The content of the invention
Based on this, it is necessary to complicated for aforesaid operations, the problem of efficiency is low is there is provided a kind of detection of electric energy meter house lead in
System and its detection method.
A kind of electric energy meter house lead in detecting system, including:Module, current sampling module, solution occur for coder module, electric current
Code device module, coding comparing module;
By electric current the user side electric power line loop that module is connected to scene occurs for the coder module;The electric current takes
Egf block connects the user side electric power line loop, and is connected to coding comparing module by decoder module;
The coder module is used to form specific coding information, and module occurs for output to electric current;The electric current occurs
Module produces the current signal containing coding information according to the coding information, and injects in user side electric power line loop;
The current sampling module is used to extract the curent change information in the electric power line loop, and exports to solution
Code device module;The decoder module forms coding information according to the curent change information and exported to coding comparing module;Institute
State coding comparing module and the coding information and the coded data that prestores are subjected to aspect ratio pair, determine electric energy meter house lead in state.
A kind of detection method based on described electric energy meter house lead in detecting system, including:Occur using the electric current of main frame
Module is inserted on the power frequency socket in user room;And using the current sampling module of slave, respectively in each user side electric power
Detected on line loop, confirm receive customizing messages code when, confirm corresponding family table relation.
Above-mentioned electric energy meter house lead in detecting system and its detection method, occur module by electric current by coder module and produce
The raw current signal containing coding information, and inject in user side electric power line loop, current sampling module extracts electric power line loop
In curent change information by decoder module formation coding information, then entered with the coded data that prestores by encoding comparing module
Row aspect ratio pair, finally determines electric energy meter house lead in state.The technical scheme can be in the feelings for being not involved in electric power system, not having a power failure
Under condition, realize and simple to operate, efficiency high, which is adapted to built on stilts, quick and precisely to be detected to the correlation behavior of electric energy meter house lead in
Line, the various power utilization environments such as secretly sunken cord, exempt from intervention and do not have a power failure to avoid the state of affairs from expanding, quick detection is particularly suitable for power system
O&M field.
Embodiment
The electric energy meter house lead in detecting system of the present invention and its embodiment of detection method are illustrated below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, Fig. 1 is the electric energy meter house lead in detecting system structural representation of one embodiment, including:Coding
Module, current sampling module, decoder module, coding comparing module occur for device module, electric current;
By electric current the user side electric power line loop that module is connected to scene occurs for the coder module;The electric current takes
Egf block connects the user side electric power line loop (power line in figure), and is connected to encoding ratio to mould by decoder module
Block;
The coder module is used to form specific coding information, and module occurs for output to electric current;The electric current occurs
Module produces the current signal containing coding information according to the coding information, and injects in user side electric power line loop;
The current sampling module is used to extract the curent change information in the electric power line loop, and exports to solution
Code device module;The decoder module forms coding information according to the curent change information and exported to coding comparing module;Institute
State coding comparing module and the coding information and the coded data that prestores are subjected to aspect ratio pair, determine electric energy meter house lead in state.
Electric energy meter house lead in detecting system based on above-described embodiment, occurs module by electric current by coder module and produces
The raw current signal containing coding information, and inject in user side electric power line loop, current sampling module extracts electric power line loop
In curent change information by decoder module formation coding information, then entered with the coded data that prestores by encoding comparing module
Row aspect ratio pair, finally determines electric energy meter house lead in state.The technical scheme can be in the feelings for being not involved in electric power system, not having a power failure
Under condition, realize and simple to operate, efficiency high, which is adapted to built on stilts, quick and precisely to be detected to the correlation behavior of electric energy meter house lead in
Line, the various power utilization environments such as secretly sunken cord, exempt from intervention and do not have a power failure to avoid the state of affairs from expanding, quick detection is particularly suitable for power system
O&M field.
In one embodiment, with reference to Fig. 1, the electric energy meter house lead in detecting system can also include result treatment module,
For producing corresponding cue according to the comparison result of the coding comparing module;Can be timely by result treatment module
The result that prompting user detects, is easy to operate with.
In one embodiment, the coding information includes condition code and information code;Wherein, condition code is used for decoder mould
Block is captured, and information code is used to carry customizing messages;By condition code, follow-up decoder module can be conducive to be caught
The current signal of injection is obtained, the bit error rate can be reduced by information code.
In one embodiment, for the coder module, coding information output, feeding can periodically be produced.Enter
One step, module occurs for the electric current according to the coding information, periodically triggers electronic switch, break-make using encoded signal
Electronic load, injects the current signal of the change containing coding information in user side electric power line loop.
In one embodiment, the current sampling module uses non-access current clamp in user side electric power line loop
Current information extraction is carried out, current signal is converted into by voltage signal by sample resistance and exported to decoder module;The solution
Code device module is sampled to the voltage signal, and forms coding information after sampled data is quantified;After above-mentioned processing,
It is easy to sampled data being quantified as coding information, improves data processing accuracy.
In one embodiment, the coding information of the coding comparing module Rcv decoder module input;By coding letter
Information code in breath match comparing with prestored information code;If matching compares unsuccessful, generation decoding enabling signal feeding
Decoder module is again started up decoding;Further, if matching is compared successfully, the coding comparing module will determine that result is inputted
Result treatment module, the result treatment module exports acousto-optic hint signal.
By above-described embodiment scheme, matching compares unsuccessful continuation decoding data, and circulation matching is matched to compare and successfully said
It is bright to detect corresponding signal specific, pass through acousto-optic hint user.
In one embodiment, with reference to shown in Fig. 2, Fig. 2 is the electric energy meter house lead in detecting system knot of another embodiment
Module composition main frame, the current sampling module, decoder module and volume occur for structure schematic diagram, the coder module and electric current
Code comparing module constitutes slave;The electric current occurs module and is connected on the power frequency socket of interior, and the current sampling module connects
Connect on each user side electric power line loop in electricity box.
Designed by main frame and slave, ease of use can be improved, main frame can be inserted into the power frequency in user room
On socket, detected using slave on each user side electric power line loop in electricity box, the ammeter in centralized electricity box
User side detects code current, it is determined that accurate family table corresponding relation.For example, determining to report the ammeter belonging to user for repairment, without power-off
It can realize and electric energy meter house lead in misconnection failure is accurately detected in the case where not cutting off user's power supply.
With reference to shown in Fig. 3, Fig. 3 is the utilization electric energy meter house lead in detection system provided in an embodiment of the present invention of one embodiment
The detection method schematic diagram of system, it is characterised in that including:Occurs the power frequency that module is inserted into user room using the electric current of main frame
On socket;And using the current sampling module of slave, detected, confirmed on each user side electric power line loop respectively
When receiving customizing messages code, corresponding family table relation is confirmed.
For example, in for the application of the investigation of electric energy meter house lead in misconnection (family table is not inconsistent) problem, by electric energy meter house lead in
Detecting system is divided into main frame and slave (hand-held receiving device).Main frame is connected directly between on the power frequency socket reported for repairment in user room,
The current signal of specific frequency and coding is produced, the current signal receives and parses through the signal by hand-held receiving device, and then really
Whether the loop that the fixed electric current occurs belongs to specific electric energy meter.Because the current signal only appears in unique electric energy meter
The end of incoming cables of leading-out terminal and this unit meter, without in the outlet port of other electric energy meters, with uniqueness, thus can
To realize being accurately positioned for family table.
As can be seen here, there is the principle of independence using the user side loop current of different ammeters, can be produced at failure end
The current signal of raw specific coding, detects code current, so that it is determined that reporting for repairment by the ammeter user side in centralized electricity box
Ammeter belonging to user, can be realized to electric energy meter house lead in misconnection without power-off in the case where not cutting off user's power supply
Failure is accurately detected.Due to the state to electric energy meter house lead in can be realized in the case where being not involved in electric power system, not having a power failure
Quick and precisely detect;The various power utilization environments such as it is particularly adapted to overhead line, secretly sunkens cord, exempts from intervention and do not have a power failure to avoid the state of affairs from expanding,
Quick detection, is particularly suitable for power system O&M field.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.