Functional Characteristics

. Advanced switch control technology

The System has the advanced digital switch technology, embedded processor, and embedded multifunctional communication processor in design.

. Grouping soft switch control technology

According to the characteristics of wireless trunking command and dispatch, the grouping soft switch mode is used to achieve the voice interconnection between base stations and to avoid the effect of the noise of the individual stations on the sound quality in the whole network so that the switch has no impact on the sound quality.

. Strong system graceful degradation and anti-damage capability

In order to improve the system reliability, the system is designed for hierarchical and distributed control, with the main controller checking the status of each module regularly, and with faults of any unit only affecting part of the work.

﹣If a networking link fails, networking base stations can work independently;

﹣If a signaling channel fails, a voice channel can take its place automatically.

﹣If a control module of the voice channel is damaged, the channel is closed and no business is distributed.

. Strengthened management of the monitoring function

In order to guarantee the normal use of the public security wireless communication, the system should have strong management and monitoring functions. In the daily maintenance and management work, the management and monitoring terminal can display visually and completely the real-time operation and call-up activities of the whole network, relevant information between base stations, and detailed real-time operation parameters of the control center, the base station and the channel machine, etc. while doing the real-time modification to the user’s parameters, in order to facilitate the user’s management and maintenance.

. Strong expansion capability

The system has a flexible networking mode for hierarchical network, and the system expansion is available by adding relevant function modules, without adjustment to the hardware of the original system.

. Dual link backup

To guarantee the reliability of the system, two mutual backup can be used for the network link, with wired link or wireless link chosen for the link.

. Compact size, easy installation

The system is designed for industrial integration, with its compact and small-sized function module, and fully considers the heat dissipation and electromagnetic compatibility in design.

. Reliable production design

The company has passed the ISO 9001-9001 quality system certification, and the system components and the complete machine are produced according to the military quality standard and the operation reliability of the factory equipment has been improved greatly through the strict production process and system testing, ending up in passing the certification of the Ministry of Public Security.

BK1000 is composed of the network switch control center, trunking communication base station system and mobile terminals.

1. Network Switch Control Center

NSCC, the core of the intelligent trunking simulcasting communication system of multi-base station networking and operated by a high-grade server and private control device, is the hub of the signaling and voice in the whole network system, performing such functions as network system control and switch, the centralized management and maintenance of network, with its reliability and stability being the key to the networking system.

. Network switch and control functions:

﹣Fulfillment of the control signaling processing of the whole network

﹣Calling process control: call setup, call hold, call clearing

﹣User management

. Centralized management and maintenance

﹣Focusing on one point to realize remote maintenance and management of the entire network and to achieve the machine rooms unattended;

﹣Adopting the packet transmission technology to realize real-time monitoring and management;

﹣Adopting the timing convergence, active inquiry and real-time feedback mechanism for the change of state;

﹣Management parameter zero buffer design, no interruption of the system operation while parameters modified;

﹣A friendly web-manager user interface;

﹣A real-time, accurate and visual display of patterns, state, and parameters of all the equipment;

﹣Detailed statistical statements to provide the first-hand materials for fault analysis and system load analysis;

2. Trunking Communication Base Station System

TCBSS is composed of base station control units, channel control units, channel machines and antenna feed system.

. Base station control unit

﹣To complete the connection of base station system bus and IP data channel

﹣To diagnose the network quality and provide the basis of the mode switching

. Channel control unit

﹣Channel control unit is in modular construction design, built in the same rack along with channel machines;

﹣In channel control unit are used the embedded CPU and the real-time software operation system, fast speed and high reliability;

﹣Channel control unit provides signaling and voice codec processing, and controls the sending and receiving of the radio signal by the channel machine;

﹣Any channel control unit within the base station can fulfill the function as data recording management of the whole base station and they operate under unified control and management of the control unit in the base station.

. Channel machines

﹣It is in modular construction design, with compact structure and high performance, easy to install and maintain;

﹣It is composed of power module, excitation module, power amplifier module, and receiving module;

﹣Transmitted power can be up to 50 w, 100% guarantee for stable performance of the continuous operation cycle;

﹣Electron components of high reliability are used, with their outstanding performance manifested in complex electromagnetic environments;

﹣Type approval by the national radio test center;

. Antenna feed system

It is composed of antenna duplexer, antenna, feeder, lightning protection equipment, with good performance and reliability.