Area coverage design method of SADA-free Internet of Things satellite
A design method and area coverage technology, applied in artificial satellites, design optimization/simulation, radio transmission systems, etc., can solve problems such as increasing the weight of satellites, increasing the number of solar cells, and increasing the cost of satellites
Pending Publication Date: 2022-07-05
BEIJING GUODIAN GAOKE TECH CO LTD
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Problems solved by technology
Traditionally, the method to solve the decline in energy harvesting is to increase the area of the solar wing and increase the efficiency of the solar cell, thereby increasing the number of solar cells. When the average current generated by the above-mentioned solar cell array drops to 63.69%, it is necessary to increase The number of solar cells is 50% of the original number, which increases the weight of the satellite and also increases the cost of the satellite
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[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the The embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the protection scope of the present invention.
[0040] like figure 1 As shown, the area coverage design method without SADA IoT satellite of the present invention includes the following steps:
[0041] 6) 1) Orbit forecast
[0042] The orbital parameters obtained on the satellite are mainly through orbital extrapolation. The initial orbital value of the extrapolation is the predetermined orbit determined by the rocket launch. The orbital extrapolation can use the analytical metho...
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The invention discloses a region coverage design method for SADA-free Internet of Things satellites. The method comprises the following steps: 1) orbit forecasting; 2) time unification; (3) the direction of the sailboard is preset; 4) the maneuvering capability of three axes under zero momentum; and 5) setting a measurement and control system. The invention belongs to the technical field of area coverage, and particularly relates to an area coverage design method for an SADA-free Internet of Things satellite, which comprises the following steps of: setting an area range opened by an effective load, autonomously finishing earth directional pointing control when a satellite is about to enter a specified area, and ensuring that the satellite is in an earth directional state when the satellite enters the specified area; when the satellite enters the designated area, the effective load is opened, communication between the effective load and the ground terminal is completed, communication in the designated area is kept uninterrupted, and when the satellite leaves the designated area, the effective load is automatically closed.
Description
technical field [0001] The invention belongs to the technical field of area coverage, and specifically refers to a design method for area coverage without SADA IoT satellites. Background technique [0002] Communication satellites generally provide services around the world around the world. Due to the relatively large load power, the batteries and solar wings carried by the satellites are also relatively large. In order to meet the needs of global all-weather services, the payload is turned on 24 hours a day, and its antenna The pointing center always points to the center of the earth, the solar wing is fixed on the ± Y plane of the satellite, and is equipped with a solar panel drive mechanism (SADA) to drive the solar wing so that the normal direction of the solar cell array always points to the sun, so as to obtain the maximum light energy Converted into electrical energy to charge the battery. [0003] However, because SADA is very expensive, and once used, it will beco...
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Login to View More IPC IPC(8): B64G1/10G06F30/20G06F17/11H04B7/185
CPCB64G1/1007G06F30/20G06F17/11H04B7/18519
Inventor 朱莲枝吕强
Owner BEIJING GUODIAN GAOKE TECH CO LTD