CN102280002A - Dual-mode alarm device and method capable of decreasing false alarm rate - Google Patents

Dual-mode alarm device and method capable of decreasing false alarm rate Download PDF

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Publication number
CN102280002A
CN102280002A CN2011101751292A CN201110175129A CN102280002A CN 102280002 A CN102280002 A CN 102280002A CN 2011101751292 A CN2011101751292 A CN 2011101751292A CN 201110175129 A CN201110175129 A CN 201110175129A CN 102280002 A CN102280002 A CN 102280002A
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CN
China
Prior art keywords
image
microprocessor
signal
human
module
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CN2011101751292A
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Chinese (zh)
Inventor
叶先武
林鸿程
连陈琳
蔡晓峰
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厦门青年网络通讯股份有限公司
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Priority to CN2011101751292A priority Critical patent/CN102280002A/en
Publication of CN102280002A publication Critical patent/CN102280002A/en

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Abstract

The invention discloses a dual-mode alarm device and method capable of decreasing a false alarm rate. The dual-mode alarm device comprises a microprocessor, an infrared sensor, a signal processing circuit and an imaging sensor, wherein the microprocessor comprises a detection module, an image comparison module and an image storage module, the infrared sensor acquires a human body signal and transmits the human body signal to the signal processing circuit, the processed human body signal is transmitted to the detection module of the microprocessor, and the detection module judges whether a human exists according to the human body signal; the image storage modules prestores an original image when no human exists, the image sensor acquires an image and transmits the current image to the image comparison module, and the image comparison module compares the current image with the original image and judges whether a human exists according to changes in the images; and the microprocessor affirms alarm information effective and stores the current image acquired by the image sensor when both the detection module and the image comparison module judge that a human exists within a certain time interval. According to the dual-mode alarm device and method disclosed by the invention, the false alarm rate and simplifying parts can be maximally decreased.

Description

A kind of bimodulus warning device and method that reduces rate of false alarm

Technical field

The present invention relates to the warning device field, relate to a kind of bimodulus warning device and method thereof that reduces rate of false alarm in particular.

Background technology

Along with the progress of society and improving constantly of people's living standard, security protection equipment has become the indispensable equipment that people guarantee personal safety as well as the property safety; Tradition security protection equipment generally all is that the sensing element by the outer end obtains on-site parameters and flows to security protection equipment, and this security protection equipment is judged the back and carried out corresponding actions.But since sensing element its be the sensing and detecting type element, it unavoidably can occur judging by accident and the detection signal that must make mistake, and then causes the malfunction of security protection equipment thus, brings certain puzzlement for people's life.

At present in order to reduce rate of false alarm, such as aspect the infrared sensor, the general means that adopt two mirror or three mirror, two mirror specifically are with " two infrared sensors are reported to the police simultaneously and just thought effective warning " this condition, as judging two mirror type infrared sensor apparatus theoretical foundation of whether effectively reporting to the police, thereby greatly reduce the rate of false alarm of the type sensor under various environment; Three mirror specifically are with " two infrared sensor add a ultrasonic sensor is reported to the police simultaneously just think effective warning " this condition, as judging whether effectively theoretical foundation of three mirror type infrared sensor apparatus warning, greatly reduce the rate of false alarm of the type sensor under various environment.

But, the means of two mirror or three mirror in the prior art, still there is following shortcoming at least in it:

One, two infrared sensors are to obtain different detection signals by being arranged on diverse location in two mirror or three mirror, it can produce different signals between the two in order to allow on the one hand, its position that is provided with to both limits comparatively strict, so reduced the adjustable of installation site, two infrared sensors are owing to be the detector of same nature on the other hand, so when certain undesired signal duration or semi-invariant acquired a certain degree, the probability that both report by mistake simultaneously was very high;

Two, after security protection equipment is judged situation, general all need present image taken and store or directly send to the user in the mode of multimedia message, so need to be provided with camera assembly inevitably, so make the front end of whole security protection equipment have defectives such as element is too much.

In view of this, the inventor has this case to produce at the above-mentioned defective further investigation of existing security protection equipment then.

Summary of the invention

The object of the present invention is to provide a kind of bimodulus warning device that reduces rate of false alarm, still have bigger erroneous judgement situation and the too much defective of anterior member to solve prior art.

In order to reach above-mentioned purpose, solution of the present invention is:

A kind of bimodulus warning device that reduces rate of false alarm, wherein, comprise microprocessor, infrared sensor, signal processing circuit and imageing sensor, this microprocessor has detection module, image comparing module and image memory module, this infrared sensor obtains human body signal and is delivered to signal processing circuit, human body signal after this signal processing circuit is handled human body signal and will be handled is delivered to the detection module of microprocessor, and this detection module has then judged whether the people according to this human body signal; Original image when this image memory module prestores nobody, this imageing sensor obtain image and present image are transferred to the image comparing module, and this image comparing module compares present image and original image and judged whether the people according to image change; This microprocessor all assert have man-hour to assert the present image that warning message is effective and the memory image sensor obtains at detection module and image comparing module in the certain hour of interval.

Further, this microprocessor also has the gsm module that the present image through stores processor can be sent to policeman person, and this gsm module also is connected with antenna element.

Further, described certain hour is 3s.

Another object of the present invention is to provide a kind of bimodulus alarm method that reduces rate of false alarm, it comprises the steps:

1., each self-operating of imageing sensor and infrared sensor has also judged whether the people respectively:

A, imageing sensor obtain present image, and transfer to the image comparing module of microprocessor, and this image comparing module is transferred the original image in the image memory module and made it and the present image contrast, does not repeat this step if image changes; Be judged as the people if image changes, and informed microprocessor;

B, infrared sensor obtain human body signal, and via the detection module that transfers to microprocessor after the signal processing circuit, this detection module has judged whether the people according to human body signal; If judge nobody, then repeated execution of steps; If be judged as the people, then inform microprocessor;

2., microprocessor compares notifying time, if microprocessor receives simultaneously within a certain period of time and informs, judge that then alerting signal is effective, and the present image that imageing sensor obtains stored.

Further, this bimodulus alarm method also comprises:

3., when alerting signal is judged as when effective, this microprocessor is sent to policeman person by its built-in gsm module with the photo current through storing.

Further, described certain hour is 3s.

After adopting said structure, a kind of bimodulus warning device and the method thereof that reduces rate of false alarm that the present invention relates to, it obtains photo current by infrared sensor human body signal and imageing sensor respectively and judges in contrast then, promptly adopted two different decision mechanisms under two kinds of complete different judgment models, made that thus the associating judgment mechanism can reduce rate of false alarm to greatest extent; In addition, the present image that this imageing sensor obtains can also be stored and consult or send required as the later stage, and it can reduce the number of anterior member in the security protection equipment greatly thus, thereby plays the effect of simplifying parts.

Description of drawings

Fig. 1 the present invention relates to a kind of structured flowchart that reduces the bimodulus warning device preferred embodiment of rate of false alarm.

Among the figure:

Bimodulus warning device 100

Microprocessor 1 detection module 11

Image comparing module 12 image memory modules 13

Gsm module 14 antenna elements 15

Infrared sensor 2 signal processing circuits 3

Imageing sensor 4.

Embodiment

In order further to explain technical scheme of the present invention, the present invention will be described in detail below by specific embodiment.

As shown in Figure 1, it is a kind of bimodulus warning device 100 that reduces rate of false alarm that the present invention relates to, comprise microprocessor 1, infrared sensor 2, signal processing circuit 3 and imageing sensor 4, this infrared sensor 2 links to each other with signal processing circuit 3, and this signal processing circuit 3 all links to each other with microprocessor 1 with imageing sensor 4.

This microprocessor 1 specifically comprises detection module 11, image comparing module 12 and the image memory module 13 that is built in the microprocessor 1 again.

This infrared sensor 2 obtains human body signal and is delivered to signal processing circuit 3, human body signal after 3 pairs of human body signals of this signal processing circuit are handled and will be handled is delivered to the detection module 11 of microprocessor 1, and 11 of this detection modules have judged whether the people according to this human body signal.

In general original image when this image memory module 13 prestores nobody, this original image are after whole bimodulus warning device 100 installations, and the mode of being obtained image scene by installation personnel during to 100 initialization of bimodulus warning device automatically forms; When concrete work, this imageing sensor 4 obtains image and present image is transferred to image comparing module 12, and this image comparing module 12 compares present image and original image, and has judged whether the people according to image change; If detection module 11 and image comparing module 12 are all assert in interval certain hour (can adopt 3s when specifically implementing) people is arranged, 1 of this microprocessor assert that warning message is effective, and the present image that imageing sensor 4 is obtained stores.Preferably, this microprocessor 1 also has gsm module 14, and this gsm module 14 then also is connected with antenna element 15, and when assert that warning message is effective, this gsm module 14 will be sent to policeman person through the present image of stores processor by antenna element 15.

In order to allow the bimodulus warning device 100 that the present invention relates to can be by clearer open, the present invention also provides a kind of bimodulus alarm method that reduces rate of false alarm, and this method comprises the steps:

1., imageing sensor 4 has also judged whether the people respectively with infrared sensor 2 each self-operating:

1. concrete this step comprises two each self-operatings step by step, is steps A and step B:

A, imageing sensor 4 obtain present image, and transfer to the image comparing module 12 of microprocessor 1, this image comparing module 12 is transferred the original image in the image memory module 13 and is made it and contrasts with present image, repeat this step if image does not change, promptly imageing sensor 4 continues to obtain present image; Be judged as the people if image changes, and informed microprocessor 1;

B, infrared sensor 2 obtain human body signal, and via the detection module 11 that transfers to microprocessor 1 after the signal processing circuit 3, this detection module 11 has judged whether the people according to human body signal; If judge nobody, then repeated execution of steps; If be judged as the people, then inform microprocessor 1;

2., 1 pair of notifying time of microprocessor compares, if microprocessor 1 receives simultaneously in certain hour (this time is preferably 3s) and informs, judge that then alerting signal is effective, and the present image that imageing sensor 4 is obtained stores.

Preferably, this bimodulus alarm method also comprises:

3., if alerting signal is judged as effectively, 1 of this microprocessor is sent to policeman person by its built-in gsm module 14 with the photo current through storing.

Like this, a kind of bimodulus warning device 100 and the method thereof that reduces rate of false alarm that the present invention relates to, it obtains photo current by infrared sensor 2 human body signals and imageing sensor 4 respectively and judges in contrast that then so the present invention has following beneficial effect at least:

One, the present invention has adopted two different decision mechanisms under two kinds of complete different judgment models, makes that thus the associating judgment mechanism can reduce rate of false alarm to greatest extent;

Two, the present image that obtains of this imageing sensor 4 can also be stored and consults or send required as the later stage, and it can reduce the number of anterior member in the security protection equipment greatly thus, thereby plays the effect of simplifying parts.

The foregoing description and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation or modification of doing.

Claims (6)

1. bimodulus warning device that can reduce rate of false alarm, it is characterized in that, comprise microprocessor, infrared sensor, signal processing circuit and imageing sensor, this microprocessor has detection module, image comparing module and image memory module, this infrared sensor obtains human body signal and is delivered to signal processing circuit, human body signal after this signal processing circuit is handled human body signal and will be handled is delivered to the detection module of microprocessor, and this detection module has then judged whether the people according to this human body signal; Original image when this image memory module prestores nobody, this imageing sensor obtain image and present image are transferred to the image comparing module, and this image comparing module compares present image and original image and judged whether the people according to image change; This microprocessor all assert have man-hour to assert the present image that warning message is effective and the memory image sensor obtains at detection module and image comparing module in the certain hour of interval.
2. a kind of bimodulus warning device that reduces rate of false alarm as claimed in claim 1 is characterized in that this microprocessor also has the gsm module that the present image through stores processor can be sent to policeman person, and this gsm module also is connected with antenna element.
3. a kind of bimodulus warning device that reduces rate of false alarm as claimed in claim 1 is characterized in that described certain hour is 3s.
4. the bimodulus alarm method that can reduce rate of false alarm is characterized in that, comprises the steps:
1., each self-operating of imageing sensor and infrared sensor has also judged whether the people respectively:
A, imageing sensor obtain present image, and transfer to the image comparing module of microprocessor, and this image comparing module is transferred the original image in the image memory module and made it and the present image contrast, does not repeat this step if image changes; Be judged as the people if image changes, and informed microprocessor;
B, infrared sensor obtain human body signal, and via the detection module that transfers to microprocessor after the signal processing circuit, this detection module has judged whether the people according to human body signal; If judge nobody, then repeated execution of steps; If be judged as the people, then inform microprocessor;
2., microprocessor compares notifying time, if microprocessor receives simultaneously within a certain period of time and informs, judge that then alerting signal is effective, and the present image that imageing sensor obtains stored.
5. a kind of bimodulus alarm method that reduces rate of false alarm as claimed in claim 4 is characterized in that this bimodulus alarm method also comprises:
3., when alerting signal is judged as when effective, this microprocessor is sent to policeman person by its built-in gsm module with the photo current through storing.
6. a kind of bimodulus alarm method that reduces rate of false alarm as claimed in claim 4 is characterized in that described certain hour is 3s.
CN2011101751292A 2011-06-27 2011-06-27 Dual-mode alarm device and method capable of decreasing false alarm rate CN102280002A (en)

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CN104167072A (en) * 2014-07-21 2014-11-26 苏州昊枫环保科技有限公司 Door and window monitoring system with infrared detection and image comparison function
CN104424745A (en) * 2013-09-09 2015-03-18 杭州海康威视数字技术股份有限公司 Intelligent alarm method and intelligent alarm device
CN105334543A (en) * 2014-05-26 2016-02-17 北京维森科技有限公司 Human existence detection method and apparatus based on infrared trigger image comparison
CN106338925A (en) * 2016-11-01 2017-01-18 成都宏软科技实业有限公司 Smart home system
CN106415679A (en) * 2014-06-09 2017-02-15 朴相来 Image heat ray device and intrusion detection system using same
CN106504452A (en) * 2016-11-07 2017-03-15 惠州经济职业技术学院 The system that a kind of detection breaks in

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103871186A (en) * 2012-12-17 2014-06-18 博立码杰通讯(深圳)有限公司 Security and protection monitoring system and corresponding warning triggering method
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CN104424745A (en) * 2013-09-09 2015-03-18 杭州海康威视数字技术股份有限公司 Intelligent alarm method and intelligent alarm device
CN105334543A (en) * 2014-05-26 2016-02-17 北京维森科技有限公司 Human existence detection method and apparatus based on infrared trigger image comparison
CN106415679A (en) * 2014-06-09 2017-02-15 朴相来 Image heat ray device and intrusion detection system using same
CN104167072A (en) * 2014-07-21 2014-11-26 苏州昊枫环保科技有限公司 Door and window monitoring system with infrared detection and image comparison function
CN106338925A (en) * 2016-11-01 2017-01-18 成都宏软科技实业有限公司 Smart home system
CN106504452A (en) * 2016-11-07 2017-03-15 惠州经济职业技术学院 The system that a kind of detection breaks in

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Application publication date: 20111214