基金项目:江西省质量技术监督局科技项目(编号:GZJKE201816)收稿日期:2022-05-18基于GPRS电梯限速器校验关键数据远程传输系统研究*周叶平,兰清生,汪有韬,胡诚,毛锦荣(江西省检验检测认证总院特种设备检验检测研究院,南昌330052)摘要:为降低电梯检验员人员现场检验时长,提高检验人员工作效率,设计了以GPRS为通信网络的限速器校验远程数据传输系统,用以替代检验人员现场确认观察限速器校验。系统以STM32F103RBT6微处理器为主控芯片,配合4G模块EC20、霍尔接近开关搭建系统硬件平台。通过STM32定时器及霍尔接近开关实现限速器转速脉冲信号采集,采用计时法对采集的脉冲信号进行脉冲周期计算,经转速与线速度关系换算实现电梯限速器线速度的测量,然后通过4G模块EC20、MQTT协议将限速器校验速度值传输至OneNET服务器,最后借助OneNETview可视化界面实现人机交互。通过PC端登录OneNET云端,可实现实时查看限速器校验速度值。系统经过反复测试运行,系统运行速度快,易操作,能够实现限速器校验结果速度值的远程传输、存储和显示功能。关键词:电梯;限速器;STM32;OneNET中图分类号:TN876.5文献标志码:A文章编号:1009-9492(2023)02-0212-04ResearchonRemoteTransmissionSystemofKeyDataGeneratedintheCalibrationProcessofElevatorSpeedLimiterBasedonGPRSZhouYeping,LanQingsheng,WangYoutao,HuCheng,MaoJinrong(SpecialEquipmentInspectionandTestingResearchInstitute,JiangxiGeneralInstituteofTestingandCertification,Nanchang330052,China)Abstract:Inordertoreducetheon-siteinspectiontimeofelevatorinspectorsandimprovetheworkefficiencyofinspectors,along-distancedatatransmissionsystemforspeedlimiterverificationwithGPRSasthecommunicationnetworkwasdesigned,itwasusedtoreplacetheinspectionpersonneltoconfirmandobservethespeedlimitercalibrationonsite.ThesystemusedSTM32F103RBT6microprocessorasthemaincontrolchip,cooperatedwith4GmoduleEC20andHallproximityswitchtobuildsystemhardw-areplatform.ThespeedlimiterspeedpulsesignalacquisitionwasrealizedthroughSTM32timerandHallproximityswitch,calculatedthepulseperiodofthecollectedpulsesignalbytimingmethod,thelinearspeedmeasurementoftheelevatorspeedlimiterwasrealizedbyconvertingtherelationshipbetweentherotationalspeedan...