Telemetry system for automated remote calling and central dispatch of services, particularly taxicabs

摘要: Each of a large number geographically distributed call boxes asynchronously transmits unique code-identified digital messages for taxicab request, vanadalism alarm, low power, or on-line status by Frequency Shift Keyed Bi-phase Modulated radio. To ensure receipt any simultaneous, conflicting, at central receiver, each box repeats transmission its three times intervals. For human-initiated requests the itself feeds back "cab dispatched" visual indication to satisfy requestor after predetermined delay. However, this actually represents only highly probable occurrence and is not generated in response an actual dispatch location. The centrally received are processed computer eliminate redundance, display dispatcher service, log all responses thereto.