Land Portable Ad Hoc Network Wireless Broadband Ad Hoc Network Base Station AP Dlink

The individual communication handheld station of the Mesh self-organizing network individual handheld device is more convenient in application. It adopts the advanced mesh-IP technology design concept and the detachable power supply mode design of the module, because it is small in size, light in weight, and can be equipped. The battery can be disassembled, and it can be held on the shoulder or back of the soldier during use. It combines the rapid self-organization feature of mesh, which can quickly interconnect and communicate with individual soldier nodes, and can be used for wireless information exchange in a variety of complex environments.

EST-Mesh self-organizing network single-soldier handheld station integrates two-way video, voice, positioning and other data transmission as a multi-functional portable single-soldier wireless image transmission communication device. Adopt wireless broadband MESH self-organizing network technology to realize the use in complex environments, which can provide IP transparent transmission channels for upper-layer applications such as multi-channel video, two-way voice, and broadband data in the front field. The characteristic of the self-organizing network is that it does not need to rely on basic communication facilities, and does not need to be manually configured, and it can quickly establish a wireless communication local area network anytime, anywhere. Because the product has the characteristics of rapid deployment, high compatibility, light weight, low power consumption, high bandwidth, etc., it has played an important role in various front field emergency communications, and can be widely used in emergency communications, rapid deployment, field investigations, Underground operations, fire rescue and other industries.

Technical Characteristics

▲Flexible networking

There is no center self-organized network, the carrier bandwidth is flexible and configurable, and it supports any network topology such as point-to-point, chain relay, star, mesh, and hybrid dynamics.

 ▲Strong adaptive

Optional external high-efficiency audio and video encoder, adaptive image transmission, image bandwidth, resolution and frame rate can be adaptively adjusted according to the channel bandwidth, fully ensuring the continuity and fluency of broadband data, high-definition video and other services.

 ▲Intelligent routing

The equipment can move quickly and randomly, the network topology can be changed and updated rapidly, dynamic routing reconstruction, real-time intelligent update, without affecting the overall transmission and communication of the system.

 ▲Anti-interference

Broadband carrier frequency hopping (optional) effectively enhances anti-interference ability. At the same time, it supports intelligent frequency selection (optional) working mode. When the working frequency is interfered in the equipment networking state, it can intelligently select the frequency without interference for networking, effectively avoiding interference. In addition, the ARQ error control transmission mechanism is adopted to reduce the data transmission loss rate and improve the reliability of data transmission.

 ▲All IP interconnection

The all-IP design supports transparent transmission of various data, and is easy to interconnect and interoperate with heterogeneous communication systems to achieve integration and interaction.

 ▲Security encryption

The system realizes marshalling encryption by setting the operating frequency, carrier bandwidth, scrambling code (ie MESHID) and communication distance and other “multiple locks”, and only when the above multiple configuration parameters are completely consistent, can it ensure legal access to the network and effectively prevent illegal users Intrusion; The system is fully independent research and development, the transmission protocol is a fully customized protocol, and the air interface transmission adopts a 64-bit key, which can dynamically generate a scrambling sequence, realize channel encryption, and ensure a high degree of security in information transmission. In addition, the system supports DES56/AES128/AES256 (optional) source encryption.

 ▲Easy to operate

The device has a built-in Wi-Fi communication module, and mobile devices, laptops or PADs can be accessed via Wi-Fi, and can be controlled without a network cable, which is convenient for users to manage and maintain.

 ▲GIS service

An external general GPS/Beidou module can display real-time location information such as geographic location, latitude and longitude, and movement trajectory.

Hardware Information

2.1 Adopting domestically produced self-organizing intellectual property technology, dedicated SOC chip, using private communication transmission protocol, and unique synchronization code.

AES 128-bit encryption technology: After the information data is encrypted by AES, the information before encryption cannot be obtained.

2.2 Adopt a variety of encryption methods and modular design.

2.3 Centralized and distributed, all nodes have the same status, and can self-organize a network under complex conditions such as non-line-of-sight (NLOS) and high-speed movement to realize TDD transceiver two-way communication.

2.4 It supports any network topology such as point-to-point, chain, star, etc., and can realize real-time interaction of multimedia information such as multi-channel IP sub-broadband data and multi-serial data.

2.5 Multi-hop relay, each node can move quickly and randomly, and the routing can be dynamically reconfigured when the system topology changes rapidly.

2.6 Convenient deployment, flexible use, simple operation, convenient maintenance, and the all-IP design (supporting various data transparent transmission) is easy to realize the interconnection of heterogeneous systems, and is especially suitable for wireless coverage transmission and wireless narrowband data networking.

Technical Advantages

Land Portable Ad Hoc Network (Emergency)

Model No.: EST-SC01-MESH

Communication Frequency: 1415~1455MHz, 1MHz step adjustable;

Transmitting Power: 2*30dBm (2*1W), 1dBm step adjustable;

Bandwidth Mode: 5/10/20 MHz;

Modulation Method: multi-carrier TDD-COFDM;

Carrier Modulation: BPSK/QPSK/16QAM/64QAM (adaptive or fixed);

Receiving Sensitivity: -98dBm @ 10MHz;

Communication Distance:

30km (ground-air/air-air line-of-sight), 8km (ground-ground line-of-sight);

Communication Rate: peak value 90Mbps (adaptive);

Transmission Delay: about 2ms per hop;

Multi-hop Capability: video can reach 8 hops;

Start-up Time: ≤25S;

Network Access Time: less than 1 second;

Route Switching: less than 1 second;

Data Interface: network port x 2, RS232 x 2;

Wi-Fi Supports 2.4G or 5.8G

Battery Power Supply: 12V/2A, battery capacity 4000mAh;

Power Consumption: 6~12W

Protection Level: IP65;

Working Temperature: -40~+70℃;

Size: Length: 155mm*width 70mm*height 45mm

Weight: 800g

The handheld broadband wireless ad hoc network equipment EST-SC01-MESH is implemented based on the software radio system architecture. It adopts self-developed COFDM waveform, efficient channel coding and decoding and multi-hop ad hoc network protocol and other technologies, and has strong resistance to complex channel environments Ability to achieve broadband service transmission between individual soldiers, vehicles, UAVs and other maneuvering points and fixed points in a complex scenario. The equipment is small in size, low in power consumption, and easy to carry by a single soldier.