Sales data processing apparatus, electronic receipt system, and program

Abstract

To provide an electronic receipt system in which a portable terminal can receive electronic receipt information without the need for registering personal information such as an identification number and a mail address.SOLUTION: When radio connection has been established between a sales data processing device and a portable terminal, an electronic receipt information transmission unit directly transmits electronic receipt information to the portable terminal through a short-range radio communication unit, the electronic receipt information being generated by an electronic receipt information generation unit of the sales data processing device on the basis of settlement information on settlement of commodity sales registered by sales data processing. A customer receives the electronic receipt information by his / her portable terminal without the need for previously registering personal information.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] Embodiments of the present invention relate to a sales data processing device 、 electronic receipt system and program .

Background Art

[0002] Conventional electronic receipt systems have a POS (Point Of Sales) terminal that processes sales data and an electronic receipt management server connected to the POS terminal. The electronic receipt system transmits the electronic receipt information generated at the POS terminal to the electronic receipt management server. Then, when a customer requests it, the electronic receipt management server distributes the electronic receipt information from the electronic receipt management server to the customer's mobile terminal. Therefore, in order to receive the electronic receipt information, it was necessary to register personal information such as an identification number or an email address for identifying an individual in advance in the electronic receipt management server. Therefore, it took time and effort to register.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The problem to be solved by the present invention is a sales data processing device 、 electronic receipt system and program that can receive electronic receipt information on a mobile terminal without registering personal information such as an identification number or an email address for identifying an individual.

Means for Solving the Problems

[0004] The sales data processing device according to the embodiment includes short distance a wireless communication unit, an electronic receipt information generation unit, and an electronic receipt information transmission unit. short distance The wireless communication unit is between the mobile terminal held by the customer and the sales data processing device short distanceWhen wireless communication is performed and the identification number pre-distributed together with the processing program from a computer on the network to the mobile terminal is matched with the identification number received from the mobile terminal operating according to the processing program, it is determined that a wireless connection has been established. The electronic receipt information generation unit generates electronic receipt information based on the settlement information related to the settlement of the sales data registered as sales by the sales data processing device. The electronic receipt information transmission unit, when a wireless connection is established with the mobile terminal, transmits the electronic receipt information generated by the electronic receipt information generation unit, short distance directly to the mobile terminal via the wireless communication unit.

[0005] Also, the electronic receipt system of the embodiment includes a sales data processing device and a mobile terminal. The sales data processing device short distance includes a wireless communication unit, an electronic receipt information generation unit, and an electronic receipt information transmission unit. The mobile terminal short distance includes a wireless communication unit, an electronic receipt information reception unit, and an electronic receipt information display unit. short distance The wireless communication unit performs wireless communication between the sales data processing device that performs sales data processing and the mobile terminal held by the customer, and when the identification number pre-distributed together with the processing program from a computer on the network to the mobile terminal is matched with the identification number received from the mobile terminal operating according to the processing program, it is determined that a wireless connection has been established. The electronic receipt information generation unit generates electronic receipt information based on the settlement information related to the settlement of the sales data registered as sales by the sales data processing device. The electronic receipt information transmission unit, when a wireless connection is established with the mobile terminal, transmits the electronic receipt information generated by the electronic receipt information generation unit short distance directly to the mobile terminal via the wireless communication unit. The electronic receipt information reception unit directly receives the electronic receipt information from the sales data processing device. The electronic receipt information display unit displays the received electronic receipt information. short distance

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

[0007] The sales data processing apparatus 100 and the electronic receipt system 120 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. Note that the present invention is not limited to this embodiment. FIG. 1 is a block diagram showing the hardware configuration of the sales data processing apparatus 100 according to the present embodiment. FIG. 2 is a block diagram showing the hardware configuration of the mobile terminal 50, which is a smartphone owned by the customer C.

[0008] As shown in FIG. 1, the electronic receipt system 120 includes a sales data processing apparatus 100 installed in a store S and performing sales data processing, and a mobile terminal 50, which is a smartphone owned by the customer C.

[0009] The sales data processing device 100 includes a CPU (Central Processing Unit) 10 that executes various arithmetic processes to control each part. The CPU 10 connects a RAM (Random Access Memory) 32, a ROM (Read Only Memory) 33, and a clock unit 34 via a bus line 12. The RAM 32 is a main storage device and is used as a work area when the CPU 10 performs arithmetic processing, and temporarily stores sales data when performing sales data processing. The ROM 33 is an auxiliary storage device and stores fixed data such as a processing program P1 that controls the operation of the sales data processing device 100. The clock unit 34 measures the date and time when performing sales data processing. That is, the sales data processing device 100 has the configuration of a general computer system in which the CPU 10 reads and executes the processing program P1 as the control subject.

[0010] This sales data processing device 100 generates electronic receipt information R1 (see FIG. 3) indicating the settlement information of the customer C. Then, in response to a request from the mobile terminal 50 held by the customer C, the sales data processing device 100 distributes the generated electronic receipt information R1 to the mobile terminal 50.

[0011] In addition, the sales data processing device 100 includes, as information input / output devices, a communication I / F (Interface) 35 connected to a barcode reader 22, a wireless communication I / F 43 connected to an NFC (Near Field Communication) reader 44, and a keyboard controller 36 connected to a keyboard 13, respectively.

[0012] In addition, the sales data processing device 100 includes, as input / output devices, a first display / input controller 37 connected to a cashier display 14 and a cashier touch panel 15, and a second display / input controller 38 connected to a customer display 18 and a customer touch panel 19, respectively.

[0013] Furthermore, the sales data processing device 100 includes a LAN (Local Area Network) I / F 42 that connects the sales data processing device 100 to a store server (not shown) that manages a plurality of sales data processing devices within the store S, other computers, and connected devices, and an audio controller 40 connected to the speaker 21 as input / output devices, respectively.

[0014] All of these input / output devices included in the sales data processing device 100 are connected to the CPU 10 via the bus line 12 and are controlled in operation by a processing program P1 executed by the CPU 10.

[0015] The processing program P1 executed by the CPU 10 is a file in an installable or executable format and is provided by being recorded on a computer-readable recording medium such as a CD-ROM, flexible disk (FD), CD-R, DVD (Digital Versatile Disc), etc. Also, the processing program P1 may be stored on a computer connected to a network such as the Internet and downloaded to the sales data processing device 100 via the network through the LAN I / F 42.

[0016] The mobile terminal 50 is connected to the sales data processing device 100 by short-range wireless communication conforming to the NFC standard via the NFC reader 44 shown in FIG. 1 by the CPU 60 shown in FIG. 2 controlling the wireless communication I / F 68. Note that the mobile terminal 50 is not limited to a smartphone and may be any information processing device having a wireless communication function such as a mobile phone, PDA (Personal Digital Assistant), tablet computer, etc.

[0017] The mobile terminal 50 has the configuration of a general computer system in which the CPU 60 serves as the control main body and executes the processing program P2. The CPU 60 is connected to the wireless communication I / F 68 via the bus line 62. Also, the CPU 60 is connected to the RAM 70 and the memory controller 72 via the bus line 62, respectively. The memory controller 72 is connected to the flash memory 74.

[0018] The RAM 70 is the main storage device and functions as a temporary storage unit for calculation results when the CPU 60 performs arithmetic processing. The flash memory 74 is an auxiliary storage device and stores fixed data such as the processing program P2 executed by the CPU 60.

[0019] The CPU 60 is further connected to the display 78 equipped with a liquid crystal display and the touch panel 80 via the display / input controller 76, respectively.

[0020] The processing program P2 is provided by the store S, for example, when the customer C becomes a member of the store S. The customer C obtains it by directly downloading the processing program P2 from the sales data processing device 100. Also, the processing program P2 may be stored on a computer connected to a network such as the Internet and downloaded to the mobile terminal 50 via the network. The downloaded processing program P2 is stored in the flash memory 74 of the mobile terminal 50. Then, the CPU 60 calls and executes this processing program P2 as needed. Note that a unique identification number for specifying the mobile terminal 50 is downloaded together with the processing program P2 and stored in the flash memory 74.

[0021] Next, among the processes executed by the sales data processing device 100, the electronic receipt information generation process and the electronic receipt information transmission process, which are the characteristic processes of this embodiment, will be described.

[0022] FIG. 3 is a block diagram showing the functional configurations of the sales data processing apparatus 100 and the mobile terminal 50. Note that the sales data processing apparatus 100 and the mobile terminal 50 constitute an electronic receipt system 120. The CPU 10 of the sales data processing apparatus 100 operates according to a processing program P1 and functions as a sales data processing unit 82, an electronic receipt information generation unit 84, an electronic receipt information transmission unit 86, and a short-range wireless communication unit 88 shown in FIG. 3.

[0023] Also, the CPU 60 of the mobile terminal 50 operates according to a processing program P2 and functions as an electronic receipt information request unit 90, an electronic receipt information reception unit 92, a short-range wireless communication unit 94, and an electronic receipt information display unit 96 shown in FIG. 3.

[0024] After the customer C has finished shopping, the sales data processing unit 82 of the sales data processing apparatus 100 reads information such as the product name and price from a product master (not shown) according to the product code read from the barcode attached to each product. Then, the read information is displayed on the cashier display 14 and the customer display 18 (FIG. 1), and a sales registration process of storing it in the RAM 32 (FIG. 1) is performed.

[0025] Also, the sales data processing unit 82 performs a settlement process of executing a payment procedure using cash, a prepaid card, a credit card, or the like based on the product information for which the sales registration process has been executed.

[0026] Furthermore, the sales data processing unit 82 displays on the customer display 18 (FIG. 1) of the sales data processing apparatus 100, "When receiving electronic receipt information, please hold your mobile terminal over the reader", etc., and asks the customer C whether to receive the electronic receipt information R1. At this time, the above-mentioned words may be output as voice information from the speaker 21 (FIG. 1). When receiving the electronic receipt information R1, the customer C holds the mobile terminal 50 over the NFC reader 44 (FIG. 1) placed near the sales data processing apparatus 100.

[0027] When the mobile terminal 50 is held over the NFC reader 44 (Fig. 1), the short-range wireless communication unit 88 of the sales data processing device 100 and the short-range wireless communication unit 94 of the mobile terminal 50 perform short-range wireless communication in accordance with the NFC standard to wirelessly connect the sales data processing device 100 and the mobile terminal 50. When the wireless connection is established, the mobile terminal 50 transmits its unique identification number downloaded together with the processing program P2 to the sales data processing device 100. The sales data processing device 100 collates the received identification number with the identification number distributed together with the processing program P2 registered in the store server, and authenticates that a wireless connection has been established with the mobile terminal 50 that downloaded the processing program P2. Then, the sales data processing device 100 transmits authentication information indicating that the wireless connection has been authenticated to the mobile terminal 50. When the CPU 60 of the mobile terminal 50 receives this authentication information, it starts the processing program P2.

[0028] When the processing program P2 is started, the electronic receipt information request unit 90 of the mobile terminal 50 transmits a request signal S1 (Fig. 3) requesting the transmission of the electronic receipt information R1 to the sales data processing device 100. Then, when the electronic receipt information generation unit 84 of the sales data processing device 100 receives the request signal S1 for transmitting the electronic receipt information from the mobile terminal 50, it generates the electronic receipt information R1 including the name of the purchased product, the number of products, the unit price of the product, and the total amount based on the result of the sales registration process (electronic receipt information generation process). The electronic receipt information R1 generated at this time may be structured document data such as XML (eXtensible Markup Language) or CSV (Comma-Separated Values), or may be image data such as PDF (Portable Document Format) or bitmap.

[0029] The electronic receipt information transmission unit 86 transmits the generated electronic receipt information R1 to the mobile terminal 50 (electronic receipt information transmission process).

[0030] The electronic receipt information receiving unit 92 of the mobile terminal 50 receives the electronic receipt information R1. Then, the electronic receipt information display unit 96 displays the received electronic receipt information R1 on the display 78 (Fig. 2) of the mobile terminal 50.

[0031] Fig. 4 is a diagram showing an example of the display form of the electronic receipt information R1 displayed on the mobile terminal 50. As shown in Fig. 4, on the display 78 of the mobile terminal 50, the store name a, the date and time b when the electronic receipt information R1 was issued, the product name c, the unit price d of the product, the number of items e, the total amount f, the deposit amount g, the change amount h, etc. are respectively displayed.

[0032] After receiving the electronic receipt information R1, the electronic receipt information receiving unit 92 transmits a reception completion signal (ACK (ACKnowledge) signal) S2 indicating that the reception has been completed to the sales data processing device 100. When the short-range wireless communication unit 88 of the sales data processing device 100 receives this reception completion signal S2, it ends the electronic receipt information transmission process. Then, the short-range wireless communication unit 88 disconnects the wireless connection between the sales data processing device 100 and the mobile terminal 50. Note that since the journal data related to the sales registration that is the basis for generating the electronic receipt information is stored in the sales data processing device 100 as a journal file, the electronic receipt information generation unit 84 may delete the generated electronic receipt information R1 when it receives the reception completion signal S2 from the mobile terminal 50.

[0033] Next, the flow of the process performed by the electronic receipt system 120 will be described step by step using the flowchart of Fig. 5.

[0034] (Explanation of the process on the sales data processing device side) In the sales data processing device 100, the sales data processing unit 82 performs sales data processing (step S10).

[0035] The short-range wireless communication unit 88 checks whether a wireless connection has been established (step S12). When a wireless connection has been established (step S12; Yes), it proceeds to step S14, and otherwise (step S12; No), it proceeds to step S24.

[0036] The sales data processing unit 82 checks whether there is a transmission request for the electronic receipt information R1 (step S14). When there is a transmission request for the electronic receipt information R1 (step S14; Yes), it proceeds to step S16, and when there is no such request (step S14; No), it proceeds to step S26.

[0037] The electronic receipt information generation unit 84 generates the electronic receipt information R1 (step S16).

[0038] The electronic receipt information transmission unit 86 transmits the electronic receipt information R1 to the mobile terminal 50 (step S18).

[0039] The short-range wireless communication unit 88 checks whether it has received a reception completion signal S2 indicating the completion of the reception of the electronic receipt information R1 from the mobile terminal 50 (step S20). When the reception completion signal S2 is received (step S20; Yes), it proceeds to step S22, and when it is not received (step S20; No), it repeats step S20.

[0040] It checks whether the wireless connection has been disconnected (step S22). When the wireless connection has been disconnected (step S22; Yes), the processing on the side of the sales data processing device 100 ends, and when it has not been disconnected (step S22; No), it repeats step S22.

[0041] The short-range wireless communication unit 88 checks whether a predetermined time has elapsed (step S24). When the predetermined time has elapsed (step S24; Yes), the short-range wireless communication unit 88 determines that the wireless connection cannot be established and ends the processing on the side of the sales data processing device 100, and when the predetermined time has not elapsed (step S24; No), it returns to step S12.

[0042] The electronic receipt information transmission unit 86 checks whether a predetermined time has elapsed (step S26). When the predetermined time has elapsed (step S26; Yes), it is determined that there is no transmission request for the electronic receipt information R1, and the processing on the side of the sales data processing device 100 is terminated. Otherwise (step S26; No), the process returns to step S14.

[0043] (Explanation of the processing on the mobile terminal side) The short-range wireless communication unit 94 checks whether a wireless connection has been established (step S30). When the wireless connection has been established (step S30; Yes), the process proceeds to step S32. Otherwise (step S30; No), the process proceeds to step S52.

[0044] The short-range wireless communication unit 94 checks whether the authentication of the wireless connection has been successful (step S32). When the authentication of the wireless connection has been successful (step S32; Yes), the process proceeds to step S34. Otherwise (step S32; No), the processing on the side of the mobile terminal 50 is terminated.

[0045] The CPU 60 (Figure 2) starts the processing program P2 (step S34).

[0046] The electronic receipt information request unit 90 requests the sales data processing device 100 to transmit the electronic receipt information R1 (step S36).

[0047] The electronic receipt information receiving unit 92 receives the electronic receipt information R1 from the sales data processing device 100 (step S38).

[0048] The electronic receipt information receiving unit 92 transmits a reception completion signal S2 indicating that the reception of the electronic receipt information R1 has been completed to the sales data processing device 100 (step S40).

[0049] The short-range wireless communication unit 94 disconnects the wireless connection (step S42).

[0050] The electronic receipt information display unit 96 checks whether there is a display request for the received electronic receipt information R1 (step S44). When there is a display request for the electronic receipt information R1 (step S44; Yes), the process proceeds to step S46, and when there is no such request (step S44; No), step S44 is repeated.

[0051] The electronic receipt information display unit 96 displays the electronic receipt information R1 on the mobile terminal 50 (step S46).

[0052] The CPU 60 (Fig. 2) checks whether there is an end request for the processing program P2 (step S48). When there is an end request for the processing program P2 (step S48; Yes), the process proceeds to step S50, and when there is no such request (step S48; No), step S48 is repeated.

[0053] The CPU 60 (Fig. 2) ends the processing program P2 (step S50).

[0054] The short-range wireless communication unit 94 checks whether a predetermined time has elapsed (step S52). When the predetermined time has elapsed (step S52; Yes), the short-range wireless communication unit 94 determines that the wireless connection cannot be established and ends the processing on the mobile terminal 50 side, and when the predetermined time has not elapsed (step S52; No), the process returns to step S30.

[0055] As described above, according to the sales data processing apparatus 100 of the embodiment, when a wireless connection is established between the sales data processing apparatus 100 and the mobile terminal 50, the electronic receipt information generation unit 84 of the sales data processing apparatus 100 generates the electronic receipt information R1 based on the settlement information related to the settlement of the products registered as sales by the sales data processing. The electronic receipt information transmission unit 86 directly transmits the electronic receipt information R1 to the mobile terminal 50 via the short-range wireless communication units 88 and 94. Therefore, the customer C can receive the electronic receipt information R1 with his / her own mobile terminal 50 and display it on the mobile terminal 50 without pre-registering personal information (such as email address).

[0056] According to the sales data processing apparatus 100 of the embodiment, when there is a transmission request for the electronic receipt information R1 from the mobile terminal 50 to the electronic receipt information transmission unit 86, the electronic receipt information transmission unit 86 transmits the electronic receipt information R1 to the mobile terminal 50. Therefore, the sales data processing apparatus 100 can surely transmit the electronic receipt information R1 to the mobile terminal 50 that has requested the transmission of the electronic receipt information R1.

[0057] Also, according to the sales data processing apparatus 100 of the embodiment, when the short-range wireless communication unit 88 receives a reception completion signal S2 indicating that the reception of the electronic receipt information R1 from the mobile terminal 50 has been completed, the short-range wireless communication unit 88 disconnects the wireless connection. Therefore, when the transmission and reception of the necessary electronic receipt information R1 are completed, the wireless connection can be surely disconnected, which provides peace of mind.

[0058] Furthermore, according to the sales data processing apparatus 100 of the embodiment, the short-range wireless communication units 88 and 94 perform short-range wireless communication based on the NFC standard between the sales data processing apparatus 100 and the mobile terminal 50. Therefore, since the procedure (pairing) for the mobile terminal 50 to search for and register the connection destination can be easily performed, the transmission and reception of the electronic receipt information R1 can be performed quickly and easily without hassle. Also, when performing short-range wireless communication, the customer C needs to hold the mobile terminal 50 over the NFC reader 44 by himself / herself. At this time, since the NFC reader 44 is placed near the sales data processing apparatus 100, there is no risk that another customer will interrupt from the side and pose as the customer C to receive the electronic receipt information R1.

[0059] As described above, according to the electronic receipt system 120 of the embodiment, when a wireless connection is established between the sales data processing device 100 and the mobile terminal 50, the electronic receipt information R1 generated by the electronic receipt information generation unit 84 of the sales data processing device 100 is directly transmitted by the electronic receipt information transmission unit 86 to the electronic receipt information receiving unit 92 of the mobile terminal 50 via the short-range wireless communication units 88 and 94. Then, the electronic receipt information display unit 96 of the mobile terminal 50 displays the received electronic receipt information R1. Therefore, the customer C can receive the electronic receipt information R1 with his / her own mobile terminal 50 and display it on the mobile terminal 50 without pre-registering personal information (such as an email address).

[0060] Although the embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and its equivalent scope.

[0061] For example, in the electronic receipt system 120 of the embodiment, wireless communication conforming to the NFC standard is used for the communication between the sales data processing device 100 and the mobile terminal 50, but this is not limited to wireless communication conforming to the NFC standard. That is, wireless communication such as Bluetooth (registered trademark), TransferJet (registered trademark), iBeacon (registered trademark), etc. may be used. However, when using a wireless communication method that requires time for pairing, such as Bluetooth (registered trademark), among these wireless communications, it is desirable to use it in cooperation with NFC. That is, first, a wireless connection between the sales data processing device 100 and the mobile terminal 50 is established by NFC. Then, after the wireless connection is established, the electronic receipt information R1 is transmitted from the sales data processing device 100 to the mobile terminal 50 by Bluetooth (registered trademark) communication. By performing so-called handover using a plurality of wireless communication methods in combination in this way, the time and effort for pairing can be reduced.

Description of Symbols

[0062] 50 Mobile terminal 82 Sales data processing unit 84 Electronic receipt information generation unit 86 Electronic receipt information transmission unit 88, 94 Short-range wireless communication unit 90 Electronic receipt information request unit 92 Electronic receipt information reception unit 96 Electronic receipt information display unit 100 Sales data processing device 120 Electronic receipt system R1 Electronic receipt information S1 Request signal S2 Reception completion signal

Prior Art Documents

Patent Documents

[0063]

Patent Document 1

Claims

1. a short-range wireless communication unit that performs short-range wireless communication between a portable terminal carried by a customer and a sales data processing device, and determines that a wireless connection has been established when an identification number that has been distributed in advance from a computer on a network to the portable terminal together with a processing program is matched with an identification number received from the portable terminal operating according to the processing program; an electronic receipt information generating unit that generates electronic receipt information based on payment information related to payment of the sales data registered by the sales data processing device; an electronic receipt information transmitting unit that transmits the electronic receipt information generated by the electronic receipt information generating unit directly to the mobile terminal via the short-range wireless communication unit when a wireless connection between the electronic receipt information generating unit and the mobile terminal is established; A sales data processing device comprising:

2. the electronic receipt information transmitting unit transmits the electronic receipt information to the mobile terminal when a transmission request for the electronic receipt information is received from the mobile terminal to the electronic receipt information transmitting unit.

2. The sales data processing device according to claim 1.

3. the short-range wireless communication unit disconnects the wireless connection when receiving a reception completion signal indicating that reception of the electronic receipt information has been completed from the mobile terminal.

3. The sales data processing device according to claim 1 or 2.

4. The short-range wireless communication unit performs short-range wireless communication based on the NFC standard.

3. The sales data processing device according to claim 1 or 2.

5. a short-range wireless communication unit that performs short-range wireless communication between a sales data processing device that processes sales data and a portable terminal carried by a customer, and determines that a wireless connection has been established when an identification number that has been distributed in advance from a computer on a network to the portable terminal together with a processing program is matched with an identification number received from the portable terminal operating according to the processing program; an electronic receipt information generating unit that generates electronic receipt information based on payment information related to payment of the sales data registered by the sales data processing device; an electronic receipt information transmitting unit that transmits the electronic receipt information generated by the electronic receipt information generating unit directly to the mobile terminal via the short-range wireless communication unit when a wireless connection between the electronic receipt information generating unit and the mobile terminal is established; an electronic receipt information receiving unit that receives the electronic receipt information directly from the sales data processing device, and an electronic receipt information display unit that displays the received electronic receipt information, each of which is provided in the mobile terminal; An electronic receipt system comprising:

6. A computer that controls the sales data processing device, a short-range wireless communication unit that performs short-range wireless communication between a portable terminal carried by a customer and a sales data processing device, and determines that a wireless connection has been established when an identification number that has been distributed in advance from a computer on a network to the portable terminal together with a processing program is matched with an identification number received from the portable terminal operating according to the processing program; an electronic receipt information generating unit that generates electronic receipt information based on payment information related to payment of the sales data registered by the sales data processing device; an electronic receipt information transmitting unit that transmits the electronic receipt information generated by the electronic receipt information generating unit directly to the mobile terminal via the short-range wireless communication unit when a wireless connection between the electronic receipt information generating unit and the mobile terminal is established; A program that makes it work.

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