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Application of communication technology in coal mine production

Shandong Sanhekou Mining Co., Ltd. is a 1mt/a mine. In order to enhance the overall scientific and technological equipment level of the mine with low profit of the main paper types and the combat ability of rescue and disaster relief, DM-1 multimedia digital program-controlled scheduling system is applied. On the basis of retaining the scheduling function of the traditional dispatcher, the system transplants the ISDN service to the dispatcher, integrates the software and hardware of voice, data, image transmission and exchange, intelligent processing terminal and so on into one system, and provides users with a complete application solution

- composition of iisdn multimedia dispatching information system

DM-1 digital program-controlled dispatching exchange host is the fifth generation of digital program-controlled dispatching machine with modular structure. It divides users into Dispatching users and ordinary users. It can complete all the adjustment functions as an independent digital program-controlled dispatching machine, and can also be used as an administrative switchboard (built-in computer operator). DM-1 dispatching system is equipped with terminal dispatching console, keyboard dispatching console, digital recording terminal and maintenance terminal with complete functions. It is equipped with a variety of relay interfaces and analog user and digital user (is-dn) interfaces. The capacity is flexibly configured from 8 lines to 3712 lines, with a full modular structure

the keyboard dispatching desk can complete the dispatching functions such as call, transfer, monitoring, forced insertion, forced disassembly, meeting, etc. The minimum number of keys on the keyboard is 168 keys (40 function keys, 128 scheduling user keys). According to user needs, the number of 64 keys can be increased

the terminal dispatching desk is completed by a computer, which is divided into main and Deputy seats. It can complete all scheduling functions such as call, transfer, monitoring, forced insertion, forced disassembly, conference, etc. There is no limit on the number of dispatching desks. Terminal dispatching desks can be operated by mouse or touch screen in 2016

the digital recording terminal is used to complete the call recording between the dispatcher and the dispatched user. Recording can be done manually or automatically. Each recording terminal can record 32 channels at most at the same time

the maintenance terminal can maintain the system data. Settings include office data, extension data, relay data, dispatching station grouping, etc

-1 characteristics of ISDN multimedia scheduling information system

(1) the system design structure is reasonable. It adopts fully decentralized control mode, modular structure and hot backup design, which has higher reliability and strong function scalability; On the premise of fully protecting users' investment, it can adapt to the future technological development and the development of users' needs

(2) apply sidn technology to the dispatcher. DM-1 dispatching host not only has the function of general dispatching machine, but also has ISDN function. It can provide two kinds of user network interfaces (2B + D and 30b + D) (it can connect to digital telephone, G4 fax machine, video, multimedia terminal, video conference terminal, TV terminal, connecting local LAN, etc.). On this basis, it can realize resource sharing between local areas; It can further provide packet switching and conference television services

(3) rich relay interfaces and strong group capacity. It can provide various relay interfaces, such as digital relay (China No.1 signaling and China No.7 Signaling), carrier relay (two and four lines), magnet relay, FJM relay (le/1m, 2e/2m; 2e/3m), loop relay, solid line interruption, etc., and can conduct tandem connection between any relay interface to call dispatching console and attendant console

(4) with rich signaling methods and strong interconnection ability, it can provide tup part of signaling 7 (E1), ISUP part of signaling 7 (E1 Jinan testing machine factory customers visit), DSS1 digital user signaling (2B + D, 30b + D), China signaling 1 (EL, carrier), dual audio (a variety of analog relays and ordinary users), and a variety of line signaling

(5) support multiple outgoing directions, and each direction has direct route and detour route functions

(6) the system has sufficient capacity and convenient expansion. The system can be configured with up to 29 user modules (a total of 3712 line users), each user can be set as either a scheduling user or an administrative user, and the "scheduling user" and "administrative user" can be "isolated" as needed, and divided into different groups to provide more management means

(7) provide remote module. In the region, it can be grouped in the mode of "office remote module", and the office dispatching desk can remotely dispatch the users of the remote module, and can forcibly insert or disassemble it; Centralized maintenance can be carried out in terms of product variety and performance, and the module end can also be maintained by itself, and remote maintenance can be carried out across provinces and cities. After the communication between the remote module and the host is interrupted, the internal users of the remote module can still call each other, that is, it has "internal exchange function". Centralized management of data setting and maintenance of remote module

(8) one machine with multiple scheduling. User ports and relay ports can be divided into different groups. Users in different groups can have their own dispatching stations (dial the same number) and can limit ports to intra group calls The number of groups can be up to 16. After grouping, the system realizes the function that users dial the same number to call different dispatching stations, forming a virtual dispatching machine with multiple dispatching machines in one dispatching machine

(9) multi seat scheduling function. Users in the same group can have multiple dispatching stations, and the number is unlimited. Each seat can be equipped with primary and secondary dispatchers. All seats can be operated at the same time without affecting each other

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