Integrated Camera Common Problems Analysis
Application:
Automotive Industry – Engine: Crank Shafts, Oil Seals, Valve Needles, Camshafts, Rocker arm Guides, Water Pumps, Piston Rings, Valves, Expansion Bolts, etc
Automotive Industry – Universal Joint: Bearing Outer Race, Ball screws, Ball Joint Journals, Servo Steering piston & Valves, Toothed Racks, etc
Tool Making Industry: Screw Taps, Thread Rolling Dies, Drill Bushes, Broaches, Clamping Jaws, etc
Turbine Industry: Rotor Shafts, Guide Vanes, Rotor Blades, etc
All Types of CNC Grinding Machines
Form Dressing on Hoffler, Gleason, Niles, Kapp, Samp machines Diamond Dressing Rolls Diamond Dressing Rolls,Profile Roller,Bearing Profile Roller,Piston Ring Grinding Roller Xinxiang SKF machinery Co., Ltd. , https://www.facegrindingmachine.com
Gun-type cameras are mainly divided into two parts: the body and the lens, and the realization of high-performance depends on the perfect match between the body and the lens. If the user or construction technician lacks expertise, the combination of the camera and the lens is not reasonable enough to affect the performance of the camera. In the course of installation of general security systems, users or construction workers often use manual focus lenses. However, manual focus adjustment depends on human eyes and manual adjustment, so the efficiency and precision are not satisfactory; in addition, gun type This is susceptible to environmental factors such as moisture, vibration, thermal expansion and contraction, and the like. After use for a period of time, the problem of camera blurring, instability, and aging tends to occur due to the shift of the camera focus point.
2, back focus (back focus) adjustment problem
Due to the unevenness of the target surface of the camera image sensor and the difference in back focus between different lenses, the gun back focus (back focus) adjustment technology has always been a key technology for fixed gun camera manufacturers. The early back-focus adjustment method is mainly the way of the back focus adjustment ring + back focus lock screw, the lock screw is easy to damage the adjustment ring after many adjustments, affecting the stability of the back coke; the other way is the slope self-locking Adjustment mechanism, usually made of plastic materials, may also cause back focus to coke due to thermal expansion and contraction in extreme environments. In addition, some new methods use more precise and reliable thread focusing mechanisms, but the cost of the manufacturer's investment in the mold will be more.
For the problem of running out of focus after a period of use, the user and the manufacturer have solutions. Users (or contractors) usually send technicians to the site for processing. Monitoring of front-end equipment is far from distributed in the context of network monitoring. This will also greatly increase the cost of monitoring and maintenance. A few companies also include electronic back-focus adjustment mechanisms in cameras. However, this will undoubtedly increase the cost of the camera. 
3, night vision problems
Both the user and the manufacturer expect the camera to bring about the same excellent picture quality both during the day and at night. In order to realize all-weather monitoring, in addition to expecting high-sensitivity and high-sensitivity image sensors, manufacturers have to adopt various methods to enhance image effects in low-light environments. For example, day and night infrared cut-off dual filter automatic switching mechanism, color to black, 3D digital noise reduction, digital wide dynamic image enhancement technology.
However, no matter how low the minimum illuminance standard of the product is, the nighttime monitoring effect is still somewhat different from that during the day. To obtain a clear picture, the scene needs to be filled with light (white light, normal infrared, or laser night vision). As far as the gun camera is concerned, the impact of the lens on the camera's low illumination is also of decisive importance. In addition to the megapixel camera, the megapixel HD camera must have a corresponding megapixel camera lens design. Of course, an image sensor with excellent performance in low-light environments, a stable and reliable filter mechanism, a good lens, and an excellent image enhancement algorithm are all good gun camera products. The elements, but these are not affordable for low-priced products.
4, zoom problem
Many of the bolt shots currently used in the market are auto-iris manual zoom type, with focal lengths of a few millimeters to tens of millimeters, and the focal length needs to be adjusted and locked in place during installation. Therefore, the bolt can usually only be used in areas with limited monitoring scope, such as indoors, corridors, parking entrances and exits, etc., where monitoring positions are relatively fixed. Of course, gun-type cameras can also use electric zoom lens, but the electric lens technology is complicated and the production cost is high, so the current electric lens on the market is more expensive. The lens manufacturer adopts strict lens selection, adopts the alloy materials commonly used in aerospace technology, and uses high-precision CNC machine tools to make one-time processing. The lens and lens mount connection parts are tightened with fastening rings to improve camera stability. This kind of zoom lens is usually used in forest environment and fire prevention monitoring, border defense and other special occasion applications, ordinary users are difficult to popularize. In addition, due to the problem of network delay, manual control of secondary focusing problems after power zoom is undoubtedly a major problem.
