Create: 2021-06-05 Update: 2025-06-30 11:47:24

📡 ۲/۲: #هلیکوپتر مریخ و نجات از حادثه:

سیستم ناوبری هلیکوپترِ مریخ از دو قسمت تشکیل شده:

۱. تجهیزاتِ الکترونیکی (IMU) برای اندازه‌گیری سرعت، شتاب، ارتفاع و موقعیتِ جسم پرنده. این اطلاعات، به‌عنوان ورودی به سیستم کنترل استفاده می‌شوند؛ سیستم کنترل با نرخ ۵۰۰ عمل در ثانیه، وضعیت هلیکوپتر را تنظیم می‌کند.

۲. سیستم تحلیل تصاویر: دوربینِ مخصوص ناوبری که در قسمت زیرین هلیکوپتر نصب شده است،‌ ۳۰ عکس در ثانیه ثبت می‌کند که به‌ عنوان ورودی در سیستم ناوبری و تحلیل تصاویر استفاده می‌شوند. الگوریتمِ کامپیوترِ پرواز،‌ زمان ثبت تصاویر و ساختارهای رنگ و سطح سیاره را بررسی کرده و پیش‌بینی‌هایی دربارهٔ موقعیت و سرعت انجام می‌دهد. 🌐

🔺در ثانیهٔ ۵۴، باگِ نرم‌افزاری در الگوریتمِ تحلیل تصاویر باعث شد تا یک عکس از بین رفته و در نتیجه بقیهٔ فریم‌ها و زمانبندی‌ِ آن‌ها به درستی انجام نشوند. دلیل فرودِ موفق به‌خاطر این بود که تیمِ طراحی هلیکوپتر، از سیستم ناوبری IMU در ثانیه‌های پایانی پرواز استفاده می‌کنند و نه از تحلیل تصاویر. این کار برای ایجاد ثباتِ بیش‌تر به هنگام فرود است. — #Perseverance — 🌐 — [پست قبل: 🔗]

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📡 ۲/۲: #هلیکوپتر مریخ و نجات از حادثه:

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