WIRELESS TRAFFIC INFORMATION INDICATING METHOD AND SYSTEM
First Claim
Patent Images
1. A wireless traffic information indicating method comprising the following steps:
- a first vehicle or a front object synchronously and directionally transmitting a first wireless signal for time synchronization and a second wireless signal for distance measurement; and
a second vehicle directionally receiving the first wireless signal and the second wireless signal, and calculating the distance between the second vehicle and the first vehicle or the front object based on the first wireless signal and the second wireless signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A traffic information indicating method, in which: a first vehicle or a front object synchronously transmits two wireless signals directionally. The first wireless signal is for time synchronism and the second wireless signal is for distance measurement. The first and second wireless signals are received directionally by the second vehicle. The distance between the two vehicles or between the front object and the second vehicle is calculated according to the first wireless signal and the second wireless signal. A traffic information indicating system implements the above method.
-
Citations
18 Claims
-
1. A wireless traffic information indicating method comprising the following steps:
-
a first vehicle or a front object synchronously and directionally transmitting a first wireless signal for time synchronization and a second wireless signal for distance measurement; and a second vehicle directionally receiving the first wireless signal and the second wireless signal, and calculating the distance between the second vehicle and the first vehicle or the front object based on the first wireless signal and the second wireless signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A wireless traffic information indicating system characterized in comprising:
-
a wireless transmitting device installed in a traffic signal light or a traffic road sign or a vehicle traveling in front for directionally transmitting digital coded first wireless signal and second wireless signal having different speeds of transmission; and a wireless receiving device installed in a traveling vehicle behind for directionally receiving the first wireless signal and the second wireless signal, interpreting coded information in the received first wireless signal and second wireless signal, and calculating the distance between the traveling vehicle and the traffic light or the traffic road sign or the vehicle traveling in front based on phase time difference of the received first wireless signal and second wireless signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification