Speed dome technology panorama of intelligent network night vision is direction (1)

Speed dome is a related optical, mechanical, electronic, and other areas of high technology products, its high-speed scanning preset, large ratio of low-speed capture, preset, and privacy zone mask, direct control properties, click tracking, alarm linkage, Chinese characters, overlay, wide dynamic capabilities of both good and bad to decide the quality of a high speed dome, while supporting all performance basis mainly with zoom lens with integrated camera, electronic slip ring and high-performance stepper motor performance.

Speed dome of birth history is not long, but it looks delicate, control of flexible, intelligent and so won users, many ball machine manufacturers also increase the intensity of research and development of high-speed ball, now manufacturers have made high speed dome basic control functions are relatively mature.

The function of diversity, networking and intelligence can be said that the current Quick ball the major trends in product development.

Speed dome as a monitoring system of the front-end device Imaging is clear, focused accuracy quickly is the key indicator, which in turn depends on the product selected a key components — integrated camera.

Integrated camera performance mainly in the image is clear, the focus is accurate, and zoom, color, and resolution.

Speed dome of horizontal and vertical directions of movement by two stepping motors, Center matrix to speed dome of movement commands are microprocessor-driven motor, motor or bad decision speed dome all motion parameters, like the preset point of high-speed scanning, large ratio of low-speed capture, cruise queue, figure scan, automatic tracking and enlarge accuracy can not be separated on motor processing and precise control.

At the minimum speed control when the image of jitter level to reflect the performance of high-speed ball in the mouth; preset point of accuracy depends on the degree of precision mechanical structure and stepping motor performance and control level, it can be said for motor control level can truly reflect the enterprise manufacturing speed dome level.

Quick ball camera function diversity refers to the product features will be strengthened, and can be applied to different environments, and more comprehensive, better compatibility.

Zoom and auto-tracking function is the latest high speed dome, two major technological breakthrough. Zoom is the monitoring process, the discovery monitor target, using the mouse to click the object, the high-speed ball the image transferred to the screen Center and click on the object's size smart zoom. Auto-tracking functionality is based on image processing techniques for extracting images in motion vector, speed dome under image moving object in the direction of movement.

Lightning protection technology has always been a subject of study of high speed ball, used only for the control signal to lightning protection, speed dome on video of lightning protection is also achieved a major breakthrough.

Network high speed dome will be the speed dome developed another direction, use now convenient network technology transfer video and control signals will greatly extend high-speed ball in monitoring industry applications, network capabilities as well as the products brought in some new applications, such as the current video monitoring is increasingly used in power and transport sectors, etc.

Intelligent speed dome in the main body and other equipment comprising intelligent recognition (face recognition and alarm, anomaly alarm, license plate recognition, etc.), automatic tracking (tracking moving objects), alarm linkage, automatic alarm and video, and other functions that the application of the "monitor" is more familiar, more intelligent and user-friendly.

Integrated high speed smart balls are equipped with large x optical zoom lens, the higher horizontal resolution, built-in high speed dome, you can quickly and accurately achieve positioning monitor; zoom features to more efficient surveillance camera focus objects images, suitable for monitoring public places and roads; in addition the General high speed intelligent ball with preset, pattern scan, automatic cruise, you can better achieve the city monitoring and many other special requirements.

Integrated high speed dome and PTZ cameras in General with more intensity than hidden, and thus very suitable for road traffic monitoring, in the present system of urban surveillance applications, integrated high speed smart ball has frequently to debut in a variety of applications.

Speed dome automatically tracking technology

Automatic tracking technology is based on intelligent recognition, image difference calculation, automatic identification of Visual range target movement direction, and automatically control the head on the goal of moving objects are tracked in the scope of the intelligent high speed dome camera to the left of this period, through the automatic configuration of high-definition zoom lens so that all actions are explicitly passed to the control center.

Once a zone when alarming, other related intelligence high speed dome will automatically rotate to alarm point began tracking, ensuring the monitoring image to record the movement of the target object.

In view of the above questions, the second generation of automatic tracking technology uses a lock tracking, that is, the operator specifies goals, intelligent speed dome will automatically track the trajectories of moving objects, for a specific person or object, you can lock tracking camera, even if other people or moving objects into the camera monitoring range, the camera will not be locked before with lost of target objects.

In a large square of the flow, as long as the manual lockout tracked target, it will not appear because of external reasons of tracking is not accurate.

At the same time, suddenly disappear for monitoring objectives of the special circumstances of a certain product set the disappearing after the associated object three options, the first was the place continued to keep track of disappearance; the second is that you can zoom in to the best tracking rate is continuously tracked targets mobile objects; the third is interrupted after automatic tracing, you can zoom in to the starting point of tracking rate.

Additionally, as the intelligence high speed dome gradually deepening of application, the user for movement and hardware selection is more extensive.

Some intelligence high speed dome is via built-in a paragraph integration movement to implement auto-tracking function, which makes the class high speed dome camera compatibility, if the use of other brands of movement would not be able to implement automated tracking capabilities. For compatibility, intelligent speed dome has a modular design, intelligent speed dome hardware can realize automatic tracking, this indoor IP high speed dome are compatible with more movement, use a wider range.

Speed dome products technology development status and trends

Network high speed dome

Network high speed dome is the development of high-speed ball features, is an important branch of traditional analog intelligence high speed dome camera with the perfect combination of Internet technology.

At the high-speed ball basis, the increase in image and sound encoding module and the network access module to make a basic network high speed dome camera, audio and video data and control data via the network the media reliable transmission.

How limited network bandwidth by more seamlessly transfer data is network speed dome in the development process need to be addressed first.

H.264 standard allows the moving image compression technology to a higher stage, now H.264 compression encoding already became the mainstream, in low-bandwidth, high-quality image transmission, image quality at the same conditions, the H.264 data compression ratio is MPEG-4 1.5 times.

In addition, dual stream concept of breakthrough network transmission and decoding resources bottlenecks.

Dual stream enables encoding, respectively, on the basis of separate storage network bandwidth to keep code stream size, allow us to make high-definition storage and low-bit-stream transmission becomes possible, currently affected by bandwidth bottleneck and market demand, dual stream technology will exist and continue to develop.

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