JP2008002890A - Measuring device management system - Google Patents

Abstract

A measurement device management system is provided that can detect an abnormality of an individual measurement device at an early stage even when redundant measurement is performed by a plurality of measurement devices.
A measurement apparatus management system 1 measures the same measurement object among measurement objects 105a to 105c by measurement apparatuses 104a to 104c, and the management apparatus 102 performs measurement based on measurement apparatus diagnosis reference information 202. Whether or not each of the data is in the normal region is diagnosed by the measurement device diagnosis unit 310, and when any measurement data is not in the normal region, the measurement device related to the measurement data not in the normal region is abnormal The information indicating is output.
[Selection] Figure 1

Description

  The present invention relates to a measurement device management system.

  In industrial plants, etc., maintenance is performed to check whether correct measurement data has been acquired at each measurement point by inspecting the measurement equipment in order to perform constant processing with high reliability. Management is done. For example, when a finite-life part is included in a measuring instrument, there is a high possibility that it will become a problem if it is left after the expiration date. Therefore, it is necessary to check and replace it at a predetermined time.

Regarding the maintenance management of this measuring device, for example, in Patent Document 1, a measuring device and a service management center that performs maintenance management of the measuring device are connected via a network, and a measuring device installed in a remote place is disclosed. A technique related to a measurement data management system that can quickly cope with an abnormal value is disclosed. With this technology, it is possible to detect and deal with the occurrence of illegal data output or data loss at an early stage via a network when a partial failure or the like of a measuring device occurs.
JP 2003-324544 A

  However, in the above-described conventional technology, in order to obtain highly reliable measurement data, when a measurement device is duplicated or multiplexed for one measurement point and measured redundantly, the duplicated or multiplexed measurement device is used. If there is no breakdown, there is no illegal data output or data loss related to the measurement point. Therefore, it is not possible to detect an abnormality at an early stage such as a stage where one measurement device fails.

  The present invention has been made in view of the above-described problems of the prior art, and is a measurement device management system that can detect an abnormality of an individual measurement device at an early stage even when redundant measurement is performed by a plurality of measurement devices. The issue is to provide

  In order to solve the above-described problem, the invention according to claim 1 is configured such that a plurality of measuring devices are connected to the same measurement object, and measurement data output from the measuring device is managed by a management device. In the measurement management system, the management device compares reference data stored in advance in storage means with each of measurement data acquired by a plurality of measurement devices connected to the same measurement object, and any one measurement data When the data is not normal data, a measurement device diagnosis unit is provided that outputs information indicating that the measurement device related to any one of the measurement data is abnormal.

  The invention according to claim 2 is the invention according to claim 1, wherein the measurement device diagnosis means of the management device is a plurality of measurement devices connected to the same measurement object as the reference data stored in advance in the storage means. Each of the acquired measurement data is compared, and when all the measurement data is not normal, information indicating that the measurement device related to all the measurement data is abnormal is output.

  The invention according to claim 3 is the invention according to claim 1, wherein the measurement device diagnosis means of the management device is a plurality of measurement devices connected to the same measurement object as the reference data stored in advance in the storage means. Each of the acquired measurement data is compared, and when all the measurement data is normal, the measurement data are compared with each other, and warning information is output when the measurement data are not substantially the same. And

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the management device stores information output by the measurement device diagnosis unit in the storage unit as measurement device maintenance information. Diagnostic information recording means, and maintenance report means for displaying abnormality and / or warning information related to the measurement device on the display means based on the measurement device maintenance information stored in the storage means, further comprising: .

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the management device is a measuring device in response to a request from a terminal that is communicably connected to the management device. It is further characterized by further comprising a measuring device information reference means for outputting information related to the above to the terminal.

  The invention according to claim 6 is the invention according to claim 4 or 5, wherein the management device performs login authentication based on user registration information stored in the storage means and uses the user who has logged in. And an access management means for accepting only the user preset in the user registration information among the users, the display in the maintenance report means and / or the request from the terminal in the measuring device information reference means. It is characterized by.

  According to a seventh aspect of the present invention, in the invention according to any one of the fourth to sixth aspects, the management device has an abnormality related to the measurement device based on the measurement device maintenance information stored in the storage unit. And / or a diagnostic mail transmitting means for transmitting warning information to a predetermined mail address by electronic mail.

  According to the present invention, in a measurement management system in which a plurality of measurement devices are connected to the same measurement object and measurement data output from the measurement device is managed by the management device, the same measurement object is Even in the case where measurement is performed by multiplex connection with the measurement device, and measurement is performed with redundancy, an abnormality of each measurement device can be detected at an early stage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. The embodiments of the present invention show the most preferable modes of the invention, and the uses and terms of the invention are not limited thereto.

  FIG. 1 is a conceptual diagram illustrating the configuration of a measurement device management system 1 according to the present invention. 2 to 4 are conceptual diagrams illustrating the measurement configuration of the measurement targets 105a, 105b, and 105c by the measurement devices 104a, 104b, and 104c. FIG. 5 is a conceptual diagram illustrating an outline of the measurement apparatus information 200. FIG. 6 is a ladder chart showing the inspection process of the measuring device management system 1. 7 to 10 are flowcharts illustrating the measurement device diagnosis process performed by the management device 102.

  First, the configuration of the measurement device management system 1 will be described. As illustrated in FIG. 1, the measurement device management system 1 includes a management device 102, measurement devices 104a, 104b, and 104c, and a terminal 106 that are communicably connected to each other via a communication network 100.

  The communication network 100 is a communication that performs communication conforming to a predetermined standard such as a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, a USB (Universal Serial Bus), and an IEEE 1394 (Institute of Electrical and Electronic Engineers 1394). It is a line and performs data communication between connected terminals. Note that this data communication may be either parallel communication or serial communication as long as it is a communication method compliant with a predetermined standard. Besides the above-described wired communication, IEEE802.11a, 802.11b, 802.11g, etc. Wireless communication such as wireless LAN or Bluetooth wireless communication, or infrared communication such as IrDA (Infrared Data Association) may be used, and there is no particular limitation.

  For communication of devices via the communication network 100, firewalls / routers 101a, 101b, and 101c that relay communication between devices in the segment and the outside such as the communication network 100, communication in the segment, and the like are relayed. It is performed by a predetermined communication protocol such as TCP / IP (Transmission Control Protocol / Internet Protocol) or UDP (User Datagram Protocol) via the hubs 103a and 103b.

  The firewalls / routers 101a, 101b, and 101c monitor the communication data in the segment and the communication data outside the segment, and block only the communication protocol set in advance or only the communication data from the network set in advance. It has a function to pass through. For this reason, for example, the firewall / router 101b related to the measurement devices 104a, 104b, and 104c allows only the communication from the network segment to which the management device 102 belongs to pass through the measurement device by the information device other than the management device 102. The configuration may prevent unauthorized management.

  The management device 102 includes a control unit that controls each unit of the management device 102 such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) (not shown), an optical A storage unit such as a magnetic storage medium or a semiconductor memory, an operation unit that receives user operation input from a keyboard or a mouse, a display unit such as a CRT (Cathode Ray Tube) or LCD (Liquid Crystal Display), a communication network 100, or an external device Information devices such as WS (Work Station) and PC (Personal Computer) having a communication interface that is communicably connected to the PC.

  The management device 102 stores various information such as measurement device information 200, measurement device maintenance information 201, measurement device diagnosis reference information 202, and user registration information 210, which will be described later, and various control programs in the storage unit described above. The management apparatus 102 reads out the various control programs by the control unit and sequentially executes them, thereby measuring apparatus configuration management means 300, measurement apparatus diagnosis means 310, diagnosis information recording means 320, maintenance report means 330, measurement apparatus information, which will be described later. Functions as a reference unit 340, an access management unit 350, a diagnostic mail transmission unit 360, and an inter-device communication IF 370 are provided.

  For example, the management device 102 communicates with the measurement devices 104a, 104b, and 104c using HTTP (HyperText Transfer Protocol) and the like, and receives a request for measurement data and the like from the measurement device and a response to the request. The management of each measuring device is performed. In communication using HTTP, SOAP (Simple Object Access Protocol), CORBA (Common Object Request Broker Architecture), or the like may be used. Furthermore, communication may be encrypted using IPSec (Security Architecture for Internet Protocol), HTTPS (Hypertext Transfer Protocol Security), or the like.

  In addition, the management apparatus 102 has a function as a Web server, that is, a function for accepting a data request from an external device via HTTP and a reply function according to the request content, and each measuring device according to a request from the external device Returns management information such as measurement data obtained from. Specifically, a URI (Uniform Resource Identifier) corresponding to each measurement device is assigned to the Web server of the management device 102, and corresponding measurement data is received in response to an external data request specifying this URI. Send back.

  The measurement devices 104a, 104b, and 104c are measurement devices that are connected to various sensors installed on the measurement targets 105a, 105b, and 105c and acquire measurement values of the various sensors. This measuring device has a control unit, a storage unit, a communication unit, and the like that are not particularly illustrated, and is configured to be able to perform data communication with an external device via the communication network 100 by the control unit controlling each unit.

  Specifically, the above-described measuring device has a function as a Web server, that is, a function for accepting a data request from an external device via HTTP and a reply function according to the request content. In the Web server of this measuring apparatus, a URI is assigned to the sensor to be connected, and the measurement value acquired from the sensor is returned as measurement data in response to an external data request specifying this URI. Note that in communication with the outside of this measuring device, communication may be encrypted using IPSec, HTTPS, or the like.

  Here, a measurement form of the measurement targets 105a, 105b, and 105c by the measurement devices 104a, 104b, and 104c will be described. As shown in FIG. 2, the measurement of each measurement target may be a duplex configuration in which the measurement device 104a and the measurement device 104b measure the measurement targets 105a and 105b. In this case, even when a sensor related to one measuring device or an interface connected to the sensor fails, another measuring device can back up. Note that the measurement data from which measurement device is used as the measurement target data is set in the measurement device information 200 and the measurement device maintenance information 201 in the management device 102 described later.

  In addition, as shown in FIG. 2, the measurement target 104 is configured such that the measurement device 104c measures the measurement target 105c with a plurality of sensors, that is, one measurement device measures the same measurement target with a plurality of sensors. May be. In this case, it is not necessary to provide a plurality of measuring devices, and it is possible to perform backup such as failure of any sensor in the measurement target or an interface connecting the sensor and the measuring device.

  Further, as shown in FIG. 3, the measurement of each measurement target may be a multiplexed configuration in which the measurement devices 104a, 104b, and 104c measure the measurement targets 105a, 105b, and 105c. In this case, it is possible to perform measurement more redundant than the above-described duplex configuration with respect to a sensor installed on a measurement target, an interface connected to the sensor, a failure of the measurement device, and the like.

  Further, as shown in FIG. 4, the measurement target 105b may be a mediation standard medium that outputs a measurement value for comparing a measurement value in another measurement target and using it as a reference for diagnosis. The standard measurement value output in the measurement target 105b is performed by performing measurement under a preliminarily adjusted environment or adjusting so that a predetermined measurement value is always output in advance. In the measuring apparatus management system 1, the validity of the measurement data of the measuring apparatuses 104a, 104b, and 104c can be determined and calibrated by comparing the measurement object 105b with the measurement values acquired from other measurement objects. .

  Returning to FIG. 1, the description of the measuring device management system 1 will be continued. The terminal 106 is a control unit that controls each part of the terminal 106 such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) (not shown), and an optical / magnetic unit that stores various data. A PC having a storage unit such as a storage medium or a semiconductor memory, an operation unit that receives a user's operation input from a keyboard or mouse, a display unit such as a CRT or LCD, and a communication interface that is communicably connected to the communication network 100 or an external device. And information devices such as PDA (Personal Digital Assistants).

  The terminal 106 has a function as a Web browser, and by specifying a URI to access the Web server of the management apparatus 102 in response to an operation instruction from a user such as a maintenance staff or an operation manager, the management apparatus 102 Information and measurement data related to the managed measurement devices 104a, 104b, and 104c are displayed in a browser. Further, the terminal 106 may have a function as a mailer that transmits and receives electronic mail.

  Next, the measurement device information 200, the measurement device maintenance information 201, the measurement device diagnosis reference information 202, and the user registration information 210 stored in the management device 102 will be described in detail.

  The measurement device information 200 is information related to a measurement device that is a management target of the management device 102, and stores unique information of the measurement device, information indicating a management state, and the like. The specific information of the measuring device is information such as a history necessary for maintenance after installation as well as specifying the measuring device. Specifically, as information for each measuring device, device management ID, vendor information, product model number Serial number, name, installation information, customization information, last recording date, remarks, scheduled maintenance date, final calibration date, initial shipping date, etc. are stored.

  As shown in FIG. 5, the information indicating the management state in the measurement device information 200 indicates the correspondence between the measurement devices 104a, 104b, 104c managed by the management device 102 and the sensors installed in the measurement targets 105a, 105b, 105c. The configuration definition to show. Specifically, the configuration of the sensor connected to the measurement device, the information about the URI for acquiring the measurement value from the sensor, the information about the priority of the measurement data acquired from each sensor, the sensor installed in the measurement target Information.

  The management apparatus 102 collects measurement data from the measurement target in the measurement configuration (see FIGS. 2 to 4) of the above-described duplexed or multiplexed measurement apparatus based on the information indicating the management state of the measurement apparatus information 200. It can be performed.

  The measurement device maintenance information 201 stores a maintenance history such as a result and a repair record when a measurement device to be managed is diagnosed by diagnostic processing described later. Specifically, the date and time when the record was updated, the date and time when the abnormality occurred, the device management ID, the occurrence status, the subject, the content, the correspondence, the corresponding date, the management number, and the like.

  The measurement apparatus diagnosis reference information 202 is information necessary for diagnosis and maintenance of the measurement apparatus, such as a threshold value of a measurement value used as a reference at the time of diagnosis of the measurement apparatus and characteristic information (including accuracy information) of the measurement apparatus.

  The user registration information 210 is table information regarding users who can access (log in) the management apparatus 102 and their authority. Specifically, it is information such as a login ID, password, access authority, and contact information.

  Next, the measurement device configuration management means 300, the measurement device diagnosis means 310, the diagnosis information recording means 320, and the maintenance report means 330 realized by the control unit of the management apparatus 102 executing various control programs stored in the storage unit or the like. The measuring device information reference unit 340, the access management unit 350, and the diagnostic mail transmission unit 360 will be described in detail.

  The measurement device configuration management unit 300 updates the measurement device information 200, the measurement device diagnosis reference information 202, and the like by receiving an instruction input from the operation unit or the like and displaying a screen on the display unit. Register and update such information. Specifically, it is possible to register a measurement device, update settings, and specify a scheduled maintenance date and a maintenance date for the measurement device.

  The measurement device diagnosis unit 310 performs a diagnosis process to be described later on each measurement device based on the measurement device information 200 and the measurement device diagnosis reference information 202, and each measurement device, sensor, and the like when multiplexing and measuring the measurement target Diagnose whether or not is normal.

  The diagnostic information recording unit 320 records the result diagnosed by the above-described measuring device diagnostic unit 310 in the measuring device maintenance information 201. The diagnostic information recording means 320 may record the measurement device maintenance information 201 as a history of diagnostic results. In this case, it is possible to sequentially check the diagnosis results of past measurement devices. In addition, the diagnostic results for each measuring device may be recorded by itemizing. In this case, the diagnostic result for each measuring device can be easily confirmed.

  The maintenance report unit 330 displays a report based on the information of the diagnosis result of each measuring device recorded in the measuring device maintenance information 201 or the like on a display unit or the like. Specifically, a list of measurement devices in which alerts or failures are registered by diagnosis is displayed.

  The measurement device information reference unit 340 returns information corresponding to a measurement device status or measurement data reference request from an information device connected via communication, that is, the terminal 106 connected via the communication network 100. Specifically, the measurement device information reference unit 340 is a Web server or the like, and is obtained using the measurement device diagnosis unit 310, the diagnosis information recording unit 320, and the maintenance report unit 330 described above using CGI (Common Gateway Interface) or the like. The various data is output as Web page data to the information device that is the access source.

  The access management unit 350 performs login authentication to the management apparatus 102 based on the user registration information 210 and restricts the function of the management apparatus 102 only for a user (account) permitted in advance. Specifically, when the user is an administrator, permission to add or change the measuring device managed by the management device 102 by the measuring device configuration management unit 300, or a maintenance report when the user is a maintenance person Permits the addition of repair information by referring to the maintenance information of the measurement device by means 330 or editing the measurement device maintenance information 201, and permits only acquisition of measurement data if the user is a general user. . The access restriction by the access management unit 350 is similarly performed for the access from the terminal 106 by the measurement device information reference unit 340 described above.

  The diagnostic mail transmission unit 360 has a function of transmitting a diagnostic result related to the measurement device by e-mail. Specifically, the report created by the above-described maintenance report unit 330 or the like is stored in the user registration information 210 or the like in advance as a text. Send an e-mail to the set user's e-mail address. Thereby, for example, in an information terminal such as the terminal 106 that can receive an e-mail, a diagnosis result related to the measuring device can be confirmed by the e-mail.

  The inter-device communication IF 370 is a communication interface that is connected to the measurement device 104a via the serial / parallel communication or the like so that data communication can be performed without using the communication network 100. The management apparatus 102 may be configured to be communicably connected to the measurement apparatus by a dedicated line or the like that does not go through the communication network 100 by the inter-apparatus communication IF 370 or the like.

  Next, the measurement performance diagnosis process in the measurement apparatus management system 1 will be described in detail. As shown in FIG. 6, an instruction from a user and confirmation of management information in the measurement apparatus management system 1 are performed by logging in to the account of the management apparatus 102 from the terminal 106.

  In the measurement device management system 1, a scenario for diagnosing a measurement device related to each measurement target (two-unit configuration, three-unit configuration, whether to use a mediation standard medium, etc.) from the terminal 106 after logging in to the management device 102 Request for information on maintenance setting information), an instruction of a scenario for diagnosing the measuring device, a request for a diagnostic record regarding the selected measuring device, and the like.

  The management apparatus 102 returns the scenario information requested from the terminal 106 and the diagnostic record of the measurement apparatus that has been requested from the measurement apparatus maintenance information 201 and returns the same. In addition, the management apparatus 102 requests measurement data from the measurement apparatuses 104a, 104b, and 104c according to the diagnosis scenario of the measurement apparatus instructed from the terminal 106 or the like, and performs measurement apparatus diagnosis processing described later.

  Here, a measurement device determination process that is sequentially executed by the control unit of the management device 102 will be described.

  When the measurement device related to the measurement object has a duplex configuration (see FIG. 2), as shown in FIG. 7, measurement data is acquired from the two measurement devices (step S11), and both measurement data are measured by the measurement device diagnosis. Based on a threshold value serving as a reference stored in the reference information 202, it is determined whether or not it is in a normal region (step S12).

  If both measurement data are in the normal region in step S12, it is determined whether or not the measurement data are equal within the accuracy range of the measurement device (step S13). If equal, information indicating that the measuring device is normal is output and stored in the measuring device maintenance information 201 as a normal state indicating that the measuring device related to the measurement is normal, and based on the measuring device information 200 The measurement data related to the measurement device with a high priority is output as the measurement result (step S14), and the process ends.

  If it is determined in step S13 that the two measurement data are not equal within the accuracy range, the alarm state indicating that the measurement accuracy of the measurement device is reduced indicates that both measurement devices are in the alarm state. The information shown is output and stored in the measurement device maintenance information 201, and the measurement data related to the measurement device having a high priority is output as the measurement result (step S15), and the process ends.

  If it is determined in step S12 that both measurement data are not in the normal area, it is determined whether one measurement data is in the normal area (step S16). When it is determined that one measurement data is in the normal area, the measurement apparatus related to the measurement data in the normal area is in an alarm state as a semi-failure state in which the measurement apparatus related to the measurement data not in the normal area is in failure. Information indicating that the measurement device having no measurement data in the normal region is in a failure state is output and stored in the measurement device maintenance information 201, and measurement data in the normal region is output as a measurement result (step S17), and the process ends.

  If one measurement data is not in the normal region in step S16, that is, if both measurement data are abnormal, all the measurement devices related to the measurement target are in a failure state, and all the measurement devices are in a failure state. Information is output and stored in the measurement device maintenance information 201, and data indicating that the measurement result is an error is output (step S18), and the process ends.

  In the case of a multiplexed (triple) configuration (see FIG. 3), as shown in FIG. 8, the configuration of the measurement device corresponding to the measurement target to be diagnosed designated by the operation unit of the terminal 106 or the management device 102 or the like. The definition is read from the measuring device information 200 (step S21), and based on the configuration definition, measurement is performed by all the measuring devices related to the specified measurement target (steps S22 and S23).

  Next, it is determined whether or not all the measurement data are in the normal region (step S24). If the measurement data is in the normal region, it is determined whether or not all the measurement data are equal within the accuracy range of the measuring device. (Step S25). If it is determined in step S25 that the measurement devices are equal, it is assumed that all measurement devices related to the measurement target are normal, and information indicating that each measurement device is normal is output and stored in the measurement device maintenance information 201. Based on the device information 200, measurement data relating to a measurement device with a high priority is output as a measurement result (step S26), and the process ends.

  When it is determined in step S25 that all the measurement data are not equal within the accuracy range, it is determined whether any two measurement data match within the accuracy (step S27). If it is determined in step S27 that they match, the measurement device related to the matching measurement data is normal as a semi-normal state that is a part of the multiplexed configuration and indicates that any two measurement devices are normal. Yes, information indicating that the other measurement device is in an alarm state with reduced measurement accuracy is output and stored in the measurement device maintenance information 201, and the measurement device having the highest priority among the matching measurement data The measurement data is output as a measurement result (step S28), and the process ends.

  If it is determined in step S27 that they do not match, the information indicating that all the measuring devices are in an alarm state and all the measuring devices are in an alarm state is output and stored in the measuring device maintenance information 201, and has priority. Measurement data relating to a high-precision measuring device is output as a measurement result (step S29), and the process ends.

  If it is determined in step S24 that all the measurement data are not in the normal area, it is determined whether any two measurement data are in the normal area (step S30). If it is determined in step S30 that there are two measurement data in the normal region, it is determined whether the two measurement data match within accuracy (step S31). If it is determined in step S31 that they match, the process of step S28 described above is performed. If it is determined that they do not match, the alarm state in which normal / failure is unknown is set, and the measurement device related to the measurement data in the normal area is alarmed. Information indicating that the other measurement device is in a failure state is output and stored in the measurement device maintenance information 201, and the measurement data related to the measurement device having a higher priority among the measurement data in the normal region is the measurement result. Is output (step S32), and the process ends.

  If it is determined in step S30 that there is no two measurement data in the normal area, it is determined whether any one measurement data is in the normal area (step S33). If it is determined in step S33 that there is one measurement data in the normal region, the semi-failure state indicates that the measurement device related to the measurement data in the normal region is in an alarm state, and information that other measurement devices are in failure The data is output and stored in the measurement device maintenance information 201, and the measurement data of the normal region is output as the measurement result (step S34), and the process is terminated.

  If any one of the measurement data is not in the normal region in step S33, that is, if all the measurement data is abnormal, information indicating that all the measurement devices related to the measurement target are in the failure state is output as the failure state. The data stored in the measurement device maintenance information 201 and data indicating that the measurement result is an error are output (step S35), and the process ends.

  In the case of a configuration that uses the measurement value of the mediation standard medium when measuring the measurement target (see FIG. 4), as shown in FIG. 9, a diagnosis designated by the operation unit of the terminal 106 or the management apparatus 102 is performed. The configuration definition of the measurement device corresponding to the measurement target to be performed is read (step S41), the measurement data of the mediation standard medium related to the measurement device is acquired (step S42), and specified based on the read configuration definition Measurements are sequentially performed by the measurement device related to the measurement target (step S43).

  Next, the measurement data of the mediation standard medium and the measurement data of the measurement target in the measurement apparatus measured in step S43 are compared, and it is determined whether or not the measurement target measurement data is normal (step S44). If it is normal, information indicating that the measurement device is normal is output and stored in the measurement device maintenance information 201, and measurement data is output as a measurement result (step S45). If it is determined in step S44 that the measurement accuracy is not normal, information indicating an alarm state indicating that the measurement accuracy of the measurement device is degraded is output and stored in the measurement device maintenance information 201 and measured as a measurement result. Data is output (step S46).

  Next, it is determined whether or not the measurement has been completed for all measurement devices related to the measurement target (step S47). If the measurement has not been completed, the process returns to step S43. If the measurement has been completed, the process is terminated. .

  As shown in FIG. 10, the measurement device related to the measurement object has a duplex or multiplexed configuration and uses a low-priority measurement device as a backup, as shown in FIG. The configuration definition of the measurement device corresponding to the measurement target for performing the specified diagnosis is read from the measurement device information 200 (step S51). Based on the configuration definition, the measurement device is a measurement device related to the measurement target and has a high priority. The measurement object is measured by the measuring device (step S52), and it is determined whether or not the measurement data is in the normal region (step S53). If it is determined in step S53 that the measurement data is in the normal region, information indicating that the measurement device is normal is output as a normal state and stored in the measurement device maintenance information 201, and the measurement data is used as a measurement result. It is output (step S54), and the process ends.

  When it is determined in step S53 that the measurement data in the high priority measurement device is not in the normal region, the measurement target is measured by the measurement device that is a measurement target and has a low priority (step S55). It is determined whether or not the measurement data is in a normal area (step S56).

  If it is determined in step S56 that it is in the normal region, information indicating that the measuring device with the higher priority is in the failure state and the measuring device with the lower priority is in the normal state is output as the alarm state, and the measuring device maintenance information is output. In addition to being stored in 201, measurement data of a measurement device with a low priority is output as a measurement result (step S57), and the process ends.

  If it is determined in step S56 that it is not in the normal area, information indicating that all measurement devices are in a failure state is output and stored in the measurement device maintenance information 201 as a failure state, and the measurement result is an error. Is output (step S58), and the process ends.

  As described above, the measurement apparatus management system 1 measures the same measurement object among the measurement objects 105a to 105c by the measurement apparatuses 104a to 104c, and the management apparatus 102 determines the measurement object based on the measurement apparatus diagnosis reference information 202. Whether or not each of the measurement data is in the normal region is diagnosed by the measurement device diagnosis unit 310, and when any measurement data is not in the normal region, the measurement device related to the measurement data not in the normal region is abnormal. It is the structure which outputs the information which shows that.

  For this reason, the measurement device management system 1 is a case where the same measurement target is measured by connecting multiple measurement devices in a multiple connection, and measurement is performed with redundancy, and there is a measurement device that operates normally. Even when the measurement data when measured is output normally, it is possible to detect an abnormality of each measuring device at an early stage.

  In addition, the measurement device management system 1 determines the failure state when all measurement data is not in the normal region when the measurement device diagnosis unit 310 of the management device 102 diagnoses the measurement device related to the same measurement target. Outputs information indicating that all the measuring devices shown are out of order. Therefore, the measurement device management system 1 can accurately grasp the state when all of the measurement devices that are multiplexed and measured are abnormal.

  In addition, the measurement device management system 1 is configured so that the measurement data between the measurement devices can be obtained when the measurement device diagnosis unit 310 of the management device 102 diagnoses the measurement device related to the same measurement target and all the measurement data is in the normal region. If they are not substantially the same, information indicating an alarm state in which the measurement accuracy of the measuring device is reduced is output. For this reason, the measurement device management system 1 can accurately grasp the abnormal stage to the extent that the measurement device causes an error.

  In addition, the measurement device management system 1 stores information output by the measurement device diagnosis unit 310 in the measurement device maintenance information 201, and based on the measurement device maintenance information 201, lists measurement devices in which alerts or failures are registered. It is configured to have maintenance report means 330 that is uploaded and displayed on a display unit or the like. For this reason, the measurement device management system 1 can accurately notify the user such as a maintenance worker of the state of the measurement device, and can assist the maintenance worker in formulating a maintenance plan.

  Also, the management device 102 of the measurement device management system 1 refers to measurement device information that outputs information related to the measurement device in response to a request from the terminal 106 that is communicably connected to the management device 102 via the communication network 100. This is a configuration including means 340. For this reason, the measurement device management system 1 can also confirm information related to the measurement device from the terminal 106 connected from a remote location via the communication network 100.

  Further, the management device 102 of the measurement device management system 1 refers to the maintenance information of the measurement device and the repair information by the maintenance report means 330 and the measurement device information reference means 340 only for the users set in the user registration information 210 in advance. The access management means 350 for restricting access such as additional permission is provided. For this reason, the measurement device management system 1 can restrict viewing of the maintenance information of the measurement device and the like for an unauthorized user, that is, an unintended person, thereby improving security.

  Further, the management device 102 of the measurement device management system 1 sends the information related to the alarm state or failure state of the measurement device stored in the measurement device maintenance information 201 to the user's e-mail address set in the user registration information 210 or the like. It is the structure provided with the diagnostic mail transmission means 360 which transmits an email. For this reason, the measuring device management system 1 can confirm information related to the measuring device also from an information terminal capable of receiving electronic mail.

  Note that the description in the present embodiment shows an example of the present invention, and the present invention is not limited to this. The detailed configuration and operation of the measurement device management system 1 according to the present invention can be changed as appropriate without departing from the spirit of the present invention.

  For example, the number of measurement devices, the number of measurement objects, the connection layout, and the like are in accordance with the plant to be managed, and are not particularly limited to the above-described embodiments.

  In addition, the data communication between the devices in the present embodiment has been mainly described with the configuration in which the Web server provided by each device is accessed using HTTP, but the configuration is such as an FTP (File Transfer Protocol) or an FTP server. There is no particular limitation.

It is a conceptual diagram which illustrates the structure of the measuring device management system 1 which is this invention. It is a conceptual diagram which illustrates the measurement structure of measurement object 105a, 105b, 105c by measuring device 104a, 104b, 104c. It is a conceptual diagram which illustrates the measurement structure of measurement object 105a, 105b, 105c by measuring device 104a, 104b, 104c. It is a conceptual diagram which illustrates the measurement structure of measurement object 105a, 105b, 105c by measuring device 104a, 104b, 104c. 3 is a conceptual diagram illustrating an overview of information indicating a management state in measurement device information 200. FIG. 3 is a ladder chart showing a diagnostic process of a measurement device in the measurement device management system 1. It is a flowchart which shows the measuring device diagnostic process which the management apparatus 102 performs. It is a flowchart which shows the measuring device diagnostic process which the management apparatus 102 performs. It is a flowchart which shows the measuring device diagnostic process which the management apparatus 102 performs. It is a flowchart which shows the measuring device diagnostic process which the management apparatus 102 performs.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Measurement apparatus management system 100 Communication network 101a, 101b, 101c Firewall / router 102 Management apparatus 200 Measurement apparatus information 201 Measurement apparatus maintenance information 202 Measurement apparatus diagnosis reference information 210 User registration information 300 Measurement apparatus configuration management means 310 Measurement apparatus diagnosis Means 320 Diagnostic information recording means 330 Maintenance report means 340 Measuring device information reference means 350 Access management means 360 Diagnostic mail sending means 103a, 103b Hubs 104a, 104b, 104c Measuring devices 105a, 105b, 105c Measurement target 106 Terminal 370 Inter-device communication IF

Claims (7)

In a measurement management system in which a plurality of measurement devices are connected to the same measurement target and measurement data output from the measurement device is managed by a management device,
The management device
When the reference data stored in advance in the storage means is compared with each of the measurement data acquired by a plurality of measurement devices connected to the same measurement object, if any one of the measurement data is not normal data, either A measuring device management system comprising measuring device diagnosis means for outputting information indicating that a measuring device related to one measurement data is abnormal. The measuring device diagnostic means of the management device is
The reference data stored in advance in the storage means is compared with each of the measurement data acquired by a plurality of measurement devices connected to the same measurement object, and if all the measurement data is not normal, all the measurement data The measurement device management system according to claim 1, wherein information indicating that the measurement device is abnormal is output. The measuring device diagnostic means of the management device is
Compare the reference data stored in advance in the storage means with each of the measurement data acquired by a plurality of measurement devices connected to the same measurement object, and if all the measurement data is normal, compare the measurement data with each other The measurement device management system according to claim 1, wherein warning information is output when the measurement data are not substantially identical. The management device
Diagnostic information recording means for storing information output by the measurement device diagnosis means in storage means as measurement device maintenance information;
Maintenance report means for displaying abnormality and / or warning information related to the measurement device on the display means based on the measurement device maintenance information stored in the storage means;
The measuring device management system according to claim 1, further comprising: The management device
5. The apparatus according to claim 1, further comprising a measurement device information reference unit that outputs information related to the measurement device to the terminal in response to a request from a terminal that is communicably connected to the management device. The measuring device management system according to one item. The management device
Based on the user registration information stored in the storage means, log-in authentication is performed, and only the users who are preset in the user registration information among the logged-in users are manually informed of the maintenance report means. 6. The measuring device management system according to claim 4, further comprising access management means for accepting a display from the terminal and / or a request from a terminal in the measuring device information reference means. The management device
The apparatus further comprises diagnostic mail transmission means for transmitting abnormality and / or warning information related to the measurement apparatus to a predetermined mail address by e-mail based on the measurement apparatus maintenance information stored in the storage means. The measuring device management system according to any one of claims 4 to 6.

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