As a key higher education institution in the Inner Mongolia Autonomous Region, Inner Mongolia Agricultural University hosts numerous national-level examinations, including:
CET-4 / CET-6 (College English Tests)
Postgraduate Entrance Examinations
Civil Service Examinations
Other major standardized assessments
For these exams, precise and unified timekeeping is critical. Even a one-second deviation may raise disputes, affect test fairness, or impact the validity of the results. However, traditional wall clock systems found across campuses often suffer from cumulative drift, inconsistent calibration, and independent running clocks—causing visible time differences between examination rooms.
To ensure a modern, unified, and standard-compliant exam environment, the university sought a professional timing system upgrade capable of millisecond accuracy and centralized management.
| Challenge | Requirement |
|---|---|
| Time Accuracy | All 400 exam rooms must display identical official Beijing time with millisecond precision. |
| Environmental Adaptability | Clocks must operate reliably in extreme northern climate conditions with significant winter temperature differences. |
| Reliability & MTBF | Continuous operation required during national exams with no risk of system failure. |
| Centralized Administration | Eliminate manual adjustments and ensure automatic calibration across the campus. |
Solution
SyncTimeHub delivered a synchronized master-slave clock architecture, deploying a master clock for unified time broadcasting and 400 synchronized classroom clocks across the examination sites.
DH54ST Large Hall Synchronized Clock – 114 units
Installed in large lecture rooms and centralized exam halls
DH44ST Standard Classroom Synchronized Clock – 286 units
Installed in standard test rooms and teaching buildings
All clocks automatically sync to the master clock
No accumulated error; always aligned with official Beijing Standard Time
Supports automatic calibration upon startup and scheduled daily calibration
Operating temperature range: -20°C to +65°C
Fully suitable for Inner Mongolia’s extreme winter environment
Guaranteed stable operation even during early-morning winter exams
MTBF ≥ 100,000 hours (over 11 years of continuous stable operation)
Ensures full reliability during critical national testing periods
Aluminum alloy frame + reinforced engineering shell
Clear display visibility across large rooms
<5W ultra-low power consumption per unit
| Outcome | Impact |
|---|---|
| Guaranteed Examination Fairness | Eliminates disputes caused by inconsistent clock timings and reinforces authority of national exams. |
| Operational Efficiency Improvement | Centralized clock management reduces manual labor, time costs, and maintenance work. |
| Examination Modernization Benchmark | Creates a model standardized exam environment aligned with national testing standards. |
| Long-Term Investment Value | High reliability and low maintenance deliver strong ROI and long lifecycle benefits. |
SHUTAI specializes in professional satellite-based timing systems and precision synchronization solutions. With industry-leading Beidou/GNSS time service expertise, we provide high-stability time-frequency products for:
Schools & universities
Hospitals and medical institutions
Enterprises and manufacturing
Government and public administration
Communication, finance, and transportation sectors
Our products are widely adopted nationwide and recognized for their reliability, precision, and professional engineering quality.
Back to List
Customer Hotline：
