In every city we have local train for passenger services. It is necessary to know the track status from time to time to avoid major or minor accidents. SensorTile can be used in this project to make the safety device for the railway department to check the status of train track. Which will give safety to passenger for their happiest journey. Train status on track can be found by placing the sensortile on track side bar. the steps shows how we did it.
Step 1: Place the sensorTile on the track as shown in figure.
Step 2: Open the Mobile STblueMS app to record the data.
Step 3: Start scanning the device to record data.
Step 4: Once the device is connected to app it shows the connected devices list.
Step 5: TVibrational level in the magnetometer
he app on start indicates the basic parameters.
Step 6: Wait until the train approach the sensor.
Step 7: When the train moving closer to the Sensor Tile it identify the patterns of vibrations.
Step 8: The data can be visualized in the mobile app and stored in SD card. For future reference the data can be send as email.
Step 9 : The data is send to the official on the track when train is rolling.
Step 10: The analysis is carried out when the train is approaching, on and left the SensorTile.
The fault level in the analysis is small, so no danger to the passengers but it need some maintenance for safety purpose.
Video of train status on the track.
This is how we are going to check the status of train on the track if the vibrations are high means their is a fault in the rolling wheels. This leads to safety in the city and as well as to the passengers.
/**
******************************************************************************
* @file main.c
* @author Central Labs
* @version V2.0.0
* @date 27-April-2017
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2016 STMicroelectronics International N.V.
* All rights reserved.</center></h2>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
*
* 1. Redistribution of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of other
* contributors to this software may be used to endorse or promote products
* derived from this software without specific written permission.
* 4. This software, including modifications and/or derivative works of this
* software, must execute solely and exclusively on microcontroller or
* microprocessor devices manufactured by or for STMicroelectronics.
* 5. Redistribution and use of this software other than as permitted under
* this license is void and will automatically terminate your rights under
* this license.
*
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "datalog_application.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define DATAQUEUE_SIZE ((uint32_t)100)
typedef enum
{
THREAD_1 = 0,
THREAD_2
} Thread_TypeDef;
/* Private variables ---------------------------------------------------------*/
osThreadId GetDataThreadId, WriteDataThreadId;
osMessageQId dataQueue_id;
osMessageQDef(dataqueue, DATAQUEUE_SIZE, int);
osPoolId sensorPool_id;
osPoolDef(sensorPool, DATAQUEUE_SIZE, T_SensorsData);
osSemaphoreId readDataSem_id;
osSemaphoreDef(readDataSem);
osSemaphoreId doubleTapSem_id;
osSemaphoreDef(doubleTapSem);
/* LoggingInterface = USB_Datalog --> Save sensors data on SDCard (enable with double click) */
/* LoggingInterface = SDCARD_Datalog --> Send sensors data via USB */
LogInterface_TypeDef LoggingInterface = USB_Datalog;
USBD_HandleTypeDef USBD_Device;
static volatile uint8_t MEMSInterrupt = 0;
volatile uint8_t no_H_HTS221 = 0;
volatile uint8_t no_T_HTS221 = 0;
void *LSM6DSM_X_0_handle = NULL;
void *LSM6DSM_G_0_handle = NULL;
void *LSM303AGR_X_0_handle = NULL;
void *LSM303AGR_M_0_handle = NULL;
void *LPS22HB_P_0_handle = NULL;
void *LPS22HB_T_0_handle = NULL;
void *HTS221_H_0_handle = NULL;
void *HTS221_T_0_handle = NULL;
/* Private function prototypes -----------------------------------------------*/
static void GetData_Thread(void const *argument);
static void WriteData_Thread(void const *argument);
static void Error_Handler( void );
static void initializeAllSensors( void );
void enableAllSensors( void );
void disableAllSensors( void );
void setOdrAllSensors( void );
void dataTimer_Callback(void const *arg);
void dataTimerStart(void);
void dataTimerStop(void);
osTimerId sensorTimId;
osTimerDef(SensorTimer, dataTimer_Callback);
uint32_t exec;
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
HAL_Init();
/* Configure the System clock to 80 MHz */
SystemClock_Config();
if(LoggingInterface == USB_Datalog)
{
/* Initialize LED */
BSP_LED_Init(LED1);
BSP_LED_Off(LED1);
}
/* enable USB power on Pwrctrl CR2 register */
HAL_PWREx_EnableVddUSB();
if(LoggingInterface == USB_Datalog) /* Configure the USB */
{
/*** USB CDC Configuration ***/
/* Init Device Library */
USBD_Init(&USBD_Device, &VCP_Desc, 0);
/* Add Supported Class */
USBD_RegisterClass(&USBD_Device, USBD_CDC_CLASS);
/* Add Interface callbacks for AUDIO and CDC Class */
USBD_CDC_RegisterInterface(&USBD_Device, &USBD_CDC_fops);
/* Start Device Process */
USBD_Start(&USBD_Device);
}
else /* Configure the SDCard */
{
DATALOG_SD_Init();
}
/* Thread 1 definition */
osThreadDef(THREAD_1, GetData_Thread, osPriorityAboveNormal, 0, configMINIMAL_STACK_SIZE*4);
/* Thread 2 definition */
osThreadDef(THREAD_2, WriteData_Thread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE*4);
/* Start thread 1 */
GetDataThreadId = osThreadCreate(osThread(THREAD_1), NULL);
/* Start thread 2 */
WriteDataThreadId = osThreadCreate(osThread(THREAD_2), NULL);
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
for (;;);
}
/**
* @brief Get data raw from sensors to queue
* @param thread not used
* @retval None
*/
static void GetData_Thread(void const *argument)
{
(void) argument;
uint8_t doubleTap = 0;
T_SensorsData *mptr;
sensorPool_id = osPoolCreate(osPool(sensorPool));
dataQueue_id = osMessageCreate(osMessageQ(dataqueue), NULL);
readDataSem_id = osSemaphoreCreate(osSemaphore(readDataSem), 1);
osSemaphoreWait(readDataSem_id, osWaitForever);
doubleTapSem_id = osSemaphoreCreate(osSemaphore(doubleTapSem), 1);
osSemaphoreWait(doubleTapSem_id, osWaitForever);
/* Configure and disable all the Chip Select pins */
Sensor_IO_SPI_CS_Init_All();
/* Initialize and Enable the available sensors */
initializeAllSensors();
enableAllSensors();
if(LoggingInterface == USB_Datalog)
{
dataTimerStart();
}
for (;;)
{
osSemaphoreWait(readDataSem_id, osWaitForever);
if(MEMSInterrupt && LoggingInterface == SDCARD_Datalog)
{
MEMSInterrupt = 0;
BSP_ACCELERO_Get_Double_Tap_Detection_Status_Ext(LSM6DSM_X_0_handle, &doubleTap);
if(doubleTap)
{
if(SD_Log_Enabled)
{
dataTimerStop();
osMessagePut(dataQueue_id, 0x00000007, osWaitForever);
}
else
{
osMessagePut(dataQueue_id, 0x00000007, osWaitForever);
}
}
}
else
{
/* Try to allocate a memory block and check if is not NULL */
mptr = osPoolAlloc(sensorPool_id);
if(mptr != NULL)
{
/* Get Data from Sensors */
if(getSensorsData(mptr) == COMPONENT_OK)
{
/* Push the new memory Block in the Data Queue */
if(osMessagePut(dataQueue_id, (uint32_t)mptr, osWaitForever) != osOK)
{
Error_Handler();
}
}
else
{
Error_Handler();
}
}
else
{
Error_Handler();
}
}
}
}
/**
* @brief Write data in the queue on file or streaming via USB
* @param argument not used
* @retval None
*/
static void WriteData_Thread(void const *argument)
{
(void) argument;
osEvent evt;
T_SensorsData *rptr;
int size;
char data_s[256];
for (;;)
{
evt = osMessageGet(dataQueue_id, osWaitForever); // wait for message
if (evt.status == osEventMessage)
{
if(evt.value.v == 0x00000007)
{
if (SD_Log_Enabled)
{
DATALOG_SD_Log_Disable();
SD_Log_Enabled=0;
}
else
{
while(SD_Log_Enabled != 1)
{
if(DATALOG_SD_Log_Enable())
{
SD_Log_Enabled=1;
osDelay(100);
dataTimerStart();
}
else
{
//DATALOG_SD_Log_Disable();
DATALOG_SD_DeInit();
DATALOG_SD_Init();
osDelay(100);
}
}
}
}
else
{
rptr = evt.value.p;
if(LoggingInterface == USB_Datalog)
{
size = sprintf(data_s, "TimeStamp: %d\r\n Acc_X: %d, Acc_Y: %d, Acc_Z :%d\r\n Gyro_X:%d, Gyro_Y:%d, Gyro_Z:%d\r\n Magn_X:%d, Magn_Y:%d, Magn_Z:%d\r\n Press:%5.2f, Temp:%5.2f, Hum:%4.1f\r\n",
rptr->ms_counter,
(int)rptr->acc.AXIS_X, (int)rptr->acc.AXIS_Y, (int)rptr->acc.AXIS_Z,
(int)rptr->gyro.AXIS_X, (int)rptr->gyro.AXIS_Y, (int)rptr->gyro.AXIS_Z,
(int)rptr->mag.AXIS_X, (int)rptr->mag.AXIS_Y, (int)rptr->mag.AXIS_Z,
rptr->pressure, rptr->temperature, rptr->humidity);
osPoolFree(sensorPool_id, rptr); // free memory allocated for message
BSP_LED_Toggle(LED1);
CDC_Fill_Buffer(( uint8_t * )data_s, size);
}
else
{
size = sprintf(data_s, "%d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %5.2f, %5.2f, %4.1f\r\n",
rptr->ms_counter,
(int)rptr->acc.AXIS_X, (int)rptr->acc.AXIS_Y, (int)rptr->acc.AXIS_Z,
(int)rptr->gyro.AXIS_X, (int)rptr->gyro.AXIS_Y, (int)rptr->gyro.AXIS_Z,
(int)rptr->mag.AXIS_X, (int)rptr->mag.AXIS_Y, (int)rptr->mag.AXIS_Z,
rptr->pressure, rptr->temperature, rptr->humidity);
osPoolFree(sensorPool_id, rptr); // free memory allocated for message
DATALOG_SD_writeBuf(data_s, size);
}
}
}
}
}
void dataTimer_Callback(void const *arg)
{
osSemaphoreRelease(readDataSem_id);
}
void dataTimerStart(void)
{
osStatus status;
// Create periodic timer
exec = 1;
sensorTimId = osTimerCreate(osTimer(SensorTimer), osTimerPeriodic, &exec);
if (sensorTimId) {
status = osTimerStart (sensorTimId, DATA_PERIOD_MS); // start timer
if (status != osOK) {
// Timer could not be started
}
}
}
void dataTimerStop(void)
{
osTimerStop(sensorTimId);
}
/**
* @brief Initialize all sensors
* @param None
* @retval None
*/
static void initializeAllSensors( void )
{
if (BSP_ACCELERO_Init( LSM6DSM_X_0, &LSM6DSM_X_0_handle ) != COMPONENT_OK)
{
while(1);
}
if (BSP_GYRO_Init( LSM6DSM_G_0, &LSM6DSM_G_0_handle ) != COMPONENT_OK)
{
while(1);
}
if (BSP_ACCELERO_Init( LSM303AGR_X_0, &LSM303AGR_X_0_handle ) != COMPONENT_OK)
{
while(1);
}
if (BSP_MAGNETO_Init( LSM303AGR_M_0, &LSM303AGR_M_0_handle ) != COMPONENT_OK)
{
while(1);
}
if (BSP_PRESSURE_Init( LPS22HB_P_0, &LPS22HB_P_0_handle ) != COMPONENT_OK)
{
while(1);
}
if (BSP_TEMPERATURE_Init( LPS22HB_T_0, &LPS22HB_T_0_handle ) != COMPONENT_OK)
{
while(1);
}
if(BSP_TEMPERATURE_Init( HTS221_T_0, &HTS221_T_0_handle ) == COMPONENT_ERROR)
{
no_T_HTS221 = 1;
}
if(BSP_HUMIDITY_Init( HTS221_H_0, &HTS221_H_0_handle ) == COMPONENT_ERROR)
{
no_H_HTS221 = 1;
}
if(LoggingInterface == SDCARD_Datalog)
{
/* Enable HW Double Tap detection */
BSP_ACCELERO_Enable_Double_Tap_Detection_Ext(LSM6DSM_X_0_handle, INT2_PIN);
BSP_ACCELERO_Set_Tap_Threshold_Ext(LSM6DSM_X_0_handle, LSM6DSM_TAP_THRESHOLD_MID);
}
}
/**
* @brief Enable all sensors
* @param None
* @retval None
*/
void enableAllSensors( void )
{
BSP_ACCELERO_Sensor_Enable( LSM6DSM_X_0_handle );
BSP_GYRO_Sensor_Enable( LSM6DSM_G_0_handle );
BSP_ACCELERO_Sensor_Enable( LSM303AGR_X_0_handle );
BSP_MAGNETO_Sensor_Enable( LSM303AGR_M_0_handle );
BSP_PRESSURE_Sensor_Enable( LPS22HB_P_0_handle );
BSP_TEMPERATURE_Sensor_Enable( LPS22HB_T_0_handle );
if(!no_T_HTS221)
{
BSP_TEMPERATURE_Sensor_Enable( HTS221_T_0_handle );
}
if(!no_H_HTS221)
{
BSP_HUMIDITY_Sensor_Enable( HTS221_H_0_handle );
}
}
/**
* @brief Set ODR all sensors
* @param None
* @retval None
*/
void setOdrAllSensors( void )
{
BSP_ACCELERO_Set_ODR_Value( LSM303AGR_X_0_handle, ACCELERO_ODR);
BSP_MAGNETO_Set_ODR_Value( LSM303AGR_M_0_handle, MAGNETO_ODR);
BSP_GYRO_Set_ODR_Value(LSM6DSM_G_0_handle, GYRO_ODR);
BSP_PRESSURE_Set_ODR_Value( LPS22HB_P_0_handle, PRESSURE_ODR);
BSP_TEMPERATURE_Set_ODR_Value( HTS221_T_0_handle, TEMPERATURE_ODR);
BSP_HUMIDITY_Set_ODR_Value( HTS221_H_0_handle, TEMPERATURE_ODR );
}
/**
* @brief Disable all sensors
* @param None
* @retval None
*/
void disableAllSensors( void )
{
BSP_ACCELERO_Sensor_Disable( LSM6DSM_X_0_handle );
BSP_ACCELERO_Sensor_Disable( LSM303AGR_X_0_handle );
BSP_GYRO_Sensor_Disable( LSM6DSM_G_0_handle );
BSP_MAGNETO_Sensor_Disable( LSM303AGR_M_0_handle );
BSP_HUMIDITY_Sensor_Disable( HTS221_H_0_handle );
BSP_TEMPERATURE_Sensor_Disable( HTS221_T_0_handle );
BSP_TEMPERATURE_Sensor_Disable( LPS22HB_T_0_handle );
BSP_PRESSURE_Sensor_Disable( LPS22HB_P_0_handle );
}
/**
* @brief EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback( uint16_t GPIO_Pin )
{
MEMSInterrupt=1;
osSemaphoreRelease(readDataSem_id);
}
/**
* @brief This function is executed in case of error occurrence
* @param None
* @retval None
*/
static void Error_Handler( void )
{
while (1)
{}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{}
}
#endif
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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