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Vehicle-mounted electronic altitude compass having dip angle compensation function

A technology of inclination compensation and on-board electronics, applied in compass, instrument, measuring device and other directions, can solve the problems of large deviation of electronic compass reading, large vibration and electromagnetic interference of on-board equipment, achieve accurate reading, realize self-calibration and inclination, realize The effect of automatic correction

Active Publication Date: 2015-07-01
SUZHOU CHIEN SHIUNG INST OF TECH
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, when the vehicle is running, the on-board equipment is subject to large vibration and electromagnetic interference, resulting in large deviations in the readings of the existing on-board electronic compass

Method used

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  • Vehicle-mounted electronic altitude compass having dip angle compensation function
  • Vehicle-mounted electronic altitude compass having dip angle compensation function
  • Vehicle-mounted electronic altitude compass having dip angle compensation function

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Embodiment Construction

[0016] refer to figure 1 , the present invention provides a vehicle-mounted electronic altitude compass with inclination compensation, including an integrated electronic compass chip for detecting a three-axis acceleration and a three-axis magnetic field, a barometric pressure sensor and a temperature sensor, the integrated electronic compass chip, the The air pressure sensor and the temperature sensor are respectively connected with the single chip microcomputer. The body posture is obtained in real time through the integrated electronic chip of the 3-axis magnetic field sensor and the 3-axis acceleration sensor; the real-time altitude is obtained through the atmospheric pressure sensor chip; the real-time outside temperature is obtained through the temperature sensor. Effectively improve the accuracy of the vehicle electronic compass.

[0017] Realization of compass

[0018] The strength of the earth's magnetic field is about 0.5 gauss, and its component parallel to the su...

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Abstract

The invention relates to a vehicle-mounted electronic altitude compass having a dip angle compensation function. The vehicle-mounted electronic altitude compass comprises an integrated electronic compass chip for detecting the triaxial acceleration and the triaxial magnetic field, an air pressure sensor and a temperature sensor, wherein the integrated electronic compass chip, the air pressure sensor and the temperature sensor are connected with a singlechip respectively. The vehicle-mounted electronic altitude compass can monitor external environment parameters such as temperature, azimuth angle, altitude, vehicle body posture and the like in a driving process in real time through self calibration of the motion condition of the vehicle and the automatic correction of the dig angle, and the precision of the vehicle-mounted electronic compass is effectively improved.

Description

technical field [0001] The invention relates to a vehicle-mounted compass equipped with a micro-electromechanical system (MEMS), in particular to a vehicle-mounted electronic altitude compass with inclination compensation. Background technique [0002] According to statistics, 70% of the innovations in the automotive industry in the past 10 years come from the development and application of automotive electronics technology and its products. Automotive electronics technology is one of the core driving forces for the development of the automotive industry. In automotive electronics technology, the wide application of MEMS (Microelectro Mechanical Systems) not only improves the performance of on-board sensors, but also greatly reduces production costs. It can also be realized on high-end cars. However, when the vehicle is running, the vehicle-mounted equipment is subjected to relatively large vibrations and electromagnetic interference, resulting in large deviations in the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C17/32
CPCG01C17/32G01C17/38
Inventor 贾瑞徐雪仲小英施纪红浦灵敏
Owner SUZHOU CHIEN SHIUNG INST OF TECH
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