摘要:
Device, system and method, in a vehicle communication system using a first protocol, of implementing a gateway using a distinct second protocol. Embodiments include a first protocol transmitting in a government set vehicle safety band, and a second protocol in the set of: WiFi, Bluetooth, cellular phone and cellular data. An embodiment uses a validity-testing module to prevent insecure messages on the second protocol from interfering with the first protocol. Both one-way and two-way inter-protocol message transfers are described. Embodiments use the gateway to communicate from a vehicle using the first protocol to pedestrians, bicyclists, and equipped animals using the second protocol. Embodiments use a computed and transmitted risk-of-collision value. Embodiments include a driver or operator warning responsive to the transmitted risk value. Embodiments include computation of likely future position.
摘要:
Device, system and method, in a vehicle communication system, of securely storing safety-related messages. Embodiments include both digital signing and digital encryption such that (i) stored message validity is assured; and (ii) only qualified or pre-selected recipients are able to decrypt the message. Embodiments include storing environmental information geographically related to a safety event. Embodiments include a plurality of vehicles within wireless communication range receiving a network warning message and then securely storing related information in response to the warning message. Embodiments include measuring time-of-transit of messages and using this measured time to triangulate position of a transmit source. This information may be transmitted or stored. Embodiments include forwarding of network warning messages. Algorithms are described to identify spoofed messages.
摘要:
Device, system and method, in a vehicle communication system, to transmit wirelessly the position, heading and speed of a vehicle or other moving object. In a key embodiment the vehicle is other than the transmitting vehicle. Some embodiment use local sensors on a first vehicle, such as cameras, sonar, radar or LIDAR to identify the relative position, heading and speed of a second vehicle relative to the first, transmitting, vehicle. An embodiment uses the location of the vehicle whose information is being transmitted as the identification of the same vehicle. Embodiments also receive these messages. Embodiments use this information as warning and safety information to avoid or minimize vehicle collisions. A unique feature of some embodiments is that the messages are free of IP and MAC addresses.
摘要:
Device, system and method, in a vehicle communication system, to transmit wirelessly a message comprising the position, heading and speed of a vehicle or other moving object, wherein the transmission is repeated at regular intervals in a temporarily fixed time slot within a predetermined basic time interval. In a key embodiment the message duration is equal to or less than a predetermined time slot duration. Embodiments use generally the same time slot in a contiguous sequence of basic time intervals. Algorithms are described to resolve wireless interference within a time slot. Embodiments divide the basic time interval in multiple durations, “class regions,” for different message classes. Embodiments use different wireless bandwidth allocation algorithms for the class regions.
摘要:
Device, system and method, in a vehicle communication system, of transmitting a risk value in a message, wherein the risk value identifies quantitatively a risk of vehicle collision. Embodiments determine risk value by combining sub-risk values wherein sub-risks comprise: (i) vehicle behavior; (ii) weather and road conditions; (iii) current traffic; and (iv) location history. Embodiments include driver warnings responsive to the risk value in a received message. Embodiments include a collision type in a message. Embodiments include unique features of: risk is applicable to receiving vehicles; risk is applicable to a geographical region; computation and storage of location histories; messages free of IP and MAC addresses; haptic devices used for driver warning.
摘要:
Device, system and method of implementing a wireless vehicle-to-vehicle anti-collision system. Details of message formats are described, particularly efficient formats using flags and compressed data, expressing distances, both in the horizontal and vertical directions. Details of protocols are described. Details of encoding locations, headings and speed are described. In one embodiment messages are free of IP addresses and MAC addresses. Roadway elevation is included in some embodiments.
摘要:
Intention data is used to determine an intent of a sender of a message, or other participant, in an electronic communication system such as an email system. For example, a message that is designated for sending can be compared to the sender's intention data and if a discrepancy or deficiency is detected between the sender's determined intent and the actual message then an action is taken such as providing an alert to the sender or to another person, process or device; requiring an action by the sender such as confirming the message, making an edit, checking information, etc.