IoT
IoT

    All results for "" in this service

      All results for "" in this service

      • What's New
      • Service Overview
        • Platform Overview
        • Function Description
          • Device Access
          • Device Management
            • Rule Engine
            • Device Shadow
            • Remote Monitoring and Diagnosis
            • Remote O&M
        • Product Highlights
        • Limitations
        • Defined Terms
      • Getting Started
        • Service Usage Process
        • Experiencing IoT Platform Integration
          • Before You Start
          • Subscribing to the Developer Center and Creating a Project
          • Developing a Product Model Online
          • Developing a Codec Online
          • Using Simulators for Online Testing
      • User Guide
        • Management Platform
          • Logging In to the Management Portal of IoT Device Management
          • Application Management
            • Create Application
            • Information
            • Service Settings
            • Statistics
            • Grant List and Accept List
          • Device Management
            • Home
            • Product Models
            • Devices
              • Device List
              • Device Details
                • Information
                • Historical Data
                • Operations
                • Software
                • Message Tracing
                • Alarms
                • Device Shadow
                • Settings
                • Commands
                • Sub Devices
              • Registration
            • Groups
            • Alarms
            • Batch Tasks
              • Command Delivery
              • Device Configuration
              • Device Upgrade
            • Rules
            • Message Tracing List
            • Repository
              • Public Keys
              • Software
              • Firmware
          • System Management
            • Logs
            • Tools
            • Cloud Service Configuration
        • Developer Center
          • Introduction to the Developer Center
          • Logging In to the Developer Center
          • Manufacturer
          • Project
          • Product
            • Introduction
            • Product Development
              • Overview
              • Product Creation
              • Profile Definition
              • Codec Development
              • Device Development
              • Online Testing
              • Self-Service Testing
              • Product Release
            • Device Management
            • Upgrade Debugging
              • Overview
              • Firmware Upgrade
              • Software Upgrade
          • Application
            • Introduction
            • Interconnection
            • Subscription Test
            • Application Test
      • Developer Guide
        • Product Development
          • Obtaining Development Resources
          • Creating a Project and Product
          • Developing a Product Model
            • Development Guide
            • Offline Development
              • Profile Writing Guide
              • Profile Providing Method
              • Profile Field Description
            • Reference
              • Product Model Sample
              • Fields in the Profile Sample
          • Developing a Codec
            • Development Guide
            • Offline Development
              • Preparing the Development Environment
              • Importing the DEMO Project of the Codec
              • Developing a Codec
              • Packaging the Codec
              • Inspecting the Quality of the Codec
              • Signing the Codec Package with an Offline Signature
            • Codec Development Examples
              • Codec for Data Reporting and Command Delivery
              • Codec for Multiple Data Reporting Messages
              • Codec for Strings and Variable-Length Strings
              • Codec for Arrays and Variable-Length Arrays
              • Codec for Containing Command Execution Results
            • Reference
              • Message Processing Flow
              • decode API Description
              • Description of encode API
              • getManufacturerId Interface Description
              • getModel Interface Description
              • Precautions on Interface Implementation
              • Input/Output Format of the Codec Plug-In
              • Implementation Sample Interpretation
              • Appendix: Encryption Algorithms Supported by the JDK
          • Developing an Application
            • Application Connection to the IoT Platform
            • Data Subscription
            • Device Registration
            • Device Access to the IoT Platform
            • Data Reporting
            • Command Delivery
            • Development of Other APIs
            • Reference
              • Preparing the Java Development Environment
                • Installing JDK 1.8
                • Configuring Java Environment Variables (Windows OS)
                • Installing Eclipse
                • Creating a Project
                • Importing Code Example
              • Using Postman to Test IoT Platform APIs
              • CA Certificate
              • Performing Single-Step Debugging
          • Developing a Device
            • LWM2M/CoAP Device Integration
              • Device Integration
              • Device Testing
          • Self-Service Testing
            • Self-Service Testing Guide
            • Device Registration and Access Test
            • Data Reporting Test
            • Radio Parameter Reporting Test
            • Command Delivery Test
            • Command Response Test
            • Firmware Upgrade Test
            • Software Upgrade Test
            • Application Subscription Event Test
            • Application Data Push Test
          • Product Release
        • Device Interconnection
          • Creating an Application
          • Importing a Product Model
          • Registering a Device
          • Connecting a Device
        • Application Interconnection
          • Connecting an NA
          • Subscribing to Data
          • Commissioning an NA
        • SDK Usage Guide on the Device Side
          • LiteOS SDK Integration Development Guide
            • Overview
              • Background Introduction
              • System Plan
              • Integration Strategies
                • Integrability
                • Portability
                • Integration Restrictions
              • Security
              • Upgrade
            • Processfor Connecting Devices to OceanConnect on the Device Side
              • Preparations
              • Entrypoint Function for LiteOS SDK Device-Cloud Interconnect Components
              • Initializing LiteOS SDK Device-Cloud Interconnect Components
              • Creating a Data Reporting Task
              • Command Processing Function for LiteOS SDK Device-Cloud Interconnect Components
              • Main Function Body for LiteOS SDK Device-Cloud Interconnect Components
              • Data Structure
            • Appendix 1 LWM2M
              • Definition
              • Features
              • System Architecture
              • Object Defined by LWM2M
              • Resource Defined by LWM2M
              • API Defined by LWM2M
              • Firmware Upgrade
        • SDK Usage Guide on the Application Side
          • Huawei IoT Platform Java SDK Usage Guide
            • Before You Start
            • Requirements for the Development Environment
            • Downloading Related Development Resources
            • Importing the Java SDK Demo
            • Initializing and Configuring Certificates
            • Calling Service APIs
            • Implementing Callback APIs and Making, Exporting, and Uploading a Callback Certificate
            • Service API Calling Process and Precautions
            • Testing the SDK
      • API Reference
        • Northbound API Reference
          • Overview
          • API Usage Statement
          • Secure Application Access
            • Authentication
            • Refreshing a Token
          • Device Management
            • Registering a Device (Verification Code Mode)
            • Registering a Device (Password Mode)
            • Refreshing a Device Key
            • Modifying Device Information
            • Deleting a Device
            • Deleting a Child Device
            • Querying Device Activation Status
            • Modifying Device Shadow Information
            • Querying Device Shadow Information
          • Data Collection
            • Querying Information About a Device
            • Querying Device Information in Batches
            • Querying Historical Device Data
            • Querying Historical Device Shadow Data
            • Querying Service Capabilities of a Device
          • Subscription Management
            • Subscribing to Service Data of the IoT Platform
            • Subscribing to Management Data of the IoT Platform
            • Querying a Subscription
            • Querying Subscription in Batches
            • Deleting a Subscription
            • Deleting Subscriptions in Batches
            • Push Notification
              • Pushing Device Registration Notifications
              • Pushing Device Binding Notifications
              • Pushing Device Information Change Notifications
              • Pushing Device Data Change Notifications
              • Pushing Batch Device Data Change Notifications
              • Pushing Device Service Capability Change Notifications
              • Pushing Device Service Capability Addition Notifications
              • Pushing Device Service Capability Deletion Notifications
              • Pushing Device Deletion Notifications
              • Pushing Device Acknowledgment Notifications
              • Pushing Device Command Response Notifications
              • Pushing Command Status Change Notifications
              • Pushing Rule Event Notifications
              • Pushing Device Shadow Status Change Notifications
              • Pushing Software Upgrade Status Change Notifications
              • Pushing Software Upgrade Result Notifications
              • Pushing Firmware Upgrade Status Change Notifications
              • Pushing Firmware Upgrade Result Notifications
          • Command Delivery
            • Creating Device Commands
            • Querying Device Commands
            • Modifying Device Commands
            • Batch Creating Device Commands
            • Creating Device Command Revocation Tasks
            • Querying Command Revocation Tasks
            • Calling Device Services
          • Batch Processing
            • Creating a Batch Task
            • Querying Information About a Specified Batch Task
            • Querying Information About a Subtask of a Batch Task
          • Device Group Management
            • Creating a Device Group
            • Deleting a Device Group
            • Modifying a Device Group
            • Querying the Device Group List
            • Querying Information About a Specified Device Group
            • Querying Members in a Specified Device Group
            • Adding Members to a Device Group
            • Deleting Members from a Device Group
          • Device Upgrade
            • Querying a Version Package List
            • Querying a Specified Version Package
            • Deleting a Specified Version Package
            • Creating a Software Upgrade Task
            • Creating a Firmware Upgrade Task
            • Querying Details About a Specified Task
            • Querying Details About Subtasks of a Specified Task
            • Queries a Task List
        • Northbound Java SDK API Reference
          • SDK Demo Architecture and Usage Guide
          • SDK Initialization Configuration and Test
            • Methods of the NorthApiClient Class
            • Methods of the ClientInfo Class
            • Methods of the NorthApiException Class
            • Methods of the SSLConfig Class
            • Methods of the BasicTest Class
          • Service API List
            • Secure Application Access
              • Authentication
              • Refreshing a Token
              • Periodically Refreshing a Token
              • Stopping Periodically Refreshing a Token
            • Device Management
              • Registering a Device (Verification Code Mode)
              • Refreshing a Device Key
              • Modifying Device Information
              • Deleting a Device
              • Querying Device Activation Status
              • Querying Device Shadow Information
              • Modifying Device Shadow Information
            • Batch Processing
              • Creating a Batch Task
              • Querying Information About a Batch Task
              • Querying Information About a Subtask of a Batch Task
            • Subscription Management
              • Subscribing to Service Data of the IoT Platform
              • Subscribing to Management Data of the IoT Platform
              • Querying a Subscription
              • Querying Subscription in Batches
              • Deleting a Subscription
              • Deleting Subscriptions in Batches
            • Message Push
              • Pushing Device Registration Notifications
              • Pushing Device Binding Notifications
              • Pushing Device Information Change Notifications
              • Pushing Device Data Change Notifications
              • Pushing Batch Device Data Change Notifications
              • Pushing Device Service Information Change Notifications
              • Pushing Device Deletion Notifications
              • Pushing Device Acknowledgment Notifications
              • Pushing Device Command Response Notifications
              • Pushing Device Event Notifications
              • Pushing Device Model Addition Notifications
              • Pushing Device Model Deletion Notifications
              • Pushing Device Shadow Status Change Notifications
              • Pushing Software Upgrade Status Change Notifications
              • Pushing Software Upgrade Result Notifications
              • Pushing Firmware Upgrade Status Change Notifications
              • Pushing Firmware Upgrade Result Notifications
              • Pushing NB-IoT Command Status Change Notifications
            • Command Delivery (NB-IoT Commands)
              • Creating Device Commands
              • Querying Device Commands
              • Modifying Device Commands
              • Creating Device Command Revocation Tasks
              • Querying Command Revocation Tasks
            • Command Delivery (Non-NB-IoT Commands)
              • Calling Device Services
            • Data Collection
              • Querying Information About a Device
              • Querying a Device Information List
              • Historical Device Data Query
              • Querying Historical Device Shadow Data
              • Querying Service Capabilities of a Device
            • Device Group Management
              • Creating a Device Group
              • Deleting a Device Group
              • Modifying a Device Group
              • Querying Details About a Device Group
              • Querying Information About a Specified Device Group
              • Querying Members in a Specified Device Group
              • Adding Members to a Device Group
              • Deleting Members from a Device Group
            • Device Upgrade
              • Querying a Version Package List
              • Querying a Specified Version Package
              • Deleting a Specified Version Package
              • Creating a Software Upgrade Task
              • Creating a Firmware Upgrade Task
              • Querying the Result of a Specified Upgrade Task
              • Querying Details About Subtasks of a Specified Upgrade Task
              • Querying an Upgrade Task List
        • Northbound PHP SDK API Reference
          • SDK Demo Architecture and Usage Guide
          • SDK Initialization Configuration and Test
            • Methods of the NorthApiClient Class
            • Methods of the ClientInfo Class
            • Methods of the NorthApiException Class
            • Methods of the SSLConfig Class
          • Service API List
            • Secure Application Access
              • Authentication
              • Refreshing a Token
            • Device Management
              • Registering a Device (Verification Code Mode)
              • Refreshing a Device Key
              • Modifying Device Information
              • Deleting a Device (Verification Code Mode)
              • Querying Device Activation Status
              • Querying Device Shadow Information
              • Modifying Device Shadow Information
            • Batch Processing
              • Creating a Batch Task
              • Querying Information About a Specified Batch Task
              • Querying Information About a Subtask of a Batch Task
            • Subscription Management
              • Subscribing to Service Data of the IoT Platform
              • Subscribing to Management Data of the IoT Platform
              • Querying a Subscription
              • Querying Subscription in Batches
              • Deleting a Subscription
              • Deleting Subscriptions in Batches
            • Message Push
              • Pushing Device Registration Notifications
              • Pushing Device Binding Notifications
              • Pushing Device Information Change Notifications
              • Pushing Device Data Change Notifications
              • Pushing Batch Device Data Change Notifications
              • Pushing Device Service Information Change Notifications
              • Pushing Device Deletion Notifications
              • Pushing Device Acknowledgment Notifications
              • Pushing Device Command Response Notifications
              • Pushing Device Event Notifications
              • Pushing Device Model Addition Notifications
              • Pushing Device Model Deletion Notifications
              • Pushing Device Shadow Status Change Notifications
              • Pushing Software Upgrade Status Change Notifications
              • Pushing Software Upgrade Result Notifications
              • Pushing Firmware Upgrade Status Change Notifications
              • Pushing Firmware Upgrade Result Notifications
              • NB-IoT Device Command Status Change Notification
            • Command Delivery (NB-IoT Commands)
              • Creating Device Commands
              • Querying Device Commands
              • Modifying Device Commands
              • Creating Device Command Revocation Tasks
              • Querying Command Revocation Tasks
            • Command Delivery (Non-NB-IoT Commands)
              • Calling Device Services
            • Data Collection
              • Querying Information About a Device
              • Querying a Device Information List
              • Historical Device Data Query
              • Querying Historical Device Shadow Data
              • Querying Service Capabilities of a Device
            • Device Group Management
              • Creating a Device Group
              • Deleting a Device Group
              • Modifying a Device Group
              • Querying Details About a Device Group
              • Querying Information About a Specified Device Group
              • Querying Members in a Specified Device Group
              • Adding Members to a Device Group
              • Deleting Members from a Device Group
            • Device Upgrade
              • Querying a Version Package List
              • Querying a Specified Version Package
              • Deleting a Specified Version Package
              • Creating a Software Upgrade Task
              • Creating a Firmware Upgrade Task
              • Querying the Result of a Specified Upgrade Task
              • Querying Details About Subtasks of a Specified Upgrade Task
              • Querying an Upgrade Task List
        • Northbound Python SDK API Reference
          • SDK Demo Architecture and Usage Guide
          • SDK Initialization Configuration and Test
            • Methods of the NorthApiClient Class
            • Methods of the ClientInfo Class
          • Service API List
            • Secure Application Access
              • Authentication
              • Refreshing a Token
            • Device Management
              • Registering a Device (Verification Code Mode)
              • Refreshing a Device Key
              • Modifying Device Information
              • Deleting a Device (Verification Code Mode)
              • Querying Device Activation Status
              • Querying Device Shadow Information
              • Modifying Device Shadow Information
            • Batch Processing
              • Creating a Batch Task
              • Querying Information About a Specified Batch Task
              • Querying Information About a Subtask of a Batch Task
            • Subscription Management
              • Subscribing to Service Data of the IoT Platform
              • Subscribing to Management Data of the IoT Platform
              • Querying a Subscription
              • Querying Subscription in Batches
              • Deleting a Subscription
              • Deleting Subscriptions in Batches
            • Message Push
              • Pushing Device Registration Notifications
              • Pushing Device Binding Notifications
              • Pushing Device Information Change Notifications
              • Pushing Device Data Change Notifications
              • Pushing Batch Device Data Change Notifications
              • Pushing Device Service Information Change Notifications
              • Pushing Device Deletion Notifications
              • Pushing Device Acknowledgment Notifications
              • Pushing Device Command Response Notifications
              • Pushing Device Event Notifications
              • Pushing Device Model Addition Notifications
              • Pushing Device Model Deletion Notifications
              • Pushing Device Shadow Status Change Notifications
              • Pushing Software Upgrade Status Change Notifications
              • Pushing Software Upgrade Result Notifications
              • Pushing Firmware Upgrade Status Change Notifications
              • Pushing Firmware Upgrade Result Notifications
              • NB-IoT Device Command Status Change Notification
            • Command Delivery (NB-IoT Commands)
              • Creating Device Commands
              • Querying Device Commands
              • Modifying Device Commands
              • Creating Device Command Revocation Tasks
              • Querying Command Revocation Tasks
            • Command Delivery (Non-NB-IoT Commands)
              • Calling Device Services
            • Data Collection
              • Querying Information About a Device
              • Querying a Device Information List
              • Historical Device Data Query
              • Querying Historical Device Shadow Data
              • Querying Service Capabilities of a Device
            • Device Group Management
              • Creating a Device Group
              • Deleting a Device Group
              • Modifying a Device Group
              • Querying Details About a Device Group
              • Querying Information About a Specified Device Group
              • Querying Members in a Specified Device Group
              • Adding Members to a Device Group
              • Deleting Members from a Device Group
            • Device Upgrade
              • Querying a Version Package List
              • Querying a Specified Version Package
              • Deleting a Specified Version Package
              • Creating a Software Upgrade Task
              • Creating a Firmware Upgrade Task
              • Querying the Result of a Specified Upgrade Task
              • Querying Details About Subtasks of a Specified Upgrade Task
              • Querying an Upgrade Task List
        • AgentLite API Reference (Android)
          • Before You Start
          • APIs
            • Broadcasting
            • Access of Directly Connected Devices
              • Initializing AgentLite Resources
              • Releasing AgentLite Resources
              • Binding Configuration
              • Binding a Device
              • Unbinding a Device
              • Configuring Parameters
                • Setting Service Parameters
                • (Optional) Selecting an Encryption Algorithm Type
              • Connecting a Device
              • Disconnecting a Device
            • Management of Non-Directly Connected Devices on a Gateway
              • Adding a Device
              • Updating Device Status
              • Deleting a Device
            • Reporting Device Service Data
            • Receiving a Command
            • Releasing Data
          • Common Data Structures
            • IotaDeviceInfo Class
            • BIND_IE_RESULT IE Parameters
            • LOGIN_IE_REASON IE Parameters
            • HUB_IE_RESULT Parameters
        • AgentLite API Reference (C)
          • Before You Start
          • API Description
            • Broadcast Mechanism
            • Access of Directly Connected Devices
              • Initializing AgentLite Resources
              • Releasing AgentLite Resources
              • Binding the Configuration
              • Binding a Device
              • Unbinding a Device
              • Configuring Parameters
                • Configuring Service Parameters
                • (Optional) Configuring Encryption Algorithm Type Parameters
              • Device Login
              • Device Logout
            • Management of Non-Directly Connected Devices on a Gateway
              • Adding a Device
              • Updating the Device Status
              • Deleting a Device
            • Reporting Device Service Data
            • Receiving Device Commands
            • Releasing Data
            • JSON Component Description
          • Common Data Structures
            • ST_IOTA_DEVICE_INFO Structure
            • IEs in EN_IOTA_BIND_IE_TYPE Messages
            • Enumerated Values of the EN_IOTA_BIND_RESULT_TYPE Parameter
            • IEs in EN_IOTA_LGN_IE_TYPE Messages
            • Enumerated Values of the EN_IOTA_LGN_REASON_TYPE Parameter
            • Enumerated Values of the EN_IOTA_CFG_TYPE Parameter
            • IEs in EN_IOTA_HUB_IE_TYPE Messages
            • Enumerated Values of the EN_IOTA_HUB_RESULT_TYPE Parameter
            • IEs in EN_IOTA_DATATRANS_IE_TYPE Messages
            • IEs in EN_IOTA_DEVUPDATE_IE_TYPE Messages
          • Data Types
        • AgentLite API Reference (Java)
          • Before You Start
          • APIs
            • Observer Mode
            • Access of Directly Connected Devices
              • Initializing AgentLite Resources
              • Releasing AgentLite Resources
              • Binding Configuration
              • Binding a Device
              • Unbinding a Device
              • Configuring Parameters
                • Setting Service Parameters
                • (Optional) Selecting an Encryption Algorithm Type
              • Connecting a Device
              • Disconnecting a Device
            • Management of Non-Directly Connected Devices on a Gateway
              • Adding a Device
              • Updating Device Status
              • Deleting a Device
            • Reporting Device Service Data
            • Receiving a Command
            • Releasing Data
          • Common Data Structures
            • IotaDeviceInfo Class
            • IotaMessage Class
        • MQTT Interface Reference
          • Overview
            • Introduction to MQTT
            • Message Format
            • Flow Description
              • Service Process (One-Device-One-Secret)
              • Device Registration (One-Device-One-Secret)
          • API Description
            • Topic Definition
            • MQTT Connection Authentication Through CONNECT Messages
            • Reporting Data
            • Delivering Commands
      • FAQs
        • FAQs
        • Specifications
          1. Which Access Modes and Protocols Does IoT Device Management Support?
        • Product Use
          1. Is Authentication Required from Huawei for Subscribing to IoT Device Management?
          2. Can Huawei Provide Modules, Hardware, and Application Software?
          3. How Do I Control Devices with IoT Device Management?
        • Secondary Development
          • FAQs About Product Development
            • Profile Definition
              1. How to Develop a Profile
              2. Upload Is Unavailable When Uploading a Profile to the Developer Center
              3. Incorrect File Format Is Displayed When Uploading a Profile to the Developer Center
              4. Message Is Displayed Indicating That the Manufacturer ID and Device Model Exist When Uploading a Profile to the Developer Center
              5. How to Select a Data Type When Developing a Profile Online
              6. Profile Cannot Be Edited
            • Plug-In Development
              1. How to Develop Codecs
              2. Failed to Deploy a Plug-in That Is Developed Online
              3. What Is the Code Rule for Fields of the string and varstring Types
              4. What Is the Code Rule for Fields of the array and variant Types
              5. Whether Plug-Ins That Are Developed Online Support Transparent Transmission
              6. How to Use messageId During Online Codec Development
              7. How to Configure a Command Delivery Response During Online Codec Development
              8. Failed to Deploy a Plug-in That Is Developed Offline
              9. Failed to Upload a Plug-in That Is Developed Offline
              10. Plug-In Package Developed Offline Has Been Checked But Cannot Be Found When Uploading to the IoT Platform
              11. Codec Exception Occurs After a Plug-In Package Developed Offline That Has Been Checked Is Uploaded to the IoT Platform
              12. Offline Signature Fails
            • Device Development
              1. Registered Devices Cannot Connect to the IoT Platform
              2. Message 513 Is Reported When Devices Are Connected to the IoT Platform
              3. DTLS Encryption Algorithms Supported by the IoT Platform
              4. What Does CTNB Mean
              5. How to Select PSM, DRX, and eDRX
              6. Devices Cannot Receive Commands from the IoT Platform
              7. IoT Platform Does Not Receive Data Reported by Devices
              8. Historical Data Does Not Contain Data Reported By Devices While No Error Occurs
              9. Duration for Devices to Receive Commands
              10. Devices Fail to Receive Data Reporting Responses
              11. Data Reporting Is Successful at One Position But Fails at Another Position
              12. Command Status Is Not Changed to Successful After a Device Reports the Command Execution Result
              13. Whether the IoT Platform Can Switch Between the Big-Endian and Little-Endian
              14. Commands Fail to Be Delivered When a Device in DRX Mode Does Not Report Data in One to Two Days
          • FAQs About Application Development
            • Calling APIs
              1. Authentication API of the IoT Platform Is Successfully Called Locally But Fails to Be Called on Application Servers
              2. Error Occurs When an NA Calls an API
              3. Online Application Simulator Fails to Deliver Commands
              4. Command Is Successfully Delivered Using the Simulator But Fails to Be Delivered by Calling the API
              5. Application Server Fails to Deliver Commands and Receives Error Code 403
              6. How Does an Application Server Deliver a Cache Command
              7. What Does an Expired Command Mean
              8. Does the IoT Platform Support Command Resending
              9. What Does a Timeout Command Mean
              10. Can the IoT Platform Deliver Commands in Batches
              11. Are the APIs of the IoT Platform Called Only Using Java
              12. What Are the Command States on the IoT Platform
              13. Failed to Call the Calling the Registering Directly Connected Devices API
              14. APIs Fail To Be Called After a Period of Time While Parameters Remain Unchanged
              15. Commands Fail to Be Sent After a Period of Time While the Previous Commands Are Successfully Sent
              16. Historical Data Is Not Returned When the Querying Historical Device Data API Is Called
              17. Devices Registered with the IoT Platform Are Deleted After a Period of Time
            • Subscription and Push
              1. Invalid Callback Address Occurs When Calling the Subscription API
              2. How to Obtain the subscriptionId When Calling the Querying Subscription in Batches API
              3. Application Server Fails to Receive Data Pushed by the IoT Platform
              4. How Do I Export the HTTPS Push Certificate
              5. Difference Between deviceDatachanged and deviceDataschanged
              6. How Does an Application Server Obtain the IMEI of Devices
              7. Application Server Receives Data But an Error Is Displayed on the IoT Platform
              8. Push Messages May Fail to Be Sent to Application Servers
              9. How Does an Application Servers Obtain The Address Used by the IoT Platform to Push Messages
              10. Does the IoT Platform Supports Re-push
              11. How Does an Application Server Receive a Command Status Change Notification
              12. Application Servers That Have Subscribed to Confirmation Notifications and Command Response Notifications Fail to Receive Push Messages
              13. Does the IoT Platform Support Only HTTPS Callback Addresses
              14. Can the IoT Platform Push Data Reported by Different Devices Under the Same Application to Two Servers
              15. Can a Subscription Address Be a Domain Name
              16. Can a Callback Address Be Changed
              17. How Do I Obtain the Callback URL When Calling the Subscription API
          • FAQs About Software/Firmware Upgrade
            1. What Is Software/Firmware Upgrade
            2. Can IoT Platform Download Software/Firmware Packages From Third-party Servers
            3. Can the Target Version Be Earlier Than the Source Version?
            4. How Do I Obtain Software/Firmware Packages and Their Version Numbers
            5. Software/Firmware Upgrade Task Is Ended Immediately After Being Created
            6. What Is the Source Version Required for Uploading a Firmware Package on the Management Portal
            7. When Reporting Data, Devices Receive the Software/Firmware Version Query Command from the IoT Platform
            8. Are Services Interrupted During the Software/Firmware Upgrade
            9. What Are Common Software/Firmware Upgrade Errors
            10. Retry When Some Devices in the Group Failed to Be Upgraded
            11. Is Resumable Transmission Supported When the IoT Platform Sends Software/Firmware Packages to Devices
          • Others
            1. Does the IoT Platform Support Device Registration in Batches
            2. Does the IoT Platform Perform Flow Control on Applications and Devices
            3. How Does an Application Server Obtain Data Reported by Devices to the IoT Platform
            4. Is the Maximum Number of Applications and Devices Restricted on the IoT Platform
            5. Why Is an Online Device Changed to an Abnormal or Offline State After a Period of Time
            6. Are Command Delivery and Data Reporting Successful After a Device Becomes Abnormal or Offline
            7. How Long Does a Device Receive an Immediately-Delivered Command in eDRX Mode
            8. How Long Is Data Stored on the IoT Platform
            9. Can Multiple Devices Use One IMEI
      • General Reference
        • Glossary
        • Service Level Agreement
        • White Papers
        • Endpoints
        • Permissions