操作场景
物模型是将物理实体设备进行数字化描述，构建其数字模型。在物联网智能视频服务（消费版）控制台创建完产品后，您可以通过定义物模型来定义产品功能。
操作步骤
创建物模型
1. 进入 物联网智能视频服务（消费版）控制台，单击左侧导航栏物模型，选择需要为之添加物模型的产品，单击查看物模型。
2. 单击左上角创建物模型，选择添加标准功能或者添加自定义功能进行对应物模型创建。
功能类型
产品的功能包括标准功能和自定义功能，详情如下：
功能类型 | 功能描述 |
标准功能 | 提供一些 IPC 摄像头常用功能，可根据需求自行选择添加。分为必选属性和可选属性，必选属性不可删除，不可编辑；可选属性则可删除、部分可编辑。 |
自定义功能 | 如果标准功能无法满足您的需求，您可以自定义功能。则可由开发者自由删除和编辑。 |
功能元素
功能元素 | 说明 |
属性 | 可自定义创建，包括常量属性、只读属性、可写属性三种，支持整数型、浮点型、字符型3种基本数据类型，以及可扩展的自定义数据类型：结构体。 |
行为 | 可自定义创建，支持整数型、浮点型、字符型3种基本数据类型。 |
事件 | 内置模型暂不支持自定义创建。 |
功能元素 | 说明 | 备注 |
ProConst | properties-const 常量属性（内置模型，不支持用户扩展） | 终端固有的参数信息，运行期间不会发生变化，固件升级可能导致 ProConst 参数变更。（例如：设备版本信息、设备是否支持某项功能）设备上电后，主动将参数上送到服务器。 |
ProReadonly | properties-readonly 只读属性（用户可添加自定义数据） | 设备当前状态信息（例如：在线信息（内置模型）、镜头当前状态）设备状态变更时，主动报告到云端。 |
ProWritable | properties-writable 可写参数（用户可添加自定义数据） | 存储在云端，终端运行时需加载的参数（例如：云存储开通套餐（内置模型）、摄像头预置位）终端初次启动，主动从云端拉取最新数据；云端数据变更时，云端主动通知终端。 |
Action | Action 操作（用户可添加自定义控制对象） | 设备接收到控制操作命令，改变当前状态（例如：打开/关闭镜头、切换预置位）。 |
Event | Event 事件（内置模型） | 内置通用事件模型，支持应用层触发任意类型的 JSON 格式事件。 |
数据类型
数据类型 | 说明 |
基本数据类型 | int32：有符号32位整数。 uint32：无符号32位整数。 float32：32位浮点数。 float64：64位浮点数。 string32：字符串，最大长度32个字符。 string64：字符串，最大长度64个字符。 stringN：最大长度为N的字符串。 |
自定义数据类型 | struct：结构体，可用于复杂的可拓展数据类型。 |
平台支持用户进行自定义数据类型添加，选择物模型 > 自定义数据类型列表，单击左上角添加，即可编辑自定义数据类型。
发布物模型
1. 完成物模型创建或修改后，单击保存模板。
2. 单击发布，弹窗提示是否确认发布当前物模型版本，单击确认完成该版本物模型发布。
3. 发布成功后，物模型列表中将展示发布成功的物模型版本及发布时间，用户可单击查看，即可查看该版本物模型定义。
4. 物模型版本列表中，单击生成设备端代码，即可下载对应的设备端代码（生成的设备端代码会记录产品 ID/版本等信息）。
5. 用户通过设备端 SDK+ 物模型设备端代码完成固件版本开发，设备完成新版固件升级，即可实现该版本物模型功能迭代。
物模型格式参考
以下为 IPC 摄像头的物模型字段描述说明，包括各种数据类型和功能。示例代码如下：
{"iotModel":{"TypeDefs": [{"name": "_ProductInfo","desc": "产品信息","type": [{"name": "productModel","desc": "产品型号","type": "string32"},{"name": "productID","desc": "产品ID","type": "string32"},{"name": "funcCode","desc": "产品可选功能码","type": "uint32"},{"name": "revision","desc": "物模型修订版本","type": "uint32"},{"name": "revisionUtc","desc": "物模型修订时间","type": "uint32"}]},{"name": "_VersionInfo","desc": "固件信息","type": [{"name": "sdkVer","desc": "SDK版本号","type": "uint32"},{"name": "swVer","desc": "应用软件版本号","type": "uint32"},{"name": "hwVer","desc": "硬件版本号","type": "uint32"}]},{"name": "_CloudStorageService","desc": "云存储服务参数","type": [{"name": "serviceType","desc": "云存储服务类型","type": "int32"},{"name": "utcExpire","desc": "云存储服务过期时间(UTC)","type": "int32"},{"name": "pause","desc": "云存储服务暂停,设置为非0时,即使当前存在有效的云存储套餐,设备也不会云存推流","type": "int32"},{"name": "serviceParm","desc": "云存储服务参数信息","type": "string128"}]},{"name": "PlanTimeSection","desc": "计划时间段参数","type": [{"name": "desc","desc": "描述信息","type": "string64"},{"name": "enable","desc": "时间段参数使能","type": "int32"},{"name": "dayOfWeek","desc": "0~6:周日~周六 -1:不指定星期","type": "int32"},{"name": "begin","desc": "每天开始的时间0~86399 -1:无效","type": "int32"},{"name": "end","desc": "每天开始的时间0~86399 -1:无效","type": "int32"}]},{"name": "RecodePlan8","desc": "录像计划,预置8个可设置的时间段,用户可通过启用/设置这些时间段,实现计划录像的功能","type": [{"name": "timeSection1","desc": "预置时间段1","type": "PlanTimeSection"},{"name": "timeSection2","desc": "预置时间段2","type": "PlanTimeSection"},{"name": "timeSection3","desc": "预置时间段3","type": "PlanTimeSection"},{"name": "timeSection4","desc": "预置时间段4","type": "PlanTimeSection"},{"name": "timeSection5","desc": "预置时间段5","type": "PlanTimeSection"},{"name": "timeSection6","desc": "预置时间段6","type": "PlanTimeSection"},{"name": "timeSection7","desc": "预置时间段7","type": "PlanTimeSection"},{"name": "timeSection8","desc": "预置时间段8","type": "PlanTimeSection"}]},{"name": "IntCoordinate","desc": "整形位置坐标","type": [{"type": "int32","name": "x","desc": "x坐标"},{"type": "int32","name": "y","desc": "y坐标"}]},{"name": "PresetPosSetting","desc": "摄像头预置位设定参数","type": [{"name": "pos1","desc": "预置位1坐标","type": "IntCoordinate"},{"name": "pos2","desc": "预置位2坐标","type": "IntCoordinate"},{"name": "pos3","desc": "预置位3坐标","type": "IntCoordinate"},{"name": "pos4","desc": "预置位4坐标","type": "IntCoordinate"},{"name": "pos5","desc": "预置位5坐标","type": "IntCoordinate"},{"name": "pos6","desc": "预置位6坐标","type": "IntCoordinate"}]},{"name": "MyStruct","desc": "自定义数据结构","type": [{"name": "attr1","desc": "aaaa","type": "int32"},{"name": "attr2","desc": "bbbb","type": "string64"},{"name": "attr3","desc": "eeee","type": [{"name": "attr3_1","desc": "cccc","type": "int32"},{"name": "attr3_2","desc": "dddd","type": "int32"}]},{"name": "attr4","desc": "jjjj","type": [{"name": "attr4_1","desc": "aaaa","type": "int32"},{"name": "attr4_2","desc": "bbbb","type": "string64"},{"name": "attr4_3","desc": "eeee","type": [{"name": "attr4_3_1","desc": "cccc","type": "int32"},{"name": "attr4_3_2","desc": "dddd","type": "int32"}]}]}]}],"DataDefs": [{"name": "_productInfo","desc": "产品信息","type": "_ProductInfo","FC": "ProConst"},{"name": "_versionInfo","desc": "版本信息","type": "_VersionInfo","FC": "ProConst"},{"name": "_otaMode","desc": "OTA升级模式(内置对象)","type": "int32","FC": "ProWritable"},{"name": "_otaVersion","desc": "OTA升级版本(内置对象)","type": "string32","FC": "Action"},{"name": "_otaUpgrade","desc": "OTA升级进度(内置对象)","type": "int32","FC": "Action"},{"name": "_logLevel","desc": "日志输出等级设置(内置对象)","type": "int32","FC": "ProWritable"},{"name": "_cloudStoage","desc": "云存储服务参数(内置对象)","type": "_CloudStorageService","FC": "ProWritable"},{"name": "cameraOn","desc": "打开摄像头","type": "int32","FC": "Action"},{"name": "takePhoto","desc": "触发设备拍一张照片","type": "int32","FC": "Action"},{"name": "shootVideo","desc": "触发设备拍一段视频","type": "int32","FC": "Action"},{"name": "recodePlan","desc": "录像计划参数,摄像头按照参数设定的时间范围进行本地录像","type": "RecodePlan8","FC": "ProWritable"},{"name": "presetPosSetting","desc": "摄像头预置位参数(存储用户预设的摄像头位置坐标信息)","type": "PresetPosSetting","FC": "ProWritable"},{"name": "presetPosition","desc": "摄像头预置位(用户可控制摄像头转向预设的某个位置)","type": "int32","FC": "Action"},{"name": "test","desc": "测试数据","type": "MyStruct","FC": "ProReadonly"}]}}
