农业物流和冷链是智能农业的主要挑战，因为商品在运输到市场的过程中会出现重大损失和损坏。随着全球食品需求的增长，当务之急在于通过获取和使用每个运输产品的所有可用物流数据（例如，运动和物理压力、定位、温度和湿度）让农业更智能。目标在于更好地了解整个物流链和挑战，减少损失并提高整体生产力。
农业产品追踪应用使用核心微控制器单元来控制监测包裹运动和环境条件的MEMS运动传感器，使用信号调理模块从外部模拟传感器获取准确日期，使用基于GNSS的专用定位芯片组进行定位，并使用sub-1GHz技术来提供用于传送所获数据的低功耗广域网。该系统由电池供电，带ESD保护功能，并使用高效电源管理IC来实现长期运行。ST为各种农场管理和农业追踪系统提供完整的解决方案。
STM32微控制器的超低功耗版本基于Arm® Cortex®-M0内核，是能够满足具有挑战的性能和功耗要求的最佳选择。ST经过市场验证的MEMS和传感器包括运动传感器，该传感器用于监测包裹运动并触发其他应用模块，以最大限度地降低整个物流链的功耗。我们的低噪声、低功耗加速度计最适合此目的，而信号调节链则可以增加其他外围模拟传感器的功效。ST的解决方案还包括用于在整个物流链中实现非易失性数据记录的EEPROM存储器。
低功耗RF通信是此应用的关键，ST的产品组合提供了一系列最符合要求的连接技术：用于产品识别和数据收集的NFC、可随时将数据上传到云的GSM解决方案，以及用于远程通信的sub-GHz RF技术。
| 型号 | Description | |
|---|---|---|
| STEVAL-STRKT01 | LoRa® IoT tracker |
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主要特性
|
型号
STEVAL-STRKT01
LoRa® IoT tracker
Amplifiers and Comparators
MEMS and Sensors
| Part number | Description |
|---|---|
| HTS221 | Capacitive digital sensor for relative humidity and temperature |
| LIS2DH12 | 3-axis MEMS accelerometer, ultra-low-power, ±2g/±4g/±8g/±16g full scale, high-speed I2C/SPI digital output, embedded FIFO, high-performance acceleration sensor, VFLGA package |
| LIS2DW12 | 3-axis MEMS accelerometer, ultra low power, configurable single/double-tap recognition, free-fall, wakeup, portrait/landscape, 6D/4D orientation detections |
| LIS2MDL | Magnetic sensor, digital output, 50 gauss magnetic field dynamic range, ultra-low power high performance 3-axis magnetometer |
| LPS22HB | Ultra-compact piezoresistive absolute pressure sensor, 260-1260 hPa, digital output barometer, full-mold, holed LGA package (HLGA) |
| LPS33HW | Piezoresistive absolute pressure sensor, 260-1260 hPa, digital output barometer, water resistant package |
| LSM303AGR | e-Compass with 3D digital linear acceleration sensor, 3D digital magnetic sensor |
| LSM6DSL | iNEMO 6DoF inertial measurement unit (IMU), for smart phones and battery operated IoT, Gaming, Wearable and Consumer Electronics. Ultra-low power and high accuracy |
Part number
Capacitive digital sensor for relative humidity and temperature
3-axis MEMS accelerometer, ultra-low-power, ±2g/±4g/±8g/±16g full scale, high-speed I2C/SPI digital output, embedded FIFO, high-performance acceleration sensor, VFLGA package
3-axis MEMS accelerometer, ultra low power, configurable single/double-tap recognition, free-fall, wakeup, portrait/landscape, 6D/4D orientation detections
Magnetic sensor, digital output, 50 gauss magnetic field dynamic range, ultra-low power high performance 3-axis magnetometer
Ultra-compact piezoresistive absolute pressure sensor, 260-1260 hPa, digital output barometer, full-mold, holed LGA package (HLGA)
Piezoresistive absolute pressure sensor, 260-1260 hPa, digital output barometer, water resistant package
e-Compass with 3D digital linear acceleration sensor, 3D digital magnetic sensor
iNEMO 6DoF inertial measurement unit (IMU), for smart phones and battery operated IoT, Gaming, Wearable and Consumer Electronics. Ultra-low power and high accuracy
电源管理
| Part number | Description |
|---|---|
| LD39130S | 300 mA very low quiescent current Linear regulator IC with automatic Green mode |
| LDLN025 | 250 mA ultra-low noise LDO |
| STBB1-AXX | High efficiency single inductor dual mode buck-boost DC-DC converter with 2.3 A switches peak current |
| STBB2 | 800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter |
| STLQ020 | 200 mA ultra-low quiescent current LDO |
Part number
300 mA very low quiescent current Linear regulator IC with automatic Green mode
250 mA ultra-low noise LDO
High efficiency single inductor dual mode buck-boost DC-DC converter with 2.3 A switches peak current
800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter
200 mA ultra-low quiescent current LDO
