JP2013250602A - Terminal device, control method of terminal device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal device, a control method of the terminal device and a program which can effectively draw user's attention to operation of a browser, to the user who operates the terminal device executing a web application through a function of a browser.SOLUTION: A tablet terminal 10 comprises a display control unit 28 for displaying a screen on a display panel 10b, an input detection unit 29 for detecting an operation by a touch sensor 10c which is arranged on the display panel 10b, and a browser execution unit 26a which downloads a web page about a POS application from a POS server 17, generates a browser screen by a browser function on the basis of the downloaded web page, and displays the screen by the display control unit 28. The browser execution unit 26a operates the web page by the browser function after detecting a specific operation by the input detection unit 29, in a state that the browser screen is displayed.

Description

  The present invention relates to a terminal device having a browser function, a terminal device control method, and a program.

  Conventionally, a terminal device that downloads and executes a web application from a server is known. As this type of device, for example, a web application downloaded from a POS server is executed by a web browser (hereinafter referred to as a browser) to operate as a POS terminal (see, for example, Patent Documents 1 and 2). This type of apparatus has an advantage that functions such as a POS terminal can be realized by a terminal apparatus equipped with a versatile browser.

JP 2009-15747 A JP 2001-175953 A

By the way, when the browser of the terminal device is a general-purpose browser, an operation used for browsing a general website is effective even while the terminal device is operated as a POS terminal or the like. Specifically, a so-called “return” operation for instructing display transition to a previously displayed web page, an operation for instructing display transition to a web page registered in advance as “favorites”, etc. are effective. Yes. If these operations are performed while the terminal device is operated as a POS terminal or the like, the function as the POS terminal is interrupted. For this reason, there has been a demand for a method for effectively informing a user who operates the terminal device so that the above operation is not performed during execution of the web application.
The present invention has been made in view of the above-described circumstances, and is a terminal capable of effectively alerting a user who operates a terminal device that executes a web application using a browser function regarding browser operation. It is an object to provide a device, a control method of a terminal device, and a program.

In order to achieve the above object, a terminal device of the present invention includes a display means for displaying a screen on a display screen, an input detection means for detecting an operation by a touch sensor arranged on the display screen, and a POS from an external device. Control means for downloading a web page related to the application, generating a browser screen by a browser function based on the downloaded web page, and displaying the browser screen by the display means, wherein the control means is in a state in which the browser screen is displayed. Then, after detecting a specific operation by the input detection means, the web page is operated by the browser function.
According to the present invention, it is necessary to perform a specific operation before a web page downloaded from an external device is operated by a browser, for example, a POS application is operated. Therefore, it is possible to realize a configuration in which the downloaded web page is executed only when the user who operates the terminal device and uses the POS application agrees with the operating precautions. Thereby, it is possible to effectively alert the user who uses the POS application regarding the operation of the browser. In particular, in a terminal device in which an input operation is performed using a touch sensor provided on a display screen, an inadvertent operation is likely to occur. Furthermore, if data related to accounting processing is lost due to an erroneous operation while using the POS application, it may hinder business operations. According to the present invention, for example, a screen for calling attention to such a user is displayed, and a web page is operated after an operation of agreeing with the displayed attention, so that the user can be surely and effectively effective. Can call attention. Accordingly, in a terminal device in which an input operation is performed using a touch sensor provided on a display screen, it is possible to prevent or suppress an erroneous operation even when using a POS application, which is useful.

Further, the present invention is the terminal device, wherein the control unit determines that the browser screen is a message corresponding to a warning or caution when the web page is determined to be the web page that operates a POS application. A screen on which an input area corresponding to the message is arranged is generated and displayed by the display means.
According to the present invention, when a POS application is operated by a browser, a message corresponding to a warning or caution is displayed by the browser, for example, an operation indicating consent to this message is requested, and the operation is confirmed. Then you can perform another action. Thereby, when executing the POS application, the user can be surely and effectively alerted. Further, since a message corresponding to a warning or caution is not displayed when the POS application is not executed, for example, when a general-purpose browser is used, convenience when the POS application is not used is not impaired.

Further, the present invention is the above terminal device, wherein the display unit is configured to be able to display a plurality of screens, and the control unit corresponds to the message corresponding to a warning or caution and the message. When displaying a screen on which an input area is arranged, the browser screen generated based on the downloaded web page is displayed in an inactive state on the background of the screen.
According to the present invention, the screen of the web page downloaded as a background is displayed in an inactive state while a message corresponding to a warning or caution is displayed. For this reason, it is possible to notify the user that the message is related to the downloaded web page, and to clearly communicate that the execution of the web page is related to the input to the input area. Therefore, when executing the POS application, the user can be surely and effectively alerted.

In order to achieve the above object, the present invention provides a control method for a terminal device including a display screen and a touch sensor arranged on the display screen, and a web page related to a POS application is displayed from an external device. A step of downloading, a step of generating a browser screen by a browser function based on the downloaded web page and displaying the browser screen on the display screen, and after detecting a specific operation by the touch sensor in a state where the browser screen is displayed And a step of operating the web page by the browser function.
By executing the control method of the present invention, a specific operation needs to be performed on a terminal device before a web page downloaded from an external device is operated by a browser, for example, before a POS application is operated. . Therefore, it is possible to realize a configuration in which the downloaded web page is executed only when the user who operates the terminal device and uses the POS application agrees with the operating precautions. Thereby, it is possible to effectively alert the user who uses the POS application regarding the operation of the browser. In particular, in a terminal device in which an input operation is performed using a touch sensor provided on a display screen, an inadvertent operation is likely to occur. Furthermore, if data related to accounting processing is lost due to an erroneous operation while using the POS application, it may hinder business operations. According to the present invention, for example, a screen for calling attention to such a user is displayed, and a web page is operated after an operation of agreeing with the displayed attention, so that the user can be surely and effectively effective. Can call attention. Accordingly, in a terminal device in which an input operation is performed using a touch sensor provided on a display screen, it is possible to prevent or suppress an erroneous operation even when using a POS application, which is useful.

In order to achieve the above object, the present invention provides a program that can be executed by a computer including a display screen and a touch sensor arranged on the display screen, and the computer displays the screen on the display screen. Display means for displaying, input detection means for detecting an operation by a touch sensor arranged on the display screen, a web page related to a POS application is downloaded from an external device, and a browser screen is provided by a browser function based on the downloaded web page The control unit operates the web page by the browser function after detecting the specific operation by the input detection unit while the browser screen is displayed. It is characterized by making it.
By executing the program of the present invention by a computer, it is necessary to perform a specific operation before a web page downloaded from an external device is operated by a browser, for example, a POS application is operated. Therefore, it is possible to realize a configuration in which the downloaded web page is executed only when the user who operates the terminal device and uses the POS application agrees with the operating precautions. Thereby, it is possible to effectively alert the user who uses the POS application regarding the operation of the browser. In particular, in a terminal device in which an input operation is performed using a touch sensor provided on a display screen, an inadvertent operation is likely to occur. Furthermore, if data related to accounting processing is lost due to an erroneous operation while using the POS application, it may hinder business operations. According to the present invention, for example, a screen for calling attention to such a user is displayed, and a web page is operated after an operation of agreeing with the displayed attention, so that the user can be surely and effectively effective. Can call attention. Accordingly, in a terminal device in which an input operation is performed using a touch sensor provided on a display screen, it is possible to prevent or suppress an erroneous operation even when using a POS application, which is useful.

  According to the present invention, it is possible to effectively alert a user who uses a POS application by executing a web page by a browser of a terminal device, with respect to the operation of the browser.

It is a schematic block diagram of a control system according to an embodiment. It is a block diagram which shows the functional structure of a control system. It is a figure which shows the example of the screen displayed on a terminal device. It is a figure which shows the example of the screen displayed on a terminal device. It is a flowchart which shows operation | movement of a control system.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram of a control system 1 according to the present embodiment. FIG. 2 is a block diagram schematically showing the functional configuration of the tablet terminal 10, the printer 11, and the POS server 17.
The control system 1 is an aspect of a so-called POS system that is used for retail stores such as shopping centers and department stores, or other various stores. The main functions of the control system 1 are, for example, a function for managing the status of product sales in a store, the status of product inventory, the status of sales, etc., and the product purchased by a customer at a cashier counter L provided in the store. For example, a function for accounting, and a function for issuing a receipt in response to payment of a customer's price.

  In a store where the control system 1 shown in FIG. 1 is used, for example, a plurality of cashier counters L that perform accounting processing are provided, and each cashier counter L has a tablet terminal 10 (terminal device) and the tablet terminal 10. And a printer 11 connected to the. The tablet terminal 10 and the printer 11 are communicably connected via the communication line 5. The communication line 5 is a wired or wireless communication line that complies with the Ethernet (registered trademark) standard, and a specific mode thereof can be used as long as data can be transmitted and received between devices connected by the communication line 5. Is not limited.

The tablet terminal 10 is a tablet (plate-shaped) computer. In the present embodiment, as will be described later with reference to FIG. 3, the tablet terminal 10 is provided with a touch panel 10 a on almost the entire front surface (front surface).
The touch panel 10a has a configuration in which a touch panel 10b serving as a display screen is overlaid with a touch sensor 10c that detects a touch operation and is integrated. Since the tablet terminal 10 operates by detecting a user operation by the touch sensor 10c, it is not necessary to externally connect a keyboard, a display panel, or the like to the tablet terminal 10.

The printer 11 is, for example, a thermal printer that prints on heat-sensitive roll paper, a dot impact printer, or the like. The tablet terminal 10 prints and outputs a receipt according to data input from the tablet terminal 10.
The printer 11 includes a bar code scanner 12 for reading a bar code attached to a product or product packaging, a card reader 13 for reading a credit card, a customer's membership card, etc., a cash drawer 14 for storing banknotes, money, cash vouchers, An external device such as a customer display 15 for displaying information related to accounting for the customer is connected. The card reader 13 may read magnetic information recorded on the magnetic card or read / write information from / to the IC card.
The barcode scanner 12 is connected to the printer 11 by short-range wireless communication compliant with the Bluetooth (registered trademark) standard. The card reader 13 is connected to the printer 11 by a wired communication method compliant with a standard such as USB. The cash drawer 14 and the customer display 15 are each connected to the printer 11 by a wired communication system compliant with various standards such as RS-232C and USB. The bar code scanner 12, the card reader 13, the cash drawer 14, and the customer display 15 each execute a predetermined communication protocol to transmit / receive various data and signals to / from the printer 11.

The printer 11 includes a printer-side control unit 20, a printer unit 21, a wireless communication unit 22, a wired communication unit 24, and a printer-side interface 23 (I / F).
The printer-side control unit 20 centrally controls each unit of the printer 11 and includes a CPU, a RAM, a ROM, other peripheral circuits and the like (not shown). The printer 11 is installed with at least a printer driver for controlling the printer unit 21 and a communication driver for communicating with the tablet terminal 10 in accordance with a predetermined standard. The printer-side control unit 20 includes a printer driver execution unit 20a that executes a printer driver and a communication driver execution unit 20b that executes a communication driver.
The printer unit 21 prints (records) an image on roll paper, then cuts the roll paper and issues a receipt. Although not shown, the printer unit 21 includes a control circuit that controls a series of operations related to printing, a transport mechanism that transports roll paper, a recording head, a printing mechanism that prints characters and images on the roll paper, and roll paper A cutter mechanism or the like is provided.

The wireless communication unit 22 performs short-range wireless communication conforming to the Bluetooth standard with the barcode scanner 12, and includes a link manager, a link controller, a high-frequency circuit, an antenna, and the like.
The communication control unit 20c reads out and executes a so-called Bluetooth Driver Stack for controlling the Bluetooth hardware. The communication control unit 20 c controls the wireless communication unit 22 to perform short-range wireless communication with the barcode scanner 12.
The wired communication unit 24 executes a predetermined communication protocol with at least the card reader 13 and the customer display 15 among the input devices. The wired communication unit 24 includes a network interface card connected to the physical port. The wired communication unit 24 transmits / receives various data or signals to / from the card reader 13 and the customer display 15 according to the control of the communication control unit 20c of the printer-side control unit 20.
The printer side interface (I / F) 23 is connected to the communication line 5 (FIG. 1), and transmits / receives various data to / from the tablet terminal 10 under the control of the printer side control unit 20.

The tablet terminal 10 includes a terminal-side control unit 26, a terminal-side interface (I / F) 27, a display control unit 28, an input detection unit 29, and a touch panel 10a.
As shown in FIG. 3, the touch panel 10a includes a display panel 10b arranged on the front surface of the tablet terminal 10 and a touch sensor 10c arranged so as to overlap the display panel 10b. The display panel 10 b is a flat display such as a liquid crystal display panel, an organic EL panel, or electronic paper, and is driven by the display control unit 28. The touch sensor 10 c is disposed on the surface of the tablet terminal 10. Note that the surface of the touch sensor 10c may be covered with glass, a synthetic resin sheet, or the like. The touch sensor 10c is a capacitive or pressure-sensitive sensor, detects a contact operation with a user's finger or a pen-type operation device, and outputs a signal indicating a position where the operation is detected to the input detection unit 29.
The display control unit 28 (display unit) drives the display panel 10b based on the display data input from the browser execution unit 26a, and displays a screen including characters, images, and the like on the display panel 10b.
The input detection unit 29 (input detection means) detects a touch operation on the touch panel 10a based on a signal output from the touch sensor 10c. When this operation is detected, the input detection unit 29 generates coordinate data indicating the operation position by coordinates corresponding to the display position of the display panel 10b, and outputs the coordinate data to the browser execution unit 26a.

The terminal-side control unit 26 centrally controls each unit of the tablet terminal 10 and includes a CPU, ROM, RAM, and other peripheral circuits (not shown). The terminal-side control unit 26 includes a browser execution unit 26a that implements a general-purpose web browser function by executing a browser program.
The browser execution unit 26a (control means) functions as a web browser by executing a general-purpose browser program. The browser program executed by the browser execution unit 26a corresponds to the program of the present invention. This program may be stored in advance in a ROM included in the terminal-side control unit 26, or may be downloaded by the tablet terminal 10 from an external device such as the POS server 17.

The browser execution unit 26a downloads a web page described in a markup language such as HTML or a script language from the POS server 17 by the function of the web browser. The downloaded web page data is stored in a RAM (not shown), for example. The browser execution unit 26 a reads the data of the downloaded web page by the function of the web browser, generates display data for displaying the web page, and outputs the display data to the display control unit 28. In addition, when a script or the like for executing a web application program is described in the web page, the browser executing unit 26a executes the script or the like, and the application executing unit 30a of the POS server 17 executes the web. Run the application program. Here, when a touch operation on the touch sensor 10 c is detected by the input detection unit 29, the browser execution unit 26 a displays the coordinate data input from the input detection unit 29 corresponding to the touch operation and the display control unit 28. Based on the output display data, the input content is specified. The browser execution unit 26a transmits data indicating the specified input content to the POS server 17, and executes processing based on the data input by the application execution unit 30a. The browser execution unit 26a receives from the POS server 17 data of execution results obtained by executing the web application program by the application execution unit 30a, generates display data reflecting the received data, and outputs the display data to the display control unit 28.
The terminal side interface 27 (I / F) communicates with the printer 11 and the POS server 17 in accordance with the communication standard under the control of the terminal side control unit 26.

The POS server 17 (external device) includes a database that stores information related to merchandise, a database that manages sales, a database that manages inventory, and the like, and manages the entire control system 1 using these databases. .
The POS server 17 includes a server-side control unit 30, a server-side storage unit 31, and a server-side interface 32 (I / F).
The server-side control unit 30 centrally controls each unit of the POS server 17 and includes a CPU, a ROM, a RAM, and other peripheral circuits. The server-side storage unit 31 includes a hard disk and a nonvolatile memory such as an EEPROM, and stores various data in a rewritable manner. The server side interface 32 (I / F) performs communication based on the communication standard with the tablet terminal 10 under the control of the server side control unit 30.
The server-side storage unit 31 stores a web application 35 (POS application) so that it can be loaded. The application execution unit 30 a of the server-side control unit 30 is a functional block that executes the web application 35.
The web application 35 is a program for executing processing necessary for the control system 1 to operate as a POS system.
The application execution unit 30 a generates web page data requested from the tablet terminal 10 or reads the data from the server-side storage unit 31 and transmits the data to the tablet terminal 10. In addition, when the application terminal 30a transmits data requesting execution of the web application 35 and accounting data to be processed by the web application 35 from the tablet terminal 10, these data are sent to the server-side interface 32. Receive via. By executing the web application 35, the application execution unit 30 a executes an accounting process based on data transmitted from the tablet terminal 10 and transmits a processing result to the tablet terminal 10.

FIG. 3 is a diagram illustrating a screen 4 a as an example of a screen (browser screen) displayed on the touch panel 10 a by the tablet terminal 10. The screen 4a shown in FIG. 3 is an example of a dedicated user interface UI for POS.
On the screen 4a, a display area for displaying information necessary for the tablet terminal 10 to operate as a POS terminal for performing accounting processing related to product sales, and an input field for inputting necessary data are arranged. Yes.
As the display area, there is a list display area 39 in which the name of the product purchased by the customer, the unit price of the product, and the quantity of the product are displayed in a list.
As input fields, an amount input field 40, a barcode information input field 41, a member number input field 42, and an address input field 44 are arranged. In these input fields, data is input at the time of accounting processing, and various input information is displayed.
Further, a software numeric keypad 43 for inputting a numerical value in each input field is displayed on the screen 4a. An input field to be input is selected by a touch operation on the input field, and a numerical value is input to the selected input field by a touch operation on the software numeric keypad 43.

In the amount input field 40, the total amount of products purchased by the customer by the operation of the software numeric keypad 43, the deposit amount received from the customer at the time of accounting, the amount of change to be given to the customer, and the mode of discount applied to the accounting Each piece of information is input.
In the barcode information input field 41, information represented by the barcode read by the barcode scanner 12 (hereinafter referred to as “barcode information”) is input and displayed.
In the membership number input field 42, when the customer's membership card is read by the card reader 13, the membership number acquired by the reading is input and displayed.
In the address input field 44, the URL (address) of the server accessed by the browser execution unit 26a by the browser function during display of the screen 4a is displayed. Since the URL accessed by the browser execution unit 26a is normally set in advance, there are few opportunities for input using the software numeric keypad 43 or the like.

  A user who operates the tablet terminal 10 with this screen 4 a displayed reads the membership card with the card reader 13 (FIG. 2), reads the product barcode with the barcode scanner 12, and operates the software numeric keypad 43. The cashier accounting process is performed by inputting the amount and operating the confirmation key of the software numeric keypad 43.

That is, the browser execution unit 26a of the tablet terminal 10 reads the data indicating the membership number read from the customer's membership card by the card reader 13 and the barcode scanner 12 by executing the script of the web page downloaded from the POS server 17. Data indicating the bar code of the selected product is acquired. The browser execution unit 26a displays the acquired information in each input field of the screen 4a, and inquires the application execution unit 30a about the name and unit price of the product corresponding to the barcode. Upon receiving this inquiry, the application execution unit 30 a acquires necessary information from the database by the function of the web application 35, and outputs the acquired information to the tablet terminal 10.
The browser execution unit 26a displays the name of the product purchased by the customer, the unit price of the product, and the quantity of the product in the list display area 39 by executing the script, and the purchased product is displayed in a predetermined column of the amount input field 40. Displays the total amount of.

  Thereafter, the user performs an operation for confirming a product to be checked through the software numeric keypad 43. In response to this operation, the browser execution unit 26a calculates the total amount to be paid by the customer by executing the script, and inputs the total amount in an appropriate column of the amount input field 40. Further, when the user deposits the price from the customer and inputs the deposit amount with the software numeric keypad 43, the browser execution unit 26a calculates the amount of change and inputs it to the amount input field 40 and displays it. Next, the browser execution unit 26 a generates print data for printing a receipt and outputs the print data to the printer 11. The printer driver execution unit 20a of the printer 11 controls the printer unit 21 according to the print data input from the tablet terminal 10 to print a receipt.

  As described above, the control system 1 functions as a POS system using the function of the web application 35 by the tablet terminal 10 downloading the web page from the POS server 17, displaying the screen 4 a and executing the script. . For this reason, it is not necessary to mount a so-called POS application on the tablet terminal 10 itself. With this configuration, the identity of the application executed by each tablet terminal 10 can be maintained, and, for example, when upgrading the application, it is not necessary to perform work related to the upgrade for each tablet terminal 10, and maintainability is improved. improves. Furthermore, since it is not necessary to implement a special function in the tablet terminal 10 and to connect a special external device, it is possible to use a general-purpose tablet terminal 10 in which at least a browser is installed.

As described above, the screen 4a is a screen on which the browser execution unit 26a displays a web page by using a general-purpose web browser function. Further, based on the data input by the user, the POS server 17 executes the web application 35 as will be described later, whereby a total amount, a change amount, and the like are calculated and displayed in the amount input field 40.
For this reason, on the screen 4a, the return key 45 and the advance key 46 for instructing to change the web page displayed by the browser to the previously displayed web page, and the web page registered in advance as a favorite are displayed. A browser operation unit 50 including a favorite key 47 for instructing to perform is arranged. The browser operation unit 50 is always displayed on the screen displayed by the web browser, and is suitable for displaying and browsing various web pages.
However, if the browser operation unit 50 is operated while the screen 4a is being displayed and the user is executing the accounting process, the displayed screen 4a is switched to the screen of another web page. The session between the tablet terminal 10 and the POS server 17 is disconnected. In addition, there is a possibility that data that has been input in the input field of the screen 4a is lost.
Therefore, the browser execution unit 26a has a function of urging the user not to operate the browser operation unit 50 before displaying the screen 4a and enabling input in the input field.

FIG. 4 is a diagram illustrating an example of a screen displayed on the touch panel 10 a by the tablet terminal 10.
When the browser execution unit 26a downloads and displays web page data from the POS server 17 in accordance with the operation of the tablet terminal 10, the browser execution unit 26a determines whether the web page is a web page related to a POS application. For example, if a script is included in the downloaded web page data, and the script is executed and the POS server 17 is requested to execute the POS application, it can be determined that the web page is related to the POS application. More specifically, it can be determined by the name, URL, port, etc. of the server accessed by the script.
When displaying a web page related to the POS application, the browser execution unit 26a displays a screen for prompting the user to pay attention before the web page. An example of the screen displayed here is a screen 4b in FIG.

On the screen 4b, a caution message 51 that prompts the user not to operate the return key 45 and the forward key 46 and a caution message 52 that prompts the user not to operate the favorite key 47 are arranged. By displaying the caution messages 51 and 52, the user who operates the tablet terminal 10 can be alerted before operating the POS application.
Furthermore, a check box 53 corresponding to the caution message 51 and a check box 54 corresponding to the caution message 52 are arranged on the screen 4b. The check boxes 53 and 54 are input boxes that are switched ON / OFF by a touch operation on the touch panel 10a. The user inputs the intention display agreeing with the content of the caution message 51 into the check box 53. In addition, the user inputs the intention display agreeing with the content of the caution message 52 to the check box 54. When both the check boxes 53 and 54 are turned ON, the browser execution unit 26a switches the screen being displayed on the touch panel 10a from the screen 4b to the screen 4a. For this reason, the tablet terminal 10 can be operated as a POS terminal only when the user accepts the contents of the caution messages 51 and 52.

Further, as shown in FIG. 4, while the screen 4b is displayed, the screen 4a is displayed as the background of the screen 4b. The screen 4a is drawn as a lower layer of the screen 4b so as not to disturb the display of the screen 4b, and is displayed in a light color such as gray (indicated by a broken line in the drawing). When the browser execution unit 26a detects input to the check boxes 53 and 54 and switches from the screen 4b to the screen 4a, the screen 4b is deleted and the screen 4a is displayed in the normal display color. The display state of the screen 4a in this case is a display state when an inactive (inactive) screen is displayed, and is displayed in a lighter color or gray than the display color in the active state. By displaying the screen 4a as a background in an inactive manner, the user can clearly know that the caution messages 51 and 52 are cautions when operating the screen 4a. Therefore, the user who is requesting an irrelevant function is not required to input, and convenience is not impaired.
As described above, when the tablet terminal 10 is operated as a POS terminal, the check boxes 53 and 54 must be input. Thereby, the tablet terminal 10 which is a general-purpose terminal device can be used as a POS terminal by executing the function of a general-purpose browser. And when using as a POS terminal, attention can be effectively urged not to perform an operation related to a function that should not be performed among the functions of a general-purpose web browser.

FIG. 5 is a flowchart showing the operation of the control system 1, and particularly shows the operation of the tablet terminal 10 related to the display of the screens 4a and 4b.
First, a cashier or other worker who operates the tablet terminal 10 operates the tablet terminal 10 to activate the browser function of the browser execution unit 26a. Subsequently, the user operates the tablet terminal 10 to instruct display of a web page.
The browser execution unit 26a accesses the POS server 17 in response to a user operation, requests a web page for the POS application from the server-side control unit 30, and downloads the web page (step S11).

Next, the browser execution unit 26a determines whether or not the downloaded web page is a web page related to the POS application (step S12). If the downloaded web page is not a web page related to the POS application (step S12; No), the browser execution unit 26a causes the display control unit 28 to display the downloaded web page, and the web page includes a script. If yes, the script is executed (step S13).
On the other hand, when the downloaded web page is a web page related to the POS application (step S12; Yes), the browser execution unit 26a generates display data for the screen 4b based on data stored in the ROM in advance. (Step S14), the downloaded web page, that is, display data for the screen 4a is generated (Step S15), and the screen 4a and the screen 4b are overlapped and displayed on the touch panel 10a (Step S16). Thereby, as illustrated in FIG. 4, the screen 4b is displayed on the touch panel 10a so as to overlap the screen 4a.

Thereafter, the browser execution unit 26a waits until an input operation is detected by the input detection unit 29 (step S17). When the input operation is performed (step S17; No), an input as an intention display agreeing to the attention is performed. It is determined whether or not it is completed (step S18). If the input has not been completed (step S18; No), the process returns to step S17 to wait for the input operation. When the input is completed (step S18; Yes), the display on the touch panel 10a is switched, the downloaded web page is displayed by the display control unit 28, and the script included in the web page is executed ( Step S19).
Thereby, the tablet terminal 10 can be used as a POS terminal.

As described above, in the control system 1 in the present embodiment, the display control unit 28 that displays a screen on the display panel 10b, the input detection unit 29 that detects an operation by the touch sensor 10c disposed on the display panel 10b, A browser execution unit 26a that downloads a web page related to the POS application from the POS server 17, generates screens 4a and 4b by a browser function based on the downloaded web page, and causes the display control unit 28 to display the screens. In the state where the screens 4a and 4b are displayed, after the input detection unit 29 detects a specific operation on the check boxes 53 and 54, the web page is operated by the browser function.
As a result, before the web page script downloaded from the POS server 17 is operated by the browser function of the browser execution unit 26a and the application execution unit 30a of the POS server 17 is operated, the check boxes 53 and 54 on the screen 4b are turned on. It is necessary that a specific operation is performed. Therefore, it is possible to realize a configuration in which the downloaded web page is executed only when the user who operates the tablet terminal 10 and uses the POS application agrees with the operating precautions.
Thereby, it is possible to effectively alert the user who uses the POS application regarding the operation of the browser. In particular, in the tablet terminal 10 in which an input operation is performed using the touch sensor 10c, an inadvertent operation is likely to occur. Furthermore, if data related to accounting processing is lost due to an erroneous operation while using the POS application, it may hinder business operations. By displaying the screen 4b for prompting the user's attention and allowing the script on the screen 4a to operate after the operation of agreeing with the displayed attention, the user can be surely and effectively effective. Can call attention. Therefore, in the tablet terminal 10 in which an input operation is performed using the touch sensor 10c, it is possible to prevent or suppress an erroneous operation when using the POS application, which is useful.

Further, when the browser execution unit 26a determines that the web page is a web page for operating the POS application, the browser execution unit 26a generates a screen 4b in which a message corresponding to a warning or caution and an input area corresponding to the message are arranged. Displayed by the display control unit 28.
Thus, when the application execution unit 30a is operated, a message corresponding to a warning or caution is displayed on the screen 4b by the browser, and an input operation to the check boxes 53 and 54 can be requested, and this operation has been performed. After confirming this, another operation can be executed. For this reason, when executing the POS application, the user can be surely and effectively alerted. Further, since a message corresponding to a warning or caution is not displayed when a web page that does not execute the POS application is downloaded, the convenience when the POS application is not used is not impaired.

Further, the display control unit 28 is configured to be able to display a plurality of screens 4a and 4b in an overlapping manner, and the browser execution unit 26a displays a screen 4b in which a message corresponding to a warning or caution and an input area corresponding to the message are arranged. When displaying, the screen 4a generated based on the downloaded web page is displayed in the background of the screen in an inactive state.
As a result, the screen 4b is displayed in an inactive state as the background while the screen 4b is displayed. For this reason, it is possible to notify the user that the message is related to the screen 4a and to clearly tell that the execution of the POS application is related to the input to the screen 4b.

The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied within the scope of the present invention.
For example, in the above-described embodiment, the tablet terminal 10 functions as a POS terminal using external devices such as the barcode scanner 12, the card reader 13, the cash drawer 14, and the customer display 15 connected to the printer 11. Although described as an example, the present invention is not limited to this, these devices are connected to the tablet terminal 10 by wire connection or wirelessly by Bluetooth or the like, and the tablet terminal 10 directly controls the device, The configuration may function as a POS terminal.
Moreover, in the said embodiment, when the tablet terminal 10 performed the function as a POS terminal, it demonstrated and demonstrated as an example the structure which accesses the POS server 17 and downloads a web page. The downloaded web page may be stored, and the stored web page may be read and executed in accordance with a user operation.
In the above-described embodiment, the control system 1 according to the present invention is applied to the POS system. However, the present invention is not limited to the POS system. Further, for example, each functional block shown in FIG. 2 can be arbitrarily realized by cooperation of hardware and software, and does not suggest a specific hardware configuration. Each device may execute various operations including the operation according to the flowchart of FIG. 5 by executing a program stored in an externally connected storage medium.
In the above-described embodiment, the browser execution unit 26a has been described as an example of a configuration that generates the screen 4b when it is determined that the web page is a web page that operates the POS application. A script for displaying the screen 4b may be included in the web page.

  DESCRIPTION OF SYMBOLS 1 ... Control system, 4a, 4b ... Screen (browser screen), 5 ... Communication line, 10 ... Tablet terminal (terminal device), 10a ... Touch panel, 10b ... Display panel (display screen), 10c ... Touch sensor, 11 ... Printer , 12 ... Barcode scanner, 13 ... Card reader, 17 ... POS server (external device), 26 ... Terminal-side control unit, 26a ... Browser execution unit (control unit), 28 ... Display control unit (display unit), 29 ... an input detection unit (input detection means), 35 ... a web application (POS application).

Claims (5)

Display means for displaying the screen on the display screen;
Input detection means for detecting an operation by a touch sensor disposed on the display screen;
Control means for downloading a POS application web page from an external device, generating a browser screen by a browser function based on the downloaded web page, and displaying the browser screen by the display means;
The control means, after detecting a specific operation by the input detection means in a state where the browser screen is displayed, operating the web page by the browser function;
A terminal device characterized by the above.   When the control means determines that the web page is the web page for operating a POS application, the browser screen is a screen on which a message corresponding to a warning or caution and an input area corresponding to the message are arranged. The terminal device according to claim 1, wherein the terminal device is generated and displayed by the display means. The display means is configured to be able to display a plurality of screens superimposed,
When the control means displays the message corresponding to the warning or caution and the screen on which the input area corresponding to the message is arranged, the browser screen generated based on the downloaded web page is in an inactive state. The terminal device according to claim 2, wherein the terminal device is displayed on a background of a screen. A control method for a terminal device comprising a display screen and a touch sensor arranged on the display screen,
Downloading a web page about the POS application from an external device;
Generating a browser screen by a browser function based on the downloaded web page and displaying it on the display screen;
A step of operating the web page by the browser function after detecting a specific operation by the touch sensor in a state where the browser screen is displayed;
A control method for a terminal device, comprising: A program executable by a computer having a display screen and a touch sensor arranged on the display screen,
The computer,
Display means for displaying the screen on the display screen;
Input detection means for detecting an operation by a touch sensor disposed on the display screen;
A web page related to the POS application is downloaded from an external device, a browser screen is generated by a browser function based on the downloaded web page, displayed by the display means, and the browser screen is displayed by the input detection means. Control means for operating the web page by the browser function after detecting a specific operation;
A program characterized by operating as

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