D-Link broadband mesh radio network device
The D-LINK system is a self-organizing distributed broadband wireless network transmission system designed based on OFDM technology, with an efficient MAC layer transmission protocol and layer 2 routing protocol.
All nodes are completely equivalent, without the need for any infrastructure, and can quickly build a dedicated self-organizing network between mobile nodes, providing instant adaptive communication and excellent broadband performance for remote control and real-time transmission of multimedia information.
Core autonomous algorithm technology;
After the central station is turned on, there is no need for complex system configuration. After on-site power is on and automatic networking is established, communication can be established.
Star shaped network, chain shaped network, 点对点, point to multipoint, multipoint to multipoint;
Flexible configuration of routing logical path attributes for each node, supporting the same frequency grouping network working mode, and supporting dynamic and static routing:
At present, the same frequency center network can support the interconnection of 118 节点, and the self-organizing network supports the interconnection of 32 节点.
The channel adopts AES 128-bit encryption technology:
The maximum movement speed of the node is greater than 300 kilometers per hour.
Adopting BPSK/QPSK/16QAM/64QAM adaptive modulation, reception diversity, and other technologies, the peak rate can reach 280Mbps, suitable for multi-hop transmission with large business volume;
Support high-precision wireless multilateral ranging, 距离, and location monitoring between nodes, with accuracy displayed to the meter level (independent of GPS and Beidou), refreshed once per second;
Support real-time platform monitoring of wireless spectrum sweep, noise floor, signal-to-noise ratio, field strength, 带宽, node distance, 等等. for a one-machine multi-space system, which can monitor the channel, 带宽, 力量, rate, 等等. of the radio station IP Set parameters such as keys.
Communication frequency: 1400~1500MHz working range (other frequency bands can be customized)
Bandwidth mode: 5/10/20兆赫;
调制方式: 时分双工正交频分复用;
Carrier modulation: BPSK/OPSK/16QAM/64QAM (adaptive or fixed adjustable):
Receiving sensitivity: ≤ -94dBm @ 10MHz;
Communication distance:>10~80km (line of sight in open spaces);
Communication speed: peak>90兆比特 (maximum transmission rate)
Transmission latency: Single hop approximately ≤ 3ms;
Start time: ≤ 40s;
Network access time: ≤ 1 second;
Route switching: ≤ 1 second;
Data interface: 1 road network interface, 2 RS232 (or TTL/422) 频道
