1. Basic Introduction
Main functions of street clocks
I Master clock and slave clock and controlling system, movements, clock,clock hands,mechanism,core and GPS are the main parts of the whole system.
II Travel time function: clock hands travelling is powered by master clock system with closed loop control, synchronous function enables the clock clocks are consistent with GPS time.
III GPS timing:the computer/controlling system are connected with the satellite by GPS signal receiver,it keeps on comparing®ulating the clock time with an accuracy of 0.01 seconds/day as tolerance.
IV Chime function,vast music/chime/songs can be stored in a MP3 SD card,which can be easily obtained/applied from memory.
V Illumination: Illumination is normally achieved by Philips led lights,with a variety different colors and effects. There are two lighting methods (optional):
① Inner panel lighting;
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② The pointer and scale are all illuminated by LED light-emitting diodes, which have a long service life and can be continuously illuminated for more than 100,000 hours; the lighting effect is soft and beautiful, and the lighting The interval can be adjusted arbitrarily.
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VI. Automatic time-tracking: in case of a sudden power-cut that stops the whole clock,the GPS and master clock shall wake up and automatically trace the standard time and bring the clock hands to right places without manual operation when power regains even after 6 months.
VII. Anti-interference:the whole system,hardware and software are designed with strong anti-interference ability,even under strong magnetic field,they can still work properly.
VIII. Power saving:Energy saving technology minimizes consumption of power.
Ⅸ. Maintenance Free:Complete sealing of mechanism system makes it possible that neither maintenanceor lubrication is needed, it is thus also free from corrosion/moisture, anti-shock, low noise, wear resistance, all these enable the whole clock for a life of over 35 years.
Ⅹ. Fault self-diagnosis: the whole clock is designed with automatic fault-finding system to remind/alarm to you at the earliest possible time so that correction can be carried out directly without delay.
XI. Security: Powered by 12V DC,100% free of any worry of power shock.
2,Why choose us:
1)Strong technical team&skillful workers with over 25 years
● Since its establishment 25 years ago, it is a domestic technical clock and timing service enterprise focusing on the research and development, design, manufacture and service of products in the field of timing services and intelligent clocks.
● The research and development expenses invested by the company account for 17% of the sales revenue, so that the product quality is stable and reliable, and the product technology advantage has been leading the domestic industry for more than 1 year. With high-quality product quality and good after-sales service, it has won a good reputation from customers, and the market share has reached more than 20%
● With the strong tech support,we can customize clocks to satisfy different demands of different customers.
2)Comprehensive multiple Quality Control system
Strict quality control system is applied from the beginning of raw material purchase all the way throughout processing,manufacturing and individual section till general clock testing and loaded clock testing.
● Metal material purchased are all up to GB standard.Motors and electronic parts applied are all famous brands. Every components can be traced back to the source to ensure your safety during use.
● Testing are carried out and well recorded for each of the parts.
● Online live video inspection or testing can be arranged if you can not be at the site,or,our QC team will provide you with product debugging videos.
● Packing is only done when you are happy with the testing and commissioning ,the packaging case is made with seaworthy plywood or metal(when needed)
● Container loading in our factory is all done by ourselves,or if loading is carried out at seaport,delivery to the seaport is done by our own driver to ensure the safety or possible shocking or bumping of your clocks.
● Clear loading photos and videos are provided as if you are at the site
3)Best balance between quality and price
● We can not promise our price is the least or lowest in the market,since we have experienced customers coming to us requesting help to modify or to improve the clocks bought from elsewhere at very low price.
● With the idea that "Quality is the life of our factory" in mind,quality becomes the 1st priority of all our clocks.
● We might give up or miss some business opportunities,esp,when customer is seeking for cheapest prices,but sacrificing quality to meet price is never our way of business!
4)Transportation:
● Shipping advantages:
Location advantages helps us to give your timely delivery,we are only 100km from Shanghai----the largest port in China, with accumulated sufficient shipping resources, no matter where you are, we can ship to you very conveniently,either by sea, air, land or even rail.
● Packaging advantages:
Clocks are all wrapped with bubble film safely and tightly, packed into exporting seaworthy standard wood cases,and other smaller accessories or items are normally packaged in a separate small wood cases to prevent the parts from colliding with each other and causing surface scratches;
Each package is clearly marked with its name, item number, color, quantity, weight and packaging size,barcaroles can also be attached when specially needed.
● Transportation plan:
We use only container type truck for inland transportation to make sure its security and rain-proof and moisture-proof.
Either air or sea freight are available for choice.
3,FAQ:
Q: How to contact us?
We are available 24hour×7days by following:
either by Email,Wechat, Whatsapp,Telephone
▲ Danny(G.M):
Telephone: +86-513-83571573
Wechat & WhatsApp:+86 13809082448
Mobile: +8613809082448
E-mail: danny@jsntsmi.com
▲ Sunny(sales):
Telephone: +86-513-83571573
Wechat & WhatsApp:+86 18019634269
Mobile: +86 18019634269
E-mail: sm1@jsntsmi.com
▲ Cindy(sales):
Telephone: +86-513-83571573
Wechat & WhatsApp:+86 18115303215
Mobile: +86 18115303215
E-mail: sm2@jsntsmi.com
▲ Sofia(after sale):
Telephone: +86-513-83571573
Wechat & WhatsApp:+86 18932202448
Mobile: +86 18932202448
E-mail: sm3@jsntsmi.com
In many places on our website:
Visit our website, you can see the contact information of our sales team, such as the "Contact Us" button in the top navigation bar, or the "Contact Us" information in the left sidebar, you can also Click the "Online Services" button on the right side of the website or click on the Customer Service Specialist icon in the lower right corner of the page to access our online services.
▲ In addition, if you have browsed our products and decided to buy a certain product, there is a bright blue "Send Inquiry" button on the right side of the main picture, click to leave a message online and leave your contact information, such as electronic Email address, WeChat, Whatsapp, etc. Our sales staff will reply you within 24 hours.
Q: What are the factors that determine the price of a street clock?
▲ The choice of the clock face
▲ Number of clock faces: For example, one-faces and four-faces clocks, the cost of the clock face is about four times.
▲ Clock face diameter: The size of the clock face directly determines the amount of consumables for the clock face and the amount of consumables such as pointers, scales, and lighting arrangements.
▲ The material of the clock face: aluminum plate, PC plate, laminated glass, marble and other materials have large price differences, and the materials of pointers and scales are also very different.
▲ The function of the big clock: the more functions, the higher the cost.
▲ Basic function: travel time.
▲ Frequently selected additional functions: chime, illumination.
▲ General additional functions: GPS time calibration, fault self-diagnosis, online detection of travel time, etc.
Q: What are the most commonly used illumination methods for street clocks?
▲ Translucent illumination of the clock plate: the entire clock plate is bright. The clock plate is generally made of a milky white light-transmitting PC board, and a fluorescent lamp is used behind the clock plate to let the light shine through.
▲ Pointer scale illumination: the pointer scale is bright. The pointer scale is made into a light box structure. Internally, LED light sources are generally used.
When the diameter of the clock dial is less than 2 meters, it is recommended that customers use the clock dial translucent luminous, and when the diameter is greater than 2.5 meters, it is recommended to use the pointer scale luminous. It can be flexibly mastered between 2 meters and 2.5 meters.
▲ Spotlight lighting: by lighting around the big clock, the entire disk surface is illuminated.
Q: What are the materials of the clock face of the street clock?
▲ PC board: polycarbonate board, a plastic material similar to plexiglass, transparent, but much higher in strength than plexiglass, adding a layer of PC board between two layers of inorganic glass is bulletproof glass. And it has good aging resistance and can be used outdoors. Commonly used thickness is 3 to 5 mm. It is a common material for large clocks with light-transmitting illumination. Generally, the light-transmitting lighting clocks often use hollow PC boards---sunshine boards.
▲ Aluminum-plastic plate---also called plastic-aluminum plate. A layer of aluminum foil is applied on one side of the plastic plate, which is called single-sided aluminum-plastic plate. If both sides are covered with aluminum foil, it is called double-sided aluminum-plastic plate, and the double-sided plate is not easily deformed. Decorative material that can be used outdoors. The thickness is basically about 3 mm.
▲ Aluminum veneer: The aluminum veneer generally uses an aluminum alloy plate with a thickness of 2.5mm-5mm, and the thickness is determined according to the diameter of the clock face.
▲ Marble clock face: As a clock face, marble has solemn and generous advantages, but its disadvantages are difficult to construct.
▲ Special materials: According to customer requirements and different architectural styles, special materials can be selected to make the clock face.
Technical data and basic configuration:
▲ Basic parameters
|
Master clock ambient temperature |
-40°C ~ +65°C |
|
Sub-clock ambient temperature |
-45°C ~ +85°C |
|
Master clock power supply |
AC200V ~ 240V, 50/60Hz |
|
Relative humidity |
30% to 95% (no condensation) |
|
Timing accuracy |
±0.1 seconds / day (no accumulation error) |
|
Interface mode |
RS-232 |
|
The number of interfaces |
2 |
|
Power supply |
AC220V±10% 50HZ |
|
Master clock power consumption |
≤ 25W |
|
Drive mode |
constant current chopping plus sub-sub |
|
The life of the machine |
30 years |
▲ Main Component
|
No |
Item |
Spec. |
Unit |
Note |
|
1 |
Master clock controlcabinet |
420*420*20(mm) |
1 pc |
Clock dedicated cabinets |
|
2 |
driving system |
SM-2000 |
1 pc |
Precision control system, drive chip for industrial grade I |
|
3 |
Time travel control system |
SM-2000 |
1 pc |
The sub clock travel time standard control ,the main MCU chip as the America ATMEGA Inc. |
|
4 |
Lighting control system |
SM-2000 |
1 pc |
Automatically control the opening and closing time of the lighting,the main MCU chip as the America ATMEGA Inc. |
|
5 |
Lighting source |
Fluorescent tube |
1 pc |
Automatic lighting control opening and closing time |
|
6 |
SM-2000 |
1 pc |
Automatic opening and closing time of time. |
|
|
7 |
Time indicating mechanism amplifier |
100w |
1 pc |
Time indicate sound amplifier. |
|
8 |
Loudspeaker |
25w |
4 pc |
Outdoor time indicate amplifier. |
|
9 |
Automatic tracking system |
SM-2000 |
1 pc |
After the power failure memory unit,automatic memory clock data, after the call automatically recover tothe standards of the time, the maincomponent is made by National Semiconductor Corporation Ns. |
|
10 |
Power supply system |
SM-2000 |
1 pc |
Provide a variety of power system operation, the power management chip for America TI Co. |
|
11 |
GPS satellite receiver |
SR-87 |
1 pc |
GPS satellite reception. |
|
12 |
GPS satellitesignal processing system |
SM-GPS6800 |
1 pc |
Time standard signal d/a conversion. |
|
13 |
Clock face skeleton and accessdoor, maintenance support bracket, frame |
1 pc |
All bracket are made of 304 stainless steel, electrostatic spraying treatment. |
|
|
14 |
Clock needles and scale |
2 needles/ 3 needles |
1 set |
The clock needle is made of 304 stainless steel plate, CNC wire cutting, electrostatic spraying treatment, and the scale is UV printing. |
|
15 |
Intelligent mechanism |
25ML |
1 pc |
Patented No. : ZL2010 20530498. X Clock movement of mechanical transmission part of the copper gear, a driving part into the motor adopts step. |
|
16 |
Power supply, communication line |
Clock special variety running cable. |
▲ Detailed Configuration for Main System
|
No |
Equipment Name |
Spec. |
Brand |
Origin |
|
Clock walking system |
||||
|
1 |
Single chip |
ATMEGA160 |
ATMEL |
US |
|
2 |
Memory Unit |
DS1302Z |
DALLAS |
US |
|
3 |
Communication circuit |
MAX487 |
MAX |
US |
|
4 |
Switching power supply |
NES-150-15 |
MW |
Kunshan |
|
GPS System |
||||
|
1 |
GPS chip |
SR-87 |
HOLUX |
Taiwan |
|
2 |
The decoding unit |
GPS6800 |
SM |
Yantai |
|
Fault Diagnostic system |
||||
|
1 |
Single chip |
ATMEGA64 |
ATMEL |
US |
|
2 |
Communication circuit |
MAX487 |
MAX |
US |
|
Automatic correction system |
||||
|
1 |
Single chip |
ATMEGA64 |
ATMEL |
US |
|
2 |
Power Chip |
LM2575S-5.0 |
LM |
US |
|
Movement |
||||
|
1 |
The turbine worm |
25ML |
Yuntong |
Yunnan |
|
2 |
Stepper motor |
57BYG-203 |
Baoma |
Changzhou |
|
Time control system |
||||
|
1 |
SSR |
SLA-05VDC |
Pine le |
Zhejiang |
|
2 |
Amplifier |
200W |
Lingsheng |
Wuxi |
|
3 |
Loudspeaker |
25W/16 |
Zhenmei |
Tianjin |
|
4 |
Single chip |
ATMEGA162 |
ATMEL |
US |
|
5 |
Voice processing chip |
27C4001 |
ATMEL |
US |
|
Lighting control system |
||||
|
1 |
Single chip |
ATMEGA64 |
ATMEL |
US |
|
2 |
Lighting source |
200W/24V |
Ward |
Yantai |
|
3 |
SSR |
SSR-20 |
Pine le |
Zhejiang |
|
4 |
LED light tube |
Φ9mm |
Liangli |
Shenzhen |
|
Noted:The above configuration will be changed according to the function , design and so on of the clock. |
||||
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