CN105675935A - Intelligent electric energy meter - Google Patents
Intelligent electric energy meter Download PDFInfo
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- CN105675935A CN105675935A CN201610180044.6A CN201610180044A CN105675935A CN 105675935 A CN105675935 A CN 105675935A CN 201610180044 A CN201610180044 A CN 201610180044A CN 105675935 A CN105675935 A CN 105675935A
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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
- 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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- 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
- G01R22/061—Details of electronic electricity meters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/103—Static body considered as a whole, e.g. static pedestrian or occupant recognition
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Abstract
The invention relates to an intelligent electric energy meter, comprising a FLASH storage device, a three-phase electric energy metering device, a figure appearance frequency detection device and a Sunplus SPCE061A chip. The three-phase electric energy metering device is used for detecting and outputting the active power of a three-phase electric power circuit; the figure appearance frequency detection device is used for detecting the appearance frequency of each figure in a staircase; the Sunplus SPCE061A chip is in connection with the FLASH storage device, the three-phase electric energy metering device, and the figure appearance frequency detection device, controls the operation of the three-phase electric energy metering device, and meanwhile determines the identity of a figured based on the output of the figure appearance frequency detection device. According to the invention, the intelligent electric energy meter can realizes the prepared authentication on the figure identity in a staircase by means of present device resources, thereby guaranteeing building resident living safety.
Description
Technical field
The present invention relates to electric energy table field, particularly relate to a kind of the intelligent electric energy meter.
Background technology
Electric energy table is used to measure the instrument of electric energy, and also known as watt-hour meter, fire table, kilowatt-hour table, refers to measure the instrument of various electrical quantities.
Electric energy table divides by purposes, can be divided into: active electric energy meter, reactive energy-meter, maximum requirement table, standard electric energy meter, multi tariff time-sharing electric energy meter, pre-payment electric energy table (point coin formula, magnetic card type, electric card type), loss electric energy table, multifunctional electric energy meter and intelligent electric energy meter.
Electric energy table divides by principle of work, can be divided into: induction type (mechanical type), state type (polarity formula), electromechanical (hybrid).
Electric energy table divides by access phase line, can be divided into single-phase, phase three-wire three, three-phase and four-line electric energy table.
Electric energy table is used to should be noted that following item: when low voltage (being no more than 500 volts) and small area analysis (tens peaces), electric energy table can directly be measured by put in circuit. When high-voltage or big current, electric energy table can not directly access circuit, and voltage transformer or current transformer need to be coordinated to use. For the electric energy table directly accessing circuit, appropriate size to be selected according to load voltage and electric current, make voltage rating and the rated current of electric energy table, be equal to or slightly greater than voltage or the electric current of load. In addition, the power consumption of load at more than the 10% of electric energy table rated value, otherwise to be measured inaccurate. Even sometimes the not dynamic aluminium dish of basic band rotates. So electric energy table can not select too big. If selecting too little also easily to burn out electric energy table.
Electric energy table of the prior art develops to intelligent direction, such as, provide remote meter reading interface etc., but generally, electric energy table of the prior art exists following defect: the measuring accuracy of (1) electric energy table still has much room for improvement; (2) function singleness of electric energy table, is still confined to the detection to electric power circuit and operates, it does not have make full use of the public space shared by electric energy table, the public space of such as staircase.
Therefore, the present invention proposes a kind of new electric energy table, special in staircase, on the one hand, improve self detection efficiency and accuracy of detection, on the other hand, it is possible to the occurrence number of each human target of staircase judged, online runaway convict's detection operation is triggered to determine whether, thus the inhabitation offer safety control for building resident.
Summary of the invention
In order to solve the problem, the present invention provides a kind of the intelligent electric energy meter, transform the internal structure of electric energy table of the prior art, optimize it to the testing mechanism of electric power circuit, more crucially, the human target that staircase is come in and gone out by introducing wireless communication technology and image detecting technique carries out runaway convict's judgement, sends corresponding guard signal when determining to there is runaway convict, avoids resident to be subject to the injury of runaway convict.
According to an aspect of the present invention, provide a kind of the intelligent electric energy meter, described electric energy table comprises FLASH storing device, three-phase electric energy metering equipment, personage's occurrence number test set and Ling Yang SPCE061A chip, three-phase electric energy metering equipment is for detecting and exports the wattful power on three-phase power line road, personage's occurrence number test set is for detecting the occurrence number of each personage of staircase, Ling Yang SPCE061A chip respectively with FLASH storing device, three-phase electric energy metering equipment and personage's occurrence number test set connect, determine the identity of personage based on the output of personage's occurrence number test set while control three-phase electric energy metering operation of equipment.
More specifically, in described the intelligent electric energy meter, comprising: current sense device, it is connected with three-phase power line road, for the electric current signal in three-phase power line road is carried out size conversion, export the micro-electric current signal less relative to the electric current signal in three-phase power line road; Voltage sensor, is connected with three-phase power line road, for the voltage signal in three-phase power line road is carried out size conversion, exports the micro voltage signal less relative to the voltage signal in three-phase power line road; Anti-mixed folded filtering circuit, is connected with current sense device and voltage sensor respectively, for the micro-electric current signal received and micro voltage signal carry out anti-mixed folded filtering process, with the micro-electric current signal after output processing and micro voltage signal; Three-phase electric energy metering equipment, is connected with anti-mixed folded filtering circuit, determines the wattful power of mutually each in three-phase power line road and conjunction phase, wattless power and applied power based on the micro-electric current signal after process and micro voltage signal; Rectifying installation, is connected with three-phase power line road, for being direct current by the AC rectification on three-phase power line road; Pressure stabilizing device, is connected with rectifying installation, for direct current is carried out voltage stabilizing process; Potential device, is connected with pressure stabilizing device, and for the direct current after voltage stabilizing carries out the operating voltage of transformation process to obtain each electronics, the operating voltage required for each electronics comprises 36V, 12V, 5V and 3.3V; Calendar clockwork, comprise calendar clock chip and lithium cell, calendar clock chip is for providing real time clock data, also it is connected with Ling Yang SPCE061A chip by synchronous serial line interface I2C, lithium cell is connected with calendar clock chip, under powering-off state be calendar clock chip provide standby power support; Liquid crystal display, comprises segment liquid crystal display driver and a liquid crystal display, and a segment liquid crystal display driver is connected with Ling Yang SPCE061A chip by synchronous serial line interface I2C, for the displaying contents controlled on liquid crystal display; FLASH storing device, employing capacity is the AT45DB081 chip of 1M byte, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip; Integrated communicaton equipment, it is connected with Ling Yang SPCE061A chip, comprise infrared emission device, infrared receptor, optocoupler device, RS485 driving mechanism and RS485 communication interface, infrared emission device adopts the light modulated of 38kHz, infrared receptor adopts open collector mode to export from the infrared light received demodulation numerary signal out, RS485 driving mechanism is connected with RS485 communication interface, and optocoupler device for being isolated from RS485 driving mechanism and RS485 communication interface by infrared emission device and infrared receptor;High-definition camera, is arranged on electric energy off-balancesheet frame, shooting direction towards staircase, for taking high definition staircase image, complexity test set, is connected with high-definition camera, for receiving high definition staircase image, and calculates and output image complexity based on high definition staircase image, gray scale converting apparatus, it is connected with high-definition camera, 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 give different weighted values to carry out weighted mean, to obtain corresponding gray-scale value, the gray-scale value composition gray level image of all pixels, wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59 and 0.11, image filter apparatus, it is connected with complexity test set and gray scale converting apparatus respectively, for the filtering strategy determining to select based on image complexity, when image complexity is below default complexity scope lower limit, select gaussian filtering strategy that gray level image is carried out filtering, when image complexity is more than the default complexity scope upper limit, select mean filter strategy that gray level image is carried out filtering, when image complexity is within default complexity scope, in selection, gray level image is carried out filtering by value filtering strategy, the overall situation two value equipment, it is connected with complexity test set and image filter apparatus respectively, 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, make pixel value only 0 or 255 these the two kinds selections of the binary image after processing, wherein determine that the determination strategy of overall situation binary-state threshold specifically comprises based on image complexity: when image complexity is below default complexity scope lower limit, Two-peak method is adopted to determine overall situation binary-state threshold, when image complexity is more than the default complexity scope upper 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, with overall two value equipment connections to receive binary image, for binary image carries out rotation correction process, redundancy cutting process and image normalization process successively, to obtain correcting image, person recognition equipment, it is connected with high-definition camera and image correcting device respectively to receive high definition staircase image and binary image, for identifying the human target of binary image based on default benchmark character contour, and it is partitioned into corresponding human target image in the position at binary image place from high definition staircase image based on human target, personage's occurrence number test set, it is connected with person recognition equipment and FLASH storing device, receive personage's target image, undertaken the human target in the human target image received and each existing human target image in FLASH storing device mating to determine whether first time occurs human target, it fails to match is then defined as first time appearance, then being stored in FLASH storing device using human target image corresponding for human target as new existing human target image and marking corresponding occurrence number is 1, the match is successful is then defined as not being occur first time, then occurrence number corresponding for the existing human target image matched in FLASH storing device is increased by 1,The occurrence number of existing human target image corresponding for human target is also exported by personage's occurrence number test set as personage's occurrence number, ONLINE RECOGNITION starting outfit, respectively with person recognition equipment, personage's occurrence number test set and radio communication equipment connection, when receiving personage's occurrence number and be less than or equal to preset times threshold value, personage's target image is received from person recognition equipment, and control radio communication equipment and be connected to start the radio communication at the management of public safety center of radio communication equipment with far-end, runaway convict's database place of management of public safety central store distally obtains each online runaway convict's image of near zone, Ling Yang SPCE061A chip, respectively with potential device, calendar clockwork, liquid crystal display, FLASH storing device, integrated communicaton equipment and three-phase electric energy metering equipment connection, realize potential device, calendar clockwork, liquid crystal display, FLASH storing device, the control of integrated communicaton equipment and three-phase electric energy metering equipment, Ling Yang SPCE061A chip is also connected with ONLINE RECOGNITION starting outfit, online to human target image and each runaway convict's image is mated one by one, runaway convict's title that online runaway convict's image of the match is successful then output matching is corresponding also sends and there is runaway convict's signal, it fails to match then sends and there is not runaway convict's signal.
More specifically, in described the intelligent electric energy meter: the communication speed of infrared emission device is 1200bps.
More specifically, in described the intelligent electric energy meter: radio communication equipment is also connected with Ling Yang SPCE061A chip, for by runaway convict's title with there is the management of public safety center that runaway convict's signal is sent to far-end by two-way wireless communication link.
More specifically, in described the intelligent electric energy meter: radio communication equipment is frequency duplex communications interface.
More specifically, in described the intelligent electric energy meter: preset times threshold value is stored in FLASH storing device.
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 electric energy meter illustrated according to an embodiment of the present invention.
Fig. 2 is the block diagram of the liquid crystal display of the intelligent electric energy meter illustrated according to an embodiment of the present invention.
Reference numeral: 1FLASH storing device; 2 three-phase electric energy metering equipment; 3 personage's occurrence number test sets; 4 Ling Yang SPCE061A chips; 5 segment liquid crystal display drivers; 6 liquid crystal display
Embodiment
Below with reference to accompanying drawings the embodiment of the intelligent electric energy meter of the present invention is described in detail.
The principle of work of electric energy table is as follows: when electric energy table is accessed circuit-under-test, just having exchange current to flow through in current coil and potential winding, these two exchange current produce the magnetic flux of alternation respectively in their iron core; Alternating flux, through aluminium dish, induces eddy current in aluminium dish; Eddy current is subject to again the effect of power in magnetic field, thus makes aluminium dish obtain torque (initiatively moment) and rotate. The power that load consumes is more big, and more big by the electric current of current coil, the eddy current induced in aluminium dish is also more big, and the moment that aluminium dish is rotated is more big. Namely the power that the size of torque consumes with load is directly proportional. Power is more big, and torque is also more big, and aluminium dish rotates also more fast. When aluminium dish rotates, being subject to again the effect of the braking moment that permanent magnet produces, braking moment is with initiatively moment direction is contrary; The size of braking moment is directly proportional to the rotating speed of aluminium dish, and aluminium dish rotates more fast, and braking moment is also more big. When active moment and braking moment reach transient equilibrium, aluminium dish is by uniform rotation. The electric energy that load consumes is directly proportional to the revolution of aluminium dish. When aluminium dish rotates, drive counter, the electric energy consumed is indicated. This is exactly the simple process of electric energy table work.
From the technical Analysis of electric energy table, the major programme of current power industry electric energy measurement instrument is generally all based semiconductor technology and realizes accurate measurement object.Electric energy table generally all have employed the A/D converter of high precision, undertaken sampling and analog to digital conversion by the voltage of electrical network, electric current signal, then utilize high speed microprocessor numerary signal to be analyzed, process and data reprocessing, sorting, thus produce various continuous data; Various communication interface, man-machine interface is finally utilized to realize docking with various equipment.
But, the design of electric energy table of the prior art has certain limitation, owing to electric energy table is placed on public space usually, but do not carry subsidiary function equipment the situation of public space monitored or realize other functions, electric energy table is confined to the parameter measurement of electric power circuit, and even so, the structure of electric energy table of the prior art still has the space optimized and transform, the detection efficiency of electric energy table of the prior art is not high, and accuracy of detection still has much room for improvement.
In order to overcome above-mentioned deficiency; the present invention has built a kind of the intelligent electric energy meter; the staircase public space occupied by existing electric energy table is utilized to be detected in real time by the human target of staircase; to determine whether there is runaway convict and to determine whether trigger runaway convict's warning; contact the police responding with the very first time; the personnel safety of available protecting building resident and property safety, meanwhile, optimize the internal structure of existing electric energy table.
Fig. 1 is the block diagram of the intelligent electric energy meter illustrated according to an embodiment of the present invention, described electric energy table comprises FLASH storing device, three-phase electric energy metering equipment, personage's occurrence number test set and Ling Yang SPCE061A chip, three-phase electric energy metering equipment is for detecting and exports the wattful power on three-phase power line road, personage's occurrence number test set is for detecting the occurrence number of each personage of staircase, Ling Yang SPCE061A chip respectively with FLASH storing device, three-phase electric energy metering equipment and personage's occurrence number test set connect, determine the identity of personage based on the output of personage's occurrence number test set while control three-phase electric energy metering operation of equipment.
Then, continue the concrete structure to the intelligent electric energy meter of the present invention to be further detailed.
Described electric energy table comprises: current sense device, is connected with three-phase power line road, for the electric current signal in three-phase power line road is carried out size conversion, exports the micro-electric current signal less relative to the electric current signal in three-phase power line road; Voltage sensor, is connected with three-phase power line road, for the voltage signal in three-phase power line road is carried out size conversion, exports the micro voltage signal less relative to the voltage signal in three-phase power line road; Anti-mixed folded filtering circuit, is connected with current sense device and voltage sensor respectively, for the micro-electric current signal received and micro voltage signal carry out anti-mixed folded filtering process, with the micro-electric current signal after output processing and micro voltage signal.
Described electric energy table comprises: three-phase electric energy metering equipment, is connected with anti-mixed folded filtering circuit, determines the wattful power of mutually each in three-phase power line road and conjunction phase, wattless power and applied power based on the micro-electric current signal after process and micro voltage signal; Rectifying installation, is connected with three-phase power line road, for being direct current by the AC rectification on three-phase power line road; Pressure stabilizing device, is connected with rectifying installation, for direct current is carried out voltage stabilizing process; Potential device, is connected with pressure stabilizing device, and for the direct current after voltage stabilizing carries out the operating voltage of transformation process to obtain each electronics, the operating voltage required for each electronics comprises 36V, 12V, 5V and 3.3V.
Described electric energy table comprises: calendar clockwork, comprise calendar clock chip and lithium cell, calendar clock chip is for providing real time clock data, also it is connected with Ling Yang SPCE061A chip by synchronous serial line interface I2C, lithium cell is connected with calendar clock chip, under powering-off state be calendar clock chip provide standby power support.
As shown in Figure 2, shown electric energy table comprises: liquid crystal display, being made up of a segment liquid crystal display driver and liquid crystal display, a segment liquid crystal display driver is connected with Ling Yang SPCE061A chip by synchronous serial line interface I2C, for the displaying contents controlled on liquid crystal display; FLASH storing device, employing capacity is the AT45DB081 chip of 1M byte, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip.
Described electric energy table comprises: integrated communicaton equipment, it is connected with Ling Yang SPCE061A chip, comprise infrared emission device, infrared receptor, optocoupler device, RS485 driving mechanism and RS485 communication interface, infrared emission device adopts the light modulated of 38kHz, infrared receptor adopts open collector mode to export from the infrared light received demodulation numerary signal out, RS485 driving mechanism is connected with RS485 communication interface, and optocoupler device for being isolated from RS485 driving mechanism and RS485 communication interface by infrared emission device and infrared receptor; High-definition camera, is arranged on electric energy off-balancesheet frame, shooting direction towards staircase, for taking high definition staircase image; Complexity test set, is connected with high-definition camera, for receiving high definition staircase image, and calculates and output image complexity based on high definition staircase image.
Described electric energy table comprises: gray scale converting apparatus, it is connected with high-definition camera, 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 give different weighted values to carry out weighted mean, to obtain corresponding gray-scale value, the gray-scale value composition gray level image of all pixels, wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59 and 0.11; Image filter apparatus, it is connected with complexity test set and gray scale converting apparatus respectively, for the filtering strategy determining to select based on image complexity, when image complexity is below default complexity scope lower limit, select gaussian filtering strategy that gray level image is carried out filtering, when image complexity is more than the default complexity scope upper limit, select mean filter strategy that gray level image is carried out filtering, when image complexity is within default complexity scope, in selection, gray level image is carried out filtering by value filtering strategy.
Described electric energy table comprises: overall two value equipment, it is connected with complexity test set and image filter apparatus respectively, 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, make pixel value only 0 or 255 these the two kinds selections of the binary image after processing, wherein determine that the determination strategy of overall situation binary-state threshold specifically comprises based on image complexity: when image complexity is below default complexity scope lower limit, Two-peak method is adopted to determine overall situation binary-state threshold, when image complexity is more than the default complexity scope upper 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, with overall two value equipment connections to receive binary image, for binary image carries out rotation correction process, redundancy cutting process and image normalization process successively, to obtain correcting image, person recognition equipment, it is connected with high-definition camera and image correcting device respectively to receive high definition staircase image and binary image, for identifying the human target of binary image based on default benchmark character contour, and it is partitioned into corresponding human target image in the position at binary image place from high definition staircase image based on human target.
Described electric energy table comprises: personage's occurrence number test set, it is connected with person recognition equipment and FLASH storing device, receive personage's target image, undertaken the human target in the human target image received and each existing human target image in FLASH storing device mating to determine whether first time occurs human target, it fails to match is then defined as first time appearance, then being stored in FLASH storing device using human target image corresponding for human target as new existing human target image and marking corresponding occurrence number is 1, the match is successful is then defined as not being occur first time, then occurrence number corresponding for the existing human target image matched in FLASH storing device is increased by 1,The occurrence number of existing human target image corresponding for human target is also exported by personage's occurrence number test set as personage's occurrence number; ONLINE RECOGNITION starting outfit, respectively with person recognition equipment, personage's occurrence number test set and radio communication equipment connection, when receiving personage's occurrence number and be less than or equal to preset times threshold value, personage's target image is received from person recognition equipment, and control radio communication equipment and be connected to start the radio communication at the management of public safety center of radio communication equipment with far-end, runaway convict's database place of management of public safety central store distally obtains each online runaway convict's image of near zone.
Described electric energy table comprises: Ling Yang SPCE061A chip, respectively with potential device, calendar clockwork, liquid crystal display, FLASH storing device, integrated communicaton equipment and three-phase electric energy metering equipment connection, realize potential device, calendar clockwork, liquid crystal display, FLASH storing device, the control of integrated communicaton equipment and three-phase electric energy metering equipment, Ling Yang SPCE061A chip is also connected with ONLINE RECOGNITION starting outfit, online to human target image and each runaway convict's image is mated one by one, runaway convict's title that online runaway convict's image of the match is successful then output matching is corresponding also sends and there is runaway convict's signal, it fails to match then sends and there is not runaway convict's signal.
Can selection of land, in described the intelligent electric energy meter: the communication speed of infrared emission device is 1200bps; Radio communication equipment is also connected with Ling Yang SPCE061A chip, for by runaway convict's title with there is the management of public safety center that runaway convict's signal is sent to far-end by two-way wireless communication link; Radio communication equipment is frequency duplex communications interface; And preset times threshold value can be stored in FLASH storing device.
In addition, 4GLTE is the standard of a global general-use, comprises two kinds of network schemer FDD and TDD, is respectively used to paired frequency spectrum and non-paired frequency spectrum. Operator is accepting or rejecting purely for the consideration to spectrum availability between two patterns at first. Big multi-operator will dispose two kinds of networks simultaneously, to make full use of all frequency spectrum resources that it has. FDD and TDD distinguishes in fact very little technically, and the key distinction is just to adopt different duplexing modes, and FDD (FDD) and time-division duplex (TDD) are two kinds of different duplexing modes.
FDD carries out receiving and sending on two symmetrical frequency channels of separation, is separated reception and sending channel by protection frequency range. FDD must adopt paired frequency, relies on frequency to carry out differentiating uplink and downlink link, and its unidirectional resource is continuous print in time. FDD, when supporting symmetrical service, can make full use of the frequency spectrum of up-downgoing, but when supporting non-symmetrical service, the availability of frequency spectrum will reduce greatly.
TDD is separated reception and sending channel with the time. In the mobile communication system of TDD mode, receiving and send the different time-gap using same frequency carrier as the carrying of channel, its unidirectional resource is discontinuous in time, and time resource has distributed in the two directions. Certain time period sends a signal to transfer table by base station, and the other time sends a signal to base station by transfer table, must harmonious ability work well between base station and transfer table.
Adopt the intelligent electric energy meter of the present invention, for electric energy table function singleness in prior art, technical problem that accuracy of detection is not high, by transforming the self structure of electric energy table, eliminating equipment redundancy, improve detection efficiency and precision, meanwhile, neighbouring human target is carried out monitor in real time by the public space of the staircase making full use of electric energy table place, effectively ensures the person and the property safety of resident.
Although it should be appreciated that the present invention with better embodiment disclose as above, but above-described embodiment and be not used to limit the present invention. For any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible variations and modification, or be revised as the equivalent embodiment of equivalent variations. Therefore, every content not departing from technical solution of the present invention, the technical spirit of foundation the present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (6)
1. a intelligent electric energy meter, described electric energy table comprises FLASH storing device, three-phase electric energy metering equipment, personage's occurrence number test set and Ling Yang SPCE061A chip, three-phase electric energy metering equipment is for detecting and exports the wattful power on three-phase power line road, personage's occurrence number test set is for detecting the occurrence number of each personage of staircase, Ling Yang SPCE061A chip respectively with FLASH storing device, three-phase electric energy metering equipment and personage's occurrence number test set connect, determine the identity of personage based on the output of personage's occurrence number test set while control three-phase electric energy metering operation of equipment.
2. the intelligent electric energy meter as claimed in claim 1, it is characterised in that, described electric energy table comprises:
Current sense device, is connected with three-phase power line road, for the electric current signal in three-phase power line road is carried out size conversion, exports the micro-electric current signal less relative to the electric current signal in three-phase power line road;
Voltage sensor, is connected with three-phase power line road, for the voltage signal in three-phase power line road is carried out size conversion, exports the micro voltage signal less relative to the voltage signal in three-phase power line road;
Anti-mixed folded filtering circuit, is connected with current sense device and voltage sensor respectively, for the micro-electric current signal received and micro voltage signal carry out anti-mixed folded filtering process, with the micro-electric current signal after output processing and micro voltage signal;
Three-phase electric energy metering equipment, is connected with anti-mixed folded filtering circuit, determines the wattful power of mutually each in three-phase power line road and conjunction phase, wattless power and applied power based on the micro-electric current signal after process and micro voltage signal;
Rectifying installation, is connected with three-phase power line road, for being direct current by the AC rectification on three-phase power line road;
Pressure stabilizing device, is connected with rectifying installation, for direct current is carried out voltage stabilizing process;
Potential device, is connected with pressure stabilizing device, and for the direct current after voltage stabilizing carries out the operating voltage of transformation process to obtain each electronics, the operating voltage required for each electronics comprises 36V, 12V, 5V and 3.3V;
Calendar clockwork, comprise calendar clock chip and lithium cell, calendar clock chip is for providing real time clock data, also it is connected with Ling Yang SPCE061A chip by synchronous serial line interface I2C, lithium cell is connected with calendar clock chip, under powering-off state be calendar clock chip provide standby power support;
Liquid crystal display, comprises segment liquid crystal display driver and a liquid crystal display, and a segment liquid crystal display driver is connected with Ling Yang SPCE061A chip by synchronous serial line interface I2C, for the displaying contents controlled on liquid crystal display;
FLASH storing device, employing capacity is the AT45DB081 chip of 1M byte, carries out bidirectional data exchange by serial peripheral equipment interface SPI and Ling Yang SPCE061A chip;
Integrated communicaton equipment, it is connected with Ling Yang SPCE061A chip, comprise infrared emission device, infrared receptor, optocoupler device, RS485 driving mechanism and RS485 communication interface, infrared emission device adopts the light modulated of 38kHz, infrared receptor adopts open collector mode to export from the infrared light received demodulation numerary signal out, RS485 driving mechanism is connected with RS485 communication interface, and optocoupler device for being isolated from RS485 driving mechanism and RS485 communication interface by infrared emission device and infrared receptor;
High-definition camera, is arranged on electric energy off-balancesheet frame, shooting direction towards staircase, for taking high definition staircase image;
Complexity test set, is connected with high-definition camera, for receiving high definition staircase image, and calculates and output image complexity based on high definition staircase image;
Gray scale converting apparatus, it is connected with high-definition camera, 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 give different weighted values to carry out weighted mean, to obtain corresponding gray-scale value, the gray-scale value composition gray level image of all pixels, wherein R, G, B tri-the weighted value of Color Channel component be respectively 0.3,0.59 and 0.11;
Image filter apparatus, it is connected with complexity test set and gray scale converting apparatus respectively, for the filtering strategy determining to select based on image complexity, when image complexity is below default complexity scope lower limit, select gaussian filtering strategy that gray level image is carried out filtering, when image complexity is more than the default complexity scope upper limit, select mean filter strategy that gray level image is carried out filtering, when image complexity is within default complexity scope, in selection, gray level image is carried out filtering by value filtering strategy;
The overall situation two value equipment, it is connected with complexity test set and image filter apparatus respectively, 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, make pixel value only 0 or 255 these the two kinds selections of the binary image after processing, wherein determine that the determination strategy of overall situation binary-state threshold specifically comprises based on image complexity: when image complexity is below default complexity scope lower limit, Two-peak method is adopted to determine overall situation binary-state threshold, when image complexity is more than the default complexity scope upper 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, with overall two value equipment connections to receive binary image, for binary image carries out rotation correction process, redundancy cutting process and image normalization process successively, to obtain correcting image;
Person recognition equipment, it is connected with high-definition camera and image correcting device respectively to receive high definition staircase image and binary image, for identifying the human target of binary image based on default benchmark character contour, and it is partitioned into corresponding human target image in the position at binary image place from high definition staircase image based on human target;
Personage's occurrence number test set, it is connected with person recognition equipment and FLASH storing device, receive personage's target image, undertaken the human target in the human target image received and each existing human target image in FLASH storing device mating to determine whether first time occurs human target, it fails to match is then defined as first time appearance, then being stored in FLASH storing device using human target image corresponding for human target as new existing human target image and marking corresponding occurrence number is 1, the match is successful is then defined as not being occur first time, then occurrence number corresponding for the existing human target image matched in FLASH storing device is increased by 1,The occurrence number of existing human target image corresponding for human target is also exported by personage's occurrence number test set as personage's occurrence number;
ONLINE RECOGNITION starting outfit, respectively with person recognition equipment, personage's occurrence number test set and radio communication equipment connection, when receiving personage's occurrence number and be less than or equal to preset times threshold value, personage's target image is received from person recognition equipment, and control radio communication equipment and be connected to start the radio communication at the management of public safety center of radio communication equipment with far-end, runaway convict's database place of management of public safety central store distally obtains each online runaway convict's image of near zone;
Ling Yang SPCE061A chip, respectively with potential device, calendar clockwork, liquid crystal display, FLASH storing device, integrated communicaton equipment and three-phase electric energy metering equipment connection, realize potential device, calendar clockwork, liquid crystal display, FLASH storing device, the control of integrated communicaton equipment and three-phase electric energy metering equipment, Ling Yang SPCE061A chip is also connected with ONLINE RECOGNITION starting outfit, online to human target image and each runaway convict's image is mated one by one, runaway convict's title that online runaway convict's image of the match is successful then output matching is corresponding also sends and there is runaway convict's signal, it fails to match then sends and there is not runaway convict's signal.
3. the intelligent electric energy meter as claimed in claim 2, it is characterised in that:
The communication speed of infrared emission device is 1200bps.
4. the intelligent electric energy meter as claimed in claim 2, it is characterised in that:
Radio communication equipment is also connected with Ling Yang SPCE061A chip, for by runaway convict's title with there is the management of public safety center that runaway convict's signal is sent to far-end by two-way wireless communication link.
5. the intelligent electric energy meter as claimed in claim 4, it is characterised in that:
Radio communication equipment is frequency duplex communications interface.
6. the intelligent electric energy meter as claimed in claim 2, it is characterised in that:
Preset times threshold value is stored in FLASH storing device.
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| CN201610416953.5A CN107228971A (en) | 2016-03-25 | 2016-03-25 | The intelligent electric energy meter |
| CN201610180044.6A CN105675935A (en) | 2016-03-25 | 2016-03-25 | Intelligent electric energy meter |
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Application publication date: 20160615 |