IP mesh ad hoc transceiver OFDM Transmitter thiab receiver Wireless Video Data Transmission rau UAV Drone IP koob yees duab
IP mesh ad hoc transceiver OFDM transmitter receiver Wireless Video Data Transmission rau drone IP koob yees duab
Cov Lus Qhia
Installed on the Drone
Product Overview
Qhov no system txais ib hom tshiab ntawm sub-broadband “kev sib txuas lus wireless” raws li point-to-point, point-to-multipoint, thiab AD-Hoc networking. Raws li lub koom haum mobile center network, Vcan1401 yog lub hauv paus, faib, multi-hop relay, dynamic routing, muaj zog invulnerability, thiab zoo scalability wireless broadband system. Nws siv nws tus kheej routing raws tu qauv sab hauv. Dhia xa mus ua tiav kev sib txuas lus wireless ntawm cov nodes. Ib qho ad hoc faib broadband wireless network kis tau tus mob nrog ib tug npaum MAC txheej kis raws tu qauv thiab ib tug ob-txheej routing raws tu qauv. Nws muaj kev ua tau zoo ntawm sub-broadband, strong anti-interference ability of system technology, high spectrum efficiency, ntev kis tau tus mob, anti-fading peev xwm, thiab muaj zog diffraction muaj peev xwm. Nws tuaj yeem paub txog lub sijhawm tiag tiag thiab zoo tshaj plaws wireless ob-txoj kev cov ntaub ntawv xa mus ua haujlwm hauv qhov chaw nyuaj thiab tsis-kab-ntawm-pob qhov pom.
Facing the information communication transmission of drones, robots, and unmanned boat platforms in complex environments, we follow the design principles of generalization, modularization, and standardization to realize high-speed real-time transmission of telemetry, tej thaj chaw deb tswj, 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, nws yuav cia li tsim ib lub network, thiab kev sib txuas lus tuaj yeem pib hauv “vib nas this”;
- Arbitrary topology, multi-hop relay, relay xa mus;
- The logical attributes of each node can be flexibly configured;
- Tam sim no, the same frequency network can support the interconnection of 1024 nodes;
- The channel is encrypted with AES;
- The system data bandwidth peak value is 32Mbps;
Hardware description
- 1) Adopt domestic self-organized intellectual property technology, private network, private communication transmission protocol, and unique synchronization code.
- AES 128-bit encryption technology: After the information data is encrypted by AES, the information before encryption cannot be obtained;
- 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.
- Using multiple encryption methods and modular design;
- 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) and high-speed movement, and realize TDD two-way communication;
- Support any network topology such as point-to-point, saw, star, thiab lwm yam, thiab tuaj yeem paub txog kev sib cuam tshuam ntawm lub sijhawm ntawm ntau tus IP-raws li sub-broadband cov ntaub ntawv, multi-serial chaw nres nkoj cov ntaub ntawv, thiab lwm yam ntaub ntawv multimedia;
- Multi-hop relay, txhua lub node tuaj yeem txav tau yooj yim thiab nrawm, thiab txoj hauv kev tuaj yeem rov kho dua tshiab thaum lub system topology hloov pauv sai;
- Kev xa tawm yooj yim, siv tau yooj yim, kev ua haujlwm yooj yim, yooj yim txij nkawm, thiab tag nrho-IP tsim (txhawb ntau yam ntaub ntawv pob tshab kis tau tus mob) ua kom yooj yim kom paub txog kev sib tshuam ntawm cov txheej txheem heterogeneous, tshwj xeeb tshaj yog tsim rau kev sib txuas lus wireless thiab wireless nqaim band cov ntaub ntawv sib txuas;
Kev Tsis
- Communication frequency: 1415~ 1465 MHz (3G\2.4G), adjustable;
- Kev xa hluav taws xob: 2*30dBm (2*1W), 1dBm step adjustable;
- Bandwidth mode: 4 / 8 MHz;
- Tes taws los piav txoj kev: Multi-carrier TDD-COFDM;
- Carrier modulation: BPSK/QPSK/16QAM/64QAM (adaptive or fixed);
- Tau txais rhiab heev: -110dBm @ 1 MHz;
- Kev xa tawm qeeb: about 2ms for a single hop;
- Startup time: taw tes-rau-taw tes, point-to-multipoint≤5S (AD-Hoc start-up time 25S);
- Network access time: tsawg dua 1 thib ob;
- Routing switching: tsawg dua 1 thib ob;
- Cov ntaub ntawv interface: network port x 2, RS232x ua 2;
- Battery power supply: 12V / 1;
- Power consumption of the whole machine: 6~ 12 W, standby 6W, receiving 8W, full load sending 12W;
- Ua hauj lwm kub: -40~ + 70 ℃;
- loj: ntev: 73mm*width 47mm*height 10mm;
- Nyhav: 60g
Data Chart
Tes taws los piav |
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 |
FAQ ntxiv
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: Lub neej ntawd IP chaw nyob ntawm ob-txoj kev xov tooj cua transceiver yog 192.168.17.1.
Thov nco ntsoov tias qhov chaw nyob IPV4 ntawm koj lub computer yog tib ntu ntu, piv txwv li, 192.168.17.xxx ib.
Thov teeb lub rooj vag qub ntawm qhov chaw nyob IPV4 yog 192.168.17.1.
Q: Does your mesh two-way transceiver module support changing the frequency (channel) via the UART AT command?
A: Yog, thov ntaus cov lus txib hauv qab no ntawm lub cuab yeej serial chaw nres nkoj.
AT-API + teeb
wlan.radios.0.npe fy0
wlan.radios.0.txf zog 30 (Lub zog amplifier, 30 txhais tau tias 2-watts)
wlan.radios.0.bandwidth 10 (ntau zaus bandwidth)
wlan.radios.0.channel 2 (channel)
END-AT-API
(Cov lej 30, 10, thiab 2 ntawm cov lus txib saum toj no yuav tsum hloov mus rau qhov koj xav tau tus lej. )
Q: Does the radio support frequency hopping/ changing dynamically?
A: Peb muaj ntau yam qauv uas txhawb cov zaus hopping muaj nuj nqi (Cov qauv no tau tsim los rau kev sib txuas video thiab cov ntaub ntawv wireless nrog ob txoj kev wireless cov ntaub ntawv txuas). Tus nqi sib txawv.
Tus qauv koj yuav tsis txhawb nqa zaus hopping. Koj tuaj yeem xaiv qhov zaus ntawm daim duab hauv qab no. (Xaiv los ntawm nplooj ntawv web lossis AT cov lus txib)
Mesh Radio Transceiver Support Channel Frequency range
Q: Can I modify the less transmission power?
A: Ntsoov. 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 is 13dBm
200mW is 23dBm
1 Watts is 30dBm
2 Watts is 33dBm
5 Watts is 37dBm
10 Watts is 40dBm
20 Watts is 43dBm
50 Watts is 47dBm
100 Watts is 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. feem ntau, 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: Yog.
Q: Does the frequency band support 2280 Mhz rau 2380 Mhz?
A: Cov zaus band tsis tuaj yeem ua tau raws li koj qhov kev thov tam sim no. Tsuas yog 2310-2380Mhz muaj nyob.
Q: Yuav ua li cas rau encryption? Koj puas muab los ntawm cov ntsiab lus encryption default?
Q: Thov qhia peb cov duab kos rau qhov chaw thiab qhov loj ntawm 2×1-watt PA model.
Q: At this mesh IP radio, the new unit will be auto-joining my networking, peb tuaj yeem tsim kev tso cai thiab tiv thaiv peb tus kheej li cas?
A: Yog tias koj muaj peb lossis plaub tus neeg hlau, cov neeg uas taug kev hauv nruab nrab yuav ua tus relays lossis rov qab rau cov neeg taug kev hauv ntej. Yog tias koj muaj peb lossis plaub units, lawv tuaj yeem ua haujlwm tsis siv neeg sib txuas, yog li kev teeb tsa tus password yog qhov tseem ceeb heev.
Thov xyuas daim duab hauv qab no.
Q: Kuv tuaj yeem hloov kho lub firmware ntawm koj ob-txoj kev IP xov tooj cua li cas?
Ntawm no yog ib qho piv txwv firmware ntawm 20240415. Thov hu rau peb rau qhov hloov tshiab tshiab firmware yog tias koj xav tau.
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)
download
Vcan1401 mesh version serial port AT setting routine description.pdf