Wireless grain purchasing system

Abstract

The invention discloses a wireless grain purchasing system. The system comprises a measurement module, a processing module and a mobile phone terminal. When the system works, a resistance strain gauge converts grain weight into a voltage signal and sends the voltage signal to a measurement conversion circuit. The voltage signal is converted into a digital signal by the measurement conversion circuit. The digital signal is sent to a first microcontroller chip. Measurement end digital display is finished by the first microcontroller chip. Moreover, the digital signal is sent to the processing module through a first wireless transceiving chip. A second wireless transceiving chip receives measurement data sent by a sending end and sends the data to a second microcontroller chip. The second microcontroller chip finishes processing end digital display. The data is sent to a PC through a conversion chip. Data processing and purchasing bill printing are finished by the PC. The mobile phone terminal is a user mobile phone. The user mobile phone is connected with the PC through a network and is taken as a control terminal for the grain purchasing system operated by the PC. The system has the advantages of wireless data transmission, high intelligent degree and high expandability.

Description

technical field [0001] The invention relates to the technical fields of automatic detection, wireless communication and information technology application, and in particular to a wireless grain purchase system. Background technique [0002] Food is the most important thing for the people, and food security is very important to a country, and the purchase, transshipment, and storage of food are important links to ensure food security. The current level of grain procurement technology and management methods are still uneven. Some use pole scales, some use scales, and some use floor scales. Among these methods, the use of weighbridge purchases is a relatively advanced method, but everyone knows that the weighbridge occupies a relatively large area, and it is necessary to set up a grain entry area, an empty car return scale area, a grain unloading area, a grain inspection area, and staff. office area etc. The distribution of each area is very messy, which makes wiring very tro...

AI Technical Summary

Problems solved by technology

If the design is reasonable, the entire acquisition process can run in an orderly manner; if it is found that the design of some places is unreasonable, or the original system needs to be expanded and upgraded, wiring will be a very troublesome thing at this time

Images