CN105785120A - Intelligent utility electric meter - Google Patents
Intelligent utility electric meter Download PDFInfo
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- CN105785120A CN105785120A CN201610299090.8A CN201610299090A CN105785120A CN 105785120 A CN105785120 A CN 105785120A CN 201610299090 A CN201610299090 A CN 201610299090A CN 105785120 A CN105785120 A CN 105785120A
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- 239000000428 dust Substances 0.000 claims abstract description 59
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 9
- 230000004438 eyesight Effects 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 238000003709 image segmentation Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010606 normalization Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20024—Filtering details
- G06T2207/20032—Median filtering
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Abstract
The invention relates to an intelligent utility electric meter, and the utility electric meter comprises electric energy detection equipment, staircase dust state detection equipment, and main control equipment. The electric energy detection equipment is used for detecting and outputting electric energy outputted by a three-phase power line. The staircase dust state detection equipment is used for detecting the dust state of a staircase, and the main control equipment is connected with the electric energy detection equipment and the staircase dust state detection equipment. According to the invention, the utility electric meter can accurately recognize the dust condition of the staircase where the utility electric meter is located while improving the electric energy detection precision.
Description
The present invention is application number is 2016101847137, application number be March 28, denomination of invention in 2016 is the divisional application of the patent of " intelligent energy meter ".
Technical field
The present invention relates to energy meter field, particularly relate to a kind of intelligent energy meter.
Background technology
Energy meter, is generally arranged at staircase, occupies certain common equipment area, and its major function is to measure the various parameters of alternating electromotive force circuit, mainly electrical energy parameter.
But, staircase needs more electronic equipment to remove various monitor task, such as, need the dust situation of staircase is checked and analyzed, with at dust too much, need to clean time, the building's management center of notice staircase place residential building, facilitates building's management center arrangement cleanup crew to go to this staircase to sweep in time.
In prior art, staircase is also absent from such electronic equipment, and the cleaning of the dust of staircase remains a need for cleanup crew and regularly pinpoints process, and such processing mode expends substantial amounts of man power and material, simultaneously that the process of dust is not prompt enough, cleaning efficiency is low.
More crucially, prior art provides rational equipment accommodation space also without to similar electronic equipment, if being the device space of each electronic device arrangement independence, the public space that then staircase is limited does not hold all electronic equipments at all, accordingly, it would be desirable to the public space of staircase is reasonably designed.
Accordingly, it would be desirable to a kind of can the energy meter of integrated new electronic monitoring equipment, be positioned at staircase, while optimization itself is to alternating electromotive force parameter detecting technology, the electronic equipment of compatible staircase dust monitoring, thus reaching to reduce the purpose that electronic equipment takes up space.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of intelligent energy meter, each staircase energy meter in transformation prior art, its structure is improved, improve its precision to alternating electromotive force parameter detecting, it addition, design the dust detection equipment of a set of new integrated laser detection and image detection, and dust is detected integration of equipments on staircase energy meter, thus improve the intelligent level of energy meter.
According to an aspect of the present invention, provide a kind of intelligent energy meter, described energy meter includes electric energy detection equipment, staircase dust condition detecting device and main control device, electric energy detection equipment is for detecting and export the electric energy of three-phase power circuit output, staircase dust condition detecting device is for detecting the dust state of staircase, and main control device is connected with electric energy detection equipment and staircase dust condition detecting device respectively.
nullMore specifically，In described intelligent energy meter，Including: dust concentration detection equipment，Including generating laser、Light-sensitive element、Signal amplifier、Built-in RAM and AT89C51 single-chip microcomputer，Generating laser is used for emission detection laser in air，Light-sensitive element is for receiving exploring laser light by the scattering laser after dust particle scattering，And scattering laser is converted to the pulse signal of correspondence，Signal amplifier is connected with light-sensitive element，For pulse signal is amplified，Built-in RAM is for prestoring the relevant information of reference laser particle signal，AT89C51 single-chip microcomputer is connected with signal amplifier and built-in RAM respectively，Pulse signal after amplifying is carried out Digital Signal Processing，The relevant information of result Yu reference laser particle signal is compared，With the dust concentration judged and in delivery air；CMOS vision sensor, is arranged on the housing of energy meter, carries out shooting to obtain high definition staircase image towards escalator；Complexity detection equipment, is connected with CMOS vision sensor, is used for receiving high definition staircase image, and calculates based on high definition staircase image and export image complexity；Gray scale converting apparatus, it is connected with CMOS vision sensor, for receiving high definition staircase image, for each pixel in high definition staircase 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；Image segmentation apparatus, it is connected with image correcting device and gray scale converting apparatus respectively, for detecting the position on building ground in correction chart picture based on default building ground contour, and the position based on building ground is partitioned into corresponding gray processing ground image from gray level image；Cleannes detection equipment, it is connected with image segmentation apparatus, average gray for the gray value calculating gray processing ground image of the whole pixels based on gray processing ground image, and average gray and default gray value are compared, when average gray is less than or equal to default gray value, send and need clean signal, when average gray is less than default gray value, sends and do not need clean signal；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, adopts AT45DB081 chip, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip；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, traffic rate is 1200bps, 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；Ling Yang SPCE061A chip, it is connected with potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment respectively, 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；Ling Yang SPCE061A chip also detects equipment respectively with dust concentration and cleannes detection equipment is connected, when the dust concentration received be more than or equal to preset concentration threshold value and receive need clean signal time, send dust and cross multi signal, when the dust concentration received less than preset concentration threshold value or receive need not clean signal time, send dust normal signal；Frequency duplex communications interface, is connected with Ling Yang SPCE061A chip, is sent to the building's management center of far-end for dust is crossed multi signal, sends cleanup crew to go to the staircase of correspondence to carry out cleaning works triggering building's management center.
More specifically, in described intelligent energy meter: FLASH storage device also stored for preset concentration threshold value.
More specifically, in described intelligent energy meter: FLASH storage device also stored for default gray value.
More specifically, in described intelligent energy meter: cleannes detection equipment is also connected with FLASH storage device.
More specifically, in described intelligent energy meter: the capacity of AT45DB081 chip is 1M byte.
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 intelligent energy meter illustrated according to an embodiment of the present invention.
Fig. 2 is the block diagram of the calendar clock equipment of the intelligent energy meter illustrated according to an embodiment of the present invention.
Accompanying drawing labelling: 1 electric energy detection equipment；2 staircase dust condition detecting devices；3 main control devices；4 calendar clock chips；5 lithium batteries
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the intelligent energy meter of the present invention is described in detail.
At present, the energy meter of staircase is still simple function equipment, and it occupies certain common equipment space, alternating electromotive force circuit can only be carried out parameter detecting, and not possess other functions, and meanwhile, the mechanism of its detection is still improved space.
Simultaneously, the hygienic cleaning of staircase is generally responsible for by the building's management center of staircase place residential building, by employing the mode of cleanup crew, go to each staircase to carry out fixed point every the set time to sweep up dust, this mode does not account for the actual distribution situation of the dust of staircase, such as, autumn and winter dust accumulating rate be different, thus it is unreasonable to easily lead to dust cleaning frequency, excessively rely on artificial, expend a large amount of man power and material, improve the property cost of resident on the contrary to a certain extent.
But, if designing a set of staircase dust condition detecting device, such equipment is disposed for each staircase, to cause that originally nervous staircase public space is more crowded to capacity, therefore, need function merging to be placed in the same device space some with integrated electronic equipment, thus reducing taking staircase public space.
In order to overcome above-mentioned deficiency, the present invention has built a kind of intelligent energy meter, existing staircase energy meter is carried out structure of modification, on the one hand, optimize its accuracy of detection to alternating electromotive force circuit, on the other hand, by appropriate design internal structure, the equipment that detected by dust is received in the energy meter device space, thus decreasing taking staircase public space.
Fig. 1 is the block diagram of the intelligent energy meter illustrated according to an embodiment of the present invention, described energy meter includes electric energy detection equipment, staircase dust condition detecting device and main control device, electric energy detection equipment is for detecting and export the electric energy of three-phase power circuit output, staircase dust condition detecting device is for detecting the dust state of staircase, and main control device is connected with electric energy detection equipment and staircase dust condition detecting device respectively.
Then, continue the concrete structure of the intelligent energy meter of the present invention is further detailed.
Described energy meter includes: dust concentration detection equipment, including generating laser, light-sensitive element, signal amplifier, built-in RAM and AT89C51 single-chip microcomputer, generating laser is used for emission detection laser in air, light-sensitive element is for receiving exploring laser light by the scattering laser after dust particle scattering, and scattering laser is converted to the pulse signal of correspondence, signal amplifier is connected with light-sensitive element, for pulse signal is amplified, built-in RAM is for prestoring the relevant information of reference laser particle signal, AT89C51 single-chip microcomputer is connected with signal amplifier and built-in RAM respectively, pulse signal after amplifying is carried out Digital Signal Processing, the relevant information of result Yu reference laser particle signal is compared, with the dust concentration judged and in delivery air.
Described energy meter includes: CMOS vision sensor, is arranged on the housing of energy meter, carries out shooting to obtain high definition staircase image towards escalator；Complexity detection equipment, is connected with CMOS vision sensor, is used for receiving high definition staircase image, and calculates based on high definition staircase image and export image complexity；Gray scale converting apparatus, it is connected with CMOS vision sensor, for receiving high definition staircase image, for each pixel in high definition staircase 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 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.
nullDescribed 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；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.
Described energy meter includes: image segmentation apparatus, it is connected with image correcting device and gray scale converting apparatus respectively, for detecting the position on building ground in correction chart picture based on default building ground contour, and the position based on building ground is partitioned into corresponding gray processing ground image from gray level image；Cleannes detection equipment, it is connected with image segmentation apparatus, average gray for the gray value calculating gray processing ground image of the whole pixels based on gray processing ground image, and average gray and default gray value are compared, when average gray is less than or equal to default gray value, send and need clean signal, when average gray is less than default gray value, sends and do not need clean signal.
Described 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 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.
As shown in Figure 2, described 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.
Described energy meter includes: FLASH storage device, adopts AT45DB081 chip, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip；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, traffic rate is 1200bps, 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 energy meter includes: Ling Yang SPCE061A chip, it is connected with potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment respectively, 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；Ling Yang SPCE061A chip also detects equipment respectively with dust concentration and cleannes detection equipment is connected, when the dust concentration received be more than or equal to preset concentration threshold value and receive need clean signal time, send dust and cross multi signal, when the dust concentration received less than preset concentration threshold value or receive need not clean signal time, send dust normal signal.
Described energy meter includes: frequency duplex communications interface, is connected with Ling Yang SPCE061A chip, is sent to the building's management center of far-end for dust is crossed multi signal, sends cleanup crew to go to the staircase of correspondence to carry out cleaning works triggering building's management center.
Alternatively, in described intelligent energy meter: FLASH storage device also stored for preset concentration threshold value；FLASH storage device also stored for default gray value；Cleannes detection equipment is also connected with FLASH storage device；And the selectable capacity of AT45DB081 chip is 1M byte..
It addition, energy meter is used to measure the instrument of electric energy, also known as kilowatt-hour meter, electric energy meter, kilowatt-hour table, refer to measure the instrument of various electrical quantities.
Energy meter divides by purposes, can be divided into: meritorious energy meter, idle energy meter, maximum demand meter, standard energy meter, multi tariff timesharing energy meter, pre-payment energy meter (point coin-feed, magnetic card type, electric card type), loss energy meter, multi-functional energy meter and intelligence energy meter.
Energy meter divides by operation principle, can be divided into: vicarious (mechanical type), state type (electronic type), electromechanical (hybrid).
Energy meter divides by accessing phase line, can be divided into single-phase, phase three-wire three, three-phase and four-line energy meter.
Adopt the intelligent energy meter of the present invention, dust detection equipment accommodation space and energy meter detection efficiency technical problem on the lower side cannot be solved for prior art simultaneously, by appropriate design energy meter internal structure, optimize the energy meter testing mechanism to alternating electromotive force circuit, more crucially, by in the staircase gray scale detection integration of equipments of integrated laser detection and image detection to energy meter, thus avoiding excessively taking staircase public space.
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 (2)
1. an intelligent energy meter, described energy meter includes electric energy detection equipment, staircase dust condition detecting device and main control device, electric energy detection equipment is for detecting and export the electric energy of three-phase power circuit output, staircase dust condition detecting device is for detecting the dust state of staircase, and main control device is connected with electric energy detection equipment and staircase dust condition detecting device respectively.
2. intelligent energy meter as claimed in claim 1, it is characterised in that described energy meter includes:
Dust concentration detection equipment, including generating laser, light-sensitive element, signal amplifier, built-in RAM and AT89C51 single-chip microcomputer, generating laser is used for emission detection laser in air, light-sensitive element is for receiving exploring laser light by the scattering laser after dust particle scattering, and scattering laser is converted to the pulse signal of correspondence, signal amplifier is connected with light-sensitive element, for pulse signal is amplified, built-in RAM is for prestoring the relevant information of reference laser particle signal, AT89C51 single-chip microcomputer is connected with signal amplifier and built-in RAM respectively, pulse signal after amplifying is carried out Digital Signal Processing, the relevant information of result Yu reference laser particle signal is compared, with the dust concentration judged and in delivery air；
CMOS vision sensor, is arranged on the housing of energy meter, carries out shooting to obtain high definition staircase image towards escalator；
Complexity detection equipment, is connected with CMOS vision sensor, is used for receiving high definition staircase image, and calculates based on high definition staircase image and export image complexity；
Gray scale converting apparatus, it is connected with CMOS vision sensor, for receiving high definition staircase image, for each pixel in high definition staircase 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；
Image segmentation apparatus, it is connected with image correcting device and gray scale converting apparatus respectively, for detecting the position on building ground in correction chart picture based on default building ground contour, and the position based on building ground is partitioned into corresponding gray processing ground image from gray level image；
Cleannes detection equipment, it is connected with image segmentation apparatus, average gray for the gray value calculating gray processing ground image of the whole pixels based on gray processing ground image, and average gray and default gray value are compared, when average gray is less than or equal to default gray value, send and need clean signal, when average gray is less than default gray value, sends and do not need clean signal；
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, adopts AT45DB081 chip, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip；
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, traffic rate is 1200bps, 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；
Ling Yang SPCE061A chip, it is connected with potential device, calendar clock equipment, liquid crystal display, FLASH storage device, Integrated Communication Devices and three-phase electric energy metering equipment respectively, 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；Ling Yang SPCE061A chip also detects equipment respectively with dust concentration and cleannes detection equipment is connected, when the dust concentration received be more than or equal to preset concentration threshold value and receive need clean signal time, send dust and cross multi signal, when the dust concentration received less than preset concentration threshold value or receive need not clean signal time, send dust normal signal；
Frequency duplex communications interface, is connected with Ling Yang SPCE061A chip, is sent to the building's management center of far-end for dust is crossed multi signal, sends cleanup crew to go to the staircase of correspondence to carry out cleaning works triggering building's management center；
FLASH storage device also stored for default gray value；
Cleannes detection equipment is also connected with FLASH storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299090.8A CN105785120A (en) | 2016-03-28 | 2016-03-28 | Intelligent utility electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299090.8A CN105785120A (en) | 2016-03-28 | 2016-03-28 | Intelligent utility electric meter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610184713.7A Division CN105629053A (en) | 2016-03-28 | 2016-03-28 | Intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105785120A true CN105785120A (en) | 2016-07-20 |
Family
ID=56401897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610299090.8A Withdrawn CN105785120A (en) | 2016-03-28 | 2016-03-28 | Intelligent utility electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105785120A (en) |
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2016
- 2016-03-28 CN CN201610299090.8A patent/CN105785120A/en not_active Withdrawn
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Application publication date: 20160720 |
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