TV programme monitoring for advertising audience research

摘要

The adaptor module (100) has TV cable inputs (15,16) from a video recorder and a TV receiver. There are also PERITEL connections (38,39) from the video and TV. The adaptor module has a TV channel selection detector (10) operated by a controller (24) and storing (23) channel information. An interface module (28) passes collected information along the input voltage cabling (26,27). There is also a presence detector (11), to detect viewers within the field of view and estimate their number and a second detector to sensor the local environment. This information is collected with the other monitored information and passed to a receiver along the voltage cabling.