sensor

  Application of Road Sensors Road sensors play a crucial role in modern transportation systems. They are capable of collecting various data such as traffic flow, vehicle type, speed, and weight, and can also provide real-time information for intelligent transportation systems, thereby enhancing traffic efficiency and safety. Here are some main types of road sensors and their applications: 1. Traffic Flow Sensor Traffic Flow Sensor  is mainly used to count the number and types of vehicles, as well as measure traffic speeds. These sensors can be directly installed in the road, suitable for various different road surface shapes. Their flat structure design makes them have high noise resistance, not affected by road surface bending, adjacent lane signals, and the impact waves of oncoming vehicles. In addition, some sensors are also capable of dynamic weighing (WIM), which is particularly useful for monitoring vehicle weight and overloading situations. 2. Vehicle Sensors Vehicle ...

Overview of Atmospheric Visibility Atmospheric visibility is an important indicator of atmospheric transparency, which refers to the maximum horizontal distance from the ground at which a person with normal vision can see the outline of a target clearly under certain weather conditions. This concept is not only related to the fields of aviation, navigation and land transport, but also has a direct connection with high altitude photography, astronomical observation and military operations. In practice, atmospheric visibility is usually classified into 10 classes to more accurately describe different visibility conditions. Measurement of atmospheric visibility Measuring atmospheric visibility can be done visually or by relying on a variety of special   measuring instruments, such as atmospheric neurotransmitters   and automatic laser visibility meters. With the development of technology, the University of Science and Technology of China (USTC) has developed a digital camera sys...