On highways, fog masses are often referred to as "mobile killers" - they come and go without a trace, causing a sudden drop in visibility and often catching drivers off guard, leading to serious accidents such as rear-end collisions and chain collisions. Traditional monitoring methods are difficult to capture its transient characteristics. However, the emergence of the fog cluster early warning monitoring system is like installing a pair of "X-ray eyes" on expressways. Through real-time perception, intelligent analysis, and multi-channel early warning, it can control the fog cluster risk in its infancy, transforming driving safety from "passive response" to "active defense".

The formation of fog clusters is closely related to environmental factors such as temperature and humidity, wind speed, and the concentration of air particulate matter. When the ground radiates to cool down at night or when moist air condenses upon contact with cold, the water vapor in local areas will quickly saturate, forming fog masses with extremely low visibility. The WX-NJD10 fog early warning monitoring system integrates highly sensitive sensors to continuously capture the minute changes of these elements: when the air humidity suddenly increases, the temperature drops rapidly, and the wind speed approaches a calm state, the system will immediately mark the area as a "potential area with high incidence of fog". This real-time perception of environmental signals has transformed the fog from a "sudden attack" into a "predictable risk", buying precious time for subsequent early warnings.

The ultimate goal of the fog warning is to enable drivers and management departments to be informed of the risks in a timely manner. The system ensures comprehensive coverage of early warning information through a multi-channel combination of "variable message signs + mobile APP+ traffic radio + SMS push notifications". When the system determines that a fog cluster is about to occur on a certain section of the road, the variable message signs along the route will immediately display a warning saying "Fog cluster ahead, speed limit 40km/h". Meanwhile, the driver's mobile phone APP will pop up a voice reminder, and the navigation software will also automatically plan a detour route. The traffic management department sent dispatch instructions to the surrounding on-duty traffic police through the SMS platform, making advance arrangements to guide vehicles to divert or temporarily close lanes. This "multi-pronged" early warning approach has significantly shortened the time from "discovery" to "response" for the risk of fog clusters.