High Speed Dome prospects
With the "Green City" ever-expanding, high-speed ball faster and
faster development of the camera, with its unique features is its 360 °
rotation function, can Jiance to all regional areas; with easy
installation, simplifying the wiring and management process ;
integrated, high level of intelligent high speed dome camera features
to become the darling of the field monitor. A few years ago, high-speed
global market is mainly imported brands command the world. Integrates
multiple high-speed ball is part of the equipment, the price usually
increases than the traditional PTZ camera, the shield must be high.
Therefore, high-speed ball in the user's mind is the high end and
expensive, so little to attract the buyers. Today, the domestic
high-speed ball technology, the quality is relatively mature. In the
price, whether it be domestic or imported products, are adjusted
annually, imports high-speed ball from year 5 to 6 per million price
reduction to 1 to 2 million; domestic high-speed ball from low to high
price allocation Each area is about 3000 ~ 7000 per month. Most do not
have high-speed ball past the place, such as residential, roads, etc.,
have begun to use more and more. It can be said now could be seen in
various places high ball figure, such as urban surveillance, stadiums,
ports, metro, campus, building, hotel, etc.. Application of these areas
were to some extent, increased market capacity for high-speed ball.
In recent years the majority of the industry reflects the country "safe
city" construction is very active high-speed global markets one of the
most important factor. Because in the outdoor urban monitoring
projects, integrated cameras and camcorders
are the leading high-speed ball, especially in city traffic, high-speed
ball is widely promoting the use of front-end equipment. According to
industry estimates, from the makers of several major movements of
foreign giants to purchase the number of integrated view of movement,
the current annual demand for high-speed ball is about 6 to 7 million
units, while with the "Green City" in the implementation of this A
number will further increase. The reason why high-speed ball control in
popularity in the city, with its own characteristics are inseparable.
If the intersection control, the speed the ball can be 360 ° rotation,
no blind angle, the intersection of the four directions can be
"balanced" to, and track, respond to events quickly. When someone runs
a red light, the speed the ball will automatically rotate to quickly
monitor the intersection in all directions. If an ordinary camera, you
need to rotate people. In addition, in some situations need to repeat
the monitoring action, the high-speed ball preset position can meet the
requirements of the monitor functions. In view of these advantages of
high speed ball in the ongoing "Green City" building large projects,
some will use hundreds or even thousands of ball machine. Addison
security engineers that the TradeTang high-speed ball front-end
equipment in urban monitoring applications account for about 1 / 4. The
current construction of 21 pilot cities is already used in 10 to 20
million high-speed ball, with the other cities have started monitoring
the project, use will increase. The total application from the current
situation, as "Green City" is still in the initial construction phase,
high-speed ball not really large area, high-volume applications. Such
as Shenzhen, Guangzhou and Shanghai, has just opened the current
high-speed ball, not to large-scale application period. "Green City"
building capacity for high-speed growth of global markets, but also
increased market awareness of the high-speed ball and the ball
manufacturers to bring high-speed business. "Green City" building is
the large-scale government-led projects, the high-speed ball
manufacturers will not miss these items. The Security 2005 exhibition
in Shenzhen, you can definitely feel that more and more competitors
have joined the battle for this market into.
Speed ball is a built-in integrated camera, PTZ, the composition of the monitoring system decoder. Integrated camcorder accessories
in matching high-speed ball directly affect the image quality.
Currently, the overwhelming majority of foreign companies to purchase
one vendor movement. Decision performance PTZ control hardware and
software elements. Software has a control circuit, sub-micro-step and
the operation of error correction algorithms, hardware with the motor.
As the high-speed ball, down, left and right rotation are driven by two
motors, motor speed will directly affect the performance of the ball's
speed, position and stationary. Therefore, by controlling the number of
pulses can precisely control the angle of head rotation and accurate
positioning. Stepper motor control in the way, now most manufacturers
are using high-speed ball-chip microprocessor to the movement direction
of the stepper motor and stepper control the number of steps. With the
privacy block, self-learning features such as high-speed ball
trajectory in the popularity of a single chip has been found difficult
to meet the increasingly feature-rich, high-speed ball, you must use
three or more intelligent control, whereas use of DSP as the processor
will also be a direction.
The development of high speed dome camera
in the initial stage, people buy products, the main consideration of
its general operating functions, such as the camera's focal length
range of pixels, horizontal resolution, signal to noise ratio,
adjusting shutter mode, White Balance Auto Tracking mode, backlight
compensation and the ability to automatically switch illumination;
Secondly, head for head, to consider the horizontal and vertical angle
of continuous operation, speed adjustment range, including the rapid
reaction capacity, high reliability and life expectancy, low speed
movement the stability of the image is jitter and other factors; the
preset point on the ball machine storage capacity, mainly to consider
the absolute head position, zoom position memory location precision.
However, as the popularity of high-speed ball-type camera, the user
awareness of the rising and people on special occasions, Yun Yong and
other comprehensive factors considered, high-speed ball camera Gongneng
Ye constantly be updated and Wan Shan. If the ball has added a lot of
high-speed multi-alarm input, telephoto, as the control, the system
automatically learning and other functions.
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