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Hanhai Opto-electronic is a major scientific research achievement transformation institution of the Hefei Institute of Physical Science, Chinese Academy of Sciences.
Greeting the Mid-Autumn Festival: Moonlight Shines on Original Aspirations, Guarding Reunions Together
As the bright full moon climbs into the night sky, its gentle glow bathes streets and courtyards. As the fragrance of osmanthus drifts with the wind, families gather around the table — the 2025 Mid-Autumn Festival meets us warmly, brimming with the warmth of reunion. On this traditional festival embodying "longing" and "completeness," Guoke Hanhai not only admires the moon and celebrates the festival with every friend but also uses technology as a brush to write the original aspiration of "guarding reunions" under the moonlight.

Reunion Wishes Hidden in Tradition
The Mid-Autumn moon has been a symbol of "reunion" in Chinese hearts since ancient times. From the homesickness in "Raising my head, I watch the bright moon; bowing my head, I think of my hometown" to the blessing in "May we all be blessed with longevity. Though miles apart, we can still share the beauty of the moon together," this full moon has witnessed countless family gatherings over thousands of years and cherished people's simple yearning for peace and completeness.
Today, even as times change, the core meaning of Mid-Autumn remains unchanged. It is the wanderer traveling thousands of miles to return to their parents' side, with steaming mooncakes and home-cooked dishes on the table. It is those on duty connecting with families far away via video to share the same moon. It is the lights of cities and villages reflecting with moonlight, depicting a warm picture of "national peace and people's safety." Behind this "completeness" lies the guardianship of "safety" — whether the stable operation of production and daily life or the reliable supply of energy, they are indispensable cornerstones of the reunion moment.

On this festival of family reunion, there is a group of "invisible guardians" always on duty: Guoke Hanhai's laser monitoring equipment stands firm in key scenarios such as chemical parks, LNG storage and transportation stations, and oil and gas pipelines, safeguarding the festival's peace through precise monitoring.
During Mid-Autumn, although some chemical enterprises reduce production, the storage and supervision of hazardous chemicals cannot be relaxed. The fixed laser telemetry devices deployed in storage tank areas, like "sentinels under the moonlight," continuously monitor the concentration of various flammable, explosive, toxic, and harmful gases 24/7. Even trace leaks at the ppm level can be accurately detected, triggering early warnings immediately — allowing residents around the park to admire the moon at ease without being disturbed by risks.
During the Mid-Autumn holiday, the demand for civilian gas rises slightly. The stable operation of LNG refueling stations and receiving stations is directly related to the daily life of thousands of families. Guoke Hanhai's vehicle-mounted laser inspection system shuttles through the stations day and night. Laser beams scan underground gas transmission trenches, storage tank areas, and pressure regulation facilities in real time, fully covering traditional monitoring blind spots and ensuring "zero leakage" throughout the natural gas storage and transportation process.
Urban underground gas pipelines are like the "blood vessels" of the city, requiring stable "blood supply" even more during Mid-Autumn. Guoke Hanhai's passive laser monitoring system works silently underground without on-site power supply, conducting real-time monitoring of the pipelines. Once abnormal concentrations are detected, it synchronously locates the leak points — keeping the city's "blood vessels" healthy and making the lights of reunion brighter.
These devices have no "holidays" or "reunion dinners," but with the rigor and reliability of technology, they build an "invisible defense line" for the reunion of thousands of families.

Saluting Every Perseverance and Companion
The reunion of Mid-Autumn is never "taken for granted" — it is guarded by silent dedication. They are firefighters and police officers standing firm on their posts, workers ensuring energy supply, and engineers from Guoke Hanhai's R&D team who stand by to respond to technical needs. They give up gathering with their families to bring peace and completeness to more people.
Here, Guoke Hanhai salutes every perseverance and thanks all customers and partners who support us. It is your trust that gives us the opportunity to contribute to safety through technology. It is your companionship that makes us move forward steadily and farther on the road of "serving the country through science and technology."
This Mid-Autumn, may the moonlight shine on all reunions. May under the guardianship of technology, peace prevails everywhere. Guoke Hanhai sincerely wishes every friend: Happy Mid-Autumn Festival, a harmonious family, and all wishes come true as the moon is full!
TEL:400-055-1239 (9:00~17:00)
MAIL:lisghanhai@gkhhlaser.com
ADDR:302 Floor, Building 5, No. 18, Kechuang 13th Street, Beijing Economic and Technological Development Zone
