1996年,一份统计资料引起了我的关注:美国、日本可视门铃家庭普及率为68%;新加坡、香港家庭普及率为53%,而中国大陆连一个生产厂家都没有,家庭使用率几乎是零!可视门铃早晚会象彩电、冰箱、空调一样逐步进入家庭。这份资料像是一针兴奋剂,使我热血沸腾。在没有任何有关可视门铃的样品、资料、图纸的 In 1996, a statistical data caught my attention: in the United States and Japan, the popularity of visual doorbell households is 68%; in Singapore and Hong Kong, the penetration rate of families in Hong Kong is 53%; in mainland China, there is not even one manufacturer, and the rate of household use is almost Is zero! Visual doorbell will sooner or later like color TV, refrigerators, air conditioners, like gradually into the family. This information is like a stimulant, so I am passionate. In the absence of any video doorbell samples, materials, drawings