HD 휴대용 COFDM 모바일 비디오 무선 전송 시스템 사용 설명서
COFDM Mobile Video Wireless Transmission users manual for COFDM-908T and COFDM-912T
Users Manual for COFDM Mobile Video Wireless Transmission
This is a manual for COFDM-912T and COFDM-908T. If the HD input is mentioned in the text, it refers to the COFDM-908T model. If the SD input is mentioned in the text, it refers to the COFDM-912T model. Please Pay attention to the distinction.
목차
1. 풍모
- 고도로 통합, 모듈 형 설계
- COFDM 변조 기술 채택, H.264 이미지 코딩 기술
- Can transmit one 1080P HDMI signal and one unidirectional data up to 230400Kbps
- 낮은 대기 시간, the minimum end-to-end latency is 350ms
- 모든 라운드 통신, 벽을 구축 두려워하지
- High-speed travel-to-travel communication,
- 송신기 방열판 유형 알루미늄 케이스, shockproof and impact resistant
- 비 가시선 (NLOS) 모바일 전송, the transmission distance of 2W power is not less than 30 kilometers under the condition of no interference, the transmission distance of 5W power is not less than 50 킬로미터, and the transmission distance of 10W power is not less than 80 킬로미터
- 최대 이동 속도는 600Km / hour에 도달 할 수 있습니다. (정확히 잰)
- 오디오 및 비디오 신호의 동시 수신, 고화질 HDMI1080P 멀티 포맷 옵션, 표준 화질 출력 DVD 이미지 품질
- 수신기는 비디오 녹화 및 백업 기능을 실현할 수 있습니다.
- 128-비트 AES 암호화 및 복호화
- Can provide full customization
2. 신청
This product is mainly used in technical reconnaissance and evidence collection of public security and safety inspection departments, real-time picture transmission of drones and unmanned ships, radio and television broadcasting, broadcasting live broadcasting: 방송 분야, 스포츠 방송, 소셜 뉴스、라이브 공중、사진관, mountaineering expeditions and more. 도심 등 다양한 복잡한 환경에서 고화질 영상의 실시간 모바일 전송에 적합, 바다, 그리고 산.
3: Parameter Indicators
1: 송신기 (only standardized pictures, except for customization)
Product parameters:
| 조정 | COFDM |
| 작동 전압 | DC11V~DC17V |
| 현재 작업 | 1W：≤1.3A DC12V，5W：≤2.5A DC12V，10W：≤5.2A DC12V， |
| 제어 인터페이스 | Standard RS232 interface, 8 데이터 비트, 1 정지 비트, 짝수 패리티, 전송 속도: 19200 |
| 투명한 데이터 인터페이스 | COFDM-912T-COFDM-AV-720P-무선-비디오-송신기-구성 보드, 8 데이터 비트, 1 정지 비트, 홀수 패리티를 지원, 짝수 패리티, 무선 패리티, 전송 속도: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 、230400 |
| 암호화 | COFDM-912T-COFDM-AV-720P-무선-비디오-송신기-구성 보드 |
| 변조 매핑 | QPSK（4QAM）、16QAM、64QAM |
| 순방향 오류 정정 | 1/2 2/3 3/4 5/6 7/8 |
| 보호 구간 | 1/32 1/16 1/8 1/4 |
| 사업자의 수 | 2케이 |
| 주파수 대역폭 | 2/3/4/5/6/7/8M 조정 가능 |
| 수송 스트림 | 2000COFDM-912T-COFDM-AV-720P-무선-비디오-송신기-구성 보드 |
| 송신 전력 | 1W/5W/10W |
| 전송 주파수 | Any frequency can be customized, the frequency is continuously adjustable, the adjustable range is ±20MHz, and the step is 1MHz |
| 전원 평탄도 | Less than 0.2dB in 10MHz band |
| 어깨 비율 | The shoulder-to-shoulder ratio is better than -28dB at full power output |
| second harmonic | ≤-45dB |
| MORE | 32dB |
| 입력 비디오 | 720×480 60나는(NTSC), 720×576 50나는(단짝), 720 50피, 720 60피, 1080 50나는, 1080 60나는, 1080 24피, 1080 25피, 1080 30피, 1080 50피, 다양한 모드가 적응. |
| HD 인터페이스 | HDMI |
| 비디오 인코딩 형식 | H.264 |
| 보호 표준 | 모든 알루미늄 라디에이터 유형 섀시, 내식성, 충격 방지 설계 |
| 전체 크기 | 102*80*30mm（1w)/102*90*30mm（5W）/188*47*34mm（10W）/228*55*40mm（20W） |
| 총 무게 | ≤0.20KG （1W） / ≤0.27KG （5W） ≤1.5KG （10W） ≤2KG （20W） |
2: 리시버
Product parameters:
| Portable multi-bandwidth HD receiver parameters | |
| 주파수 범위를 받으십시오 | 170-860MHz VHF&UHF |
| 주파수 대역폭 | 2/3/4/5/6/7/8메가 헤르츠, 선택 과목 |
| RF 입력 레벨 | -94dBm ~ -15dBm (8M 대역폭에서)/-98dBm ~ -15dBm (at 2M bandwidth) |
| RF 입력 임피던스 | 50 옴 |
| RF 입력 커넥터 | N 헤드 |
| 복조 방법 | COFDM |
| Constellation way | QPSK, 16QAM, 64QAM (선택 과목) |
| 순방향 오류 정정 | 1/2,2/3,3/4,5/6,7/8 (선택 과목) |
| 사업자의 수 | 2케이， |
| 보호 구간 | 1/32,1/16,1/8,1/4 (선택 과목) |
| 비디오 디코딩 | MPEG-2MP@ML/H.264 |
| screen aspect ratio | 4:3 16:9 |
| Video output image | 720*576@8MHz 1080P@60P、50피、50나는、30피、 |
| 오디오 출력 모드 | Stereo unbalanced 300/ 200mv |
| 오디오 출력 | 2오디오 출력 + 2비디오 출력 |
| 작동 전압 | AC220V/DC12V ＜0.4A |
| 작동 온도 | -20℃ ~ + 50 ℃ |
| physical dimension | 136*115*35mm non-standard all-aluminum shell |
| 장비 무게 | 0.35킬로그램 |
4: Instructions for use
1: 송신기
- Functional area description
“개미”: Transmitting antenna interface, please connect the antenna before powering on
“HDMI”: High-definition video input interface, input below 1080/50P
“Ctrl 키”: Transmitter tuner connection interface
“직류 12V”: DC12V power input port. “+” is the positive pole of the power supply, “-” is the negative pole of the power supply
“DC” 이다: Power indicator light, when the light is always on, it means that the power input of the transmitting module is normal
“TS”: Video input detection indicator light, this light is always on to indicate video input and normal encoding
- Parameter Configuration Description
Connect the transmitter parameter adjuster, press the “MENU/OK” key to enter the menu, the encryption key and data serial port parameters are displayed first, press the left or right key to move the cursor, and the up and down keys to adjust the parameters
After the parameter setting is completed, 프레스 “MENU/OK” to enter the next menu, and the interface is displayed as shown in the figure
Press the left or right key to move the cursor, press the up or down key to adjust the required parameters, the interface prompts as shown in the figure
After all parameter settings are completed, press the “MENU/OK” key to confirm, and the display will be as shown in the figure.
After the setting is completed, the parameters are written successfully, and the display is as shown in the figure
- General Troubleshooting
에이: The light is off after the power is turned on: Check whether the power input meets the standard
비: “TS” indicator light is off: Check the video input connection cable, check whether the video input format conforms, and check whether the camera is interfered with (you can judge by holding the antenna with your hand).
기음: The temperature of the transmitter is very low: check whether the current is normal (the deviation can be ±0.2A within the standard current).
디: Three lights are always on, and one of them is super bright: it means that the transmitter has failed the detection, and you can try to power off and restart (uncommon)
2: 리시버
- Functional area description
“RF in1” “RF in2”: receiving antenna interface, it is recommended to connect the antenna and then turn on the power switch, because the static electricity of the human body may cause the receiver to crash.
“HDMI”: 비디오 출력 인터페이스, the output video format can be adjusted through the “HDMI” menu on the control panel.
“직류 12V”: 전원 입력 인터페이스, please strictly follow the power supply voltage requirements, and overvoltage input is strictly prohibited
“ON / OFF”: power switch.
“USB”: video storage interface, when the U disk is inserted, press the “EXIT” button to start the video recording, after the recording is successful, the video display will display the video recording time, and the stored file name is “TS”.
- LCD parameter description
에이：CH01 UNLOCKED（LCKED）
“CH01” means the channel number of the receiver, “UNLOCKED” means the received signal is unlocked, 과 “LCKED” means the signal is locked. “CH00” of the receiver is the initial writing channel, and the default channel corresponding to the normal operation of the transmitter is “CH001”
비： FREQ：602.0메가 헤르츠
“602.0메가 헤르츠” is the receiving frequency of the receiver, this frequency must be consistent with the frequency set by the transmitter, otherwise the receiver will not search or receive the signal from the transmitter
씨： BW:6.0메가 헤르츠
“BW” 대역폭, as shown in the figure, “BW: 메가 헤르츠” is understood as the RF bandwidth is 6MHz, this bandwidth must be consistent with the bandwidth set by the transmitter, otherwise the receiver will search for or cannot receive the signal from the transmitter
디： 독립 단기 치료소:1/2
“독립 단기 치료소: 1/2” is the channel error correction, this parameter synchronizes the parameters set by the transmitter, and the receiver cannot be modified
이자형： GI:1/32
“GI:1/32” is the channel guard interval, this parameter is set by the transmitter synchronously, and the receiver cannot be modified
에프:MAP: QPSK
“MAP: QPSK” is the modulation mapping, this parameter number is set by the transmitter synchronously, and the receiver cannot be modified
지： SNR:0.0dB(SNR:15.0dB)
“SNR: 15.0dB” is the signal quality (그건, the signal-to-noise ratio, the larger the value, the better). 언제 “0.0dB” is displayed, the signal quality is 0, and the receiver will not be able to lock
“(SNR:15.0dB)” means the receiving signal-to-noise ratio is greater than 15dB. In the “QPSK” modulation mapping state, as long as the signal-to-noise ratio is greater than 6dB, the receiver can lock
시간: PW：-72.1dBm（PW:-72.1)
PW is the received signal strength, (reference level value), the farther the transceiver end is relative to the distance, the weaker the signal strength is, and the larger the displayed value is, when the transmitter is not turned on, if the signal strength of the receiver is greater than -90dBm (such as -79.7dBm), it can be considered as adjacent frequency interference
- Parameter Configuration Description
Power on the receiver, and press the “MENU/OK” button to enter the menu, the first display is the menu of adjustable parameters, if you search for a specified frequency, directly press the “MENU/OK” button to enter the menu; if you want to remove the channel, press Press down to select “ListanbulChannel”, 그런 다음 누르십시오 “MENU/OK” to enter the menu operation; if you need to change the video output format, move the cursor to the “HDMI Mode” 메뉴, 프레스 “MENU/OK” to enter, and select the video to be output After formatting, press the “MENU/OK” key to confirm.
The frequency search method is as follows. After entering the frequency setting menu, the interface is displayed as shown in the figure. Press the left or right key to move the cursor, press the up or down key to adjust the frequency, RF 대역폭, and secret key that match the transmitter, and press the “MENU /OK” key to search. Note that the transmitter must be turned on at this time, 그렇지 않으면, the receiver will not be able to lock because it cannot find the signal.
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When the search is completed, 프레스 “MENU/OK” 확인, and the channel is saved in the register of the assistant board, as shown in the figure. To save the channel to the receiver register, press the “MENU/OK” key and the right key at the same time.
After the receiver parameter setting is completed, the functions of the panel keys are as follows
"↑”“↓“: each individually selectable receiver channel “CH**”
"←”“→“: You can choose to view the hidden parameters of the receiver
“EXIT”: start and stop recording
- 비디오 기능
Insert the storage device into the “USB” interface of the receiver, press the “EXIT” button to start recording, and a blue recording time box will appear on the upper left corner of the video display as shown below
- General Troubleshooting
에이: The value after the receiver displays “-” is very low (Tx is not turned on): It means that the current channel has serious electromagnetic interference, and the normal value is -90- -100.
비: Cannot record video: check the U disk or replace the U disk.
기음: No signal received: Check whether the channel frequency is consistent with the transmitter.
디: No video output: Check the connection line, power off, and restart to check whether there is a boot interface.
