Distributed scheduling communication device

Abstract

The present invention discloses a distributed scheduling communications device, which includes unit modules and an external transmission bus, wherein, the external transmission bus is connected to each unit module, the unit module is the smallest independently operated intelligence control terminal module, and is the minimized independently operated all-digital program-controlled scheduling telephone switch. The unit module includes an external bus adaptation interface, a program controlled processor, a timing control circuit, a data memory, a program memory, an analog telephone interface circuit, a man-machine interface circuit, a special signal tone circuit, and a sound recording circuit, wherein, the speech data between each telephone interface in the unit module adopts a digital time slot switch, and its data format and signaling is compatible to the digital program-controlled telephone switch. The invention combines the superiority of circuit switching and soft switching, adopts an independently operated unit module to configure according to requirement, so that the invention has advantages of modularization, digitalization, non-bottlenecks, adapting to various transport protocols, low application cost, high system reliability, good apparatus ductibility and so on.

Description

technical field [0001] The invention relates to a dispatching communication device, in particular to a distributed dispatching communication device, which is mainly used for dispatching and commanding communication in application fields such as industrial sites, underground coal mines, trains, ships, and tunnels. Background technique [0002] The dispatching communication system is mainly used for vertical dispatching and commanding, also known as the commanding communication system, which is usually a dedicated communication network composed of a dedicated dispatching telephone exchange and an associated terminal telephone. The commonly used capacity is between 16 and 512 gates, and individual users also use 1000 to 5000 gate-level dispatching communication systems, but they are usually used as a hierarchical dispatching system after logical division. [0003] The prior art dispatching communication system adopts circuit switching to realize voice exchange. The main connect...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects of high application cost, low system reliability, and poor equipment ductility in the prior art, and provide a combination of circuit switching and soft switching advantages, modularization, digitalization, and no bottleneck. Distributed scheduling communication device with low application cost, high system reliability, and good equipment scalability can be adapted to various transmission protocols by adopting independently operated unit modules and configured on demand

Images