BACDEVICE

• Based on dustmeter.

The setup will present a BACNET device with a collection of AnalogInputObjects. The AnalogInputObjects are the readout of various remote meters.

Supported meters

• A thermorasp that runs the server.py
• A pumpstation that runs the daemon
• A DYLOS DC1700 air quality monitor connected to a USR-TCP232-302 on TCP server mode listening at 8888 port

Software dependencies:

• python 3.4 or newer
• bacpypes 0.16
• PyQt5

Install bacpypes

pip3 install bacpypes==0.16

Install PyQt5

apt-get install python3-pyqt5

How to run

python3.4 main.py

Please make sure previous seesion of main.py have exited and relased the network port.

How to configure

The configuration file is called server.cfg. It contains multiple [sections] of key = value pairs. Lines can be comments by prepending a #.

Server section

The server section is the main configuration section. It has the following configuration keys:

• ip: IP address String
• port: Integer
• objectName: String
• vendorIdentifier: Integer
• vendorName: String
• location: String
• modelName: String
• description: String
• dustmeters: Optional, list of space seperated section names
• thermorasps: Optional, list of space seperated section names
• pumpstations: Optional, list of space seperated section names

The last three keys dustmeters, thermorasps and pumpstations have the value section names seperated by spaces. Each of those section name corresponds to a configuration section of a meter to monitor.

Meter sections

All meter configuration sections have the following optional keys:

• description: String
• deviceType: String
• updateInterval: Integer
• resolution: Float

Dustmeter sections

A section that has been given in the value of the dustmeters key can have the following keys:

• host: String, defaults to localhost
• port: Integer, defaults to 8888
• name: String, defaults to dustMeter
• default_dust: Defaults to 0
• reconnect: Bool, defaults to True

Thermorasp sections

A section that has been given in the value of the thermorasps key can have the following keys:

• host: String, defaults to localhost
• port: Integer, defaults to 50007
• name: String, defaults to ThermoRasp

Pumpstation sections

A section that has been given in the value of the pumpstations key can have the following keys:

• host: String, defaults to localhost
• port: Integer, defaults to 63432
• name: String, defaults to Pumpstation
• reconnect: Bool, defaults to False

Adding a new meter

To add support for another type of meter, create a new module with a new class, which inherits from meter_base.MeterBase.
The module must be imported in the main.py file and must be added as a value together with the configuration key it shall use to the METERS map in main.py.
The module needs to have a function called getMeters, that takes a map of configuration values, which was read from the configuration file, and returns a list of new meter objects.
The new class must implement start and join methods, which have the functionality of those of threading.Thread.
In addition the class has a stop method, which gets called when monitoring is supposed to be stopped, and a getPresentValue method to retrieve the current value.