Claims
- 1. A method for providing vehicular traffic information, comprising the steps of:
- monitoring signals on control and voice channels of a cellular telephone system by means of a plurality of receivers tuneable to a desired control or voice channel;
- analyzing the signals monitored on the control and voice channels of the cellular telephone system for recognition of an emergency, the steps of analyzing the signals including:
- detecting a preselected signal within the signals monitored on the control channels;
- monitoring a voice channel for a preselected signal for key words indicating an emergency;
- classifying the emergency in response to the detected key words; and
- generating vehicular traffic reports in response to analysis of the signals monitored on the control and voice channels.
- 2. The method of claim 1, further including collecting directional data concerning the signals monitored on the control and the voice channels.
- 3. The method of claim 1, wherein the step of analyzing includes decoding data contained within the signals monitored on the control and the voice channels.
- 4. The method of claim 1, wherein the step of monitoring signals further includes tuning each of the plurality of receivers to a selected channel.
- 5. The method of claim 1, further including transmitting vehicular traffic reports to a control center.
- 6. The method of claim 1, wherein the step of analyzing the signals includes detecting and recording call initiations.
- 7. The method of claim 6, wherein the step of generating vehicular traffic reports includes comparing the recorded call initiations with a predetermined level of call initiations to determine locations of traffic congestion.
- 8. The method of claim 1, wherein the step of analyzing the signals includes detecting and recording call handoffs.
- 9. The method of claim 8, wherein the step of generating vehicular traffic reports includes means for calculating the number of recorded call handoffs per unit time to determine a vehicular traffic count.
- 10. The system of claim 8, wherein the step of generating vehicular traffic reports further includes calculating the time between detected call handoffs to determine a vehicular traffic flow rate.
Parent Case Info
This is a continuation of pending application Ser. No. 08/026,568 filed Mar. 5, 1993.
US Referenced Citations (3)
Continuations (1)
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Number |
Date |
Country |
Parent |
26568 |
Mar 1993 |
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