TWI666601B - System and method based on self-service sales transaction - Google Patents

Abstract

The present invention refers to a system and method based on self-service vending transactions, and particularly to a transaction system and method applied to unmanned vending equipment such as self-service dispensers, self-service vending machines, and self-service washing machines. The system includes at least a host device, at least one Self-service vending equipment and at least one portable device, and the self-service vending equipment and the portable devices can generate a network connection with the host device, wherein the self-service vending equipment has a QR code tag, and the portable device The portable device has a tag scanning unit for reading the QR code tag. Thus, after reading the QR code tag of the self-service vending device through the tag scanning unit of the portable device, the host unit issues a control instruction to conduct a transaction. And, the payment of the transaction amount is completed simultaneously to improve the convenience and efficiency of the transaction, and to improve the security of the transaction.

Description

   System and method based on self-service sales transaction   

The present invention belongs to the technical field of transaction service of a self-service vending device, and specifically refers to a system and method based on self-service vending transactions, so that consumers can complete transaction services by themselves, reduce labor and equipment costs, and improve the security of their transactions Sex.

According to the development of technology and the increase of human costs, the industry has developed a variety of self-service vending equipment for simpler sales services of certain transaction items for consumers to operate and pay for themselves to complete transactions, such as common self-service refueling Machines, self-service vending machines, self-service washing machines and self-service dryers, etc. In terms of its transaction model, it can be divided into traditional coin-operated or connected credit card methods, but in terms of coin-operated, it can only be used for small amounts of transactions, such as self-service vending machines, self-service washing machines, and self-service Clothes dryers, etc., but there are some problems in the transaction. First of all, consumers need to prepare corresponding change to cause inconvenience. The merchants also need to arrange for the recovery and replenishment of coins or banknotes in the equipment, which increases the labor burden, and is also damaged and stolen. As for the self-service dispenser with a large transaction amount, because its location is relatively fixed, it is to install a network unit on the dispenser, a simple point-in-time information system device [Point of Sales, POS device], and a credit card machine. , Using a bank connection via the Internet. After the consumer inserts or senses a credit or financial card to read the data, the consumer operates the refueling gun to perform the refueling action, and after completing the calculation, deducts and prints details Certificate, although this transaction method is more convenient for payment, but because it will read consumer credit or debit card information, in order to improve transaction security, The network connection needs to be set up for a dedicated line. In addition to the aforementioned additional devices, the equipment cost is increased invisibly, making it difficult to be widely used. In addition, the use of credit card machines has the fear of being maliciously retrieved by merchants or hackers. Consumers may also forget to retrieve or damage it after repeated plugging and unplugging, which indirectly causes the risk and inconvenience of transactions; however, with the The rapid development of network communication technology, the development of electronic payment is the most popular. It has the characteristics of convenient payment and fast transaction, and has become one of the most vigorously developed technologies for various merchants. There are many types of electronic payments. For example, the most popular electronic tickets today are electronic cards that use a card as a carrier and a sensor chip inside it. Virtual electronic money can be stored in electronic tickets when consumers consume them. At that time, the electronic ticket only needs to be close to the reader of the store, and the reader will deduct the amount consumed by the consumer in the electronic ticket and quickly complete the transaction. However, before the payment of the e-ticket, there were no security measures to confirm that the current consumer is indeed the owner of the e-ticket. Even if the e-ticket is not used, it can still be consumed, and its security is extremely low.

Another payment method of electronic payment is to use a portable device with near field communication technology [NFC] and a built-in electronic payment application [such as Apple Pay] during the merchant checkout process. The portable device is near the merchant's POS device. Consumers can authorize the service by providing an identification code [including but not limited to entering a password, biometrics], and the credit card that the consumer pre-binds with the electronic payment application is used for debiting. Its problems

It is still the same as the previous method of using a credit card machine. Manufacturers also need to use credit card or debit card data for transactions, because under the consideration of transaction security, their network connection still needs to be set up for dedicated lines, and it is used for self-service. In the vending equipment, each self-service vending device needs to be equipped with a POS device, which indirectly increases the overall construction cost. At the same time, these self-service vending devices are usually set up in unattended places, and if the store's computer is unfortunately poisoned Even if a malicious program is installed, the consumer's transaction information can be easily stolen and may be misappropriated by unlawful persons, causing harm that consumers cannot easily compensate, so there are still concerns about consumer safety.

In other words, although electronic payment has its convenience, the existing application methods cannot be fully applied to unmanned self-service vending equipment. How to solve the aforementioned problems so that self-service vending equipment can have a more convenient, fast and secure transaction mode for consumption. That is, the technical problem to be solved by the present invention.

The reason is that the inventor has in-depth discussion on the problems faced by existing self-service vending equipment for electronic payment, and through the needs of technological development in recent years, through continuous efforts to improve and trial, finally successfully developed a self-service vending transaction. System and method for overcoming shortcomings and inconveniences caused by inconvenient payment and insufficient security.

Therefore, the main purpose of the present invention is to provide a system based on self-service vending transactions, so that electronic payment can be performed through a low-cost system architecture to reduce the construction cost, and can be widely used in self-service vending equipment for unmanned services. It is easy to operate.

In addition, a second main object of the present invention is to provide a method based on self-service vending transactions, which can effectively improve the security of electronic payment transactions, and is convenient and quick to use, and meets the transaction needs of self-service vending equipment.

Based on this, this creation is mainly to achieve the aforementioned purposes and effects through the following technical means: it includes; a host device, which has a processing unit, a member management unit, a merchant management unit, a device management unit , A transmission interface unit, a transaction history generating unit, and a payment unit, wherein the transmission interface unit connected to the processing unit has a consumer interface and a device interface, and a member management unit, a merchant management unit, a device management unit, and a transaction history The generating unit and the payment unit are paired with the processing unit, and the member management unit has an account unit for storing electronic money or a third-party payer and a decoding unit for confirming the member password, and the merchant management unit has An account unit for storing and receiving transaction money; at least one portable device having a processing unit, a label scanning unit, and a display unit, and the processing unit is connected to the consumer interface of the host device through a connection unit , And the tag scanning unit is used for scanning and reading the fast response matrix code At least a vending apparatus which can be manipulated with a control unit of the vending unit of typical functional device, the interface device control unit via a connection unit to connect with a host device, having a QR code label on another vending apparatus.

The invention further has a method for applying the system based on self-service vending transactions. The steps include: step (S11), the consumer scans the QR code tag of the vending device with a portable device; step (S12), the portable The portable device initiates a transaction connection with the host device; step (S13), the host device returns the scanned information of the vending device for the consumer to confirm with the portable device: when the data matches, step (S14) is performed, and when the data does not match When exiting, end the transaction or re-execute step (S11); step (S14), the consumer enters the preset transaction password from the portable device and sends it to the host device: when the transaction password is correct, then proceed to step (S15), When the transaction password is wrong, exit and end the transaction; step (S15), the host device confirms the transaction password and connects to start the automatic vending device for trading; step (S16), the consumer operates the automatic vending device to conduct transactions, and automatically sells the device and continues The transaction data is returned to the host device; step (S17), the vending device completes the self-service transaction and returns it to the host device, and the host device performs the checkout.

With this, through the specific implementation of the above technical means, the system can be applied to a method based on self-service vending transactions, allowing consumers to use the tag scanning unit of a portable device to read the QR code tag of the vending device. After the vending equipment information is confirmed and the transaction password is entered, self-service transactions can be performed, and the payment of the transaction amount is completely performed on the host device, which is extremely convenient and fast to operate. At the same time, there is no need to set up a POS device on the vending equipment. It can reduce the construction cost of the electronic payment system for self-service sales, and consumers do not need to provide electronic payment account information to the merchants to read, so it will not be outflowed due to malicious factors, which greatly improves the security of self-service consumption.

In order to make your reviewers better understand the composition, features, and other purposes of the present invention, the following is a description of the preferred embodiments of the present invention, which will be described in detail with reference to the drawings, and will be implemented by those familiar with the technical field.

(10) ‧‧‧Host equipment

(11) ‧‧‧Processing unit

(12) ‧‧‧Member Management Unit

(121) ‧‧‧Account Unit

(122) ‧‧‧Decoding Unit

(131) ‧‧‧Business Management Unit

(132) ‧‧‧Equipment Management Unit

(136) ‧‧‧Account Unit

(14) ‧‧‧Transmission interface unit

(141) ‧‧‧Consumer interface

(142) ‧‧‧Equipment interface

(143) ‧‧‧Business interface

(15) ‧‧‧Transaction history generation unit

(16) ‧‧‧Payment Unit

(17) ‧‧‧Map generation unit

(18) ‧‧‧Monitoring and identification unit

(19) ‧‧‧Data storage unit

(20) ‧‧‧Portable device

(21) ‧‧‧Processing unit

(22) ‧‧‧Connection unit

(23) ‧‧‧Label Scanning Unit

(24) ‧‧‧Positioning unit

(25) ‧‧‧Display unit

(30) ‧‧‧Self-service vending equipment

(31) ‧‧‧Control unit

(32) ‧‧‧Connection unit

(35) ‧‧‧QR code tag

(40) ‧‧‧Business terminal equipment

(50) ‧‧‧Printing Unit

(60) ‧‧‧Image Acquisition Unit

First diagram: The schematic diagram of the configuration of the system based on the self-service vending transaction of the present invention, for explaining the relative relationship between the units.

Second figure: Schematic diagram of the host device in the system based on self-service vending transactions of the present invention.

Third figure: Schematic diagram of the portable device in the system based on self-service vending transactions of the present invention.

Figure 4: Schematic diagram of the architecture of a self-service vending device in a system based on self-service vending transactions of the present invention, taking a self-service dispenser as an example.

Figure 5: Schematic diagram of the method of the present invention based on self-service vending transactions.

Figure 6: A schematic diagram of the actual operation of the system based on the self-service vending transaction of the present invention.

The present invention is a system and method based on self-service vending transactions. The technical content of the present invention will be described below with specific embodiments, so that those skilled in the art can easily understand the advantages and advantages of the present invention from the content disclosed in this specification. efficacy. However, the present invention can also be implemented or applied in other specific embodiments. Therefore, the specific embodiments of the present invention with accompanying drawings are only for convenience of description, and are not intended to limit the present invention.

The architecture of the system based on the self-service sales transaction of the present invention is shown in the first figure. The system includes at least a host device (10) of a platform vendor, at least one portable device (20) of a consumer, and at least one merchant. The vending device (30), and the host device (10) can communicate with the portable device (20) and the vending device (30) through an Internet interface [such as wireless technology or wired technology], in which consumption The user may be a member who has completed registration with the platform vendor in advance; and the host device (10) includes at least a processing unit (11), a member management unit (12), a merchant management unit (131), and a device management unit (132), a transmission interface unit (14), a transaction history generating unit (15), and a payment unit (16). The processing unit (11) can be built in the operating program of the host device (10) for processing, calculation, comparison, analysis, integration and transmission of data of each unit, and the member management unit of the connection processing unit (11) (12) It is used to process the registration information of each member, and it contains at least an account unit (121) for storing electronic money or a third payment party [such as a bank credit card or debit card account] and a member password for confirmation [ Including the input value or biological characteristics] decoding unit (122), and the merchant management unit (131) of the connection processing unit (11) is used to process the registration data of each merchant, including but not limited to merchant data, and related automatic vending equipment Etc., and at least it includes an account unit (136) that can store transaction receipts, and a device management unit (132) that connects the processing unit (11) and the merchant management unit (131) to process each registered remote Relevant data of self-service vending equipment, including but not limited to corresponding merchants, selling types, prices, inventory, etc .; and the processing unit (11) is connected to a transmission interface unit (14) for the portable device (2 0), automatic vending equipment (30) and merchant terminal equipment (40), the transmission interface unit (14) includes at least a consumer interface (141) for a corresponding member portable device (20) to transmit or receive data and a A device interface (142) for transmitting or receiving data corresponding to the automatic vending device (30), and the transmission interface unit (14) may further have a merchant interface (143) for the merchant to connect through a merchant terminal device (40) , For sending and receiving data from merchants, such as querying the full amount of the account, the transaction status of its own vending equipment (30), etc. The transaction history generating unit (15) of the connection processing unit (11) is used for a member to generate a correlation of a transaction event when a transaction event is completed by a portable device (20) with an automatic vending device (30). The transaction content includes, but is not limited to, member information of participating in the transaction, the internal code of the portable device (20), the code of the vending device (30), the transaction place, the transaction time, the number of transactions, or the transaction amount, etc. As for the host device (10 ) 'S payment unit (16) is connected to the processing unit (11), and this payment unit (16) can be used to transfer the transaction amount from the account unit (121) of the member management unit (12) of the participating trading member to the merchant management The account unit (136) of the unit (131); and the platform device (10) further includes a map generating unit (17) connected to the processing unit (11), which is used to graphically sell each automatic vending device (30) The location is marked on an electronic map for consumers to connect to the consumer interface (141) of the transmission interface unit (14) of the host device (10) through the portable device (20) to query the vending equipment through the electronic map (30) position; another host device (10 ) Further has a monitoring and identification unit (18) connected to the processing unit (11), which is used to obtain the image of the transaction place, for transaction history records, or to identify the license plate number, etc., to improve the security of the transaction; The host device (10) is further provided with one or more data storage units (19) connected to the processing unit (11) for storing the data generated by the aforementioned units; as shown in the third figure, the portable The portable device (20) can be a handheld mobile device [such as a smart phone, personal digital assistant, tablet computer] that can be connected to the host device (10) using the device interface (14) through network communication. The portable device (20) A processing unit (21) with a built-in application [APP], the processing unit (21) is connected with a connection unit (22) for consumers who use the device interface (14) with the host device (10) The interface (141) is connected to receive or transmit related data, and the portable device (20) has a label scanning unit (23) connected to the processing unit (21) for scanning and reading a fast response matrix code [Quick Response Code, QR Code], let the The portable device (20) can quickly form a connection with the transmission interface unit (14) of the host device (10) through the connection unit (22), and the portable device (20) has a connection processing unit (21) A display unit (25) for displaying data read or returned by the host device (10) through an application built in the processing unit (21), and the portable device (20) further has a positioning unit (24) [GPS] to provide the map generating unit (17) of the host device (10) to collect the geographical location for starting the query and navigation function of the electronic map to confirm all the vending devices near the consumer's location (30 ) And navigate; as for the vending device (30) as shown in the fourth figure, the vending device (30) may be a self-service dispenser or a self-service vending machine selected from a typical unmanned service. , Self-service washing machines and self-service clothes dryers and other equipment, which have the basic functions and functional units of the original equipment, and the automatic vending equipment (30) further includes a control unit (31) and a connection unit (32), so that the control The unit (31) can communicate with the host device (10) through the connection unit (32). ) Use the device interface (142) of the device interface (14) to connect to receive or transmit related information, and the control unit (31) can be used to receive the control instructions of the host device (10) and collect the vending device ( 30), and the vending device (30) has a QR code label (35). The QR code label (35) can be a label sticker or a sticker attached to the vending device (30). The label image displayed on the display. Furthermore, the automatic vending devices (30) can be separately or jointly connected to a printing unit (50) for receiving transaction information of the host device (10) and printing a transaction detail or transaction voucher, such as a unified invoice, and the automatic vending The device (30) can further separately or jointly connect an image capture unit (60) for capturing still or dynamic images during the transaction, and transmit it to the host device (10) through the connection unit (32) for transaction history If used in self-service dispensers, it can further identify the license plate number for the host device (10) to determine whether it is an authorized vehicle registered by the member and further improve the transaction security; thereby, the group constitutes a transaction operation that is convenient and fast, and A security-based system based on self-service sales transactions.

Please refer to the first figure. When the system based on the self-service vending transaction of the present invention is used to conduct transactions on the automatic vending device (30), please refer to the fifth and sixth figures. The method of the present invention is based on the self-service vending transaction. It is implemented according to the following steps, taking the self-service dispenser as an example: step (S11), the consumer scans the QR code tag of the vending device with a portable device: when the consumer arrives at the vending device (30) by car After the refueling area of the machine, the consumer uses the tag scanning unit (23) of the portable device (20) to scan and read the QR code tag (35) on the vending device (30) to be traded; step (S12 ). The portable device initiates a transaction connection with the host device: the processing unit (21) of the portable device (20) uses the transmission unit (22) and the host device (10) to transmit through the fast response matrix code. The consumer interface (141) of the interface unit (14) generates a quick link, and the host device (10) compares the data in the device management unit (132); step (S13), the host device sends back scanned automatic sales equipment information For consumers to confirm with a portable device: After the host device (10) confirms that the QR code tag (35) code is a registered vending device (30), it returns the information of the vending device (30) to the portable device (20), including but not limited to The machine code of the vending device (30), the owner of the business, the goods sold, the geographical location, etc., are for consumers to confirm. If the data of the vending device (30) meets, step (S14) is performed. The data does not match the data of the automatic vending device (30), then exit and end the transaction or re-execute step (S11); step (S14), the consumer enters the preset transaction password from the portable device and sends it to the host device: After the consumer confirms that the information matches the vending device (30), the host device (10) further requires the consumer to enter a preset transaction password, such as a value or fingerprint, on the portable device (20) and send it to The host device (10) is identified and confirmed by the decoding unit (122) of its member management unit (12). If the transaction password is correct, then proceed to step (S15); otherwise, if the transaction password is incorrect, after the preset number of inputs is reached Exit to end the transaction; step (S15 ). After the host device confirms the transaction password, it connects to start the automatic vending device for trading: After the host device (10) confirms that the transaction password is correct, the host device (10) starts through the device interface (142) of the transmission interface unit (14). The automatic vending device (30) enters a mode that can be traded, for example, a refueling gun can be operated to output oil [or a self-service vending machine can be purchased, a self-service washing machine can be started to perform a laundry function, etc.], and then step (S16 ); Step (S16), the consumer operates the automatic vending device to conduct transactions, and the automatic vending device continues to transmit transaction data to the host device: the consumer starts to use the automatic vending device (30) for transactions, such as using a refueling gun to refuel [Or purchase goods and perform laundry], and the automatic vending device (30) continues to return transaction data to the host device (10), such as the cumulative output of oil guns [or the type and quantity of goods purchased , Laundry time], and then execute step (S17); step (S17), the vending device completes the self-service transaction and sends it back to the host device, and the host device performs the checkout: when the consumption When the person completes the self-service transaction, such as stopping the oil transfer action of the oil gun [or the purchase of the product is completed, the laundry is finished], the completed transaction data [including but not limited to the amount of oil, amount, etc.] is returned to the host device (10) The payment unit (16) of the host device (10) transfers the electronic money in the account unit (121) of the member management unit (12) to the account unit (136) of the merchant management unit (131) If it is a bank credit card or financial card that is linked to a third payer, the host device (10) sends the payment certificate to the third payer, and the third payer pays the amount and returns it to the host device ( 10), complete the checkout, and generate transaction details or electronic records of vouchers, and end the self-service transaction. Step (18) can be further performed; step (S18), the host device establishes, records, and stores the history of the transaction: After the self-service transaction is ended, the processing unit (11) of the host device (10) can pass the transaction The resume unit (15) generates a transaction history based on the data generated or obtained during the transaction, including but not limited to consumer information, vending equipment (30) information, transaction content or transaction status, etc., for future consumers or merchants to conduct Transaction inquiry, statistics or dispute resolution.

In order to further improve the convenience, security, and practicability of self-service transactions, the method of the present invention can optionally add the following steps; step (S121), the host device confirms whether the portable device is a registered and authorized device: Consumers are registered members The internal code of the portable device (20) can be registered in advance. When the portable device (20) is connected to the host device (10), the host device (10) performs the portable device. (20) identification, if it is a pre-registered portable device (20), then execute step (13); otherwise, if it is not a pre-registered portable device (20), exit and end the transaction.

Step (S141): The vending device obtains the image of the transaction target and sends it back to the host device to confirm whether it is an authorized transaction target: When registering a member, the consumer can pre-register the authorized transaction target, such as the license plate number of a vehicle that can be self-serviced, and the The vending device (30) is connected with an image capture unit (60), so that after the image capture unit (60) obtains the image of the vehicle license plate, it can be transmitted back to the host device (10) and identified by the host device (10) After comparing the preset data in the member management unit (12), if it is the authorized transaction target, step (S15) is executed, otherwise the unauthorized transaction target is exited to end the transaction.

In step (S151), the host device pre-calculates the maximum transaction amount and generates a warning limit signal: the host device (10) can confirm the balance of the transaction password through the account unit (121) of the member management unit (12) Calculate the maximum transaction amount, or connect to a third payment party to confirm the maximum transaction amount available, and generate a warning message and send it to the portable device (20) to remind consumers to pay attention, and send a restriction message to the vending device (30) Control unit (31) to avoid excessive consumption, and then step (16) is performed.

Step (S171), the host device sends the transaction content to the automatic vending device for printing the transaction details voucher: After completing the checkout of the self-service transaction, the consumer can send an inquiry via the host device (10) or through a portable The device (20) requests the host device (10) to print the transaction details or vouchers. The host device (10) can transmit the transaction details or the data required by the vouchers to the printing unit (50) of the vending device (30). ) Printed out and handed over to the consumer.

From the above description, it can be known that the system and method of the present invention based on self-service vending transactions allow consumers to use the tag scanning unit (23) of the portable device (20) to read the QR code label of the vending device (30) ( 35), after confirming the information of the automatic vending equipment (30) and entering the transaction password, self-service transactions can be performed, and the payment of the transaction amount is completely performed on the host device (10), which is extremely convenient and fast in operation; meanwhile, There is no need to install a POS device on the vending device (30), which reduces the overall construction cost invisibly. At the same time, it is not necessary to provide electronic payment account information to the merchant to read, without causing the merchant's computer poisoning or even Malicious installation of profile recording programs has led to theft of consumer electronic payment vouchers and transaction information, greatly improving the security of self-service consumption, thereby increasing the added value of products and increasing their economic benefits.

In summary, it can be understood that the present invention is an excellent creative creation. In addition to effectively solving the problems faced by the practitioners, it greatly improves the efficacy. In the same technical field, no identical or similar product creation or It is used publicly and has the enhancement of efficacy. Therefore, the present invention has already met the requirements of "newness" and "progressiveness" of the invention patent, and has applied for an invention patent in accordance with the law.

Claims (10)

A system based on self-service selling transactions includes: a host device having a processing unit, a member management unit, a merchant management unit, a device management unit, a transmission interface unit, a transaction history generation unit, and a payment Unit, wherein the transmission interface unit connected to the processing unit has a consumer interface and a device interface, and the member management unit, merchant management unit, device management unit, transaction history generation unit, and payment unit are paired with the processing unit, and the The member management unit has an account unit for storing electronic money or a third-party payer and a decoding unit for confirming the member password. In addition, the merchant management unit has an account unit for storing transaction receipts; at least one The portable device has a processing unit, a label scanning unit and a display unit. The processing unit is connected to the consumer interface of the host device through a connection unit, and the label scanning unit is used for scanning and reading the fast response matrix code ; At least one vending device having a controllable The control unit typically trafficking of device function unit, the control unit via a connection device and a host device interface unit to connect the other vending having a QR code label on the device. For example, the system based on self-service sales transactions described in item 1 of the scope of patent application, wherein the transmission interface unit of the host device may further have a merchant interface for the merchant to connect through a merchant terminal device for transmitting and receiving data from the merchant . The system based on self-service vending transactions as described in item 1 of the scope of patent application, wherein the host device further includes a map generating unit connected to a processing unit for graphically marking the location of each vending device on an electronic device. In the map, the portable device has a positioning unit for the portable device to query the position of the vending device through electronic maps and perform navigation. For example, the system based on self-service vending transactions described in item 1 of the scope of the patent application, wherein the host device is further provided with one or more data storage units connected to a processing unit for storing data generated by the aforementioned units. A method applied to the system based on self-service vending transactions described in item 1 of the scope of patent application, the steps include: step (S11), the consumer scans the QR code tag of the vending device with a portable device; step (S12) ), The portable device initiates a transaction connection with the host device; step (S13), the host device sends back the scanned vending device information for consumers to use the portable device to confirm: when the data matches, step (S14) is performed, When the data does not match, exit and end the transaction or re-execute step (S11); step (S14), the consumer enters the preset transaction password from the portable device and sends it to the host device: when the transaction password is correct, then continue to execute the step (S15), when the transaction password is wrong, exit and end the transaction; step (S15), the host device confirms the transaction password and starts the automatic vending device for trading; step (S16), the consumer operates the automatic vending device to conduct the transaction, automatically Sell the device and continue to return the transaction data to the host device; step (S17), the automatic selling device completes the self-service transaction back to the host device, and the host device performs the checkout The method based on the self-service sales transaction as described in item 5 of the scope of patent application, wherein after this step (S17), there is a step (S18), the host device establishes, records and stores the history of the transaction. For example, the method based on self-service selling transaction described in item 5 of the scope of patent application, wherein step (S12) can be added with a step (S121), the host device confirms whether it is a portable device authorized for registration: when it is pre-registered The portable device executes step (13), and when it is a non-preregistered portable device, it exits and ends the transaction. The method based on self-service sales transaction as described in item 5 of the scope of patent application, wherein after step (S14), a step (S141) is added, and the image of the transaction target obtained by the automatic vending device is returned to the host device to confirm whether it is the authorized transaction target: The vending device can be connected with at least one image capture unit, and the host device has a monitoring and identification unit connected to the processing unit. When the image capture unit obtains an image, it is recognized and compared by the host device as a preset authorization. If the subject of the transaction is executed, step (S15) is executed. When the subject of the non-predetermined authorized transaction is exited, the transaction is terminated. The method based on self-service sales transaction as described in item 5 of the scope of patent application, wherein the step (S15) further has a step (S151), the host device pre-calculates the maximum transaction amount, and generates a warning limit signal. The method based on self-service vending transaction as described in item 5 of the scope of patent application, wherein step (S17) is further added with a step (S171), the host device transmits the transaction content to the vending device, and the host device receives a printing instruction After that, you can send the transaction details or the information required by the voucher to the printing unit of the vending device for printing.