1, traffic guidance information release, mainly refers to the vehicle terminal, radio and television stations, the Internet, the field guidance display equipment (variable traffic information board and traffic guidance display) to release traffic guidance information. In-vehicle navigation system In-vehicle navigation system is responsible for positioning the vehicleInformation such as position, speed and passenger demand is sent to the information control center, which receives the data from the information control center and displays the navigation information according to the needs of the passenger.
2, traffic guidance screen refers to the LED light-emitting secondary control made, used to play the role of traffic guidance display, it is generally applied to the highway, Kewei traffic guidance screen by the screen body, drive system, control system, communication equipment, power system and door frame, box, etc., traffic guidance screen includes graphic guidance signs, It is a multifunctional information display composed of common road signs and variable information signs.
3The application scope of intelligent transportation system: including airport and station passenger flow guidance system, urban traffic intelligent scheduling system, expressway intelligent scheduling system, operational vehicle scheduling management system, vehicle automatic control system, etc. The role of intelligent transportation system: it through the harmony and close cooperation of people, vehicles and roads to improve transportation efficiency, alleviate traffic congestion, improve the road network through capacity, reduce traffic accidents, reduce energy consumption, reduce environmental pollution.
4, this is a relatively low-level use of traffic guidance information system. The automatic generation of guidance information is the core of intelligent traffic guidance information systemBased on dynamic traffic flow allocation optimal control model and algorithm, traffic flow prediction model and other complex traffic analysis models and algorithms, the guidance information is automatically generated by computer software, which is a relatively advanced use of traffic guidance information system.
1, dotnetfx.exe is a process of Microsoft Windows upgrade to.NET technology. This is not a purely systematic procedure, but terminating it can lead to unknowable questionstopic. dumprep.exe is a part of Microsoft's Windows XP operating system that records information about programs that have errors. When an error occurs in a program, the program sends the relevant error message to Microsoft. The program is not a pure system process and is installed for use by third parties.
2, there is a software manager, which can help you turn off some unnecessary startup items. In fact, not all programs need to be started. In addition to anti-virus software, firewall, 360 and the like, or you think it is necessary, the rest can be turned off, and will not lose. Remove boot after loadingIt only starts when you use it.
3, some background service processes: such as the startup service of some uncommon software, they will automatically run when the system starts, occupying system resources. These processes can usually be viewed and closed in the task manager. Temporary task processes: After certain operations, such as software installation and system update, are performed, some temporary task processes may be generated.
4, Svchost is only responsible for providing the conditions for the start of these services, and it cannot realize the function of any service itself, nor can it provide any service for users. Svchost starts system services by calling dynamic link libraries (DLLS) for these system services. In xp there are usually more than four of these processes. It is used to control Windows graphics, including the Start menu, taskbar, desktop, and file management.
1, highly integrated real-time response ability, low power consumption and strong customization. High system stability. The software code is demanding. Scalability and modular design. Rather thanHe has a good blend of techniques. Strong hardware support capability. Strong software support capability. Has a wide range of application field adaptability.
2, specificity is very strong: the advantage of embedded operating system is very strong personalization, the combination of software system and hardware is very close, generally for the hardware system transplantation, even in the same brand, the same series of products also need to be modified according to the changes and increases and decreases of the system hardware. At the same time, for different tasks, it is often necessary to make large changes to the system, and the compilation and download of the program should be combined with the system.
3. Embedded