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Wireless temperature acquisition device based on LoRa technology

A technology of wireless temperature and acquisition equipment, applied in radio wave measurement systems, satellite radio beacon positioning systems, measurement devices, etc., can solve the problems of single positioning method, inability to save data, and short transmission distance, and achieve signal penetration. Strong, flexible network layout, low power consumption

Pending Publication Date: 2021-10-22
SHENZHEN ZHONGCHUANG XINGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a wireless temperature acquisition device based on LoRa technology, which has strong signal penetration, long-distance transmission, low power consumption, multi-node, low cost, and easy deployment. The characteristics of flexible network mode, and the dual positioning method of GPS and LBS is adopted, and the local storage unit is set up to solve the problems existing in the existing technology that cannot realize independent monitoring of multiple temperature zones, weak signal penetration, short transmission distance, and no blind spot data supplementary transmission , When the network or server fails, the data cannot be saved, the data reporting frequency cannot be adjusted, the positioning method is single, there is no GPS signal or the GPS signal cannot be positioned when the GPS signal is weak, and the transmission strength and reception sensitivity are not high.

Method used

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  • Wireless temperature acquisition device based on LoRa technology
  • Wireless temperature acquisition device based on LoRa technology
  • Wireless temperature acquisition device based on LoRa technology

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Embodiment approach

[0091] As an embodiment of the present invention, refer to figure 2 , the main control unit 1 includes: MCU controller U2, inductor L1, capacitors C14 and C15, and resistor R14; the model of MCU controller U2 is STM32L151, and inductor L1 is an inductor with a magnetic core or an iron core; the MCU controller Pin 8 of U2 is connected to one end of capacitor C15 and one end of capacitor C14 in turn, then grounded, the other end of capacitor C14 is connected to the other end of capacitor C15, and then connected to pin 9 of MCU controller U2, and pin 9 of MCU controller U2 Also connect one end of the inductor L1, the other end of the inductor L1 is connected to the power supply voltage 3.3V, the pin 20 of the MCU controller U2 is connected to one end of the resistor R14, the other end of the resistor R14 is grounded, and the pin 23, Pin 35 and pin 47 are respectively grounded, and pin 1, pin 24 and pin 36 of the MCU controller U2 are respectively connected to a power supply volt...

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Abstract

A wireless temperature acquisition device based on a LoRa technology is used for real-time positioning and temperature and humidity monitoring of cold-chain logistics transportation and mainly comprises a GPS positioning module, an LBS positioning module, a temperature and humidity sensor module, a main control unit, a LoRa communication module, a lithium battery power supply module, a voltage adjusting module, a low-power-consumption management module, a dismounting alarm unit, a storage unit and the like. The LoRa technology has the advantages of being high in signal penetrability, long in transmission distance, low in power consumption, multiple in node, low in cost and flexible in network arrangement mode, a GPS and LBS dual positioning mode is adopted, a local storage unit is arranged, and the problems that in the prior art, independent monitoring of multiple temperature zones cannot be achieved, the signal penetrability is weak, the transmission distance is short, and the problems of no blind spot data supplementary transmission, incapability of storing data when a network or a server fails, non-adjustable data reporting frequency, single positioning mode, incapability of positioning when no GPS signal exists or the GPS signal is weak, and low transmitting intensity and receiving sensitivity are solved.

Description

technical field [0001] The invention relates to the technical field of Internet of Things information collection, in particular to a wireless temperature collection device based on LoRa technology. Background technique [0002] For cold chain logistics transportation, real-time positioning and temperature and humidity monitoring are required throughout the process to ensure the quality of the goods. Existing wireless temperature and humidity collection devices mostly use Bluetooth, WIFI, GSM to transmit signals and GPS positioning. The main problems are: high power consumption and high cost, unable to realize independent monitoring of multiple temperature zones, short transmission distance, and weak signal penetration , No blind spot data retransmission, data cannot be saved when the network or server fails, the frequency of data reporting cannot be adjusted, the positioning method is single, there is no GPS signal or when the GPS signal is weak, it cannot be located, the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G01S19/48G08C17/02
CPCG01D21/02G01S19/48G08C17/02
Inventor 韦力
Owner SHENZHEN ZHONGCHUANG XINGTONG TECH CO LTD
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