JP4929058B2 - Screen display selection device for monitoring - Google Patents

Description

  The present invention particularly relates to a monitoring screen display selection device suitable for monitoring a plant such as a power plant.

  In the field of plant monitoring of power plants and the like, it is necessary to recognize the current status of a wide variety of control targets for the entire plant, and therefore, a considerable number of monitoring screens can be displayed and operated for each using an HMI (Human Interface) device. Done. In addition, since it is necessary to recognize a large number of data at a time, the screen is divided into a large number of sections (having a plurality of independent display areas), and a separate monitoring screen is displayed in each section.

On the other hand, the above-described monitoring screens are often called using a menu screen composed of a plurality of hierarchies. Furthermore, the display of a plurality of monitoring screens is easy to use by registering any combination thereof in the menu. I am trying to improve.
However, when a necessary screen is called from a menu, screen operations in a plurality of layers are necessary, and it takes a long time until the target screen is displayed, and thus the burden on the operator is large. In addition, since there are a large number of combinations of monitoring screen calls to multiple sections, the registration operation for buttons and menus becomes complicated, and it becomes difficult to recognize the buttons and menus registered at the time of calling, resulting in erroneous operations. It was a factor of.

In order to solve these problems, the screen display for process selection that enables quick display of the selected screen without following the menu hierarchy by instructing selection information by direct contact with the graphic display area on the screen has been conventionally performed. A selection device (see, for example, Patent Document 1) is known. In addition, in order to monitor and operate a nuclear power plant, a CRT (Cathode Ray Tube) display system (for example, a cathode ray tube) display system that reduces the burden on the operator by performing a target screen from one hundred screens in one operation. And Patent Document 2) are also known. Furthermore, a console for operation of a process (for example, Patent Document 3) in which a console screen necessary for operation is stored in an IC card, and the IC card is replaced and the console screen is switched to enable operation of a necessary process. See also).
JP-A-8-129473 JP-A-8-171472 JP-A-63-175902

  According to the techniques disclosed in Patent Documents 1 and 2 described above, the target screen is displayed by one operation, so that it is troublesome to register the menu and to expand the menu hierarchy when calling the target screen. Therefore, the load on the operator is reduced and a quick screen display is possible. However, the target screen displayed by one operation cannot be applied to the divided screen in which the entire screen is displayed on one screen and a plurality of monitoring screens are divided and displayed on one screen. Moreover, according to the technique disclosed in Patent Document 3, the object displayed on the screen is a console screen such as a keyboard layout, and the combination of the monitoring screens in which not only the display object but also the content stored in the IC card is divided into screens Therefore, it is difficult to apply to a process monitoring screen that is divided into screens.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a monitoring screen display selection device that enables a simple selection operation of a monitoring screen having a combination displayed by screen division. To do.

In order to solve the above-described problems, a monitoring screen display selection device of the present invention includes a display unit that displays each of the monitoring screens divided into n (n is an arbitrary integer), and a control unit. And a medium stacker that sequentially stores one or more RFID tag mounting media in the order of insertion, and the control unit is registered in the RFID tag chip of the RFID tag mounting medium stored at the top of the medium stacker. Each monitoring screen corresponding to the combination of the monitoring screens is displayed in each display area of the display unit .

  ADVANTAGE OF THE INVENTION According to this invention, the monitoring screen display selection apparatus which enables the simple selection operation of the monitoring screen which has the combination displayed by screen division | segmentation can be provided.

FIG. 1 is a block diagram showing an internal configuration of a monitoring screen display selection apparatus according to an embodiment of the present invention.
As shown in FIG. 1, the monitoring screen display selection device according to the embodiment of the present invention includes a medium stacker 1, a control unit 2 (HMI main body), a display unit 3 (LCD: Liquid Crystal Display), It is comprised by the input parts 4 and 5.

The medium stacker 1 includes a wireless tag reader / writer (R / W) 12 described later. Then, the operator inserts the medium stacker 1 into the insertion slot. For example, the RFID tag mounting medium 11 is embedded in the card-like RFID tag mounting medium 11, and the medium stacker 1 is inserted into the RFID tag mounting medium 11 (RFID tag chip 10) by the built-in RFID tag R / W 12. Are read in the order of insertion, and the read contents are output to the control unit 2.
It is assumed that the RFID tag chip 10 has registered and stored a combination of monitor screens that are divided and displayed on the display unit 3. Here, as shown in the lower part of FIG. 1, the RFID tag chip 10 having the ID “1001001” has a combination of monitoring screens (A to D), and the RFID tag chip having the ID “1001002” has the monitoring screen. It is assumed that the RFID tag chip having the ID “1001003” for the combination (E to H) of FIG.

The control unit 2 selects a combination of monitoring screens based on information registered in the wireless tag chip 10 embedded in the wireless tag mounting medium 11 when the wireless tag mounting medium 11 is inserted into the medium stacker 1. , It is used as an HMI device that displays each corresponding monitor screen in each display area of the display unit 3. Details will be described later.
The display unit 3 displays a combination of each monitoring screen generated by the control unit 2 in a display area (here, section # 1 to section # 4) divided into n (n is an arbitrary integer). For example, a display monitor constituted by an LCD. Here, the RFID tag mounting medium 11 in which the RFID tag chip 10 having the ID “1001001” is embedded is the display target. The input units 4 and 5 are input devices for inputting instructions by an operator, such as a keyboard and a mouse. Here, the input units 4 and 5 are used for updating stored contents of the RFID tag chip 10 embedded in the RFID tag mounting medium 11. To do. Details will be described later.

  FIG. 2 is a block diagram showing an internal configuration of the control unit 2 shown in FIG. As shown in FIG. 2, the control unit 2 includes a main control unit 20, a wireless tag R / W interface unit 21, a tag table management unit 22, a tag table 23, a monitoring image acquisition unit 24, and an image division. The control unit 25 and a VRAM (Video RAM) 26 are included.

When the RFID tag mounting medium 11 is inserted into the medium stacker 1, the main control unit 20 selects a combination of monitoring screens registered in the RFID tag chip 10 and displays each corresponding monitoring screen on the display unit 3. As a control center for the control unit 2 to be displayed in each display area, sequence control of the connected RFID tag R / W interface unit 21, tag table management unit 22, monitoring image acquisition unit 24, and image division control unit 25 is performed. Do.
The wireless tag R / W interface unit 21 functions as an interface that relays read / write data to and from the connected medium stacker 1 (wireless tag R / W 12). The tag table management unit 22 has a function of managing the storage contents of the tag table 23 that is updated when the wireless tag mounting medium 11 is inserted into or pulled out from the medium stacker 1 under the control of the main control unit 20. .

In the tag table 23, for example, as shown in FIG. 3, a registration table 231, a stack list 232, and a currently displayed tag 233 are included.
The screen divided and displayed on the display unit 3 can be recognized by a unique screen number. In the tag table 23 built in the control unit 2, a registration table 231 indicating which screen is displayed in which of the four sections divided by the display unit 3 is allocated. A combination of a partition number and a screen number for each ID included in the tag chip 10 is stored. The stack list 232 is a data area for managing the RFID tag mounting media 11 inserted in the medium stacker 1 together with the order of insertion. Each time the RFID tag mounting medium 11 is inserted into the medium stacker 1, the tag table It is updated by the management unit 22. The currently displayed tag 233 is updated every time the RFID tag mounting medium 11 is inserted into the medium stacker 1, and is stacked at the top of the stack list 232 and is valid for the current display of the RFID tag chip 10. This is flag information indicating an ID.

On the other hand, the monitoring image acquisition unit 24 acquires a video transmitted via a transmission path (not shown) from a monitoring camera (not shown) installed throughout the plant and a monitoring image generated by the main control unit 20. The image is supplied to the image division control unit 25 for display.
The image division control unit 25 synthesizes an image acquired by the monitoring image acquisition unit 24 with reference to the tag table 23 via the tag table management unit 22 under the control of the main control unit 20, and draws it on the VRAM 26. At the same time, the display data drawn in the VRAM 26 is read out in synchronization with the display timing of the display unit 3 and displayed on the display unit 3.

FIG. 4 is a block diagram showing an internal configuration of the medium stacker 1 and the RFID tag mounting medium 11 shown in FIG. The above-described medium stacker 1 incorporates a radio tag R / W 12 in the housing, and stores a plurality of guides and radio tag mounting media 11 installed in the vicinity of an insertion port for inserting and extracting the radio tag mounting medium 11. It has a medium stacker mechanism unit 13 configured with a medium storage box.
The wireless tag R / W 12 electrically includes an antenna 121, a controller 122, and a PC interface 123. In addition to supplying power to the RFID tag mounting medium 11 (RFID tag chip 10), the antenna 121 transmits and receives transfer data and supplies it to the controller 122. The controller 122 modulates and demodulates data transmitted / received via the antenna 121, decodes it, and supplies it to the control unit 2 (wireless tag R / W interface unit 21) via the PC interface 123. In addition, since the plurality of RFID tag mounting media 11 are stored in the medium stacker 1, the controller 122 also performs well-known congestion control. Here, the RFID tag mounting media 11 stored in the latest uppermost portion is effective. Thus, the combination of monitoring screens registered in the embedded RFID tag chip 10 is divided into screens and displayed in the display areas of the display unit 3.

Here, it is assumed that an RFID (Radio Frequency Identifier) is used as the RFID tag chip 10 embedded in the RFID tag mounting medium 11. As illustrated in FIG. 4, the wireless tag chip 10 is an IC chip including an RF (Radio Frequency) unit 102, a power supply rectification unit 103, a storage unit 104, and a logic unit 105. The RF antenna 102 is connected to a coiled antenna 101 connected thereto.
The antenna 101 exchanges data by communicating with the antenna 121 of the wireless tag R / W 12 by radio waves. That is, when the antenna 101 of the RFID tag mounting medium 11 receives radio waves from the RFID tag R / W 12, an electromotive force is generated by a resonance action, and this is rectified by the power rectifier 103, which is one component of the IC chip. The RFID tag chip 10 can be operated by supplying it to the respective configuration blocks 104 and 105. Further, the R / W command supplied from the wireless tag R / W 12 is demodulated by the RF unit 102, and the data stored in the storage unit 104 is read by the logic unit 105 and further modulated by the RF unit 102, It is transmitted via the antenna 101. The wireless tag R / W 12 receives data transmitted from the antenna 121 and passes it to the control unit 2 via the controller 122 and the PC interface 123 to exchange data.
Note that the RFID tag mounting medium 11 may be configured using an inlet in which the RFID tag chip 10 operating in the 4.2 GHz band is mounted on a substitute pole antenna having a length of ½ of the wavelength.

FIG. 5 is a flowchart illustrating the operation flow of the control unit 2 when the RFID tag mounting medium 11 is inserted into the medium stacker 1.
Hereinafter, the operation when the RFID tag mounting medium is inserted in the monitoring screen display selection apparatus according to the embodiment of the present invention shown in FIGS. 1 to 4 will be described in detail with reference to the flowchart of FIG.

First, when the wireless tag mounting medium 11 is inserted into the medium stacker 1 built in the wireless tag R / W 12 by the operator, a wireless tag mounting medium insertion event occurs. The medium stacker 1 transmits the read ID of the RFID tag 10 to the controller 2 via the controller 122 and the PC interface 123 together with the RFID tag mounting medium insertion event.
The control unit 2 (tag table management unit 22) receives the insertion event of the RFID tag mounting medium 11 and the tag ID of the RFID tag chip 10 transmitted by the medium stacker 1 via the RFID tag R / W interface unit 21, The tag table management unit 22 is activated, and the tag IDs of the received wireless tag information are stacked on the stack list 232 of the tag table 23 in the order of insertion (step S51).

Subsequently, the control unit 2 (tag table management unit 22) refers to the tag table 23, searches the registration table 231 for a combination of monitoring screens corresponding to the tag ID = XXX (step S52), and stores the registered records. The presence or absence is determined (step S53). Here, when there is a registration record (“Yes” in step S 53), a set of a section and a screen number to be displayed is read from the registration table 231 and supplied to the screen division control unit 25.
The screen division control unit 25 draws the monitoring image acquired via the monitoring image acquisition unit 24 on the VRAM 26 based on the information related to the combination of the display section and the screen number supplied from the tag table management unit 22 and displays it. The data is read out and displayed in synchronization with the display timing of the unit 3 (step S54). In addition, at this point, the control unit 2 has a split screen corresponding to the (latest) wireless tag mounting medium 11 (stored in the wireless tag 10) last inserted in the medium stacker 1. The tag ID = XXX is written and updated in the currently displayed tag 323 allocated and stored in the tag table 23 (step S55).

On the other hand, if it is determined in step S53 that there is no registered record (“none” in step S53), the control unit 2 (main control 20) further inserts the combination of the currently displayed screens. In order to inquire whether or not to register in the wireless tag mounting medium 11 (wireless tag chip 10), for example, an inquiry screen whose example is shown in FIG. 6A is displayed on the display unit 3 (step S56). FIG. 6A is a diagram illustrating an example of a screen configuration used when a new combination of the RFID tag mounting medium 11 (RFID tag chip 10) and a divided screen is registered.
As described above, when the tag ID of the latest RFID tag mounting medium 11 (RFID tag chip 10) inserted in the medium stacker 1 does not exist in the registration table 231 of the tag table 23, the main control unit 20 It is determined that an unregistered RFID tag mounting medium 11 that is desired to be newly registered is inserted into the stacker 1, and an inquiry screen is displayed on the display unit 3, and a wireless screen in which a combination of currently displayed divided screens is embedded. An inquiry is made as to whether or not to register in the tag chip 10 (step S57).

  Here, when the operator operates the input units 4 and 5 such as a keyboard and a mouse to select “No” (Step S57 “No”), the processing is terminated without doing anything (NULL). On the other hand, when “Yes” is selected (step S57 “Yes”), for example, a list of registered RFID tag mounting media shown in FIG. 6B is displayed on the display unit 3, and the registered RFID tag mounting media is displayed. The registered contents are entered with the keyboard in the registered contents setting field allocated and displayed in the lower part of the list. When the “Register” button is pressed, the main control unit 20 activates the tag table management unit 22, and the tag table management unit 22 newly registers the tag ID = XXX in the registration table 231 (step S58). .

As described above, the tag IDs of the RFID tag mounting medium 11 (RFID tag chip 10) inserted into the medium stacker 1 are accumulated in the stack list 232 of the tag table 23 and updated in the order of arrival. Here, the divided screen displayed on the display unit 3 is a combination of monitoring screens corresponding to the tag IDs of the latest (latest) RFID tag mounting medium 11 (RFID tag chip 10).
In the example of FIG. 3, the RFID tag mounting medium 11 (RFID tag chip 10) having the tag ID “1001002” is stacked at the top of the stack list 232, and at that time, the display unit 3 corresponds to the tag ID “1001002”. An example is shown in which the section # 1 is displayed as the display area of the screen E, the section # 2 is the screen F, the section # 3 is the screen G, and the section # 4 is the display area of the screen H.

  In addition, the currently displayed tag 233 allocated and stored in a predetermined area of the tag table 23 stores the tag ID of the wireless tag mounting medium 11 (wireless tag chip 10) corresponding to the currently displayed combination of divided screens. When the screen of the display unit 3 is switched by a user operation other than the operation using the RFID tag mounting medium 11 (RFID tag chip 10), for example, the operation of the input units 4 and 5 such as a keyboard and a mouse, “NULL” is displayed. Stored and used to recognize that the screen has been switched.

FIG. 7 is a flowchart showing an operation flow of the control unit 2 when the RFID tag mounting medium 11 is pulled out from the medium stacker 1.
Hereinafter, the operation when the RFID tag mounting medium is pulled out by the monitoring screen display selection device according to the embodiment of the present invention shown in FIGS. 1 to 4 will be described in detail with reference to the flowchart of FIG.

In the flowchart of FIG. 7, first, when the RFID tag mounting medium 11 is pulled out from the medium stacker 1 built in the RFID tag R / W 12 by the operator, a RFID tag mounting medium pulling event occurs. The medium stacker 1 transmits the read tag ID (here, XXX) of the wireless tag chip 10 to the control unit 2 via the controller 122 and the PC interface 123 together with the wireless tag mounting medium extraction event.
The control unit 2 (tag table management unit 22) receives the extraction event of the RFID tag mounting medium 11 and the tag ID of the RFID tag chip 10 transmitted by the medium stacker 1 via the RFID tag R / W interface unit 21, The tag table management unit 22 is activated and the entry data corresponding to the tag ID received from the stack list 232 is deleted. That is, tag ID = XXX is deleted from the stack list (step S71).

Subsequently, the tag table management unit 22 determines whether or not the screen currently displayed on the display unit 3 is a combination of monitoring screens corresponding to the tag ID = XXX (step S72). This can be determined by comparing the tag stored in the currently displayed tag 233 of the tag table 23 with the received tag ID = XXX. Here, if it is determined that they are different (step S72 “No”), the RFID tag mounting medium extraction process shown in FIG. 7 ends.
On the other hand, when it is determined that they are the same (step S72 “Yes”), the tag table management unit 22 determines the presence / absence of 11 of the RFID tag mounting media inserted in the media stacker 1 (step S73). This can be determined by the wireless tag R / W interface unit 21 communicating with the PC interface 123 of the wireless tag R / W 12 and providing the acquired information to the tag table management unit 22.

If it is determined that the RFID tag mounting medium 11 is not inserted in the medium stacker 1 and is empty (step S73 “Yes”), the tag table management unit 22 displays the currently displayed tag 233 in the tag table 23. Set to NULL and end (step S74).
On the other hand, if it is determined that the tag is not empty (“No” at step S73), the tag table management unit 22 tags the wireless tag 10 embedded in the wireless tag mounting medium 11 inserted at the top of the medium stacker 1. A combination of monitoring screens corresponding to the ID is searched from the registration table 231, and a combination of a section and a screen number to be displayed is read from the registration table 231 and supplied to the screen division control unit 25 (step S 75). The screen division control unit 25 draws the monitoring image acquired via the monitoring image acquisition unit 24 on the VRAM 26 based on the information related to the combination of the display section and the screen number supplied from the tag table management unit 22 and displays it. The data is read out and displayed in synchronization with the display timing of the unit 3 (step S76).

  At this point, the tag table management unit 22 has a split screen corresponding to the (latest) wireless tag mounting medium 11 (stored in the wireless tag 10) last inserted in the medium stacker 1. Therefore, a new tag ID is written and updated in the currently displayed tag 233 allocated and stored in the tag table 23 (step S77).

As described above, in the monitoring screen display selection device according to the embodiment of the present invention, the control unit 2 (HMI main body) inserts the RFID tag mounting medium 11 in which the RFID tag chip 10 is embedded into the medium stacker 1. In response to this, an arbitrary number (n) of monitoring screen combinations are selected based on the information registered in the RFID tag chip 10, and the corresponding monitoring screens are displayed in the display areas of the display unit 3. Thus, a simple selection operation of a monitoring screen having a combination displayed by screen division can be performed.
Here, it is assumed that the medium stacker 1 has a capacity capable of inserting and storing about 10 card-like RFID tag mounting media 11 in which the RFID tag chip 10 is embedded. Further, the medium stacker 1 has a built-in PC interface capable of communicating with the wireless tag R / W 12 and the control unit 2 (HMI main body), and only the wireless tag mounting medium 11 (wireless tag chip 10) stored at the top is congested. It is accurately read by control and transferred to the control unit 2. In this way, by adopting a configuration in which a plurality of RFID tag mounting media 11 can be inserted and stored, it is not necessary to remove the unused RFID tag mounting media 11 and the convenience of the operator can be achieved.

  The display unit 3 has, for example, an LCD as a monitor, and here displays four screens in a divided manner, and independent monitoring screens are displayed in the respective sections. That is, when the RFID tag mounting medium 11 in which the RFID tag chip 10 is embedded is inserted into the medium stacker 1 and stored, a monitoring screen prepared corresponding to the tag ID of the RFID tag chip 10 is displayed on the LCD. . Further, an input device (input units 4 and 5) such as a keyboard and a mouse is connected to the control unit 2 (HMI main body), and an operation equivalent to the conventional one is possible. However, here, it is used as a means for inputting an instruction of an operator for registering a combination of monitoring screens in the unregistered RFID tag chip 10.

According to the monitoring screen display selection apparatus according to the embodiment of the present invention, the switching operation of the monitoring screen is performed by inserting or pulling out the RFID tag mounting medium 11 into the medium stacker 1. The occurrence of the insertion / extraction event of the wireless tag mounting medium 11 is controlled from the medium stacker 1 together with the ID uniquely held by the wireless tag chip 10 (wireless tag mounting medium 11) read by the wireless tag R / W 12 built in the medium stacker 1. It is transmitted to part 2 (HMI body). Then, when the RFID tag mounting medium 11 is inserted, the screen displayed on the display unit 3 is switched to the combination display of the monitoring screen corresponding to the ID of the RFID tag chip 10 to be inserted.
The control unit 2 (HMI main body) also manages the RFID tag mounting media 11 stored in the medium stacker 1 and the insertion order thereof, and the extracted RFID tag mounting media 11 is currently displayed at the time of extraction. If it corresponds to the middle screen, the display is switched to the combination display of the monitoring screen corresponding to the ID of the wireless tag mounting medium 11 (wireless tag chip 10) inserted immediately before.

When the combination of the monitoring screens displayed on the display unit 3 when the operator inserts the RFID tag mounting medium 11 is changed by a normal operation using the input units 4 and 5 such as a keyboard and a mouse, for example, The storage of the monitoring screen being displayed on the unit 3 is erased and becomes a non-selected state. In this case, even if the RFID tag mounting medium 11 is pulled out, the screen display does not change.
Further, when the RFID tag mounting medium 11 in which the RFID tag chip 10 not registered in the control unit 2 (registration table 231) is embedded is inserted into the medium stacker 1, the control unit 2 (HMI main body) is newly registered. For example, a screen display for registering a combination of currently displayed monitoring screens shown in FIG. 6A is performed, and a combination of the currently displayed monitoring screens and a new registration are displayed in the registration table 231. The ID of the wireless tag mounting medium 11 (wireless tag chip 10) is stored in association with each other.

  An arbitrary registered character string can be stored from this registration screen, and this can be confirmed by the registered RFID tag mounting medium list screen shown in FIG. When the registration is deleted, the registered RFID tag mounting medium list screen is displayed, and the record to be deleted can be deleted from the list. Furthermore, the display of the registered RFID tag mounting medium list screen itself is also registered by the RFID tag mounting medium 11 so that only an authorized person having the RFID tag mounting medium 11 can perform the registration deletion operation. .

Also, as shown in FIG. 8, a sticker is affixed to one side of the registered RFID tag mounting medium 11, and the registered title (FIG. 8A) and the thumbnail of the monitoring screen are affixed (FIG. 8). (B)) As a result, the operator can immediately associate the RFID tag mounting medium 11 with the displayed monitoring screen.
Further, in an HMI system normally used in plant monitoring or the like, operation monitoring is usually performed by a plurality of HMI devices. Therefore, a registration table 231 allocated and stored in the tag table 23 is a LAN (Local Area Network). It can be shared with other screen display selection devices for monitoring via a communication network such as WAN (Wide Area Network), and can be merged or copied. By doing so, the operator can use the same RFID tag mounting medium 11 not only in the registered monitoring screen display selection device but also in other monitoring screen display selection devices.

According to the monitoring screen display selection device according to the above-described embodiment of the present invention, the operator can switch the monitoring screen only by inserting / removing the RFID tag mounting medium 11 in which the RFID tag chip 10 is embedded in the medium stacker 1. It can be done easily. As this application, the monitoring screen is sequentially switched to monitor the whole, and is particularly suitable for plant control. The same effect can be obtained when used in the field of home security.
2 may be realized entirely by hardware, or at least a part thereof may be realized by software. For example, the data processing in the main control unit 20 and the tag table management unit 22 may be realized on a computer by one or a plurality of programs, or at least a part thereof may be realized by hardware.

It is a block diagram which shows the internal structure of the monitor screen display selection apparatus which concerns on embodiment of this invention. It is a block diagram which shows the internal structure of the control part 2 shown in FIG. It is the figure shown in order to demonstrate the relationship between the tag table shown in FIG. 2, and the combination of the monitor screen. FIG. 2 is a block diagram illustrating an internal configuration of the medium stacker 1 illustrated in FIG. 1. It is a flowchart which shows the operation | movement at the time of the RFID tag mounting medium insertion of the monitoring screen display selection apparatus concerning embodiment of this invention. It is a figure which shows an example of the screen structure used with the monitoring screen display selection apparatus concerning embodiment of this invention. It is a flowchart which shows the operation | movement at the time of the RFID tag mounting medium extraction of the screen display selection apparatus for monitoring which concerns on embodiment of this invention. It is the figure shown in order to demonstrate the sticker sticking surface of the RFID tag mounting medium used for the screen display selection device for surveillance concerning an embodiment of the invention.

Explanation of symbols

1 Medium stacker 2 Control unit 2 (HMI body)
3 Display (LCD)
4, 5 Input section 10 RFID tag chip (RFID)
DESCRIPTION OF SYMBOLS 11 RFID tag mounting medium 12 RFID tag reader / writer 20 Main control part 21 RFID tag R / W interface part 22 Tag table management part 23 Tag table 24 Monitoring image acquisition part 25 Image division control part 26 VRAM
231 Registration table 232 Stack list 233 Currently displayed tag

Claims (4)

a display unit for displaying each monitoring screen in a display area divided into n pieces,
When the RFID tag mounting medium in which the RFID tag chip is embedded is inserted, the combination of the n monitoring screens is based on information in which the combination of the monitoring screens registered in the RFID tag chip is determined as one set. A control unit that selects and displays each corresponding monitoring screen in each display area of the display unit;
A monitoring screen display selection device that having a,
Furthermore, it has a medium stacker that sequentially stores one or more RFID tag mounting media in the order of insertion,
The controller is
Each monitor screen corresponding to a combination of n monitor screens registered in the RFID tag chip of the RFID tag mounting medium stored at the top of the medium stacker is displayed in each display area of the display unit. A screen display selection device for monitoring. The controller is
When the RFID tag mounting medium in which the unregistered RFID tag chip is embedded is stored in the uppermost part of the medium stacker, each of the display units at the time when the RFID tag mounting medium is inserted into the unregistered RFID tag chip. The monitoring screen display selection device according to claim 1 , wherein a combination of n monitoring screens displayed in the display area is registered. The controller is
When the RFID tag mounting medium stored at the top is pulled out from the medium stacker, the RFID tag mounting medium is pulled out and then embedded in the RFID tag mounting medium stored at the top of the medium stacker. 2. The monitoring screen according to claim 1 , wherein n monitoring screens corresponding to a combination of n monitoring screens stored in the RFID tag chip are displayed by switching to each display area of the display unit. Display selection device. It has an input part where instructions are input by the operator,
The controller is
When a change instruction is input via the input unit, the display unit is displaying in each display area of the display unit registered in the RFID tag chip embedded in the RFID tag mounting medium stored at the top of the medium stacker. 4. The monitoring screen display selection device according to claim 3 , wherein the information regarding the combination of n monitoring screens is erased to be in a non-selected state.

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