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发明公开
CN103455804A 一种基于动态阈值的输电线路山火卫星火点辨识方法 有权 转让

一种基于动态阈值的输电线路山火卫星火点辨识方法
摘要：
本发明公开了一种基于动态阈值的输电线路山火卫星火点辨识方法，包括如下步骤：（1）、接收MODIS红外卫星数据；（2）、生成三通道合成图片；（3）、明火火点定性辨识；（4）、动态阈值法火点定量辨识；（5）、剔除工业与城市火点信息；（6）、剔除输电线路沿线5km距离范围外的火点信息；（7）、得出输电线路山火火点信息。本方法：1、消除了不同季节和不同时刻对火点辨识的不利影响；2、消除了不同地区对火点辨识的影响；3、提高了输电线路火点识别准确率；4、可及时发布输电线路山火告警信息，提前做好应对措施，最大限度地减少山火给电网造成的损失。
摘要（英）：

The invention discloses an electric transmission line forest fire satellite fire point distinguishing method based on a dynamic threshold. The method comprises the following steps of receiving MODIS infrared satellite data, generating a three-channel composite picture, determining and distinguishing open flame fire points, determining and distinguishing fire points through a dynamic threshold method, removing industrial and urban fire point information, removing fire point information beyond a 5km distance range of an electric transmission line, and obtaining forest fire point information of the electric transmission line. The method eliminates side effects on fire point recognition in different seasons and different moments, eliminates effects of different areas on the fire point recognition, improves the accuracy of the fire point recognition of the electric transmission line, can timely publish electric transmission line forest fire alarm information to enable people to take measures in advance and reduces the power grid loss caused by forest fire to the maximum limit.

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