Lidar Addressing Circuit for Emitter-Receiver Alignment
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Solution Overview
Problem
The misalignment between the fields of view of the emitting and receiving modules in lidar systems leads to the loss of optical signals due to machining errors and operational interference, making it difficult to achieve precise light alignment during assembly and operation.
Innovation Solution
A control method and addressing circuit that utilize a calibration process to determine the address of a starting group of detection units paired with activated emitters, followed by decoding and logic operations to generate a channel selecting and controlling signal, ensuring optimal photoelectric signal conversion and reducing signal loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If machining precision is improved to reduce misalignment between emitting and receiving modules, then alignment accuracy is improved, but manufacturing complexity and cost increase significantly
Solution Approach 1:
The patent performs light alignment operation during the assembling stage to pre-determine the channel selecting and controlling solution. This preliminary action captures the optimal alignment state before machining errors and operational interference can cause misalignment, storing the calibration results for later use in controlling the detection units.
Solution Approach 2:
The patent implements a feedback mechanism where the channel selecting and controlling solution determined during light alignment is used to control the activation of detection units during operation. This feedback loop ensures that the detection units are dynamically adjusted based on the pre-determined optimal alignment configuration, compensating for machining errors without requiring high manufacturing precision.
2Reliability
If channel selecting and controlling solution is determined during assembling, then initial alignment is optimized, but operational interference causes misalignment during operation
Solution Approach 1:
The patent makes the system dynamic by using the channel selecting and controlling solution to dynamically control which detection units are activated during operation. This dynamic adjustment allows the system to adapt to operational interference and maintain optimal detection performance despite changes in alignment conditions over time.
3Productivity
If photoelectric detection region is activated based on ideal alignment, then detection efficiency is maximized, but machining errors cause signal loss
Solution Approach 1:
The patent performs light alignment operation to pre-determine the optimal channel selecting and controlling solution before operation begins. This preliminary calibration identifies which detection units should be activated to achieve optimal detection efficiency, and this configuration is then used to control the detection units during operation to maximize productivity while minimizing signal loss due to machining errors.
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
Improves the accuracy of echo detection and ensures the integrity of data by dynamically adjusting the photoelectric detection region, reducing signal loss and enhancing the operating stability of the lidar.
Implementation Method 1
activating a corresponding group of detection units to perform photoelectric signal conversion of an echo beam
Data Source
AI summary
A lidar and a control method of the lidar, and an addressing circuit are provided. The control method of the lidar includes: acquiring an address of a starting group of detection units is paired with a group of activated emitters in the lidar, and generating a corresponding control signal for detection, where the address of the starting group of the detection units is determined based on a result of a calibration process performing a decoding process and a logic operation process on the control signal for detection, determining the address of the corresponding starting group of the detection units that has been processed by the calibration process, and determining addresses of other groups of detection units to be synchronously activated at the same time with the starting group of the detection units, determining a channel selecting address, and generating a selecting and controlling signal for corresponding channels.