常见
Current Location :
NEWS
问答
Q: what is the strong contrast between light and shade?
A: the camera is facing the outdoor with direct sunlight, which leads to too dark in the dark and too bright in the light. In addition, when the camera is installed in the corridor or narrow channel, the large focus monitoring camera should be used as far as possible, such as the 6mm and 8mm monitoring camera. Because the large angle monitoring camera is installed in the corridor, the wall on both sides of the corridor will be over exposed and the visual distance will be shortened.

Q: what are the reasons for normal daytime images and over exposure at night?
A: the branch in front of the surveillance camera is too close to the surveillance camera, which will lead to overexposure of the branch during night vision, and can not play the role of night vision monitoring. Therefore, the orientation of the surveillance camera must be adjusted to avoid plant cover.

Q: how much does a bus's on-board monitoring system usually cost?
A: the installation cost of a bus mainly includes the following: host cost, camera cost, hard disk, wire, installation cost. The price of different host equipment is different, and the price of different number of cameras is also different. At present, there is a big difference in host price in the market, because everyone adopts different schemes and structure costs.

Q: can our daily home cameras also be used as car surveillance cameras, because they seem to be very similar in shape.
A: because of the particularity of car camera installation, there are certain requirements for the installation of car camera, such as the installation of commonly used bus and passenger car cameras. In addition to configuring different lenses and chips according to the requirements of monitoring angle clarity, they also have the following characteristics:

(1) It is small and light in volume, easy to install, and can not affect the passenger's car environment;
(2) It is convenient to fix and avoid some artificial moving camera angle, which will affect the monitoring effect;
(3) The structure has certain earthquake resistance;
(4) There should be infrared lights to facilitate poor light or night monitoring;

Therefore, we suggest: small hemisphere with built-in infrared lamp, conch type camera, etc; In addition, for some special vehicles, such as urban management vehicles, police vehicles, cash vehicles, etc., different cameras should be configured according to the monitoring needs of customers.

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