Coaxial video signals commonly used in surveillance systems are introduced:
Composite-Video, also known as AV or CVBS, transmission media: single shielded coaxial cable, transmission impedance: 75 ohms, connection standard: pin = coaxial signal line, housing common ground = shielded network cable, Physically, the composite video terminal has "core" and "skin". The "core" transmits a composite video signal, and the "skin" is the terminal housing (grounding, anti-interference).
Composite video There are two common interfaces, namely RCA terminal and BNC terminal: RCA terminal is commonly known as the lotus head and lotus seat, BNC terminal is the BNC head and BNC seat. BNC terminals are commonly used in monitoring and have the characteristics of stable connection and strong anti-interference.
Composite-Video Coaxial transmission distance and transmission material description:
75-3 coaxial line (about 100 meters) transmission distance
75-5 coaxial line (about 300 meters) transmission distance
75-7 coaxial line (about 500--800 meters) transmission distance
75-9 coaxial line (about 1000 --- 1500 meters) speed transmission distance
75-12 coaxial line (about 2000----3500 meters)
SYV75-3 transmission is effective within 300 meters.
SYV75-5 transmission better than 800 meters.
Note:
75 stands for resistance, followed by 3 and 5 for its insulating outer diameter (3mm/5mm).
SYV S-coaxial RF cable, Y-polyethylene, V-PVC.
The status of common monitors for Composite-Video signals:
Composite-Video signals are transmitted through the back-end of the coaxial cable and need to be displayed or acquired using a monitor or hard disk recorder. However, the current production of the monitor is low, the production cost is high, and the power consumption is large. The sex is not strong, so it is necessary to replace the monitor with a VGA LCD monitor.
Composite-Video monitor replacement scheme introduction:
The original method: Surveillance cameras transmit to the monitoring room through the coaxial cable, the signal is sent to the picture splitter, and the splitter output composite video is displayed on the monitor.
The new scheme is replaced: Surveillance cameras transmit to the monitoring room through the coaxial cable, the signal is sent to the picture splitter, the splitter outputs the composite video through the BNC to VGA composite video converter (AV-216BNC), and the BNC to VGA composite video converter outputs the VGA Signals, surveillance video will be displayed on the VGA LCD monitor, and another BNC to VGA converter outputs a loop-through signal to the hard disk recorder.
The new program features: It will have the advantages of convenient display equipment purchase, low cost, flexible video surveillance, and good display effect.
For more information about BNC to VGA composite video converter (AV-216BNC), please visit http://
GPS Trail Camera/ GPS Hunting Camera / GPS Forestry Camera
YX380A is a special forestry surveillance camera, with 3G (WCDMA) network and GPS positioning function intelligent infrared pyroelectric sensor camera. Built-in 2.4 inch TFT industry highlight color display, 2 Mega-Pixel HD fast reaction of CCD sensor, The camera uses pyroelectric induction of animal and human, Trigger and take HD images or smooth video, Transmit it to the server via WCDMA, In order to the user can quick access view the all photos by the smart mobile phone APP.
No matter where you are, How far away, you can instantly and quickly view the camera to the photo. If the camera did not detect in any animal or human body in low power standby power consumption is only 2.1 mA. The device use 8 sections 5th battery can standby 2 months. Once there is any animal and human into the detection area, the camera function will immediately start taking photos or videos ( start time is 1.2 seconds ).
YX380A built-in infrared lighting, high-definition CMOS camera chip can be used in the whole night to get a clear black and white image or video shot, while the light enough to shoot color photos or video.
The product has the IP68 waterproof and dustproof standard, can be suitable for the work environment bad mine, the construction site and outdoor field situation.
Compare with general monitoring camera, the feature is 3G communication function.Through the WCDMA network, the photos can be sent to users in 3G network mode. Customers use it more conveniently than other smilar products. Can inform the user monitoring area situation fastly.
Device has experienced the long-term test and improvement of high and cold area, the performance is stable and reliable, the production technology is mature, the actual working time has passed 10 thousand hours test.
Main Features:
1. Through the 3G (WCDMA) network automatically turn on/off the camera monitoring function
2. Can easily get photos (Android /IOS, computer WEP) through the smart phone APP, also can control the camera to upload photos in real time.
3. Built in 3G antenna, GPS antenna, the device body is more and exquisite.
4. Device body comes with full function keys, more convenient operation.
5. Keyboard light and fast down the design.
5. The keyboard design is light and handy quick page down.
6. Keyboard under normal circumstances, both to do the screen cover, to protect the screen, and also do the flexible drop down style.
7. Back with removable active bracket, Can adjust omnidirectional 45° degrees, compared to the market similar products can only be adjusted up and down, YX380A direction of regulation use better.
8. WCDMA / GSM (3G/2G) communication function, the real-time monitoring of the photos can be automatically sent to the user through the 3G/EDGE/GPRS network. Automatic support for 5 bands: 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz. support network of any country in the world
9. High quality image (2 Mega-Pixels industrial CMOS chip, One trigger, optional shooting 1 – 3 )
10. Fast response starting (from the target to the shooting, the time interval is less than 1.2 seconds), photography time can be set to 5 seconds - 60 seconds; delay time can be set to 0 seconds - 60 minutes
11. Long standby time (using 8 sections of alkaline batteries can be standby for 2 months under normal temperature)
12. Can take video: 640 x 480 pixel image
13. Use the TF card record (supports 1-32G card)
14. Ultra small volume, fan color, hidden strong.
15. Outdoor field protection performance is good, support IP67 standard, waterproof, dust proot design, can ensure the use in harsh environment
16. Night shooting does not emit light (night shooting with LED infrared 940nm, shooting is not light, not easy to exposure), 24 infrared LED supplementary lens camera brightness
17. Using 5th battery, easy to replace in the field, and support the 12V DC external power supply
GPS Hunting Camera
GPS Hunting Camera, GPS Forestry Camera, GPS Trail Camera, Trail Camera with GPS, Hunting Camera with GPS, Outdoor Scouting Camera, Wildlife Hunting Camera
Shenzhen Yixie Electronics Co.,Ltd. , http://www.aprsu.com