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Polyester Polyol is a type of polyol that is derived from the reaction between a polyol (such as glycerol or ethylene glycol) and a dicarboxylic acid (such as adipic acid or phthalic anhydride). It is commonly used as a raw material in the production of polyurethane foams, coatings, adhesives, and elastomers.
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The first step: Take out the bracket and prepare tools and parts: Plug, screw, screwdriver, hammer, electric drill, and other necessary tools; check the size of the plug and tapping screws according to the pre-determined mounting position. Check whether the screw of the bracket and the screw of the camera base are appropriate, whether the pre-embedded pipeline interface is handled properly, and whether the test cable is unblocked, and then enter the installation procedure after being ready.
The second step: take out the camera, according to the pre-determined camera lens model and specifications, carefully install the lens (infrared integrated camera does not need to install the lens), be careful not to touch the lens and CCD confirmed firmly fixed, turn on the power, Connect the host or field monitor, small TV, etc. to adjust the aperture.
Step 3: Take out the brackets, plugs, screws, screwdrivers, hammers, electric drills and other tools, and install the brackets according to the pre-determined position. After a firm inspection, mount the camera in the agreed direction;
Step 4: If you need to install the guard, after the second step, install the guard directly from here. 1. Open the shield cover plate and back plate; 2. Pull out the fixed metal plate and fix the camera; 3. Install the power adapter into the shield; 4. Reset the cover plate and back plate, straighten out the cable Fix it and attach it to the bracket.
Step 5: Insert the BNC plug of the soldered video cable into the socket of the video cable and confirm that it is firmly fixed.
Step 6: Plug the power adapter's power output plug into the monitoring camera's power jack and confirm the firmness.
Step 7: Connect the other end of the cable to the control panel or monitor (television) to ensure it is secure.
Step 8: Switch on the power of the monitoring host and camera, and adjust the camera angle to the predetermined range through the monitor.
Related technologies
There are four key points in analyzing the panoramic camera from the technical side of the product.
First, the quality of the camera will greatly affect the quality of the surveillance image; a good lens can reach HD, more than megapixels, and the higher the frame rate (the speed of animation transmission per second), the more clearly the monitoring target can be seen. Movement process and detail action.
Second, a good panoramic camera must have a high-resolution image sensor. Due to the wide monitoring range of the panoramic camera, the information volume of the image sensor must be very large. Unlike the general camera, it only needs to process a part of the screen in the monitoring scene. Therefore, whether the resolution of the image sensor is high or low is also the key to affecting the image clarity after the monitoring image is enlarged.
Thirdly, a panoramic camera using a fisheye lens has different imaging principles than an ordinary camera, and the image edge often forms a convex and distorted image. Therefore, it is easier to distort or distort the image than an ordinary camera, which affects the image quality. Therefore, how to correct and restore images and see the monitoring objects in the images is the most important problem of the panoramic camera. Theoretically, there are two ways to correct the problem of fisheye lens imaging distortion. One is to process information by the backend platform and restore imaging; the other is to directly correct the camera's built-in software and then transmit it to the monitoring backend. . In general, it is recommended to use the latter to solve the problem of fisheye lens distortion, which can relieve the pressure of network transmission broadband and backend storage and improve the efficiency of monitoring operations.
Fourth, you can use virtual PTZ to zoom in and zoom out details of stored images. In the field of security monitoring, PTZ controls the pan/tilt/left/right rotation and the lens change focus. It is used to automatically or manually track and lock the target. It tracks the target all the way within the monitoring range. The virtual PTZ used by the panoramic camera has a similar concept to that of the pan-tilt, except that the actual mechanized rotation does not have to be performed like a real pan-tilt, but rather the similar effect is achieved by zooming the image, thereby greatly increasing the monitoring system. The service life makes it easier for the monitoring personnel to operate and reduce maintenance costs.
Application area
The scope of application of panoramic cameras generally includes public places, industrial monitoring, traffic management, medical facilities, building monitoring, campuses, shopping malls, and entertainment and leisure venues. However, due to the short duration of the introduction of the panoramic camera, there are technical limitations, such as image distortion as described above, and the ultra-wide-angle effect of the fish-eye panoramic camera, although it can monitor a large area, but relatively speaking, Its focal length is very short, which makes the detection range greatly limited. The face can be seen within about 5 meters of the radius. If it is farther away, it will appear blurred.
Therefore, in practical applications, the panoramic camera is more suitable for places where space is small and the monitoring environment is simple, such as retail stores, small shopping malls, elevators, parking lots and conference rooms. Only one panoramic camera is needed, and no blind spots can be seen and detailed monitoring can be seen. As for the simple and empty environment, such as large venues, the use of panoramic cameras is a good choice because of the inconvenience of installing multiple surveillance cameras. However, if it is to be used in relatively complex environments, such as shopping malls, pedestrian streets, and crossroads with high traffic, panoramic cameras cannot fully replace conventional conventional cameras such as bolts and hemispheres, so they are generally recommended for use with conventional cameras. Complementary to each other.
Panoramic camera installation procedure
installation steps