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Low power consumption multi-axis sensor system and method for reducing its power consumption

A multi-axis sensor and magnetic sensor technology, which is applied to instruments, measuring devices, surveying and navigation, etc., can solve the problem of high power consumption of multi-axis sensor systems, achieve the effect of reducing normal energy consumption and increasing the use time

Active Publication Date: 2016-02-24
MEMSIC SEMICON WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a multi-axis sensor system with low power consumption to solve the problem of high power consumption of the multi-axis sensor system

Method used

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Embodiment Construction

[0021] The present invention relates to a low-power multi-axis sensor system, which includes at least one multi-axis sensor, a comparator and a controller. Each axis of the multi-axis sensor is provided with a dedicated inductive element, and the comparator receives and compares each multi-axis The amount of information measured by the sensors and each inductive element, the controller controls to turn off the measurement of the multi-axis sensor or inductive element that obtains less information or reduce the measurement frequency thereof.

[0022] The present invention is based on the fact that in some cases, the multi-axis sensor of the multi-axis sensor system does not need to be fully opened for measurement, because the measurement data brought by all normal open measurement is not very meaningful compared to the partial open measurement. , and the measurement data obtained by only partially opening the measurement usage statement can meet the usage requirements. Therefor...

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Abstract

The invention relates to a low-power-consumption multi-axis sensor system, which comprises at least one multi-axis sensor, a comparator and a controller, wherein all axes of the multi-axis sensor are respectively provided with a special sensing element, the comparator receives and compares the quantity of information obtained through the measurement of each sensor and each sensing element, and the controller controls and closes the multi-axis sensor obtaining less information or measurement of the sensing element or reduces the measurement frequency of the sensing element . The low-power-consumption multi-axis sensor system has the advantages that the power consumption of the multi-axis sensor system is reduced, and the use time of the multi-axis sensor system is prolonged.

Description

technical field [0001] The invention relates to a multi-axis sensor system, in particular to a multi-axis sensor system with low power consumption; the invention also relates to a method for reducing power consumption of the multi-axis sensor system. Background technique [0002] Multi-axis sensors are increasingly used in positioning and navigation applications. Although different applications use different technical solutions, basically, the industry generally uses two-axis or three-axis magnetic sensors to measure the position of the sensor system relative to a reference magnetic field (for example, in navigation applications, the reference magnetic field is the earth's magnetic field) . These sensors are often paired with two- or three-axis accelerometers to compensate for the inclination of magnetic sensor compass systems and to measure acceleration. [0003] The choice of different technical solutions is based on how many degrees of freedom the sensor-embedded system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00
Inventor 马天
Owner MEMSIC SEMICON WUXI
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