With the improvement of people's living standards, the modernization of home life is an inevitable trend. Almost all of the traditional trash cans have launched their own smart sensor trash cans, which is bound to be a future trend. Intelligent sensor trash can also become the consumption habits of ordinary people. Just like the original energy-saving lamps and water dispensers, it has now become fully popular. Smart sensor trash cans will also become popular in the next few years. The smart trash can is a new type of trash can designed by Japanese inventors (known as Modder FRP on the Internet) combined with somatosensory game technology. The smart trash can is powered by a battery, with wheels underneath the bucket, and built-in software for detection and accurate prediction. At the same time, install Kinect on the wall of the room to observe the size of the entire room and calculate the location of the garbage. This invention can make the trash can in the room no longer "sit in the empty city", but take the initiative to shift and pick up the garbage. Let's take a look at the smart trash can principle. The principle is to use the pyroelectric infrared, infrared tube, microwave induction to automatically open the trash can lid; Compared with the ordinary trash can, there is an electronic part and a mechanical drive part. The electronic part is controlled by an IC. The price of the IC is within the binary, plus a sensor. At present, the best imported sensor in this area is less than five yuan. The mechanical drive section is much simpler, just driving the lid off and on. The program is divided into 3 blocks: the main program is waiting for delay, timing interrupt, and the pyroelectric infrared sensor is interrupted. When a person walks into the detection range of the pyroelectric infrared sensor, the sensor pyroelectric component loses the charge balance when receiving the temperature change of the infrared radiation of the human body, and discharges the charge outward, and converts the signal into electricity through the internal circuit processing of hn911. Flat transition, when a human is detected, provides a low level (falling edge) to the microcontroller, and this signal is used as an external interrupt signal. (At the time of designing this scheme, we also thought of using image processing when detecting, his The advantage is that it is easy to distinguish between the type of garbage and whether it is human, but its disadvantage is that it has large processing information and is greatly affected by the environment, so it gives up; the vibration sensor converts the vibration of the trash can (by object impact) or weight change into level. The signal can be queried by the I/O port MCU; when the PT2262/2272 is a pair of infrared remote control transmitting/receiving chips with address and data encoding functions, the transmitting chip PT2262-IR will be the carrier oscillator, encoder and transmitter. The unit is integrated into one body, and the waste input and the trash can are full into level signals, and the I/O port is monolithic. This signal can be queried; after the initialization and set timing time, the MCU waits for the interrupt signal. When the external interrupt terminal has a signal, the MCU enters the processing interrupt. It is considered that someone comes here and judges whether the I/O signal is queried. Open the trash can cover. When the trash can is not full, the PT2262/2272 has no signal to open the trash can cover (the single-chip control solenoid is energized, the cover is open), and the vibration sensor and the PT2262/2272 signal are combined to determine whether the person is throwing garbage. At the same time, the MCU control voice chip sends some humorous words, prompting everyone to care for the environment, but also bring some happiness to everyone. Just because Shengqun MCU has a very convenient sleep wake-up function, the falling edge of the PA port can be a wake-up of the MCU, and the wake-up command to wake up after wake-up, so no one will throw garbage in the long time, the MCU will automatically remove HN911. The circuit power is turned off, and then the microcontroller enters sleep, thereby greatly reducing energy waste. It has achieved energy saving and environmental protection. When someone comes, the MCU wakes up the MCU through the HN911 circuit, and the MCU turns the circuit that was previously powered off into the normal working state. The main features are as follows: (1) Energy saving and environmental protection. This work has a sleep wake-up function. When no one is going to throw garbage in a long time, the MCU automatically turns off the circuit power supply except the infrared sensor, and then the MCU enters sleep, thereby greatly reducing energy waste; achieving energy saving and environmental protection. When someone comes, the microcontroller is woken up by the circuit part, and the single-chip microcomputer turns the circuit that has previously turned off the power supply into a normal working state. (2) Clean and hygienic. The intelligent trash can conforms to the pursuit of modern society and breaks through the traditional barrier of covering the trash can with hands or feet. Induction and opening of the lid makes people worry less when they lose, and reduces various germs in life. The probability of cross infection. At the same time, it has good sealing performance, no waste and odor overflow, ensuring fresh air around. (3) Entertainment. The voice system of this work will send out some humorous and humorous words according to different situations. At the same time, it also attracts people to consciously throw garbage into the barrel, which can attract children to dump garbage and throw them into the garbage, so that people can not be chaotic. The good habit of throwing garbage makes the environment around us more beautiful. (4) Widely used. This work can be used in a variety of colors, multiple capacities, and a variety of materials to enhance the public and home grades, to meet the humanity and fashion, to create a personality and charm of life; is office, home, public, conference Ideal for use in medical care, etc.
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