Sensors: Make Your Trash Smarter

The first impression of traditional trash cans is that they are dirty and messy, and the cost of managing them is also very high. In recent years, with the massive increase in urban waste, the cost of waste disposal has become even higher. The emergence of smart sensor trash cans will undoubtedly greatly reduce the cost of trash disposal. It can also bring convenience to people.

The new type of smart sensor trash can can also be called a smart trash collection box. It usually uses advanced microcomputer control chips, modern sensor technology, mechanical transmission parts, wireless Internet of Things technology and other new generation high-tech technologies combined with traditional technologies to provide a fast, accurate and convenient waste management system for the society. In general, smart sensor trash cans can be equipped with various sensors such as infrared sensors, ultrasonic sensors, smoke sensors, temperature and humidity sensors, and odor sensors to collect data from the trash can. At the same time, wireless technology is used for real-time monitoring and management, and high-energy compressors, blowers, ozone or negative ion technology are used to pre-process the garbage in the trash can and improve the environment in and around the trash can.

The emergence of modern sensor technology has made trash cans more intelligent and easier to manage. The following briefly introduces some of the performance concept and related sensor technology of the smart sensor trash can.

Ⅰ. Automatic sensing function of sensor trash can:

Traditional trash cans generally require manual or foot stepping, which gives people the impression that they are very dirty. There are so many bacteria on the trash can that everyone is reluctant to touch it. The lid of the smart sensor trash can is opened and closed by the sensor. When you want to throw out the trash, you only need to approach the trash can and the lid will automatically open. After throwing it, it will automatically close again in 3-4 seconds. You don't need to touch the bucket at all. This can completely solve potential safety hazards and effectively prevent the spread of mosquitoes and bacteria. At present, there are three main sensing methods on the market: pyroelectric infrared, infrared pair tube, and microwave induction.

Ⅱ. The sensor trash can has an overflow detection function:

There are public trash cans in every corner of the city, but the level of fullness of each trash can is different, and it is impossible for management to be able to dispose of them in time at all times. Some rubbish bins are overflowing, there are rubbish everywhere, and flies and mosquitoes fly all over the sky. Some have only a small amount of garbage. Sanitation workers and garbage trucks cannot check the condition of every garbage can every day and clean it up in time. That requires a lot of manpower and more money. Smart sensor trash bins can generally monitor the amount of trash in the bin through infrared sensors or ultrasonic sensors. When it is detected that the trash can is almost full, the trash can be compressed by a high-energy compressor. When the garbage is full again, it will automatically connect to the Internet and send the location to the garbage transfer station for people to come and clean up the garbage.

Ⅲ. The sensor trash can has fire-proof, explosion-proof, sterilization and disinfection functions:

1. First of all, the environment inside the barrel is relatively complicated, and there are some flammable materials. Especially in summer, the temperature inside the box is very high. If you don't pay attention to it, some abandoned cigarette butts can easily cause spontaneous combustion of garbage. Mounting temperature sensors and smoke sensors in the trash can can effectively prevent fires. When it is detected that the temperature in the trash can is too high, the exhaust air can be humidified and cooled. When the temperature exceeds a certain set temperature, especially when a lot of smoke is sensed, the fire extinguishing system can be automatically activated and an alarm will be issued to remind relevant personnel to dispose of the garbage. For the household garbage bins, the temperature and humidity sensor can collect indoor temperature and humidity, so that people can keep abreast of the changes in indoor comfort, which is also a good thermometer.

2. Secondly, the internal environment of the trash can is generally harsh and humid, and it is easy to breed various bacteria and germs. The humidity data in the barrel is collected through the humidity sensor. When the humidity is too high, the humidity in the barrel can be adjusted by a fan or dryer. It can also sterilize the barrel through negative ion or ozone technology.

Ⅳ. The sensor trash can has garbage voice guidance and intelligent classification functions:

As far as current technology is concerned, it is impractical to enable intelligent sorting of trash cans. Even with this technology, the cost is very high. However, it is possible to develop a smart sensor trash can sorting system to assist citizens in sorting. Voice smart trash cans can help citizens to classify trash through voice reminders by connecting the trash cans to the smart trash classification system, so that it can be placed accurately.