| 摘要 |
A distributed monitoring system and a method of using such a system are disclosed for collecting television channel tuning data, household purchase data, VCR channel usage data and the like, on site at a plurality of pre-selected households. The system features a set of spoke meters (110 to 116) in each of the households for monitoring the data, and a hub unit (101) in each of the households for concentrating and transmitting the data in a systematic fashion to a host computer (102) at a central site. |
