Tuesday, October 12, 2010

Upgrades to the FPA-1000-UL Fire Panel Double Capacity and Enhance Ease-of-Use

A new generation of the FPA-1000-UL Analog/Addressable Fire Panel includes support for up to 508 addressable devices. Using two analog addressable loops, the FPA-1000-UL has doubled its capacity to support larger applications, such as schools, warehouses and office buildings.

Enhancements to the panel’s built-in Web interface have also made operation easier and more secure. New features such as online help and an offline configuration tool make provisioning more efficient. Its Web server and set of interactive Web pages provide an instant means to access important system functions, including status, history files, diagnostic tools and test data.

The upgraded panel also features additional flexibility for programming parameters, such as the ability to activate smoke detector sounder bases by zone and support for "smart" analog devices.

The FPA-1000-UL includes built-in Bosch Conettix IP technology for communicating over local or wide area networks for faster alarm reporting. The panel also alerts to the presence of carbon monoxide and other hazardous gases. This capability helps meet the requirements of new state laws for carbon monoxide and the standards set by the National Fire Protection Association’s NFPA 720-2009.

Listed by UL for central station, local, auxiliary, and remote station systems, the FPA-1000-UL Analog/Addressable Fire Panel has essential equipment built into the unit, such as notification appliance circuits, signaling line circuits, programmable relays, a power supply, and DACT. This eliminates the costs of purchasing and stocking these supplies.

For more information, visit http://www.boschsecurity.us/en-us/fpa-1000.

Monday, October 11, 2010

Why do progressive scan cameras help maximize image clarity?

Capturing moving objects is critically important to surveillance applications – for example, getting detailed images of vehicles moving or people running. There are two techniques used to render video: interlaced scanning and progressive scanning – and there is a noticeable difference in quality when it comes to capturing those moving objects!

Interlaced scanning technology was originally created to transfer analog video from the signal source (e.g., camera) to a CRT-based monitor. To create a complete picture, 480 active scan lines are required. The interlace camera divides the one image of 480 scan line image into two groups of 240 scan lines (Fields). One field with the odd and one with the even numbered scan lines, and then alternately sends them at 30 times per second. This delay produces distortion – such as flickering, and when there is motion in the picture motion blur, and “zipper” effect can be seen. While interlaced scanning has worked fine for basic TV, VHS, and analog video cameras, progressive scanning helps to maximize image clarity when moving objects are present.

A progressive scan camera captures the 480 scan line image all at one time. Then quickly sends the picture content line by line in a “progressive” manner. This method of image processing keeps the capture and sending of the complete image together (no field one/field two) thus producing clearer video with sharper motion details and virtually no distortion, zippering, or flickering.

Bosch’s IP cameras now offer all the benefits of progressive scanning – providing much better detail for scenes with moving objects – while maintaining manageable bitrates through the use of H.264 main profile compression technology.

However, it is not possible to capture then send progressive scan video and an interlaced video stream at the same time. But, we understand the importance and ease of camera focus and setup via a standard analog monitor. So, the Bosch engineering team has come up with a unique “service mode” feature. This mode activates the analog output and triggers the camera’s scanning system to move into interlacing mode. Now, the camera can be viewed on a standard analog test monitor. During this time, it is not possible to stream progressive scan video over IP.

When installation is complete and the “service mode” is turned off, the progressive scanning becomes active, and the Bosch IP camera starts to send high quality video images into the IP network.