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Self-power wireless simulation solar angle sensor

A sun angle and sensor technology, applied to instruments, measuring angles, measuring devices, etc., can solve the problems of analog sun sensors that cannot be completely wireless, autonomous and flexible

Active Publication Date: 2009-09-09
TSINGHUA UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems that the existing analog solar sensors cannot be fully wireless, autonomous and poor in flexibility

Method used

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  • Self-power wireless simulation solar angle sensor

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Embodiment Construction

[0057] The invention provides a self-powered wireless analog sun sensor, the structure is shown in figure 1 , is characterized in that: it contains a sun angle sensor unit, a power supply support unit, and a wireless communication unit. The sun angle sensor unit includes three parts: front-end optical system, sun angle sensor and conditioning circuit; the power supply support unit includes two parts: energy harvesting device and power management circuit; the wireless communication unit includes A / D conversion circuit and wireless communication circuit .

[0058] The solar angle sensor unit of the present invention is characterized in that: it contains a light hole 1, a sun angle sensor 2, and an outer cavity 3, and utilizes a single hole to form a front-end optical system, and sunlight passes through the light hole 1 and passes through the sun angle sensor 2 Light spot 4 is formed on the surface, the sun angle sensor unit structure and its coordinates are defined as figure ...

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Abstract

The invention provides a self-power wireless simulation solar angle sensor, belonging to the spacecraft attitude measurement sensor technical field. The sensor is characterized in that the sensor comprises a solar angle sensor unit, a power support unit and a wireless communication unit. The solar angle sensor unit comprises four parts of a front end optical system, a solar angle sensor, a conditioning circuit and an external cavity body. The power support unit comprises two parts of a power collecting device and a power management circuit. The wireless communication unit comprises an A / D converting circuit which is connected with the conditioning circuit and used for receiving solar angle information and a wireless communication circuit. The self-power supply and the pure wireless simulation solar sensor are realized in the invention. A two-dimensional position sensitive detector (PSD) is adopted as the solar angle sensor which has the advantages of high precision, simple structure, small size and no externally physically connected electric interface. Therefore, the self-power wireless simulation solar angle sensor is beneficial for the integrated design of an application system.

Description

technical field [0001] The invention relates to a simulated sun sensor for a spacecraft and belongs to the technical field of spacecraft attitude measurement sensors. Background technique [0002] As an attitude vector acquisition sensor of the attitude measurement system, the sun sensor is widely used in various spacecraft. With the development of space vehicles in the direction of miniaturization and modularization, the need for smart and intelligent solar sensors is becoming more and more urgent. Existing sun sensors mainly include digital and analog types. Among them, the front-end of the digital sun sensor requires a complex optical system, while the image calculation and processing at the back-end are complex, the power consumption and volume of the device are large, and the corresponding data volume is large. Large communication capacity is required between sensitive devices and attitude determination systems, and it is difficult to adapt to the application of space ...

Claims

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Application Information

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IPC IPC(8): G01C1/00
Inventor 尤政刘有军李伟邢飞
Owner TSINGHUA UNIV
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