Interactive method for monitoring road traffic, and its onboard apparatus, and system for implementing the method
First Claim
1. An interactive method for monitoring road traffic, comprising the steps of:
- detecting, through a receiver and a processor installed on a vehicle, said processor being coupled to said receiver, the presence of vehicles traveling ahead in the same running direction and their dynamic conditions;
as transmitted in the form of a coded message from each of said preceding vehicles, at defined transmission time windows that are different for each vehicle, within a transmission period comprising a plurality of time windows,detecting through said receiver and said processor, said transmission time windows and their position within said transmission period andtransmitting, through a transmitter installed on the vehicle, and capable of recognizing received messages, a coded message indicating at least the presence of said vehicle and dynamic conditions thereof to following vehicles, traveling in the same running direction, at separate time windows from said detected transmission time windows of the preceding vehicles whose presence has been detected.
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Accused Products
Abstract
An interactive method for monitoring road traffic consisting of detecting, using a short-range receiver installed on a vehicle, the presence of preceding vehicles in the same running direction and their dynamic conditions, as transmitted by the preceding vehicles, in the form of binary coded periodic message at nonoverlapped time windows for each vehicle. The method further consists of transmitting, to the following vehicles using a short-range transmitter installed on the vehicle, a binary coded message indicating the presence of the vehicle and, optionally, dynamic conditions of the preceding vehicles, at time windows non-overlapping the transmission time windows of the preceding vehicles.
65 Citations
22 Claims
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1. An interactive method for monitoring road traffic, comprising the steps of:
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detecting, through a receiver and a processor installed on a vehicle, said processor being coupled to said receiver, the presence of vehicles traveling ahead in the same running direction and their dynamic conditions;
as transmitted in the form of a coded message from each of said preceding vehicles, at defined transmission time windows that are different for each vehicle, within a transmission period comprising a plurality of time windows,detecting through said receiver and said processor, said transmission time windows and their position within said transmission period and transmitting, through a transmitter installed on the vehicle, and capable of recognizing received messages, a coded message indicating at least the presence of said vehicle and dynamic conditions thereof to following vehicles, traveling in the same running direction, at separate time windows from said detected transmission time windows of the preceding vehicles whose presence has been detected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle-mounted apparatus for interactive road traffic monitoring by a vehicle, comprising:
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a receiver, for receiving a plurality of periodic signals being transmitted from one or more preceding vehicles traveling ahead in the same running direction at defined time windows, each of said periodic signals indicating the presence of several preceding vehicles and their dynamic conditions, first comparator means for comparing said plurality of periodic signals with at least one dynamic condition of said vehicle, said comparator having an output coupled to a warning device for its operation; means for processing said plurality of signals to generate a mean value of said dynamic conditions of said preceding vehicles; and a transmitter, synchronized by at least one of said periodic signals received by said receiver, to transmit, at separate time windows from the received time windows of said plurality of received periodic signals, a periodic signal indicating at least one dynamic condition of said vehicle and said mean value of dynamic conditions of said preceding vehicles. - View Dependent Claims (9, 10, 11)
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12. A method of monitoring road traffic by a vehicle, comprising the steps of:
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receiving a coded signal periodically transmitted from a preceding vehicle, traveling ahead in the same running direction, during a defined time window within a time period comprising a plurality of time windows, the coded signal indicating the dynamic conditions of the preceding vehicle; monitoring a dynamic condition of the vehicle and producing a monitored signal; generating a combined signal from the coded signal and the monitored signal; selecting a time window different from said defined time window and within said time period; and transmitting the combined signal to at least one subsequent vehicle traveling in the same running direction during said selected time window. - View Dependent Claims (13, 14, 15)
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16. A vehicle-mounted apparatus for interactive road traffic monitoring comprising:
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a receiver for receiving a plurality of periodic signals being transmitted at defined time windows, each periodic signal indicating a presence of at least one preceding vehicle and dynamic conditions of the at least one preceding vehicle; a processor circuit, coupled to the receiver, for comparing the plurality of periodic signals with at least one dynamic condition of the vehicle and generating a combined value of the dynamic conditions of the at least one preceding vehicle and the at least one dynamic condition of the vehicle; and a transmitter, coupled to the processor circuit and synchronized by at least one of the periodic signals received by the receiver, the transmitter transmitting at separate time windows from the defined time windows of the plurality of received periodic signals, a periodic vehicle signal indicating the at least one dynamic condition of the vehicle and the combined value of the dynamic conditions of the at least one preceding vehicle. - View Dependent Claims (17, 18, 19, 20)
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21. An interactive method for monitoring road traffic, comprising:
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detecting, through a receiver and a processor installed on a vehicle, said processor being coupled to said receiver, the presence of vehicles traveling ahead in the same running direction and their dynamic conditions, as transmitted in the form of a coded message from each of said preceding vehicles, at defined transmission time windows that are different for each vehicle and within a transmission period comprising a plurality of time windows; detecting through said receiver and said processor said transmission time windows and their position within said transmission period; and transmitting through a transmitter that is synchronized by at least one of said coded messages from said preceding vehicles, installed on the vehicle, and capable of recognizing received messages, a coded message indicating at least the presence of said vehicle and dynamic conditions thereof to following vehicles at a time window in said transmission period, said time window separate from said detected transmission time windows of the preceding vehicles whose presence has been detected.
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22. A method of monitoring road traffic by a vehicle, comprising:
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receiving a coded signal transmitted from a preceding vehicle during defined time windows that are located at one or more window positions within a transmission period, the coded signal indicating dynamic conditions of the preceding vehicle; identifying from said coded signal said one or more window positions of said transmission period; selecting a time window within said transmission period and having a window position that is different from said one or more window positions; monitoring a dynamic condition of the vehicle and producing a monitored signal; generating a combined signal from the coded signal and the monitored signal; and transmitting the combined signal to at least one subsequent vehicle during said selected time window.
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Specification