Emergency medical communication solution | mesh wireless ad hoc network system

Sudden medical and public health events are sudden 、 Group 、 Unpredictability . With the acceleration of Urbanization , Intensive medical personnel 、 Large scale facilities 、 Problems such as frequent emergencies are becoming more and more serious . How to build a high-quality national emergency medical rescue system , Promote the construction of intelligent medical treatment , Play remote 、 Efficient 、 intelligence 、 Unique advantages of convenience , It is very important to improve the treatment capacity in major public health emergencies !

Demand analysis

(1) 120 The ambulance communicates with the hospital staff in real time ;

(2) Daily patrol inspection of hospital security personnel ;

(3) Ward emergency call nurse station staff ;

(4) Hospital inter departmental communication ;

(5) Long distance communication blind spot problem ;

(6) There is noise interference in the call of the simulator .

03 Beifeng MESH Overview of wireless ad hoc network system scheme

Aiming at the common business needs and work difficulties in the hospital industry , Beifeng communication launched MESH The wireless ad hoc network system is in a new era “ Wireless grid ” On the basis of conceptual design ： The distributed network architecture of centerless ad hoc network is adopted , 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 .

The whole system is easy to operate 、 Convenient maintenance , It not only meets the daily remote communication requirements of the hospital , It also meets the requirements of emergency command and dispatching , It is convenient for hospital personnel to treat patients and save people or to transfer and command them on a daily basis , At the same time, it also ensures the safety of hospital personnel .

System introduction

High data bandwidth, fast movement

The peak data bandwidth of the system is 56Mbps, When the node moves rapidly, it does not affect the service with high data bandwidth . When there is an emergency in the hospital , It can ensure high-speed transmission of all channels , Ensure timely communication of information to avoid medical delays and accidents .

Strong anti-interference

The system adopts automatic retransmission request transmission mechanism , Improve the reliability of data transmission . Self frequency scanning function , Under the single frequency point working mode, manually select the frequency points that are less affected by interference for networking , Improve the first mock exam terminal noise. 、 Voice blur and other problems .

whole IP Networking interconnection

The whole system is adopted IP Design concept of data transmission , Multiple converged communication base stations with the same or different frequency bands scattered in different locations can be connected through the background of Beifeng , Form a wireless communication network without geographical restrictions , The mobile terminal can roam automatically under the network , Achieve communication .

Support multiple services

The system supports voice 、 Images 、 Real time transmission of data and positioning information ; built-in WIFI modular , available WIFI Real time interaction with external device Association .

No central co frequency ad hoc network

Single frequency support with TDD Two-way communication , Any node device can be used as an end node in the network 、 Relay node or command node use . One or more channels can be established according to the actual needs , Realize seamless voice coverage and grouping independent call function , Fully meet the needs of the hospital “ No blind spots 、 No interference 、 Clear voice ” Your job needs .

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 . The equipment is small and stable , Easy to install and maintain , In case of failure, it can be replaced at any time to quickly solve the problem .

Case application

The total construction area of a hospital is about 52 Thousands of square meters , Including the ground 14 layer 、 Two basement parking lots , The inpatient building 、 Outpatient building 、 canteen 、 Administration building, office building, etc .

Measured by hand on site , It is found that there are dead corners in some places of the hospital and normal communication is not possible , From the lower ground floor B There is no direct access to the elevator entrance on the sixth floor . From the middle of the first floor to 6 The weakest part of the signal on the first floor can hardly be directly connected . The whole area has dense floors and many elevators , Signal coverage is weak , Almost no normal communication . Besides , Because the hospital has more medical instruments , High shielding , Seriously affect the communication in the hospital .

Beifeng MESH The wireless ad hoc network system integrates the communication base station with a narrowband walkie talkie , Solve the dead corner of hospital communication through base station 、 The problem that there is no direct connection between multiple handhelds on the floor of the inpatient building ; At the same time, through the combination of direct and transit , Establish a voice channel between the remote floors of the inpatient building , Maximize the number of concurrent voice channels .