Electronic board structure of lightweight star sensor

Abstract

The utility model discloses an electronic board structure of a lightweight star sensor, which comprises a square frame, a lens group is mounted on the left side of the square frame, five circuit boards are mounted on the outer side of the square frame, and a flexible PCB (printed circuit board) is connected between every two adjacent circuit boards. The four circuit boards are respectively provided with an image sensor module, a signal processing module, a data processing module, a communication interface module and a power management module. According to the utility model, the star sensor is integrated at the outer side of the lens group, so that the occupied space can be effectively reduced, the size of the star sensor is further reduced, the wiring length can be effectively reduced, the cost is saved, meanwhile, the star sensor can have three-dimensional thermal management, five circuit boards form a pentahedral radiator, and the space is saved. And each plate can be independently connected with heat dissipation surfaces (top / side / bottom) in different directions of the satellite shell, so that the heat dissipation effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to star sensor technical field, more specifically, relate to a kind of electronic board structure of lightweight star sensor. BACKGROUND

[0002] Star sensor is a kind of high-precision attitude measurement equipment, mainly used for the attitude determination of spacecraft. The electronic board structure of star sensor is to take a complete plane circuit board as main body, image sensor module, signal processing module, data processing module, communication interface module and power management module are installed on the circuit board to constitute a complete star sensor, all modules are arranged on a plane circuit board, it can lead to the larger space occupied by circuit board, seriously affect the volume of star sensor, so a kind of electronic board structure of lightweight star sensor is needed. UTILITY MODEL CONTENT

[0003] In view of the problems in the prior art, the utility model aims at providing an electronic board structure of lightweight star sensor to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] An electronic board structure of lightweight star sensor, comprising a square frame, a lens group is installed on the left side of the square frame, five circuit boards are installed on the outer side of the square frame, a flexible PCB board is connected between adjacent two circuit boards, an image sensor module, a signal processing module, a data processing module, a communication interface module and a power management module are respectively installed on four circuit boards.

[0006] As a further description of the above technical scheme:

[0007] The image sensor module is a CMOS sensor, which is connected to the lens group through an optical interface and is used to capture star map.

[0008] As a further description of the above technical scheme:

[0009] The signal processing module is responsible for real-time image preprocessing and converts analog signals into digital signals.

[0010] As a further description of the above technical scheme:

[0011] The data processing module is an embedded processor, which is used to run star map recognition algorithm.

[0012] As a further description of the above technical scheme:

[0013] The communication interface module is used for communication with satellite main control system, and outputs attitude quaternion or Euler angle.

[0014] As a further description of the above technical solutions:

[0015] The power management module is a DC-DC converter, supports wide voltage input, and provides multiple stable voltage outputs.

[0016] As a further description of the above technical solutions:

[0017] The square box is made of aluminum silicon carbide layer.

[0018] Compared with the prior art, the utility model has the advantages of:

[0019] The star sensor is integrated outside the lens group, which can effectively reduce the occupied space, thereby reducing the volume of the star sensor, and effectively reducing the wiring length and saving the cost, and at the same time, the star sensor can have a three-dimensional heat management, five circuit boards form a "pentahedron radiator", each board can be independently connected to the heat dissipation surface (top / side / bottom) of the satellite shell in different directions, thereby effectively improving the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the utility model;

[0021] Figure 2 It is a perspective view of the utility model;

[0022] Figure 3 It is a perspective view of the utility model;

[0023] Figure 4 It is a perspective view of the utility model.

[0024] Marked in the figure:

[0025] 1, square box; 2, lens group; 3, circuit board; 4, flexible PCB board; 5, image sensor module; 6, signal processing module; 7, data processing module; 8, communication interface module; 9, power management module. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model;

[0027] The utility model discloses: a lightweight star sensor's electronic board structure, including square 1, the left side mounting of square 1 has lens group 2, the outside of square 1 is equipped with five circuit boards 3, and the flexible PCB 4 is connected between two adjacent circuit boards 3, and four circuit boards 3 are installed image sensor module 5, signal processing module 6, data processing module 7, communication interface module 8 and power management module 9 respectively, image sensor module 5 is CMOS sensor, and through optical interface and lens group 2 butt joint, is used for capturing star map, signal processing module 6 is responsible for real -time image preprocessing, and analog signal is converted into digital signal, data processing module 7 is embedded processor, is used for running star map identification algorithm, communication interface module 8 is used for with satellite host control system communication, and output attitude quaternion or euler angle, power management module 9 is DC-DC converter, supports wide voltage input, provides multichannel regulated output.

[0028] The utility model discloses: a lightweight star sensor's electronic board structure, including square 1, the left side mounting of square 1 has lens group 2, the outside of square 1 is equipped with five circuit boards 3, and the flexible PCB 4 is connected between two adjacent circuit boards 3, and four circuit boards 3 are installed image sensor module 5, signal processing module 6, data processing module 7, communication interface module 8 and power management module 9 respectively, image sensor module 5 is CMOS sensor, and through optical interface and lens group 2 butt joint, is used for capturing star map, signal processing module 6 is responsible for real -time image preprocessing, and analog signal is converted into digital signal, data processing module 7 is embedded processor, is used for running star map identification algorithm, communication interface module 8 is used for with satellite host control system communication, and output attitude quaternion or euler angle, power management module 9 is DC-DC converter, supports wide voltage input, provides multichannel regulated output.

[0029] The utility model discloses: a lightweight star sensor's electronic board structure, including square 1, the left side mounting of square 1 has lens group 2, the outside of square 1 is equipped with five circuit boards 3, and the flexible PCB 4 is connected between two adjacent circuit boards 3, and four circuit boards 3 are installed image sensor module 5, signal processing module 6, data processing module 7, communication interface module 8 and power management module 9 respectively, image sensor module 5 is CMOS sensor, and through optical interface and lens group 2 butt joint, is used for capturing star map, signal processing module 6 is responsible for real -time image preprocessing, and analog signal is converted into digital signal, data processing module 7 is embedded processor, is used for running star map identification algorithm, communication interface module 8 is used for with satellite host control system communication, and output attitude quaternion or euler angle, power management module 9 is DC-DC converter, supports wide voltage input, provides multichannel regulated output.

[0030] Wherein: square 1 is squarely arranged, square 1 is aluminum silicon carbide layer, square 1 is made of aluminum silicon carbide, can effectively reduce the weight of star sensor, makes the star sensor more have the benefit of lightweight.

[0031] The above, just for the preferred specific implementation mode of the utility model;But the protection scope of the utility model does not limit to this. Any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme of the utility model and its improved conception, equivalent replacement or change, should cover in the protection scope of the utility model.

Claims

1. An electronic board structure of a lightweight star sensor, comprising a square frame (1), characterized in that: The left side of the frame (1) is provided with a lens group (2), the outer side of the frame (1) is provided with five circuit boards (3), adjacent two circuit boards (3) are connected with flexible PCB boards (4), four circuit boards (3) are respectively provided with image sensor modules (5), signal processing modules (6), data processing modules (7), communication interface modules (8) and power management modules (9).

2. The electronic board structure of a light-weight star sensor according to claim 1, characterized in that: The image sensor module (5) is a CMOS sensor, is connected with the lens group (2) through an optical interface and is used for capturing a star map.

3. The electronic board structure of a light-weight star sensor according to claim 1, characterized in that: The signal processing module (6) is responsible for real-time image preprocessing and converts an analog signal into a digital signal.

4. The electronic board structure of a light-weight star sensor according to claim 1, wherein: The data processing module (7) is an embedded processor and is used for running a star map recognition algorithm.

5. The electronic board structure of a light-weight star sensor according to claim 1, wherein: The communication interface module (8) is used for communicating with a satellite master control system and outputs a quaternion or an Euler angle.

6. The electronic board structure of a light-weight star sensor according to claim 1, wherein: The power management module (9) is a DC-DC converter, supports wide voltage input and provides multiple stabilized voltage outputs.

7. The electronic board structure of a light-weight star sensor according to claim 1, characterized in that: The frame (1) is square, and the frame (1) is an aluminum silicon carbide layer.

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