CN103064050A - Multi-instrument correcting device and correcting method - Google Patents
Multi-instrument correcting device and correcting method Download PDFInfo
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- CN103064050A CN103064050A CN2013100153676A CN201310015367A CN103064050A CN 103064050 A CN103064050 A CN 103064050A CN 2013100153676 A CN2013100153676 A CN 2013100153676A CN 201310015367 A CN201310015367 A CN 201310015367A CN 103064050 A CN103064050 A CN 103064050A
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Abstract
The invention discloses a multi-instrument correcting device and a correcting method. The correcting device comprises a host, a standard source, a standard scale and a test board. The test board comprises a plurality of instrument desks. Each instrument desk comprises a data connector and a test connector. The data connector is connected with the host through a data line. The test connector is connected with the standard source and the standard scale through a test line. The standard source and the standard scale are connected with the host through data lines. Because one standard source and one standard line simultaneously correspond to a plurality of instruments to be corrected, costs of hardware like the standard source and the standard scale are reduced; because the correcting process is controlled by a computer, and a parallel communication mode is adopted between the computer and the plurality of instruments to be corrected, response time is reduced, correcting time is greatly reduced and factory detection time of products is reduced.
Description
Technical field
The present invention relates to electric instrument and produce the test correction in later stage.
Background technology
Electric instrument comprises voltage table, reometer, electric energy meter etc.Electric instrument has just been produced rear or naked table, and precision is relatively poor, needs its test is proofreaied and correct before it formally dispatches from the factory listing, makes it meet application requirements.The automatic test degree of power equipment manufacturer instrument is lower at present, a lot of Meter Tests still rely on the manual testing, the manual testing needs a large amount of personnel, everyone needs a standard source, standard source is a relatively more expensive equipment simultaneously, this has increased the cost of company greatly, the manual testing also can only test an instrument, but many instrument concurrent testings simultaneously, proofread and correct the result and all will rely on hand computation could obtain, so the test duration needs for a long time, significant wastage the time, a large amount of information also needs by manual record, also is easy to make mistakes.
Summary of the invention
Problem to be solved by this invention is
1, improves electric instrument production efficiency;
2, improve the electric instrument quality of production.
For addressing the above problem, the scheme that the present invention adopts is as follows:
A kind of many instrument calibrations device comprises: main frame, standard source, standard scale, test board.Test board comprises that a plurality of instrument desks, instrument desk comprise data connector lug and test connector lug, and the data connector lug links to each other with main frame by data line, and the test connector lug links to each other with standard source, standard scale by p-wire.Standard source links to each other with main frame by data line with standard scale.
A kind of many instrument calibrations method comprises above-mentioned many instrument calibrations device and by the school instrument, wherein main frame comprises automatic testing equipment.Its method comprises the steps:
S100, automatic testing equipment connect by school instrument, standard meter, standard source;
S200, automatic testing equipment are to the output source sending controling instruction;
S300, output source are exported according to the steering order adjustment;
S400, automatic testing equipment obtain reading;
S500, automatic testing equipment calculation correction amount;
S600, automatic testing equipment are to being issued correction instruction by the school instrument.
Technique effect of the present invention comprises:
1, bearing calibration of the present invention, the manual intervention amount is few, thereby reduces the labor wage cost;
2, by computer controlled automatic, error rate greatly reduces, thereby improves the quality of products;
3, correspondence is a plurality of by the school instrument simultaneously for standard source, a standard scale, reduces the hardware costs such as standard source and standard scale;
4, trimming process is by computer control, and a plurality ofly adopted parallel mode by the communication between the instrument of school, reduced response turnaround time, greatly reduced correction time, reduces product export detection time.
5, proofreading and correct test process can preserve, convenient reviewing later.
Description of drawings
Fig. 1 is many instrument calibrations of the present invention apparatus structure schematic diagram.
Fig. 2 is many instrument calibrations of the present invention device voltage wiring diagram.
Fig. 3 is many instrument calibrations of the present invention device electric current wiring diagram.
Fig. 4 is that many instrument calibrations of the present invention device is opened into wiring diagram.
Fig. 5 is that many instrument calibrations of the present invention device is left wiring diagram.
Fig. 6 is that the complete analog quantity of the present invention is proofreaied and correct test flow chart.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail.
As shown in Figure 1, a kind of many instrument calibrations device comprises: main frame 1, standard source 2, standard scale 3, test board 4.Test board 4 comprises that a plurality of instrument desks 41, instrument desk 41 comprise data connector lug 411 and test connector lug 412, and data connector lug 411 links to each other with main frame 1 by data line, and test connector lug 412 links to each other with standard source 2, standard scale 3 by p-wire.Standard source 2 links to each other with main frame 1 by data line with standard scale 3.Wherein main frame 1 includes automatic testing equipment and communication card, and communication card is used for and by the communication between school instrument, standard scale, the standard source.Instrument desk 41 is used for placing by the school instrument, can is voltage table, reometer, power meter, electric energy meter, switch scale or multifunctional meter etc. by the school instrument.After being put on the instrument desk 41 by the school instrument, data connector lug 411 and the test connector lug 412 that can directly plug on the instrument desk 41 connect with standard source, standard scale and main frame, namely by the data connector lug of school Instrument connection instrument desk and test connector lug.Above-mentioned data line can be ethernet line, also can be the RS232 Serial Port Line, perhaps the RS485 bus.Above-mentioned p-wire is connection standard table, standard source, by the power lead between the instrument of school.P-wire is picked out by standard source, finally with the mode connection standard table of in parallel or series connection with by the school instrument.With reference to equipment, can outwards export the size of known current/voltage when standard source is measurement, the voltage and current size of output can be by the control of main frame.Standard scale is known, and process is confirmed, the standard meter with very high precision.The automatic testing equipment of main frame 1 can read standard scale by data line and by the reading of school instrument, also can export specified current/voltage in the control criterion source, can also be to being adjusted correction by the school instrument.
The below is just described respectively by the wiring in the voltage of school instrument, electric current, electric energy, the correction test opening, leave.
1, voltage correction wiring
Above-mentioned p-wire comprises pressure-wire, and the test connector lug of above-mentioned instrument desk comprises the voltage connector lug, is comprised voltage terminal by school instrument and standard meter.After the voltage terminal parallel connection of school instrument and standard meter, the access standard source.If be three-phase meter by the school instrument, three-phase is respectively V1, V2, V3 adds zero line N, and the voltage connector lug of its instrument desk comprises V1, V2, V3 and N.The voltage connector lug V1 of each instrument desk, V2, V3 and N are in parallel, and and V1, V2, V3 and the N parallel connection of standard meter after, V1, V2, V3 and N that access is drawn from standard source, as shown in Figure 2.
2, current correction wiring
Above-mentioned p-wire comprises the electric current line, and the test connector lug of above-mentioned instrument desk comprises the electric current connector lug, is comprised current terminal by school instrument and standard meter.After the series connection of the current terminal of school instrument and standard meter, the access standard source.As shown in Figure 3, each is met a rear sub-Iout of current output terminal by the school instrument by the sub-Iin of the current input terminal of school instrument, the sub-Iout of first current output terminal by the school instrument meets the electric current input Iin of standard source, last is met the sub-Iout of current output terminal of standard scale by the sub-Iin of the current input terminal of school instrument, the sub-Iin of the current input terminal of standard scale meets the electric current output Iout of standard source.Each is formed series relationship by school instrument and standard scale.
3, electric energy is proofreaied and correct wiring
Electric energy is proofreaied and correct the input that needs voltage and current, and voltage wiring reference voltage is proofreaied and correct wiring, and electric current wiring reference current is proofreaied and correct wiring.
4, intake is proofreaied and correct wiring
Above-mentioned p-wire comprises out lambda line, and the test connector lug of above-mentioned instrument desk comprises to be opened into connector lug, is comprised by school instrument and standard meter and opening into terminal.Accessed standard source after the instrument parallel connection of school.If being comprised opening into terminal for three by the school instrument is respectively DI1, DI2, DI3, each instrument open the terminal series connection after, lead-out terminal DO1, DO2, the DO3 of access standard source.Its intake is proofreaied and correct wiring as shown in Figure 4.Above-mentioned standard source also can replace with standard scale, i.e. the terminal access of leaving with standard scale is corrected opening into terminal of instrument.
5, the amount of leaving is proofreaied and correct wiring
Above-mentioned p-wire comprises leaves line, and the test connector lug of above-mentioned instrument desk comprises leaves connector lug, is comprised by school instrument and standard meter and leaves terminal.If comprised that by the school instrument three are left terminal, be respectively DO1, DO2, DO3, each terminal of leaving by the school instrument accesses respectively opening into terminal of standard source, supposes to have n by the school instrument, and standard source need to have 3 * n to open into terminal.Its amount of leaving is proofreaied and correct wiring as shown in Figure 5.Above-mentioned standard source also can replace with standard scale, namely connects by the terminal of leaving of school instrument with opening into terminal of standard scale.
Above-mentioned wiring by with instrument desk on the data connector lug and be connected connector lug realization and be connected.When proofreading and correct test, only need and will be placed on the instrument desk by the school instrument, various p-wire joints and data cable connector access are got final product by the school instrument, simple to operation.
Each is put into after the instrument desk wiring finishes by the school instrument, the automatic testing equipment side of main frame needs configuration data, configuration data comprises and each mailing address of being communicated by letter by the school instrument, and each is by the school meter information, such as being voltage table or reometer or multifunctional meter by the range of school instrument, by the school instrument, be three-phase voltage meter or two-phase voltage table etc. by the school instrument.After configuration was finished, the automatic testing equipment of main frame needed and each is established a communications link by school instrument, standard meter, standard source.The automatic testing equipment of main frame and set up by school instrument communication connection after, need to be issued some parameters by school instrument setting to each.After being finished by the parameter setting of school instrument, begin to start the correction test of robotization.
The method that adopts above-mentioned many instrument calibrations device to carry out many instrument calibrations comprises the steps:
S100, automatic testing equipment connect by school instrument, standard meter, standard source;
S200, automatic testing equipment are to the output source sending controling instruction;
S300, output source are exported according to the steering order adjustment;
S400, automatic testing equipment obtain reading;
S500, automatic testing equipment calculation correction amount;
S600, automatic testing equipment judge that correcting value is whether in the scope that error allows, if not in allowed limits, then to being issued correction instruction by the school instrument.
In the above-mentioned steps, output source, reading are determined according to the difference of proofread elephant:
If proofread voltage, electric current, power, phase place, electric energy, the intake of liking of a, then output source is standard source; Among the step S200, automatic testing equipment is to the standard source sending controling instruction; Among the step S300, standard source is according to specified voltage or curtage electric current or the intake of steering order output.
If b is proofread as if the amount of leaving, then output source is by the school instrument; Among the step S200, automatic testing equipment is to by school instrument sending controling instruction; Among the step S300, exported the specified amount of leaving by the school instrument according to steering order;
If the proofread analog quantitys such as voltage, electric current, power, phase place, electric energy that like of c, then among the step S400, automatic testing equipment needs respectively from being obtained meter reading school instrument and the standard scale; Among the step S500, according to standard scale with by the comparing calculation correcting value of school instrument;
If d is proofread as if intake, then among the step S400, automatic testing equipment need to be from being obtained reading by the school instrument; Step S500 and S600 omit, directly according to being judged by the school meter reading whether it is the defective instrument;
If e is proofread as if the amount of leaving, and to connect what left terminal by the school instrument be standard source, and then among the step S400, automatic testing equipment need to obtain reading from standard source; Step S500 and S600 omit, and directly judge according to reading whether it is the defective instrument.
If f is proofread as if the amount of leaving, and to connect what left terminal by the school instrument be standard scale, and then among the step S400, automatic testing equipment need to obtain reading from standard scale; Step S500 and S600 omit, and directly judge according to reading whether it is the defective instrument.
In actual applications, when automatic testing equipment was proofreaied and correct analog quantity, above-mentioned trimming process was generally carried out under the full scale state, if in the number of times scope that limits, proofreaied and correct test and can not pass through, and then this instrument is the defective instrument.Whether whether test by being to decide in the scope that error allows with its reading.Such as, when test 380V voltage, the standard scale reading is 379.9V, and certain is 383V by the school meter reading, and both differ 3.1V by reading, and the error that allows is 0.5V, then this instrument calibration test can not be passed through, if certain is 380.2V by the school meter reading, both readings differ 0.3V in the error range that allows, and then this instrument calibration test is passed through.After the full scale test is finished, need to select several intermediate points to carry out sample testing.Take by the school voltage table as example, be 380V by school voltage table full scale.The middle test voltage that automatic testing equipment is selected can be: 300V, 220V, 180V, 110V, 60V.At first proofread and correct test under the 380V full scale, pass through if proofread and correct test, then select each middle test voltage to test, if test is all passed through, then the instrument calibration test is finished, if Meter Test does not pass through, then this instrument is the defective instrument.During middle test voltage test, no longer proofread and correct.Said process can be proofreaied and correct test flow chart referring to complete analog quantity shown in Figure 6.
For multifunction instrument, the present invention can also test correction to a plurality of proofread elephant of multifunction instrument simultaneously simultaneously, and its complete correcting process step is as follows:
1, automatic testing equipment configuration;
2, the automatic testing equipment connection is corrected instrument, standard scale, standard source;
3, automatic testing equipment is to being issued parameter by the school instrument;
4, by standard source validation criteria table;
5, the current/voltage full scale is proofreaied and correct test;
6, current/voltage sample testing;
7, power, phase place, electric energy are proofreaied and correct test;
8, intake detects;
9, the amount of leaving detects;
10, stopping criterion source output
11, the zero clearing of the electric energy meter number of degrees resets;
12, proofreading and correct the test process data preserves;
13, printing reports bar code and conformity certification.
By said process as can be known, above-mentioned many instrument calibrations device also comprises printer, and wherein main frame connects printer.
Above-mentioned method also comprises proofreaies and correct the step that the test process data are preserved.
Claims (6)
1. instrument calibration device more than a kind comprises: main frame, standard source, standard scale, test board; Test board comprises that a plurality of instrument desks, instrument desk comprise data connector lug and test connector lug, and the data connector lug links to each other with main frame by data line, and the test connector lug links to each other with standard source, standard scale by p-wire; Standard source links to each other with main frame by data line with standard scale.
2. many instrument calibrations device as claimed in claim 1 is characterized in that, also comprises printer; Described main frame connects printer.
3. many instrument calibrations device as claimed in claim 1 is characterized in that, also comprises by the school instrument; By the described data connector lug of school Instrument connection and test connector lug.
4. many instrument calibrations device as claimed in claim 1 is characterized in that, described is voltage table or reometer or power meter or electric energy meter or switch scale or multifunctional meter by the school instrument.
5. instrument calibration method more than a kind is characterized in that, comprises many instrument calibrations device as claimed in claim 1 and by the school instrument, wherein main frame comprises automatic testing equipment; Its method comprises the steps:
S100, automatic testing equipment connect by school instrument, standard meter, standard source;
S200, automatic testing equipment are to the output source sending controling instruction;
S300, output source are exported according to the steering order adjustment;
S400, automatic testing equipment obtain reading;
S500, automatic testing equipment calculation correction amount;
S600, automatic testing equipment are to being issued correction instruction by the school instrument.
6. many instrument calibrations method as claimed in claim 5 is characterized in that, the method also comprises: proofread and correct the step that the test process data are preserved.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569886A (en) * | 2014-12-05 | 2015-04-29 | 胡乔林 | Calibrating method for signal detection equipment based on time-frequency parameter standard instrument |
| CN104698428A (en) * | 2015-04-08 | 2015-06-10 | 南京天溯自动化控制系统有限公司 | Multi-electric-energy-meter automated testing method |
| CN107219487A (en) * | 2017-07-14 | 2017-09-29 | 国家电网公司 | A kind of table source integrates formula electrical devices verification platform |
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| CN101876693A (en) * | 2010-06-09 | 2010-11-03 | 合肥工业大学 | Electric energy metering chip-based terminal calibration system |
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| CN203037839U (en) * | 2013-01-16 | 2013-07-03 | 南京天溯自动化控制系统有限公司 | Multi-instrument correction device |
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| FR2625323A1 (en) * | 1987-12-24 | 1989-06-30 | Electricite De France | Interfacing device for the calibration of single-phase and three-phase electricity meters |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569886A (en) * | 2014-12-05 | 2015-04-29 | 胡乔林 | Calibrating method for signal detection equipment based on time-frequency parameter standard instrument |
| CN104569886B (en) * | 2014-12-05 | 2019-01-25 | 胡乔林 | Signal detection apparatus calibration method based on time and frequency parameter reference instrument mode |
| CN104698428A (en) * | 2015-04-08 | 2015-06-10 | 南京天溯自动化控制系统有限公司 | Multi-electric-energy-meter automated testing method |
| CN107219487A (en) * | 2017-07-14 | 2017-09-29 | 国家电网公司 | A kind of table source integrates formula electrical devices verification platform |
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Application publication date: 20130424 |