CN101629994B - Method for automatically calibrating terminal in batch - Google Patents
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Abstract
The invention provides a method for automatically calibrating a terminal in batch, which comprises the following steps: (A) physically setting, connecting the current of all phases of a terminal and the current of relevant phases of a standard meter and a power source in series and connecting the voltage of all phases and the voltages of relevant phases of the standard meter and the power source in parallel; (B) setting configuration and correspondingly configuring the terminal, the standard meter and the power source; (C) establishing serial port connection and connecting a working platform, the terminal, the standard meter and the power source; (D) calibrating the working platform, the calibration comprises data initialization in the zero step, gain calibration in the first step, phase calibration I in the second step, phase calibration II in the third step, phase calibration III in the fourth step and voltage and current calibration in the fifth step; (E) carrying out error detection; and (F) forming a test report.
Description
Technical field
The present invention relates to a kind of power domain, particularly about a kind of method of automatically calibrating terminal in batch.
Background technology
In electric system, various negative control terminals, distribution transformer terminals and low-voltage collecting meter reading terminal all need be to its measuring accuracy error calibratings before networking, and whether Calibration Method is related to the metering at terminal accurate, and whether the time relationship of calibration is to enhancing productivity.Present most calibrating mode all is to take the manual calibration steps of making mode; Not only the time of cost long, and can not guarantee to calibrate comprehensive, can not guarantee the stability of product; The ATT chip just has been applied in negative control terminal and distribution transformer terminals and the low-voltage collecting meter reading terminal low through manual calibration efficiency; Can not calibrate automatically, in the process of calibration, need repeatedly change the supply voltage at terminal and the angle between electric current and the electric current and voltage, and can not calibrate simultaneously many station terminals simultaneously.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of method that can realize in batches using in the negative control of calibration automatically, distribution transforming, the low-voltage collecting meter reading automatically calibrating terminal in batch of chip terminal.
The technical solution adopted for the present invention to solve the technical problems is: the method that a kind of automatically calibrating terminal in batch is provided; It may further comprise the steps: (A) physics setting; Be used for each phase current of terminal is connected with standard scale, the relevant phase current of power source, each phase voltage is carried out parallel connection with standard scale, the relevant phase voltage of power source;
(B) configuration is provided with, and is used for said terminal, said standard scale and said power source are carried out corresponding configuration;
(C) set up serial ports and connect, be used for worktable is connected with power source with said terminal and said standard scale;
(D) said worktable is calibrated, and said calibration comprises that said calibration comprised for the 0th step: data initialization, and the 1st step: gain calibration, the 2nd step: 1, the 3 step of phase correction: 2, the 4 steps of phase correction: 3, the 5 steps of phase correction: electric current and voltage is proofreaied and correct;
(E) carry out error-detecting;
(F) form test report.
The scheme of the further technical solution problem of the present invention is: in the step (A); Change through 232 between described worktable and said terminal, said standard scale and the described power source that serial ports are connected be provided with power source so that worktable can change Serial Port Lines through 232; And voltage, electric current, the active power of obtaining standard scale, be provided with and obtain the data message at terminal.
The scheme of the further technical solution problem of the present invention is: in the described step (B); Corresponding configuration comprises: the power source parameter is set; Said power source parameter comprises voltage, electric current, the phase angle of said power source, communication serial port, baud rate, check bit and address; Terminal parameter is set, and said terminal parameter comprises communication serial port, baud rate, check bit and the terminal address at said terminal; Communication serial port, baud rate and the check bit of said standard scale are set; The mode of connection at said terminal is set, need be arranged to phase three-wire three like the said terminal of phase three-wire three, three-phase and four-line need be arranged in the terminal of three-phase and four-line; Error range between the active power, voltage, electric current of active power, voltage, electric current and the said standard scale at said terminal, calibration back is set.
The scheme of the further technical solution problem of the present invention is: in the described step (C), worktable changes serial ports through 232 and connects with said terminal and said standard scale.
The scheme of the further technical solution problem of the present invention is: in the described step (D), data initialization is said worktable to be changeed serial ports through 232 initialization command is sent at the terminal.
The scheme of the further technical solution problem of the present invention is: in the described step (D); To be worktable change serial ports through 232 that power source is provided with voltage, the electric current that voltage makes power source is normal voltage, the current value that the terminal need be provided with in gain calibration; Angle between the electric current and voltage is 0 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The scheme of the further technical solution problem of the present invention is: in the described step (D); To be worktable change serial ports through 232 to phase correction 1 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is 2 times that the terminal need be provided with electric current; Angle between voltage, the electric current is 60 degree, under this condition, changes active power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal; To be worktable change serial ports through 232 to phase correction 2 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is that the terminal need be provided with electric current; Angle between the electric current and voltage is 60 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal; To be worktable change serial ports through 232 to phase correction 3 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is 0.1 times that the terminal need be provided with electric current; Angle between the electric current and voltage is 60 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The scheme of the further technical solution problem of the present invention is: in the described step (D); To be worktable change serial ports through 232 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is that the terminal need be provided with normal current for electric current and voltage calibration; Angle between the electric current and voltage is 0 degree, under this condition, changes electric current and voltage that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The scheme of the further technical solution problem of the present invention is: in the said step (E), obtain said terminal active power, voltage, electric current and calculate comparison with active power, voltage, the electric current of standard scale.
The scheme of the further technical solution problem of the present invention is: said terminal comprises negative control terminal, distribution transformer terminals and the low-voltage collecting meter reading terminal of using the ATT chip.
Compared to prior art; The advantage of the method for automatically calibrating terminal in batch of the present invention is: through many station terminals are calibrated simultaneously, avoided the problem that traditional workshop-based efficient that is prone to is low, stability is not high, set calibration parameter through worktable; Not only be beneficial to calibration operation; When the adjustment calibration parameter, can make things convenient for again, can write down the data message in the calibration process again simultaneously, for later data analysis provides great convenience with quick.The mode of this automatically calibrating terminal in batch has not only improved production efficiency, has reduced cost of labor again.
Description of drawings
Fig. 1 is the schematic flow sheet of the method for automatically calibrating terminal in batch provided by the invention.
Fig. 2 is the structural representation of calibration system of the method for this automatically calibrating terminal in batch of employing provided by the invention.
Embodiment
Following content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
As shown in Figure 1, the invention provides a kind of method of automatically calibrating terminal in batch, it comprises the steps:
A physics is provided with; Be used for each phase current of terminal is connected with standard scale, power source respectively with each phase voltage; Guarantee the circuit communication between them; Change through 232 between described worktable and said terminal, said standard scale and the described power source that serial ports are connected be provided with power source so that worktable can change Serial Port Lines through 232, and voltage, electric current, the active power of obtaining standard scale, be provided with and obtain the data message at terminal.
B disposes setting, is used for said terminal, said standard scale and said power source are carried out corresponding configuration; Concrete setting then comprises as follows: the power source parameter is set, and said power source parameter comprises voltage, electric current, the phase angle of said power source, communication serial port, baud rate, check bit and address;
Terminal parameter is set, and said terminal parameter comprises communication serial port, baud rate, check bit and the terminal address at said terminal;
Communication serial port, baud rate and the check bit of said standard scale are set;
The mode of connection at said terminal is set, need be arranged to phase three-wire three like the said terminal of phase three-wire three, three-phase and four-line need be arranged in the terminal of three-phase and four-line;
Error range between the active power, voltage, electric current of active power, voltage, electric current and the said standard scale at said terminal, calibration back is set.
C connects, and is used for that worktable is changeed serial ports through 232 and connects with said terminal and said standard scale; It is normal to guarantee that under the situation that starts worktable this worktable and the equipment that is connected with it connect.
The said worktable of D starts calibration and calibrates, and said calibration may further comprise the steps:
The 0th step: data initialization, said worktable change serial ports through 232 initialization command are sent at the terminal.
The 1st step: gain calibration; Worktable changes serial ports through 232, and power source is provided with voltage, the electric current that voltage makes power source is normal voltage, the current value that the terminal need be provided with; Angle between the electric current and voltage is 0 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The 2nd step: phase correction 1; Worktable changes serial ports through 232, and power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is 2 times that the terminal need be provided with electric current; Angle between voltage, the electric current is 60 degree, under this condition, changes active power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The 3rd step: phase correction 2; Worktable changes serial ports through 232, and power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is that the terminal need be provided with electric current; Angle between the electric current and voltage is 60 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The 4th step: phase correction 3; Worktable changes serial ports through 232, and power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is 0.1 times that the terminal need be provided with electric current; Angle between the electric current and voltage is 60 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
The 5th step: electric current and voltage calibration; Worktable changes serial ports through 232, and power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is that the terminal need be provided with normal current; Angle between the electric current and voltage is 0 degree, under this condition, changes electric current and voltage that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal.
E carries out error-detecting;
F forms test report.
Each phase current of said terminal and said standard scale, said power source polyphone, each phase voltage of said terminal and said standard scale, said power source are parallelly connected.
Said step e does, obtains said terminal active power, voltage, electric current and calculates comparison with active power, voltage, the electric current of standard scale.
Said worktable and said terminal and said standard scale, power source are connected through serial ports.
Said terminal comprises negative control terminal, distribution transformer terminals and the low-voltage collecting meter reading terminal of using the ATT chip.
Said terminal is changeed serial ports through custom protocol and said worktable through 232 and is communicated.Said standard scale changes voltage, electric current and the active power that serial ports obtains standard scale through the standard scale agreement through 232, and said power source passes through voltage, electric current and the phase angle of 232 commentaries on classics serial port setting power sources through the agreement of power source.
Said step F is that the data that produce in the above-mentioned steps are formed document, and said document is managed.
As shown in Figure 2; In the time of in the practical application; Adopt multithreading of the present invention that many station terminals are calibrated; Adopt the agreement of standard scale to obtain voltage, electric current, the active power of standard scale respectively, the agreement through power source through 232 change the serial port setting power sources voltage, electric current and phase angle, in agreement, handles the calibration data of being correlated with through the agreement of each power office's regulation the terminal is calibrated.Automatically calibration comprises a worktable 101 in batches; Many station terminals 102; One standard scale 103 and a power source 104, said terminal 102 each phase current and said standard scale 104, said power source 104 polyphones, said terminal 102 each phase voltage and said standard scale 103, said power source 104 are parallelly connected; Said worktable 101 and said terminal 102 and said standard scale 103, said power source 104 change serial ports through 232 and are connected, and said worktable 101 carries out information transmission through 232 commentaries on classics serial ports and said terminal 102 and said standard scale 103, said power source 104.When calibrating, comprise following several steps, worktable 101 says the word through serial ports according to the agreement of standard scale and obtains active power, voltage, the electric current of said standard scale 103; According to comprising in self-defined in the fixed agreement of each power office that the calibration data that we define sends calibration command through serial ports to said terminal 102; Calibrate and detect.When data compare; Whether the active power of active power and standard scale of judging the terminal is in-0.5% ~ 0.5% scope; Active power Error Calculation formula (standard source active power value-terminal active power value)/standard source active power value; Judge the voltage at terminal; The voltage of electric current and standard scale, electric current whether in-0.5% ~ 0.5% scope, voltage error computing formula (standard source magnitude of voltage terminal voltage value)/standard source magnitude of voltage, current error computing formula (standard source current value-terminal current value)/standard source current value.
Can carry out calibration operation automatically through worktable 101, through multithreading, time repeating query mechanism realizes.Each setting takies a serial ports, and each serial ports transceive data respectively starts a thread, through confirming how long to carry out next action the time delay that is provided with, judges the current executed situation according to the data that each serial ports receives.
The method of automatically calibrating terminal in batch of the present invention is through calibrate many station terminals simultaneously; Avoided the problem that traditional workshop-based efficient that is prone to is low, stability is not high; Set calibration parameter through worktable, not only be beneficial to calibration operation, when the adjustment calibration parameter, can make things convenient for again with quick; Simultaneously can write down the data message in the calibration process again, for later data analysis provides great convenience.The mode of this automatically calibrating terminal in batch has not only improved production efficiency, has reduced cost of labor again.
Claims (6)
1. the method for an automatically calibrating terminal in batch, it may further comprise the steps:
(A) physics setting is used for each phase current of terminal is connected with standard scale, the relevant phase current of power source, and each phase voltage is carried out parallel connection with standard scale, the relevant phase voltage of power source;
(B) configuration is provided with; Be used for said terminal, said standard scale and said power source are carried out corresponding configuration; Corresponding configuration comprises: the power source parameter is set, and said power source parameter comprises voltage, electric current, the phase angle of said power source, communication serial port, baud rate, check bit and address; Terminal parameter is set, and said terminal parameter comprises communication serial port, baud rate, check bit and the terminal address at said terminal; Communication serial port, baud rate and the check bit of said standard scale are set; The mode of connection at said terminal is set, and phase three-wire three need be arranged in the said terminal of phase three-wire three, and three-phase and four-line need be arranged in the terminal of three-phase and four-line; Error range between the active power, voltage, electric current of active power, voltage, electric current and the said standard scale at said terminal, calibration back is set;
(C) set up serial ports and connect, be used for worktable is connected with power source with said terminal and said standard scale;
(D) said worktable is calibrated, and said calibration comprised for the 0th step: data initialization, and the 1st step: gain calibration, the 2nd step: 1, the 3 step of phase correction: 2, the 4 steps of phase correction: 3, the 5 steps of phase correction: electric current and voltage is proofreaied and correct;
To be worktable change serial ports through 232 that power source is provided with voltage, the electric current that voltage makes power source is normal voltage, the current value that the terminal need be provided with in gain calibration; Angle between the electric current and voltage is 0 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal;
In the described step (D); To be worktable change serial ports through 232 to phase correction 1 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is 2 times that the terminal need be provided with electric current; Angle between voltage, the electric current is 60 degree, under this condition, changes active power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal; To be worktable change serial ports through 232 to phase correction 2 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is that the terminal need be provided with electric current; Angle between the electric current and voltage is 60 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal; To be worktable change serial ports through 232 to phase correction 3 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is 0.1 times that the terminal need be provided with electric current; Angle between the electric current and voltage is 60 degree, under this condition, changes power that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal;
In the described step (D); To be worktable change serial ports through 232 that power source is provided with the voltage that voltage makes power source is that normal voltage, the electric current that the terminal need be provided with is that the terminal need be provided with normal current for electric current and voltage calibration; Angle between the electric current and voltage is 0 degree, under this condition, changes electric current and voltage that Serial Port Lines read standard scale through 232 and changes serial ports through 232 again calibration command is sent at the terminal;
(E) carry out error-detecting;
(F) form test report.
2. the method for automatically calibrating terminal in batch according to claim 1; It is characterized in that: in the step (A); Change through 232 between described worktable and said terminal, said standard scale and the described power source that serial ports are connected be provided with power source so that worktable can change Serial Port Lines through 232; And voltage, electric current, the active power of obtaining standard scale, be provided with and obtain the data message at terminal.
3. the method for automatically calibrating terminal in batch according to claim 1 is characterized in that: in the described step (C), worktable changes serial ports through 232 and connects with said terminal and said standard scale.
4. the method for automatically calibrating terminal in batch according to claim 1 is characterized in that: in the described step (D), data initialization is said worktable to be changeed serial ports through 232 initialization command is sent at the terminal.
5. the method for automatically calibrating terminal in batch according to claim 1 is characterized in that: in the said step (E), obtain said terminal active power, voltage, electric current and calculate comparison with active power, voltage, the electric current of standard scale.
6. the method for automatically calibrating terminal in batch according to claim 1 is characterized in that: said terminal comprises negative control terminal, distribution transformer terminals and the low-voltage collecting meter reading terminal of using the ATT chip.
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| CN2009103053669A CN101629994B (en) | 2009-08-07 | 2009-08-07 | Method for automatically calibrating terminal in batch |
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| CN2009103053669A CN101629994B (en) | 2009-08-07 | 2009-08-07 | Method for automatically calibrating terminal in batch |
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| CN101629994B true CN101629994B (en) | 2012-05-30 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102478648B (en) * | 2010-11-24 | 2013-11-13 | 南京南瑞继保电气有限公司 | A device measured value precision automatic calibration method and system |
| CN102854485A (en) * | 2012-09-29 | 2013-01-02 | 深圳市亚特尔科技有限公司 | Automated adjustment system for comprehensive multi-parameter electrical measuring instrument and adjustment method |
| CN105589051A (en) * | 2014-11-18 | 2016-05-18 | 德信东源电力技术服务（北京）有限公司 | Method and device for calibrating current and method for detecting current |
| CN108562864A (en) * | 2018-02-27 | 2018-09-21 | 杭州海兴电力科技股份有限公司 | The method that single-point power method calibrates electric energy meter error |
| CN108828494B (en) * | 2018-04-18 | 2020-06-12 | 电子科技大学 | Intelligent electric energy meter function verification method based on genetic algorithm |
| CN109100672B (en) * | 2018-10-18 | 2020-11-17 | 深圳供电局有限公司 | Adjusting method of voltage and current sampling module suitable for non-invasive load monitoring |
| CN109856587B (en) * | 2018-12-20 | 2021-11-26 | 宁波三星智能电气有限公司 | On-site one-key meter calibration method for power terminal |
| CN111239660A (en) * | 2019-09-17 | 2020-06-05 | 惠州化能汇通智能科技有限公司 | Novel full-automatic batch calibration device of distribution transformer intelligent monitoring terminal |
| CN112363001A (en) * | 2020-11-24 | 2021-02-12 | 科大智能电气技术有限公司 | High-precision metering method and system for platform area intelligent fusion terminal |
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| US20030042886A1 (en) * | 2001-08-28 | 2003-03-06 | Analog Devices, Inc. | Methods and apparatus for phase compensation in electronic energy meters |
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