Size and material requirements: Both sides
2-meter diameter size; architectural professional construction drawings; load less than 1.4 tons
2. The clock dials are made of brass, the frames are made of stainless steel, and the face materials are aluminum plates with electrostatic powder coating; the clock hands are laser-cut from stainless steel and electrostatically powder coated; all cables are made to national standards.
3. Movement lifespan ≥ 50 years, complete clock lifespan ≥ 30 years.
4. Tower clock power consumption ≤ 1200W.
5. Operating Environment Temperature: -30℃ to +60℃; Relative Humidity 30% to 95%.
6. Performance Requirements:
7. Microcomputer-controlled timing with fully automatic double-needle operation ensures timing accuracy with no cumulative error; timing accuracy: 10^-6 to 10^-5, and 10^-3 to 10^-2; sub-clock timing accuracy: ±0.01 to ±0.02 seconds per day, chime accuracy: the difference between the master and sub-clock is within 0.02 seconds.
8. GPS satellite time synchronization ensures that the tower clock operates in sync with standard time, achieving zero accumulated error; face clock synchronization function: when a face clock is out of sync with others, the control system automatically detects and adjusts it to synchronize.
9. Automatic Tracking Function: In the event of power outages, the master clock automatically retains memory. Upon power restoration, the slave clocks can automatically track back to the standard time.
10. Lighting
Utilizing LED lighting with a lifespan of over 100,000 hours, featuring internal illumination.
11. Process Requirements
12. Printed circuit boards must be coated with a three-in-one protective layer, meeting requirements for moisture resistance, fire prevention, and corrosion resistance.
13. Printed Circuit Boards - Utilizing wave soldering or lead-free reflow soldering technology.
14. All clock system components are machine welded, utilizing either wave soldering or reflow soldering techniques. High current plug-in parts are coated with silver or gold, while interface boards and other plug-in components are treated with gold plating technology.
15. Optional Features: Including music advertisement playback, networked clock information collection, video collection, real-time monitoring, real-time maintenance, customizable mobile app functions, etc. See the unique features of each professional clock manufacturer.
16. The bell tower stainless steel bracket is 5.13 meters tall, 5 meters long, and 2.3 meters wide; the specific installation process will be further developed by the manufacturer. The appearance is fluorocarbon baked paint; consider the crane and scaffolding needed for installation independently.
Key Technical Performance Indicators
1. Timing: Microcomputer controlled, fully automatic dual needle operation. The mother and child clock system employs closed-loop control to maintain synchronized operation and consistency with Beijing Time.
2. GPS Satellite Synchronization: Utilizing computer centers and Beidou satellite signal receiving equipment, the extracted standard time is compared and calibrated with the master clock time to ensure the tower clock operates in synchronization with the standard time, achieving zero cumulative error.
3. Time Announcement: Features high-fidelity multimedia time announcements. Options include: ① The Great Bell of London melody with chimes (three different tones) ② Dongfanghong melody with chimes (four different tones) ③ Dongfanghong melody with voice announcements ④ Chimes (eight different tones) ⑤ China, China, the Red Sun Never Sets melody (one option) ⑥ Enter the New Era melody ⑦ Stop broadcasting; a computer is required for multimedia time announcements. All seven methods can be selected at will.
4 Lighting: Interior lighting with daylight tubes; the lighting effect is soft and aesthetically pleasing, with adjustable lighting zones.
5 Automatic Tracking Feature: In the event of power outages, the master clock will automatically retain the memory for 10 years. Upon power restoration, the slave clock can automatically track to the standard time without the need for manual adjustment.
6. Advertising Play Function (Music Library): Utilizes multimedia technology to play music or advertising phrases according to user requests, offering beautiful sound quality and an excellent way to establish a company's image. Examples include, "Today is National Day, Shenzhen Middle School wishes everyone a happy holiday and all the best," etc. This feature can only be implemented with a computer.
7 Face Clock Synchronization Function: If a face clock is out of sync with the others, the control system automatically detects and adjusts it to synchronize.
8 Through the multiple, multi-location, and real-time monitoring functions of the Clock Network: At any location within the national (global) range, the tower clock can be monitored in the following ways: ① Monitor and control the operation of master and slave clocks. ② Modify and set the chime melody. ③ Real-time processing of signals from the slave clock system, with real-time control over the lighting and chime of the slave clocks. ④ Display the master clock time and synchronize adjustments to it. ⑤ View or reset the lighting zones. ⑥ Display help information for computer operations at any time.
Monitoring terminals can include: ①Smartphone ②Laptop ③Netbook ④Tablet PC ⑤PC Computer.
Communication methods may include: ①Wireless WIFI network ②Wired network ③Wireless sensor network ④G5 ⑤422, etc.
.9 Through the multi-location, real-time maintenance functions of the Clock Network: At any location within the national (global) range, tower clocks can be maintained in various ways, with diverse, rich, intuitive, convenient, and quick maintenance content:
Maintenance methods include: ①Email ②Language Explanation ③Live Video Demonstration ④Interactive Q&A ⑤SMS.
Maintenance content may include: ①Network time setting, lighting setup, master clock adjustment, and slave clock adjustment; ②Software download, remote modification and upgrade; ③Equipment status inquiry; ④Equipment status statistics; ⑤Equipment status prediction; ⑥Detailed equipment status; ⑦Equipment settings; ⑧Fault/repair notification; ⑨Fault/repair records; ⑩Maintenance staff scheduling response, maintenance process response.
10 Mobile App: Customize a unique mobile app software for engineering needs.
