In order to facilitate the masses of users in security engineering design and construction for the future accurately identify true and false products, correct selection to meet the requirements of engineering high-performance ball camera, we in the anatomy of the ball mill products of several key components and technology.

Key components

Integrated intelligent spherical camera is a kind of involved in the field of optical, mechanical, electronic and other high-tech products.

Integration of intelligent monitor and control system for spherical camera as a front-end equipment, image is clear and focused on whether the accurate quickly is an extremely critical index, which depends on the product chooses the first key components, integration of the camera. The ball machine manufacturer is recognized worldwide integration camera brands are: HITACHI (HITACHI), SONY (SONY), SANYO (SANYO). The level of brand integration of the camera, is famous for its color is sensitive, focus, quality is stable, the display resolution around line 470 in ball mill is the market of choice for most of the well-known brand manufacturers. Second level integration camera brand is given priority to with South Korea, SAMSUNG (SAMSUNG), the forest, LG, etc. Relative to the level of brand integration of the camera, the camera has certain basic color (or partial red, or slant blue), focusing on speed is slower than the former in around 50%, but the quality is stable, display resolution is about 470 lines, is the main choice of Han Guoqiu vendors would.

At present, some manufacturers use camera zoom ratio on the market the concept, misleading the users choice. They introduce the ball machine performance to the user, only speak camera is how many times, seems to be the larger the better, is not clear how much x optical zoom and how much the product of x digital zoom. In the actual image monitoring system, the real work is optical zoom multiples. Digital zoom if more than 2 times, almost don't have any use value, its strong Mosaic effect makes the actual monitoring image couldn't watch. Generally speaking, the longer the optical lens focal length zoom ratio is larger, the camera can monitor and see target is more far. However, due to the integration of the camera zoom lens group limited by the current international technical level, telephoto zoom lens groups has not exceeding 90 mm this difficulty. General 22 times the focal length of the optical zoom range is: 4-88 mm, and 23 times is 3.6 82.8 mm, 25 times is 2.5 62.5 mm, 27 times is 3.25 87.75 mm, it's not hard to see from the above data 22 times optical zoom lens group of coke is 88 mm is the farthest, this also is at present relatively popular market 22 x optical zoom integrated smart ball machine is one of the reasons. User when choosing the camera zoom multiples should require manufacturers to provide specific lens focal, telephoto parameters and should not be one-sided listen to its advertising in multiples of propaganda. Is also 22 x optical zoom, with HITACHI HITACHI integration camera for the best, it not only is there the quality and integration camera made in South Korea differences, there are a lot of price difference. HITACHI HITACHI integration camera price is almost the double of South Korea.

The integration of the second key components of spherical camera is to brush. It is the integration of smart ball machine in 360 degrees of continuous rotation at the same time, the right of the guarantee of video signals and control signals. In terms of stability and reliability, to brand as the best in the United States, the internal structure of gold, brush can ensure the service life of more than twenty million times.

The integration is the third key components of spherical camera motor (its corresponding mechanical structure and control technology). This is a integration of smart ball machine driver yuntai in horizontal and vertical movement of the power source, the difficulty is also in this ball machine design. At present the popular use of motor has two big series: dc motor and stepping motor. From the point of view of control and dc motor in the ball mill is in a stationary state, almost no work in the motor coil current. The characteristics of dc motor, which leads to the dc motor has little heat loss, life is relatively long, generally speaking, there are more than 10 years of life; Turn to control dc motor driving yuntai, ball machine is to be calculated from the current position to start acceleration, also want to consider the ball machine will stop in the next place of deceleration, but also consider the output torque of the motor, to ensure the smooth rotation of the ball mill, high requirements for the design of the controller. Currently only a handful of producers in the world to master the technology, and the working principle of the step motor determines its use pulse counting way driver, belongs to the discrete control system. If you want to control the ball mill rotates from the current position to the next place, under the uniform control mode, only need to calculate the number difference between two locations. Relatively, the control is simpler. Now more widely used mechanical step 1.8 or 0.9 degrees from the Angle of the motor, as long as the step design from the Angle of differential circuit (such as differential 16, 32 differential, 64 differential or 128 differential), Angle can be accurately controlled. To step away from the Angle of the same machine stepper motor, the higher differential count, the higher control precision, the differential circuit design difficulty. But must pay attention to, because of the step motor by differential pulse technology control rotation Angle and speed, even if the ball machine in static state, in order to keep the current position of the motor, the motor must retain certain working current. Therefore, stepper motor yuntai there is a big heat consumption, the service life of motor natural affected. Generally speaking, stepper motor ball machine service life only 3 to 5 years. The more general cooling method is to increase the fan in the enclosure, in order to form a good ball cover air cycle cooling system. This way, although to a certain extent, help to improve the stepping motor cooling, but once the fan fails, because of using ball cap seal structure design will be the ball machine damage caused by local overheat.