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Numéro de publicationCN1007757 B
Type de publicationDemande
Numéro de demandeCN 85101123
Date de publication25 avr. 1990
Date de dépôt1 avr. 1985
Date de priorité1 avr. 1985
Autre référence de publicationCN85101123A
Numéro de publication85101123.3, CN 1007757 B, CN 1007757B, CN 85101123, CN-B-1007757, CN1007757 B, CN1007757B, CN85101123, CN85101123.3
Inventeurs克里斯坦·特纳·肯珀, 罗伯特·李·奥斯本, 詹姆斯·克里斯托夫·贝洛
Déposant西屋电器公司
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes:  SIPO, Espacenet
Diagnostic system and method
CN 1007757 B
Résumé  Langue du texte original : Chinois
一种诊断系统,其中的中央诊断中心接收关于许多远程设备工作状态的探测器数据。 A diagnostic system wherein a central diagnostic center receives sensor data on a number of the remote device is operating properly. 在每个设备中记录一定的探测器信号,并在各自预定的发送时间内发送这些信号。 Recording certain detector signal in each device, and transmits these signals within the respective predetermined transmission time. 如果超过了某些起动限级,就立即建立与诊断中心的数据链,使它可以比它的正常确定的发送时间提前发送这些数据,以便对该设备作即时快速诊断分析。 If you exceed certain limits starting level, immediately establishing diagnostic centers and data links, so that it can send the data earlier than its normal transmission time determined for the rapid diagnostic device for real-time analysis. 在一个预定时间周期内,保持该设备和诊断中心之间的通信链开通,于是在这个周期内可以把更多的数据从该设备送到该诊断中心上去,并且将分析结果及指令从该诊断中心再返送回该设备。 Within a predetermined time period, maintaining the communication link between the device and the diagnostic center opening, so during this period can put more data to go from the center of the diagnostic device, and the analysis results and instructions from the diagnostic Center and then sent back to the device.
Revendications(15)  Langue du texte original : Chinois
1、一个诊断系统,用于在第一定位位置上监测一个过程,此过程包含多个产生与该过程工作状态有关的输出信号的探测器,该诊断系统包括有,位于上述第一定位位置的第一数据存贮装置,位于上述第一定位位置的第一计算装置,位于上述第一定位位置的第一发送机/接收机装置,该第一计算装置能够对上述探测器的输出信号进行周期性扫描,并将那些与前次扫描比较,在数值上显示出预定差值的信号和那些超过了各自预先确定的阈值的信号,存入上述第一数据存贮装置中,该第一发送机/接收机装置由上述第一计算机装置控制,还包括有远离上述第一定位位置的第二定位位置上的诊断中心和能够执行诊断分析的第二计算装置及第二数据存贮装置和第二发送机/接收机装置,该第二发送机/接收机装置在上述第二计算装置的控制之下接收从上述第一定位位置中送来的数据,由第二计算装置执行诊断分析,其特征在于,第一发送机/接收机装置在预先安排好的时间周期内将上述第一数据存贮装置的内容经过数据链发送到上述诊断中心上去,并且无论什么时候,只要一个信号超过了它的预定阈值,就在未事先确定的一段时间内将上述内容发送出去,上述第二发送机/接收机装置还可用于经过上述数据链将上述分析的结果信息再返送回第一发送机/接收机装置,上述第一发送机/接收机装置也可用来接收其发送来的信息。 1, a diagnostic system, for monitoring the position of a first positioning process, this process involves generating a plurality of operation state of the process relating to the output signal of the detector, the diagnostic system includes, located at the first position of the positioning first transmitter / receiver means of the first data storage device, located at a first computing means positioning said first position, located at the first localization position, the first computing device to the output signal of the detector for a period scan, and compared to those with the previous scan, in the numerical display signal and said first data storage device that exceeds the threshold value of the respective signal a predetermined, stored in a predetermined difference, the first transmitter / receiver means by said first computer control means further including diagnostic center and a second computing means capable of performing diagnostic analysis are positioned remote from said first location and a second location on the second position data storage means and the second transmitter / receiver means, said second transmitter / receiver device sent from said first receiving position location data under control of said second computing means, performed by the second computing means diagnostic analysis, characterized in that the first transmitter / receiver device at a pre-arranged within said first data storage device is a good period of time after the contents of the data transmitted to the diagnostic center chain up, and no matter what, as long as a signal exceeds its predetermined threshold value, it is not within the predetermined period of time to send out the above, the second transmitter / receiver device can also be used via the data link information of the analysis result is sent back again first transmitter / receiver means, said first transmitter / receiver device which may be used to receive information transmitted.
2、根据权利要求1所述的系统,其特征是,该系统包括有在上述第一定位位置上,用来显示所接收到的发送信息的显示装置,并且其中上述第一计算装置和第二计算装置分别由第一计算机装置和第二计算机装置构成。 2. The system of claim 1, characterized in that the system includes positioning in said first position, display means for displaying the received transmission information, and wherein said first and second computing means calculating means are respectively constituted by the first computer device and the second computer device.
3、根据权利要求1或2中所述的系统,其特征是,一旦出现一个探测器信号超过一个预定阈值级的情况,就发送上述第一数据存贮装置中的内容。 3. The system as claimed in claim 1 or 2, characterized in that a detector signal appears once exceeds a predetermined threshold value level, it sends the first data storage means contents.
4、根据权利要求3所述的系统,其特征是,当超过原来的阈值级时,上述第一计算装置能够指定一个新的阈值级。 4. The system according to claim 3, characterized in that, when more than the original threshold level, said first computing means capable of specifying a new threshold level.
5、根据权利要求1或3中的任何一个权利要求所述的系统,其特征是,一旦出现一个探测器信号超过一个预定变化率限度的情况,就发送上述第一数据存贮装置中的内容。 5, according to claim 1 or 3, any one of the preceding claims, characterized in that a detector signal when a predetermined situation occurs more than one rate of change limits, sends the first data storage means the contents of the .
6、根据权利要求5所述的系统,其特征是,上述变化率限度大于上述预定差值。 6. A system according to claim 5 or claim, wherein the rate of change limit is greater than said predetermined difference.
7、根据权利要求1或6中任何一个权利要求所述的系统,其特征是,上述第一计算装置,根据来自上述第二计算装置的指令,能够用来改变上述预定差值。 7. A system according to claim 1 or 6, wherein any one of the preceding claims, characterized in that said first computing means, based on an instruction from said second computing means, it is possible to change said predetermined difference.
8、根据权利要求1或3中的任何一个权利要求所述的系统,其特征是,如果上述诊断分析的结果指出一种异常状态,则在一段预定的时间周期里,保持数据链开放。 8, according to claim 1 or 3, any one of the preceding claims, characterized in that if the result of the diagnostic analysis indicated an abnormal state, for a predetermined period of time, keeping the data link open.
9、根据权利要求8所述的系统,其特征是,上述保持数据链开放的预定时间周期,短于两次按计划发送上述第一数据存贮装置中的内容之间的时间周期。 9. A system according to claim 8, characterized in that said holding data link open for a predetermined time period, shorter than twice the transmission time period of the first data storage means between the content planned.
10、根据权利要求8所述的系统,其特征是,在上述保持数据链开放的预定时间周期里,如果没有发送任何新的数据,则上述数据链装置自动终止。 10. A system according to claim 8, characterized in that, in the holding data link open for a predetermined time period, if not send any new data, then the data link means is automatically terminated.
11、根据权利要求9所述的系统,其特征是,在上述保持数据链开放的预定时间周期里,如果没有发送任何新的数据,则上述数据链装置自动终止。 11. A system according to claim 9, wherein in said holding data link open for a predetermined time period, if not send any new data, then the data link means is automatically terminated.
12、根据权利要求1所述的系统,其特征是,上述诊断分析的结果,在返送回上述第一定位位置之前,首先在上述第二定位位置上显示出来。 12. A system according to claim 1, characterized in that said diagnostic analysis results, before returning back to said first position location, the first location is displayed in said second position.
13、根据权利要求1所述的系统,其特征是,上述过程是发电过程,并且该过程至少包括有一台发电机、一台用于向该发电机馈送励磁电流的励磁机以及一台用于驱动该发电机的汽轮机。 13. A system according to claim 1, characterized in that the process is power generation process, and the process comprises at least a generator, a field current fed to the generator exciter used and one for The turbine drives a generator.
14、根据权利要求12所述的系统,其特征是,该系统包括多个用于测量上述发电机工作状态的探测器,多个用于测量上述励磁机工作状态的探测器以及多个用于测量上述汽轮机工作状态的探测器。 14. A system according to claim 12 or claim, characterized in that the system comprises a detector for measuring a plurality of operating state of the generator, for measuring a plurality of operating state of said exciter and a plurality of detectors for measuring said steam turbine operating state detector.
15、根据权利要求1所述的系统,其特征是,该系统包括有一个或多个其它远离上述诊断中心的定位位置,每个上述其它定位位置包括:数据存贮装置;计算机装置,该装置能够周期性地扫描探测器的输出信号,并把那些与前次扫描比较,在数值上显示出预定差值的信号和那些超过了各自预定阈值的信号,存入其数据存贮装置中;以及发送机/接收机装置,该装置在上述计算机装置的控制下,在预先安装好的时间周期内,将上述数据存贮装置的内容,通过数据链,发送到上述诊断中心上去,并且无论什么时候,只要一个信号超过它的预定阈值,就在未事先确定的一段时间内将上述内容发送出去。 15. A system according to claim 1, characterized in that the system includes one or more positioning location of the other remote from said diagnostic center, each said other position location comprising: data storage means; computer means can periodically scan the output signal of the detector, and to compare those with the last scan, the numerical display signal and that the signal exceeds the respective predetermined threshold value of a predetermined difference, which is stored in the data storage means; and transmitter / receiver means under the control of said computer means, in a pre-installed time period, the contents of said data storage means, via a data link, to said diagnostic center transmits up and whenever , as long as a signal exceeds its predetermined threshold value, it is not within the predetermined period of time since the contents sent.
Description  Langue du texte original : Chinois

[001] 本发明涉及用于监控一个过程的一个诊断系统,更具体地说,是经常用于诊断一个过程中可能误动作的装置。 [001] The present invention relates to a diagnostic system for monitoring a process, more specifically, a process is often used for the diagnosis apparatus may malfunction.

[002] 无论从安全的观点出发,还是从经济的观点出发,都必须要连续地监测各种过程的工作状态,以便对可能发生的故障及早地取得指示,从而可以采取一些校正措施。 [002] both from the standpoint of safety, or from an economic point of view, must be to continuously monitor the status of various processes in order to failures that may occur as early as possible to get instructions, which can take some corrective action.

[003] 如像发电设备发电这样的一些过程,为了取得许多工作参数的联机指示,在整套发电设备中,要用到上百个探测器。 [003] The number of processes such as power generation equipment, in order to obtain on-line indication of many operating parameters, the entire power plant, to use hundreds of detectors. 可以在设备上设置一套用于响应探测器输出的诊断系统,该系统连续地解释探测器的读数,并提供该设备工作状态的指示给设备操作人员,同时提出建议,采取从安全或经济角度出发而应采取的适宜行动。 You can set the device in response to a diagnostic system for the detector output, the system continuously explain detector readings and provides an indication of the state of equipment to the plant operator, together with recommendations, taken from a security or economic point of view and appropriate action should be taken.

[004] 可以使用存贮有诊断程序的数字计算机来完成这种诊断。 [004] You can use store diagnostic program digital computer to complete this diagnosis. 在较佳的实施方案中,近来的发展提出了使用被称作知识丰富的专家系统的计算机程序。 In a preferred embodiment, the recent developments made using a computer program is called a knowledgeable expert system. 这些专家系统是包含许多规则的基于规则的系统,这些规则产生于一个或多个诊断专家对一个特定设备的会诊结果。 The expert system is rule-based system contains many rules, these rules arise from one or more diagnostic expert consultation results of a particular device. 由于在一段时间后,会得到比较多的信息,因此如果需要的话,可以通过增加、删去或修改一些规则来修改程序。 Because after a certain period of time, you will get more information, so if necessary, by adding, deleting or modifying some of the rules to modify the program.

[005] 典型常用的设备可能包括有上百个探测器,这些探测器的输出信号必须要被周期性地扫描到,并且被存贮起来。 [005] A typical conventional device may include hundreds of detectors, the output signals of these detectors must be periodically scanned and is stored. 对于某些探测器来说,其扫描频率可能用秒钟表示,而对于其它一些探测器来说,就可能用分钟表示。 For some detectors, its scanning frequency may be expressed by seconds, but for some other detectors, it can be used in minutes. 因些,使用一个需要具有巨量存贮的专家诊断系统或其它诊断系统,对某些设备来说,就变得出奇的昂贵了。 Because some, the use of a huge amount of storage required to have an expert diagnostic system or other diagnostic systems, for some devices, it becomes surprisingly expensive.

[006] 本发明给出一种装置,利用这种装置可以连续地监测许多这样的设备,监测其异常工作状态,而成本比通常这种操作所需的要远远低得多。 [006] The present invention provides an apparatus, using such means may continuously monitor a plurality of such devices, the monitoring of its abnormal operating conditions, and the ratio is usually required for this operation cost is much lower.

[007] 一个诊断系统,用于在第一定位位置上监测一个过程,此过程包含多个产生与该过程工作状态有关的输出信号的探测器,该诊断系统包括有,位于上述第一定位位置的第一数据存贮装置,位于上述第一定位位置的第一计算装置,位于上述第一定位位置的第一发送机/接收机装置,该第一计算装置能够对上述探测器的输出信号进行周期性扫描,并将那些与前次扫描比较,在数值上显示出预定差值的信号和那些超过了各自预先确定的阈值的信号,存入上述第一数据存贮装置中,该第一发送机/接收机装置由上述第一计算机装置控制,还包括有远离上述第一定位位置的第二定位位置上的诊断中心和能够执行诊断分析的第二计算装置及第二数据存贮装置和第二发送机/接收机装置,该第二发送机/接收机装置在上述第二计算装置的控制之下接收从上述第一定位位置中送来的数据,由第二计算装置执行诊断分析,其特征在于,第一发送机/接收机装置在预先安排好的时间周期内将上述第一数据存贮装置的内容经过数据链发送到上述诊断中心上去,并且无论什么时候,只要一个信号超过了它的预定阈值,就在未事先确定的一段时间内将上述内容发送出去,上述第二发送机/接收机装置还可用于经过上述数据链将上述分析的结果信息再返送回第一发送机/接收机装置,上述第一发送机/接收机装置也可用来接收其发送来的信息。 [007] A diagnostic system, for monitoring the position of a first positioning process, this process involves generating a plurality of operation state of the process relating to the output signal of the detector, the diagnostic system includes, located at the first localization position a first data storage device, located at a first computing means positioning said first position, said first localization position located a first transmitter / receiver device, the first computing device to the output signal of the detector will be periodic scanning, and compared to those with the previous scan, on the numerical display signal and said first data storage device that exceeds the threshold value of the respective signal a predetermined, stored in a predetermined difference, the first transmission / receiver means by said first computer control means, further comprising location remote from said first position to a second positioning diagnostic center position and the second computing means capable of performing diagnostic analysis and the second data storage device and Two transmitter / receiver apparatus, the second transmitter / receiver device sent from said first receiving position location data under control of said second computing means, performed by the second computing means diagnostic analysis, which characterized in that the first transmitter / receiver device in a pre-arranged period of time the contents of said first data storage device via the data link to said diagnostic center transmits up, and no matter what time, as long as a signal exceeds its predetermined threshold value, it is not within the predetermined period of time to send out the above, the second transmitter / receiver device can also be used via the data link information of the analysis result is sent back to the first re-transmitter / receiver dryer means, said first transmitter / receiver device which may be used to receive information transmitted.

[008] 在方便的情况下,把第一数据存贮装置定位在第一定位位置上,在这个位置上还有一个计算机装置,该装置周期性地扫描探测器所产生的输出信号,并将那些与前次扫描比较、在数值上显示出预定差值的信号以及那些超过了各自预先确定的阈值的信号存入数据存贮装置中。 [008] In the case of convenience, the first data storing means positioned at a first localization position, in this position there is a computer device which periodically scans the output signal generated by the detector, and compared to those with the previous scan, the values showing a predetermined difference signal and a signal that exceeds a predetermined threshold value stored in the respective data storage means.

[009] 处于远离第一定位位置的第二定位位置上的诊断中心,包括有数据存贮装置和计算机装置,因而能够执行诊断分析。 [009] at a location remote from the first position to a second positioning diagnostic center position, including data storage means and computer means, it is possible to perform diagnostic analysis. 为了在预先安排好的时间内把第一数据存贮装置的内容发送到诊断中心去,例如每小时正发送,处在第一定位位置上的发送机/接收机装置是处于计算机装置控制之下的。 To the pre-arranged time to transmit the content of the first data storage means to the diagnostic center, for example, being transmitted per hour, at a first localization position on the transmitter / receiver device is a computer device is under the control of a. 该设备是切实可行的,因而,在常态的发送之间,无论什么时候,只要当信号超过了它预先确定的阈值,就将在未事先确定的一段时间内,发送第一数据存贮装置中的内容。 The device is practical, therefore, between the normal transmission, whenever, as long as it is when the signal exceeds a predetermined threshold value, it will not in the predetermined period of time, transmitting a first data storage means content.

[010] 诊断中心包括有接收从第一定位位置中送来的数据的装置,从而,可以进行诊断分析,并把其分析的结果又发送回第一定位位置中去。 [010] sent to the diagnostic center includes receiving from a first position data of the positioning means, whereby, diagnostic analysis can be performed, and the results of its analysis and is sent back to the first position to locate. 以这种方法,通过在中央诊断中心上进行的复杂的诊断分析,就可以同时监测在地球上不同的定位位置上的许多过程。 In this way, through sophisticated diagnostic analysis performed at a central diagnostic center, it is possible to simultaneously monitor a different location on the earth location on many processes.

[011] 现在,我们通过举例,参照附图,来说明本发明。 [011] We now by way of example, with reference to the drawings, the present invention will be described. 附图中: In the drawings:

[012] 图1是本发明实施方案的框图; [012] Figure 1 is a block diagram of an embodiment of the present invention;

[013] 图2是描绘一个典型过程探测器的输出曲线图; [013] Figure 2 is a graph depicting a typical process detector output graph;

[014] 图3是说明在过程定位位置上该系统工作情况的流程图; [014] FIG. 3 is a flowchart illustrating the process of positioning the system in the case of the position;

[015] 图4是说明在诊断中心上该系统工作情况的流程图。 [015] FIG. 4 is a flowchart illustrating operation of the system at the diagnostic center.

[016] 虽然本发明中的诊断系统是可以用于多过程诊断的,不论是静态定位上的过程诊断,还是动态定位上的过程诊断,但我们还是只举关于一套发电设备的例子来说明它,更具体地说,是根据汽轮发电机这种发电设备的例子,来加以说明。 [016] Although the present invention can be used for multi-diagnostic system diagnostic process, whether it is static positioning process diagnostics on the diagnostic process, or dynamic positioning, but we still give only about a power plant example to illustrate It is, more specifically, based on turbo-generator power plant such examples, to be described.

[017] 图1示出了用数字1,2,…n标明的许许多多的发电设备,其中典型的一个是用设备2进行说明的。 [017] Figure 1 shows a digital 1,2, ... n indicate the many power generation equipment, which is typically a device 2 will be described in. 该设备至少包括一个可以用来驱动发电机11的汽轮机10,发电机被馈送有来自励磁机12的励磁电流。 The apparatus comprises at least one steam turbine generator 11 may be used to drive 10, is fed with the generator field current from the exciter 12. 典型的设备包括有许多探测器,如像用于测量汽轮机、发电机以及励磁机这些装置中不同位置上的温度的探测器,以及用于测量压力、振动、速度、电流、电压、频率、湿度等的探测器。 A typical device includes a plurality of detectors, such as for measuring the temperature at different locations of the turbine, generator and exciter detectors in these devices, as well as for measuring pressure, vibration, speed, current, voltage, frequency, humidity and other detectors.

[018] 在其定位位置上的设备,包括一个输入-输出电路14和一个可以用来周期性地扫描所有探测器的输出信号、并能把某些信号存入数据暂存器18中去的数据采集计算机16。 [018] device in its positioning position, comprising an input - output circuit 14 and an output signal for periodically scanning all the detectors, and will make certain signals stored in the data register 18 to the data acquisition computer 16. 由于该设备上的数据存储容量多多少少要受到一些限制,因此只能存储这些探测器所给出来的某些信号。 As the data storage capacity of the device more or less subject to some restrictions, it can only store these detectors give out some signals. 根据标准实验,只能存储那些超过了预定死区的探测器信号。 According to the standard test, can store more than those of the detector signal of a predetermined dead zone. 也就是说,如果一个探测器信号,在一次扫描中得到的数值,与前次扫描所存储的数值相比较,其变化量超过了一个预定的量,那么这个探测器的信号就将被存入数据存储器18。 That is, if a detector signal, obtained in one scan values, compared with the values stored in the previous scan, the change amount exceeds a predetermined amount, then the signal will be stored in the detector data memory 18.

[019] 根据本发明,如果一个探测器的信号值超过某些预先确定的正向阈值级或负向阈值级的话,则另外存储这个探测器的信号;并且,如果需要的话,也可以把超过预定变化率限度的那些信号存贮起来。 [019] According to the present invention, if a sensor signal value exceeds a certain predetermined threshold level positive or negative threshold level, then the sensor signal is additionally stored; and, if desired, may be put over Those signal of a predetermined rate of change limits stored. 在这里,探测器信号的意思不仅是指一个单一的探测器的输出信号,而且是指某些探测器输出信号的预定组合,n个探测器信号的平均值就是一个例子。 Here, the meaning of the detector signal is not only refer to a single detector output signal, and refers to some predetermined combination of the detector output signal, the average value of n is an example of the detector signals.

[020] 以通信接口20表示的发送机/接收机装置,处于计算机16的控制之下,并且周其性地把数据存贮器18中的内容发送到一个远距离的诊断中心30上去。 [020] In a communication interface 20 represents the transmitter / receiver means, under the control of computer 16, and the manner of its peripheral data memory 18 transmits the contents to a remote diagnostic center 30 up. 例如,这样的周期性发送可能是每小时一次,在这种情况下,从前次发送以来采集的所有数据都将被发送出去。 For example, this may be periodically transmitted once per hour, in this case, all the data collected since the previous transmission will be transmitted. 然而,如果一个或者多个探测器的信号值都超过了各自的阈值级或变化率限度,那就将会中断正常的周期发送程序,这样一来,将会立即发送数据存贮器18中的内容,以使当发电设备处于正在增长的危险状态时,诊断中心能执行即时快速分析。 However, if one or a plurality of detector signal values are greater than the respective threshold level or rate of change limit, it will interrupt the normal cycle of sending program, this way, it will be sent in the data memory 18 content, so that when the power plant is growing dangerous state, the diagnostic center can perform an immediate rapid analysis.

[021] 在没有一个探测器的信号值超过它的预定死区,并且没有一个探测器的信号值超过它预定的阈值级或变化率限度的情况下,该数据的发送仍然可以进行,以指示该系统正在工作,只不过这些数据与上个小时发送的完全相同。 [021] In the absence of a sensor signal value exceeds its predetermined deadband and no signal exceeds its predetermined value detector threshold level or rate of change limits, transmitting the data can still be performed, to indicate The system is working, but these data are identical with the last hour sent.

[022] 诊断中心30包括诊断中心计算机32以及一个长期存贮器34,该存贮器具有足够容量,足以存贮从所有设备中发送来的全部或者大部分数据。 [022] the diagnostic center 30 includes the diagnostic center computer 32 as well as a long-term memory 34, the memory has a sufficient capacity, enough to store all of the device from all or most of the transmitted data. 计算机32可以用来完成根据所接收来的数据而进行的诊断分析,而且在一个实施方案之中,可以配备上一个专家系统型的程序。 Diagnostic analysis computer 32 may be used to complete the reception of the data is performed in accordance with, and in one embodiment among the expert system can be equipped with a type of program.

[023] 为访问计算机32,可包括有一个操作员终端36,还可包括有一个或多个显示器以及一个用于人一机对话控制的键盘。 [023] for access to the computer 32, may include an operator terminal 36, may also include one or more displays and a man-machine interactive control for the keyboard.

[024] 在该诊断中心里,给出了一个用通信接口33表示的发送机/接收机装置,它是在计算机32控制之下,接收来自所有的设备、在其各自的周期中发送来的数据,以及从不确定发送中发送来的数据。 [024] In the diagnostic center, gives a communication interface 33 represents the transmitter / receiver device, which is under the control of computer 32, receives from all the devices in their respective cycles transmitted data, and transmitted from the uncertainty in the data transmitted. 可以通过通信接口,把诊断结果及指令信息再返送回各个设备,这些结果可以在操作终端40的显示器中显示出来。 Via the communication interface, the diagnostic results and instruction information for each device and then sent back, the results can be displayed on the display 40 of the operation terminal.

[025] 在一个实施方案中,该通信接口可以采用调制解调器的方式,从而通过常用的电话线建立起数据链来。 [025] In one embodiment, the communication interface may use a modem manner, thereby to establish a data link via conventional telephone lines. 采用其它类型的数据链也是可能的,如像通过卫星从诊断中心向设备发送数据,或者反之,当设备和诊断中心处在不同的大陆上时,这样的卫星发送更有其特殊作用。 Other types of data links are also possible, such as image data transmitted to the device via satellite from diagnostic center, or vice versa, when the device and diagnostic centers are in different continents, the more such satellites transmits its special role.

[026] 本发明的工作,我们将针对一个温度探测器形式的单个探测器来加以说明。 [026] The present invention work, we will be illustrated for a single detector in the form of a temperature probe. 用图2来说明它的温度随时间变化的关系,其中的纵坐标轴代表温度,横坐标轴代表时间。 Figure 2 will be described with its temperature change with time of the relationship, in which the ordinate axis represents the temperature, the abscissa axis represents time.

[027] 假设,该特定的探测器是一个具有上限温度阈值为60℃、下限温度阈值为30℃的热电偶,其中温度用摄氏度表示。 [027] Assuming that the detector is a specific upper limit temperature threshold is 60 ℃, the lower limit temperature threshold is 30 ℃ thermocouple with which the temperature in degrees Celsius. 该探测器具有每分钟20℃的温度变化率限度及1℃的死区。 The probe having the temperature changing rate limit and deadband 20 ℃ per minute of 1 ℃.

[028] 在参考图1的基础上,对于这个特定的探测器来讲,我们假定在时间t0之前存贮在数据存贮器中的温度是57.4℃。 [028] On the basis of the reference to Figure 1, for this particular probe is concerned, we assume that prior to time t0 stored in the data memory temperature is 57.4 ℃. 在t0时刻扫描到该探测器时,显示出57.5℃的温度来。 At time t0 scanned into the detector, showing the temperature to 57.5 ℃. 由于其差值仅是0.1℃,在t0时刻的温度值57.5℃不会被存贮起来,因为在这个例子中,其差值没有超过预置的1℃这个死区。 Since the difference is only 0.1 ℃, at temperature of 57.5 ℃ time t0 will not be stored together, as in this example, the difference does not exceed the preset dead zone 1 ℃. 举例来讲,可能在5秒钟之后,又有一次扫描,读出该探测器的输出,显示出的是58.1℃的温度值。 For example in terms of possibly after 5 seconds, another scan, reads the output of the detector, showing the temperature of 58.1 ℃. 这个温度值与上一次存贮起来的温度值57.4℃相比较,所产生的差值是0.7℃,因而也不会被存贮起来。 This temperature value is stored together with the last temperature value 57.4 ℃ comparing the resulting difference is 0.7 ℃, and thus will not be stored.

[029] 在t2时刻,其温度是58.5℃,相对于上一次存贮起来的温度值57.4℃来讲,存在有1.1℃的差值,因而就把这个58.5℃的温度值以及时间t2存贮到数据存贮器18里去了。 [029] At time t2, the temperature is 58.5 ℃, with respect to a storage temperature value up 57.4 ℃ speaking, there is a difference of 1.1 ℃, and thus put the temperature value and the time t2 of 58.5 ℃ storage gone to the data memory 18. 现在,这个58.5℃的温度值就成为其后续读数的在先存贮值,在t3时刻的读数是59.2℃,只产生出0.7℃的差值,其结果也是不会发生任何动作。 Now, this temperature 58.5 ℃ has become its previous value stored subsequent readings, the readings at t3 is 59.2 ℃, 0.7 ℃ only produce a difference, the result is not any action. 在t4时刻,其温度是60.5℃,它与上一次存贮起来的58.5℃的温度值相比较,产生了2℃的差值。 At time t4, the temperature is 60.5 ℃, it is stored together with the previous temperature value as compared to 58.5 ℃, 2 ℃ the generated difference. 2℃超过了1℃的死区,因些就会把这个时间及温度值存贮起来。 2 ℃ more than 1 ℃ dead, because some will put the time and temperature values stored. 此外,这时已超过了60℃的阈值上限,于是就要起动设备和诊断中心之间的数据链,立即发送存贮器18中的所有数据,以使诊断中心可以借助于计算机32完成一次诊断分析。 In addition, when the upper threshold has been exceeded 60 ℃, so we should start the data link between the device and the diagnostic center, sending all the data in the memory 18 immediately, so that the diagnostic center computer 32 can be completed by means of a diagnostic analysis.

[030] 由于已超过了阈值级,于是数据采集计算机16就设置一个新的阈值级。 [030] Because the threshold level has been exceeded, then the data acquisition computer 16 to set a new threshold level. 举例来说,设这个新的阈值级比原来的阈值级高出3℃,或者说设为63℃。 For example, set the new threshold level 3 ℃ higher than the original threshold level, or set to 63 ℃. 再者还要注意到,在t5时刻,取得60.5℃的温度值,超过了每分钟20℃的变化率限度,也会指示立即发送存贮的数据。 Furthermore Note also that, at time t5, to obtain 60.5 ℃ temperature value, exceeding the limits of 20 ℃ change rate per minute, are also indicated immediately transmit the stored data.

[031] 在t5时刻,由于没有超过限级,因此什么动作都不会发生;而在t6时刻,由于超过了1℃的死区,所以就把62℃的温度值以及时间t6存储起来了。 [031] at the time t5, since no more than limit level, so what action will happen; but at the time t6, due to exceeding the dead zone 1 ℃, so put the temperature of 62 ℃ and time t6 stored up.

[032] 在t7时刻,温度值为62.9℃,因此也是什么动作都不会发生;而在t8时刻,温度达到63.5℃,由于超过了死区,也超过了其第二个阈值级,因此指令所存贮的数据向诊断中心作即时发送。 [032] at time t7, the temperature is 62.9 ℃, therefore what action will happen; in time t8, the temperature reached 63.5 ℃, due to exceeding the dead zone, which has more than a second threshold level, so the instruction the stored data to the diagnostic center for the immediate sending.

[033] 另外,数据采集计算机16再指定一个比上一次设置的阈值高出3℃的新的阈值限级,66℃。 [033] In addition, the data acquisition computer 16 then specifies a time than the upper threshold value set higher than 3 ℃ new threshold limit level, 66 ℃. 从t8到t9。 From t8 to t9. 温度增长了0.5℃,因此什么动作都不会发生;而在t10时刻,温度达到65.2℃。 Temperature increase of 0.5 ℃, and therefore what action will happen; but at the time t10, the temperature reached 65.2 ℃. 由于已超过了死区,所以将该时间和温度值存贮起来。 Because more than the dead zone, so the time and temperature values stored. 此外,由于超过了每分钟20℃的变化率限度,于是指令数据链立即起动,发送已存信息。 Further, since the rate of change exceeds the limit of 20 ℃ per minute, then immediately start the data link instruction, transmits the stored messages.

[034] 下面的表格给出了上述工作过程的概要。 [034] The following table gives a summary of the above work processes.

[035] (1)什么动作也不做。 [035] (1) What action do not do it.

[036] (2)存贮时间和温度值。 [036] (2) Storage time and temperature values.

[037] (3)起动到诊断中心上去的数据链。 [037] (3) Start up the data to the diagnostic center chain.

[038] (4)设置新的限级。 [038] (4) to set a new limit level.

[039] 既然已经说明了单个温度探测器温度上升的情况,那么也就理解了把它运用到温度下降情况的原理。 [039] Now that you've explained the situation of a single temperature sensor temperature rises, so will it be applied to understand the circumstances of the principle of the temperature drop. 其中不过是,如果超过了原来的一个比较低的限级,就设置一个新的、更低的限级。 Wherein, however, if more than the original lower limit of a class, then a new set, a lower limit level. 既然说明了一个温度探测器随时间变化的关系,那么同样的原理也可以运用到其它的探测器上去。 Since illustrates a temperature probe versus time relationship, then the same principle can be applied to other detectors up. 这些探测器可以用图2中所说的5秒钟的扫描周期来扫描,也可以用比5秒钟更短或更长的周期来扫描。 These detectors can be used in Figure 2 of said scanning period of 5 seconds to scan, and to be a shorter or longer than the period of 5 seconds to scan.

[040] 图3中,说明了在设备2上的数据采集计算机16的操作流程图。 [040] Figure 3, illustrates the data acquisition device 2 in the flowchart of the operation of the computer 16. 通过方框50的操作,数据采集计算机16将扫描各个探测器的输出,并对这些输出信号作必要的预处理,这种预处理包括信号的修整、规范化、求平均、数-模转换、将某些量转换为工程单位。 Through the operation of block 50, the data acquisition computer 16 will scan the output of each detector, and these output signals as necessary pretreatment, which includes trimming signal preprocessing, normalization, averaging, digital - analog conversion, certain amount of conversion to engineering units. 将每个探测器的信号与上一次所存储的数值相比较,来看对于某个特定的探测器来说,是否已经超过了所指定的死区。 Each detector signal is compared with the last stored value, look for a particular detector, it has exceeded a specified deadband. 如果判定方框52指出,已经超过了,那么就按照方框54所指示的,把探测器的新数值存贮到有限的数据存贮器18中去。 If decision block 52 that the already over, then in accordance with block 54 indicates, the new value of the detector to the limited data storage memory 18 to go. 如果没有超过这个死区,那么就像判定方框56所指示的那样,作出一个判定,判断是否超过了任何诊断起动限级。 If you do not exceed the dead zone, as judged as indicated by block 56, made a decision to determine whether more than any diagnostic start limit level. 这个限级可以是一个阈值限级,也可以是一个变化率限度,如以上所描述的那样。 This limit may be a threshold level limit level, it can be a rate of change limit, As described above. 这个过程也要根据作为方框54的操作结果存贮起来的数据而执行;其中,就像由判定方框58所指示的那样,如果一个设备不是处在警戒-工作(ALERT-ACTIVE)状态的话,将由判定方框56检查所存储的数据,来看是否已经超过了诊断起动的限级。 This process is also based on a result of the operation block 54 data stored up is performed; wherein, as indicated by decision block 58, as if the device is not in an alert - Working (ALERT-ACTIVE) state, then , by decision block 56 the stored data to check, to see if the diagnostic start has exceeded limit level.

[041] 判定方框60确定现在是否是按计划安排好的发送时间,比如每小时正;如果不是,则再返回到A点重复此过程。 [041] decision block 60 to determine whether it is planned to send scheduled time, such as every hour now; if not, then go back to point A repeat this procedure. 如果是预定发送的时间,那么就如同方框62所指示的那样,一个通信链对诊断中心是开放的。 If it is time to send the book, then as indicated in block 62, as a communications link to the diagnostic center is open. 如果方框56判定的结果已经超过了诊断起动的限级的话,这个通信链也是开放的,在这种情况下,如同方框64所指示的,将会把超过了这个限级的一个或多个探测器的时间和数值存贮起来。 If the determination result of block 56 has exceeded the limit level diagnostic start, then the communication link is open, in this case, as indicated by block 64, this will put more than a limited level of one or more detectors and time values stored.

[042] 一旦打开了这个通信链,就如同方框66所指示的那样,将把自上一次发送之后所存贮起来的所有数据送到诊断中心,进行分析。 [042] Once opened the communication chain, just as that indicated in box 66, once all the data will be sent after the stored up since the diagnostic center to conduct the analysis. 如果该设备正处于警戒-工作(ALERT-ACTIVE)状态,那么作为判定方框58的操作结果,就会立即把作为方框54的操作结果而存贮起来的任何新的数据发送出去。 If the device is in the alert - Working (ALERT-ACTIVE) state, then decision block 58 as a result of the operation, no new data will be immediately as a result of the operation block 54 and stored together sent.

[043] 一旦完成了诊断,诊断中心可以把关系到设备状态的信息再返送回该设备,诸如操作员应采取哪些行动,要作出哪些变动,等等。 [043] Once the diagnosis, diagnostic centers can be related to device status information and then sent back to the device, such as an operator what action should be taken, what changes should be made, and so on. 相应地,方框68保证会把任何从诊断中心接收来的结果,在该设备的操作员终端40上显示出来。 Accordingly, any results received from the diagnostic center will ensure that the block 68, is displayed on the operator terminal 40 of the apparatus.

[044] 图4表示诊断中心计算机32的工作流程图。 [044] Figure 4 shows an operation flowchart of the diagnostic center computer 32. 根据不同的设备类型以及正在诊断的不同设备,方框80将会保证预置对于一个专家系统来说是适当的诊断程序或基本规则。 Depending on the type of device and the different device being diagnosed, block 80 will ensure that the preset for an expert system is appropriate diagnostic procedure or basic rules. 方框82指出接收从一个设备中发送来的数据,方框84指示可以执行诊断分析。 Block 82 receives from a pointed device transmitted data, block 84 indicates can perform diagnostic analysis.

[045] 通过方框86的操作,把诊断分析的结果以及该探测器的数据都存贮起来,并通过判定方框88作出判定,是否应该作为分析结果而预置警戒状态。 [045] by the operation of block 86, the results of diagnostic analysis and probe data are stored together, and by decision block 88 to determine whether it should be analyzed and pre-alert status as a result. 如果判定结果指出要预置警戒状态的话,方框90将发出一个指令,把该设备置于警戒-工作(ALERT-ACTIVE)的状态。 If you want to pre-judge concluded that the state of alert, then block 90 will issue a command to the device is placed on alert - Work (ALERT-ACTIVE) state. 如果判定结果不是要预置警戒状态,方框92将发出一个指令,比如,把该设备置于OK(正常)状态,或者置于CONCERN(关连)状态。 If the decision is not to pre-alert, block 92 will issue a command, for example, put the device into OK (normal) state, or placed CONCERN (connected) state.

[046] 开始,在计算机内建立定时功能,如果指示出处于警戒-工作(ALERT-ACTIVE)状态,就像方框94所指示的那样,把该定时器设置在某一预定的时间区间上,比如说15分钟,如果没指示出处于警戒-工作(ALERT-ACTIVE)状态,就象方框96指示的那样,把定时器置零。 [046] began to establish in the computer timing, if indicate on alert - Work (ALERT-ACTIVE) status, as indicated as block 94, the timer is set on a predetermined time interval, For example, 15 minutes, if not indicate on alert - Work (ALERT-ACTIVE) status, as indicated in block 96, as to the timer set to zero.

[047] 虽然在诊断中心上可以得到诊断的结果,但对把其结果返送回该设备来说,必须要给予授权。 [047] Although the results can be diagnosed on the diagnostic center, but the result is sent back to the device, it must be given authorization. 可以把一个发送位置入到该计算机程序中去;因此,如果判定方框100指出,对于该特定设备来说,置定了发送位或者发送特征位的话,那么就可以如同方框102所指示的那样,把诊断结果再返回该设备。 Can be put into a position to transmit the computer program to go; Thus, if decision block 100 that for this particular device, a home or send a given transmission bit flag, then block 102 can be indicated as above, the diagnosis result is then returned to the device. 这个发送不能仅包括设备状态,作为一个诊断结果,可以对改变某些参数发送一些指令,比如说,死区的宽度、阈值或者变化率限度。 This not only includes sending device status, as a result of the diagnosis can be transmitted to change certain parameters of some instructions, for example, the width of the dead zone, the rate of change threshold or limit. 其分析结果可能指出,应该发送更多的数据,在这种情况下,可以把死区变窄,或者降低起动限级。 Analysis results may indicate, more data to be transmitted, in this case, the dead zone can be narrowed, or to reduce the starting limit level. 相反地,如果诊断结果指出实际上没有什么故障,而且送的数据太多了,那么可以把死区加宽,并且提高起动限级。 Conversely, if the diagnostic results indicate that in fact there is no fault, and send too much data, you can widen the dead zone, and improve the starting limit level.

[048] 如果对于某个特定的设备来说,没有置发送特征位,那么应该指出,在发送适当的指令之前,诊断中心上的人员要对某些事项作进一步的检查。 [048] If for a particular device, it is not set to send the flag, it should be pointed out that before sending the appropriate instruction, diagnostic center staff on certain matters to be further examination. 不论是哪种情况,判定方框104都检查定时器,判定该定时器是否是零。 In either case, decision block 104 checks the timer, it is determined whether the timer is zero. 如果定时器是置零,或者由原来所置的数值减到零,那么就如同方框106所指示的那样,断开与该设备的通信链。 If the timer is set to zero, or from the original value of the set to zero, then as a block, as indicated by 106, disconnect the communication link with the device. 如果定时器不是零,就由判定方框108来确定是否从该设备中接收了新的数据,如果接收了,通过由方框110所指示的设定定时器,使通信链至少在另一个15分钟期间内是保持开放的。 If the timer is not zero, then the decision block 108 to determine whether the new data received from the apparatus, if received, as indicated by block 110 by setting the timer, the communication link at least another 15 over a period of minutes to keep open. 如果一直没有接收到任何新的数据,就可以通过方框112的操作,减小该定时器,如果在15分钟的时间期间里,一直没有接收到任何新的数据,定时器将被减到零,在这种情况下,就会断开与该设备的通信链。 If you have not received any new data, it can block 112 operations, reducing the timer, if during the time of 15 minutes in, has not received any new data, the timer will be reduced to zero In this case, the communication link will be disconnected from the device.

[049] 因此,我们描述了一个诊断系统,其中包含有用于复杂的诊断分析装置的一个诊断中心,它可以对位于整个国家或整个世界地域内的一个或多个过程设备进行分析。 [049] Thus, we describe a diagnostic system, which comprises a diagnostic center for sophisticated diagnostic analysis apparatus, which can be analyzed located throughout the country or the world to within one or more process devices. 每个设备都将具有一个比较便宜的数据收集系统,用来向诊断中心作预定的周期性发送。 Each device will have a relatively inexpensive data collection system to the diagnostic center for scheduled periodic transmission. 根据某些状态的出现,将会中断这种周期发送,以便完成某些数据的即时发送,这样,把数据发送及诊断处理减至最低限度的同时,对于每个设备来说,仍然可以提供准确地、及时地诊断。 According to some states appear, it will send an interrupt this cycle, in order to complete some of the data is sent immediately, so that the data transmission and diagnosis process is reduced to a minimum at the same time, for each device, you can still provide accurate and timely diagnosis. 诊断中心可以遥控改变任何已经制定好的发送周期,以及其它一些参数,如像死区及起动限级,为的是对该系统给予既灵活又集中的发送控制。 You can change any of the remote diagnostic center has developed a good transmission cycle, as well as other parameters, such as the dead zone and start limiting level, in order to give the system flexible and centralized transmission control.

[050] 表时间温度上一次存贮的温度值差值新存贮的温度值是否超过动作死区阈值限级变化率限度t0t1t2t3t4t5t6t7t8t9t1057.558.158.559.260.561.062.062.963.564.065.257.457.457.458.558.560.560.562.062.063.563.50.10.71.10.72.00.51.50.91.50.51.757.457.458.558.560.560.562.062.063.563.565.2否否是否是否是否是否是否否否否是否否否是否否否否否否是否否否否否是(1)(1)(2)(1)(2)(3)(4)(1)(2)(1)(2)(3)(4)(1)(2)(3) [050] on a time-temperature table stored in the temperature difference between the new value stored in the operation temperature exceeds the dead zone threshold limit level change rate limit t0t1t2t3t4t5t6t7t8t9t1057.558.158.559.260.561.062.062.963.564.065.257.457.457.458.558.560. 560.562.062.063.563.50.10.71.10.72.00.51.50.91.50.51.757.457.458.558.560.560.562.062.063.563.565.2 No No Yes No Are Are Are Are No No No No No No No No No No No No No Yes (1) (1) (2) (1) (2) (3) (4) (1) (2) (1) (2) (3) (4) (1) (2) (3)

[051] [051]

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Classifications
Classification internationaleG05B23/00
Classification coopérativeY04S10/30, Y04S40/143
Événements juridiques
DateCodeÉvénementDescription
24 janv. 1987C06Publication
29 juin 1988C10Entry into substantive examination
25 avr. 1990C13Decision
2 janv. 1991C14Grant of patent or utility model
9 févr. 1994C19Lapse of patent right due to non-payment of the annual fee