Product overview
The Wuxi Beiwei Sensing Technology BW-MINS50 is a micro inertial navigation system for applications including UAVs, robots, unmanned surface vessels, underwater vehicles and platform stabilization. Its sensing specifications cover a gyroscope and a three-axis accelerometer, supported by Kalman filtering. Communication uses Modbus, with selectable RS232, RS485 or TTL output and a maximum output frequency of 100Hz. The packaged configuration measures 55 × 37 × 24 mm. The bare board measures 33 × 27 × 6 mm; its length and width may vary by ±1 mm, with actual hardware dimensions taking precedence.
The BW-MINS50 operates from 5–12V DC and draws 30mA, with a maximum current of 40mA. Its attitude measurement range covers pitch ±90° and roll ±180°, with dynamic accuracy of 3° and static accuracy of 0.1°. Heading retention accuracy is 0.5°/10s, while the accelerometer range is ±2 g on each axis. Operating temperature extends from −40 to 85°C, and storage temperature from −55 to 100°C. Shock resistance is 2000g for a 0.5ms pulse, with three shocks per axis.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type and model | BW-MINS50 micro inertial navigation system |
| Applications | Unmanned surface vessels, underwater vehicles, robots, platform stabilization, large vessels, automated guided vehicles, automated and driverless driving, special-purpose vehicles, and UAVs |
| Processing algorithm | Kalman filtering |
| Communication protocol | Modbus |
| Supply voltage | 5-12V DC |
| Operating current | 30mA; 40mA maximum |
| Operating temperature | -40 to 85°C |
| Storage temperature | -55 to 100°C |
| Dynamic attitude accuracy | 3° |
| Static attitude accuracy | 0.1° |
| Attitude measurement range | Pitch ±90°; roll ±180° |
| Heading retention accuracy | 0.5°/10s |
| Gyroscope resolution | 0.01°/sec |
| Gyroscope bias stability | Less than 150°/hFull temperature range; 10s, 1σ. |
| Gyroscope bias repeatability | Less than 50°/h1σ. |
| Accelerometer range | ±2 gX, Y and Z axes. |
| Accelerometer bias stability at 100s | 0.001mg25°C, 100s, 1σ. |
| Accelerometer bias stability at 10s | 0.01mg25°C, 10s, 1σ. |
| Communication interfaces | RS232 / RS485 / TTLSelectable output interface. |
| Maximum output frequency | 100Hz |
| Mean time between failures | ≥90000 hours per failure |
| Electromagnetic compatibility | According to GBT17626 |
| Insulation resistance | ≥100 MΩ |
| Shock resistance | 2000g0.5ms; 3 shocks per axis. |
| Packaged dimensions | L55 × W37 × H24 mmPackaged configuration. |
| Bare-board dimensions | L33 × W27 × H6 mmBare-board configuration; length and width may vary by ±1mm, with actual hardware dimensions taking precedence. |
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