Q:3.6mm and 6mm surveillance camera can see the screen angle is how much

3.6MM angle is generally about 87 degrees 6MM angle is 60 degrees. The scope of the monitoring is not the same, a clear distance is not the same, 3.6MM lens is generally the best clear distance of 7-8 m 6MM lens the best clear distance of 15 meters 3.6mm: 90 ° about 6mm: 60 ° 8mm: 45 ° about 12mm: 35 ° or so

Q:Wireless surveillance camera security is not? Easy to be peeped not? LAN and external network access speed how?

Your worry is not unreasonable, but a manufacturer's server has thousands of user information, not boring to specifically to peep at you (after all, you are not a public sensitive person), through the phone to visit, according to your use The speed of the network decision, according to the current majority of the network speed, there will be a certain delay and pause. If it is high, then the amount of data required to send more, of course, is more serious. If the inside of the LAN, then the speed will be much faster. As for the hard disk video recorder is good or computer card collection to see the specific situation. But in general, it is recommended to use hard disk video opportunities more stable and professional.

Q:How to clean the surveillance camera

Finally, wipe the lens with deerskin clean.

Q:Video surveillance camera pixel 1080P what it means

1080P is a video display format developed by the American Society of Film and Television Engineers (SMPTE).

Q:What is the number of lines that a surveillance camera needs to use?

If it is a network camera is a network cable on it, the network camera to install the pickup, audio, video signals transmitted through the network.

Q:Is the camera pixel taller the better?

But because of the current network bandwidth limitations, really very high physical pixels in the video screen may be cards, depending on your network. Now most of the camera on the market is 30W physical pixels, said hundreds of millions are blowing, a few can reach 130W physical pixels, but expensive, Logitech is currently the highest pixel is only 200W, so 800W, 500W those are Is interpolated, there is no practical significance.

Q:What is the 960h in the surveillance camera?

960H is a set of quasi-HD solutions defined and developed by Techwell and Sony, which incorporates Sony's new generation of 960H CCD Sensor and Effio solutions, and the DVR side uses Techwell's latest TW9960 analog quasi-HD A / D solution. 960H resolution of 960 * 576, relative to the traditional D1 (720 * 576) overall picture clarity (details) increased by 30%. For the original analog monitoring system to upgrade the upgrade, only the front-end camera and back-end storage replaced by 960H products, transmission part can continue to follow the original system coaxial cable, the system architecture and the original analog system basically unchanged, Engineering and users without the need for professional skills training can be the original D1 system upgrade to 960H quasi-HD, the overall increase in the screen 30% at the same time will not change the user's habits, suitable for limited budget but want to experience " User.

Q:The working principle of the camera with infrared light

Infrared emission diode (IR LED) infrared lamp principle is: by the infrared light-emitting diode matrix composed of light. Infrared emission diode from the infrared radiation efficiency of high materials (commonly used gallium arsenide GaAs) made PN junction, plus forward bias voltage to the PN junction injection current excitation infrared light. Spectral power distribution for the central wavelength of 830 ~ 950nm, half-peak bandwidth of about 40nm or so, it is narrowband distribution, for ordinary CCD black and white camera can feel the range. The emission power of the infrared light emitting diode is expressed by the irradiance μW / m2. The maximum radiation intensity of the infrared diode is generally in front of the optical axis and decreases with the increase of the angle between the radiation direction and the optical axis. The radiation intensity is 50% of the maximum value of the angle is called the half intensity radiation angle, that is, half power angle. The radiation angle of the infrared light emitting diodes of different packaging process models is different.

Q:Network surveillance camera, at home, the mobile client can be used, but after the connection network, the client shows the ID is invalid, what is the situation?

What brand of network camera do you use? Is it safe for Shenzhen? Their home is relatively simple I take this to you: you have to re-add equipment in the external network, you put the serial number of the device into the re-enter (rather than search, search out all the network), add good You can see

Q:How to make cable monitoring camera temporarily failed

The best way is to turn off the DVR video recording function. The second is to find ways to make the video line and the power cord bad contact and other methods. Or cut off the camera's power can also ah.