Method and system for enabling pervasive computing devices to communicate with each other

摘要

The term "pervasive" is applied to devices to which processing and communication capabilities have been added, but which are not considered to be traditional computers, e.g. cellular phones, vending machines, traffic lights, parking meters and the like. Such devices are able to generate requests for data and transmit the requests to other devices. A device which holds the requested data will, on receipt of the request, transmit the data to the requesting device, where the data is extracted and stored. The requesting device may be a digital camera which requests data as to its present location, and it may receive this data from an in-vehicle computing device having a global positioning system (GPS). The types of data exchanged may be classified using a system of code identifiers, such that devices may be programmed to identify transmitted data bearing certain codes which are of interest to the device user.