Intelligent vehicle-highway system
US4962457A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1988 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Oct 25, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An intelligent vehicle-highway system utilizes a transmitter installed on the vehicle for communicating with modules having memory elements for storing site-specific information, a receiver for receiving an enabling signal from the transceiver on the vehicle, and a transmitter for making the site-specific information available to the operator of the vehicle. The data storage system is installed in the vicinity of the roadway, such as alongside of the roadway, overhead of the roadway, or preferably embedded in the roadway itself so as to ensure communciation with vehicles within predetermined lanes. In a highly advantageous embodiment, the site-specific data can be changed by reprogramming an erasable memory with a memory programmer, which may be installed on a programming vehicle which is authorized to travel on the roadway for the purpose of reprogramming the data within the data storage systems. Such reprogramming may use access codes which prevent tampering with the stored data. Alternatively, reprogramming of the data storage systems can be performed with the use of local transmitters controlled by a centralized agency. The local transmitters can also communicate directly with …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.