Priyank Kalgaonkar / Electronically Connected Intelligent Shelves

The main objective is to reduce loss in revenue due to delayed shelf-restocking (when product is in-stock in the store but not stocked on the shelf) and inaccurate forecasting (under-estimating future product sales) practices. The result is to demonstrate inventory automation using ECIS system by enabling the means to monitor and track store inventory in real-time, perform data analysis remotely in cloud, improve shopping experience for the consumers and increase revenue for the retailers in the retail industry. Machine Learning code can be found on my GitHub: https://github.com/priyankkalgaonkar

Dependencies:   mbed

ECE 53301: Wireless and Multimedia Computing Final Project Report – Group 1

Inventory Automation Using Electronically Connected Intelligent Shelves.

Code Developed by: Priyank Kalgaonkar.

Department of Electrical and Computer Engineering, Purdue School of Engineering and Technology at IUPUI.

Submitted as partial fulfillment for the requirement of Fall 2019 - ECE 53301-26877: Wireless and Multimedia Computing course.

Date of Submission: December 12, 2019.

FinalVersionECISsystem/main.cpp@0:b0c4c25d37ab, 2019-12-12 (annotated)

Committer:
priyank12p
Date:
Thu Dec 12 01:04:52 2019 +0000
Revision:
0:b0c4c25d37ab
Child:
1:45dc700211a7
Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
priyank12p 0:b0c4c25d37ab 1 /**
priyank12p 0:b0c4c25d37ab 2 Group 1: Electronically Controlled Intelligent Shelves
priyank12p 0:b0c4c25d37ab 3 Developed by: Priyank Kalgaonkar
priyank12p 0:b0c4c25d37ab 4 ECE53301 - Final Project - Fall 2019
priyank12p 0:b0c4c25d37ab 5 **/
priyank12p 0:b0c4c25d37ab 6
priyank12p 0:b0c4c25d37ab 7 #include "mbed.h"
priyank12p 0:b0c4c25d37ab 8 #include "hcsr04.h"
priyank12p 0:b0c4c25d37ab 9 #include "ESP8266.h"
priyank12p 0:b0c4c25d37ab 10 #include "math.h"
priyank12p 0:b0c4c25d37ab 11 #define CloudIP "184.106.153.149" //Raw IP Address of ThingSpeak Cloud Server
priyank12p 0:b0c4c25d37ab 12
priyank12p 0:b0c4c25d37ab 13 DigitalOut RLed(LED1); //Onboard Red LED = Shelf Out of Stock
priyank12p 0:b0c4c25d37ab 14 DigitalOut GLed(LED2); //Onboard Green LED = All OK
priyank12p 0:b0c4c25d37ab 15 DigitalOut BLed(LED3); //Onboard Blue LED for Wifi Tx Indication
priyank12p 0:b0c4c25d37ab 16 HCSR04 usensor1(D8,D9); //ECHO Pin=D9, TRIG Pin=D8
priyank12p 0:b0c4c25d37ab 17 HCSR04 usensor2(D7,D6); //ECHO Pin=D7, TRIG Pin=D6
priyank12p 0:b0c4c25d37ab 18 Serial pc(USBTX,USBRX); //Serial Communication with PC
priyank12p 0:b0c4c25d37ab 19 ESP8266 wifi(PTC17, PTC16, 115200); //Tx Pin:PTC17; Rx Pin:PTC17; Baud rate:115200
priyank12p 0:b0c4c25d37ab 20
priyank12p 0:b0c4c25d37ab 21 void wifi_send(void);; //Connect and Push Data Channel to Cloud Server
priyank12p 0:b0c4c25d37ab 22
priyank12p 0:b0c4c25d37ab 23 int num = 0;
priyank12p 0:b0c4c25d37ab 24 int distance1, distance2;
priyank12p 0:b0c4c25d37ab 25 float dist_remaining1, dist_percent1, dist_remaining2, dist_percent2;
priyank12p 0:b0c4c25d37ab 26 char snd[255],rcv[1000]; //snd: send command to ESP8266
priyank12p 0:b0c4c25d37ab 27 //rcv: receive response from ESP8266
priyank12p 0:b0c4c25d37ab 28
priyank12p 0:b0c4c25d37ab 29 int main()
priyank12p 0:b0c4c25d37ab 30 {
priyank12p 0:b0c4c25d37ab 31 pc.baud(115200); //Baud Rate of 115200 for Tera Term
priyank12p 0:b0c4c25d37ab 32
priyank12p 0:b0c4c25d37ab 33 pc.printf("######## ###### #### ###### ###### ## ## ###### ######## ######## ## ##\n\r");
priyank12p 0:b0c4c25d37ab 34 pc.printf("## ## ## ## ## ## ## ## ## ## ## ## ## ## ### ###\n\r");
priyank12p 0:b0c4c25d37ab 35 pc.printf("## ## ## ## ## #### ## ## ## #### ####\n\r");
priyank12p 0:b0c4c25d37ab 36 pc.printf("###### ## ## ###### ###### ## ###### ## ###### ## ### ##\n\r");
priyank12p 0:b0c4c25d37ab 37 pc.printf("## ## ## ## ## ## ## ## ## ## ##\n\r");
priyank12p 0:b0c4c25d37ab 38 pc.printf("## ## ## ## ## ## ## ## ## ## ## ## ## ## ##\n\r");
priyank12p 0:b0c4c25d37ab 39 pc.printf("######## ###### #### ###### ###### ## ###### ## ######## ## ##\n\r");
priyank12p 0:b0c4c25d37ab 40 pc.printf("-----------------------------------------------------------------------------------------\n\r");
priyank12p 0:b0c4c25d37ab 41 pc.printf("Project By: Priyank Kalgaonkar, Sahil Kumar, Linknath Surya Balasubramanian\n\r");
priyank12p 0:b0c4c25d37ab 42 pc.printf("-----------------------------------------------------------------------------------------\n\r\n\r");
priyank12p 0:b0c4c25d37ab 43
priyank12p 0:b0c4c25d37ab 44 pc.printf("Initial Setup\r\n");
priyank12p 0:b0c4c25d37ab 45 wifi.SetMode(1); //Set ESP mode to 1
priyank12p 0:b0c4c25d37ab 46 wifi.RcvReply(rcv, 1000); //Receive a response from ESP
priyank12p 0:b0c4c25d37ab 47 pc.printf("%s\r", rcv);
priyank12p 0:b0c4c25d37ab 48
priyank12p 0:b0c4c25d37ab 49 pc.printf("Conneting to WiFi\r\n"); //AP Setup Initialization
priyank12p 0:b0c4c25d37ab 50 wifi.Join("Priyank's iPhone", "audi1155");
priyank12p 0:b0c4c25d37ab 51 wifi.RcvReply(rcv, 1000);
priyank12p 0:b0c4c25d37ab 52 pc.printf("%s\n", rcv);
priyank12p 0:b0c4c25d37ab 53 wait(8);
priyank12p 0:b0c4c25d37ab 54
priyank12p 0:b0c4c25d37ab 55 wifi.GetIP(rcv); //Obtains an IP address from the AP
priyank12p 0:b0c4c25d37ab 56
priyank12p 0:b0c4c25d37ab 57 while (1)
priyank12p 0:b0c4c25d37ab 58 {
priyank12p 0:b0c4c25d37ab 59 wifi_send();
priyank12p 0:b0c4c25d37ab 60
priyank12p 0:b0c4c25d37ab 61 RLed = 1;
priyank12p 0:b0c4c25d37ab 62 GLed = 1;
priyank12p 0:b0c4c25d37ab 63 BLed = 0;
priyank12p 0:b0c4c25d37ab 64 wait(2.0f);
priyank12p 0:b0c4c25d37ab 65 }
priyank12p 0:b0c4c25d37ab 66 }
priyank12p 0:b0c4c25d37ab 67
priyank12p 0:b0c4c25d37ab 68 void wifi_send(void)
priyank12p 0:b0c4c25d37ab 69 {
priyank12p 0:b0c4c25d37ab 70 while(num<1000000000000)
priyank12p 0:b0c4c25d37ab 71 {
priyank12p 0:b0c4c25d37ab 72 num=num+1;
priyank12p 0:b0c4c25d37ab 73 pc.printf("Cloud Sync Instance #: %d\n\r", num);
priyank12p 0:b0c4c25d37ab 74 pc.printf("Syncing Data with Cloud, Please Wait.\n\r");
priyank12p 0:b0c4c25d37ab 75
priyank12p 0:b0c4c25d37ab 76 //Ultrasound Sensor (HC-SR04) #1 Initialization
priyank12p 0:b0c4c25d37ab 77 int a = 30;
priyank12p 0:b0c4c25d37ab 78 usensor1.start();
priyank12p 0:b0c4c25d37ab 79 wait_ms(500);
priyank12p 0:b0c4c25d37ab 80
priyank12p 0:b0c4c25d37ab 81 //Calculating Distance Percentage Remaining for Sensor # 1
priyank12p 0:b0c4c25d37ab 82 distance1 = usensor1.get_dist_cm();
priyank12p 0:b0c4c25d37ab 83 dist_remaining1 = a-distance1;
priyank12p 0:b0c4c25d37ab 84 dist_percent1 = (dist_remaining1/30)*100;
priyank12p 0:b0c4c25d37ab 85
priyank12p 0:b0c4c25d37ab 86 //Ultrasound Sensor (HC-SR04) #2 Initialization
priyank12p 0:b0c4c25d37ab 87 int b = 30;
priyank12p 0:b0c4c25d37ab 88 usensor2.start();
priyank12p 0:b0c4c25d37ab 89 wait_ms(500);
priyank12p 0:b0c4c25d37ab 90
priyank12p 0:b0c4c25d37ab 91 //Calculating Distance Percentage Remaining for Sensor # 2
priyank12p 0:b0c4c25d37ab 92 distance2 = usensor2.get_dist_cm();
priyank12p 0:b0c4c25d37ab 93 dist_remaining2 = b-distance2;
priyank12p 0:b0c4c25d37ab 94 dist_percent2 = (dist_remaining2/30)*100;
priyank12p 0:b0c4c25d37ab 95
priyank12p 0:b0c4c25d37ab 96 //LED and Tera Term Output
priyank12p 0:b0c4c25d37ab 97 if (distance1<30 && distance2<30) {
priyank12p 0:b0c4c25d37ab 98 RLed = 1;
priyank12p 0:b0c4c25d37ab 99 BLed = 1;
priyank12p 0:b0c4c25d37ab 100 GLed = 0;
priyank12p 0:b0c4c25d37ab 101 //printf("Percent remaining: %f\r", dist_percent1 && dist_percent2);
priyank12p 0:b0c4c25d37ab 102 } else {
priyank12p 0:b0c4c25d37ab 103 GLed = 1;
priyank12p 0:b0c4c25d37ab 104 BLed = 1;
priyank12p 0:b0c4c25d37ab 105 RLed = 0;
priyank12p 0:b0c4c25d37ab 106 printf("Shelves Empty! Replenish Stock.\n\r");
priyank12p 0:b0c4c25d37ab 107 }
priyank12p 0:b0c4c25d37ab 108
priyank12p 0:b0c4c25d37ab 109 //Sending Data to the Cloud Server via ESP8266 WiFi Module
priyank12p 0:b0c4c25d37ab 110 strcpy(snd,"AT+CIPMUX=0\n\r"); //AT+CIPMUX: Enabling Single Channel Mode
priyank12p 0:b0c4c25d37ab 111 wifi.SendCMD(snd);
priyank12p 0:b0c4c25d37ab 112 wait(1);
priyank12p 0:b0c4c25d37ab 113 wifi.RcvReply(rcv, 1000);
priyank12p 0:b0c4c25d37ab 114 wait(1);
priyank12p 0:b0c4c25d37ab 115
priyank12p 0:b0c4c25d37ab 116 sprintf(snd,"AT+CIPSTART=4,\"TCP\",\"%s\",80\n",CloudIP); //Establish TCP connection w/ Cloud Server
priyank12p 0:b0c4c25d37ab 117 wait(1);
priyank12p 0:b0c4c25d37ab 118 wifi.RcvReply(rcv, 1000);
priyank12p 0:b0c4c25d37ab 119 wait(1);
priyank12p 0:b0c4c25d37ab 120
priyank12p 0:b0c4c25d37ab 121 strcpy(snd,"AT+CIPSEND=100\n\r"); //Set length of the data that will be sent
priyank12p 0:b0c4c25d37ab 122 wifi.SendCMD(snd);
priyank12p 0:b0c4c25d37ab 123 pc.printf("%s\r", rcv);
priyank12p 0:b0c4c25d37ab 124 wait(1);
priyank12p 0:b0c4c25d37ab 125 wifi.RcvReply(rcv, 1000);
priyank12p 0:b0c4c25d37ab 126 pc.printf("%s\r", rcv);
priyank12p 0:b0c4c25d37ab 127 wait(1);
priyank12p 0:b0c4c25d37ab 128
priyank12p 0:b0c4c25d37ab 129 //Pushing the data acquired from HC-SR04 Ultrasonic Sensor to Cloud Server via API
priyank12p 0:b0c4c25d37ab 130 //pc.printf("Product X - Sensor 1: ");
priyank12p 0:b0c4c25d37ab 131 sprintf(snd,"GET https://api.thingspeak.com/update?api_key=O59NSRSQZCJ2G6WK&field1=%f\r", dist_percent1);
priyank12p 0:b0c4c25d37ab 132 printf("Product X: Percent Stock Remaining: %f\n\r", dist_percent1);
priyank12p 0:b0c4c25d37ab 133 wifi.SendCMD(snd);
priyank12p 0:b0c4c25d37ab 134 //pc.printf("%s\r",snd);
priyank12p 0:b0c4c25d37ab 135 wait(1);
priyank12p 0:b0c4c25d37ab 136 wifi.RcvReply(rcv, 1000);
priyank12p 0:b0c4c25d37ab 137 pc.printf("%s\r", rcv);
priyank12p 0:b0c4c25d37ab 138
priyank12p 0:b0c4c25d37ab 139 //pc.printf("Product Y - Sensor 2: ");
priyank12p 0:b0c4c25d37ab 140 sprintf(snd,"GET https://api.thingspeak.com/update?api_key=O59NSRSQZCJ2G6WK&field2=%f\n\r\n\r", dist_percent2);
priyank12p 0:b0c4c25d37ab 141 wifi.SendCMD(snd);
priyank12p 0:b0c4c25d37ab 142 //pc.printf("%s\r",snd);
priyank12p 0:b0c4c25d37ab 143 printf("Product Y: Percent Stock Remaining: %f\n\r\n\r", dist_percent2);
priyank12p 0:b0c4c25d37ab 144 wait(1);
priyank12p 0:b0c4c25d37ab 145 wifi.RcvReply(rcv, 1000);
priyank12p 0:b0c4c25d37ab 146 pc.printf("%s\r", rcv);
priyank12p 0:b0c4c25d37ab 147 }
priyank12p 0:b0c4c25d37ab 148 }