【See Suzhou special article reporter/Lu Xinyi】
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"When you go out, it lights up. You see the lights are on..."
There is a 74-year-old grandfather zhang Huaizhi in Meihua Sancun, although he has long retired, but he has not been idle at home for a moment. Grandpa Zhang is obsessed with research and invention, and they are all small objects that are closely related to life.
On the wall in front of Grandpa Zhang's house hangs a reminder device of his own invention. The appearance is small, very smart, as long as you go out, it will automatically issue a beep prompt sound, reminding you to see if you have forgotten to bring a mobile phone and key in front of the door, and the gas and electrical appliances at home are turned off.
"It uses infrared sensing technology, and even if the lights are turned off here, it will ring at night when you pass by."
Grandpa Zhang said that he has been dealing with circuit boards and parts for most of his life, and he can't stay idle after retirement, making inventions every day, and the inspiration comes from life. For an invention, he was able to study it for several days. "I've tried all kinds of things, and I can only do it after I come to a conclusion, and I've tried a lot of things."
In fact, Grandpa Zhang was particularly interested in invention when he was young, he entered the factory after graduating from high school, in order to improve the technical level, after 20 years he re-studied, admitted to the university, specializing in automatic control.
In the past ten years since his retirement, Grandpa Zhang has invented many small objects such as automatic disconnection of battery car charging, automatic reminder of electrical operation, etc.
For Grandpa Zhang's hobbies, his wife Ye Apo also expressed respect. Grandpa Zhang said that he hopes to use his inventions to improve his life, especially to help the needs of some elderly people.
Editor-in-charge: Deng Benqi