The wireless sensor network is considered to be the second largest network after the Internet in the world. With the gradual popularization of wireless sensor networks, more and more fields regard it as one of the basic technologies for future development. Sensor nodes can continuously perform data acquisition, event detection, event identification, position monitoring, and node control. These characteristics and wireless connection methods of sensor nodes make the application of wireless sensor networks very broad, and can be widely used in environmental monitoring and forecasting, health care, smart home, building condition monitoring, complex mechanical monitoring, urban transportation, space exploration, large scale. Workshop and warehouse management, as well as security monitoring in airports and large industrial parks. With the in-depth research and wide application of wireless sensor networks, wireless sensor networks have gradually penetrated into various fields of human life and have received the attention of the industry. Safe and smooth in intelligent transportation Intelligent Transportation System (ITS) is a new type of transportation system developed on the basis of traditional transportation system. It integrates information, communication, control and computer technology and other modern communication technologies into the transportation field, and will be "people-car-road". - The environment is organically combined. Adding a wireless sensor network technology to the existing transportation facilities will fundamentally alleviate the problems of safety, fluency, energy saving and environmental protection that plague modern transportation, and at the same time improve traffic efficiency. Therefore, the application of wireless sensor network technology to intelligent transportation systems has become a research hotspot in recent years. The intelligent transportation system mainly includes the collection of traffic information, the transmission of traffic information, traffic control and induction. The wireless sensor network can provide an effective means for information collection and transmission of intelligent transportation systems to monitor traffic flow and vehicle speed in all directions of roads and intersections. It is mainly composed of subsystems such as information acquisition input, policy control, output execution, data transmission and communication between subsystems. The information acquisition subsystem mainly collects vehicle and road information through sensors, and then the strategy control subsystem calculates the best solution according to the set target and uses the calculation method, and simultaneously outputs control signals to the execution subsystem to guide and control the vehicle. Pass through to achieve the preset goal. Wireless sensor networks can also be used in intelligent transportation for technical applications such as traffic information release, electronic toll collection, vehicle speed measurement, parking management, integrated information service platform, intelligent public transportation and rail transit, traffic guidance systems and integrated information platforms. Have a lot to do in the medical system In recent years, wireless sensor networks have found many applications in medical systems and health care, such as monitoring various physiological data of the human body, tracking and monitoring the actions of doctors and patients in hospitals, and drug management in hospitals. If a special-purpose sensor node, such as a heart rate and blood pressure monitoring device, is installed on an inpatient, the doctor can keep abreast of the condition of the patient being monitored and can quickly rescue if an abnormal condition is found. A study by the University of Rochester shows that these computers can even be used for medical research. Scientists have used wireless sensors to create a “smart medical home,†a five-bedroom apartment home that uses human research projects to test concepts and prototypes. “Smart Healthcare Home†uses dust to measure important characteristics of the occupants (blood pressure, pulse and breathing), sleeping posture, and activity 24 hours a day. The data collected will be used for future medical research. By embedding network sensors in equipment such as shoes, furniture, and household appliances, you can help the elderly, seriously ill, and disabled families. The use of sensor networks can efficiently deliver the necessary information to facilitate care, and can reduce the burden on caregivers and improve the quality of care. Using the sensor network to collect human physiological data for a long time can speed up the process of developing new drugs, and the micro-sensors installed on the monitored objects will not bring too much inconvenience to people's normal life. In addition, it has novel and unique applications in many aspects such as drug management. Promote smarter information appliances The gradual popularization of wireless sensor networks has promoted the rapid development of information appliances and network technologies. The main equipment of home networks has expanded from a single machine to a variety of home appliances. The smart home network control nodes based on wireless sensor networks are home and external networks. The connection between the device and the internal network provides a basic platform for the connection of information appliances and devices. Embedding sensor nodes in home appliances and connecting them to the Internet through a wireless network will provide people with a more comfortable, convenient and more humane smart home environment. The remote monitoring system can be used to remotely control home appliances, and the home security situation can be monitored at any time through image sensing devices. Sensor networks can be used to build smart kindergartens, monitor children's early educational environments, and track children's activity trajectories. The wireless sensor network uses the existing Internet, mobile communication network and telephone network to inform the households of indoor environmental parameters and operating status of home appliances, so that the residents can timely understand the internal situation of the home, and remotely monitor the home appliances to realize the internal and External information transmission. The wireless sensor network enables residents to monitor not only water meters, electricity meters, gas meters, electric water heaters, air conditioners, rice cookers, etc., but also security systems, gas leak alarm systems, and intrusion warning systems for foreigners in any place where they can access the Internet. The home appliance can be remotely controlled through a browser setting command. A wireless sensor network consists of multiple wireless sensor nodes with the same or different functions. A device is monitored to form a wireless sensor network. The gateway is connected to the Internet system and a hybrid star wireless sensor based on a star structure is used. Network structure system model. The sensor node is responsible for data collection and data transfer node data collection in the network, and the module collects indoor environmental data, such as temperature and humidity, and directly or indirectly transmits data to the remote gateway by the communication routing protocol. At present, the domestic and international research on low-power hardware platform design and topology control, network protocol and positioning technology of wireless sensor network nodes. Taking a sensor that detects the intensity of light as an example, a wireless sensor network is implemented to turn off or turn on the indicator light according to the intensity of the light detected by the sensor. In the wireless sensor network, the ordinary node sends the light intensity data collected by it to the network coordinator, and the network coordinator sends the data frame containing the control variable to the node with the indicator light, and can also transmit the light intensity data through the serial port. Give the computer. The change in light intensity signal can be seen by the background software installed on the computer. The collected light intensity data can be changed by covering the light intensity sensor, and the curve decreases when the light intensity is relatively low, and the curve rises. This sensor network integrates embedded technology, sensor technology, and short-range wireless communication technology, and has a wide range of applications. The system does not require changes to the field structure, does not require the support of any fixed network, can be quickly arranged, easily adjusted, and has good maintainability and expandability. Machines For Finishing Banners Machines For Finishing Banners,Welding Shop Banner,Banner Edge Welder,Banner Spot Welder NINGBO ZONGLAN MECHANICAL AND ELECTRICAL EQUIPMENT MANUFACTURE CO., LTD , https://www.zonglaneyelet.com
Wireless sensor network is one of the research hotspots in the current information field, which can be used to collect, process and transmit signals in special environments. Wireless sensor network is a new information acquisition and processing technology, which has been widely used in real life.