Hikvision: Analysis of Coaxial HD Road

Looking at a group of data, in 2014, the market share of HD surveillance has reached 55%, surpassing that of analog cameras accounting for 35%, while digital HD cameras are called transition products, and its share is also close to 20%. There are experts. It is predicted that the new monitorin

Teach you to pull out the tires


The car was running on the road. Occasionally, the owner did not pay attention, and they ran over small iron plates, glass boxes and nails on the road. If you hear metal squeaking noises when the tires and the ground are rubbing during driving, metal foreign objects such as nails may be s