Among the many DVR models, there are only a few models that can support the input VGA interface to record the recordings of desktop computers, and the multi-channel VGA input recorders such as WHD-08 from Shenzhen Chunyuan Liying Electronic Technology Co., Ltd. WHD-17, WHD-18 and other models can support 4 channels, 8 channels and 16 channels of VGA input for HD recording. These video recorders not only support multi-channel VGA simultaneous input audio and video simultaneous recording, but also can control the start and turn-off time of any one-way video, support 1080P60hz HD input, not only support local hard disk recording, but also support LAN, Internet remote control and management. With rich network functions, it satisfactorily solves the requirement that customers need to record multiple VGA output devices at the same time! 1, 4 channels of VGA video input, 4 channels of analog audio input. (two), functional characteristics 1, embedded LINUX operating system, 16-bit true color graphical menu operation interface. The compression algorithm is upgraded to H.264 High Profile, and the advanced spatio-temporal filtering technology reduces the code stream by more than 30%. (C), machine mold specifications and accessories: (2) Technical parameters: Third, Chunyuan Liying WHD-18 (1) Product features: 1, compression format: H.264 HP Standard compression (with dual stream) Chunyuan Liying also has WHD-05 with 1 channel VGA input, WHD-06 with 2 channels of VGA input, and WHD-07 with 3 channels of VGA input. Multi-channel VGA input HD DVR is on the market, which greatly facilitates the need for multi-channel VGA simultaneous input video. It is a computer that needs to record multiple VGA outputs, record multiple VGA HD surveillance cameras, and simultaneously record multi-channel VGA HD cameras. Video conferencing, training and teaching recording, group gathering recording, court use, medical endoscopic laparoscopic surgery and other industries bring great convenience. The rich network protocol function is highly integrated with traditional network surveillance video recorders. New products are on the market, and we are looking forward to enthusiasm! For all kinds of high-definition video recorder details, please search online for "春æºä¸½å½±" to log in to the company network! Inkjet Polyester Canvas,Inkjet Print Canvas,Inkjet Printing On Canvas,Art Prints Canvas Guangzhou Quanxu Technology Co Ltd , https://www.skysilmattingagent.com
I. Chunyuan Liying WHD-08 
(1) Input and output interfaces:
2. Output interface: HDMI, VGA, and 1 analog audio output (1*RCA (200-3000 mV, 5 kΩ). When using VGA output, you must connect analog audio output at the same time, otherwise, there is no sound.
3. The machine supports simultaneous input of VGA audio and video recording, and supports simultaneous connection of analog audio, wireless microphone microphone or pickup input, and supports the mixing of the sound of the pickup and the analog audio input during VGA input, in line with the requirements of video conference recording. .
4, 1 network interface 10 trillion / 100 trillion / 1000 trillion adaptive Ethernet port.
5, USB interface: 3, support wired, wireless mouse, wireless network card, mobile hard disk or U disk backup. 
The boot screen is four screens, which supports one-click zoom in single screen, and supports the boot screen that was set last time by default. When set to single screen as above, it is still a single screen after booting. In the single-screen zoom playback, if you do not display the playback screen, just return to the four screens and enter the single screen again.
2. Support 4 channels of real-time 1920*1080P\60hz and the following parameters of high-definition video input recording; recording resolution 1080P@30 frames (SMPTE 292), 1080P25\30hz; recording file format is H264\AVI optional format. Video compression format: H.264 (High Profile). The video frame rate is 25 fps/ch (PAL) and 30 fps/ch (NTSC). The video stream is 128K~12Mbps. The video encoding format is VBR/CBR. Audio compression: G.711A.
Supports arbitrarily setting the recording start time of each channel, and arbitrarily turning off the recording of each channel.
3. Compatible with HDCP protocol, support recording various types of encrypted video.
4, support built-in two 3.5-inch serial port up to 3TB hard disk core. Recording with 1080P quality can record about 1800 hours. The original authentic brand of 3.5-inch serial hard disk cores are available, up to 3TB.
Each hard disk space: Video: CIF 4~5G/day* channel, D1 8~20G/day* channel; 960H 12G~30G/day* channel; 720P: 10G~42G/day* channel; 1080P ~40G/day * Channel; Audio: 691.2 megabytes per day * channel.
5, support boot automatic recording, timing recording, recording at any time, manual recording, motion detection recording, sensing alarm recording.
6. Support the setting of the single-subject recording time of each channel at will. It can be set up to form a video file every 2 hours, with a "good" image quality design. The file formed by 2 hours recording is about 3.2GB. There are six options for video quality. Generally set to "good" quality.
7. Supports no delay output synchronous display during recording. Support for setting and canceling recording time stamps.
8, support while watching and recording, while watching and watching; support time shift. Support 4 channels of simultaneous live broadcast, support one-button zoom single-channel playback, one-button single-channel audio playback. Support full screen playback.
9, at the same time as the video, you can look back at the video that has been recorded. Support for intelligent retrieval when looking back. Time/calendar search, event retrieval (motion detection event, external alarm event), etc. It can be displayed in different colors at a certain time and whether there is a video in a certain channel. Playback supports playback, pause, fast forward, fast rewind, shuttle control, previous paragraph, next paragraph, electronic zoom, etc., support mouse to drag the progress bar directly. Support for editing and labeling. Motion detection: 192 (16 * 12) detection areas can be set per screen; multi-level sensitivity can be set.
Playback quality: 4-channel real-time 1080P/720P/960H/D1/HD1/CIF/QCIF
Support 4 channels of synchronous playback, support one-click to zoom in single-channel playback, one-button single-channel audio playback.
10. Support external USB mobile hard disk or U disk copy backup. Support network backup, USB mobile hard disk, USB burning, SATA burning backup. Flexible choice of H264 or AVI format, AVI format backup supports 1080P audio and video synchronous backup, support for editing and editing of various editing software.
11, support LAN, Internet remote computer live broadcast, on-demand, look back, download, set management video start time, video quality, PTZ control, information query and other operations.
12, support LAN, Internet remote computer, shouji, tablet video, HD screenshots and other operations. Even if the recorder does not have a built-in hard disk, you can record it on your computer.
13, support Android shouji, ISO tablet multi-screen monitoring (partial shouji), shouji video, capture, PTZ control, device list save and other operations. Supported shouji types Symbian, Iphone, Windows mobile, Blackberry, Andriod, etc.
14, support network communication protocol: 1 RS-485, support a variety of PTZ TCP / IP, UDP, DHCP, DNS, PPPOE, DDNS, Email protocol.
15. Support connection to wired network, and also support external wireless network card for wireless connection network.
16. Support password setting management, support up to 10 users, and support real-time transmission of main stream and sub-stream.
17. The alarm supports video recording, pan/tilt, alarm output, and mail transmission. 4 way alarm input, 1 way alarm output.
18, the machine panel has a full range of buttons, support for wired and wireless mouse operation is more convenient.
19, power consumption: 12V4A power supply, power consumption <15 (without hard disk)
20, suitable for the environment: temperature 0 ° C - +55 ° C; humidity 10% -90%; atmospheric pressure 86kpa -106kpa.
1, the whole machine is a metal body, é» black tone, square design. The front panel is made of aviation radiation-proof plastic steel with built-in function buttons.
2, host specifications: length * width * height = 37 * 30 * 7 cm. The net weight of the main unit: 2.8 kg, excluding the hard disk.
3, the box specifications: length * width * height = 42.7 cm * 13.8 cm * 37.6 cm. Package gross weight: 5 kg.
4, accessories: 12V4A power adapter, power cord, mouse, hard drive data cable, hard drive power cord, hard drive fixing screws.
Second, Chunyuan Liying WHD-17 
(1) Product features:
1, support 16 channels of VGA video signal direct access, can automatically adapt to the front camera resolution
2. The audio supports external 16-channel analog interface input.
3. Support standard H.264 video compression algorithm and coding
4, support 16 channels 1080P real-time video compression and storage
5, support 16 channels 1080P real-time playback
6, support dual stream, support channel coding
7, support picture capture, video editing function
8, support VGA and HDMI high-definition output display, output resolution up to 1920 * 1080p30
9, support HDMI, VGA simultaneous output
10, support for the control of the gimbal, lens, support for external keyboard operation
11, the control signal transmission of the gimbal and lens adopts RS-485 interface
12, support 8 SATA hard drives, 1 eSATA interface hard disk video.
13, support 4TB and above large capacity hard drive, support hard drive sleep
14, support USB backup function, support backup AVI standard video
15, support NTP network time service, SMTP mail service 
1, compression format: H.264 HP Standard compression (with dual stream)
2, operating system: embedded LINUX operating system, GUI graphical user interface
3. Image coding control: image coding quality can be adjusted, variable code stream and limited code stream are optional;
Dual stream, each channel can be set.
4, monitoring image quality: 1080P (1920 × 1080) 30FPS
5, image dynamic detection: each screen can detect multiple areas
6, video frame rate: 1080P25FPS / CH (PAL) 30FPS / CH (NTSC)
7, image playback quality: 1080P25FPS/CH TOTAL: 480FPS
8. Recording mode: Support manual, automatic, dynamic monitoring, alarm trigger recording mode; can set more than 300 seconds to delay recording.
9, backup mode: U disk, USB mobile hard disk, USB burning, network storage and backup
10, operation mode: mouse; panel button; browser / client software
11, multiplex operation: real-time display, video, playback, backup, remote control
12, display mode: full screen / multi-screen split / picture-in-picture / round-robin
13, playback control: normal playback / pause / stop / fast forward / fast reverse / single frame
14, video query: date / time / alarm
15, local login: username and password
16, video storage: local hard drive, network
17, data backup: support AVI format through USB / Web / CMS
18, video input: 1080p@60fps, 1080p@50fps, 1080p@30fps, 1080p@25fps, 1080i@60fps, 1080i@50fps, 720p@60fps, 720p@50fps
19, video settings: resolution, quality, frame rate
20, audio input: 16 × RCA
21, video output: 1VGA, HDMI 1080P/30/25, 1CVBS
22, audio output: HDMI, 1xRCA
23, voice intercom: 1xRCA
24, network interface: 1 RJ45, 10M/100M/1000M adaptive Gigabit Ethernet port
25, network protocol: TCP / IP, SMTP, DHCP, DDNS, PPPoE, UDP, SSL, RTP, RTSP, NTP
26, USB interface: 2 USB 2.0 interfaces
27, RS485: RS485*1
28, alarm: 16 way alarm input / 4 way alarm output
29, hard disk interface: 8 SATA interfaces, 1 eSATA interface hard disk. Each interface supports hard drives up to 4TB in size.
30, network monitoring: shouji monitoring software platform: VSViewer, support Window Mobile, iPhone, iPad, Android, Blackberry, Symbian and 3G
31. Power supply: 250W, 100-240VAC
32, working temperature -10 ° C ~ +55 ° C
33, working humidity 10%-90%
34, size: 440 (W) x 410 (D) x 150 (H)
35, weight: 6.5kg (without hard disk) 
Chunyuan Liying WHD-18 HD DVR supports 8-channel HDMI 8-channel VGA input; each HD audio and video signal can select input video at the same time or separately, which is a representative model of multi-channel HDMI and VGA simultaneous input simultaneous recording. . The product adopts mature broadcast-grade HDMI\VGA high-definition digital standard interface, which realizes delay-free acquisition, preview and encoding of high-definition video. The product adopts the integrated design of H.264 compression algorithm, Linux operating system and embedded processor, integrates video and audio acquisition, compression, storage, network transmission, multi-channel PTZ control, alarm detection and other functions to ensure the high system. Integration and high reliability. The product provides a rich input and output interface, supports network, eSATA, USB 2.0, 3.0 high-speed backup, providing a strong guarantee for high-definition video applications.
1. Support HD video signals of 8-channel HDMI 8-channel VGA output HD camera, HD dome camera, etc., directly adapt to the front camera resolution
2, audio support external 16 analog interface input (even if HDMI with audio must also input analog audio).
3. Support standard H.264 video compression algorithm and coding
4, support 16 channels 1080P real-time video compression and storage
5, support 16 channels 1080P real-time playback
6, support dual stream, support channel coding
7, support picture capture, video editing function
8, support VGA and HDMI high-definition output display, output resolution up to 1920 * 1080p30
9, support HDMI, VGA simultaneous output
10, support for the control of the gimbal, lens, support for external keyboard operation
11, the control signal transmission of the gimbal and lens adopts RS-485 interface
12, support 8 SATA hard drives, 1 eSATA interface hard disk video.
13, support 4TB and above large capacity hard drive, support hard drive sleep
14, support USB backup function, support backup AVI standard video
15, support NTP network time service, SMTP mail service
(2) Technical parameters:
2, operating system: embedded LINUX operating system, GUI graphical user interface
3. Image coding control: image coding quality can be adjusted, variable code stream and limited code stream are optional;
Dual stream, each channel can be set.
4, monitoring image quality: 1080P (1920 × 1080) 30FPS
5, image dynamic detection: each screen can detect multiple areas
6, video frame rate: 1080P25FPS / CH (PAL) 30FPS / CH (NTSC)
7, image playback quality: 1080P25FPS/CH TOTAL: 480FPS
8. Recording mode: Support manual, automatic, dynamic monitoring, alarm trigger recording mode; can set more than 300 seconds to delay recording.
9, backup mode: U disk, USB mobile hard disk, USB burning, network storage and backup
10, operation mode: mouse; panel button; browser / client software
11, multiplex operation: real-time display, video, playback, backup, remote control
12, display mode: full screen / multi-screen split / picture-in-picture / round-robin
13, playback control: normal playback / pause / stop / fast forward / fast reverse / single frame
14, video query: date / time / alarm
15, local login: username and password
16, video storage: local hard drive, network
17, data backup: support AVI format through USB / Web / CMS
18, video input: 1080p@60fps, 1080p@50fps, 1080p@30fps, 1080p@25fps, 1080i@60fps, 1080i@50fps, 720p@60fps, 720p@50fps
19, video settings: resolution, quality, frame rate
20, audio input: 16 × RCA
21, video output: 1VGA, HDMI 1080P/30/25, 1CVBS
22, audio output: HDMI, 1xRCA
23, voice intercom: 1xRCA
24, network interface: 1 RJ45, 10M/100M/1000M adaptive Gigabit Ethernet port
25, network protocol: TCP / IP, SMTP, DHCP, DDNS, PPPoE, UDP, SSL, RTP, RTSP, NTP
26, USB interface: 2 USB 2.0 interfaces
27, RS485: RS485*1
28, alarm: 16 way alarm input / 4 way alarm output
29, hard disk interface: 8 SATA interfaces, 1 eSATA interface hard disk. Each interface supports hard drives up to 4TB in size.
30, network monitoring: shouji monitoring software platform: VSViewer, support Window Mobile, iPhone, iPad, Android, Blackberry, Symbian and 3G
31. Power supply: 250W, 100-240VAC
32, working temperature -10 ° C ~ +55 ° C
33, working humidity 10%-90%
34, size: 440 (W) x 410 (D) x 150 (H)
35, weight: 6.5kg (without hard disk)