//协议版本
{
  "type": "FeatureCollection",
  "features": [
    {
      "id": "xxxx_xxxx_xxxx_xxxx",	//用户自定义飞行区的唯一标识
      "type": "Feature",   
      "geofence_type": "dfence",    //"dfence":围栏  "nfz":禁飞区
      "geometry": {
		"type": "Polygon",			// Polygon 类型的坐标需要保证第一个点和最后一个点相同
        "coordinates":  [
          [
            [
              25.41512807678825,  //WGS84 经度
              4.642350757553345   //WGS84 纬度
            ],
            [
              25.41512807678825,
              4.486362750550683
            ],
            [
              26.134956012525294,
              4.486362750550683
            ],
            [
              26.134956012525294,
              4.642350757553345
            ],
            [
              25.41512807678825,  //与第一个点相同
              4.642350757553345
            ]
          ]
        ]
      },
	  "properties": {
		"radius": 0,  	  //参数合理性校验范围: 【10，无限】单位m，多边形默认为0
		"enable": true   //区域使能，默认为true，当前版本不支持
	   }
    },
	{
	  "id": "xxxx_xxxx_xxxx_xxxx", //建议设计成UUID，作为该区域的唯一标识
	  "type": "Feature",     
      "geofence_type": "nfz",    //"dfence":围栏  "nfz":禁飞区	 
      "geometry": {
		  "type": "Point", 
		  "coordinates": [25.41512807678825, 4.642350757553345]
		},
	  "properties": {
          "subType": "Circle",
		  "radius": 1000,  //参数合理性校验范围: 【10，无限】单位m
	      "enable": true  //区域使能，默认为true，当前版本不支持
		}
	}
  ]
}