Intercom exchange

摘要

An intercom exchange is connected to multiple terminals, and includes multiple communication paths, a digital switch circuit for switching connections between the terminals and the communication paths, and a CPU that controls the DSPs and the switch circuit. The CPU performs control for preferentially allocating a communication path to the first terminal, and the allocated DSP determines whether a sound from the first terminal that has been received as input via the switch circuit is an abnormal sound. Upon determining that the sound is an abnormal sound, the allocated DSP notifies the CPU, and upon receiving the notification, the CPU determines an alert destination based on the notification and performs alert processing for sending an alert to the alert destination.

主权项

1. An intercom exchange comprising:
a plurality of communication paths including a preferentially allocated communication path, and the preferentially allocated communication path configured to receive an external sound; each of the plurality of communication paths including a DSP (Digital Signal Processor) and each of the plurality of communication paths is configured to input and output audio data; the DSP of the preferentially allocated communication path is configured to determine if the external sound is an abnormal sound and output a notification signal when the external sound is the abnormal sound; a switch circuit connected to each of the plurality of communication path, and the switch circuit is configured to switch connections between the plurality of communication paths; a communication path control unit configured to:
control the switch circuit and each of the DSP,allocate at least one of the plurality of communication paths as the preferentially allocated communication path before the external sound is received,receive the notification signal from the DSP of the preferentially allocated communication path, andperform an alert processing in response to receiving the notification signal, the alert processing including outputting an alert signal; a memory configured to store an allocation table including information indicating an allocation state of the preferentially allocated communication path, wherein the communication path control unit references the allocation table stored in the memory, and controls the switch circuit to connect the DSP of the preferentially allocated communication path according to the allocation table.