Everyone knows well what is google map and how its useful in finding shops, locations or routes etc. In Cities had seen people who checks the google map before starting to office, the reason is "Traffic" its painful and I personalty experienced that so we watch out the traffic condition based on that adjust the time.
Now the current situation is different, people forgot about traffic and started worried about the crowd. When we go out for shop or works we need to maintain distancing these days. If crowd is more people wont feel safely.
Lora Mapper, plots the map in important paces like shops, bustop, church, temple, play ground, metro stations and tourist places etc.
WhatisLoRA Mapper?
Lora Mapper, Its designed with LORA radio from ST micro, Also the board paired up with the NFC reader from ST micro. Reader is interfaced with SPI and it has ability to read/write the NFC tags. This is very simple setup and it can be installed on public places or shops/malls entry.
Whoever wants to enter into shop or other places they need to sign in with NFC tags by tapping. NFC tag will have unique ID for each person. Its used to collect the person information from cloud.
The head counts are reordered with in details, Active counts shows the current people counts in the place/store. If some one exists from the place the sensor(IR/Switch) decrements the active counter value. Total count holds the data on preset day or week. Also this setup has contactless temperature which detects the person temperature and sends the data along with nfc information.
This count and people information is send through LORA network and reaches the Helium cloud. Helium cloud is integrated with AWS to get receive topics over MQTT. This is handed with lambda function. Alexa Skills set are defined for any users to get the traffic details in particular places. SMS alerts are used to inform the particular departments about the people crowd.
I have used rerobots sandobox for testing the LORA since no coverage in India. the suport was really good from the hard-share.
Block Diagram:
The tutorial and docs from the helium team really helped me to make AWS integration with Twilio API's.
I would like to write more here but the time is ticking... I will update some more details later.
/******************************************************************************* * Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman * Copyright (c) 2018 Terry Moore, MCCI * * Permission is hereby granted, free of charge, to anyone * obtaining a copy of this document and accompanying files, * to do whatever they want with them without any restriction, * including, but not limited to, copying, modification and redistribution. * NO WARRANTY OF ANY KIND IS PROVIDED. * * This example sends a valid LoRaWAN packet with payload "Hello, * world!", using frequency and encryption settings matching those of * the The Things Network. It's pre-configured for the Adafruit * Feather M0 LoRa. * *******************************************************************************//******************************************************************************* * * For Helium developers, follow the Arduino Quickstart guide: * https://developer.helium.com/device/arduino-quickstart * TLDR: register your device on the console: * https://console.helium.com/devices * * The App EUI (as lsb) and App Key (as msb) get inserted below. * *******************************************************************************/#include<SPI.h>#include<arduino_lmic.h>#include<arduino_lmic_hal_boards.h>#include<arduino_lmic_hal_configuration.h>#include<arduino_lmic_lorawan_compliance.h>#include<arduino_lmic_user_configuration.h>#include<hal/hal.h>#include<lmic.h>//#include <Adafruit_seesaw.h>#include<LSM6DSOSensor.h>#include<LIS2DW12Sensor.h>#include<LIS2MDLSensor.h>#include<LPS22HHSensor.h>#include<STTS751Sensor.h>#include<HTS221Sensor.h>#include<CayenneLPP.h>#ifdef ARDUINO_SAM_DUE#define DEV_I2C Wire1#elif defined(ARDUINO_ARCH_STM32)#define DEV_I2C Wire#else#define DEV_I2C Wire#endif// SensorsLSM6DSOSensor*AccGyr;LPS22HHSensor*PressTemp;HTS221Sensor*HumTemp;u4_tactive_count=44;u4_ttotal_count=1251;// This should also be in little endian format// These are user configurable values and Helium console permits anythingstaticconstu1_tPROGMEMDEVEUI[8]={0xD8,0xB8,0x3C,0x8B,0xA9,0x45,0xF0,0x00};voidos_getDevEui(u1_t*buf){memcpy_P(buf,DEVEUI,8);}// This is the "App EUI" in Helium. Make sure it is little-endian (lsb).staticconstu1_tPROGMEMAPPEUI[8]={0x32,0x57,0xB0,0x85,0xAE,0x56,0x53,0xE1};voidos_getArtEui(u1_t*buf){memcpy_P(buf,APPEUI,8);}// This is the "App Key" in Helium. It is big-endian (msb).staticconstu1_tPROGMEMAPPKEY[16]={0x24,0x71,0xC8,0x2A,0x57,0x2A,0x5A,0x23,0xAC,0x1C,0x6B,0xCD,0xE3,0x66,0xE4,0x67};voidos_getDevKey(u1_t*buf){memcpy_P(buf,APPKEY,16);}CayenneLPPlpp(8);staticosjob_tsendjob;// Schedule TX every this many seconds (might become longer due to duty// cycle limitations).constunsignedTX_INTERVAL=60;// Pin mapping//// Adafruit BSPs are not consistent -- m0 express defs ARDUINO_SAMD_FEATHER_M0,// m0 defs ADAFRUIT_FEATHER_M0//#if defined(ARDUINO_SAMD_FEATHER_M0) || defined(ADAFRUIT_FEATHER_M0)// Pin mapping for Adafruit Feather M0 LoRa, etc.constlmic_pinmaplmic_pins={.nss=8,.rxtx=LMIC_UNUSED_PIN,.rst=4,.dio={3,6,LMIC_UNUSED_PIN},.rxtx_rx_active=0,.rssi_cal=8,// LBT cal for the Adafruit Feather M0 LoRa, in dB.spi_freq=8000000,};#elif defined(ARDUINO_AVR_FEATHER32U4)// Pin mapping for Adafruit Feather 32u4 LoRa, etc.// Just like Feather M0 LoRa, but uses SPI at 1MHz; and that's only// because MCCI doesn't have a test board; probably higher frequencies// will work.constlmic_pinmaplmic_pins={.nss=8,.rxtx=LMIC_UNUSED_PIN,.rst=4,.dio={7,6,LMIC_UNUSED_PIN},.rxtx_rx_active=0,.rssi_cal=8,// LBT cal for the Adafruit Feather 32U4 LoRa, in dB.spi_freq=1000000,};#elif defined(ARDUINO_CATENA_4551)// Pin mapping for Murata module / Catena 4551constlmic_pinmaplmic_pins={.nss=7,.rxtx=29,.rst=8,.dio={25,// DIO0 (IRQ) is D2526,// DIO1 is D2627,// DIO2 is D27},.rxtx_rx_active=1,.rssi_cal=10,.spi_freq=8000000// 8MHz};#elif defined(MCCI_CATENA_4610)#include"arduino_lmic_hal_boards.h"constlmic_pinmaplmic_pins=*Arduino_LMIC::GetPinmap_Catena4610();#elif defined(ARDUINO_DISCO_L072CZ_LRWAN1)constlmic_pinmaplmic_pins=*Arduino_LMIC::GetPinmap_Disco_L072cz_Lrwan1();#else#error "Unknown target"#endifvoidreadSensors(){// Read humidity and temperature.floathumidity=0;floattemperature=0;HumTemp->GetHumidity(&humidity);HumTemp->GetTemperature(&temperature);// Read pressure and temperature.floatpressure=0;PressTemp->GetPressure(&pressure);// Read accelerometer and gyroscope.int32_taccelerometer[3];int32_tgyroscope[3];AccGyr->Get_X_Axes(accelerometer);AccGyr->Get_G_Axes(gyroscope);// Clear Payloadlpp.reset();// Pack Packloadlpp.addTemperature(1,temperature);lpp.addRelativeHumidity(2,humidity);lpp.addBarometricPressure(3,pressure);lpp.addAccelerometer(4,accelerometer[0],accelerometer[1],accelerometer[2]);lpp.addGyrometer(5,gyroscope[0],gyroscope[1],gyroscope[2]);// Debug Print DataSerial.print("| Hum[%]: ");Serial.print(humidity,2);Serial.print(" | Temp[C]: ");Serial.print(temperature,2);Serial.print(" | Pres[hPa]: ");Serial.print(pressure,2);Serial.print(" | Acc[mg]: ");Serial.print(accelerometer[0]);Serial.print(" ");Serial.print(accelerometer[1]);Serial.print(" ");Serial.print(accelerometer[2]);Serial.print(" | Gyr[mdps]: ");Serial.print(gyroscope[0]);Serial.print(" ");Serial.print(gyroscope[1]);Serial.print(" ");Serial.print(gyroscope[2]);}voiddo_send(osjob_t*j){// Check if there is not a current TX/RX job runningif(LMIC.opmode&OP_TXRXPEND){Serial.println(F("OP_TXRXPEND, not sending"));}else{//total_count= 1251;//active_count = 44;//readSensors();// Prepare upstream data transmission at the next possible time.lpp.reset();lpp.addDigitalInput(1,active_count);lpp.addDigitalInput(2,total_count);Serial.print(" | Active count: ");Serial.print(active_count);Serial.print(" | Total count: ");Serial.print(total_count);Serial.print(" |");LMIC_setTxData2(1,lpp.getBuffer(),lpp.getSize(),0);Serial.println(F("Packet queued"));}// Next TX is scheduled after TX_COMPLETE event.}voidonEvent(ev_tev){Serial.print(os_getTime());Serial.print(": ");switch(ev){caseEV_SCAN_TIMEOUT:Serial.println(F("EV_SCAN_TIMEOUT"));break;caseEV_BEACON_FOUND:Serial.println(F("EV_BEACON_FOUND"));break;caseEV_BEACON_MISSED:Serial.println(F("EV_BEACON_MISSED"));break;caseEV_BEACON_TRACKED:Serial.println(F("EV_BEACON_TRACKED"));break;caseEV_JOINING:Serial.println(F("EV_JOINING"));break;caseEV_JOIN_TXCOMPLETE:Serial.println(F("EV_JOIN_TXCOMPLETE"));break;caseEV_JOINED:Serial.println(F("EV_JOINED"));{u4_tnetid=0;devaddr_tdevaddr=0;u1_tnwkKey[16];u1_tartKey[16];LMIC_getSessionKeys(&netid,&devaddr,nwkKey,artKey);Serial.print("netid: ");Serial.println(netid,DEC);Serial.print("devaddr: ");Serial.println(devaddr,HEX);Serial.print("artKey: ");for(size_ti=0;i<sizeof(artKey);++i){if(i!=0)Serial.print("-");Serial.print(artKey[i],HEX);}Serial.println("");Serial.print("nwkKey: ");for(size_ti=0;i<sizeof(nwkKey);++i){if(i!=0)Serial.print("-");Serial.print(nwkKey[i],HEX);}Serial.println("");}// Disable link check validation (automatically enabled// during join, but because slow data rates change max TX// size, we don't use it in this example.LMIC_setLinkCheckMode(0);break;/* || This event is defined but not used in the code. No || point in wasting codespace on it. || || case EV_RFU1: || Serial.println(F("EV_RFU1")); || break; */caseEV_JOIN_FAILED:Serial.println(F("EV_JOIN_FAILED"));break;caseEV_REJOIN_FAILED:Serial.println(F("EV_REJOIN_FAILED"));break;break;caseEV_TXCOMPLETE:Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));if(LMIC.txrxFlags&TXRX_ACK)Serial.println(F("Received ack"));if(LMIC.dataLen){Serial.println(F("Received "));Serial.println(LMIC.dataLen);Serial.println(F(" bytes of payload"));total_count++;active_count++;}// Schedule next transmissionos_setTimedCallback(&sendjob,os_getTime()+sec2osticks(TX_INTERVAL),do_send);break;caseEV_LOST_TSYNC:Serial.println(F("EV_LOST_TSYNC"));break;caseEV_RESET:Serial.println(F("EV_RESET"));break;caseEV_RXCOMPLETE:// data received in ping slotSerial.println(F("EV_RXCOMPLETE"));break;caseEV_LINK_DEAD:Serial.println(F("EV_LINK_DEAD"));break;caseEV_LINK_ALIVE:Serial.println(F("EV_LINK_ALIVE"));break;/* || This event is defined but not used in the code. No || point in wasting codespace on it. || || case EV_SCAN_FOUND: || Serial.println(F("EV_SCAN_FOUND")); || break; */caseEV_TXSTART:Serial.println(F("EV_TXSTART"));break;default:Serial.print(F("Unknown event: "));Serial.println((unsigned)ev);break;}}voidsetup(){// Initialize I2C bus.DEV_I2C.begin();AccGyr=newLSM6DSOSensor(&DEV_I2C);AccGyr->Enable_X();AccGyr->Enable_G();PressTemp=newLPS22HHSensor(&DEV_I2C);PressTemp->Enable();HumTemp=newHTS221Sensor(&DEV_I2C);HumTemp->Enable();delay(5000);while(!Serial);Serial.begin(9600);Serial.println(F("Starting"));#if defined(ARDUINO_DISCO_L072CZ_LRWAN1)SPI.setMOSI(RADIO_MOSI_PORT);SPI.setMISO(RADIO_MISO_PORT);SPI.setSCLK(RADIO_SCLK_PORT);SPI.setSSEL(RADIO_NSS_PORT);// SPI.begin();#endif#ifdef VCC_ENABLE// For Pinoccio Scout boardspinMode(VCC_ENABLE,OUTPUT);digitalWrite(VCC_ENABLE,HIGH);delay(1000);#endif// LMIC initos_init();// Reset the MAC state. Session and pending data transfers will be discarded.LMIC_reset();// allow much more clock error than the X/1000 default. See:// https://github.com/mcci-catena/arduino-lorawan/issues/74#issuecomment-462171974// https://github.com/mcci-catena/arduino-lmic/commit/42da75b56#diff-16d75524a9920f5d043fe731a27cf85aL633// the X/1000 means an error rate of 0.1%; the above issue discusses using// values up to 10%. so, values from 10 (10% error, the most lax) to 1000// (0.1% error, the most strict) can be used.LMIC_setClockError(1*MAX_CLOCK_ERROR/40);LMIC_setLinkCheckMode(0);LMIC_setDrTxpow(DR_SF8,20);LMIC_selectSubBand(1);// Start job (sending automatically starts OTAA too)do_send(&sendjob);}voidloop(){os_runloop_once();}namespaceArduino_LMIC{classHalConfiguration_Disco_L072cz_Lrwan1_t:publicHalConfiguration_t{public:enumDIGITAL_PINS:uint8_t{PIN_SX1276_NSS=37,PIN_SX1276_NRESET=33,PIN_SX1276_DIO0=38,PIN_SX1276_DIO1=39,PIN_SX1276_DIO2=40,PIN_SX1276_RXTX=21,};virtualboolqueryUsingTcxo(void)override{returnfalse;};};// save some typing by bringing the pin numbers into scopestaticHalConfiguration_Disco_L072cz_Lrwan1_tmyConfig;staticconstHalPinmap_tmyPinmap={.nss=HalConfiguration_Disco_L072cz_Lrwan1_t::PIN_SX1276_NSS,.rxtx=HalConfiguration_Disco_L072cz_Lrwan1_t::PIN_SX1276_RXTX,.rst=HalConfiguration_Disco_L072cz_Lrwan1_t::PIN_SX1276_NRESET,.dio={HalConfiguration_Disco_L072cz_Lrwan1_t::PIN_SX1276_DIO0,HalConfiguration_Disco_L072cz_Lrwan1_t::PIN_SX1276_DIO1,HalConfiguration_Disco_L072cz_Lrwan1_t::PIN_SX1276_DIO2,},.rxtx_rx_active=1,.rssi_cal=10,.spi_freq=8000000,/* 8MHz */.pConfig=&myConfig};};// end namespace Arduino_LMIC
Comments