1927
German engineer Walter Bruch invented the “Fernsehkanera” to monitor the V-2 rocket launch site, considered to be a form of early security cameras.
1940s
Closed-circuit television systems (CCTV) began to be used in the business and government fields, for real-time monitoring and recording of video purposes.
1970s
The advent of portable cameras and video recorders made surveillance systems more flexible and convenient.
From the 1990s to now
the popularity of digital technology has made surveillance systems gradually shift to digital, including the application of new technologies such as webcam (IP camera).
Modern
With the continuous progress of technology, surveillance cameras have high definition, remote access, motion detection, night vision ability and other functions, and are widely used in commercial, public safety, traffic management and other fields.
Overall, with the continuous development of technology, surveillance cameras have evolved from early basic forms to modern high-tech equipment, playing an important role in ensuring safety, preventing crime, and improving efficiency.