Microwave Sensor Vehicle Direction Detection

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Solution Overview

Problem

Conventional GPS-based systems for detecting vehicle direction suffer from delayed determinations and high false rates due to reliance on global positioning systems and maps, which are not suitable for real-time monitoring of vehicle direction.

Innovation Solution

A method utilizing a microwave sensor located at the vehicle head to emit and receive microwaves, determining the vehicle's direction by analyzing the frequency of emitted and reflected microwaves, along with the vehicle's speed, to assess whether it is traveling in a wrong direction, without relying on GPS or maps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If GPS-based systems are used for vehicle direction detection, then positioning capability is provided, but real-time detection capability deteriorates due to time delays

Engineering Contradiction:

Improvedirection detection accuracyVSAvoiddetection response time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the GPS-based mechanical positioning system with a microwave sensor-based detection system. The microwave sensor emits microwaves and detects reflected signals to determine vehicle direction in real-time, eliminating the time delays inherent in GPS satellite communication and map-matching algorithms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces microwave signals as an intermediary to detect vehicle direction. By emitting microwaves and analyzing the reflected signals from surrounding objects, the system obtains real-time directional information without relying on GPS positioning and map data processing.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If GPS and map data are used for direction determination, then comprehensive positioning is achieved, but false determination rates increase

Engineering Contradiction:

Improvedirection detection reliabilityVSAvoiddirection detection accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent replaces the GPS-map matching system with a microwave-based direct detection system. The microwave sensor directly measures the angular position of reflected signals to determine vehicle direction, eliminating errors introduced by map data inaccuracies, GPS signal fluctuations, and algorithmic processing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The microwave sensor system is self-contained and does not rely on external GPS satellites or map databases. It independently determines vehicle direction by analyzing the angular distribution of reflected microwave signals, making the detection process more reliable and less prone to false determinations.

Inventive Principle:

Principle #25Self-service

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

This approach enables timely and accurate determination of vehicle direction, reducing false positives and negatives, and improving the stability of direction detection.

Implementation Method 1

obtaining a frequency of an emitted microwave from a microwave sensor and a frequency of a reflected microwave received by the microwave sensor

Methodology Applied

Scientific EffectDoppler effect: Doppler Effect

Data Source

PatentUS12117518B2Method, apparatus, electronic device, and readable storage medium for detection of vehicle traveling state

Publication Date: 2024.10.15 BEIJING QISHENG SCIENCE AND TECHNOLOGY CO LTD

AI summary

The present disclosure provides a method, an apparatus, an electronic device, and a readable storage medium for detection of vehicle traveling state. The method may include obtaining a frequency of an emitted microwave from a microwave sensor and a frequency of a reflected microwave received by the microwave sensor. The microwave sensor may be located at a vehicle head of a vehicle. The method may also include obtaining a running speed of the vehicle. The method may further include determining, according to the frequency of the emitted microwave, the frequency of the reflected microwave, and the running speed, whether the vehicle is traveling in a wrong direction.