Product overview
The BWSENSING BW-MINS127 is a low-cost micro inertial navigation system intended for UAVs, robots, platform stabilization and other mobile applications. It combines gyroscope and accelerometer sensing with Kalman filtering and a special bias-tracking algorithm for drift elimination. The packaged unit measures 60 mm long, 59 mm wide and 29 mm high, with a weight of 280 g including its cable. Electrical integration uses a 9–36V DC supply, and selectable output options comprise RS232, RS485, TTL and Modbus.
The BW-MINS127 provides 1° dynamic accuracy and 0.01° static accuracy, with pitch measurement spanning ±90º and roll measurement spanning ±180º. Heading retention accuracy is 0.5°/60s, and the three-axis accelerometer range is ±1.8 g. Its temperature range is −40°C to +85°C with temperature compensation. Gyroscope bias stability across the full temperature range is 30°/h at 10s and 1σ. Shock resistance is 2000g for 0.5ms, with three shocks per axis; mean time between failures is at least 90,000 hours.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity and type | BWSENSING BW-MINS127 low-cost micro inertial navigation system with Modbus protocol |
| Dynamic accuracy | 1° |
| Static accuracy | 0.01° |
| Attitude measurement range | Pitch ±90º; roll ±180º |
| Heading retention accuracy | 0.5°/60s |
| Gyroscope resolution | 0.01°/sec |
| Gyroscope bias stability | 30°/hFull temperature range; 10s, 1σ. |
| Angular random walk coefficient | Less than 0.1 °/√h |
| Gyroscope bias repeatability | Less than 50 °/h1σ. |
| Accelerometer range | ±1.8 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. |
| Mean time between failures | ≥90,000 hours |
| Shock resistance | 2000g0.5ms; 3 shocks per axis. |
| Weight | 280gIncluding cable. |
| Dimensions | L60 × W59 × H29 mmPackaged product. |
| Supply voltage | 9–36V DC |
| Interface options | RS232 / RS485 / TTL / ModbusSelectable interface outputs. |
| Temperature range | −40°C to +85°CWith temperature compensation. |
| Bias tracking | Special bias-tracking algorithm for drift elimination |
| Filtering | High-performance Kalman filtering algorithm |
| Application areas | Uncrewed boats and underwater vehicles; robots; platform stabilization; large vessels; automated guided vehicles; automated and driverless operation; special-purpose vehicles; UAVs |
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