초록 ▼

A method for a subject vehicle to avoid collisions is provided. At least one lane feeding into an intersection is scanned. The presence of a threat vehicle in the at least one lane is detected. Whether the subject vehicle and the threat vehicle will occupy the intersection at the same time is predic

A method for a subject vehicle to avoid collisions is provided. At least one lane feeding into an intersection is scanned. The presence of a threat vehicle in the at least one lane is detected. Whether the subject vehicle and the threat vehicle will occupy the intersection at the same time is predicted. A warning is issued in response to the predicting.

대표청구항 ▼

A method for a subject vehicle to avoid collisions is provided. At least one lane feeding into an intersection is scanned. The presence of a threat vehicle in the at least one lane is detected. Whether the subject vehicle and the threat vehicle will occupy the intersection at the same time is predic

A method for a subject vehicle to avoid collisions is provided. At least one lane feeding into an intersection is scanned. The presence of a threat vehicle in the at least one lane is detected. Whether the subject vehicle and the threat vehicle will occupy the intersection at the same time is predicted. A warning is issued in response to the predicting. r sense and/or control system implemented with wireless two-way communication capability in a communication medium between a base station and one or more of multiple sensor devices distributed at different locations throughout a spatial region, comprising: multiple sensor devices each having a different identification address and a sensor device transceiver that transmits a communication message signal in response to a wake-up producing condition, the sensor device transceiver including low power-consuming sensor signal processing circuitry and sensor signal communication circuitry selectively switchable between a lower power-consuming standby mode and a higher power-consuming operating mode, and the sensor signal processing circuitry storing in memory sites different control signals corresponding to different communication message signal producing conditions; and a base station having a base station transceiver including base station signal processing circuitry and base station signal communication circuitry, the base station signal processing circuitry cooperating with the base station signal communication circuitry to receive the communication message signal and transmit in response to it an activation signal to which the sensor device transceiver of the sensor device that transmitted the communication message signal can respond to produce a control signal corresponding to the communication message signal producing condition, and the base station receiving from the sensor device transceiver that transmitted the communication message signal a supervision message that includes the identification address to verify a communication link between them. 8. The system of claim 7 in which the base station signal communication circuitry is selectively switchable between a lower power-consuming standby mode and a higher power-consuming operating mode and in which the base station further comprises a micro-power receiver in operative association with the base station transceiver, the micro-power receiver communicating with the base station transceiver such that, in response to detection by the micro-power receiver of the communication message signal, the base station signal communication circuitry assumes its operating mode to enable the base station transceiver to decode the communication message signal and transmit the activation signal to the sensor device that transmitted the communication message signal. 9. The system of claim 8 in which each of the multiple sensor devices further comprises a micro-power receiver in operative association with the sensor transceiver, the micro-power receiver communicating with the sensor transceiver such that, in response to detection by the micro-power receiver of the communication message signal, the sensor transceiver assumes its operating mode to receive the activation signals. 10. The system of claim 8 in which, after the base station signal communication circuitry assumes its operating mode, the base station transceiver receives a portion of the communication message signal to confirm that the signal detected by the micro-power receiver is a valid communication message signal. 11. The system of claim 8 in which the base station transceiver transmits the control signal to multiple sensor devices in addition to the sensor device that transmitted the communication message signal to provide at different locations in the spatial region the control signal of the communication message signal producing condition. 12. The system of claim 7 further comprising an automatic telephone dialer that is operatively connected to the base station for communicating with a monitoring center in response to at least one of a test condition, a trouble condition, an alarm condition, a sensor device supervising process, a base station-to-monitoring center supervising process, a verification process, or a status indicating condition. 13. The system of claim 7 in which one of the multiple sensor devices is an out-o f-range sensor device that is out of direct communication range with the base station, and further comprising an intervening sensor device having an intervening sensor device transceiver positioned to receive from the out-of-range sensor device and transmit to the base station the communication message signal and to receive from the base station and transmit to the out-of-range sensor device the activation signal. 14. The system of claim 7 in which the base station signal communication circuitry is selectively switchable between a lower power-consuming standby mode and a higher power-consuming operating mode and the base station signal communication circuitry assumes its operating mode during a time when the sensor device transmits the communication message signal to receive the communication message signal and transmits in response to it an activation signal to which the sensor device transceiver of the sensor device that transmitted the communication message signal can respond to produce a control signal corresponding to the communication message signal producing condition. 15. The system of claim 7 in which the base station transceiver continually transmits synchronization signals and in which the sensor signal communication circuitry of each of multiple sensor devices continually switches between the standby and operating modes to sample the communication medium for transmission of the synchronization signals and thereby enable the sensor device transceiver in its operating mode to receive the synchronization signals, to thereby enable synchronization of the switching between the standby and operating modes of the multiple sensor devices. 16. The system of claim 7 in which the sensor signal processing circuitry of each of the multiple sensor devices establishes a transmission time at which the communication message signal is transmitted, the transmission time of any one of the multiple sensor devices being different from the transmission time of any other one of the multiple sensor devices. 17. The system of claim 16 in which the transmission time of any one of the multiple sensor devices is determined by the identification address of the sensor device. 18. The system of claim 8 in which the base station transceiver transmits the control signal to multiple sensor devices in addition to the sensor device that transmitted the communication message signal to provide at different locations in the spatial region the control signal of the communication message signal producing condition. 19. The system of claim 7 in which the communication message signal producing condition includes a test condition, a trouble condition, an alarm condition, an enrollment process, a supervising process, a verification process, a status indicating condition, a sound-controlling condition, a sensor arming condition, a sensor disarming condition, an indicator light controlling condition, a switch controlling condition, a communication message signal acknowledgment condition, a system configuration indicating condition, or a message routing condition. 20. The system of claim 7 in which the base station is battery powered. 21. The system of claim 7 in which the multiple sensor devices further comprise associated sounders and at least one of the multiple sensor devices transmits a communication message signal indicating an alarm condition, and in which the base station responds to the alarm condition message by transmitting a sounder activating message signal to the multiple sensor devices to sound their associated sounders. 22. The system of claim 21 in which the multiple sensor devices are of a smoke detector type or a fire detector type. 23. The system of claim 21 in which the alarm condition message is a smoke or fire alarm condition message and in which the base station responds to the smoke or fire alarm condition message by transmitting a message resetting the sensor device that transmitted the smoke or fire alarm condition message, and waiting