告警灯 meaning in English

alarm indicator wbl
alerting lamp
guard lamp
stand by lamp
warning lamp

Indicator warning light
转向告警灯
When used as an emergency tripod , it is very easy to set up by applying same method as using an umbrella
它可以在夜间施工区被用作告警灯，或在汽车事故区域进行警示。
A tool to analyze the object based on color character is designed . the threshold value for image recognition can be decided by many experiment and the results statistic . the results of many experiment in defferent conditions , the image recognition accuracy rate has reached 100 %
设计一个针对被识别目标的颜色特征分析工具，通过多种情形的实验和对实验结果的统计确定了用于识别的阈值。不同环境下的实验结果证明，告警灯识别准确率达100 % 。