Shield message in XML format for smart detection
<Shield version="1.0" xmlns="http://www.isapi.org/ver20/XMLSchema">
<enabled><!--req, xs: string, whether to enable shielded area for smart detection: "true,false"--></enabled>
<RegionList>
<Region><!--list-->
<id><!--req, xs: string--></id>
<enabled><!--req, xs: string, "true,false"--></enabled>
<RegionCoordinatesList>
<RegionCoordinates><!--req, list-->
<positionX><!--req, xs: integer, x-coordinate--></positionX>
<positionY><!--req, xs: integer, y-coordinate--></positionY>
</RegionCoordinates>
</RegionCoordinatesList>
</Region>
</RegionList>
</Shield>