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Internet of things node and miniaturization integration method thereof

An integrated method and technology of the Internet of Things, applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve problems that do not involve system miniaturization volume or weight indicators, and achieve low power consumption, reduced standby loss, and long transmission distances Effect

Inactive Publication Date: 2014-12-24
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nor does it address the miniaturized volume or weight of the system

Method used

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  • Internet of things node and miniaturization integration method thereof
  • Internet of things node and miniaturization integration method thereof
  • Internet of things node and miniaturization integration method thereof

Examples

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Embodiment Construction

[0014] Node production includes the following steps

[0015] 1. Make the total control circuit, a) according to figure 1 The schematic diagram of the solar battery charging circuit for lithium-ion batteries is shown, and the charging circuit is made. The LTC3105 chip of Linear Company is used in the circuit to charge a single lithium-ion battery. When the voltage of the solar battery is greater than 225mV, SHDN works, and LTC3105 starts to work. The working current is 24μA, and the quiescent current is less than 1μA. The internal boost provides a charging voltage of 3.9V to charge the Li-ion battery; when the battery voltage is less than 225mV, SHDN does not work, and the Li-ion battery supplies power to the IoT node load. The present invention adopts the lithium ion battery of model PL332530 produced by Shenzhen Heyue Electronics Co., Ltd.

[0016] The LTC3015:

[0017] FB: Transformer feedback input setting (Step-Up Converter Feedback Input), connect the Vout resistor di...

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PUM

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Abstract

The invention relates to an Internet of things node and a miniaturization integration method thereof. The Internet of things node consists of five efficient solar cells, one polymer lithium ion battery, one main control circuit board, one wireless transmission circuit and various sensors, wherein the main control circuit, the polymer lithium ion battery and the wireless transmission circuit are stacked and interconnected in an MCM (Multi Chip Module) encapsulating way; each layer is connected with an adjacent layer through a double-row 50-foot pin header 2*50; and four surrounding solar cells are connected in parallel with one solar cell covered on the top, a lithium battery is charged during the day, and power is supplied to the wireless transmission circuit through the lithium ion battery at night, so that long service life of the node is ensured. The Internet of things node is characterized in that: 1, the size is only 18 cm<3>, and the volume power density is up to 20.5Wh / l; 2, the service life of the Internet of things node is long, and the Internet of things node can continuously work normally for 28 days on cloudy days according to calculation of once data transmission per hour; 3, the power consumption of the main control circuit is low, the working current is 24muA, and the static current is lower than 1muA; and 4, the non-shielded transmission distance is 700 meters. A new thought is provided for future throwing type miniaturized Internet of things.

Description

technical field [0001] The invention relates to an Internet of Things node and a miniaturized integration method thereof, belonging to the technical field of new energy sources. Background technique [0002] As we all know, IoT nodes are usually used in remote, wild and other places where conventional power grids cannot reach, so they need to carry batteries. However, due to ecological, economical or short life of primary batteries, people are seeking to use as few disposable batteries as possible. To prolong the life of the micro-energy system, optimize the energy consumption structure, and seek the availability of peripheral energy. The biggest disadvantage of the primary battery is that when the battery power is exhausted, the node stops working and the battery needs to be replaced, which is very difficult in the wild. . Some researchers also use secondary batteries for power supply, but when the battery power is exhausted, the entire node needs to be recharged. It is ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J17/00H02J50/00
Inventor 周健周天之孙晓玮周舟周建华李洪飞
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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