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DIPOL Weekly Review - TV and SAT TV, CCTV, WLAN
No. 18/2020 (May 4, 2020)
Will drones help fight the coronavirus? In cooperation with Draganfly, an American drone-manufacturing company, the Westport Police Department in Connecticut (a state close to New York that has seen the highest number of confirmed coronavirus cases in the US thus far) has been testing what it calls "pandemic drones", designed to monitor public safety. Draganfly has created a technology that relies on computer vision systems and thermal cameras to screen people for respiratory and other symptoms that may indicate an active COVID-19 infection. The drones are equipped with specialized sensors and computer vision systems able to identify body temperature, heart and respiratory rate, and even detect sneezing and coughing individuals in a crowd. The system is supposed to have a range of c. 58 m, which means the drones will not have to fly up too close and analyze people individually.
The Westport Police Department reassured that the equipment does not employ face recognition technology and will not be used to monitor human behavior in private homes. The drones are designed to detect only specific parameters and behaviors in public space, so as to enable officials to identify hotspots and ensure the safety of those who provide a first aid response. The technology not only boosts the safety of paramedics, doctors, and uniformed services involved in handling the COVID-19 crisis, but also protects society at large. An important advantage of the drones is that they enable frequent shifts between closely monitored open-space urban locations.
A 2-wire video intercom system from Hikvision. Video/intercom system often have to be upgraded to new versions that offer expanded functions. Such modernization may involve the need to change existing cables and replace them with e.g. twisted pair cables in IP systems. This is where the 2-Wire Hikvision video intercom comes in. The device has the same functionalities as a second-generation Hikvision IP video intercom. The structure of the system relies on a G74823 DS-KAD706 distributor, to which monitors (e.g. G74018 DS-KH6320-WTE2) and the main door station module (G73644 DS-KD8003-IME2) are connected via a 2-wire bus. The latter allows to power supported devices and establish communication. Once the distributor is connected to the LAN network, each device (monitor, door station) is assigned an individual IP address in the network and can be configured via the iVMS-4200(v3) app. Besides its basic functions, i.e. video calls, door opening, and entrance gate control, the system also works via the Hik-Connect smartphone app, which allows to forward calls to the smartphone when the resident is not at home or to open the gate or door remotely.

Wireless Dual-band Gigabit Router: TP-Link Archer C6 AC1200 (4x10/100/1000 Mbps)7DS-KD-ACW1 Hikvision 1-module surface-mounted housingElectric Door Strike: Bira ES1-001 (12V AC/DC, adjustable)SMPS AC/DC Adapter ZI-2000 12V/2A (for CCTV cameras)Switched Mode Power Supply: Mean Well HDR-60-24 (24VDC/60W/2.5A)Two-wire Video/Audio/Power Distributor: Hikvision DS-KAD706 7Door Station Main Unit: Hikvision DS-KD8003-IME2 (2-Wire, 2nd-generation)
An example of a 2-Wire Hikvision system
Quick CCTV camera access sharing. Hik-Connect users can use a QR code to authorize other people (max. 64) to access their Hikvision monitoring devices. This means you can share a camera or DVR/NVR added to our Hik-Connect account/guest account really quickly, which is useful e.g. when you want our family members to enjoy the same access rights. An important advantage is also that the authorization can be canceled at any time.
The generated QR code and Sharing Details screen
The steps of the sharing procedure:
  • Generating QR code on the smartphone of the owner of the camera (the code is valid for 60 minutes)
  • Scanning the code with a smartphone that should share the access to the camera
  • Setting access privileges:
    • Live view
    • Playback
    • Alarm notifications
    • Two-way audio
    • PTZ control
HDMI over optical fiber with a USB converter. Because of the distance and the need for e.g. NVR control, many large CCTV systems require a HDMI to fiber converter with a USB extender. DIPOL offers an opportunity to implement such a scenario using a set of devices: a HDMI to IP converter and a media converter.
HDMI to IP Converter: Signal HD (with USB extender)HDMI to IP Converter: Signal HD (with USB extender)Ethernet Media Converter M-023G (1Gb/s, for two multimode fibers up to 2km) Ethernet Media Converter M-023G (1Gb/s, for two multimode fibers up to 2km)
Using media converters with HDMI converters
The H3613 HDMI to IP converter with USB interface sends the signals (HDMI and USB) via IP network to the L10025 media converter that changes the transmission medium to optical fiber. In a remote location, the transmission medium is changed to electrical signals received and decoded by the H3613 receiver/converter.
Camera signals in SMATV systems. If you want to feed an AHD or IP camera signal into the SMATV system, you can fall back on the cheapest currently available HDMI to DVB-T encoder/modulator (Full HD 1080P/60Hz), i.e. R86111. The device is used in CCTV systems integrated with SMATV networks and can be employed to transmit DVR/NVR signals to multiple TV receivers over coaxial cables. The R86111 modulator encodes and modulates the Full HD (1920x1080-60p) signal provided to its HDMI input to RF signal in accordance with the DVB-T standard (COFDM), and thus offers an attractive alternative to installations based on HDMI splitters and cables.
HDMI Signal in DVB-T Installation - Signal Modulator
Watch the latest video about the installation of a SIGNAL modulator
Steel Satellite Dish: TRIAX 80 TD (dark gray)FM Antenna: Dipol 1RUZ PM B (omnidirectional H+V)DAB / DVB-T/T2 Antenna: DIPOL 7/5-12UHF TV DVB-T/T2 Antenna: DIPOL 44/21-60 Tri DigitOutdoor Antenna Amplifier TERRA MA080L (FM-VHFIII-UHF)HD-TVI TURBO HD 4.0 Camera: Hikvision DS-2CE56D8T-IT3E (ceiling, 1080p, 2.8mm, 0.005 lx, PoC, IR up to 40m)HDMI to DVB-T Encoder/Modulator (Full HD 1080p/60Hz, for CCTV systems) Subscriber Terminal Outlet: Signal R-TV-SATMultiswitch Signal MRP-508 (5-in/8-out, passive terrestrial TV path)Inductive FM/TV 2-Way Splitter RI-2/1 FUniversal QUATRO LNB: Inverto HOME Pro 0.3dB
In the example above, a Full HD signal from the HDMI port of the DVR has been modulated by the R86111 Signal modulator in accordance with the DVB-T standard. The antenna set includes three antennas: A2670, A0710 and A0221. Of course, other configurations of FM, UHF, and VHF antennas are also possible. The outdoor antenna amplifier (TERRA R82022) has three band inputs: FM (88-108 MHz), VHFIII (174-230 MHz), and UHF (470-790 MHz)., Each path has a separate gain adjustment option, and the UHF path features a LTE 800 filter. The MRP-508 R68508 multiswitch provides 12 VDC supply voltage option designed to power the MA080L R82022 amplifier. The RI-2/1 F E2094 combiner passes the DC voltage to the amplifier.
How to properly pull out optical fibers from the tube? When installing fiber optic cabling, it is important to use appropriate tools. There is no room for half measures; using tools other than those explicitly recommended for the purpose may increase the risk of damage to optical fibers, which may make it much more difficult to build an optical path.
Of the many actions involved in the installation of fiber-optic cables, some of the most difficult ones include cutting out windows in tubes. The windows are shaved in order to pull out the desired fibers from the tube without disturbing the rest, while maintaining the continuity of the tube. Operations of this type are often performed in fiber-optic splice closures located on poles carrying multi-fiber trunk cables, where, from a given pole, one or two fibers have to be dropped (as a subscriber link or a branch of the network).

How to use the MSAT-5 L5925 tool
(source: YouTube)
Ripley's MSAT-5 L5925 Mid-Span Access Tool allows easy access to optical fibers in loose buffer tubes with diameters from 1.9 mm to 3.0 mm, without any risk of damage. It can be safely used for cutting windows in DRAKA universal cables with up to 16 fibers (the tube of the cable with 24 fibers has a larger diameter).
New products offered by DIPOL
In translation...
Spare cable storage rack SZ-3 E88818 allows the safe storage of up to 80-100 m of spare cables with an appropriate bending radius. The rack can be used directly on square and round poles and comes fitted with a panel dedicated for mounting any MDU and FDB joint boxes (it has openings that match most currently available models).

UPS CyberPower OR600ELCDRM1U (600VA/360W, rack-mount)
UPS CyberPower OR600ELCDRM1U N9702 provides home, office and industrial users with back-up power and protects electronic devices against overvoltage, voltage surge, undervoltage and other power supply problems. The UPS is built in line-interactive architecture with a simulated sine wave at the output. It has an automatic voltage regulation (AVR) function to ensure a stable output voltage. The UPS has four filtered and battery-backed sockets.

In translation...
Compact IP Camera: Hikvision DS-2CD2086G2-IU K03189 belongs to the second generation of cameras using the AcuSense technology, notable for an even greater ability to filter out false alarms. The device is dedicated for use in CCTV systems based on IP DVRs/NVRs. The camera is fitted with an 8 MP 1/2" CMOS sensor and an IR illuminator with a range up to 30 m to ensure proper visibility in low-light conditions. It has a fixed 2.8 mm lens with a viewing angle of 102°, as well as a built-in microphone for sound recording.
Worth reading
Remote PoE switch power supply. The ULTIPOWER 352SFP N299707 PoE switch is equipped with a PD (Powered Device) function, which allows it to be powered from another PoE switch. The feature is extremely useful especially when the switch (or cameras, if they are mounted in the same spot, e.g. on a pole) is located in places linked only by a twisted pair cable....>>>more
A PoE switch with the PD function
Cameras streaming directly to YouTube
 
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