This system can not only monitor the video signals from 16TV cameras at 10 different spots simultaneously, but also telecontrol the 16 cameras. The hardware in the system is simple, applicable and reliable, because in...This system can not only monitor the video signals from 16TV cameras at 10 different spots simultaneously, but also telecontrol the 16 cameras. The hardware in the system is simple, applicable and reliable, because intelligent components have been adopted and many functions can be achieved by software. Even if the code rates deviate from the designed value (300 baud/s) in 50 times, the remote signals can still be exactly received by the code rate measuring with software. The elash among remote signals from multiple spots is completely eliminated by checking their priorities with software.展开更多
In this paper, the configuration characteristic of the safe parameter measurement and alarm system in new type mine was first simply introduced, which is made up of topological structure and combines wire communicatio...In this paper, the configuration characteristic of the safe parameter measurement and alarm system in new type mine was first simply introduced, which is made up of topological structure and combines wire communication with radio communication, then introduced respectively the hardware and software construction and the working principle and the method of design, which is composed of detecting instrument as the core of enhanced single chip microcomputer AT89S8252 and relay station and CPU which consists of IPC. The three class computer communication system that integrates with measurement and alarm and management works reliably and uses conveniently, especially to thesystem of parameter detecting and alarm in mine, which is adapted to measure dispersedly and manage intensively.展开更多
针对某汽车电子企业现有EVP（EGR阀位置传感器，EGR valve position sensor）手工检测劳动强度大、操作过程繁琐、检测效率和精度低等问题，开发了以微型工业电脑为上位机、PLC为下位机的自动检测系统，利用微型工业电脑实现参数设置、...针对某汽车电子企业现有EVP（EGR阀位置传感器，EGR valve position sensor）手工检测劳动强度大、操作过程繁琐、检测效率和精度低等问题，开发了以微型工业电脑为上位机、PLC为下位机的自动检测系统，利用微型工业电脑实现参数设置、检测数据的存储、处理、统计分析和网络化，利用PLC实现检测设备的运动控制和数据采集，利用RS232串口实现上位机与下位机的通信。系统实际运行效果良好，满足了自动检测要求。展开更多
文摘This system can not only monitor the video signals from 16TV cameras at 10 different spots simultaneously, but also telecontrol the 16 cameras. The hardware in the system is simple, applicable and reliable, because intelligent components have been adopted and many functions can be achieved by software. Even if the code rates deviate from the designed value (300 baud/s) in 50 times, the remote signals can still be exactly received by the code rate measuring with software. The elash among remote signals from multiple spots is completely eliminated by checking their priorities with software.
文摘In this paper, the configuration characteristic of the safe parameter measurement and alarm system in new type mine was first simply introduced, which is made up of topological structure and combines wire communication with radio communication, then introduced respectively the hardware and software construction and the working principle and the method of design, which is composed of detecting instrument as the core of enhanced single chip microcomputer AT89S8252 and relay station and CPU which consists of IPC. The three class computer communication system that integrates with measurement and alarm and management works reliably and uses conveniently, especially to thesystem of parameter detecting and alarm in mine, which is adapted to measure dispersedly and manage intensively.
文摘针对某汽车电子企业现有EVP（EGR阀位置传感器，EGR valve position sensor）手工检测劳动强度大、操作过程繁琐、检测效率和精度低等问题，开发了以微型工业电脑为上位机、PLC为下位机的自动检测系统，利用微型工业电脑实现参数设置、检测数据的存储、处理、统计分析和网络化，利用PLC实现检测设备的运动控制和数据采集，利用RS232串口实现上位机与下位机的通信。系统实际运行效果良好，满足了自动检测要求。
