Design of smart home security system based on wireless sensor network

Abstract

Disclosed is a design of a smart home security system based on a wireless sensor network. The system comprises a home gateway and the wireless sensor network, and the wireless sensor network is mainly composed of sensor nodes, a plurality of router nodes, a coordinator node and a security execution mechanism; the coordinator node is connected with the router nodes, the router nodes are connected with the sensor nodes, and the sensor nodes are connected with the security execution mechanism; the coordinator node is in signal connection with the home gateway; the security execution mechanism is located at the lowest layer, controlled by the sensor nodes and responsible for solving various security problems; the sensor nodes are responsible for collecting and transmitting security sensor data and controlling the action of the security execution mechanism; the coordinator node is located at the top layer of the wireless sensor network and is responsible for the establishment and management of the whole network; the home gateway is a monitoring center of the whole home network and can be used for observing the running conditions of the whole network and alarm signals in real time and interacting with a remote client side through the network.

Description

technical field [0001] The invention relates to the field of smart home, in particular to a design of a smart home security system based on a wireless sensor network. Background technique [0002] The United States first began to conduct research in the field of smart home and designed and exhibited the first smart building in 1984, which opened up a precedent in the field of smart home, and then all economically developed countries have proposed their own smart home design. Among them, Germany, South Korea, Japan, Singapore and other countries have developed rapidly and have a high degree of popularity. After the "911" terrorist incident, the vigorous development of the global security industry has promoted the development of the entire smart home security industry. Smart security systems have quickly entered people's lives. Major security companies around the world have also launched their own advanced security products. Among them, Honeywell, which has always been in the...

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Problems solved by technology

[0005] Although my country's home security products began to enter the market 10 years ago, and the price of the security alarm host has been as low as several hundred yuan, it is still unable to open up this market with huge potential. There are four main reasons: one is the system False alarms are the most important reason why the security system cannot enter ordinary homes. The average user cannot accept a false alarm within 3 months, but it is really very difficult for an electronic product to achieve no false alarms. The innovation of security technology is needed; the second is that it is inconvenient to disarm the security system. If there are people in the home, some security systems do not need to be turned on to prevent false alarms, so it is necessary to selectively disarm. To disarm, once the password is entered incorrectly, the system will cause false alarms; third, most ordinary families in our country do not have access control systems, and it is not difficult to use a master key to open ordinary mechanical locks, so thieves can invade the home and destroy the alarm. Fourth, in order to make up for the defects of false alarms, it is necessary to install video surveillance and image acquisition remote transmission systems, but the cost is high and the transmission speed of pictures is slow

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