[Photo] 6 + 2 digital broadcast television Quanzhou car system description – bro
Quanzhou TV Zhou Xian Lin Xiwen
Original television broadcast trucks Quanzhou 5-Channel analog component broadcast vehicles, in use since 96 years, serious body and aging equipment, broke down several times on the road, the system unstable and the image quality dropped severely, to the program recording broadcast a serious threat caused, especially with my radio program development and cooperation with other fraternal Taiwan increased, the old broadcast vehicles can not satisfy the program requirements, the purchase of the new digital broadcast vehicles has become a consensus in Taiwan .
Car as a mobile TV studio, the equipment configuration of a platform reflected the technical and economic strength. As a city of Taiwan, according to their actual situation, taken into account in the design of equipment selection, system stability, functional flexibility, reasonable layout, ease of maintenance operations and other factors.
Our television programs, according to the characteristics of Quanzhou, Quanzhou City's road conditions, specifically the broadcast a few basic elements of vehicle design, that is imported chassis, tag through the body, without side pull box, size 8 News Road, in which two wireless telecommunications Road, system requirements and other broadcast to car or EFP system cascade.
One body system Taking into account the status of the road in Quanzhou City, and my radio program shows the basic to the main routine, 8-Channel has been designed to meet daily needs, and because of digital technology to carry out the two cars or more cars cascade and the car an easy switch, so tag through design has been able to meet our needs, when you need to use more than 10 telecommunications Road, when I can, and Taiwan Yuan You Road 4 News broadcast trucks and cars.
Body we chose the Swedish company's VOLVOFH12 VOLVO converted chassis, tag through van structure, vehicle length of 11.7m, the total height of 3.96m, width 2.5m, no pull-hand side. Load capacity of 20 tons, the largest traction 380 horsepower, top speed of 100km / h, exhaust emission standards to Europe , chassis for dual rear axle, two axle brake, spring front axle, rear axle air suspension, a hydraulic power steering system, ABS system.
The layout of our car's actual situation according to our station for the full and effective use of space, abandoned the traditional arrangement, the work area divided into two areas, a district director, a technical area. Because the car is basically for the two mixing audio, so we also included in the audio area of technology in the region, so that the layout gives a spacious feeling, effective expansion of the space (vehicle layout shown in Figure 1 shown). The last side is the cable car plate storage and air-conditioning warehouse, warehouse same cable tray with external interface board. Skirt around the body of the car is equipped with isolation transformers, batteries, power supply, hydraulic support legs and the supporting leg controller also provides a tripod and other equipment storage space.
Figure 1 Director district and vertical display means, using six video wall cabinets wide arc, arc curvature and TV wall table match with each other, is currently the largest span of the table arc, so that District operations director staff visually more comfortable, to staff a good working environment. Area can provide the director, deputy director, slow motion operator, subtitles and other station staff to compile and program-related relative concentration of broadcast personnel to facilitate the exchange.
Technology area is divided into audio and video areas, technology areas and the director in the middle part with sliding doors, sliding doors and are equipped with observation windows on the wall. As usual tuning basically two main areas so the audio and video areas can be easily combined technical personnel exchanges. At the same time, due to staffing reasons, audio and video area area together, in the recording part of the program when some jobs can take into account each other, reduce the pressure on technical staff.
Car cable tray is the last department store warehouse and air-conditioning, the end part of the upper and lower body, upper level air host position and the lower cable tray positions, while external interface board and 220V input interface is also installed emergency Within this position. DC motor drive cable tray can be used manually. Shelf by the steel pipe welding, surface spray, DC motor drives, each with a clutch cable and plates, while the cable tray can turn over a single rotation can. Cable tray use polycarbonate plastic injection molding disk, with strength, toughness and good, light and elegant appearance.
Nissan Daikin air conditioning with split air-conditioning, the way the wind with overhead shower dip, the wind caused a wind, the wind tunnel will be sent to all corners of the wind, because this brand has a unique air conditioning condensation water institutions, thus avoiding condensation and condensate overflow, in order to avoid equipment damage. Return air duct installed in the equipment cabinet rear, to facilitate effective the hot rack of equipment and work areas of the cold wind pulls the same time, the formation of a more intense exchange of hot and cold cycle, so the car's equipment and personnel to achieve the required operating temperature. Area and the corresponding technical area director design thermostats, the indoor temperature can be adjusted independently.
Vehicle distribution system to work as a broadcast vehicle is very important part of reliable performance is critical. Therefore, the car distribution system consists of isolation transformers, power supply, UPS, power distribution control panel (switchboard), chargers, lighting systems and other components. Distribution system designed to meet the requirements of GB9378-88, internal power supplies and external power connections watertight joints installed in accordance with waterproof 6. Which UPS uses external battery, line-type work, can for the main channel, the car computer equipment, professional hard disk digital video recorders, digital slow-motion machine to use 30 minutes.
Distribution control panel: distribution switchboard is an integrated control system, with separate AC and DC control mode, the power strip is equipped with AC, DC voltmeter, ammeter, frequency meter and other observations form the first, to clear and timely supply situation observed separate ways. Each switch on the switchboard operator the Chinese have a clear mark, easy to understand easy to operate.
DC Lighting: DC lighting at the two, one is emergency lighting, lighting one is maintenance. Trains in the installation of site lighting on both sides, the outside light is insufficient as a small area of the external lighting; cabin installation of DC District Emergency lighting and switches with time delay, there is no access to AC power for lighting inside; under Wai Box lights installed in a DC for the night around me with the next operation.
AC lighting: lighting at the two exchanges, one is fluorescent lighting, one is spot lighting. Wide-area lighting is fluorescent lighting, as access to electricity and electricity after the vehicle lighting; spotlights lighting are partial lighting, spot light angle can be adjusted.
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