CN102645578A - Automatic simulation calibrating method and device for sensor - Google Patents
Automatic simulation calibrating method and device for sensor Download PDFInfo
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- CN102645578A CN102645578A CN2011100403297A CN201110040329A CN102645578A CN 102645578 A CN102645578 A CN 102645578A CN 2011100403297 A CN2011100403297 A CN 2011100403297A CN 201110040329 A CN201110040329 A CN 201110040329A CN 102645578 A CN102645578 A CN 102645578A
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Abstract
The invention provides an automatic simulation calibrating method and an automatic simulation calibrating device for a sensor. The work environment temperature is set as the standard temperature and is input into a calibration unit, error signals of sampling voltage signals and voltage signals are calculated, in addition, the corresponding regulating temperature is obtained, the regulating temperature is used as a correction value to be stored in a calibrating system of a channel for calibration, all channels are cyclically calibrated, further, the automatic calibration is realized, and the work efficiency and the calibrating precision are greatly improved.
Description
Technical field
The present invention relates to the Automatic Calibration Technique field, relate in particular to a kind of sensor simulation automatic calibration method and device.
Background technology
Signal emulation system is an Electronic Control production production run in enormous quantities, is used for various devices are carried out the equipment of burn-in screen.Because the device aging screening is carried out under condition of different temperatures, the temperature detection of each link is most important.By sensor wiring with calculate to measure the error that causes, with the adversely effecting temp accuracy of detection, can improve the precision of burn-in screen greatly to the calibration of temperature.
The calibration steps of prior art is the manual adjustment variable resistor, manually imports modified value.Speed is slow, efficient is low, low precision, and signal emulation system has a plurality of sensors, can't use common calibration steps at all.
Therefore, it is very necessary to design a kind of sensor simulation automatic calibration method and device simple fast, that precision is high, is one of Automatic Calibration Technique field problem anxious to be solved at present.
Summary of the invention
The embodiment of the invention provides a kind of sensor simulation automatic calibration method and device; Through operating ambient temperature is set is standard temperature and import in the alignment unit, the error signal of calculating sampling voltage signal and voltage signal, and obtain its corresponding adjustment temperature; The adjustment temperature deposited in as modified value in the calibration system of this passage calibrate; Circulation is calibrated whole passages, and then calibrates automatically, has improved work efficiency and calibration accuracy greatly.
The embodiment of the invention provides following technical scheme:
A kind of sensor simulation automatic calibration method comprises:
Step 1, operating ambient temperature is set is standard temperature and import alignment unit.
Step 2, the sensor sample voltage signal of gathering a passage and the corresponding temperature of acquisition.
Step 3, standard temperature imported obtain output voltage signal in the simulative resistance circuit.
The error signal of step 4, calculating sampling voltage signal and voltage signal, and obtain its corresponding adjustment temperature.
Step 5, will adjust in temperature deposits this passage in as modified value the calibration system and calibrate.
Preferably, in the above-mentioned steps one, standard temperature is 25 degrees centigrade.
Preferably, in the above-mentioned steps one, the standard temperature precision is ± 0.1 degree centigrade.
Preferably, in the above-mentioned steps two and three, obtain voltage or obtain temperature through voltage through temperature, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Preferably, in the above-mentioned steps six, judge whether whole passages calibrate outer finishing, do not finish, then get into next passage, promptly next passage is calibrated,, then finish to calibrate if all calibration finishes if all calibrate.
Preferably, in the above-mentioned steps two and three, sensor and simulative resistance circuit are connected under the same constant-current power supply circuit.
Preferably, above-mentioned constant-current source circuit value is 0.5mA.
A kind of sensor simulation automatic calibration device comprises module, acquisition module, voltage acquisition module, computing module, calibration module and circulation module are set.
Preferably, above-mentionedly module is set to be used to be provided with operating ambient temperature be standard temperature and import alignment unit.
Preferably, above-mentioned acquisition module is used to gather the sensor sample voltage signal of a passage and obtains corresponding temperature.
Preferably, above-mentioned voltage acquisition module is used for that standard temperature is imported simulative resistance circuit and obtains output voltage signal.
Preferably, the aforementioned calculation module is used for the error signal of calculating sampling voltage signal and voltage signal, and obtains corresponding adjustment temperature.
Preferably, above-mentioned calibration module is used for the adjustment temperature is calibrated as the calibration system that modified value deposits this passage in.
Preferably, above-mentioned circulation module be used for the circulation whole passages are calibrated.
A kind of sensor simulation automatic calibration method provided by the invention and device; Through operating ambient temperature is set is standard temperature and import in the alignment unit, the error signal of calculating sampling voltage signal and voltage signal, and obtain its corresponding adjustment temperature; The adjustment temperature deposited in as modified value in the calibration system of this passage calibrate; Circulation is calibrated whole passages, and then calibrates automatically, has improved work efficiency and calibration accuracy greatly.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below.Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sensor simulation automatic calibration method process flow diagram that the embodiment of the invention provides;
Fig. 2 is the sensor simulation automatic calibration device synoptic diagram that the embodiment of the invention provides.
Embodiment
The embodiment of the invention provides a kind of sensor simulation automatic calibration method and device; Through operating ambient temperature is set is standard temperature and import in the alignment unit, the error signal of calculating sampling voltage signal and voltage signal, and obtain its corresponding adjustment temperature; The adjustment temperature deposited in as modified value in the calibration system of this passage calibrate; Circulation is calibrated whole passages, and then calibrates automatically, has improved work efficiency and calibration accuracy greatly.For making the object of the invention, technical scheme and advantage clearer, the embodiment that develops simultaneously with reference to the accompanying drawings is to further explain of the present invention.
The embodiment of the invention provides a kind of sensor simulation automatic calibration method, and is as shown in Figure 1, and concrete steps comprise:
Step 1, operating ambient temperature is set is standard temperature and import alignment unit.
Particularly, in embodiments of the present invention: the operating ambient temperature of adjustment signal emulation system, the operating ambient temperature of signal emulation system is adjusted into standard temperature Ts, standard temperature Ts=25 ℃, precision is ± 0.1 ℃.
And with standard temperature Ts as in the setting value input alignment unit.
Step 2 is gathered the sensor sample voltage signal of a passage and is obtained corresponding temperature.
Particularly, in embodiments of the present invention: gather the voltage signal VA of the sensor of a passage, and obtain corresponding temperature T 0.
Obtain voltage or obtain temperature through voltage through temperature in embodiments of the present invention, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Step 3 is imported standard temperature and is obtained output voltage signal in the simulative resistance circuit.
Particularly, in embodiments of the present invention: in standard temperature Ts input simulative resistance circuit, and obtain the voltage signal VB that simulative resistance circuit is exported.
Obtain voltage or obtain temperature through voltage through temperature in embodiments of the present invention, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Step 4, the error signal of calculating sampling voltage signal and voltage signal, and obtain its corresponding adjustment temperature.
Particularly, in embodiments of the present invention: the error signal Δ V of sampled voltage signal VA and voltage signal VB, and obtain its corresponding adjustment temperature T Δ, this temperature is the temperature of required adjustment.
Obtain voltage or obtain temperature through voltage through temperature in embodiments of the present invention, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Step 5 deposits the adjustment temperature in the calibration system of this passage and to calibrate as modified value.
Particularly, in embodiments of the present invention, adjustment temperature T Δ is deposited in as modified value in the calibration system of this passage and calibrate.
Particularly, in embodiments of the present invention: judge whether whole passages calibrate outer finishing, do not finish, then get into next passage, promptly next passage is calibrated,, then finish to calibrate if all calibration finishes if all calibrate.
In a kind of sensor simulation automatic calibration method and device that the embodiment of the invention provides, sensor and simulative resistance circuit are connected under the same constant-current power supply circuit, and this constant-current source circuit value is 0.5mA.
In addition, the embodiment of the invention also provides a kind of sensor simulation automatic calibration device.A kind of sensor simulation automatic calibration device synoptic diagram as shown in Figure 2, as to provide for the embodiment of the invention.
A kind of sensor simulation automatic calibration device comprises module 11, acquisition module 22, voltage acquisition module 33, computing module 44, calibration module 55 and circulation module 66 are set.
Particularly, in embodiments of the present invention: the operating ambient temperature of adjustment signal emulation system, the operating ambient temperature of signal emulation system is adjusted into standard temperature Ts, standard temperature Ts=25 ℃, precision is ± 0.1 ℃.
And with standard temperature Ts as in the setting value input alignment unit.
Particularly, in embodiments of the present invention: gather the voltage signal VA of the sensor of a passage, and obtain corresponding temperature T 0.
Obtain voltage or obtain temperature through voltage through temperature in embodiments of the present invention, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Particularly, in embodiments of the present invention: in standard temperature Ts input simulative resistance circuit, and obtain the voltage signal VB that simulative resistance circuit is exported.
Obtain voltage or obtain temperature through voltage through temperature in embodiments of the present invention, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Particularly, in embodiments of the present invention: the error signal Δ V of sampled voltage signal VA and voltage signal VB, and obtain its corresponding adjustment temperature T Δ, this temperature is the temperature of required adjustment.
Obtain voltage or obtain temperature through voltage through temperature in embodiments of the present invention, promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
Particularly, in embodiments of the present invention, adjustment temperature T Δ is deposited in as modified value in the calibration system of this passage and calibrate.
Particularly, in embodiments of the present invention: judge whether whole passages calibrate outer finishing, do not finish, then get into next passage, promptly next passage is calibrated,, then finish to calibrate if all calibration finishes if all calibrate.
In a kind of sensor simulation automatic calibration method and device that the embodiment of the invention provides, sensor and simulative resistance circuit are connected under the same constant-current power supply circuit, and this constant-current source circuit value is 0.5mA.
One of ordinary skill in the art will appreciate that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to accomplish through program; Described program can be stored in a kind of computer-readable recording medium; This program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If said integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
In sum, this paper provides the embodiment of the invention that a kind of sensor simulation automatic calibration method and device are provided, through operating ambient temperature is set is standard temperature and import in the alignment unit; The error signal of calculating sampling voltage signal and voltage signal; And obtain its corresponding adjustment temperature, and the adjustment temperature being deposited in as modified value in the calibration system of this passage and calibrate, circulation is calibrated whole passages; And then calibrate automatically, improved work efficiency and calibration accuracy greatly.
More than a kind of sensor simulation automatic calibration method provided by the present invention and device have been carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand scheme of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a sensor simulation automatic calibration method is characterized in that, said automatic calibrating method comprises:
Step 1, operating ambient temperature is set is standard temperature and import alignment unit;
Step 2, the sensor sample voltage signal of gathering a passage and the corresponding temperature of acquisition;
Step 3, standard temperature imported obtain output voltage signal in the simulative resistance circuit;
The error signal of step 4, calculating sampling voltage signal and voltage signal, and obtain its corresponding adjustment temperature;
Step 5, will adjust in temperature deposits this passage in as modified value the calibration system and calibrate;
Step 6, circulation are calibrated whole passages.
2. automatic calibrating method according to claim 1 is characterized in that, in said step 1, standard temperature is 25 degrees centigrade.
3. automatic calibrating method according to claim 1 is characterized in that, in said step 1, the standard temperature precision is ± 0.1 degree centigrade.
4. automatic calibrating method according to claim 1 is characterized in that, in said step 2 and three, obtains voltage or obtains temperature through voltage through temperature, and promptly voltage and resistance is corresponding, all the employing method of tabling look-up.
5. automatic calibrating method according to claim 1 is characterized in that, in said step 6; Judge whether whole passages calibrate outer finishing, do not finish, then get into next passage if all calibrate; Promptly next passage is calibrated,, then finished calibration if all calibration finishes.
6. automatic calibrating method according to claim 1 is characterized in that, in said step 2 and three, sensor and simulative resistance circuit are connected under the same constant-current power supply circuit.
7. automatic calibrating method according to claim 6 is characterized in that, said constant-current source circuit value is 0.5mA.
8. a sensor simulation automatic calibration device is characterized in that, said self-checking device comprises module, acquisition module, voltage acquisition module, computing module, calibration module and circulation module are set.
9. self-checking device according to claim 8 is characterized in that, saidly module is set to be used to be provided with operating ambient temperature be standard temperature and import alignment unit.
10. self-checking device according to claim 8 is characterized in that, said acquisition module is used to gather the sensor sample voltage signal of a passage and obtains corresponding temperature; Said voltage acquisition module is used for that standard temperature is imported simulative resistance circuit and obtains output voltage signal; Said computing module is used for the error signal of calculating sampling voltage signal and voltage signal, and obtains corresponding adjustment temperature; Said calibration module is used for the adjustment temperature is calibrated as the calibration system that modified value deposits this passage in; Said circulation module is used for circulation whole passages is calibrated.
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| CN2011100403297A CN102645578A (en) | 2011-02-18 | 2011-02-18 | Automatic simulation calibrating method and device for sensor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149395A (en) * | 2013-03-01 | 2013-06-12 | 天津大学 | Temperature compensation method for multi-channel analog acquisition card |
| CN103868200A (en) * | 2014-03-17 | 2014-06-18 | 广东美的制冷设备有限公司 | Level voltage output device used for simulating temperature variations |
| CN107064436A (en) * | 2017-06-15 | 2017-08-18 | 广东美的制冷设备有限公司 | Gas detection method, sensor and the storage medium of MEMS sensor |
| CN107645260A (en) * | 2016-07-20 | 2018-01-30 | 湖南中车时代电动汽车股份有限公司 | Electric machine controller error calibration method and device |
| CN103487776B (en) * | 2013-09-14 | 2018-10-02 | 西安奇维科技有限公司 | One kind being based on FPGA error calibration methods |
| CN112799457A (en) * | 2020-12-31 | 2021-05-14 | 深圳市紫光同创电子有限公司 | Voltage calibration circuit and method |
| CN114138046A (en) * | 2021-11-26 | 2022-03-04 | 珠海格力电器股份有限公司 | Sampling circuit calibration control method and system and photovoltaic air conditioner |
-
2011
- 2011-02-18 CN CN2011100403297A patent/CN102645578A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149395A (en) * | 2013-03-01 | 2013-06-12 | 天津大学 | Temperature compensation method for multi-channel analog acquisition card |
| CN103149395B (en) * | 2013-03-01 | 2015-09-23 | 天津大学 | A kind of temperature compensation for multi-channel analog acquisition card |
| CN103487776B (en) * | 2013-09-14 | 2018-10-02 | 西安奇维科技有限公司 | One kind being based on FPGA error calibration methods |
| CN103868200A (en) * | 2014-03-17 | 2014-06-18 | 广东美的制冷设备有限公司 | Level voltage output device used for simulating temperature variations |
| CN107645260A (en) * | 2016-07-20 | 2018-01-30 | 湖南中车时代电动汽车股份有限公司 | Electric machine controller error calibration method and device |
| CN107064436A (en) * | 2017-06-15 | 2017-08-18 | 广东美的制冷设备有限公司 | Gas detection method, sensor and the storage medium of MEMS sensor |
| CN112799457A (en) * | 2020-12-31 | 2021-05-14 | 深圳市紫光同创电子有限公司 | Voltage calibration circuit and method |
| CN114138046A (en) * | 2021-11-26 | 2022-03-04 | 珠海格力电器股份有限公司 | Sampling circuit calibration control method and system and photovoltaic air conditioner |
| CN114138046B (en) * | 2021-11-26 | 2024-05-03 | 珠海格力电器股份有限公司 | Sampling circuit calibration control method and system and photovoltaic air conditioner |
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Application publication date: 20120822 |