TW201837803A - System and method based on self-service selling transaction improving the convenience and the efficiency of the transaction and enhancing the security of the transaction - Google Patents

Abstract

This invention relates to a system and a method based on self-service selling transaction, particularly to a transaction system and method applied to unmanned advertising devices such as a self-service refueling machine, a self-service vending machine and a self-service laundry machine. The system includes at least one host device, at least one self-service selling device and at least one portable apparatus, wherein the self-service selling devices and the portable apparatuses may be connected with the host devices via a network, wherein the self-service selling device has a QR code label, and the portable apparatus has a label scanning unit for reading the QR code label. Accordingly, after the label scanning unit of the portable apparatus reads and identifies the QR code label of the self-service selling device, the host unit sends a control instruction for transaction, and completes the payment of a transaction amount simultaneously, so that the convenience and the efficiency of the transaction are improved, and the security of the transaction is enhanced.

Description

 System and method based on self-service trafficking transaction  

The invention belongs to the technical field of transaction service of self-service selling equipment, in particular to a system and method based on self-service selling transaction, so that the consumer can complete the transaction service by itself, reduce the cost of manpower and equipment, and enhance the security of the transaction. Sex.

According to the development of technology and the increase of labor costs, in the simpler sales service of some trading projects, the industry has developed a variety of self-service vending equipment for consumers to operate and pay for their own transactions, such as the common self-service refueling. Machines, self-service vending machines, self-service washing machines and self-service dryers, etc. In terms of its trading model, it can be divided into traditional coin-operated or connected credit card methods, but in the case of coin-operated, it can only be used for small-value transactions, such as self-service vending machines, self-service washing machines and self-service. Dryers, etc., but the transaction is somewhat troublesome. First of all, consumers need to prepare the corresponding change to cause inconvenience. The merchants also need to arrange for the recycling and replenishment of coins or banknotes in the equipment, which increases the manpower burden and is also damaged and stolen. The possibility is that the self-service tanker with a larger transaction amount is because it has a fixed location, it is a network unit installed on the tanker, and the point of sales (hereinafter referred to as POS device) and credit card machine. By using the Internet connection banking method, when the consumer inserts or senses the credit card or the financial card to read the data, the consumer operates the refueling gun to perform the refueling action, and after the completion, the price, deduction and printing details or Voucher, although this type of transaction is more convenient for payment, it will read the consumer credit card or financial card information, in order to improve transaction security. The network connection needs to be set for the dedicated line. Together with the aforementioned additional devices, the invisible increases the equipment cost, making it difficult to be widely used. In addition, in addition to the doubts that the merchant or the hacker maliciously retrieves the data, the consumer may forget the problem of being retrieved or damaged multiple times, and the invisible risks and inconveniences of the transaction; The rapid development of network communication technology, the development of electronic payment is the most popular, and it has the characteristics of convenient payment and fast transaction, and has become one of the technologies developed by various businesses. There are many types of electronic payment, such as the most popular electronic ticket today. The electronic ticket uses a card as a vehicle, which contains a sensor chip, and can store virtual electronic money in an electronic ticket when the consumer consumes it. When the electronic ticket is only required to be close to the reader of the store, the reader will deduct the amount consumed by the consumer in the electronic ticket and complete the transaction quickly. However, before the electronic ticket is paid, there is no security measure to confirm that the current consumer is the owner of the electronic ticket. Even if the electronic ticket is not used, it can be consumed, and its security is extremely low.

Another payment method for electronic payment is to use a portable device with a near field communication technology [NFC] and a built-in electronic payment application (such as Apple Pay) in the merchant checkout process, which consumes when the entity merchant consumes The portable device is placed close to the POS device of the merchant. The consumer can authorize the service by providing an identification code (including but not limited to inputting a password, biometric identification), and the credit card pre-bound by the consumer to the electronic payment application is debited. Its problems

Still the same as the above method of using the credit card machine, the manufacturer needs to use the information of reading the credit card or the financial card to conduct the transaction, because in the transaction security consideration, the network connection still needs to be set for the dedicated line, and if it is used for self-service. In the sales equipment, each self-service selling device needs to be equipped with a POS device. The invisible room increases the overall construction cost, and at the same time, because the self-service selling equipment is usually placed in an unattended place, and if the computer of the store is unfortunately poisoned Even malicious installation of the side-recording program, consumer transaction information can be easily stolen, and may be stolen by unscrupulous people, causing consumers to make up for the damage, so there is still doubts about consumer safety.

In other words, although electronic payment has its convenience, the existing application methods are difficult to be fully applied to self-service vending equipment for unattended services. How to solve the above problems, so that self-service sales equipment can have a more convenient, fast and safe transaction mode. 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 has succeeded in developing a self-service sales transaction through continuous improvement and trial work through the demand for technological development in recent years. The system and its method are used to overcome the shortcomings and inconveniences caused by the inconvenience of payment and the lack of security.

Therefore, the main object of the present invention is to provide a system based on self-service trafficking, whereby electronic payment can be implemented through a low-cost system architecture, thereby reducing the cost of construction, and can be widely applied to self-service vending equipment for unattended services. It is easy to operate.

Moreover, the second main object of the present invention is to provide a method based on self-service trafficking, which can effectively improve the transaction security of electronic payment, and is convenient and rapid to use, and meets the transaction requirements of self-service selling equipment.

Based on this, the present invention mainly implements the foregoing purposes and functions through the following technical means: it includes; a host device having a processing unit, a member management unit, a merchant management unit, and 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 the member management unit, the merchant management unit, the device management unit, and the 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 connecting to the third payer and a decoding unit for confirming the member password, and the merchant management unit has An account unit for storing transaction receipts; at least one portable device having a processing unit, a label scanning unit and a display unit, the processing unit being connected to the consumer interface of the host device through a connection unit And the label scanning unit is used for scanning to read 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 present invention further has a method for applying the system based on the self-service vending transaction, the steps comprising: step (S11), the consumer scanning the QR code label of the vending device with the portable device; step (S12), portable The device and the host device initiate a transaction connection; in step (S13), the host device returns the scanned automatic vending device information for the consumer to confirm with the portable device: when the data is met, the step (S14) is performed, when the data does not match If the transaction password is correct, then the step is continued (S15) When the transaction password is incorrect, the transaction is terminated; in step (S15), after the host device confirms the transaction password, the connection initiates the automatic vending device for transaction; in step (S16), the consumer operates the vending device to conduct the transaction, and automatically sells the device and continues The transaction data is returned to the host device; in step (S17), the vending device completes the self-service transaction back to the host device, and the host device performs checkout.

Therefore, through the specific implementation of the above technical means, the system can be applied to a self-service-selling transaction method, which enables a consumer to use the label scanning unit of the portable device to read the QR code label of the automatic selling device. After the vending equipment information is confirmed and the transaction password is entered, the self-service transaction can be performed, and the payment of the transaction amount is completely performed on the host device, and the operation is extremely convenient and rapid, and at the same time, it is not necessary to set the POS device on the vending device. The cost of self-service electronic payment system can be reduced, and the consumer does not need to provide the electronic payment account information to the merchant to read, so it does not flow out due to malicious factors, greatly improving the safety of self-service consumption.

The preferred embodiments of the present invention are set forth in the accompanying drawings, and in the claims

(10)‧‧‧Host equipment

(11)‧‧‧Processing unit

(12)‧‧‧Member Management Unit

(121)‧‧‧ Account Unit

(122)‧‧‧Decoding unit

(131)‧‧‧Business Management Unit

(132)‧‧‧Device Management Unit

(136)‧‧‧ Account Unit

(14)‧‧‧Transport interface unit

(141)‧‧‧ Consumer Interface

(142)‧‧‧Device interface

(143)‧‧‧Business interface

(15)‧‧‧Transaction history generation unit

(16)‧‧‧Payment unit

(17)‧‧‧Map generation unit

(18)‧‧‧Monitoring Identification Unit

(19)‧‧‧Data storage unit

(20)‧‧‧Portable devices

(21) ‧‧‧Processing unit

(22)‧‧‧Connecting unit

(23)‧‧‧Label scanning unit

(24)‧‧‧ Positioning unit

(25)‧‧‧Display unit

(30)‧‧‧ self-service selling equipment

(31) ‧‧‧Control unit

(32)‧‧‧Connecting unit

(35)‧‧‧QR code label

(40) ‧‧‧Business terminal equipment

(50)‧‧‧Printing unit

(60)‧‧‧Image capture unit

First figure: A schematic diagram of the configuration of the system based on the self-service vending transaction of the present invention for explaining the relative relationship of each unit.

Second figure: The schematic diagram of the architecture of the host device in the system based on the self-service trafficking transaction of the present invention.

Third figure: Schematic diagram of the architecture of the portable device in the system based on the self-service selling transaction of the present invention.

The fourth figure: The architecture diagram of the self-service selling device in the system based on the self-service selling transaction of the present invention, taking the self-service refueling machine as an example.

Figure 5: Schematic diagram of the flow of the method based on self-service trafficking in the present invention.

Fig. 6 is a schematic view showing the state of the system based on the self-service selling transaction in the actual operation of the present invention.

The present invention is a system for self-selling transactions and a method thereof. The technical content of the present invention will be described in the following specific embodiments, so that those skilled in the art can easily understand the advantages and advantages of the present invention from the contents disclosed in the present specification. efficacy. The invention may be embodied or applied by other different embodiments. Therefore, the specific embodiments of the present invention are to be considered as illustrative and not restrictive.

The architecture of the system based on the self-service vending transaction is as shown in the first figure, the system includes at least one platform device (10) of the platform vendor, at least one consumer device (20) 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), wherein the consumption is The host device (10) includes at least one 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 working program of the host device (10) for processing, computing, comparing, analyzing, integrating and transmitting the data of each unit, and the member management unit of the connection processing unit (11) (12) for processing the registration data of each member, and at least one account unit (121) for storing electronic money or a third payer [such as a bank credit card or a financial card account] and a confirmation member password [ a decoding unit (122) including an input value or a biological characteristic, and a merchant management unit (131) of the connection processing unit (11) for processing registration data of each merchant, including but not limited to merchant information, related automatic sales equipment And, at least, it has at least one account unit (136) for storing the transaction payment, and the connection management unit (11) and the device management unit (132) of the merchant management unit (131) are configured to process the remote ends of each registration. The relevant information of the self-service selling device includes, but is not limited to, the corresponding merchant, the type of the sale, the price, the inventory, and the like; and the processing unit (11) is connected with a transmission interface unit (14) for the portable device (2) 0), a vending device (30) and a merchant terminal device (40), the transmission interface unit (14) comprising at least one consumer interface (141) and a device for transmitting or receiving data by the corresponding member portable device (20) And a device interface (142) for transmitting or receiving data corresponding to the vending device (30), wherein the transmission interface unit (14) further has a merchant interface (143) for the merchant to connect through a merchant terminal device (40) For transmitting and receiving information from merchants, such as checking the full amount of the account, the trading status of the owned vending equipment (30), and the like. The transaction history generating unit (15) of the connection processing unit (11) is configured to generate a transaction event when a member completes a transaction event with respect to an automatic vending device (30) by using the portable device (20). The transaction content, including but not limited to the member information of the participating transaction, the portable device (20) internal code, the vending equipment (30) code, the transaction location, the transaction time, the transaction amount or the transaction amount, etc., as for the host device (10) The payment unit (16) is connected to the processing unit (11), and the payment unit (16) is adapted to transfer the transaction amount to the merchant management in the account unit (121) of the member management unit (12) participating in the transaction member. An account unit (136) of the unit (131); the platform device (10) further comprising a map generating unit (17) connected to the processing unit (11) for graphically displaying each vending device (30) The location is indicated in an electronic map for the consumer 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 device through the electronic map. (30) location; another host device (10 Further, there is a monitoring and identifying unit (18) connected to the processing unit (11) for obtaining an image of a trading place for transaction history records, or for identifying a license plate number, etc., for enhancing the security of the transaction; The host device (10) further includes one or more data storage units (19) connected to the processing unit (11) for storing data generated by the foregoing units; and as shown in the third figure, the portable device (10) The device (20) may be a handheld mobile device (such as a smart phone, a personal digital assistant, a tablet computer) capable of connecting to the device interface (14) of the host device (10) through network communication, the portable device (20) A processing unit (21) having a built-in application [APP], the processing unit (21) being connected to a connection unit (22) for use by the host device (10) to use the device interface (14) 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, hereinafter referred to as QR Code], let this 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) The display unit (25) is configured to display, by the application built in the processing unit (21), the data returned by the host device (10), and the portable device (20) further has a positioning unit. (24) [GPS], in order to provide the map generating unit (17) of the host device (10) to collect the geographical location for initiating the electronic map query and navigation function to confirm all the vending devices near the consumer's location (30) Positioning and navigating; as described, the automatic vending device (30) is as shown in the fourth figure, and the vending device (30) may be selected from a typical unmanned self-service refueling machine, a self-service vending machine. The self-service washing machine and the self-service drying machine have the basic functions and functional units of the original equipment, and the automatic selling equipment (30) further comprises a control unit (31) and a connecting unit (32) for controlling The unit (31) can communicate with the host device through the connection unit (32) (10) The device interface (142) of the device interface (14) is connected to receive or transmit related data, and the control unit (31) is configured to receive the control command of the host device (10) and collect the vending device ( 30) the sales and transaction data, and the vending device (30) has a QR code label (35), and the QR code label (35) may be a label sticker attached to the vending device (30) or Displayed on the label image of the display. Furthermore, the vending devices (30) may separately or jointly connect a printing unit (50) for receiving transaction details of the host device (10) and printing a transaction detail or transaction voucher, such as a unified invoice, and the vending. The device (30) may further or separately connect an image capturing unit (60) for capturing static or dynamic images during the transaction, and transmitting to the host device (10) through the connecting unit (32) for transaction history. The record, such as for the self-service refueling machine, further identifies the license plate number for the host device (10) to determine whether it belongs to the authorized vehicle registered by the member, thereby further improving transaction security; thereby, the group constitutes a transaction operation that is convenient and rapid, and A system based on self-service trafficking transactions with high security.

Referring to the first figure, when the self-selling transaction-based system of the present invention is applied to the vending device (30), please refer to the fifth and sixth figures, and the present invention is based on the self-service trafficking method. According to the following steps, the self-service dispenser is taken as an example: step (S11), the consumer scans the QR code label of the automatic selling device with the portable device: when the consumer drives to the self-selling device (30) After the fueling area of the machine, the consumer uses the label scanning unit (23) of the portable device (20) to scan and read the QR code label (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) transmits the connection unit (22) and the host device (10) through the fast response matrix code. The consumer interface (141) of the interface unit (14) generates a quick link, the host device (10) compares the data in the device management unit (132); the step (S13), the host device returns the scanned automatic vending device information For consumers to confirm with a portable device: After confirming that the QR code tag (35) code is the registered vending device (30), the host device (10) 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's business, the merchandise, the geographical location, etc., are for confirmation by the consumer, and if the information of the vending device (30) is met, the step (S14) is performed, such as returning If the information does not match the information of the vending device (30), the transaction is terminated or the step is re-executed (S11); in step (S14), the consumer inputs the default transaction password to the host device by the portable device: After the consumer confirms that the data is compatible with the vending device (30), the host device (10) further requires the consumer to input a preset transaction password, such as a numerical value or fingerprint, on the portable device (20) and transmit it to the The host device (10) is identified by the decoding unit (122) of the member management unit (12), and if the transaction password is correct, the step (S15) is continued; if the transaction password is incorrect, the preset input number is reached. Exit the closing transaction; step (S15 After the host device confirms the transaction password, the connection initiates the transaction for the automatic vending device: when the host device (10) confirms that the transaction password is correct, the host device (10) is activated through the device interface (142) of the transmission interface unit (14). The vending device (30) enters a mode in which the transaction can be performed, for example, the refueling gun can be operated to output oil (or the self-service vending machine can be purchased, the self-service washing machine can be activated to perform the laundry function, etc.), and then the steps are performed (S16) Step (S16), the consumer operates the vending device to conduct a transaction, automatically sells the device and continuously returns the transaction data to the host device: the consumer starts to use the vending device (30) to conduct a transaction, for example, using a refueling gun to refuel [Or purchase goods, perform laundry], and the vending equipment (30) continues to return transaction data to the host device (10), such as the cumulative output oil volume of the oil gun [or the type and quantity of goods purchased) , laundry time], then perform the step (S17); step (S17), the vending device completes the self-service transaction back to the host device, and the host device performs checkout: when the consumer When the self-service transaction is completed, for example, the oil pumping operation of the oil gun is stopped [or the product purchase is completed, the laundry is completed], and the completed transaction data [including but not limited to the amount of oil, the 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 belongs to a bank credit card or a financial card linked to the third payer, the host device (10) sends the payment certificate to the third payer, and the third payer performs the amount payment and returns the report to the host device ( 10), complete the checkout, and generate a transaction detail or voucher electronic record, and end the self-service transaction. Further performing the step (18); the step (S18), the host device establishing, recording, and storing 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 information 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. Transaction inquiry, statistics or dispute handling.

In order to further improve the convenience, security and practicability of the self-service transaction, the method of the present invention may optionally add the following steps; step (S121), the host device confirms whether it is a registered authorized portable device: the consumer is a registered member. The internal code of the portable device (20) can be pre-registered, and when the portable device (20) is connected to the host device (10), the portable device is performed by the host device (10). (20) Identification, if the pre-registered portable device (20) performs step (13), and if not the pre-registered portable device (20) exits the closing transaction.

Step (S141), the vending device obtains the image of the transaction target and transmits it back to the host device to confirm whether it is an authorized transaction target: when the consumer registers the member, the user may pre-register the authorized transaction target, for example, the vehicle license plate number for self-service refueling, and the The automatic vending device (30) is connected to the image capturing unit (60). When the image capturing unit (60) obtains the vehicle license plate image, it can be transmitted back to the host device (10) and identified by the host device (10). After comparing the preset materials in the member management unit (12), if the authorized transaction target is executed, the step (S15) is performed; otherwise, the unauthorized transaction target is terminated and the transaction is terminated.

Step (S151), the host device pre-calculates the highest transaction amount, and generates a warning restriction signal: the host device (10) may pass the account unit (121) balance of the member management unit (12) after the consumer completes the confirmation of the transaction password. Calculate the maximum transaction amount, or connect the third payer to confirm the highest transaction amount available, and generate a warning message to the portable device (20) to alert the consumer and send the restriction message to the vending device (30) The control unit (31) avoids excessive consumption, and then performs step (16).

Step (S171), the host device transmits the transaction content to the vending device for printing the transaction detail voucher: after completing the checkout of the self-service transaction, the consumer can send the inquiry via the host device (10) or through the portable The device (20) requests the host device (10) to print the transaction details or credentials, and the host device (10) can transmit the transaction details or the documents required for the voucher to the printing unit of the vending device (30) (50) ) Printed and handed over to consumers.

As can be seen from the above description, the present invention is based on a system and method for self-selling transactions, which enables a consumer to read the QR code label of the vending device (30) using the label scanning unit (23) of the portable device (20) ( 35) After the confirmation and input transaction password is confirmed by the vending equipment (30), the self-service transaction can be performed, and the payment of the transaction amount is completely performed on the host device (10), and the operation is extremely convenient and rapid; There is no need to set up a POS device on the vending device (30) as in the case of the applicator, which reduces the overall construction cost, and does not need to provide the account information of the electronic payment to the merchant to read, without being poisoned by the computer of the merchant or even The malicious installation of the side-recording program causes the consumer's electronic payment vouchers and transaction information to be stolen, greatly improving the security of self-service consumption, thereby increasing the added value of the product and enhancing its economic benefits.

In summary, it can be understood that the present invention is an excellent creation, in addition to effectively solving the problems faced by the practitioners, and greatly improving the efficiency, and the same or similar product creation or the same technical field is not seen or The invention has been used publicly and has the effect of improving the efficiency. Therefore, the present invention has met the requirements for "novelty" and "progressiveness" of the invention patent, and is the invention of the invention patent.

Claims (10)

 A self-service vending transaction system, comprising: 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 generating unit, and a payment a unit, wherein the transmission interface unit connected to the processing unit has a consumer interface and a device interface, and the member management unit, the merchant management unit, the device management unit, the transaction history generation unit, and the payment unit are paired with the processing unit, and the The member management unit has an account unit for storing electronic money or connecting to the third payer and a decoding unit for confirming the member password, and the merchant management unit has an account unit for storing the transaction payment amount; 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 steerable self 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.    The self-service vending transaction system of claim 1, wherein the transmission interface unit of the host device further has a merchant interface for the merchant to connect through a merchant terminal device for transmitting and receiving data from the merchant. .    The self-service vending transaction-based system of claim 1, wherein the host device further comprises a map generating unit connected to the processing unit for graphically indicating the location of each vending device to an electronic device. In the map, the portable device has a positioning unit for the portable device to query the location of the vending device through an electronic map and to navigate.    The self-service vending transaction-based system of claim 1, wherein the host device is provided with one or more data storage units connected to the processing unit for storing data generated by the foregoing units.    A method for applying the self-service vending transaction-based system according to claim 1 of the patent, the method comprising the steps of: (11), the consumer scanning the QR code label of the vending device with the portable device; and the step (S12) The portable device initiates a transaction connection with the host device; in step (S13), the host device returns the scanned automatic vending device information for the consumer to confirm by using the portable device: when the data is consistent, the step (S14) is performed, When the data is not met, the transaction is terminated or the step is re-executed (S11); in step (S14), the consumer inputs the preset transaction password to the host device by the portable device: when the transaction password is correct, then the step is continued. (S15), when the transaction password is wrong, the transaction is terminated; in step (S15), after the host device confirms the transaction password, the connection initiates the automatic vending device for the transaction; step (S16), the consumer operates the vending device to conduct the transaction, and automatically Selling equipment and continuously returning transaction data to the host device; step (S17), the vending device completes the self-service transaction back to the host device, and the host device performs checkout    The method of self-sales transaction according to claim 5, wherein the step (S17) has a step (S18), the host device establishes, records and stores the history of the transaction.    The method of self-service vending transaction as described in claim 5, wherein the step (S12) may add a step (S121), and the host device confirms whether it is a registered authorized portable device: when pre-registered The portable device performs step (13), and when it is a non-pre-registered portable device, the transaction is terminated.    The method of self-service vending transaction according to claim 5, wherein the step (S14) adds a step (S141), and the vending device obtains the image of the transaction target and transmits it back to the host device to confirm whether it is an authorized transaction target: The automatic vending device can be connected to at least one image capturing unit, and the host device has a monitoring and identifying unit connected to the processing unit. When the image capturing unit acquires an image, the host device identifies and compares the preset authorization. The transaction target performs the step (S15), and when it is a non-predetermined authorized transaction target, the transaction is terminated.    The method of self-service vending transaction according to claim 5, wherein the step (S15) further has a step (S151), the host device pre-calculates the highest transaction amount, and generates a warning restriction signal.    The method of self-service vending transaction according to claim 5, wherein the step (S17) further adds a step (S171), the host device transmits the transaction content to the vending device, and the host device receives the printing instruction. Thereafter, the transaction details or the documents required for the voucher can be transmitted to the printing unit of the vending device for printing.