Yadda za a canza HDMI ko CVBS shigarwar bidiyo ta hanyar UART AT?
COFDM Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF yawo
COFDM Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF yawo
Teburin Abubuwan Ciki
Wani kallon gefe
COFDM Encoder module, CVBS / HDMI shigar da, IP fitarwa
Don ƙarin cikakkun bayanai game da allon rikodin COFDM, don Allah ziyarci nan
COFDM Encoder module Riba:
- Ultra-low latency H.265/H.264 audio da video encoding iyakar goyon bayan 1080P@60 ainihin-lokacin kama bidiyo da ɓoyewa
- HDMI ko AV audio da bidiyo shigar, bayan shigar, fitarwa tashar tashar Ethernet ko fitarwa zuwa module mara waya, Za a iya daidaita ƙimar ɓoyayyiyar bidiyo da ƙarfi
- Goyi bayan audio labari da kuma dikodi mai juwuwa mai fitarwa
- Goyan bayan bidiyo biyu (HDMI + AV) shigar da shigar lokaci guda (wani zaɓi, tsoho shine HDMI ko AV encoding, zaɓi ɗaya daga tushen shigarwa biyu). )
- Yanar Gizo UI ko serial tashar jiragen ruwa UART AT umurnin don gudanar da tsari
COFDM mai watsawa
COFDM na'ura mai ba da hanya tsakanin hanyoyin sadarwa-demodulator zazzagewar
Bayanan Bayani na COFDM Vcan1776RX-H264
The last version of the TX RX board
CA: V6.5.6p
rx: 4.1.2p
FAQs
1. What should I do when I found one Tx module doesn't generate RF output power?
- Tambaya 1: Don Allah za a iya gaya mani lambar ɓangaren wannan bangaren, muna ƙoƙari mu nemo gida kuma mu duba. Amsa 1: Inductance ne mai suna LOH32PN2R2NNC.
- Ba da Shawarwari Abubuwan Dubawa: Idan hasken wutar lantarki na hukumar yana da kyau amma babu fitarwar RF, watakila bangaren da ke ƙasa Saukewa: TC1-1-13MX+ gabaɗaya ya lalace.
- Domin gujewa lalacewar wannan na'urar yayin sufuri (na'urar kanta tana da inganci), mun ba da odar kariyar jan manne ga wannan na'urar lokacin da muka tura ta.
- Injiniyan ya kuma ba da shawarar cewa ka bincika don ganin idan kebul ɗin ba ya kwance ko kuma ba ta da kyau.
- Da fatan za a gwada maye gurbin kebul na FPC mai haɗa allunan biyu
- We can provide spare parts if you're sure which one.
2. Kuna iya ba ni fayil ɗin umarnin UART AT don wannan ƙirar?
Tabbas
Da fatan za a duba hanyar haɗin da ke ƙasa.
Incoder Modulator Decoder Demodulator Module Parameter Kanfigareshan Umarnin COFDM AT Umurni
3. Ta yaya wannan COFDM Video mai watsawa da mai karɓa ke tallafawa kyamarar IP?
1. Ba shi da sauƙi haɗi zuwa IPC don a hanyar haɗin COFDM guda ɗaya. Muna da samfurin H264, wanda aka haɗa da shigarwar IPC ta hanyar faɗaɗa tashar tashar sadarwa, amma akwai buƙatu don samfuran IPC (ba duk samfuran IPC ba ne za a iya haɗa su da haɗin gwiwar COFDM), mun gwada IPCs na Hikvision, Dahuwa, da Xiongmai, kuma gano cewa tasirin haɗin gwiwa na Hikvision ne quite manufa.
2. Ba shi yiwuwa a cire kai tsaye HDMI CVBS encoder kuma haɗa kyamarar IP zuwa allon watsa COFDM. Haɗin COFDM na hanya ɗaya zuwa IPC yana buƙatar hanyoyin fasaha na musamman don ganewa.
3. Hanya mafi kyau ita ce ba da shawarar yin amfani da transceiver watsa hoto ta hanyoyi biyu, wanda ke goyan bayan kyamarar IP kai tsaye.
4. Idan abokin ciniki dole ne ya yi amfani da allon watsawa na COFDM don tallafawa kyamarar IP, akwai abubuwa biyu da ya kamata a kula da su.
5. Batu na farko shine matsalar fasaha. Muna buƙatar amfani da wata hanya dabam don ƙyale hanyoyin haɗin COFDM na unidirectional don amfani da IPC.
6.Idan kayi la'akari da IPC daga hangen nesa na rage farashin, you don't need to consider it. Saboda allon ɓoyewa da allon yanke hukunci har yanzu suna da mahimmanci, Ba za a iya ajiye kuɗin ba.
7. The second point is the customer's usage habit, wanda yanzu ba shine hanyar haɗin gwiwa ta al'ada biyu ba. Suna iya duba Bidiyon Kamara ta IP kuma har ma suna sarrafa PTZ na kyamarar IP ta shafin yanar gizon ko software na PC. (UART AT umarni).
8. Saboda wannan ƙirar hanyar haɗin mara waya ta hanyar COFDM hanya ɗaya ce; babu bayanan baya (watsa hanya daya kawai; ba za a iya watsa bayanai daga mai karɓa zuwa mai aikawa ba); the customer can only watch the video of the IP Camera and cannot reversely configure the IP Camera's parameters or control the PTZ of the IPCamera.
9. Wannan matsala ce da yawancin kwastomomi suka yi watsi da su da farko kuma daga baya suka koka da ita bayan amfani da ita.
10. So we don't recommend that the client choose a one-way COFDM transmitter and receiver for the IP camera. Muna da mafi kyawun bayani don kyamarar IP ta hanyar biyu video link transceivers.
4. Don Allah za a iya ba ni C/N da ake buƙata (BER = 2x10-4 bayan Viterbi) don daban-daban bandwidths 2, 4, 6, kuma 8 Mhz na haɗin bidiyo na HDMI da muke amfani da shi?
cofdm na'urar watsa bidiyo ta siga configuare kayan aiki
1. A halin yanzu, mai karɓar kawai yana ba da sigogi biyu na ƙarfin sigina da ƙimar kuskuren bit, kuma babu sigar C/N
2. Wadanne sigogi kuke buƙatar daidaitawa gwargwadon bandwidth daban-daban? Idan rafi ne na lambar bidiyo, allon rikodin rikodin watsawa kanta za ta ƙididdige ƙimar lambar rafi mai dacewa ta atomatik bisa ga sigogin mara waya da ake amfani da su a halin yanzu (bandwidth, GI, CR, da dai sauransu.), kuma za a sami ƙimar lambar bidiyo bayan canza bandwidth tare da allon sigina za ta daidaita ta atomatik.
3. tambaya, Idan ingancin kyamararmu ya isa duka biyun 4 MHz da 8 MHz bandwidth. A wannan yanayin, Ya kamata abokin ciniki ya zaɓa 4 MHz ko 8 MHz?
Amsa: Kayayyakin COFDM namu na hanya ɗaya yana amfani da bandwidth mara waya ta 4Mz ta tsohuwa, daidai da ƙimar bit na bidiyo na 3.12Mbps, wanda ya isa 1080p; Idan an canza zuwa bandwidth mara waya ta 8MHz a ƙarƙashin yanayi iri ɗaya, Matsakaicin bit na bidiyo ya ninka zuwa 6.24Mbps. Duk abokan ciniki na iya zaɓar tsakanin bandwidth mara waya ta 4MHz da 8MHz, ko da 6MHz kuma ana iya la'akari da shi.
4. tambaya: Wanne ya fi dacewa don wannan saitin tx+rx daga duban hankali?
Amsa: Domin hanyoyin sadarwa mara waya, ana iya la'akari da cewa karɓar hankali zai kasance mafi girma a ƙananan bandwidth mara waya. Daga fuskar karbar hankali, 4MHz>6MHz>8MHz
6. Kuna da kowane Modules Relay Relay Modules don Mai watsa Bidiyo na Mara waya da Mai karɓa?
Maimaita COFDM Relay don watsa bidiyo da mai karɓa mara waya
Tabbas
Da fatan za a duba hanyar haɗin da ke ƙasa
COFDM Relay Repeater module don drone UAV mai watsa bidiyo mara waya da mai karɓar Vcan1870
7. Za a iya aiko mani da ma'aunin hankali don 4/6/8 MHz lokuta? Misali, don QPSK, 1/2CR, 1/32GI what threshold reception RX's input level (dBm)?
Tashar guda ɗaya tana karɓar hankali:
-97+/-1dbm a QPSK 8 MHz,
-98+/-1dbm a QPSK 6MHZ,
Hankali ya ƙaru da 3dbm lokacin karɓa tare da eriya biyu
9. A ina zan iya sauke na'urar UDP? Muna ba da shawarar Splayer_v4.2_2020.6.6 wanda muke amfani da shi akai-akai.
Tsohuwar firmware mai karɓa tana goyan bayan mai kunna RTSP, wasu abokan ciniki sun fi son mai kunna UDP, wanda kuma za mu iya bayarwa, then RTSP player doesn't support. (RTSP da UDP na iya zaɓar ɗaya daga cikin firmware biyu kawai)
Da fatan za a sauke ta hanyar haɗin da ke ƙasa.
Splayer_v4.2_2020.6.6
https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing
Splayer_v4.3_2022.10.22
https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link
10. Kuna iya ba da akwatin ƙarfe don kare allon karɓar COFDM?
Tabbas, da fatan za a duba hoton da ke ƙasa.
Yadda ake haɓaka mai karɓar bidiyo na COFDM
Yadda ake haɓaka allon rikodin bidiyo na COFDM drone
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