Grain Depot Temperature Monitor System Design Based On Scm

What we are designing is a monitor-and-control system for the gain depot. The task of the design is to monitor and control each storeroom, so that we can ensure that the gain stocked are in the safe condition.The monitor-and-control system uses 51 SCM as the core and forms temperature control system. A 51 SCM is responsible for monitoring and controlling the temperature of a gain depot. There are two ways—lineate communication and wireless communication to transfer the message between the extension and main-control engine. The lineate communication adopts the way of 485 bus GSM and wireless broadcasting station are two ways for wireless communication, and the wireless communication can check and coding the sending message to advance the dependability of data sending. The lineate communication have the virtue of reliable and fast, but with the shortcoming of high cost. Wireless communication can avoid the defect of waste of distance laying line and high cost. The work-control engine read the managed data through 232 serial implement directly and show by mass graph.We have finished the design of software and hardware of the whole system, and bring forward a kind of temperature control system which can be used for pint-sized and medium-sized gain depot.