CN102231218A - Infrared detection method and infrared detector - Google Patents
Infrared detection method and infrared detector Download PDFInfo
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- CN102231218A CN102231218A CN201110142075XA CN201110142075A CN102231218A CN 102231218 A CN102231218 A CN 102231218A CN 201110142075X A CN201110142075X A CN 201110142075XA CN 201110142075 A CN201110142075 A CN 201110142075A CN 102231218 A CN102231218 A CN 102231218A
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Abstract
The invention provides an infrared detection method and an infrared detector, which are suitable for the field of detection. The method comprises the following steps of: detecting a noise coefficient of a regional environment signal after electrifying and preheating processes are completed; storing the noise coefficient, and then entering an alarm detection mode; and regulating an alarm threshold value according to the noise coefficient. The technical scheme provided by the invention has the advantages of difficult environmental false alarm and more accurate detection.
Description
Technical field
The invention belongs to detection range, relate in particular to a kind of infrared acquisition method and infrared eye.
Background technology
The detection method of infrared eye in the market after preheating finishes, directly enters the warning detection mode in energising, and the easy like this wrong report that causes because of the problem of environment for use generally is called this situation the noise wrong report.Because the actual environment for use in search coverage has nothing in common with each other, so do not having human body in the search coverage activity, it is also inequality that detector receives the noise figure of ambient signal, so just causes wrong report easily.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of infrared acquisition method, is intended to solve the problem that existing technical scheme causes the noise wrong report easily.
The embodiment of the invention is achieved in that a kind of infrared acquisition method, and described method comprises:
After the energising preheating is finished, the noise figure of search coverage ambient signal;
After this noise figure preservation, enter the warning detection mode, adjust alarm threshold value according to this noise figure.
A kind of infrared eye, described infrared eye comprises:
Probe unit is used for after the energising preheating is finished the noise figure of search coverage ambient signal;
Preserve the unit, be used for this noise figure is preserved,
The alarm mode unit is used to enter the warning detection mode, and adjusts alarm threshold value according to this noise figure.
In embodiments of the present invention, after technical scheme provided by the invention receives the noise figure of environment, this noise figure is preserved, adjust alarm threshold value according to this noise figure then, and according to adjusted alarm threshold value warning, owing to considered influence of environmental noise when this alarm threshold value is adjusted, this method is not easy to cause the noise wrong report.
Description of drawings
Fig. 1 is the process flow diagram of a kind of infrared acquisition method of providing of the embodiment of the invention;
Fig. 2 is the structural drawing of the infrared eye that provides of the embodiment of 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.
A kind of infrared acquisition method provided by the invention, this method is finished by infrared eye, and this method comprises the steps: as shown in Figure 1
S11, in energising after preheating finishes, the noise figure of search coverage ambient signal;
S12, this noise figure preserved after, enter the warning detection mode, adjust alarm threshold value according to this noise figure.
Need to prove that said method can also comprise before the S12: when definite this noise figure is in predefined scope, carry out S12.
Need to prove, said method can also comprise after S11: when definite this noise figure exceeds predefined scope, exceed standard to user prompt neighbourhood noise coefficient, after the user can get rid of the interference source of search coverage according to this prompting, search coverage ambient signal once more.
Need to prove, above-mentioned according to this noise figure adjust alarm threshold value concrete mode can for: the alarm threshold value of noise figure and setting is analyzed, is obtained alarm threshold value more accurately.
Need to prove the alarm threshold value of above-mentioned accurate more alarm threshold value=noise figure+setting;
Certainly in actual conditions, also can for: the alarm threshold value of accurate more alarm threshold value=noise figure * experience factor+settings, above-mentioned experience factor are user's coefficient definite voluntarily according to the experience of practical application, for example 0.95,0.88 or 1.02 or the like.
Method provided by the invention is when entering the warning detection mode, adjusted alarm threshold value according to this noise figure, so this alarm threshold value has been considered environmental factor, Effect of Environmental also decreases, be not easy to cause environmental false alarm so this method has, survey advantage more accurately.
The present invention also provides a kind of infrared eye, and this infrared eye comprises as shown in Figure 2:
Preserve unit 22, be used for this noise figure is preserved,
Optionally, above-mentioned infrared eye can also comprise:
Need to prove that the concrete mode that alarm threshold value is adjusted in above-mentioned alarm mode unit 23 can repeat no more referring to the associated description among the method embodiment here.
Warning sniffer provided by the invention is when entering the warning detection mode, adjusted alarm threshold value according to this noise figure, so this alarm threshold value has been considered environmental factor, Effect of Environmental also decreases, be not easy to cause environmental false alarm so this method has, survey advantage more accurately.
Technical scheme provided by the invention has and is not easy to cause environmental false alarm, surveys advantage more accurately.
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 (7)
1. an infrared acquisition method is characterized in that, described method comprises:
After the energising preheating is finished, the noise figure of search coverage ambient signal;
After this noise figure preservation, enter the warning detection mode, adjust alarm threshold value according to this noise figure.
2. method according to claim 1 is characterized in that, described method also comprised before the step that this noise figure is preserved:
Determine that this noise figure is in predefined scope.
3. method according to claim 1 is characterized in that, described method also comprises after the noise figure of search coverage ambient signal:
When definite this noise figure exceeds predefined scope, exceed standard to user prompt neighbourhood noise coefficient.
4. method according to claim 1 is characterized in that, describedly adjusts alarm threshold value according to this noise figure and comprises:
The alarm threshold value of noise figure and setting is analyzed, obtained accurate more alarm threshold value.
5. method according to claim 4 is characterized in that, the alarm threshold value of described accurate more alarm threshold value=noise figure+setting;
Or the alarm threshold value of accurate more alarm threshold value=noise figure * experience factor+setting.
6. an infrared eye is characterized in that, described infrared eye comprises:
Probe unit is used for after the energising preheating is finished the noise figure of search coverage ambient signal;
Preserve the unit, be used for this noise figure is preserved,
The alarm mode unit is used to enter the warning detection mode, and adjusts alarm threshold value according to this noise figure.
7. infrared eye according to claim 6 is characterized in that, described infrared eye also comprises:
Judging unit is used to judge that this noise figure is whether in predefined scope;
Trigger element is used for when judgment unit judges is, triggers and preserves unit and alarm mode cell operation;
Tip element is used for when judgment unit judges denys, and exceeds standard to user prompt neighbourhood noise coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110142075XA CN102231218A (en) | 2011-05-30 | 2011-05-30 | Infrared detection method and infrared detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110142075XA CN102231218A (en) | 2011-05-30 | 2011-05-30 | Infrared detection method and infrared detector |
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| Publication Number | Publication Date |
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| CN102231218A true CN102231218A (en) | 2011-11-02 |
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| CN201110142075XA Pending CN102231218A (en) | 2011-05-30 | 2011-05-30 | Infrared detection method and infrared detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815886A (en) * | 2020-06-16 | 2020-10-23 | 广东齐达科技有限公司 | Control method and device for security antenna device, anti-theft system and storage medium |
Citations (5)
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| US4195234A (en) * | 1978-02-02 | 1980-03-25 | Optical Coating Laboratory, Inc. | Infrared intrusion alarm system with temperature responsive threshold level |
| CN2779384Y (en) * | 2005-01-07 | 2006-05-10 | 上海捷耐瑞智能科技有限公司 | Laser beam smoke detector |
| CN101900835A (en) * | 2009-05-27 | 2010-12-01 | 霍尼韦尔国际公司 | Adaptive microwave security sensor |
| CN101907489A (en) * | 2010-07-28 | 2010-12-08 | 深圳市豪恩安全科技有限公司 | Device, method and equipment for detecting intensity of infrared signal |
| CN101930649A (en) * | 2010-08-20 | 2010-12-29 | 宁波诺可电子科技发展有限公司 | Method for preventing false alarm under severe weather conditions for fiber fence alarm system |
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2011
- 2011-05-30 CN CN201110142075XA patent/CN102231218A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4195234A (en) * | 1978-02-02 | 1980-03-25 | Optical Coating Laboratory, Inc. | Infrared intrusion alarm system with temperature responsive threshold level |
| CN2779384Y (en) * | 2005-01-07 | 2006-05-10 | 上海捷耐瑞智能科技有限公司 | Laser beam smoke detector |
| CN101900835A (en) * | 2009-05-27 | 2010-12-01 | 霍尼韦尔国际公司 | Adaptive microwave security sensor |
| CN101907489A (en) * | 2010-07-28 | 2010-12-08 | 深圳市豪恩安全科技有限公司 | Device, method and equipment for detecting intensity of infrared signal |
| CN101930649A (en) * | 2010-08-20 | 2010-12-29 | 宁波诺可电子科技发展有限公司 | Method for preventing false alarm under severe weather conditions for fiber fence alarm system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815886A (en) * | 2020-06-16 | 2020-10-23 | 广东齐达科技有限公司 | Control method and device for security antenna device, anti-theft system and storage medium |
| CN111815886B (en) * | 2020-06-16 | 2022-02-15 | 广东齐达科技有限公司 | Control method and device for security antenna device, anti-theft system and storage medium |
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Application publication date: 20111102 |