Introduction

Fault Capture ensures faults are logged, downtime is tracked, and faults are resolved efficiently.  Users can capture a fault screenshot directly from the treatment console, instantly generating a structured Machine Log entry which extracts the key details and organizes the data for analysis later.

Below is the user work flow:

1. Linac - The Linac operates in treatment mode. If the Linac experiences an issue, it generates fault codes.
   These codes are displayed on the Linac system and can either require intervention or be resolved by a therapist or service engineer. After the intervention, fault codes are cleared, allowing treatment to continue.
2. Therapist - The therapist monitors the Linac and creates a Screen Capture showing the fault code when fault codes are generated and displayed. Once the issue is addressed and treatment can continue, the therapist restarts treatment and creates a new fault-free screen capture to indicate no faults.
3. Equipment Hub - The Equipment Hub monitors the screen capture folder for updates related to the Linac.
   Once the fault codes are captured, Fault Capture Machine Log incidents are created, and downtime tracking begins. Once the fault is resolved, the system marks the fault resolved, and downtime tracking ends.
4. Physicist/Biomed Notification (Optional) - If configured, the Physicist or Biomed engineers are notified of the new Machine Log incident.

On the backend, the screen capture processing and fault code analysis performs the following:

1. Varian Screen Capture Folder - The Equipment Hub regularly checks for new screen captures in the folder.
   If new screen captures are detected, the process moves forward; otherwise, it loops until new SCs are available.
2. Local and Cloud Processing - The local Equipment Hub crops the mode ROI from the newly detected screen capture, sends it to the cloud service, where the mode string is extracted. If the mode string is either Treatment or Machine QA, the fault area of the screen capture will be sent for analysis and detailed fault processing.
3. Fault Detection and Data Extraction - The system checks if fault details are described, if so, the fault detail is extracted, and downtime tracking begins. If the fault is captured in treatment mode, downtime is recorded and the system checks for an open fault capture. If no open fault capture exists, a new fault capture Machine Log incident is created; otherwise, the system updates the existing Machine Log incident. The fault is ignored if no fault is detected or the screen capture is not in treatment mode.
4. Stopping Downtime Clock - Once the fault is resolved, the incident may be manually marked resolved or a screen capture can be triggered with no fault and the system will automatically stop the downtime and resolve the Machine Log incident. 

Requirements

The Machine Log Fault Capture needs to be activated at the account level.  You may contact support to add this feature. Equipment Hub version 3.5.0.1 or higher will need to be installed to utilize this feature withing the program.

Configuration

To configure Fault Capture, go to Manage - Room Configuration, locate the desired site and Linac,  and click Add Fault Capture

Within the Fault Capture screen, enter in folder path where the local machine screen captures are located. 

Next enter in the wildcard file associated to the screen capture in the folder and check for a successful connection to the Equipment Hub. 

In addition, you may also set the following options:

• Optional Notifications - check this setting to send notifications for Fault Captures using the settings on the Room Configuration page. The default is unchecked.
• Initial Dimensions - set the starting point and dimensions used to search for faults and operating mode. The default is X = 0, Y = 0, Width = 900, and Height = 62.
• Common Incident Time (minutes) - if multiple screen captures are within the Common Incident Time, a single Machine Log incident will be opened with each subsequent fault captured within that time logged as and update to the initial incident. The default is 10 minutes.
• Auto Close - if selected, AutoClose will immediately resolve fault capture Machine Log incidents rather than leaving them open. The default is unchecked.
• Redacted image folder - add an optional archive folder to hold redacted versions of the screen captures. Use the Check Folder button to confirm full access to the selected folder. The default is empty.

Be sure to select the reporter in Machine Logs and save. Navigate to Manage - Fault Captures to turn on the newly configured fault capture.

Manage Fault Captures

To manage the list of configured Fault Captures go to Manage > Fault Captures.  

Within the manage Fault Captures page, you can enter in "From Date", choose a status of On or Off, Edit to to make any adjustments to the fault capture configuration, and Delete the Fault Capture entirely. If the From Date is not selected, the current date will be used. Be cautious about start dates in the past as a Machine Log incident will be opened for all screen eligible screen captures after that date.