JP7404856B2 - Sales data processing system, sales data processing device, mobile terminal device and program - Google Patents

Description

The present invention relates to a sales data processing system, a sales data processing device, a mobile terminal device, and a program.

2. Description of the Related Art Conventionally, there is a sales data processing device (for example, an ECR (Electronic Cash Register)) that is installed in a store and used for accounting, and processes sales data of commercial transactions. In addition, in recent years, sales data processing systems that further include a mobile terminal device that performs a wireless communication connection with the sales data processing device have been used to perform accounting through cooperative operation between the sales data processing device and the mobile terminal device. Techniques for performing various types of processing are known. According to this sales data processing system, for example, a mobile terminal device receives an input operation related to accounting, generates sales data, transmits the sales data to a sales data processing device, and displays the sales data on a screen to the customer. It becomes possible to perform cooperative operations such as printing receipts and printing receipts.

In addition, by connecting the sales data processing device and the mobile terminal device via a relay communication device such as a wireless LAN (Local Area Network) access point, it is possible to connect multiple mobile terminals to one sales data processing device. Devices can be communicatively connected. Thereby, the sales data processing device can be shared by a plurality of users who each have a mobile terminal device.
Further, by using a relay communication device connected to an external network such as the Internet, data communication can be performed between the mobile terminal device or the sales data processing device and a server or the like on the network. This makes it possible, for example, to store and manage sales data on a server on the network, or to inquire about credit card information to a management server on the network.

In the sales data processing system, the sales data processing device usually operates using an external power source, and therefore, it is desirable to have a function that can hold the sales data being processed even if the power supply is stopped due to a power outage or the like. For example, Patent Document 1 states that when the external power supply to the sales data processing device is stopped, accounting processing is interrupted and sales data is saved in a predetermined save memory, and when the power supply is restored, A technique has been disclosed for restarting accounting processing using saved sales data.
However, when configuring a sales data processing system by combining a sales data processing device with a mobile terminal device, the sales data processing device must be equipped with a backup power source to continue operating even during periods when the power supply is cut off, and the sales data processing device and mobile terminal device It is more preferable to maintain the cooperative operation of the two.

Japanese Patent Application Publication No. 10-31790

However, when connecting the sales data processing device and the mobile terminal device via the relay communication device as described above, the power supply to the relay communication device is also stopped in the event of a power outage, and the sales data processing device and the mobile terminal device are connected via the relay communication device. Since the communication connection between the sales data processing device and the mobile terminal device is cut off, cooperative operation between the sales data processing device and the mobile terminal device becomes impossible. Furthermore, it is not easy to reliably and quickly restart the communication connection via the relay communication device when power supply is restored.
As described above, the conventional technology described above has a problem in that it is not possible to continue the cooperative operation of the sales data processing system during the period when the power supply is stopped.

An object of the present invention is to provide a sales data processing system, a sales data processing device, a mobile terminal device, and a program that can continue cooperative operations during a power supply suspension period.

In order to solve the above problems, the sales data processing system of the present invention includes:
a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
Equipped with
The sales data processing device and the mobile terminal device include:
When the first communication connection is disconnected due to the stop of external power supply to the relay communication device, starting a second communication connection by direct wireless communication not via the relay communication device,
After the start of the second communication connection, the sales data processing device detects restoration of power supply from the outside to the sales data processing device and the relay communication device, or restoration of power supply from the outside to the relay communication device. If so, the first communication connection via the relay communication device is resumed.

According to the present invention, cooperative operation can be continued during and before and after the power supply suspension period.

1 is a diagram showing the configuration of a sales data processing system. FIG. 2 is a block diagram showing the functional configuration of a sales data processing device. FIG. 2 is a block diagram showing the functional configuration of a mobile terminal device. FIG. 3 is a diagram showing the operation of the sales data processing system when power supply is stopped. FIG. 3 is a diagram showing the operation of the sales data processing system when power supply is restored. 3 is a flowchart showing a control procedure for communication connection switching processing.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a sales data processing system, a sales data processing device, a mobile terminal device, and a program of the present invention will be described below with reference to the drawings.

<Configuration of sales data processing system>
FIG. 1 is a diagram showing the configuration of a sales data processing system 1 of this embodiment.
The sales data processing system 1 includes a sales data processing device 10, a mobile terminal device 20, and an access point 30. The sales data processing system 1 is installed in stores such as individual stores, supermarkets, and restaurants, and is used for accounting purposes.

The sales data processing device 10 and the mobile terminal device 20 have a communication connection (first communication connection) via a wireless LAN, here Wi-Fi (registered trademark), via an access point 30 (relay communication device) (hereinafter simply referred to as “ Wi-Fi connection (also referred to as ``Wi-Fi connection'') is now possible. The sales data processing system 1 performs various processes such as registration of sales data of commercial transactions at stores through cooperative operations of the sales data processing device 10 and the mobile terminal device 20. In the following, the objects of commercial transactions such as products and services are collectively referred to as "products."
Furthermore, the access point 30 has a router function and can connect the sales data processing device 10 and the mobile terminal device 20 to an external network N (for example, the Internet). Therefore, the sales data processing device 10 and the mobile terminal device 20 can access external devices such as the sales data management server 2 and the card information management server 3 via the access point 30 and the network N. Note that a configuration may be adopted in which only one of the sales data processing device 10 and the mobile terminal device 20 accesses the external device.

The mobile terminal device 20 is a terminal device owned by a user such as a store clerk, and is, for example, a tablet terminal, a smartphone, or the like. The mobile terminal device 20 receives an input operation from the user to specify the details of the transaction at the time of checkout, and generates and registers (stores) sales data including information such as the name, number, and price of the products to be sold. The mobile terminal device 20 transmits the registered sales data to the sales data processing device 10 or via the access point 30 to the sales data management server 2 for managing the sales data. In addition, when making a payment using a credit card, the mobile terminal device 20 also performs data communication with a card information management server 3 of a credit card company or the like via the access point 30 in order to inquire about credit card information, etc. conduct.
The mobile terminal device 20 can be operated using a battery 26 (internal power source) (see FIG. 3).

The sales data processing device 10 is an ECR installed at a cash register in a store. The sales data processing device 10 displays accounting information on the customer display section 152 or outputs a receipt from the printing section 16, depending on the contents of the sales data received from the access point 30. In addition, when making a payment in cash, the drawer 17 (see FIG. 2) is opened and cash is disbursed and paid. Furthermore, the sales data processing device 10 is also capable of generating and registering sales data by accepting an input operation from a user who specifies the details of the transaction on behalf of the mobile terminal device 20 at the time of transaction.
The sales data processing device 10 operates by receiving power from an external source. Furthermore, the sales data processing device 10 is equipped with a backup power source 19 (see FIG. 2), so that operation can be continued using the backup power source 19 even if power supply from the outside is stopped.

The access point 30 is a device that connects devices (in this embodiment, the sales data processing device 10 and the mobile terminal device 20) that perform wireless communication using Wi-Fi, or connects the devices to the network N. It is. A plurality of Wi-Fi devices can be connected to the access point 30. Therefore, by using the access point 30, a plurality of Wi-Fi devices can be interconnected. Therefore, a plurality of mobile terminal devices 20 can be communicatively connected to one sales data processing device 10. That is, although only one mobile terminal device 20 is depicted in FIG. 1, the sales data processing system 1 includes a plurality of mobile terminal devices 20, each of which is communicatively connected to the sales data processing device 10 via the access point 30. You may be prepared.
The access point 30 operates by receiving power from an external source.

Instead of the communication connection using Wi-Fi, the sales data processing device 10 and the mobile terminal device 20 can also perform a communication connection (second communication connection) using direct wireless communication not via the access point 30. It has become. As the wireless communication in this case, various types of short-range wireless communication can be used, and in this embodiment, BLE (Bluetooth (registered trademark) Low Energy)) is used. A communication connection using BLE (hereinafter also simply referred to as "BLE connection") has a slower communication speed and a shorter connectable distance than a Wi-Fi connection, but has the advantage of lower power consumption than a Wi-Fi connection. BLE corresponds to a "second communication method".

With BLE connection, multiple slave devices can be connected to one master device. When viewed from the slave device side, each slave device can perform BLE connection to only one master device. In this embodiment, since the mobile terminal device 20 corresponds to a master device and the sales data processing device 10 corresponds to a slave device, the sales data processing device 10 can perform BLE connection with only one mobile terminal device 20. can.

In this way, when a BLE connection is used, one sales data processing device 10 cannot be shared by multiple mobile terminal devices 20, and data communication with an external server via the network N cannot be performed. I can't. For this reason, Wi-Fi connection via the access point 30 is normally used, and BLE connection is possible when the external power supply to the sales data processing device 10 and the access point 30 is stopped due to a power outage, etc., and Wi-Fi connection is used. It is used as a temporary alternative communications connection in the event that the network is disconnected. Operations related to switching between Wi-Fi connection and BLE connection will be described in detail later.

<Configuration of sales data processing device>
FIG. 2 is a block diagram showing the functional configuration of the sales data processing device 10.
The sales data processing device 10 includes a CPU 11 (Central Processing Unit) (computer), a RAM 12 (Random Access Memory), a storage unit 13, a communication unit 14 having a Wi-Fi communication unit 141 and a BLE communication unit 142, and an operation It includes a display section 151, a customer display section 152, a printing section 16, a drawer 17, a power supply section 18 having an ADC 181 (analog-to-digital conversion circuit) and a detection circuit 182, a backup power supply 19, a bus B1, etc. There is. Each part of the sales data processing device 10 is connected by a bus B1.

The CPU 11 is a processor that controls each part of the sales data processing device 10. The CPU 11 reads out a program 131 stored in the storage unit 13, expands it to the RAM 12, and executes the program 131 to perform various arithmetic processing. By executing the program 131, the CPU 11 detects restoration of power supply based on the detection signal received from the processing means for generating sales data, the communication control means for controlling the operation of the communication unit 14, and the detection circuit 182. It functions as a power restoration detection means.

The RAM 12 provides a working memory space for the CPU 11 and stores temporary data. RAM 12 may include nonvolatile memory. Sales data received from the mobile terminal device 20 or generated by the sales data processing device 10 is temporarily stored in the RAM 12 .

The storage unit 13 stores a program 131 executed by the CPU 11, various setting data, and the like. The program 131 is stored in the storage unit 13 in the form of a computer-readable program code. As the storage unit 13, a storage device that does not require a power source to hold data, such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), is used.
The setting data stored in the storage unit 13 includes identification data for identifying and specifying the mobile terminal device 20, access point 30, external server, etc. with which the communication unit 14 performs wireless communication.

The Wi-Fi communication unit 141 and the BLE communication unit 142 are communication modules each having an antenna, a modulation/demodulation circuit, a signal processing circuit, and the like. The Wi-Fi communication unit 141 communicates with the access point 30 (therefore, with the communication unit 24 of the mobile terminal device 20 (see FIG. 3) via the access point 30, in accordance with communication standards related to wireless communication by Wi-Fi). wireless data communication between The BLE communication unit 142 performs wireless data communication with the communication unit 24 of the mobile terminal device 20 in accordance with communication standards related to wireless communication using BLE.

The operation display unit 151 includes a display unit such as an LCD (Liquid Crystal Display) or an organic EL (Electro-Luminescence) display, and a touch panel provided to overlap the display screen of the display unit. The operation display unit 151 receives, for example, an input operation from the user to specify the above-mentioned transaction details at the time of accounting.
Note that the operation display section 151 may be further provided with an input device other than the touch panel, such as a keyboard or a mouse.

The customer display unit 152 is configured with an LCD, an organic EL display, or the like, and displays various information such as product names and prices to customers who are facing the user who operates the sales data processing device 10.

The printing unit 16 prints and outputs receipts, journals, etc. on paper according to control signals output from the CPU 11.

The drawer 17 is a drawer for storing money, gift certificates, etc., and has an opening mechanism that opens under the control of the CPU 11.

The power supply unit 18 is connected to an external AC power supply via a power plug 183 shown in FIG. It is supplied to each part of the sales data processing device 10 including the display section 152, the printing section 16, and the drawer 17. In FIG. 2, the description of power supply paths from the power supply section 18 to each section is omitted.
The power supply section 18 includes an ADC 181 that converts an alternating current voltage from an AC power source into a direct current voltage, and a detection circuit 182 that detects the state of power supply from the AC power source. The detection circuit 182 detects the power supply state and outputs a detection signal related to the detection result to the CPU 11. For example, the detection circuit 182 outputs a power failure detection signal when detecting a stop in power supply from the AC power source, and outputs a power restoration detection signal when detecting restoration of power supply from the AC power source. Based on this power restoration detection signal, the CPU 11 can detect restoration of power supply that has been stopped due to a power outage or the like.

The standby power supply 19 temporarily supplies power to predetermined components of the sales data processing device 10 in place of the power supply section 18 when power supply from an external AC power source stops. As the backup power source 19, for example, a dry battery or a rechargeable battery can be used. The backup power supply 19 of this embodiment can supply power to the CPU 11, RAM 12, storage section 13, BLE communication section 142, operation display section 151, customer display section 152, printing section 16, drawer 17, and detection circuit 182. It is set in. Therefore, if the power supply from the AC power source is stopped due to a power outage or the like, the sales data processing device 10 can be operated for a certain period of time using the power from the backup power source 19. For example, the data stored in the RAM 12 can be held using the power of the backup power source 19, and the BLE communication unit 142 can establish a BLE communication connection with the mobile terminal device 20. In the following, the act of supplying power from the standby power source 19 to each part of the sales data processing device 10 to maintain operation will also be referred to as "backup."
Note that power is not supplied from the backup power source 19 to the Wi-Fi communication unit 141 because the access point 30 will not operate in the event of a power outage, as will be described later. This is because the Wi-Fi connection with 30 cannot be established (there is no need to do so). However, the present invention is not limited to this, and power may be supplied to the Wi-Fi communication unit 141 from the backup power source 19. In this way, in a situation where only the power supply to the sales data processing device 10 is stopped and power is being supplied to the access point 30, such as when the power plug 183 is unintentionally disconnected, the access point 30 The Wi-Fi connection can be continued.

<Configuration of mobile terminal device>
FIG. 3 is a block diagram showing the functional configuration of the mobile terminal device 20.
The mobile terminal device 20 includes a CPU 21 (computer), a RAM 22, a storage unit 23, a communication unit 24 having a Wi-Fi communication unit 241 and a BLE communication unit 242, an operation display unit 25, a battery 26, and a bus B2. It is equipped with such things as Each part of the mobile terminal device 20 is connected by a bus B2.

The CPU 21 is a processor that controls each part of the mobile terminal device 20. The CPU 21 reads out a program 231 stored in the storage unit 23, expands it to the RAM 22, and executes the program 231 to perform various calculation processes. By executing the program 231, the CPU 21 functions as a processing means for generating sales data, a communication control means for controlling the operation of the communication section 24, and the like.

The RAM 22 provides a working memory space for the CPU 21 and stores temporary data. RAM 22 may include nonvolatile memory. Sales data generated by the mobile terminal device 20 is temporarily stored in the RAM 22 .

The storage unit 23 stores a program 231 executed by the CPU 21, various setting data, and the like. The program 231 is stored in the storage unit 23 in the form of a computer-readable program code. As the storage unit 23, for example, an HDD or an SSD is used.
The setting data stored in the storage unit 23 includes identification data for identifying and specifying the sales data processing device 10, access point 30, external server, etc. with which the communication unit 24 performs wireless communication. . One of the identification data is unique ID data indicating that the packet is from the sales data processing device 10, which is included in a BLE advertising packet to be described later.

The Wi-Fi communication unit 241 and the BLE communication unit 242 are communication modules each having an antenna, a modulation/demodulation circuit, a signal processing circuit, and the like. The Wi-Fi communication unit 241 communicates wirelessly with the access point 30 (therefore, with the communication unit 14 of the sales data processing device 10 via the access point 30) in accordance with communication standards related to wireless communication using Wi-Fi. Perform data communication. The BLE communication unit 242 performs wireless data communication with the communication unit 14 of the sales data processing device 10 in accordance with communication standards related to wireless communication using BLE.

The operation display section 25 includes a display section such as an LCD or an organic EL display, and a touch panel provided to overlap the display screen of the display section. The operation display unit 25 receives, for example, an input operation from the user to specify the above-mentioned transaction details at the time of accounting. Note that the operation display section 25 may be further provided with an input device other than the touch panel that accepts input operations from the user.

The battery 26 supplies power to each part of the mobile terminal device 20 including the CPU 21 , the RAM 22 , the storage section 23 , the communication section 24 , and the operation display section 25 . As the battery 26, for example, a rechargeable battery can be used, but the present invention is not limited to this, and a disposable battery such as a dry battery may be used. In FIG. 3, the power supply paths from the battery 26 to each part are omitted.
Since the mobile terminal device 20 operates with the power supplied from the battery 26 in this manner, it can continue to operate even if the power supply from the AC power source is stopped due to a power outage or the like.

<Communication connection switching operation in the sales data processing system>
Next, the operation of the sales data processing system 1 will be explained, focusing on the operation of switching the communication connection between the sales data processing device 10 and the mobile terminal device 20.

As shown in FIG. 1, in the sales data processing system 1, when the sales data processing device 10 and the access point 30 are supplied with power from an external AC power source, the sales data processing device 10 and the mobile terminal The device 20 performs a Wi-Fi connection via an access point 30.

In this state, if the external power supply to the sales data processing device 10 and the access point 30 is stopped due to a power outage, etc., the sales data processing device 10 continues to operate with backup from the backup power source 19, while the access point 30 Stop operation. Therefore, the Wi-Fi connection between the sales data processing device 10 and the mobile terminal device 20 is disconnected.
At the time of a power outage, the external power supply to the sales data processing device 10 and the access point 30 is simultaneously stopped. Therefore, the sales data processing device 10 can detect the stoppage of external power supply to the access point 30 by switching to operation using the backup power source 19, and can also detect the termination of the external power supply to the access point 30. - It can be determined that the Fi connection has been disconnected.

FIG. 4 is a diagram showing the operation of the sales data processing system 1 when power supply is stopped.
When the sales data processing device 10 detects the stoppage of power supply from the outside, as shown in FIG. Start a connection (second communication connection). By establishing a direct communication connection using BLE during a power outage, the cooperative operation of the sales data processing device 10 and the mobile terminal device 20 can be continued.
After starting the BLE connection, the sales data processing device 10 monitors the status of external power supply.

FIG. 5 is a diagram showing the operation of the sales data processing system 1 when power supply is restored.
When the power supply is restored, the sales data processing device 10 switches from operating using the backup power source 19 to operating using external power supply. Additionally, the access point 30 is activated and becomes ready for Wi-Fi connection.
The sales data processing device 10 recognizes that the power supply to the access point 30 has been restored by switching its own device to operation using external power supply, that is, the access point 30 has been restored to a state where Wi-Fi connection is possible. can be detected. In response to this detection, the sales data processing device 10 starts a Wi-Fi connection with the access point 30, as shown in FIG.
In parallel with this, the sales data processing device 10 transmits predetermined power restoration notification data that notifies the restoration of power supply to the mobile terminal device 20 via the BLE connection.
By receiving this power restoration notification data, the mobile terminal device 20 can immediately detect restoration of power supply to the sales data processing device 10 and the access point 30. In response to receiving the power restoration notification data, the mobile terminal device 20 starts a Wi-Fi connection with the access point 30 and then establishes a Wi-Fi connection with the sales data processing device 10 via the access point 30. resume.
Further, when the Wi-Fi connection is restarted after the power supply is restored, the sales data processing device 10 and the mobile terminal device 20 terminate the BLE connection. Note that only one of the sales data processing device 10 and the mobile terminal device 20 may perform processing for terminating the BLE connection.
As a result, the sales data processing system 1 returns to the normal communication connection state shown in FIG.

<Control procedure for communication connection switching process>
Next, a detailed control procedure for communication connection switching processing for causing the sales data processing system 1 to perform the above communication connection switching operation will be described.
FIG. 6 is a flowchart showing a control procedure by the CPU 11 and the CPU 21 in communication connection switching processing. In FIG. 6, communication connection switching processing on the sales data processing device 10 side (processing executed by the CPU 11) and communication connection switching processing on the mobile terminal device 20 side (processing executed by the CPU 21) are shown together. At the start of the communication connection switching process, it is assumed that the sales data processing device 10 and the mobile terminal device 20 are connected via Wi-Fi as shown in FIG.

When the communication connection switching process is started, the CPU 11 of the sales data processing device 10 determines whether or not a stop in the power supply from the AC power source has been detected (step S101). Here, the CPU 11 detects the stoppage of power supply in response to receiving a power outage detection signal from the detection circuit 182. If it is determined that the stoppage of power supply has not been detected (“NO” in step S101), the CPU 11 executes the process in step S101 again.

If it is determined that a stop in the power supply has been detected (“YES” in step S101), the CPU 11 switches the power supplied to each part of the sales data processing device 10 to power from the backup power source 19 (step S102). ).

When switching to power from the backup power source 19, the CPU 11 performs advertisement to start BLE communication with the mobile terminal device 20 (step S103). That is, the CPU 11 causes the BLE communication unit 142 to transmit a predetermined advertising packet including a unique ID indicating that the packet is from the sales data processing device 10 .

When the communication connection switching process is started, the CPU 21 of the mobile terminal device 20 determines whether the BLE communication unit 242 has received the advertising packet transmitted from the sales data processing device 10 (step S201). Note that the process in step S201 may be started when it is detected that the Wi-Fi connection between the sales data processing device 10 and the access point 30 has been disconnected due to the stoppage of power supply. If it is determined that an advertising packet has not been received (“NO” in step S201), the CPU 21 executes the process in step S201 again.

If it is determined that an advertising packet has been received (“YES” in step S201), the CPU 21 performs a pairing process with the sales data processing device 10, and causes the BLE communication unit 242 to start a BLE connection (step S201). S202). Therefore, after the end of step S202, the sales data processing device 10 and the mobile terminal device 20 are in a state of performing BLE connection. The operating state of the sales data processing system 1 while performing this BLE connection corresponds to FIG. 4.

When the wireless communication connection using BLE is started, the CPU 11 of the sales data processing device 10 determines whether restoration of power supply is detected (step S104). Here, the CPU 11 detects restoration of power supply in response to reception of a power restoration detection signal from the detection circuit 182. If it is determined that restoration of power supply has not been detected (“NO” in step S104), the CPU 11 executes the process of step S104 again.

If it is determined that restoration of power supply has been detected (“YES” in step S104), the CPU 11 switches the power supplied to each part of the sales data processing device 10 to power from an external AC power source (step S105). Further, the CPU 11 causes the BLE communication unit 142 to transmit power restoration notification data to notify the restoration of power supply to the mobile terminal device 20 via BLE communication. In parallel with this, the CPU 11 causes the Wi-Fi communication unit 141 to start a Wi-Fi connection with the access point 30 (step S106). The operating state of the sales data processing system 1 at the time of executing step S106 corresponds to FIG. 5.

On the other hand, when the process of step S202 is completed and the BLE connection is started, the CPU 21 of the mobile terminal device 20 determines whether power restoration notification data has been received from the sales data processing device 10 (step S203). If it is determined that the power restoration notification data has not been received (“NO” in step S203), the CPU 21 executes the process of step S203 again.

If it is determined that power restoration notification data has been received (“YES” in step S203), the CPU 21 causes the Wi-Fi communication unit 241 to start a Wi-Fi connection with the access point 30, and then transmits the sales data. The Wi-Fi connection with the processing device 10 via the access point 30 is restarted. Further, the CPU 21 disconnects the BLE connection with the sales data processing device 10 (step S204). Therefore, after the end of step S204, the sales data processing device 10 and the mobile terminal device 20 are in a Wi-Fi connected state, as shown in FIG.

When the Wi-Fi connection is restarted, the CPU 21 sends all the sales data generated during the power outage period that could not be sent to the sales data management server 2 due to the disconnection of the Wi-Fi connection to the sales data management server 2. 2 (step S205).

When the process of step S205 is completed, the CPU 21 determines whether or not the operation of the sales data processing system 1 is to be continued (step S206), and if it is determined that the operation of the sales data processing system 1 is to be continued, (“YES” in step S206), the process returns to step S201. If it is determined that the operation of the sales data processing system 1 has ended (“NO” in step S206), the CPU 21 ends the communication connection switching process.

Further, when the process of step S106 is completed, the CPU 11 of the sales data processing device 10 determines whether or not the operation of the sales data processing system 1 is to be continued (step S107), and the operation of the sales data processing system 1 is to be continued. If it is determined that the process is performed ("YES" in step S107), the process returns to step S101. If it is determined that the operation of the sales data processing system 1 has ended (“NO” in step S107), the CPU 11 ends the communication connection switching process.

In addition, in the flowchart of FIG. 6, the BLE connection is disconnected in the process of step S204, but this is not limited to this, and even after the power supply is restored, the BLE connection may be continued for a certain period of time without being disconnected immediately, or the BLE connection and the A Wi-Fi connection may also be used. However, since the communication speed of Wi-Fi connection is faster than that of BLE connection, efficient data communication can be performed by preferentially using Wi-Fi connection. For example, the transmission of print data (data to be printed on receipts in the sales data processing device 10) that was being executed using a BLE connection may be continued for a certain period of time even after power is restored, and then transmitted via a Wi-Fi connection at a switchable timing. You may also switch to sending. Furthermore, large-capacity data including image data and the like may be transmitted via Wi-Fi connection, and other small-capacity data may be transmitted in parallel via BLE communication.
In order to perform such an operation, in the process of step S204, the CPU 21 of the mobile terminal device 20 sets its own device to perform communication processing by preferentially using the Wi-Fi connection over the BLE connection. Switch. This switching of the settings of the own device may be performed in the sales data processing device 10 instead of or in addition to the mobile terminal device 20.

As described above, the sales data processing system 1 according to the present embodiment is capable of continuing operation using the backup power source 19 even when the external power supply is stopped, and is capable of performing sales data processing for processing sales data of commercial transactions. A mobile terminal device 20 that can be operated by a battery 26 and performs a Wi-Fi connection as a first communication connection with the sales data processing device 10 via an access point 30, The sales data processing device 10 and the mobile terminal device 20 are configured to perform a second process using direct wireless communication not via the access point 30 when the external power supply to the access point 30 is stopped and the Wi-Fi connection is disconnected. A BLE connection as a communication connection is started, and when the sales data processing device 10 detects restoration of power supply after the start of the BLE connection, the Wi-Fi connection via the access point 30 is restarted.
In this way, by establishing a Wi-Fi connection via the access point 30 during normal times, one sales data processing device 10 and a plurality of mobile terminal devices 20 can be connected for communication at the same time, and the access point 30, data communication can be performed between the sales data processing device 10 and the mobile terminal device 20 and an external server or the like.
Further, according to the above configuration, even if the power supply to the access point 30 is stopped due to a power outage or the like and the Wi-Fi connection is disconnected, the sales data processing device 10 and the mobile terminal device 20 can be connected via the BLE connection. Communication connections can be maintained. Therefore, even in the event of a power outage, the sales data processing device 10 and the mobile terminal device 20 can perform cooperative operations, and user convenience can be improved. Further, since there is no need to connect an uninterruptible power supply to the access point 30 to perform backup in the event of a power outage, the cost of introducing an uninterruptible power supply can be reduced.
Furthermore, by restarting the Wi-Fi connection when the sales data processing device 10 detects that the power supply has been restored, it is possible to reliably and quickly shift from the BLE connection to the Wi-Fi connection after the power is restored. Therefore, the cooperative operation of the sales data processing device 10 and the mobile terminal device 20 can be continued before the power outage, during the power outage period, and after the power outage.

In addition, in response to the detection of the restoration of power supply, the sales data processing device 10 starts a communication connection with the access point 30, and transmits power restoration notification data to the mobile terminal device 20 notifying the restoration of power supply. In response to receiving the power restoration notification data, the mobile terminal device 20 resumes the Wi-Fi connection with the sales data processing device 10 via the access point 30. In this way, by transmitting the power restoration notification data via the BLE connection, it is possible to reliably and quickly notify the mobile terminal device 20 of the restoration of power supply. Furthermore, by making the Wi-Fi connection in response to receiving the power restoration notification data, the mobile terminal device 20 can quickly resume the Wi-Fi connection after the power supply is restored.

Furthermore, the sales data processing device 10 detects the stoppage of power supply to the access point 30 due to the self-device switching to operation using the backup power source 19, and the sales data processing device 10 switches from operating using the backup power source 19 to external power supply. Restoration of the power supply to the access point 30 is detected by switching to the power supply operation. Thereby, in the event of a power outage, it is possible to easily detect the stoppage of power supply to the access point 30 and the disconnection of the Wi-Fi connection with the access point 30 without using the Wi-Fi communication unit 141. In addition, when the power is restored, one detection process that determines that the sales data processing device 10 has switched to operation using an external power source allows the sales data processing device to obtain power from the external power source that enables Wi-Fi connection. It is possible to ensure at once that the operation of the access point 30 has been restored (it can be considered that the access point 30 has been restored).

Further, when the Wi-Fi connection is restarted after the power supply is restored, at least one of the sales data processing device 10 and the mobile terminal device 20 terminates the BLE connection. According to this, it is possible to reduce power consumption while avoiding interference between a Wi-Fi connection and a BLE connection that use overlapping frequency bands.

In addition, at least one of the sales data processing device 10 and the mobile terminal device 20 communicates by preferentially using the Wi-Fi connection over the BLE connection when the Wi-Fi connection is restarted after the power supply is restored. Switch the settings of the own device to perform the process. According to this, flexible and efficient data communication can be performed while using both BLE connection and Wi-Fi connection.

Further, the second communication connection is performed using BLE as a second communication method, which consumes less power than Wi-Fi as the first communication method. According to this, the power consumption of the backup power source 19 and the battery 26 can be suppressed, and the operating time of the sales data processing device 10 and the mobile terminal device 20 during a power outage can be extended.

Further, the access point 30 is connected to an external network N, and when a Wi-Fi connection is made as a first communication connection, at least one of the sales data processing device 10 and the mobile terminal device 20 is connected to the external network N. , performs data communication with an external device connected to the network N via the access point 30. According to this, data communication can be performed with a server or the like provided outside the sales data processing system via the access point 30 and the network N.

Furthermore, when the external power supply to the access point 30 is stopped and the Wi-Fi connection is disconnected, the sales data processing device 10 according to the present embodiment can connect the access point 30 to the mobile terminal device 20. When a BLE connection without intermediary is started, and restoration of power supply is detected after the start of the BLE connection, a Wi-Fi connection with the mobile terminal device 20 via the access point 30 is restarted. According to this, when the power supply is stopped, it is possible to shift from the Wi-Fi connection to the BLE connection and continue the cooperative operation of the sales data processing device 10 and the mobile terminal device 20. Wi-Fi connection can be quickly resumed.

Furthermore, when the external power supply to the access point 30 is stopped and the Wi-Fi connection is disconnected, the mobile terminal device 20 according to the present embodiment can connect the access point 30 to the sales data processing device 10. If the sales data processing device 10 detects that the power supply has been restored after starting the BLE connection without using the BLE connection, the Wi-Fi connection with the sales data processing device 10 via the access point 30 is established. resume. According to this, when the power supply is stopped, it is possible to shift from the Wi-Fi connection to the BLE connection and continue the cooperative operation of the sales data processing device 10 and the mobile terminal device 20. Wi-Fi connection can be quickly resumed.

Further, the program 131 according to the present embodiment causes the CPU 11, which is a computer provided in the sales data processing device 10, to perform the following operations when the external power supply to the access point 30 is stopped and the Wi-Fi connection is disconnected. A function to start a BLE connection with the mobile terminal device 20 without going through the access point 30, and a function to start the access point 30 with the mobile terminal device 20 when restoration of power supply is detected after starting the BLE connection. A function to resume Wi-Fi connection via the Internet. According to this, when the power supply is stopped, it is possible to shift from the Wi-Fi connection to the BLE connection and continue the cooperative operation of the sales data processing device 10 and the mobile terminal device 20. Wi-Fi connection can be quickly resumed.

Further, the program 231 according to the present embodiment causes the CPU 21, which is a computer provided in the mobile terminal device 20, to generate sales information when the external power supply to the access point 30 is stopped and the Wi-Fi connection is disconnected. A function to start a BLE connection with the data processing device 10 without going through the access point 30, and a function to connect the sales data processing device 10 when the sales data processing device 10 detects restoration of power supply after starting the BLE connection. A function of restarting the Wi-Fi connection via the access point 30 between the two is realized. According to this, when the power supply is stopped, it is possible to shift from the Wi-Fi connection to the BLE connection and continue the cooperative operation of the sales data processing device 10 and the mobile terminal device 20. Wi-Fi connection can be quickly resumed.

Note that the description in the above embodiment is an example of the sales data processing system, sales data processing device, mobile terminal device, and program according to the present invention, and is not limited thereto.
For example, the communication method for the second communication connection is not limited to BLE, but may be any communication method that uses direct wireless communication. For example, wireless LAN ad hoc mode, Wi-Fi Direct (registered trademark), or Bluetooth may be used.

Furthermore, in the embodiment described above, the mobile terminal device 20 restarts the Wi-Fi connection with the access point 30 and the sales data processing device 10 in response to receiving the power restoration notification data. The present invention is not limited to this, and a beacon transmitted from the access point 30 may be detected when the power is restored, a Wi-Fi connection with the access point 30 may be started, and a Wi-Fi connection with the sales data processing device 10 may be further attempted. .

Furthermore, the sales data processing device 10 does not necessarily need to be equipped with the backup power supply 19, but may be configured to have an external uninterruptible power supply as a backup power supply, and receive power from the uninterruptible power supply in the event of a power outage. It may be as follows.

Further, the communication connection between the sales data processing device 10 and the access point 30 is not limited to wireless communication, but may be a wired communication connection.

Further, in the embodiment described above, the sales data processing system 1 has been described using an example in which the access point 30 is provided as a relay communication device, but the access point 30 is not limited to this, and the access point 30 may be provided outside the sales data processing system 1. You can leave it there. That is, the sales data processing system 1 may include a sales data processing device 10 and a mobile terminal device 20 that perform Wi-Fi connection via an access point 30 provided outside the sales data processing system 1.

Further, in the case where the power supply to the access point 30 is stopped while the power supply to the sales data processing device 10 is maintained (for example, when the power plug of the access point 30 is unintentionally disconnected), the above embodiment A similar communication connection switching operation may be performed. In this case, the sales data processing device 10 detects that the power supply to the access point 30 is stopped due to the Wi-Fi connection with the access point 30 being disconnected, and uses this detection as an opportunity to transmit an advertising packet. BLE connection with the mobile terminal device 20 is started. Thereafter, the sales data processing device 10 continuously tries to restart the Wi-Fi connection with the access point 30, and detects that the power supply has been restored when the Wi-Fi connection has been restarted. The operation after detecting restoration of power supply is the same as in the above embodiment.

Further, the detailed configuration and detailed operation of each component of the sales data processing system 1, the sales data processing device 10, and the mobile terminal device 20 in the above embodiments can be changed as appropriate without departing from the spirit of the present invention. Of course it is.

Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalent ranges thereof.
Below, the invention described in the claims first attached to the application of this application will be added. The claim numbers listed in the supplementary notes are as in the claims originally attached to the request for this application.
[Additional note]
<Claim 1>
a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
Equipped with
The sales data processing device and the mobile terminal device include:
When the first communication connection is disconnected due to the stop of external power supply to the relay communication device, starting a second communication connection by direct wireless communication not via the relay communication device,
Sales data characterized in that when the sales data processing device detects restoration of the power supply after starting the second communication connection, the first communication connection via the relay communication device is restarted. processing system.
<Claim 2>
The sales data processing device starts a communication connection with the relay communication device in response to the detection of the restoration of the power supply, and transmits power restoration notification data notifying the restoration of the power supply to the mobile terminal. transmitting to a device via the second communication connection;
2. The mobile terminal device restarts the first communication connection with the sales data processing device via the relay communication device in response to receiving the power restoration notification data. Sales data processing system described in.
<Claim 3>
The sales data processing device includes:
detecting the stoppage of the power supply to the relay communication device due to the self-device switching to operation using the backup power source;
3. The relay communication device detects restoration of the power supply to the relay communication device when the device switches from operation using the backup power supply to operation using external power supply. Sales data processing system.
<Claim 4>
Claim 1, wherein when the first communication connection is restarted after the power supply is restored, at least one of the sales data processing device and the mobile terminal device terminates the second communication connection. The sales data processing system according to any one of items 3 to 3.
<Claim 5>
At least one of the sales data processing device and the mobile terminal device connects the first communication connection to the second communication connection when the first communication connection is restarted after the power supply is restored. 4. The sales data processing system according to claim 1, wherein the sales data processing system switches settings of its own device so as to perform communication processing using the sales data processing system preferentially.
<Claim 6>
The first communication connection is performed using a first communication method,
Sales data processing according to any one of claims 1 to 5, wherein the second communication connection is performed using a second communication method that consumes less power than the first communication method. system.
<Claim 7>
The relay communication device is a wireless communication access point connected to an external network,
When the first communication connection is established, at least one of the sales data processing device and the mobile terminal device performs data communication with an external device connected to the network via the relay communication device. The sales data processing system according to any one of claims 1 to 6.
<Claim 8>
a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A sales data processing device used in a sales data processing system comprising:
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established between the mobile terminal device and the mobile terminal device by direct wireless communication without going through the relay communication device. Start a communication connection,
Sales characterized in that when restoration of the power supply is detected after the start of the second communication connection, the first communication connection with the mobile terminal device via the relay communication device is restarted. Data processing equipment.
<Claim 9>
a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A mobile terminal device used in a sales data processing system comprising:
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established through direct wireless communication with the sales data processing device without going through the relay communication device. Initiate a communication connection for
If the sales data processing device detects restoration of the power supply after starting the second communication connection, the first communication connection is established with the sales data processing device via the relay communication device. A mobile terminal device characterized by restarting.
<Claim 10>
a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A computer installed in a sales data processing device used in a sales data processing system equipped with
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established between the mobile terminal device and the mobile terminal device by direct wireless communication without going through the relay communication device. the ability to initiate a communication connection;
a function of restarting the first communication connection with the mobile terminal device via the relay communication device when restoration of the power supply is detected after the start of the second communication connection;
A program characterized by realizing the following.
<Claim 11>
a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A computer installed in a mobile terminal device used in a sales data processing system equipped with
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established through direct wireless communication with the sales data processing device without going through the relay communication device. the ability to initiate communication connections for
If the sales data processing device detects restoration of the power supply after starting the second communication connection, the first communication connection is established with the sales data processing device via the relay communication device. The ability to resume
A program characterized by realizing the following.

1 Sales data processing system 2 Sales data management server (external device)
3 Card information management server (external device)
10 Sales data processing device 11 CPU
12 RAM
13 Storage section 131 Program 14 Communication section 141 Wi-Fi communication section 142 BLE communication section 151 Operation display section 152 Customer display section 16 Printing section 17 Drawer 18 Power supply section 182 Detection circuit 183 Power plug 19 Backup power supply 20 Mobile terminal device 21 CPU
22 RAM
23 Storage unit 231 Program 24 Communication unit 241 Wi-Fi communication unit 242 BLE communication unit 25 Operation display unit 26 Battery (internal power supply)
30 Access point (relay communication device)
B1, B2 bus N network

Claims (12)

a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
Equipped with
The sales data processing device and the mobile terminal device include:
When the first communication connection is disconnected due to the stop of external power supply to the relay communication device, starting a second communication connection by direct wireless communication not via the relay communication device,
After the start of the second communication connection, the sales data processing device detects restoration of power supply from the outside to the sales data processing device and the relay communication device, or restoration of power supply from the outside to the relay communication device. The sales data processing system is characterized in that the first communication connection via the relay communication device is restarted in the case where the first communication connection is resumed via the relay communication device. The sales data processing device performs communication with the relay communication device in response to detection of restoration of power supply from the outside to the sales data processing device and the relay communication device, or restoration of power supply from the outside to the relay communication device. and transmits power restoration notification data to the mobile terminal device notifying restoration of power supply from the outside to the sales data processing device and the relay communication device or from the outside to the relay communication device. via the second communication connection;
2. The mobile terminal device restarts the first communication connection with the sales data processing device via the relay communication device in response to receiving the power restoration notification data. Sales data processing system described in. The sales data processing device includes:
detecting a stop in the external power supply to the self-device, and detecting a stop in the external power supply to the self-device and the relay communication device due to the self-device switching to operation using the backup power source;
Claim 1, wherein the device detects restoration of external power supply to the device and the relay communication device when the device switches from operation using the backup power source to operation using power supplied from an external source. Or the sales data processing system described in 2. The sales data processing device includes:
Detecting a stop in external power supply to the relay communication device due to disconnection of the communication connection between the device itself and the relay communication device;
The sales data processing system according to claim 1 or 2, wherein the sales data processing system detects restoration of external power supply to the relay communication device when the communication connection between the device itself and the relay communication device is restarted. . When the first communication connection is resumed after restoration of power supply from the outside to the sales data processing device and the relay communication device, or restoration of power supply from the outside to the relay communication device , the sales data processing device 5. The sales data processing system according to claim 1, wherein at least one of the mobile terminal device and the mobile terminal device terminates the second communication connection. At least one of the sales data processing device and the mobile terminal device is configured to perform the first operation after restoration of external power supply to the sales data processing device and the relay communication device, or after restoration of external power supply to the relay communication device. A claim characterized in that, when the communication connection is restarted, the settings of the own device are switched so that communication processing is performed by preferentially using the first communication connection over the second communication connection. The sales data processing system according to any one of items 1 to 4 . The first communication connection is performed using a first communication method,
The sales data processing according to any one of claims 1 to 6 , wherein the second communication connection is performed using a second communication method that consumes less power than the first communication method. system. The relay communication device is a wireless communication access point connected to an external network,
When the first communication connection is established, at least one of the sales data processing device and the mobile terminal device performs data communication with an external device connected to the network via the relay communication device. The sales data processing system according to any one of claims 1 to 7 . a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A sales data processing device used in a sales data processing system comprising:
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established between the mobile terminal device and the mobile terminal device by direct wireless communication without going through the relay communication device. Start a communication connection,
When detecting restoration of power supply from the outside to the sales data processing device and the relay communication device or restoration of power supply from the outside to the relay communication device after the start of the second communication connection, the mobile terminal device A sales data processing device characterized in that said first communication connection is restarted between said relay communication device and said sales data processing device. a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A mobile terminal device used in a sales data processing system comprising:
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established through direct wireless communication with the sales data processing device without going through the relay communication device. Initiate a communication connection for
After the start of the second communication connection, the sales data processing device detects restoration of power supply from the outside to the sales data processing device and the relay communication device, or restoration of power supply from the outside to the relay communication device. The mobile terminal device is characterized in that the first communication connection with the sales data processing device via the relay communication device is restarted in the case where the first communication connection is resumed with the sales data processing device. a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A computer installed in a sales data processing device used in a sales data processing system equipped with
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established between the mobile terminal device and the mobile terminal device by direct wireless communication without going through the relay communication device. the ability to initiate a communication connection;
When detecting restoration of external power supply to the sales data processing device and the relay communication device or restoration of external power supply to the relay communication device after the start of the second communication connection, the mobile terminal a function of restarting the first communication connection with the device via the relay communication device;
A program characterized by realizing the following. a sales data processing device that can continue operation with a backup power source when the external power supply stops, and that processes sales data of commercial transactions;
a mobile terminal device that is capable of operating using an internal power source and that performs a first communication connection with the sales data processing device via a predetermined relay communication device;
A computer installed in a mobile terminal device used in a sales data processing system equipped with
When the power supply from the outside to the relay communication device is stopped and the first communication connection is disconnected, a second communication connection is established through direct wireless communication with the sales data processing device without going through the relay communication device. the ability to initiate communication connections for
After the start of the second communication connection, the sales data processing device detects restoration of power supply from the outside to the sales data processing device and the relay communication device, or restoration of power supply from the outside to the relay communication device. a function of restarting the first communication connection with the sales data processing device via the relay communication device;
A program characterized by realizing the following.

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