What is ptz. A quick guide for connecting a PTZ surveillance camera. How to control your own PTZ camera from TrueConf for Windows

In some areas modern life PTZ cameras have gained popularity. From the decoding of the abbreviation PTZ, we can conclude that such cameras provide the ability to control the moving mechanism (Pan / Tilt / Zoom - pan / tilt / zoom). Thus, you can control PTZ cameras remotely, manually adjust its position with the ability to rotate 360 °, being behind the monitor screen, and, if necessary, enlarge the image. This feature of this type of device allows replacing several static cameras with one PTZ. You can also program the device to automatically respond to changing events in the frame.

PTZ camera control

Opportunity PTZ control cameras is realized due to the presence of an electromechanical drive in the devices, which provides the ability to rotate and tilt the reversing camera. Also, these cameras are equipped with a built-in optical zoom, which allows you to remotely adjust the focal length of the lens. The mechanism is controlled remotely using digital cameras connected via a network protocol, or by means of a control panel for analog cameras.

There is nothing fancy in manual control of cameras - the operator sits at the computer screen and, using a joystick or keyboard, rotates the camera in the required direction.

Automation of modern PTZ cameras works on the principle of reaction to changes in pixels in a certain area of the frame. In other words, the device program, when movement occurs in the frame area, notices this, and when the object moves in space, it turns the camera after it, and stops the camera when the movement stops. After the moving object has left the field of view, the camera automatically returns to its original position. It is also possible to set up sensitive areas of the frame, in the event of movement in which the automatic will be triggered. It is possible to make insensitive those zones in which movement occurs constantly, and, in principle, is not a significant reason for the sensor to be triggered, for example, an enclosure with a dog.

Most PTZ cameras have an automatic patrol function, which allows the camera to automatically move along a given route. Depending on the model, you can set from 8 to 200 presets.

The auto-flip function provides automatic rotation of the camera unit 360 ° when the mechanical stop is reached, after which the camera continues to move along the specified route.

Other characteristics

The optical zoom of analog PTZ cameras can reach 36x, digital - 22x. The maximum digital zoom is 18x.

As well as fixed cameras, PTZ devices can be equipped with various event sensors with reaction to motion, noise, etc. The standard function of automatic switching to black-and-white shooting mode after dark (day / night function) is also implemented. Among other things, all dome and hemispherical devices are equipped with built-in IR illumination diodes for.

Execution options

PTZ cameras, like static ones, differ in their body design. In addition to the subdivision into outdoor and indoor, PTZ cameras are box, dome and hemispherical, but dome video capture devices are the most popular due to their reliability due to the location of the entire mechanism under the "dome". The vandal-proof housing of PTZ dome cameras reliably protects them from all kinds of mechanical influences and adverse operating conditions.

With the dome camera, you can adjust the field of view at right angles downward and pan 360 °. Due to the structural features of spherical dome cameras, they all have powerful IR illumination.

Hemispherical outdoor cameras, like dome ones, have high impact protection environment due to the location of all parts of the movable mechanism inside a sealed hemisphere.

The mechanism of box-type PTZ cameras closely borders on the environment, so their protection against atmospheric influences is very low. Because of this feature, the use of box-type PTZ cameras is limited to internal rooms in the absence of unfavorable conditions in the form of high humidity and dust.

Varieties of PTZ cameras

Like any other camera, PTZ has a clear distinction between analog and digital devices.

Today it is most expedient to use as analog PTZ cameras. The choice in favor of this type of device can be made based on the indicators of ease of connection, as well as high image resolution (HD, Full HD), comparable to IP video surveillance devices, which old analog cameras cannot boast. Easy to connect AHD cameras due to the ability to transmit video, audio, and control signals swivel mechanism one coaxial, when, as for simple analog devices, you would have to lay a separate cable for control.

PTZ IP cameras have high image resolution, and can also be directly connected to the Internet or integrated with cloud services for remote video surveillance and control of the driving mechanism of the camera from any gadget from anywhere in the world with Internet access. All signals are transmitted over one UTP cable () type 5e.

Dome PTZ IP WiFi Camera IVUE-IV8513PZ

As an example of an outdoor PTZ IP camera, let's take the IVUE IV8513PZ model, with a 1.3 MP matrix, and a maximum recording resolution of 720p (1280x720). The implementation of Wi-Fi technology provides the ability to wirelessly connect the camera to a router for setting up remote access via the Internet, accessing the device from a mobile phone or computer. It also implements WDR (wide dynamic range) technology, which allows video surveillance in difficult conditions with uneven lighting distribution. Viewing the video stream from the camera and controlling the rotary mechanism is performed through a CMS program or a browser interface. IVUE IV8513PZ has a built-in motion sensor, IR cut filter and IR illumination with a range of up to 10 meters. Operating temperature range from -30 to + 50 ° C. The cost of the device at the time of this writing is about 21 tr. By the way, the price range of almost all PTZ outdoor cameras is approximately equal to or starts from this figure, with the exception of some models.

Scope and application features

Thanks to the rotary mechanism, it is possible with one PTZ camera to provide control over the entire territory. To date given type Cameras are widely used in the security systems of shops, large shopping centers, banks, schools, in general, wherever a 360-degree view of the territory of an object is needed and the possibility of an instant increase in the focus of an alarming event.

Most often, to maximize the efficiency of a video surveillance system, PTZ cameras are used in conjunction with fixed video capture devices, when static cameras are constantly "vigil", and PTZ cameras are turned on in case of a need for a quick response to an extraordinary event to obtain decent image detail by optical zoom.

Based on the installation site, PTZ cameras can be used both indoors and outdoors. are equipped with a special sealed casing that protects the device from low and high temperatures, precipitation, moisture and dust. A heating system is built into the body of some outdoor cameras, which ensures uninterrupted operation of the device even in severe frosts. Therefore, when choosing cameras for operation in low temperatures, it is necessary to pay attention to the operating temperature range. This parameter for most types of outdoor PTZ cameras is in the range from -50 to + 60 ° C.

I.V. Oleinik
CEO of DSSL

This review is devoted to ways to control high-speed PTZ integrated cameras SpeedDome.

The consumption of high-speed PTZ cameras has grown dramatically in the market over the past 10 years. A significant decrease in the price of these devices, as well as an increase in their technical capabilities: speed, optical magnification, functionality, affects. Now the normal rotation speed during the installation of the "preset" reaches (often exceeds) 400 degrees / s, the optical magnification has long exceeded the 30-fold value, and some cameras even got the opportunity 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 rotary mechanisms, where control is carried out by its own pair for each degree of freedom (mainly with an alternating voltage of 24 or 220 V), a telemetry receiver is integrated into the SpeedDome, which allows you to control the camera using just two wires (in the case of RS-485; some models require 4 wires for full duplex control) or over a video cable. And the 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 simplest and most "ancient" way to control a Speed Dome-camera is using a keyboard, as well as a separate stand-alone device with own source nutrition. The lowest cost keyboard will control pan and zoom using buttons and RS-485 protocol only. Buttons are quite enough when you just need to configure cameras and then control, 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, focal length lens, as well as the speed of rotation with one movement of the hand. The higher the cost of the keyboard, the more additional features (for example, control of video recorders, displaying 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 produced 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 video cameras, the question of remote controllers for them arose. Of course, almost all PTZ IP cameras have the ability to control via RS-485, but dragging additional wires when there is already a digital network with high bandwidth is pointless. The only drawback of an Ethernet network based on copper UTP, which is the basis for 99% of IP video systems, compared to analog, is the short segment length from the device to the switch (about a hundred meters if you do not use optics).

PTZ camera capabilities

Two things can be said here. First, some camcorders have built-in advanced controls. A properly configured video camera constantly monitors with a maximum viewing angle. When the built-in detector detects movement, the camera zooms in on the area and "guides" the moving object as far as possible. At the moment of such tracking, the camera "does not see" the surrounding 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, not to mention automatic tracking.

The second concerns only IP video cameras. It has already been said above that the Speed Dome IP camera can be controlled using either a regular remote control or an IP remote control. However, IP PTZ cameras are in a sense self-contained devices and have a Web server on board. Logging in from any computer through a web browser, you can get an image from the camera, configure its parameters and control the rotary mechanism and lens. It offers 2 methods - a simple one that imitates the buttons on the control panel and allows you to simultaneously control two coordinates, and an advanced one that differs from each manufacturer in detail. Here you control rotation and zoom using 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 a hint-arrow; 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).

DVR control non-PC

PTZ camera control has long been an integral basic function of DVRs. Only very cheap and very limited functional DVRs can afford it. Cameras with non-PC DVRs are controlled in 99% of cases using the RS-485 interface. Some newer Hybrid DVRs, which can work with both analog and IP cameras, can support IP control. According to the control method, all DVRs can be divided into 3 types: controllers using the DVR's keyboard (from the front panel), controlling only the mouse (for DVRs 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 real torment, since you only have to work with buttons in a limited number: no 3D joysticks. Mouse control can also vary greatly. A simple option is an imitation of the same limited set of buttons from the front panel, it is not much more convenient. Other DVRs can use approximately the same mechanism as described in the previous section and is presented mainly for IP video cameras. Of course, you will have to configure everything using the same buttons or the on-screen menu, but this is the only option for all recorders. Total: the mouse is good, the keyboard is not very good. The good news is that there are more and more mouse-controlled recorders, but 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 control speed in manual mode usually does not exceed even half the speed of camera rotation at the time of using the presets. Moreover, it is obvious that the higher the speed of such manual control, the less the accuracy, accuracy of positioning the camera on the area of interest or object. It can be noted here that the camera is not used to all 100% of the possibilities it has, 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)

DVRs always outperform non-PCs in terms of capabilities. 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 functions and capabilities, make their software more flexible and powerful. ... What new do the developers of programs for video registration and control of PTZ cameras offer us? If we discard the variations associated with the interactivity of controls directly on the image, or the imitation of a 2D joystick, then we can separately distinguish 3 categories of new products (interfaces). The first is adding a feature automatic control those cameras that do not have it initially, that is, camera control using a motion detector in software... Such detectors can be more powerful and advanced than those built into cameras. The second and third are associated with the use of at least one more video camera (overview), the field of view of which fully or partially coincides with the rotary camera when minimum value focal length.

Manual control

In this mode, the combination of the overview and PTZ cameras allows the operator to control the PTZ camera with one click of the mouse or, by highlighting a rectangular section of the image with the overview one, to get it optically enlarged using the PTZ camera. At the same time, 2 shortcomings of the interfaces described above disappear at once, control is carried out at a speed1, the maximum available for a video camera (usually declared as the speed of positioning by 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 point the camera from one position to another as quickly as it could not with traditional interfaces.

The fact that the Speed Dome camera does not need to return to the survey position in order to select a new object also plays a role in the control speed, and this, as already noted, is the slowest part of positioning. When the camera is positioned without much zooming (almost without using the zoom), the speed increases significantly.

Automatic control

Here we mean the same combination of overview and PTZ cameras. The motion detector analyzes the image from the overview camera and issues commands for 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, the Speed Dome can have up to 256 presets. However, now developers are using 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 be displaced. And cameras have the ability not only to work with presets, but also to execute direct commands for setting along certain coordinates; they are also fast enough. You just need to note that not all Speed Dome Cameras even from the middle price range will support these functions. Do 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 will switch between them, following each one for a set time. Today, some developers supply systems where simultaneous control of several Speed Dome cameras is possible, and almost unlimited combinations of panoramic and PTZ cameras, when you can have a vivid 360 ° view of what is happening around, while providing high resolution and detail of moving objects. It would seem that with an increase in resolution, when there are already digital video cameras with 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, 35x magnification gives the equivalent of a system resolution of more than 300 Mpx - digital cameras will not be able to achieve the same result soon. Again, the use of megapixel overview 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 cost is worth it - as well as any increase in functionality that increases the safety of the facility or your enterprise). Thirdly, the system requires calibration - setting the correspondence between the coordinates of the overview and PTZ cameras (although there are positive shifts here - for some cameras it is required to set only 9 anchor points, and the rest will be calculated by the system itself).

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

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

Of course, you shouldn't rely entirely on the capabilities of the detectors. Do not skimp on video cameras, expecting that the detector will cope with both noise and low-resolution images. The general rule of thumb for any security system is that a system will be as bad as its smallest component. A cheap lens attached to an expensive camera, a cable with a poor quality connector, or any other component can take all your costs away.

Glossary

Speed Dome is a high-speed PTZ dome camera. Fast compared to conventional slewing gears. Dome, since more than 90% of such cameras are designed in the form of a cylinder with a domed optically transparent casing that protects the optics and the mechanism from dust and moisture. Speed Dome cameras are also called integrated cameras, meaning that all the necessary components are assembled in one body: the video camera itself, optics, a two-coordinate mechanism and a telemetry receiver.

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

Tours (Touring) - The ability of a PTZ video camera to execute a series of commands, such as a sequence of presets. The extended version assumes that the camera memorizes your actions with subsequent cyclic execution. Protocol is a set of commands for controlling PTZ cameras using a telemetry receiver. Usually large manufacturers use their proprietary protocol, however, they must also integrate additional types of Pelco, which has 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, the rotation of the horizontal, vertical and lens control. PTZ camera is an integrated camera with a rotary mechanism and a zoom lens, respectively.

The Line video surveillance system controls PTZ cameras using an RS-485 interface converter. IP PTZ cameras are controlled by the system via Ethernet interface. Combined use of PTZ and overview cameras is possible, which allows you to automate the transition of a PTZ camera to the zone of motion detected. This function of the program is useful for protected objects with a large territory.
You can restrict access to PTZ control to any user. Just uncheck the box in its settings.

Support for basic control protocols (PTZ):

Pelco D / Pelco P;
Lilin v. 1 / Lilin v. 2;
Samsung SCC-C;
Panasonic;

Panasonic New;
TOA;
ZC-NAF27.

Standard

By launching the widget, you can fine-tune the position of the camera and go to the preset. All possible presets have a preview mode.

Visualization of memorized PTZ camera presets has been implemented, allowing you to see the location of the camera before starting to navigate to the selected preset. When saving a preset, the program automatically remembers a snapshot of the camera screen, which allows the user to visually determine the desired transition.

Advanced

When you hover the cursor over the center of the picture, a joystick appears. By holding down the mouse button, you can turn the camera in the direction of the joystick movement. The further the joystick is from the center, the faster the camera turns.

Click on the image to view

Control methods

PTZ cameras can be controlled using a mouse, joystick or USB remote control. There are also keyboard shortcuts.

PTZ cameras are cameras equipped with an electric motor and a rotary mechanism, operating in ip and analog video surveillance systems.

A distinctive feature of the popular PTZ camera is the ability to control this mechanism. This is indicated by the abbreviation PTZ, which can be interpreted as panorama - tilt - zoom. Such a camera is controlled remotely. The operator, sitting in front of the monitor, has the ability to rotate the camera through an angle of up to 360 degrees, change its tilt, and also make an approximation due to the variofacal lens. This wide manipulation of the camera allows it to replace several cameras that have a static position and transmit an image from only one visible view.

How a PTZ camera is controlled

The actions aimed at controlling the PTZ camera are provided by the built-in electromechanical actuator. With its help, the camera is able to make turns and change the angle of inclination. The camera has a built-in optical zoom that allows you to remotely control the focal length of the lens. The very manipulation of the mechanism can be carried out through specialized programs or through the interface of the DVR. It is also possible to control the camera using a special PTZ remote control. The latter, by the way, is the most convenient solution, but it requires additional costs.

It is very easy to manipulate the PTZ camera manually. In this case, the operator, sitting at the computer, makes turns and inclinations using the keyboard buttons or a joystick.

The principle of automatic maneuvering of the camera is its response to changes in pixels in the area of the camera. That is, through the installed program, the camera reacts to movement in the tracking focus. If the fixed object moves, then it turns and tracks its movement. If the object stops moving, then the camera also stops. The camera stops and returns to its original position when the fixed object leaves its working area. The program can be configured in such a way that the camera will not react to areas where regular, non-hazardous movement is recorded. An example of this constant movement is the dog enclosure.

Another indisputable advantage of many PTZ cameras is the ability to program them to automatically patrol a given area. In this case, the camera automatically tracks the perimeter, moving along the programmed trajectory. Various modifications of cameras will allow programming from 8 to 200 presets.

The available "auto flip" function allows the camera to automatically rotate 360 degrees before it reaches the mechanical stop. Then the mechanism continues its "tour" around the programmed perimeter.

On the video: How the ptz camera patrol mode is configured.

Additional Features of PTZ Camera

For analog PTZ cameras, the optical zoom of the lens can be up to 36x, in digital cameras- 22x. The digital zoom reaches a maximum of 18x.

Similar to fixed video tracking mechanisms, PTZ cameras can have sensors that respond to motion, noise effects, etc. PTZ cameras have a day / night function at their disposal, which allows automatic switching to black and white images in the evening and at night. In addition, dome or spherical cameras are equipped with built-in IR diodes. This makes it possible to illuminate when shooting in night mode.

PTZ camera modifications

Both static and PTZ cameras intended for video tracking may differ from each other in their housing. They are also used for indoor or outdoor surveillance. PTZ cameras are available in box, dome and hemispherical versions. Dome cameras are most popular with customers as they are the most reliable. Safety is ensured by the closed location of the camera under the dome. The working mechanism is protected by a dome device and protects it from mechanical damage and various negative natural manifestations during its direct operation.

Dome cameras make it possible to adjust its viewing area downward at a right angle and program it to rotate 360 degrees. All cameras of this kind are equipped with good IR illumination, which can be installed by the structural features of such models.

In the photo: Dome PTZ camera for mounting on a socket

Hemispherical and domed rotary cameras designed for external observation are reliably protected from all adverse climatic manifestations, since the entire working mechanism is enclosed inside a hermetic sphere.

As for the case chambers, their mechanism is in direct contact with aggressive environmental influences, and the case does not protect their mechanism from the adverse effects of precipitation and other natural manifestations. Therefore, box-type PTZ cameras are mainly used for indoor tracking and in those rooms where there is no dust or excessive humidity.

Types of PTZ cameras

PTZ cameras, like all similar devices, are divided into 2 types: analog and digital.

Among analog PTZ cameras, cameras deserve more attention. These modern devices have a simple connection, high resolution picture (HD, Full HD), which is compatible with an IP video tracking device, which is not observed with analog mechanisms of the old model. Modern analog AHD camera easy to connect, which consists in the transmission of video and audio signals, as well as in the manipulation of the camera, which is carried out over a single coaxial cable. For similar old cameras, to control them, you need to run an additional cable.

IP PTZ cameras have high resolution, and they can also be connected to the Internet or to a cloud server for remote monitoring. It also makes it possible to control the camera from anywhere on the map using any gadget with the Internet. All types of signal are transmitted by one UTP 5e cable.

An example of a PTZ IP camera for outdoor surveillance is the Hikvision DS-2DE7174-A model, with a 1.3 MP matrix and a maximum resolution of 1280x720. Wi-Fi allows you to provide a wireless connection between the camera and a router and through the Internet you can control the device through any gadget or computer. The WDR (Wide Range) function provides high quality video tracking in unusual low visibility conditions. Information reading and device control is carried out by or. This camera is equipped with a motion sensor, IR cut filter and illumination with a range of up to 10m. The working temperature scale for the camera is located in the range from -30 to +50 degrees.

On video: Work Ptz cameras Hikvision DS-2DE7174-A

Scope of PTZ PTZ Camera

The rotating mechanism of the PTZ camera is able to provide control of the entire territorial area. This camera is used in cases where you need a general overview around the area and for a few seconds to enlarge the frame with the scene of the incident. Such objects are shops, banks, schools and other public facilities.

The greatest effect is achieved by joint operation of static and PTZ cameras. Static cameras are monitored on an ongoing basis. In case of an unforeseen situation, a PTZ camera is connected. It gives an all-round view of the emergency site and allows you to bring the object as close as possible to determine a non-standard situation. An excellent solution to this problem is the Trassir Activedom + software module.

PTZ cameras can be used both for indoor and outdoor video tracking. Outdoor cameras are placed in a special casing that protects them from precipitation and aggressive environmental influences, as well as from temperature extremes. Some outdoor chambers are equipped with a heating system, which allows them to operate reliably even at very low temperatures. When choosing cameras, you should take into account the possible range of negative temperatures and choose the appropriate models. Basically, for PTZ cameras, the working temperature zone is in the aisles from -50 to +60 degrees.

Video: Collaboration of a high-speed camera in conjunction with static, general overview.

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

PTZ IP PTZ security camera, with functions remote control pan, tilt, zoom.

IP PTZ control panel for controlling PTZ PTZ cameras

This function makes it possible to control the video camera remotely using the PTZ camera control panel, through a web browser, depending on the device model, 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 to the desired area of observation, then zooming in or out of one or another area required for viewing. The area viewed by a PTZ 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 an IP PTZ camera HTV-IP-PTZ2P36 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 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 repeaters of command signals from PTZ-consoles is delivered at a distance of up to 1200 meters. PTZ analog cameras and HD-SDI Ex-SDI PTZ cameras are only controlled via RS-485 protocol. In IP PTZ 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. HD-TVI PTZ cameras, AHD PTZ cameras, CVI PTZ cameras have an additional control interface UTC-control (Up The Coax), that is, control is carried out via a coaxial cable (other names for this protocol: Hikvision-C and Coaxitron). UTC control allows you to transmit commands to control PTZ cameras over a coaxial cable through which the signal from the camera to the recorder goes, 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 cameras, infrared illumination is installed, which helps the camera work at night. Standard IR illumination reaches a range of 150 meters, but there is also a laser IR illumination, which beams with its beams up to 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.