How to buy a high-speed dome camera?

There is no doubt that the customer is most concerned about the price issue, but the price is definitely not the only factor in choosing the product. The customer must consider the comprehensive factors, weigh the various factors such as the performance and price of the product, choose the performance index to meet the requirements of the project, and work stably. Reliable, affordable products are the wise choice for customers.

The service quality of the products must also be summed up in the product quality. The service quality includes the maintenance or replacement after the product has quality problems. It should also include the pre-sale, sale and after-sales complete service system. Jiuding Group is willing to cooperate with customers to explore the best solution for the project before the sale, provide customers with free product training, and fully demonstrate the product's performance characteristics. After-sales service guides customers on how to properly install and debug equipment, and provides timely and thoughtful maintenance services to solve technical problems encountered by customers. Even though Jiuding Group often launches new products, it still has good hardware and software maintenance guarantees for the products it has already sold.

The shape of the high-speed ball has a global shape, a cylindrical shape and a hemispherical shape. The installation methods include a hanging type, a wall-mounted type, and an embedded type. An engineering firm or user can choose a suitable high-speed ball according to their actual conditions. A good high-speed ball should have the characteristics of exquisite appearance, make it a certain degree of visual modification, and no matter what kind of place is installed will not cause special attention, make it more hidden, will not affect the monitoring site The overall layout effect.

High-speed dome camera is a kind of camera equipment. The performance index of the camera is an important choice parameter. Most of the cameras currently used in the market are integrated cameras made in Japan and Korea. When selecting a fast dome camera magnification, do not consider the distance of viewing in multiples. Do not choose the focal length of the lens. For example, a 16x camera (up to 63mm) will not have 10x of 8-80mm. Variable lenses (up to 80mm) look far. In addition, when selecting the magnification, the optical zooming should be the main reference, and the electronic zooming should not be taken into account because the electronic zooming is performed under the premise of reducing the sharpness of the image.

In the choice of camera illumination, 18 times SONY and 23 times HITACHI use different processing methods, but the use of the effect is basically the same, when the outside light is lower than the color image can be clearly imaged in front of the border illumination, no manual control, The fast dome camera can automatically recognize and automatically switch to black and white images (some manufacturers can also provide manual switching). Both of the above mentioned products can be up to 0.01 Lux in black and white video.

The high-speed dome is the core mechanical part of the high-speed dome camera, and its reliability determines the stable and uninterrupted performance of the high-speed dome camera. The head part of the pan tilt is more convenient due to the stamping assembly design, so most products now use this structure. However, on the other hand, due to the high dimensional requirements of dozens of stamped parts in this composite structure, and problems in installation, transportation, and use, etc., there are some fastball manufacturers that are now adopting higher design requirements. The cast aluminum frame design or injection molding frame design improves the consistency of the batch product and the rack stability.

The motor used in the high-speed dome camera should also pay attention to. Nowadays, most of the motor used is a DC motor and a stepping motor. The DC motor operates at a low noise and is relatively balanced, but the product cost is high, the control system is more complicated, and the service life is relatively high. Short, so the current manufacturers have begun to use a lot of stepper motors. Stepper motors have many advantages such as low manufacturing cost, accurate positioning control, long service life, etc., and solve the problems of control and noise. Through very high subdivided motor drive methods, the image jitter in the low-speed, high-power state is minimized. Reduce the visual fatigue of the monitoring staff. In addition, the high-speed dome camera is also superior to the ordinary pan/tilt in terms of function. Its variable-speed rotation can easily capture the moving target; the infinitely-rotating conductive ring design ensures the speed of capturing the target and improves the system's speed. Life-time problems caused by the connection pull; 180-degree automatic rotation solves the problem of losing the moving target directly below. Therefore, although the integration of Jiuding High Speed ​​Dome Camera is more complex, it uses a reliable multi-function PTZ system.

The brain of a high-speed dome camera is a decoder. It is also the only component that is connected to the external control system. All its functions are achieved through its decoding. Attention should be given to the selection and collocation in order to avoid uncontrollable defects. Happening. The handshake between the decoder and the control system commands is achieved through the same internal conventions, which is commonly referred to as the communication protocol. The user should select a dome camera of different communication protocol type according to the type of control protocol using the controller.

The protocol type of the controller must be the same as the protocol type of the dome camera before it can be controlled. Otherwise, the dome camera will not be controlled. Usually, when the user has selected a certain control system, such as the Jiuding high-speed ball system uses the matrix controller of the PELCO protocol or the hard disk recorder with this protocol, the PELCO protocol must be selected when purchasing the dome camera. Fast dome camera, otherwise it will appear uncontrollable. The communication protocol of the imported fast dome camera is basically self-contained, which brings certain limitations to the user's choice of control system. Now there is a fast dome camera with multi-protocol integration that can integrate a variety of commonly used communications at home and abroad. The agreement allows customers to easily combine systems.