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What is nb-iot water meter? Lora water meter? GPRS water meter?
NB IOT is an emerging technology in the field of IOT, which supports the cellular data connection of low-power devices in Wan. NB IOT uses the authorized frequency band and is based on the most extensive network of operators in the world. It can be directly deployed in GSM network, umts network or LTE network to enjoy better service. Lora was born earlier than NB IOT. Lora works in unlicensed frequency band, so there is no extra charge. Lora protocol is simpler and easier to develop than NB IOT, with less relative cost. Lora node can sleep long or short according to the needs of specific application scenarios, and the battery life is longer. GPRS is the abbreviation of general packet radio service technology. For packet switching mode, users only occupy resources during the period of sending or receiving data, which means that multiple users can share the same wireless channel efficiently, which improves the utilization of resources, while the link time is long and the payment cost is low. GPRS can provide up to 115kbps transmission rate, high transmission rate.
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