A positioning system and method based on nb network and rf ad hoc network

Abstract

The invention relates to a positioning system and method based on an NB network and an RF ad-hoc network. The positioning system comprises a cloud platform, an NB-IoT base station and at least two positioning terminals, wherein the cloud platform comprises a server, the server is used for receiving and processing data sent by the positioning terminals; the NB-IoT base station is used for conducting communication connection with the positioning terminals; and each positioning terminal comprises an NB module, an RF module and a power supply module, and the modules are connected through a line. The invention adopts the above scheme, the positioning terminals are placed on the goods, real-time tracking for positioning information of the goods is realized through the NB network, and data reporting is performed based on the RF ad-hoc network under the condition that a single piece of goods cannot report positioning data in an extreme case, so that a problem of network signal attenuation caused by goods stacking or metal packaging in the traditional positioning mode is effectively solved. The positioning terminals are low in power consumption, low in cost and high in practicability.

Description

Technical field: [0001] The invention relates to a positioning system and method based on NB network and RF ad hoc network. Background technique: [0002] When an enterprise sells some valuable goods, such as expensive medicines, health care products, tobacco and alcohol, etc., it needs to track the logistics. Inventory is well controlled to prevent falsified goods. At the same time, it can also track the flow of goods to generate big data, and analyze consumer habits to facilitate the formulation of sales strategies. [0003] At present, the commonly used positioning scheme is based on the combination of general packet radio service technology GPRS and global positioning system GPS positioning. This scheme has the following disadvantages: [0004] (1) The power consumption of GPRS and GPS is high, and the battery power supply maintenance time of the positioning terminal is short; [0005] (2) GPS cannot find satellite signals in indoor and closed environments, and cannot ...

AI Technical Summary

Problems solved by technology

[0005] (2) GPS cannot find satellite signals in indoor and closed environments, and cannot locate;

[0006] (3) The penetration ability of GPRS is weak. If the products are metal packaged or stacked together, the communication effect will be affected;

[0007] (4) The capacity of the GPRS base station is small, and too many terminals in the area will cause the base station to be overloaded, and some terminals cannot be stationed on the network

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