Archive for July, 2007
Posted on July 26, 2007 by Admin
How to install Dynamic ip software to your cctv pc and make your cctv pc as a cctv web server. Follow the guideline below.
First u need to install dynamic ip software like no-ip, dyndns updater, and u can find dynamic ip software free over the internet.
For me, easy to use no-ip software because it’s easy to setup and configure. Get Dynamic DNS for your domain , and download the software.
After software downloading finish, open ducsetup.exe from where u download folder.
Just click next and follow the instruction.
Once you finish the installation, one pop up windows come out, and need to key in email and password. How to get the email and password? U need to register with no-ip website first and please make sure using a valid email address.
After finish register with no-ip website, u need to create a host from website no-ip, log in with your email registration and click add host. Fill in host like : mijie, and select which one u one for the hosting, example :mijie.myftp.org
Normally u need to wait around 30 second to 1 minute to get your host from no-ip website. To check your host already create, go to start and click run: type cmd and command prompt will pop up to your computer, and type : ping yourhost.myftp.org, change “yourhost” to your host have u create before. example : mijie.myftp.org.
If they reply, means your host already active.
And then back to the dynamic-ip software “no-ip”, and fill up your email and password. And click refresh host list, and your host will show.
Done, now your cctv pc ready to be web cctv server. To test or check your web server function, ask your friend to open web browser and type your host and check whether your web cctv server running.
Posted on July 24, 2007 by Admin
As with regular cameras, the lenses on CCTV surveillance equipment determines how wide an image is created and how much light is let in. Lenses are generally sold separately from cameras.
As with most CCTV surveillance equipment, lenses are fairly interchangeable between different brands and cameras, so you can usually reuses lenses from multiple sources. The lenses you purchase should match the format of your CCTV cameras, however: 1/4″ lenses work best with 1/4″ cameras. It is possible to use a larger format lens than the CCTV surveillance equipment calls for, but it is not recommended.
You also need to decide what type of lens your CCTV surveillance equipment requires. Fixed focal length lenses offer only one set field of view and are the least costly. To change the resulting image, you need to switch lenses. Variable focal length lenses and zoom lenses offer greater flexibility, allowing you to adjust your image’s field of view when you set the CCTV surveillance equipment up. Motorized zoom lenses, the most costly type available, give you the ability to control your cameras remotely. If you want to zoom out for general surveillance and in for detail when you spot suspicious activity, motorized zooms are the way to go.
If you will be using your CCTV surveillance equipment outdoors, look for a lens with an automatic iris. As in the human eye, the iris of a lens is what controls the amount of light coming in to the camera. Automatic irises can significantly improve performance for outdoor surveillance, where light levels vary considerably. However, you can save money and use a manual iris lens when the scene illumination never changes, for example in an illuminated store or office.
Credit to :
http://www.buyerzone.com/security/video_surveillance/tmm-cctv-surveillance-equipment.html
Posted on July 19, 2007 by Admin
CCTV surveillance systems play an important role in fighting and preventing local and international crime. These closed circuit television systems were in place in London before the July 7th bombings and this footage is being used to identify suspects and investigate the attacks.
Besides fighting terrorism, CCTV security systems installed in public places or retail markets can deter crime, provide the police with leads, help citizens feel safer, and improve the economy of a crime-stricken area. Most CCTV systems have now gone digital for improved performance, surveillance camera maneuverability, and quicker feedback as compared to analog systems.
Implementing CCTV systems
Law enforcement or security professionals best support CCTV systems. These teams of professionals need to monitor the CCTV video evidence on a timely basis and they need to be properly trained in order to interpret suspicious behavior caught on the system. When all of these factors are in place, then the CCTV security system will be effective for keeping citizens and shoppers safe.
In the case of some municipalities or businesses not being able to afford all of the necessary components of a CCTV system, many CCTV providers can recommend a scalable approach so that priority security needs may be addressed first. Then, additional surveillance cameras can be purchased in succeeding years as the budget allows.
Digital CCTV systems and surveillance cameras
A modern digital CCTV security system consists of hardware and software components that collect and transmit vital surveillance camera information over fiber optic lines to control rooms staffed by security professionals and equipped with digital CCTV monitors. An example of the surveillance cameras used for reducing crime in LA’s MacArthur Park include CyberDome DayNite 25X cameras equipped with removable infrared cut filters, 25x optical zoom lenses, 12x digital zoom capabilities, and 360-degree PTZ (pan tilt zoom) capabilities. This MacArthur Park system also includes GE Storesafe DVRs (digital video recorders) and GE KTD-405 keypad controllers. DVRs are capable of saving CCTV data to a PC for up to ten weeks of recording and some even feature motion detection technology, which means that the footage is only recorded when motion triggers the DVR system.
Digital surveillance cameras range in type from compact, fixed cameras to direction-controlled models that can see in the dark under various lighting conditions. CCTV decision-makers need to know what kind of job each surveillance camera must fulfill. Will it watch the flow of passerby’s (fixed cameras) or will it need to monitor a crime-targeted area (dome cameras with PTZ functions)? These video security managers also need to consider weatherproofing their surveillance cameras if the cameras are mounted in an especially hot or cold climate, or if the viewing fields could be obscured by dirt or dust.
What kind of crimes do CCTV systems prevent?
Evidence has shown that CCTV systems mostly deter property crimes and robberies, but not more violent crimes such as rape and aggravated assault. CCTV systems may not catch these crimes because they may occur away from the surveillance cameras in more deserted areas. Fortunately in most situations, when a CCTV system is in place, criminals generally shy away from these monitored areas fearing prosecution since these recorded images can be used in court. As noted previously, in order for a CCTV system to be effective, the electronic system must be used in conjunction with human know-how and skills and it should be carefully integrated into existing security plans.
CCTV: Looking ahead
In the next few years, digital CCTV systems will evolve into wireless CCTV systems that employ GSM (global system for mobile communication) or 3G (third generation) connections. These wireless systems are completely portable and can deliver live images to a PC, an Internet phone, or a laptop. The cameras are tiny, but include many of the sophisticated features of full size digital CCTV cameras. CCTV customers are also seeking IP-based solutions with LAN/WAN delivery options despite some lags in the technology’s image quality and frame rate.
“Make no mistake about it, the future is wireless,” says Thomas M. Wade, president of Samsung CCTV. “We’ll be pushing crime-related images to police cars in the future. Imagine an abduction or robbery in which the responding units are seeing the video and the suspects as they are rolling to the scene. It’s all possible and it is the general direction of the industry.”
There is also talk of linking CCTV cameras together to form a worldwide network to prevent terrorism, but this international surveillance system would cost billions of dollars and would require extensive international cooperation.
Posted on July 16, 2007 by Admin
We should install close circuit television (CCTV) because cctv can protect your house or office from criminal. I’m not guarantee 100% u can protect your home from criminal but u can decrease the risk from criminal to enter your house.
When u install CCTV security system, CCTV can monitor your house every seconds, hour time, 365 day a years. So chance to criminal enter your house can be low risk. But, some people said, ” i can’t install CCTV because not enough money to do it, i have a lot thing to do with my money”. You r wrong actually, why i said u are wrong, because for CCTV installation, below RM 1000, u can install CCTV, better than u lost your money because of criminal enter your house and thief everything from there. Which one u want??? lost a lot of money around RM2k-3k like your TV, laptop, anything in your house or just spend around below RM 1k to install CCTV security system…if i in this situation of course i choose to install CCTV better than i lost lot of money.
One issues is, ” i do know how to install CCTV ” , because i don’t want to take a risk from contractor cheat me to install CCTV. Hello!!… u can learn what?? learn about CCTV basic, just read and learn a little bit about CCTV, than after that u can install CCTV by yourself, Still don’t want??? just ignore and wait for criminal enter to your house…..Thats all.
“Spend ten minutes or half hour one week to learn about CCTV, then install CCTV by yourself, better than you spend a lot of time to surfing the internet and finally u wasting your time and get nothing to protect your house”
Think smart and work SMART.
Posted on July 14, 2007 by Admin
What are the difference between ccd camera and dome camera?
the difference is in the quality of the image sensor of both camera.
A CMOS camera has a less-expensive image sensor, means low quality picture. The other benefits of CMOS are size, and low-power consumption. Most CMOS cameras can even be operated for several hours on a single 9-volt battery! The low-power consumption comes at a price however. CMOS cameras have a lower resolution and less color quality than the CCD cameras.
CCD Cameras are much more sensitive to power fluctuations, due to the fact that the CCD Sensors have 4 integrated processors compared to the one processor found on a CMOS sensor. CCD cameras usually have much better picture quality, resolution and color balance. The drawback of a CCD camera is higher-power consumption and sensitivity to minute voltage changes
CCD cameras do not like direct sunlight. That can damage the image sensor.
CCD sensors have been in mass production for a long period of time and therefore a more mature product than CMOS sensors. CCD sensors tend to produce higher quality and more pixels. As a result, the images produced by CCD sensors are much better than those from CMOS sensors.
The third major difference between these two sensors is that the manufacturing costs of CMOS is much less expensive than CCD.
Based on these differences, you can see that CCDs tend to be used in cameras that focus on high-quality images. CMOS sensors tend to have lower quality, lower resolution and lower sensitivity. There is a trade-off between higher image quality but higher power consumption (CCD) compared with lower image quality but longer power consumption (CMOS)
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