Common Issues

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This section lists common issues encountered during the deployment and debugging phase of the Vision System, along with their solutions.

Mech-Vision Common Issues

Software

“bad allocation” Error Log Messages in Case of Memory Insufficiency

Garbled Characters in Chinese Log Files

Failure to Open OpenGL Windows due to Problematic Graphics Setting

Message “Graphics Card Driver Version Older Than Required” Appeared When Opening Mech-Vision

Solution Library

Failed to Download Solution from Solution Library

Calibration

Too Dark 2D Images Captured by LSR L-GL/LSR S-GL/DEEP-GL V4 during Calibration

Mismatched Image Sizes of Captured Images during Hand-Eye Calibration after Camera Switch

Calibration Board Sometimes Not Detected During Calibration

Step

Failed to Find a Step or a Step Parameter

Could not Find Old Steps after Software Upgrade

File Loaded in Steps Not Up-to-date

No Data Input for Necessary Input Ports of Steps

Error Occurred When Reference Direction and Fixed Axis Direction Set the Same in the Step “Rotate Axis to Minimize Included Angle to Reference Direction”

Error Occurred When the Script of Step “Cal Results by Python” Returned Nested Lists

The Runtime of “3D Matching” Relevant Steps Have Increased Occasionally

Image Data Not Found in Virtual Mode of Step “Capture Images from Camera”

Failure to Connect Hikvision 2D Camera When Connecting External 2D Cameras in Step “Capture Images from Camera”

Changes Ineffective for Parameter “Play Back Mode” of Step “Capture Images from Camera”

Error in Step “Capture Images from Camera”: The current calibration method is EIH, and the robot pose cannot be obtained

Incorrect Camera Model Displayed in Step “Capture Images from Camera”

Step “Capture Images from Camera” Failed to Acquire Depth Map or 2D Image

Step “Capture Images from Camera” Could Not Load Calibration Parameter Group

Step “Capture Images from Camera” Could Not Load Configuration Parameter Group

Longer Execution Time of “3D Coarse Matching V2” Step

Black Screen in the Visualizing Area while Simulating in the “Path Planning” Step

Error “No module named ‘xxx’” in “Calc Results by Python” Step

Tool

CAD Model Display Abnormality in the Matching Model and Pick Point Editor

Deep Learning

Mech-Vision Failed to Load Deep Learning Models 1.5.x

Mech-Vision Failed to Open a Project When Updated to Version 1.6.x

Fast Positioning Visual Abnormalities after Inputting Images of Different Sizes

Mech-DLK and Mech-Vision Generate Different Inference Results for the Same Image

IPC with English as System Language Failed to Use GPU for Deep Learning Inference

File Saving and Reading

Could Not Save Point Cloud Files or Images

Could Not Save Point Cloud Files or Images

Image Capture and Processing

Camera That Cannot Be Found by Mech-Eye SDK

Mech-Vision Cannot Capture Images Using the Camera That Can Be Found by Mech-Eye SDK

Mech-Vision Failed to Output Vision Result After Capturing Images

Camera Disconnected Occasionally

Point Cloud

Unable to Use Point Cloud Files Opened and Modified in Binary Mode

Point Cloud Loss

Pose

Axis Z Downward for Poses of Some Objects (Pointing to the Ground)

Interface Communication

Mech-Vision Project Unregistered (Error: 1001)

Calibration Timeout Caused by Improper Parameter Settings in Mech-Vision when using Standard Interface

Mech-Viz Common Issues

Software

Inconsistency between Poses of Real and Simulated Robots

Failure to Start Mech-Viz due to Problematic Graphics Setting

Garbled Characters in Chinese Log Files

Project Execution Slowed Down Once the Solution to “Problem 1” in the Collisions Panel Was Used

Waypoint Unreachable

The path of the real robot is not synchronized with that of the simulated robot in the software simulation area

Planning Result Indicated Waypoint Unreachable, Yet the Real Robot Could Reach the Pose

The Picking Waypoint Simulated as Reachable in Software, But Unreachable by the Real Robot

Standard Interface

Execution Failure of MM_START_VIZ Command in Standard Interface Communication

Others

No Vision Result When Mech-Viz Was Used to Master-Control the Robot

Picking Pose Planned Was Not Within the Vision Results Output by Mech-Vision

Robot Failed to Execute Commands Sent by the Software

During simulation of robots to place target objects, a message saying a collision with a placed target object pops up, and the planning always fails

Robot Repeatedly Attempts to Pick the Same Object After Failed Attempts

Communication Component Common Issues

Software General Issues

Robot Communication Common Issues

For issues related to robot communication scenarios, please refer to Robot Communication Common Issues.

IPC Common Issues

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