Sweeping Robot Obstacle Avoidance Using Photosensitive Shield Module
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Solution Overview
Problem
Sweeping robots frequently collide with obstacles, causing damage and reducing their safety performance and service life due to the complex environment they operate in.
Innovation Solution
An obstacle avoidance mechanism comprising a shield module with a sliding block, elastic element, and photosensitive module that blocks and unblocks a light path to control the road wheel's movement, preventing collisions by sending signals when an obstacle is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sweeping robot operates in a complex environment, then it can perform sweeping tasks, but it frequently collides with obstacles causing damage
Solution Approach 1:
The patent applies preliminary action by using the photosensitive module to detect obstacles before the sweeping robot collides with them. The shield module with sliding block and elastic element is positioned in advance to intercept obstacles, and the photosensitive module预先 detects obstacles to trigger avoidance actions, preventing collision damage before it occurs.
2Productivity
If frequent impacts occur during operation, then the robot navigates complex environments, but damage accumulates reducing service life
Solution Approach 1:
The patent implements beforehand cushioning through the elastic element that absorbs impact energy when obstacles contact the shield module. The elastic element deforms under impact force and then restores, cushioning the shock before it reaches the robot's body, thereby protecting internal components from damage during navigation in complex environments.
3Device complexity
If no obstacle detection system is used, then the device structure remains simple, but collision damage occurs frequently
Solution Approach 1:
The patent replaces complex mechanical obstacle detection systems with a photosensitive module that uses optical fields to detect obstacles. This substitution maintains relative structural simplicity while providing effective obstacle detection capability, preventing collision damage without requiring complex mechanical sensors or actuators.
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
Enhances the safety performance and extends the service life of sweeping robots by effectively avoiding obstacles and reducing damage from collisions, allowing the robots to navigate more efficiently and safely.
Implementation Method 1
The sliding block is connected to the body through the elastic element
Implementation Method 2
the photosensitive module 15 is configured to form a light path X, the shading element 13 is moveable to match with the photosensitive module 15 and block or unblock the light path X
Data Source
AI summary
An obstacle avoidance mechanism applied to a sweeping robot, the sweeping robot comprises a body, a baffle and a road wheel, the baffle is arranged on an exterior side of the body, the baffle is arranged at a first distance from the body, the obstacle avoidance mechanism comprises a shield module and a photosensitive module. When the baffle collides with the an obstacle object, the light path of the photosensitive module is blocked by the shield module, so as to send out a first signal to make the road wheel stop moving forward or turn, and realize the obstacle avoidance function of the sweeping robot and enhance its service life.