Design of Vehicle Tunnel Illumination Measurement Device Based on STC12C5A60S2 Single-Chip Microcomputer

Abstract

In order to measure tunnel illumination with high efficiency and accuracy, a vehicle-mounted tunnel illumination measurement device is designed in this paper. The device comprises a measurement module, a control module, a display module, and a power module. The measurement module is composed of a BCE illuminance sensor and an inductive proximity switch, which can realize a single illuminance measurement within a fixed distance. The control module, i.e., the STC12C5A60S2 single-chip microcomputer, sends the single measurement data to the storage module to realize dynamic automatic measurement. The display module is an LCD1602 liquid crystal display, which displays the measured tunnel mileage and real-time illumination. The whole device is fed by the powered module. The man–machine exchange interface of the Visual Basic (VB) host computer and Access database are used to display and store the previous illuminance measurement data, respectively. Extensive experiments show that the device has the advantages of a simple structure, convenient installation, stable operation, and accurate and efficient measurement, and can realize an automatic measurement of illumination in a long tunnel.