CN1604088A - Fault collection and detection apparatus and method - Google Patents

Fault collection and detection apparatus and method Download PDF

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Publication number
CN1604088A
CN1604088A CNA2004100842364A CN200410084236A CN1604088A CN 1604088 A CN1604088 A CN 1604088A CN A2004100842364 A CNA2004100842364 A CN A2004100842364A CN 200410084236 A CN200410084236 A CN 200410084236A CN 1604088 A CN1604088 A CN 1604088A
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data
system
serial
pc
lower
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CN100337237C (en
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吴朝晖
陈尚俭
李培玉
王磊
杨国青
郑能干
吴伟清
吕攀
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浙江大学
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/10Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply
    • Y02D10/14Interconnection, or transfer of information or other signals between, memories, peripherals or central processing units
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/10Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply
    • Y02D10/15Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply acting upon peripherals
    • Y02D10/151Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply acting upon peripherals the peripheral being a bus

Abstract

This invention relates to a fault collection detecting apparatus and its method and the system comprises upper computer and down computer. The down computer adopts data collection board and is used to data collection of multiple-path spot and buffer and pre-process, while the upper computer adopts PDA and receives the sent data by the down computer through the serial port. The down computer realizes the whole spot monitor tasks, such as analog signal collection, AD conversion and simple data process part and controls the hardware scale and power consumption of the system. The upper computer realizes the further data process, spot real time analysis display element, history data re-display.

Description

一种故障采集检测装置及方法 A detection device and method for collecting fault

技术领域 FIELD

本发明涉及数据采集检测领域,主要是一种对大中型旋转机电设备的运行状态进行监测和故障预判断的故障采集检测装置及方法。 The present invention relates to the field of data acquisition detection, is primarily a medium-sized operating state of the rotating electromechanical equipment for fault detection apparatus and method for collecting and monitoring the failure pre-judging.

背景技术 Background technique

随着现代工业的发展,大中型旋转机电设备(如水泵、鼓风机、汽轮机等)在工业现场应用日益广泛。 With the development of modern industry, medium and large rotating electrical equipment (such as pumps, blowers, turbines, etc.) used in industrial field increasingly widespread. 由于这些设备往往是企业生产的核心设备,一旦出现故障,轻则设备本身受到破坏,重则整个企业的生产受到影响,甚至会出现人身伤亡,因而对其运行状态的监测和故障预判断也愈来愈受到重视。 Because these devices are often the core production equipment, the event of a failure, ranging from the device itself is damaged, the entire weight of the production is affected, there may even be personal injury or death, thus monitoring and failure pre-judging its operational status is also more to more attention.

上世纪九十年代国内外流行的手持式数据采集器因体积小、携带方便等优点而广泛应用于工业现场,但由于其核心芯片大都为8位的单片机,处理能力有限,只能采集单路振动信号的瞬间幅值、峰峰值等离散快变量以及温度、流量等缓变量而不能实现多路实时快变数据的高采样率采集和同步动态时频域显示及历史数据的对比分析,因而不能适应关键设备系统监测和故障预判断的需要。 At home and abroad on the popular nineties handheld data collector due to the small size, easy to carry and are widely used in industrial field, but mostly because of its core chip 8-bit microcontroller, limited processing power, can only collection Single comparison of the frequency domain display of historical data and the instant when the amplitude of the vibration signal, peak temperature and other variables and discrete fast, slow variable flow rate can not be achieved quickly becomes real-time multi-channel data acquisition and high sampling rate synchronous dynamic, and therefore can not meet the needs of key equipment and system failure pre-judging the monitoring. 用工控机加数据采集卡的体系替代手持式数据采集仪虽然可以满足重要工业场合对设备运行数据采样、处理的速度和性能方面的要求,但由于工控机体积相对较大,在工业现场很难用一台故障诊断仪对多台相关设备进行综合监测;另外,由于工控机相对价格较高,如果每台设备配一台故障诊断仪将会大大提高生产成本。 Alternatively meet the important industrial applications while sampling the equipment operating data, speed and performance requirements of handheld data acquisition instrument system IPC treated with additional data acquisition card, but the IPC relatively bulky, difficult in the industrial field comprehensive monitoring of multiple devices associated with a fault diagnostic; In addition, due to the higher relative price of IPC, if each device with a fault diagnostic will greatly increase the cost of production.

发明内容 SUMMARY

本发明要解决上述现有技术的缺陷,提供一种对大中型旋转机电设备的运行状态进行监测和故障预判断的故障采集检测装置及方法。 The present invention is to solve the drawbacks of the prior art, to provide a medium-sized operating state of the rotating electromechanical equipment for fault detection apparatus and method for collecting and monitoring the failure pre-judging.

本发明解决其技术问题采用的技术方案。 The present invention solves the technical solution of the technical problems. 这种故障采集检测装置,主要包括上位机和下位机,所述的下位机是基于16位MCU的数据采集板,与标准电压式位移和加速度电压传感器相连接,用于承担多路现场快变及缓变数据的采集及预处理,并通过串口传给上位机;所述的上位机是PDA,用于承担实时数据的二次处理运算、快变及缓变数据的实时动态分析显示及精简的专家系统故障监测,并通过串口接收下位机上传的数据;下位机的COM PDA串口通过下位机的串口切换开关置与上位机的串口相连接,下位机的COM PC串口通过下位机的串口切换开关置与PC的串口相连接。 This fault capture detection means includes upper and lower machine, the machine is based on the lower 16-bit data acquisition board MCU, are connected to a standard voltage displacement sensor and the acceleration voltage, assume for multiple site fast variations and grading data acquisition and pre-processing, and to the host computer through the serial port; said host computer a PDA, a second real-time data processing operations undertaken, real-time dynamic analysis and fast changing data and graded streamline expert system fault detection, and data through the serial port to receive the next crew uploaded; COM PDA serial lower machine is connected to the serial PC through the serial port switch is set next crew, the next crew COM PC serial port lower machine serial switch a switch connected to the home PC's serial port. 下位机包括信号整型和调理、放大电路、高频滤波电路、16位高集成度节能型MCU以及其调试接口电路、外扩快速SRAM电路、串口驱动电路、端口切换电路、外围器件供电电路、核心器件供电电路、AD外部电压基准电路等。 Lower machine comprises a signal conditioning and integer, an amplifier circuit, a high-frequency filter circuit, a highly integrated 16-bit MCU as well as energy-saving circuit debug interface, extended fast SRAM circuit, a serial driver circuit, a port switching circuit, the peripheral device power supply circuit, core device power supply circuit, AD external voltage reference circuit. 下位机输入电源接口连接到上位机(PDA)的电池输出接口。 Lower input power interface to the host computer (PDA) battery output interfaces. 上位机通过触摸屏与操作员进行人机交互,完成数据采集的启停控制、系统的参数配置、显示通道的切换及显示参数设置和专家系统的控制。 The host computer via the touch screen interactive with an operator, configuring the parameters of the start and stop of data acquisition control system, and a display control handover parameter settings and channel display expert system.

本发明主要侧重于故障诊断仪器的便携性以及低功耗性的设计,同时又考虑到仪器在数据采集、故障监测分析以及人机交互方面的性能的要求,是拥有多台中大型旋转机械设备的工业现场进行故障监测的高性价比方案。 The present invention is mainly focused on the malfunction diagnosis apparatus of portability and low-power design, while taking into account the instrument data collection, analysis and fault monitoring required performance aspects of human-computer interaction, which is a multi-station large rotating machinery industrial site fault monitoring cost-effective solution. 系统分上下位机,下位机是基于16位MCU(微程序控制器)的数据采集板,承担多路现场快变及缓变数据的采集及预处理,并通过串口传给上位机;上位机是市面上主流的hp公司的PDA(Personal Digital Assistant个人数字助理),通过串口接收下位机上传的数据,并承担实时数据的二次处理运算、快变及缓变数据的实时动态分析显示及精简的专家系统故障监测等工作。 System is divided into upper and lower computer, the machine is based on 16-bit MCU (micro-controller program) data acquisition board, assume multiple field grading and fast changing data acquisition and pre-processing, and to the host computer through the serial port; PC hp is the mainstream market, the company's PDA (personal digital Assistant personal digital assistants), through the serial port to receive data uploaded under-bit machine, secondary processing operations and assume real-time data, real-time dynamic and fast changing slowly varying data analysis and streamlining the expert system fault monitoring work. PDA有SD卡扩展能力,可以存储现场采集的实时数据,并可以通过串口或者蓝牙下载到PC上进行进一步的故障趋势分析。 PDA has SD card expansion capabilities, you can store real-time data collected in the field, and can be downloaded to be further fault trend analysis on a PC via the serial port or Bluetooth. 本发明对整个现场监测的任务进行合理的分解:将模拟信号的采集、AD转换以及简单的数据处理部分放在下位机实现,以控制系统的硬件规模及耗电;将数据的进一步处理、现场需要实时分析的显示构件、历史数据重现及精简的专家系统放在上位机上实现,以充分利用PDA的处理能力和交互能力;将复杂的历史数据对比分析、设备性能趋势预测以及完整的专家系统放在分析中心的PC上实现。 The present invention is exploded reasonable task of monitoring the entire field: the acquisition of analog signals, the AD conversion and simple data processing section on the lower machine implemented to control the hardware scale and power consumption of the system; a further data processing, site display components need real-time analysis of historical data to reproduce and streamline the expert system on the PC implementation to take full advantage of the processing power and the ability to interact with the PDA; the comparative analysis, trend forecasting equipment performance and complete complex historical data expert system PC analysis centers on implementation.

本发明所述的故障采集检测方法,本系统由上下位机构成,通过上位机PDA的5V锂电池给整个系统供电。 Collecting fault detection method of the present invention, the system consists of the upper and lower bodies, the PDA through the PC lithium 5V power to the entire system. 现场检测时,系统的传感器接口连到安装在目标设备上的多路振动传感器(传感器路数可以根据现场需要自由选择1路~4路)。 The scene detection, the sensor interface system connected to the multiplexer vibration sensor mounted on the target device (Sensor approach may be free to choose a path ~ 4 according to the site). 传感器的输入电压信号经过系统下位机的信号整型、调理电路以及放大、滤波电路得到AD的输入电压,输出至430的片内集成AD端口。 Input voltage signal from the sensor is the system integer signal, the machine position and conditioning circuit amplifies, filters, AD input circuit to obtain a voltage output to the AD port within the integrated chip 430. 430的12位高精度AD将输入的模拟信号转换成数字信号并做相应的预处理后按照旋转机械设备故障诊断数据传输协议打包成一定格式的数据包存入片外32K的SRAM中。 After 12 accurately converting an analog signal input of the AD 430 into a digital signal and make appropriate pre-packaged into a certain format in accordance with the rotating machinery fault diagnostic data transfer protocol packets stored off-chip SRAM of 32K. 在处于运行状态的上位机向下位机的串口发送一个请求包,下位机收到后从片外的存储器中提取相应的数据包发给片外的RS2323串口驱动芯片并通过COM_PDA串口发给上位机。 In the serial transmission PC running a machine downwardly bit request packet, upon receipt of the next crew extracts the corresponding data packet from the memory of the outer sheet sent RS2323 serial driver chip pieces and sent to the host computer via the serial port COM_PDA . 上位机接收到数据包后按照旋转机械设备故障诊断数据传输协议进行校验、打时间戳和拆包并将各个子包分别存放到几个系统共享内存缓冲区中。 After the host computer receives a data packet according to verify rotating machinery fault diagnostic data transfer protocol, and unpacking timestamps and respective sub-packets are stored in the shared memory buffer in several systems. 上位机的上层应用程序读取缓冲区的数据后根据协议进行解包,并提供给显示构件和专家系统构件。 After the upper layer application host computer to read data buffer according to the protocol unpacked and provided to the display member and the expert system components. 上位机的系统配置模块通过显示构件的系统配置界面得到用户输入的系统配置信息,按照旋转机械设备故障诊断配置协议打成系统配置包,在系统初启的时候按照旋转机械设备故障诊断配置信息传输协议下传给下位机,以实现对下位机的系统配置,如通道数、采样点数、采样平率等的参数设定。 PC system configuration module obtained system configuration information input by the user through system configuration interface display member labeled in accordance with the system configuration package rotating machinery fault diagnostic configuration protocol, according to the transmission rotating machinery fault diagnosis system configuration information when the initial activation of the passed to the next lower protocol bit machine, configure the system in order to achieve lower machine parameters such as the number of channels, sampling points, the sampling rate is set flat. 需要将手持系统的数据备份到数据备份服务器或上传到装有专家系统的PC上时,需将下位机的串口切换开关置到PC端,这样下位机的COM_PC串口就连接到PC的串口,然后用户进入上位机的数据上传界面来控制数据的传输。 When necessary backup data handheld system to a data backup server or upload on which the expert system of the PC, the serial switch is set lower machine need to be to the PC, so COM_PC serial lower machine even to the PC's serial port, and user interface to upload data into the host computer to control the transmission of data.

本发明与背景技术相比,具有有益的效果是:1.解决了便携式手持故障检测仪计算能力有限,无法处理高数据采样频率采样目标设备运行时的振动信号的问题。 Compared to the background art of the present invention, has a beneficial effect is: 1. solve the finite fault detector portable handheld computing capability, can not handle the high data sampling frequency vibration in the signal when a target device is running. 本发明可以最多4四路同时以50kHz的采样频率采集振动信号,并通过处理能力较强的PDA(主频400MHZ)来进行信号的显示和故障的分析。 The present invention may be simultaneously acquired at a sampling frequency of 50kHz up to 4 four vibration signals, and by a stronger processing capability of a PDA (400MHZ frequency) to analyze and display the fault signal.

2.采用前端数据采集和后端数据分析处理分离的体系,使得需要大量实时中断、AD转换的数据采集工作不会影响到后端的数据处理和显示;而需要大量占用CPU时间的界面操作和专家系统也不会影响到前端的数据采集。 2. A front-end analysis data acquisition and processing system separate backend data, so that requires a lot of real-time interrupt, the AD conversion data collection will not affect the data processing and display of a rear end; interface operation and require a great deal of CPU time and expert the system will not affect the front end of the data collection.

3.下位机使用两套隔离的电源系统,5V提供给采用模拟电路部分、3.3V提供给数字电路部分。 3. The use of two lower machine power system isolation, 5V is supplied to the analog circuit section, 3.3V is supplied to the digital circuit portion. 这种设计一方面使得模数电路的隔离,防止互相干扰,另一方面由于核心部分电压较低,降低了整个系统的整体功耗。 This design on the one hand the isolation circuit module, to prevent mutual interference, on the other hand because of the lower core part of the voltage, reducing the overall power consumption of the entire system.

4.由于不管是使用光耦还是隔离放大器隔离,都会有较高的耗电量,而且电路复杂度会增加,本发明使用一片LM324N运放作为跟随器,虽然隔离效果没有前两者好,但在现场强电以外的串入时起到一定的保护作用,在能耗与功能之间做了较好的平衡。 4. Since whether or isolation amplifier using the photo coupler isolation, will have a higher power consumption and circuit complexity increases, the present invention is used as a follower LM324N operational amplifier, although the former is not a good isolation therebetween, but string strong electric field outside the fashionable play a protective role in function between energy consumption and do a better balance.

5.采用PDA的锂电池供电,使得系统的体积和下位机供电电路的复杂度大大减小。 5. A lithium battery using a PDA, such that the volume and complexity of the power supply circuit of the lower machine system is greatly reduced. 当系统电池耗尽时,可用PDA自带的充电器充电。 When the system battery is exhausted, the available PDA own charger.

6.由于系统采用PDA的锂电池供电,所以电压可能会在一个范围内浮动,所以430的AD转换基准电压采用外部基准电压芯片提供,以保证AD的转换精度。 6. Because the PDA system powered by lithium batteries, the voltage may float within a range, the AD converter of the reference voltage 430 to provide an external reference voltage of the chip, to ensure the precision of AD conversion.

7.上位机软件采用模块化设计,系统功能扩展方便。 7. The PC software is modular in design, easy to expand system functions.

因此它是具有多台中大型旋转机械设备(如水泵、鼓风机、汽轮机等)工业现场的低成本高效率的故障采集检测分析解决方案。 It is a multi-station large rotating machinery (e.g., pumps, blowers, turbines, etc.) detected fault collection cost effective solution for industrial site analysis. 比如,一个车间的6台水泵可以作为一组,每台水泵只用配备若干传感器,操作人员使用一台本发明定期对该组内的6台机器进行轮检。 For example, a plant 6 can be used as a set of pumps, each pump is equipped with several sensors only, with six machine operator in a periodic component of the present invention is the subject wheel. 通过PDA的液晶屏幕操作人员可以了解设备当时的运行状态,并可以通过振动频谱图或精简专家系统进行简单的故障的判断。 You can understand the operation state at the time of the LCD device through the PDA operator, and can be simply judged by the failure or reduced vibration spectrum expert system. 操作人员可以定期将本发明采集的现场数据上传到PC上做备份,PC上的故障分析软件(是本系统上位机软件的加强版)将对每台设备的历史运行情况做趋势预测,也可比较两台同类型的设备的相关数据,以最大限度的预测可能发生的故障。 Field data operator can regularly uploaded to the present invention is collected to make a backup on your PC, fault analysis software on the PC (PC software of this system is an enhanced version of) the history of the operation of each device will do predict trends, but also comparison of the two types of devices associated with data in order to maximize the predicted failure may occur.

附图说明 BRIEF DESCRIPTION

图1:本发明现场与目标设备的硬件连接示意图;图2:下位机总体硬件框图;图3:下位机电路MCU部分;图4:下位机电路电源部分;图5:下位机电路模拟部分;图6:下位机电路外扩SRAM和串口部分;图7:下位机程序框图;图8:上位机软件整体架构图9:上位机数据采集管理模块架构图10:历史数据分析构件程序流程图具体实施方式下面结合附图和实施例对本发明作进一步介绍:图1给出了本发明在现场的连接示意图。 Figure 1: Hardware field and the target device according to the present invention, connection diagram; FIG. 2: lower machine overall hardware block diagram; Figure 3: road machinery MCU part; Figure 4: road machinery power section; FIG. 5: the lower electromechanical analog portion; Figure 6: lower outer road machinery enlarged SRAM and serial portions; FIG. 7: positioner block diagram case; FIG. 8: PC overall software architecture of FIG. 9: PC data acquisition management module architecture FIG. 10: historical data analysis component program flowchart specifically embodiment dRAWINGS Examples and embodiments of the present invention is further described: Figure 1 shows a schematic diagram of the present invention is connected in the field. 现场振动传感器可以固定在目标设备的多个方位,如主轴或从轴的X径向、Y径向、轴向等,以检测其轴心轨迹的变化、轴向窜动的幅度、机座的振动幅度等设备运行数据。 Site vibration sensor may be fixed in a plurality of orientations of the target device, such as a spindle or radially from the axis X, Y radial, axial, etc., to detect a change in their orbits, the amplitude of axial movement, stand amplitude of vibration equipment operating data. 下位机的硬件电路包括MCU部分、电源部分、模拟部分、外扩SRAM和串口部分。 Lower machine portion includes an MCU hardware circuit, the power supply portion, the analog portion, and the external expansion port SRAM portion.

图2是下位机的硬件总体框架图。 FIG. FIG. 2 is a hardware lower overall framework machine. 连接在工业现场目标设备上的多路传感器模拟信号经过信号调理电路得到需要采集的频谱范围信号,再经过集成运放,将信号放大到MCU内部AD的输入电压范围。 A target connected to the industrial field devices via analog multi-channel sensor signal conditioning circuit to obtain a signal spectral range to be collected, and then through the integrated operational amplifier, the amplified signal to the input voltage range of the AD internal MCU. MCU的集成AD将所采集的模拟信号转化成数字信号后作适当的前期数据处理并打成符合旋转机械设备故障诊断数据传输协议的数据包,通过串口芯片RS2323发送给上位机。 AD MCU integrated analog signals collected into a digital signal made after appropriate pre-processing the data packet matches and labeled rotating machinery fault diagnostic data transfer protocol, transmits to the host computer through the serial port chip RS2323. 系统的电源由单独的电源芯片提供,该芯片同时也提供传感器的电源。 The power supply system is provided by a separate power supply chip that also provides power to the sensor. 另外,考虑到系统由电池供电,因而采用专门的基准电压芯片给MCU集成的AD提供基准电压,以保证系统AD采样精度。 Further, taking into account the system powered by a battery, thereby using a special reference voltage to the MCU chip integrated reference voltage AD, AD sampling system to ensure accuracy.

如图3所示,本系统采用TI公司的16位MSP430F149芯片。 As shown in FIG. 3, the present system uses TI MSP430F149 16-bit chips. 该芯片具有超低功耗(160uA@1MHz,2.2V)、5种节能模式、12位RISC指令结构12位200kbps片内AD、两通道串行接口、硬件乘法器等性能,十分符合本发明要求的低功耗、高集成度、强处理能力的要求。 The ultra-low power chip (160uA @ 1MHz, 2.2V), 5 Power-Saving modes, 12-bit RISC instruction sheet 200kbps structure 12 within the AD, two channel serial interface, hardware multiplier and other properties, the present invention is to meet the requirements low power, highly integrated, the required processing capability. 芯片的时钟源有多种模式,外部的32.768kHz低速晶振在系统省电模式启用,8MHz在系统全速运行的时候启动。 Chip clock source for a variety of modes, a low-speed external 32.768kHz crystal enabled in the system power-saving mode, when the start 8MHz system running at full speed. 手动复位电路提供足够的低电平时间以确保系统。 Manual reset circuit provides low time sufficient to ensure the system. MSP430F149有专用的在线调试端口JTAG,可以通过仿真器与PC的并口相连,在下位机程序测试通过并下载到板子上后可以将该接口拆除。 MSP430F149 dedicated online debug port JTAG, can be connected to a PC via the parallel port emulator, the next crew procedures by testing and can be downloaded to the board after the removal of the interface.

图4是下位机的电源模块,主要由三部分组成:模拟电路电源、数字电路电源和AD基准电压电源。 FIG 4 is a lower machine power module, mainly consists of three parts: power analog circuits, digital circuits and power supply voltage reference AD. 模拟电路电源采用MAX751芯片,该芯片可以将1.2V~5.25V的输入电压稳压成5V电压输出,非常适合电池供电的系统使用。 Analog circuit power supply using the MAX751 chip, the chip may be an input voltage to a regulated 1.2V ~ 5.25V to 5V voltage output, very suitable for battery powered system. 数字电路电源采用AAT3221-3.3芯片将5V电压变为3.3V提供给MSP430F149、HY62WT08081E和MAX2323。 Using a digital circuit power supply voltage of 5V AAT3221-3.3 chip becomes 3.3V is supplied to MSP430F149, HY62WT08081E and MAX2323. MSP430F149片内AD的2.5V基准电压由TVL431芯片提供。 2.5V reference voltage in AD is provided by chip MSP430F149 TVL431 chip.

如图5所示,四路传感器的输出端接到JS1的1、2、3、4端,JS1的5、6、7、8端向传感器提供5V电压。 5, the output of the sensor to the four terminal JS1 from 1,2,3,4, 5,6,7,8 terminal JS1 to the sensor provides a voltage of 5V. 四路0~5V的信号经R10~R17分压后进入运放LM324N,LM324N的输出端分别连接C7~C10,对四路信号进行滤波。 After four signals of 0 ~ 5V via R10 ~ R17 dividing into the LM324N operational amplifier, the output terminal are connected LM324N C7 ~ C10, of four signal is filtered. 最后输出AD1~AD4四路信号连接到MSP430F149的A4~A7管脚。 AD1 ~ AD4 final output signal is connected to four pins of MSP430F149 A4 ~ A7.

如图6所示,MSP430F149的URXD1和UTXD1管脚连接到串口驱动芯片MAX2323的T1IN和R10UT管脚,从MAX2323的输出管脚T10UT和R1IN连接到开关SW1中。 As shown in FIG 6, MSP430F149 URXD1 and the pin is connected to the serial port driver UTXD1 MAX2323 chip and the T1IN R10UT pins, connected to the switch SW1 from the output pin T10UT MAX2323 and R1IN. 系统在数据采集状态的时候SW1连接MAX2323和JP1端口,使得下位机可以和PDA进行通讯。 Data collection system when the state port JP1 and MAX2323 SW1 is connected so that the crew can communicate with PDA. 当系统在数据上传状态的时候SW1连接JP1端口和J1端口,使得PDA直接和PC的串口通讯。 When the system is in a state when the data upload port JP1 and J1 SW1 is connected ports, so that the PC and the PDA direct serial communication. 由于振动信号的数据量比较大,4个通道同时以最高采样平率采集将产生4K左右的的数据量,而MSP430F149片内只有2K的RAM,加上数据接收和发送缓冲区需要存同时容纳多个包,所以必须外扩SRAM。 Since the data is larger than the vibration signal, four channels at the highest rate level acquisition sampling the generated data amount of about 4K, 2K in the RAM is only MSP430F149 chip, plus data receiving buffer memory need to accommodate multiple a package, it must be extended SRAM. HY62WT08081E是高速低功耗32K的CMOS(互补金属氧化物半导体)静态随机存储器,可以和MSP430F149的访问速度兼容。 HY62WT08081E 32K is a high-speed low-power CMOS (complementary metal oxide semiconductor) static random access memory, and the access speed can MSP430F149 compatible. HY62WT08081E的地址总线由MSP430F149的P2口和P5口驱动,数据总线连接MSP430F149的P4口。 HY62WT08081E address bus is driven by MSP430F149 port P2 and port P5, P4 of MSP430F149 data bus connection port.

下位机的程序主要由串口和定时器中断处理函数和一个主函数,以及一些IO操作函数构成。 Scheduler lower main handler and the serial port and a main function of the timer interrupt, as well as some functions configured IO operations. 图7给出了主函数的流程,程序再在做了一些初始化工作之后,开启中断,然后根据串口中断函数接收的指令选择程序流程:1.如果收到系统配置指令,则系统从上位机接收系统参数配置包(该配置包遵守旋转机械设备故障诊断配置信息传输协议,其格式如表1所示),并根据收到的配置信息配置系统参数,包括缓存区的大小设置、定时器采样的间隔、AD采样的参数等。 Figure 7 shows a flow after the main function, the program re-doing some initialization, enable interrupts, then instructs the function selection according to the received serial interrupt program flow: 1. If the received configuration instruction system, the system receives from a host computer system parameter configuration package (the package configuration compliance rotating machinery fault diagnosis device configuration information transfer protocol format as shown in table 1), and configure system parameters according to the configuration information received, including the size of the buffer area is provided, the sampled timer interval, AD sampling parameters and the like. 当下位机完成系统配置后,便向上位机发送确认包。 When the next bit machine system configuration is completed, the host computer sends an acknowledgment packet Pianxiang.

2.如果收到暂停采集指令,则系统关闭CPU时钟及电源,使系统进入休眠状态,降低系统功率。 2. If you receive pause acquiring instruction, the CPU clock and power off the system, the system into sleep mode to reduce system power. 同时430仍然提供片内设备IO的时钟及电源,一旦串口收到数据便立刻唤醒CPU。 While still providing 430-chip IO device clock and power supply, serial data received once they immediately wake up CPU.

3.如果收到上传数据指令,则系统进入数据打包发送部分。 3. If the received upload data command, the system enters a data package transmission section. 首先关闭定时器中断停止采样,然后检查哪个缓存区数据已经准备好,将准备好的数据取出,根据旋转机械设备故障诊断数据传输协议打成上行数据包(其格式如表2、表3所示),并调用串口发送函数将数据包上传。 Close first timer interrupt to stop sampling, and checking which buffer data is ready, the prepared data extracted, labeled uplink data packet (according to the format as shown in Table 2 rotating machinery fault diagnostic data transfer protocol, as shown in Table 3 ), and calls the function serial port to send the packet to upload.

图8为上位机的体系架构。 Figure 8 is a host computer architecture. 上位机(hp5500 PDA)是惠普公司生产的高端个人数字助理,该PDA的CPU是intel公司的高性能嵌入式处理芯片Xscale255,并集成了32M的SDRAM、16M的FLASH、从端USB接口、蓝牙和异步串口通讯模块、7寸TFT液晶以及触摸屏等,并可扩展SD卡,基本可以满足本系统上位机的性能需求。 PC (hp5500 PDA) is Hewlett-Packard Company production of high-end personal digital assistant, PDA which CPU is intel's high-performance embedded processing chip Xscale255, and the integrated SDRAM 32M, 16M of FLASH, from the end of the USB port, and Bluetooth asynchronous serial communication module, and 7-inch TFT LCD touch screen, the SD card can be extended to meet the basic performance requirements of the system host computer. 上位机的操作系统是嵌入式ARM-linux,驱动程序和数据采集管理构件分别是用C和C++编写,用户图形交互构件、专家系统构件、历史数据分析构件是用Trolltech公司的QT库开发而成。 PC operating system is embedded ARM-linux, driver management and data acquisition components are written in C and C ++, graphical user interaction component, the expert system components, historical data analysis component is made with the development of Trolltech's QT library .

其中数据采集管理构件负责上位机底层数据调度管理,其内部子模块功能框图如图9所示,其主要功能如下:1、数据接收。 Wherein the data collection and management component is responsible for the underlying data schedule management PC, the internal functional block diagram of sub-modules shown in FIG. 9, and its main functions are as follows: 1, the data reception.

数据采集子模块采用轮询方式调用串口驱动提供的read函数来得到来自下位机的实时数据。 Data acquisition sub-module calls the polling of the serial port driver read function to provide real-time data obtained from the lower machine. 轮询的频率一定,高于下位机的最高传输速率。 Polling frequency constant, the maximum transmission rate is higher than the lower machine.

2、数据管理。 2, data management.

数据采集子模块将收到的数据包拆包成三个子包,分别是:快变数据子包、静态数据子包、缓变数据&开关量数据子包。 Data acquisition submodule unpacking the received packet data into three sub-packets, are: fast sub-packet variable data, static data sub-packet, graded data & amp; data sub-packets switch. 然后分类存放在正对不同应用的四个的缓存中——面向正常数据保存静态数据缓存、面向显示的快变数据缓存、面向正常数据保存的快变数据缓存和面向故障数据保存的快变数据缓存。 Then the classification is stored in the cache is on the four different applications - data stored for normal data cache static display oriented fast changing data cache, the data stored for normal speed and variable data cache for data stored fault data becomes faster cache.

3、向上层应用提供数据解包访问接口。 3, to provide data to the upper application access interface unpacked.

由缓冲区操作子模块实现,主要是面向显示模块、嵌入式专家系统专家系统。 Buffer operation implemented by the sub-modules, mainly for display modules, embedded expert system expert systems.

4、数据存盘。 4, data archiving.

数据存盘子模块将缓存中非实时的数据进行存盘操作。 Data archiving module will cache the Central African sub-real-time data archiving operations. 四个缓存区有不同的存盘频率,其中面向故障数据保存的快变数据缓存只有在故障时才存盘。 There are four different buffer save frequency, wherein the data stored for the failure quickly varying only save the data cache when a fault. 存盘的具体操作由另一个fork出来的子进程进行,以免数据采集进程等待磁盘I/O操作而降低接收数据的实时性。 Save the specific operation of the fork out by another child processes, the process of data acquisition in order to avoid waiting for disk I / O operations to reduce the real-time received data. 父子进程间需要通过信号量来同步,以保证存盘子进程读到正确的数据。 Between parent and child need to be synchronized by semaphore to ensure save the child read the correct data.

5、为用户应用进程提供系统配置接口。 5, the system provides an interface for the user application process.

用户应用进程通过系统配置子模块,把初始配置打成下行初始配置命令包,下传给下位机,以实现对下位机的初始配置。 Configured by the user application process sub-module system, the initial configuration labeled downlink initial configuration command packet passed to the next lower bit machine, in order to achieve the initial configuration of the lower machine. 在设备运行时,用户应用进程根据所采集的数据判断电机的运行状况是否故障或升降速,并调用本模块提供的接口向下位机发送实时动态指令包,对下位机的状态进行实时控制。 Running on the device, the user application process is determined based on the data collected operational status of the motor is faulty or landing speed, and call this module provides an interface crew sent down time dynamic instruction packet, real-time control of the state bits machine. 另外,用户可以输入开始或停止数据采集命令,以控制下位机的工作。 Further, the user may enter a start or stop data acquisition command, to control the work of the next crew. 同时用户进程的命令和配置信息通过共享内存(参数配置表)通知与本模块的进程。 Simultaneous commands and configuration information of the user process and the notification process according to the present module through shared memory (parameter configuration table).

监测参数配置表的状态,若发现控制参数改变立即作出相应的响应。 A state table monitoring parameters, the control parameters are changed if found appropriate to respond immediately. 例如进入故障处理状态、停机等。 For example, enters a fault processing state, shut-down.

创建共享数据缓存区(包括缓存区1、2、4)和参数配置表。 Create a shared data cache (including cache, 2, 4) and the parameter configuration table. 并把参数配置表中实时动态指令状态中的开始/停止位设为停止。 And to start the parameter setting table in the real-time dynamic instruction status / stop bit to stop.

上位机用户图形交互构件的子模块如表4所示。 PC submodule member user interaction pattern as shown in Table 4. 时域图、频域图、轴心轨迹图、缓变数据趋势图、静态数据趋势图、柱状图等构件。 FIG time domain, a frequency domain diagram, Orbit, grading trend data, static data trend graph, histogram like member. 其实现主要是调用数据采集管理模块的缓冲区操作子模块读取缓冲区中的实时数据,并调用信号分析处理构件计算得到需要的数据分类显示。 Which achieve the main module is invoked sub operation data acquisition buffer management module reads the real time data in the buffer, and the call signal processing means analyzes the data classification calculated desired display. 用户图形交互构件是配置的,即用户可以根据现场设备的特点而定制自己的用户界面,以实现诊断仪的灵活配置并提高软件运行效率。 Graphical user interaction component is configurable by the user can customize their user interface according to the characteristics of the field device, for flexible configuration and diagnostic software to improve operational efficiency.

专家系统和显示构件一样也是调用数据采集管理模块的缓冲区操作子模块读取缓冲区中的实时数据,然后调用模块自身的可配置的规则,并将判断结果显示在界面。 Expert system is invoked and a display buffer operating member as the data acquisition sub-module reads the real-time management module of the data buffer, and then calls the module itself configurable rules, the determination result displayed in the interface. 由于PDA的存储容量有限,所以不可能在手持式故障诊断仪上实现很复杂的专家系统,用户可以根据现场情况选用一定的判断规则,对设备的某几个关键量进行状态分析和故障预测。 Due to the limited storage capacity of the PDA, it is impossible to achieve on the handheld complex fault diagnostic expert system, the user can choose certain rules determined according to the situation, an amount of a few key device of the state analysis and fault prediction.

如图10所示,上位机的历史数据分析构件主要是调用调用数据采集管理模块从PDA的SD卡中获得历史运行数据记录,并根据用户的界面命令实现数据的播放操作。 Historical data analysis means, the host computer 10 mainly call management module calls the data acquisition is obtained from historical operating data record PDA SD card, and realize a playback operation data according to user interface commands. 历史数据的重现可以使现场工作人员很方便的找到需要查询时刻的设备运行数据(特别是故障时刻),并可对比当前设备的运行数据,得出设备当前的运行状态。 Reproduce the historical data allows field workers easily find the need to query the time of equipment operating data (in particular, the failure time), and can compare current operating data for the device, the current operating status of the device come.

表1: Table 1:

A:采样方式:0-键相1-定时B:采样频率:如果A=0,则B无意义,填0。 A: Sampling mode: 1- 0- bonds of the timing B: Sampling frequency: If A = 0, B is meaningless, fill 0.

C:采样点数 C: number of samples

D:正常状态采样间隔时间E:异常状态采样间隔时间(一般与D相同)F:数据包上传周期(默认为两秒)G:最低开始转速H:额定正常工作转速I:升速采样列表:32个单元,每个单元2bytes,表示升速中须采样的一个瞬时速率J:降速采样列表:32个单元,每个单元2bytes,表示降速中须采样的一个瞬时速率K:故障采样总时间:4bytesL:快变通道总数:1byteM:快变通道列表:2bytes,后12位(从右往左,右边第一位为第一通道)每一位对应的最多12个快变通道,1-该通道打开,0-该通道关闭。 D: normal sample interval E: abnormal state sample interval (typically the same as D) F: packet uploaded period (the default is two seconds) G: starting with the lowest speed H: normal operation nominal speed I: speed liter sample list: 32 units each 2Bytes, showing a raising speed in the instantaneous rate to be sampled J: spin-down list of samples: 32 units each 2Bytes, showing an instantaneous deceleration rate of the sample to be K: total sample failure time: 4bytesL: Total fast channel change: 1byteM: fast channel change list: 2bytes, after 12 (from right to left, to the right of the first bit of the first channel) corresponding to each of a maximum of 12 fast varying channels, 1- the open channel, the channel is closed 0-.

N:缓变通道总数:1byteO:缓变通道列表:8bytes,按位对应最多64个缓变通道(从右往左,右边第一位为第一通道),1-该通道打开,0-该通道关闭。 N: total number of channels graded: 1byteO: grading channel list: 8bytes, the corresponding bit ramp up to 64 channels (from right to left, to the right of the first bit of the first channel), the channel opens 1-, 0- the Close the channel.

P:快变采集通道范围:1byte0-0~3共4个通道允许最高采样频率50K1-0~7共8个通道允许最高采样频率25K2-0~11共12个通道允许最高采样频率18KQ:缓变采集通道范围:1byte0-0~7 8个通道1-0~15 16个通道2-0~31 32个通道3-0~63 64个通道R:每一通道的静态数据格式:3 bytes(从右往左,右边第一位为第一项约定的静态数据项)每一位对应一项,1-该静态数据项上传,0-该静态数据项不上传。 P: fast channel change acquisition range: 1byte0-0 ~ 3 4 channels allows the maximum sampling frequency 50K1-0 ~ 7 8 channels allows the maximum sampling frequency of 12 25K2-0 ~ 11 channels allowed maximum sampling frequency 18KQ: Slow variable channel acquisition range: 1byte0-0 ~ 7 8 channels to 16 channels to 15 1-0 2-0 3-0 to 31 channels 32 channels 64 to 63 R: static data format of each channel: 3 bytes ( from right to left, to the right of the first for the first static data items agreed upon) each corresponding to one, 1 the static data uploads, 0 the static data item is not uploaded.

S:预留空间(以备扩充其他配置项):16bytes S: reserved space (for future expansion of the other CI): 16bytes

表2: Table 2:

表3:快变数据子包格式: Table 3: fast changing data sub-packet format:

A:总包ID号(4bytes)TS:时间戳(4bytes)B:子包大小(4bytes)C:电机运行属性位:0-正常;1-异常;2-升速;3降速(1bytes)D:子包数据属性位:0-快变数据子包;1-静态数据子包;2-缓变数据&开关量数据子包(1bytes)E:传感器采集模式位:0-定时采样;1-键相采样(1bytes)F:电机转速(E=0即定时采样时无意义)(4bytes)G:采样频率(4bytes)H:采样点数(0~1024)(2bytes)I:通道数目(0~12)(1bytes)Jm:第m通道的通道号(m:0~I)(1bytes)Km:第m通道的采样数据(数据个数为H)(单个数据大小为2bytes)静态数据(由快变数据计算所得)子包格式: A: The total packet ID number (4bytes) TS: time stamp (4bytes) B: subpacket size (4bytes) C: motor run attribute bits: 0- normal; 1- abnormal; a 2-liter speed; 3 deceleration (1bytes) D: bit sub-packet data attributes: 0- fast changing data sub-packets; 1- static data sub-packets; 2- graded data & amp; data sub-packet switch (1bytes) E: sensor acquisition mode bits: 0 sampling timing; 1- keyphasor samples (1bytes) F: (E = 0 i.e. meaningless when sampling timing) motor speed (4bytes) G: sampling frequency (4bytes) H: the number of samples (0 ~ 1024) (2bytes) I: number of channels ( 0 ~ 12) (1bytes) Jm: channel number of the channel m (m: 0 ~ I) (1bytes) Km: m-th sample data channel (the number of data is H) (single data size 2Bytes) static data ( the obtained) is calculated from the sub-packet format data quickly becomes:

A:总包ID号(4bytes)TS:时间戳(4bytes)B:子包大小(4bytes)C:电机运行属性位:0-正常;1-异常;2-升速;3降速(1bytes)D:子包数据属性位:0-快变数据子包;1-快变数据子包;2-缓变数据&开关量数据子包(1bytes)E:传感器采集模式位:0-定时采样;1-键相采样(1bytes)F:电机转速(E=0即定时采样时无意义)(4bytes)G:采样频率(4bytes)H:采样点数(0~1024)(2bytes)I:通道数目(0~12)(1bytes)L:每一通道快变数据所计算出的静态数据个数(0~24)(1bytes)Jm:第m通道的通道号(m:0~I)(1bytes)Km:第m通道的采样数据(数据个数为L,每个占4bytes,其顺序由配置文件来决定)缓变数据与开关量数据子包格式: A: The total packet ID number (4bytes) TS: time stamp (4bytes) B: subpacket size (4bytes) C: motor run attribute bits: 0- normal; 1- abnormal; a 2-liter speed; 3 deceleration (1bytes) D: bit sub-packet data attributes: 0- fast changing data sub-packets; 1- rapidly varying data sub-packets; 2- graded data & amp; data sub-packet switch (1bytes) E: sensor acquisition mode bits: 0 sampling timing ; 1- keyphasor samples (1bytes) F: (4bytes) G (i.e. meaningless when E = 0 sampling timing) motor speed: I sampling points (0 ~ 1024) (2bytes):: number of channel sample rate (4bytes) H (0 ~ 12) (1bytes) L: the number of each channel quickly becomes static data calculated (0 ~ 24) (1bytes) Jm: channel number of the channel m (m: 0 ~ I) (1bytes) km: m sampling data of the channel (the number of data is L, each representing 4bytes, the order determined by the profile) grading data sub-data and the digital packet format:

A:总包ID号(4bytes)TS:时间戳(4bytes)B:子包大小(4bytes)C:电机运行属性位:0-正常;1-异常;2-升速;3降速(1bytes)D:子包数据属性位:0-快变数据子包;1-快变数据子包;2一缓变数据&开关量数据子包(1bytes)E:开关量(占8bytes,最多可有64个开关量参数)(8bytes)F:缓变数据通道总数(0~64)(1bytes)Jm:第m通道的通道号(m:0~F)(1bytes) A: The total packet ID number (4bytes) TS: time stamp (4bytes) B: subpacket size (4bytes) C: motor run attribute bits: 0- normal; 1- abnormal; a 2-liter speed; 3 deceleration (1bytes) D: bit sub-packet data attributes: 0- fast changing data sub-packets; 1- rapidly varying data sub-packets; 2 a slowly varying data & amp; data sub-packet switch (1bytes) E: switch (% of 8bytes, can have a maximum 64 binary parameters) (8bytes) F: the total number of ramp data channel (0 ~ 64) (1bytes) Jm: channel number of the channel m (m: 0 ~ F) (1bytes)

Km:第m通道的采样数据(每个占2bytes)表4 Km: m-th sample data channels (each representing 2Bytes) TABLE 4

Claims (6)

1.一种故障采集检测装置,主要包括上位机和下位机,其特征在于:所述的下位机是基于16位MCU的数据采集板,与标准电压式位移和加速度电压传感器相连接,用于承担多路现场快变及缓变数据的采集及预处理,并通过串口传给上位机;所述的上位机是PDA,用于承担实时数据的二次处理运算、快变及缓变数据的实时动态分析显示及精简的专家系统故障监测,并通过串口接收下位机上传的数据;下位机的COM_PDA串口通过下位机的串口切换开关置与上位机的串口相连接,下位机的COM_PC串口通过下位机的串口切换开关置与PC的串口相连接。 1. A fault detection collecting means includes upper and lower machine wherein: said machine is based on the lower 16-bit data acquisition board MCU, are connected to a standard voltage displacement sensor and the acceleration voltage, for assume multiple site and graded fast changing data acquisition and pre-processing, and to the host computer through the serial port; said host computer a PDA, a second real-time data processing operations undertaken, fast changing data and graded real-time dynamic analysis and streamlined expert system fault detection, and data through the serial port to receive the next crew uploaded; COM_PDA serial lower machine is connected to the serial PC through the serial port switch is set lower machine lower machine COM_PC serial port lower serial switch connected to the opposite machine PC's serial port.
2.根据权利要求1所述的故障采集检测装置,其特征在于:所述的下位机包括信号整型和调理、放大电路、高频滤波电路、16位高集成度节能型MCU以及其调试接口电路、外扩快速SRAM电路、串口驱动电路、端口切换电路、外围器件供电电路、核心器件供电电路、AD外部电压基准电路。 The fault detection apparatus of the collection claim 1, wherein: said lower bit integer and comprises a signal conditioning unit, an amplifier circuit, a high-frequency filter circuit, a highly integrated 16-bit MCU and its energy-debug interface circuit, external expansion fast SRAM circuit, a serial driver circuit, a port switching circuit, the peripheral device power supply circuit, the core device power supply circuit, the AD external voltage reference circuit.
3.根据权利要求1或2所述的故障采集检测装置,其特征在于:所述的下位机输入电源接口与上位机PDA的电池输出接口相连接。 The fault detection means or the collection of claim 1, wherein: said lower device input and output interfaces battery power interface with the host computer is connected to a PDA.
4.根据权利要求1或2所述的故障采集检测装置,其特征在于:1)、下位机的电源模块,主要由三部分组成:模拟电路电源、数字电路电源和AD基准电压电源;模拟电路电源采用MAX751芯片,用于将1.2V~5.25V的输入电压稳压成5V电压输出;数字电路电源采用AAT3221-3.3芯片,用于将5V电压变为3.3V提供给MSP430F149、HY62WT08081E和MAX2323;MSP430F149片内AD的2.5V基准电压由TVL431芯片提供;2)、四路传感器的输出端接到JS1的1、2、3、4端,JS1的5、6、7、8端向传感器提供5V电压;四路0~5V的信号经R10~R17分压后进入运放LM324N,LM324N的输出端分别连接C7~C10,对四路信号进行滤波;最后输出AD1~AD4四路信号连接到MSP430F149的A4~A7管脚;3)、MSP430F149的URXD1和UTXD1管脚连接到串口驱动芯片MAX2323的T1IN和R10UT管脚,从MAX2323的输出管脚T10UT和R1IN连接到开关SW1中;系统在数据采集状态的时候SW1连 The fault detection means or the collection of claim 1, wherein: 1), lower machine power module, mainly consists of three parts: power analog circuits, digital circuits and power supply voltage reference AD; analog circuit power supply with MAX751 chip, for converting an input voltage of 1.2V ~ 5.25V to 5V regulated output voltage; AAT3221-3.3 chip for digital circuits using, for 5V voltage becomes 3.3V is supplied to MSP430F149, HY62WT08081E and MAX2323; MSP430F149 2.5V reference voltage is provided by the on-chip AD TVL431 chip; 2), the output of the sensor to the four terminal JS1 from 1,2,3,4, 5,6,7,8 terminal JS1 to the sensor provides a voltage of 5V ; four signals of 0 ~ 5V after dividing into the R10 ~ R17 LM324N operational amplifier, the output terminal are connected LM324N C7 ~ C10, the signal is filtered to four; AD1 ~ AD4 four final output signal is connected to the MSP430F149 A4 ~ A7 pin; 3), MSP430F149 URXD1 and the pin is connected to the serial port driver UTXD1 MAX2323 chip and the T1IN R10UT pins, connected to the switch SW1 from the output pin T10UT MAX2323 and R1IN; data collection system when the state even SW1 接MAX2323和JP1端口,使得下位机可以和PDA进行通讯;当系统在数据上传状态的时候SW1连接JP1端口和J1端口,使得PDA直接和PC的串口通讯。 MAX2323 and access port JP1, and such that the lower PDA unit can communicate; when the system is in a state when the data upload port JP1 and J1 SW1 is connected ports, so that the PC and the PDA direct serial communication. 4)、静态随机存储器采用HY62WT08081E,HY62WT08081E的地址总线由MSP430F149的P2口和P5口驱动,数据总线连接MSP430F149的P4口。 4), static random access memory using HY62WT08081E, HY62WT08081E address bus is driven by MSP430F149 port P2 and port P5, P4 of MSP430F149 data bus connection port.
5.一种故障采集检测方法,其特征在于:本手持系统由上、下位机构成,通过上位机PDA的5V锂电池给整个系统供电;现场检测时,系统的传感器接口连到安装在目标设备上的多路振动传感器;传感器的输入电压信号经过系统下位机的信号整型、调理电路以及放大、滤波电路得到AD的输入电压,输出至430的片内集成AD端口;430的12位高精度AD将输入的模拟信号转换成数字信号并做相应的预处理后按照旋转机械设备故障诊断数据传输协议打包成一定格式的数据包存入片外32K的SRAM中;在处于运行状态的上位机向下位机的串口发送一个请求包,下位机收到后从片外的存储器中提取相应的数据包发给片外的RS2323串口驱动芯片并通过COM_PDA串口发给上位机;上位机接收到数据包后按照旋转机械设备故障诊断数据传输协议进行校验、打时间戳和拆包并将各个子包分别 A fault detection method for collection, characterized in that: the present handheld system, the lower means is made on the host computer through the PDA lithium 5V power to the entire system; the scene detection, the sensor system is installed in ports to connect to the target device multiplexing the vibration sensor; input voltage signal from the sensor is integral signal conditioning circuitry lower machine and the amplification, filter circuit to obtain the input voltage AD, the inner sheet 430 to the integrated output of the AD port; 430 12-bit precision after the analog signal into a digital signal AD and input accordingly pre-packaged into a certain format in accordance with the rotating machinery fault diagnostic data transfer protocol packets stored in 32K SRAM outer sheet; at the host computer running the after the host receives the data packet; transmitting the serial bit machine a request packet, after the receipt of the next crew extracts the corresponding data packets from the off-chip memory chip sent RS2323 serial driver chip and sent to the host computer via the serial port COM_PDA verify rotating machinery fault diagnosis according to a data transfer protocol, and the timestamps and respective sub-packets are unpacking 放到几个系统共享内存缓冲区中;上位机的上层应用程序读取缓冲区的数据后根据协议进行解包,并提供给显示构件和专家系统构件;上位机的系统配置模块通过显示构件的系统配置界面得到用户输入的系统配置信息,按照旋转机械设备故障诊断配置协议打成系统配置包,在系统初启的时候按照旋转机械设备故障诊断配置信息传输协议下传给下位机,以实现对下位机的系统配置,如通道数、采样点数、采样平率等的参数设定。 Several systems into the shared memory buffer; unpacks the data read buffer after the application of the upper layer protocol in accordance with the host computer, and provided to the display member and the expert system member; PC system configuration of the display module member system configuration interface to obtain user input system configuration information, system configuration labeled packages in rotating machinery fault diagnostic configuration protocol, when the initial activation of the system configured as rotating machinery fault diagnosis device to the next lower machine information transmission protocol, in order to achieve lower computer system configuration, parameters such as the number of channels, sampling points, the sampling rate is set flat.
6.根据权利要求5所述的这种故障采集检测方法,其特征在于:需要将手持系统的数据备份到数据备份服务器或上传到装有专家系统的PC上时,将下位机的串口切换开关置到PC端,这样下位机的COM_PC串口就连接到PC的串口,然后用户进入上位机的数据上传界面来控制数据的传输。 The collection of this failure detection method according to claim 5, wherein: the handheld system needs to backup data to a data backup server or upload to a PC on which the expert system, the lower the switch machine serial opposite end to the PC, so that the serial COM_PC lower machine even to a PC serial port, and a user interface to upload the data into the host computer to control the transmission of data.
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