Information acquisition system and communication method thereof

Abstract

The invention provides an information acquisition system and a communication method thereof, and the communication method of the information acquisition system comprises the following steps: detecting a communication connection between a host device with a high-power networking unit and an information acquisition device with a low-power networking unit and an SIM card; when the communication connection is established, establishing a network connection with a base station through the high power consumption networking unit by using the identity authentication information stored in the SIM card. According to the information acquisition system and the communication method thereof, the identity authentication information in the built-in SIM card of the information acquisition device can be shared to the host device when the information acquisition device is connected with the host device, so that the host device can establish network connection with the base station by using the identity authentication information in the SIM card; therefore, the information acquisition device can perform data synchronization through the high-power-consumption networking unit of the host device so as to save the power consumption of the device.

Description

[0001] This invention is a divisional application, the original application number is 201810734810.8, and the filing date is July 6, 2018. technical field [0002] Embodiments of the present invention relate to the field of communication technology, and relate to a narrowband cellular Internet of Things (NB-IoT) device, in particular to an information retrieval system and a communication method thereof. Background technique [0003] Narrowband cellular IoT technology (NB-IoT) is one of the important branches of IoT technology. NB-IoT supports communication between low-power devices and cellular wide-area networks. Wherein, the cellular wide area network is also referred to as a low power wide area network (Low-Power Wide-Area Network, LPWAN). In other words, NB-IoT devices at least have low power consumption and the ability to transmit data over long distances. [0004] However, the NB-IoT device needs to be installed with a Subscriber Identity Module (SIM) card so that th...

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Problems solved by technology

[0005] When there is a SIM card in the NB-IoT device, although the NB-IoT device can be connected to the network through the SIM card to communicate with the remote server, it cannot transmit a large amount of data and requires a large bandwidth transmission method, and the SIM card is built in NB-IoT devices cannot be replaced or removed for use by other devices

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