Setting ptz camera. The concept of a PTZ video camera. ptz camera control

12.04.2020

A PTZ camera is a surveillance camera with remote control for direction and zoom. The abbreviation PTZ stands for "Pan" - panorama, "Tilt" - tilt and "Zoom" - scaling. The PTZ camera owes its appearance to the film industry, where the first robotic video cameras were used. PTZ cameras are equipped with an electronic-mechanical drive that allows you to remotely control the tilt and turn of the camera by 360 degrees, and the built-in optical zoom provides adjustment of the focal length of the lens, due to which the zoom effect is achieved.

PTZ cameras are controlled using special software, the web-interface of the camera, input devices (joystick, mouse, keyboard) or directly. PTZ cameras have long proven themselves in the field of security - one such camera can replace several standard cameras. In the "rest" state, the camera shoots video in the usual mode (do not confuse the ability to adjust the camera position by 360 degrees, and the 360-degree viewing angle, typical for Fisheye cameras), and in the event of an alarm event, the operator points and zooms the camera in "anxious sector". PTZ cameras are successfully used in shops, supermarkets and other crowded places on large areas, as well as in rooms where the presence of a person is dangerous (nuclear, chemical industry).

Execution options:

In view of the design features, cameras of this type are most protected from environmental influences, and have high vandal resistance.

spherical;

Similar to hemispherical ones, they have lower indicators of protection from environmental factors, they can have more powerful IR illumination on board.

Cased;

Indoor PTZ camera

As a rule, internal execution, low protection index.

Characteristics of PTZ cameras:

The matrix is the main part of any surveillance camera, the quality of the resulting image primarily depends on the capabilities of the matrix;
Resolution - as a rule, the higher the better;
Coefficient of optical and digital zoom;
Processor capabilities - directly affect the display speed of frames per second;
Turning speed (maximum 400 degrees per second);
Autopatrolling - movement of the camera along a given or preset tracking route;
Auto-flip - triggered when the mechanical drive travel limiter is reached, the camera performs a “flip” into the free-wheeling zone and continues to move in the specified direction;
Other parameters specific to both PTZ cameras and other CCTV cameras.

Until recently, cameras with a fixed angle, field of view, and focal length. The disadvantage of this method is the need to use a large number surveillance cameras, the presence of dead zones and the impossibility of obtaining a clear picture of the intruder at various distances from the camera.

The solution to these problems was the development of devices that allow remote control key features CCTV Cameras.

The scope of PTZ cameras is rather narrow due to their high cost. Their most effective use is on objects of a large area with a complex configuration, which have several controlled zones. In this case, the use of one PTZ video camera can replace several conventional fixed ones and will be financially justified.

If video surveillance is integrated into the security system, such video cameras can be used to check the alarm and locate the intruder. Modern systems analytical control make it possible to use PTZ cameras to actively monitor the intruder - they lead the object in the area of responsibility.

MAIN TYPES OF ACTUATORS

PTZ - (Pan Tilt Zoom).

An electronic-mechanical device that performs the functions of tilt, rotation and zoom. On the this moment There are two types of PTZ devices:

A separate product to which a casing is attached to accommodate a case-based video surveillance camera.
The drive, as part of the mechanism integrated into the dome camera.

Varifocal zoom lenses.

Lenses with a movable lens system that move relative to each other in an interconnected manner so that when the distance to the object or the scale changes dynamically, the image is always in focus. External control can be carried out over a mechanized zoom. Remote change of the focal length will allow the duty officer to quickly bring the object closer to view individual details.

The most effective, but also expensive models are devices that have the ability to preset the position. The maximum effect of video cameras with such lenses is achieved in combination with rotary devices.

PTZ CAMERAS CONTROL

CONTROL OF VIDEO SURVEILLANCE CAMERAS VIA THE INTERNET

With the spread of digital IP-surveillance cameras that transmit information directly over local network Ethernet / WiFi without laying special communications, the issue of controlling video cameras through various external devices and the Internet has become relevant.

The transmission of video and control commands carried out over public cables and, moreover, over radio channels has insufficient security, despite the spread of various encryption algorithms. Therefore, such video surveillance systems are widely used in private homes and small companies. They are often integrated into security and alarm systems.

The simplest (free and shareware) programs offer a limited set of functions:

enable/disable recording;
viewing an image in On-Line mode or from an archive;
image search by several parameters;
PTZ module rotation control.

In most cases, a WEB-interface is used for management with varying degrees of automation for searching and configuring cameras on the Internet.

There are two sources software, which is used to remotely control surveillance cameras over the Internet.

The first is software supplied by video surveillance equipment manufacturers. As a rule, such software is only compatible with cameras. own production. The second source is business applications and their free versions, which offer a wide range of features, including analytics, and are compatible with most popular brands.

These programs include:

NetStation from Armo Systems;
CMS from VidStar;
Intelligence from iTV.

It is enough to install such software on your computer and the operator will have a rather impressive set of functions with the ability to automate many PTZ camera control processes:

patrolling;
target selection for tracking;
prioritization and detailing;
automatic selection and activation of the PTZ surveillance camera to guide the target through several areas of responsibility.

Many software modules for mobile devices have also been developed: smartphones, tablets, etc. Their functionality is aimed at viewing images and controlling PTZ cameras in real time. For example, the Line 7.0 program, which is available in various versions for the most popular operating systems: iOS, Android, Windows Phone and Windows Mobile.

CAMERAS CONTROL VIA CLOUD INTERFACE

VSaaS cloud video surveillance services are one of the most promising trends in video surveillance and remote camera control. Typically, cloud services only offer remote viewing without analytics and management features. But well-known camcorder manufacturers as they release new products include the functionality and the possibility of remote control.

Cloud services are offered by companies such as:

Axis and its cloud resource Axis AVHS;

DSSL - Trassir Cloud;

Domestic companies - Satellite Innovation;

Mobile operator - Megafon, etc.

Thus, remote control of various functions and PTZ actuators of video cameras can be realized different ways, both with the involvement of large funds and specialists, and independently with a minimum budget. One thing is certain, remote control will significantly increase the efficiency of the video surveillance system at the facility.

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I.V. Oleinik
DSSL CEO

This overview focuses on how to control SpeedDome integrated PTZ cameras.

The consumption of PTZ cameras has grown significantly in the market over the past 10 years. A significant reduction in the price of these devices is affecting, as well as an increase in their technical capabilities: speed, optical zoom, functionality. Now the normal rotation speed during the setting of the "preset" reaches (often exceeds) 400 degrees / s, the optical zoom has long stepped over 30x, and some cameras have even gained the ability to track objects in their field of view on their own. Modern prices for domes range from $500 to $600 for Chinese brands to several thousand euros for well-known Japanese, American or European brands. Unlike individual pan and tilt mechanisms, where control is carried out by its own pair for each degree of freedom (mainly 24 or 220 V alternating voltage), a telemetry receiver is integrated into the SpeedDome, which allows you to control the camera with just two wires (in the case of RS-485; some models require 4 wires for duplex control) or video cable. Well, SpeedDome IP video cameras do not require additional control wires at all, although they usually have the ability to work "the old fashioned way".

Controllers and keyboards

The easiest and "ancient" way to control a Speed Dome camera is with a keyboard, as well as a separate stand-alone device with its own power source. The minimum cost keyboard will control pan and zoom using only buttons and RS-485 protocol. Buttons are quite enough when you only need to set up cameras and then manage, for example, presets. But if the operator needs to constantly control the cameras, the remote control will greatly slow down his work. For such cases, a remote control with a joystick will be much more convenient - it allows you to control the camera in two coordinates at once, the focal length of the lens, as well as the rotation speed with one hand movement. The higher the cost of the keyboard, the more additional features(for example, control of video recorders, display of signals from video cameras and recorders on the built-in TFT monitor) it has. Working with DVRs is limited only by the fact that they must be released by the same company as the keyboard; there are no such problems with controlling video cameras - usually remotes support several protocols, which means that you can control cameras from different manufacturers. With the advent of IP-cameras, the question of remote controllers for them arose with an edge. Of course, almost all PTZ IP cameras have the ability to control via RS-485, but it makes no sense to drag additional wires when there is already a high-bandwidth digital network. The only drawback of an Ethernet network based on copper UTP, which is the basis for 99% of IP video systems, compared to an analog network is the short segment length from the device to the switch (about a hundred meters if you do not use optics).

PTZ camera features

Here we can talk about two things. First, some camcorders have built-in advanced controls. An appropriately configured video camera constantly monitors with a maximum viewing angle. When the built-in motion detector detects motion, the camera zooms in on the area and "leads" the moving object as far as possible. At the moment of such tracking, the camera "does not see" the environment and cannot switch to another object without returning to its original position with a minimum zoom. Of course, not all cameras even have a built-in motion detector, let alone automatic tracking.

The second applies only to IP cameras. It has already been said above that the Speed Dome IP camera can be controlled both using a conventional remote control and an IP remote control. However, IP PTZ cameras are, in a sense, self-sufficient devices and "have on board" a Web server. By logging in from any computer through a Web browser, you can get the image from the camera, configure its settings and control the pan and lens. It offers 2 methods - a simple one that imitates the buttons of the control panel and allows you to simultaneously control two coordinates, and an advanced one that differs for each manufacturer in details. Here you control the rotation and scaling with your computer mouse. By drawing a rectangle in any part of the camera window, you will force it to zoom in on this area or, by moving the cursor to the edge of the image, you will get an arrow hint; which you can move the camera in the desired direction (at the left edge - to the left, at the right - to the right, and so on).

Control by DVR non-PC

PTZ camera control has been an integral basic function of DVRs for a very long time. Only very cheap and very limited DVRs can afford not to have one. Cameras with non-PC DVRs are controlled in 99% of cases using the RS-485 interface. Some newer hybrid recorders that can work with both analog and IP cameras may support control over IP. According to the control method, all DVRs can be divided into 3 types: those that control using the keyboard of the DVR (from the front panel), control only the mouse (for recorders where there is no keyboard) and DVRs that support both options. The first option is acceptable only for those who very rarely use manual control of PTZ cameras (cameras are configured to bypass "presets" or "tours" in automatic mode). In most cases, using the front panel of a video recorder to control a PTZ camera is a pain in the ass, as there are only limited buttons to work with: no 3D joysticks. Mouse control can also vary greatly. The simple version is an imitation of the same limited set of buttons from the front panel, it is not much more convenient. Other NVRs may use roughly the same mechanism as described in the previous section, which is found mostly in IP cameras. Of course, you will have to configure everything using the same buttons or on-screen menu, but this is the only option for all DVRs. Total: the mouse is good, the keyboard is not very good. The good news is that there are more and more mouse-controlled registrars, but even the latter's internal software can vary greatly.

The control methods listed above have one common drawback. Any Speed Dome camera has 2 control speeds. The speed of control in manual mode usually does not exceed even half the speed of turning the camera at the time of using the presets. At the same time, it is obvious that the higher the speed of such manual control, the less accurate, the accuracy of positioning the camera on the area or object of interest. It can be noted here that the camera is not used to 100% of its capabilities, and the efficiency of its use could be higher. New computer interfaces and developments are called upon to cope with this task.

Software (PC-based DVR)

Computer DVRs always outperform non-PCs. Firstly, new technologies, especially resource-intensive and complex ones, are easier to develop and debug on computers, and secondly, competition with DVRs based on embedded processors forces the same developers to constantly add new features and capabilities, make their software more flexible and powerful. . What new software developers offer us for video recording and control of PTZ cameras? If we discard the variations associated with the interactivity of control directly on the image, or the imitation of a 2D joystick, then 3 categories of new products (interfaces) can be distinguished separately. The first is adding the ability to automatically control those cameras that do not have it initially, that is, controlling the camera using a motion detector in the software. Such detectors can be more powerful and advanced than those built into cameras. The second and third are connected with the use of at least one more video camera (review), the field of view of which coincides completely or partially with the rotary one at the minimum value of the focal length.

Manual control

In this mode, a combination of a survey and PTZ camera allows the operator to control the PTZ camera with one mouse click or, by selecting a rectangular area of the image from the survey camera, to get it optically enlarged using the PTZ camera. At the same time, 2 drawbacks of the interfaces described above disappear at once, control is performed at the maximum speed1 available for the video camera (usually declared as the positioning speed according to presets), and the operator does not lose sight of the protected area - he sees the whole situation as a whole and its details with maximum optical zoom, so it can move the camera from one position to another as quickly as it could with traditional interfaces.

The fact that the Speed Dome does not need to return to the viewing position in order to select new object, and this, as already noted, is the slowest part of positioning. When the camera is positioned without major zoom changes (almost not using the zoom), the speed increases significantly.

Automatic control

This implies the same bundle of overview and PTZ cameras. The motion detector analyzes the image from the overview camera and sends commands to the PTZ camera - now the control is fully automatic. Systems of this kind appeared many years ago, however, then they worked according to presets - each square of the overview camera image was assigned its own position, and as we remember, Speed Dome can have up to 256 presets. However, now developers use the capabilities of not only modern detectors, but also video cameras. The detectors are smart enough to transmit not just the coordinates of the object, but also the vector of its movement, since while the camera is turning towards the object, it may already have shifted. And the cameras have the ability not only to work according to presets, but also to execute direct commands to install at certain coordinates; they also have sufficient speed. It should only be noted that not all Speed Dome cameras, even from the average price range, will support these functions. You should not expect that the Chinese noname will be as fast and will have a fully implemented protocol, especially a borrowed one. If several objects appear in the field of view of the overview camera, the PTZ camera will switch between them, following each one for the set time. Today, some developers are supplying systems that allow simultaneous control of multiple Speed Dome cameras, and virtually unlimited combinations of panoramic and PTZ cameras, where you can have a live view of what is happening 360 ° around, while providing high resolution and detail of moving objects. It would seem that with the increase in resolution, when there are already digital video cameras of 5.8 Mpx and more, the need for such a solution is not so high. But the optical zoom is still difficult to replace, and a combination of panoramic and PTZ cameras using, for example, a 35x zoom gives the equivalent of a system resolution of more than 300 Mpx - to achieve the same result digital cameras can soon. Again, the use of megapixel panoramic and PTZ cameras will always push this barrier forward. Of course, this system also has disadvantages. First, as mentioned, not all PTZ cameras are compatible, and not all of them are fast enough to track objects moving at high angular velocity. Secondly, the system increases in price (however, the fee is worth it - like any increase in functionality that increases the security of the facility or your enterprise). Thirdly, the system requires calibration - setting the coordinates of the overview and PTZ cameras (although there are positive shifts here - for some cameras you need to set only 9 coordinate anchor points, and the rest will be calculated by the system itself).

It can be noted in which direction we should expect the development of manual and automatic control technology:

transition to megapixel panoramic and PTZ cameras and the desire for higher resolution;
construction panoramic images, made up of pictures obtained from a variety of survey cameras, which also contain images of rotary ones. Thus, a single interactive scene of an object or its section is created. However, it will be inferior without the ability to reproduce the archive in the same way (although this can be a serious load on the server);
improving the performance of motion detectors. New tracing technologies, scene and object recognition, improved tracing quality at night.

Of course, one should not rely entirely on the capabilities of the detectors. It is not worth saving on video cameras, hoping that the detector will cope with both noise and low-resolution images. General rule for any security system, the system will only be as bad as its smallest component. A cheap lens attached to an expensive camera, a cable with a low-quality connector, or any other component can wipe out all your costs.

Glossary

Speed Dome is a speed dome PTZ camera. High-speed in comparison with usual rotary mechanisms. Dome, since more than 90% of such cameras are designed as a cylinder with a domed optically transparent casing that protects the optics and mechanism from dust and moisture. Speed Dome cameras are also called integrated, meaning that all the necessary components are assembled in one body: the video camera itself, optics, a two-axis mechanism and a telemetry receiver.

Preset - the ability of the Speed Dome to be set to a pre-programmed position with the maximum available speed. Various modifications can store from 32 to 256 presets.

Tours (Tour, or Touring) - the ability of a PTZ video camera to execute a series of commands, such as a sequence of presets. The advanced option involves the camera remembering your actions and then cyclic execution. Protocol - a set of commands for controlling PTZ cameras using a telemetry receiver. Usually, large manufacturers use their own protocol, but they also necessarily integrate additional Pelco types, which have become the de facto standard due to the openness of the manufacturer's policy. Small manufacturers use only such open protocols and implement (depending on their laziness or camera capabilities) only a part of the commands. PTZ is an abbreviation for Pan, Tilt and Zoom, respectively horizontal and vertical rotation and lens control. A PTZ camera is a correspondingly integrated camera with a swivel mechanism and a zoom lens.

PTZ type cameras are a branch segment of compact video surveillance devices. The developers of this equipment raised security miniature cameras to new level thanks to their endowment with more effective systems automatic, and in some cases robotic intelligent control. Partially similar technologies were used in the first generations of video surveillance systems, but modern solutions differ markedly in a number of parameters, which is confirmed by the example of a PTZ camera. What does this mean in practice? First of all, these are wider possibilities for controlling camera settings, and in remote mode. In addition, the creators of PTZ models pay attention basic characteristics shooting, allowing you to get high quality images while maintaining a modest size of the camera itself.

General information about PTZ cameras

This is a non-standard camera, the main difference of which is the presence of a built-in electronic-mechanical drive. Moreover, the matrix itself, which ensures the fixation of the video stream, is quite consistent with the characteristics of traditional compact cameras for video surveillance. It is the drive with a robotic control principle that determines the features, which, by the way, can act as a separate part - a complete set. However, the latest models of this type also differ in their internal structure. Optical zoom, in particular, allows you to change the angle of view that the PTZ camera captures. What is it from the consumer's point of view? In essence, this means a variable with optical reduction and increase of the target object. Signals to control the drive mechanism and internal sensors can come from the remote control, or can be generated by controllers that interact with the computer. That is, through the software, the user can configure the fully automatic operation of the camera.

Key Features of the Camera

The number of pixels is the main indicator of the quality of work for all types of such cameras. The simplest versions are provided with 0.3 MP matrices, and high-tech ones with 5 MP modules. The number of recorded frames per second is usually in the range of 6-30 units. Of course, in assessing image quality, one cannot do without the resolution of the PTZ device - HD cameras, for example, confidently support the 1920x1080 format. At the same time, the outdated VGA matrix at 640x480 remains relevant. In security systems, the use of such modules is often justified. But if the above characteristics fully fit into the set of qualities of conventional surveillance cameras, then PTZ has noticeable advantages in the speed of rotation and increase in focus. So, optical zoom can be 36x, and digital 18x. As far as turning speed is concerned, modern models it reaches 400 °/s. Also, advanced modifications are equipped with 3D positioning technology.

Applications of PTZ equipment

Experts identify two areas in which the operational capabilities of such cameras are most advantageously revealed. These are security systems for security and video communication in conference rooms. In both cases, users appreciate the flexibility of the hardware in terms of control and the virtually unlimited possibilities for the physical installation of the hardware. It is also important to note the systems wireless connection, which are supported by a modern PTZ camera. What does this mean during operation? Wireless technology virtually eliminates the need for the user to run cables to the device. From the point of view of disguise, this is the best solution, since an attacker will have less chance of detecting signs. And vice versa, the operational work of the camera's rotary mechanics will allow you to track what is happening in the room with the most advantageous positioning.

Types of video camera designs

Manufacturers produce cameras of this type in several variations. The most widely used PTZ camera in the form of a hemisphere. This variety is called Speed Dome and is highly fault-tolerant. The design itself, thanks to its geometric shape, minimizes the risk of dust and moisture particles getting under the body.

Another option is a spherical design, which is similar in many ways to hemispherical cameras. Such models are usually supplied with powerful infrared illumination and anti-vandal protection. In general, PTZ dome cameras are designed in such a way that all mechanical components of the filling have a minimal chance of direct contact with environment. This advantage is especially evident in cases street models which deserve special attention.

Features of street models

Operation of video surveillance systems outdoors requires consideration of a number of additional factors. Among them are the nuances of providing communication between the camera and the control panel, the organization of the power supply system and the issues of protecting equipment from external influences. As for protection, the cases usually receive a thermal casing with dust and moisture protection insulation. Some models are additionally equipped with a heater and a ventilation system, which provide the possibility of a cold start at peak negative and positive temperatures. Power can be supplied directly or by batteries. By the way, the use of uninterruptible power supply sources justifies itself. Even a typical PTZ camera setup allows you to automate the process of switching to backup power in the event of an unstable network power supply. Communication, in turn, is also organized either directly via cable or wirelessly using a radio module.

Analog and digital models

In analog models, the resulting recording is automatically processed by a digital processor. Further, the material is sent to the electronic converter, in which the conversion takes place again, but in the reverse mode. The communication link of such equipment is provided by coaxial wires. The disadvantages of models of this type include low resolution, which does not allow you to count on a high-quality image when shooting at long distances. Digital PTZ cameras CCTV also includes pre-processing signal in the processor, after which the material can be transmitted over the TCP / IP protocol in the initially specified format. The main advantage of digital models is precisely the high-quality "picture", since in terms of communication and mechanical equipment, analog devices in some cases turn out to be a more reliable solution.

Camera control

In addition to setting the basic shooting parameters, PTZ cameras provide a lot of control options already in the process of direct use of the device. When installing the camera on site, the user can pre-program it to hundreds of preset positions. For each mode, a whole set of position parameters is assumed, including the angle value, zoom level, etc. Some models also allow you to assign individual scenarios for automatic scanning. For example, an outdoor PTZ camera is the most developed in this regard, since it has to cover large areas, including those with distant plans. The remote control, in turn, makes it possible to correct with an inclination. For this, a telemetry console is most often used.

PTZ Camera Manufacturers

High-tech segments are quickly filled with products from large manufacturers. In this case, the situation is somewhat different, since the most successful developments show less famous companies. The leading position is occupied by the Axis PTZ camera, modifications of which are focused on both specialized and universal video surveillance tasks. Also noteworthy are the proposals from Dahua, Geovision and complex solutions from Optimus. Of the major world famous brands PTZ technology was well mastered by Samsung engineers, although due to the high cost, this product is not so popular compared to analogues from the above manufacturers.

Conclusion

The interest of consumers themselves in video surveillance systems of this type is not so expressed. Despite the obvious technological breakthrough of individual solutions, these products still occupy a separate narrow niche. Understand this and manufacturers seeking to develop new options and functionality, which, in principle, a PTZ camera can have. What does this mean in the context of the overall development of the segment? At this stage, technologists rely on optimizing the communication interaction between the camera itself and the control complex. In practice, this will mean simplifying the means of organizing communication between individual components of video surveillance systems, and at the same time, tighter convergence of camera mechanics and software.

PTZ (pan - tilt - zoom) - translated means panning, tilting and zooming, that is, zooming.

Rotary IP PTZ video surveillance camera, with remote control functions of pan, tilt, zoom.

IP PTZ control panel, for controlling PTZ IP PTZ cameras

This function allows you to control the video camera remotely using a PTZ camera remote control, through a web browser, depending on the model of the device, directly through the menu of the playback DVR / NVR device or video server. Remote control, that is, control of a PTZ video camera, allows you to control by pointing at the required area of observation, then zooming in or zooming in on a particular area required for viewing. The area viewed by a PTZ video camera can reach up to 10 square kilometers, depending on which camera is used and with what resolution, how high it is installed on the object. For example, when using the HTV-IP-PTZ2P36 IP PTZ camera with 2 (Mpix) megapixel resolution and 36x zoom, it is quite possible to observe an object located at a distance of 2 kilometers.

In different cameras, depending on the technology used, PTZ commands are transmitted using different technologies. The main standard for controlling PTZ video cameras is the RS-485 interface / port with various control protocols, and almost all PTZ cameras have the ability to connect via this interface. The signal without command signal repeaters from PTZ consoles is delivered at a distance of up to 1200 meters. PTZ analog cameras and HD-SDI Ex-SDI PTZ cameras are controlled by RS-485 protocol only. In IP PTZ video cameras, signals are transmitted over an IP channel, through which information flows from the camera to the receiving device: NVR, IP server, IP camera control panel, WEB browser interface. In HD-TVI rotary PTZ video cameras, AHD PTZ video cameras, CVI PTZ video cameras, an additional UTC-control (Up The Coax) control interface is implemented, that is, control is carried out via a coaxial cable (other names for this protocol: Hikvision-C and Coaxitron). UTC control allows you to send commands to control PTZ cameras via a coaxial cable, through which the signal goes from the camera to the recorder, while the transmission distance of such signals is limited to 300 meters when using a cable no worse than RG-59.

In modern IP PTZ video cameras, infrared illumination is installed, which helps the camera work in the dark. Standard IR illumination reaches a range of 150 meters, but there is also a laser IR illumination that hits its beams at a distance of 400 meters. It is noteworthy that these rays are in the spectrum invisible to the human eye (850-940 nm), that is, they are not visible and harmless to the retina.

HTV has a full range of PTZ cameras of various designs: Dome PTZ, Mini Dome PTZ, Budget Bullet PTZ cameras and supports a line of all standards: HD-TVI PTZ, AHD PTZ, CVI PTZ, IP PTZ, HD-SDI PTZ cameras.