Intersection Drive Control Using Repeated Traffic Signal Recognition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle control systems fail to adequately consider signal information changes at intersections, leading to insufficient reliability and safety in determining collision possibilities and providing warnings or controls.
Innovation Solution
A vehicle drive control device that acquires and analyzes signal recognition information multiple times over a predetermined period, combined with other vehicle recognition, to determine collision possibilities and provide appropriate warnings or controls based on signal state determinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal information is acquired only once or sporadically, then the system response is faster and simpler, but the reliability and accuracy of signal state determination deteriorates
Solution Approach 1:
The system performs preliminary signal information acquisition multiple times over a predetermined time period before making collision determination. This preliminary repeated acquisition ensures the signal state is reliably established before critical collision risk assessment, resolving the contradiction by preparing accurate signal state data in advance rather than relying on single-point measurements.
Solution Approach 2:
The system uses feedback from multiple signal information acquisitions to confirm signal state consistency. By comparing signal information acquired at different time points, the system verifies the stability and reliability of the signal state determination, thereby improving reliability without requiring excessively frequent single-point measurements.
2Reliability
If signal information is acquired frequently multiple times, then the reliability and safety of signal state determination is improved, but the system complexity and processing load increases
Solution Approach 1:
The system performs preliminary signal information acquisition and validation before the critical collision determination step. By establishing signal state reliability in advance through multiple acquisitions, the actual collision determination process can proceed more efficiently with already-validated data, reducing the processing burden during critical moments.
Solution Approach 2:
The system applies partial action by acquiring signal information multiple times only when needed for reliable determination, rather than continuously at maximum frequency. The predetermined time period allows for sufficient sampling without excessive processing, balancing reliability improvement with acceptable system complexity.
3Measurement precision
If multiple signal recognition acquisitions are performed over predetermined time, then the accuracy of signal state determination is improved, but the response time for collision warning and control may be delayed
Solution Approach 1:
The system performs signal information acquisition as a preliminary step before critical collision determination. By establishing the signal state in advance through multiple acquisitions, the system prepares accurate baseline data that can be quickly referenced during emergency situations, reducing the time penalty of repeated measurements when rapid response is needed.
Solution Approach 2:
The system dynamically adjusts the acquisition process by setting a predetermined time period that balances measurement accuracy with response time requirements. The multiple acquisitions are performed within this optimized time window, ensuring sufficient precision while maintaining acceptable response speed for collision warnings and controls.
Data Source
AI summary
Provided is a vehicle drive control device capable of appropriately determining a signal state of a traffic signal and, in a case where there is a collision possibility with another object, suitably determining a warning to an own vehicle driver and/or vehicle control of the own vehicle in consideration of a signal information determination result. A vehicle drive control device 100 includes a signal state determination unit 104 that acquires, a plurality of times over a predetermined time, signal recognition information recognized by a signal information recognition unit 101 and determines a state of a signal based on the acquired signal recognition information, and a collision determination unit 107 that determines a possibility of collision between an own vehicle 10 and an other vehicle 20 based on information on the other vehicle 20 around the own vehicle recognized by an other vehicle recognition unit 102. When determining that there is a possibility of collision between the own vehicle 10 and the other vehicle 20, the collision determination unit 107 performs a warning to the driver of the own vehicle 10 and/or vehicle control of the own vehicle 10 based on a signal state determination result of the signal state determination unit 104.