Môj košík je prázdny



DIPOL Weekly Review – TV and SAT TV, CCTV, WLAN
No. 25/2019 (Sept. 2, 2019)
Clean energy source. Scientists Ian Gates and Jacky Wang from the University of Calgary have developed an economical method for large-scale extraction of H2 hydrogen from oil sands and oil fields. H2 hydrogen can be used to generate electricity as well as to power vehicles. This element is considered an efficient, non-polluting fuel that may replace gasoline and diesel. Hydrogen-powered vehicles, including cars, buses and trains, have been developed for many years. The high costs of the current method of extracting hydrogen from oil lowered the profitability of this technique of powering vehicles. The situation may change radically in the near future.
(Source: www.techxplore.com)
Petroleum (bituminous) sands are the world's largest oil deposits. The second biggest deposits, just after Saudi Arabia, are in Canada (in the Alberta province), the third in Venezuela (on the Orinoco River). These sands are a dark mixture of sticky bitumen, sand, water and clay with a tar consistency. Due to a high density, it is not possible to use the extraction technology developed for crude oil. Researchers have found that injecting oxygen into the bed raises the temperature and releases H2, which can be separated from other gases using specialized filters. The latest technology for extracting hydrogen from bituminous sands does not release greenhouse gases, leaving carbon dioxide and methane in the ground.
It is estimated that the production of H2 hydrogen in the new technology will cost from 10 to 50 cents per kilogram, which is a fraction of the cost of producing gasoline (about 2 USD per kg).
Surveillance video from IP cameras in antenna systems. The injection of the video information from IP CCTV cameras into an RF distribution network (a private or shared antenna system) requires application of intermediate devices. - digital HDMI to DVB-T modulators (capable of transmission up to Full HD 1080p@60 Hz). The HDMI signal carrying the video information from one or a number of IP cameras is available at the monitor output of the IP NVR in the IP CCTV system. The signal is converted by the modulator into DVB-T or DVB-C channel. Typical applications require the use of a single-channel modulator, or sometimes multi-channel modulators (up to 4 channels).
With the introduction of the new IP to DVB transmodulator Terra MI520P R81609, the need for an IP NVR has been eliminated. The transmodulator converts IP stream provided in the UDP/RTP protocol (unicast/multicast, SPTS and MPTS), and RTSP/ONVIF streaming from IP cameras, to a DVB format (DVB-T COFDM/DVB-C/J.83B/ISDB-T). The device receives IP stream with bit rate up to 80 Mbps and converts it to two configurable DVB-T COFDM, DVB-C/J.83B/ISDB-T multiplexes, with a maximum bit rate depending on the selected standard. The administrator of the system selects the required channels from the IP stream and creates any two DVB-T/DVB-C/J.83B/ISDB-T multiplexes (MUXes).
Video from cameras in a DTT antenna system - TERRA MI520 DVB modulator
A video presenting the Terra MI520P R81609 modulator along with the installation procedure
Professional VHF and UHF DVB-T Antenna Set (H/V): DIPOL 28/5-12/21-60Steel Satellite Dish: TRIAX 80 TD (dark gray)Universal QUATRO LNB: Inverto HOME Pro 0.3dBSwitch TP-Link TL-SF1008D (8 ports)IP (80Mbps) to DVB Transmodulator: Terra MI520P (2xMux, DVB-T/C/J.83B/ISDB-T)Subscriber Terminal Outlet: Signal R-TV-SAT5/8 Multiswitch: Terra MR-508 (active terrestrial path, class A)
Video from the IP security cameras is provided to the N29918 switch and then the total IP stream enters the MI520 R81609 modulator. The output DVB-T signal along with DVB-T broadcasts received by the A2810 antenna is distributed in the antenna system through the R70608 multiswitch. The video from each camera is available in the system as a separate TV channel.
Advanced tester of network cables. The FORSCHER FS8114 N7050 device is used to test cabling continuity, measure cable lengths and distances to faults. It can detect connection faults in UTP/STP network cables, telephone and coaxial cables. In addition, the FS8114 tester is equipped with an advanced locator of wire pairs. The operation is based on a unique technique that combines the generation of both analog and digital tones allowing to significantly increase the accuracy in locating cable bundles. High sensitivity allows for detecting wires hidden in walls, floors or ceilings in a depth up to 15 cm. The FS8114 tester includes the function of measuring voltages on individual conductors of the twisted-pair cable (passive POE).
Key features:
  • Menu languages: English, Polish
  • Cable types tested: UTP/STP cat. 5, 5e, 6, 7, telephone, coaxial
  • Cable length measurement
  • Measurement frequency: 130 kHz
  • Measurement method: capacitive
  • Maximum length: 2000 m
  • Minimum length: 1 m
  • "Find port" – quick search of the port in a network device
  • Searching and testing cables in PoE mode (passive PoE)
  • Pair integrity test
  • Measuring voltages on individual conductors (POE)
  • Transmitter voltage protection: 60 VAC / 48 VDC
  • Auto-OFF function
  • Battery discharge indicator
  • Record of measurement results in the device memory
  • Built-in visual fault locator (VFL) for optical cables
  • Power: 9 V battery (included)
Cable Tester, Detector and Identifier: FORSCHER FS8114
Cable tester, detector and identifier FORSCHER FS8114 N7050
New Signal Fire fusion splicers. DIPOL offers two new models of fusion splicers from the Signal Fire series. After almost two years of providing the AI-8 model, the manufacturer decided to slightly refresh the range of products and replace this popular and reliable machine with a slightly changed version, AI-8C. In addition, it launched the unique AI-9 model combining the functions of a fusion splicer, optical power meter, and VFL visual fault locator.
Fusion Splicer: Signal Fire AI-8C (with toolbox and tools)
Fusion Splicer: Signal Fire AI-9 (with toolbox and tools)
Signal Fire AI-8C L5870
Signal Fire AI-9 L5875
Compared to AI-8, both models have a slightly changed design. The charging and power supply system has been redesigned. The manufacturer showed a lot of ingenuity here, locating its main part outside the splicing machine, as the included recharge/USB adapter. This approach guarantees faster and easier service in the event of problems with recharging the battery – it is enough to replace the adapter without having to disassemble the splicer. Despite the fact that previous models did not suffer from frequent failures of this system, such caution of the manufacturer shows its care for continuous improvement of the product.
Another improvement is the increase of the operation time on one battery charge cycle. The battery remained unchanged (7800 mAh capacity - one of the largest in the market), but the declared number of splices that can be made increased by 20% – from 200 to 240. The minimum time of one splicing operation in AI-9 L5875 is only 5 seconds, in the case of the AI-8C L5870 model it is 6 seconds.
The new software of the splicers allows the owner to enable the so-called "intelligent lock". In this mode, the owner has the possibility to limit the use of a splicer - for example when renting it. The following restrictions can be made:
  • the splicer is locked by default; it is necessary to unlock using a pre-defined phone,
  • the splicer is unlocked to perform a certain number of splices - after that it will remain blocked,
  • the splicer is unlocked for a specified time (user defines a range of dates); after that, the splicer will remain blocked.
Fusion Splicer: Signal Fire AI-9 (with toolbox and tools)
Connectors of the built-in optical power meter and visual fault locator
in the Signal Fire AI-9 L5875 fusion splicer
A unique feature of the AI-9 L5875 model is the built-in the measuring and testing capability. The built-in optical power meter and visual fault locator (VFL) allow, among others, for quick diagnosis of the optical path immediately after splicing a fiber.
Double verification of access rights to recordings. The monitoring system operator most often has access to the NVR through an account with limited permissions. Usually, it includes the right to view only the current images from cameras, but not to view the archives, which would require to log on to an account with higher privileges.
To occasionally increase the permissions, Hikvision has introduced a double access verification function. If the operator needs to access the recordings, additional credentials (specially created for this purpose) have to be used. With the credentials, he or she gains temporary access to view recordings without a need for switching the account.
The double verification function works both with local and remote access (via a web browser or iVMS-4200 application). The permissions allow for viewing and archiving recordings. This feature is currently available only in Hikvision NVRs of I series, but will also be added to other Hikvision NVRs.
Second generation Hikvision IP video intercom system. DIPOL has introduced second generation IP Hikvision video intercom system, characterized by aesthetic appearance, high functionality, and wide scalability. The door station has a modular structure which means that its elements can be selected depending on the requirements of the customer (up to 8 modules). It always includes the DS-KD8003-IME1/EU G73652 main module which enables powering of other modules and communication with them. The main module is equipped with a fisheye camera with a resolution of 2 MP, two relays for control of entrance gates, one physical call button with a place for a name tag. The expansion modules include DS-KD-E EM 125 kHz G73660 card reader, DS-KD-M 13.56 MHz Mifare G73662 card reader, DS-KD-IN G73664 indicator, DS-KD-KK 6-button name tag G73666 module,
DS-KD-KP numeric G73668 keypad, and display or blank module.
The indoor stations for control of the system include the 7" touch screen monitors, G74001 (TFT) and G74003 (G74001). The preview of image, control of relay outputs, conversation with the caller at the door station can also be performed with the use of Hik-Connect mobile application. The door station and monitors can be powered with 12 VDC source or with the use of PoE technology (802.3 af).

Presentation of second generation Hikvision IP video intercom system
New products offered by DIPOL
4K IP NVR: Hikvision DS-7608NXI-I2/8P/4S (8ch, 80Mbps, 2xSATA, 8xPoE, 4xAcuSense, Alarm IN/OUT, VGA, HDMI, BNC, H.265)
4K IP NVR Hikvision DS-7608NXI-I2/8P/4S K22094 is a modern IP network video recorder capable of monitoring, recording and playing back images from 8 IP cameras of megapixel resolutions, up to 12 MP. Its built-in 8-port PoE switch ensures both video transmission and power supply of the connected cameras. The independent VGA (up to 1080p) and HDMI (up to 4K) monitor outputs can provide images with different layouts. Each monitor can display the video from any camera, in any screen division. Two SATA ports enable the user to install 2 hard drives, each with capacity up to 8 TB.
DVB-S/S2 (16x8PSK/QPSK) to 8xDVB-T (COFDM) Transmodulator: TERRA TDX-4168 (FTA)
Terra TDX-4168 Transmodulator R81625 is used for reception of DVB-S/S2 (8PSK/QPSK) signals, selection of desired channels and retransmission of them in COFDM format in chosen RF channels in VHF/UHF frequency range. The device allows the user to receive and manage a range of free DVB-S/S2 (8PSK/QPSK) satellite channels and convert them to DVB-T (COFDM) channels. One TDX-4168 R81625 panel can receive all channels from 16 satellite transponders and convert them into two independent groups with four neighboring DVB-T multiplexes (each multiplex with maximum throughput of 31.66 Mbps. In practice, each multiplex can carry 6 SD channels or 2-3 HD channels.
4K IP NVR: Hikvision DS-7732NXI-I4/4S (32ch, 256Mbps, 4xSATA, 4xAcuSense, VGA, HDMI, BNC, H.265/H.264)
4K IP NVR Hikvision DS-7732NXI-I4/4S K22356 is a modern IP network video recorder capable of monitoring, recording and playing back images from 32 IP cameras of megapixel resolutions, up to 12 MP. Its independent HDMI (up to 4K) and VGA (up to 1080p) monitor outputs can provide images with different layouts. Each monitor can display the video from any camera, in any screen division. Four SATA ports enable the user to install 4 hard drives, each with capacity up to 8 TB.
Worth reading
The easiest way to add a device for viewing surveillance video in a mobile application. A Hikvision device can be added to Hik-Connect or iVMS-4500 app by manual entering its IP address or by scanning its QR code. The QR code can be scanned directly from the housing of the device, or it can be generated by it (in the case of a camera or DVR/NVR). In the latter case, it is visible in the configuration menu. Adding a device in this way simplifies the installation by eliminating the need to manually enter the IP address. >>>more
If devices are already added to the mobile application, you can easily share them with another person. All you need to do, is to go to the Generate QR code tab and select the devices you want to share. The newly generated QR code can be scanned by another smartphone.
Engagingly about Antennas - 18th DIPOL's Summer Holiday Contest 2019
18th DIPOL Holiday Photo Contest
Osoby so záujmom o týždenný informátor Informátora prosíme o zadanie e-mailu elektronickou poštou: