基于LabVIEW的称重系统设计

Design of weighing system based on LabVIEW

重量是物体的基本属性,称重系统的应用十分广泛,设计了一种基于LabVIEW的称重系统。该称重系统下位机主要由HL-8称重传感器、HX711高精度A/D模块、Arduino等组成;上位机基于LabVIEW开发平台,主要由数据库模块、语音识别播报模块、数据汇总模块、串口通信模块、商品管理模块、主面板程序模块等组成。将物品放置在称重传感器上,称重传感器将压力信号发送给HX711A/D模块,HX711A/D模块将重量数据发送到Arduino开发板中,经过存储和处理后,通过串口发送到上位机。系统具有重量数据采集、显示以及按照物品单价计算总价、找零、语音播报、数据存储等功能,采集精度高、稳定可靠、使用方便、实用性强。

Weight is the basic attribute of an object,and the weighing system is used widely.So a weighing system based on LabVIEW is designed.The lower computer of the weighing system is mainly composed of HL-8 weighing sensor,HX711 A/D module of high precision,Arduino,etc.The host computer based on LabVIEW development platform,and is mainly composed of database module,voice recognition broadcast module,data aggregation module,serial communication module,commodity man⁃agement module,main panel program module.The commodity is placed on the weighing sensor.The weighing sensor sends the pressure signal to the HX711A/D module.The HX711A/D module sends the weight data to the Arduino development board.It is sent to the host computer through the serial port,after storage and processing.The system has the functions of weighting data acquisition,display,calculating the total price according to the cargo price,give change,voice broadcast,data storage and so on.It has high precision of acquisition,stable and reliable,convenient operation and strong practicability.