22km wireless video data RC control link for IP camera long-range ethernet camera transmitter and receiver fhss

long-range wireless video data RC control link for ip ethernet camera transmitter and receiver

The wireless video data RC control link realizes long-range two-way wireless video, 音頻, and data transmission, and the longest air-to-ground transmission distance can reach about 22km.

The wireless video data RC control link provides multiple service interfaces, 包括 3 以太網端口, 1 RS232 serial port, 同 1 control serial port.

There is more and more unmanned equipment, and the mutual interference between links is becoming more and more serious. The anti-interference ability of the link is particularly important. For this reason, we specially launched a strong anti-interference video transmission, which supports automatic jumping of 22 頻率點. frequency supports 15-150 kilometers transmission distance, supports dual network ports 4 串行端口 (232, 斷續器, 485, 422 可选), 2-way Sbus, supports high and low temperatures -40 自 +85 度. Support point-to-point, 點對多點, Mesh ad hoc network. Supports small form factor micro boards.

特征

基於OFDM技術, two-way broadband wireless link equipment.
Business interface: 3 wireless transparent transmission Ethernet ports, 1 wireless transparent transmission RS232 serial port, 1 TTL control serial port ✔ Dual antennas: SMA connector, primary and secondary antennas, dual-transmit and dual-receive mode (2T2R), support MIMO
無線工作頻段: 566~678MHz, 1420~1530MHz, support automatic frequency selection within the frequency band
無線帶寬: 1.4MHz, 3MHz, 5MHz, 10MHz, 20MHz, 40MHz, air interface rate up to 100Mbps ✔ Modulation method: QPSK/QAM16/QAM64自動適應.
網絡模式: 點對點, 點對多點星網絡, Mesh network (定製), a central node can connect up to 31 access nodes. ✔ Wireless transmission power: 300mW*2
節點接收靈敏度: Sensitivity -95dBm at 20MHz bandwidth.
Support AES128 encryption and decryption.
Device configuration and wireless working status can be viewed through the network port Web UI or the control serial port.
電源: 12~18V
尺寸: 83.7*61*19mm (excluding connectors protruding from the housing, 等).
重量: Less than 140g

接口

接口	illustrate
RJ45*3	3 individual 4Pin PH1.25mm seats,3 Each Ethernet port device is in bridging mode(IP same address)
RS232	RS232 數據串口,3Pin PH1.25mm Spacer
C-TTL	3Pin PH1.25mm Seat, control serial port, 斷續器水平
電源輸入	XT30PW-M Seat, power input interface
螞蟻1	sma External threaded inner hole, 主天線接口
螞蟻2	sma External threaded inner hole, auxiliary antenna interface

Wireless video data RC control link has three IP ethernet RJ45 input port

RJ45 ethernet port
The three Ethernet ports are internally bridging (with the same IP address), and the wireless network port is in the transparent transmission mode of IP data.
For applications that require HDMI/SDI/AV/AHD video 傳輸, the video transmitter must add H265/H264 encoding board, which can be directly connected to the 4Pin Ethernet port for matching use.

RS232 data serial port
1 channel RS232 serial port for transparent data transmission, 3PIN PH1.25mm spacing socket, the signal of each PIN pin is shown in the figure below. The default baud rate is 115200, which can be changed through the Web UI or the AT command of the control serial port.

Wireless video data RC control link has C-TTL controlport

Control serial port
Control serial port (C-TTL), 3PIN PH1.25mm pitch socket, see the above picture for the signal of each PIN pin. The upper computer can configure and view the parameters and working status of the wireless link device through the AT command of the control serial port.

Wireless video data RC control link has 3 working status LED light

Working light
LED1: Red power indicator light, always on when the power supply is normal.
LED2: blue indicator light.
LED3: Green indicator light. The working status of LED2 and LED3 is as follows:

Central node

LED2: Blue indicator light is always on

LED3: 綠 indicator light does not shine

接入節點

LED3: 綠 indicator light is always on after the link with the central node is successfully established

LED2: Blue light indicator wireless link signal strength:

Strong wireless link signal strength: LED2: Blue Flash one time per 30 秒;
Normal wireless link signal strength: LED2: Blue Flash one time per 6 秒;
Weak wireless link signal strength: LED2: Blue Flash one time per one second;

應用:

The use of wireless video data RC control link can realize long-distance two-way wireless data communication, point-to-point two-way communication, and point-to-multipoint star network two-way communication.

In point-to-multipoint communication, if two access nodes need to communicate through the central node, each node is in the same wireless local area network, and all access nodes and the central node share the wireless working bandwidth, and the device will automatically average Assign system speed. The data transmission from the central node to the access node is called the downlink, and the data transmission from the access node to the central node is called the uplink.

In point-to-point or point-to-multipoint communication, the downlink and uplink share the wireless working bandwidth. When the device is shipped, the default setting is the ratio of uplink rate to downlink rate = 4:1. 因此, if the device is used to transmit IP Camera video data, the IP camera should be connected to the access node.

The device will automatically and dynamically adjust the wireless transmission rate according to the carried business data stream. When the amount of carried business data is smaller, the transmission distance will be farther under the same conditions. 因此, when the device is used to transmit IP Camera video data, the wireless transmission distance can be improved by setting appropriately reducing the IP Camera video encoding bit rate.