/** * 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]); }