【作者】 刘丹；

【导师】 方康玲；

【作者基本信息】 武汉科技大学 ， 控制工程， 2011， 硕士

【摘要】 进入90年代以后,自动化技术正面临着第三次飞跃,现场总线技术的兴起和逐渐成熟成为本世纪自动化领域中的主导技术。现场总线控制系统FCS是在计算机网络技术飞速发展的推动下形成的。面向智能建筑的现场总线技术一经问世,就受到积极响应,人们开始采用FCS或FCS+DCS技术完成常规控制技术无法达到的功能和性能指标,实现建筑物智能化。触摸面板作为智能建筑控制系统中的触摸输入部分也是需要用总线来实现信息传递的,通常,我们所接触到的面板都是采用弹片开关、机械按钮开关、橡胶键盘和薄膜开关来实现的。具体的实现方式是由控制面板所在设备对质量、价格和可靠性的要求所决定的,但是上面的这几种实现方式都受环境的影响、容易导致误差,容易磨损、使用时间有限且外观在美学上的选择也比较有限。随着消费者生活质量的提高,产品外观越来越成为决定其市场是否成功的重要因素,这就要求工程师在不牺牲技术性能的条件下,采用比较合适的控制面板技术。考虑到美观、整洁和成本效益等方面的因素,在包括消费类电子产品、家用电器等在内的许多电子产品中,触摸传感受到了广大用户青睐,市场上的消费电子产品已经开始逐步采用触摸感应按键来取代传统的机械式按键。本文分析了现场总线技术在智能建筑中的运用,同时对电容式触摸的基本原理进行了分析,并比较了现有的几种电容检测方法。以Freescale公司的8位单片机MC9S08AW32作为控制系统的主芯片,以电容式触摸感应芯片IQS221作为触摸信号输入系统的辅助芯片,设计出了一种基于EIB总线的触摸感应面板。通过A-NET协议,可以直接连接到EIB控制系统从而达到控制继电器或者调光的目的;也可以通过开放的485协议,使得触摸感应按键能连接到中控的主控机直接控制继电器。更多还原

【Abstract】 Enters after for the 90’s, the automated technology is facing the third leap, field bus technology starting with maturely is becoming in this century automation domain gradually the leading technology. Field bus control system FCS is forms in under the computer network technology rapid development impetus. Touching key through being published as soon as face the intelligent construction field bus technology, receives the positive response, the people start to use FCS or the FCS+DCS technology complete the function and the performance index which the conventional control technology is unable to achieve, realizes the building intellectualization.Touches the kneading board to take in the intelligent construction control system the touching input part also is needs to use the main line to realize the information transmission, usually, we contact the kneading board all is uses the shrapnel switch, the mechanical push-button switch, the rubber keyboard and the thin film switch realizes. The concrete realization way is by the control panel in the equipment, but the above these realization way which to the quality, the price and the reliable request decided all receives the environment the influence, easily to cause the error, easy to wear, the period of revolution limited also the outward appearance quite is also limited in esthetics choice. Along with the consumer quality of life enhancement, the product outward appearance more and more becomes decided whether its market does succeed the important attribute, this requests engineer in not to sacrifice the technical performance under the condition, uses the quite appropriate control panel technology.Considering the appearance,clean and cost-effectiveness and other factors, including consumer electronics, home appliances, etc., many electronic products, the touch sensing applications are becoming more popular, the market of consumer electronics products have been gradually with touch-sensitive keys, to replace the traditional mechanical buttons. This paper analyzes the basic principles of capacitive touch, including before and after exposure to changes in capacitance and the capacitance change detection, and several existing advantages and disadvantages of capacitive sensing method is easy to realize the extent described in detail; to Freescale’s 8-bit microcontroller MC9S08AW32 control system as the main chip to chip capacitive touch sensing touch input system IQS221 as the auxiliary chip, designed a bus-based touch-sensitive buttons. By A-NET protocol, can be directly connected to the EIB control system to achieve the control relay or dimming purpose; You can also open the 485 agreement can be made touch-sensitive buttons control the main computer connected to the direct control of relays.更多还原