FAQs

f=h*D/H(2) f: focal length of lens H: vertical length of the scene being photographed D: distance from lens to the scene being photographed h: horizontal height of camera screen Current focal length/minimum focal length is the current magnification value

Low illumination is related to sensor sensitivity and exposure parameters; sensor sensitivity, aperture, shutter speed, slow shutter speed

2252：3.75um*3.75um 2120/2130/2126/2133/2146/4204/4206/4225/4237/4252/4292/4290/4286/42100/42120：2.9um*2.9um 4133：2um*2um

The maximum focal length divided by the minimum focal length equals the magnification; For a 5-130mm lens, the shortest focal length is (5mm), the longest focal length is (130mm), and the zoom ratio is (26x)

The larger the field of view, the shorter the focal length

①1/1.8" target surface size 7.176mm*5.319mm diagonal 8.933mm 1/2.8" target surface size 6.058mm*4.415mm diagonal 6.46mm ②1/1.8" 150mm focal length is equivalent to 1/2.8" 100mm focal length, the conversion factor of equivalent focal length is the ratio of the diagonals of the two target surfaces

Visible light color state 390nm - 700nm Infrared black and white state 400nm-1000nm Laser full band Fog penetration state 780nm-1000nm

Network connection protocol onvif, HTTP private protocol, CGI interface protocol

Pelco protocol and Visca protocol are both serial port control protocols. Pelco protocol uses 485 interface to control external devices such as PTZ; Visca protocol uses TTL interface to control the movement internally.

Ethernet port, RS485, RS232, CVBS, alarm input and output, audio input and output, power supply

36-pin FPC cable for network cameras; 30-pin LVDS cable for digital cameras; For other interfaces, refer to the interface definition document

①The digital camera module supports both network and digital dual outputs; ②The digital camera module does not support the alarm function; ③The characters superimposed on the video of the network camera module are saved after restart, but the characters superimposed on the video of the digital camera module are not saved after restart;

Click Forgot Password on the login interface, select the file verification method, export the file, generate the key file and import it, and reset the password

① Make sure the object distance is greater than the minimum focusing distance. ② Can the manual focus control reach the clearest point? If it is still blurry, it can be judged that it is affected by the cover glass; if it can be clear, it is judged that there is a problem with the calibration curve or the internal components of the lens are offset, and it needs to be returned to the factory for inspection;

Enter the Edge settings interface - Default browser - IE compatibility: ① Set "Always" to open websites in Edge with IE ② Set "Allow reloading of websites in IE mode" to "Allow"

①Whether the network segment and DNS of the computer and the device are consistent; ②Whether there is a problem with the network cable; ③Computer network card abnormality; ④Firewall/anti-virus software restrictions

The conventional movement network delay is 200-300ms, and the shortest delay is set in the movement local configuration;

Whether the OSD character overlay display is normal, OSD display is normal, lens aperture problem, manually set the aperture effect; OSD cannot be displayed, then perform the following steps to troubleshoot; ① Whether the control download/call is normal, you can use IE9 or above browser to log in to the movement to check; if the control is not installed, reinstall it to see if it will be normal; if it is still abnormal, proceed to the second step to troubleshoot. ② Use the client (4200/ODM/VLC) to check whether the preview image is normal; if it is normal, it is a browser/computer configuration problem. Try to change the computer and then check; if it is not normal, proceed to the third step to troubleshoot. ③ Check whether the connection cable between the sensor board and the mainboard inside the movement is installed in place. It is necessary to disassemble the machine and re-plug the cable; if the cable is installed in place and there is still a problem, it needs to be returned to the factory for inspection and repair.

The line sequence of the LVDS interface of the Univision digital movement is exactly the same as that of Sony. Pin 1 of our camera module is on the right, and pin 1 of Sony is on the left.

① Check whether the port protocol is selected correctly, Hikvision protocol port 8000, onvif protocol port 80 ② Check whether the password is correct ③ Check whether the encoding format matches the NVR ④ Is it that the multi-screen small frame does not display the image or the single screen full frame does not display the image, check whether the resolution matches the NVR