调制到所述高频信号中得到高频载波信号，将所述高频载波信号馈入电能表的出线端，其中，所述高频载波信号包括传输到电网的第一高频载波信号和传输至用户空气开关侧的第二高频载波信号；
    所述主机按键与所述主机芯片相连接，所述主机按键设置为输入预设高频载波信号频率；
    所述主机E 2PROM与所述主机主控芯片相连接，所述主机E 2PROM设置为存储所述电能表的通信地址信息及所述预设高频载波信号频率；
    所述主机信号阻波电路与所述电能表相连接，设置为吸收所述第一高频载波信号，以及从电网传输到电能表的出线端的高频干扰信号；
    所述高频载波信号探测电路设置有探测天线，设置为在靠近用户空气开关侧探测所述第二高频载波信号，将探测到的所述第二高频载波信号进行放大得到第三高频载波信号，将所述第三高频载波信号传输到所述高频载波信号解调电路；
    所述高频载波信号解调电路，设置为对所述第三高频载波信号进行解调以得到目标高频载波信号频率，并获取所述排查装置主机所传输的所述编码信号及所述预设高频载波信号频率；
    所述从机数据处理模块连接所述从机主控芯片，设置为根据所述自定义协议对所述编码信号以及所述第二高频载波信号进行协议解析，得到与用户对应的电能表地址信息；
    所述从机E 2PROM与所述从机主控芯片相连接，所述从机E 2PROM设置为，存储所述预设高频载波信号频率，所述目标高频载波信号频率，以及所述从机数据处理模块解析出来的电能表地址信息。
  2. 根据权利要求1所述的装置，所述排查装置主机还包括：分别与所述主机主控芯片相连接的主机显示屏和主机电源；
    所述排查装置从机还包括：分别与所述从机主控芯片相连接的从机显示屏、从机按键和从机电源。
  3. 根据权利要求2所述的装置，其中，所述主机显示屏设置为，显示所述主机RS485通讯电路读取的电能表地址信息及所述主机按键输入的预设高频载波信号频率。
  4. 根据权利要求1所述的装置，所述主机按键还可以设置为，查询所述主机RS485通讯电路读取的电能表地址信息，及所述主机按键输入的预设高频载波信号频率。
  5. 根据权利要求2所述的装置，其中，所述主机电源设置为，为所述排查装置主机供电，所述主机电源为锂电池或所述主机电源通过电磁线圈从电能表的入线端取电。
  6. 根据权利要求1-5任一所述的装置，其中，所述主机主控芯片和所述从机主控芯片分别为现场可编程门阵列FPGA芯片、数字信号处理DSP芯片、ARM芯片或单片机。
  7. 一种电能表串户排查方法，应用于权利要求1-6中任一项所述的电能表串户排查装置，包括：
    排查装置主机通过主机RS485通讯电路读取电能表的通信地址信息；
    所述排查装置主机中的主机高频信号产生电路产生不同频率的高频信号；
    所述排查装置主机中的主机信号调制电路对所述电能表的通信地址信息进行编码，形成自定义协议和编码信息，获取所述主机高频信号产生电路产生的不同频率的高频信号，将所述自定义协议调制到所述高频信号中得到高频载波信号，将所述高频载波信号馈入电能表的出线端，其中，所述高频载波信号包括传输到电网的第一高频载波信号和传输至用户空气开关侧的第二高频载波信 号；
    所述排查装置主机中的主机按键输入预设高频载波信号频率；
    所述排查装置主机中的主机信号调制电路将所述第二高频载波信号通过PLC通信技术传送至用户空气开关侧；
    所述排查装置主机中的主机信号阻波电路与电能表的出线端相连接，吸收所述第一高频载波信号以及从电网传输到电能表的出线端的高频干扰信号；
    排查装置从机中的高频载波信号探测电路对所述第二高频载波信号进行探测，将探测到的所述第二高频载波信号进行放大得到第三高频载波信号，并将所述第三高频载波信号传输至高频载波信号解调电路；
    所述排查装置从机中的所述高频载波信号解调电路对所述第三高频载波信号进行解调以得到目标高频载波信号频率，并获取排查装置主机传输的编码信号以及所述预设高频载波信号频率；
    所述排查装置从机中的从机数据处理模块根据自定义协议对所述编码信息和所述第二高频载波信号进行协议解析，得到与用户对应的电能表地址信息；
    所述排查装置从机中的从机E 2PROM存储所述预设高频载波信号频率，所述目标高频载波信号频率，以及所述从机数据处理模块解析出来的用户对应的电能表地址信息；
    所述排查装置从机中的从机主控芯片，将所述目标高频载波信号频率与所述预设高频载波信号频率进行匹配，判断电能表是否发生串户。
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