Tower Clock Introduce
Tower Clock （alias Building Clock ，And Tower Clock difference is usually installed in a corner of the building, non-independent of the clock tower, and there is no essential difference) general movement by the Tower Clock, master clock controller, pointer, clock tray and scale constitute the basic system, all use imported 51 / AVR MCU control, full-featured, easy operation, convenient maintenance, reliable, accurate travel time master clock, slave clock and master clock of the asynchronous difference small, Tower Clock maximum size up to 8 meters. Movement is mechanical, control electronics, are mechanical and electrical integration products.
Basic functions: travel time (time indicator) function, power failure stop clock functions (sub-minute power outage stop within 24 hours to go, after the call, without manual adjustment, the control system can automatically adjust the picture clock synchronization). Drive system with improved over-voltage over-current short circuit protection, ensure driver is highly reliable. Clock automatic synchronization with picture: the actual location of the pointer clock selector and select sub-clock can adjust the speed of normal travel time is about six times.
It may also be added according to user needs the following features:
(1) master clock automatic error correction function (GPS timing): master clock can receive GPS (Global Positioning System) time signal, the master clock time for regular (once per second under normal circumstances) automatic calibration, the master clock of the accumulated difference is never greater than ± 0.01 seconds.
(2) timekeeping function: at any time be adjusted by the user, and an optional chime and voice broadcast, generally each speaker power 200W. Can play a variety of music, and voice chime bell, dual-channel 32-bit, 44.1KHZ sampling, CD quality digital audio.
(3) luminous function; There are three ways, one clock pin and the scale matrix with a high brightness LED lighting, common white, red and green light-emitting diode; the second is to use translucent panels, lights from the inside out to play within the light illumination; third lighting with spotlights outside to play. Users can set the time light is turned off.
Movement by the high torque motor, with continuous operation mode (interval of 1 second), low temperatures in the winter to ensure movement is not on the cold, to avoid the stop clock failure.
Monitoring functions of the computer Note: Due to the existing micro-controller (that is, micro-controller or said master clock controller) has been able to completely control the normal operation of the Tower Clock and common additional features, is not recommended to use a computer monitor to manage Tower Clock, avoid waste of resources and higher maintenance costs.
Performance indicators:
※ 50HZ220V ± 10V AC power supply
※ travel time accuracy: ≤ ± 0.3 deterioration
seconds (using GPS timing ± 0.01 seconds)
※ timekeeping precision: the master clock time difference ≤ ± 0.1 seconds
※ Picture asynchronous clock time difference: ≤ 5 seconds
※ master clock ambient temperature: -0 ~ 40 ℃; Relative Humidity: 10% to 75%
※ Tower Clock Ambient temperature: -35 ~ 60 ℃; Relative humidity: 5% to 100%
These indicators meet national industry standards: "Public quartz clock QB / T 1987-2005" under the Class A (excellent products, the international advanced level) indicators.
Tower clock / clock construction to explain commonly used terms
GPS: Global Positioning System. With a very accurate time signals (satellite time signal), it can automatically calibrate the Tower Clock, the clock will always be guaranteed accurate.
LED: light emitting diodes. High luminous efficiency, long life 10 years (actual life depends on the specific environment, the larger temperature difference between the four seasons and humid rainy areas 3 to 5 years), often as a pointer to scale Tower Clock luminous light.
Acrylic plate: the glass, the chemical name is poly (methyl methacrylate), is a major thermoplastic early development, with good transparency, chemical stability and weather resistance, easy to stain, easy processing , beautiful appearance, in the construction industry has a wide range of applications. Cast acrylic products generally can be divided into panels, extruded sheet and molding compounds.
Aluminum composite panel: also known as plastic sheet, wrap in plastic single-sided layer of aluminum foil, known as single-sided aluminum panels, if deposited with aluminum foil on both sides said the two-sided aluminum panels, double panel deformation. Can be used for outdoor decoration materials. Thickness of 3 mm or so basic.
Color plates: the end is the ABS is formed by screen scraping paint drying ordinary surface; metal surface is to import platinum, silver extrusion, is a carving board, can be widely used in signs, light boxes, billboards, Gifts Medals, commercial space indicating system, interior decoration and advertising industry. Color plate is the most significant features: 1, impact resistance; 2, heat resistance; 3, low temperature resistance; 4, ease of processing and cutting.
The most common luminous way tower clock:
Bell disk-type luminous transmittance: the bell plate is bright. Bell plate is generally used white light of the PC board, fluorescent in minutes played after-hours, the light revealed.
Scale luminous pointer: pointer scale is bright, the general use of LED light source, you can make the box can also be embedded within the scale pointer.
Spotlights projected luminous: in the clock set four weeks or more points from the external use of spotlights lighting.