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No. 28/2012 (Sept. 3, 2012)
The world's largest test of "smart cars".
The U.S. Department of Transportation, in cooperation with leading car manufacturers (Ford, General Motors, Honda, Hyundai, Mercedes-Benz, Nissan, Toyota, Volkswagen) and the University of Michigan, has launched tests of "V2V (Vehicle-to-Vehicle)" safety technology. The budget for the tests has been set at $22 million. They will include checking the communication systems between vehicles.So far, in Ann Arbor, Michigan, about 500 trucks and buses have been equipped with this technology, and they can communicate with each other (V2V) and with elements of the city's infrastructure (Vehicle-to-Infrastructure - V2I). By October, this number will increase to 2800 vehicles.
"Vehicle-to-vehicle communication has the potential to be the ultimate game-changer in roadway safety - but we need to understand how to apply the technology in an effective way in the real world," said David Strickland, NHTSA (National Highway Traffic Safety Administration).
V2V wireless communication can be a major milestone
in the development of active safety of vehicles
in the development of active safety of vehicles
In 2011, more than 32,000 people died in the streets of America because of accidents. V2X technology should improve both the safety and efficiency of roads.
After checking the connectivity and communication in real environment, drivers may expect the second phase - development of on-board computer systems, which, after receiving information from nearby cars on their position and speed, will be able, for example, to reduce the speed of the vehicle to a safe limit.
All the vehicles will also exchange information with road infrastructure, a new system of road signs capable of automatic reduction of the speed. Connections with city computers will allow drivers to select the least congested routes.
The range of devices installed in cars and based on advanced electronics and wireless transmission is growing very quickly. Nissan offers vehicles equipped with radars, which in the case of a collision risk can automatically apply the brakes. An interesting system is under development in Volvo. Their wireless system will allow the first car to lead a car convoy. The other drivers will be able to pass the control over their cars to the system and relax while driving e.g. on a highway.
After checking the connectivity and communication in real environment, drivers may expect the second phase - development of on-board computer systems, which, after receiving information from nearby cars on their position and speed, will be able, for example, to reduce the speed of the vehicle to a safe limit.
All the vehicles will also exchange information with road infrastructure, a new system of road signs capable of automatic reduction of the speed. Connections with city computers will allow drivers to select the least congested routes.
The range of devices installed in cars and based on advanced electronics and wireless transmission is growing very quickly. Nissan offers vehicles equipped with radars, which in the case of a collision risk can automatically apply the brakes. An interesting system is under development in Volvo. Their wireless system will allow the first car to lead a car convoy. The other drivers will be able to pass the control over their cars to the system and relax while driving e.g. on a highway.
"Engagingly about Antennas" - 11th edition.
The current edition will continue until September 30.The rules of the competition and the pictures sent so far
We invite everyone to participate!
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Bird radio Sylwia Frankowicz | Somewhere in Poland Aleksander Pietrzak | Television of forest people Robert Skibiszewski |
Professional SIGNAL DVR.
SIGNAL DL-8216 M78216 is an ideal CCTV network DVR for professional video surveillance systems based on modern analog security cameras. The DVR offers recording of 4CIF (704 x 576) images at 25 fps in each of its sixteen channels, for a very competitive price.A distinguishing feature of the DVR is the possibility local browsing of the archives simultaneously from all the 16 channels. It is easy to find the interesting moment/period as the video recordings are presented on timelines. They can also be searched by alarm events. There is a possibility to manage the video files and still images stored on the hard drive, both in automatic and manual mode.
Multiple levels of security, assignment of individual access rights, stable operation in the network - are the hallmarks of the product, as well.
Multiple levels of security, assignment of individual access rights, stable operation in the network - are the hallmarks of the product, as well.
An example of a CCTV system based on SIGNAL DL-8216,
using long-range transmission over twisted pair cable and optical fiber
using long-range transmission over twisted pair cable and optical fiber
Some features of the SIGNAL DL-8216 M78216 DVR:
- VGA (up to 1280x1024) output or HDMI output (selectable) and BNC video out
- Possibility to connect up to 3 SATA HDDs, each up to 2TB (6 TB in total)
- Local playback of recordings from up to 16 channels at the same time
- External AC/DC adapter (12 VDC, incl.)
- Easy integration with other Signal DVRs thanks to advanced network application - CMS
How to easily convert DVB-T signals into PAL channels?
Many hotels, motels, boarding houses etc. are equipped with televisions not capable of receiving DVB-T MPEG-4 broadcasts. After analog switch-off the owners of the businesses have to exchange the TV sets (which is expensive), buy external DVB-T receivers - STBs (which may be troublesome - additional devices and remote controls), or solve the problem elegantly and economically by application of a headend converting signals within the antenna system.The latter alternative can be easily implemented with the use of a simple DVB-T / UHF PAL headend Mixpol DVB-08T R951680. One headend allows for reception of 8 digital channels on any PAL TV sets. The headend can also convert HD channels. It is possible to install more than one headend to receive a greater number of channels.
8-channel DVB-T / UHF PAL headend Mixpol DVB-08T R951680
An example application of the DVB-08T headend has been shown in the diagram below. DVB-T signals received by the terrestrial TV antenna are split into 3 paths. Two of the paths provide the signals to the R951680 headends. The WWK-951 R89861 multiband amplifier in the third path amplifies the original signals that are then combined with the analog channels provided by the headends and amplified by the broadband amplifier R82303. The original DVB-T signals and 16 PAL channels can be fed to an RF distribution network.
DVB-T headend distributing original DVB-T multiplexes and 16 PAL channels
converted from selected DVB-T broadcasts
converted from selected DVB-T broadcasts
Vandal-proof IP67 camera with IR illuminator.
The new Sunell SN-FXP59/30UIR M10775 camera ensures high image quality, outstanding weather resistance and ease of installation.The Sunell SN-FXP59/30UIR M10775 camera uses 1/3" Sony ExView HAD CCD II image sensor and Sony Effio-E DSP (CXD4140GG). It provides high resolution video (650 TVL in color) with natural colors and high S/N ratio.
A special design - the physical separation of the camera module and the housing - ensures easy installation and high IP protection level, IP67. Focal length and focus adjustments are carried out by using the knobs located under the dome.
The vandal-proof day/night camera Sunell SN-FXP59/30UIR M10775 :
Sony Effio-E, 0.03 lx, D-WDR, 650 TVL, 2.8-10 mm, IR up to 20 m, OSD
Sony Effio-E, 0.03 lx, D-WDR, 650 TVL, 2.8-10 mm, IR up to 20 m, OSD
Connections between server rooms or groups of IP cameras.
A common problem in IP networks is the need to build high-speed links. Such requirements are imposed, for example, when connecting two server rooms, groups of CCTV DVRs or IP cameras, etc. While the connections of individual computers or IP cameras to network switches can use Fast Ethernet links (100 Mbps), the mentioned earlier cases require the application of Gigabit Ethernet technology.A modern solution is the use of a fiber optic link. It is quite easy due to the fact that advanced switches are usually equipped with slots for SFP modules. To implement a fiber optic link, the installer needs only a suitable SFP module, indoor or outdoor fiber optic cable and some accessories. The fibers should be terminated with patch cords (arranged in a splice tray placed in a fiber optic box) that are then connected to the switches. There is no need for a fusion splicer - the installer can terminate each fiber using a pigtail and the ULTIMODE L5550 mechanical splice.
The configuration presented below can be used for links up to 20 km.
Connection of two server rooms with ULTIMODE fiber optic cable
How to view images from Sunell cameras on Android devices?
Shenzhen Sunell Technology Corporation has released InView software - network video surveillance application for Android devices, allowing management of their IP security cameras: K1620, K1630, K1650, K1660, K1670, K1680, K1690, K1691, K1695.Users of the popular Android smartphones and tablets can connect directly to the cameras from any place in the world with sufficient network capacity and view the video surveillance images, as well as configure and control the functions of their IP CCTV systems.
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The device configuration window in the InView application
The main features of the application:
- OSD language;
- manual and automatic camera search;
- configuration of a network device - IP address, subnet mask, gateway, DNS server;
- camera info - the hardware and firmware version;
- preset of video parameters - resolution, bitrate, frame rate;
- audio settings;
- PTZ settings;
- preset of privacy masks;
- date and time;
- configuration of alarm inputs and outputs;
- disk overflow alarm;
- motion detection settings;
- configuration of email notifications;
- configuration of local recording;
- control of user accounts;
- selection of video displaying mode in the (1920x1080 lub 640x360),
- real-time audio surveillance;
- manual screenshots;
- rebooting, restoring default settings.
The latest version of the free Inview software is available at Google Play.
Wi-Fi via ... power outlet.
Powerline Ethernet adapters TP-LINK TL-WPA271KIT N3361 allow network connection through existing power line. The pair or a set of the powerline adapters is an ideal solution in every case where it is impossible to install Ethernet cables or the environment between some points is not suitable for a wireless medium. One of the two units is equipped with wireless access point (AP) providing wireless connectivity for laptops, tablets, smartphones etc.The user needs as many units as the number of the AC power outlets that are to be simultaneously used as the nodes of the computer network.
An application of the TL-WPA271KIT N3361 devices
The installation of the TL-WPA271KIT is very simple. The "first" one should be connected to the router (with the included network patch cable) and plugged into the nearest power outlet. The second/next adapter is to be connected via its patch cable to the computer in the second/next room and plugged into the nearby power outlet. The maximum length of the electrical wires between the outermost points of the network cannot exceed 300 m. All outlets should use the same branch (phase) of the power network.
DIPOL Learning Platform - interactive courses for installers
We start the English language version from Wi-Fi basics
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Wi-Fi basics |
New products offered by DIPOL
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Worth reading:
TV system in a hotel complex. The owner of a hotel complex with four buildings faced the problem of distribution of television signals from MMH-300 headend to all the buildings.
The best solution was to connect the buildings with single-mode fiber optic cable and use optical transmitters and receivers from Terra. The buildings are spaced about 300 meters apart, so there was no problem with running ducts with universal fiber optic cable ULTIMODE UNI-4SM L7644...
The best solution was to connect the buildings with single-mode fiber optic cable and use optical transmitters and receivers from Terra. The buildings are spaced about 300 meters apart, so there was no problem with running ducts with universal fiber optic cable ULTIMODE UNI-4SM L7644...
Optical distribution of TV in the hotel complex
What kind of camera is best to promote towns on the internet? The Municipal Council in Sandomierz, Poland, tests another camera showing the beauty of the town. This time it is a PTZ device operating in auto-patrol mode. The camera has been installed on the council building and provides video stream with resolution of 1280 x 720 pixels. Thanks to compliance with ONVIF standards, the stream can be easily archived on NUUO NVRs or other servers supporting that specification. The images from the camera, with the use of RTSP protocol and streaming server, have been placed on the town's website, together with the player...
Video stream from Sunnell 1.3 MP camera ( K1660 )
showing a beautiful panorama of the Royal Town of Sandomierz
showing a beautiful panorama of the Royal Town of Sandomierz
WiFi network based on N Lite TP-LINK devices. Wireless devices that support n standard have become the most popular category of home networking equipment. Very popular are N Lite TP-Link devices supporting wireless transmission speeds up to 150 Mbps (the maximum transmission speed of devices with a single path/antenna).
Below there is a diagram of a simple home network where the Internet is provided via ADSL line and distributed through wired and wireless network in the home, using TL-WR740N N3252 Access Point/ Router...
Below there is a diagram of a simple home network where the Internet is provided via ADSL line and distributed through wired and wireless network in the home, using TL-WR740N N3252 Access Point/ Router...
A home network based on TP-LINK devices
Fiber optic cables
