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For efficient control, the first step is to establish a “hardware handshake” between the camera and the keyboard console via an Ethernet cable (for IP/NDI models) or an RS232/RS485 serial line “. In this step, the communication protocol (such as VISCA, Pelco-D or ONVIF) and baud rate (serial port is usually 9600 bps) must match exactly on both ends of the device.

In the security systems industry, when we talk about “best pan and tilt heads,” we are referring to heavy-duty motorized positioning equipment that can survive in harsh outdoor environments and provide precise control over long distances.

Pan Tilt Calibration is essentially an electromechanical initialization process in which a PTZ camera or a heavy-duty gimbal needs to synchronize the actual position of the physical motor with its internal software coordinate system. This operation is actually forcing the equipment to “re-homing”-that is, driving the stepper motor or servo system to find the physical reference point (we usually call it “zero position”).

In the context of industrial monitoring systems, the difference between Pan (horizontal rotation) and Tilt (vertical pitch) is essentially a difference in the mechanical movement capabilities of the positioning unit. Simply put, Pan is a horizontal rotation around a vertical axis (professionally called azimuth), which usually allows the camera to scan 360 degrees left and right to cover a wide range of boundaries. Tilt is a vertical movement (pitch angle) around the horizontal axis, allowing the camera to adjust the angle up and down (usually up to 90 to -90) to track air targets or ground threats.

In the field of professional industrial monitoring, when we talk about “Pan Tilt”, we are talking about the kind of reinforced electromechanical system, which is often called “locator” or “head” in engineering “. It has two core actions: Pan (horizontal azimuth, usually 0 to 360 degrees) and Tilt (vertical pitch angle, usually -90 to 90 degrees). The industrial Pan-Tilt Unit (PTU) is more like a strong universal base. Its existence value is to mount those heavy equipment-whether it is a telephoto laser lens, a thermal imager or a radar antenna. The core competitiveness of this thing lies in its absolute positioning accuracy and the dynamic coverage capability it can provide in key places such as borders and ports.

Pan-Tilt is simply a mechanical system that allows a camera or device to move horizontally and vertically. Its core value lies in “motion”-through left and right scanning and up and down pitching, covering a much wider area than a fixed lens, or tracking a moving target in real time.

How far a PTZ camera can see depends entirely on its Optical Zoom power and what level of detail you need. For most home and small business applications, a standard 4x optical zoom PTZ camera is usually enough to allow you to clearly recognize a face or license plate from a distance of 50 feet (about 15 meters).

In the pan tilt positioner market, there are many different options, so how do you choose a suitable model? It is suggested to consider from five aspects: rotation speed, rotation angle, working voltage, load capacity, control , and environmental features.

Radar systems have evolved significantly in how they are composed, the signals they use, the information they can capture, and how this information can be used in different applications. Radar is widely used in military and civilian fields, including: Surveillance (threat identification, motion detection or proximity fuze) Detection and tracking (target identification and tracking or maritime rescue) Navigation (avoiding car collisions or air traffic control) High-resolution imaging (terrain mapping or landing guidance) Weather tracking (storm warnings or wind profiles)

As an important auxiliary tool in photography, the main functions of a tripod can be summarized as follows: 1. Stabilize the camera to prevent shaking 2. ‌Precise composition and shooting control‌ 3. Expanded special shooting scenes 4.Other accessibility features

Based on our experience, combined with the classification standards of industry leaders such as Hikvision, Dahua, Uniview, and Axis, the following is summarized:

From the statistics of the top 50 listed companies in the field of physical security in 2023, it can be seen that this year's top 50 companies in the world show a positive trend. The top 10 companies - Hikvision, Dahua Technology, ASSA ABLOY, Motorola Solutions, Axis, Allegion, Tiandi Weiye, Hanwha, TKH (Intelligent Vision System) and AIPHONE all achieved year-on-year revenue growth in 2023, ranging from single digits to low double digits.

The total sales volume of global surveillance cameras in 2024 is expected to be between 150 million and 200 million units, of which smart cameras will dominate, and traditional wired products will still have a certain scale. The specific data needs to be disclosed in a more comprehensive industry report.

The pan tilt positioner/pan tilt head is a supporting device for installing and fixing the camera. It can ensure that the camera can move in four directions, up, down, left and right, to obtain a wider viewing angle. The function and function of the monitoring PTZ is to support adjusting the camera focus, depth of field, and aperture to obtain better image collection effects at any time.

How to choose a pan tilt unit/pan tilt positioner ? When many people choose a pan tilt unit/pan tilt positioner, they will look at the pan tilt unit/pan tilt positioner brand. Brand is one aspect, but...

What is the function of each wire in the 8-core wire of the network cable in video surveillance systemWhen many friends connect the network cable, they usually don't know the eight copper wires in...

The Internet is a symbolic product of the information age. Since the end of the 20th century, the Internet has really entered thousands of households. As the degree of automation and intelligence beco...

A slip ring is an electrical component responsible for connecting and transmitting energy and signals to a rotating body. According to the transmission medium, slip rings are divided into electric sli...

The slip ring is a ring connected to the center conductor, and a ring connected to the outer layer of the cable as a shielding ring. Coaxial shielded slip rings are usually used to transmit signals ab...

In 2022, most of the top 50 global security companies have achieved significant growth. However, this year is coming to an end, and the security industry is facing many new problems. These "uncer...

The North American security market saw some growth as the post-pandemic economic recovery prompted businesses and project work to return to normal. At the same time, supply chain shortages and uncerta...

Network cable, as a part of the design and construction of integrated wiring, is the basic medium of most information transmission systems. Its importance is self-evident. This paper will analyze the ...

Ⅰ. Centralized power supplyCentralized power supply means that the source devices are centrally installed in the power room and battery room, and the electric energy is uniformly transformed and dist...

Ⅰ. Video signal interfaceIntroduction to the types of surveillance video cables:According to the material, there are SYV and SYWV. The physical material structure of the insulating layer is different...

Photons and electronsThe basic premise of electronic imaging is that light energy is converted into electricity in a way that preserves visual information, allowing us to reconstruct the optical prope...

Whether you are looking for a color night vision security camera or an infrared outdoor security camera, a complete, well-designed system depends on choosing the best and most suitable night vision se...

1. What is network HD video surveillance?The network video system usually refers to the IP monitoring system used for specific applications in the field of security monitoring and remote monitoring, w...

As the video surveillance system is recognized by everyone, more and more people protect themselves and their property by installing video surveillance cameras. But sometimes people will find that the...

Step 1: Take out the bracket and prepare the tools and parts: plugs, screws, screwdrivers, small hammers, electric drills and other important tools; check the size and model of the plugs and self-tapp...

Wireless surveillance cameras are loved by most people because of their wiring-free. In particular, it is widely used in small household monitoring systems. The selection of the installation point of ...

COVID-19 can be spread through droplets formed by coughing and breathing, so epidemic monitoring and prevention in public areas has become an important part of containing the epidemic. During the Spri...

Every year, I look forward to the development trend of the security industry in that year. I recently reviewed the outlook articles I wrote and found that although the trends were predicted correctly,...

Ⅰ. Definition of face recognitionFace recognition technology began in the early 1970s and is a typical application in computer vision (CV). Computer vision belongs to deep learning (DL).At the same t...

We often see that the parameters of the camera say that it supports 120dB wide dynamic, where 120dB is actually a ratio, which means that the ratio of the illuminance between the brightest part and th...

Infrared camera night vision fogging is a very common problem, but the industry has not been able to solve this problem well. For example, the EZVIZ cloud brand owned by the industry leader Haikang ha...

Focal lengthThe distance from the principal point on the rear of the lens to the optical axis of the imaging plane is the focal length. The smaller the value, the wider the shooting range (wider angle...

There are too many classification standards for security cameras. If the standards are too trivial and the classification is too fine, many cameras will appear in different classifications at the same...

We need to know H.264 before talking about H.265. H.264 is one of the video codec technology standards named after the H.26x series by ITU-T. There are two international organizations that develop vid...

Based on the existing content of the security knowledge network, we organize the content in combination with some common foreign video surveillance terms to help industry professionals quickly underst...

Recently, many readers who have just entered the industry have reported that they want to have the latest video surveillance terminology documents. Therefore, based on the existing content of the secu...

Ⅰ. Bandwidth and storage computingBandwidth and storage are very important in video surveillance projects. The following points should be considered when designing bandwidth usage and storage size:1....

What is the difference between substream and mainstream? Why is the monitoring always stuck? How to calculate the monitoring hard drive capacity quickly? In this article, we will look at relevant cont...

The direction against the wind is better for flying.Preface: There are four parts that need to be considered for the monitoring project, which are the front-end system, the transmission system, the st...

91. What impact does the power supply have on the server-side monitoring system?A: Unstable power supply (too high, too low) will damage the computer.B: Too much power ripple system will cause video i...

81. What are the classifications of cameras?A: By color: color camera and black and white cameraB: According to the system: PAL system and NTST system82. What is the imaging principle of the camera?Th...

61. How to choose a power cord in the centralized power supply?The power cord is required to use an outdoor waterproof cord of 1.5 square meters or more.62. Why choose a centralized power supply in th...

41. What are the main functions of the mainframe of the monitor in the server-side of the surveillance system?A: Data audio communication with the visual-audio controller.B: Data audio communication w...

21. What are the ways of installing and using the infrared lamp?A: Usually, it should be installed beneath the camera.B: The power supply is AC130V-AC260V22. How shall we classify the multimeter?A: Di...

1. Why is the stabilized voltage supply used in the power supply system?To prevent monitor and control unit from damages caused by the over-high or over-low voltage fluctuation of power supply.2. Does...

Ⅰ. I frameI frame is also called intra picture. I frame is usually the first frame of each GOP that is a video compression technology used by MPEG. After moderate compression, it can be used as a ref...

1. Detector based on the principle of resistance micro-radiation measurementThe thermistor is affected by infrared radiation and will change its temperature, which in turn changes the resistance value...

This year's global security top 50 list is finally released. Although the security industry has been affected by the epidemic in the past 1-2 years, the global ranking does not seem to be affected. Except for the emergence of a new challenger, Motorola Solutions, the position of leading companies remains solid.

Because of COVID-19, all parts of the world are in panic and disorder. In daily production and life, the testing standard for people's physical health is 37.3℃. As a result, various infrared temp...

From the official websites of Haikang and Dahua, there are currently no 5G surveillance cameras, but there are some 5G NVRs, DVRs, and car DVRs. This confirms our previous conclusion: At present, 5G i...

The effect of IP cameras is affected by many factors. The use of cameras in the market is already very extensive, but IP cameras have become one of the most popular cameras. So what is it affected by?...

Ultra-low-light cameras are hot spot products in the surveillance industry that have been launched in recent years with the development of semiconductor technology. It has been widely used in the fiel...

Users' misunderstandings of night vision cameras can easily affect the purchase and the later using experience of the camera. This article sorts out the common misunderstandings in the industry at...

In the security system, image generates mainly from CCD cameras. CCD is the abbreviation of charge coupled device, which can change light into electric charge, store the charge and transfer it. Also, ...

The working principle of infrared thermal imaging and an introduction to infrared detectors.The corona virus can spread through droplets formed by coughing and breathing. Therefore, epidemic monitorin...

The constantly evolving software-defined network market provides new development opportunities for the global network surveillance market.MarketsandMarkets, the world's second-largest market resea...

According to a CCTV financial report, chip prices have risen continuously in recent years, and chips have changed from being unavailable to unaffordable. The latest research report of Goldman Sachs po...

The effect of network cameras is affected by many factors. The use of cameras in the market is already very extensive, and network cameras have become one of the most popular cameras. So what is it af...

Security monitoring system is an emerging profession that has been paid more and more attention by people. As far as the current development is concerned, the application is more and more popular, and...

Ⅰ. Selection of video monitoring cables 1. Video cable: When the distance between the camera and the monitoring host is less than or equal to 200 meters, usually about 100 meters, you can use SYV-75-...

1. Explanation of preset position functionWhen the user operates the terminal's monitoring pan/tilt to monitor the target through the control device, the operator can set the current monitoring ta...

Thedome camera is a representative of the development of modern TV surveillance. It integrates a color integrated camera, a pan/tilt, and a decoder, a protective cover and other functions, easy to ins...

1. Classification of security camera bracket(1) According to the material, it can be divided into metal security camera bracket, plastic security camera bracket, etc.;(2) According to the type of use,...

1. Introduction of PTZ video cameraA PTZ video camera is a camera with PTZ(Pan/Tilt/Zoom). It is equipped with a device for carrying the camera to rotate in both horizontal and vertical directions. Mo...

In the coming December 2020, a few COVID-19 vaccines will be ready to get approved, security industry and expertise are thinking what security measures we are using in the current situation are about to remain in the future.

In 2020, the Covid-19 epidemic has changed people's lifestyles, but also changed the development and future of many industries.During the epidemic, sales of thermal imaging cameras that can measur...

On November 13, a&s magazine announced the 2020 "Global Security Top 50" list. This ranking conducts research and analysis on influential companies around the world and ranks their secur...