Shenzhen Suntor Technology Co., Ltd.

NMT Series VTX Ground-to-Ground Testing Report 1. Purpose   Try to test the transmission distance of NMT Series VTX with 1.4G frequency band, 5M band width and 2dBi antenna gain at ground-to-ground with some trees blocking case.   2. Prepare   CD30NMT 1.4GHz * 2 (1 Access Node 192.168.1.12, 1 Central Node 192.168.1.11) IP Camera * 1 (192.168.1.200) IP Camera * 1 (192.168.1.201) IP Camera * 1 (192.168.1.202) Computer * 1 (192.168.1.2) 1.4GHz 2dBi Antenna * 4 Switch * 1 EasyPlayer V1.0   3. Step   a) IP Camera (192.168.1.200) &IP Camera (192.168.1.201) &IP Camera (192.168.1.201) connected via a switch to the CD30NMT Access Node (192.168.1.12); b) Connect CD30NMT Central Node (192.168.1.11) with Computer (192.168.1.2); c) Run Command Window and ping CD30NMT Central Node to make sure connection is normal; d) Ping CD30NMT Access Node to make sure connection is normal; e) Ping IP Camera to make sure connection is normal; f) Run EasyPlayer.exe and input “rtsp://192.168.1.200:554/live/0/MAIN” to check IP Camera video is normal; input “rtsp://192.168.1.201:554/live/0/MAIN” to check IP Camera video is normal; input “rtsp://192.168.1.202:554/live/0/MAIN” to check IP Camera video is normal; g) Run Chrome and input CD30NMT Central Node & Access Node IP Address to make sure settings as i. Frequency Band: 1.4GHz ii. Frequency Hopping: Disable iii. Band Width: 5MHz iv. Uplink Downlink Rate: 2D3U h) Put Central Node & Computer at P0, take IP Camera & Access Node away from P0;   4. Environment   P0 Location: 22.513451, 113.949414 Nanshan,Shenzhen,Guangdong,Province,China https://www.google.com/maps/@22.5121298,113.9495762,17.25z?entry=ttu&g_ep= EgoyMDI0MTAyMi4wIKXMDSoASAFQAw%3D%3D   5. Testing   5.1 1.4GHz + 2dBi Antenna + 5MHz The route is to ride along the lake.   A PO to P1 distance: 324.99m. Three-ways video are smooth,data rate 8.5M   B PO to P2 distance: 545.16m. Three-ways video are smooth, data rate 8.2M   C PO to P3 distance: 690.05m. Three-ways video are smooth. data rate 7.5M   C PO to P4 distance: 819.17m. Three-ways video are smooth. data rate 5.7M   D PO to P5 distance: 647.44m. Three-ways video are smooth. data rate 1.6M, Blocked by buildings.   E PO to P6 distance: 383.21m. Three-ways video are smooth. data rate 6.6M   Summary: A circle around the lake, Sight distance with a few trees blocking three-way video is very smooth, there is no mosaic phenomenon, there is no lag, the video transmission is very good.

Suntor has renewed its CE certification   In October 2024, Suntor Video Transmission Radios successfully received CE certification, enabling another product line to enter the European market. This certification demonstrates our unwavering commitment to providing best-in-class and compliant products to our partners.

Mesh wireless ad hoc network equipment is a temporary multi-hop autonomous system composed of a group of movable nodes with wireless transceivers. It does not rely on preset infrastructure and has the characteristics of temporary networking, rapid deployment, and wireless Control center, strong invulnerability and other characteristics. It has broad application prospects in both military and civilian applications. It is an important equipment in the field of modern wireless communications.     In practical applications, Mesh wireless ad hoc network equipment can achieve the following functions:   1. Voice communication The VOIP call equipment of each team member and the wireless ad hoc network node are connected through the Ethernet port or WIFI wirelessly, and are realized through this system with the audio and video dispatching platform of the command vehicle and the off-vehicle commander. Real-time two-way interconnection. The command vehicle and the off-vehicle commander can make individual calls, group calls, group calls and other voice calls to single or multiple action team members at any time through the audio and video dispatch platform or handheld command terminals, realizing the communication between individual team members, off-vehicle commanders and Real-time two-way voice communication between operational team members.     2. Video command The collection equipment carried by each front-end action team member is connected to the wireless self-organizing network node through the Ethernet port or WIFI wireless method, and through this system, it communicates with the audio and video dispatching platform of the command vehicle and the off-vehicle commander. Real-time two-way interconnection between them. The command vehicle and off-vehicle commanders can access the video images returned by one or more action team members at any time through the audio and video dispatch platform or handheld command terminal for real-time command decision-making. Each wireless ad hoc network system can achieve a transmission rate of up to 8.9Mbps and can support real-time transmission of up to 8 channels of images at the same time.     3. The system is stable and does not drop out. Each mash wireless self-organizing network device of Tengyuan Zhituo supports point-to-point, point-to-multipoint, and mesh network architecture. The total number of nodes is no less than 42 and can maintain links with multiple devices at the same time. . In addition, Mesh wireless self-organizing network equipment also has non-line-of-sight diffraction transmission capabilities and self-healing functions. Each node of Mesh wireless self-organizing equipment has one or several paths for transmitting data. If the nearest node fails or is interfered with, data transmission packets will automatically choose an alternate path to continue transmission, and the operation of the entire network will not be affected. Therefore, the stability of the entire equipment system is very stable.

Due to the increasing maturity of wireless transmission technology, it has been widely used in many fields. The application of wireless transmission systems has effectively improved the efficiency and safety of some outdoor operations. Today we will learn about the important applications of wireless transmission in coal mining.     Due to the deep underground and complex environment, underground coal mine operations have a high rate of safety accidents. When encountering an emergency, traditional communication methods cannot transmit various information in a timely and effective manner. The multi-hop ad hoc network system adopts the Mesh ad hoc network mode, which has excellent performance such as automatic networking, automatic network healing, and decentralized network topology. It is very suitable for building a stable network in the complex environment of coal mining and providing wireless broadband access signals.      Introduction to design plan In the underground tunnel, a multi-hop self-organizing network relay base station equipment is placed at intervals, and adjacent base stations can be directly interconnected to form a network. Based on the total length of a mine tunnel of 10 kilometers, only about 30 multi-hop ad-hoc network relay base stations need to be deployed to achieve full coverage of wireless broadband network signals in the entire underground working area.     The underground wireless broadband system composed of a multi-hop ad hoc network system has a large business capacity and can support more than 300 terminals to access the network at the same time. When underground personnel work, they carry handheld smart terminals with them, which can automatically connect to nearby multi-hop self-organizing network relay base stations, and then connect to the ground dispatching and command center through multi-hop relay links. Ground dispatch commanders and underground workers can exchange various data information, audio and video information, etc. in real time.     Multi-hop ad hoc network systems have strong self-healing capabilities. If any multi-hop ad-hoc network relay base station equipment is damaged or accidentally leaves the original network, the remaining relay base stations will automatically reorganize the network. That is to say, if any device in the group goes offline, the corresponding device will continue to communicate within the effective antenna coverage, ensuring that the network does not go offline. In practical applications, we can adopt a ring network design without worrying about ring network congestion.     Suntor Mesh self-organizing network equipment can adopt a variety of communication combination methods and be applied to different usage scenarios. It can be installed at fixed points or in places such as moving vehicles, ships, personnel, robots, drones, unmanned ships, etc. for rapid wireless deployment. The product software module integrates base station communication, client communication, point-to-point communication, and its own MESH self-organizing network communication function and automatic roaming function that are different from other mesh products on the market. Through the application of this system, in the coal mining process, it will help improve coal mine production efficiency, improve safety production conditions, and provide important technical support for coal mine safety production and dispatching communications.