With the rapid development of the Internet of Things (IoT), we are stepping into an era where everything is connected. The integration of proximity sensors with IoT has become increasingly common, bringing new vitality to our lives and work. This technology not only enhances the intelligence level of devices but also provides us with unprecedented convenience and safety. Proximity sensors are devices used to detect the presence or movement of nearby objects without contact. In the IoT ecosystem, these sensors serve as the “eyes” of smart devices, capable of accurately perceiving the surrounding environment. From automatic doors that open upon someone’s approach to smart lighting systems that adjust based on human activity, from security alarms that trigger when unauthorized individuals are detected to industrial automation production lines that pause when workers get too close—the application potential of proximity sensors in IoT is limitless. In the home context, proximity sensors can make our living spaces smarter. For example, smart mirrors equipped with proximity sensors can automatically light up when users approach; wardrobes with this feature can automatically open when people are nearby. These thoughtful designs not only improve life quality but also help conserve energy, reducing unnecessary electricity consumption by turning off lights or other electrical devices when no one is around. In industrial settings, the combination of proximity sensors and IoT plays an irreplaceable role. In hazardous environments, such as chemical plants or high-temperature workshops, traditional manual operations often pose significant safety risks. By installing proximity sensors, remote monitoring and control of equipment operation can be achieved, greatly enhancing work efficiency while ensuring employee safety. Additionally, in logistics warehouses, these sensors can automatically count goods, reducing human errors and improving material handling efficiency. The integration of proximity sensors and IoT also holds enormous significance in public safety and health management. For instance, in airports or stations, thermal imaging temperature measurement systems combined with proximity sensing technology can quickly screen passengers, effectively preventing the spread of infectious diseases. In elderly care facilities, wearable devices equipped with proximity sensors can monitor the elders’ activity status in real time, promptly issuing alerts in case of emergencies, thereby providing timely assistance and care for those who need it. However, the widespread adoption of this technology also brings new challenges in terms of data security and privacy protection. With the increase in sensor data collection comes the risk of personal information leakage. Therefore, strengthening relevant laws and regulations to ensure user data security while promoting technological innovation is particularly important. The deep integration of proximity sensors and IoT marks a significant step forward in building a smart society. It not only changes our way of life but also drives industrial transformation and upgrading. As research progresses and costs decrease, we have reason to believe that this innovative technology will be more widely applied in various fields, jointly creating a safer, more efficient, and more convenient future world.
