CN206331067U - A kind of detection means of being visited one house after another with electric line - Google Patents
A kind of detection means of being visited one house after another with electric line Download PDFInfo
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- CN206331067U CN206331067U CN201621290821.4U CN201621290821U CN206331067U CN 206331067 U CN206331067 U CN 206331067U CN 201621290821 U CN201621290821 U CN 201621290821U CN 206331067 U CN206331067 U CN 206331067U
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Abstract
Visited one house after another the utility model discloses one kind with electric line detection means, including control unit, main frame and slave；When transmission line of electricity has electricity, parameter and transmission of the Host Detection electric energy meter before and after slave puts into characteristic load input analyse whether to visit one house after another to control unit；When transmission line of electricity is without electricity, level signal is converted into room number and sent to control unit contrast to judge whether to visit one house after another by slave incoming level signal into transmission line of electricity, main frame.Detection means of the present utility model is respectively provided with the advantages of detection efficiency is high.
Description
Technical field
The utility model relates generally to Electric Energy Metering Technology field, refers in particular to a kind of detection means of being visited one house after another with electric line.
Background technology
In recent years, as family table transformation scale constantly expands, site operation personnel fail effectively to implement wiring check, construction
Quality monitoring is limited, and causes to be happened occasionally with the electric line problem of visiting one house after another.Visit one house after another table front when being probably installation, line and switch after table
Place's wiring error is caused, it is also possible to which the archive information typing mistake such as marketing system customer number, meter bar code is caused, and is triggered
Customer complaint, if dealing with improperly, it is most likely that cause serious social influence, damages corporate image.By taking Guo Wang companies as an example, state
Platform area of net company scene meter nearly 4.2 hundred million, millesimal error rate will result in 4,200,000 generation of visiting one house after another, anti-pressure of visiting one house after another
Well imagine.Therefore, how effective specification electric energy meter attaching is managed, and is lifted good service level, is fostered a good and healthy company image, and is prevented
Only visited one house after another with electric line, be power supply enterprise's urgent problem to be solved.
Investigation method of being visited one house after another at present with electric line mainly has：Simple jump load switch, increase load diagnostic method, universal meter pair
Collimation method.First two method have impact on the normal electricity consumption of client, can cause the discontented and unnecessary dispute of client.The third method
Efficiency is low, and human cost is high, it is impossible to ensure that detection is accurate completely.Three kinds of methods simple, fast can not be analyzed, judged
All problems of visiting one house after another, it is impossible to be accurately positioned to visit one house after another and classification and visit one house after another a little.
Utility model content
The technical problems to be solved in the utility model is that：The technical problem existed for prior art, this practicality is new
A kind of principle of type offer is simple, easy to operate, detection efficiency is high and the high detection means of being visited one house after another with electric line of accuracy rate.
In order to solve the above technical problems, the utility model proposes technical scheme be：
Visited one house after another the utility model discloses one kind with electric line detection means, including control unit, be installed on electric energy table side
Main frame and the slave that is installed in user side transmission line of electricity；When transmission line of electricity has electricity, the slave is used for transmission line of electricity
Interior input characteristic load, the main frame be used for detect electric energy meter characteristic load put into before and after state parameter and send to from
Machine, described control unit is connected with slave, for reception state parameter and analyzed to judge whether to visit one house after another；In transmission line of electricity
During without electricity, the slave is used for the input level signal corresponding with the binary code that actual room is numbered into transmission line of electricity,
The main frame is used to receive level signal and is converted into room number, described control unit be used to receiving room number and with reality
Room number contrasts to judge whether to visit one house after another.
It is used as the further improvement of above-mentioned technical proposal：
The characteristic load includes resistance unit, electric capacity, input switch and inductance, and the resistance unit and the electric capacity are simultaneously
Connected successively with the input switch and inductance after connection.
The main frame is connected by communication with the electric energy meter, for obtaining shape of the electric energy meter before and after characteristic load is put into
State parameter, the state parameter includes voltage, electric current and power.
The slave includes the first switch for sealing in the live wire of the transmission line of electricity and the zero line for sealing in the transmission line of electricity
Second switch, the first switch and second switch, which are used to encoding corresponding binary-coded code element according to the room, to be entered
Row break-make is with control input power supply.
The main frame includes loop resistance and sample resistance, and one end of each loop resistance is connected and is grounded, the other end with it is right
The transmission line of electricity answered is connected, and one end of the sample resistance is connected with the other end of loop resistance, the other end and the main frame
I/O is connected.
Compared with prior art, the utility model has the advantage of：
Detection means of the present utility model of being visited one house after another with electric line, can be carried out in the case of electric transmission line hot-line or without electricity
Detection, practicality is stronger；In electric transmission line hot-line, characteristic load, the state ginseng of detection electric energy meter are put into transmission line of electricity
Number carries out analysis so as to judging whether to visit one house after another, easy to operate and reliability is high；In addition when transmission line of electricity is without electricity, to each power transmission line
Input level signal corresponding with the binary code that room is encoded in road, by the level signal for receiving electric energy table side transmission line of electricity
And it is converted into room number, it is same easy to operate and reliability is high and then with actual room numbering contrast to judge whether to visit one house after another；
Therefore detection means principle of the present utility model of being visited one house after another with electric line is simple, easy to operate, detection efficiency is high and accuracy rate is high.
Brief description of the drawings
Fig. 1 is the frame assumption diagram of detection means of the present utility model.
Fig. 2 is frame assumption diagram of the detection means of the present utility model when transmission line of electricity has electricity.
Fig. 3 is characteristic load circuit theory diagrams of the present utility model.
Fig. 4 is characteristic load Current calculation vectogram of the present utility model.
Fig. 5 is the signal output apparatus schematic diagram of slave of the present utility model.
Fig. 6 is the signal resolution circuit theory diagrams of main frame of the present utility model.
Fig. 7 is the schematic diagram of the sample circuit of main frame of the present utility model.
Fig. 8 is the corresponding method flow diagram of slave of the present utility model.
Fig. 9 is the corresponding method flow diagram of main frame of the present utility model.
Figure 10 is testing result wiring diagram of the present utility model.
Label is represented in figure：1st, main frame；2nd, slave.
Embodiment
The utility model is further described below in conjunction with Figure of description and specific embodiment.
As shown in Figures 1 to 7, visited one house after another the utility model discloses one kind with electric line detection means, including control unit,
The main frame 1 for being installed on electric energy table side and the slave 2 being installed in user side transmission line of electricity；When transmission line of electricity has electricity, slave 2 is used
In putting into characteristic load into transmission line of electricity, main frame 1 is used to detect state parameter of the electric energy meter before and after characteristic load is put into simultaneously
Send to slave 2, control unit is wirelessly connected with slave 2, for reception state parameter and analyzed to judge whether to visit one house after another；
When transmission line of electricity is without electricity, slave 2 is used for the input electricity corresponding with the binary code that actual room is numbered into transmission line of electricity
Ordinary mail number, main frame 1 is used to receive level signal and is converted into room number, control unit be used to receiving room number and with reality
Room number contrasts to judge whether to visit one house after another.
Detection means of the present utility model of being visited one house after another with electric line, can be carried out in the case of electric transmission line hot-line or without electricity
Detection, practicality is stronger；In electric transmission line hot-line, characteristic load, the state ginseng of detection electric energy meter are put into transmission line of electricity
Number carries out analysis so as to judging whether to visit one house after another, easy to operate and reliability is high；In addition when transmission line of electricity is without electricity, to each power transmission line
Input level signal corresponding with the binary code that room is encoded in road, by the level signal for receiving electric energy table side transmission line of electricity
And it is converted into room number, it is same easy to operate and reliability is high and then with actual room numbering contrast to judge whether to visit one house after another；
Therefore detection means principle of the present utility model of being visited one house after another with electric line is simple, easy to operate, detection efficiency is high and accuracy rate is high.Separately
Existing control unit (such as PLC) is utilized in its outer control process, and string is realized using simple logic judgment programmed method
Family testing goal, belonging to those skilled in the art can be with using existing computer program development platform and well known programmed method
The simple program of its function is easily realized, the improvement to computer program is not related to.
As shown in figure 3, in the present embodiment, characteristic load includes resistance unit, electric capacity C68, input switch J2B and inductance
L5, connects with input switch and inductance successively after resistance unit is in parallel with electric capacity.Wherein resistance unit includes the electricity being sequentially connected in series
R93, R115 and R116 are hindered, wherein controlling whether load capacitance C68 cuts current supply circuit by J2B relays, in electric capacity two
Hold parallel resistance unit (discharge resistance), it is ensured that on-the-spot test personal security.Wherein characteristic load is：
In the present embodiment, in the case where transmission line of electricity has electricity, main frame 1 cuts characteristic load forward and backward two in slave 2 respectively
Under kind of state, the electric current of electric energy meter and phase angle in user's transmission line of electricity are measured by split-core type meter (such as ADE7953 chips), and by number
According to being transmitted to control unit (such as panel computer)；Or main frame 1 is connected by communication with electric energy meter, obtains electric energy meter and put into characteristic load
Front and rear voltage, electric current and realtime power, then counter push away electric current and phase angle.
In the present embodiment, when transmission line of electricity is without electricity, slave 2 includes sealing in the first switch and string of the live wire of transmission line of electricity
Enter the second switch of the zero line of transmission line of electricity, first switch and second switch are used to encode corresponding binary coding according to room
Code element carry out break-make with control input power supply.Wherein main frame 1 includes loop resistance and sample resistance, one end of each loop resistance
It is connected and is grounded, the other end is connected with corresponding transmission line of electricity, and one end of sample resistance is connected with the other end of loop resistance, separately
One end is connected with the I/O of main frame 1.
In the present embodiment, after the starting up of main frame 1, mode of operation is first confirmd that, mode of operation includes power mode and nothing
Power mode, wherein having in power mode and including two kinds of detection modes of split-core type meter and communication.After slave 2 is started shooting, pass through WIFI moulds first
Block communicates with control unit (such as flat board, mobile phone), then room number where testing setup, and by the line attachment of slave 2, its work
Operation mode includes power mode and without power mode.
As shown in Fig. 8 to Figure 10, detection method of visiting one house after another is described further with reference to detection means as described above, is divided into
Transmission line of electricity have electricity and without electricity two kinds in the case of detection method, when transmission line of electricity has electricity, comprise the following steps：
S01, into the transmission line of electricity of user side put into characteristic load；
The state parameter of S02, detection electric energy meter before and after characteristic load is put into, and state parameter is analyzed to judge
Whether visit one house after another, the state parameter after such as characteristic load is put into is contrasted with theory state parameter, as being consistent, judgement does not have
Visit one house after another, otherwise it is assumed that visiting one house after another；
In addition when transmission line of electricity is without electricity, corresponding detection method comprises the following steps：
S101, into the transmission line of electricity of user side input with actual room numbering binary code (such as 100110) it is corresponding
Continuous level signal；
S102, the level signal in reception electric energy table side transmission line of electricity are simultaneously converted into room number, and compile with actual room
Number contrast is to judge whether to visit one house after another, and room number and the actual room numbering after such as converting are not consistent, then judgement is visited one house after another, and is otherwise recognized
Not visit one house after another.
In step S02, state parameter is electric current and phase angle, and it is detected by split-core type meter.Then inspection is passed through
Electric current and phase angle of the electric energy meter before and after characteristic load is put into are surveyed, it is poor using the size of current and angle that measure twice, adopt
Cosine law method is used, applied characteristic load electric current is calculated with whether putting into the theory characteristic load current after characteristic load
It is consistent to judge whether to visit one house after another.Wherein characteristic load Current calculation vectogram is as shown in fig. 7, whereinIt is characterized before load input
The vector value of the electric energy meter current measured, θ1ForPhase angle；It is characterized the electric energy meter current measured after load input
Vector value, θ2ForPhase angle；For line voltage distribution vector value；I1、I2、I0For virtual value.Then actual characteristic load currentComputational methods：
It can be obtained by the cosine law：
Characteristic load actual current can be calculated by formula (2), (3)Characteristic load theoretical currentCalculating side
Method：
The actual value and the size of theoretical value of characteristic load electric current after being put into by method comparison characteristic load, so as to judge
The subscribers' line, which whether there is, visits one house after another.After the test of whole electricity box is completed, according to all users and the test data of ammeter, from
And judge the situation of visiting one house after another of whole electricity box, and classification of visiting one house after another, and show wiring diagram.
In other embodiments, electric energy meter communication can also be obtained out of electric energy meter and obtains electric energy meter in characteristic load input
Front and rear state parameter (such as being obtained with electric energy meter infrared communication or RS485 communications), due to can not directly be read under communication mode
The phase value gone out between the voltage x current of electric energy meter, therefore can only be counter to push away by the voltage, electric current and realtime power of copy reading electric energy meter
Go out voltage current phase value, then using cosine law method, judge the method visited one house after another to judge the problem of visiting one house after another, detailed process is：
Before resident is single-phase meter, characteristic load input substantially, the electric energy meter voltage copied, electric current, realtime power
Virtual value be：U0、I1、P1；After characteristic load input, the electric energy meter voltage copied, electric current, the virtual value of realtime power are：
U0、I2、P2, wherein
P1=U0I1cosθ1 (5)
P2=U0I2cosθ2 (6)
θ can be calculated by formula (5), (6)1、θ2, recycle formula (2), (3) that characteristic load actual current can be calculatedCharacteristic load theoretical current is calculated using formula (4)Other deterministic processes of visiting one house after another are consistent with split-core type meter pattern, herein no longer
Repeat.
In the present embodiment, in the case where transmission line of electricity is without electricity, step S101 detailed process is as follows：Actual room is compiled
Number binary coding is converted into, input and each code in binary coding (as from left to right) successively into the transmission line of electricity of user side
The corresponding level signal of member, when code element is 1, live wire input high level signal into the transmission line of electricity of user side (as+
5V), zero line input low level signal, when code element is 0, the live wire input low level signal into the transmission line of electricity of user side,
Zero line input high level signal；Or when code element is 1, the live wire input low level signal into the transmission line of electricity of user side,
Zero line input high level signal, when code element is 0, the live wire input high level signal into the transmission line of electricity of user side, zero line
Input low level signal.In electric energy table side, by detecting the level signal in transmission line of electricity and being converted into room number, and with reality
Border room number contrast is to judge whether to visit one house after another, while can also sentence according to the change logic of level signal in user side transmission line of electricity
Live wire off zero.
The utility model can widen the application of product progress is visited one house after another test with electric line without electricity or in the case of power transmission
Scope, it is adaptable to which newly-built and transformation cell is visited one house after another inspection；Realize the Intelligent Measurement of problems of visiting one house after another all to all kinds of electric energy meters, energy
Inspection of visiting one house after another is carried out to intelligent electric meter or mechanical electricity meter, quick, accurate lookup line zero live wire is visited one house after another, single zero line is visited one house after another, Dan Huo
The wiring such as line is visited one house after another, zero live wire reversal connection, the short circuit between zero fire and supply line's open circuit are abnormal；Multi-way detecting function is realized, can
Carry out multiple (such as 36) user loop detections simultaneously；Testing result wiring diagram can be automatically generated, as shown in Figure 10；Realize existing
Field meter marketing archives verification, can import marketing system customer profile information control unit (as slapped machine), scene verification client
Information, meter bar code information, batch meter bar code information and the uniformity of marketing archives, prevent archive information typing mistake and make
Into situation of visiting one house after another.
Further labor, explanation are carried out with reference to the detection process being embodied to transmission line of electricity during without electricity：
Slave 2 mainly realizes signal output function, as shown in figure 5, OutL, OutN are that (OutL connects output signal during detection
Room live wire, OutN connects room zero line), OutL is exported by analog switch K1 (first switch), and OutN is by analog switch K2 (second
Switch) output.Control principle is：The MCU of slave 2 first send the signal that the room number of detection is carried out after digital coding, coding
McuKz ends, by McuKz simultaneously control K1, K2 analog switch act, such as McuKz be 0 when, K1, K2 disconnect, OutL be VCC (as+
5V), OutN is GND (such as 0V)；When McuKz is 1, K1, K2 adhesive, OutL are that GND, OutN are VCC.Therefore slave during normal work
2 export continuous ± 5V data signals by OutL, OutN.OutL, OutN signal will produce forward and reverse electric current in main frame 1, warp
Sample resistance is converted to digital voltage signal, and main frame 1 extracts voltage signal digital information, you can obtain the place room number of slave 2,
Zero line, live wire are distinguished simultaneously.
Main frame 1 realizes signal resolution function, circuit theory diagrams as shown in Figure 6 and Figure 7, wherein resistance R1, R2, R3, R4,
R5, R6, R7, R8 one end parallel connection are followed by GND, and the other end is connected by transmission line of electricity with OutL, OutN of slave 2, its resistance
It is equal in magnitude, the MCU of McuL1, McuN1, McuL2, McuN2, McuL3, McuN3, McuL4, McuN4 connection main frame 1 I/O inspections
Port is surveyed, main frame 1, slave 2 are connected by transmission line of electricity, R11, R12, R13, R14, R15, R16, R17, R18 are the signal of main frame 1
Sample resistance between input port and MCU detections port；During detection, OutL, OutN output ± 5V of slave 2 data signal
By any two groups of formation loops of R1~R8, due to R1~R8 common ports connection GND (reference ground), the MCU test sides of main frame 1
Two groups of generation level logic changes are had in McuL1, McuN1 ... McuL4, McuN4, the analysis change channel data of main frame 1 is extracted
The room information of slave 2, and the logic changed according to level, judge zero live wire position.For example, slave 2 sends room number
10110101 (being converted into binary number), the sense channel of main frame 1 has two-way and changed, and is all the way positive logic 10110101
(identical with slave 2), is all the way antilogical 01001010 (opposite with slave 2), and positive logic end necessarily connects with the OutL of slave 2
Connect, OutN of the antilogical end necessarily with slave 2 is connected, you can judge that the zero line, live wire and main frame 1 in the place room of slave 2 lead to
Road correspondence position.
Detection process is：After the power outlet of OutL, OutN access room of slave 2, the InL1 of main frame 1, InN1,
InL2, InN2, InL3, InN3, InL4, InN4 wherein two paths of signals line are connected by OutL, OutN of transmission line of electricity and slave 2
Connect, generation numeral is electric via R1~R8 resistor networks formation loop, and on resistor network for the current signal of OutL, OutN output
Signal is pressed to be detected for the MCU of main frame 1.Now with OutL-InL1 connections, analysis circuit water conservancy diversion exemplified by OutN-InN1 connections, when from
Machine 2 sends " 0 " → OutL (5V), OutN (0V) → 2 output currents of slave → electric current and formed through OutL, InL1, R1, R2, InN1
It is that " 1 ", InN1 are " 0 " that loop → GND and InL1 (+2.5V) → GND and the MCU of InN1 (- 2.5V) → main frame 1, which read InL1,；
When slave 2 sends " 1 " → OutL (0V), OutN (5V) → 2 output currents of slave → electric current through OutN1, InN1, R2, R1, InL1
The MCU reading InN1 for forming loop → GND and InN1 (+2.5V) → GND and InL1 (- 2.5V) → main frame 1 are " 1 ", InL1 is
“0”；According to circuit theory, as long as the data signal that slave 2 is sent passes through resistor network, just can correctly it be known by the MCU of main frame 1
Not.Preserve and shown after correct identification, then by result.
It the above is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited merely to above-mentioned
Embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should be pointed out that pair
For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from,
It should be regarded as protection domain of the present utility model.
Claims (5)
1. one kind is visited one house after another detection means with electric line, it is characterised in that including control unit, be installed on the main frame of electric energy table side
And the slave (2) that is installed in user side transmission line of electricity (1)；When transmission line of electricity has electricity, the slave (2) is used for power transmission line
Characteristic load is put into road, the main frame (1) is used to detect state parameter and transmission of the electric energy meter before and after characteristic load is put into
To slave (2), described control unit is connected with slave (2), for reception state parameter and analyzed to judge whether to visit one house after another；
When transmission line of electricity is without electricity, it is relative with the binary code that actual room is numbered that the slave (2) is used for the input into transmission line of electricity
The level signal answered, the main frame (1) is used to receive level signal and is converted into room number, and described control unit is used to receive
Room number simultaneously numbers contrast to judge whether to visit one house after another with actual room.
2. detection means according to claim 1 of being visited one house after another with electric line, it is characterised in that the characteristic load includes resistance
Unit, electric capacity, input switch and inductance, are switched and inductance with the input successively after the resistance unit is in parallel with the electric capacity
Series connection.
3. detection means according to claim 1 or 2 of being visited one house after another with electric line, it is characterised in that the main frame (1) with it is described
Electric energy meter is connected by communication, for obtaining state parameter of the electric energy meter before and after characteristic load is put into, the state parameter bag
Include voltage, electric current and power.
4. detection means according to claim 1 of being visited one house after another with electric line, it is characterised in that the slave (2) includes sealing in
The first switch of the live wire of the transmission line of electricity and seal in the transmission line of electricity zero line second switch, the first switch and
Second switch is used to carry out break-make according to the corresponding binary-coded code element of room coding with control input power supply.
5. detection means according to claim 4 of being visited one house after another with electric line, it is characterised in that the main frame (1) includes loop
Resistance and sample resistance, one end of each loop resistance are connected and are grounded, and the other end is connected with corresponding transmission line of electricity, the sampling
One end of resistance is connected with the other end of loop resistance, and the other end is connected with the I/O of the main frame (1).
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106443314A (en) * | 2016-11-29 | 2017-02-22 | 国网湖南省电力公司 | Electric consumption line missort detection method and device |
| CN107907788A (en) * | 2017-12-25 | 2018-04-13 | 国网上海市电力公司 | A kind of multi-epitope is visited one house after another examination device |
| CN108375712A (en) * | 2018-05-21 | 2018-08-07 | 潍坊五洲浩特电气有限公司 | Intelligent line inspection instrument |
| CN108957215A (en) * | 2018-05-08 | 2018-12-07 | 国网河南省电力公司郑州供电公司 | Family table checks and accepts anti-examination device and the investigation method of visiting one house after another |
| CN109375043A (en) * | 2018-09-30 | 2019-02-22 | 国网福建省电力有限公司南平供电公司 | One kind is visited one house after another detection system and its application method |
| CN109959840A (en) * | 2019-02-15 | 2019-07-02 | 广东电网有限责任公司 | A kind of user's table rapid aligning device |
| CN110568306A (en) * | 2019-07-30 | 2019-12-13 | 深圳供电局有限公司 | Electric energy meter misconnection detection method and computer equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443314A (en) * | 2016-11-29 | 2017-02-22 | 国网湖南省电力公司 | Electric consumption line missort detection method and device |
| CN107907788A (en) * | 2017-12-25 | 2018-04-13 | 国网上海市电力公司 | A kind of multi-epitope is visited one house after another examination device |
| CN108957215A (en) * | 2018-05-08 | 2018-12-07 | 国网河南省电力公司郑州供电公司 | Family table checks and accepts anti-examination device and the investigation method of visiting one house after another |
| CN108375712A (en) * | 2018-05-21 | 2018-08-07 | 潍坊五洲浩特电气有限公司 | Intelligent line inspection instrument |
| CN109375043A (en) * | 2018-09-30 | 2019-02-22 | 国网福建省电力有限公司南平供电公司 | One kind is visited one house after another detection system and its application method |
| CN109959840A (en) * | 2019-02-15 | 2019-07-02 | 广东电网有限责任公司 | A kind of user's table rapid aligning device |
| CN109959840B (en) * | 2019-02-15 | 2024-06-18 | 广东电网有限责任公司 | User table fast alignment device |
| CN110568306A (en) * | 2019-07-30 | 2019-12-13 | 深圳供电局有限公司 | Electric energy meter misconnection detection method and computer equipment |
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