wmbusmeters/src/meter_vario451.cc

127 wiersze
4.0 KiB
C++

/*
Copyright (C) 2019-2020 Fredrik Öhrström
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include"dvparser.h"
#include"meters.h"
#include"meters_common_implementation.h"
#include"wmbus.h"
#include"wmbus_utils.h"
#include"units.h"
#include"util.h"
struct MeterVario451 : public virtual HeatMeter, public virtual MeterCommonImplementation
{
MeterVario451(MeterInfo &mi);
double totalEnergyConsumption(Unit u);
double currentPeriodEnergyConsumption(Unit u);
double previousPeriodEnergyConsumption(Unit u);
private:
void processContent(Telegram *t);
double total_energy_gj_ {};
double curr_energy_gj_ {};
double prev_energy_gj_ {};
};
shared_ptr<HeatMeter> createVario451(MeterInfo &mi)
{
return shared_ptr<HeatMeter>(new MeterVario451(mi));
}
MeterVario451::MeterVario451(MeterInfo &mi) :
MeterCommonImplementation(mi, MeterDriver::VARIO451)
{
// media 0x04 C telegrams
// media 0xC3 T telegrams
addLinkMode(LinkMode::C1);
addLinkMode(LinkMode::T1);
addPrint("total", Quantity::Energy,
[&](Unit u){ return totalEnergyConsumption(u); },
"The total energy consumption recorded by this meter.",
true, true);
addPrint("current", Quantity::Energy,
[&](Unit u){ return currentPeriodEnergyConsumption(u); },
"Energy consumption so far in this billing period.",
true, true);
addPrint("previous", Quantity::Energy,
[&](Unit u){ return previousPeriodEnergyConsumption(u); },
"Energy consumption in previous billing period.",
true, true);
}
double MeterVario451::totalEnergyConsumption(Unit u)
{
assertQuantity(u, Quantity::Energy);
return convert(total_energy_gj_, Unit::GJ, u);
}
double MeterVario451::currentPeriodEnergyConsumption(Unit u)
{
assertQuantity(u, Quantity::Energy);
return convert(curr_energy_gj_, Unit::GJ, u);
}
double MeterVario451::previousPeriodEnergyConsumption(Unit u)
{
assertQuantity(u, Quantity::Energy);
return convert(prev_energy_gj_, Unit::GJ, u);
}
void MeterVario451::processContent(Telegram *t)
{
// Unfortunately, the Techem Vario 4 Typ 4.5.1 is mostly a proprieatary protocol
// simple wrapped inside a wmbus telegram since the ci-field is 0xa2.
// Which means that the entire payload is manufacturer specific.
map<string,pair<int,DVEntry>> vendor_values;
vector<uchar> content;
t->extractPayload(&content);
uchar prev_lo = content[3];
uchar prev_hi = content[4];
double prev = (256.0*prev_hi+prev_lo)/1000;
string prevs;
strprintf(prevs, "%02x%02x", prev_lo, prev_hi);
int offset = t->parsed.size()+3;
vendor_values["0215"] = { offset, DVEntry(MeasurementType::Instantaneous, 0x15, 0, 0, 0, prevs) };
t->explanations.push_back({ offset, prevs });
t->addMoreExplanation(offset, " energy used in previous billing period (%f GJ)", prev);
uchar curr_lo = content[7];
uchar curr_hi = content[8];
double curr = (256.0*curr_hi+curr_lo)/1000;
string currs;
strprintf(currs, "%02x%02x", curr_lo, curr_hi);
offset = t->parsed.size()+7;
vendor_values["0215"] = { offset, DVEntry(MeasurementType::Instantaneous, 0x15, 0, 0, 0, currs) };
t->explanations.push_back({ offset, currs });
t->addMoreExplanation(offset, " energy used in current billing period (%f GJ)", curr);
total_energy_gj_ = prev+curr;
curr_energy_gj_ = curr;
prev_energy_gj_ = prev;
}