At the technical level, NB-IoT technology is the core driving force for the development of the mobile Internet of Things industry. Major operators rolled up their sleeves and worked hard. As a new generation of cellular IoT standard led by operators, NB-IoT has advantages in coverage, power consumption, security and other aspects, and can meet 90% of application scenarios. Module sans fil Wi-Fi With the freezing of 3GPP standards in 2016, with the support of national policies, the three operators plan to basically complete the coverage of NB-IoT in 2017, leading the world in speed. The full deployment of NB-IoT will also drive the upstream chip communication module and downstream platform/application market, driving the upgrading and innovation of the entire industry.
NB-IoT's inherent characteristics such as low power consumption, strong penetrating power, and large capacity can be called "a perfect match" for the application scenario of shared bicycles. The lower power consumption can ensure that the bicycle can be unlocked smoothly without charging for 2-3 years; Modem sans fil LoRa the strong penetrating power allows users to remember and track the location of the bicycle in real time even in places with poor signals such as corridors and basements, and can unlock it; large-capacity connection It can avoid the phenomenon of signal drop. For example, mobile phones often have no signal in densely populated areas such as Beijing Wudaokou and Shanghai Lujiazui, but this situation will not occur with NB-IoT smart locks. In short, several major features guarantee the smooth and reliable application of shared bicycles.
Les systèmes d'Entrée/Sortie Distribuée (ou Distributed IO en anglais) sont de plus en plus courants dans les environnements industriels et d'automatisation. Cette technologie permet de distribuer les points d'entrée et de sortie dans différentes zones d'une installation, offrant ainsi une flexibilité accrue et une simplification des infrastructures de câblage. Les IO distribués permettent de connecter capteurs et actionneurs sur des distances étendues tout en centralisant le contrôle, ce qui améliore l’efficacité et réduit les coûts de maintenance. Qu'est-ce que l'IO Distribué ? L’IO distribué est un système dans lequel les modules d'entrée et de sortie, qui traitent les signaux provenant des capteurs et des actionneurs, sont placés à différents endroits d'une installation. Ces modules sont reliés entre eux et à un contrôleur central, tel qu’un automate programmable (PLC), via un réseau de communication comme Ethernet industriel, Profibus ou Modbus. C...
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