لینک داده رادیویی پهپاد ارزان قیمت

لینک داده رادیویی پهپاد ارزان قیمت

1. معرفی

The digital data link modules are used for the communication between UAVs and the ground station (gs) to send data and receive commands. The two-way radio link must have high reliability and always be connected during the flight. Link module on UAV side must have a low price due to limitation on UAV total cost in mass production.

The main feature of this data link is the low rate of sending and receiving data to reduce the occupied bandwidth and subsequently increase the sensitivity of modules.

یادداشت 1: The GS module must be capable of communicating with 12 UAVs simultaneously.

2. مشخصات فنی

مولفه های	ارزش
Maximum Operating Range	25کیلومتر
Operating Height	10-5000متر
Max UAVs Speed	100ام‌اس
باند فرکانس	UHF (upper 400MHz)
Frequency Channel Selection	بله
پرش فرکانس	اختیاری (ترجیح داده می شود)
UAV module Transmit Power	2W
GS module Transmit Power	10W
نرخ داده	See the below figures (software selectable in range of 1kbps to 500kbps)
Packet transmission delay	≤ 5 میلی ثانیه
تشخیص خطا	CRC
Channel Coding (FEC)	بله
رمزگذاری	بله
Senstivity	−122DBM به@20kbps −199DBM به@40kbps −111DBM به@230kbps −108DBM به@500kbps
MIMO Antenna	اختیاری
حالت کاربری	نقطه به نقطه (GS to one UAV) Point to MultiPoint (GS to maximum 12 UAVs on air, همزمان)
Receive satuation power	10DBM به
No damage receiver power	20DBM به
زمان چکمه	Less than 2sec
Operationg time	بیشترین 30 minutes continuously
Working tempearure	−20°𝐶 ~ + 60°𝐶

Three working modes for this digital data link can be considered, which are described in the following figures. According to the complexity and the cost of link module (specially on UAV side), each topology can be selected.

3. نوع شبکه

1- The working frequency of all uplinks and downlinks are different (the nodes work in different channels). 

2- The frequency of uplink and downlink for each node is the same but is different with other nodes.

3- The working frequency of all nodes is same as other nodes and GS is managing the nodes to avoid data loss and interference.

یادداشت 2: In all the above three topologies, frequency hopping is a great advantage but is not a critical feature.

4. Electrical and Interface

مولفه های	ارزش
UAV Installed Module
ولتاژ ورودی	9~ 18 ولت
درگاه سریال	1, RS422
میزان باود سریال	9600~460800bps,
رابط آنتن	دبیرستان
Interface Connector	J30J or DB type
وزن	Less than 150g
اندازه (lxwxh)	8 × 8 × 3 سانتی متر
GS Installed Module
ولتاژ ورودی	9~ 18 ولت
Serail Port	1, RS422
Serial Buad Rate	9600~460800bps,
شبکه محلی کابلی	RJ-45, 100مگابیت در ثانیه
رابط آنتن	N-Type
Interface Connector	J30J or DB type
وزن	Less than 500g
اندازه (lxwxh)	15 × 10 × 4 سانتی متر

Our low-cost UAV Radio Data Link does not has ethernet port, only serial port. The antenna connector is not N-Type, but SMA-Type. لطفا لینک زیر را بررسی کنید.