CN105699721A - Use method of electric energy meter with automatic detection function for outer frame damage - Google Patents
Use method of electric energy meter with automatic detection function for outer frame damage Download PDFInfo
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
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Abstract
The invention relates to an electric energy meter with automatic detection function for outer frame damage. The electric energy meter comprises three-phase electric energy metering equipment, outer frame detecting equipment and a main controller. The three-phase electric energy metering equipment is used for determining active power, reactive power and apparent power of each phase and a combined phase in a three-phase electric power line. The outer frame detecting equipment is used for detecting the outer frame characteristic of the electric energy meter. The main controller is connected with the three-phase electric energy metering equipment and the outer frame detecting equipment and is used for making the three-phase electric energy metering equipment determine the outer frame damage degree of the electric energy meter based on the outer frame characteristic of the electric energy meter. Through the electric energy meter, self detection for damage degree of the electric energy meter can be realized.
Description
Technical field
The present invention relates to electric energy meter field, particularly relate to the using method of the damaged electric energy meter of detection automatically of a kind of housing。
Background technology
For civilian electric energy meter, it is typically installed at the position of every layer of staircase of residential building, for the real-time power consumption at a family or many families is measured, and reports to the police in time when user prestores electricity deficiency, corresponding resident is reminded to be charged, to avoid situation about having a power failure to occur。
Electric energy meter is in use, due to ambient pressure or use for a long time, there is damaged possibility in its housing, once housing is damaged, then electric energy meter internal component easily comes out, properly functioning to electric energy meter itself works the mischief, such as causing that internal component damages, certainty of measurement declines, simultaneously, also easily resident gets an electric shock, and adds the insecurity that electric energy meter uses。
Accordingly, it would be desirable in the use procedure of electric energy meter, regularly electric energy meter is carried out equipment inspection, especially the inspection of housing, when finding to exist housing breakage, changes housing in time, even change electric energy meter, thus avoiding electric energy meter destroyed and avoiding resident to get an electric shock。
But, in prior art, the equipment inspection of civilian electric energy meter is usually and is regularly scheduled staff by electric power equipment management center and make an inspection tour, excessively rely on artificial experience, and equipment inspection is not real-time, it is easy to occur making an inspection tour interval time long without finding the situation that electric energy meter housing is damaged in time, additionally, if being the electronic equipment of the housing inspection custom-made independence of electric energy meter, disposing one for each electric energy meter, then occupying too much equipment public space。Meanwhile, the accuracy of detection of existing electric energy meter is not high, it is necessary to optimizes testing mechanism, improves its detection efficiency to alternating current circuit parameters。
Therefore, need the electric energy meter of the damaged detection automatically of a kind of housing, the measurement mechanism of the electrical energy parameter of electric energy meter can be optimized, improve its accuracy of detection, the housing breakage of electric energy meter can be detected in real time simultaneously, report to the police in time when finding housing breakage, to avoid occurring with electrification。
Summary of the invention
In order to solve the problems referred to above, the invention provides the electric energy meter of the damaged detection automatically of a kind of housing, saving equipment public space, the electric energy meter at the staircase place that each resident in prior art uses is carried out performance optimization, improve its detection accuracy to electricity, also introduce targetedly, high-precision image detecting technique is to determine the matching degree between electric energy meter framed picture and default gray scale benchmark housing, and determine whether output housing normal signal based on matching degree, there is breakage signal or housing badly broken signal in housing, thus the voting plan of changing for electric administrative department provides data basis。
According to an aspect of the present invention, provide the electric energy meter of the damaged detection automatically of a kind of housing, including three-phase electric energy metering equipment, housing detection equipment and master controller, three-phase electric energy metering equipment is for determining the active power of each phase and conjunction phase in three-phase power circuit, reactive power and apparent energy, housing detection equipment is for detecting the housing feature of described electric energy meter, master controller detects equipment with three-phase electric energy metering equipment and housing respectively and is connected, for controlling three-phase electric energy metering equipment and the housing feature based on described electric energy meter determines the housing damaged degree of described electric energy meter。
More specifically, in the electric energy meter of the damaged detection automatically of described housing, including: current sensor, it is connected with three-phase power circuit, for the current signal in three-phase power circuit being carried out size conversion, export the micro-current signal less relative to the current signal in three-phase power circuit；Voltage sensor, is connected with three-phase power circuit, for the voltage signal in three-phase power circuit is carried out size conversion, exports the micro voltage signal less relative to the voltage signal in three-phase power circuit；Anti-aliasing Filter Circuits, is connected with current sensor and voltage sensor respectively, for the micro-current signal received and micro voltage signal are carried out anti-aliasing filter process, with the micro-current signal after output processing and micro voltage signal；Three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, determines each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit based on the micro-current signal after processing and micro voltage signal；Rectifying installation, is connected with three-phase power circuit, and being used for the AC rectification of three-phase power circuit is unidirectional current；Pressure stabilizing device, is connected with rectifying installation, for unidirectional current is carried out voltage stabilizing process；Potential device, is connected with pressure stabilizing device, processes for the unidirectional current after voltage stabilizing carries out transformation to obtain the running voltage required for each electronic equipment, and the running voltage required for each electronic equipment includes 36V, 12V, 5V and 3.3V；Calendar clock equipment, including calendar clock chip and lithium battery, calendar clock chip is used for providing real time clock data, it is connected also by synchronous serial interface I2C and Ling Yang SPCE061A chip, lithium battery is connected with calendar clock chip, for providing non-firm power support for calendar clock chip under powering-off state；Liquid crystal display, including segment liquid crystal display driver and a LCDs, a segment liquid crystal display driver is connected by synchronous serial interface I2C and Ling Yang SPCE061A chip, for controlling the display content in LCDs；FLASH storage device, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip, and FLASH storage device is additionally operable to store default gray scale benchmark housing；Integrated Communication Devices, it is connected with Ling Yang SPCE061A chip, including infrared transmitter, infrared remote receiver, optocoupler, RS485 driver and RS485 communication interface, infrared transmitter adopts the modulation light of 38kHz, infrared remote receiver adopts open collector mode to export the digital signal demodulating out from the infrared light received, RS485 driver is connected with RS485 communication interface, and optocoupler for being isolated from RS485 driver and RS485 communication interface by infrared transmitter and infrared remote receiver；High-definition camera, is arranged on the top of electric energy meter, and the housing towards electric energy meter shoots, to obtain high definition framed picture；Complexity detection equipment, is connected with high-definition camera, is used for receiving high definition framed picture image, and calculates based on high definition framed picture image and export image complexity；Gray scale converting apparatus, it is connected with high-definition camera, for receiving high definition framed picture image, for each pixel in high definition framed picture image, extract its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component to give different weighted values average to be weighted, to obtain the gray value of correspondence, the gray value composition gray level image of all pixels, wherein R, G, B tri-weighted value respectively 0.3,0.59 and 0.11 of Color Channel component；Image filtering equipment, detect equipment with complexity respectively and gray scale converting apparatus is connected, for determining the filtering strategies of selection based on image complexity, when image complexity is below default complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when image complexity is more than default complexity range limit, select mean filter strategy that gray level image is filtered, when image complexity is within default complexity scope, select medium filtering strategy that gray level image is filtered；Overall situation binarizing apparatus, detect equipment with complexity respectively and image filtering equipment is connected, for determining the determination strategy of overall situation binary-state threshold based on image complexity, after determining overall situation binary-state threshold, use overall situation binary-state threshold that gray level image is carried out binary conversion treatment, the pixel value making the binary image after processing only has 0 or 255 these two kinds selections, wherein determine that the determination strategy of overall situation binary-state threshold specifically includes based on image complexity: when image complexity is below default complexity range lower limit, Two-peak method is adopted to determine overall situation binary-state threshold, when image complexity is more than default complexity range limit, maximum variance between clusters is adopted to determine overall situation binary-state threshold, when image complexity is within default complexity scope, mean value method is adopted to determine overall situation binary-state threshold；Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, processes for binary image is sequentially carried out rotation correction process, redundancy cutting process and image normalization, to obtain correction chart picture；Contour detecting equipment, it is connected with image correcting device and gray scale converting apparatus respectively, for based on the position of electric energy meter housing in default electric energy meter housing contour detecting correction chart picture, and it is partitioned into the electric energy meter framed picture of correspondence from gray level image based on the position of electric energy meter housing in correction chart picture；Ling Yang SPCE061A chip, it is connected with contour detecting equipment and FLASH storage device, for determining the matching degree between electric energy meter framed picture and default gray scale benchmark housing, and determine whether that breakage signal or housing badly broken signal occur in output housing normal signal, housing based on matching degree；Wireless communication interface, it is connected with Ling Yang SPCE061A chip, for housing normal signal, housing are occurred that breakage signal or housing badly broken signal are sent to the electric power equipment management center of far-end, in order to there is electric power equipment management center to determine the need for changing electric energy meter；Wherein, Ling Yang SPCE061A chip is also connected with potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment respectively, operate for realizing the control to potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment, be additionally operable to receive each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit from three-phase electric energy metering equipment；Wherein, the AT45DB081 chip that FLASH storage device adopts capacity to be 1M byte。
More specifically, in the electric energy meter of the damaged detection automatically of described housing: wireless communication interface is the one in GPRS communication interface, 3G communication interface and 4G communication interface。
More specifically, in the electric energy meter of the damaged detection automatically of described housing: the traffic rate that infrared transmitter adopts is 1200bps。
More specifically, in the electric energy meter of the damaged detection automatically of described housing: Ling Yang SPCE061A chip adopts built-in FLASH storage device to replace FLASH storage device。
More specifically, in the electric energy meter of the damaged detection automatically of described housing: breakage signal or housing badly broken signal occurs in liquid crystal display be additionally operable to display bounding box normal signal, housing。
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the damaged electric energy meter of detection automatically of the housing illustrated according to an embodiment of the present invention。
Accompanying drawing labelling: 1 three-phase electric energy metering equipment；2 housing detection equipment；3 master controllers
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the damaged electric energy meter of detection automatically of the housing of the present invention is described in detail。
Electric energy meter is used to measure the instrument of electric energy, also known as kilowatt-hour meter, electric energy meter, kilowatt-hour table, refers to measure the instrument of various electrical quantities。
Electric energy meter divides by purposes, can be divided into: active electric energy meter, reactive energy-meter, maximum demand meter, standard electric energy meter, multi tariff time-sharing electric energy meter, prepayment meter (point coin-feed, magnetic card type, electric card type), loss electric energy meter, multifunctional electric energy meter and intelligent electric energy meter。
Electric energy meter divides by operation principle, can be divided into: vicarious (mechanical type), state type (electronic type), electromechanical (hybrid)。
Electric energy meter divides by accessing phase line, can be divided into single-phase, phase three-wire three, three-phase and four-line electric energy meter。
Currently, lacking special electric energy meter housing breakage care testing device, and the structural redundancy of existing electric energy meter is too much, detection efficiency is low, simultaneously need to electric energy meter housing breakage care testing device is integrated in electric energy meter structure, to save originally crowded common equipment space。
In order to overcome above-mentioned deficiency, the present invention has built the electric energy meter of the damaged detection automatically of a kind of housing, the structure of electric energy meter is improved, and the housing breakage of electric energy meter can be detected in real time, thus when avoiding waste common equipment space, improving the intelligent level of electric energy meter。
Fig. 1 is the block diagram of the damaged electric energy meter of detection automatically of the housing illustrated according to an embodiment of the present invention, including three-phase electric energy metering equipment, housing detection equipment and master controller, three-phase electric energy metering equipment is for determining the active power of each phase and conjunction phase in three-phase power circuit, reactive power and apparent energy, housing detection equipment is for detecting the housing feature of described electric energy meter, master controller detects equipment with three-phase electric energy metering equipment and housing respectively and is connected, for controlling three-phase electric energy metering equipment and the housing feature based on described electric energy meter determines the housing damaged degree of described electric energy meter。
Then, the concrete structure continuing the damaged electric energy meter of detection automatically of the housing to the present invention is further detailed。
Described electric energy meter includes: current sensor, is connected with three-phase power circuit, for the current signal in three-phase power circuit is carried out size conversion, exports the micro-current signal less relative to the current signal in three-phase power circuit；Voltage sensor, is connected with three-phase power circuit, for the voltage signal in three-phase power circuit is carried out size conversion, exports the micro voltage signal less relative to the voltage signal in three-phase power circuit；Anti-aliasing Filter Circuits, is connected with current sensor and voltage sensor respectively, for the micro-current signal received and micro voltage signal are carried out anti-aliasing filter process, with the micro-current signal after output processing and micro voltage signal。
Described electric energy meter includes: three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, determines each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit based on the micro-current signal after processing and micro voltage signal；Rectifying installation, is connected with three-phase power circuit, and being used for the AC rectification of three-phase power circuit is unidirectional current；Pressure stabilizing device, is connected with rectifying installation, for unidirectional current is carried out voltage stabilizing process；Potential device, is connected with pressure stabilizing device, processes for the unidirectional current after voltage stabilizing carries out transformation to obtain the running voltage required for each electronic equipment, and the running voltage required for each electronic equipment includes 36V, 12V, 5V and 3.3V。
Described electric energy meter includes: calendar clock equipment, including calendar clock chip and lithium battery, calendar clock chip is used for providing real time clock data, it is connected also by synchronous serial interface I2C and Ling Yang SPCE061A chip, lithium battery is connected with calendar clock chip, for providing non-firm power support for calendar clock chip under powering-off state；Liquid crystal display, including segment liquid crystal display driver and a LCDs, a segment liquid crystal display driver is connected by synchronous serial interface I2C and Ling Yang SPCE061A chip, for controlling the display content in LCDs；FLASH storage device, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip, and FLASH storage device is additionally operable to store default gray scale benchmark housing。
Described electric energy meter includes: Integrated Communication Devices, it is connected with Ling Yang SPCE061A chip, including infrared transmitter, infrared remote receiver, optocoupler, RS485 driver and RS485 communication interface, infrared transmitter adopts the modulation light of 38kHz, infrared remote receiver adopts open collector mode to export the digital signal demodulating out from the infrared light received, RS485 driver is connected with RS485 communication interface, and optocoupler for being isolated from RS485 driver and RS485 communication interface by infrared transmitter and infrared remote receiver。
Described electric energy meter includes: high-definition camera, is arranged on the top of electric energy meter, and the housing towards electric energy meter shoots, to obtain high definition framed picture；Complexity detection equipment, is connected with high-definition camera, is used for receiving high definition framed picture image, and calculates based on high definition framed picture image and export image complexity；Gray scale converting apparatus, it is connected with high-definition camera, for receiving high definition framed picture image, for each pixel in high definition framed picture image, extract its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component to give different weighted values average to be weighted, to obtain the gray value of correspondence, the gray value composition gray level image of all pixels, wherein R, G, B tri-weighted value respectively 0.3,0.59 and 0.11 of Color Channel component。
Described electric energy meter includes: image filtering equipment, detect equipment with complexity respectively and gray scale converting apparatus is connected, for determining the filtering strategies of selection based on image complexity, when image complexity is below default complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when image complexity is more than default complexity range limit, select mean filter strategy that gray level image is filtered, when image complexity is within default complexity scope, select medium filtering strategy that gray level image is filtered。
Described electric energy meter includes: overall situation binarizing apparatus, detect equipment with complexity respectively and image filtering equipment is connected, for determining the determination strategy of overall situation binary-state threshold based on image complexity, after determining overall situation binary-state threshold, use overall situation binary-state threshold that gray level image is carried out binary conversion treatment, the pixel value making the binary image after processing only has 0 or 255 these two kinds selections, wherein determine that the determination strategy of overall situation binary-state threshold specifically includes based on image complexity: when image complexity is below default complexity range lower limit, Two-peak method is adopted to determine overall situation binary-state threshold, when image complexity is more than default complexity range limit, maximum variance between clusters is adopted to determine overall situation binary-state threshold, when image complexity is within default complexity scope, mean value method is adopted to determine overall situation binary-state threshold。
Described electric energy meter includes: image correcting device, is connected to receive binary image with overall situation binarizing apparatus, processes for binary image is sequentially carried out rotation correction process, redundancy cutting process and image normalization, to obtain correction chart picture；Contour detecting equipment, it is connected with image correcting device and gray scale converting apparatus respectively, for based on the position of electric energy meter housing in default electric energy meter housing contour detecting correction chart picture, and it is partitioned into the electric energy meter framed picture of correspondence from gray level image based on the position of electric energy meter housing in correction chart picture。
Described electric energy meter includes: Ling Yang SPCE061A chip, it is connected with contour detecting equipment and FLASH storage device, for determining the matching degree between electric energy meter framed picture and default gray scale benchmark housing, and determine whether that breakage signal or housing badly broken signal occur in output housing normal signal, housing based on matching degree；Wireless communication interface, it is connected with Ling Yang SPCE061A chip, for housing normal signal, housing are occurred that breakage signal or housing badly broken signal are sent to the electric power equipment management center of far-end, in order to there is electric power equipment management center to determine the need for changing electric energy meter。
Wherein, Ling Yang SPCE061A chip is also connected with potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment respectively, operate for realizing the control to potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment, be additionally operable to receive each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit from three-phase electric energy metering equipment。
Wherein, the AT45DB081 chip that FLASH storage device adopts capacity to be 1M byte。
Alternatively, in described electric energy meter: wireless communication interface is the one in GPRS communication interface, 3G communication interface and 4G communication interface；The traffic rate that infrared transmitter adopts is 1200bps；Ling Yang SPCE061A chip adopts built-in FLASH storage device to replace FLASH storage device；And there is breakage signal or housing badly broken signal in liquid crystal display can be also used for displaying bounding box normal signal, housing。
It addition, from the technical Analysis of electric energy meter, the major programme of current power industry electric energy measurement instrument is typically all based semiconductor technology and realizes accurate measurement purpose。Electric energy meter is generally individually have employed high-precision A/D converter, undertaken sampling and analog digital conversion by the voltage of electrical network, current signal, then utilizing high speed microprocessor that digital signal is analyzed, processing and data reprocessing, sorting, thus producing various continuous data；Various communication interface, man machine interface is finally utilized to realize docking with various equipment。
Electric energy meter is the product that Sampling techniques, microprocessing, designing technique and experience combine, and is high-tech product interdisciplinary。Electric energy meter manufacturer is according to the understanding self designed and applicating skill, it is achieved the various functions of electric energy meter。On electric energy meter product, multi-functional, networking, intellectuality, digitized demand are had been provided with at present, disclosure satisfy that the requirement of current various metering, as meritorious metering, reactive measurement, requirement calculate, the sophisticated functions such as power grid quality detection, grid event record, and data interaction can be carried out as communication slave station with control main website of central authorities。
Adopt the electric energy meter of the damaged detection automatically of housing of the present invention, the technical problem that electric energy meter housing is detected in real time cannot be realized while improving electric energy meter performance for prior art, detection platform is mounted on electric energy meter to avoid waste common equipment space, by improving electric energy meter structure accurately to determine each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit, detect equipment for detecting the housing feature of electric energy meter by housing, and determine the housing damaged degree of described electric energy meter based on the housing feature of described electric energy meter。
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment is not limited to the present invention。For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations。Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the scope of technical solution of the present invention protection。
Claims (6)
1. a using method for the damaged electric energy meter of detection automatically of housing, the method includes:
1) electric energy meter of the damaged detection automatically of a kind of housing is provided, including three-phase electric energy metering equipment, housing detection equipment and master controller, three-phase electric energy metering equipment is for determining each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit, housing detection equipment is for detecting the housing feature of described electric energy meter, master controller detects equipment with three-phase electric energy metering equipment and housing respectively and is connected, is used for controlling three-phase electric energy metering equipment and the housing feature based on described electric energy meter determines the housing damaged degree of described electric energy meter；
2) this electric energy meter is used。
2. the method for claim 1, it is characterised in that described electric energy meter includes:
Current sensor, is connected with three-phase power circuit, for the current signal in three-phase power circuit is carried out size conversion, exports the micro-current signal less relative to the current signal in three-phase power circuit；
Voltage sensor, is connected with three-phase power circuit, for the voltage signal in three-phase power circuit is carried out size conversion, exports the micro voltage signal less relative to the voltage signal in three-phase power circuit；
Anti-aliasing Filter Circuits, is connected with current sensor and voltage sensor respectively, for the micro-current signal received and micro voltage signal are carried out anti-aliasing filter process, with the micro-current signal after output processing and micro voltage signal；
Three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, determines each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit based on the micro-current signal after processing and micro voltage signal；
Rectifying installation, is connected with three-phase power circuit, and being used for the AC rectification of three-phase power circuit is unidirectional current；
Pressure stabilizing device, is connected with rectifying installation, for unidirectional current is carried out voltage stabilizing process；
Potential device, is connected with pressure stabilizing device, processes for the unidirectional current after voltage stabilizing carries out transformation to obtain the running voltage required for each electronic equipment, and the running voltage required for each electronic equipment includes 36V, 12V, 5V and 3.3V；
Calendar clock equipment, including calendar clock chip and lithium battery, calendar clock chip is used for providing real time clock data, it is connected also by synchronous serial interface I2C and Ling Yang SPCE061A chip, lithium battery is connected with calendar clock chip, for providing non-firm power support for calendar clock chip under powering-off state；
Liquid crystal display, including segment liquid crystal display driver and a LCDs, a segment liquid crystal display driver is connected by synchronous serial interface I2C and Ling Yang SPCE061A chip, for controlling the display content in LCDs；
FLASH storage device, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip, and FLASH storage device is additionally operable to store default gray scale benchmark housing；
Integrated Communication Devices, it is connected with Ling Yang SPCE061A chip, including infrared transmitter, infrared remote receiver, optocoupler, RS485 driver and RS485 communication interface, infrared transmitter adopts the modulation light of 38kHz, infrared remote receiver adopts open collector mode to export the digital signal demodulating out from the infrared light received, RS485 driver is connected with RS485 communication interface, and optocoupler for being isolated from RS485 driver and RS485 communication interface by infrared transmitter and infrared remote receiver；
High-definition camera, is arranged on the top of electric energy meter, and the housing towards electric energy meter shoots, to obtain high definition framed picture；
Complexity detection equipment, is connected with high-definition camera, is used for receiving high definition framed picture image, and calculates based on high definition framed picture image and export image complexity；
Gray scale converting apparatus, it is connected with high-definition camera, for receiving high definition framed picture image, for each pixel in high definition framed picture image, extract its R, G, B tri-Color Channel component, to R, G, B tri-Color Channel component to give different weighted values average to be weighted, to obtain the gray value of correspondence, the gray value composition gray level image of all pixels, wherein R, G, B tri-weighted value respectively 0.3,0.59 and 0.11 of Color Channel component；
Image filtering equipment, detect equipment with complexity respectively and gray scale converting apparatus is connected, for determining the filtering strategies of selection based on image complexity, when image complexity is below default complexity range lower limit, select gaussian filtering strategy that gray level image is filtered, when image complexity is more than default complexity range limit, select mean filter strategy that gray level image is filtered, when image complexity is within default complexity scope, select medium filtering strategy that gray level image is filtered；
Overall situation binarizing apparatus, detect equipment with complexity respectively and image filtering equipment is connected, for determining the determination strategy of overall situation binary-state threshold based on image complexity, after determining overall situation binary-state threshold, use overall situation binary-state threshold that gray level image is carried out binary conversion treatment, the pixel value making the binary image after processing only has 0 or 255 these two kinds selections, wherein determine that the determination strategy of overall situation binary-state threshold specifically includes based on image complexity: when image complexity is below default complexity range lower limit, Two-peak method is adopted to determine overall situation binary-state threshold, when image complexity is more than default complexity range limit, maximum variance between clusters is adopted to determine overall situation binary-state threshold, when image complexity is within default complexity scope, mean value method is adopted to determine overall situation binary-state threshold；
Image correcting device, is connected to receive binary image with overall situation binarizing apparatus, processes for binary image is sequentially carried out rotation correction process, redundancy cutting process and image normalization, to obtain correction chart picture；
Contour detecting equipment, it is connected with image correcting device and gray scale converting apparatus respectively, for based on the position of electric energy meter housing in default electric energy meter housing contour detecting correction chart picture, and it is partitioned into the electric energy meter framed picture of correspondence from gray level image based on the position of electric energy meter housing in correction chart picture；
Ling Yang SPCE061A chip, it is connected with contour detecting equipment and FLASH storage device, for determining the matching degree between electric energy meter framed picture and default gray scale benchmark housing, and determine whether that breakage signal or housing badly broken signal occur in output housing normal signal, housing based on matching degree；
Wireless communication interface, it is connected with Ling Yang SPCE061A chip, for housing normal signal, housing are occurred that breakage signal or housing badly broken signal are sent to the electric power equipment management center of far-end, in order to there is electric power equipment management center to determine the need for changing electric energy meter；
Wherein, Ling Yang SPCE061A chip is also connected with potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment respectively, operate for realizing the control to potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment, be additionally operable to receive each phase and the conjunction active power of phase, reactive power and apparent energy in three-phase power circuit from three-phase electric energy metering equipment；
Wherein, the AT45DB081 chip that FLASH storage device adopts capacity to be 1M byte。
3. method as claimed in claim 2, it is characterised in that:
Wireless communication interface is the one in GPRS communication interface, 3G communication interface and 4G communication interface。
4. method as claimed in claim 2, it is characterised in that:
The traffic rate that infrared transmitter adopts is 1200bps。
5. method as claimed in claim 2, it is characterised in that:
Ling Yang SPCE061A chip adopts built-in FLASH storage device to replace FLASH storage device。
6. method as claimed in claim 2, it is characterised in that:
There is breakage signal or housing badly broken signal in liquid crystal display be additionally operable to display bounding box normal signal, housing。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610417018.0A CN107228965A (en) | 2016-03-25 | 2016-03-25 | A kind of electric energy meter of the damaged automatic detection of housing |
| CN201610179381.3A CN105699721A (en) | 2016-03-25 | 2016-03-25 | Use method of electric energy meter with automatic detection function for outer frame damage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610179381.3A CN105699721A (en) | 2016-03-25 | 2016-03-25 | Use method of electric energy meter with automatic detection function for outer frame damage |
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| CN201610417018.0A Division CN107228965A (en) | 2016-03-25 | 2016-03-25 | A kind of electric energy meter of the damaged automatic detection of housing |
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| CN201610179381.3A Pending CN105699721A (en) | 2016-03-25 | 2016-03-25 | Use method of electric energy meter with automatic detection function for outer frame damage |
| CN201610417018.0A Withdrawn CN107228965A (en) | 2016-03-25 | 2016-03-25 | A kind of electric energy meter of the damaged automatic detection of housing |
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