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- Specifications
Recently, local outbreaks have appeared in multiple regions, with some sporadic imported cases in other areas. As of 18:00 on April 20, 2022, there were 151 medium-risk regions and 8 high-risk regions nationwide, constantly reminding us not to slacken in epidemic prevention, but to combine past experience with scientific anti-epidemic efforts.
As an R&D-oriented high-tech enterprise, ALEAN acted early during the early 2020 outbreak, supporting epidemic prevention at Wuhan Leishenshan Hospital, fangcang hospitals, some Shenzhen communities, and hotel isolation monitoring, using technology to support the fight against the epidemic. The ALEAN NB-IoT smart door contact system was applied to monitor isolated personnel in residential communities, hotels and other places. Now, in some communities in key regions, this remote isolation-monitoring system of ALEAN has gone online again to actively help communities solve personnel isolation-monitoring problems.

▲ ALEAN smart door contact applied to monitor isolated personnel at a Shenzhen hotel

In actual operation, this system is based on the NB-IoT network, powered by dry batteries, and requires no wiring. By installing the NB-IoT smart door contact, it monitors the door's open/closed status. When someone opens the door, the door contact triggers an alarm and the epidemic-prevention isolation center platform immediately receives the alarm message. The alarm message can be pushed to community grid staff via the WeChat alarm official account, achieving precise monitoring of the door's status.

This more efficient and intelligent door-contact management system can effectively improve the management efficiency of isolated personnel in communities and hotels; it enables 24-hour seamless control, reducing the manpower burden; managed centrally by the community, the cost is lower; and after the isolation period ends it can be removed at any time, being simple and flexible.
Further Reading
Besides the door contact, our smart emergency alarm system can also play an important role, especially in places such as airports and hospitals where there are large crowds and complex personnel, requiring precise control. Installing such a stable and reliable emergency alarm system can effectively handle various on-site emergencies.
The system mainly consists of front-end emergency help alarm buttons, an alarm control panel, audible and visual alarms and linkage devices. The emergency alarm buttons can be installed at appropriate locations according to on-site zone requirements; an audible and visual alarm is installed where each emergency button is placed, and the alarm control panel is installed in the control room or duty center. When someone presses an emergency alarm button, the alarm is triggered and the on-site audible and visual siren is driven in real time to alert people on site. Meanwhile, the alarm signal is uploaded through the zone address module to the alarm control panel and the integrated alarm management system at the duty center, alerting duty personnel; the alarm area is shown on the LCD Chinese keypad display or on the electronic map of the alarm management software, and duty personnel can then take measures according to the situation. In practice, this system offers fast alarming, simple operation and timely response.

Whether in early 2020 or now, in the fight against the epidemic ALEAN has always acted actively, providing solid and reliable support for every front through innovative security technology and contributing to the safe operation of society!
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