KeyExpress.com Blog

CCTV stands for ‘Closed Circuit Television’ and can refer to any system of cameras that are either wired together or used on a single server. Normally these are used for surveillance and security purposes and can be used to either record footage, to transmit it, or as part of an intercom system.

While for many, CCTV is synonymous with cameras mounted in the corners of various shops or outside night clubs, it actually has many other uses. This extends to uses around the home, and today more and more people are installing security systems for there home developed by the likes of Samsung Techwin, Hikvision DVR and Bosch Security Systems to try to prevent crime in and around their homes.

The way in which you’ll use CCTV around your house is fairly different from how it might be employed in an office or a shop. Firstly you most likely won’t want to be filming the main rooms of your house, and there’s really relatively little need to film anything in your living room, bedrooms and bathrooms (in fact where the latter two are concerned it’s simply not advisable). While on a shop floor you might catch a shop lifter, in your own home you’re unlikely to have many crimes going on in your living room (ones you didn’t commit at least) – and if a thief is steeling things from your living room then you will most likely have caught them breaking in with cameras outside.

For this reason then, home security cameras work best when filming the front entrance to your home. This then means that any breaking and entering that takes place from the front of the house can be filmed so that most breaking and entering will be caught. An added bonus of this system is that it can then be linked to a home intercom system which will enable you to check out your visitors before deciding to let them in – and to check them out before you even let them know you’re home. If you live in a crime hot spot then you may also want one in your back garden to cover all options. Other things to consider when locating your cameras are whether or not your want them to be seen (it can work as a good deterrent) and making sure that they won’t be broken or deactivated. You should also be aware that you should not film any areas that are not on your property as this is illegal in many countries and states and can be considered spying or impeaching on privacy.

When selecting your home surveillance system you should ensure that you go to a reputable make such as Bosch Security Systems, Hikvision or Samsung Techwin. You should also ensure that they conform to the ONVIF global standards to guarantee a basic level of quality. You should also select a digital system such as Hikvision DVR which will be far more suited to home use – allowing you to delete files at will and install motion sensors.

Home CCTVs are becoming increasingly important for security. Author recommends Bosch security systems and Hikvision DVR for your home.

Article Source:http://www.articlesbase.com/home-security-articles/why-get-home-cctv-1631139.html

Think you and your family are safe and sound when your front and back doors are locked. Well you better think again! Lock bumping and the bump key has changed the game for home security.

Bump Key vs House Key

Nearly every door to every home in every neighborhood can be unlocked or opened in a matter of seconds with virtually no noise via lock bumping. Over 90 percent of all doors in America use a pin tumbler lock which is vulnerable to lock bumping. This locking system is so old and outdated that it was patented during the civil war. Lock bumping as it is now called was first discovered during the 1970 s by a small circle of locksmiths in Denmark. However that was then and this is now. With the advent of the internet it was only a matter of time before the technique of lock bumping would reach America and our doors. There is a solution and to protect yourself and your family against bump keys you need to update and replace your old pin tumbler locks with new high security locks. It looks like there is a few solutions to this lock bumping craze. You can either buy yourself a new lock or buy a non lock device that basically stops the inside deadbolt handle from turning. It seems that no lock is fully bump proof but these locks below make it a lot harder for the average joe to bump the lock. Bump Resistant Locks:

• Schlage Primus
• MultiLock
• Kiwkset
• BiLock
• Medeco

Deadbolt Knob Stopper:

• Lock Jaw

Also a good thing to do to your current lock is spray some lock lubricant or WD40 into it. The lubricant will make the springs and pins move a lot faster with create less resistants thereby having them fall back into place so that they don’t stay up in the cylinder which allows it to then turn or open.

For more information on lock bumping and how to protect you against it, visit our public service site Lock Bumping .org

For more information about Lock Bumping .org visit this link.

Article Source:http://www.articlesbase.com/home-security-articles/lock-bumping-1628868.html

CCTV, or ‘Closed Circuit Television’, is a great way to monitor and record the goings on in your business and is offered by many manufacturers such as Hikvision, Samsung Techwin and Bosch Security Systems. This has almost endless uses for almost any business; protecting assets, materials, supplies, products and profits and so proving a practical investment to help save money and protect employees and clients. Many private homes are now also utilising CCTV to help prevent crime and keep families safe.

The term ‘closed circuit television’ refers to the fact that such a system uses many on-site cameras that are linked and played back in the same place – unlike ‘normal’ television which utilises an aerial to receive a signal from somewhere else (although today that’s something of a misnomer and as we’ll see, some forms of CCTV do allow transmission). Today there are multiple types of CCTV however, meaning that it’s no longer a simple matter to choose the solution that will work best for you.

There are many things to consider when choosing a CCTV system, but the first and most obvious option is picking between either digital or analogue camera systems which work in notably different ways. While an analogue system will record through a television straight onto a VHS, a digital option such as a Hikvision DVR (DVR standing for ‘Digital Video Recorder’) will save a digital video file in MPEG or H.264 to allow you to view the file through computers or to store them on a CD or memory card. This also means that the files can be sent across a network or online to view remotely, and means that an individual can monitor their home or business while away from work or even while on holiday. Digital systems also allow the user to tweak variables such as the spatial and temporal resolution (the latter referring to the frame rate) so that you can edit the file size to record in better quality or alternatively keep the file size down. When choosing the type of DVR you should also consider what encoding method your system uses, and it’s important to note that H.264 is capable of better quality while keeping the file size smaller. Most DVRs from Hikvision, Samsung Techwin or Bosch Security Systems etc will now utilise this type of encoding. DVR can also be programmed to record at certain times or only during movement.

Analogue security systems however rely on older techniques whereby the footage is recorded through a VHS. This means that in most systems only one camera is recorded at a time meaning it’s possible to miss vital moments. However they do have advantages and won’t crash or freeze and you will never lose your footage as a result. Furthermore it can be simpler to operate and cheaper to install, making it a good option for smaller businesses (particularly where any angle can record the entire office/work floor) and for older users. Make sure that you system conforms to the ONVIF global standard to ensure quality either way. The above mentioned makes such as Bosch Security Systems all should.

With CCTV there are also one or two legal issues to consider. Firstly in most countries and states you can only place CCTV in areas pointing at your own property or the immediate area (otherwise it’s spying).

Author is an expert on CCTV and DVR technology; he recommends Hikvision DVR and Samsung Techwin products.

Article Source:http://www.articlesbase.com/home-security-articles/a-starter-guide-to-cctvs-1627914.html

For a good home security system to be effective it has be versatile.  Too many people are still relying on simple, outdated systems to protect what they treasure most: their families and personal possessions.  Alarms are an excellent first step in protecting your home, but they are only one step.  No one knows this better than burglars.  

Many people don’t realize it, but professional burglars often know the most about home security systems.  They study them so that they can easily enter any home, even homes with alarm systems.  The fact that burglars know as much as people who work in the home security industry and often much more than home owners is a sad, scary fact, but it is also a reality.  For this reason, to keep our families and belongings safe, we need to take some initiative.  

When is the last time you took a good look at the overall security in your house?  If, like most people, you haven’t thought about the level of security that your current systems are providing, now is the time.  Over the past few years, there have been incredible advancements in the area of home security systems that you might not be aware of.  Why not take a few minutes to learn about some of the exciting new technologies and innovations that smart home owners are turning to in these turbulent days of insecurity.

There are few things scarier than having an intruder in your home while you are sleeping.  Did you ever think about what you would do if you heard footsteps in the hall, slowly approaching your bedroom, in the middle of the night?  It can take ages to find the phone and start dialing numbers.  What you really need is an effective way to deal with burglars that are smart enough to get past your first line of defense.  

One of the best ways to overhaul your system is by adding motion detectors.  These small detectors can mean the difference between life and death.  They provide that extra layer of protection that you need, and undoubtedly, just knowing that they are there will let you sleep easier.  An intruder who gets into your home is free to move around as he pleases.  Burglars have no such luxury in a house protected by motion detectors, however.  These detectors are placed in areas where thieves are most likely to enter.  As soon as a detector notices something out of the ordinary, it is triggered, immediately notifying the command center responsible for monitoring your house.  Seconds after a sensor goes off, help is on the way.  Some people hesitate to put motion detectors in their homes because they fear that their pets will trigger them.  They think that in the end, these detectors will cause more harm than good.  In reality, nothing could be further from the truth.  Detectors can be set to recognize your pets so that it is impossible for your dog or cat to set them off.

Detectors are a great second line of defense.  It is worth your while to consider installing some today.

Nothing is more important than protecting your family and when it comes to home safety you should explore all of your options. Visit adt today and get expert assistance.

Article Source:http://www.articlesbase.com/home-security-articles/motion-detectors-second-line-of-defense-1623943.html

The word siren first originated in Greek mythology and was also later used to refer to mermaids. Language and literature have used the word siren as indicative of dangerous temptations. The siren as we understand today is not something dangerous, but is generally a warning signal either to stop or proceed, based upon who has used it.  So, though the siren is in itself not dangerous, ignoring a siren, especially a police siren, can have dangerous consequences.

The first models of sirens developed during the early 19th century consisted of a pneumatic tube and two disks. The disks were perforated and one of the disks rotated. As the air flowed from the tube to the fixed disk and the other disk rotated, a sound was produced by the interference in the airflow. Later sirens used two slotted cylinders, placed concentrically, with the inner cylinder rotating and the outer remaining stationary.

The tone was created by the interruption of airflow as it passed through the slots. All types of modern sirens, including a police siren, are modifications of this basic pattern.

After the advent of electricity, the compressed air ceased to be a necessity for a siren. The cylinders continued and inside the inner cylinder a centrifugal fan was fitted which produced the necessary airflow. Then to make the sound output more efficient a horn was fitted to the unit. The horn has the ability to transform the sound waves of the siren to the type of sound waves to be released to the outside. Different types of horns and sounds are available for a present day police siren.

The two basic types of sirens are pneumatic sirens and electronic sirens. All conventional sirens were pneumatic sirens and its energy requirements were much more compared to present day electronic sirens. Pneumatic sirens are also known as mechanical sirens. In electronic sirens different types of sounds are synthesized with the combined action of sound modulators, oscillators, and amplifiers. A police siren today is mostly an electronic siren though some police vehicles may be fitted with both a pneumatic siren and an electronic siren.

In some European countries an in-between type of siren known as electro-mechanic siren is also in use. This type of siren will typically have two air horn sets of higher and lower pitches. The air compressor switches between the two sets so that the siren sound alters between high and low. The two tone hi-lo sound it produces is a common sound pattern for a siren. Besides these, a police siren sometimes uses a tri-tone as well. The power consumption of an electro-mechanic siren is less compared a mechanical siren, but its maintenance is not easy.

Though the hi-lo sound is frequently used in a police siren, the most frequently used police siren sounds are wail and yelp. The long dragging sound that typically sounds like a wail is called a wail. And the faster sound that is more akin to a yelp or a bark is called the yelp. Besides these, a modern police siren has many more sound choices, including those, which the operator can manually produce.

Extreme Electrical Dynamics is a one-stop shop for police siren and many other items like Flashlights, Sirens, Deck Lights, LED Lights, etc. Please visit the site for more details of various items available - http://www.extremetacticaldynamics.com/

I am a Microsoft Certified Professional. I conduct Training and Certification Guidance for
Microsoft .Net Certification Courses through my training institute-Sierra Infotech. I also own and manage a
SEO Company and
article Directory.

Article Source:http://www.articlesbase.com/home-security-articles/the-history-of-police-siren-1621758.html