Patrol inspection intercom communication system in power industry

Demand analysis

• There is no public network signal in the cable tunnel , The cost of arranging fixed network system is high

• The metal door 、 The environment such as curves is complex , It is difficult to return the real-time video of patrol inspection

• High voltage level 、 Large electromagnetic interference , High real-time requirement

• The public network signal near the substation is very poor , The patrol video cannot be returned through the public network

• Remote visual operation requires a large amount of interactive data

Introduction to system advantages

Beifeng MESH Wireless ad hoc network system is a brand new one “ Wireless grid ” The mobile broadband multimedia communication system designed by the concept . The system adopts the distributed network architecture of centerless ad hoc network , All nodes can be at non sight distance 、 Under the condition of random rapid movement , Realize multi-channel voice 、 data 、 Real time interaction of multimedia information such as images . Compared with the current network based on central node , The main advantage of centerless ad hoc network technology lies in ：

l Multi node fast and flexible networking ： Support 32 Nodes , It can be deployed quickly 、 Flexible networking . As the topological structure changes , The system will automatically recalculate the routing relationship between multiple nodes and quickly generate a new routing table .

l Strong anti-interference ： use ARQ Transmission mechanism , Improve the reliability of data transmission ; With frequency sweeping function , Under the single frequency point working mode, manually select the frequency points that are less affected by interference for networking .

l Disaster resistance to disfigurement ： When a node in the network fails , The forwarding task originally carried out through this node will pass through other nodes and automatically select the transmission path for relay transmission , The whole network is still working .

l whole IP Networking interconnection ： The whole system is adopted IP Design concept of data transmission , Easy to interconnect with other systems , Overcome the problem of poor signal of traditional public network , Reduce the cost of network construction , It is convenient for inspection in cable tunnels or other enclosed buildings .

l Remote visual operation ： The system supports voice 、 Images 、 Multimedia real-time transmission of data and positioning information , The device cooperates with other devices to complete voice calls 、 Video call 、 Data transmission and other functions , At the same time, the built-in WIFI modular , available WIFI Real time interaction with external device Association .

Scheme Application

When an emergency occurs , The emergency communication system needs to solve the problem of congestion blocking caused by sudden traffic peak in the public network communication network 、 Base station damage caused by fire, earthquake or terrorist attack 、 There is no signal coverage in remote areas 、 When performing special tasks, it is necessary to keep the communication confidential . Beifeng communication is based on the actual needs and application scenarios of emergency communication , Combined with new communication technology to create MESH Wireless ad hoc network system , The overall design idea meets the particularity of emergency communication .

The system uses advanced ad hoc network technology , There is no network coverage in the cable tunnel 、 Strong electromagnetic interference 、 Intelligent multi jump relay can be achieved in the case of closed and complex space 、 Long distance and high bandwidth 、 Self-organization and self-healing , Send audio and video back in real time , And can discuss and judge online at the same time , The last kilometer of the public and private mixed network is covered , Truly realize the wisdom , Real time online command and dispatching .

The system can be widely used in military 、 Public Security 、 Armed Police 、 fire 、 Civil air defense 、 Electric power 、 oil 、 traffic 、 Water conservancy 、 Forestry 、 Radio and television 、 Medical care 、 Water and air communications and other sectors , Provide users with reliable 、 In time 、 Security 、 Efficient voice 、 data 、 Rich integrated services such as video and visual command and dispatching , True realization “ On demand anytime, anywhere ”.