Moving Body Anti-Collision Device Using Millimeter-Wave Radar
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Solution Overview
Problem
Existing anti-collision devices using GPS face significant accuracy issues in determining the distance between moving bodies in small areas due to inherent GPS positioning errors, leading to potential collisions.
Innovation Solution
A moving body anti-collision device that employs millimeter-wave detection waves to accurately determine the distance between moving bodies by adjusting transmission intensity based on speed and including additional information like speed, direction, and ID, allowing for precise collision avoidance, even in close proximity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If GPS is used to determine position of moving bodies, then the system can operate with simple structure, but the measurement precision of distance between moving bodies deteriorates due to GPS positioning errors
Solution Approach 1:
The patent replaces GPS-based positioning with millimeter-wave radar technology to measure distance between moving bodies. The radar system transmits electromagnetic waves and measures the time of flight to calculate distance, achieving meter-level or sub-meter-level precision that overcomes GPS positioning errors while maintaining relatively simple system structure.
Solution Approach 2:
The patent changes the measurement parameter from satellite-based positional data to electromagnetic wave propagation time. By measuring the time of flight of millimeter-wave radar signals and using the speed of light to calculate distance, the system achieves higher precision distance measurement without requiring complex positioning infrastructure.
2Measurement precision
If millimeter-wave detection waves are used to determine relative position, then the measurement precision of distance is improved, but the device complexity increases due to additional transmission and receiving units
Solution Approach 1:
The patent integrates the millimeter-wave radar transmission unit, receiving unit, and processing unit into a unified anti-collision device that performs multiple functions: distance measurement, relative position determination, speed calculation, and collision warning. This multi-functional integration achieves high measurement precision while controlling overall system complexity.
Solution Approach 2:
The patent uses millimeter-wave electromagnetic waves as an intermediary carrier to transmit position and motion information between moving bodies. The electromagnetic waves serve as a medium that enables non-contact measurement of distance and relative position, simplifying the interaction between sensors and targets compared to direct mechanical measurement systems.
3Length of stationary object
If transmission intensity of millimeter-wave detection wave is increased to extend detection range, then the detection range is improved, but the energy consumption increases
Solution Approach 1:
The patent dynamically adjusts the transmission intensity of millimeter-wave detection waves based on the current operational state of the moving body. The transmission intensity is increased when the moving body is in high-speed state or when detection range extension is needed, and reduced when energy conservation is prioritized. This dynamic adjustment mechanism achieves extended detection range while controlling energy consumption through adaptive intensity modulation.
Solution Approach 2:
The patent changes the transmission intensity parameter of millimeter-wave radar signals adaptively. By modulating the signal power level based on detection requirements and energy availability, the system can extend detection range when necessary while reducing energy consumption during normal operation, achieving a balance between these competing requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device effectively prevents collisions by accurately determining relative positions and operations of nearby moving bodies, reducing energy consumption and enhancing detection range while maintaining a safe distance.
Implementation Method 1
a transmission unit that transmits a millimeter-wave detection wave
Implementation Method 2
a receiving unit that receives a millimeter-wave detection wave sent from a transmission unit provided on the other moving body
Data Source
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AI summary
A moving body anti-collision device is disclosed that is able to accurately determine a relative position between moving bodies in a small area and efficiently prevent collisions between moving bodies. The moving body anti-collision device includes a transmission unit that transmits a detection wave, a driving unit that generates a driving signal to drive the transmission unit, a receiving unit that receives a detection wave sent from a transmission unit on other moving body, a calculation unit that calculates a relative position of the moving body relative to the other moving body according to an intensity of the detection wave sent from the other moving body and received by the receiving unit, and a collision determining unit that determines, according to a calculation result given by the calculating unit, whether the moving body collide with the other moving body.