FHSS Soo noqnoqoshada-hopping fidinta spectrum ee gudbinta xogta fiidyaha bilaa-waayirka ah gudbiyaha iyo qaataha
How does FHSS work on the drone wireless video transmitter and receiver?
FHSS is an automatic frequency modulation technology. We widely used FHSS in wireless video data transmission of drones. Because the drone’s wireless link is often subject to signal interference.
Muuqaalkan, this frequency point shows the current signal strength.
The 1365 we see is the current signal working frequency point of our wireless transmission equipment.
Why does this frequency go here?
Because there are other signals on the right that are interfering. It will run automatically.
If the signal receives interference again, it runs away again, choosing the frequency with the least interference.
This process is meant to avoid interference. We also call it the FHSS function.
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Drone mesh xogta fiidyowga wirelesska ah isku xirka 150-200km dhexda dheer ee xayaysiiska shabakada ad hoc -
Xidhiidhka Drone-ka ee xogta Fiidiyowga fog-fog ee Raadiyaha Telemetry Gudbinta Wireless-ka ee u dhaxaysa UAV iyo Saldhigga Xakamaynta Dhulka -
22Km xogta fiidiyoowga wirelesska ee kontoroolka RC ee ip ethernet camera gudbiyaha iyo qaataha fhss Vcan1806
Q1: What is the FHSS Frequency-hopping spread spectrum?
A1: Soo noqnoqoshada-hopping fidinta spectrum (Qaabkan waxaa loogu talagalay gudbinta fiidyaha iyo xogta ee wireless-ka oo leh isku xirka xogta wireless-ka ee laba-geesoodka ah) is a method of transmitting radio signals that involves rapidly changing the carrier frequency among a wide range of frequencies.
FHSS will occur automatically on both the transmitter and receiver at the same time. FHSS is used to prevent eavesdropping and interference on the long-range wireless video transmitter and receiver. When the current working frequency is jammed or interfered with, the transmitter and receiver disconnect and hop to the next available frequency to reconnect.
Q2: Why do you need the FHSS function?
A2:
1. Because the signal hops to a different frequency band, FHSS signals are highly resistant to narrow-band interference.
2. If the frequency-hopping pattern is unknown, signals are difficult to intercept.
3. Jamming is also difficult if the pattern is unknown; if the spreading sequence is unknown, the signal can only be jammed for a single hopping period.
4. With minimal mutual interference, FHSS transmissions can share a frequency band with many types of conventional transmissions. FHSS signals interfere in narrow-band communications and vice versa.
Q3: How to set the FHSS at your wireless video data transmitter and receiver?
A3: At the web manager UI, please choose the advance page, you can see the above picture.
https://i0.wp.com/ivcan.com/wp-content/uploads/2022/02/UI-Advance.webp
Q4: 7 tips you should know before you choose a wireless video transmitter and receiver with FHSS function.
A4:
1. TX900B-2W supports the frequency range is 1420~1530MHz, waxaana jira 110Mb bandwidth oo la isticmaalo.
2. Macmiilku waxa uu u dejin karaa xadhkaha xadhkaha goosha ee shaqada sida 1.4M/3M/5M/10M/20MHz (Si kastaba ha ahaatee, 1.4M/3MHz may not be suited for video transmitting). Markaa TX900B-2W way ku shaqayn kartaa Habka FHSS (Soo noqnoqoshada-hopping fidinta spectrum) and the system will automatically select the central working frequency and may do frequency hopping (inta u dhaxaysa 1420 ~ 1530MHz) inta ay shaqaynayso.
3. Macaamiishu waxay sidoo kale qorsheyn karaan inay isticmaalaan kanaalada soo noqnoqda guud ahaan 1420 ~ 1530MHz waxayna dejiyaan qalabka si ay ugu shaqeeyaan kanaalada joogtada ah ee joogtada ah sidoo kale.
4. TX900B-2W supports the longest distance at 22km.
Marka laga reebo inta jeer ee la taageeray iyo masaafada ugu dheer, muuqaalka jirka, interface, UI, hawlgalka, iyo wixii la mid ah, TX900B-2W waxay la mid tahay TX900B-15km-2W.
5. TX900B-2W only support a frequency range is 1420~1530MHz, ma taageerto inta jeer ee 800MHz iyo 2.4GHz.
6. Waxaa jira laba nooc, TX900B-2W-15km, iyo TX900B-2W-22km.
7. As the TX900B-2W frequency range is 110Mb, marka haddii aad u habayso xadhkaha xadhkaha goostay ee shaqaynaya sida 10Mb, markaas ayaad heli doontaa 11 waxay tilmaamaysaa boodboodka.
Q5: What is the working principle of your FHSS?
Our wireless video transceiver adopts intelligent frequency selection-interference avoidance.
Intelligent frequency selection (interference avoidance) technology is a new anti-interference technology, which can effectively avoid interference and maximize the reliability and stability of wireless transmission.
The key to our unique intelligent frequency selection (interference avoidance) technology lies in the three major processes of interference detection, decision-making, and switching execution. Interference detection refers to real-time detection of interference and background noise at each frequency point during normal communication, so as to provide basic support for decision-making. The decision-making is completed independently by each node, and the optimal frequency is selected based on the criterion of optimizing its own receiving performance. The point is used as the receiving frequency point; the switching execution occurs after the decision selects a new optimal frequency point, and the switching process will not cause data loss, ensuring stable and continuous data transmission.
Our unique intelligent frequency selection (disturbance avoidance) technology enables each node to independently and dynamically select different optimal frequency points for different frequency networking, so as to optimize the overall network performance and effectively avoid interference.
Fadlan fiiri sawirka hoose, the blue area is the effective signal, iyo the red line is interference. 
Q6: Does your FPV VTX support the FHSS frequency automatic jumping function to avoid interference?
FPV VTX is a one-way transmission and cannot support the FHSS frequency automatic hopping function.
FPV VTX is a one-way transmission, which can transmit the video from the aircraft to the ground receiver through the transmitter.
FHSS function, when the user finds that the signal sensitivity is declining or encounters an obstacle, it will notify the transmitter and receiver to modify the frequency at the same time and find a frequency with the least interference for transmission. If only the receiver modifies the frequency without controlling the transmitter to modify the same frequency, the frequency of the transmitter and receiver will be inconsistent and the transmission will be interrupted.
Because of the above requirement of notifying the transmitter to modify the frequency, the FHSS function needs to be based on a two-way transmission system.
Or your FPV VTX can support modifying the frequency function through the serial port. When you need to modify the frequency, the operator sends a preset serial port command from the receiver to the serial port of the transmitter. After receiving this command notification, the transmitter automatically changes to the next frequency point.
This is equivalent to your wireless transmission equipment, which has both a one-way video transmission function and a two-way data transmission function, which is equivalent to your current wireless control system. So whether it supports the serial port to modify the frequency of the transmitter depends on whether your current device supports it.
Our models below support such functionality.
Vcan1776 Vcan1886
S: Do you have a video data link as per the below requirement?
The required distance is 50 kiiloomitir, Qaabkan waxaa loogu talagalay gudbinta fiidyaha iyo xogta ee wireless-ka oo leh isku xirka xogta wireless-ka ee laba-geesoodka ah (jumping over 1,000 times in one second), ideally above 6Ghz (others can be considered, the most important thing is frequency hopping technology), and it is also necessary to transmit data, video, and protect the remote control channel, preferably A set of data links (gudbiye + aqbalana + antenna) using frequency hopping technology (Qaabkan waxaa loogu talagalay gudbinta fiidyaha iyo xogta ee wireless-ka oo leh isku xirka xogta wireless-ka ee laba-geesoodka ah)
iVcan Reply: No, The frequency is only 1.4G, the working frequency for 6Ghz needs custom development.
S: Do you have any optional model to support the FHSS Frequency-hopping spread spectrum?
In the below picture, you can see that there are 12 points frequency ready for FHSS.
Real-time interference detection function
The products that support FHSS
Drone Video Transmitter support FHSS
Radio Telemetry support FHSS
Fiidiyowgii ugu dambeeyay ee tijaabadii diyaaradda Drone-ka-wareega-dheer ee Wirless Video Gudbiyaha iyo qaataha
2W PA 27KM Tijaabada dhabta ah ee buurta sare ilaa dhinaca badda ee Line-of-Sight
Ugu dambeeyay 110km Tijaabi muuqaalka diyaaradda Drone-ka-wareega-dheer ee Wirless Video Gudbiyaha iyo qaataha
Fiidiyowga fiidiyaha wirelesska ah ee NLOS iyo fiidiyoowga tijaabada qaataha ah ee tijaabinta ee dhismaha wiishka gudaha ee aan khadka aragga ahayn
65 KM Drones UAV Run ahaantii Duulaya Tijaabada Gudbinta Fiidiyowga Wireless
65 KM Drones UAV Run ahaantii Duulaya Tijaabada Gudbinta Fiidiyowga Wireless
1.5km dhulka NLOS, 10-20-30km LOS hawada ilaa dhulka gudbinta gudbinta fiidiyoowga wireless
COFDM-912T NLOS (non-line hortiisa) 1.5km imtixaanka dhabta ah ee magaalada, dhismayaal, geedaha iyo waddooyinka
Maareynta Aaladda Shabakadda UI ee isku xirka xogta fiidyaha ee UAV ee gudbinta kamarada IP Net
Gudbiyaha Fiidiyowga ee ugu jaban ee CVBS RCA 720P + 1080Taageerada qaataha 128 sirta
COFDM-912T Runtii tijaabi jawiga magaalada oo adag, gudbiyaha baabuurka, qaataha ee dhismaha
Fiidiyowga Wireless-ka ee jaban iyo shaashadda yar ee qaataha ayaa caawinaad weyn u leh qufulka xoogga signalada
Gudbiyaha Fiidiyowga Wireless-ka ee OFDM ee kamaradaha IP-ga ee Shabakadda Gudbinta Raadka Dheer ee Fudud
Distance Gudbinta
Nidaamka Xakamaynta Duulimaadka
Gudbinta Fiidiyowga
Habka Gudbinta Wireless-ka
Caqabad iyo Aragti
Sirin oo fur
Gudbinta gudbinta
Jihada Xogta
anteeno
Su'aalaha la isweydiiyo ee ku saabsan Gudbiyaha Fiidiyowga Wireless-ka iyo qaataha
Gudbiyayaashayada fiidyowyada bilaa-waayirka ah waxay leeyihiin noocyadan is-dhexgalka fiidyaha: HDMI 1080P iyo 4K HDMI, CVBS ka kooban, SDI, AHD, IP Ethernet, BNC, ama noo sheeg nooca aad u baahan tahay, Injineerkeena ayaa wax ka beddeli doona si uu u daboolo baahidaada.
Fogaanshayada gudbinta waxaa lagu hagaajin karaa iyadoo lagu darayo cod-weyneyaal koronto. Waqtigan xaadirka ah, kuwa ugu waaweyn waa 15km, 30km, 50km, 80km, 100km , iyo 150km, taas oo ku xidhan baahida macaamiisha.
Dabcan, fogaanta gudbinta ee kor ku xusan dhamaantood waa gudaha LOS baaxadda khadka-aragga. Haddii ay jiraan caqabado u dhexeeya gudbiyaha iyo qaataha, NLOS (aan khadka-aragga ahayn), Fogaanta gudbinta ayaa si weyn loo dhimay, kaliya 1km ama 2km, iyadoo ku xiran tirada caqabadaha dhexdhexaadka ah iyo deegaanka wireless-ka ee deegaanka.
Hal wado macneheedu waa, Waxa kaliya oo aan u gudbin karnaa oo ka soo dejisan karnaa fiidyaha ama xogta gudbiyaha fiidyaha bilaa-waayirka ah ee qaataha hal dhinac, mana soo galin karno muuqaal ama xog ka soo qaadaha gudbiyaha. Noocaan waxaa sidoo kale loo yaqaannaa simplex.
Laba-dhinac taas macnaheedu waa, Kaliya maahan inaan ka soo dejisan karno muuqaal ama xogta gudbiyaha wireless-ka ee qaataha, laakiin sidoo kale waxaan ku dhejin karnaa fiidiyoowga ama xogta ka soo qaadaha ilaa gudbiyaha. Tani waxay aad ugu habboon tahay ka shaqaynta diyaaradaha aan duuliyaha lahayn. Ma arki kartid oo kaliya fiidiyoowga waqtiga-dhabta ah ee laga soo gudbiyay diyaaradda aan duuliyaha lahayn, Laakin sidoo kale soo rar amarka si loo xakameeyo diyaarada ama amarka lagu xakameynayo kamarada PTZ si loo hagaajiyo xagasha gudbiyaha. Tani waxay shaqayn kartaa isku mar. Noocaan sidoo kale waxaa loo magacaabay nus-dulpex ama laba-duplex.
Fadlan faahfaahinta ka hubi linkiga hoose. https://ivcan.com/request-a-quote-of-wireless-video-transmission/#simplex
Badi gudbiyaasha fiidyowga Wireless-ka ayaa hadda taageera AES128 ama AES256 xoogaa sireed iyo decryption, iyadoo ku xiran nooca aad doorato. Fadlan nala soo xidhiidh si aad u xaqiijiso.
Soo noqnoqoshada fiidiyooga fidiyowga bilaa-waayirka ah iyo qaataha fiidiyaha wireless-ka labadaba waa la bedeli karaa. Isticmaalayaashu waxay u baahan yihiin inay iibsadaan looxyada qaabeynta cabbirka dheeraadka ah.
Si kastaba ha ahaatee, iyada oo la tixgelinayo in cod-weyneeye koronto oo u dhigma iyo anteeno ay horeba ugu go'een meel cayiman marka alaabta la diro. Haddii isticmaaluhu uu hagaajiyo inta jeer ee gudbiyaha, u dhiganta awood kordhiyo, anteenada gudbiyaha iyo anteenada qaataha waa in sidoo kale wax laga beddelo isla inta jeer ee isku mid ah, isticmaalayaashan waxay u baahan yihiin inay diyaar garoobaan. Haddii kale, waxay keeni doontaa inta jeer ee gudbiyaha fiidiyoowgu in uu ka duwan yahay inta jeer ee anteenada, soo dhaweynta ka dhigaysa mid adag. Markaa fadlan hubi inaad wargeliso inta jeer ee saxda ah ee aad u baahan tahay ka hor intaadan dalban.
Haddii ay tahay ammaan ama sir, waad awoodaa isticmaal sirta iyo furista hawlaha gudbiyaha iyo qaataha, kaas oo hubin kara in gudbinta fiidyowgaagu ay tahay mid gaar ah. .
Haa, dhammaan alaabtayada xuduudaha waa la beddeli karaa iyadoo loo eegayo baahida macaamiisha. Haddii aad hayso codsi gaar ah, fadlan nagu soo ogeysii xiriirka hoose.
https://ivcan.com/request-a-quote-of-wireless-video-transmission/
- Beddel meesha qaataha si looga fogaado faragelin maxalli ah oo ka iman karta bay'adaha magnetic xooggan.
- Hubi in anteenooyinku shidaan gudbiyaha iyo qaataha labaduba waa toosan.
- Fadlan kor u qaad anteenooyinka gudbiyaha iyo qaataha joogtayso kala duwanaansho dherer gaar ah.
- Fadlan hareeraha eeg si aad taas u hubiso ma jiraan wax caqabado ah oo u dhexeeya gudbiyaha iyo qaataha.
- Beddel jihaynta anteenada qaataha.
- Hadii ay shaqayn waydo, isku day u wareejinta dawada si uu ugu dhawaado booska gudbiyaha si loo eego haddii ay dhaaftay fogaanta gudbinta wirelesska ee waxtarka leh.
- Ama ka fiirso ku darida gudbinta gudbinta u dhexeeya gudbiyaha iyo qaataha.
- Anteenadu waa inay ahaataa mid dhulka ka fog sida ugu macquulsan, maadaama dhulku nuugi doono ishaarada la kala qaado.
Dabcan, Waxaan sidoo kale fahamsanahay in gudbinta fiidiyoowga ee wireless-ka ah iyo kuwa qaata ay aad qaali u yihiin. Waxaad ka fog tahay warshadda Shiinaha. oo aad rajaynayso in alaabta aad hesho ay ku habboon yihiin waxqabadka ugu fiican.
Haddii aad si gaar ah u fiirsato halbeeg ama shaqo gaar ah, Waxaan qaadi karnaa xoogaa fiidiyowyo tijaabo ah oo ku saleysan astaamaha aad rabto inaad aragto, fadlan xor u noqo inaad nala soo xidhiidho. Si toos ah laguuguma soo rari doono ogolaanshahaaga la'aanteed.
Si loo tijaabiyo daahitaanka fiidiyoowga bilaa-waayirka ah ee gudbiyaha iyo qaataha, waxaan u baahanahay inaan samayno laba imtixaan.
Marka hore waa in la tijaabiyo daahitaanka kamaradda ilaa bandhigga.
Midda labaad waa kamaradda, oo lagu daray bandhigga oo lagu daray gudbiyaha sawirka wireless-ka ah iyo daahitaanka soo-dhowrka.
Kala goynta labada natiijadood ee imtixaanku waa daahitaanka dhabta ah ee gudbiyaha fiidyaha bilaa-waayirka ah iyo qaataha.
Sida xirfadle fog fog HDMI fiidiyooga wireless iyo alaab-qeybiyaha iyo soo saaraha ee Shiinaha Shenzhen, waxaan soo saareynaa gudbiyaha fiidiyoowyada wireless-ka ugu wanaagsan sanado badan, waxaana helnay sumcad wanaagsan iyo dib u eegis wanaagsan.
Qaar ka mid ah noocyada caanka ah ee gudbinta fiidiyoowga wireless, sida Blackmagic, Holyland mars 300 400s, Accsoon cine eye 5g, RavenEye, Zhiyun, Inkee benbox, actiontec, CVW SWIFT 800, dahuu, iogear, Artek pat-225k, microlite, liqid, teradec.
Miisaanka ugu fiican ee fiidiyaha fiidiyaha ah ee fiidiyaha ah ee fiidiyaha ah iyo qaataha ayaa leh codsiyo badan, loogu talagalay 4K tv, Kaamirada amniga ee CCTV, kamarad gurmad gaadhi, Xirmada kamaradaha fiidiyoowga ah ee PTZ, batari ku shaqeeya, kombuyuutar, sawir qaade Sony, nidaamka shirarka fiidiyaha wifi, CANON DSLR, Diyaaradaha aan duuliyaha lahayn ee UAV, kombayutarka kombayutarka, projector, in-gaari, iPhone iPad, daawashada tooska ah, GoPro kamarada ciyaaraha, raspberry pi, Xbox.
Muuqaalka HD oo buuxa, audio, isku xirka xogta ugu yar 1080P gudbiyaha fiidiyaha bilaa-waayirka ah iyo qaataha waxa uu leeyahay xirayaal badan oo wax gelin ah iyo wax soo saar, sida CVBS-ga ka kooban AV, HDMI, SDI, BNC, VGA, USB.
Soo-diraha fiidiyoowga wireless-ka ee TX RX soo noqnoqda wuxuu leeyahay 170-806Mhz, 1.2ghz, 2.4G, 5.8G, ugu hooseeya laakiin aan latency eber ahayn. Si loo taageero masaafada dheer, Cod-weyneyuhu wuxuu leeyahay 10w, 20watts, iyo xataa 30W.
Waa maxay iibsashada ugu wanaagsan ee FHD-ga fiidiyaha bilaa-waayirka ah qiimo jaban? Waa inay tixgelisaa shuruudahaaga faahfaahinta, si habboon u dooro, aan qaali ahayn, haddii aad shaki ka qabto, fadlan buuxi codso xigasho qaab, injineerkeena ayaa ku siin doona xal.
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