CN102721878A - Intelligentized automatic checkout device of quartz crystal oscillator instrument - Google Patents
Intelligentized automatic checkout device of quartz crystal oscillator instrument Download PDFInfo
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- CN102721878A CN102721878A CN2011100763358A CN201110076335A CN102721878A CN 102721878 A CN102721878 A CN 102721878A CN 2011100763358 A CN2011100763358 A CN 2011100763358A CN 201110076335 A CN201110076335 A CN 201110076335A CN 102721878 A CN102721878 A CN 102721878A
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Abstract
The invention discloses an intelligentized automatic checkout device of a quartz crystal oscillator instrument, comprising a channel switching and controlling device, a frequency scale comparator/counter, a monitor, a data acquisition device, a digit identification and control software, a background data processing and database management software. The data acquisition device is provided with a camera. After the camera collects an image of an instrument panel to be checked out, the image is output to the frequency scale comparator/counter through a detection channel of the switching and controlling device, then the collected instrument to be checked out is compared with a standard instrument, frequency scale comparison or frequency enumeration is completed and is monitored in real time by the monitor through a computer display screen, the data acquisition device completes image acquisition work of the instrument panel to be checked out, and the digit identification and control software carries out digital image processing of the collected image, then carries out image segmentation, then carries out high precision identification of the segmented digital image through artificial intelligence technology, obtains display data of the digit instrument , saves the data in a database, then carries out data processing of the data according to a verification regulation, and finally forms a detection record and a detection report.
Description
Technical field
The present invention relates to the measuring and testing device of quartz oscillator; Especially be the intelligent automatic pick-up unit of quartz oscillator in a kind of completion digital instrument (instrument), it is applicable to digital instrument that includes outer frequency marking output and the digital instrument that does not have outer frequency marking output.
Background technology
Digital instrument has obtained using widely in various modern industry enterprise, and measurement verification department need regularly detect the quartz oscillator of these digital devices.Quartz oscillator is the oscillator of high precision and high stability; Be widely used in all kinds of oscillatory circuits such as colour TV, computing machine, telepilot, and be used for frequency generator in the communication system, reference signal be provided for the data processing equipment clocking with for particular system.
At present, more domestic companies or individual application have been arranged pick-up unit or the related patent U.S. Patent No. of system of quartz oscillator; As; The on-line detecting system of quartz oscillator (CN101419262); Unattended automatic test system of quartz crystal oscillator (CN101515009); A kind of test adjusting gear of quartz oscillator and method (CN1657957), system for automatically testing parameters of quartz crystal oscillator (CN101713811A) etc., above-mentioned these test macros (device) all are the tests to the quartz oscillator element; And present detection to the quartz oscillator digital instrument; The checkout equipment of testing agency's introducing both at home and abroad all adopts the automatic recording mode of outer frequency marking relative method, and there is following weak point in this detection mode: (1) it require standard device and equipment to be detected must support outer frequency marking output, yet; In real work; Also have the digital instrument of the outer frequency marking output of a large amount of nothings, at this moment, use above-mentioned this automatic recording mode can't accomplish detection.For this reason; Existing will the completion do not have the equipment testing that outer frequency marking is exported; The detection of its quartz oscillator can only be accomplished through artificial, but it detects the duration very long (often reaching tens of hours), and most of metrological service need adopt the mode of many people's changing shifts to solve; In addition, this checkout equipment can only print the raw data associated in the testing process, and the testing staff needs these data of artificial treatment, and calculated amount is bigger, inefficiency.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the above-mentioned prior art; And a kind of intelligent testing process that can accomplish the digital instrument quartz oscillator automatically is provided, and can accomplish the processing of detection data and the intelligent automatic pick-up unit that the form certificate generates automatically.
The objective of the invention is to realize like this.
The intelligent automatic pick-up unit of a kind of quartz oscillator instrument is characterized in that, it comprises passage switching and controller, frequency marking comparer/counter, monitor, data acquisition equipment, digit recognition and Control Software, intelligent parameter control unit, back-end data process software and database management language; Data acquisition equipment is provided with the camera that is used to monitor seized instrument; Behind the seized instrument panel image of camera collection, export frequency marking comparer/counter to by the sense channel that switches with controller control, seized instrument and standard meter that frequency marking comparer/counter will collect are compared; Accomplish frequency marking comparison or frequency computation part; And monitor in real time through computer display screens by monitor, data acquisition equipment is accomplished seized instrument panel image collecting work, by digit recognition and controller the image of gathering is carried out the digital picture pre-service again; And carry out image segmentation; Through artificial intelligence technology the digital picture of cutting apart is carried out high precision identification then, obtain the video data of digital instrument, and be saved in the database; And then these data are carried out data processing according to vertification regulation, finally form detection record and examining report.
The object of the invention can also adopt following technical measures to solve.
As better embodiment, four cameras can be installed at most on the said data acquisition equipment, each camera is used to monitor four seized instrument; Therefore; Native system is supported the online detection simultaneously of 16 equipment at most, and in testing process, per four seized instrument are one group; A sense channel by correspondence is exported, and controls respectively and detect by switching with controller.
As implementing more specifically, said passage switches with controller and is provided with control module core PLC, and PLC is connected with computing machine (host computer) and by computing machine (host computer) instruction control, with the execution corresponding actions; Use Industry Control PLC can guarantee the accurate of detection time, reduce the electromagnetic interference (EMI) of the seized equipment of outer bound pair, guarantee the reliable of pick-up unit long-time steady operation and testing result.And, can carry out accurate opertaing device according to the parameter that is provided with in the computing machine, in testing process, can adjust correlation parameter to arrive the control corresponding requirement according to different needs.
Said frequency marking comparer/counter also is connected with standard meter; Frequency marking comparer/counter is compared seized instrument and standard meter; Determine whether frequency marking output and the different detection methods of selecting frequency difference multiplication method, reading standard law and read seized method through selector button, accomplish frequency marking comparison or frequency counting; Above-mentioned frequency difference multiplication method, read standard law and read the concrete detection method of seized method, and frequency computation part, can be referring to the introduction of embodiment part.
Said monitor is connected between frequency marking comparer/counter and the data acquisition equipment; So that through the real-time monitoring of computer display screens to the testing process and the intermediate result of each sense channel, each measuring instrument; Make the testing staff can understand the detection progress and the effect of each measuring instrument in real time, conveniently corresponding adjustment is made in detection.
Said intelligent controlled variable equipment is that the user requires and the predefined running parameter of detection rules according to detecting, and can accomplish the robotization testing process of each sense channel, each instrument automatically according to this parameter.
Said back-end data process software is accomplished the post-production and the data storage operations of data according to detecting journey.
Said database management language also is connected with record queries and certificate PRN device, uses for people's inquiry and certificate printing desired.
The invention has the beneficial effects as follows.
(1) the intelligent automatic pick-up unit of quartz oscillator instrument of the present invention; Both can be used for detection with the quartz oscillator digital instrument of frequency marking output; Also can be used for not being with the detection of the quartz oscillator digital instrument of frequency marking output; And simple and reliable, cost is low, the advantage that detection efficiency is high; Its required equipment is a PC computing machine, is channel controller and camera (video heads) of core etc. with PLC.
(2) this kind of automatic detection device, it is easy to use, operation is simple and easy, and the whole operation of device is a visualization interface, need only have simple computer operation knowledge just can accomplish detection.
(3) have again; Automatic detection device of the present invention; Realized the efficiently integrated of quartz oscillator Measuring and testing and MIS (MIS), can carry out informationalized data management, and required report can directly generate automatically and print according to vertification regulation for the test section door.
Description of drawings
Fig. 1 is the pie graph of the intelligent automatic pick-up unit of quartz oscillator instrument of the present invention.
Fig. 2 be Fig. 1 pick-up unit passage switching and controller and data acquisition equipment concern synoptic diagram.
Fig. 3 is the switching of Fig. 1 pick-up unit and the PLC connection layout of controller.
Fig. 4 is the frequency difference multiplication method synoptic diagram of automatic detection device of the present invention.
Fig. 5 be automatic detection device of the present invention read the standard law synoptic diagram.
Fig. 6 is the seized method synoptic diagram of reading of automatic detection device of the present invention.
Fig. 7 is the start Characteristics Detection process flow diagram of automatic detection device of the present invention.
Fig. 8 is the day frequency jitter testing process figure of automatic detection device of the present invention.
Fig. 9 is the day ageing rate testing process figure of automatic detection device of the present invention.
Figure 10 is the 1S frequency stability testing process figure of automatic detection device of the present invention.
Figure 11 is the frequency repdocutbility testing process figure of automatic detection device of the present invention.
Figure 12 is the frequency accuracy testing process figure of automatic detection device of the present invention.
Figure 13 is certain passage control synoptic diagram of automatic detection device of the present invention.
Figure 14 is the high accuracy number recognition technology synoptic diagram of automatic detection device of the present invention.
Embodiment
As depicted in figs. 1 and 2, the intelligent automatic pick-up unit of a kind of quartz oscillator instrument, it comprises that passage switches and controller 1, frequency marking comparer/counter 2, monitor 3, data acquisition equipment 4, digit recognition and Control Software 5, intelligent parameter control unit 6, back-end data process software 7 and database management language 8; In Fig. 1; Passage switching and controller 1 are divided into two parts indicate, a part is that passage switches 1-1, and another part is controller 1-2; Data acquisition equipment 4 is provided with the camera that is used to monitor seized instrument; Behind the seized instrument A panel of the camera collection image, export frequency marking comparer/counter 2 to by the sense channel B that switches with controller 1 control, seized instrument A and standard meter C that frequency marking comparer/counter 2 will collect compare; Accomplish frequency marking comparison or frequency counting; And monitor in real time through computer display screens by monitor 3, data acquisition equipment 4 is accomplished seized instrument A panel IMAQ work, and the image by digit recognition and 5 pairs of collections of Control Software carries out Digital Image Processing again; And carry out image segmentation; Through artificial intelligence technology the digital picture of cutting apart is carried out high precision identification then, obtain the video data of digital instrument, and be saved in the database; And then these data are carried out data processing according to vertification regulation, finally form detection record and examining report.
See shown in Figure 2ly, four cameras can be installed at most on the said data acquisition equipment 4, each camera is used to monitor four seized instrument A; Therefore, native system is supported 16 seized instrument A0-A15 (equipment) online detection simultaneously at most, in testing process; Per four seized instrument A are one group; By sense channel B output of correspondence, that is: B0-B3, and control respectively and detect by switching with controller 1.
As shown in Figure 3, said passage switches with controller 1 and is provided with control module core PLC, and PLC is connected with computer PC (host computer) and by computer PC (host computer) instruction control, with the execution corresponding actions; The concrete connection is that PLC joins through USB/RS422 converting interface and computing machine, then is provided with relay J between each instrument A to be detected (equipment) and the PLC; Use Industry Control PLC can guarantee the accurate of detection time, reduce the electromagnetic interference (EMI) of the seized equipment of outer bound pair, guarantee the reliable of pick-up unit long-time steady operation and testing result.And, can carry out accurate opertaing device according to the parameter that is provided with in the computing machine, in testing process, can adjust correlation parameter to arrive the control corresponding requirement according to different needs.
Said frequency marking comparer/counter 2 also is connected with standard meter C; Frequency marking comparer/counter 2 is compared seized instrument A and standard meter C; According to the different detection methods that whether frequency marking output arranged and select frequency difference multiplication method, read standard law and read seized method, accomplish frequency marking comparison or frequency computation part through selector button.
See shown in Figure 4ly, be the frequency difference multiplication method synoptic diagram, during frequency marking output, can read this signal input frequency difference multiplier 11 reading of frequency difference multiplier by system according to certain intervals (preestablishing), and accomplish and detect this moment outside seized instrument A and standard scale all have.
See shown in Figure 5ly, for reading the standard law synoptic diagram, frequency marking output outside standard meter has C, and seized instrument A is not when having outer frequency marking output is adopted and is read standard law and detect, and specifically principle is seen shown in the figure.
See shown in Figure 6ly, for reading seized method synoptic diagram, frequency marking output outside seized instrument A has, and standard meter C is not when having outer frequency marking output is adopted and is read seized method and detect, and specifically principle is seen shown in the figure.
As shown in Figure 7, be the start Characteristics Detection process flow diagram of automatic detection device of the present invention.
As shown in Figure 8, be the day frequency jitter testing process figure of automatic detection device of the present invention.
As shown in Figure 9, be the day ageing rate testing process figure of automatic detection device of the present invention.
Like Figure 10 is the 1S frequency stability testing process figure of automatic detection device of the present invention.
Shown in figure 11, be the frequency repdocutbility testing process figure of automatic detection device of the present invention.
Shown in figure 12, be the frequency accuracy testing process figure of automatic detection device of the present invention.
Above-mentioned monitor 3 is connected between frequency marking comparer/counter 2 and the data acquisition equipment 4; So that through the real-time monitoring of computer display screens to testing process and the intermediate result of each sense channel B, each measuring instrument A; Make the testing staff can understand the detection progress and the effect of each measuring instrument in real time, conveniently corresponding adjustment is made in detection; And intelligent parameter control unit 6 to be users require and detect the predefined running parameter of rules according to detecting, can accomplish the robotization testing process of each sense channel B, each instrument automatically according to this parameter.
Said back-end data process software 7 is accomplished the post-production and the data storage operations of data according to detecting journey.
And user inquiring and printing desired for ease can also be connected with record queries and certificate PRN device 9 at said database management language 8.
In sum, this pick-up unit key for design technology as follows.
(1) instrument to be detected (equipment) adopts multi-channel intelligent control to gather automatically with multi-channel data.
The checkout equipment of the quartz oscillator of existing digital instrument, its every checkout equipment can only detect an equipment to be detected, causes usage ratio of equipment and detection efficiency very low, is difficult to satisfy the needs that detect use; And the checkout equipment of this patent; In order to improve the detection efficiency of instrument, lower and detect cost, this device can detect multiple devices simultaneously; 16 instrument of multipotency online detection simultaneously; Because each equipment testing project and detected parameters difference maybe be very big, this patent is divided into four groups with seized 16 instrument (equipment), and every group constitutes a sense channel; And with the group is that unit is provided with intelligent detected parameters, and these detected parameters can realize that the difference of instrument detect to require (on the same group or identical with the seized instrument detected parameters of passage); Through being detection and the control that unit has realized requiring according to different detection the different instruments of completion with the passage, its control principle synoptic diagram is illustrated in fig. 13 shown below, and is certain passage control synoptic diagram of automatic detection device of the present invention.
The detected parameters of every sense channel comprises: start shooting preheating time on time, stop time etc. detection time at interval; To accomplish start Characteristics Detection, day frequency jitter, day ageing rate respectively; The 1S frequency stability, frequency repdocutbility, the detection of projects such as frequency accuracy.
Wherein, the interval of adjusting detection time can change the acquisition interval time of detecting data according to different requirement, and the shortest being not less than 1 second is the highest unrestricted; Start is the start preheating time that is used to the equipment of adjusting preheating time, get into steady-working state with assurance equipment after, carry out the detection of projects such as a day frequency jitter, 1S frequency stability, day ageing rate.On time and unused time are start and the stop times that need set when detecting the frequency repdocutbility.
(2) high accuracy number recognition technology.
The Core Feature of this device of high accuracy number identification, it is related to whole Device Testing result's precision and reliability; For obtaining the testing result of high precision high reliability; Device must adopt reliable and stable digit recognition algorithm, and algorithm has high robustness, and system is automatically according to the height and the width that are identified character; The adjustment identification parameter, these parameters will be used for the control character feature extraction.In the process of digit recognition, system need provide outside the high-quality recognizer, also must assess the reliability of identification automatically, has adaptive ability, sees shown in Figure 14ly, is the high accuracy number recognition technology synoptic diagram of automatic detection device of the present invention.
(3) realization of vertification regulation technology.
The present invention detects rules according to national quartz oscillator instrument and accomplishes; The rules of following have: " quartz oscillator in People's Republic of China's measurement verification regulations----JJG180-2002 electronic measuring instrument ", " People's Republic of China's measurement verification regulations----JJG181-2005 quartz crystal frequency standard " etc.Detect in the rules at quartz oscillator, comprised 6 different test items of distinct device operational phase, it is many that the process of these test items detects data point, and process is complicated, and the testing process duration is very long, and data sampling has nothing in common with each other at interval; The applicant incorporates the coherent detection rules in the intelligent automatic pick-up unit of quartz oscillator through software approach, accomplishes each by punctual collection of the data of test examination instrument and the control of open and close machine through computing machine.
The key point of this patent just is: utilized artificial intellectual technology of computing machine and PLC control technology etc., through high-precision digit recognition technology, realized the intelligent automatic detection of hyperchannel quartz oscillator instrument.
Therefore, the protection of this patent point has two places: the ultimate principle and the method for the intelligent automatic detection of (1) protection hyperchannel quartz oscillator instrument of the present invention; (2) the intelligent workflow of the intelligent automatic detection of protection hyperchannel quartz oscillator instrument of the present invention.
Claims (8)
1. intelligent automatic pick-up unit of quartz oscillator instrument; It is characterized in that; It comprises that passage switches and controller (1), frequency marking comparer/counter (2), monitor (3), data acquisition equipment (4), digit recognition and Control Software (5), intelligent parameter control unit (6), back-end data process software (7) and database management language (8), and data acquisition equipment (4) is provided with the camera that is used to monitor seized instrument, behind the seized instrument of camera collection (A) the panel image; Sense channel (B) by switching with controller (1) control exports frequency marking comparer/counter (2) to; Seized instrument A that frequency marking comparer/counter (2) will collect and standard meter (C) are compared, and accomplish frequency marking comparison or frequency counting, and are monitored in real time through computer display screens by monitor (3); Data acquisition equipment (4) is accomplished seized instrument (A) panel IMAQ is worked; By digit recognition and Control Software (5) image of gathering is carried out Digital Image Processing again, and carry out image segmentation, through artificial intelligence technology the digital picture of cutting apart is carried out high precision identification then; Obtain the video data of digital instrument; And be saved in the database, and then these data are carried out data processing according to vertification regulation, finally form detection record and examining report.
2. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1; It is characterized in that; Four cameras are installed on the said data acquisition equipment (4), and each camera is used to monitor four seized instrument (A), and per four seized instrument are one group; By a sense channel (B) output of correspondence, and by passage switching and controller (1) control.
3. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1; It is characterized in that; Said switching and controller (1) are provided with control module core PLC, and PLC is connected with computing machine and is controlled by computer instruction, to carry out corresponding actions.
4. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1; It is characterized in that; Said frequency marking comparer/counter (2) also is connected with standard meter (C); Frequency marking comparer/counter (2) is compared seized instrument (A) and standard meter (C), determines whether frequency marking output and the different detection methods of selecting frequency difference multiplication method, reading standard law and read seized method through selector button, accomplishes frequency marking comparison or frequency counting.
5. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1; It is characterized in that; Said monitor (3) is connected between frequency marking comparer/counter (2) and the data acquisition equipment (4); So that to the testing process of each sense channel (B), each measuring instrument (A) and the real-time monitoring of intermediate result, make the testing staff can understand the detection progress and the effect of each measuring instrument in real time through computer display screens, conveniently corresponding adjustment made in detection.
6. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1; It is characterized in that; Said intelligent parameter control unit (6) is that the user requires and the predefined running parameter of detection rules according to detecting, and can accomplish the robotization testing process of each sense channel (B), each instrument automatically according to this parameter.
7. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1, it is characterized in that said back-end data is handled and conservator (7) is accomplished the post-production and the data storage operations of data according to detecting journey.
8. according to the intelligent automatic pick-up unit of the said quartz oscillator instrument of claim 1, it is characterized in that said database management language (8) also is connected with record queries and certificate PRN device (9).
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| CN2011100763358A CN102721878A (en) | 2011-03-29 | 2011-03-29 | Intelligentized automatic checkout device of quartz crystal oscillator instrument |
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Cited By (5)
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| CN104821790A (en) * | 2014-01-31 | 2015-08-05 | 瑞士优北罗股份有限公司 | Reliable crystal oscillator start-up |
| CN105488506A (en) * | 2016-01-11 | 2016-04-13 | 无锡市计量检定测试中心 | Automatic verification system for pointer meters and simple digital meters |
| CN109165625A (en) * | 2018-09-11 | 2019-01-08 | 国网山东省电力公司莱芜供电公司 | A kind of test report intelligent generation method based on image recognition |
| CN110188742A (en) * | 2018-02-23 | 2019-08-30 | 中国石油天然气股份有限公司 | Datamation acquisition method and system based on image recognition |
| CN113125880A (en) * | 2021-03-05 | 2021-07-16 | 深圳市福浪电子有限公司 | Performance detector for crystal oscillator |
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| CN113125880A (en) * | 2021-03-05 | 2021-07-16 | 深圳市福浪电子有限公司 | Performance detector for crystal oscillator |
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Application publication date: 20121010 |