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SenseCAP_T1000_AWS_Decoder.js
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SenseCAP_T1000_AWS_Decoder.js
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//Lambda function script
const {IoTDataPlaneClient, PublishCommand} = require("@aws-sdk/client-iot-data-plane");
const { IoTWirelessClient, UpdateResourcePositionCommand, GetPositionEstimateCommand } = require("@aws-sdk/client-iot-wireless");
const client = new IoTDataPlaneClient({
//Replace the region according to your device.
"region": "us-east-1"
});
const wireless_client = new IoTWirelessClient({
"region": "us-east-1"
});
//Modify the device id according to your device.
const device_id = "Your_Device_ID"
function decodeUplink(input, fport) {
const bytes = Buffer.from(input, 'base64');
const bytesString = bytes2HexString(bytes)
const originMessage = bytesString.toLocaleUpperCase()
const decoded = {
valid: true,
err: 0,
payload: bytesString,
messages: []
}
if (fport === 199 || fport === 192) {
decoded.messages.push({fport: fport, payload: bytesString})
return {data: decoded}
}
if (fport !== 5) {
decoded.valid = false
return {data: decoded}
}
let measurement = messageAnalyzed(originMessage)
console.log(measurement)
if (measurement.length === 0) {
decoded.valid = false
return {data: decoded}
}
for (let message of measurement) {
if (message.length === 0) {
continue
}
let elements = []
for (let element of message) {
if (element.errorCode) {
decoded.err = element.errorCode
decoded.errMessage = element.error
} else {
elements.push(element)
}
}
if (elements.length > 0) {
decoded.messages.push(elements)
}
}
// decoded.messages = measurement
return {data: decoded}
}
function messageAnalyzed (messageValue) {
try {
let frames = unpack(messageValue)
let measurementResultArray = []
for (let i = 0; i < frames.length; i++) {
let item = frames[i]
let dataId = item.dataId
let dataValue = item.dataValue
let measurementArray = deserialize(dataId, dataValue)
measurementResultArray.push(measurementArray)
}
return measurementResultArray
} catch (e) {
return e.toString()
}
}
function unpack (messageValue) {
let frameArray = []
for (let i = 0; i < messageValue.length; i++) {
let remainMessage = messageValue
let dataId = remainMessage.substring(0, 2).toUpperCase()
let dataValue
let dataObj = {}
let packageLen
switch (dataId) {
case '01':
dataValue = remainMessage.substring(2, 94)
messageValue = remainMessage.substring(94)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '02':
dataValue = remainMessage.substring(2, 32)
messageValue = remainMessage.substring(32)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '03':
dataValue = remainMessage.substring(2, 64)
messageValue = remainMessage.substring(64)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '04':
dataValue = remainMessage.substring(2, 20)
messageValue = remainMessage.substring(20)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '05':
dataValue = remainMessage.substring(2, 10)
messageValue = remainMessage.substring(10)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '06':
dataValue = remainMessage.substring(2, 44)
messageValue = remainMessage.substring(44)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '07':
dataValue = remainMessage.substring(2, 84)
messageValue = remainMessage.substring(84)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '08':
dataValue = remainMessage.substring(2, 70)
messageValue = remainMessage.substring(70)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '09':
dataValue = remainMessage.substring(2, 36)
messageValue = remainMessage.substring(36)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '0A':
dataValue = remainMessage.substring(2, 76)
messageValue = remainMessage.substring(76)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '0B':
dataValue = remainMessage.substring(2, 62)
messageValue = remainMessage.substring(62)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '0C':
break
case '0D':
dataValue = remainMessage.substring(2, 10)
messageValue = remainMessage.substring(10)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '0E':
packageLen = getInt(remainMessage.substring(8, 10)) * 2 + 10
dataValue = remainMessage.substring(2, 8) + remainMessage.substring(10, packageLen)
messageValue = remainMessage.substring(packageLen)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '0F':
dataValue = remainMessage.substring(2, 34)
messageValue = remainMessage.substring(34)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '10':
dataValue = remainMessage.substring(2, 26)
messageValue = remainMessage.substring(26)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '11':
dataValue = remainMessage.substring(2, 28)
messageValue = remainMessage.substring(28)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '1A':
dataValue = remainMessage.substring(2, 56)
messageValue = remainMessage.substring(56)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '1B':
dataValue = remainMessage.substring(2, 96)
messageValue = remainMessage.substring(96)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '1C':
dataValue = remainMessage.substring(2, 82)
messageValue = remainMessage.substring(82)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
case '1D':
dataValue = remainMessage.substring(2, 40)
messageValue = remainMessage.substring(40)
dataObj = {
'dataId': dataId, 'dataValue': dataValue
}
break
default:
return frameArray
}
if (dataValue.length < 2) {
break
}
frameArray.push(dataObj)
}
return frameArray
}
function deserialize (dataId, dataValue) {
let measurementArray = []
let eventList = []
let measurement = {}
let collectTime = 0
let groupId = 0
let shardFlag = {}
let payload = ''
let motionId = ''
switch (dataId) {
case '01':
measurementArray = getUpShortInfo(dataValue)
measurementArray.push(...getMotionSetting(dataValue.substring(30, 40)))
measurementArray.push(...getStaticSetting(dataValue.substring(40, 46)))
measurementArray.push(...getShockSetting(dataValue.substring(46, 52)))
measurementArray.push(...getTempSetting(dataValue.substring(52, 72)))
measurementArray.push(...getLightSetting(dataValue.substring(72, 92)))
break
case '02':
measurementArray = getUpShortInfo(dataValue)
break
case '03':
measurementArray.push(...getMotionSetting(dataValue.substring(0, 10)))
measurementArray.push(...getStaticSetting(dataValue.substring(10, 16)))
measurementArray.push(...getShockSetting(dataValue.substring(16, 22)))
measurementArray.push(...getTempSetting(dataValue.substring(22, 42)))
measurementArray.push(...getLightSetting(dataValue.substring(42, 62)))
break
case '04':
let interval = 0
let workMode = getInt(dataValue.substring(0, 2))
let heartbeatInterval = getMinsByMin(dataValue.substring(4, 8))
let periodicInterval = getMinsByMin(dataValue.substring(8, 12))
let eventInterval = getMinsByMin(dataValue.substring(12, 16))
switch (workMode) {
case 0:
interval = heartbeatInterval
break
case 1:
interval = periodicInterval
break
case 2:
interval = eventInterval
break
}
measurementArray = [
{measurementId: '3940', type: 'Work Mode', measurementValue: workMode},
{measurementId: '3942', type: 'Heartbeat Interval', measurementValue: heartbeatInterval},
{measurementId: '3943', type: 'Periodic Interval', measurementValue: periodicInterval},
{measurementId: '3944', type: 'Event Interval', measurementValue: eventInterval},
{measurementId: '3941', type: 'SOS Mode', measurementValue: getSOSMode(dataValue.substring(16, 18))},
{measurementId: '3900', type: 'Uplink Interval', measurementValue: interval}
]
break;
case '05':
measurementArray = [
{measurementId: '3000', type: 'Battery', measurementValue: getBattery(dataValue.substring(0, 2))},
{measurementId: '3940', type: 'Work Mode', measurementValue: getWorkingMode(dataValue.substring(2, 4))},
{measurementId: '3965', type: 'Positioning Strategy', measurementValue: getPositioningStrategy(dataValue.substring(4, 6))},
{measurementId: '3941', type: 'SOS Mode', measurementValue: getSOSMode(dataValue.substring(6, 8))}
]
break
case '06':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId: motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '4197', timestamp: collectTime, motionId: motionId, type: 'Longitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(16, 24), 1000000))},
{measurementId: '4198', timestamp: collectTime, motionId: motionId, type: 'Latitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(24, 32), 1000000))},
{measurementId: '4097', timestamp: collectTime, motionId: motionId, type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(32, 36), 10)},
{measurementId: '4199', timestamp: collectTime, motionId: motionId, type: 'Light', measurementValue: getSensorValue(dataValue.substring(36, 40))},
{measurementId: '3000', timestamp: collectTime, motionId: motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(40, 42))}
]
break
case '07':
eventList = getEventStatus(dataValue.substring(0, 6))
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId: motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '5001', timestamp: collectTime, motionId: motionId, type: 'Wi-Fi Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 72))},
{measurementId: '4097', timestamp: collectTime, motionId: motionId, type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(72, 76), 10)},
{measurementId: '4199', timestamp: collectTime, motionId: motionId, type: 'Light', measurementValue: getSensorValue(dataValue.substring(76, 80))},
{measurementId: '3000', timestamp: collectTime, motionId: motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(80, 82))}
]
break
case '08':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId: motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '5002', timestamp: collectTime, motionId: motionId, type: 'BLE Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 58))},
{measurementId: '4097', timestamp: collectTime, motionId: motionId, type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(58, 62), 10)},
{measurementId: '4199', timestamp: collectTime, motionId: motionId, type: 'Light', measurementValue: getSensorValue(dataValue.substring(62, 66))},
{measurementId: '3000', timestamp: collectTime, motionId: motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(66, 68))}
]
break
case '09':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId: motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '4197', timestamp: collectTime, motionId: motionId, type: 'Longitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(16, 24), 1000000))},
{measurementId: '4198', timestamp: collectTime, motionId: motionId, type: 'Latitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(24, 32), 1000000))},
{measurementId: '3000', timestamp: collectTime, motionId: motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(32, 34))}
]
break
case '0A':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '5001', timestamp: collectTime, motionId, type: 'Wi-Fi Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 72))},
{measurementId: '3000', timestamp: collectTime, motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(72, 74))}
]
break
case '0B':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '5002', timestamp: collectTime, motionId, type: 'BLE Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 58))},
{measurementId: '3000', timestamp: collectTime, motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(58, 60))},
]
break
case '0D':
let errorCode = getInt(dataValue)
let error = ''
switch (errorCode) {
case 1:
error = 'FAILED TO OBTAIN THE UTC TIMESTAMP'
break
case 2:
error = 'ALMANAC TOO OLD'
break
case 3:
error = 'DOPPLER ERROR'
break
}
measurementArray.push({errorCode, error})
break
case '0E':
shardFlag = getShardFlag(dataValue.substring(0, 2))
groupId = getInt(dataValue.substring(2, 6))
payload = dataValue.substring(6)
measurement = {
measurementId: '6152',
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'gnss-ng payload',
measurementValue: payload
}
measurementArray.push(measurement)
break
case '0F':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
shardFlag = getShardFlag(dataValue.substring(26, 28))
groupId = getInt(dataValue.substring(28, 32))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray.push({
measurementId: '4200',
timestamp: collectTime,
motionId,
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'Event Status',
measurementValue: getEventStatus(dataValue.substring(0, 6))
})
measurementArray.push({
measurementId: '4097',
timestamp: collectTime,
motionId,
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'Air Temperature',
measurementValue: getSensorValue(dataValue.substring(16, 20), 10)
})
measurementArray.push({
measurementId: '4199',
timestamp: collectTime,
motionId,
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'Light',
measurementValue: getSensorValue(dataValue.substring(20, 24))
})
measurementArray.push({
measurementId: '3000',
timestamp: collectTime,
motionId,
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'Battery',
measurementValue: getBattery(dataValue.substring(24, 26))
})
break
case '10':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
shardFlag = getShardFlag(dataValue.substring(18, 20))
groupId = getInt(dataValue.substring(20, 24))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray.push({
measurementId: '4200',
timestamp: collectTime,
motionId,
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'Event Status',
measurementValue: getEventStatus(dataValue.substring(0, 6))
})
measurementArray.push({
measurementId: '3000',
timestamp: collectTime,
motionId,
groupId: groupId,
index: shardFlag.index,
count: shardFlag.count,
type: 'Battery',
measurementValue: getBattery(dataValue.substring(16, 18))
})
break
case '11':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
measurementArray.push({
measurementId: '3576',
timestamp: collectTime,
type: 'Positioning Status',
measurementValue: getPositingStatus(dataValue.substring(0, 2))
})
measurementArray.push({
timestamp: collectTime,
measurementId: '4200',
type: 'Event Status',
measurementValue: getEventStatus(dataValue.substring(2, 8))
})
if (!isNaN(parseFloat(getSensorValue(dataValue.substring(16, 20), 10)))) {
measurementArray.push({
timestamp: collectTime,
measurementId: '4097',
type: 'Air Temperature',
measurementValue: getSensorValue(dataValue.substring(16, 20), 10)
})
}
if (!isNaN(parseFloat(getSensorValue(dataValue.substring(20, 24))))) {
measurementArray.push({
timestamp: collectTime,
measurementId: '4199',
type: 'Light',
measurementValue: getSensorValue(dataValue.substring(20, 24))
})
}
measurementArray.push({
timestamp: collectTime,
measurementId: '3000',
type: 'Battery',
measurementValue: getBattery(dataValue.substring(24, 26))
})
break
case '1A':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '4197', timestamp: collectTime, motionId, type: 'Longitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(16, 24), 1000000))},
{measurementId: '4198', timestamp: collectTime, motionId, type: 'Latitude', measurementValue: parseFloat(getSensorValue(dataValue.substring(24, 32), 1000000))},
{measurementId: '4097', timestamp: collectTime, motionId, type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(32, 36), 10)},
{measurementId: '4199', timestamp: collectTime, motionId, type: 'Light', measurementValue: getSensorValue(dataValue.substring(36, 40))},
{measurementId: '4210', timestamp: collectTime, motionId, type: 'AccelerometerX', measurementValue: getSensorValue(dataValue.substring(40, 44))},
{measurementId: '4211', timestamp: collectTime, motionId, type: 'AccelerometerY', measurementValue: getSensorValue(dataValue.substring(44, 48))},
{measurementId: '4212', timestamp: collectTime, motionId, type: 'AccelerometerZ', measurementValue: getSensorValue(dataValue.substring(48, 52))},
{measurementId: '3000', timestamp: collectTime, motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(52, 54))},
]
break
// WIFI定位数据+sensor+三轴+电量
case '1B':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '5001', timestamp: collectTime, motionId, type: 'Wi-Fi Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 72))},
{measurementId: '4097', timestamp: collectTime, motionId, type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(72, 76), 10)},
{measurementId: '4199', timestamp: collectTime, motionId, type: 'Light', measurementValue: getSensorValue(dataValue.substring(76, 80))},
{measurementId: '4210', timestamp: collectTime, motionId, type: 'AccelerometerX', measurementValue: getSensorValue(dataValue.substring(80, 84))},
{measurementId: '4211', timestamp: collectTime, motionId, type: 'AccelerometerY', measurementValue: getSensorValue(dataValue.substring(84, 88))},
{measurementId: '4212', timestamp: collectTime, motionId, type: 'AccelerometerZ', measurementValue: getSensorValue(dataValue.substring(88, 92))},
{measurementId: '3000', timestamp: collectTime, motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(92, 94))}
]
break
// BLE定位数据+sensor+三轴+电量
case '1C':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
motionId = getMotionId(dataValue.substring(6, 8))
measurementArray = [
{measurementId: '4200', timestamp: collectTime, motionId, type: 'Event Status', measurementValue: getEventStatus(dataValue.substring(0, 6))},
{measurementId: '5002', timestamp: collectTime, motionId, type: 'BLE Scan', measurementValue: getMacAndRssiObj(dataValue.substring(16, 58))},
{measurementId: '4097', timestamp: collectTime, motionId, type: 'Air Temperature', measurementValue: getSensorValue(dataValue.substring(58, 62), 10)},
{measurementId: '4199', timestamp: collectTime, motionId, type: 'Light', measurementValue: getSensorValue(dataValue.substring(62, 66))},
{measurementId: '4210', timestamp: collectTime, motionId, type: 'AccelerometerX', measurementValue: getSensorValue(dataValue.substring(66, 70))},
{measurementId: '4211', timestamp: collectTime, motionId, type: 'AccelerometerY', measurementValue: getSensorValue(dataValue.substring(70, 74))},
{measurementId: '4212', timestamp: collectTime, motionId, type: 'AccelerometerZ', measurementValue: getSensorValue(dataValue.substring(74, 78))},
{measurementId: '3000', timestamp: collectTime, motionId, type: 'Battery', measurementValue: getBattery(dataValue.substring(78, 80))}
]
break
// 定位状态 + sensor+三轴数据上报
case '1D':
collectTime = getUTCTimestamp(dataValue.substring(8, 16))
measurementArray.push({
measurementId: '3576',
timestamp: collectTime,
type: 'Positioning Status',
measurementValue: getPositingStatus(dataValue.substring(0, 2))
})
measurementArray.push({
timestamp: collectTime,
measurementId: '4200',
type: 'Event Status',
measurementValue: getEventStatus(dataValue.substring(2, 8))
})
if (!isNaN(parseFloat(getSensorValue(dataValue.substring(16, 20), 10)))) {
measurementArray.push({
timestamp: collectTime,
measurementId: '4097',
type: 'Air Temperature',
measurementValue: getSensorValue(dataValue.substring(16, 20), 10)
})
}
if (!isNaN(parseFloat(getSensorValue(dataValue.substring(20, 24))))) {
measurementArray.push({
timestamp: collectTime,
measurementId: '4199',
type: 'Light',
measurementValue: getSensorValue(dataValue.substring(20, 24))
})
}
measurementArray.push({
timestamp: collectTime,
measurementId: '4210',
type: 'AccelerometerX',
measurementValue: getSensorValue(dataValue.substring(24, 28))
})
measurementArray.push({
timestamp: collectTime,
measurementId: '4211',
type: 'AccelerometerY',
measurementValue: getSensorValue(dataValue.substring(28, 32))
})
measurementArray.push({
timestamp: collectTime,
measurementId: '4212',
type: 'AccelerometerZ',
measurementValue: getSensorValue(dataValue.substring(32, 36))
})
measurementArray.push({
timestamp: collectTime,
measurementId: '3000',
type: 'Battery',
measurementValue: getBattery(dataValue.substring(36, 38))
})
break
}
return measurementArray
}
function getMotionId (str) {
return getInt(str)
}
function getPositingStatus (str) {
let status = getInt(str)
switch (status) {
case 0:
return {id:status, statusName:"Positioning successful."}
case 1:
return {id:status, statusName:"The GNSS scan timed out and failed to obtain the location."}
case 2:
return {id:status, statusName:"The Wi-Fi scan timed out and failed to obtain the location."}
case 3:
return {id:status, statusName:"The Wi-Fi + GNSS scan timed out and failed to obtain the location."}
case 4:
return {id:status, statusName:"The GNSS + Wi-Fi scan timed out and failed to obtain the location."}
case 5:
return {id:status, statusName:"The Bluetooth scan timed out and failed to obtain the location."}
case 6:
return {id:status, statusName:"The Bluetooth + Wi-Fi scan timed out and failed to obtain the location."}
case 7:
return {id:status, statusName:"The Bluetooth + GNSS scan timed out and failed to obtain the location."}
case 8:
return {id:status, statusName:"The Bluetooth + Wi-Fi + GNSS scan timed out and failed to obtain the location."}
case 9:
return {id:status, statusName:"Location Server failed to parse the GNSS location."}
case 10:
return {id:status, statusName:"Location Server failed to parse the Wi-Fi location."}
case 11:
return {id:status, statusName:"Location Server failed to parse the Bluetooth location."}
case 12:
return {id:status, statusName:"Failed to parse the GNSS location due to the poor accuracy."}
case 13:
return {id:status, statusName:"Time synchronization failed."}
case 14:
return {id:status, statusName:"Failed to obtain location due to the old Almanac."}
}
return getInt(str)
}
function getUpShortInfo (messageValue) {
return [
{
measurementId: '3000', type: 'Battery', measurementValue: getBattery(messageValue.substring(0, 2))
}, {
measurementId: '3502', type: 'Firmware Version', measurementValue: getSoftVersion(messageValue.substring(2, 6))
}, {
measurementId: '3001', type: 'Hardware Version', measurementValue: getHardVersion(messageValue.substring(6, 10))
}, {
measurementId: '3940', type: 'Work Mode', measurementValue: getWorkingMode(messageValue.substring(10, 12))
}, {
measurementId: '3965', type: 'Positioning Strategy', measurementValue: getPositioningStrategy(messageValue.substring(12, 14))
}, {
measurementId: '3942', type: 'Heartbeat Interval', measurementValue: getMinsByMin(messageValue.substring(14, 18))
}, {
measurementId: '3943', type: 'Periodic Interval', measurementValue: getMinsByMin(messageValue.substring(18, 22))
}, {
measurementId: '3944', type: 'Event Interval', measurementValue: getMinsByMin(messageValue.substring(22, 26))
}, {
measurementId: '3945', type: 'Sensor Enable', measurementValue: getInt(messageValue.substring(26, 28))
}, {
measurementId: '3941', type: 'SOS Mode', measurementValue: getSOSMode(messageValue.substring(28, 30))
}
]
}
function getMotionSetting (str) {
return [
{measurementId: '3946', type: 'Motion Enable', measurementValue: getInt(str.substring(0, 2))},
{measurementId: '3947', type: 'Any Motion Threshold', measurementValue: getSensorValue(str.substring(2, 6), 1)},
{measurementId: '3948', type: 'Motion Start Interval', measurementValue: getMinsByMin(str.substring(6, 10))},
]
}
function getStaticSetting (str) {
return [
{measurementId: '3949', type: 'Static Enable', measurementValue: getInt(str.substring(0, 2))},
{measurementId: '3950', type: 'Device Static Timeout', measurementValue: getMinsByMin(str.substring(2, 6))}
]
}
function getShockSetting (str) {
return [
{measurementId: '3951', type: 'Shock Enable', measurementValue: getInt(str.substring(0, 2))},
{measurementId: '3952', type: 'Shock Threshold', measurementValue: getInt(str.substring(2, 6))}
]
}
function getTempSetting (str) {
return [
{measurementId: '3953', type: 'Temp Enable', measurementValue: getInt(str.substring(0, 2))},
{measurementId: '3954', type: 'Event Temp Interval', measurementValue: getMinsByMin(str.substring(2, 6))},
{measurementId: '3955', type: 'Event Temp Sample Interval', measurementValue: getSecondsByInt(str.substring(6, 10))},
{measurementId: '3956', type: 'Temp ThMax', measurementValue: getSensorValue(str.substring(10, 14), 10)},
{measurementId: '3957', type: 'Temp ThMin', measurementValue: getSensorValue(str.substring(14, 18), 10)},
{measurementId: '3958', type: 'Temp Warning Type', measurementValue: getInt(str.substring(18, 20))}
]
}
function getLightSetting (str) {
return [
{measurementId: '3959', type: 'Light Enable', measurementValue: getInt(str.substring(0, 2))},
{measurementId: '3960', type: 'Event Light Interval', measurementValue: getMinsByMin(str.substring(2, 6))},
{measurementId: '3961', type: 'Event Light Sample Interval', measurementValue: getSecondsByInt(str.substring(6, 10))},
{measurementId: '3962', type: 'Light ThMax', measurementValue: getSensorValue(str.substring(10, 14), 10)},
{measurementId: '3963', type: 'Light ThMin', measurementValue: getSensorValue(str.substring(14, 18), 10)},
{measurementId: '3964', type: 'Light Warning Type', measurementValue: getInt(str.substring(18, 20))}
]
}
function getShardFlag (str) {
let bitStr = getByteArray(str)
return {
count: parseInt(bitStr.substring(0, 4), 2),
index: parseInt(bitStr.substring(4), 2)
}
}
function getBattery (batteryStr) {
return loraWANV2DataFormat(batteryStr)
}
function getSoftVersion (softVersion) {
return `${loraWANV2DataFormat(softVersion.substring(0, 2))}.${loraWANV2DataFormat(softVersion.substring(2, 4))}`
}
function getHardVersion (hardVersion) {
return `${loraWANV2DataFormat(hardVersion.substring(0, 2))}.${loraWANV2DataFormat(hardVersion.substring(2, 4))}`
}
function getSecondsByInt (str) {
return getInt(str)
}
function getMinsByMin (str) {
return getInt(str)
}
function getSensorValue (str, dig) {
if (str === '8000') {
return null
} else {
return loraWANV2DataFormat(str, dig)
}
}
function bytes2HexString (arrBytes) {
var str = ''
for (var i = 0; i < arrBytes.length; i++) {
var tmp
var num = arrBytes[i]
if (num < 0) {
tmp = (255 + num + 1).toString(16)
} else {
tmp = num.toString(16)
}
if (tmp.length === 1) {
tmp = '0' + tmp
}
str += tmp
}
return str
}
function loraWANV2DataFormat (str, divisor = 1) {
let strReverse = bigEndianTransform(str)
let str2 = toBinary(strReverse)
if (str2.substring(0, 1) === '1') {
let arr = str2.split('')
let reverseArr = arr.map((item) => {
if (parseInt(item) === 1) {
return 0
} else {
return 1
}
})
str2 = parseInt(reverseArr.join(''), 2) + 1
return parseFloat('-' + str2 / divisor)
}
return parseInt(str2, 2) / divisor
}
function bigEndianTransform (data) {
let dataArray = []
for (let i = 0; i < data.length; i += 2) {
dataArray.push(data.substring(i, i + 2))
}
return dataArray
}
function toBinary (arr) {
let binaryData = arr.map((item) => {
let data = parseInt(item, 16)
.toString(2)
let dataLength = data.length
if (data.length !== 8) {
for (let i = 0; i < 8 - dataLength; i++) {
data = `0` + data
}
}
return data
})
return binaryData.toString().replace(/,/g, '')
}
function getSOSMode (str) {
return loraWANV2DataFormat(str)
}
function getMacAndRssiObj (pair) {
let pairs = []
if (pair.length % 14 === 0) {
for (let i = 0; i < pair.length; i += 14) {
let mac = getMacAddress(pair.substring(i, i + 12))
if (mac) {
let rssi = getInt8RSSI(pair.substring(i + 12, i + 14))
pairs.push({mac: mac, rssi: rssi})
} else {
continue
}
}
}
return pairs
}
function getMacAddress (str) {
if (str.toLowerCase() === 'ffffffffffff') {
return null
}
let macArr = []
for (let i = 1; i < str.length; i++) {
if (i % 2 === 1) {
macArr.push(str.substring(i - 1, i + 1))
}
}
let mac = ''
for (let i = 0; i < macArr.length; i++) {
mac = mac + macArr[i]
if (i < macArr.length - 1) {
mac = mac + ':'
}
}
return mac
}
function getInt8RSSI (str) {
return loraWANV2DataFormat(str)
}
function getInt (str) {
return parseInt(str, 16)
}
function getEventStatus (str) {
// return getInt(str)
let bitStr = getByteArray(str)
let bitArr = []
for (let i = 0; i < bitStr.length; i++) {
bitArr[i] = bitStr.substring(i, i + 1)
}
bitArr = bitArr.reverse()
let event = []
for (let i = 0; i < bitArr.length; i++) {
if (bitArr[i] !== '1') {
continue
}
switch (i){
case 0:
event.push({id:1, eventName:"Start moving event."})
break
case 1:
event.push({id:2, eventName:"End movement event."})
break
case 2:
event.push({id:3, eventName:"Motionless event."})
break
case 3:
event.push({id:4, eventName:"Shock event."})
break
case 4:
event.push({id:5, eventName:"Temperature event."})
break
case 5:
event.push({id:6, eventName:"Light event."})
break
case 6:
event.push({id:7, eventName:"SOS event."})
break
case 7:
event.push({id:8, eventName:"Press once event."})
break
}
}
return event
}
function getByteArray (str) {
let bytes = []
for (let i = 0; i < str.length; i += 2) {
bytes.push(str.substring(i, i + 2))
}
return toBinary(bytes)
}
function getWorkingMode (workingMode) {
return getInt(workingMode)
}
function getPositioningStrategy (strategy) {
return getInt(strategy)
}
function getUTCTimestamp(str){
return parseInt(loraWANV2PositiveDataFormat(str)) * 1000
}
function loraWANV2PositiveDataFormat (str, divisor = 1) {
let strReverse = bigEndianTransform(str)
let str2 = toBinary(strReverse)
return parseInt(str2, 2) / divisor
}
async function updateDevicePosition(gps_data) {
const input = { // UpdateResourcePositionRequest
ResourceIdentifier: device_id, // required
ResourceType: "WirelessDevice", // required
GeoJsonPayload: JSON.stringify(gps_data),
};
const command = new UpdateResourcePositionCommand(input);
const wireless_response = await wireless_client.send(command);
console.log(wireless_response)
}
exports.handler = async (event) => {
try {
const lorawan_info = event["WirelessMetadata"]["LoRaWAN"];
const lorawan_data = event["PayloadData"];
const resolved_data = decodeUplink(lorawan_data, lorawan_info["FPort"])["data"];
// publish all measurement data
const input = { // PublishRequest
topic: 'tracker/measurement',
qos: 0,
retain: false,
payload: JSON.stringify({
eui: lorawan_info["DevEui"],
timestamp: lorawan_info["Timestamp"],
data: resolved_data
})
};
const command = new PublishCommand(input);
const response = await client.send(command);
console.log("response: " + JSON.stringify(response));
let longitude;
let latitude;
let messages = resolved_data.messages
console.log("messages: " + JSON.stringify(messages))
if (messages && messages.length > 0) {
for (let i = 0; i < messages.length; i++) {
for (let j = 0; j < messages[i].length; j++) {
// update location from gps
if (messages[i][j].measurementId === "4197") {
longitude = messages[i][j]["measurementValue"];
}
if (messages[i][j].measurementId === "4198") {
latitude = messages[i][j]["measurementValue"];
}
if (latitude && longitude) {
try {
let gps_data = {
"type": "Point",
"coordinates": [longitude, latitude]
// "coordinates": [33.3318, -22.2155, 13.123]
}
await updateDevicePosition(gps_data);
} catch (e) {
console.log(`===>error`, e)
}
}
// update location from wifi data
if (messages[i][j].measurementId === "5002") {
let WiFiAccessPoints = []
for (let k = 0; k < messages[i][j]["measurementValue"].length; k++) {
WiFiAccessPoints.push({
"MacAddress": messages[i][j]["measurementValue"][k].mac,
"Rss": parseInt(messages[i][j]["measurementValue"][k].rssi)
})
}