Ultrasonic Object Detection With Identification Marking
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Solution Overview
Problem
Existing object detection systems using ultrasonic sensors require a significant amount of time to complete multiple detection processes due to the need for waiting periods between transmission and reception of ultrasonic waves, making continuous detection inefficient.
Innovation Solution
An object detection system that includes a transmission unit for sequentially transmitting ultrasonic waves with different identification information and a reception unit for receiving corresponding waves, allowing for simultaneous transmission and reception of multiple waves, thereby reducing the overall detection time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a transmission wave is transmitted and then waited for a certain period before receiving the reflected wave, then accurate object detection is achieved, but the detection process takes a long time when executed multiple times continuously
Solution Approach 1:
The patent segments the detection process by assigning unique identification information to each transmission wave. This allows the reception unit to distinguish between multiple simultaneous transmission waves and their corresponding reflected waves, enabling parallel processing of multiple detection cycles without confusion between signals.
Solution Approach 2:
The patent applies preliminary action by transmitting multiple identification-marked transmission waves before receiving any reflected waves. The reception unit is prepared to identify and process each reflected wave according to its corresponding transmission wave's identification information, eliminating the need to wait for one complete cycle before starting the next.
2Productivity
If multiple detection processes are executed continuously, then detection coverage is improved, but the total detection time increases significantly
Solution Approach 1:
The patent enables continuous useful action by allowing the transmission unit to continuously transmit identification-marked waves while the reception unit simultaneously receives reflected waves. The identification information ensures that even overlapping transmission and reception operations can be correctly correlated, maintaining continuous detection without idle waiting periods.
Solution Approach 2:
By pre-marking transmission waves with identification information before transmission, the system prepares for rapid sequential processing. Each transmitted wave carries its identity, allowing the reception unit to immediately process reflected waves as they return without needing to wait for complete separation between detection cycles.
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 the continuous execution of object detection processes in a shorter time by overlapping the transmission and reception of multiple ultrasonic waves, improving efficiency and reducing the time required for multiple detection cycles.
Implementation Method 1
detecting, by an ultrasonic sensor, information related to an object, such as a distance to the object, by transmitting a transmission wave and receiving a reception wave which is the transmission wave reflected and returned by the object
Implementation Method 2
receiving a reception wave which is the transmission wave reflected and returned by the object
Implementation Method 3
a transmission unit configured to sequentially transmit a plurality of transmission waves to which identification information different from one another is applied
Implementation Method 4
a reception unit configured to sequentially receive a plurality of reception waves respectively corresponding to the plurality of transmission waves returned in response to reflection by an object
Data Source
AI summary
An object detection system includes: a transmission unit configured to sequentially transmit a plurality of transmission waves to which identification information different from one another is applied; a reception unit configured to sequentially receive a plurality of reception waves respectively corresponding to the plurality of transmission waves returned in response to reflection by an object after all the plurality of transmission waves are transmitted by the transmission unit; and a detection processing unit configured to detect information related to the object based on a relationship between the plurality of transmission waves and the plurality of reception waves.