NanoEdge AI Anomaly Detection library for ISPU

1. What is NanoEdge AI Library for anomaly detection?

NanoEdge™ AI Library is an Artificial Intelligence (AI) static library originally developed by Cartesiam, for embedded C software running on Arm^® Cortex^® microcontrollers.

When embedded on microcontrollers, it gives them the ability to easily "learn" and "understand" sensor patterns, by themselves, without the need for the user to have additional skills in Mathematics, Machine Learning, or data science.

The NanoEdge AI static library for anomaly detection is the code that contains an AI model (for example, as a bundle of signal treatment, Machine Learning model, and optimally tuned hyperparameters). It is designed to gather knowledge incrementally during a learning phase to become able to detect potential anomalous machine behaviors, and possibly predict them.

Information

In the free version of NanoEdgeAIStudio the NanoEdge AI library is only compatible with a selection of STM32 evaluation boards. See the full list here in the Studio documentation.

2. What is the Intelligent Sensor Processing Unit (ISPU)?

The ISPU (intelligent sensor processing unit) is an embedded programmable core that allows reading sensor data and processing it inside the ISM330ISN device and can directly provide, when necessary, the results of said processing to an external microcontroller. The ISPU can run any type of processing, from basic signal processing to AI algorithms. NanoEdgeAI Studio provide ready-to-use Anomaly Detection binary for the ispu.

4. Getting Started

In NanoEdge Studio select the ISM330ISN in the target list.

Information

To learn how to use the Studio, please refer to the following documentation

Once a benchmark is complete, the Deployement is enable. Select the corresponding benchmark, and the measures settings as below.

Important

Datarate and Full Scale must correspond with the ones used during the datalogging step.

After clicking Compile and selecting your library type, a .zip file is downloaded to your computer.

It contains:

• the ispu binary NanoEdge AI ispu_neai.h
• the ispu control source file ispu_ctrl.c
• the ispu control header file ispu_ctrl.h
• the shared memory file shared_mem.h
• the NanoEdge AI Emulators (both Windows^® and Linux^® versions)
• some library metadata information in metadata.json

4.1. ISPU binary

This file contains the complete binary. It should not be modify. It declares an array used in the initialization phase to flash the ISPU.

4.2. ISPU control && shared memory

Those files are used to control the ispu. It includes all the functions to initialize, send commands, process the answers etc.

6. Resources

Documentation
All NanoEdge AI Studio documentation is available here.