2200 results about "Collision detection" patented technology

A portable electronic device, like a cellular telephone is capable of detecting collisions between vehicles and notifying the proper authorities. The device includes a microprocessor and memory, in addition to an accelerometer and global positioning systems receiver. The memory includes at least one filter for screening out false positives, which are false collision detections. In one embodiment, the device determines its velocity. It then checks to see if its velocity falls within a range associated with moving vehicles. If so, the device monitors the accelerometer. When acceleration values in excess of a predetermined threshold are detected, the device pauses and again checks its velocity. If the velocity has fallen from the range associated with moving vehicles to a range associated with a vehicle that has sustained a collision, the device notifies emergency personnel that a collision has occurred. Another filter includes an operability check of the keypad, coupled with a notification message that the authorities will be called if the keypad has not been actuated within a predetermined time. Another embodiment includes a detector capable of detecting a vehicular cradle, such that the notification only occurs when high acceleration values are detected in a vehicle.

A method is provided for rapidly identifying potential collision threats between communicating vehicles in a vehicle communication network for actuating a vehicle control action to mitigate potential collisions between the communicating vehicles. Vehicle boundaries and trajectory path boundaries are constructed for the communicating vehicles for efficiently identifying a potential collision. Prioritized assessments are performed to determine which respective boundaries intersect one another. Based on whether respective boundaries that intersect one another will determine if a control vehicle control action is initiated and which control action is imitated. Once the intersecting boundaries are identified, a location of the potential collision can be rapidly identified by a technique that subdivides and regenerates the intersecting trajectory path boundaries of the vehicles. A distance to the potential collision may be determined that is used to further enhance the control action taken for mitigating the potential collision.

A process of determining an imminent-collision between a vehicle and an object, said vehicle having a sensing system for obtaining one or more images representing at least one observed object within a field of detection, said process comprising: (a) obtaining one or more images representing an observed object within said field of detection; and (b) determining that a collision between said vehicle and said observed object is imminent when the ratio of the probability that said observed object is actually within a collision zone to the probability that said observed object is actually within a safe zone is greater than a certain value.

In a portable electronic device (100) having a plurality of near field communication applications stored within a plurality of execution environments, automatic selection of one of the near field communication applications is performed by a protocol discovery manager (319) and an application discovery manager (316). The application discovery manager (316) is disposed within a default execution environment. The protocol discovery manager (319), which operates in a near field communication circuit controller (301), performs application discovery at the mode switch level (321), the collision detection level (322), and the protocol level (323). The application discovery manager (316) performs application discovery at the application level. Where the protocol discovery manager (319) selects an application, it can configure a routing switch (219) to route data to the appropriate execution environment and launches the selected application, where only protocol level of identification is required. Where other levels are required, the protocol discovery manager (319) selects and routes data to the default execution environment containing application discovery manager (316). The application discovery manager (316), upon selecting an application, can either launch the application or forward a message to the appropriate execution environment for further execution as required by the selected application.

A vehicle air bag system is provided with an air bag that inflates and unfolds to cover the entire front surface of a front pillar 3. When it is judged based on the detection operation of a collision detection device 10 that there is a risk of colliding with a pedestrian, a hood pop-up device 11 is actuated and the rear end part of the engine hood 1 moves up, widening the gap between the rear end part and the front windshield 2. Simultaneously, the air bag module 15 is actuated and the air bag 18 expands out from the gap. The air bag inflates and unfolds so as to cover the entire front surface of the front pillar 3 from the base to the upper end thereof.