3c8b8d4427
this change utilizes some of the features from library "frozen", which was included upstream for the grid profile parser. to improve code maintainability, a couple of std::maps mapping strings to values or the other way around were introduced in OpenDTU-OnBattery-specific code at the expense of some flash and computing overhead. library "frozen" offers constexpr versions of map and string, which saves initialization code and offers slightly faster lookups. this brings the binary size down by ~25kB and should provide a small performance improvement at runtime.
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
#pragma once
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#include <Arduino.h>
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#include "VeDirectFrameHandler.h"
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template<typename T, size_t WINDOW_SIZE>
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class MovingAverage {
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public:
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MovingAverage()
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: _sum(0)
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, _index(0)
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, _count(0) { }
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void addNumber(T num) {
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if (_count < WINDOW_SIZE) {
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_count++;
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} else {
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_sum -= _window[_index];
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}
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_window[_index] = num;
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_sum += num;
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_index = (_index + 1) % WINDOW_SIZE;
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}
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double getAverage() const {
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if (_count == 0) { return 0.0; }
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return static_cast<double>(_sum) / _count;
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}
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private:
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std::array<T, WINDOW_SIZE> _window;
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T _sum;
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size_t _index;
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size_t _count;
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};
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class VeDirectMpptController : public VeDirectFrameHandler {
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public:
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VeDirectMpptController() = default;
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void init(int8_t rx, int8_t tx, Print* msgOut, bool verboseLogging);
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bool isDataValid() const; // return true if data valid and not outdated
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struct veMpptStruct : veStruct {
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uint8_t MPPT; // state of MPP tracker
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int32_t PPV; // panel power in W
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int32_t P; // battery output power in W (calculated)
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double VPV; // panel voltage in V
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double IPV; // panel current in A (calculated)
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bool LOAD; // virtual load output state (on if battery voltage reaches upper limit, off if battery reaches lower limit)
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uint8_t CS; // current state of operation e. g. OFF or Bulk
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uint8_t ERR; // error code
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uint32_t OR; // off reason
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uint32_t HSDS; // day sequence number 1...365
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double H19; // yield total kWh
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double H20; // yield today kWh
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int32_t H21; // maximum power today W
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double H22; // yield yesterday kWh
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int32_t H23; // maximum power yesterday W
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frozen::string const& getMpptAsString() const; // state of mppt as string
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frozen::string const& getCsAsString() const; // current state as string
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frozen::string const& getErrAsString() const; // error state as string
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frozen::string const& getOrAsString() const; // off reason as string
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};
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using spData_t = std::shared_ptr<veMpptStruct const>;
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spData_t getData() const { return _spData; }
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private:
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void textRxEvent(char* name, char* value) final;
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void frameValidEvent() final;
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spData_t _spData = nullptr;
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veMpptStruct _tmpFrame{}; // private struct for received name and value pairs
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MovingAverage<double, 5> _efficiency;
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};
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