WATTECO - Remote Temperature 2 Sensors

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/* * JavaScript implementation of brUncompress. */ // {{{ Constants var ST_UNDEF = 0 var ST_BL = 1 var ST_U4 = 2 var ST_I4 = 3 var ST_U8 = 4 var ST_I8 = 5 var ST_U16 = 6 var ST_I16 = 7 var ST_U24 = 8 var ST_I24 = 9 var ST_U32 = 10 var ST_I32 = 11 var ST_FL = 12 var ST = {} ST[ST_UNDEF] = 0 ST[ST_BL] = 1 ST[ST_U4] = 4 ST[ST_I4] = 4 ST[ST_U8] = 8 ST[ST_I8] = 8 ST[ST_U16] = 16 ST[ST_I16] = 16 ST[ST_U24] = 24 ST[ST_I24] = 24 ST[ST_U32] = 32 ST[ST_I32] = 32 ST[ST_FL] = 32 var BR_HUFF_MAX_INDEX_TABLE = 14 var NUMBER_OF_SERIES = 16 var HUFF = [ [ { sz: 2, lbl: 0x000 }, { sz: 2, lbl: 0x001 }, { sz: 2, lbl: 0x003 }, { sz: 3, lbl: 0x005 }, { sz: 4, lbl: 0x009 }, { sz: 5, lbl: 0x011 }, { sz: 6, lbl: 0x021 }, { sz: 7, lbl: 0x041 }, { sz: 8, lbl: 0x081 }, { sz: 10, lbl: 0x200 }, { sz: 11, lbl: 0x402 }, { sz: 11, lbl: 0x403 }, { sz: 11, lbl: 0x404 }, { sz: 11, lbl: 0x405 }, { sz: 11, lbl: 0x406 }, { sz: 11, lbl: 0x407 } ], [ { sz: 7, lbl: 0x06f }, { sz: 5, lbl: 0x01a }, { sz: 4, lbl: 0x00c }, { sz: 3, lbl: 0x003 }, { sz: 3, lbl: 0x007 }, { sz: 2, lbl: 0x002 }, { sz: 2, lbl: 0x000 }, { sz: 3, lbl: 0x002 }, { sz: 6, lbl: 0x036 }, { sz: 9, lbl: 0x1bb }, { sz: 9, lbl: 0x1b9 }, { sz: 10, lbl: 0x375 }, { sz: 10, lbl: 0x374 }, { sz: 10, lbl: 0x370 }, { sz: 11, lbl: 0x6e3 }, { sz: 11, lbl: 0x6e2 } ], [ { sz: 4, lbl: 0x009 }, { sz: 3, lbl: 0x005 }, { sz: 2, lbl: 0x000 }, { sz: 2, lbl: 0x001 }, { sz: 2, lbl: 0x003 }, { sz: 5, lbl: 0x011 }, { sz: 6, lbl: 0x021 }, { sz: 7, lbl: 0x041 }, { sz: 8, lbl: 0x081 }, { sz: 10, lbl: 0x200 }, { sz: 11, lbl: 0x402 }, { sz: 11, lbl: 0x403 }, { sz: 11, lbl: 0x404 }, { sz: 11, lbl: 0x405 }, { sz: 11, lbl: 0x406 }, { sz: 11, lbl: 0x407 } ] ] // }}} // {{{ Polyfills Math.trunc = Math.trunc || function(x) { if (isNaN(x)) { return NaN } if (x > 0) { return Math.floor(x) } return Math.ceil(x) } // }}} /** * brUncompress main function */ function brUncompress(tagsz, argList, hexString, batch_absolute_timestamp) { var out = initResult() var buffer = createBuffer(parseHexString(hexString)) var flag = generateFlag(buffer.getNextSample(ST_U8)) out.batch_counter = buffer.getNextSample(ST_U8, 3) buffer.getNextSample(ST_U8, 1) var temp = prePopulateOutput(out, buffer, argList, flag, tagsz) var last_timestamp = temp.last_timestamp var index_of_the_first_sample = temp.index_of_the_first_sample if (flag.hasSample) { last_timestamp = uncompressSamplesData( out, buffer, index_of_the_first_sample, argList, last_timestamp, flag, tagsz ) } out.batch_relative_timestamp = extractTimestampFromBuffer( buffer, last_timestamp ) return adaptToExpectedFormat(out, argList, batch_absolute_timestamp) } /////////////// Sub functions /////////////// /** * Init br_uncompress result data structure */ function initResult() { var series = [], i = 0 while (i < NUMBER_OF_SERIES) { series.push({ codingType: 0, codingTable: 0, resolution: null, uncompressSamples: [] }) i += 1 } return { batch_counter: 0, batch_relative_timestamp: 0, series: series } } /** * Function to create a buffer from a byteArray. Allow to read sample from the * byteArray to extract data. */ function createBuffer(byteArray) { /** * Retrieve the pattern for HUFF table lookup */ function bitsBuf2HuffPattern(byteArray, index, nb_bits) { var sourceBitStart = index var sz = nb_bits - 1 if (byteArray.length * 8 < sourceBitStart + nb_bits) { throw "Verify that dest buf is large enough" } var bittoread = 0 var pattern = 0 while (nb_bits > 0) { if (byteArray[sourceBitStart >> 3] & (1 << (sourceBitStart & 0x07))) { pattern |= 1 << (sz - bittoread) } nb_bits-- bittoread++ sourceBitStart++ } return pattern } return { index: 0, byteArray: byteArray, getNextSample: function(sampleType, nbBitsInput) { var nbBits = nbBitsInput || ST[sampleType] var sourceBitStart = this.index this.index += nbBits if (sampleType === ST_FL && nbBits !== 32) { throw "Mauvais sampletype" } var u32 = 0 var nbytes = Math.trunc((nbBits - 1) / 8) + 1 var nbitsfrombyte = nbBits % 8 if (nbitsfrombyte === 0 && nbytes > 0) { nbitsfrombyte = 8 } while (nbytes > 0) { var bittoread = 0 while (nbitsfrombyte > 0) { var idx = sourceBitStart >> 3 if (this.byteArray[idx] & (1 << (sourceBitStart & 0x07))) { u32 |= 1 << ((nbytes - 1) * 8 + bittoread) } nbitsfrombyte-- bittoread++ sourceBitStart += 1 } nbytes-- nbitsfrombyte = 8 } // Propagate the sign bit if 1 if ( (sampleType == ST_I4 || sampleType == ST_I8 ||sampleType == ST_I16 || sampleType == ST_I24) && u32 & (1 << (nbBits - 1)) ) { for (var i = nbBits; i < 32; i++) { u32 |= 1 << i nbBits++ } } return u32 }, /** * Extract sz and bi from Huff table */ getNextBifromHi: function(huff_coding) { for (var i = 2; i < 12; i++) { var lhuff = bitsBuf2HuffPattern(this.byteArray, this.index, i) for (var j = 0; j < HUFF[huff_coding].length; j++) { if ( HUFF[huff_coding][j].sz == i && lhuff == HUFF[huff_coding][j].lbl ) { this.index += i return j } } } throw "Bi not found in HUFF table" } } } /** * Convert the hex string given as parameter to a ByteArray */ function parseHexString(str) { str = str .split("") .filter(function(x) { return !isNaN(parseInt(x, 16)) }) .join("") var result = [] while (str.length >= 2) { result.push(parseInt(str.substring(0, 2), 16)) str = str.substring(2, str.length) } return result } /** * Generate a flag object from an integer value. */ function generateFlag(flagAsInt) { var binbase = flagAsInt.toString(2) // leftpad while (binbase.length < 8) { binbase = "0" + binbase } return { isCommonTimestamp: parseInt(binbase[binbase.length - 2], 2), hasSample: !parseInt(binbase[binbase.length - 3], 2), batch_req: parseInt(binbase[binbase.length - 4], 2), nb_of_type_measure: parseInt(binbase.substring(0, 4), 2) } } /** * Prepopulate output with relative timestamp and measure of the first sample * for each series. */ function prePopulateOutput(out, buffer, argList, flag, tagsz) { var currentTimestamp = 0 var index_of_the_first_sample = 0 for (var i = 0; i < flag.nb_of_type_measure; i++) { var tag = { size: tagsz, lbl: buffer.getNextSample(ST_U8, tagsz) } var sampleIndex = findIndexFromArgList(argList, tag) if (i == 0) { index_of_the_first_sample = sampleIndex } currentTimestamp = extractTimestampFromBuffer(buffer, currentTimestamp) out.series[sampleIndex] = computeSeries( buffer, argList[sampleIndex].sampletype, tag.lbl, currentTimestamp ) if (flag.hasSample) { out.series[sampleIndex].codingType = buffer.getNextSample(ST_U8, 2) out.series[sampleIndex].codingTable = buffer.getNextSample(ST_U8, 2) } } return { last_timestamp: currentTimestamp, index_of_the_first_sample: index_of_the_first_sample } } /** * Initialize next series from buffer */ function computeSeries(buffer, sampletype, label, currentTimestamp) { return { uncompressSamples: [ { data_relative_timestamp: currentTimestamp, data: { value: getMeasure(buffer, sampletype), label: label } } ], codingType: 0, codingTable: 0, resolution: null } } /** * Return the index of tag lbl in the argument list */ function findIndexFromArgList(argList, tag) { for (var i = 0; i < argList.length; i++) { if (argList[i].taglbl === tag.lbl) { return i } } throw "Cannot find index in argList" } /** * Extract a new time stamp using Huff table, optionnaly from a baseTimestamp */ function extractTimestampFromBuffer(buffer, baseTimestamp) { if (baseTimestamp) { var bi = buffer.getNextBifromHi(1) return computeTimestampFromBi(buffer, baseTimestamp, bi) } return buffer.getNextSample(ST_U32) } /** * Compute a new timestamp from a previous one, regarding bi value */ function computeTimestampFromBi(buffer, baseTimestamp, bi) { if (bi > BR_HUFF_MAX_INDEX_TABLE) { return buffer.getNextSample(ST_U32) } if (bi > 0) { return computeTimestampFromPositiveBi(buffer, baseTimestamp, bi) } return baseTimestamp } /** * Compute a new timestamp from a previous one, regarding posotive bi value */ function computeTimestampFromPositiveBi(buffer, baseTimestamp, bi) { return buffer.getNextSample(ST_U32, bi) + baseTimestamp + Math.pow(2, bi) - 1 } /** * Extract the measure from the buffer, handling float case */ function getMeasure(buffer, sampletype) { var v = buffer.getNextSample(sampletype) return sampletype === ST_FL ? Bytes2Float32(v) : v } /** * Uncompress samples data presenting common timestamp or separate timestamp */ function uncompressSamplesData( out, buffer, index_of_the_first_sample, argList, last_timestamp, flag, tagsz ) { if (flag.isCommonTimestamp) { return handleCommonTimestamp( out, buffer, index_of_the_first_sample, argList, flag, tagsz ) } return handleSeparateTimestamp( out, buffer, argList, last_timestamp, flag, tagsz ) } /** * Uncompress data in case of common timestamp */ function handleCommonTimestamp( out, buffer, index_of_the_first_sample, argList, flag, tagsz ) { //number of sample var nb_sample_to_parse = buffer.getNextSample(ST_U8, 8) var tag = {} var temp = initTimestampCommonTable( out, buffer, nb_sample_to_parse, index_of_the_first_sample ) var timestampCommon = temp.timestampCommon var lastTimestamp = temp.lastTimestamp for (var j = 0; j < flag.nb_of_type_measure; j++) { var first_null_delta_value = 1 tag.lbl = buffer.getNextSample(ST_U8, tagsz) var sampleIndex = findIndexFromArgList(argList, tag) for (var i = 0; i < nb_sample_to_parse; i++) { //Available bit var available = buffer.getNextSample(ST_U8, 1) if (available) { //Delta value var bi = buffer.getNextBifromHi(out.series[sampleIndex].codingTable) var currentMeasure = { data_relative_timestamp: 0, data: {} } if (bi <= BR_HUFF_MAX_INDEX_TABLE) { var precedingValue = out.series[sampleIndex].uncompressSamples[ out.series[sampleIndex].uncompressSamples.length - 1 ].data.value if (bi > 0) { currentMeasure.data.value = completeCurrentMeasure( buffer, precedingValue, out.series[sampleIndex].codingType, argList[sampleIndex].resol, bi ) } else { // (bi <= 0) if (first_null_delta_value) { // First value is yet recorded starting from the header first_null_delta_value = 0 continue } else { currentMeasure.data.value = precedingValue } } } else { // bi > BR_HUFF_MAX_INDEX_TABLE currentMeasure.data.value = buffer.getNextSample( argList[sampleIndex].sampletype ) } currentMeasure.data_relative_timestamp = timestampCommon[i] out.series[sampleIndex].uncompressSamples.push(currentMeasure) } } } return lastTimestamp } /** * Initialize common timestamp table. Returns the table and last calculated timestamp */ function initTimestampCommonTable( out, buffer, nbSampleToParse, firstSampleIndex ) { var timestampCommon = [] var lastTimestamp = 0 var timestampCoding = buffer.getNextSample(ST_U8, 2) for (var i = 0; i < nbSampleToParse; i++) { //delta timestamp var bi = buffer.getNextBifromHi(timestampCoding) if (bi <= BR_HUFF_MAX_INDEX_TABLE) { if (i == 0) { timestampCommon.push( out.series[firstSampleIndex].uncompressSamples[0] .data_relative_timestamp ) } else { if (bi > 0) { var precedingTimestamp = timestampCommon[i - 1] timestampCommon.push( buffer.getNextSample(ST_U32, bi) + precedingTimestamp + Math.pow(2, bi) - 1 ) } else { timestampCommon.push(precedingTimestamp) } } } else { timestampCommon.push(buffer.getNextSample(ST_U32)) } lastTimestamp = timestampCommon[i] } return { timestampCommon: timestampCommon, lastTimestamp: lastTimestamp } } /** * Complete current measure from the preceding one */ function completeCurrentMeasure(buffer, precedingValue, codingType, resol, bi) { var currentValue = buffer.getNextSample(ST_U16, bi) if (codingType === 0) { // ADLC return computeAdlcValue(currentValue, resol, precedingValue, bi) } if (codingType === 1) { // Positive return (currentValue + Math.pow(2, bi) - 1) * resol + precedingValue } // Negative return precedingValue - (currentValue + (Math.pow(2, bi) - 1)) * resol } /** * Return current value in ADLC case */ function computeAdlcValue(currentValue, resol, precedingValue, bi) { if (currentValue >= Math.pow(2, bi - 1)) { return currentValue * resol + precedingValue } return (currentValue + 1 - Math.pow(2, bi)) * resol + precedingValue } /** * Uncompress data in case of separate timestamp */ function handleSeparateTimestamp( out, buffer, argList, last_timestamp, flag, tagsz ) { var tag = {} for (var i = 0; i < flag.nb_of_type_measure; i++) { tag.lbl = buffer.getNextSample(ST_U8, tagsz) var sampleIndex = findIndexFromArgList(argList, tag) var compressSampleNb = buffer.getNextSample(ST_U8, 8) if (compressSampleNb) { var timestampCoding = buffer.getNextSample(ST_U8, 2) for (var j = 0; j < compressSampleNb; j++) { var precedingRelativeTimestamp = out.series[sampleIndex].uncompressSamples[ out.series[sampleIndex].uncompressSamples.length - 1 ].data_relative_timestamp var currentMeasure = { data_relative_timestamp: 0, data: {} } var bi = buffer.getNextBifromHi(timestampCoding) currentMeasure.data_relative_timestamp = computeTimestampFromBi( buffer, precedingRelativeTimestamp, bi ) if (currentMeasure.data_relative_timestamp > last_timestamp) { last_timestamp = currentMeasure.data_relative_timestamp } bi = buffer.getNextBifromHi(out.series[sampleIndex].codingTable) if (bi <= BR_HUFF_MAX_INDEX_TABLE) { var precedingValue = out.series[sampleIndex].uncompressSamples[ out.series[sampleIndex].uncompressSamples.length - 1 ].data.value if (bi > 0) { currentMeasure.data.value = completeCurrentMeasure( buffer, precedingValue, out.series[sampleIndex].codingType, argList[sampleIndex].resol, bi ) } else { // bi <= 0 currentMeasure.data.value = precedingValue } } else { // bi > BR_HUFF_MAX_INDEX_TABLE currentMeasure.data.value = buffer.getNextSample( argList[sampleIndex].sampletype ) } out.series[sampleIndex].uncompressSamples.push(currentMeasure) } } } return last_timestamp } /** * Translate brUncompress output data to expected structure */ function adaptToExpectedFormat(out, argList, batchAbsoluteTimestamp) { var returnedGlobalObject = { //batch_counter: out.batch_counter, //batch_relative_timestamp: out.batch_relative_timestamp } if (batchAbsoluteTimestamp) { returnedGlobalObject.b_ts = batchAbsoluteTimestamp } returnedGlobalObject.datas = out.series.reduce(function( acc, current, index ) { return acc.concat( current.uncompressSamples.map(function(item) { var returned = { //data_relative_timestamp: item.data_relative_timestamp, data: { value: argList[index].divide ? item.data.value / argList[index].divide : item.data.value, } } if (argList[index].lblname) { returned.data.label = argList[index].lblname } if (batchAbsoluteTimestamp) { returned.date = computeDataAbsoluteTimestamp( batchAbsoluteTimestamp, out.batch_relative_timestamp, item.data_relative_timestamp ) } return returned }) ) }, []) return returnedGlobalObject } /** * Compute data absolute timestamp from batch absolute timestamp (bat), batch * relative timestamp (brt) and data relative timestamp (drt) */ function computeDataAbsoluteTimestamp(bat, brt, drt) { return new Date(new Date(bat) - (brt - drt) * 1000).toISOString() } try { module.exports = brUncompress } catch (e) { // when called from nashorn, module.exports is unavailable… } function UintToInt(Uint, Size) { if (Size === 2) { if ((Uint & 0x8000) > 0) { Uint = Uint - 0x10000; } } if (Size === 3) { if ((Uint & 0x800000) > 0) { Uint = Uint - 0x1000000; } } if (Size === 4) { if ((Uint & 0x80000000) > 0) { Uint = Uint - 0x100000000; } } return Uint; } function decimalToHex(d, padding) { var hex = Number(d).toString(16).toUpperCase(); padding = typeof (padding) === "undefined" || padding === null ? padding = 2 : padding; while (hex.length < padding) { hex = "0" + hex; } return "0x" + hex; } function Bytes2Float32(bytes) { var sign = (bytes & 0x80000000) ? -1 : 1; var exponent = ((bytes >> 23) & 0xFF) - 127; var significand = (bytes & ~(-1 << 23)); if (exponent == 128) return sign * ((significand) ? Number.NaN : Number.POSITIVE_INFINITY); if (exponent == -127) { if (significand == 0) return sign * 0.0; exponent = -126; significand /= (1 << 23); } else significand = (significand | (1 << 23)) / (1 << 23); return sign * significand * Math.pow(2, exponent); } function Decoder(bytes, port) { // Decode an uplink message from a buffer // (array) of bytes to an object of fields. var decoded = {}; var decodedBatch = {}; var lora = {}; // decoded.lora.port = port; // Get raw payload var bytes_len_ = bytes.length; var temp_hex_str = "" lora.payload = ""; for( var j = 0; j < bytes_len_; j++ ) { temp_hex_str = bytes[j].toString( 16 ).toUpperCase( ); if( temp_hex_str.length == 1 ) { temp_hex_str = "0" + temp_hex_str; } lora.payload += temp_hex_str; } var date = new Date(); var lDate = date.toISOString(); if (port === 125){ //batch decodedBatch = !(bytes[0] & 0x01); //trame standard if (decodedBatch === false){ decoded.zclheader = {}; decoded.zclheader.report = "standard"; attributID = -1; cmdID = -1; clusterdID = -1; //endpoint decoded.zclheader.endpoint = ((bytes[0]&0xE0)>>5) | ((bytes[0]&0x06)<<2); //command ID cmdID = bytes[1]; decoded.zclheader.cmdID = decimalToHex(cmdID,2); //Cluster ID clusterdID = bytes[2]*256 + bytes[3]; decoded.zclheader.clusterdID = decimalToHex(clusterdID,4); // decode report and read atrtribut response if((cmdID === 0x0a)|(cmdID === 0x8a)|(cmdID === 0x01)){ stdData = {}; var tab=[]; //Attribut ID attributID = bytes[4]*256 + bytes[5]; decoded.zclheader.attributID = decimalToHex(attributID,4); if (cmdID === 0x8a) { decoded.zclheader.alarm = 1; } else { decoded.zclheader.alarm = 0; } //data index start if ((cmdID === 0x0a) | (cmdID === 0x8a)) index = 7; // if (cmdID === 0x01) {index = 8; decoded.zclheader.status = bytes[6];} //temperature 1 and temperature 2 if ( (clusterdID === 0x0402 ) & (attributID === 0x0000)) { tab.push({label: "temperature"+(decoded.zclheader.endpoint+1),value: (UintToInt(bytes[index]*256+bytes[index+1],2))/100, date: lDate }) }; // lorawan message type if ( (clusterdID === 0x8004 ) & (attributID === 0x0000)) { if (bytes[index] === 1) stdData.message_type = "confirmed"; if (bytes[index] === 0) stdData.message_type = "unconfirmed"; } // lorawan retry if ( (clusterdID === 0x8004 ) & (attributID === 0x0001)) { stdData.nb_retry= bytes[index] ; } // lorawan reassociation if ( (clusterdID === 0x8004 ) & (attributID === 0x0002)) { stdData.period_in_minutes = bytes[index+1] *256+bytes[index+2]; stdData.nb_err_frames = bytes[index+3] *256+bytes[index+4]; } decoded.data = tab; } // configuration node power desc if ( (clusterdID === 0x0050 ) & (attributID === 0x0006)) { index2 = index + 3; if ((bytes[index+2] &0x01) === 0x01) { tab.push({label:"ExternalPowerVoltage" ,value:(bytes[index2]*256+bytes[index2+1])/1000, date:lDate}) ; index2=index2+2; } if ((bytes[index+2] &0x04) === 0x04) { tab.push({label:"BatteryVoltage" ,value:(bytes[index2]*256+bytes[index2+1])/1000, date:lDate}) ; index2=index2+2; } if ((bytes[index+2] &0x02) === 0x02) {decoded.data.rechargeable_battery_voltage = (bytes[index2]*256+bytes[index2+1])/1000;index2=index2+2;} if ((bytes[index+2] &0x08) === 0x08) {decoded.data.solar_harvesting_voltage = (bytes[index2]*256+bytes[index2+1])/1000;index2=index2+2;} if ((bytes[index+2] &0x10) === 0x10) {decoded.data.tic_harvesting_voltage = (bytes[index2]*256+bytes[index2+1])/1000;index2=index2+2;} // tab.push(stdData); } // decode configuration response if(cmdID === 0x07){ //AttributID attributID = bytes[6]*256 + bytes[7];decoded.zclheader.attributID = decimalToHex(attributID,4); //status decoded.zclheader.status = bytes[4]; //batch decoded.zclheader.decodedBatch = bytes[5]; } //decode read configuration response if(cmdID === 0x09){ //AttributID attributID = bytes[6]*256 + bytes[7];decoded.zclheader.attributID = decimalToHex(attributID,4); //status decoded.zclheader.status = bytes[4]; //batch decoded.zclheader.decodedBatch = bytes[5]; //AttributType decoded.zclheader.attribut_type = bytes[8]; //min decoded.zclheader.min = {} if ((bytes[9] & 0x80) === 0x80) { decoded.zclheader.min.value = (bytes[9]-0x80)*256+bytes[10]; decoded.zclheader.min.unity = "minutes"; } else { decoded.zclheader.min.value = bytes[9]*256+bytes[10]; decoded.zclheader.min.unity = "seconds"; } //max decoded.zclheader.max = {} if ((bytes[9] & 0x80) === 0x80) { decoded.zclheader.max.value = (bytes[9]-0x80)*256+bytes[10]; decoded.zclheader.max.unity = "minutes"; } else { decoded.zclheader.max.value = bytes[9]*256+bytes[10]; decoded.zclheader.max.unity = "seconds"; } } } else { var decoded = {}; brData = (brUncompress(3,[{taglbl: 0,resol: 10, sampletype: 7,lblname: "temperature1", divide: 100},{ taglbl: 1, resol: 10, sampletype: 7,lblname: "temperature2", divide: 100}, { taglbl: 5, resol: 100, sampletype: 6, lblname: "BatteryVoltage", divide: 1000}], lora.payload, lDate)) var data_length = brData["datas"].length; var tab=[]; for (var i = 0; i < data_length; i++) { tab.push({label:brData["datas"][i]["data"]["label"] ,value:brData["datas"][i]["data"]["value"], date:brData["datas"][i]["date"]}) ; } decoded.data = tab; decoded.zclheader = {}; decoded.zclheader.report = "batch"; } } return decoded; } const ignore_vars = ['application_id','device_id','downlink_key','lora_bandwidth','lora_spreading_factor','data_rate_index','coding_rate','frequency','time','gateway_eui']; //timestamp,fport,fcnt,payload,rssi,snr payload = payload.filter(x => !ignore_vars.includes(x.variable)); // I'm adding this extra code to run the TTN parser. const payload_raw = payload.find((x) => x.variable === "payload_raw" || x.variable === "payload" || x.variable === "data"); if (payload_raw) { // Convert the data from Hex to Buffer (same as bytes from TTN). const buffer = Buffer.from(payload_raw.value, "hex"); // Get the port variable. const port = payload.find((x) => x.variable === "port" || x.variable === "fport"); // Run the TTN decoder. const decoded_payload = Decoder(buffer, port ? port.value : null); // Copy or generate a serie for this batch of data. const serie = payload[0].serie || String(new Date().getTime()); // Normalize the decoded_payload.data if (decoded_payload && decoded_payload.data) { // transform/normalize the structure to TagoIO structure. const normalized_payload = decoded_payload.data.map((data) => { return { serie, variable: data.label.toLowerCase(), value: data.value, time: data.date }; }); // concat both array. payload = payload.concat(normalized_payload); // console.log(normalized_payload); //payload = normalized_payload; } // Parse of zclheader if (decoded_payload.zclheader) { // Check if alarm was provided, and then concatenate. if ("alarm" in decoded_payload.zclheader) { payload.push({ variable: "alarm", value: decoded_payload.zclheader.alarm, serie }); } if ("report" in decoded_payload.zclheader) { //payload.push({ variable: "report", value: decoded_payload.zclheader.report, serie }); } } }