Rail transit vehicle-oriented vibration energy collection and management system and method

A vibration energy harvesting, rail transit vehicle technology, applied in vehicle components, current collectors, electric vehicles, etc., can solve problems such as affecting the work of wireless sensor nodes and falling into charging traps.

Active Publication Date: 2020-10-23
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the electromagnetic vibration energy harvesting in the prior art must pass through the voltage boosting and stabilizing module, and the boosting and st

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  • Rail transit vehicle-oriented vibration energy collection and management system and method
  • Rail transit vehicle-oriented vibration energy collection and management system and method
  • Rail transit vehicle-oriented vibration energy collection and management system and method

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Embodiment Construction

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a rail transit vehicle-oriented vibration energy collection and management system and method, and the system comprises the steps: the mechanical energy generated when a targetobject vibrates is collected through an energy collection sub-module, and the mechanical energy is converted into target direct-curret electric energy; the target direct-current electric energy is stored through a super capacitor; when the voltage of the super capacitor is larger than or equal to a first preset voltage threshold value, the charging control switch circuit is switched on, and targetdirect-current electric energy stored in the super capacitor is transmitted to the voltage stabilizing circuit. The voltage stabilizing circuit receives and adjusts the target direct-current electricenergy, generates stable-voltage output electric energy and inputs the stable-voltage output electric energy to the wireless sensor node; the voltage of the super capacitor is monitored through an ADC monitoring sub-module in a microprocessor of the wireless sensor node, and the wireless sensor node is controlled to keep dormancy when the voltage of the super capacitor is smaller than a second preset voltage threshold value; and when the voltage of the super capacitor is greater than or equal to a second preset voltage threshold, the wireless sensor node is controlled to start working.

Description

technical field [0001] The invention relates to the field of passive wireless sensor networks, in particular to a vibration energy collection and management system and method for rail transit vehicles. Background technique [0002] In the field of rail transit, wireless sensor nodes are usually used to monitor the running status of rail transit vehicles, such as subway axles in real time, which solves the problems of over-repair, under-repair and even after-event repair in the preventive and planned maintenance mode of subway axles. , wireless sensor nodes rely on external batteries for power supply, and the energy is limited. When the energy of the node is exhausted, the life cycle of the node ends. The use of electromagnetic vibration energy harvesting technology to convert the mechanical energy of subway wheel shaft vibration into electrical energy for wireless sensor nodes can solve the dilemma of node energy constraints. The core of electromagnetic vibration energy harv...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/32
CPCH02J7/32H02J7/0047H02J7/0063H02J7/0068H02J2207/50
Inventor 杨冬王洪超陈宏升张宏科郜帅
Owner BEIJING JIAOTONG UNIV
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