The Traffic Forecast Application Of Urban Road Reconstruction And Expansion Problem

In recent years,with the continuous development of China’s national economy,private cars have become an indispensable and important means of transportation in our daily lives.After the car is parked in the hot summer,the temperature inside the car will suddenly rise.Checking the relevant literature,it can be found that the temperature inside the car will increase rapidly by 6-7℃ when the window is closed after parking.In the same environment,children’s body temperature rises 3-5 times faster than adults.In recent years,due to the carelessness of the driver,the children in the private car and the school bus have been mistakenly left behind,resulting in high-temperature burns and even deaths in the car.Therefore,how to prevent children from being mistakenly left in the car and avoiding the high temperature caused by casualties in the car has become a social public problem that needs to be solved urgently.The purpose of this project is to design an early warning system that can notify the driver in time when the personnel(especially infants and young children)are mistakenly locked in the car.The system uses intelligent voice technology to detect the help sounds of the accidentally locked personnel(including the baby’s Crying sound),based on the feature matching algorithm to determine whether the vehicle is in the wrong position,such as detecting that someone is locked in the car when the system will send an alarm message to the owner,the alarm mode is set to three levels,according to different rescue time points Different alarm methods are used.In this paper,the voice recognition scheme is designed by using the dedicated speech recognition chip WM9714.The chip has a recording mode and an identification mode.Before the recognition mode,the target vocabulary is entered into the chip.In this project,the shouts of the driver’s family can be entered into the system first,such as: "Help","Dad","Mom","WuWu" crying and other sounds.After the target vocabulary is entered into the chip,the working mode can be transferred to the voice recognition mode.When working,the system compares the current voice with the target vocabulary that has been previously recorded in the storage body.If the voice features match,the corresponding output of the chip is Output high or low.After that,the system adopts single-chip technology and wireless sensor network technology to realize the processing of the voice matching signal sent by the voice recognition module.After the driver asks for the distress signal,the voice recognition module will send an alarm message to the mobile phone.If the driver does not process the call for a certain period of time,the system will make an alarm call to the mobile phone.If the call is still not processed,the vehicle itself will sound an alarm and attract the surrounding personnel.Attention,thereby reducing the occurrence of personal safety accidents in the vehicle.