CN109830073B - POS machine and control method, operation method and payment method thereof - Google Patents
POS machine and control method, operation method and payment method thereof Download PDFInfo
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- CN109830073B CN109830073B CN201910159194.2A CN201910159194A CN109830073B CN 109830073 B CN109830073 B CN 109830073B CN 201910159194 A CN201910159194 A CN 201910159194A CN 109830073 B CN109830073 B CN 109830073B
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Abstract
The invention discloses a POS machine and a control method, an operation method and a payment method thereof, wherein the POS machine comprises: a main screen component, an auxiliary screen component and an auxiliary component; wherein, the main screen part includes: a first touch display screen for operation by a cashier; the sub-screen member includes: the second touch display screen is used for customer operation, and the card inserting module and the card swiping module are used for customer operation; the auxiliary member includes: the device comprises a machine body connected with a first touch display screen and a second touch display screen, and a receipt printer, a scanning device and a non-contact card reading module which are arranged on the machine body. The invention provides a POS machine with double touch display screens, which enables the payment operation to be more convenient and faster and improves the payment efficiency and the payment safety.
Description
Technical Field
The invention relates to the field of terminal payment, in particular to a POS machine and a control method, an operation method and a payment method thereof.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
A pos (point of sales) machine is a money receiving apparatus for cashless settlement. In the past, the popularity of credit cards and bank cards has prompted the development of traditional POS machines that primarily involve the functions of card swiping payments, printing tickets, etc., so that merchants can obtain customers who pay with credit cards or bank cards by deploying traditional POS machines.
In recent years, with the development of mobile payment, the payment modes of consumers are more diversified (for example, code scanning payment, face brushing payment, etc.), so that the traditional POS machine cannot meet all the payment modes. And the appearance of intelligent POS machine has overcome traditional POS machine not enough. The intelligent POS machine integrates a plurality of payment modes such as card swiping, code scanning and the like, supports diversified services such as code scanning refund, consumption revocation, goods refund, account transfer and the like, and supports various refined requirements of the merchant (for example, cashier sign-in, merchant name more complete display, daily transaction summary single terminal printing, peculiar cashier mark, receipt reprinting, electronic receipt, transaction inquiry and the like), so that the intelligent POS machine becomes an order collector of the merchant, and the continuous innovation and upgrade of bank financial services are promoted.
However, the existing POS machine has only one display screen facing the cashier, so that there is inconvenience in payment for consumption as follows: the amount of money consumed cannot be visually presented to the customer, and can be seen only when a cashier transfers the POS machine to the customer; secondly, when the user swipes the card for payment, the user needs to give the credit card or the bank card to a cashier for replacement swiping, and the user only inputs the password, so that the method has the risk of embezzlement; and when the customer inputs the password, the cashier is required to transfer the POS machine to the customer so as to enable the customer to execute the password input operation.
Therefore, the existing POS machine is complex to operate during consumption and payment, and has the technical problem of potential safety hazard.
Disclosure of Invention
The embodiment of the invention provides a POS machine, which is used for solving the technical problems that the operation is complicated and potential safety hazards exist when consumption and payment are caused because the traditional POS machine is only provided with a display screen facing a cashier, and comprises: a main screen component, an auxiliary screen component and an auxiliary component; wherein, the main screen part includes: a first touch display screen for operation by a cashier; the sub-screen member includes: the second touch display screen is used for customer operation, and the card inserting module and the card swiping module are used for customer operation; the auxiliary member includes: the device comprises a machine body, a receipt printer, a scanning device and a non-contact card reading module, wherein the machine body is connected with a first touch display screen and a second touch display screen;
the card swiping module is arranged at the joint of the second touch display screen and the machine body, and the card inserting module is arranged below the second touch display screen and close to one side of the machine body;
the main screen component is controlled by a main screen process, the auxiliary screen component is controlled by an auxiliary screen process, and the main screen component and the auxiliary screen component perform data interaction in a cross-process communication mode; after receiving the checkout information transmitted by the main screen process, the auxiliary screen process returns a message receipt confirmation message to the main screen process so that the main screen process can continue to execute the next step; after receiving the payment result transmitted by the auxiliary screen process, the main screen process returns a message receipt confirmation message to the auxiliary screen process so that the auxiliary screen process can continue to execute the next step;
wherein the auxiliary component further comprises: the rotating shaft is positioned at the joint of the first touch display screen and the machine body and is used for rotating the first touch display screen or the machine body so as to enable the first touch display screen and the second touch display screen to face two opposite directions;
the first touch display screen and the second touch display screen transmit touch signals to a control main board arranged in the machine body through USB interfaces;
wherein, the POS machine is a handheld POS machine.
The embodiment of the invention also provides a control method of the POS machine, which is used for solving the technical problems of complex operation and potential safety hazard during consumption and payment caused by the fact that the existing POS machine is only provided with a display screen facing a cashier, and the method is applied to the POS machine and comprises the following steps: detecting a first operation instruction input by a cashier through a first touch display screen; sending a first operation result corresponding to the first operation instruction to a second touch display screen; controlling a second touch display screen to display a first operation result, and detecting a second operation instruction input by a client through the second touch display screen; sending a second operation result corresponding to the second operation instruction to the first touch display screen; and controlling the first touch display screen to display a second operation result.
The embodiment of the invention also provides an operation method of the POS machine, which is used for solving the technical problems of complex operation and potential safety hazard during consumption and payment caused by the fact that the existing POS machine is only provided with a display screen facing a cashier, and the method is applied to the POS machine and comprises the following steps: detecting a first operation instruction input by a cashier; generating a first operation result according to the first operation instruction; sending the first operation result to a second touch display screen; and receiving a second operation result returned by the second touch display screen.
The embodiment of the invention also provides a payment method of the POS machine, which is used for solving the technical problems of complex operation and potential safety hazard during consumption and payment caused by the fact that the conventional POS machine is only provided with a display screen facing a cashier, and the method is applied to the POS machine and comprises the following steps: detecting a first operation result sent by a first touch display screen; displaying a first operation result; detecting a second operation instruction input by a client; generating a second operation result according to the second operation instruction; and sending the second operation result to the first touch display screen.
In the embodiment of the invention, a POS machine with double screens is provided, wherein a main screen component provides a first touch display screen for a cashier to operate, and a secondary screen component provides a second touch display screen, a card inserting module and a card swiping module for a customer to operate; when the customer swipes the card and consumes the electricity, the card can be swiped through the card-plugging module or the card-swiping module provided by the auxiliary screen component, and the customer does not need to transfer the card to a cashier for swiping the card; the POS machine provided by the embodiment of the invention is provided with auxiliary components such as a scanning device and a non-contact card reading module, can also support code scanning payment or IC card payment, and meets more payment scenes.
According to the POS machine with the double-touch display screen, provided by the embodiment of the invention, a cashier can check the consumption condition in real time without transferring the POS machine to a customer; and the customer directly carries out self-service card swiping payment without submitting the card to a cashier for card swiping, so that the payment operation becomes more convenient, and the payment efficiency and the payment safety are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
FIG. 1 is a schematic external view of an alternative POS apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the internal connections of various components of an alternative POS machine according to an embodiment of the present invention;
FIG. 3 is a flow chart of a checkout process performed by the main screen component in an embodiment of the present invention;
fig. 4 is a flowchart of a payment process performed by the sub-screen unit according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a cross-process communication between a main screen component and an auxiliary screen component according to an embodiment of the present invention;
FIG. 6 is a flowchart of a method for controlling a POS machine according to an embodiment of the present invention;
FIG. 7 is a flow chart of a method of operating a POS machine in accordance with an embodiment of the present invention;
fig. 8 is a flowchart of a payment method of a POS machine according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
An embodiment of the present invention provides a POS, and fig. 1 is a schematic view of an optional POS provided in an embodiment of the present invention, and as shown in fig. 1, the POS includes: a main screen component, an auxiliary screen component and an auxiliary component;
wherein, the main screen part includes: a first touch display screen 1 for operation by a cashier; the sub-screen member includes: the second touch display screen 2, the card inserting module 3 and the card swiping module 4 are operated by a customer; the auxiliary member includes: the device comprises a machine body 5 connected with a first touch display screen and a second touch display screen, and a receipt printer 6, a scanning device 7 and a non-contact card reading module 8 which are arranged on the machine body.
It should be noted that, in the embodiment of the present invention, the main screen component refers to a component operated by a cashier, and since the touch display screen can be used for displaying information and inputting information by the cashier, in order to reduce the body volume of the POS machine, as a preferred embodiment, the main screen component provided by the POS machine in the embodiment of the present invention for the operation of the cashier can be implemented by one touch display screen (i.e. the first touch display screen 1), but for some POS machines with keyboards, the main screen component also includes the keyboards operated by the cashier. The auxiliary screen component is a component operated by a customer, and in order to enable the customer to view transaction information such as consumption amount in real time and achieve the purpose of self-service card swiping, the auxiliary screen component provided by the POS machine in the embodiment of the present invention may include, but is not limited to, a second touch display screen 2, a card plugging module 3, and a card swiping module 4, wherein the second touch display screen 2 is used for displaying transaction information such as consumption amount; the card-inserting module 3 is used for customer card-inserting payment; the card swiping module 4 is used for card swiping payment of customers. The auxiliary component is a component having an auxiliary function on the POS machine, and includes, but is not limited to, a machine body 5 connecting a first touch display screen and a second touch display screen, and a receipt printer 6, a scanning device 7, and a non-contact card reading module 8, which are disposed on the machine body, wherein the receipt printer 6 is used for printing a receipt; the scanning device 7 is used for scanning the payment code or the commodity code; the contactless card reading module 8 is used to read various IC cards including, but not limited to, IC financial cards in a contactless manner.
The operation interfaces provided on the first touch display screen and the second touch display screen in the POS machine provided by the embodiments of the present invention may be designed differently according to specific application scenarios, which is not limited in the present invention.
It should be noted that the POS provided by the embodiment of the present invention may be applicable to a card payment scenario, and may also be applicable to a code scanning payment scenario, a face payment scenario, a fingerprint payment scenario, and the like. The payment scene of swiping the card can be a payment scene of a financial card such as a credit card or a bank card, and can also be a payment scene of a non-financial card such as a membership card or a stored value card.
Alternatively, the scanning device 7 in fig. 1 may include, but is not limited to, one or more of: bar code scanner, camera, fingerprint identification ware. The commodity information can be scanned through a bar scanner; the face information of the client can be scanned through the camera so as to be suitable for scenes of face brushing payment or identity authentication; the fingerprint information of the client can be identified through the fingerprint identifier so as to be suitable for a fingerprint payment or identity verification scene. As a preferred embodiment, when the scanning device is a camera, the camera may adopt an adjustable design to ensure that a scanning payment operation or a face brushing payment operation can be performed.
In order to reasonably design the size information of the POS machine to minimize the occupied volume, as shown in fig. 1, as a preferred embodiment, in the embodiment of the present invention, a card swiping module 4 is disposed at the connection between the second touch display screen 2 and the machine body 5, and a card plugging module 3 is disposed below the second touch display screen. As the card swiping slot corresponding to the card swiping module 4 is in a strip shape and is arranged at the joint of the second touch display screen 2 and the POS machine body 5, the size of the POS machine body can be reduced. Since the control main board of the POS device is generally located in the main body 5, the card swiping module 4 is disposed at the connection between the second touch display screen 2 and the main body 5, so as to simplify the internal circuit design. In order to further reduce the circuit design, the card-insertion module 3 is preferably disposed below the second touch display screen and near one side of the body 5.
Fig. 2 is a schematic diagram illustrating internal connections of components of an alternative POS machine according to an embodiment of the present invention, and as shown in fig. 2, a first touch display screen 1 is connected to a first display module on a control main board 10, and is configured to display information output to a cashier; the second touch display screen 2 is connected with a second display module on the control main board 10 and used for displaying information output to a client; and the first touch display screen 1 and the second touch display screen 2 both transmit touch signals with the control mainboard 10 through the USB interface. The card inserting module 3, the card swiping module 4, the receipt printer 6, the non-contact card reading module 8 and the control main board 10 on the POS machine are also connected through a USB interface, and when the scanning device 7 is a camera, the scanning device is connected with the control main board 10 through a camera interface, and optionally, when the scanning device 7 is a bar scanner or a fingerprint identifier or other devices, the interface between the scanning device 7 and the control main board 10 may adopt other interfaces.
In order to make the first touch display screen 1 face the cashier side and the second touch display screen 2 face the customer side, as an alternative embodiment, as shown in fig. 1, the auxiliary component on the POS machine provided by the embodiment of the invention may further include a rotating shaft 9, located at a joint of the first touch display screen 1 and the machine body 5, for rotating the first touch display screen 1 or the machine body 5, so that the first touch display screen 1 and the second touch display screen 2 face two opposite directions.
As an optional implementation manner, in the POS machine provided in the embodiment of the present invention, the main screen component and the auxiliary screen component may be controlled by different processes, and the auxiliary screen component perform data interaction in a cross-process communication manner.
Taking a checkout payment scenario as an example, fig. 3 is a checkout flow chart executed by a main screen component in the embodiment of the present invention, and as shown in fig. 3, a checkout flow executed by a main screen (i.e., a first touch display screen) includes the following steps:
s301, receiving checkout information input by a cashier;
s302, detecting a checkout instruction of a cashier;
s303, submitting checkout information to a secondary screen;
and S304, receiving the payment result returned by the auxiliary screen.
Specifically, the cashier inputs checkout information through the first touch display screen, inputs a checkout instruction through the first touch display screen, the first touch display screen submits the checkout information of the order to the second touch display screen, and then waits for a payment result of the second touch display screen.
Fig. 4 is a payment flow chart executed by the sub-screen component in the embodiment of the present invention, and as shown in fig. 4, the payment flow executed by the sub-screen (i.e., the second touch display screen) includes the following steps:
s401, displaying settlement information containing the transaction amount;
s402, receiving a payment mode selected by a customer, wherein the payment mode comprises the following steps: code scanning payment and card swiping payment; if the customer selects code scanning payment, executing a code scanning flow of S4031; if the customer selects card swiping payment, executing the card reading process of S4032 (the customer inserts or swipes the card);
s404, detecting the password verification mode selected by the client, and if the client selects not to execute the password verification operation, directly executing S407; if the customer selects the face brushing verification, executing the face brushing verification process of S4061, and executing S407 after the verification is passed; if the client selects fingerprint verification, executing the fingerprint verification process of S4062, and executing S407 after the verification is passed; if the customer selects password authentication, executing the password authentication flow chart of S4063, and executing S407 after the authentication is passed;
s407, a payment process is executed.
Specifically, the second touch display screen outputs the transaction information after receiving the checkout information of the first touch display screen, the customer can check the amount of money to be paid for the transaction through the checkout information displayed by the second touch display screen, and then select a corresponding payment mode through the second touch display screen (the payment mode provided by the embodiment of the invention includes but is not limited to code scanning payment and card swiping payment), after selecting any one of the payment modes, the customer can also select a secret verification mode through the second touch display screen (the secret verification mode provided by the embodiment of the invention includes but is not limited to password input, face swiping verification or fingerprint verification), and when the secret verification is successful, the customer enters a corresponding payment flow; obviously, the customer can also choose to directly enter the payment process without the password verification operation.
Because the data interaction is involved between the checkout flow and the payment flow, fig. 5 is a flowchart of cross-process communication between the main screen component and the sub-screen component provided in the embodiment of the present invention, as shown in fig. 5, the steps shown in S501a, S502a, S503a to S504a are the main screen process; the process executed by S501b, S502b to S503b is a secondary screen process, wherein in the secondary screen process, S501b needs to acquire checkout information sent by the main screen process; s503a in the main screen process needs to obtain the payment result sent by the sub-screen process. Optionally, in the sub-screen process, after receiving the checkout information transmitted by the main screen process, the S501b may return an information receipt confirmation message to the main screen process, so that the main screen process continues to execute the next step; on the contrary, in the main screen process S503a, after receiving the payment result transmitted by the sub-screen process, the information receipt confirmation message may be returned to the sub-screen process, so that the sub-screen process may continue to execute the next step.
The embodiment of the invention also provides a control method of the POS machine, and the method can be applied to the control main board of any POS machine embodiment.
Fig. 6 is a flowchart of a control method of a POS machine provided in an embodiment of the present invention, and as shown in fig. 6, the control method may include the following steps:
s601, detecting a first operation instruction input by a cashier through a first touch display screen;
s602, sending a first operation result corresponding to the first operation instruction to a second touch display screen;
s603, controlling a second touch display screen to display a first operation result, and detecting a second operation instruction input by a client through the second touch display screen;
s604, sending a second operation result corresponding to the second operation instruction to the first touch display screen;
and S605, controlling the first touch display screen to display a second operation result.
It should be noted that the first operation instruction refers to an operation instruction of the cashier operating the first touch display screen, and includes, but is not limited to, a checkout or recharge instruction, and accordingly, the first operation result includes, but is not limited to, checkout or recharge information; the second operation instruction refers to an instruction for a customer to operate the second touch display screen, and includes but is not limited to a selection instruction for selecting a payment mode or a password verification mode, when the control mainboard in the POS machine detects a checkout or recharge instruction input by a cashier through the first touch display screen, the control mainboard sends corresponding checkout or recharge information to the second touch display screen, and controls the second touch display to the customer; and when the control mainboard in the POS machine detects the payment result operated by the customer through the second touch display screen, the corresponding payment result is sent to the first touch display screen, and the first touch display screen is controlled to display the payment result to a cashier.
Optionally, after S605, the control method may further include: detecting a receipt printing instruction input by a cashier through a first touch display screen; and controlling the receipt printer to print the receipt according to the receipt printing instruction. Specifically, after the control mainboard detects that the cashier inputs a receipt printing instruction through the first touch display screen, the control mainboard controls the receipt printer to print a corresponding receipt.
The embodiment of the invention also provides an operation method of the POS machine, and the operation method can be applied to the first touch display screen in the POS machine in any embodiment.
Fig. 7 is a flowchart of an operation method of a POS machine provided in an embodiment of the present invention, and as shown in fig. 7, the operation method may include the following steps:
s701, detecting a first operation instruction input by a cashier;
s702, generating a first operation result according to the first operation instruction;
s703, sending the first operation result to a second touch display screen;
and S704, receiving a second operation result returned by the second touch display screen.
Optionally, after receiving a second operation result returned by the second touch display screen, the operation method may further include: and detecting a receipt printing instruction input by a cashier, wherein the receipt printing instruction is used for controlling a receipt printer to print a receipt.
The embodiment of the invention also provides a payment method of the POS machine, and the payment method can be applied to the second touch display screen in the POS machine in any embodiment.
Fig. 8 is a flowchart of a payment method of a POS machine provided in an embodiment of the present invention, and as shown in fig. 8, the payment method may include the following steps:
s801, detecting a first operation result sent by a first touch display screen;
s802, displaying a first operation result;
s803, detecting a second operation instruction input by the client;
s804, generating a second operation result according to the second operation instruction;
and S805, sending the second operation result to the first touch display screen.
Optionally, the detecting of the second operation instruction input by the client may include at least one of: detecting a first selection instruction input by a customer, wherein the first selection instruction is used for selecting any one of the following payment modes: code scanning payment and card swiping payment; detecting a second selection instruction input by the client, wherein the second selection instruction is used for selecting any one of the following encryption methods: password verification, fingerprint verification and face brushing verification.
In summary, the embodiment of the present invention provides a POS machine with a dual-touch display screen, which can achieve the following technical effects: safety, because a cashier does not directly contact the card of the user any more, the card operation is carried out by the user, and the card is prevented from being stolen and swiped; convenience, because the POS adopts a double-touch display screen, a customer can visually see consumption conditions and directly select a payment mode by self without transferring a POS machine to the customer for operation by a cashier each time; comprehensively, the POS machine, the control method, the operation method and the payment method thereof provided by the embodiment of the invention can support large-amount card swiping consumption and small-amount quick payment; and simultaneously supports a plurality of secret verification modes.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A POS machine, comprising: a main screen component, an auxiliary screen component and an auxiliary component;
wherein the main screen part includes: a first touch display screen for operation by a cashier;
the sub-screen member includes: the second touch display screen is used for customer operation, and the card inserting module and the card swiping module are used for customer operation;
the auxiliary member includes: the device comprises a machine body, a receipt printer, a scanning device and a non-contact card reading module, wherein the machine body is connected with the first touch display screen and the second touch display screen;
the card swiping module is arranged at the joint of the second touch display screen and the machine body, and the card inserting module is arranged below the second touch display screen and close to one side of the machine body;
the main screen component is controlled by a main screen process, the auxiliary screen component is controlled by an auxiliary screen process, and the main screen component and the auxiliary screen component perform data interaction in a cross-process communication mode; after receiving the checkout information transmitted by the main screen process, the auxiliary screen process returns a message receipt confirmation message to the main screen process so that the main screen process can continue to execute the next step; after receiving the payment result transmitted by the auxiliary screen process, the main screen process returns a message receipt confirmation message to the auxiliary screen process so that the auxiliary screen process can continue to execute the next step;
wherein the auxiliary component further comprises: the rotating shaft is positioned at the joint of the first touch display screen and the machine body and is used for rotating the first touch display screen or the machine body so as to enable the first touch display screen and the second touch display screen to face two opposite directions;
the first touch display screen and the second touch display screen transmit touch signals to a control main board arranged in the machine body through USB interfaces;
wherein, the POS machine is a handheld POS machine.
2. The POS of claim 1, wherein the scanning device comprises at least one of: bar code scanner, camera, fingerprint identification ware.
3. A control method of a POS machine, which is applied to the POS machine according to claim 1 or 2, comprising:
detecting a first operation instruction input by a cashier through the first touch display screen;
sending a first operation result corresponding to the first operation instruction to a second touch display screen;
controlling the second touch display screen to display the first operation result, and detecting a second operation instruction input by a customer through the second touch display screen;
sending a second operation result corresponding to the second operation instruction to the first touch display screen;
and controlling the first touch display screen to display the second operation result.
4. The method of claim 3, wherein after controlling the first touch display screen to display the second operation result, the method further comprises:
detecting a receipt printing instruction input by a cashier through the first touch display screen;
and controlling a receipt printer to print the receipt according to the receipt printing instruction.
5. A method for operating a POS machine, the method being applied to the POS machine of claim 1 or 2, comprising:
detecting a first operation instruction input by a cashier;
generating a first operation result according to the first operation instruction;
sending the first operation result to a second touch display screen;
and receiving a second operation result returned by the second touch display screen.
6. The method of claim 5, wherein after receiving a second operation result returned by the second touch display screen, the method further comprises:
detecting a receipt printing instruction input by a cashier, wherein the receipt printing instruction is used for controlling a receipt printer to print a receipt.
7. A payment method of a POS machine, applied to the POS machine of claim 1 or 2, comprising:
detecting a first operation result sent by a first touch display screen;
displaying the first operation result;
detecting a second operation instruction input by a client;
generating a second operation result according to the second operation instruction;
and sending the second operation result to the first touch display screen.
8. The method of claim 7, wherein detecting a second operation instruction entered by the client comprises:
detecting a first selection instruction input by a customer, wherein the first selection instruction is used for selecting any one of the following payment modes: code scanning payment and card swiping payment;
detecting a second selection instruction input by a client, wherein the second selection instruction is used for selecting any one of the following encryption methods: password verification, fingerprint verification and face brushing verification.
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| CN112216041A (en) * | 2019-07-11 | 2021-01-12 | 阿里巴巴集团控股有限公司 | Double-screen cash register device and system |
| CN112216042A (en) * | 2019-07-12 | 2021-01-12 | 腾讯科技（深圳）有限公司 | Cash register with double display screens, information interaction method and device and medium |
| US10726681B1 (en) * | 2019-07-26 | 2020-07-28 | Clover Network, Inc. | Advanced hardware system for self service checkout kiosk |
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