The intelligent manhole covers mainly have the following functions: 
Anti-theft: Chips can be installed inside the manhole cover, and when connected to a mobile phone, it can achieve the alarm function. If the manhole cover is moved or opened, it will send a signal to the mobile phone, thereby promptly triggering an alarm.
Anti-fall: The manhole cover can be equipped with a distance sensor. Once the manhole cover falls off, the distance sensor will respond and send a signal to the mobile phone in time to prevent people or vehicles from getting injured due to accidental contact with the manhole cover.
Anti-intrusion: If heavy rain or water accumulation occurs near the manhole cover, the manhole cover will automatically open to prevent pedestrians or vehicles from being submerged by the rain or water.
Anti-slip: The manhole cover can be equipped with a position sensor. Once the manhole cover slips, the position sensor will respond and send a signal to the mobile phone to promptly handle the problem.
Anti-sagging: If the road surface where the manhole cover is located suffers severe sagging, the manhole cover will open due to the inability to withstand the pressure of the road surface, thus avoiding injuries to people or vehicles.
Smart lighting: LED lights can be installed on the manhole cover. At night, when pedestrians pass by, they can provide lighting to ensure the safety of pedestrians.
Anti-odor: The manhole cover can be equipped with a microprocessor. It can automatically adjust the opening state of the manhole cover according to the surrounding environmental temperature and humidity to ensure that the manhole opening does not emit an unpleasant smell. 
In addition, intelligent manhole covers can be equipped with functions such as anti-penetration, anti-corrosion and waterproofing. Depending on different usage scenarios and requirements, various types of intelligent manhole covers can be selected.