JP2010061262A - Inspection method using rfid - Google Patents

Abstract

An inspection error that is visually read is written in a portable information terminal and in an RFID so as not to cause a device error.
An RFID tag attached to a device to be inspected, a portable information terminal capable of transmitting and receiving data between the RFID tag in a non-contact manner, and a management information capable of accumulating inspection data of the portable information terminal This is a patrol inspection method using the PC 16. Device specific information and past information are stored in the RFID, and when the portable information terminal reads the RFID data, an inspection value input screen corresponding to the device appears, and the stored device data Is displayed, and the inspection value of the device read visually can be input from the inspection value input screen. When the input value is written in the portable information terminal as the inspection value, the RFID also matches the specific information of the device. And write it as the latest inspection value.
[Selection] Figure 1

Description

  The present invention relates to a method of performing inspection inspection of a large number of devices using information of RFID (Radio Frequency Identification) attached to the device, and more specifically, reading RFID data with a portable information terminal and corresponding to the device. The inspection value input screen is displayed on the portable information terminal, and when the inspection value is input from the screen and written to the portable information terminal, the device is confirmed on the RFID and the inspection value is written easily. The present invention relates to a patrol inspection method using RFID that can perform inspection value input work and prevent erroneous writing to RFID.

  For safety management of nuclear facilities, etc., many devices (for example, various machines, electrical devices, measuring instruments, etc.) are inspected on a daily basis, and the inspection history (inspector, inspection date, inspection value, etc.) is recorded and recorded. It is necessary to save it. In the past, it was common for an inspection operator to write inspection values of each device on an inspection data sheet. However, in paper-based data management, there is a risk of entry errors, transcription errors, etc., and it is difficult to prevent the occurrence of inspection omissions.

  As an alternative to paper-based data management, an inspection history management apparatus using RFID has recently been proposed (see, for example, Patent Document 1). This is configured to receive inspection history information (inspection date) read from the RFID tag together with identification information for identifying the inspection target device, and store the inspection history information in association with each identification information. is there. In terms of the system, an RFID tag is attached to a device to be inspected, and RFID information read by a reader installed in the vicinity of the device is transmitted to the device management terminal. The RFID inspection history information (inspection date) is rewritten. As data to be stored in the RFID, identification information (device ID), format, use start date, inspection date, and the like are assumed.

  This technology is useful for applications that require periodic inspections and replacements at a specific period for each device type when the interval of inspection time is long and the number of devices to be inspected is relatively small, such as device maintenance. is there. However, there is no consideration for applications in which a large number of devices are inspected on a daily basis and the inspection history (not only the inspection date but also the inspection values read visually) is recorded and stored.

JP 2007-26128 A

  The problem to be solved by the present invention is that an inspection value read visually for an arbitrary inspection target device is written in a portable information terminal in association with the specific information of the device, and the inspection value is attached to the device. When writing to an RFID, it is possible to prevent mistakes such as writing to another device or writing to another RFID, and prevent inspection mistakes when checking many devices on a daily basis. The history (not only the inspection date and time but also the inspection values read visually) can be recorded and stored accurately and easily as electronic data. Another problem to be solved by the present invention is to prevent forgetting to inspect (inspection omission) of a device when a large number of devices are inspected daily. Still another problem to be solved by the present invention is to assist in determining whether or not the inspection value is appropriate at the inspection site when inputting the inspection value to the portable information terminal. .

  The present invention relates to an RFID tag attached to each of a plurality of devices to be inspected, a portable information terminal capable of transmitting and receiving data between the RFID tag in a non-contact manner, and accumulation of inspection data of the portable information terminal In the RFID, the past information including at least the specific information of the device to which the RFID tag is attached and the inspection value is stored in the RFID. When the data is read, an inspection value input screen corresponding to the device to which the RFID tag is attached appears, the stored data of the device is displayed, and the inspection value of the device read visually is displayed. It is possible to input from the inspection value input screen, and when writing the input value to the portable information terminal as the inspection value, the RFID also matches the specific information of the device and the latest inspection value To be written Te, after patrol inspection, a patrol inspection method according to RFID, characterized in that storing inspection data of the mobile information terminal in the database of the management PC.

  Preferably, the portable information terminal updates and displays the number of inspected items and the number of uninspected items at the time of inspection, and lists of devices to be inspected and whether each device has been inspected and not inspected. A list of situations is displayed on the screen, and a warning is issued when patrol is ended and used despite the number of uninspected cases. In addition, when the portable information terminal reads the RFID data during a patrol inspection, an inspection value input screen corresponding to the device appears, and past information including the specific information of the device and the inspection value is displayed. In addition, a management value indicating an appropriate range of the inspection value of the device is displayed on the screen, and a warning is issued when the input inspection value deviates from the management value. Furthermore, if the calibration information of the device to which the RFID is attached is stored in the RFID, when the RFID data is read by the portable information terminal during inspection, it is stored in the internal clock and RFID of the portable information terminal. When the calibration dates of the stored devices are compared and the calibration expiration date approaches, it is possible to display on the screen of the portable information terminal that the device needs to be recalibrated.

  In the inspection inspection method using RFID according to the present invention, when the portable information terminal reads the RFID data, the inspection value input screen corresponding to the device to which the RFID tag is attached appears and is stored. Data is displayed, and the inspection value of the device read visually can be input from the inspection value input screen, and when the input value is written in the portable information terminal as the inspection value, the RFID also specifies the specific information of the device. It is configured to check and write as the latest inspection value, so it is possible to prevent mistakes such as writing corresponding to another device or writing to another RFID, and inspection of many devices on a daily basis Equipment mistakes can be avoided. Also, by directly inputting the inspection value to the portable information terminal, unlike the paper-based inspection data recording, the inspection value can be input efficiently and quickly. After inspection inspection, the inspection data of the portable information terminal is stored in the management PC database. Therefore, the inspection history (not only the inspection date and time but also the inspection values read visually) can be recorded and stored accurately and easily as electronic data.

  Further, according to the present invention, the portable information terminal updates and displays the number of inspected items and the number of uninspected items at the time of inspection, and checks the list of devices to be inspected and inspection of each device. A list of completed and uninspected statuses is displayed on the screen, and a warning is issued when the inspection is terminated and used despite the number of uninspected items. It can be prevented, and inspection inspection can be performed efficiently.

  Further, according to the present invention, when the portable information terminal reads the RFID data during the patrol inspection, the inspection value input screen corresponding to the device appears, and the past includes the specific information and the inspection value of the device. Is displayed on the screen, and a management value indicating the appropriate range of the inspection value for the device is displayed on the screen, and a warning is issued if the entered inspection value deviates from the management value. It is possible to assist the judgment of the validity of the inspection value whether or not the inspection value to be tried is within an appropriate range. This is also useful for preventing input mistakes (reconfirmation of inspection values).

  FIG. 1 is a system configuration diagram for carrying out the method of the present invention. This system includes an RFID tag 12 attached to a device (field instrument) 10 to be inspected, a portable information terminal 14 capable of transmitting / receiving data to / from the RFID tag 12, and inspection data of the portable information terminal 14 Is used with a management PC 16 capable of storing In FIG. 1, only one device 10 to be inspected is illustrated, but actually, there are a large number of devices to be inspected, and RFID tags are attached to each of the devices. The portable information terminal 14 is battery-driven and can be carried at any inspection site. Of course, the built-in program and necessary information processing can be performed, and the data reading function (reader function) from the RFID and the data writing to the RFID are possible. It has a function (writer function), a synchronous connection function with a management PC, and the like. Data is transmitted and received between the RFID tag 12 and the portable information terminal 14 by non-contact reading / writing using wireless or the like. In addition, data can be synchronized between the portable information terminal 14 and the management PC 16 at an arbitrary time after the patrol inspection is completed, and data is transferred in a CSV file format or the like. Various data stored in the database of the management PC 16 can be output to, for example, a LAN-connected printer 18 as necessary.

  The RFID tag 12 attached to the device 10 to be inspected stores the specific information of the device and the inspection value. If the storage capacity of the RFID is large, as shown in FIG. 2, the management value (range that the inspection value of the device should be in: a reference value), past information (history of inspection values over the past several times), and other information are stored. You can also let them. When the portable information terminal 14 reads the RFID data, an inspection value input screen corresponding to the device appears, and the stored data of the device is displayed. This is one of the features of the present invention. Here, the data of the device includes the device name that is device specific information, the upper and lower limits of the management value (reference value), the previous inspection value, the previous inspection value, the previous inspection value, etc. as past information. . The inspection value read visually is entered in the inspection value input field provided on the inspection value input screen. When writing the input value, the check value is also written to the RFID against the specific information of the device to prevent incorrect writing to the RFID, and the correspondence information between the device and the check value is incorrect in the portable information terminal. Preventing the occurrence of In this way, a large number of devices to be inspected are inspected and the inspection values are written in the portable information terminal and the latest inspection values are written in the corresponding RFID. It should be noted that if the device to be inspected and the updated value of the number of inspections are always displayed on the screen of the portable information terminal, forgetting to inspect can be prevented.

  After the patrol inspection, the data of the portable information terminal is stored in the management PC database. If necessary, the data (inspector, inspection value, etc.) of the portable information terminal is reset in preparation for the next inspection. The management PC can process and print out the contents of the stored database as necessary.

  Here, calibration information of the device to which the RFID is attached is also stored in the RFID, and when the RFID data is read by the portable information terminal during inspection, the internal clock of the portable information terminal and the RFID It is preferable to display the fact that the device needs to be recalibrated on the screen of the portable information terminal when the calibration expiration date of the device stored in is compared and the calibration expiration date approaches. At nuclear facilities, in order to maintain and manage the facilities more safely, periodic calibration of instruments is required for in-house quality assurance. Conventionally, it has been general to manage by pasting a seal or the like indicating the next calibration date on the device, but since there are many objects to be managed, this management is not easy. With the above configuration, when a deadline that requires recalibration is approaching, a warning message is displayed in front of the device indicating that this device needs to be recalibrated. . Even if the warning is ignored, calibration is urged every inspection inspection, so there is no need to forget recalibration.

  In the basic configuration described above, forgetting to check is prevented by displaying the number of inspected items and the number of uninspected items. However, it is also useful to add a guidance function so that an inspector who is not familiar with the inspection location can carry out the inspection smoothly. As this guidance function, for example, when the RFID attached to the room to be inspected is read, the plan view of the room and the inspection location are displayed on the screen of the portable information terminal, or when the inspection is forgotten, There is a function to display the details of where you forgot to check on a map. By adding such a guidance function, even an inspector who is not accustomed to the inspection location can complete a predetermined patrol inspection without hesitation.

  FIG. 3 is an explanatory diagram showing an embodiment of the method of the present invention, and shows the screen configuration of the portable information terminal. The mobile information terminal selectively displays one of three screens, a login screen, a category / equipment screen, and an inspection value input screen, for various inspections. Operation is possible.

The operation flow from the login screen is as follows.
(1) The inspector selects his / her name through [Select Inspector], selects the number of working times from [Working Time], and also selects [Patrol Inspection Sheet] and [Management Area]. Click the [Start] button to move to the next screen. Note that a password is not particularly required when inputting inspection information. However, when performing operations on items important for system management, it is necessary to input a password from the viewpoint of system protection. At the same time, the following confirmation is performed.
(A) Check whether the previous inspection data is stored in the management PC. In order to prevent overwriting of the inspection data, if the previous inspection data is not stored in the management PC, it cannot proceed.
(B) Confirmation when working times are not in order. If it doesn't have to be in order, go ahead.
(C) Confirmation when the turn is skipped. If it doesn't have to be in order, go ahead.
(2) When the [End Process] button is clicked, it is confirmed whether there is any unprocessed data. Further, when the [Data synchronization] button is clicked, the inspection data of the portable information terminal is cleared after the management PC and the CSV data are synchronized.

The flow of operations from the category and device screen is as follows.
(1) The inspector selects the category to be inspected by [Category selection]. This classification is a group consisting of a plurality of related devices such as a room in which a device to be inspected exists, a system including the device to be inspected, and the like. Regardless of [Category selection], [Inspection status] displays the status of all devices in the [Inspection inspection sheet] and [Management area]. The management area refers to, for example, a radiation management area.
(2) [Device Name List] displays the device name, inspection status, and value range check status of the category selected in [Category Selection]. Note that the check status is marked in advance with [O] etc. if the device is not checked due to the setting of the check frequency.
(3) Select the device to be inspected from the [Device Name List] or move the portable information terminal closer to the RFID tag and press the [Trigger Key] to move to the next screen.
(4) When all the inspections are completed, the process returns to the login screen by the [Exit Inspection] button and the process is terminated.

The operation flow from the inspection value input screen is as follows.
(1) When a transition is made from the category or device selection, the [previous inspection value] of the RFID tag is displayed from the beginning. At the same time, [control value (reference value)] and [calibration date] are also read from the CSV file and displayed.
(2) The inspector visually reads the inspection data and inputs it as [inspection value]. The inspector writes the inspection value, the inspection date, and the inspection time by bringing the portable information terminal close to the RFID tag and pressing the [Enter] button. At that time, if the inspection value deviates from the control value (reference value), an alarm is issued and a warning is displayed on the screen, and writing is interrupted. If the inspection value is acceptable, it is written by pressing the [Enter] button again. When the inspection value cannot be measured due to equipment failure or the like, “9999” is input when inputting a numerical value, and “inspection impossible” is selected when selecting.
(3) When the inspection of one device is completed, it automatically returns to the category and device screen. When the inspector brings the portable information terminal close to the RFID tag of the next device and presses the [trigger key], the data of the device is displayed.
(4) When an inspector with general authority tries to inspect a device that has been deleted on the management PC, it is displayed on the screen that the device should be deleted, and it is checked that it cannot be checked. Inform the person.

  FIG. 4 is an explanatory diagram summarizing the transition status of each screen. Start the process on the login screen and select the device on the category and device selection screen. Then, an inspection value input screen appears and data is read from the RFID. Therefore, the inspection value is input. The inspection value is written in the RFID, and the screen returns to the category and device selection screen. When the next device is selected, the screen changes to the inspection value input screen again. When there are no more devices to be checked, the login screen is displayed when the check is completed. If category selection is selected without entering the inspection value on the inspection value input screen, the screen returns to the category and device selection screen.

  FIG. 5 shows a list of inspection inspection functions implemented by the portable information terminal in the method of the present invention. The inspection inspection function performs login processing for each inspector (the inspector and inspection times are recorded), and performs logoff processing at the end of inspection. There are two types of inspectors, an inspector with general authority and an administrator, and the administrator needs to input a password. The name of the inspector is registered in advance on the management PC. The main control function is a function for performing main control such as function switching on the top screen of the portable information terminal.

1. Classification selection processing function:
The category name imported from the management PC can be selected.
2. Device selection processing function:
After the category selection process, the device name for each category is fetched from the management PC and displayed. In addition, the inspection status for each device is displayed. The inspection status is displayed by dividing the inspected and uninspected equipment by symbols (inspection omission check processing function). In addition, devices that are out of the range of the control value (reference value) are also displayed with symbols. When the guidance function is added, the instructor is specifically instructed by using a map (plan view of the room) which device is forgotten to check.
3. Inspection value input processing function:
For each device, an inspection value input screen corresponding to the device is displayed. In the inspection value input screen, the management value (reference value) and the calibration date for each device imported from the management PC are displayed here. The previous inspection value is read from the RFID tag and displayed. The latest inspection value and inspection date are written in the RFID tag. The contents held by the RFID tag are (tag number, inspection date, inspection time, inspection value).
4). Control value deviation warning processing function:
When writing the inspection value to the RFID tag, if the inspection value deviates from the range of the management value (reference value), the fact is warned by a display or sound on the screen. The range of the management value is set in advance on the management PC and transferred to the portable information terminal.
5). Tag content deletion function:
In order to erase all the contents of the RFID tag, the data of the RFID tag is erased by the portable information terminal after erasing the data of the corresponding device from the database of the management PC. However, this function can only be used by inspectors with administrative authority.
6). Inspection omission check processing function:
When logging off, warn of unchecked equipment.
7). Calibration expiration date notification function When the RFID data is read by the portable information terminal during inspection, the calibration date of the device stored in the RFID is compared with the internal clock of the portable information terminal. When approached, a warning is displayed on the screen of the portable information terminal.

  FIG. 6 shows a list of management functions realized by the management PC in the method of the present invention. The management function performs management processing such as administrator and device registration. The main control function is a function for performing main control such as function switching on the management PC.

1. RFID tag issue processing function:
In order to add a new RFID tag, the RFID tag is registered on the management PC, and device registration processing is performed. After that, the initial data is written to the new RFID tag with the portable information terminal.
2. Device registration processing function:
New registration, update, and deletion for each inspection target device.
3. Management value setting processing function:
Register and update the upper and lower limits of the management value (reference value) for each RFID tag.
4). Data output processing function:
The contents of the database in the management PC are output to a specific format file or printer.
5). Inspector registration processing function:
The person who performs the patrol inspection with the management PC is registered in advance. Thereby, an inspector is specified at the time of login with the portable information terminal, and the inspector is recorded in the database of the management PC.
6). Portable information terminal data storage and reading processing:
Inspection value and management value (reference value) data are exchanged with the portable information terminal by the management PC. The format of the delivery data is, for example, a CSV file format.

  In this way, by using the information of the RFID attached to the device, (1) it is possible to carry out a patrol inspection of a large number of devices without fail, and to eliminate inspection value input errors. ) Since inspection value deviations and past inspection value transitions can be confirmed on the spot, it is possible to detect malfunctions of equipment at an early stage. (3) Equipment calibration can be managed without omission at an appropriate timing. , The safer and more efficient operation of the facility becomes possible.

The system block diagram for implementing this invention method. Explanatory drawing which shows the example of the data in RFID, and an inspection value input screen. Explanatory drawing which shows one Example of this invention method. Explanatory drawing which summarized the transition condition of each screen. The list figure of the inspection inspection function implement | achieved by the portable information terminal in the method of this invention. FIG. 4 is a list of management functions realized by a management PC in the method of the present invention.

Explanation of symbols

10 Equipment to be inspected 12 RFID tag 14 Personal digital assistant 16 Management PC
18 Printer

Claims (4)

RFID tag attached to each of a plurality of devices to be inspected, a portable information terminal capable of transmitting and receiving data between the RFID tag in a non-contact manner, and management data capable of storing inspection data of the portable information terminal Using a PC,
In the RFID, at least past information including the specific information of the device to which the RFID tag is attached and the inspection value is stored. When the portable information terminal reads the RFID data, the RFID tag The inspection value input screen corresponding to the installed device appears, the stored data of the device is displayed, and the inspection value of the device read visually can be input from the inspection value input screen, When the entered value is written in the portable information terminal as an inspection value, it is also written in the RFID as the latest inspection value against the specific information of the device. After the inspection, the inspection data of the portable information terminal is stored in the management PC. A patrol inspection method using RFID, which is stored in a database.   At the time of inspection, the mobile information terminal updates and displays the number of inspected items and the number of uninspected items at that time. 2. The inspection inspection method using RFID according to claim 1, wherein a list is displayed on the screen, and a warning is issued when the inspection is ended and used despite the number of uninspection cases.   When the portable information terminal reads the RFID data during a patrol inspection, an inspection value input screen corresponding to the device appears, and past information including the specific information of the device and the inspection value is displayed. 3. The inspection inspection by RFID according to claim 1 or 2, wherein a management value indicating an appropriate range of the inspection value of the device is displayed on the screen, and a warning is issued when the input inspection value deviates from the management value. Method.   The calibration information of the device to which the RFID is attached is also stored in the RFID. When the RFID data is read by the portable information terminal during inspection, it is stored in the internal clock of the portable information terminal and the RFID. 4. The calibration date of the device is compared, and when the calibration expiration date is approaching, a message indicating that the device needs to be recalibrated is displayed on the screen of the portable information terminal. Inspection inspection method using RFID as described.

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