kopia lustrzana https://github.com/weetmuts/wmbusmeters
216 wiersze
6.8 KiB
C++
216 wiersze
6.8 KiB
C++
/*
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Copyright (C) 2017-2020 Fredrik Öhrström
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include"dvparser.h"
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#include"meters.h"
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#include"meters_common_implementation.h"
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#include"wmbus.h"
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#include"wmbus_utils.h"
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using namespace std;
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struct MeterApator162 : public virtual WaterMeter, public virtual MeterCommonImplementation {
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MeterApator162(MeterInfo &mi);
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// Total water counted through the meter
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double totalWaterConsumption(Unit u);
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bool hasTotalWaterConsumption();
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private:
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void processContent(Telegram *t);
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void processExtras(string miExtras);
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double total_water_consumption_m3_ {};
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unsigned short offset_ = 0;
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};
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shared_ptr<WaterMeter> createApator162(MeterInfo &mi)
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{
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return shared_ptr<WaterMeter>(new MeterApator162(mi));
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}
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MeterApator162::MeterApator162(MeterInfo &mi) :
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MeterCommonImplementation(mi, MeterDriver::APATOR162)
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{
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processExtras(mi.extras);
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setExpectedTPLSecurityMode(TPLSecurityMode::AES_CBC_IV);
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addLinkMode(LinkMode::T1);
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addLinkMode(LinkMode::C1);
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addPrint("total", Quantity::Volume,
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[&](Unit u){ return totalWaterConsumption(u); },
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"The total water consumption recorded by this meter.",
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true, true);
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}
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void MeterApator162::processExtras(string miExtras)
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{
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map<string,string> extras;
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bool ok = parseExtras(miExtras, &extras);
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if (!ok)
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{
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error("(apator162) invalid extra parameters (%s)\n", miExtras.c_str());
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}
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if (extras.size() > 0)
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{
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if (extras.count("offset") > 0)
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{
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try {
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offset_ = stoi(extras["offset"]);
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}
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catch (const std::invalid_argument &e) {
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error("(apator162) invalid extra parameters offset (%s)\n", extras["offset"].c_str());
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}
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catch (const std::out_of_range &e) {
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error("(apator162) out of range extra parameters offset (%s)\n", extras["offset"].c_str());
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}
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}
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}
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}
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double MeterApator162::totalWaterConsumption(Unit u)
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{
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assertQuantity(u, Quantity::Volume);
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return convert(total_water_consumption_m3_, Unit::M3, u);
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}
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bool MeterApator162::hasTotalWaterConsumption()
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{
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return true;
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}
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void MeterApator162::processContent(Telegram *t)
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{
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// Unfortunately, the at-wmbus-16-2 is mostly a proprietary protocol
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// simple wrapped inside a wmbus telegram. Naughty!
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vector<uchar> content;
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t->extractPayload(&content);
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map<string,pair<int,DVEntry>> vendor_values;
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string total;
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// Current assumption of this proprietary protocol is that byte 13 tells
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// us where the current total water consumption is located.
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int o = 0;
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if (offset_ > 0) {
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o = offset_;
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strprintf(total, "%02x%02x%02x%02x", content[o], content[o+1], content[o+2], content[o+3]);
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debug("(apator162) using offset from the configuration (offset=%d) that results with total value: %s\n", o, total.c_str());
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}
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else {
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uchar guess10 = content[10];
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uchar guess11 = content[11];
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uchar guess12 = content[12];
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if ((guess11 & 0x84) == 0x84)
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{
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o = 23;
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}
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else
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if ((guess11 & 0x83) == 0x83)
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{
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o = 23;
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}
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else
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if ((guess11 & 0x81) == 0x81)
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{
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if (guess10 == 02)
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{
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o = 23;
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}
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else
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{
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o = 20;
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}
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}
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else
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if ((guess11 & 0x40) == 0x40)
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{
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o = 20;
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}
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else
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if ((guess11 & 0x10) == 0x10)
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{
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o = 12;
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}
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else
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if ((guess11 & 0x01) == 0x01)
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{
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o = 9;
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}
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else
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{
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warning("(apator162) Unknown value in proprietary(unknown) apator162 protocol. Ignoring telegram. Found 0x%02x expected bit 0x01, 0x10, 0x40 or 0x80 to be set.\n", guess11);
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return;
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}
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uint32_t o9 = content[9] | content[9+1] <<8 | content[9+2] << 16 | content[9+3] << 24;
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uint32_t o12 = content[12] | content[12+1] <<8 | content[12+2] << 16 | content[12+3] << 24;
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uint32_t o20 = content[20] | content[20+1] <<8 | content[20+2] << 16 | content[20+3] << 24;
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uint32_t o23 = content[23] | content[23+1] <<8 | content[23+2] << 16 | content[23+3] << 24;
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uint32_t guess = content[o] | content[o+1] <<8 | content[o+2] << 16 | content[o+3] << 24;
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strprintf(total, "%02x%02x%02x%02x", content[o], content[o+1], content[o+2], content[o+3]);
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debug("(apator162) Guessing offset to be %d from byte >10=%02x 11=%02x 12=%02x<: total %s\n",
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o, guess10, guess11, guess12, total.c_str());
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debug("(apator162) other potential values o9=%u o12=%u o20=%u o23=%u guess=%u\n", o9, o12, o20, o23, guess);
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// Ok, the guess might not good enough. Lets do a sanity check and revert to another offset
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// that has a reasonable value.....at least it should be less than 58400000 liters.....why?
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// Let us assume a 16 year lifetime of the apator meter, 10 m3 per day for 16 years = 16*365*10000 = 58400000
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#define MAX 58400000
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if (guess > MAX)
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{
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if (o9 < MAX)
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{
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o = 9;
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}
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else if (o12 < MAX)
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{
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o = 12;
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}
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else if (o20 < MAX)
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{
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o = 20;
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}
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else if (o23 < MAX)
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{
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o = 23;
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}
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strprintf(total, "%02x%02x%02x%02x", content[o], content[o+1], content[o+2], content[o+3]);
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debug("(apator162) adjusting to offset %d instead\n", o);
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}
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}
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vendor_values["0413"] = { 25, DVEntry(MeasurementType::Instantaneous, 0x13, 0, 0, 0, total) };
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int offset;
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string key;
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if(findKey(MeasurementType::Unknown, ValueInformation::Volume, 0, 0, &key, &vendor_values))
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{
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extractDVdouble(&vendor_values, key, &offset, &total_water_consumption_m3_);
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//Adding explanation have to wait since it assumes that the dvparser could do something, but it could not here.
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//t->addMoreExplanation(offset, " total consumption (%f m3)", total_water_consumption_m3_);
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}
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}
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