Posts Tagged ‘ Wireless Security System ’

Wire Free Security Alarm Systems

Monday, October 18th, 2010

If you’re looking for no-hassle security alarms that are easy to install and operate, try using wire free security alarm systems. These security alarm systems detect and notify just like their “wired” counterparts, however the sensors used in these systems do not require a communication wire installed from each sensor to the control panel.

While some security alarm companies insist on professional installation of a wire free security alarm system, they are easy enough to install to be a do-it-yourself project. After all, that’s their biggest advantage. Wire free security alarm systems provide a nice, neat installation, with no need to drill holes in the wall, cut up carpet, or other similar installation headaches.

Other advantages to wire free security alarm systems include the ability to easily add, remove, or relocate alarm sensors. In addition, many systems are designed to include the operation of garage doors, remote appliances, and controlled lighting. Further, wire free security alarm systems’ sensors are versatile; they can be placed just about anywhere and are relatively free from the restrictions that prevent wired sensors from being mounted.

Wire free security alarm systems work just like their “wired” counter parts. That is, sensors are placed around the home or business in key areas or points (also referred to as zones) to detect a variety of actions, changes, or other data. Unusual situations (such as pool temperature or amount of rain water) can be detected by using custom made sensors.

The key behind the versatility in a wire free security alarm system lies with the fact that the sensor can be designed to detect just about anything and the information is sent wirelessly. A standard ‘wired” sensor works by either completing or breaking a circuit loop between the sensor and the master control unit. More complex systems have sensors that do more than just “switching” or “relaying” the circuit; they may also send important data (such as room temperature).

A wire free security alarm system sensor uses the same methods for detection, but instead of being connected to the control panel by a wire, it sends the information to the control panel via radio waves. For this reason, “wired master control panels” usually are not compatible with wire free sensors because the panels lack the radio receiver technology needed to acquire sensors’ signals.

Wire free sensors usually contain their own transmitter and antenna as well as the circuitry to convert the data or signal into a radio signal. The sensor also operates from on-board power in the form of a battery or rechargeable battery (some Lithium ion batteries that can be used in sensors can last up to two years without the need for replacing or charging).
Eliminating the need to drill holes through walls and other structures to run wires is just another benefit of a wire free sensor. In addition, many of these sensors can be installed without drilling a single hole as strong adhesive pads can be used to mount the sensor in place.

Wire Free Security Alarm Systems can also work in power failure conditions if the master control panel has a back-up battery. Most panels have NiMH (Nickel Meal Halide) back-upbatteries that are rechargeable and can furnish continuous power to an alarm system for 12 hours or more. Since the sensors contain their own batteries, no additional power supplies are required in the event of a power outage.

There are two factors regarding a do-it-yourself installation of a wire free alarm system that may be difficult for the amateur installer. First, professional installers have the knowledge and experience of performing numerous installations to be able to determine detection points (areas, regions, or zones). The do-it-your-selfer should be able to determine these areas, but careful study of the entire area to be secured, as well as the proper sensors needed are required. Too many sensors are wasteful and cumbersome to the system, too few could live unprotected areas.

The second factor that could present itself as a challenge is programming the master control panel. Once all of the sensors are installed they need to be linked with the master control panel and the alarm and alert notifications need to be programmed, as well as users and any other automatic settings.

However, these two challenges are also shared by “wired” alarm systems, so in general, installing a wire free security alarm system is no more complicated, in fact it is less so, than install a wired security alarm system.


Wireless Security Camera with Recorder

Wednesday, October 6th, 2010

A wireless security camera with recorder can be your answer to an easy to install and easy to operate security device. Technological advancements in electronic components and computer development have made a wireless security camera with recorder a reliable security device that is reasonably priced to fit just about any budget. Use more than one wireless camera with a recorder and you can create your own total coverage wireless security system.

Digital video security systems are becoming extremely popular these days for business use as well as in the home. In addition, there are so many features and/or options available that these systems can be placed just about anywhere for any application.

In this article, we’ll briefly describe a standard digital video security camera system and then elaborate on the differences between it and a wireless security camera system. Finally, we’ll list some of the features and/or options that are available for a wireless security camera with recorder.

A standard digital video security camera with recorder system is a component system that consists of one to many cameras, a Digital Video Recorder or DVR, and a monitor. The system operates with the camera “capturing” digital video and sending it to the DVR (which normally includes a processor as well). The processor creates a digital video file which is stored on the DVR and can be viewed immediately (live) or at a later convenient time.

The standard digital video camera contains one of two sensor chips that convert light energy into measurable electrical energy that can be used to create a video image. The lenses focus the field of view of the camera on these sensors. The chips are the Charged Coupled Device or CCD and the Complimentary Metal Oxide Semiconductor or CMOS.

After the sensor chips have created electrical data that can be used to create a digital video file, they send this data to the DVR and processor via a video transmission cable, usually an RG-59 coaxial cable. Each camera must be connected to a separate cable that is run from the camera to the DVR/processor. The processor than performs the necessary work required to convert the electrical data into a digital video file.

The processor is much like the processor in a personal computer, however security camera systems processors are highly specialized processors that are made to perform specific tasks necessary for digital video security systems. One important task of the processor is to reduce the size of the incredibly large digital video file without sacrificing the quality of the video. It does this by using a COmpression/DECompression or CODEC utility. Once the processor creates the digital video file it can be viewed on a monitor or stored on the DVR for archiving or to be viewed at a later time.

A wireless security camera with recorder system is operates in basically the same manner. The major difference with this system is that the wireless security camera does not use a coaxial video transmission cable to send the video data to the recorder. Instead, it converts the data into radio signals and sends the data as a radio wave to a receiver which is connected to the recorder.

There are a few variations on how the camera prepares and sends its wireless data. The most common method is for the camera to have an on-board transmitter and antenna that transmits a radio signal to a corresponding receiver. Many different radio frequencies and technologies are used, but the most common is the 2.4 or 5.8 GHz band technology. This is the same sort of wireless technology used on land based wireless telephones. Once the receiver accepts the signal it passes it on to the DVR/processor via a wired connection.

Another type of wireless camera is the Internet Protocol ready or IP ready wireless camera. This camera has its own web server technology that allows it to be connected directly to the internet. It normally connects wirelessly to the internet by sending its signals to your broadband wireless modem or router. The recorder can be connected anywhere there is internet access.

There are many features/options available for a wireless security camera with recorder. Here is a partial list:

  • • Indoor/outdoor cameras
  • • Day/night/infrared vision cameras
  • • Pan-Tilt-Zoom (PTZ) cameras
  • • Audio recording
  • • Battery (rechargeable) powered cameras
  • • Hidden/disguised covert surveillance cameras

This should give you some basic information about how a wireless security camera with recorder works and some the optional features that are available.


Security Camera System Wireless

Tuesday, September 14th, 2010

A digital video camera security system that does not use video transmission cables is normally referred to as security camera system wireless or a wireless security camera system. These systems offer the greatest versatility in camera installation since it is unnecessary to run an RG-59 coaxial cable from each camera to the Digital Video Recorder or DVR.

A security camera system wireless sends it video image data via radio waves that travel through the air, rather than by electrical impulses that travel along a cable. Most security camera system wireless send their data using 2.4 or 5.8 Ghz band technology, the same sort of technology used by land line based wireless telephones. Not all cameras utilize this technology, some use the 900 Hz or other signal frequency technology while wireless IP (Internet Protocol) ready cameras often use 802.11 WiFi technology.

The wireless camera may not be truly wireless, as a small low-voltage Direct Current (DC) power supply line may be needed to power the camera. This normally comes from a power distribution center that can transform household current into the type needed for several cameras and other equipment on the system. Cameras may also utilize individual plug-in adaptors that plug into a normal outlet and transform the electricity for use by a camera or cameras.

A security camera system wireless is truly wireless when the camera not only transmits its video data without the use of wires, but also when it uses rechargeable battery packs instead of a power supply line. The greatest benefit of these wireless cameras is the incredible versatility for use, including covert surveillance by using hidden or disguised cameras. Of course, the downside to using a rechargeable battery pack is that the power supply of the pack is finite and must be removed and recharged when the there is no longer enough voltage to support the camera.

Wireless cameras have their own on board transmitter and antenna. The camera functions like any other “non-wireless” camera however the on-board circuitry changes the video image data so that it may be transmitted via radio waves. The video data is transmitted to a corresponding wireless receiver, which is normally positioned in proximity to the DVR and is connected to the DVR by cable.

Each camera in a system uses a different frequency or channel so as not to interfere with multiple camera transmissions. Likewise the receivers normally have a selection of frequencies that can be chosen to match the frequency of each camera input (although admittedly confusing, often called channels as well). Receivers may be able to accept one, two, or four different camera signals. Some receivers can actually support 8 different camera signals, although generally multiple receivers with different frequencies selected are used for more than four camera inputs.

Wireless cameras have a range of operation. For most non-WiFi security camera systems wireless, i.e. those that use 2.4 or 5.8 GHz technology, the range is stated in the camera’s specifications as LOS or Line Of Sight. This means a camera with a 400 foot LOS range can operate properly with a distance of 400 feet between the camera and the receiver, provided their is a straight line of sight between the two i.e. without any objects blocking the path. When a camera lists a LOS range, it doesn’t necessarily mean that it won’t work properly if there is something obstructing the path between the camera and receiver. However, the range is normally reduced. Depending on the material or materials that are blocking the LOS (for example walls, windows, buildings, trees, etc.) the range is normally just reduced. Nonetheless, it is important to keep the LOS range in mind when purchasing a security camera system wireless.

IP ready wireless cameras contain their own transmitter technology, web server technology, and antenna. These cameras work a little differently in that they do not necessarily transmit their signals to a security system receiver, but often transmit their signals (already prepared for distribution over the internet) to a wireless modem or router. In these cases the range of operation is dependent on both the specifications of the camera and the wireless router.

A security camera system wireless offers the versatility of “almost anywhere camera placement” with the ease of camera installation. In addition these systems are reasonably priced. If you are interested in purchasing one of these systems talk to one our security experts for more information.


Wireless Home Security Cameras and Monitors

Wednesday, August 18th, 2010

Providing your own home security in the form of digital video camera systems is becoming one of the most popular methods of residential security and monitoring. In addition, wireless home security cameras and monitors are become increasingly popular as well because of their versatility in application, ease of installation and operation, and reasonable pricing that makes them affordable for almost any budget.

What is the difference between “wired” and wireless home security cameras and monitors? Basically, “wired” digital video home security cameras use some sort of cable, usually an RG-59 coaxial cable to transmit their video signals to the monitors and/or Digital Video Recorders or DVRs. This cable is similar to the same cable used by most cable television companies. Although professional installers normally mount the cameras and run the cables using the least obvious arrangements, some homeowners may find the cables a bit too obtrusive, especially if they install the cameras themselves and use a different method.

Visibility of the cable isn’t the only reason for using wireless home security cameras and monitors. Sometimes it may be necessary to mount digital video security cameras in locations that may be difficult to provide cable to or in areas that are so far apart that it is easier to use a wireless system instead. For example, many complete home camera systems are used in rural homes that may contain lots of acreage and additional detached buildings such as garages, shops, or barns. If these buildings are located a significant distance from the home, cabling may seem impractical so a wire home security digital video camera is used instead.

One specific application of wireless security cameras and monitors is when they are used as baby monitors. Wireless digital video cameras can provide you with the peace of mind of monitoring your baby 24/7 and make great baby monitors. The digital video camera that is used for this purpose is usually a wireless night vision infrared camera and monitor system.

Infrared cameras used as wireless home security cameras and monitors, especially as baby monitors, are extremely popular and useful. The camera contains one of two special electronic sensor chips, known as a Charged Coupled Device or CCD or a Complimentary Metal Oxide Semiconductor or CMOS. These chips are sensitive to infrared radiation in the near infrared spectrum. This infrared radiation or “light” can be seen by the sensor chip (and therefore the camera) but cannot be seen by human eyes. That’s why infrared digital video cameras make great baby cams!

Infrared wireless home security cameras normally have an array of infrared Light Emitting Diodes or LEDs that surround the camera lens or are located somewhere near the camera lens and are pointed in the same direction. These LEDs bathe the target area with infrared light (in this case a baby crib for example) but this light does not disturb the baby because the baby cannot see it.

Often times these baby monitor systems are wireless home security cameras and monitors. The signal is sent using by the camera using radio waves to the monitor. Since the monitor is not connected by any type of cable it can be conveniently moved from room to room to maintain surveillance of the baby.

Remember, wireless home security cameras and monitors are not restricted to use as baby monitors only. These cameras and monitors are great for many different types of applications where a wireless camera and monitor would by useful.

Wireless home security cameras can be purchased with almost any feature or additional option that is available for their “wired” counterparts. Some of these features include: cameras for outdoor use or indoor use; cameras that can record audio as well as video; cameras that have Pan-Tilt-Zoom or PTZ functions to increase their field of view; day/night vision cameras; several different camera types or shapes such as box, bullet, and dome cameras; and even cameras that can be networked using the internet (called Internet Protocol ready or IP ready cameras).

If you are considering the purchase of wireless home security cameras and monitors, talk to one of our security experts today. They can help you determine what components or system best suits your needs and budget. You can contact our security experts by using either our live chat feature or by calling the toll free number: 866-573-8878 Monday thru Friday from 9AM to 6PM EST.


Wireless 16 Camera Motion Detector Security Systems

Monday, July 19th, 2010

Wireless 16 camera motion detector security systems are the ultimate solution for digital video camera surveillance and security. The wireless cameras not only provide quick and easy installation, but can be installed just about anywhere. In addition, the motion detection feature provides for conservative storage needs on Digital Video Recorders (DVRs) and if used with the Tilt-Pan-Zoom (PTZ) function can be used to track objects or individuals throughout a camera’s useful field of view.

Typical wireless 16 camera motion detector security systems consist of 16 wireless cameras with motion detection, up to 4 wireless receiver units, one 16 channel standalone DVR unit, and monitor(s). However, there are several variations on this system based on the type of components used and the type of motion detection desired.

Let’s talk about the cameras of wireless 16 camera motion detector systems. The wireless cameras used in these security systems are digital video cameras. These cameras create video images by using one of two special sensor chips. A Charged Coupled Device or CCD or Complementary Metal Oxide Semiconductor (CMOS) sensor chip converts light energy into electrical energy that can be measured and used to produce high quality color (or black and white) video images.

These cameras transmit their video signals using built-in transmitters and antennas to receiver units. Most receiver units can handle up to 4 separate cameras at one time; that is why there may be up to 4 receivers used for a 16 camera system. The signals are normally transmitted over the 2.4 or 5.8 GHz band although there are still some models that may use the 900 MHz band. This wireless technology is basically the same that is used for wireless home telephones.

Wireless 16 camera motion detector security systems may use cameras with different ranges. The range of a wireless camera is based on Line Of Sight or LOS which means the maximum specified range is based on an unobstructed distance between the camera and the receiver. Cameras can still transmit with objects in the LOS but the maximum range will usually be reduced based on the type of material that makes up the object.

Wireless cameras may be indoor or outdoor types. Outdoor cameras are just like indoor models except they are enclosed in a protective case or cover. This cover or case protects the camera from weather and other natural elements from penetrating the case and thereby affecting the camera. These cameras are often rated according to an International Electrical code standard known as the Ingress Protection Rating. Cameras that protect completely from dust and various levels of water penetration are best so look for cameras with IP66 or IP67 ratings.

The cameras used in wireless 16 camera motion detector security systems may also be day/night vision cameras or night vision infrared cameras. Day/night cameras have very sensitive sensor chips that produce high quality color video with very little available visible light. Night vision infrared cameras produce high quality color video in conditions with visible light and high quality black and white video in total darkness by using infrared illumination.

Other options for these cameras include audio recording, pan-tilt-zoom, and hidden or disguised cameras.

Wireless 16 camera motion detector security systems may actually implement the motion detection function by one of two ways. The first method is by a motion detector sensor that is mounted directly on the camera or is a part of the camera case or mount. These cameras use something known as a Passive InfraRed or PIR sensor. The sensor works by detecting the changes in infrared radiation light in its field of view. Once a change is detected, an assumption is made that motion has caused this sudden change, and the PIR triggers a switch that turns on the camera or initiates recording video for a camera that is already on.

The second method of motion detection lies within the programming of the processor/DVR unit. These units can contain programming in the form of software or as hard wired programming that can detect movement in the camera’s field of view. This type of motion detection can be incredibly useful when used with PTZ functions because the camera can be programmed to literally track the movement of an object or an individual. These cameras are often used in parking lots and retail stores.

Wireless 16 camera motion detector security systems are the ultimate security system because of versatility, ease of installation, and affordable price. Check with our digital security experts to get your system today.