RedFox-D3Gx Camera Application

1. Technical Specifications and Performance

1.1 Defogging Performance Characteristics

1.1.1 Automatic Defogging Mode(default)

Figure 1.1: Automatic Defogging Temperature Response (Environmental Temperature: -20°C)

Automatic Operation Characteristics:

• Smart Activation: Automatically engages when lens surface temperature < 0°C
• Predictive Heating: Proactive heating when lens surface temperature > 0°C to prevent condensation
• Temperature Stabilization: Maintains optimal lens temperature within 14°C range

1.1.2 Manual Defogging Mode

Figure 1.2: Manual Defogging Temperature Response (Environmental Temperature: 80°C)

Performance Specifications:

• Activation Threshold: When lens surface temperature > 0°C, manual heating activation required
• Temperature Differential: Maintains lens surface temperature 16°C above ambient when heating is active
• Stabilization Time: Lens surface temperature stabilizes within 14°C range after activation

1.2 Power Consumption and Timing Analysis

1.2.1 Voltage-Dependent Defogging Performance

Parameter	Input Voltage: 9V	Input Voltage: 12V	Input Voltage: 16V	Test Temperature	Performance Results-before Heating	Performance Results-after Heating
Defogging Time	6min30s	4min40s	4min	-20°C
Defrosting Time	7min30s	5min	4min	-25°C

Power Supply Requirements

This product supports 9-16V DC input. For optimal performance, maintain stable voltage levels. Higher voltages provide faster defogging response times while maintaining energy efficiency.

1.3 Implementation Modes and Control Systems

1.3.1 Manual Control Mode

Software Configuration for Manual Operation:

// Manual defogging activation via I2C interface
// I2C Address: 0x80 (8BIT: 0x80; 7BIT: 0x40)
// Register Address: 0x02CA
// Control Value: 0x90

// Enable Manual Defogging
i2c_write(0x80, 0x02CA, 0x90);
// Command: i2ctransfer -y -f 16 w3@0x40 0x02 0xca 0x90

// Disable Manual Defogging
i2c_write(0x80, 0x02CA, 0x00);
// Command: i2ctransfer -y -f 16 w3@0x40 0x02 0xca 0x00

1.3.2 Automatic Control Mode

Intelligent Environmental Response:

// Automatic defogging configuration
// Activates when lens surface temperature > 0°C
// Provides predictive heating when environmental temperature < 0°C

// I2C Address: 0x80 (8BIT: 0x80; 7BIT: 0x40)
// Register Address: 0x02CA
// Control Value: 0x91

// Enable Automatic Mode
i2c_write(0x80, 0x02CA, 0x91);
// Command: i2ctransfer -y -f 16 w3@0x40 0x02 0xca 0x91

1.3.3 Advanced Control Features

Intelligent Mode Selection:

• Hybrid Operation: Combines manual override with automatic environmental response
• Predictive Algorithms: Anticipates condensation conditions based on temperature trends
• Energy Optimization: Automatically adjusts heating intensity based on environmental conditions

Implementation Guidance

For optimal performance, implement automatic mode for continuous operation in variable weather conditions. Manual mode provides precise control for specific applications requiring immediate defogging response.