CN101750438A - Detector alarm method aiming to ambient temperature, device and gas detector - Google Patents

Detector alarm method aiming to ambient temperature, device and gas detector Download PDF

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Publication number
CN101750438A
CN101750438A CN200810241397A CN200810241397A CN101750438A CN 101750438 A CN101750438 A CN 101750438A CN 200810241397 A CN200810241397 A CN 200810241397A CN 200810241397 A CN200810241397 A CN 200810241397A CN 101750438 A CN101750438 A CN 101750438A
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China
Prior art keywords
temperature
detector
threshold values
compensation curve
temperature compensation
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CN200810241397A
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Chinese (zh)
Inventor
张国元
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Shenzhen Longhorn Security and Technology Co Ltd
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Shenzhen Longhorn Security and Technology Co Ltd
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Priority to CN200810241397A priority Critical patent/CN101750438A/en
Publication of CN101750438A publication Critical patent/CN101750438A/en
Pending legal-status Critical Current

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Abstract

The invention is suitable for the technical field of security protection and provides a detector alarm method aiming to ambient temperature, a device and a gas detector. The method comprises the following steps: obtaining the temperature of current environment, and modifying the alarm monitoring threshold value of the detector according to the temperature of current environment and the temperature compensation curve of a system; and carrying out alarm monitoring for the gas of the current environment according to the modified alarm monitoring threshold value. The method uses the alarm monitoring threshold value of the detector to dynamically modify the alarm monitoring threshold value of the detector according to the temperature of current environment and carries out alarm monitoring for the gas of the current environment according to the modified monitoring threshold value, so the method effectively avoids the occurrence of false alarm, no alarm and missing alarm caused by temperature change, increases the rate of effective early warning of fuel gas leakage accidents, and avoids potential safety problems.

Description

A kind of detector alarm method, device and gas detector at environment temperature
Technical field
The invention belongs to technical field of security and protection, relate in particular to a kind of detector alarm method, device and gas detector at environment temperature.
Background technology
Along with improving constantly of people's awareness of safety, the user is also more and more higher to the requirement of security product.
In the gas-monitoring field, combustible gas probe is because of its technology maturation, with low cost, stable performance, and is subjected to users' welcome deeply.
Combustible gas probe generally adopts semiconductor gas sensor, and such gas sensor is made up of heating electrode, output electrode and the sensitive material body that is coated on therebetween.
Heating electrode is a combination spun gold winding, has extremely low conductivity.Coated the drawing again thereon of gas sensitive constituted the monitoring electrode.The heating of this gas sensitive can with inflammable gas molecule generation chemical reaction, thereby change the conductivity of gas sensitive.Therefore, add electric field, can obtain an output voltage with the proportional relation of gas concentration in output electrode at gas sensitive body two ends.This voltage can be realized the purpose of reporting to the police through sending into observation circuit after subsequent treatment.Certainly, detector must preestablish a suitable alert detecting threshold values, judges whether to report to the police according to this alert detecting threshold values.
Yet, gas sensitive stability is not very desirable, be easy to change with the variation of ambient temperature, the variation of environment temperature to the influence of detector alarm monitoring threshold values greatly, and then be easy to cause detector to report by mistake, the generation of the situation of not reporting and failing to report brings great hidden danger for user's use.
Summary of the invention
The object of the present invention is to provide a kind of detector alarm method, all in solving prior art, because the variation of environment temperature at environment temperature, make detector very easily produce wrong report, the problem of not reporting and failing to report, effective early warning rate of raising gas leakage accident is eliminated exhausted potential safety hazard.
The embodiment of the invention is achieved in that a kind of detector alarm method at environment temperature, and described method comprises the steps:
Obtain the temperature of current environment;
Alert detecting threshold values according to the temperature compensation curve correction detector of current environmental temperature and system;
According to revised alert detecting threshold values the gas of current environment is carried out alert detecting.
Another purpose of the embodiment of the invention is to provide a kind of detector alarm device at environment temperature, and described device comprises:
The environment temperature acquisition module is used to obtain the temperature of current environment;
Monitoring threshold values correcting module is used for the alert detecting threshold values according to the temperature compensation curve correction detector of current environmental temperature and system;
The alert detecting module is used for according to revised alert detecting threshold values the gas of current environment being carried out alert detecting.
Another purpose of the embodiment of the invention is to provide a kind of gas detector, and described detector comprises the detector alarm device at environment temperature that the embodiment of the invention provides.
The embodiment of the invention is according to the temperature of current environment, the serviceability temperature compensated curve is revised dynamically to the alert detecting threshold values of detector, carry out the monitoring of gas according to revised monitoring threshold values, avoid wrong report effectively, not reporting and fail to report situation produces, improve effective early warning rate of gas leakage accident, stopped potential safety hazard.
Description of drawings
Fig. 1 is the realization flow figure of the detector alarm method at environment temperature provided by the invention;
Fig. 2 is the structural drawing of the detector alarm device at environment temperature provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention is according to the temperature of current environment, and the serviceability temperature compensated curve is revised dynamically to the alert detecting threshold values of detector, carries out the monitoring of gas according to revised monitoring threshold values.
Fig. 1 shows the realization flow of the detector alarm method at environment temperature provided by the invention, and details are as follows.
In step S101, the storing temperature compensated curve.
In storage during described temperature compensation curve, will with gas sensor after by response voltage point stepping corresponding many temperature compensation curve store, wherein, temperature compensation curve of every grade of correspondence.
The embodiment of the invention is selected planar-type semiconductor gas sensor advanced in the industry for use, sensor is carried out stepping by the response voltage point, for example 2.0~2.4v is the A shelves, 2.4~2.8v is the B shelves, 2.8~3.2v is the C shelves, can certainly divide more shelves, surveys and draws out each grade temperature characteristics and response characteristic by a large amount of stability tests,, and then obtain many temperature compensation curve.Like this, every corresponding shelves of temperature compensation curve.
In step S102, obtain the temperature of current environment.
In step S103, according to the temperature compensation curve correction detector alarm monitoring threshold values of current environmental temperature and system.
In specific implementation process, at first judge the stepping of current gas sensor correspondence, call corresponding temperature compensation curve according to the stepping of current gas sensor correspondence, according to the described temperature compensation curve correction detector alarm monitoring threshold values that calls.
In step S104, the gas of current environment is monitored according to revised alert detecting threshold values.
The ultimate principle of combustible gas probe is the extraneous gas concentration information of induction, converts it into the correspondent voltage signal amplitude, and relatively realizes the purpose of reporting to the police with alarm default alert detecting threshold values under nominal concentration.
The embodiment of the invention is dynamically revised gas sensor alert detecting threshold values by serviceability temperature compensated curve real-time and effective, reduces effectively or avoids wrong report, and the situation not reporting and fail to report produces, and has stopped potential safety hazard as much as possible.
The embodiment of the invention is a kind of long-term qualitative or have and dynamically revise gas sensor temperature drift technology quantitatively.Vary with temperature the method for making qualitative or quantitative temperature compensation for a long time for sensor, change for local environment and maybe can suppress or directly provide relevant information.
The embodiment of the invention also provides a kind of detector alarm device at environment temperature, sees also Fig. 2, and this device comprises temperature compensation curve memory module 21, environment temperature acquisition module 22 monitoring threshold values correcting module 23 and alert detecting modules 24.
Temperature compensation curve memory module 21 storing temperature compensated curves.
Temperature compensation curve memory module 21 will with gas sensor after by response voltage point stepping corresponding many temperature compensation curve store, wherein, temperature compensation curve of every grade of correspondence.
Environment temperature acquisition module 22 obtains the temperature of current environment.
Monitoring threshold values correcting module 23 is according to the alert detecting threshold values of the temperature compensation curve correction detector of current environmental temperature and system.
Described monitoring threshold values correcting module 23 specifically comprises the corresponding stepping judge module 231 of sensor, temperature compensation curve calling module 232 and alert detecting threshold values correcting module 233.
The corresponding stepping judge module 231 of sensor is judged the stepping of current gas sensor correspondence;
Temperature compensation curve calling module 232 calls corresponding temperature compensation curve according to the stepping of current gas sensor correspondence;
Alert detecting threshold values correcting module 233 is according to the alert detecting threshold values of the described temperature compensation curve correction detector that calls.
Alert detecting module 24 is monitored the gas of current environment according to revised alert detecting threshold values.
The embodiment of the invention also provides a kind of gas detector, this gas detector comprises the detector alarm device at environment temperature that the embodiment of the invention provides, in view of above existing, repeat no more about this detailed description at the detector alarm device of environment temperature herein.
The embodiment of the invention is according to the temperature of current environment, the serviceability temperature compensated curve is revised dynamically to the alert detecting threshold values of detector, carry out the monitoring of gas according to revised monitoring threshold values, avoid wrong report effectively, not reporting and fail to report situation produces, improve effective early warning rate of gas leakage accident, the stifled potential safety hazard of having stopped.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. the detector alarm method at environment temperature is characterized in that described method comprises the steps:
Obtain the temperature of current environment;
Alert detecting threshold values according to the temperature compensation curve correction detector of current environmental temperature and system;
According to revised alert detecting threshold values the gas of current environment is carried out alert detecting.
2. the detector alarm method at environment temperature as claimed in claim 1 is characterized in that, and is further comprising the steps of before the step of the alert detecting threshold values of described temperature compensation curve correction detector according to current environmental temperature and system:
Storing temperature compensated curve in advance.
3. the detector alarm method at environment temperature as claimed in claim 2 is characterized in that, the step of the described compensated curve of storing temperature in advance is specially:
Will with gas sensor after by response voltage point stepping corresponding many temperature compensation curve store, wherein, temperature compensation curve of every grade of correspondence.
4. the detector alarm method at environment temperature as claimed in claim 3 is characterized in that, specifically comprises according to the step of the alert detecting threshold values of the temperature compensation curve correction detector of current environmental temperature and system:
Judge the stepping of current gas sensor correspondence;
Stepping according to current gas sensor correspondence calls corresponding temperature compensation curve;
Alert detecting threshold values according to the described temperature compensation curve correction detector that calls.
5. detector alarm device at environment temperature is characterized in that described device comprises:
The environment temperature acquisition module is used to obtain the temperature of current environment;
Monitoring threshold values correcting module is used for the alert detecting threshold values of the temperature compensation curve correction detector of the current environmental temperature obtained according to described environment temperature acquisition module and system;
The alert detecting module is used for according to the revised alert detecting threshold values of described monitoring threshold values correcting module current environment gas being carried out alert detecting.
6. the detector alarm device at environment temperature as claimed in claim 5 is characterized in that described device also comprises:
The temperature compensation curve memory module is used for the storing temperature compensated curve.
7. the detector alarm device at environment temperature as claimed in claim 6, it is characterized in that, described temperature compensation curve memory module specifically be used for with gas sensor after by response voltage point stepping corresponding many temperature compensation curve store, wherein, temperature compensation curve of every grade of correspondence.
8. the detector alarm device at environment temperature as claimed in claim 7 is characterized in that, described monitoring threshold values correcting module specifically comprises:
The corresponding stepping judge module of sensor is used to judge the stepping of current gas sensor correspondence;
The temperature compensation curve calling module, the stepping that is used for the current gas sensor correspondence judged according to the corresponding stepping judge module of described sensor calls corresponding temperature compensation curve;
Alert detecting threshold values correcting module is used for the alert detecting threshold values of the temperature compensation curve correction detector that calls according to described temperature compensation curve calling module.
9. a gas detector is characterized in that, described detector comprises each described detector alarm device at environment temperature of claim 5 to 8.
CN200810241397A 2008-12-22 2008-12-22 Detector alarm method aiming to ambient temperature, device and gas detector Pending CN101750438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810241397A CN101750438A (en) 2008-12-22 2008-12-22 Detector alarm method aiming to ambient temperature, device and gas detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810241397A CN101750438A (en) 2008-12-22 2008-12-22 Detector alarm method aiming to ambient temperature, device and gas detector

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CN101750438A true CN101750438A (en) 2010-06-23

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865641A (en) * 2016-05-13 2016-08-17 成都易思科科技有限公司 Environment temperature detection method
CN105973483A (en) * 2016-05-13 2016-09-28 成都易思科科技有限公司 Alarm detection method
CN107332917A (en) * 2017-07-07 2017-11-07 华燕妮 Underground pipe gallery space environment collecting method and system with breakdown judge
CN109029576A (en) * 2018-07-31 2018-12-18 珠海格力电器股份有限公司 A kind of method and system detecting environment value
US10423456B2 (en) 2014-07-31 2019-09-24 Hewlett Packard Enterprise Development Lp Dynamic adjustment of resource utilization thresholds
CN110325848A (en) * 2017-03-03 2019-10-11 Lg电子株式会社 Double-heater gas sensor module
CN113358284A (en) * 2021-08-11 2021-09-07 成都千嘉科技有限公司 Gas leakage detection method and system based on MEMS chip detector
CN113960256A (en) * 2021-10-21 2022-01-21 上海朝辉压力仪器有限公司 Temperature compensation method for water content instrument

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10423456B2 (en) 2014-07-31 2019-09-24 Hewlett Packard Enterprise Development Lp Dynamic adjustment of resource utilization thresholds
CN105865641A (en) * 2016-05-13 2016-08-17 成都易思科科技有限公司 Environment temperature detection method
CN105973483A (en) * 2016-05-13 2016-09-28 成都易思科科技有限公司 Alarm detection method
CN110325848A (en) * 2017-03-03 2019-10-11 Lg电子株式会社 Double-heater gas sensor module
CN110325848B (en) * 2017-03-03 2022-05-31 Lg电子株式会社 Dual heater gas sensor module
US11442034B2 (en) 2017-03-03 2022-09-13 Lg Electronics Inc. Dual heater gas sensor module
CN107332917A (en) * 2017-07-07 2017-11-07 华燕妮 Underground pipe gallery space environment collecting method and system with breakdown judge
CN107332917B (en) * 2017-07-07 2020-11-06 东阳市琰安建筑工程有限公司 Underground pipe gallery space environment data acquisition method and system with fault judgment function
CN109029576A (en) * 2018-07-31 2018-12-18 珠海格力电器股份有限公司 A kind of method and system detecting environment value
CN113358284A (en) * 2021-08-11 2021-09-07 成都千嘉科技有限公司 Gas leakage detection method and system based on MEMS chip detector
CN113960256A (en) * 2021-10-21 2022-01-21 上海朝辉压力仪器有限公司 Temperature compensation method for water content instrument
CN113960256B (en) * 2021-10-21 2023-11-21 上海朝辉压力仪器有限公司 Temperature compensation method of water meter

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Application publication date: 20100623