Posts Tagged ‘ wireless digital video cameras’



Wireless Security Solutions

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Thursday, December 9th, 2010

Wireless Security SolutionsTwenty first century electronic technical advances have created more reliable yet cost effective wireless security solutions than ever before. Most wireless security solutions are generally easy to install and simple to operate. In fact, they are often considered as do-it-yourself type projects and are specifically designed with that intention in mind.

There are basically two types of wireless security solutions, wireless security alarm systems and wireless digital video security camera systems. Each takes advantage of up-to-date wireless technology to enhance the features of their systems. Let’s take a look at each and see what is currently available.

As previously mentioned, one type of wireless security solution is the wireless security alarm system. There are two big advantages to using a wireless alarm system. First, the system itself is easy to install and operate. Second, aesthetically speaking, a wireless alarm is much more pleasing to the eye because it doesn’t require that a wire be run from each and every sensor to the master control panel.

Wireless alarm systems can be used for just about any application anywhere. A basic residential alarm system typically has door and window sensors on any readily accessible door or window (usually those above the second floor are not armed with sensors due to their inaccessibility). In addition, the system may utilize one or more motion detectors as well.

Each of these devices must communicate with the master control panel. They use this line of communication to tell the control panel that something has occurred (an event) and that their internal mechanism (usually some sort of switch) has been activated (triggered). Each sensor in an alarm system must have a separate transmitting wire that is run to the master control panel.

Wireless security solutions for alarm systems eliminate the need for this wire. Instead, each sensor usually has its own on-board power (a battery) and transmitter in addition to the switching device that is used to detect an event. When a trigger activates the sensors switch, the transmitter is turned on and sends a signal to the master control panel to initiate the alarm.

These sensors, including their batteries and transmitters can be quite small. The manufacturers take advantage of the latest electronic technology so the entire circuit to run the switching mechanism and transmit the signal can be created on an Integrated Circuit (IC) chip less than an inch in size.

The other major type of wireless security solution is a wireless digital video security system. Technological advances in these systems has taken leaps and bounds, compared to the original, bulky, analog parent cameras. In addition, the with the advent of digital video, the digital video security camera industry has been able to reap the constantly improving benefits produced by the computer and cell phone industries as well.

A typical digital video security camera system has three components. The camera or cameras capture video light images and transform them into electrical images. These images are part of a digital video file that is created by a Digital Signal Processor or DSP that accompanies the Digital Video Recorder unit or DVR. The digital file can be viewed live or at some later time on the monitor.

There are basically two different types of wireless digital video security systems. Both systems involve using radio waves to send their signals wirelessly but each type uses a different technology.

The first digital wireless security solution is the use of wireless digital video cameras. These cameras are no different than their “wired” counterparts accept they do not require a video transmission cable (usually RG-59 coaxial cable) to be run from each camera to the DVR unit. Instead, they send their data which is digital, in radio wave form either to a receiver that is connected to a DVR or to a wireless DVR that has a receiver built in.

The second digital wireless security solution is the use of wireless digital video cameras call Internet Protocol or IP ready cameras. These cameras contain on-board circuitry to not only capture and create digital data, but to transmit it in the form of a file that can be sent long distances using the Internet as the vehicle for networking. These cameras usually contain their own web server technology and transmit using WiFi technology.

So, as you can see there is a lot to talk about concerning wireless security solutions. If you are interested in a specific technology, check Security Camera King’s CCTV Learning Center for more information.

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Web Based Wireless Camera Home Security

Written By:
Wednesday, October 13th, 2010

Perhaps one of the most recent technological innovations in the area of digital video security is web based wireless camera home security. In the following article we’ll talk about what it is and how it works and hopefully provide you with enough information so you can decide if it is right for you.

Simply put, web based wireless camera home security is the use of wireless digital video cameras and the internet to provide security and surveillance for your home. A web based wireless camera home security system may be self- installed or installed by a professional. Likewise, the system can be personally monitored by you or by a 24 hour, 7 days-a-week professional monitoring service.

For the sake of information, we’ll separate web based wireless camera home security into two categories based on how the video signal is sent to the internet. One method involves the digital video camera sending its video transmission data via radio signals to a corresponding receiver, server, or DVR and the second method involves the digital video camera directly communicating with the internet. Each method accomplishes the same goal, allowing the home security cameras to be monitored, and in some cases controlled, via the internet.

Wireless digital video cameras can become web based wireless camera home security systems when they send their video transmissions via radio signals to receivers, servers, or DVRs which contain the technology to act as web servers and send digital information via the internet. These cameras normally use the 900 MHz or 2.4/5.8 GHz band technologies to transmit their video data. Incidentally, these radio band technologies are the same type used for land based wireless telephones.

These cameras contain a built-in transmitter and antenna with which they send the video data. This data can be sent to a corresponding receiver which is connected via a video transmission cable to the DVR. The DVR processes the signal and sends it via built in web server technology over the internet.

This method is not restricted to using a DVR. In fact the receiver can contain the web server technology and be connected to the internet for monitoring purposes and if so desired, a personal computer or DVR can be remotely located anywhere in the world there is broadband internet access to record the digital video files. The key here in this method is that the cameras transmit to another device that prepares the video data for transmission over the internet.

The alternative web based wireless camera home security method is to use wireless digital video cameras that can connect directly to the internet via a wireless modem or router. These cameras normally contain their own web server processing technology so they can package their video transmission data in a form that is compatible for internet use. These cameras usually send their signals via IEEE 802.11 format or WiFi to a corresponding wireless device such as a home router or wireless broadband modem which in turn is connected to a broad band internet connection. The cameras (as well as the DVRs mentioned in the first method) are usually referred to as wireless IP or internet protocol ready.

Regardless of which method is used to transmit the digital video cameras’ signal over the internet, a GUI or graphical user interface must be used to view and sometimes control the digital video cameras. For IP ready cameras, servers, or DVRS the GUI may be any typical web browser such as Windows Internet Explorer. On the other hand, depending on the manufacturer, the GUI may be a proprietary software program that must be installed on the device used to access the cameras’ data.

Web based wireless camera home security can be incredibly versatile in that the user can be notified via email based on a variety of “triggers” or home security cameras can even be monitored using 3G or 4G smartphones. Also, depending on the manufacturer and type, the cameras can even be controlled remotely over the internet. For example, a Pan-Tilt-Zoom (PTZ) camera can be controlled remotely from thousands of miles away to move or zoom in on objects.

Regardless of which method you choose, web based wireless camera home security is easy to install and economically priced for just about any budget. Contact our security experts via Live Chat or Telephone at 866-573-8878 Monday through Friday 9AM – 6PM EST if you desire any additional information or would like to purchase one of our systems.

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