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main.cpp
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main.cpp
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#ifdef _WIN32
#include <Winsock2.h>
#include <Ws2tcpip.h>
#else
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include <LocalHost.hpp>
#include <AddressConversion.hpp>
#include <Logger.hpp>
#include <SpeedwireSocketFactory.hpp>
#include <SpeedwireHeader.hpp>
#include <SpeedwireEmeterProtocol.hpp>
#include <ObisData.hpp>
using namespace libspeedwire;
static void* insert(SpeedwireEmeterProtocol& emeter_packet, void* const obis, const ObisData& obis_data, const double value);
static void* insert(SpeedwireEmeterProtocol& emeter_packet, void* const obis, const ObisData& obis_data, const std::string& value);
class LogListener : public ILogListener {
public:
virtual ~LogListener() {}
virtual void log_msg(const std::string& msg, const LogLevel& level) {
fprintf(stdout, "%s", msg.c_str());
}
virtual void log_msg_w(const std::wstring& msg, const LogLevel& level) {
fprintf(stdout, "%ls", msg.c_str());
}
};
static Logger logger("main");
int main(int argc, char** argv) {
// configure logger and logging levels
ILogListener* log_listener = new LogListener();
LogLevel log_level = LogLevel::LOG_ERROR | LogLevel::LOG_WARNING;
log_level = log_level | LogLevel::LOG_INFO_0;
log_level = log_level | LogLevel::LOG_INFO_1;
log_level = log_level | LogLevel::LOG_INFO_2;
log_level = log_level | LogLevel::LOG_INFO_3;
Logger::setLogListener(log_listener, log_level);
// configure sockets; use unicast socket to avoid messing around with igmp issues
LocalHost &localhost = LocalHost::getInstance();
SpeedwireSocketFactory *socket_factory = SpeedwireSocketFactory::getInstance(localhost, SpeedwireSocketFactory::SocketStrategy::ONE_UNICAST_SOCKET_FOR_EACH_INTERFACE);
// define speedwire packet and initialize header
uint8_t udp_packet[600];
SpeedwireHeader speedwire_packet(udp_packet, sizeof(udp_packet));
speedwire_packet.setDefaultHeader(1, 580, SpeedwireHeader::sma_emeter_protocol_id);
SpeedwireEmeterProtocol emeter_packet(speedwire_packet);
emeter_packet.setSusyID(349);
emeter_packet.setSerialNumber(1901567274);
emeter_packet.setTime((uint32_t)localhost.getUnixEpochTimeInMs());
// insert all measurements available in an sma emeter packet into udp packet payload;
// they are inserted in the same order as they are generated by an sme emeter device;
// the order is important, as most open source projects do not parse obis elements
// but rather assume information at a given byte offset inside the udp packet.
void* obis = emeter_packet.getFirstObisElement();
// totals
obis = insert(emeter_packet, obis, ObisData::PositiveActivePowerTotal, 121.60);
obis = insert(emeter_packet, obis, ObisData::PositiveActiveEnergyTotal, 1320.34);
obis = insert(emeter_packet, obis, ObisData::NegativeActivePowerTotal, 0.00);
obis = insert(emeter_packet, obis, ObisData::NegativeActiveEnergyTotal, 305.03);
obis = insert(emeter_packet, obis, ObisData::PositiveReactivePowerTotal, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveReactiveEnergyTotal, 5.90);
obis = insert(emeter_packet, obis, ObisData::NegativeReactivePowerTotal, 188.90);
obis = insert(emeter_packet, obis, ObisData::NegativeReactiveEnergyTotal, 949.68);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentPowerTotal, 224.60);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentEnergyTotal, 1757.41);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentPowerTotal, 0.00);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentEnergyTotal, 327.62);
obis = insert(emeter_packet, obis, ObisData::PowerFactorTotal, 0.54);
// line 1
obis = insert(emeter_packet, obis, ObisData::PositiveActivePowerL1, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveActiveEnergyL1, 337.53);
obis = insert(emeter_packet, obis, ObisData::NegativeActivePowerL1, 21.70);
obis = insert(emeter_packet, obis, ObisData::NegativeActiveEnergyL1, 141.54);
obis = insert(emeter_packet, obis, ObisData::PositiveReactivePowerL1, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveReactiveEnergyL1, 2.48);
obis = insert(emeter_packet, obis, ObisData::NegativeReactivePowerL1, 22.30);
obis = insert(emeter_packet, obis, ObisData::NegativeReactiveEnergyL1, 176.48);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentPowerL1, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentEnergyL1, 473.68);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentPowerL1, 31.10);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentEnergyL1, 144.26);
obis = insert(emeter_packet, obis, ObisData::CurrentL1, 0.18);
obis = insert(emeter_packet, obis, ObisData::VoltageL1, 231.97);
obis = insert(emeter_packet, obis, ObisData::PowerFactorL1, 0.70);
// line 2
obis = insert(emeter_packet, obis, ObisData::PositiveActivePowerL2, 160.80);
obis = insert(emeter_packet, obis, ObisData::PositiveActiveEnergyL2, 775.23);
obis = insert(emeter_packet, obis, ObisData::NegativeActivePowerL2, 0.00);
obis = insert(emeter_packet, obis, ObisData::NegativeActiveEnergyL2, 77.80);
obis = insert(emeter_packet, obis, ObisData::PositiveReactivePowerL2, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveReactiveEnergyL2, 7.38);
obis = insert(emeter_packet, obis, ObisData::NegativeReactivePowerL2, 126.00);
obis = insert(emeter_packet, obis, ObisData::NegativeReactiveEnergyL2, 535.19);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentPowerL2, 204.30);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentEnergyL2, 974.19);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentPowerL2, 0.00);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentEnergyL2, 89.10);
obis = insert(emeter_packet, obis, ObisData::CurrentL2, 1.12);
obis = insert(emeter_packet, obis, ObisData::VoltageL2, 230.66);
obis = insert(emeter_packet, obis, ObisData::PowerFactorL2, 0.79);
// line 3
obis = insert(emeter_packet, obis, ObisData::PositiveActivePowerL3, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveActiveEnergyL3, 271.21);
obis = insert(emeter_packet, obis, ObisData::NegativeActivePowerL3, 17.60);
obis = insert(emeter_packet, obis, ObisData::NegativeActiveEnergyL3, 149.31);
obis = insert(emeter_packet, obis, ObisData::PositiveReactivePowerL3, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveReactiveEnergyL3, 1.70);
obis = insert(emeter_packet, obis, ObisData::NegativeReactivePowerL3, 40.66);
obis = insert(emeter_packet, obis, ObisData::NegativeReactiveEnergyL3, 243.67);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentPowerL3, 0.00);
obis = insert(emeter_packet, obis, ObisData::PositiveApparentEnergyL3, 434.62);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentPowerL3, 44.30);
obis = insert(emeter_packet, obis, ObisData::NegativeApparentEnergyL3, 156.83);
obis = insert(emeter_packet, obis, ObisData::CurrentL3, 0.23);
obis = insert(emeter_packet, obis, ObisData::VoltageL3, 230.09);
obis = insert(emeter_packet, obis, ObisData::PowerFactorL3, 0.40);
// software version
obis = insert(emeter_packet, obis, ObisData::SoftwareVersion, "2.0.18.82");
obis = insert(emeter_packet, obis, ObisData::EndOfData, "");
// check if the packet is fully assembled
if (((uint8_t*)obis - udp_packet) != sizeof(udp_packet)) {
logger.print(LogLevel::LOG_ERROR, "invalid udp packet size %lu\n", (unsigned long)((uint8_t*)obis - udp_packet));
}
#if 1
// for debugging purposes
SpeedwireHeader protocol(udp_packet, sizeof(udp_packet));
bool valid = protocol.checkHeader();
if (valid) {
uint32_t group = protocol.getGroup();
uint16_t length = protocol.getLength();
uint16_t protocolID = protocol.getProtocolID();
int offset = protocol.getPayloadOffset();
if (protocolID == SpeedwireHeader::sma_emeter_protocol_id) {
SpeedwireEmeterProtocol emeter(protocol);
uint16_t susyid = emeter.getSusyID();
uint32_t serial = emeter.getSerialNumber();
uint32_t timer = emeter.getTime();
// extract obis data from the emeter packet and print each obis element
void* obis = emeter.getFirstObisElement();
while (obis != NULL) {
//emeter.printObisElement(obis, stderr);
logger.print(LogLevel::LOG_INFO_2, "%s %s %s", SpeedwireEmeterProtocol::toHeaderString(obis).c_str(), SpeedwireEmeterProtocol::toValueString(obis, true).c_str(), SpeedwireEmeterProtocol::toValueString(obis, false).c_str());
obis = emeter.getNextObisElement(obis);
}
}
}
#endif
//
// main loop
//
while (true) {
// update timer
uint32_t current_time = (uint32_t)localhost.getUnixEpochTimeInMs();
emeter_packet.setTime(current_time);
// send speedwire emeter packet to all local interfaces
const std::vector<std::string>& localIPs = localhost.getLocalIPv4Addresses();
for (auto& local_ip_addr : localIPs) {
SpeedwireSocket& socket = socket_factory->getSendSocket(SpeedwireSocketFactory::SocketType::UNICAST, local_ip_addr);
logger.print(LogLevel::LOG_INFO_0, "broadcast sma emeter packet to %s (via interface %s)\n", AddressConversion::toString(socket.getSpeedwireMulticastIn4Address()).c_str(), socket.getLocalInterfaceAddress().c_str());
int nbytes = socket.send(udp_packet, sizeof(udp_packet));
if (nbytes != sizeof(udp_packet)) {
logger.print(LogLevel::LOG_ERROR, "cannot send udp packet %d\n", nbytes);
}
}
// sleep for 1000 milliseconds
LocalHost::sleep(1000);
}
return 0;
}
// insert obis data into the given emeter packet
void* insert(SpeedwireEmeterProtocol& emeter_packet, void* const obis, const ObisData& obis_data, const double value) {
// create a new obis data instance from the given obis data template instance
ObisData temp(obis_data);
// set its measurement value
temp.measurementValues.addMeasurement(value, 0);
// convert it into the obis byte representation
std::array<uint8_t, 12> byte_array = temp.toByteArray();
// insert it into the given emeter packet
return emeter_packet.setObisElement(obis, byte_array.data());
}
// insert obis data into the given emeter packet
void* insert(SpeedwireEmeterProtocol& emeter_packet, void* const obis, const ObisData& obis_data, const std::string& value) {
// create a new obis data instance from the given obis data template instance
ObisData temp(obis_data);
// set its measurement value
temp.measurementValues.value_string = value;
// convert it into the obis byte representation
std::array<uint8_t, 12> byte_array = temp.toByteArray();
// insert it into the given emeter packet
return emeter_packet.setObisElement(obis, byte_array.data());
}