Do it yourself smart home: intelligent air conditioning control

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In summer, when the weather is very hot, blowing the air conditioner all night often makes the whole person uncomfortable , I'm tired in the morning , Can not achieve the effect of easy sleep . The air conditioner will still feel cold after blowing for a long time , The timing function cannot fully meet the requirements , I woke up in the middle of the night and turned on and off , It's too painful to turn it off , So I decided to make an automatic air conditioning controller by myself .

The core function of the controller is ： When the room temperature reaches 33 degree , Automatically turn on the air conditioner to cool to 27 degree , The room temperature gradually drops , When they arrive in 28 When , Turn off the air conditioner , Room temperature rises again , So circular . Winter will take the opposite strategy , When the room temperature reaches 3 degree , Automatically turn on the air conditioner for heating 20 degree . All parameters can be adjusted according to their own needs .

Controller logic can be extended to other remote controllers , Like the TV set , Fan , Smart lights . Watch it automatically on Saturday night 「 Happy camp 」, Turn on the fan when the temperature is not very high . It can be equipped with a voice control center , You can realize a primary smart home system . When home appliances have been formed , There is no need to replace it with smart appliances , You can get through the addiction of smart home .

The design principle of smart home system is not complicated , Mainly sensors , Signal transmission between processor and electrical appliance . It's the same as chatting on wechat , All data transmission . The difference is that the chat between hardware is more primitive , It involves the processing of binary and electrical signals .

Back to the design of air conditioner remote controller , The thermometer sends the collected temperature data to the processor at regular intervals , The processor judges the temperature , If it is higher than 33 degree , Just tell the air conditioner to turn on . After the temperature decreases , The processor recognizes that the temperature has reached 28 degree , Tell the air conditioner to turn off .

When the number of electrical appliances that need to be controlled increases , The process is similar , But different processors may also communicate with each other , Make some common decisions .

If it's just a simple implementation , It's not that difficult , Therefore, all kinds of small Internet companies and traditional household appliance enterprises can get involved in the smart home industry . But if we want to achieve a reasonable and easy-to-use level, we need to work hard , The development of an algorithm can save a lot of costs , And the usability is greatly improved , This is also the existing smart home system is not easy to use , Reasons for staying in the toy stage .

Therefore, the materials that need to be prepared to realize the simplest intelligent air conditioning controller are ： Power Supply 1 individual , thermometer 1 individual , Several wires are used for data transmission , processor 1 individual , Infrared remote control module sent by user instructions 1 individual . If the air conditioner is not infrared controlled , Bluetooth or wifi control , You need to change to the corresponding module .

All the accessories of this model are ready-made , It hasn't been designed yet , Processing and grinding . Just put it in a small carton , If you have time, you can design a cool shape . The cost in 30 yuan , It is acceptable for self-made .