micropsi-integration-sdk 0.24.0

Integration SDK for Micropsi Industries

Micropsi Industries Integration SDK

Package for implementing and testing robots to be integrated with Mirai. A brief introduction and command reference can be found here.

For more detailed documentation, see instructions.md

For Skill API reference, see skill_api.md

Sections:

• Installation
• Python interfaces module
• Examples
• Mirai sandbox
• Mirai dev server
• Mirai dev client

Installation

Package can be installed by

git clone [e-mail]:micropsi-industries/micropsi-integration-sdk.git
cd ./micropsi-integration-sdk
pip3 install .

Python interfaces module

In the micropsi_integration_sdk python module can be found abstract interfaces declaring the methods that must be implemented for successful control of each supported robot type.

Examples

In the examples folder can be found toy examples of each robot implementation. These respond to the sandbox and dev server tools and simulate simple robot motion, but do not communicate with real hardware. They can be used as a starting point when developing a new robot implementation.

Mirai sandbox

Standalone tool to test the SDK-based Robot control implementation. Moves the robot and verifies the implementation of methods described in Robot SDK. In particular the implementation of the high-frequency control loop. The direction (x, y or z axis) and length of the test movement can be configured.

usage: mirai-sandbox [-h] [-m MODEL] [-sl SPEED_LINEAR] [-sa SPEED_ANGULAR]
                     [-d DIMENSION] [-l LENGTH] [-ip IP_ADDRESS]
                     [-tl TOLERANCE_LINEAR] [-ta TOLERANCE_ANGULAR] [-v]
                     path

Micropsi Industries Robot SDK Tool

positional arguments:
  path                  Path to the robot implementation

optional arguments:
  -h, --help            show this help message and exit
  -m MODEL, --model MODEL
                        Name of the robot model as defined in the implementation.
  -sl SPEED_LINEAR, --speed-linear SPEED_LINEAR
                        Linear end-effector speed, meters per second.
                        Default: 0.05, Max: 0.1
  -sa SPEED_ANGULAR, --speed-angular SPEED_ANGULAR
                        Angular end-effector speed, radians per second.
                        Default: 0.2617993877991494, Max: 0.6981317007977318
  -d DIMENSION, --dimension DIMENSION
                        Number of axes to move the robot in.
                        Default: 1
  -l LENGTH, --length LENGTH
                        Length of test movement, meters.
                        Default:0.05, Max: 0.1m
  -ip IP_ADDRESS, --ip-address IP_ADDRESS
                        IP address of the robot.
                        Default: 192.168.100.100
  -tl TOLERANCE_LINEAR, --tolerance-linear TOLERANCE_LINEAR
                        Linear tolerance of the end-effector position achieved by robot.
                        Default: 0.001 meters
  -ta TOLERANCE_ANGULAR, --tolerance-angular TOLERANCE_ANGULAR
                        Angular tolerance of the end-effector position achieved by robot.
                        Default: 0.01 radians
  -v, --verbose         Enable debug logging.

Usage example: mirai-sandbox ./examples/cartesian_velocity_robot.py

Mirai dev server

This tool simulates a mirai controller in certain (very simplified) ways. Once started, it listens on port 6599 for the commands sent by either your PLC or robot program, or the mirai-dev-client tool. It accepts commands as documented in the binary skill api.

CAUTION When it receives the ExecuteSkill command, this tool will attempt to communicate with a robot at the configured address, and will run through an approximation of a full skill execution. If your sdk robot has been properly implemented, this should produce only miniscule motion, however this cannot be guaranteed. It is strongly recommended that you first test this in simulation before attempting to interface with real hardware.

usage: mirai-dev-server [-h] --robot-file ROBOT_FILE
                        [--robot-address ROBOT_ADDRESS]
                        [--server-address SERVER_ADDRESS] [--always-fail]
                        [--keepalive KEEPALIVE]

optional arguments:
  -h, --help            show this help message and exit
  --robot-file ROBOT_FILE
                        File where the sdk robot implementation can be loaded. eg: './examples/cartesian_velocity_robot.py' (default: None)
  --robot-address ROBOT_ADDRESS
                        Address where the mirai dev server can expect to find the robot, for motion streaming. (default: localhost)
  --server-address SERVER_ADDRESS
                        Address that the mirai dev server should listen on. (default: 0.0.0.0)
  --always-fail         Cause the dev server to respond to every request with a failure message. (default: False)
  --keepalive KEEPALIVE
                        Keep idle client connections for KEEPALIVE seconds before dropping. (default: 60)

Usage example:
# mirai-dev-server --robot-file examples/cartesian_velocity_robot.py

Mirai dev client

This tool functions as an example client. It can be used as an initial smoke-test to confirm the functionality of the mirai-dev-server tool, including that of the ExecuteSkill command. Your goal as an integrator is to replicate the behaviour of this client tool in your own robot or PLC program.

CAUTION When it receives the ExecuteSkill command, the dev server will attempt to communicate with a robot at the configured address, and will run through an approximation of a full skill execution. If your sdk robot has been properly implemented, this should not produce any motion. It is strongly recommended that you first test this in simulation before attempting to control real hardware.

usage: mirai-dev-client [-h] [--server-address SERVER_ADDRESS] [--count COUNT]
                        [--period PERIOD] [--api-version {1,2}]
                        {GetBoxMetadata,GetTrainedSkills,ExecuteSkill,PrepareSkillAsync,GetResult,GetLastEndstateValues,GetExceptionMessage,KeepAlive}

positional arguments:
  {GetBoxMetadata,GetTrainedSkills,ExecuteSkill,PrepareSkillAsync,GetResult,GetLastEndstateValues,GetExceptionMessage,KeepAlive}

optional arguments:
  -h, --help            show this help message and exit
  --server-address SERVER_ADDRESS
                        Hostname or IP address where the mirai dev server is running. (default: localhost)
  --count COUNT         Send the command COUNT times, reusing the connection. (default: 1)
  --period PERIOD       Wait PERIOD seconds between sent messages. (default: 1)
  --api-version {1,2}   Format messages for the given mirai binary api version. (default: 1)

Usage example:
# mirai-dev-client GetBoxMetadata