CN110058190B - Device and method for detecting series of users of non-household uninterrupted electric energy meter - Google Patents
Device and method for detecting series of users of non-household uninterrupted electric energy meter Download PDFInfo
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- CN110058190B CN110058190B CN201910295608.4A CN201910295608A CN110058190B CN 110058190 B CN110058190 B CN 110058190B CN 201910295608 A CN201910295608 A CN 201910295608A CN 110058190 B CN110058190 B CN 110058190B
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention provides a device and a method for detecting the serial household of a non-household uninterrupted electric energy meter, wherein the device for detecting the serial household of the non-household uninterrupted electric energy meter correctly identifies the corresponding relationship between a household and the electric energy meter on the premise of ensuring the non-household and uninterrupted power supply, and consists of a device host and a device slave, wherein the device host is controlled to sequentially generate high-frequency signals with different frequencies, the signals are coupled into an electric circuit between the electric energy meter and the household through a coupling circuit, the signals can generate radiation outwards due to the change of transmission impedance at an open position at the front end of the household, and the device slave judges the corresponding relationship between the household and the electric energy meter by scanning the frequency and the intensity of the radiation signals and stores the information into an internal data storage unit. The device master and the device slave can wirelessly transmit signals, and the device slave can control the device master to output signals of different frequencies. Compared with the existing detection device and method, the invention has the advantages of high detection efficiency and recognition accuracy and the like.
Description
Technical Field
The invention relates to the technical field of distribution network power consumption detection, in particular to a device and a method for detecting the series of users of a non-household uninterrupted electric energy meter.
Background
In the process of installing and wiring the on-site electricity consumption, because the installation places of the air switch and the electric energy meter of the household are different, a certain distance exists between the air switch and the electric energy meter, an electric power circuit between the outlet end of the electric energy meter and the inlet end of the air switch can be shielded by a shielding object, the phenomenon that the electric energy meter 1 is connected into the household 2 often occurs after the circuit is connected, the phenomenon is called as the phenomenon that the electric energy meter is in series connection, and the problem that the electricity charge of the household 2 is different from the actual electricity consumption is caused.
The method mainly comprises three methods for solving the problem of electric energy meter crosstalk, namely, judging the corresponding relation between the electric energy meter and a user by cutting off or increasing electricity consumption, but the method needs the cooperation of a resident at home, and the electricity consumption experience and satisfaction of the resident are reduced due to the increase of the electricity consumption; secondly, when the household enters the home of the user, a detection device is respectively connected with the electric energy outlet end and the user space, and whether the electric energy meter is directly connected with the household is judged through the power line carrier, so that the method also needs the cooperation of the household at home and generates interference on the life of the household; thirdly, a signal coupler is installed at the outlet end of the electric energy meter, and a signal scanning device is used for scanning signals at the household side to judge the corresponding relation between the electric energy meter and the household. Therefore, the device for detecting the series of the non-household uninterrupted electric energy meters has great significance in researching and developing the detection accuracy and the detection efficiency.
Disclosure of Invention
The invention aims to solve the problems and provides a device and a method for detecting the serial household of a non-household uninterrupted electric energy meter, which are used for carrying out carrier transmission signals by using a power line on the premise of non-household and uninterrupted power supply, and the device scans the frequency and the intensity of carrier signals radiated into space at the household side to judge the corresponding relation between the household and the electric energy meter and improve the detection accuracy and the detection efficiency of the serial household of the electric energy meter.
The technical scheme of the invention is as follows:
a non-entrance uninterrupted power supply electric energy meter serial-household detection device comprises a device host and a device slave, wherein the device host comprises a signal generator, a signal coupling circuit, a multi-path high-frequency wave trap, a multi-path switch, an electric energy meter communication unit, a host wireless communication unit, a host MCU (microprogrammed control unit), a host touch display screen, a host data storage unit and a host power supply module;
the signal generator is controlled by the host MCU, outputs high-frequency signals with different frequencies, transmits the signals to the signal coupling circuit, and is connected with the multi-way switch to couple the signals to the wire outlet ends of different electric energy meters in the same electric well through the multi-way switch;
the multi-path high-frequency wave trapper is connected with the multi-path switch, is controlled by the multi-path switch to be connected with the outlet ends of the plurality of electric energy meters and is disconnected with the outlet ends of the electric energy meters coupled with high-frequency signals, and the high-frequency wave trapper is used for preventing the high-frequency signals from being transmitted to the outlet ends of other electric energy meters through a line;
the multi-way switch is connected with the wire outlet ends of the plurality of electric energy meters and is controlled by the host MCU, the multi-way switch sequentially couples the high-frequency signals generated by the signal generator to one electric energy meter, and the rest electric energy meters are connected into a multi-way high-frequency wave trapper;
the electric energy meter communication unit reads the information of the electric energy meter, the host wireless communication unit is communicated with the device slave machine, and the information of the electric energy meter read by the electric energy meter communication unit is sent to the device slave machine;
the device comprises a slave machine, a signal scanning and decoupling unit, a slave machine wireless communication unit, a slave machine MCU, a slave machine touch display screen, a data analysis and storage unit and a slave machine power supply module;
the signal scanning and decoupling unit is used for scanning a high-frequency signal transmitted by a device host machine at the household side through a line and decoupling the signal;
the slave wireless communication unit sends a control signal to the device host;
the slave MCU control signal scanning and decoupling unit acquires a high-frequency signal; controlling the non-slave wire communication unit to send a wireless signal;
the data analysis and storage unit is used for analyzing the high-frequency signal frequency and the signal intensity acquired by the signal scanning and decoupling unit, judging the corresponding relation between a resident and the electric energy meter, and storing the high-frequency signal data, the judgment information data, the device host configuration data and the device slave configuration data.
The host power supply module gets power from a front-end circuit of the electric energy meter through an alternating magnetic field or supplies power to the device host through a battery.
The slave power supply module supplies power to the device slave through the installation of a battery.
A method for detecting the series connection of non-household uninterrupted electric energy meters comprises the following specific steps:
(1) setting a device host wireless communication module at the electric energy meter side as a signal monitoring mode;
(2) the method comprises the steps that a device host is arranged on the electric energy meter side to read address information of a No. 1 electric energy meter and store data;
(3) the main machine of the device arranged on the side of the electric energy meter generates a certain high-frequency signal f1Storing signal data, and coupling the signal into a 1# electric energy meter outlet terminal;
(4) the device host machine connects the multi-path high-frequency wave trapper to the wire outlet end of the residual electric energy meter;
(5) the device slave wireless communication unit reads the address information and the signal data of the electric energy meter 1# stored in the device host;
(6) device obtains high-frequency signal frequency and signal intensity P from slave scanning and decoupling unit1；
(7) A device slave wireless communication unit is arranged at the side of a resident 1 to send a line switching signal to a device host;
(8) the device host receives the line switching signal sent by the device slave to control the multi-way switch to switch the line and generate a high-frequency signal f2And storing signal data, coupling the signal into a 2# electric energy meter outlet terminal, and connecting the multi-path high-frequency wave trapper to a residual electric energy meter outlet terminal;
(9) the slave wireless communication unit of the device reads the address information and the signal data of the 2# electric energy meter stored in the host of the device;
(10) device obtains high-frequency signal frequency and signal intensity P from slave scanning and decoupling unit2；
(11) Repeating (7) to (10) until all the electric energy meter outlet terminals are coupled and transmit different frequency high-frequency signal frequencies and signal intensities Pk；
(12) The device being advanced from machineAnd performing data analysis, wherein according to the transmission line theory, when the 1# electric energy meter is in a line direct connection relation with the household 1, the signal intensity P measured at the household 1 side1The signal intensity is the maximum, namely, the direct connection corresponding relation between the 1# electric energy meter and the household 1 can be judged, otherwise, when the 1# electric energy meter and the household 1 are in the non-direct connection relation of the lines, the signal can be weakened continuously in the transmission process, and the signal intensity P measured at the household 1 side1Then it will be smaller by comparing P1～PkThe maximum value P is foundmThe m # electric energy meter is in direct connection corresponding relation with the housing 1, and the address information of the electric energy meter and the information of the corresponding household are stored;
(13) and in the same way, the corresponding relation between all the n electric energy meters and n households can be correspondingly obtained, and the household-crossing detection of the non-household uninterrupted electric energy meters is realized.
Compared with the prior art, the invention has the beneficial effects that: the high-frequency wave trapper is used for preventing high-frequency signals from being transmitted to the wire outlet ends of other electric energy meters through a line, and the problem that the identification of the non-household uninterrupted electric energy meter serial detection device is wrong is solved. The device host and the device slave can communicate through the wireless communication unit, the slave can control and configure host parameters, detection personnel are prevented from walking back and forth on the electric energy meter installation side and the household side to set the device host parameters, and the detection efficiency is high.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic diagram of the principle of the host circuit of the troubleshooting instrument of the present invention;
FIG. 3 is a schematic diagram of the slave circuit of the inspection apparatus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a non-entrance uninterrupted power supply electric energy meter serial-household detection device comprises a device host and a device slave, wherein the device host comprises a signal generator, a signal coupling circuit, a multi-path high-frequency wave trap, a multi-path switch, an electric energy meter communication unit, a host wireless communication unit, a host MCU (microprogrammed control unit), a host touch display screen, a host data storage unit and a host power supply module;
the device host is portable, simultaneously accesses a plurality of electric energy meters, configures parameters through a host touch display screen, sets and outputs a high-frequency signal, couples the high-frequency signal to a certain electric energy meter wire outlet end, reads electric energy meter information, and controls a multi-way switch to connect a multi-way high-frequency wave trap to the residual electric energy meter wire outlet end.
The signal generator is controlled by the host MCU, outputs high-frequency signals with different frequencies, transmits the signals to the signal coupling circuit, and is connected with the multi-way switch to couple the signals to the wire outlet ends of different electric energy meters in the same electric well through the multi-way switch;
the multi-path high-frequency wave trapper is connected with the multi-path switch, is controlled by the multi-path switch to be connected with the outlet ends of the plurality of electric energy meters and is disconnected with the outlet ends of the electric energy meters coupled with high-frequency signals, and the high-frequency wave trapper is used for preventing the high-frequency signals from being transmitted to the outlet ends of other electric energy meters through a line;
the multi-way switch is connected with the wire outlet ends of the plurality of electric energy meters and is controlled by the host MCU, the multi-way switch sequentially couples the high-frequency signals generated by the signal generator to one electric energy meter, and the rest electric energy meters are connected into a multi-way high-frequency wave trapper;
the electric energy meter communication unit reads the information of the electric energy meter, the host wireless communication unit is communicated with the device slave machine, and the information of the electric energy meter read by the electric energy meter communication unit is sent to the device slave machine;
the device comprises a slave machine, a signal scanning and decoupling unit, a slave machine wireless communication unit, a slave machine MCU, a slave machine touch display screen, a data analysis and storage unit and a slave machine power supply module;
the device slave is portable, and self parameters are configured through the touch display screen of the slave; the device host is coupled to a high-frequency signal at an outlet end of the electric energy meter, when the device host is close to a user side, the high-frequency signal can radiate to the space due to the change of line transmission impedance, and the device scans from a machine to obtain a radiation signal for signal analysis; receiving electric energy meter information transmitted by a host wireless communication unit of the device, judging the corresponding relation between a resident and the electric energy meter, and storing analysis data and a judgment result; and sending a control signal to the device slave through the wireless communication unit.
The signal scanning and decoupling unit is used for scanning a high-frequency signal transmitted by a device host machine at the household side through a line and decoupling the signal;
the slave wireless communication unit sends a control signal to the device host;
the slave MCU control signal scanning and decoupling unit acquires a high-frequency signal; controlling the non-slave wire communication unit to send a wireless signal;
the data analysis and storage unit is used for analyzing the high-frequency signal frequency and the signal intensity acquired by the signal scanning and decoupling unit, judging the corresponding relation between a resident and the electric energy meter, and storing the high-frequency signal data, the judgment information data, the device host configuration data and the device slave configuration data.
The invention takes n electric energy meters in a certain cell as an example, and explains the specific implementation mode of the electric energy meter serial household detection.
Fig. 1 is a wiring diagram of a system of a non-household uninterrupted electric energy meter household detection device according to the present invention, where n electric energy meters correspond to n households, and there may be errors in the correspondence between the electric energy meters and the households, so that the electric energy meter household detection device according to the present invention is required. The specific implementation steps are as follows:
the method comprises the following steps: and setting a wireless communication module of the device host at the electric energy meter side as a signal monitoring mode.
Step two: and the device host is arranged on the electric energy meter side to read the address information of the No. 2 electric energy meter and store data.
Step three: the main machine of the device arranged on the side of the electric energy meter generates a certain high-frequency signal f1And storing the signal data, and coupling the signal into the 1# electric energy meter outlet terminal.
Step four: the device host machine connects the multi-path high-frequency wave trapper to the wire outlet end of the residual electric energy meter.
Step five: the slave wireless communication unit of the device reads the address information and the signal data of the electric energy meter 1# stored in the host of the device.
Step six: device obtains high-frequency signal frequency f from slave scanning and decoupling unit1' and signal strength P1。
Step seven: the device slave wireless communication unit is arranged at the side of the resident 1 to send a line switching signal to the device master.
Step eight: the device host receives the line switching signal sent by the device slave to control the multi-way switch to switch the line and generate a high-frequency signal f2And storing signal data, coupling the signal into a 2# electric energy meter outlet terminal, and connecting the multi-path high-frequency wave trapper to the residual electric energy meter outlet terminal.
Step nine: the slave wireless communication unit of the device reads the address information and the signal data of the 2# electric energy meter stored in the host of the device.
Step ten: device obtains high-frequency signal frequency f from slave scanning and decoupling unit2' and signal strength P2。
Step eleven: repeating the seventh step to the tenth step until all the outlet terminals of the electric energy meter are coupled and transmit different-frequency high-frequency signal frequencies fk' and signal strength Pk。
Step twelve: the device analyzes data from the slave machine, and according to the transmission line theory, when the No. 1 electric energy meter and the household 1 are in a direct connection relationship, the signal intensity P measured at the household 1 side1Should be at a maximum, i.e. P1＞P2＞…＞PkTherefore, the direct connection corresponding relation between the 1# electric energy meter and the household 1 can be judged, on the contrary, when the 1# electric energy meter and the household 1 are in the non-direct connection line relation, the signal can be weakened continuously in the transmission process, and the signal intensity P measured at the household 1 side1Then it will be smaller by comparing P1～PkThe maximum value P is foundmNamely, the m # electric energy meter is directly connected with the house 1, and the address information of the electric energy meter and the information of the corresponding household are stored.
Step thirteen: and in the same way, the one-to-one correspondence relationship between all the n electric energy meters and the n households can be obtained in sequence, and the detection of the serial household of the non-household uninterrupted electric energy meters is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A detection method for the serial household of a non-household uninterrupted electric energy meter is characterized in that the detection method utilizes a detection device for the serial household of the non-household uninterrupted electric energy meter, the detection device comprises a device host and a device slave, and the detection method is characterized in that: the device host comprises a signal generator, a signal coupling circuit, a multi-path high-frequency wave trap, a multi-path switch, an electric energy meter communication unit, a host wireless communication unit, a host MCU, a host touch display screen, a host data storage unit and a host power supply module;
the signal generator is controlled by the host MCU, outputs high-frequency signals with different frequencies, transmits the signals to the signal coupling circuit, and is connected with the multi-way switch to couple the signals to the wire outlet ends of different electric energy meters in the same electric well through the multi-way switch;
the multi-path high-frequency wave trapper is connected with the multi-path switch, is controlled by the multi-path switch to be connected with the outlet ends of the plurality of electric energy meters and is disconnected with the outlet ends of the electric energy meters coupled with high-frequency signals, and the high-frequency wave trapper is used for preventing the high-frequency signals from being transmitted to the outlet ends of other electric energy meters through a line;
the multi-way switch is connected with the wire outlet ends of the plurality of electric energy meters and is controlled by the host MCU, the multi-way switch sequentially couples the high-frequency signals generated by the signal generator to one electric energy meter, and the rest electric energy meters are connected into a multi-way high-frequency wave trapper;
the electric energy meter communication unit reads the information of the electric energy meter, the host wireless communication unit is communicated with the device slave machine, and the information of the electric energy meter read by the electric energy meter communication unit is sent to the device slave machine;
the device comprises a slave machine, a signal scanning and decoupling unit, a slave machine wireless communication unit, a slave machine MCU, a slave machine touch display screen, a data analysis and storage unit and a slave machine power supply module;
the signal scanning and decoupling unit is used for scanning a high-frequency signal transmitted by a device host machine at the household side through a line and decoupling the signal;
the slave wireless communication unit sends a control signal to the device host;
the slave MCU control signal scanning and decoupling unit acquires a high-frequency signal; controlling the non-slave wire communication unit to send a wireless signal;
the data analysis and storage unit is used for analyzing the high-frequency signal frequency and the signal intensity acquired by the signal scanning and decoupling unit, judging the corresponding relation between a resident and the electric energy meter, storing high-frequency signal data, judgment information data, device host configuration data and device slave configuration data,
the detection method for the series connection of the non-household uninterrupted electric energy meter comprises the following specific steps:
(1) setting a device host wireless communication module at the electric energy meter side as a signal monitoring mode;
(2) the method comprises the steps that a device host is arranged on the electric energy meter side to read address information of a No. 1 electric energy meter and store data;
(3) the main machine of the device arranged at the side of the electric energy meter generates a certain high-frequency signalf 1Storing signal data, and coupling the signal into a 1# electric energy meter outlet terminal;
(4) the device host machine connects the multi-path high-frequency wave trapper to the wire outlet end of the residual electric energy meter;
(5) the device slave wireless communication unit reads the address information and the signal data of the electric energy meter 1# stored in the device host;
(6) device obtains high-frequency signal frequency and signal intensity from slave scanning and decoupling unitP 1；
(7) A device slave wireless communication unit is arranged at the side of a resident 1 to send a line switching signal to a device host;
(8) the device host receives the line switching signal sent by the device slave to control the multi-way switch to switch the line and generate a high-frequency signalf 2And storing signal data, coupling the signal into a 2# electric energy meter outlet terminal, and connecting the multi-path high-frequency wave trapper to a residual electric energy meter outlet terminal;
(9) the slave wireless communication unit of the device reads the address information and the signal data of the 2# electric energy meter stored in the host of the device;
(10) device obtains high-frequency signal frequency and signal intensity from slave scanning and decoupling unitP 2；
(11) Repeating (7) to (10) until all the outlet terminals of the electric energy meter are coupled and transmit high-frequency signal frequencies and signal intensities with different frequenciesP k ；
(12) The device analyzes data from the slave machine, and according to the transmission line theory, when the No. 1 electric energy meter and the household 1 are in a direct connection relationship, the signal intensity measured at the household 1 sideP 1The signal intensity should be the maximum, that is, the direct connection corresponding relationship between the 1# electric energy meter and the household 1 can be judged, otherwise, when the 1# electric energy meter and the household 1 are in the non-direct connection relationship of the line, the signal can be weakened continuously in the transmission process, and the signal intensity measured at the household 1 sideP 1Then it will be smaller, by comparisonP 1~P k The size of the maximum value between, find the maximum valueP m I.e. bymThe # electric energy meter is in direct connection corresponding relation with the housing 1, and the address information of the electric energy meter and the information of the corresponding household are stored;
(13) the same can be correspondingly obtainednAn electric energy meter andnthe corresponding relation among the households realizes the detection of the series of the non-household uninterrupted electric energy meters.
2. The method for detecting the series connection of the non-household uninterrupted electric energy meter according to claim 1, characterized in that: the host power supply module gets power from a front-end circuit of the electric energy meter through an alternating magnetic field or supplies power to the device host through a battery.
3. The method for detecting the series connection of the non-household uninterrupted electric energy meter according to claim 1, characterized in that: the slave power supply module supplies power to the device slave through the installation of a battery.
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| CN111987795A (en) * | 2020-07-27 | 2020-11-24 | 国网福建省电力有限公司 | Power distribution low-voltage branch line monitoring system and method based on Internet of things |
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