dead reckoning computer

简明释义

船位推算计算机

英英释义

例句

1.In maritime navigation, a dead reckoning computer 推算定位计算机 helps sailors estimate their current position based on speed and direction.

在海上导航中，推算定位计算机 dead reckoning computer帮助水手根据速度和方向估算当前位置。

2.Before the advent of GPS, sailors often depended on a dead reckoning computer 推算定位计算机 for navigation.

在GPS出现之前，水手们常常依赖推算定位计算机 dead reckoning computer进行导航。

3.The pilot relied on the dead reckoning computer 推算定位计算机 to navigate through the stormy weather.

飞行员依靠推算定位计算机 dead reckoning computer在暴风雨中导航。

4.During the flight, the dead reckoning computer 推算定位计算机 calculated the aircraft's position every minute.

在飞行过程中，推算定位计算机 dead reckoning computer每分钟计算一次飞机的位置。

5.The autonomous vehicle uses a dead reckoning computer 推算定位计算机 to maintain accurate positioning when GPS signals are weak.

这辆自动驾驶汽车使用推算定位计算机 dead reckoning computer在GPS信号弱时保持准确定位。

作文

In the realm of navigation and computing, the term dead reckoning computer refers to a system that calculates the current position of a vehicle or object based on its previously determined position. This method is essential for various applications, particularly in aviation, maritime navigation, and even in autonomous vehicles. The concept of dead reckoning itself dates back to ancient times when sailors would estimate their position at sea by considering their last known location and the speed and direction they had traveled since then. The dead reckoning computer builds upon this traditional technique by incorporating advanced algorithms and computational power to enhance accuracy and reliability. Unlike GPS systems that rely on satellite signals, dead reckoning uses inertial measurement units (IMUs), which consist of accelerometers and gyroscopes, to track movement. These sensors provide continuous feedback on velocity and orientation, allowing the computer to update its calculations in real-time. One of the significant advantages of using a dead reckoning computer is its ability to function in environments where GPS signals may be weak or unavailable, such as underwater or in densely populated urban areas with tall buildings. For instance, submarines often rely on dead reckoning techniques to navigate when submerged, as GPS signals cannot penetrate water. Similarly, autonomous vehicles utilize dead reckoning to maintain their course when GPS accuracy is compromised by urban canyons or signal loss. However, it is important to note that while dead reckoning is a powerful tool, it is not infallible. Over time, small errors in measurement can accumulate, leading to significant deviations from the actual position. To mitigate this issue, many modern dead reckoning computers integrate additional data sources, such as GPS, to correct any drift and enhance overall accuracy. This hybrid approach combines the strengths of both systems, ensuring reliable navigation even in challenging conditions. In conclusion, the dead reckoning computer represents a critical advancement in navigation technology. Its ability to calculate position without relying solely on external signals makes it invaluable in various fields, from aviation to autonomous driving. As technology continues to evolve, we can expect further improvements in dead reckoning systems, making them even more accurate and efficient. Understanding the principles behind a dead reckoning computer not only highlights its importance in modern navigation but also showcases the ingenuity of human innovation in overcoming challenges in the pursuit of accurate positioning.

在导航和计算的领域中，术语死算计算机指的是一种根据先前确定的位置计算车辆或物体当前位置的系统。这种方法对于各种应用至关重要，特别是在航空、海洋导航甚至自动驾驶车辆中。死算的概念可以追溯到古代，当时水手通过考虑他们最后已知的位置以及自那时以来所行驶的速度和方向来估算他们在海上的位置。 死算计算机在此传统技术的基础上，结合了先进的算法和计算能力，以提高准确性和可靠性。与依赖卫星信号的GPS系统不同，死算使用惯性测量单元（IMU），该单元由加速度计和陀螺仪组成，用于跟踪运动。这些传感器提供关于速度和方向的连续反馈，使计算机能够实时更新其计算结果。 使用死算计算机的一个显著优势是它能够在GPS信号可能微弱或不可用的环境中运行，例如水下或在人口稠密的城市区域中，那里有高楼大厦。例如，潜艇通常依赖死算技术在水下导航，因为GPS信号无法穿透水域。同样，自动驾驶车辆利用死算来保持航向，当GPS准确性因城市峡谷或信号丢失而受到影响时。 然而，重要的是要注意，尽管死算是一种强大的工具，但并非无懈可击。随着时间的推移，测量中的小误差可能会累积，导致实际位置的显著偏差。为了减轻这个问题，许多现代死算计算机集成了其他数据源，例如GPS，以纠正任何漂移并增强整体准确性。这种混合方法结合了两种系统的优势，确保即使在具有挑战性的条件下也能可靠导航。 总之，死算计算机代表了导航技术的关键进步。它在不完全依赖外部信号的情况下计算位置的能力使其在航空、自动驾驶等多个领域变得不可或缺。随着技术的不断发展，我们可以期待死算系统的进一步改进，使其更加准确和高效。理解死算计算机背后的原理不仅突显了它在现代导航中的重要性，也展示了人类在克服准确定位挑战方面的创造力。