CN204631239U - Electricity three shows the measuring system of automatic Verification - Google Patents
Electricity three shows the measuring system of automatic Verification Download PDFInfo
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- CN204631239U CN204631239U CN201520223738.4U CN201520223738U CN204631239U CN 204631239 U CN204631239 U CN 204631239U CN 201520223738 U CN201520223738 U CN 201520223738U CN 204631239 U CN204631239 U CN 204631239U
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Abstract
The utility model relates to instrument calibration field, and specifically disclose the measuring system that a kind of electricity three shows automatic Verification, it comprises main control computer, the measuring system of writing to each other with main control computer respectively and auto Image Collection system; Include in described measuring system and the tested signal source showing to be electrically connected, and the standard scale be connected with signal source; Include camera in auto Image Collection system, described signal source, standard scale and camera are equipped with communication interface, and signal source, standard scale and camera communicate to connect respectively by the communication interface on it and main control computer.The full-automatic calibrating that electricity three is shown can be realized, greatly improve calibrating efficiency and reliability.
Description
Technical field
The utility model relates to instrument calibration field, particularly relates to the measuring system that a kind of electricity three is shown in the process of automatic Verification.
Background technology
In actual applications widely, not only quantity is large, and process is numerous and diverse in the calibrating that electricity three is shown (reometer, voltage table, power meter).Because electricity three table mostly is pointer instrument, and the calibration method of pointer instrument normally estimates the difference between pointer scale reading and standard input signal by testing person, analyze and calibrate pointer instrument, be specially: read tested table data by human eye, and manually adjust signal source according to the information that testing person reads to make tested table point to examining and determine point, manual record and calculate verification result afterwards.The subject matter that this traditional calibration method exists is that the precision of human eye range estimation readout is low, poor reliability, poor repeatability, and artificial subjective impact is larger.Meanwhile, the whole calculating of calibrating datumization of voltage, electric current, power meter is more loaded down with trivial details, and testing person spends in and uses eye on pointer and data processing the most of the time in the process of calibrating, and therefore labour intensity is large, and calibrating efficiency is lower.
Utility model content
The purpose of this utility model is, proposes the measuring system that a kind of electricity three shows automatic Verification, and it can realize the full-automatic calibrating shown electricity three, greatly improves calibrating efficiency and reliability.
For achieving the above object, the utility model provides the measuring system that a kind of electricity three shows automatic Verification, it comprises: the standard scale of writing to each other with main control computer respectively and signal source, described standard scale is program-controlled alternating current-direct current standard scale, described signal source is connected with a tested table, this signal source includes direct-flow voltage regulation source, DC constant current power supply and AC audio programmable power supply, and described direct-flow voltage regulation source, DC constant current power supply and AC audio programmable power supply are all connected with tested table.
Concrete, described main control computer also communication link is connected to a camera.
Especially, described alternating current-direct current standard scale has additional an automatic range switching device, and described alternating current-direct current standard scale is electrically connected with each signal source respectively by this automatic range switching device.
Further, described automatic range switching device rear end is provided with voltage output end and current output terminal, and tested table is electrically connected by this voltage output end and current output terminal and automatic range switching device.
In the utility model, described signal source, standard scale and camera are equipped with communication interface, and signal source, standard scale and camera communicate to connect respectively by the communication interface on it and main control computer.
Electricity three of the present utility model shows the measuring system of automatic Verification, the full-automatic calibrating that electricity three is shown can be realized, its uncertainty is less and can calculate relative to eye recognition, so greatly reduce the extraneous error introduced in verification process, greatly improve calibrating efficiency and reliability, the pointer instrument automation calibrating device development of other kinds is also had to the meaning of reference simultaneously, the automatic calibration of other instrument beyond to electricity three table can also be further expanded to, there is well research expansion and be worth.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the connection diagram of measuring system when embody rule that in the utility model, electricity three shows automatic Verification;
Fig. 2 is the module diagram that in the utility model, electricity three shows a kind of specific embodiment of measuring system of automatic Verification;
Fig. 3 is the theory diagram that the measuring system utilizing described electricity three to show automatic Verification in the utility model realizes automatic Verification.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, 2, the utility model provides a kind of electricity three to show the measuring system of automatic Verification, it comprises: the standard scale 20 of writing to each other with main control computer 10 respectively and signal source 30, described standard scale 20 is program-controlled alternating current-direct current standard scale 20, described signal source 30 is connected with a tested table 40, this signal source 30 includes direct-flow voltage regulation source 32, DC constant current power supply 34 and AC audio programmable power supply 36, and described direct-flow voltage regulation source 32, DC constant current power supply 34 and AC audio programmable power supply 36 are all connected with tested table 40.Be preset with auto-control software 12 and operational software 14 in described main control computer 10, this main control computer 10 also communication link is connected to a camera 16.The utility model gathers picture signal by camera 16, quantized value is passed to main control computer 10 by signal after treatment, main control computer 10 receives the quantized value that each hardware link gathers and the control realized hardware system, and quantized value is calculated, process and preserves, thus the full-automatic calibrating realized electricity three table, greatly improve calibrating efficiency and reliability.
The quantized value that the auto-control software 12 preset in described main control computer 10 and operational software 14 gather for receiving camera 16, realizes the control to hardware, and calculates quantized value, processes and preserve.As a kind of preferred embodiment of the present utility model, the software in described main control computer 10 can adopt the C++Builder6 instrument of Borland company to develop, and final purpose makes software have practicality, reliability, ease for use and can safeguard extendability.C++Builder6 is the product released by Borland company, and it adopts C Plus Plus as development language, is object oriented language.Its core comes from Delphi, and VCL and the Delphi that it uses is duplicate.Because it belongs to visual fast Development instrument, so avoid the difficulty of C Plus Plus exploitation Windows program, energy is more concentrated on as the aspect such as data processing, program reliability by programmer, so select this developing instrument to carry out the exploitation of software in main control computer 10.
In the utility model, described signal source 30, standard scale 20 and camera 16 are equipped with communication interface, and signal source 30, standard scale 20 and camera 16 communicate to connect respectively by the communication interface on it and main control computer 10.Preferably, described camera 16 can adopt MV-500UC series high resolution industrial digital camera.This camera 16 is connected with main control computer 10, auto-control software 12 is sent to realize exchanges data the data collected by operational software 14, tested table 40 is connected with other hardware units by automatic range switching device 22, and gathers the reading information of tested table 40 by camera 16.For signal source 30, the utility model, except increasing communication interface, also needs the fineness adjustment improving signal source, makes system software can meet the needs of automatic calibration to the control of signal source 30.Especially, alternating current-direct current standard scale 20 of the present utility model has additional an automatic range switching device 22, and described alternating current-direct current standard scale 20 is electrically connected with each signal source respectively by this automatic range switching device 22.Moreover described automatic range switching device 22 rear end is provided with voltage output end 24 and current output terminal 26, tested table 40 is electrically connected with automatic range switching device 22 by this voltage output end 24 and current output terminal 26.The utility model by increasing automatic range switching device 22 for standard scale 20, not only can realize Automatic Control, ensure that its accuracy is not affected simultaneously.Concrete, realize automatic measuring limit by relay after described automatic range switching device 22 identifies the amount limit information that main control computer 10 sends and switch, like this can not affect the precision of Main Regulator.
Standard scale 20 in the utility model, automatic range switching device 22 and each signal source 30 all carry out message exchange, to realize the collection of voltage and current signal and the control to signal source by RS232 communication interface according to the communication protocol formulated and main control computer 10.Concrete, unidirectional control can be carried out for signal source 30, transmit control signal and control its gear with information such as, setting value and signal liftings.Carry out double-direction control to standard scale 20, it selects measurement function, switching range etc. to send Data Control, the parameters information that reception standard scale 20 returns and measurement parameter information.Unidirectional control is carried out for automatic range switching device 22, sends range handover information.Software is by the meter reading information of the tested table 40 of computer utility layer unidirectional reception camera 16 transmission simultaneously, controls, so just can form closed-loop system as shown in Figure 3 according to the information received to signal source 30.
The measuring system utilizing electricity three described in the utility model to show automatic Verification realizes the method for automatic Verification, and it comprises the following steps:
Step a, main control computer 10 starts automatic inspection line journey, and read calibrating database information, dot information examined and determine by the tested table 40 according to reading in database, switching signal source 30 range and automatic range switching device 22 range.
Step b, detects thread by suspending near RS232 communication interface respectively coarse adjustment signal source 30 to tested table 40 calibrating point.
Step c, reads the pointer position information of the tested table 40 that camera 16 returns at set intervals, and identifies that according to camera 16 the tested table 40 of pointer information accurate adjustment calculated is to examining and determine point, makes pointer accurately point to accredited some scale place.As a kind of selectivity embodiment of the present utility model, can by starting timer, every 0.5s reads the pointer position information that camera 16 returns.
Steps d, read standard scale 20 reading, the current reading of record standard table 20, calculates control information simultaneously, is recorded into database, recovers to detect thread and reads next calibrating dot information.
Step e, repeats step a to the operation of steps d until complete the calibrating of all calibratings point.
Above-mentioned calibration method does not all need people to participate in, due to the extraction of pointer dashboard home position data, it is image recognition program module meat and potatoes, only has home position accurate positioning, the precision of subsequent treatment can reach requirement, so operational software 14 first accurately calculates the home position corresponding to pointer gauge circular arc, therefore in the utility model, the image of the tested table 40 that described camera 16 collects need carry out pre-service, accurately calculates the home position corresponding to tested table 40 pointer circular arc by operational software 14.
In sum, electricity three of the present utility model is shown the measuring system of automatic Verification and is utilized it to realize the method for automatic Verification, its operand is reasonable, fast response time, can calculate accurately by analyzing relative to its uncertainty of eye recognition, reduce introducing error, meet the feature that electricity three shows automatic Verification.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. an electricity three shows the measuring system of automatic Verification, it is characterized in that, comprise the standard scale and signal source of writing to each other with main control computer respectively, described standard scale is program-controlled alternating current-direct current standard scale, described signal source is connected with a tested table, this signal source includes direct-flow voltage regulation source, DC constant current power supply and AC audio programmable power supply, and described direct-flow voltage regulation source, DC constant current power supply and AC audio programmable power supply are all connected with tested table;
Described main control computer also communication link is connected to a camera;
Described alternating current-direct current standard scale has additional an automatic range switching device, and described alternating current-direct current standard scale is electrically connected with each signal source respectively by this automatic range switching device.
2. electricity three as claimed in claim 1 shows the measuring system of automatic Verification, it is characterized in that, described automatic range switching device rear end is provided with voltage output end and current output terminal, and tested table is electrically connected by this voltage output end and current output terminal and automatic range switching device.
3. electricity three as claimed in claim 1 shows the measuring system of automatic Verification, it is characterized in that, described signal source, standard scale and camera are equipped with communication interface, and signal source, standard scale and camera communicate to connect respectively by the communication interface on it and main control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223738.4U CN204631239U (en) | 2015-04-14 | 2015-04-14 | Electricity three shows the measuring system of automatic Verification |
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| CN201520223738.4U CN204631239U (en) | 2015-04-14 | 2015-04-14 | Electricity three shows the measuring system of automatic Verification |
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| CN204631239U true CN204631239U (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196476A (en) * | 2017-12-08 | 2018-06-22 | 上海精密计量测试研究所 | Handheld multimeter test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196476A (en) * | 2017-12-08 | 2018-06-22 | 上海精密计量测试研究所 | Handheld multimeter test method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 |