CN201199265Y - Full-automatic calibrating apparatus for voltage monitoring instrument - Google Patents
Full-automatic calibrating apparatus for voltage monitoring instrument Download PDFInfo
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- CN201199265Y CN201199265Y CNU2008200868599U CN200820086859U CN201199265Y CN 201199265 Y CN201199265 Y CN 201199265Y CN U2008200868599 U CNU2008200868599 U CN U2008200868599U CN 200820086859 U CN200820086859 U CN 200820086859U CN 201199265 Y CN201199265 Y CN 201199265Y
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- monitoring instrument
- voltage monitoring
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Abstract
The utility model relates to a fully automatic calibrating apparatus of a voltage monitoring instrument, which pertains to electric calibrating apparatuses. The calibrating apparatus of the prior art has low efficiency; the fully automatic calibrating apparatus is provided with a power source switch, a power socket and a main control chip part at the output end of voltage; the main control chip part is connected with a voltage measuring part, a clock detecting part, a conditioning signal detecting part, a signal generating part, an external data memory, and an industrial computer part, a displaying part, a mouse and a keyboard which are connected with the main control chip part by a serial interface; the signal generating part is connected with a voltage boost and power amplifier part; the clock detecting part comprises a standard frequency generator. The calibrating apparatus can fast boost voltage when calibrating the voltage monitoring instrument, can complete the calibration and recording of fundamental errors within 20S, can calibrate the accuracy of a 4Hz pulse output by the voltage monitoring instrument by high-frequency pulse of 50K within 1 minute, and only needs minimum time of 10 minutes for calibrating one voltage monitoring instrument, including the calibration of a clock, thereby greatly improving calibrating efficiency.
Description
Technical field
The utility model belongs to the electricity calibrating installation, the full-automatic calibrating installation of a kind of specifically voltage monitoring instrument.
Background technology
Voltage monitoring instrument is to be used for monitoring voltage and the instrument of adding up rate of qualified voltage, its monitoring and the whether accurate performance that depends on himself of adding up, therefore need examine and determine the performance of voltage monitoring instrument, this calibrating is finished by the voltage monitoring instrument calibrating installation.Voltage monitoring instrument of existing calibrating installation calibrating needs about 40 minutes (do not comprise the clock calibrating, the clock calibrating needs contrast just can find out error in three days), and efficient is low.
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the inefficient defective of calibrating that prior art exists, and provides a kind of voltage monitoring instrument full-automatic calibrating installation.For this reason, the utility model is by the following technical solutions:
The full-automatic calibrating installation of voltage monitoring instrument, it has the main control chip part of charged source switch, supply socket and a voltage output end, be connected with voltage measurement part, clock detection part, the input of adjusting part, signal generator branch, external data memory on this main control chip part and through the connected industrial computer part of serial ports, display part, mouse and keyboard, be connected with on described signal generator divides and boost and the power amplifier part, described clock detection partly comprises a standard frequency generator.The main control chip part of this full-automatic calibrating installation is interior with application program, during use, can be by automatic Verification such as the calibrating of industrial computer or external computer realization fundamental error, the error of adjusting and sensitivity error calibrating, clocking error calibrating, statistical error calibratings.Standard frequency generator is used to form standard time clock, makes things convenient for statistical test and composite measurement, yield analysis, can carry out the clock automatic Verification to the voltage monitoring instrument that the output of 4HZ clock signal is arranged simultaneously, and calculates a year error.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
Be connected with change-over switch on the described display part.Be used for switch operating between external computing machine or industrial computer.
Be connected with reset button on the described main control chip part.No matter this device is in any workflow,, just can return not alive previous status at once as long as start reset key.
Described power switch, supply socket, voltage output end, display part, mouse and keyboard and reset button are arranged on the exterior panel.Therefore need not device is taken out in case, only need open case lid just can finish all calibratings.
The beneficial effects of the utility model are:
1, by automatic Verification such as the calibrating of industrial computer or external computer realization fundamental error, the error of adjusting and sensitivity error calibrating, clocking error calibrating, statistical error calibratings.
2, in device, form standard time clock, make things convenient for statistical test and composite measurement, yield analysis, can carry out the clock automatic Verification to the voltage monitoring instrument that the output of 4HZ clock signal is arranged simultaneously, and calculate a year error.
3, this calibrating installation can rise voltage fast when detecting voltage monitoring instrument, finish the verification and the record of fundamental error in the 20S, the 4HZ pulse accuracy of high-frequency impulse calibrating voltage monitoring instrument output by 50K in can be in 1 minute, examining and determine a minimum time of voltage monitoring instrument only needs 10 minutes, comprise the calibrating (can detect the error of clock in a minute) of clock, improved calibrating efficient greatly; Realize the data management of system, science by utility software, be applicable to the calibrating of department such as electric power, railway and manufacturer voltage monitoring instrument.
Description of drawings
Fig. 1 is a square frame principle synoptic diagram of the present utility model.
Fig. 2 carries out the schematic diagram of fundamental error calibrating for frame principle figure shown in Figure 1.
Fig. 3 is the frame principle figure shown in Figure 1 schematic diagram of error and sensitivity error calibrating of adjusting.
Fig. 4 carries out the schematic diagram of clocking error calibrating for frame principle figure shown in Figure 1.
Fig. 5 carries out the schematic diagram of statistical error calibrating for frame principle figure shown in Figure 1.
Fig. 6 is the schematic layout pattern of the utility model panel.
Fig. 7 is a kind of physical circuit figure of main control chip part of the present utility model.
Fig. 8 is a kind of physical circuit figure of voltage measurement part of the present utility model.
Fig. 9 is a kind of physical circuit figure that signal generator of the present utility model divides.
Figure 10 is a kind of physical circuit figure of external data memory of the present utility model.
Figure 11 is a kind of physical circuit figure of input part that adjusts of the present utility model.
Figure 12 is a kind of physical circuit figure of serial ports of the present utility model.
Figure 13 boosts and power amplifier a kind of physical circuit figure partly for of the present utility model.
Embodiment
Below in conjunction with Figure of description the utility model is done further explanation.
As shown in Figure 1, it has a charged source switch the full-automatic calibrating installation of this voltage monitoring instrument, the main control chip part (see figure 7) of supply socket and voltage output end, be connected with voltage measurement part (see figure 8) on this main control chip part, the clock detection part, the input of adjusting part (seeing Figure 11), signal generator divides (see figure 9), external data memory (see figure 10) and through the connected industrial computer part of serial ports (seeing Figure 12), the display part, mouse and keyboard, be connected with on described signal generator divides and boost and power amplifier part (seeing Figure 13), described clock detection partly comprises a standard frequency generator; Be connected with change-over switch on the display part; Be connected with reset button on the main control chip part.
As shown in Figure 6, power switch, supply socket, voltage output end, display part, mouse and keyboard and reset button are arranged on the exterior panel.
Industrial computer is used for fitting operation software, is used to handle the information that calibrating installation obtains;
During work, the monitoring voltage end of voltage monitoring instrument is connected with the voltage output end of calibrating installation, to voltage monitoring instrument outputting standard operating voltage, its calibrating principle is by calibrating installation:
Fundamental error calibrating principle is as shown in Figure 2: by application software the relevant detection point is set on industrial computer, the voltage that industrial computer control main control chip part provides application software to be provided with by signal generator branch, power amplifier and boost part and voltage measurement part to voltage monitoring instrument.Industrial computer is by the read back magnitude of voltage (abbreviation measured value) of voltage monitoring instrument of RS232 interface, industrial computer is again by the read back magnitude of voltage (abbreviation standard value) of control output of main control chip part of RS232 interface, industrial computer relatively draws fundamental error to measured value and standard value, then error is deposited in database.
Clocking error is examined and determine principle as shown in Figure 4: voltage monitoring instrument is exported the frequency of 4HZ to main control chip part by the standard time clock of clock detection part, the main control chip partly produces the standard frequency of 50K, the 4HZ pulse of Voltage detector is a triggering level, first rising edge then calibrating installation begins to accept the 50K frequency, finishes counting (CNT) when the 4th rising edge.The Error Calculation formula is that ((50-CNT) K/50K) S is scaled a year error again, and industrial computer is fetched data presentation and preserved.
The error of adjusting and sensitivity error are examined and determine principle as shown in Figure 3: the voltage monitoring instrument output alarm signal is given the input part of adjusting, the input of adjusting part begins boosted voltage from the value that the higher limit of setting deducts about 3% (gear full scale value), according to the amplitude that voltage increases by 0.05% (gear full scale value) being surveyed upper limit trigger voltage every 2S, give calibrating installation up to the Voltage detector output alarm signal, the input of the adjusting voltage that partly tops out writes down this value.On the basis of this value, add 3% then, the amplitude that voltage reduces by 0.05% (gear full scale value) is surveyed upper limit return voltage and record every 2S.Had these two values just can calculate sensitivity to be: (upper limit trigger voltage-upper limit return voltage)/upper limit trigger voltage), the upper voltage limit fundamental error is (higher limit-upper limit trigger voltage)/higher limit).Lower limit detects with top step.Industrial computer is fetched data presentation and is preserved.
Statistical error is examined and determine principle as shown in Figure 5: make the clock synchronization of calibrating installation and voltage monitoring instrument and remove former statistics (perhaps voltage monitoring instrument is opened statistics calibrating district in addition and removed this district's data) before detection, calibrating installation brings into operation under the parameter of the upper limit that configures (as 107V), lower limit (93V), upper limit detection time (3 minutes), qualified time (4 minutes) and lower limit detection time (3 minutes), at first voltage is raised to more than the higher limit upper limit detection time (3 minutes) that operation configures.After the upper limit arrived detection time, voltage dropped in the qualified voltage value (as 100V), the qualified time (4 minutes) that operation configures.Lower limit detects with top step.Calibrating installation was noted upper limit rate (30%), qualification rate (40%), lower limit rate (30%), maximal value, minimum value after operation was finished, and industrial computer is fetched data presentation and preserved.
After finishing, each step calibrating all passes through the industrial computer part directly to data-carrier store.
More than the parameter of these settings only needed before detecting the input industrial computer to preserve, access use later at every turn and get final product, need not reset.So whole verification process only needs the testing person to configure parameter (voltage monitoring instrument producer when the calibrating beginning, way, the gear on every road, higher limit, lower limit, the upper limit rate calibrating time, the qualification rate calibrating time, the lower limit rate calibrating time, the clock detection time), by the industrial computer operating software, then industrial computer is with control verification device and voltage monitoring instrument begin calibrating voluntarily, whole verification process need not the testing person intervenes, calibrating installation can be finished by alarm after calibrating was finished, industrial computer can jump out whether qualified calibrating is finished and information, and the recorded and stored automatic report generation.
The voltage monitoring instrument calibrating to multichannel under the cooperation of software of this calibrating installation also is very easily.Calibrating is preceding with the tested end parallel connection of the multichannel of voltage monitoring instrument, and sets gear, higher limit, lower limit, upper limit rate calibrating time, qualification rate calibrating time, lower limit rate calibrating time, the clock calibrating time on voltage monitoring instrument producer, way, every road.The testing person is after establishing above parameter, begin to detect by the software leaves calibrating installation from the first via, after finishing first via detection, industrial computer and source (hummer rings) prompting is finished, and then begins to carry out the second the tunnel and detects, after each road is detected and all finished, whether source and industrial computer prompting calibrating are finished qualified, whether prompting will preserve, and industrial computer is drawn form according to data, and statement form can be selected.
Claims (4)
1. the full-automatic calibrating installation of voltage monitoring instrument, it has the main control chip part of charged source switch, supply socket and a voltage output end, be connected with voltage measurement part, clock detection part, the input of adjusting part, signal generator branch, external data memory on this main control chip part and through the connected industrial computer part of serial ports, display part, mouse and keyboard, be connected with on described signal generator divides and boost and the power amplifier part, described clock detection partly comprises a standard frequency generator.
2. the full-automatic calibrating installation of voltage monitoring instrument according to claim 1 is characterized in that being connected with change-over switch on the described display part.
3. the full-automatic calibrating installation of voltage monitoring instrument according to claim 1 and 2 is characterized in that being connected with reset button on the described main control chip part.
4. the full-automatic calibrating installation of voltage monitoring instrument according to claim 3 is characterized in that described power switch, supply socket, voltage output end, display part, mouse and keyboard and reset button are arranged on the exterior panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200868599U CN201199265Y (en) | 2008-05-19 | 2008-05-19 | Full-automatic calibrating apparatus for voltage monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200868599U CN201199265Y (en) | 2008-05-19 | 2008-05-19 | Full-automatic calibrating apparatus for voltage monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201199265Y true CN201199265Y (en) | 2009-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200868599U Expired - Fee Related CN201199265Y (en) | 2008-05-19 | 2008-05-19 | Full-automatic calibrating apparatus for voltage monitoring instrument |
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| Country | Link |
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| CN (1) | CN201199265Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533081B (en) * | 2009-04-17 | 2011-10-26 | 卡斯柯信号有限公司 | Automatic detection device for railway signal microcomputer detecting system equipment |
| CN103018697A (en) * | 2011-09-28 | 2013-04-03 | 南京丹迪克科技开发有限公司 | Full-functional multiple-meter-position checking device for voltage monitors |
| CN112505606A (en) * | 2020-12-16 | 2021-03-16 | 广东电网有限责任公司清远供电局 | Calibration device and calibration method for setting values of multiple voltage monitors |
-
2008
- 2008-05-19 CN CNU2008200868599U patent/CN201199265Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533081B (en) * | 2009-04-17 | 2011-10-26 | 卡斯柯信号有限公司 | Automatic detection device for railway signal microcomputer detecting system equipment |
| CN103018697A (en) * | 2011-09-28 | 2013-04-03 | 南京丹迪克科技开发有限公司 | Full-functional multiple-meter-position checking device for voltage monitors |
| CN103018697B (en) * | 2011-09-28 | 2016-05-11 | 南京丹迪克科技开发有限公司 | A kind of Multifunctional multi-epitope voltage monitor calibrator |
| CN112505606A (en) * | 2020-12-16 | 2021-03-16 | 广东电网有限责任公司清远供电局 | Calibration device and calibration method for setting values of multiple voltage monitors |
| CN112505606B (en) * | 2020-12-16 | 2022-04-12 | 广东电网有限责任公司清远供电局 | Calibration device and calibration method for setting values of multiple voltage monitors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20090225 Termination date: 20160519 |