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Saturday, November 26, 2011
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Friday, November 25, 2011
Wireless Security Systems - The True Cost
Wireless Security Systems - The True Cost
Wireless Vs Hardwire
This is an ever-growing debate within the security alarm industry; both sides have their opinions as I have mine. Since starting KeepSafe Systems, I have never installed a wireless security system. There are several reasons starting from appearance, reliability and sustainability to never having the need to and always finding a way to get a wire where it is needed.
Appearance is a large concern of many homeowners. Although transmitters have gotten smaller over the years, wireless security systems involve the installation of boxy transmitters around your doors and windows. Wireless security system supporters will often tell horror stories of holes drilled throughout your home or wires stapled all over your walls. Yes, I have seen these types of installations, for the most part, they are done by inexperienced or lazy technicians who prefer wireless security systems. Although some wire runs can be difficult and very occasionally require surface runs, there is no excuse for sloppy workmanship. Pick your security alarm installer very carefully; often the small business owner will take more care in ensuring the quality of the installation.
When it comes to the reliability of security systems, hardwire will always be the more reliable of the two. Wireless security alarm supporters of course will say "modern wireless security systems are supervised", basically this is passing over the pitfalls of the technology and adding a feature to tell you when the technology fails. This inevitably runs into expensive and time wasting service calls, equipment replacement and potential false alarms. One need only look at the cordless phone to see the pitfalls of the wireless technology. Sure they are great when you first purchase them, however, age and interference take their toll and sooner or later you have a paperweight with buttons and an LCD screen.
Sustainability is potentially the most expensive reason for choosing hardwire security systems over wireless. I can't even begin to count the changes in wireless security technology and frequencies used since getting into the business back in the late 80's early 90's. Even the wireless security system supporters will tell you that technology is always changing (Except they use the word "advancing"... it sounds better in advertising). So how do wireless security system "advancements" affect the owner of a wireless security system? Easy, say for example you were the unfortunate victim of a wireless security system sales person in 1995. Chances are if one of your motion detectors fails you will be hard-pressed to find a replacement. Simply put, you will now have to purchase an entirely new security system (Control panel, detectors, keypad etc) which depending on the size of your security alarm system will cost you as much and possibly more than if you would have installed a hardwired system to begin with. So in all fairness, I feel I should tell you what is in store for you if a hardwired detector fails. Simple, you replace the detector. Hardwire detectors are simple switches and most hardwire security system detectors are interchangeable regardless of the manufacturer.
Another factor within the realm of sustainability is the cost of upgrading. Back to the system installed in 1995. Yes there have been significant changes in security alarm technology since then. In the hardwire security system world, these changes are mostly in the area of convenience, aesthetics and features. If all your detectors are in working order, upgrading a hardwire security system simply involves changing the control panel and keypad(s). This is generally a fairly easy process and is substantially less expensive than upgrading a complete wireless system.
One last consideration in choosing hardwire security systems over their wireless counterpart is the selection of detectors. Although you can retrofit almost any hardwire detector to a wireless system, there are far more choices of detector types in hardwire. Take for example Carbon monoxide, water, natural gas, propane, vibration... and the list goes on. Wireless security systems are generally designed around the average security need of the consumer. Since detectors are not interchangeable across manufacturer lines, it would be financially unfeasible for a wireless security system manufacturer to create wireless detectors for every conceivable need. Even in the spectrum of standard detectors, there are some manufacturers who have extremely reliable detectors that only work on hardwire systems. Choosing a wireless security system can often result in you having a detector less suited for your particular application. Once again the average security need factor comes into play.
Inevitably, the choice of whether to have a wireless or hardwire security system installed is entirely up to you. In fact, your only choice may be wireless. Hopefully I have given you some information to help you along with your decision. If you have any questions, or would like to have KeepSafe Systems install or monitor a security system in your home or business, please feel free to visit us at http://www.keepsafesystems.ca/ or if you prefer real human contact I can always be reached at 604-874-8772.
KeepSafe Systems installs services and provides alarm monitoring services for security alarm systems in the Vancouver area of the Lower Mainland Fraser Valley British Columbia
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Thursday, November 24, 2011
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Wednesday, November 23, 2011
Security Camera System - Buyer's Guide
Security Camera System - Buyer's Guide
Although the application of CCTV security have not changed very much over the past years, the tools and equipment have significantly. Cameras became smaller, cheaper and better, but the major breakthrough happened in recording equipment.
Therefore many customers shopping for complete CCTV monitoring and recording systems are confused by such a verity of available products. Goal of this article is to guide buyers toward best possible and most economical type of CCTV equipment, based on intended implementation and requirements.
Selecting the right cameras.
It is virtually impossible to describe all types of available ones in this short article. We will focus our attention on most popular and widely used camera types instead.
CCTV security cameras produce images using CMOS or CCD (Charge Couple Device) chips. Tiny, very low price CCTV cameras usually use CMOS technology, produce poor quality images and have very poor light sensitivity. Decent quality CCTV cameras use CCD technology. The size of the CCD chip is normally 1/4", 1/3" or 1/2". As a rule of thumb, the larger the size, the higher the quality of the image produced and the higher the price. However, higher density 1/4" and 1/3" CCD chips can now produce as good an image as many 1/3" or 1/2" chips.
The number of TV lines in the security camera image is a measure of picture resolution (sharpness). The larger the number of TV lines, the better the resolution and hence, overall picture quality. Standard resolution camera may have 350-380 lines, over 400 TV Lines is generally considered good resolution while over 500 TV lines is considered high resolution. B/W chip cameras produce greater resolution and better light sensitivity, therefore suitable for use in dark areas where light conditions are poor most of the time.
On the other hand color cameras offer more realistic and natural picture. CCTV cameras are usually divided into different types based on the body of the camera used.
Professional grade cameras.
Have box type body with the ability to use different types and size of lenses. Exchangeable lenses enable this camera, to monitor objects from virtually any distance. Although for indoor use, they can be used for outdoor when combined with weatherproof housing. They are considered to be the most flexible and widely used by professionals for commercial installations.
Bullet cameras.
Bullet cameras are, as the name suggest contained inside bullet shaped housing.
Most bullet cameras are weatherproof and sealed without the ability to use different lenses. Great advantage of bullet camera is the small size and integrated design, some bullet cameras will even have infrared LED future built-in. Infrared technology is simply LED light in infrared spectrum (not visible to human eye). This light will illuminate viewing area, making possible monitoring in complete darkness. This is great future, but it only works up to certain distance (usually between 10 and 50 ft. depending on model) Vary simple to install and estheticly designed, bullet cameras are great choice for residential and do-it-yourself installations where monitoring objects are within about 25ft from the camera location (with standard 3.6mm lens).
Board Cameras.
Board Cameras are basically fixed lens mounted on a circuit board. These cameras may be packaged in a small case (Mini Cameras) or dome (Mini Dome) or simply sold unpackaged, for mounting by the purchaser. Lenses in these are either of a normal industry aperture or a "pinhole" lens of very small aperture. Pinhole lens cameras are often called "spy" cameras and may be mounted in a concealed way for covert surveillance purposes. The most popular examples of covert board ones are smoke detector and motion detector cameras.
Since the lenses in board cameras are pre-mounted, have a fixed iris and are usually of a short focal length (i.e. wide angle), their flexibility of usefulness is limited. However, this type of camera can provide a low cost solution in the right situation, particularly in a home environment. We have shortly described most popular types of cameras, lets now discus, how and where they mite be used.
Professional types with C/CS mount lens attachment generally offer best performance and many important futures, like lens control output, Back Light Compensation and many more...
Distance from monitoring object to the camera is not an issue, that is why ability to select different lenses, based on location is so important. Installation is bit complicated and professional installation strongly recommended. We recommend this type of security cameras for commercial installations.
Most Bullet cameras in comparison, do not offer high resolution and lens selection flexibility, but are likely to be weatherproof, some will have infrared light built-in and most of all they are relatively easy to implement. They usually come with 3.6mm lens witch are considered to be suitable for most standard installations (good for covering small to medium size room or equivalent).
For larger rooms or longer distances, cameras with 6mm or higher lens may be required. They are great choice for any do-it-yourself installation.
Board cameras in contrast are widely used in covert camera installations, sometimes called Spy Cameras. Many are basically board ones with built-in transmitter. We are not going to go into wireless cameras right now, as this would be enough material for completely new article.
Board cameras are sold as plain circuit board, for integrating into hidden camera devices. They are also available in dome housing, as vary popular Dome Camera or integrated with Smoke Detector, Motion Detector, Exit Sign and so on. Most also come with 3.6mm lens although some will allow lens to be replaced.
Over the time, most practical design has been Dome Camera with its aesthetic appearance it blends into surroundings, especially with drop down sealing, great for use in stores, lobbies, gas stations and other public places. Practical solution for covert installation are also, Motion and Smoke Detector cameras, they are absolutely not substitute for your security alarm or fire protection. They should always be selected based on the location of the camera (inside/outside), distance from the monitoring object, light condition and budget.
When shopping for security cameras, customers are faced with the fact that they will need to select one or another recording device.
The days of well-known CCTV time-lapse VCR recorder are almost over.
Although some customers still prefer this old fashioned recording solution, it is well worth to invest some extra money to purchase a good quality digital video recorder (DVR). Digital recorder transfers analog camera video feed into digital format, and stores it on hard drive. There are two major types of digital recorders on the market right now.
PC Based Systems.
A special board and software installed on the computer will allow camera inputs and store video on the hard drive.
Many people are under the misconception that personal computer with additional hardware installed, will do the job. This explains the hundreds of companies that have hung up a sign, taken out some ads and begun working out of basements and garages, holding themselves out to be DVR manufacturers and security specialists. The main problem with this type of CCTV recorders lies in the main component of it... Yes, it is a computer, designed to do unlimited tasks, but non well. The truth is that any computer based digital video recorder is, and will always be vulnerable to software crashes, hang-ups, system instability, virus related problems etc...
Stand Alone Systems.
Very similar in appearance and control functions to standard VCR recorders, are truly remarkable devices. Most video processing is done by hardware, therefore eliminating system crashes, video is also stored on hard drive in digital format. The basic operating system, usually Linux, is permanently stored on special processor, witch is impossible to overwrite or corrupt. Designed and manufactured with single application in mind, it is by far better in performance and reliability to its PC based rival.
Some DVR systems will even have remote monitoring capability, useful when monitoring is required in different locations through Internet or network. Most important futures to look for when selecting the right DVR recorder are motion detection and frame speed. The higher the frame speed the more fluent video recording. Motion detection will allow recording video from each camera only when motion is detected; this is great for extending video recording time.
Security Monitors.
Video from Security recorder could be displayed on regular TV monitor. It is OK to do it this way, for baby monitoring or residential application, when quality of the picture is not that important. However for professional installation, security monitors are as much important as cameras. They offer extended life of picture tube (necessary with any static picture, that can cause picture burnout) and much grater resolution.
Cables and wiring.
Finally any camera installation will require proper wiring. Good quality cable will prevent video degradation over long distance runs. It is recommended to use RG59 or RG6 coaxial cables as it is fully shielded and will prevent video loss up to 400 ft. Coaxial cables will require BNC connectors and proper installation possibly done by experienced technician. In short runs plug and play non-coaxial cables with factory installed BNC connectors may be used (up to 150 ft.). The plug and play cables are easy enough to install by not experienced users.
Cables for CCTV cameras consist of two cables bundled in one jacket. One cable for video and one for power delivery.
Conclusion.
Every CCTV system is as good and reliable as its weakest component. With this in mind, investing on highest quality and performance cameras, while purchasing low performance recorder, from economical and practical standpoint just does not make sense.
For example, why use CCTV cameras with 500 TV lines of resolution with monitor that offers only 380 or less. All the benefit of high-resolution camera is affectively sacrificed by limited capability of monitor. Asking questions is important before purchasing video security system, and your vendor will probably be able to give more details and recommend equipment for specific needs and requirements.
How to Choose Security Alarm Systems
How to Choose Security Alarm Systems
Thanks to the rise in crime rates in different areas, it has become increasingly important for people to have some security in their homes. And this protection is not standard as some will use heavy doors, others bolts, others padlocks and the like. The more we advance in science and technology the greater the things we are able to do and achieve. For instance we have security alarm systems which have the ability to detect any movement of an intruder within the perimeter of your home.
If security alarm systems are what you want to use to protect your home then there are factors you need to consider before you do so.
Firstly, you need to know your home as in the number of windows and doors it has and have a rough estimate of which ones you would like to have covered by the system. Choose where you would want your control panel and keypads to be. These are very important components of security alarm systems and they need to be in the most accessible place ever. One suggestion for placing the keypad is next to the main door of your house. This way whenever you enter your home and trigger the alarm, you can quickly reset it. The control panel is the control center of the whole system and this should preferably be in your bedroom where you can monitor things easily. If not, the other ideal option would be to have it in your garage or basement.
The distance between the windows and doors that you want monitored will matter a lot. This is because if the alarm system you choose will be wired, then you will need to determine the distance or the length of wire that will be required to connect the monitors to the control panel. Another reason for you to measure the distance would be because if you choose a wireless system then you will need to know the kind of signal strength you will get and where it will be ideal for you to place the control panel.
You will need to choose whether or not you will need a system that will have 24 hour surveillance or one that will be monitoring at intervals. This also depends on how much you are at home or even the amount of money you are willing to pay. Of course having your home watched for 24 hours is more expensive than having it monitored only at some certain hours.
Tuesday, November 22, 2011
Hybrid Security Camera DVR Systems Provide for Future Expansion
Hybrid Security Camera DVR Systems Provide for Future Expansion
People looking to install security cameras in their home or business have many options when selecting a camera system to install. Traditionally, most security cameras have been CCTV (Closed Circuit Television) style cameras which transmit video over an analog coaxial video cable. These cameras generally have a digital image sensor and then convert the video to an analog video signal to transmit over a coaxial RG59 video cable and plug into a Standalone DVR or PC-Based DVR with a BNC style connector. DVRs or PC-Based DVRs would then convert the video from an analog signal to a digital signal once again for storage onto a hard drive. In the last few years, a new style of security camera has become popular for many installations. These newer style IP security cameras have changed the way that many people look at the way security camera systems are planned and installed. IP security cameras contain a digital image sensor similar to the traditional CCTV cameras, however instead of converting the video immediately to an analog signal for transmission to a DVR, these new IP cameras compress the video using their embedded video processing chips and then transmit the cameras over a standard network cable back to a PC with NVR (Network Video Recorder) software. Many home and business owners are confused by conflicting stories about each type of system, making it difficult to choose a system that will work well for their instance.
Each type of system has benefits that should not be overlooked when selecting a system to suit your needs. Traditional CCTV cameras are much less expensive than most of the IP cameras on the market, and are completely interchangeable. Almost every traditional CCTV camera transmits the same format video, so cameras from one system, even an older VCR based system can even be plugged into a newer DVR. Despite many misconceptions, most recent traditional CCTV DVR systems also provide access over the internet, many even from PDA cell phones. When properly planned, these systems can deliver great picture quality and the ability to keep watch of your home or business over the internet with minimal impact to your budget. Newer IP camera NVR systems offer newer technology which can in many cases deliver higher quality video recording (sometimes higher than HDTV resolutions). These IP camera systems can allow home or business owners to achieve great views for the security of their business with fewer cameras in many cases. These cameras require only a single network cable to run to each camera, lowering the difficulty and cost of cabling in many cases however IP camera systems in general are usually not a lower cost, as the cameras are generally more expensive. Many of these systems even support the higher definition megapixel IP cameras, delivering 4-22 times the resolution of a traditional security camera. These NVR systems also usually offer remote viewing capabilities over the internet so that your IP cameras can be viewed from anywhere. Because IP camera NVR systems are still in their infancy in the industry, each camera communicates differently, so the NVR system that is chosen must be programmed to accept each brand, make and model of IP camera, otherwise it would not function with the NVR. These limitations can make it difficult to expand IP camera systems unless the added cameras match the list of supported cameras.
Many home and business owners have been led to believe that they need to purchase an IP camera system in order to view their cameras over the internet, however both types of systems are remotely viewable. Others may want the lower budget traditional systems, but do not want to limit their ability to expand their system in the future to include IP security cameras. That is why many PC-Based DVR systems like our Alnet Systems PC based systems can operate in a Hybrid DVR /NVR arrangement. These systems provide a compromise between budget and future expansion, allowing users to create a system with some traditional CCTV cameras and some IP security cameras. The Hybrid systems usually consist of a PC with a PCI or PCIe DVR card installed to provide inputs for the number of traditional CCTV cameras as well as a license for added IP security cameras. With this type of system, all of the cameras can be viewed on the PC screen and recorded together onto the hard drive. These analog CCTV and IP cameras can then also be viewed remotely together over the internet from a PC, Laptop, BlackBerry, Android PDA phone, iPhone, iPad and many other cell phones as well.
With hybrid capable security camera DVR systems like our Alnet Systems DVR cards, home and business owners can start out with analog security cameras alone, and simply add license later for added IP cameras or additional cards for more traditional CCTV cameras. The ability to expand the system slowly and use both newer and older technology together make hybrid systems a great choice to help meet budgetary requirements and still deliver desired features and picture quality. When building your next security camera system, consider finding a system that will allow both lower budget and higher definition IP cameras together.
Monday, November 21, 2011
How Safe Are You on a Bus Without Video Security and Backup Systems?
How Safe Are You on a Bus Without Video Security and Backup Systems?
The Nastiest Pick-Ups
The gruesome crime committed on board a passenger bus serves as a warning to all. The hideous beheading in the bus is an indication that video security cameras inside the vehicle could have alerted the bus driver and the other passengers that someone was fighting for his life.
Still this would not have prevented the crime because as killings go, these happen faster than the blink of an eye. But if the bus had alert security people onboard to beef up video security, the young man could have been saved. The unfortunate incident reveals the gaps in public transport safety.
Buses pick up fares at bus stops and anybody with a deadly weapon can get in without detection. There are no strict watches at the bus stops and metal detectors are not available to alert the bus driver to restricted items. Anybody can get on the bus - drunks, thugs, blood-thirsty maniacs and other lowlifes - and sit next to you!
How Safe are You on the Bus?
Airlines are strict about air safety to the point of paranoia; land public transport should be as vigilant because terrorists are not the only public threat; psychos and other oddballs are a growing menace and they can get on buses and trains anytime and anywhere.
These crimes can happen on public transport:
* Bombs left to detonate
* Unwanted sexual advances
* Robberies
* Harassment
* Lynching
Anybody can be victimized while other passengers can only watch in fear and frustration. With no alarms or alerts, passengers are left to fend for themselves if criminal elements pounce on them. The presence of video security camera systems will only record the scene but if this is backed up with an automated alarm system and if there are competent security officers strategically positioned in the public ride, criminals will back off.
How to Stay Safe in Public Buses without Video Security Cameras
If you or members of your family frequently take bus or train rides, take steps to protect yourselves. These tips should help you and your family while on the road:
What you should do:
* Stay cool when your cell phone rings; becoming flustered just distracts your attention.
* Bring an umbrella; this can be used as weapon. Petty thieves and rapists avoid women with umbrellas.
* Stay alert during the trip if you are traveling alone. Pickpockets prey on sleeping passengers.
* Avoid looking at your bag; this gives thieves the idea that there is substantial money in there.
* Separate coins and cash for expenses while on the road. There won't be needless unfastening of your purse or bag.
* If traveling with a group do not wander off without company and inform others if a visit to a washroom is urgent.
* Young girls should avoid wearing skimpy clothes that would invite malicious stares
* Girls should sit where there are more women.
At the rate things are going, the public transport sector is gearing up to protect their passengers by installing video security cameras in buses and taxis. But how about ensuring that metal detectors and guards are posted at every bus stop to prevent knives, bombs and guns from getting on the bus too?
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