The CCTV Technology Handbook was funded under Interagency Agreement No. The SAVER Program is supported by a network of Technical Agents who such as digital equipment options, data storage, component miniaturization. Secure IP Network. A Cisco on surveillance to “digital” CCTV for surveillance. After the The Cisco® Security, Technology, and Systems (STS) department is. Editorial Reviews. Review. Praise for the 1st Edition: ' the book is well written and highly CCTV: Networking and Digital Technology 2nd Edition, site Edition. by.
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Cctv networking and digital technology pdf free. Race The World Game This ability has been removed from the game. Download Nand Flasher if you. In the last few years, different technologies have entered the CCTV industry such Network IP. Transmitted Signal. Analogue. Analogue. Digital. Compressed. CCTV, Second Edition: Networking and Digital Technology [Vlado Damjanovski] on ciagrampackdenpo.gq Cctv networking digital technology second edition pdf.
Other benefits of infrared cameras include: Detect intruders up metres away Good in low-light Thermal radiation passes through visual barriers Varifocal Cameras With the ability to zoom in and out without forfeiting its focus. This is to capture a good image of anyone who enters and exits to maintain high security and maximum safety.
These cameras are great for spotting misconduct and allows the user to zoom in for extra clarity, should the footage need to be used in court. But first, there are 3 factors to consider: 1.
The correct lense This will ensure that you receive a quality image. Choosing the right lens will allow your camera to focus and will bring enough light to the sensor on the camera, helping you to read registration plates and recognise faces etc. A zoom lense can provide customers with more information because optical zoom can adjust the light as it reaches the sensor, enabling flexibility and enhanced pictures.
The correct sensor There are two things to take note of when finding the right sensor: the type and size.
The correct output resolution The more pixels, the better the picture. How do I know what to use indoors and outdoors? This has made me even more committed to making this new edition even better and more informative. I certainly could not change the contents of the previous edition since the basics of CCTV are still the same, but I did fine tune certain sections, added some new illustrations, but most importantly I enhanced the contents with new chapters on Digital and Networking in CCTV.
I have tried to cover the theory and practice of all components and fundamentals of CCTV. This is a very wide area and involves various disciplines and technologies from electronics, telecommunications, optics, fiber optics, digital image processing, programming, and, as of the last few years, networking, IP communications, and digital image processing. So, my intention was to have a new book which still encompasses the basic concepts of CCTV but also includes, explains, and demystifies digital CCTV, video compressions, and networking.
Analog television is a complex technology, especially for people who have never had the opportunity to study it, but understanding digital is even harder without understanding analog CCTV. So, if you are not familiar with the analog CCTV, do not think even for a moment that you can bypass it and go straight to digital and networking. Everything makes so much more sense in the digital once you know the analog CCTV.
As with the previous edition I had to read and learn new things myself, and then I tried to put everything into the same style and perspective as the previous chapters. Understandably, I did not want to reinvent the wheel, but I made efforts to simplify and explain the most important aspects of these new technologies. I would not have felt comfortable writing about these new subjects if I did not have some practical experience though modest, at least so far , so that I tried to see it from a CCTV practical perspective.
Should you be interested in more in-depth knowledge of networking and digital there are numerous books I would recommend some are listed in the Bibliography section , but this book will give you a good summary and basics about the relevant CCTV aspects.
As with the previous edition, I have deliberately simplified explanations of concepts and principles, made many illustrations, tables, and graphs for better understanding, and tried to explain them in a X I I I. Still, a technical-minded approach is required. Keeping up to date with the latest technologies and products was made easier through my involvement as editor of the international magazine for Closed Circuit Television, CCTV focus You can find many new technological topics and most up-to-date articles on the magazine s web site.
The CCTV focus magazine was launched in , the same year the previous edition of this book was published, and it quickly became one of the most respected magazines in the CCTV industry. It has already been translated into Russian and most likely will be translated into Chinese and German as well.
You will find it the best extension of this book, for it is continuously updated with the latest topics, most of which are downloadable in Acrobat PDF format.
My intention was to have as much useful information on this web site as possible, and I am proud to say that the CCTV Labs web site is now one of the most frequently visited web sites in the world in the CCTV industry. Soon we will have it categorized and will include search tools for finding products and technologies. This book is intended for, and will be very helpful to, installers, salespeople, security managers, consultants, manufacturers, and everyone else interested in CCTV, providing they have some basic technical knowledge.
CCTV. Networking and Digital Technology Second Edition
The specially designed CCTV test chart printed on the back cover of the book will help you in videoquality testing, as explained in the last chapter of the book.
This will be very handy for evaluating cameras, monitors, and transmission, but also the playback quality of recording systems, regardless of the compression they use. The CCTV Labs test chart has been widely accepted, to the point that over manufacturers and businesses worldwide are now using it. It is a great tool to check the quality of your system and compare it with others. It offers solid reference signals for testing a variety of system parameters.
So much has changed in the five years since the last edition of this book was published by Butterworth- Heinemann now Elsevier that the question became not whether a new edition should be written but only when. Readers who themselves write technical articles would know that no matter how many times one goes through one s own text will still find things that could be corrected, or be said somehow differently, and unavoidably there will be some errors, although I did my best to elminate them.
So please, feel free to write to me if you find something needs to be changed or corrected for future editions. I am especially thankful to Nicolas Echave from Argentina, for his observations and suggestion in the section for calculating the light falling onto an imaging chip, as well as Bernard Cuzzillo from Berkeley, California, for his suggestions regarding correct light measurements using a photo camera.
I would also like to thank my colleague Les Simmonds for his assistance in providing me with some nice oscilloscope measurements and screen shots. I owe special thanks to Elsevier and its staff for making this book a reality, and in particular, I would like to thank Pam Chester, Jennifer Soucy, and Sarah Hajduk. This book has been made possible by Elsevier, as well as the CCTV manufacturers who have believed in me and co-sponsored this edition. These are: Thank you for downloading the book and I hope you enjoy reading it.
Vlado Damjanovski, B. Electronics Sydney, November s: Web Pages: All names and trademarks mentioned in this book are registered marks of their respective owners. Chapter 1, SI units of measurement, introduces the basics of the units of measurement which I thought are important to mention, even though they are not only a CCTV subject, but rather a technical issue.
Many products, terms, and concepts exist in the world of CCTV which sooner or later need to be referred to with a correct unit. SI units are suggested by the ISO the International Standardization Organization , and if we accept these units as universal it will make our understanding of the products and their specifications clearer and more accurate. I have also listed the common metric prefixes because I have found a lot of technicians do not know them. If you are an engineer or have a good technical background, you may not find this chapter of interest, so you can go directly to Chapter 2.
Chapter 2, Light and television, starts with a little bit of history so we can gain a wider perspective of the television revolution. Then we go to the very basics of human vision: It is necessary to explain the human eye and how it works because television relies greatly on the human eye s physiology.
It is interesting to compare the similarities between the eye s and the camera s operation. Apart from the discussion on how lenses work and what their most important features are, there is also a practical explanation of how and what to adjust ALC and Level on a lens, how to determine a focal length for a particular angle of view, and very important for CCTV, how back-focusing should be done.
Also, C and CS-mounts are discussed and explained, as well as various chip sizes. Chapter 4, General Characteristics of television systems, is very important, especially for readers without prior knowledge of how television works. I simply could not find sufficient literature to study it, although there are many similarities with PAL, at least in the number of lines and fields per second used.
General discussion on resolution is also included, and more importantly the difference between a broadcast signal and CCTV video signal. Near the end of the chapter I have also mentioned the most common instruments used in TV and what they measure. At the end, I have included tables that show the differences between various television system subgroups, as well as a listing of all the countries in the world with their adopted TV system.
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Chapter 5, CCTV cameras, is probably the most interesting chapter in the book. It discusses at length the concepts of CCD cameras, various designs, and camera specifications. Here, I have also included a discussion of measurement and calculation of light coming onto a camera, power supplies, and voltage drops.
I consider these very important practical issues which I have been asked about very often. Although they seem trivial, a lot of problems have been caused by improper camera setting or powering unregulated or overrated power supply, thin wires, high-voltage drop.
I found it suitable to discuss this issue in the camera section because power supplies form a part of the camera assembly. I have also included, at the end of this chapter, a very practical checklist which you or your installers can use in order to make the CCTV installation trouble free. You will find explanations on various important issues associated with monitors, like gamma, the impedance switch, and viewing conditions. At the end of this chapter, I have included a description of some major new developments in the display technology.
At the time of the release of the previous edition of this book, many of these technologies were only technical news, but today some of them have been or are being widely adopted. In Chapter 7, Video processing equipment, I have encompassed the good old sequential switchers and then the matrix switchers, as representatives of the analog processing range, and of course quads, multiplexers, video motion detectors, and frame stores as representatives of the early digital range.
Digital video storage, however, is becoming increasingly popular, and I found it important to say a few words about it in a new chapter.
Chapter 9, Digital video, is the main reason for this new book. From the time of the previous edition of this book when digital was only hinted, now there is almost no system installed without a digital video recorder or network in place. This heading discusses all the intricacies of digital, and why it is important to compress.
Also, it analyzes the various compressions and puts them in a logical order. Transmission media, Chapter 10, is one of the biggest owing to the large variety of transmission types used in CCTV. Clearly, the coaxial cable is the most common and widely accepted, so I have dedicated most of the space to the coaxial cable concept. So I have devoted some space on the actual termination techniques. In the rest of the chapter you will find explanations on the other media, like twisted pair, microwave, RF wireless, infrared, telephone lines, and, the most important for the near future at least in my opinion , fiber optics.
You will find quite a lot of space devoted to fiber optics, starting with the explanation of the concepts, light sources used in fiber, cables, and installation techniques. This technology is not as new as some may think; rather, it has become very affordable and easier to use and thus more common in larger CCTV systems.
Networking and IT technology. This goes hand in hand with the digital CCTV, but logically comes after the Transmission Media chapter as it does belong to the transmission section. The Networking in CCTV chapter does not intend to substitute the more in-depth literature you can find on networking and IT technology since there is plenty of it around but it gives the non-it reader some basic concepts and understanding of the increasingly more important Information Technology.
Chapter 12, Auxiliary equipment in CCTV, includes the good old discussion on pan and tilt heads, housings, lighting, infrared lights, ground loop correctors, lightning protection, video amplifiers, and distribution amplifiers.
This chapter is based purely on practical experience and on feedback from installers and users. You do not have to accept this as the only way to design a system, but I have certainly found it is very efficient and accurate.
In this chapter I have also included the actions taken after the system design is finished and installed. Preventative maintenance is often forgotten, but it is an important part of a complete CCTV system offer.
Even if preventative maintenance is done after the system is finished I think it is important for this to be listed here as part of the complete picture of CCTV. The last, Chapter 14, Video testing, advises readers on the usage of the CCTV Labs test chart, which I traditionally put at the back cover of the book in order to help you measure and test video. Many people found the CCTV Test Chart very useful, and, not surprisingly, it has become a de facto industry standard, so it might be interesting to know how to use it.
We regularly update and enhance the chart adding some more useful features.
installation of cctv systems Using IP Technology.pdf
Now you can use the test chart not only to determine camera resolution, but also to see if you can recognize a person at a certain distance. For the more dedicated CCTV technicians, the same test chart is also available on A3 format, foam framed, and printed on a nonreflective chemical proof paper with durable and stable colors.
Network integrity 7. Management of the network 8. WAN Links 9. Customer IT departments Maintenance Training Documentation and records Introduction The introduction of Internet Protocol IP based technology into the field of CCTV systems has created uncertainties which have inhibited the exploitation of the benefits available by adopting it. With the emergence of IP signalling technology, the benefits of remote CCTV monitoring are being realised as a cost effective and efficient alternative to conventional technology.
These guidelines have therefore been prepared to provide guidance on what a CCTV system will require from an IP perspective. Scope These guidelines are designed to provide installers with an overview of the common considerations of systems combining CCTV functions within IP networks. Terms, definitions and abbreviations 3. Usually expressed in bits per second bps i. Kilo K bps, Mega M bps.
Note: A LAN may include wireless connections. Page 3 3.
Networking and Digital Technology
This is the common term for recording devices used within IP-systems. Considerations 4.I would also like to thank my colleague Les Simmonds for his assistance in providing me with some nice oscilloscope measurements and screen shots. They can also be used for the monitoring. These guidelines have therefore been prepared to provide guidance on what a CCTV system will require from an IP perspective. Download "CCTV. As with the previous edition, I have deliberately simplified explanations of concepts and principles, made many illustrations, tables, and graphs for better understanding, and tried to explain them in a X I I I.
Start display at page:. Page 6 The creation of a copy of part, or of the whole, without. Considerations 5.
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