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Dormitory maintenance management system based on stm32+rfid design
2022-06-29 10:40:00 【DS brother Bruce Lee】
1. demand
demand : One bedroom, one label , Scan labels on the device side , Input information such as whether the maintenance is successful or not through the display screen and submit it to the platform
System Architecture : A device end + An upper computer
Hardware selection :
（1）STM32F103RCT6 As the master controller at the equipment end MCU
（2）RC522 As a RF card swiping device at the device end , Reading and writing IC card
（3） Multiple sheets IC card , The simulation represents each dormitory
Realize the idea :
Design a host computer , It is used to manage and view maintenance information , When the maintenance of dormitory equipment or maintenance is completed , adopt STM32 Upper RC522 Brush this bedroom IC card , Identify which bedroom this is , After successful identification, a dialog box pops up on the software , Fill in the event of this repair or overhaul , Click Submit after filling .
The software has two functions :
（1） Registration function ： Each bedroom has one IC card , This card needs to be registered in the maintenance inspection system for the first time , Fill in this IC The information of the dormitory corresponding to the card .
（2） maintenance 、 Maintenance report submission ： When the overhaul is completed 、 After overhaul , Fill in the report .
（3） View history , You can view the repair , All detailed report information of overhaul , Can export execl form , It is convenient for the public to view .
（4） register 、 maintenance 、 Maintenance records are stored in the database , Easy to manage .
Specific functions of the hardware :
STM32 There are two buttons on the , One LCD screen , One RC522 modular , When the terminal swipes the card ,LCD A query prompt will pop up on the display ？ “ Is it maintenance or overhaul ”, Press the button 1 Or press the key 2 after , The card number will be uploaded to the upper computer . The upper computer communicates with the lower computer through serial port .
2. Demonstration effect
3. Host computer software design
3.1 Communication description
The upper computer communicates with the equipment through the serial port , It is used in the upper computer SQLITE The database holds all the key information , In the database 3 A watch , A table stores the maintenance inspection information , One table is the account information , A table is a record of feedback .
A,F39A471B, register
B,F39A471B, Overhaul
C,F39A471B, maintenance
3.2 Build development environment
The upper computer software adopts Qt framework design ,Qt It's a cross platform C++ GUI application framework .Qt It's a 1991 Year by year Qt Company Cross platform development C++ GUI application development framework . It can develop GUI Program , It can also be used to develop non GUI Program , For example, console tools and servers . Simply speaking ,QT It can easily help you make software with interface , It doesn't even require you to put a lot of energy .
QT Official website :https://www.qt.io/
QT Introduction to learning practical column : https://blog.csdn.net/xiaolong1126626497/category_11400392.html
QT5.12.6 Download address ：
https://download.qt.io/archive/qt/5.12/5.12.6/
Open the download link and select the following version to download ：
qt-opensource-windows-x86-5.12.6.exe 13-Nov-2019 07:28 3.7G Details
Installation of network software is interrupted , Otherwise, you will be prompted to enter the account .
During installation , Check one in the first check box mingw 32 The compiler can , The others are OK by default , Click next to continue the installation .
choice MinGW 32-bit compiler ：
choice MinGW 32-bit compiler ：
Once installed , Copy the source code project to the English path , Double click the project file to open .
After the project is opened , Click the green triangle button in the lower left corner to compile and run .
The operation effect is as follows ：
3.3 effect
3.4 Database insert code example
// Create a maintenance information table in the database
void Widget::CreateStudentSurface()
{
// database : Build table , If it exists, it is not created , Create... If it doesn't exist
QSqlQuery sql_query(database);
// The following statement queries whether the specified table exists .
sql_query.exec(QString("select count(*) from sqlite_master where type='table' and name='%1'").arg("student"));
if(sql_query.next())
{
if(sql_query.value(0).toInt()==0)
{
qDebug(" The maintenance inspection record database table does not exist . Ready to create .\n");
// Create a table Create a table statement ：create table <table_name> (f1 type1, f2 type2,…);
/* CREATE TABLE Is a keyword that tells the database system to create a new table . * CREATE TABLE Statement followed by the unique name of the table * Or identification */
/* The following statement : Create a name student Table of , The fields are ID、 Number 、 Location name 、 type 、 event */
QString create_sql = "create table student(id int primary key, number varchar(100),name varchar(100),type varchar(100),enevt varchar(1024))";
sql_query.prepare(create_sql);
if(!sql_query.exec())
{
Log_Text_Display(" Maintenance inspection record database table creation failed .\n");
}
else
{
Log_Text_Display(" The maintenance inspection record database table was created successfully .\n");
}
}
else
{
Log_Text_Display(" The maintenance inspection record database table exists . No need to create .\n");
}
}
}
// Add information
void Widget::on_pushButton_add_student_clicked()
{
QString number=ui->lineEdit_student_number->text();
QString name=ui->lineEdit_student_name->text();
if(number.isEmpty()||name.isEmpty())
{
QMessageBox::information(this," Tips "," Please fill in the data carefully before adding .",
QMessageBox::Ok,QMessageBox::Ok);
return;
}
// Add maintenance inspection location information
LuRu_data(number,name);
}
// Input data Pass in the equipment number and location name
void Widget::LuRu_data(QString number,QString name)
{
// Create a table without a table
CreateStudentSurface();
// Add data to table
// Save data to database
QSqlQuery sql_query(database);
// Query whether there is duplicate data in the original database table
// Query all data
sql_query.prepare("select * from student");
if(!sql_query.exec())
{
Log_Text_Display(" Error querying the maintenance inspection record database .\n");
}
else
{
while(sql_query.next())
{
//ID、 Number 、 Location name 、 type 、 event
// int id = sql_query.value(0).toInt(); //ID
QString find_number = sql_query.value(1).toString(); // Number
QString find_name = sql_query.value(2).toString(); // Location name
QString find_type = sql_query.value(3).toString(); // type
QString find_event = sql_query.value(4).toString(); // event
// Determine whether there is any conflict between the numbers
if(number==find_number)
{
QMessageBox::information(this," Tips "," The number you entered already exists in the database !\n Please fill in .",
QMessageBox::Ok,QMessageBox::Ok);
return;
}
}
}
// Ready to insert data
// The most inquired ID
QString select_max_sql = "select max(id) from student";
int max_id = 0;
sql_query.prepare(select_max_sql);
if(!sql_query.exec())
{
Log_Text_Display(" The maintenance inspection information table is the largest ID To find the failure .\n");
}
else
{
while(sql_query.next())
{
max_id = sql_query.value(0).toInt();
}
Log_Text_Display(QString("data base max id:%1\n").arg(max_id));
// Add data
// insert data Insert statement ：insert into <table_name> values (value1, value2,…);
QString insert_sql = tr("insert into student values(?,?,?,?,?)");
sql_query.prepare(insert_sql);
//ID、 Number 、 Location name 、 type 、 event
sql_query.addBindValue(max_id+1); //id
sql_query.addBindValue(number);
sql_query.addBindValue(name);
sql_query.addBindValue("----");
sql_query.addBindValue("----");
if(!sql_query.exec())
{
Log_Text_Display(" Failed to insert the data in the maintenance inspection information table .\n");
return;
}
else // Insert the success
{
// If the insertion succeeds, the page will be cleared
ui->lineEdit_student_name->clear();
// ui->lineEdit_student_type->clear();
ui->lineEdit_student_number->clear();
}
}
// Update the maintenance inspection information table data display
on_pushButton_update_student_clicked();
}
4. STM32 Equipment end design
If you need all the project source code 、 The source code of the upper computer can be downloaded here ：
https://download.csdn.net/download/xiaolong1126626497/85682742
If you need to see the video demonstration of the project , You can see here ：
be based on STM32+RFID Designed dormitory maintenance management system
4.1 Chinese characters are modeled
4.2 keil engineering
4.3 Hardware connection
RC522 External interface of RF module :
*1--SDA <----->PB5-- Film selection foot
*2--SCK <----->PB4-- Clock line
*3--MOSI<----->PA12-- Output
*4--MISO<----->PA11-- Input
*5-- In the air
*6--GND <----->GND
*7--RST <----->PA8-- Reset the foot
*8--VCC <----->VCC
4.4 main.c Code
#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "RFID_RC522.h"
#include "key.h"
#include "beep.h"
unsigned char SN[4]={
88,88,88,88}; // Default card number
u8 SendBuff[50];
/* The functionality : Print card number */
void print_info(unsigned char *p,int cnt)
{
int i;
for(i=0;i<cnt;i++)
{
printf("0x%X ",p[i]);
}
printf("\r\n");
}
/* The functionality : Card reading number -- The card number of the electronic tag Return value : 1 success 0 Failure */
int ReadCardNumber(void)
{
unsigned char CT[2];// Card type
u8 status=1;
status=RC522_PcdRequest(PICC_REQIDL ,CT);//( Card search mode , Card type ), Successfully returns 0
if(status==MI_OK)// Card search succeeded
{
status=MI_ERR;
status=RC522_PcdAnticoll(SN); // Collision proof , Successfully returns 0,SN Is the address where you read the card number
printf(" Card type :");
print_info(CT,2);// Print type
printf(" Card number :");
print_info(SN,4);// Print card number
return 1;
}
return 0;
}
int main(void)
{
u32 cnt=0;
u8 key=0;
Stm32_Clock_Init(9); // System clock settings
uart_init(72,115200); // The serial port is initialized to 115200
LED_Init(); // Initialization and LED Connected hardware interface
LCD_Init();
KEY_Init();
BEEP_Init();
POINT_COLOR=RED;
RC522_Init(); //RC522
//LCD_DisplayData(24*1,0,24,24,font_data[0]);
//LCD_DisplayData(24*2,0,24,24,1);
//LCD_DisplayData(24*3,0,24,24,2);
DisplayData(24*0,0,24,24,(u8*)font_data[0],WHITE,BLACK);
DisplayData(24*1,0,24,24,(u8*)font_data[1],WHITE,BLACK);
DisplayData(24*2,0,24,24,(u8*)font_data[2],WHITE,BLACK);
DisplayData(24*3,0,24,24,(u8*)font_data[3],WHITE,BLACK);
DisplayData(24*4,0,24,24,(u8*)font_data[4],WHITE,BLACK);
DisplayData(24*5,0,24,24,(u8*)font_data[5],WHITE,BLACK);
DisplayData(24*6,0,24,24,(u8*)font_data[6],WHITE,BLACK);
DisplayData(24*7,0,24,24,(u8*)font_data[7],WHITE,BLACK);
DisplayData(24*8,0,24,24,(u8*)font_data[8],WHITE,BLACK);
DisplayData(24*9,0,24,24,(u8*)font_data[9],WHITE,BLACK);
delay_ms(100);
while(1)
{
// Read the card number
if(ReadCardNumber())
{
DisplayData(0,100,24,24,(u8*)font_data[16],WHITE,BLACK);
DisplayData(24,100,24,24,(u8*)font_data[17],WHITE,BLACK);
sprintf((char*)SendBuff,"%X%X%X%X",SN[0],SN[1],SN[2],SN[3]);
LCD_ShowString(24*3,105,300,300,16," ");
LCD_ShowString(24*3,105,300,300,16,SendBuff);
BEEP=1;
delay_ms(100);
BEEP=0;
// register
DisplayData(0,200,24,24,(u8*)font_data[10],WHITE,BLACK);
DisplayData(24*1,200,24,24,(u8*)font_data[11],WHITE,BLACK);
// Overhaul
DisplayData(24*2+24*3,200,24,24,(u8*)font_data[12],WHITE,BLACK);
DisplayData(24*3+24*3,200,24,24,(u8*)font_data[13],WHITE,BLACK);
// maintenance
DisplayData(24*4+24*6,200,24,24,(u8*)font_data[14],WHITE,BLACK);
DisplayData(24*5+24*6,200,24,24,(u8*)font_data[15],WHITE,BLACK);
while(1)
{
key=KEY_Scan(0);
if(key)
{
printf("key=%d\r\n",key);
// register
if(key==3)
{
sprintf((char*)SendBuff,"A,%X%X%X%X,",SN[0],SN[1],SN[2],SN[3]);
printf("%s\r\n",SendBuff);
}
// Overhaul
else if(key==2)
{
sprintf((char*)SendBuff,"B,%X%X%X%X,",SN[0],SN[1],SN[2],SN[3]);
printf("%s\r\n",SendBuff);
}
// maintenance
else if(key==1)
{
sprintf((char*)SendBuff,"C,%X%X%X%X,",SN[0],SN[1],SN[2],SN[3]);
printf("%s\r\n",SendBuff);
}
break;
}
delay_ms(50);
LED0=!LED0;
}
LCD_Clear(WHITE);
DisplayData(24*0,0,24,24,(u8*)font_data[0],WHITE,BLACK);
DisplayData(24*1,0,24,24,(u8*)font_data[1],WHITE,BLACK);
DisplayData(24*2,0,24,24,(u8*)font_data[2],WHITE,BLACK);
DisplayData(24*3,0,24,24,(u8*)font_data[3],WHITE,BLACK);
DisplayData(24*4,0,24,24,(u8*)font_data[4],WHITE,BLACK);
DisplayData(24*5,0,24,24,(u8*)font_data[5],WHITE,BLACK);
DisplayData(24*6,0,24,24,(u8*)font_data[6],WHITE,BLACK);
DisplayData(24*7,0,24,24,(u8*)font_data[7],WHITE,BLACK);
DisplayData(24*8,0,24,24,(u8*)font_data[8],WHITE,BLACK);
DisplayData(24*9,0,24,24,(u8*)font_data[9],WHITE,BLACK);
}
cnt++;
delay_ms(10);
if(cnt>=20)
{
cnt=0;
LED1=!LED1;
LED0=!LED0;
}
}
}
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