CN104614701A - Intelligent electric meter defect detection equipment - Google Patents
Intelligent electric meter defect detection equipment Download PDFInfo
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- CN104614701A CN104614701A CN201510100771.2A CN201510100771A CN104614701A CN 104614701 A CN104614701 A CN 104614701A CN 201510100771 A CN201510100771 A CN 201510100771A CN 104614701 A CN104614701 A CN 104614701A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- G06V30/153—Segmentation of character regions using recognition of characters or words
Abstract
The invention relates to intelligent electric meter defect detection equipment which comprises an infrared communication interface, a high-definition camera, an image detector and an embedded type processor, wherein the infrared communication interface is used for sending a test signal to a detected electric meter so as to enable the detected electric meter to control a display screen of the detected electric meter to display a test character string included in the test signal; the high-definition camera is used for shooting the display screen of the detected electric meter to output a test image; the image detector is connected with the high-definition camera and is used for carrying out image processing on the test image to identify the character string in the test image and output the character string serving as an identification character string; the embedded type processor is connected with the image detector and is used for comparing the identification character string with the test character string so as to determine whether to send a defect alarming signal. The intelligent electric meter defect detection equipment can completely and automatically detect the displaying defect of the display screen of each electric meter, and the labor cost and the time cost are reduced.
Description
Technical field
The present invention relates to power-supply unit management domain, particularly relate to a kind of ammeter defect Intelligent testing equipment.
Background technology
Ammeter is the abbreviation of electric energy meter, is used to the instrument measuring electric energy, also known as watt-hour meter, and energy meter, electric energy meter, kilowatt-hour table.Ammeter be power supply management department be used for detecting each with electric unit or individual use the metering outfit of electric energy, be carry out the foundation of charging with electric unit or individual to each.
The information of ammeter is passed on mainly through its display screen.In the production run of ammeter, its display screen or treatment facility or transmission equipment there will be defect unavoidably, cause the display of display screen not meet expection, existing defects, have a strong impact on the reception and registration of metrical information.Therefore, carrying out display defect detection to the ammeter reported for repairment, to determine ammeter, whether existing defects is extremely important.
In prior art, display defect is carried out to the ammeter reported for repairment and detect main employing manual detection mode, detection operation is many, testing staff needs the step complexity inputted, accuracy and the efficiency of detection are not high, even if there is the checkout equipment of some electronics, also lock into that ammeter type is complicated, display defect detects the awkward situation being difficult to carry out, like this, these existing electron detection device poor universality, detect operation and are difficult to rational.
Therefore, need a kind of ammeter defect detection equipment based on detection of electrons newly, substitute the manual detection mode of complicated poor efficiency, transform the electron detection device of existing poor compatibility, complete the detection of the display defect to all kinds ammeter quickly and efficiently.
Summary of the invention
In order to solve the problem, the invention provides a kind of ammeter defect Intelligent testing equipment, image processing techniques is adopted first to detect the profile of ammeter, to determine the type of ammeter, according to the parameters that the type determination ammeter display defect of ammeter detects, and the information interaction adopting Infrared Transmission mode to realize between ammeter and checkout equipment, improve versatility and the intelligence degree of ammeter defects detection.
According to an aspect of the present invention, provide a kind of ammeter defect Intelligent testing equipment, described checkout equipment comprises infrared communication interface, high-definition camera, visual detector and flush bonding processor, described infrared communication interface is used for sending test massage to detected ammeter, so that described detected ammeter controls its display screen show the test character string that described test signal comprises, described high-definition camera is used for taking to export test pattern to the display screen of described detected ammeter, described visual detector is connected with described high-definition camera, for carrying out image procossing to described test pattern, to identify character string in described test pattern and to export as identification string, described flush bonding processor is connected with described visual detector, for described identification string and described test character string are compared, to determine whether to send defect alerting signal.
More specifically, in described ammeter defect Intelligent testing equipment, also comprise: reset unit, for each electronic unit in described checkout equipment is returned to default conditions, the default conditions of each electronic unit described are the state that described checkout equipment manufacturer sets when described checkout equipment dispatches from the factory, static memory, for prestoring the benchmark image template of the ammeter of various species, the benchmark image template of the ammeter of each kind is for taking obtained pattern in advance to the master meter of each kind, described static memory has also prestored ammeter information table, described ammeter information table with ammeter kind for index, save the infrared communication address of each ammeter, test character string, character upper limit gray threshold and character lower limit gray threshold, described character upper limit gray threshold and described character lower limit gray threshold are for being separated the character on the display screen of kind ammeter corresponding in image with image background, shooting secondary light source, comprise luminance sensor and lighting source, described luminance sensor is used for testing environment brightness, and described lighting source is connected with described luminance sensor, for adjusting illumination light intensity that it provides, that take for auxiliary high-definition camera based on described ambient brightness, alarm appliance, be connected with described flush bonding processor, comprise loudspeaker and warning LED, described loudspeaker warns file for playing the language corresponding with described defect alerting signal, described warning LED is used for showing redness when receiving described defect alerting signal, shows green when receiving zero defect cue, described high-definition camera comprises optical filter, camera lens and CMOS vision sensor, the position of described camera lens between described optical filter and described CMOS vision sensor, described high-definition camera is used for taking to export test pattern to the display screen of described detected ammeter, also for taking to export contour images to the profile of described detected ammeter, the resolution of described test pattern and described contour images is all 1920 × 1080, described visual detector is connected with described high-definition camera, comprise ammeter type identification unit, contrast strengthen unit, wavelet filtering unit, gray processing processing unit, Character segmentation unit and character recognition unit, described ammeter type identification unit, described contrast strengthen unit, described wavelet filtering unit, described gray processing processing unit, described Character segmentation unit and described character recognition unit adopt different fpga chips to realize respectively, described ammeter type identification unit is connected respectively with described high-definition camera and described static memory, described contour images is mated one by one with the benchmark image template of the ammeter of described various species, ammeter type corresponding for the benchmark image template that the match is successful is outputted in described static memory preserve as determining ammeter type, described contrast strengthen unit is connected to carry out contrast enhancement processing to described test pattern with described high-definition camera, image is strengthened to obtain, described wavelet filtering unit is connected to carry out wavelet filtering process to described enhancing image with described contrast strengthen unit, to obtain filtering image, described gray processing processing unit is connected with described wavelet filtering unit, gray processing process is carried out to described filtering image, to obtain gray level image, described Character segmentation unit is connected respectively with described gray processing processing unit and described static memory, gray-scale value in described gray level image is formed multiple character subimage in the pixel identification determining character upper limit gray threshold and determined between character lower limit gray threshold, described character recognition unit is connected with described Character segmentation unit, character corresponding to each character subimage is identified based on predetermined OCR recognizer, and according to each character subimage position in described gray level image, the multiple characters identified are combined, to obtain described identification string, the unit of described flush bonding processor and described visual detector, described static memory, described high-definition camera is connected respectively with described infrared communication interface, first control described high-definition camera and take described contour images, control described ammeter type identification unit identify described in determined ammeter type, subsequently, ammeter information table described in ammeter type search has been determined based on described in described static memory, infrared communication address corresponding to ammeter type has been determined described in obtaining, test character string, character upper limit gray threshold and character lower limit gray threshold respectively as determining infrared communication address, location survey examination character string, determine character upper limit gray threshold and determined character lower limit gray threshold to be saved in static memory, control described infrared communication interface to have the detected ammeter determining infrared communication address send comprise described in the test signal of location survey examination character string, so that described detected ammeter controls its display screen show the examination of the location survey character string that described test signal comprises, described flush bonding processor controls described high-definition camera shooting test pattern after Preset Time, and start described contrast strengthen unit, described wavelet filtering unit, described gray processing processing unit, described Character segmentation unit and described character recognition unit are to obtain described identification string, and the location survey preserved in described identification string and described static memory is tried character string match, the match is successful then sends zero defect cue, it fails to match then sends defect alerting signal.
More specifically, in described ammeter defect Intelligent testing equipment, also comprise: bar code resolver, to detect the bar code that detected ammeter posts, obtain address name and the station address of corresponding detected ammeter ownership.
More specifically, in described ammeter defect Intelligent testing equipment, also comprise: wireless communication interface, be connected with described flush bonding processor and described bar code resolver, described address name and described station address to be wirelessly transmitted to when receiving described defect alerting signal the power supply management platform of far-end.
More specifically, in described ammeter defect Intelligent testing equipment, the server of power supply management platform belonging to power supply management department of described wireless communication interface wireless connections.
More specifically, in described ammeter defect Intelligent testing equipment, also comprise: usb communication interface, be forwarded to described static memory for the benchmark image template of the ammeter by the various species in outside USB flash disk and ammeter information table and preserve.
More specifically, in described ammeter defect Intelligent testing equipment: described Preset Time is 2 seconds.
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 ammeter defect Intelligent testing equipment illustrated according to an embodiment of the present invention.
Fig. 2 is the block diagram of the shooting secondary light source of the ammeter defect Intelligent testing equipment illustrated according to an embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings the embodiment of ammeter defect Intelligent testing equipment of the present invention is described in detail.
Being widely used of ammeter is the most basic measuring terminal of power supply management division management user power utilization, and each electricity consumption user needs installation ammeter with its electricity consumption amount of real time measure, and thus, the demand of ammeter is large especially, and the market of ammeter is also very active.
Ammeter common on Vehicles Collected from Market can have following several mode classification: (1) is by purposes: industry and utility meters, electronic standard table, maximum demand meter, multi tariff table; (2) by structure and principle of work: induction type (mechanical type), state type (electronic type), electromechanical (hybrid); (3) by access power supply natures: alternating-current meter, direct current table; (4) by class of accuracy: conventional common table: 0.2S, 0.5S, 0.2,0.5,1.0,2.0 etc.; (5) by installing the mode of connection: direct access, indirectly access type; (6) by consumer: single-phase, phase three-wire three, three-phase and four-line electric energy meter.
There is query when the reading of user to ammeter display screen and report for repairment, or the power supply management department personnel that arrange work are when carrying out daily servicing to its ammeter managed, all need to use ammeter defect detection equipment to check ammeter, due to ammeter enormous amount, therefore the detection efficiency of ammeter defect detection equipment, accuracy and cost performance all require harshness.Existing manual detection mode or simple detection of electrons mode can not meet the current demand of power supply management department.
The present invention has built a kind of ammeter defect Intelligent testing equipment, first ammeter type is judged based on image recognition technology, to take differentiated display defect recognition technology based on dissimilar ammeter, the introducing of infrared communication technique and various character recognition technologies targetedly, accurately reliably completes the detection to ammeter display defect simultaneously.
Fig. 1 is the block diagram of the ammeter defect Intelligent testing equipment illustrated according to an embodiment of the present invention, described checkout equipment comprises infrared communication interface 1, high-definition camera 3, visual detector 4 and flush bonding processor 2, described flush bonding processor 2 is connected respectively with described infrared communication interface 1, described high-definition camera 3 and described visual detector 4, and described high-definition camera 3 is connected with described visual detector 4.
Wherein, described infrared communication interface 1 is for sending test massage to detected ammeter, so that described detected ammeter controls its display screen show the test character string that described test signal comprises, described high-definition camera 3 is for taking to export test pattern to the display screen of described detected ammeter, described visual detector 4 with for carrying out image procossing to described test pattern, to identify character string in described test pattern and to export as identification string, described flush bonding processor 2 is for comparing described identification string and described test character string, to determine whether to send defect alerting signal.
Then, continue to be further detailed the concrete structure of ammeter defect Intelligent testing equipment of the present invention.
Described checkout equipment also comprises: reset unit, and for each electronic unit in described checkout equipment is returned to default conditions, the default conditions of each electronic unit described are the state that described checkout equipment manufacturer sets when described checkout equipment dispatches from the factory.
Described checkout equipment also comprises: static memory, for prestoring the benchmark image template of the ammeter of various species, the benchmark image template of the ammeter of each kind is for taking obtained pattern in advance to the master meter of each kind, described static memory has also prestored ammeter information table, described ammeter information table with ammeter kind for index, save the infrared communication address of each ammeter, test character string, character upper limit gray threshold and character lower limit gray threshold, described character upper limit gray threshold and described character lower limit gray threshold are for being separated the character on the display screen of kind ammeter corresponding in image with image background.
As shown in Figure 2, described checkout equipment also comprises: shooting secondary light source 5, comprise luminance sensor 51 and lighting source 52, described luminance sensor 51 is for testing environment brightness, described lighting source 52 is connected with described luminance sensor 51, for adjusting illumination light intensity that it provides, that take for auxiliary high-definition camera based on described ambient brightness.
Described checkout equipment also comprises: alarm appliance, be connected with described flush bonding processor 2, comprise loudspeaker and warning LED, described loudspeaker warns file for playing the language corresponding with described defect alerting signal, described warning LED is used for showing redness when receiving described defect alerting signal, shows green when receiving zero defect cue.
Described high-definition camera 3 comprises optical filter, camera lens and CMOS vision sensor, the position of described camera lens between described optical filter and described CMOS vision sensor, described high-definition camera 3 is for taking to export test pattern to the display screen of described detected ammeter, also for taking to export contour images to the profile of described detected ammeter, the resolution of described test pattern and described contour images is all 1920 × 1080.
Described visual detector 4 is connected with described high-definition camera 3, described visual detector 4 comprises ammeter type identification unit, contrast strengthen unit, wavelet filtering unit, gray processing processing unit, Character segmentation unit and character recognition unit, and described ammeter type identification unit, described contrast strengthen unit, described wavelet filtering unit, described gray processing processing unit, described Character segmentation unit and described character recognition unit adopt different fpga chips to realize respectively.
Described ammeter type identification unit is connected respectively with described high-definition camera 3 and described static memory, described contour images is mated one by one with the benchmark image template of the ammeter of described various species, ammeter type corresponding for the benchmark image template that the match is successful is outputted in described static memory preserve as determining ammeter type.
Described contrast strengthen unit is connected to carry out contrast enhancement processing to described test pattern with described high-definition camera 3, image is strengthened to obtain, described wavelet filtering unit is connected to carry out wavelet filtering process to described enhancing image with described contrast strengthen unit, to obtain filtering image, described gray processing processing unit is connected with described wavelet filtering unit, gray processing process is carried out to described filtering image, to obtain gray level image, described Character segmentation unit is connected respectively with described gray processing processing unit and described static memory, gray-scale value in described gray level image is formed multiple character subimage in the pixel identification determining character upper limit gray threshold and determined between character lower limit gray threshold, described character recognition unit is connected with described Character segmentation unit, character corresponding to each character subimage is identified based on predetermined OCR recognizer, and according to each character subimage position in described gray level image, the multiple characters identified are combined, to obtain described identification string.
Described flush bonding processor 2 is connected respectively with the unit of described visual detector 4, described static memory, described high-definition camera 3 and described infrared communication interface 1, first control described high-definition camera 3 and take described contour images, control described ammeter type identification unit identify described in determined ammeter type.
Subsequently, ammeter information table described in ammeter type search has been determined based on described, to have determined infrared communication address corresponding to ammeter type, test character string, character upper limit gray threshold and character lower limit gray threshold try character string as determining infrared communication address, location survey, determine character upper limit gray threshold and determined character lower limit gray threshold and be saved in static memory described in obtaining in described static memory.
Afterwards, described flush bonding processor 2 control described infrared communication interface 1 to have the detected ammeter determining infrared communication address send comprise described in the test signal of location survey examination character string so that described detected ammeter controls its display screen show the examination of the location survey character string that described test signal comprises.
Finally, described flush bonding processor 2 controls described high-definition camera 3 and takes test pattern after Preset Time, and start described contrast strengthen unit, described wavelet filtering unit, described gray processing processing unit, described Character segmentation unit and described character recognition unit to obtain described identification string, and the location survey preserved in described identification string and described static memory is tried character string match, the match is successful then sends zero defect cue, and it fails to match then sends defect alerting signal.
Wherein, described checkout equipment can also comprise: bar code resolver, to detect the bar code that detected ammeter posts, obtains address name and the station address of corresponding detected ammeter ownership; Wireless communication interface, be connected with described flush bonding processor 2 and described bar code resolver, described address name and described station address to be wirelessly transmitted to when receiving described defect alerting signal the power supply management platform of far-end, the power supply management platform of described wireless communication interface wireless connections can server belonging to power supply management department.
Wherein, described checkout equipment can also comprise: usb communication interface, be forwarded to described static memory and preserve, and alternatively, described Preset Time is 2 seconds for the benchmark image template of the ammeter by the various species in outside USB flash disk and ammeter information table.
In addition, infrared communication is a kind of communication mode utilizing infrared transmission information, can be used for the information such as transmission language, word, data, image.The angle of infrared transmission has a definite limitation, and infrared wavelength range is 0.70 μm of-1mm, and wherein the ripple in 300 μm of-1mm regions is also referred to as submillimeter wave.Air on infrared radiation transmission mainly affect absorption and scattering.
Infrared communication utilizes the infrared ray of 950nm near-infrared band as the media of transmission of information, i.e. communication channel.Base band binary signal is modulated to a series of burst signal by transmitting terminal, launches infrared signal by infrared transmitting tube.Receiving end converts the light arteries and veins received to electric signal, then after the process such as amplification, filtering, gives demodulator circuit carry out demodulation, exports after being reduced to binary digital signal.Conventional have realize the width modulation (PWM) of signal madulation by pulse width and realized pulse-time modulation (PPM) two kinds of methods of signal madulation by the time interval between train of impulses.
Infrared-ray communication technology comprises following specification: IrPHY, IrLAP, IrLMP, IrCOMM, TinyTP, IrOBEX, IrLAN and IrSimple.
Wherein, IrDA1.0 standard is called for short SIR (Serial Infrared, serial infrared agreement), he is a kind of asynchronous, the semiduplex over the horizon communication system developed based on HP-SIR, he is with the asynchronous communication transceiver of system (Universal Asynchronous Receiver/Transmitter, UART) rely on, realize infrared data transmission by the waveform compression to serial data pulse and this encoding-decoding process of extending waveform (3/16EnDec) to received light signal electric pulse.The peak data rate of SIR only has 115.2kbps.In 1996, issue IrDA1.1 agreement, be called for short FIR (FastInfrared, fast infrared agreement), adopt 4PPM (Pulse Position Modulation, displacement modulation) coding and decoding mechanism, the maximum data transfer rate can reach 4Mbps, retains the regulation of 1.0 standards when low speed simultaneously.Afterwards, IrDA is proposed again VFIR (Very FastInfrared) technology of highest communication speed at 16Mbps, and it can be used as supplement include IrDA1.1 standard in.
IrDA standard all comprises three basic specifications and agreement: infrared physical layer is connected specification IrPHY (Infrared Physical Layer Link Specification), infrared connected reference agreement IrLAP (Infrared Link Access Protoco1) and infrared connection management agreement IrLMP Infrared LinkManagement Protoco1).IrPHY specification has worked out target in infrared communication hardware design and requirement; IrLAP and IrLMP is two software layers, is responsible for arranging connection, administering and maintaining.On IrLAP and IrLMP basis, for some specific infrared communication applications, IrDA has also issued the infrared protocol of some higher levels successively, as TinyTP, IrOBEX, IrCOMM, IrLAN, IrTran-P and IrBus etc.
Adopt ammeter defect Intelligent testing equipment of the present invention, low for existing ammeter defect detecting technique detection efficiency, detect poor compatibility and the low technical matters of accuracy of detection, first the type of detected ammeter is identified, then different inspection policies is determined according to ammeter type, wherein use infrared communication technique to ensure detected information interaction between ammeter and checkout equipment, realize the high precision to all kinds of ammeter display defect, high efficiency fully-automated synthesis.
Be understandable that, although the present invention with preferred 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 under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of 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 (7)
1. an ammeter defect Intelligent testing equipment, it is characterized in that, described checkout equipment comprises infrared communication interface, high-definition camera, visual detector and flush bonding processor, described infrared communication interface is used for sending test massage to detected ammeter, so that described detected ammeter controls its display screen show the test character string that described test signal comprises, described high-definition camera is used for taking to export test pattern to the display screen of described detected ammeter, described visual detector is connected with described high-definition camera, for carrying out image procossing to described test pattern, to identify character string in described test pattern and to export as identification string, described flush bonding processor is connected with described visual detector, for described identification string and described test character string are compared, to determine whether to send defect alerting signal.
2. ammeter defect Intelligent testing equipment as claimed in claim 1, it is characterized in that, described checkout equipment also comprises:
Reset unit, for each electronic unit in described checkout equipment is returned to default conditions, the default conditions of each electronic unit described are the state that described checkout equipment manufacturer sets when described checkout equipment dispatches from the factory;
Static memory, for prestoring the benchmark image template of the ammeter of various species, the benchmark image template of the ammeter of each kind is for taking obtained pattern in advance to the master meter of each kind, described static memory has also prestored ammeter information table, described ammeter information table with ammeter kind for index, save the infrared communication address of each ammeter, test character string, character upper limit gray threshold and character lower limit gray threshold, described character upper limit gray threshold and described character lower limit gray threshold are for being separated the character on the display screen of kind ammeter corresponding in image with image background,
Shooting secondary light source, comprise luminance sensor and lighting source, described luminance sensor is used for testing environment brightness, and described lighting source is connected with described luminance sensor, for adjusting illumination light intensity that it provides, that take for auxiliary high-definition camera based on described ambient brightness;
Alarm appliance, be connected with described flush bonding processor, comprise loudspeaker and warning LED, described loudspeaker warns file for playing the language corresponding with described defect alerting signal, described warning LED is used for showing redness when receiving described defect alerting signal, shows green when receiving zero defect cue;
Described high-definition camera comprises optical filter, camera lens and CMOS vision sensor, the position of described camera lens between described optical filter and described CMOS vision sensor, described high-definition camera is used for taking to export test pattern to the display screen of described detected ammeter, also for taking to export contour images to the profile of described detected ammeter, the resolution of described test pattern and described contour images is all 1920 × 1080;
Described visual detector is connected with described high-definition camera, comprise ammeter type identification unit, contrast strengthen unit, wavelet filtering unit, gray processing processing unit, Character segmentation unit and character recognition unit, described ammeter type identification unit, described contrast strengthen unit, described wavelet filtering unit, described gray processing processing unit, described Character segmentation unit and described character recognition unit adopt different fpga chips to realize respectively, described ammeter type identification unit is connected respectively with described high-definition camera and described static memory, described contour images is mated one by one with the benchmark image template of the ammeter of described various species, ammeter type corresponding for the benchmark image template that the match is successful is outputted in described static memory preserve as determining ammeter type, described contrast strengthen unit is connected to carry out contrast enhancement processing to described test pattern with described high-definition camera, image is strengthened to obtain, described wavelet filtering unit is connected to carry out wavelet filtering process to described enhancing image with described contrast strengthen unit, to obtain filtering image, described gray processing processing unit is connected with described wavelet filtering unit, gray processing process is carried out to described filtering image, to obtain gray level image, described Character segmentation unit is connected respectively with described gray processing processing unit and described static memory, gray-scale value in described gray level image is formed multiple character subimage in the pixel identification determining character upper limit gray threshold and determined between character lower limit gray threshold, described character recognition unit is connected with described Character segmentation unit, character corresponding to each character subimage is identified based on predetermined OCR recognizer, and according to each character subimage position in described gray level image, the multiple characters identified are combined, to obtain described identification string,
The unit of described flush bonding processor and described visual detector, described static memory, described high-definition camera is connected respectively with described infrared communication interface, first control described high-definition camera and take described contour images, control described ammeter type identification unit identify described in determined ammeter type, subsequently, ammeter information table described in ammeter type search has been determined based on described in described static memory, infrared communication address corresponding to ammeter type has been determined described in obtaining, test character string, character upper limit gray threshold and character lower limit gray threshold respectively as determining infrared communication address, location survey examination character string, determine character upper limit gray threshold and determined character lower limit gray threshold to be saved in static memory, control described infrared communication interface to have the detected ammeter determining infrared communication address send comprise described in the test signal of location survey examination character string, so that described detected ammeter controls its display screen show the examination of the location survey character string that described test signal comprises, described flush bonding processor controls described high-definition camera shooting test pattern after Preset Time, and start described contrast strengthen unit, described wavelet filtering unit, described gray processing processing unit, described Character segmentation unit and described character recognition unit are to obtain described identification string, and the location survey preserved in described identification string and described static memory is tried character string match, the match is successful then sends zero defect cue, it fails to match then sends defect alerting signal.
3. ammeter defect Intelligent testing equipment as claimed in claim 2, it is characterized in that, described checkout equipment also comprises:
Bar code resolver, to detect the bar code that detected ammeter posts, obtains address name and the station address of corresponding detected ammeter ownership.
4. ammeter defect Intelligent testing equipment as claimed in claim 3, it is characterized in that, described checkout equipment also comprises:
Wireless communication interface, is connected with described flush bonding processor and described bar code resolver, described address name and described station address to be wirelessly transmitted to when receiving described defect alerting signal the power supply management platform of far-end.
5. ammeter defect Intelligent testing equipment as claimed in claim 4, is characterized in that:
The server of power supply management platform belonging to power supply management department of described wireless communication interface wireless connections.
6. ammeter defect Intelligent testing equipment as claimed in claim 2, it is characterized in that, described checkout equipment also comprises:
Usb communication interface, is forwarded to described static memory for the benchmark image template of the ammeter by the various species in outside USB flash disk and ammeter information table and preserves.
7. ammeter defect Intelligent testing equipment as claimed in claim 2, is characterized in that: described Preset Time is 2 seconds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287028.7A CN105891765B (en) | 2015-03-08 | 2015-03-08 | Ammeter defect Intelligent testing equipment |
| CN201610278789.6A CN105717477B (en) | 2015-03-08 | 2015-03-08 | Ammeter defect Intelligent testing equipment |
| CN201610287015.XA CN105911508B (en) | 2015-03-08 | 2015-03-08 | Ammeter defect Intelligent testing equipment |
| CN201510100771.2A CN104614701B (en) | 2015-03-08 | 2015-03-08 | Ammeter defect Intelligent testing equipment |
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| CN201610278789.6A Division CN105717477B (en) | 2015-03-08 | 2015-03-08 | Ammeter defect Intelligent testing equipment |
| CN201610287015.XA Division CN105911508B (en) | 2015-03-08 | 2015-03-08 | Ammeter defect Intelligent testing equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN105093167A (en) * | 2015-04-01 | 2015-11-25 | 郑海雁 | Automatic failure detection terminal for outdoor electric energy meter |
| CN104899879B (en) * | 2015-05-21 | 2017-11-03 | 国家电网公司 | A kind of method of the online outward appearance detection of electric energy meter |
| CN104899879A (en) * | 2015-05-21 | 2015-09-09 | 国家电网公司 | Online appearance detection method for power meter |
| CN107422294A (en) * | 2017-05-08 | 2017-12-01 | 国网山东省电力公司莱芜供电公司 | A kind of ammeter defect Intelligent testing equipment |
| CN108573489A (en) * | 2018-04-22 | 2018-09-25 | 杨娟 | It hurdles integrity degree detection platform |
| CN110907885B (en) * | 2019-12-06 | 2021-10-01 | 国网湖北省电力有限公司计量中心 | Method and system for evaluating field operation state of digital electric energy metering system |
| CN110907885A (en) * | 2019-12-06 | 2020-03-24 | 国网湖北省电力有限公司计量中心 | Method and system for evaluating field operation state of digital electric energy metering system |
| CN111426864A (en) * | 2020-04-18 | 2020-07-17 | 无锡意美浩科技有限公司 | Universal meter with high-voltage warning function |
| CN112148555A (en) * | 2020-09-14 | 2020-12-29 | 贵州电网有限责任公司 | Intelligent reading and identifying method and system for fault warning information |
| CN113589217A (en) * | 2021-07-31 | 2021-11-02 | 万安裕高电子科技有限公司 | Intelligent ammeter defect detection device |
| CN117095389A (en) * | 2023-10-19 | 2023-11-21 | 南京电力自动化设备三厂有限公司 | Image data processing method and system based on liquid crystal visual recognition unit |
| CN117095389B (en) * | 2023-10-19 | 2024-02-06 | 南京电力自动化设备三厂有限公司 | Image data processing method and system based on liquid crystal visual recognition unit |
| CN117173720A (en) * | 2023-11-02 | 2023-12-05 | 江苏云上电力科技有限公司 | Processing method and device suitable for intelligent energy unit |
| CN117173720B (en) * | 2023-11-02 | 2024-02-09 | 江苏云上电力科技有限公司 | Processing method and device suitable for intelligent energy unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104614701B (en) | 2016-09-14 |
| CN105911508B (en) | 2018-06-26 |
| CN105891765A (en) | 2016-08-24 |
| CN105891765B (en) | 2018-11-13 |
| CN105911508A (en) | 2016-08-31 |
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