60 lines
2.0 KiB
Markdown
60 lines
2.0 KiB
Markdown
# ITC Pressure Optimizer
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Optimize the pressure setpoint on a Mercury ITC depending on temperature parameters read from the (same) Mercury ITC.
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Pressures are calculated as a function of temperature setpoint, actual temperature, heater power, and currently set pressure.
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This driver is a port of mitcpresscio.c, with an event
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# Preview
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# Download
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```bash
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$ git clone ....
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```
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# Compile
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```bash
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$ cmake -B build
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$ cmake --build build
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```
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# Run
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```bash
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$ $pwd/build/itcPressureOptimizer <frontend_name> <equipment_name>
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```
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# Configuration
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In ```/Equipment/<name>/Settings/Devices/MITCPRESSC/DD/```, you can modify settings regarding where to read/write values to the equipment.
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Default values are :
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| Equipment | variox0 | heliox0 |
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|-----------|---------|---------|
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| Output Pressure SetPoint Index | 3 (0x3) | 8 (0x8) |
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| Input SetPoint Index | 1 (0x1) | 1 (0x1) |
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| Input Temperature Index | 0 (0x0) | 0 (0x0) |
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| Input Power Index | 10 (0xA) | 8 (0x8) |
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| Average Power Time Window | 30f | 30f |
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*NOTE: OutputPressSPIndex and InputVarioxPowIndex are different for variox0
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and heliox0*
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# Usage
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In ```/Equipment/<name>/Variables/Demand``` you can specify demand to the equipment. See **Preview**
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# Project structure
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This is the execution flow graph.
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All dotted lines represent data and execution flow going through the EventBus (Broker) with the publish / subscribe method.
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For cleaner code, all execution and data flow pass through an EventBus. Objects can subscribe to one or many specific event types. They can also publish an event, which will be dispatched to all subscribers by invoking their callbacks.
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`OdbHotlink` triggers the execution flow whenever a value changes. Only `DemandHandler` and `InputHandler` are registered.
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`itc_pressure_optimizer` instantiates all components and publishes an `InitEvent` first, allowing all handlers to initialize and connect to the ODB. It also periodically publishes a `PollEvent` every second to update time-dependent averages. |