提出了一种基于数字电桥的CI-SR800黑体全自动控制方法, 在不影响黑体原有使用方法前提下, 使黑体能够接入全自动测试流水线。根据CI-SR800黑体使用的4线电阻触摸屏和内部蜂鸣器, 设计了数字电桥电路和蜂鸣器检测电路。在考虑施工的可操作性、美观性等要求的同时, 有针对性的进行了一系列设计, 通过黑体控制器预留的IO接口, 采用并联的方式引出触摸屏的4芯导线和蜂鸣器的2芯导线。根据黑体人机接口的实际工作原理, 设计出与该黑体配套的控制电路。实际应用表明, 该设计方案便于安装、免维护、运行稳定。

A full automatic control method of CI-SR800 blackbody based on digital bridge is proposed to allow the blackbody to access the full-automatic test line without affecting the original using method. According to the 4 wire resistance touch screen and an internal buzzer used in CI-SR800 blackbody, the digital bridge circuit and the buzzer detection circuit are designed. A series of design are carried out, in consideration of the requirement of the construction operability and appearance at the same time. 4 wires of the touch screen and 2 wires of the buzzer through the IO interface reserved by the blackbody controller are led in parallel method. A control circuit for the blackbody is designed based on practical working principle of the blackbody man-machine interface. The practical applications show that the design is easy to install, maintenance free and stable in operation.