IP mesh ad hoc transceiver OFDM Transmitter and receiver Wireless Video Data Transmission for UAV Drone IP camera
IP mesh ad hoc трансивър OFDM предавател приемник Безжично предаване на видео данни за IP камера на дрон
Съдържание
Installed on the Drone
Общ преглед на продукта
This system adopts a new type of sub-broadband “wireless networking” based on point-to-point, от точка до много точки, and AD-Hoc networking. As a mobile center organization network, Vcan1401 is a central, разпределен, мулти-хоп реле, динамично маршрутизиране, силна неуязвимост, and good scalability wireless broadband system. It uses its own routing protocol internally. Jump forwarding completes wireless communication between nodes. Ad hoc разпределена широколентова безжична мрежова предавателна система с ефективен протокол за предаване на MAC слой и двуслоен протокол за маршрутизиране. It has excellent sub-broadband performance, strong anti-interference ability of system technology, висока ефективност на спектъра, предаване на дълги разстояния, способност против избледняване, и силна дифракционна способност. Той може да реализира в реално време и висококачествени безжични двупосочни функции за предаване на данни в сложни среди без пряка видимост.
Facing the information communication transmission of drones, Роботи, and unmanned boat platforms in complex environments, ние следваме принципите на дизайна на обобщението, модулиране, and standardization to realize high-speed real-time transmission of telemetry, дистанционно, and payload data from ground control stations to unmanned terminals on the water surface As well as the information collaborative interaction function between unmanned terminals, the system works continuously, stably and reliably for a long time.
Technical Feature
- After the central station is turned on, there is no need for complicated system configuration. After the on-site power-on, автоматично ще формира мрежа, и комуникацията може да започне в “секунди”;
- Произволна топология, мулти-хоп реле, релейно препращане;
- Логическите атрибути на всеки възел могат да бъдат гъвкаво конфигурирани;
- В момента, the same frequency network can support the interconnection of 1024 възли;
- Каналът е криптиран с AES;
- The system data bandwidth peak value is 32Mbps;
Hardware description
- 1) Приемете вътрешна самоорганизирана технология за интелектуална собственост, частна мрежа, протокол за предаване на частна комуникация, и уникален код за синхронизация.
- AES 128-битова технология за криптиране: След информацията данните се криптират от AES, информацията преди криптирането не може да бъде получена;
- OFDM pilot and data position scrambling code encryption: The number of OFDM subcarriers is kept secret, the number of pilots is kept secret, and the position of the pilot is kept secret, making it impossible to obtain pilot information for channel estimation and frequency domain equalization; the change method of pilot and data position is encrypted In this way, illegal users cannot correctly distinguish pilot frequency and data.
- LDPC code word structure encryption: LDPC code word structure includes code length, information bit, and check bit; the position changes of information bit and check bit are encrypted, and illegal users cannot correctly distinguish between information bit and check bit.
- Използване на множество методи за криптиране и модулен дизайн;
- Centralized and distributed, all nodes are equal in status, and can self-organize a network under complex conditions such as shielding non-line-of-sight (NLOS) и движение с висока скорост, и реализирайте TDD двупосочна комуникация;
- Support any network topology such as point-to-point, верига, звезда, и т.н., and can realize real-time interaction of multi-channel IP-based sub-broadband data, multi-serial port data, и друга мултимедийна информация;
- Щафета с множество скокове, всеки възел може да се движи произволно и бързо, and the route can be dynamically reconfigured when the system topology changes rapidly;
- Удобно разгръщане, гъвкава употреба, проста операция, удобна поддръжка, и изцяло IP дизайн (поддържа различни прозрачни предавания на данни) make it easy to realize the interconnection of heterogeneous systems, especially suitable for wireless coverage transmission and wireless narrowband data networking;
Технически параметри
- Честота на комуникация: 1415~1465MHz (3G\2.4G), регулируем;
- Предавателна мощност: 2*30стока (2*1W), 1dBm регулируема стъпка;
- Режим на честотна лента: 4 / 8 MHz;
- метод на модулация: TDD-COFDM с множество носители;
- Носеща модулация: BPSK/QPSK/16QAM/64QAM (адаптивен или фиксиран);
- Получаване на чувствителност: -110dBm @ 1MHz;
- Забавяне на предаването: около 2ms за един скок;
- Startup time: от точка до точка, point-to-multipoint≤5S (AD-Hoc start-up time 25S);
- Време за достъп до мрежата: по-малко от 1 второ;
- Превключване на маршрути: по-малко от 1 второ;
- интерфейс: мрежов порт x 2, RS232 x 2;
- Батерийно захранване: 12V / 1;
- Power consumption of the whole machine: 6~12W, standby 6W, receiving 8W, full load sending 12W;
- Работна температура: -40~ + 70 ℃;
- размер: дължина: 73mm*width 47mm*height 10mm;
- тегло: 60ж
Диаграма на данни
|
модулация |
1MHz Bandwidth (Mbps) | 2MHz
Bandwidth (Mbps) |
4MHz
Bandwidth (Mbps) |
8MHz
Bandwidth (Mbps) |
|
BPSK 1/2 |
0.38 | 0.7 | 1.25 |
2.15 |
|
QPSK 1/2 |
0.9 | 1.6 | 2.6 |
4.5 |
|
QPSK 3/4 |
1.6 | 2.7 | 4 | 7.1 |
|
16QAM 1/2 |
1.8 | 3.1 | 5.3 | 9.5 |
|
16QAM 3/4 |
2.2 | 3.9 | 8 |
14.2 |
| 64QAM 2/3 | 2.8 | 5.2 | 10.6 |
19.5 |
| 64QAM 3/4 | 3.8 | 6.4 | 12 |
21.5 |
| 64QAM 5/6 | 4.2 | 7.8 | 13.5 |
24 |
ЧЗВ Повече ▼
Q: Why does the radio transceiver seem to power on in seconds and power off always restart?
A: Please check the power supply, for the 2×5-watt PA inside, the power supply should be 16-26V at 4.5A. Maybe the power supply is not enough, then always restart. (2×1-watt or 2×2-watt need 12-18V)
Q: Why can’t I connect the transceiver radio device via web cable or get a ping feedback?
A: The default IP address of the two-way radio transceiver is 192.168.17.1.
Please make sure that the IPV4 address of your computer is the same net segment, например, 192.168.17.xxx.
Please set the default gateway of the IPV4 address is 192.168.17.1.
Q: Does your mesh two-way transceiver module support changing the frequency (канал) via the UART AT command?
A: да, please type the below commands at the serial port tool.
AT-API+ set
wlan.radios.0.name phy0
wlan.radios.0.txpower 30 （power amplifier, 30 means 2-watts）
wlan.radios.0.честотна лента 10 （frequency bandwidth）
wlan.radios.0.канал 2 （channel）
END-AT-API
(The numbers 30, 10, и 2 of the above command should change to what you want the number. )
Q: Does the radio support frequency hopping/ changing dynamically?
A: We have many models that support the frequency hopping function (FHSS). The cost is different.
The model you bought does not support frequency hopping. You can choose the frequency from the below picture. (Choose from the web page or AT commands)
Mesh Radio Transceiver Support Channel Frequency range
Q: Can I modify the less transmission power?
A: Сигурен. When you are testing the sample on the function except for the real transmission range, it is better to change the less transmission power in the lab.
20mW е 13dBm
200mW е 23dBm
1 Вата е 30dBm
2 Вата е 33dBm
5 Вата е 37dBm
10 Вата е 40dBm
20 Вата е 43dBm
50 Вата е 47dBm
100 Вата е 50dBm
Q: Can the web interface contain only the English language?
Now it supports English and Chinese.
Q: How many nodes the mesh architecture can support?
A: Supports up to 32-node networking. Too many nodes will cause high system overhead and the network will be very unstable. В общи линии, a dozen nodes are recommended.
Q: Is the relay function available in this modem? if yes then how many hops possible?
A: Support relay function. Max 5 hops in the one line.
Q: Can we decrease the data rate to increase the range?
A: да.
Q: Does the frequency band support 2280 Mhz към 2380 Mhz?
A: The frequency band can not meet your demand now. Only 2310-2380Mhz is available.
Q: What about the encryption? Do you provide by default encryption details?
Q: Please show us the drawing for hole positions and size of the 2×1-watt PA model.
Q: At this mesh IP radio, the new unit will be auto-joining my networking, how can we set authorization and protect our privacy?
A: If you have three or four robots, those who walk in the middle will serve as relays or repeaters for those who walk in the front. If you have three or four units, they can be auto-forming networking, so setting passwords is very important.
Моля, проверете по-долу картината.
Q: How can I update the firmware of your two-way IP radio?
Here is an example firmware of 20240415. Please contact us for the latest update firmware if you need it.
https://drive.google.com/file/d/1OcGiQ3gdaxTvjX3bpS2yJWzn4nNecq-S/view?usp=drive_link
Q: Why my IP transceivers have stopped talking to each other?
Why did our IP transceivers stop talking to each other? The UI says Mesh Network is broken. We cannot ping any Radio, we can not see any transmissions using the Spectrum Analyzer when we ping.
A: The parameter configuration should be messed up. What’s the situation with the wireless part? Is it convenient to take a screenshot? The easiest way is to restore the factory settings (after restoration, the IP address is: 102.168.17.1)
Изтегляне
Vcan1401 mesh version serial port AT setting routine description.pdf
Juan Dudulec –
Възможностите за борба с джама и гъвкавостта на честотата осигуряват сигурно предаване на данни дори в оспорвани среди. Използва се в нашите системи за гранични патрули, Доказано е незаменим за криптирани разузнавателни мисии.