基于单片机的汽车燃油量检测及显示系统设计.doc
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- 关 键 词:
- 基于 单片机 汽车 燃油 检测 显示 系统 设计
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1、摘 要汽车燃油量检测是汽车电子电器系统的重要组成部分。通过对某汽车生产企业的调研显示,目前汽车上的油量表多数仍为三刻度式仪表,由于使用的油量传感器的限制,这些油量表有一个比较大的缺点就是精度较低,系统不稳定。针对这种情况,作者在分析和研究了各种汽车燃油显示装置和检测方法的基础上,提出了一种基于PIC单片机的燃油检测及显示系统。论文首先对汽车燃油检测及显示系统这一课题的必要性进行论述,对现阶段燃油检测系统的研究情况进行概括。对汽车燃油检测的工作原理,检测系统的显示方式进行分析。然后选择合适的传感器、单片机、显示装置和其他必需设备,自主设计了基于PIC单片机的燃油检测及显示系统。软件设计中,通过中
2、值滤波等方法排除错误信号的干扰。搭建硬件平台后,编写系统软件,进行验证性试验,分析了油耗检测系统所采用的理论的可行性。汽车燃油检测系统在单片机的控制下,经系统软件剔除错误信号,通过步进电机带动油量表指针转动将油箱油量准确显示在油量表上。同时,系统设计了报警装置,在油量少于设定值或者油箱油位突然迅速降低的时候,燃油检测装置会发出报警信号。关键词:汽车;燃油量;检测;显示;PIC单片机AbstractAutomotive fuel quantity detection is the automotive electrical system is an important component. Th
3、rough an automobile manufacturer research shows that the current cars fuel gauge the majority still three meter scale , due to the use of the fuel sensor limit these oils have a relatively large scale disadvantage is low accuracy , the system instability. To address this situation , the authors anal
4、yze and study a variety of display devices and vehicle fuel detection method is proposed based on a PIC microcontroller-based fuel detection and display system.Thesis first of all vehicle fuel detection and display system is the necessity of the subject for discussion, on fuel at this stage to summa
5、rize the research of the detection system. For vehicle fuel detection works , the detection system is displayed for analysis. Then select the appropriate sensor , microcontroller, display devices and other necessary equipment , independent design a PIC microcontroller-based fuel detection and displa
6、y system. In software design, through such methods as median filter to exclude the error signal interference. Build the hardware platform , the writing system software, confirmatory testing, analysis of fuel consumption detection system used by the feasibility of the theory .Vehicle fuel detection s
7、ystem under the control of the microcontroller , an error signal is removed by the system software , driven by a stepping motor fuel gauge pointer will turn fuel tank fuel gauge accurately displayed on the upper.At the same time, alarm system design, less than setting value of gas or oil level when
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