The Study Of Human Body Detection Identification And Localization Based On WSN

The existing security alarm system's limitation are as follows:First, the misinformation caused by the natural environment influence; Second, is unable to recognize the identify of the target,Third, it is unable to carry on the pinpointing and the track; Fourth, the building time is too long, the volume of the monitoring equipment is too big, the cost is too much, the temporary building is too difficult ,and so on. Now we can solve the problems from four aspects: First, uses the multi-warning survey and the microprocessor to raise the survey level; Second, using long-distance range must contacts the identification technology; Third, use locates the technology wireless; Fourth, take short-distance, low-power, low-cost wireless sensor network as infrastructure system.The wireless sensor network is in monitors in the region by the deployment the massive miniature sensor node more than one which forms through the wireless communication to jump from the organization network system, its goal is the cooperation sensation, gathering and the processing network covers in the region to monitor the object the information, gives the viewer concurrently.Is current internationally is subject to the front hot spot research area which the attention, the knowledge integrate highly. In the military national defense, the industry and agriculture, the urban management, the biological medical service, the environmental monitoring, the emergency disaster relief, against fear counter-terrorism, the risk area remote control and so on many important domains to have the latent use value, had already caused many national academic circle and the industrial world takes seriously, was considered that has one of huge influence technical to the 21st century.The Zigbee technology is one kind of emerging short distance wireless communication technology. The Zigbee technological development will be having profound and the vital significance to the wireless sensor network's promotion and the use.The human body detector is the peaceful against alarm system's input section, motion which or other movement installment is uses for surveys when intruder invasion to occur.At present, detector's malpractice which uses in the peaceful against alarm system, its survey way is mainly surveys the environment physical quantity and the condition change, this survey way from does not have the recognition spotting ability essentially. Therefore, the peaceful against alarm system is triggered because of certain accident's situation or the environmental factor influence, will thus occur reports to the police by mistake. Therefore, the peaceful against alarm system's human body detector has used many survey Yuan, multi-technical compound survey as well as intellectualized methods and so on data analysis, caused detector's performance and the function like this truly had the very big enhancement, also reduced has reported to the police by mistake.In the life and production management a very important matter, for ease of manages the people individual, the vehicles, the cargo has carried on the serial number, this has had the ID card number, the bankcard number, the car license number, bar code and so on. The people used the bar code to read the code, equipment and so on swipe card machine read these serial numbers the computer, carried on digitized processing to enhance the management the efficiency. The radio frequency recognition technology (RFID) is works as previous faults contact type automatic identification technology hot spot. However, regarding the automobile, the container and so on large-scale mobilized strong object, the RFID technology still had many problems, specially the read-write is away from the question, the read-write system work flexible question, more information storages and function expansion question and so on. Was not only effective based on the wireless sensor network's identification technology and the low cost has solved, in puzzle existing RFID long-range target recognition and management many questions, moreover also greatly expanded the status key-card application scope.Wireless communication technology mature and development, has led the emerging wireless service appearance, more and more applications need the automatic localization service. The localization technology is also the majority wireless sensor network application foundation, the localization mechanism and the algorithm including two parts: Node own localization and the external object localization, the former is the latter's foundation.In the wireless sensor network, the positional information moves very important to outside sensor's monitor. The event occurs the position or the gain information's node position is the important information which in the sensor node monitor information must contain, because does not have the positional information monitor news often not in the least the meaning. Therefore, specific event's position or the determination gain news's node position is one of wireless sensor network most basic functions, is playing the crucial role to the wireless sensor network application's validity. Therefore, in the wireless sensor network research area, the localization technology is taken one of important support technologies, has made many progresses, this aspect's experts proposed aims at the localization question the solution and the algorithm, but the algorithm mostly does not have the versatility, each algorithm respectively has the advantages, when application different opportunity and situation has certain limitation. The wireless sensor network localization method people use frequently based on the range finder (Range-Based) and (Range-Free) the taxonomic approach do not carry on the classification based on the range finder. The wireless sensor network localization algorithm has such three characteristics: From organization sense, toughness and energy conservation. After recent years's endeavor, the domestic and foreign scholars have made the very big progress in the wireless sensor network localization algorithm's research, but has some questions to urgently await to be solved, for example: The more precise range finder methods, the large-scale sensor network, the node localization brings the error which exists in the localization process accumulate the correspondence expenses which and the node computation load question, to move sensor node localization algorithm research and so on.According to the tradition alarm system existence's limitation, this article has designed one kind based on the wireless sensor network human body survey, the identification and the localization system - intelligence supervisory system. The system by the traditional infrared induction, the microwave survey and the status identification equipment, the localization system is composed together, the identification technology, the wireless localization technology and the traditional invasion survey technology union, the signal which examines in the same time section differentiates the illegal invasion through the analysis and enters legitimately, and carries on the pinpointing to the personnel. May establish the different warning level, to invades the personnel who according to the rank system monitors the region to carry on the warning. When some people enter the infrared detection region, the system will unify through the identification technology and the traditional burglar alarm, automatic diagnosis and in record monitor scope personnel status. If examines the identification card which the staff carry not to conform to the warning level, the system will record the personnel to monitor the region in the system to enter the time, the position and the card number information, and reports to the police. If examines the identification card which the staff carry to conform to the warning level, the system will record the personnel to monitor the region in the system to enter the time, the position and the card number information, but does not report to the police. The staff may in monitor in the region to carry on the normal work. This equipment can realize 24 hour monitoring, but does not interfere with the normal work, enhanced alarm system's intellectualized degree greatly, also causes the related routine work flow not to disrupt.The system is composed of five parts, respectively is: Fixed induction node, motion induction node, correspondence base depot, control center, status key-card. the article in view of based on the wireless sensor network's human body survey, the identification and the localization system, the use wireless dragon 2431 localization modules and the SS-101 infrared module has built based on under the ZigBee agreement wireless sensor network human body survey, the identification and localization system's experiment environment. The experiment divides into the wireless sensor network experiment, the human body survey experiment, the identification experiment, the localization experiment, as well as system jointing shake down testing experiment. The experimental result has confirmed system's feasibility basically, has built the solid foundation for the next step systematic research and the development.