wireless sensorThe application fields of the internet are very broad, and it can be applied to military, precision agriculture, environmental monitoring and forecasting, healthcare, smart homes, building status monitoring, complex machinery monitoring, and urban intelligence transportationIn the fields of space exploration, management of large workshops and warehouses, as well as safety monitoring of airports and large industrial parks. With the in-depth research and widespread application of sensor networks, they will gradually penetrate into various fields of human life.

 

(1) Application in the field of military applications

 

       wireless sensorThe network has the characteristics of rapid deployment, self-organization, strong concealment, and high fault tolerance, making it very suitable for applications in the military field. Wireless sensor networks can achieve functions such as monitoring enemy forces and equipment, real-time monitoring of the battlefield, target localization, battlefield evaluation, monitoring and searching for nuclear and biochemical attacks. By directly broadcasting sensor nodes into enemy positions through airplanes or shells, or deploying sensor networks in public isolation zones, it is possible to accurately collect battlefield information in a very concealed and close range manner, and quickly obtain information that is beneficial for combat. A sensor network is composed of a large number of randomly distributed nodes, and even if some of the sensor nodes are destroyed by the enemy, the remaining nodes can still form a self-organizing network. The use of biological and chemical sensors can accurately detect the composition of biochemical weapons and provide timely information, which is conducive to correct prevention and effective counterattacks. Sensor networks have become an essential part of military systems and have received widespread attention from military forces around the world.

 

(2) Application in environmental monitoring and forecasting

  

In terms of environmental monitoring and forecasting, wireless sensor networks can be used to monitor crop irrigation, soil air conditions, the environment and migration status of livestock and poultry, wireless soil ecology, large-scale surface monitoring, etc. They can be used for planetary exploration, meteorological and geographical research, flood monitoring, etc. It is also possible to study population complexity by tracking birds, small animals, and insects. Based on wireless sensor networks, multiple sensors can be used to monitor rainfall, river water levels, and soil moisture, and predict flash floods to describe ecological diversity, thereby conducting ecological monitoring of animal habitats.

 

(3) Application in the medical system and healthcare

 

Wireless sensor networks will also have many applications in medical systems and healthcare, 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 specialized sensor nodes, such as heart rate and blood pressure monitoring devices, are installed on hospitalized patients, doctors can monitor the patient's condition at any time and quickly rescue them when abnormal situations are detected.

 

(4) Application in Information Home Appliances

 

Embedding sensor nodes in household appliances and furniture and connecting them with the Internet through wireless network will provide people with a more comfortable, convenient and humanized smart home environment. The use of remote monitoring systems can achieve remote control of household appliances, and can also monitor home security situations at any time through image sensing devices. The use of sensor networks can establish intelligent kindergartens, monitor children's early education environment, and track their activity trajectories.

 

(5) Application in Building Condition Monitoring

 

Building status monitoring refers to the use of sensor networks to monitor the safety status of buildings. Due to the continuous repair of buildings, there may be some safety hazards. Although occasional small vibrations in the Earth's crust may not cause visible damage, they may create potential cracks in the pillars that could lead to building collapse in the next earthquake. Traditional methods of inspection often require buildings to be closed for several months, while smart buildings equipped with sensor networks can inform management departments of their status information and automatically perform a series of self-healing tasks according to priority. In the future, various skyscrapers may be equipped with such devices, so that buildings can automatically tell people whether they are currently safe, how stable they are, and other information.

 

(6) Application in Space Exploration

 

By using spacecraft to scatter some sensor nodes on extraterrestrial bodies, it is possible to monitor the surface of the planet for a long time. This method has low cost, small node size, and can communicate with each other as well as ground stations. The Sensor Webs project developed by NASA's JPL laboratory is a technological preparation for future Mars exploration. The system was tested and improved in the environmental monitoring project around the Florida Aerospace Center.

 

(7) Application in special environments

 

In addition, there are also some important application areas for sensor networks, such as oil pipelines that usually pass through vast and uninhabited areas, and pipeline monitoring has always been a challenge. Traditional manual inspections are almost impossible. However, existing monitoring products are often complex and expensive. By deploying wireless sensor networks on pipelines, real-time monitoring of pipeline conditions can be achieved, and any damage or malicious destruction can be monitored in real-time in the control center. Researchers at the University of California, Berkeley believe that if California applies this technology to electricityBy monitoring the usage status, the power control center can save 700-800 million US dollars annually.

 

Since the 21st century, sensor networks have attracted great attention from academia, military, and industry. The United States and Europe have successively launched many research projects related to wireless sensor networks. Wireless sensor network is a multidisciplinary research field involving sensor technology, computer network technology, wireless transmission technology, embedded computing technology, distributed information processing technology, microelectronics manufacturing technology, software programming technology, etc. It has distinct characteristics of interdisciplinary research.

------------Source: China Automation Network