| Customization: | Available |
|---|---|
| Type: | Wireless |
| Usage: | Security Warning and Protection |
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The wireless Internet of Things system is essentially a software defined radio technology implementation. Considering the requirements for long-distance/anti-interference communication capabilities, the physical layer adopts OFDM adaptive adjustment method and optimizes channel estimation, which can effectively compensate for Doppler frequency offset, support vehicle movement at 80 kilometers per hour, and achieve cross base station switching or dynamic self-organizing network in self-organizing network mode. The MAC layer adopts 802.11 connectionless mode and corresponding frame format, optimized and enhanced for mobility. To avoid bandwidth loss caused by multi node CSMA/CD conflict detection, the system implements uplink time-division multiplexing, which can effectively support applications with multiple video uploads.
Network functionThe independently innovated OFDM/CDMA air interface of the adaptive cognitive wireless Internet of Things system effectively combines the efficient transmission capability of OFDM with the long-distance anti-interference communication capability of CDMA, and has completed product implementation in the UHF frequency band. The system has a large working bandwidth, can reliably perceive the spectrum environment, and has the ability to dynamically select the spectrum. It can self adjust the transmission and reception parameters (channel bandwidth, transmission power, modulation method, dynamic adaptive coding, etc.), and can autonomously optimize the communication effect.
The system does not require a core network, and the network topology can be flexibly configured according to needs. It can adopt master-slave, ad hoc, and relay networking modes, and the network deployment is simple.
Being able to dynamically select spectrum based on supply and demand, and flexibly configure channel bandwidth;
Supports frequency hopping and has strong resistance to interference;
Support cross base station handover and report good mobility;
Support point to multipoint, self-organizing network, and fast convergence of self-organizing network topology;
Low loop latency<5ms, supporting control class low latency requirements;
Symmetric uplink and downlink, adaptive allocation of uplink and downlink bandwidth, all bandwidth can be allocated to the uplink;
Facing connectionless environments, with strong anti-interference capabilities;
The wireless transmission system based on IP has a wide range of applications and can carry various services such as video, voice, and data;
Time division uplink multiplexing effectively supports video uplink transmission;
Good transmission capability, supporting non line of sight transmission, superior to the transmission distance and penetration capability of 3G/4G/5G;
Flat network structure, flexible deployment, no need for a dedicated core network;
The system is easy to use and maintain;
Support external encryption machines based on IP addresses for commercial and national encryption;
| Smart government | Emergency social linkage wireless network, wireless emergency link networking |
| smart city | Smart communities, smart rural areas, smart highways, electricity meter reading, reservoir monitoring, smart parking, environmental monitoring |
| Public safety | Public Security Emergency Wireless Private Network,SnowyProject,Wireless Audio and Video Command System, Public Security Private Network Wireless Backup |
| Smart Tourism | Tourist internet service, wireless video surveillance in scenic areas |
| Smart Forestry | Forest fire monitoring wireless feedback, forest rangers patrol wireless private network networking, forestry data wireless collection and feedback |
| Border Patrol | Wireless video surveillance for border defense and wireless private network networking for border patrol |
| Smart Ocean | Coastal wireless coverage, fishery patrol wireless networking, fishery wireless networking, hydrological monitoring data feedback |
| Smart Shipping | Channel video surveillance, shipping wireless internet service, hydrological monitoring sensor receipt collection |
| UAV application | Unmanned aerial networking, unmanned farming command and remote control, unmanned pesticide spraying |
Point to point method, using directional antennas, with a hanging height generally above 30 meters, mainly used to solve the non line of sight and high bandwidth transmission needs between points.
The adaptive cognitive wireless system equipment consists of a baseband, transceiver, amplifier, and antenna combination. By combining different baseband, transceivers, amplifiers, and antennas, the system can be constructed in various forms such as handheld, airborne, backpack, vehicle mounted, shipborne, and vehicle mounted.
UHF 2x4W
UHF handheld
| UHF handheld | Ultra high frequency 2x4W (4+4) | |
| Working frequency band | 542-698MHz (channels 30-49) | 470-698MHz (channels 21-49) |
| bandwidth | 5 /8/10/16/20 MHz | 5/10/20 MHz |
| Transmission power | 200 milliwatts/23dBm (fixed, ± 2dBm) | 2x4 watts/37dBm (adjustable, ± 2dBm) |
| A-interface | OFDM | OFDM |
| MIMO | 2x2 | 2x2 |
| modulation | BPSK /QPSK / 16QAM / 64QAM | BPSK /QPSK / 16QAM / 64QAM |
| Maximum transmission rate | 30Mbps UDP/5MHz carrier 50Mbps UDP/8MHz carrier 90Mbps UDP/16MHz carrier |
30Mbps UDP/5MHz carrier 50Mbps UDP/8MHz carrier 90Mbps UDP/16MHz carrier |
| receiver sensitivity | -97dBm/5MHz | -97dBm/5MHz |
| Peripheral modules | ||
| USB KEY | support | support |
| Beidou module | ||
| 5G module | ||
| FUNCTION | ||
| Networking method | Point to point, point to multipoint, self-organizing network | Point to point, point to multipoint, self-organizing network |
| Sweep frequency function | support | support |
| AGC | support | support |
| QoS | support | support |
| TDMA | support | support |
| USB KEY | support | support |
| Physical indicators | ||
| Radio Frequency Interface | SMA 2-channel | N Mother Head 2 Road |
| network interface | 1 adaptive 10M/100M Ethernet interface | 1 adaptive 10M/100M Ethernet interface |
| Power supply interface | TYPE C | |
| Power supply mode | DC5V 3A | DC +24V 2.5A |
| Equipment power consumption | ≤15W |
≤60W |
| operation temperature | -20 ~ 60 ºC |
-20 ~ 60 ºC |
| storage temperature | -40 ~ 70 ºC |
-40 ~ 70 ºC |
| Storage Humidity | 80% |
80% |
| size | 195mm x 75mm x 30mm | 195mm x 75mm x 30mm |
| weight | ≤ 0.5kg | ≤ 0.5kg |
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