Background overview
With the development of economy and the acceleration of urban construction, the rapid development of new urbanization and industrialization, production safety incidents and social security incidents also show an upward trend. In order to reduce the casualties and losses caused by emergencies and ensure the safety of people's lives and property, it is necessary to make adequate emergency preparedness, monitoring and early warning, disposal and rescue for emergencies. Various technical means such as voice, video, text, electronic map, integrated command and dispatch technology have been introduced. It realizes fast and intuitive understanding and command of the location information and real-time situation of the field personnel, and plays an important role in reconnaissance and cooperative operation for the personnel of public security department.
II. Systematic Introduction
BF-9300 BTX Creative Police (PDT) Cluster System is a multimedia communication fusion management and control system based on IP network, which integrates command and dispatch, video, monitoring, text and voice dispatch functions. The system adopts soft switch technology and distributed architecture design to realize cross-system, cross-system, cross-region, cross-department and cross-operator vertical and horizontal interconnection by integrating the system platform characteristics of access, interconnection and multi-cascade network. Fully utilizing many patented technologies of Beifeng's independent intellectual property rights, a comprehensive communication system with perfect functions, convenience, reliability, strong expansibility and high security is constructed. Whether the underlying system of business support is broadband or narrowband, only need to execute scheduling commands under a unified architecture, you can calmly handle and control the overall situation.
III. Application Areas
IV. System Advantages
BF-9300 BTX Creative Police (PDT) Cluster System not only continues the routine DMR and PDT wireless communication services, but also adds data services such as video surveillance, remote data acquisition and multimedia broadcasting. In the process of command and dispatch, it has the characteristics of "audible" and "visible". Traditional narrowband systems are limited in bandwidth and can only provide limited data capacity, which limits the development of information technology. The system fully understands the needs of users, realizes immediate opening, rapid deployment and comprehensive coverage from the practical application of customers, and strengthens the management and control ability, command ability and law enforcement duty ability of public security, army and law enforcement departments.
V. Networking Mode
Introduction of System Composition
Beifeng UC_MDS 4U trunked base station completes the air interface function of PDT protocol and provides wireless coverage and call services for a specific geographical area. Its main functions include admission control, resource scheduling and allocation, call link establishment and maintenance, and basic voice, data services and various scheduling services.
Beifeng UC_MDS 4U trunking base station adopts 19-inch cabinet structure and is based on mature ATCA architecture. The main modules include baseband and main control unit BCU, channel unit RFU, demultiplexer DIU and combiner COU. Baseband and main control unit adopt card insertion mode. All units adopt full IP switching. They have independent data bus and control bus, which makes the whole station run more stable and reliable. Typical configuration is 4 carriers, which can be extended to 16 carriers in stack mode when expansion is needed. When 2 carriers are needed, two transmitter slots can be occupied to integrate the combined duplexer.
Baseband and main control unit complete PDT cluster protocol processing, system main control processing and transmission processing. Cluster protocol processing includes PDT physical layer, data link layer and call control layer protocol processing; system main control processing includes wireless resource scheduling, admission and congestion control, mobility management and operation and maintenance of base station system; transmission processing provides external transmission interface, and completes between base station and MSC, base station, base station and dispatch station. Interaction between messages.
Channel unit mainly completes radio frequency transceiver processing, demodulates the received radio frequency signal and sends it to baseband and main control unit for processing, and modulates the baseband signal sent by baseband and main control unit and transmits it through radio frequency. Each channel unit supports two carriers.
The radio frequency unit that receives the wireless signal from the receiving antenna is allocated to each carrier for processing.
The radio frequency signals from each radio frequency unit are combined and sent to the transmitting antenna for transmission.
BF-9300 Multimedia Dispatching System Management Platform is a combination of hardware and software. The software is C/S architecture. It is divided into server-side and dispatching management terminal management software. It is used to manage and dispatch mobile terminals in the network. Besides supporting basic voice and data calls, it also supports all-Chinese operation, voice conference, plan management video surveillance and video conference. It also supports rich dispatching services, facilitates dispatchers or commanders to conduct unified command and dispatch and dynamic graphics. Real-time information management.
BF-9300 Multimedia Management Platform supports all-IP interconnection networking, based on C/S architecture, friendly operation interface, server and core network MSC installed in the core computer room, dispatch desk (customer service) can be remotely accessed through IP, without geographical restrictions. MDS supports simultaneous access to multiple dispatching stations, hierarchical networking and hierarchical scheduling. Each dispatching station can set different management authority to manage different MS or base station coverage areas.
7. Platform Advantage
MDS supports real-time display of the status of each mobile station, including shutdown, idle state, roaming state, call state, etc., and can restrict the mobile station's inbound and outbound permissions through instructions.
Through video image fusion, the unified access of various existing video systems (video surveillance, wireless image transmission, video conference, mobile soldier, smart phone, etc.) can be realized, and the centralized management and scheduling of all video systems can be realized. Seamless interaction between various video systems and other video systems can be realized through the integrated communication and scheduling platform. The interaction of audio system and business system.
Broadcast or non-broadcast calls to cluster users, including call, short message, strong insertion, strong disassembly, monitoring, recording, temporary grouping and full call, queue call, dispatch group call, and command conventions.
The dispatching station can complete all the call functions of an MS, support voice and data calls and group calls between dispatching station and mobile station, and support direct calls between dispatching station and dispatching station.
Through audio fusion, all kinds of existing audio systems (office telephone, dispatch telephone, intercom system, mobile soldier, mobile phone, landline, etc.) can be unified access, which can directly start the meeting with the user group or the designated key of the plan.
MDS supports GPS query and trajectory tracking for mobile stations. Through GPS inquiry of mobile station, the location of mobile station can be positioned, and the trajectory of designated mobile station can be tracked, so that the command center can dynamically grasp the location of attendants, and mobilize police forces for rapid deployment in emergency.
8. Software Interface of Background Dispatching Management
