What is the secure Internet of Things?

　　The secure Internet of Things is a comprehensive system that integrates the Internet of Things technology and the concept of security management. The core is to achieve security monitoring, early warning and management of various scenarios through intelligent means. It relies on sensors, big data, artificial intelligence, wireless communications and other technologies to build a wide-coverage and responsive security protection network, aiming to identify risks in advance, reduce the probability of accidents, and provide all-round security protection for urban operations, industrial production, public services and other fields.

　　Core technology support

　　The efficient operation of the secure Internet of Things is inseparable from the synergy of multiple technologies:

　　Perception layer: deploy multi-source high-precision sensors (such as temperature and humidity, vibration, gas, structural stress and other sensors) to collect real-time status data of the monitored objects, such as the structural displacement of bridges and the concentration of toxic gases in chemical plants.

　　Network layer: use wireless communication technologies (such as 4G/5G, LoRa, NB-IoT, etc.) to form a self-organizing network, stably transmit the data collected by sensors to the data center, and ensure real-time information communication.

　　Data layer and application layer: combine edge computing and cloud computing to perform intelligent analysis of massive data. Through embedded AI algorithms, localized rapid warnings are achieved, and then deep mining is carried out with the help of cloud computing platforms to achieve advanced predictions, such as predicting the collapse risk of old buildings in advance.

　　Main application areas

　　The secure Internet of Things covers a wide range of key areas where there are security risks:

　　Urban safety: Real-time monitoring of urban infrastructure such as natural resources (such as geological disaster monitoring), transportation (such as bridge and tunnel structural safety), housing construction, water conservancy, and energy, building a safe and resilient city assessment system, identifying the vulnerabilities of urban systems and making targeted improvements.

　　Industrial production: In manufacturing factories, monitor the operating status of equipment to prevent safety accidents caused by failures; in hazardous chemical warehouses, real-time monitoring of concentration, temperature and other parameters to avoid leakage or explosion.

　　Public services: Involving the safety protection of cultural tourism sites and ancient buildings, by monitoring the flow of people and structural stability, to ensure the safety of tourists and the protection of cultural relics.

　　Security protection focus

　　Due to the high diversity of IoT devices (covering smart sensors, industrial terminals, public facility controllers, etc.) and limited computing and storage capabilities, the protection of secure IoT requires targeted measures:

　　Device and network security: authenticate the device and install authorized software; set up firewalls to filter data packets to prevent malicious attacks; update firmware patches in a timely manner to make up for security vulnerabilities while avoiding excessive bandwidth.

　　Data security: ensure encryption throughout the entire process of data collection, transmission, and storage to prevent information leakage or tampering.

　　Physical security: ensure the physical environment security of IoT devices and communication infrastructure to avoid human damage or accidental damage.

　　Ultimate goal

　　The secure IoT achieves a shift from passive response to active prevention through the closed-loop management of "real-time perception - intelligent analysis - accurate warning - rapid response", and ultimately achieves the goal of comprehensive security perception, intelligent management, and controllable risks, building a solid defense line for safe and stable operation in various fields.