CN106529524A - Automatic detector device for digital image identification of gas meter - Google Patents
Automatic detector device for digital image identification of gas meter Download PDFInfo
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- CN106529524A CN106529524A CN201611072568.XA CN201611072568A CN106529524A CN 106529524 A CN106529524 A CN 106529524A CN 201611072568 A CN201611072568 A CN 201611072568A CN 106529524 A CN106529524 A CN 106529524A
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- gas meter
- meter
- flow meter
- digital image
- gas
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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
- G06V10/10—Image acquisition
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- General Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention, which belongs to the computer embedded processing field, especially to the research on a digital image processing method of an FPGA, relates to an automatic detector device for digital image identification of a gas meter. The automatic detector device is mainly used for realizing sampling of the volumic number of the detected gas meter in an automatic control system of a bell jar type gas flow standard device being a gas meter detection device and generating a pulse. In order to solve a problem of low efficiency of a photoelectric sampler during the gas meter detection process, the invention designs an automatic detector device for digital image identification of a gas meter, thereby completing volumic number sampling of the gas meter and generating a pulse. Hardware logic programming is used and a data stream processing method is employed, thereby guaranteeing the real-time property of the pulse and one-circle rotation of numbers of the dial plate of the gas meter. Meanwhile, with an embedded system, separation from an upper computer is realized, thereby guaranteeing independence and convenience of system application. Besides, the automatic detector device can be applied to application involved in image repetition detection.
Description
Technical field
The present invention relates to a kind of gas meter, flow meter digital image understanding automatic detection instrument apparatus, belong to computer embedded processing neck
The digital image processing method research in domain, more particularly to FPGA, for realizing in gas meter detection device, i.e. bell-jar gas
The sampling of gas meter, flow meter entirety product in flow standard device automatic control system.
Background technology
Product export quality inspection and gauge check unit are carried out in gas meter, flow meter manufacturer carries out quality inspection to gas meter, flow meter product
When testing, examined and determine using bell-jar gas flow standard equipment.Gas flow standard device has commonly used computer at present
Measure and control, but in tested flow-meter umber of pulse detection, be but still difficult to automatic detection and control, increased
Manufacturer and the workload of metrological service operator, become the problem of its highly desirable solution, are converted into gas
The improved demand of flow standard device.
Bell-jar gas flow standard equipment automatic control system measurable bell jar operation umber of pulse, tested table umber of pulse,
Detection time, bell jar temperature, bell jar pressure, pressure loss etc..Integrated flux and instantaneous delivery is calculated, with pulse equivalency and quilt
Inspection table instrument coefficient preparatory function.Detection is automatically stopped after integrated flux reaches preset number, also manually can be stopped.And available press
Button controls the ascending, descending of bell jar.Can be used to examine and determine, test various volumetric flowmeters, improve accuracy in detection and automaticity.
The instrument controls timing technology using microcomputer so as to high with accuracy, strong antijamming capability, stable and reliable in work, small volume,
Lightweight many advantages, such as, the calibration operation for factories and miness, measurement unit, provide conveniently.
In conventional bell-jar gas flow standard equipment, the sampling of tested gas meter, flow meter volumetric pulse number is by a kind of light
There is a special marking paillette on the digital dial plate of electric sampler, i.e. gas meter, flow meter, photoelectric sampler is irradiated to paillette and completes once
Volume reading, exports a pulse to computer, completes overall product and adds up, and it is installation difficulty that this kind of device has shortcoming, and
And irradiation area can be crossed and need etc. once to go on paillette because paillette position is just inclined when the low discharge of gas meter, flow meter is detected
Irradiation area, thus it is less efficient.
The content of the invention
It is an object of the invention to overcome the shortcoming of photoelectric sampler in above-mentioned bell-jar gas flow standard equipment, there is provided
A kind of a kind of gas meter, flow meter digital image understanding automatic detection instrument apparatus higher with real-time, automatization, generalization degree.This
System expandable, transplantation, exploitation maintenance cost are lower, reliability is higher.
To achieve these goals, gas meter, flow meter digital image understanding automatic detection instrument apparatus of the invention are as follows：
A kind of gas meter, flow meter digital image understanding automatic detection instrument apparatus, it is characterised in that：It is mainly characterized by,
The gas meter, flow meter digital picture automatic tester meter apparatus include FPGA central processing modules, image capture module, soon
Fast memory module, image display, function handover module, and pulse send module.
Described gas meter, flow meter digital image understanding automatic detection instrument apparatus, with FPGA as nucleus module, first Application is in clock
In bell-type gas flow standard device automatic control system, replace photoelectric sampler to have easy for installation, put forward efficient advantage.
Described gas meter, flow meter digital image understanding automatic detection instrument apparatus, employ data flow real-time processing, and are furnished with
Screen is shown in real time, as long as the unit numbers of gas meter, flow meter are included that the rectangle inframe on screen adjusts definition by installation personnel
Just can be so that photoelectric sampler needs constantly adjustment light source direction, gas meter, flow meter roller to rotate multi-turn to verify photoelectric sampler light
Source targeted by identification point, and thus, automatic tester is easy for installation.
Described gas meter, flow meter digital image understanding automatic detection instrument apparatus, delivery plate is installed in automatic tester
Afterwards, place can press Template button delivery plate to the numeral on the digital dial plate of gas meter, flow meter at an arbitrary position, replace photoelectric sampler
Single bright spot is designated template, with template multiformity feature.When gas meter, flow meter verifies low discharge, this feature being capable of pole
The working time of big shortening operator, work efficiency highest can improve 50 percent.
Described FPGA central processing modules, realize traditional software image processing algorithm, at image with hardware logic
The process directly transplanting of reason overcomes the problem of the low-response of traditional images process, while reducing exploitation in fpga chip
Cost, enhances the portable and extensibility of image recognition, it is easy to safeguard.Employ data flow real-time processing, FPGA tools
The characteristics of having parallel processing, and high-frequency clock is adopted, efficiently solve the problems, such as system delay.
Described image capture module, employs special COMS imageing sensors, and small volume, running voltage are low, pass through
SCCB bus marcos, can be to export the various resolution 8 of whole frame, the modes such as window of sampling certainly, take as image data.VGA images
Up to 30 frames/second, are that the overall real-time of gas meter, flow meter digital image understanding automatic detection instrument apparatus is laid a good foundation.
Described quick storage module, employs SDRAM i.e. synchronous DRAM, freely specifies address to enter line number
According to read-write, it is ensured that the quick transmission of data flow.
Described image display, our sizes according to device have chosen a 2.4 cun of TFT screens as dress
The display module put, used as the window of man-machine interaction.
Described function handover module, mainly realizes cutting for gas meter, flow meter digital image understanding automatic tester apparatus function
Change, it is main include resetting, template collection, and image real time contrast.The simplicity of its operation is also ensure that in the convenient of application
Property.
Described pulse sends module, mainly realize gas meter, flow meter numeral dial plate when turning around, and pulse is sent in real time.
Description of the drawings
Fig. 1 is bell-jar gas flow standard equipment automatic control system structural representation.
Fig. 2 is gas meter, flow meter digital image understanding automatic detection instrument apparatus operation principle schematic diagram.
Fig. 3 is gas meter, flow meter digital image understanding automatic tester apparatus function modular structure schematic diagram.
Specific embodiment
In order to the clearer technology contents for understanding the present invention, describe in detail especially exemplified by following examples.
With reference to such as Fig. 1, following bell-jar gas flow standard equipment automatic control system operation principle is introduced first as follows：
Bell-jar gas flow standard equipment automatic control system measurable bell jar operation umber of pulse, tested table umber of pulse, detection time,
Bell jar temperature, bell jar pressure, pressure loss etc..Integrated flux and instantaneous delivery is calculated, with pulse equivalency and tested table instrument
Factory pre-set function.Detection is automatically stopped after integrated flux reaches preset number, also manually can be stopped.And available buttons control clock
The ascending, descending of cover.The integrated flow sampled with automatic tester using the integrated flow of bell jar is asking tested gas meter, flow meter or flow
The error of meter.Can be used to examine and determine, test various volumetric flowmeters, improve accuracy in detection and automaticity.The instrument is adopted
Timing technology is controlled with microcomputer so as to high with accuracy, strong antijamming capability, stable and reliable in work, small volume, lightweight etc.
Many advantages, the calibration operation for factories and miness, measurement unit are provided conveniently.
With reference to such as Fig. 2, the gas meter, flow meter digital image understanding automatic detection instrument apparatus operation principle is as follows：According to device screen
The requirement of epigraph installs automatic tester.The imageing sensor of front end collects image information, through the A/D of inside modules
Conversion, is transferred to inside fpga chip, first passes around binaryzation, converts the image into black and white picture and is shown by TFT screens
Show；Click function switching key, switches the device into template storage, according to the picture element position information of picture, chooses and specifies size
View data, stored to SDRAM in order；Device is switched to figure by image real time contrast's button of click function switching
As comparing state in real time, the view data of now imageing sensor collection is compared in real time with the template image data of storage,
When two images meet similarity to be required, output pulse signal is sent to host computer, represents that gas meter, flow meter makes a circle,
Umber of pulse i.e. the whole ten volumes sampled value of gas meter, flow meter that host computer is obtained.
With reference to such as Fig. 3, the gas meter, flow meter digital picture automatic detection instrument apparatus include FPGA central processing modules, image acquisition
Module, quick storage module, image display, function handover module, and pulse send module.
Described FPGA central processing modules, realize traditional software image processing algorithm, at image with hardware logic
The process directly transplanting of reason overcomes the problem of the low-response of traditional images process, while reducing exploitation in fpga chip
Cost, enhances the portable and extensibility of image recognition, it is easy to safeguard.Employ data flow real-time processing, FPGA tools
The characteristics of having parallel processing, and high-frequency clock is adopted, efficiently solve the problems, such as system delay.
Described image capture module, employs special COMS imageing sensors, and small volume, running voltage are low, pass through
SCCB bus marcos, can be with the whole frame of output, sub-sampling, 8 image datas of various resolution for taking the modes such as window.VGA images
Up to 30 frames/second, are that the overall real-time of gas meter, flow meter digital image understanding automatic detection instrument apparatus is laid a good foundation.
Described quick storage module, employs SDRAM i.e. synchronous DRAM, freely specifies address to enter line number
According to read-write, it is ensured that the quick transmission of data flow.
Described image display, our sizes according to device have chosen a 2.4 cun of TFT screens as dress
The display module put, used as the window of man-machine interaction.
Described function handover module, mainly realizes cutting for gas meter, flow meter digital image understanding automatic tester apparatus function
Change, it is main include resetting, template collection, and image real time contrast.Its operation simplicity also ensure that using when just
It is prompt.
Described pulse sends module, mainly realizes that gas meter, flow meter numeral dial plate position is turned around the moment, pulse it is real-time
Send.
Claims (4)
1. a kind of gas meter, flow meter digital image understanding automatic detection instrument apparatus, it is characterised in that：It is mainly characterized by, the gas meter, flow meter numeral
Automatic image detector meter apparatus include FPGA central processing modules, image capture module, quick storage module, function switching mould
Block, and pulse sends module.
2. gas meter, flow meter digital image understanding automatic detection instrument apparatus as claimed in claim 1, with FPGA as nucleus module, first
Apply in bell-jar gas flow standard equipment automatic control system, replace photoelectric sampler to have easy for installation, improve effect
The advantage of rate.
3. gas meter, flow meter digital image understanding automatic detection instrument apparatus as claimed in claim 1, employ data flow real-time processing,
And it is furnished with screen to show in real time, as long as the unit numbers of gas meter, flow meter dial plate to be included operator the rectangle inframe on screen
Definition is adjusted, but photoelectric sampler needs constantly adjustment light source direction of illumination, rotate many by gas meter, flow meter dial digital
Thus circle can be obtained, gas meter, flow meter image recognition automatic detection instrument apparatus with verifying photoelectric sampler source alignment paillette identification point
It is easy for installation.
4. gas meter, flow meter digital image understanding automatic detection instrument apparatus as claimed in claim 1, its delivery plate is in automatic detection
After instrument is installed, place can press Template button delivery plate to the digital dial plate of gas meter, flow meter at an arbitrary position, replace photoelectricity sampling
The single paillette mark of device, with template multiformity feature.And when gas meter, flow meter low discharge is verified, this feature being capable of pole
The working time of big shortening operator, work efficiency highest can improve 50 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072568.XA CN106529524A (en) | 2016-11-29 | 2016-11-29 | Automatic detector device for digital image identification of gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072568.XA CN106529524A (en) | 2016-11-29 | 2016-11-29 | Automatic detector device for digital image identification of gas meter |
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| CN106529524A true CN106529524A (en) | 2017-03-22 |
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| CN201611072568.XA Pending CN106529524A (en) | 2016-11-29 | 2016-11-29 | Automatic detector device for digital image identification of gas meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332976A (en) * | 2019-08-09 | 2019-10-15 | 盐城市计量测试所 | One kind being based on the matched gas meter, flow meter automatic calibration device of iconic model and method |
| CN111031222A (en) * | 2019-12-27 | 2020-04-17 | 山东厚德测控技术股份有限公司 | Real-time recognition device and method for character wheel of camera type gas meter |
| CN111076779A (en) * | 2019-12-03 | 2020-04-28 | 金卡智能集团股份有限公司 | Metering detection system based on cloud server storage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105868756A (en) * | 2016-03-22 | 2016-08-17 | 武汉蓝焰自动化应用技术有限责任公司 | Gas meter counter direct reading system and direct reading method by applying digital image recognition technology |
-
2016
- 2016-11-29 CN CN201611072568.XA patent/CN106529524A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105868756A (en) * | 2016-03-22 | 2016-08-17 | 武汉蓝焰自动化应用技术有限责任公司 | Gas meter counter direct reading system and direct reading method by applying digital image recognition technology |
Non-Patent Citations (1)
| Title |
|---|
| 汪祥 等: "流媒体与图像处理的多工位燃气表检定系统", 《中国计量学院学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332976A (en) * | 2019-08-09 | 2019-10-15 | 盐城市计量测试所 | One kind being based on the matched gas meter, flow meter automatic calibration device of iconic model and method |
| CN110332976B (en) * | 2019-08-09 | 2024-04-12 | 盐城市计量测试所 | Automatic calibration device and method for gas meter based on image model matching |
| CN111076779A (en) * | 2019-12-03 | 2020-04-28 | 金卡智能集团股份有限公司 | Metering detection system based on cloud server storage |
| CN111031222A (en) * | 2019-12-27 | 2020-04-17 | 山东厚德测控技术股份有限公司 | Real-time recognition device and method for character wheel of camera type gas meter |
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Application publication date: 20170322 |