該HDMI視頻轉督察編碼板可以透過網絡端口Web UI查看當前參數配置，並根據應用需求進行修改. 透過網絡端口瀏覽器 HTTP://192.168.1.30/ (編碼板嘅IP地址)

1. 請從瀏覽器檢查網頁界面, 在下圖, 如果視頻源輸入正常, then it will show the CVBS or HDMI at the red arrow.

2. 請檢查HDMI編碼板LED指示燈是否閃爍.
如果佢係綠色並閃爍, 然後視頻輸入源工作正常, 如果唔眨眼, then please check the video input source is ok or not.

可以配置編碼比特率. 默認Web服務器設置為 0.0 表示自動 (3.12Mbps把喺內部使用). 客戶可以修改此值. 例如, 可以配置1Mbps~2Mbps甚至更低.

請透過以下連結下載.

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

1. We can modify the TS stream over UDP, but the TS stream is a non-standard TS stream that we have modified, which needs to be interpreted by our decoder board or special player (下載.).
2. If you agree with the RTSP protocol, VLC can play it; if you only agree with the TS stream (due to our non-standard modification), VLC cannot decode and play it, so we must use our special player. (下載.).
3. If you want to switch to the standard MPEG-2 TS stream to play with VLC, our software engineer can customize the firmware for you (this will take a few days) for an additional fee of USD500.
4. We use non-standard mpeg-2 ts streams primarily for the following reasons:
   1. The standard mpeg-2 ts stream has too much overhead outside the effective data, making it unsuitable for use with cofdm;
   2. The standard mpeg-2 ts stream is difficult to implement the aes encryption function;
   3. The standard mpeg-2 ts stream is difficult to achieve serial port transparent transmission (used with our decoder board)
5. If you don't need our decoder board, encryption and serial port transparent transmission, it is also possible to use standard mpeg-2 ts stream
6. It is recommended that you try our player; in real-time performance, our player outperforms vlc.
   The vlc player's algorithm does not take into account real-time performance; 相反, it will constantly adjust its cache (only increase but not shrink). 結果, the longer it is played, the longer the delay may be (especially when used with a wireless link)

1. SSL certificate is HTTPS protocol, our products do not support it now, only HTTP.
2. The default encoder board through the RTSP protocol, RTSP is not encrypted. You can set a longer password. And change it frequently.
3. If you want to encrypt, you need to use a pair of our codec boards (with encoder and decoder board as TX and RX), with UDP protocol, and they are using aes256 encryption. (Just like the bank level.)

系嘅, 確定, 請與我哋聯繫. Let me list your demand at the below.

1. We need to take a composite analog PAL video signal and transmit it using h264 over MPEG2 TS. 好呀！
2. The output must be playable through VLC. 好呀！
3. UPD://@1030. 好呀！
4. The output network stream packet should be 188 bytes standard mpeg2 TS. 好呀！
5. Compression scheme is h. 264, CVBS PAL input and IP output. 好呀！

How to upgrade the firmware of the CVBS PAL Analog or HDMI video input encoder board IP RJ45 ethernet output?

確定

請查看以下連結

COFDM UART AT command for the transmitter and Receiver.

或

Download the COFDM Transmitter UART AT command PDF.

COFDM Receiver UART AT command PDF.

These parameters are determined by the camera, only the sensor has it.

One more question: In the future is there any possibility to incorporate these features in the output side of encoder (if we get volume orders) ?

Our Answer: These are the parameters of the isp, and our current encoding boards are all bypass isp (because we don't connect the sensor, we don't need and can't use the isp), so we can't add these parameters.

系嘅, CVBS input support NTSC and PAL, Automatic detection and adaptation

1. 的 parameter configuration board tool is mainly used for the COFDM module function. If you buy this HDMI / CVBS to IP encoder Vcan1746 separately, you don’t need to buy a parameter configuration board tool, you can adjust the parameters through the Web UI.
2. 答案係肯定嘅, if you want to use the parameter configuration board tool to adjust some parameters of the encoder board, it is also possible.
3. 例如, the video encoding bit rate can be configured through the Web UI or changed through the extra parameter configuration board tool. The Web UI can configure all the parameters, and the parameter configuration board tool can only adjust some of them.

仲可以, 請查看以下連結

Vcan1746 HDMI CVBS Encoder Board Module Diagram

系嘅, 如果你需要, we can offer you the special firmware to have USB recorder function.

问题。: Does your USB DVR support playback on the encoded video?

答: 唔, The USB has the record function. You need to play it on a computer, it can not playback on the encoder board directly.

1. Do you mean HDMI or AV input, or do you need HDMI and AV to support two simultaneous inputs?
2. Currently it supports either HDMI or AV input.
3. Vcan1746 can only choose one of HDMI/AV at present, other boards can meet the firmware you need, but this board only supports SDI + AV/AHD output.
4. If necessary, you can evaluate the board with SDI + AV/AHD input to see if it meets your requirements. 如果係, our HDMI + AV input Vcan1746 can be made the same later.
5. If you really need to evaluate the HDMI + 影音接口, please first buy Vcan746 and burn the default shipping firmware for testing. HDMI and AV can be selected for use. If there is a certain amount of follow-up orders, we can develop a special firmware to support HDMI+AV input at the same time.
6. The display of HDMI and CVBS video input by two channels at the same time is similar to Hikvision IPC, which is divided into main bit rate and sub bit stream. The main stream corresponds to HDMI, and the sub stream corresponds to CVBS.
7. Now we can develop a new firmware to support HDMI and CVBS to live streaming at the same time, but the audio can only be selected from one of the two (the system selects HDMI audio/analog audio according to the video access situation).