Scanner Status

Check the status of scanner node $ARGUMENTS in logs/IQRight_Daemon.debug.

Scanner node IDs are in the range 100-199 (e.g., 102 = Gym Side scanner).

Step 1: Last Activity

Search for the most recent packets from this scanner:

• Pattern: Received data from scanner $ARGUMENTS
• Pattern: HELLO.*src=$ARGUMENTS or HELLO from.*node $ARGUMENTS

Extract:

• Last DATA packet: timestamp, sequence number, code scanned
• Last HELLO: timestamp (indicates scanner restart)
• TTL value: 3 = direct connection, 2 = via repeater (1 hop), 1 = 2 hops

Step 2: HELLO Handshake History

Search for handshake events for this scanner:

• HELLO from SCANNER node $ARGUMENTS - Scanner initiated handshake
• HELLO_ACK sent successfully to node $ARGUMENTS - Server responded OK
• Failed to send HELLO_ACK to node $ARGUMENTS - Handshake failed

Count total HELLOs vs total DATA packets:

• Healthy ratio: < 1 HELLO per 10 DATA packets
• Warning: > 1 HELLO per 5 DATA packets (scanner restarting too often)
• Critical: > 1:1 ratio (scanner may be crash-looping)

Step 3: Data Quality

Count for this scanner:

• Total DATA packets received
• Successful lookups (lines after Received data from scanner $ARGUMENTS that lead to Using local results or Using API results)
• Failed lookups (Couldn't find Code or No data found for code)
• Responses sent back (Sent DATA to scanner $ARGUMENTS)
• Failed sends (FAILED to send.*Scanner.*$ARGUMENTS)

Calculate success rates.

Step 4: Error Analysis

Search for errors mentioning this scanner:

• scanner $ARGUMENTS combined with ERROR or FAILED
• Check for corrupted QR codes (PATTERN-001: 31 prefix, null bytes, doubled codes)

Step 5: Report

Scanner $ARGUMENTS Status
========================
Last Activity:    {timestamp} ({time ago})
Connection:       DIRECT (TTL=3) | VIA REPEATER (TTL=2)
Handshake:        Last HELLO at {time}, {count} total ({status})

Pipeline:
  Packets received:    {N}
  Lookups succeeded:   {N}/{total} ({pct}%)
  Responses sent:      {N}/{total} ({pct}%)
  MQTT published:      {N}

Errors:
  {list of errors with counts}

Health: HEALTHY | DEGRADED | CRITICAL
Recommendation: {action items}

Reference: See docs/LOG_ANALYSIS_SKILLS.md section 2 for packet signatures and section 6 for thresholds.