MapServer SOS（Sensor Observation Service）配置

Question

我试图设置MapServer SOS，但是我遇到了一个问题：SOS不返回任何东西。您可能会看到我在下面创建的映射文件：

MAP 
    NAME "SOS_DEMO" 
    STATUS ON 
    SIZE 400 300 
    EXTENT -180 -90 180 90 
    UNITS METERS 
    SHAPEPATH "C:\ms4w\apps\tutorial\data" 
    IMAGECOLOR 255 255 255 

    WEB 
    IMAGEPATH "C:\ms4w\apps\tutorial\templates" 
    IMAGEURL "C:\ms4w\apps\tutorial\images" 
    METADATA 
     "sos_onlineresource" "http://127.0.0.1:8282/cgi-bin/mapserv.exe?map=c:/ms4w/mysos.map?" 
     "sos_title"   "My SOS Demo Server" 
     "sos_srs"   "EPSG:4326" 
     "sos_enable_request" "*" 
    END 
    END 

    PROJECTION 
    "init=epsg:4326" 
    END 

    LAYER 
    NAME "sos_point" 
    METADATA 
     "sos_procedure" "ifgi-sensor-1" 
     "sos_offering_id" "WQ1289" 
     "sos_observedproperty_id" "Water Quality" 
     "sos_describesensor_url" "http://127.0.0.1:8181/DescribeSensor.xml" 
    END 

    TYPE POINT 
    STATUS ON 
    DATA 'sospoint' 
    PROJECTION 
     "init=epsg:4326" 
    END 
    CLASS 
     NAME 'sospoint' 
     STYLE 
     COLOR 255 128 128 
     END 
    END 
    END  
END 

正如你看到的，我试图从shape文件检索传感器数据。由SOS返回的信息是：

<om:ObservationCollection xmlns:gml="http://www.opengis.net/gml" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:swe="http://www.opengis.net/swe/1.0.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sos="http://www.opengis.net/sos/1.0" xmlns:ms="http://mapserver.gis.umn.edu/mapserver" xmlns:om="http://www.opengis.net/om/1.0" gml:id="WQ1289" xsi:schemaLocation="http://www.opengis.net/om/1.0 http://schemas.opengis.net/om/1.0.0/om.xsd http://mapserver.gis.umn.edu/mapserver http://127.0.0.1:8282/cgi-bin/mapserv.exe?map=c:/ms4w/mysos.map?service=WFS&version=1.1.0&request=DescribeFeatureType&typename=urban"> 
<om:member> 
<om:Observation> 
<om:procedure xlink:href="urn:ogc:def:procedure:ifgi-sensor-1"/> 
<om:observedProperty> 
<swe:CompositePhenomenon gml:id="Water Quality" dimension="3"> 
<swe:component xlink:href="urn:ogc:def:property:OGC-SWE:1:Id"/> 
<swe:component xlink:href="urn:ogc:def:property:OGC-SWE:1:sensor_nam"/> 
<swe:component xlink:href="urn:ogc:def:property:OGC-SWE:1:sensor_val"/> 
</swe:CompositePhenomenon> 
</om:observedProperty> 
<om:resultDefinition> 
<swe:DataBlockDefinition> 
<swe:components> 
<swe:DataRecord/> 
</swe:components> 
<swe:encoding> 
<swe:TextBlock tokenSeparator="," blockSeparator=" " decimalSeparator="."/> 
</swe:encoding> 
</swe:DataBlockDefinition> 
</om:resultDefinition> 
<om:result></om:result> 
</om:Observation> 
</om:member> 
</om:ObservationCollection> 

尽管我将6个观察值放入shapefile中，但SOS不返回任何值。请你让我知道我应该怎么做来解决这个问题？！

感谢， 易卜拉欣

Answer 1

也许最好问吗？ https://gis.stackexchange.com/