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No. 10/2010 (March 8, 2010)
Does the crisis end? - CeBIT 2010.
The world's largest trade fair for IT and telecommunications was held in Hanover between March 2 and 6, 2010. 4157 companies represented 68 countries. For comparison, in 2009 there were 4292 exhibitors, in 2008 - 5800.Over 100 companies returned to the fair after last year's absence, including AMD, Sony Ericsson, Motorola, Siemens. Over 300 other companies came for the first time - among them Google and Amazon. So the statistics seems to be rather optimistic, the decline in the number of exhibitors this year amounted to only 3%, while in the last year was as high as 25%.
Unfortunately, appearances can be deceptive.
Four large exhibition halls were closed, many stands did not have commercial character - the exhibitors took part in the event only because of subsidies. Plenty of space was occupied by exhibitions highlighting artistic achievements (International Forum Design). Crisis in European production had been evident in recent years, this year's fair confirmed another trend - for many producers Europe is no longer a priority market.
Due to bureaucratic barriers to the adoption of standards, many technologies still cannot be used on our continent. This applies, for example, to mobile TV, there are considerable delays in HD television, but also in fiber optic technology.
For this reason, Samsung - the leader in new technologies which presented a lot of new products at CES in Las Vegas - did not have its stand at CeBIT. Many other large companies were represented only by their German or European subsidiaries.
Does the crisis end? -Some think yes, but others are skeptical about it. |  | In the next issue we will present a report on technical innovations at CeBIT 2010. | ||
Quo vadis Europe? |
They are building the highest tower in the world in a seismically active region.
After the tragic earthquakes in Haiti and Chile there are doubts about the safety of building structures. In this situation, a major challenge is to build the tower shown in the picture below. The tower will be opened in 2012 and is to be 634 m high. It is worth to note that the current world's highest tower has a height of 610 m and is located in Guangzhou (China). The new tower is being built in one of the most dangerous regions in terms of seismic activity in the world.Where are they building the new highest TV tower? The answer at the end of this issue.
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Against the background of "low" buildings of the city, the Sky Tree tower can impress. - Where is it built?
The answer at the end of this issue.
Multimedia solution for theaters, concert halls, clubs and pubs.
During shows, concerts etc. the ability to monitor what is happening on the stage is a very valuable feature. The images are also invaluable in the wings and technical areas of the facilities, and in the case of clubs etc. - in other rooms for guests, without direct visibility of the stage.The owner of one of Krakow's jazz clubs required an installation for distribution of two video signals (from analog camera monitoring the scene and from multimedia player) to a network with three television receivers. An additional condition was the ability to easily switch between the two sources of signal, without a need of using individual remote controls of the televisions.
The main components of the implemented system are analog camera Sunnel SN-586 M11208 with Tokina M2311 lens, placed over the scene, and multimedia player A99391. The signals from the both sources are fed to TERRA MT-41 R871741 modulators featuring high maximum output level (about 90 dBuV). The outputs of the modulators are connected with the E2022 Signal switch. The output signal is distributed to three TV sets via the splitter Signal R60103. All the cabling is TRISET-113 E1015 coax. Easy switching between the signal sources is possible with the E2022 switch. Large HD television is placed next to stage. During the breaks between performances it shows playbacks of other recorded concerts, similarly to the two TVs located in other rooms, which also provide live transmissions of the performances.
Multimedia solution implemented in one of Krakow's clubs
Signal Switch E2022 enables the user to manually choose one of two sources of RF signal for their TV set. Thanks to high isolation between inputs (>50 dB) and good screening there is no problem with interference, even if the sources use the same channels. In the case above it eliminates the need of switching channels in the TV sets (the modulators work on the same channel).
Other typical application is the choice between terrestrial and cable TV. The switch allows to connect the two sources of signal without a risk of interference (it happens that DVB-T transmitters and cable TV networks use the same channels).
Ferguson Ariva HD player 110 A99391 can be the center of every modern home theater. The media player allows to play full HD movies, MKV H.264 files, HD recordings from cameras, high resolution digital images - to watch them on the screen of a connected HD TV set. In addition, it enables the user to play digital music files in the highest quality, also in Free Lossless Audio Codec format (.flac). With support for various data communication protocols, the device allows to play files downloaded from the Internet and home computer network, from USB and NAS hard drives, USB and flash drives (MS/MMC/SD/SDHC), digital video cameras, as well as from external DVD drives.
Other typical application is the choice between terrestrial and cable TV. The switch allows to connect the two sources of signal without a risk of interference (it happens that DVB-T transmitters and cable TV networks use the same channels).
Ferguson Ariva HD player 110 A99391 can be the center of every modern home theater. The media player allows to play full HD movies, MKV H.264 files, HD recordings from cameras, high resolution digital images - to watch them on the screen of a connected HD TV set. In addition, it enables the user to play digital music files in the highest quality, also in Free Lossless Audio Codec format (.flac). With support for various data communication protocols, the device allows to play files downloaded from the Internet and home computer network, from USB and NAS hard drives, USB and flash drives (MS/MMC/SD/SDHC), digital video cameras, as well as from external DVD drives.
The information coded in model numbers of ULTIMODE optical devices.
ULTIMODE is a family of professional devices for optical data transmission. It consists of devices that convert baseband analog CCTV signals (video converters) or Fast Ethernet and Giga Ethernet signals (media converters) to optical signals.Main features of the ULTIMODE family:
- cooperation with dedicated type of optical fiber (single-mode or multimode),
- transmission type (duplex or simplex),
- transmission speed (10/100 Mb/s or 1 Gb/s),
- wavelength (I - 850 nm, II - 1310 nm, III - 1550 nm),
- maximum transmission distance (0.55; 2; 20; 40 km).
The information coded in the model numbers:
M - media converter
40 - maximum transmission distance (in kilometers)
3 - wavelength/transmission type (3 - 1310 nm, 5 - 1550 nm, 7 - WDM transmission)
M - transmission speed (M- 10/100 Mb/s, G - 10/100/1000 Mb/s)
V - video converter
20 - maximum transmission distance (in kilometers)
4 - number of video inputs
DAO - transmission of additional signals (D - data, A - audio, O - alarm)
ULTIMODE media and video converters designed for cooperation with multimode fibers ensure transmission range up to 2 km, in the case of models for single-mode fibers the range is up to 40 km.
- RJ-45 8-pin modular plug J2008 - for termination of twisted-pair cables in computer networks,
- NETSET UTP cat 5e E1408 - highest-quality twisted pair cable designed for professional data transmission systems inside buildings (structural wiring, LANs).,
- Crimping tool HT-210N J9210 (for RJ45 connectors),
- Cable tester (RJ45, RJ-11) N7055 - testing cable continuity, detecting shorts circuits and incorrect connections. The device can be used for UTP/FTP cables terminated with RJ-45 connectors or for telephone cables terminated with RJ-11 phone plugs.
How to mount RJ45 modular plug on UTP cable?
Wireless CCTV systems - good practice guidelines (part 3).
In the previous issues we dealt with bandwidth and range concerns. Knowing these two parameters we can answer the question how many cameras can be connected to the single wireless link.In practice the number varies from 5 to15 (for 1.5 km link). This depends on the type of radio transmitting equipment, as well as on the type of cameras, that is, their resolution and compression used.
For example, the necessary bandwidth for IP camera with MJPEG compression may be as high as 6 Mb/s, but with MPEG-4 compression will be approximately 2 Mb/s. The bandwidth demand of a megapixel camera can reach up to 15 Mb/s, while a simple VGA camera with VHS image quality will need only 1 Mb/s. So it is impossible to unambiguously determine the bandwidth requirements - they depend on each particular case.
To avoid possible problems with the equipment, it is recommended to use thoroughly tested devices. There are well functioning monitoring systems based on such equipment, e.g. video surveillance system in Myslenice, Poland, with IP speed dome cameras ACTi K1215 perfectly cooperating with ULTIAIR access points, or the megapixel video surveillance system in Tvrdosin, Slovakia, based on ULTICAM cameras and ULTIAIR access points.
In conclusion - wireless solutions are certainly cheaper than wired ones, and the installation is much faster. However, it is important to realize the limitations and problems that can be encountered in the design, configuration and operation stages.
ULTIAIR is a family of professional Access Points, designed for efficient long-term outdoor operation. Integration of the transceiver and antenna into one weather-resistant housing of IP 66 class guarantees full protection against adverse weather conditions as well as corrosive environments (industry). ULTIAIR devices are perfect for creating effective systems of city monitoring. ULTIAIR family allows to build both the backbones of the systems and wireless access networks.
ULTIAIR devices are characterized by short delays and high throughput. They operate in unlicensed 5GHz band - no special permissions are needed. ULTIAIR devices can operate as base or client stations, they employ reliable Mikrotik system.
ULTIAIR devices are characterized by short delays and high throughput. They operate in unlicensed 5GHz band - no special permissions are needed. ULTIAIR devices can operate as base or client stations, they employ reliable Mikrotik system.
The owner of one of the houses on the estate of detached houses near Krakow commissioned the installation of a video monitoring system on the property. The cameras were to be installed on and in the garage (separate building), on the residential building, as well as inside the house.
As the basis for the monitoring system the installer employed the HIKVISION/ULTIMAX DS-7316HI-S digital video recorder (M74160).
This 16-channel DVR allows to record video with resolution of 4CIF at the speed of 2 fps. The number of frames and the resolution can be set separately for each camera. The highest resolution is only used to record images from the entrance to the premises, which enables identification of car license plates and faces of people. The images from other cameras record images of 2CIF resolution (704 x 288) at 12 fps.
This 16-channel DVR allows to record video with resolution of 4CIF at the speed of 2 fps. The number of frames and the resolution can be set separately for each camera. The highest resolution is only used to record images from the entrance to the premises, which enables identification of car license plates and faces of people. The images from other cameras record images of 2CIF resolution (704 x 288) at 12 fps.
The layout of CCTV monitoring system on the private premises
The outdoor cameras are VF-515 IR/B M11278 with varifocal lenses (4-9 mm) and built-in IR illuminators. They use very good 1/3" SONY Super HAD sensors with high resolution of 520 TVL. They provide images with optimum viewing quality and plenty of detail. The cameras are designed for outdoor operation, so that they can work in all weather conditions. In addition, they are characterized by excellent value for money.
In the garage, due to the fact that the room is unheated and poorly lighted, there is also color outdoor camera with IR illuminator - n-cam 075 (M11230).
At the gate and the gateway there are mounted V-CAM 412 M10744 cameras in vandal proof housings. The images from the cameras are recorded only in the case of motion detection in their fields of view.
At the gate and the gateway there are mounted V-CAM 412 M10744 cameras in vandal proof housings. The images from the cameras are recorded only in the case of motion detection in their fields of view.
Inside the house the installer has deployed Cam-665 Roto M11252 color cameras with integrated IR illuminators, put in dome ceiling housings.
Simple graphical menu of the DVR allows to quickly configure the recording schedule (continuous/event triggered).
Simple graphical menu of the DVR allows to quickly configure the recording schedule (continuous/event triggered).
The DVR is connected to the Internet. After logging in, the residents can watch their home while at work or on vacation. The access is possible via website, or using dedicated client software - iVMS.
In the future, alarm inputs and outputs of the DVR are to be connected to control systems of heating, air conditioning and other facilities, providing elements of a "smart home".
The owner is satisfied with the implemented system.
In the future, alarm inputs and outputs of the DVR are to be connected to control systems of heating, air conditioning and other facilities, providing elements of a "smart home".
The owner is satisfied with the implemented system.
An example of professional CCTV system on a parking lot:
- ACTi ACM-1231 K1511 - fixed cameras mounted on fences, for recording illegal entering of the parking lot. Using megapixel cameras with wide angle lenses the designer can significantly reduce the number of the cameras;
- ACTi CAM-6630 K1216 - speed dome camera/s situated in the central part of the parking lot, allowing the operator to focus on any event taking place on the whole lot;
- NUUO software - for recording and image analysis. With the ability to count objects and alert about the disappearance of an object it is the best surveillance management software for IP CCTV systems;
- ULTIAIR 419KC N2300 + ULTIAIR 319KC N2310 - devices for wireless data transmission.
Example IP CCTV system at a parking lot
"Tokyo Sky Tree" - Japan.
The tower being built in the capital is primarily dedicated to mobile solutions. Significantly in excess of Tokyo skyscrapers, the transmitters on the tower will allow good signal penetration in the downtown. It is also a part of the preparations towards digital broadcasting in Japan (in July 2011, the current analog broadcasting will be switched to digital transmission).The designers took care of adequate protection of the tower from earthquakes and probably did it properly - during the recent earthquake which took place in February this year, with a magnitude of 7 on the Richter scale, the only failure was bursting of a water pipe.
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Index of published issues
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Index of published issues
