Dynamic Cellular and DSRC Network Switching for Traffic Signal Data
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Solution Overview
Problem
Current communication networks, such as cellular and DSRC, face challenges in reliably and timely transmitting traffic signal and intersection information to mobile platforms due to latency issues, limited range, and bandwidth constraints, especially in dense traffic situations or near intersections.
Innovation Solution
A method that selectively switches between cellular and DSRC networks based on the mobile platform's proximity to intersections, maintaining connections with the most reliable network to ensure timely and efficient information delivery, using a cellular network for longer range and DSRC for reduced latency when near intersections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If cellular network is used to transmit traffic signal information, then the transmission range is extended, but the latency increases
Solution Approach 1:
The system dynamically switches between cellular and DSRC networks based on the mobile platform's proximity to intersections. When approaching an intersection, the system transitions from cellular to DSRC network to reduce latency for time-sensitive traffic signal information, while maintaining longer-range coverage capability through cellular network when farther away.
2Loss of time
If DSRC network is used to transmit traffic signal information, then the latency is reduced, but the transmission range is limited
Solution Approach 1:
The system dynamically switches between cellular and DSRC networks based on the mobile platform's proximity to intersections. When approaching an intersection, the system transitions from cellular to DSRC network to reduce latency for time-sensitive traffic signal information, while maintaining longer-range coverage capability through cellular network when farther away.
3Quantity of substance
If DSRC network is used to transmit traffic signal information, then the bandwidth capacity is reduced, but the range is shortened
Solution Approach 1:
The system dynamically switches between cellular and DSRC networks based on the mobile platform's proximity to intersections. When approaching an intersection, the system transitions from cellular to DSRC network to reduce latency for time-sensitive traffic signal information, while maintaining longer-range coverage capability through cellular network when farther away.
4Quantity of substance
If cellular network is used to transmit traffic signal information, then the bandwidth capacity is increased, but the latency increases
Solution Approach 1:
The system dynamically switches between cellular and DSRC networks based on the mobile platform's proximity to intersections. When approaching an intersection, the system transitions from cellular to DSRC network to reduce latency for time-sensitive traffic signal information, while maintaining longer-range coverage capability through cellular network when farther away.
Data Source
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AI summary
A method, apparatus and computer program product are provided to selectively utilize one or more networks in order to reliably communicate the information regarding one or more traffic signals and one or more intersections controlled by respective traffic signals. In the context of a method, the method includes communicating with a first network in order to receive information with a mobile platform regarding one or more traffic signals and information regarding one or more intersections. At least one traffic signal is associated with a respective intersection. The method also includes identifying a first switching condition and communicating with a second network, different than the first network, in order to receive the information regarding the one or more traffic signals and the information regarding the one or more intersections following identification of the first switching condition.