Traffic information system passive transponder, e.g. for carrying road sign information in a format that can be recognized by a vehicle transponder has an attachment element whose design varies dependent on its information content

摘要

Passive transponder for a traffic information system in which traffic data are transmitted between stationary passive transponders and active transponders carried by motor vehicles. The passive transponders have attachment or mounting elements that permit their secure and simple mounting. Transponders with different information content can have correspondingly different attachment elements. Provision of a power source ensures effective data transfer even in poor weather conditions.