First, understand the demand
Nowadays, the use of surveillance cameras is becoming more and more widespread, and cameras such as financial systems and road systems are now required to be very demanding. It is necessary to be able to see the characteristics of human faces and the license plate numbers. Therefore, high-definition surveillance cameras are required in these high-demand applications, but general civil applications can only meet basic requirements. When choosing a surveillance camera, you need to select the right camera based on the monitoring needs.
Second, understand the product
At present, the entire surveillance camera market is generally used to call 480-line or higher cameras as high-definition cameras. However, the CCD and 480-line surveillance cameras used in 500-line surveillance cameras on the market are basically the same. The difference is that DSP is different. The newly developed 15-16 bit (bit) video digital processing chip like Shenzhen Division Technology Co., Ltd. has stronger data processing capability and faster image than the Sony 10-bit chip of the 480TVL camera on the market. Processing speed.
Third, index detection
For many people, the 480-line surveillance camera and the 500-line surveillance camera are difficult to distinguish from the naked eye. This time, special detection instruments are needed to detect the clarity, color reproduction, and noise of the camera. Ratio, low illumination, synchronization, color burst, subcarrier frequency and other technical indicators.
Fourth, functional
For a high-definition surveillance camera, not the picture quality is clear, the resolution of 540TVL is finished, there are many things, in addition to these also need to have some with wide dynamic, automatic white balance, image sharpness adjustment, super digital Noise reduction (signal to noise ratio), intelligent digital automatic metering compensation and other functions.
Five, operation settings
The current HD camera operation settings are mainly adjusted through menus and dialing. Cameras with menus need to pay attention to whether menu functions are rich, easy to adjust, and whether they can meet different complex monitoring environments. The Chinese menu is easier to debug than the English menu. At present, there are standard menus for Divida surveillance cameras such as daytime, day and night, night KTV entertainment venues, and custom mode. You only need to select one mode to easily respond to a variety of complex environmental needs, quickly and easily.
Six, data interface
In the actual work process, the surveillance camera may be damaged by the outside world or the machine is naturally damaged. Therefore, when purchasing a surveillance camera, it is necessary to observe whether its interface is diversified, whether it has an alarm interface, an audio interface, and an RS-485 interface. Wait.
Seven, the voltage range is wide enough
Before chatting with guests in remote mountains, they mentioned that the camera was burned. What are the reasons? Later, we investigated and found that it was caused by voltage instability. In response to this problem, Division has developed a wide-voltage surveillance camera that can work normally during 9V and 16V, greatly prolonging the service life of the camera.
Eight, installation and debugging
The installation and debugging methods of HD video cameras and ordinary video cameras are basically the same, but we must pay attention to the lens selection, because the quality of the lens is not good, or the matching is not good, which will affect the sharpness of the screen to a great extent. For example, the size of the lens, and whether it matches the surveillance camera must be considered. In addition, the back focal plane of the lens must be adjusted. The front glass of the protective cover must be made of good quality optical glass, which will affect the sharpness.
Nine, supporting products
For a whole set of surveillance systems, the camera is just a part of it, and there are more to be used with cables, arrays, hard disk recorders, video servers, various video encoders, monitors, etc. If the monitor is not good No matter how good the monitoring equipment is, the perfect picture quality will not be obtained.
Tenth, technical support
Finally, when purchasing a product, it is necessary to communicate with the monitoring camera manufacturer in advance and ask to remove the actual performance and technical parameters of the product, and also depends on whether this manufacturer has a strong technical team and marketing support platform, and future after-sales service. , Is it possible to get technical support immediately after a failure, and whether the product can be quickly repaired and returned to the factory?
Door Accessories
Door accessories include Automatic Door Kits , High Speed Door Motor And Control Box, High Speed Door Accessories, Other Door Accessories. We can sell any parts of these accessories.
Automatic door kits: Our automatic door kits include 1 motor+gear reducer, 1 belt,7 meter, 1 idle pulley, Microprocessor, 4 sets of carriage blue wheels, 2 sets of floor guides,2pcs remote control, 2 sets belt clamp mounting brackets, 1 power supply harness and cable connectors, 2 locator, Aluminum track whose length is 2.08 meter, 3 meter, or 4 meter. We are a manufacturer of automatic door openers that are designed to provide people convenience. Automatic Door Systems` drive to provide that level of service is but one of the reasons why automatic doors are becoming more and more popular. Our Automatic Sliding Door systems are modern, space-saving and elegant. Automatic sliding doors have many basic functions some of which include: automatic mode with full opening width and/or reduced opening width, and exit only for traffic control. The opening of automatic doors can also be adjustable to make the opening width smaller or larger. Important safety functions such as safety sensors prevent the door from shutting if persons or objects are in the detection zone. If the door leaves are inhibited when closing, they are immediately re-opened or if the door leaves are hindered when opening, they are immediately stopped by a safety automatic reversing mechanism.
High Speed Door motor and control box: Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller. German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning.
high speed door accessories: Driving system: High speed door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box. Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light.
Other door accessories: Sectional door accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
For accessories detail information, please kindly check our detail classify.
Door Accessories,Automatic Door Kits,High Speed Door Accessories,Sliding Door Operator
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffastdoor.com