ARMxy Cortex-A7 Industrial Controller BL330 used for Motor Status Monitoring

Application Overview

The ARMxy Industrial Controller BL330 series is an industrial-grade embedded computer based on the Allwinner T113-i dual-core ARM Cortex-A7 processor (up to 1.2GHz), offering flexible I/O configurations and diverse communication interfaces. It is ideal for industrial IoT, automation control, and condition monitoring scenarios. For motor condition monitoring, the BL330 leverages its rich I/O interfaces and sensor support to collect real-time vibration and temperature data from motors, enabling data processing, analysis, and remote transmission.

Key Features for Motor Condition Monitoring

Based on the BL330 series' capabilities, here’s how it can be applied to monitor motor vibration and temperature:

(1) Vibration Monitoring

• Sensor Support:
  • The BL330 supports Y-series I/O boards, such as the Y37 (4-channel IEPE measurement), designed for vibration sensors (e.g., accelerometers or IEPE sensors).
  • The Y37 module can capture vibration signals during motor operation, suitable for detecting abnormal vibrations, bearing faults, or mechanical imbalances.
• Data Acquisition and Processing:
  • The built-in HiFi4 DSP processor is ideal for real-time vibration signal processing, performing spectral or time-domain analysis to assess motor health.
  • With hardware decoding support for 1080p@60fps, it can handle high-frequency vibration data.
• I/O Configuration:
  • X-series I/O boards (e.g., X26 or X27) provide digital inputs/outputs for triggering alarms or controlling equipment shutdown.
  • Y95/Y96 modules support PWM output and pulse counting, enabling motor speed or vibration frequency monitoring.

(2) Temperature Monitoring

• Sensor Support:
  • The BL330 supports Y-series I/O boards like Y51/Y52 (3-wire PT100/PT1000 RTD) or Y53/Y54 (4-wire RTD) for connecting high-precision temperature sensors to monitor motor surface or internal temperatures.
  • The Y58 module supports thermocouples (TC) for high-temperature environments.
• Data Acquisition and Processing:
  • High-precision analog input (AI) modules (e.g., Y31/Y33/Y34) collect temperature sensor signals with high accuracy, suitable for industrial environments.
  • Temperature data can be processed in real-time on the BL330’s Linux system, with thresholds set to trigger alarms.
• Environmental Adaptability:
  • The BL330 operates in an industrial temperature range of -40°C to 85°C, making it suitable for high-temperature environments generated by motor operation.

(3) Data Communication and Remote Monitoring

• Communication Interfaces:
  • BL330 is available with one to three 10/100M Ethernet ports, supporting industrial Ethernet protocols (such as Modbus TCP, MQTT, OPC UA, etc.), and can transmit vibration and temperature data to HMI or SCADA systems in real time. 
  • The Mini PCIe interface supports 4G and WiFi modules (e.g., BL330L or BL330W models), allowing data upload to cloud platforms via 4G networks.
  • Includes a SIM card slot and antenna interfaces for seamless remote communication.
• Protocols and Software Support:
  • Pre-installed BLIoTLink industrial protocol conversion software supports Modbus, MQTT, and other protocols, enabling seamless integration with mainstream industrial SCADA software or IoT cloud platforms (e.g., AWS IoT, Alibaba Cloud).
  • Node-Red support allows rapid development of IoT applications, enabling data collection, processing, and visualization through drag-and-drop programming.
  • The BLRAT remote access tool facilitates remote maintenance and data monitoring, ideal for managing motor equipment across multiple locations.

(4) Data Storage and Analysis

• Storage Options:
  • The BL330 supports 256MB NAND Flash or 4/8GB eMMC storage for local storage of vibration and temperature data, ensuring data retention during network interruptions.
  • An SD card slot allows storage capacity expansion for long-term data logging.
• Analysis Capabilities:
  • Running Ubuntu 20.04, the BL330 supports Docker containers for deploying data analysis tools (e.g., Python, MATLAB Runtime) for local data processing.
  • Qt-5.12.5/5.11.3 graphical interface development enables local or HDMI-output display of real-time monitoring data (e.g., vibration waveforms, temperature curves).

(5) Alarms and Control

• Alarm Mechanisms:
  • User-programmable LEDs (2) and digital output (DO) modules (e.g., Y21/Y22/Y24) enable local alarms (e.g., lights, buzzers) or remote notifications when vibration or temperature thresholds are exceeded.
  • Software-level threshold settings, combined with Node-Red or Linux scripts, automate alarm logic.
• Control Functions:
  • Relay outputs (Y24) or digital output modules can control motor shutdown or adjust operational states.
  • PWM outputs (Y95/Y96) can regulate motor speed or related actuators.

Recommended Hardware Configuration

To achieve motor vibration and temperature monitoring, the following BL330 configuration is recommended:

• Host Model: BL332B (3 Ethernet ports, 1 HDMI, supports 2 Y-series I/O boards, dimensions 48×83×110mm).
• SOM Model: SOM335 (8GB eMMC, 1GB DDR3, suitable for large data storage and processing).
• X-Series I/O Board: X23 (4 RS232/RS485, 4 DI, 4 DO, 20-pin, suitable for communication and alarm control).
• Y-Series I/O Boards:
  
  • Y51 (2-channel PT100 for temperature monitoring).
• Communication Module: BL332BL (includes 4G module for remote data transmission).
• Others: DIN35 rail mounting, 24V DC power (supports 9-36V wide voltage).

Example Model Naming: BL332BL-SOM335-X23-Y51
Meaning: 3 Ethernet ports, 8GB eMMC, 1GB DDR3, 4 RS232/RS485, 4 DI/DO, 2-channel PT100 temperature measurement, 4G module support.

Software Development and Deployment

• Development Environment:
  • Utilizes Linux-5.4.61 or Linux-RT-5.4.61 kernels for real-time data acquisition and processing.
  • Leverages provided development kits (e.g., Qt, Node-Red, Docker) for rapid development of vibration and temperature monitoring applications.
  • References BLIoT’s development examples (e.g., Node-Red IoT application cases, MQTT protocol examples) for data collection and cloud integration.
• Data Visualization:
  • HDMI interface (supports 1080p@60fps) connects to a display for real-time vibration waveforms and temperature curves.
  • Node-Red or Qt can be used to develop web dashboards for remote access.
• Remote Maintenance:
  • BLRAT enables remote firmware updates, parameter configuration, and fault diagnosis.
  • Docker container support facilitates updates to monitoring algorithms or new feature additions.

5. Environmental Adaptability and Reliability

• Environmental Testing:
  • The BL330 has passed high/low-temperature tests (-40°C to 85°C), damp heat tests (40°C, 85% humidity, 48 hours), and vibration tests (5Hz-500Hz, 2g acceleration), suitable for factory environments.
  • IP30 protection prevents ingress of solid objects ≥2.5mm, meeting industrial site requirements.
• Electromagnetic Compatibility (EMC):
  • Complies with GB/T 9254 Class A and CISPR 32 Class A for electromagnetic emissions, with resistance to ESD (contact ±4kV, air ±8kV), EFT (power lines 2kV), and surges (differential mode 2kV, common mode 4kV), ensuring stability in EMI environments.
• Reliability Design:
  • Independent hardware watchdog prevents system crashes.
  • Power reverse polarity and overcurrent protection ensure safe operation.

Advantages Summary

• High Performance: T113-i dual-core Cortex-A7 + HiFi4 DSP processor supports real-time vibration and temperature data processing.
• Flexible Configuration: Multiple I/O boards and storage options meet diverse monitoring needs.
• Robust Communication: Multiple Ethernet ports, 4G/WiFi modules, and industrial protocol support enable distributed monitoring.
• Industrial-Grade Design: Wide temperature range, IP30 protection, and EMC compliance ensure stability in harsh environments.
• Ease of Development: Rich development examples and tools (e.g., Node-Red, Qt, Docker) reduce development complexity.