地面用双向无线视频音频数据收发器 1-2 千米

地面用双向无线视频音频数据收发器 1-2 km is more popular, and we get a new inquiry. Recently, a client wanted us to customize a two-way wireless video and audio data transmission system for him, which is used on the construction site. The typical ground usage scenario is that both the transmitter and the receiver are on the ground. The transmission range required by the customer is 1-2 公里. If there are obstacles in the middle, a repeater can be added between the transmitter or receiver for video data and audio transfer. 同时, in case of problems with wireless transmission, you can switch to wired transmission at any time. And there are 4-6 cameras at the transmitter position. So he chose the following one, 威肯1752, according to his requirement details, TX900-2W-15KM is recommended.

地面用双向无线视频音频数据收发器 1-2 公里.

The following are the specific requirements of the customer. I will answer and explain one by one according to his specific requirements, why another style is more suitable or recommended.

1. Here is my first requirement, is it bidirectional two-way on the audio and data, unidirectional one-way transmission is ok.

视频:     Vehicle -> 控制器 (单向, 单程)
音频:     Vehicle -> 控制器 ; 控制器 -> Vehicle, (bidirectional, two-ways)
数据:      Vehicle -> 控制器 (UART interface needed); 控制器 -> 车辆 (UART interface needed)

iVcan.com:

The model 威肯1752 you mentioned is supporting video, 音频, 和数据.
The engineer is recommended at the below link, TX900. The NLOS test video at the below link from Youtube. https://youtu.be/X-nu-QZYc5Y

Four-video test video at

10. Range extender:

I require a module to extend the range (Similar to a repeater station). It will increase the range by at least 500m and allow me to work in more complex NLOS situations. It takes the signal from the controller and relays it back to the vehicle and takes the signal from the vehicle and relays it back to the controller

The situation is a bit like this. It will help overcome extreme curvature. (Extender is not fixed to the ground! The image is symbolic)

If I place the repeater in between the controller and the vehicle, it will allow me to cross a more complex NLOS environment, and give me a greater range. (I am not looking for a very high powerful transmitter to eliminate the repeater station.)

Vcan 回复:  

The model 威肯1752: NOT support a range extender

The recommended model TX900 supports a range extender. Customers need to purchase three sets of transceivers, one as a transmitter, the other as a receiver, and the third one can be placed as a relay in places with poor signal.

The relay is like the above picture. The drone in the sky is the extender. The transmitter and receiver are on either side of the mountain. UAVs in the sky can connect the transmitter and receiver.

题: The transceiver at the vehicle and controller are not identical. I assume You said buying 3 units meaning they are all identical.

回答: The transceivers are actually the same as them. 变送器, the receiver, and the extender are all the same product. They’re transceivers and can both receive and transmit data and audio.

11. Wired Transmission:

Let’s say the wireless transmission is not possible in a certain environment. And I have to go for wired transmission. I would like to transmit all the data between the controller and the vehicle via a wired transmission (Optical Fiber). There should be a switch at the controller, which will switch the system between wireless COFDM 和 wired optical fiber communication. (Repeater station is not needed or applicable in optical fiber communication, as controller and vehicle are directly connected).

• Let’s say, switch 上 -> the controller and vehicle are connected via optical fiber cable. (If the optical fiber cable is disconnected, communication fails obviously)
• Let’s say, switch off -> the controller and vehicle are connected via wireless COFDM system. (If the optical fiber cable is connected or disconnected, doesn’t matter, because, it’s not being used, and is basically a dead weight)

Vcan 回复:  

The model Vcan1752 you mentioned: NOT support

The recommended model TX900 support to added extended net cable.

The ordinary network cable supports 100 meters at most. If you use optical fiber, you need to add an optical transceiver module.

题: Will the audio and control + feedback data go through optic fiber?

回答: Optic fiber is like a net cable, which can connect the transmitter and receiver by cable. Audio and Video are together transmissions at the same time.

题: If two transceivers can transmit control + feedback wirelessly, they should be able to transmit control + feedback via optical fiber. Because I need to control and see the status of my vehicle when using optic fiber.

回答: Please choose the fiber optic transceiver with RS232 RS485 data transmission.