OTA固件升级

JieIOT OTA升级

云端下发指令升级硬件版本

一、流程概述

HTTPS 方式 OTA 升级流程描述

结合 MQTT 服务、设备和 Web 端总结的主题发送情况：

1.云端下发 OTA 升级信息包给设备：

主题：

 things/down/${tenantId}/${productKey}/${deviceKey}/ota/firmware/upgrade 

方向：云端 -> 设备
触发时机：在 Web 端判断上传了 OTA 升级包，创建了升级任务并且到升级执行时间时，或者用户手动点击“重新执行”时
消息内容：包含升级包的URL、版本和文件大小，以及固件文件MD5和固件文件HMAC值，并带有升级策略即是否强制升级和通道id

json

{
    "msgId":"45lkj3551234***",
  	"time":1626197189638,
	  "data":{
        "firmware":"1.3.13",
        "url":"http://ota.xiujiezhilian.com/s_UG_1.3***.bin",
        "size":"1306707",
        "md5":"e7471fe76cecc562f93d57745acac***",
        "hmac":"952C262E4F40D25B2DF2D3923485AE4EBD8B194F77D41BED2B67B1A335022***",
        "forced":1,
        "channel":0,
        "taskId":"task001"
        
    }
}

2.设备上报升级进度：

主题：

 things/up/${tenantId}/${productKey}/${deviceKey}/ota/progress/post 

方向：设备 -> 云端
触发时机：设备下载升级包过程中定时上报
消息内容：包含升级进度信息和升级异常状态，如

上报进度信息：

json

{
    "msgId":"45lkj3551234***",
    "time":1626197189638,
    "data":{
        "taskId":"task001",
        "channel":0,
        "firmware":"1.3.13",
        "progress":98
    }
}

上报升级异常状态

json

{
    "msgId":"45lkj3551234***",
    "time":1626197189638,
    "data":{
        "taskId":"task001",
        "channel":0,
        "firmware":"1.3.13",
        "code":42,
        "msg": "下载失败，无法连接服务器"
    }
}

3.设备升级完成后上报最新版本以及状态：

主题：

 things/up/${tenantId}/${productKey}/${deviceKey}/ota/firmware/post 

方向：设备 -> 云端
触发时机：设备端升级完成后，上报升级完成的固件信息
消息内容：包含最新版本和状态，如

json

{
    "msgId":"45lkj3551234***",
    "time":1626197189638,
    "data":{
        "type":1,  
        "taskId":"task001",
        "channel":0,
        "firmware":"1.3.13"
    }
}

说明：“type” : 业务类型，0：版本初始化 1：固件升级完成版本更新

模拟的整体交互流程;

json

//主题定义
things/down/${tenantId}/${productKey}/${deviceKey}/ota/firmware/upgrade     是云端推送给设备的主题

things/up/${tenantId}/${productKey}/${deviceKey}/ota/progress/post        是设备升级中上报升级进度给云端的主题

things/up/${tenantId}/${productKey}/${deviceKey}/ota/firmware/post        是设备升级完成后上报最新版本以及状态给云端的主题

左边是云端下发，右边是设备上报

json

// 执行开始，状态即变为升级中，与此同时更新升级进度，当前进度0%

Topic: things/down/000000/xj_humiture_01/tempCiallo/ota/firmware/upgrade 
{
    "msgId":"45lkj3551234***",
  	"time":1626197189638,
	"data":{
        "firmware":"1.3.13",
        "url":"http://ota.xiujiezhilian.com/s_UG_1.3***.bin",
        "size":"1306707",
        "md5":"e7471fe76cecc562f93d57745acac***",
        "hmac":"952C262E4F40D25B2DF2D3923485AE4EBD8B194F77D41BED2B67B1A335022***",
        "forced":1,
        "channel":0,
        "taskId":"task001"
    }
}
                                    Topic:  things/up/000000/xj_humiture_01/tempCiallo/ota/progress/post
                                    {
                                        "msgId":"45lkj3551234***",
                                        "time":1626197189638,
                                        "data":{
                                            "taskId":"task001",
                                            "channel":0,
                                            "firmware":"1.3.13",
                                            "progress":20
                                        }
                                    }

// 接口更新upgradeProgress进度为20%展示在云端前台


                                    Topic: things/up/000000/xj_humiture_01/tempCiallo/ota/progress/post
                                    {
                                        "msgId":"45lkj3551234***",
                                        "time":1626197189638,
                                        "data":{
                                            "taskId":"task001",
                                            "channel":0,
                                            "firmware":"1.3.13",
                                            "progress":60
                                        }
                                    }

// 接口更新upgradeProgress进度为60%展示在云端前台

                                    Topic: things/up/000000/xj_humiture_01/tempCiallo/ota/progress/post
                                    {
                                        "msgId":"45lkj3551234***",
                                        "time":1626197189638,
                                        "data":{
                                            "taskId":"task001",
                                            "channel":0,
                                            "firmware":"1.3.13",
                                            "progress":100
                                        }
                                    }

// 接口更新upgradeProgress进度为100%展示在云端前台
// 接口更新upgradeStatus状态为3，“升级成功”展示在云端前台

                                    Topic: things/up/000000/xj_humiture_01/tempCiallo/ota/firmware/post
                                    {
                                        "msgId":"45lkj3551234***",
                                        "time":1626197189638,
                                        "data":{
                                            "type":1,  
                                            "taskId":"task001",
                                            "channel":0,
                                            "firmware":"1.3.13"
                                        }
                                    }
// 更新当前设备的固件版本信息