We deployed two units (model: BA-FLS-NX5) of FLS in the southwest offshore area of Dandong, where is located the north of China, Liaoning Province in 2022.

2022年，我司在辽宁丹东西南海域投放了两套漂浮式激光雷达测风系统（设备型号: BA-FLS-NX5)。

After a full winter, in February 2023, we carried out an on-site inspection as planned and found that both the appearance and structure of the FLS were normal, except for a small amount of snow on the buoy.

在经历一个完整的冬天后，2023年2月，我司按计划对浮标进行巡检，发现浮标上除有少量积雪外，设备外观及结构一切正常。

Our technicians have extracted and analyzed the raw data from the devices during the winter period from 28 November, 2022 to 10 February , 2023, showing all the buoy data is normal. The relevant data analysis is as follows:

技术人员对2022年11月28日至2023年2月10日冬季期间的设备原始数据进行提取与分析，显示浮标各项数据均正常，相关数据分析如下：

Environment 环境
During the period, the lowest temperature in the sea area of the project site reached - 21 ℃, the highest temperature was only 8 ℃and the daily average temperature was around - 9 ℃, making the climate relatively cold.
数据分析区间内，项目地海域最低气温达到-21度，最高气温仅8度，日平均气温约为-9度，气候较为寒冷。

System voltage 系统电压
As the project site is in a freezing offshore area and does not have much sun light, in addition to solar panels and 2 small wind turbines, we have also applied 2 remote controlled fuel cells. During the winter, the voltage of the two units were both above 24V for more than 90% of the time, indicating a very robust power supply system.
鉴于项目地处于冬季寒冷地区并且光照不充足，除配有太阳能电池板、小型风力发电机外，我们为设备配置了可远程控制大容量燃料电池。冬季期间，两台设备电压非常稳定，在90%以上的时间均高于24V，为系统运行提供了充分的供能保障。

风速(Wind speed)
The measured wind speed has a good consistency (the measurement height is slightly different) as a short distance between these 2 units. It shows that the average wind speed of the two projects are in a high correlation.
由于两个项目距离相对较近，测得风速一致性较好（测量高度略有不同），通过对比可以看出两个项目的平均风速具有高度相关性。

Data availability 数据完整率
During the winter months, the data availability of these 2 projects for all heights were greater than 98.4%, with a maximum of 100% and an average data availability of 99.7%, far exceeding the customer's requirements.
两个项目冬季期间各高度数据完整率均大于98.4%，最高为100%，平均数据完整率为99.7%，远超客户要求。

After the challenge of extreme cold, ice floes, rain and snow, all subsystems of the FLS were normal, and the data availability is far exceeding the requirements. It shows that our FLS model BA-FLS-NX5 is suitable for the cold sea conditions in northern China and we gained very valuable experience of the application practice in cold sea.

在经历严寒、浮冰、雨雪的考验后，设备各子系统均正常，数据完整率远超标准要求。这充分说明憬知梦蓝BA-FLS-NX5漂浮式激光雷达测风系统适应中国北方严寒海域工况，也为国产浮标雷达在寒冷海域的应用实践提供了宝贵经验。

Experience gained in freezing offshore area 漂浮式激光雷达测风系统通过严寒考验

BA-FLS-NX5 Begins Stage 2 Type Validation

Two new floating LiDAR systems deployed!两套崭新的漂浮式激光雷达测风系统已完成部署!