CN102928123A - Dual-temperature zone single probe capable of realizing automatic identification and error correction and automatic error correction method thereof - Google Patents
Dual-temperature zone single probe capable of realizing automatic identification and error correction and automatic error correction method thereof Download PDFInfo
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- CN102928123A CN102928123A CN201210427891XA CN201210427891A CN102928123A CN 102928123 A CN102928123 A CN 102928123A CN 201210427891X A CN201210427891X A CN 201210427891XA CN 201210427891 A CN201210427891 A CN 201210427891A CN 102928123 A CN102928123 A CN 102928123A
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Abstract
The invention discloses a dual-temperature zone single probe capable of realizing automatic identification and error correction, which comprises two identical sensors A and B and a fault detection unit for detecting whether the sensors have faults or not, wherein the consistency between the sensor A and the sensor B is less than 0.1 DEG C; and the fault detection unit is connected with the sensor A and the sensor B respectively. The invention also discloses an automatic error correction method of the dual-temperature zone single probe capable of realizing automatic identification and error correction. The dual-temperature zone single probe disclosed by the invention has high reliability, avoids deviation of the temperature requirement of a cold storage warehouse caused by the damage of a single sensor, and prevents the property loss.
Description
Technical field
The present invention relates to a kind of temperature probe, be specifically related to a kind of two warm area list probes that can automatically identify error correction of high reliability and the automatic error correction method of this probe thereof.
Background technology
The temperature probe of at present freezing and refrigeration field use is the thermosensitive resistance type temperature sensor mostly, NTC sensor of a probe the inside encapsulation of this temperature sensor, sensor itself does not have accurate fault detection capability, only provides a resistance value that varies with temperature and change to calculate for Single Chip Microcomputer (SCM) system.
When refrigeration system is worked, the fault such as temperature probe can occur inevitably such as short circuit, opens circuit, temperature drift.When be short-circuited, during open circuit fault, although system can detect fault, system will have to end to relate to system's subfunction of this signal this moment; When system sensor occurrence temperature drifting fault, the generation that traditional sensor can't be known this fault whether.The probability of this temperature sensor ten thousand/damage, with the temperature deviation fault that causes in the freezer unit operation, the temperature requirement that causes freezer occurs departing from and finally causes property loss.
Summary of the invention
Goal of the invention: the objective of the invention is in order to solve the deficiencies in the prior art, two warm area lists probe that the high energy of a kind of reliability can identify error correction automatically and the automatic error correction method of this probe thereof are provided.
Technical scheme: in order to realize above purpose, a kind of two warm area list probes that can automatically identify error correction of the present invention, comprise: two identical sensors: sensors A and sensor B, and the fault detection unit that whether has fault for detection of sensor; The consistance of described sensors A and sensor B is less than 0.1 ℃; Described fault detection unit is connected with sensors A, sensor B respectively.The common port of sensors A described in the present invention and sensor B can link together.
A kind of two warm area lists probe that can automatically identify error correction of the present invention also comprises: display unit, and the temperature value that this display unit read sensor A and sensor B detect, and temperature value demonstrated.A sensor is used for the normal storehouse temperature that detects among the present invention, and another sensor is used for the temperature difference than the compared with normal probe.
The invention also discloses a kind of automatic error correction method that can automatically identify two warm area list probes of error correction, specific as follows:
(1) starts single probe, the single probe of initialization;
(2) sensors A are used for the normal storehouse temperature that detects, and another sensor B is used for the temperature difference than compared with normal probe, and when the temperature difference during less than the critical temperature value set, list is popped one's head in working properly, damages without sensor; When the temperature difference during more than or equal to the critical temperature value set, fault detection unit startup work;
(3) after the fault processing unit work, according to each sensor between one section hour in the rate of curve of resistance-time, judge which is fault sensor in two sensors:
(a) if the sudden change of sensor detected resistance and resistance become very large among sensors A and the sensor B, the AD value can judge then that near maximal value this sensor opens circuit;
(b) if the sudden change of sensor detected resistance and resistance become very little among sensors A and the sensor B, the AD value can judge then that near minimum value this sensor is short-circuited;
(c) if above two kinds of situations all occur among sensors A and the sensor B, and the rapid variation of resistance-vs. temperature of single probe, change in resistance is non-linear more and more serious, thinks the sensor occurrence temperature drifting fault that resistance varying-ratio is larger;
(4) judge fault sensor after, fault detection unit is reported to the police, and points out fault sensor; And normal sensor automatically replaces fault sensor and carries out emergency; Before the temperature difference between sensors A and the sensor B is less than the critical temperature value of setting, with the generation that no longer comes failure judgement according to the variation slope of resistance relative time whether, but take two poor sizes of sensor temperature as judging according to carrying out fault.Before fault recovery, systematic memory fault sensor, fault detection unit are no longer judged fault sensor by the rate of curve size of resistance-time;
(5) change fault sensor, when the temperature difference of sensors A and sensor B during less than the critical temperature value set, the cancellation of reporting to the police.
Beneficial effect: the present invention compared with prior art has the following advantages:
(1) the present invention has adopted two identical sensor for temperature to monitor, and reliability is high, has avoided causing the temperature requirement of freezer to occur departing from because single-sensor damages, and has avoided property loss;
(2) the method for the invention can detection failure sensor and failure judgement type, and simple and fast can place under repair to the sensor that produces fault according to fault type, does not affect the use of another normal sensor simultaneously, and practicality is high;
(3) among the present invention when breaking down sensor, the working sensor that normal sensor substitutes fault also sends warning, maintenance is convenient, understand.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Embodiment
A kind of two warm area list probes that can automatically identify error correction comprise: two identical sensors: sensors A and sensor B, and the fault detection unit that whether has fault for detection of sensor; The consistance of described sensors A and sensor B is less than 0.1 ℃; Described fault detection unit is connected with sensors A, sensor B respectively.The common port of sensors A described in the present embodiment and sensor B can link together; Sensors A is in the front of sensor B.
The present embodiment also discloses the above-mentioned automatic error correction method that can automatically identify two warm area list probes of error correction, and is specific as follows:
(1) starts single probe, the single probe of initialization; The critical temperature value of setting is 1.5 ℃;
(2) sensors A are used for the normal storehouse temperature that detects, and another sensor B is used for the temperature difference than compared with normal probe, and when the temperature difference during less than 1.5 ℃, list is popped one's head in working properly, damages without sensor; When the temperature difference during more than or equal to ± 1.5 ℃, fault detection unit startup work;
(3) after the fault processing unit work, according to each sensor between one section hour in the rate of curve of resistance-time, judge which is fault sensor in two sensors:
(a) if the sudden change of sensor detected resistance and resistance become very large among sensors A and the sensor B, the AD value can judge then that near maximal value this sensor opens circuit;
(b) if the sudden change of sensor detected resistance and resistance become very little among sensors A and the sensor B, the AD value can judge then that near minimum value this sensor is short-circuited;
(c) if above two kinds of situations all occur among sensors A and the sensor B, and the rapid variation of resistance-vs. temperature of single probe, change in resistance is non-linear more and more serious, thinks the sensor occurrence temperature drifting fault that resistance varying-ratio is larger;
(4) judge fault sensor after, fault detection unit is reported to the police, and points out fault sensor; And normal sensor automatically replaces fault sensor and carries out emergency; Before the temperature difference between sensors A and the sensor B is less than 1.5 ℃, with the generation that no longer comes failure judgement according to the variation slope of resistance relative time whether, but take two poor sizes of sensor temperature as judging according to carrying out fault.Before fault recovery, systematic memory fault sensor, fault detection unit are no longer judged fault sensor by the rate of curve size of resistance-time;
(5) change fault sensor, when the temperature difference of sensors A and sensor B during less than 1.5 ℃, the cancellation of reporting to the police.
Claims (4)
1. the two warm area list probes that can automatically identify error correction is characterized in that: comprising: two identical sensors: sensors A and sensor B, and the fault detection unit that whether has fault for detection of sensor; The consistance of described sensors A and sensor B is less than 0.1 ℃; Described fault detection unit is connected with sensors A, sensor B respectively.
2. the two warm area lists probe that can automatically identify error correction according to claim 1 is characterized in that: comprise display unit, and the temperature value that display unit read sensor A and sensor B detect, and temperature value demonstrated.
3. the automatic error correction method that can automatically identify the two warm area lists probe of error correction according to claim 1 is characterized in that: specific as follows:
(1) starts single probe, the single probe of initialization;
(2) sensors A are used for the normal storehouse temperature that detects, and another sensor B is used for the temperature difference than compared with normal probe, and when the temperature difference during less than the critical temperature value set, list is popped one's head in working properly, damages without sensor; When the temperature difference during more than or equal to the critical temperature value set, fault detection unit startup work;
(3) after the fault processing unit work, according to each sensor between one section hour in the rate of curve of resistance-time, judge which is fault sensor in two sensors:
(a) if the sudden change of sensor detected resistance and resistance become very large among sensors A and the sensor B, the AD value can judge then that near maximal value this sensor opens circuit;
(b) if the sudden change of sensor detected resistance and resistance become very little among sensors A and the sensor B, the AD value can judge then that near minimum value this sensor is short-circuited;
(c) if above two kinds of situations all occur among sensors A and the sensor B, and the rapid variation of resistance-vs. temperature of single probe, change in resistance is non-linear more and more serious, thinks the sensor occurrence temperature drifting fault that resistance varying-ratio is larger;
(4) judge fault sensor after, fault detection unit is reported to the police, and points out fault sensor; And normal sensor automatically replaces fault sensor and carries out emergency; Temperature difference between sensors A and sensor B is during less than the critical temperature value set, with the generation that no longer comes failure judgement according to the variation slope of resistance relative time whether, but take two poor sizes of sensor temperature as judging according to carrying out fault.
4. before fault recovery, systematic memory fault sensor, fault detection unit are no longer judged fault sensor by the rate of curve size of resistance-time;
(5) change fault sensor, when the temperature difference of sensors A and sensor B during less than the critical temperature value set, the cancellation of reporting to the police.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210427891XA CN102928123A (en) | 2012-11-01 | 2012-11-01 | Dual-temperature zone single probe capable of realizing automatic identification and error correction and automatic error correction method thereof |
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| CN201210427891XA CN102928123A (en) | 2012-11-01 | 2012-11-01 | Dual-temperature zone single probe capable of realizing automatic identification and error correction and automatic error correction method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824337A (en) * | 2016-03-10 | 2016-08-03 | 珠海格力电器股份有限公司 | Control method and device of electrical equipment |
| CN109387604A (en) * | 2018-09-08 | 2019-02-26 | 上海源安安全科技有限公司 | A kind of gas sensor remote monitoring method and its system |
| CN110440847A (en) * | 2019-08-16 | 2019-11-12 | 山东特检计量检测有限公司 | A kind of on-line metering device and method of automatic judgement misalignment |
| CN110969797A (en) * | 2019-11-14 | 2020-04-07 | 中国航空工业集团公司西安航空计算技术研究所 | Aviation fire alarm monitoring method and circuit |
| CN111721444A (en) * | 2020-05-28 | 2020-09-29 | 上海申矽凌微电子科技有限公司 | Mass production method and system for calibrating temperature sensor chip |
| CN112504715A (en) * | 2020-12-10 | 2021-03-16 | 深圳市道中创新科技有限公司 | Fault information processing method and device, computer equipment and storage medium |
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| US4859076A (en) * | 1987-06-05 | 1989-08-22 | Westinghouse Electric Corp. | Differential temperature sensors |
| CN101855529A (en) * | 2007-06-29 | 2010-10-06 | 康明斯滤清系统知识产权公司 | Sensor rationality diagnostic |
| CN202869689U (en) * | 2012-11-01 | 2013-04-10 | 苏州新亚科技有限公司 | Double-temperature-zone single probe capable of automatically identifying and correcting error |
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| US4532601A (en) * | 1982-08-19 | 1985-07-30 | Westinghouse Electric Corp. | Automatic temperature calibration method and apparatus |
| CN1030479A (en) * | 1987-06-05 | 1989-01-18 | 西屋电气公司 | Be the temperature sensor of the existence that detects water and the instrument system that constitutes by it |
| US4859076A (en) * | 1987-06-05 | 1989-08-22 | Westinghouse Electric Corp. | Differential temperature sensors |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824337A (en) * | 2016-03-10 | 2016-08-03 | 珠海格力电器股份有限公司 | Control method and device of electrical equipment |
| CN105824337B (en) * | 2016-03-10 | 2017-11-21 | 珠海格力电器股份有限公司 | Control method and device of electrical equipment |
| CN109387604A (en) * | 2018-09-08 | 2019-02-26 | 上海源安安全科技有限公司 | A kind of gas sensor remote monitoring method and its system |
| CN110440847A (en) * | 2019-08-16 | 2019-11-12 | 山东特检计量检测有限公司 | A kind of on-line metering device and method of automatic judgement misalignment |
| CN110969797A (en) * | 2019-11-14 | 2020-04-07 | 中国航空工业集团公司西安航空计算技术研究所 | Aviation fire alarm monitoring method and circuit |
| CN111721444A (en) * | 2020-05-28 | 2020-09-29 | 上海申矽凌微电子科技有限公司 | Mass production method and system for calibrating temperature sensor chip |
| CN111721444B (en) * | 2020-05-28 | 2022-07-22 | 上海申矽凌微电子科技有限公司 | Mass production method and system for calibrating temperature sensor chip |
| CN112504715A (en) * | 2020-12-10 | 2021-03-16 | 深圳市道中创新科技有限公司 | Fault information processing method and device, computer equipment and storage medium |
| CN112504715B (en) * | 2020-12-10 | 2023-08-08 | 深圳市道中创新科技有限公司 | Fault information processing method, device, computer equipment and storage medium |
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Application publication date: 20130213 |