Building management system based on image sensor

Physical parameters measures in activity of building management have slow variations. Some of parameters measures are temperature, pressure, movement of some building element. Taking in consideration this hypothesis the measurement system rate acquisition is low. The central unit can be a low speed programmable integrated circuit (IC) like a microcontroller. The low cost and low power consumption of image sensors and the possibility to be ease handled in measurements circuits, recommends the image sensors to be used in building managements. The linear image sensor is high speed device and is used for position detecting. To explore such application in this paper is designed and prototyped an experimental system measurement. The central unit of experimental measurement device is used a FPGA. Image sensor output is an analog voltage; this is easy interconnected with a high speed ADC. The operation frequency of acquisition frequency is established by light integration time. The expose time is computed in concordance with light intensity. The usual operation frequency of FPGA is 50MHz, implementing a soft clock divider the work frequency can be adjusted in same way to not saturate de sensor. The soft application for data acquisition and data analyze are developed in LabView FPGA and, LabView.