Bus-car video recorder large trucks contained video recorder, wireless car video recorder (the YD-VS302-HD / the YD-VS304-the HD) is the excellent network of digital audio and video transmission equipment, it is using a high level of integration of the SOC chip (the ARM + the DSP), embedded Linux operating system on a single board audio and video capture, compression, network transmission and other functions to help users achieve 3G remote video monitoring system. The user-fast 3G network video surveillance. The H.264 compression algorithm to ensure that the smaller data redundancy, is more suitable for 3G networks; audio G711A coding, support two-way voice intercom / one-way voice broadcast; built-in Web Server, users can directly use Web; RS485 serial port can be accessed by a variety of PTZ control; do integrated I / O alarm input / output linked; wide voltage processing, support for 8-36V input voltage; the precise positioning of the GIS map; shockproof housing bracket, vehicle monitoring and personal build. This series of products need to use the 3G network video transmission and monitoring a variety of vehicle monitoring, such as: buses, trucks and other vehicle monitoring, this product is easy to install, easy to operate. 

 Product Features: 
 ◆ Adopt high performance, powerful programmable media processor SOC chip, built-in (ARM + DSP) and high-speed video coprocessor 
 Analog video input ◆ Support high sensitivity CCD or CMOS sensors (SONY, SHARP, etc.) 
 ◆ excellent H.264 video compression algorithm, and easy low-bandwidth transmission of high definition images 
 ◆ image QCIF / CIF / Half D1/D1 adjustable, allowing the NTSC / PAL system switch; the highest frame rate: NTSC system 30fps, PAL, system 25fps. Stream 36Kbit/s-3Mbit/s adjustable 
 ◆ built-in Web Server user using a standard Web browser on the front of the real-time monitoring and configuration management 
 ◆ reserved for the USB interface and comes with remote control, user-friendly local mouse or remote operation 
 ◆ Support remote system upgrade; built-in hardware watchdog to ensure the stability of the system 
 ◆ support dynamic domain name resolution, support for LAN and Internet (ADSL, Cable Modem) 
 ◆ to support a variety of network protocols: TCP / IP, UDP / IP, Multicast, HTTP, Telnet, 
 ◆ Support two-way voice intercom and one-way voice broadcast 
 ◆ network adaptive technology to adjust video frame rate automatically according to network bandwidth 
 ◆ video loss, motion detection probe alarm (can be set to alarm area and sensitivity) 
 ◆ RS-422 serial port and built-in a variety of PTZ decoder protocol, support bi-directional transparent transmission 
 ◆ support image shielding / image capture 
 ◆ Built-in real-time clock to ensure the correctness of the system is powered down after the restart time 
 ◆ user, logging, alarm management features 
 ◆ abnormal automatic recovery feature can automatically connect, network outages 
 ◆ Built-in multiple platforms connectionless protocol, and supports multi-platform seamlessly connect 
 ◆ full SDK support, allowing users to SDK call for secondary development