Engine Start/Stop Controller With Remote Control Function

With the rapid development of China’s economy, the improvement of national income and theconstruction of roads and the infrastructure. At the same time, the continuous development of thecomputer control technology and the Internet of things make the car plays an important role in theInternet of things. However, the rapid development of automobile industry has brought the hugeenergy crisis and the environmental crisis. With the increase of car ownership, the phenomenon ofcar exhaust and traffic jam become more and more serious. A large amount of emissions will notonly cause air pollution, also may do harm to people’s health. Car is changing the way of travel, andcauses we are concerned about the environment and energy.In the urban traffic, due to the limitation of traffic and road congestion, idle speed state holds alarge proportion in the process of the car driving. The idle speed state will not only waste fuel butalso cause emissions. The rules on vehicle fuel consumption and the emission becomeincreasingly strict, in the face of these pressure, in the case of idle speed,many car manufacturerswill make the engines stall，to save the energy and reduce the emission.In northern China, however, the weather is cold, if don’t preheat the engine before the cardriving, will increase the wear of engine and the load on the battery, reduce the car’s lifetime. Inorder to realize the engine preheating, can remotely start the engine. In recent years, there are lots ofvehicle theft cases, therefore the remote control of the stolen vehicle engine which makes it stall, tomake the search of the stolen vehicles convenient also become a hot issue. Realize the function of caralarm through blocking the oil-way, parking stall by Remote control of car’s engineStart-stop control of automobile engine by some ways is the key to solve the above problems.This system adopts the S3C6410ARM11chip as the core processor, burning Linux3.0.1operatingsystem, Transplant Qt4.7.1graphical interface development libraries, with GPRS module with coreof SIM900A smart phone, loaded the Android operating system and CPLD module with core ofXC95108. Design is stable, reliable car engine start-stop controller. Drivers can control of the carengine through keys, touch screen, GPRS network signal.The focus of this paper is data communication based on TCP under GPRS network, andvalidation data communication reliability, human-computer interaction interface design based on theQt4.7.1, the design and integration of circuit which verify the signal. Code the mobile clientapplications, and verify the validity of the sender. After in-depth research, I solved the problemsuccessfully and detailed instructions. After the test, the system can achieve the desired designrequirements.Innovation points of this paper are as follows: Because the GPRS network have huge coveragerange, and transmitting data using GPRS network signal has higher reliability, so realize remotecontrol of car engine by GPRS network. And verify the reliability of data transmission and theeffectiveness of the control side. At the same time, consider the interference in the process of the car,design validation logic unit to realize signal validity verification, ruled out the invalid signal becauseof the shacks, improve the stability and reliability of the system greatly.