The easiest way to send this type of messages is to use the previously mentioned SDK package in the preferred programming language on the target device which provides a simple and clear communication interface. Device control messages This is communication that unlike the one described above is used to transmit messages from the cloud a client application to a device cloudtodevice. In this case the IoT Hub resource is also a communication intermediary and sent messages go first to the mentioned queue.
Depending on the configuration they may wait up to several days for the device to receive them. This is especially useful for devices that do not have continuous access to the network. Transferring files from devices This channel is used to transfer various types of files. These may be for example video recordings or in order to limit Email Marketing List the bandwidth consumption compressed packages containing telemetry data. Files transferred from the device go directly to the container configured in IoT Hub on the Azure Blob Storage resource. Monitoring configuration and device states.
This channel was named Device Twins by Azure engineers. It is primarily used to store device metadata in the cloud monitor the current status of the connection to the device and make sure for example whether it is via a cellular network or WiFi and to synchronize longterm flows such as the status of the stages of uploading a new version for a hardware device firmware. IoT Edge Azure IoT Edge is a service used to preanalyze data before sending it to the IoT Hub resource described above. These services are intended for customers who want to perform some data aggregation directly on the device instead of doing it in the cloud. By transferring some of the calculations to edge devices.
發表於 2023-12-3 16:27:05
