/**
* 图表数据
*/
public function actionAjaxChartData()
{
$deviceData = DeviceInfo::getDeviceCountStat();
$alarmTypes = DeviceAlarm::getTypeChartData();
$alarmLevels = DeviceAlarm::getLevelChartData();
return json_encode(["device" => $deviceData, "alarmType" => $alarmTypes, "alarmLevel" => $alarmLevels]);
}
