Security and protection monitoring system and corresponding warning triggering method

A technology of security monitoring and alarm triggering, which is applied to anti-theft alarms, alarms, alarms that rely on interference with short-wavelength radiation, etc., can solve the problems of high probability of false alarms and false alarms, and achieve the goal of reducing the probability of false alarms Effect

Inactive Publication Date: 2014-06-18
BOLY MEDIA COMM SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, cameras that use MMS alarms, because they use a single infrared light detection technology to trigger alarms, are easily disturbed by the external environment and cause false alarms
For example, in summer, when the ambient temperature is at or close to the human body temperature, and when the monitoring area has a special environment such as a vent, there may be a greater probability of false alarms

Method used

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  • Security and protection monitoring system and corresponding warning triggering method
  • Security and protection monitoring system and corresponding warning triggering method
  • Security and protection monitoring system and corresponding warning triggering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An implementation of the alarm trigger method of the security monitoring system of the present invention can be referred to figure 1 , including the steps:

[0017] 101. The first processor obtains an infrared trigger signal generated when the infrared sensor connected to the signal is triggered.

[0018] The so-called infrared sensor refers to a device capable of detecting infrared radiation in a monitoring area, such as a PIR, which can generate an infrared trigger signal when it is triggered by infrared radiation.

[0019] It is easy to understand that, based on different sensor configurations, the generated infrared trigger signal can be a digital signal or an analog signal, which can be directly transmitted to the appropriate interface of the first processor, or can be processed by conventional software / hardware Appropriate interface to the first processor, such as analog / digital conversion, amplification, shaping, filtering, etc.

[0020] 102. The first proces...

Embodiment 2

[0043] Another embodiment of the alarm triggering method of the security monitoring system of the present invention can be referred to figure 2 Compared with Embodiment 1, the main difference of this embodiment is that the first processor mainly performs image difference comparison operations, and the second processor is responsible for processing the trigger signal of the infrared sensor and performing specific alarm operations. The method includes the steps of:

[0044] 201. The second processor acquires an infrared trigger signal generated when the infrared sensor connected to the signal is triggered. For the specific content of this step, refer to the description related to step 101 in Embodiment 1.

[0045] 202. The second processor sends a first signal indicating that the infrared sensor is triggered to the first processor according to the acquired infrared trigger signal. Specifically, the first signal may be in any form that the first processor can understand, suc...

Embodiment 3

[0057] An implementation of the security monitoring system of the present invention can refer to image 3 , the security monitoring system of this embodiment can be used to implement the alarm triggering method involved in Embodiment 1. Structures include:

[0058] Infrared sensor 301, used to detect infrared radiation in the monitoring area, and generate an infrared trigger signal when triggered by infrared radiation;

[0059] The first lens 302 is used to capture images in the monitoring area;

[0060] The first memory 303 is used to store the first background image;

[0061] The first processor 304 is signal-connected with the infrared sensor 301, the first lens 302 and the first memory 303, and is used to run the program to perform the method comprising the following steps: acquiring the infrared trigger signal generated by the infrared sensor 301, and according to the acquired infrared The trigger signal controls the first lens 302 to take the first image, acquires the...

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Abstract

The invention provides a security and protection monitoring system and a corresponding warning triggering method of the system, wherein the method comprises the following steps that a first processor obtains a first signal representing that an infrared sensor is triggered; a first lens is controlled to shoot a first image according to the first signal; a stored first background image is obtained; the differences between the first image and the first background image are compared; if the differences meet a preset condition, first warning operation is triggered. The mode of simultaneously utilizing the infrared sensor detection and the image difference detection is adopted, so the probability of false alarm caused by higher environment temperature can be reduced.

Description

technical field [0001] The invention relates to the technical field of security monitoring, in particular to a security monitoring system with an infrared detection function and an alarm triggering method thereof. Background technique [0002] At present, the existing graphic and image security monitoring products mainly include two types: [0003] A real-time video surveillance product similar to a high-speed dome camera. This type of product is mainly monitored by manual on-duty. It is mostly used in public places to find out whether there is an intruder by observing the video recording in real time. [0004] The other is a camera that uses MMS alarms. The working mechanism of this type of product is mainly to sense whether someone is intruding through an infrared sensor, such as a passive infrared detector (Passive infrared, PIR). The image information is transmitted to the user via a communication network (such as a wireless communication network). Because these produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/196
CPCG06T7/2053G08B29/183G08B13/19602H04N7/18G06T7/20G08B13/19G06T2207/30232G08B13/19695G06T7/254
Inventor 胡笑平沈霞
Owner BOLY MEDIA COMM SHENZHEN
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