CN111553667A

CN111553667A - Transaction method, gateway device, payment platform, merchant device and transaction system

Info

Publication number: CN111553667A
Application number: CN202010253181.4A
Authority: CN
Inventors: 翟孟冬; 祖立军; 戚跃民; 李军
Original assignee: China Unionpay Co Ltd
Current assignee: China Unionpay Co Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-08-18
Also published as: WO2021196966A1

Abstract

The disclosure provides a transaction method, gateway equipment, a payment platform, merchant equipment and a transaction system. The transaction method comprises the following steps: acquiring identification information and transaction information of first equipment from merchant equipment; generating an order according to the identification information and the transaction information, wherein the order comprises the identification information; and sending the order to a payment platform so that the payment platform can analyze the identification information of the first equipment from the order and operate an account under the condition that the identification of the first equipment is associated with the account on the payment platform. By applying the transaction method, safe, convenient and noninductive payment and confirmation of a transaction scene can be realized.

Description

Transaction method, gateway device, payment platform, merchant device and transaction system

Technical Field

The present disclosure belongs to the field of communications, and in particular, to a transaction method, a gateway device, a payment platform, a merchant device, and a transaction system.

Background

In an automobile charging scene, the mainstream payment modes are card payment and two-dimensional code payment. However, these methods have many inconveniences for users. The charging card transacted by the user can only be used in a specific station, and has great limitation. Use the two-dimensional code then need take out the cell-phone when charging and sweep the sign indicating number, still can meet because of the poor, the two-dimensional code of network signal is unclear leads to the problem that can't start the charging. In addition, the order for two-dimensional code payment is generated in the network, the specific transaction scene is difficult to determine, and the risk of being applied to a payment channel exists.

Disclosure of Invention

The present disclosure provides a transaction method, a gateway device, a payment platform, a merchant device and a transaction system to at least partially solve the technical problems in the prior art.

The embodiment of the disclosure provides a transaction method, which is applied to gateway equipment, and the transaction method comprises the following steps: acquiring identification information and transaction information of first equipment from merchant equipment; generating an order according to the identification information and the transaction information, wherein the order comprises the identification information; and sending the order to a payment platform so that the payment platform can analyze the identification information of the first equipment from the order and operate an account under the condition that the identification of the first equipment is associated with the account on the payment platform.

In some optional embodiments, receiving the identification information and the transaction information of the first device from the merchant device comprises: performing key negotiation with the first device through forwarding of the merchant device; receiving a ciphertext of the identification information of the first device from the merchant device, the ciphertext of the identification information of the first device being encrypted by the first device; parsing the ciphertext into plaintext; receiving the transaction information from the merchant device.

In some optional embodiments, performing key negotiation with the first device through forwarding by the merchant device includes: receiving a secret key identifier from the merchant equipment, wherein the secret key identifier is the secret key identifier which is sent to the first equipment by the security platform and is sent to the merchant equipment by the first equipment; sending the key identification to the secure platform; and acquiring a first secret key corresponding to the secret key identifier from the security platform, wherein the first secret key is the secret key sent to the first equipment by the security platform.

In some optional embodiments, obtaining the identification information and the transaction information of the first device from the merchant device comprises: and analyzing the identification information of the first equipment from a battery management system message sent to the gateway equipment by the merchant equipment.

In some optional embodiments, further comprising: sending the identification information of the first device to an operation platform to check the availability of the identification information of the first device; and under the condition that the identification information of the first equipment is available, informing the merchant equipment of providing service for the first equipment.

In some optional embodiments, the merchant device can be reserved and occupied, and the first device capable of reserving in the reservation period is allowed to be occupied by other first devices if the merchant device is not occupied, and the merchant device can be released from being occupied by other first devices according to reservation credentials provided by a reservation user if the merchant device is occupied by other first devices in the reservation period; the transaction method further comprises: obtaining reservation information from an operation platform, wherein the reservation information comprises: identification information and a reserved time period of a first device for reservation; acquiring identification information of first equipment of the reservation user from the merchant equipment in the reservation time period; comparing the identification information of the first equipment of the reservation user acquired from the operation platform with the identification information of the first equipment of the reservation user acquired from the merchant equipment; and if the comparison is successful, informing the merchant equipment to provide service for the first equipment of the reservation user.

In some possible implementations, generating the order from the identification information and the trade information is performed in a trusted execution environment.

In some optional embodiments, the first device comprises an electric vehicle and the merchant device comprises a charging post.

In some optional embodiments, the identification information of the first device comprises: any one of vehicle identification code VIN, license plate number and radio frequency identification.

The embodiment of the disclosure provides a transaction method applied to a payment platform, and the transaction method comprises the following steps: establishing association between identification information of the first device and an account; receiving an order from a gateway device, the order including an identification of a first device; operating an account if the identification information of the first device is associated with the account on the payment platform.

The embodiment of the disclosure provides a transaction method, which is applied to merchant equipment, wherein the merchant equipment is in communication connection with a gateway equipment, and the transaction method comprises the following steps: establishing a communication connection with a first device; determining identification information and corresponding transaction information of the first device; and sending the identification information of the first equipment and the corresponding transaction information to the gateway equipment.

In some optional embodiments, before sending the identification information of the first device and the corresponding transaction information to the gateway device, the method further includes: receiving a key identifier from the first device, wherein the key identifier is the key identifier sent to the first device by the security platform; and sending the key identifier to the gateway equipment so that the gateway equipment can obtain a corresponding first key according to the key identifier, wherein the first key is a key sent to the first equipment by a security platform.

In some optional embodiments, further comprising: receiving a reservation credential provided by a reservation user during a reservation period; sending the reservation certificate to an operation platform through the gateway equipment for verification; under the condition that the reservation certificate is verified, sending the identification information of the first equipment of the reservation user to the gateway equipment so that the gateway equipment can compare the identification information of the first equipment of the reservation user received from the merchant equipment with the identification information of the first equipment of the reservation user received from an operation platform; and after receiving the information which is sent by the gateway equipment and is successfully compared, providing service for the first equipment.

An embodiment of the present disclosure provides a transaction method, including: receiving, at the gateway device, identification information and transaction information of the first device from the merchant device; generating an order according to the identification information and the transaction information at the gateway equipment, wherein the order comprises the identification information; at the gateway device, sending the order to a payment platform; establishing association between identification information of the first device and an account at the payment platform; receiving, at the payment platform, an order from the gateway device; and operating a corresponding account on the payment platform under the condition that the identification information of the first equipment in the order is associated with the account on the payment platform.

Embodiments of the present disclosure provide a gateway device, including a memory and a processor, where the memory stores instructions that are executed by the processor to perform the above transaction method based on the gateway device.

The embodiment of the disclosure provides a gateway device, which includes an obtaining module, configured to obtain identification information and transaction information of a first device from a merchant device; the order generation module generates an order according to the identification information and the transaction information, wherein the order comprises the identification information; and the sending module is used for sending the order to a payment platform so that the payment platform can analyze the identification information of the first equipment from the order and operate an account under the condition that the identification of the first equipment is associated with the account on the payment platform.

In some optional embodiments, the determining module comprises: the acquisition module includes: a communication unit configured to receive the transaction information from the merchant device and receive a ciphertext of identification information of the first device from the merchant device, the ciphertext of the identification information of the first device being encrypted by the first device; and the key unit is used for carrying out key negotiation with the first equipment and analyzing the ciphertext into plaintext.

In some optional embodiments, the key unit is specifically configured to: receiving a secret key identifier from the merchant equipment, wherein the secret key identifier is the secret key identifier which is sent to the first equipment by the security platform and is sent to the merchant equipment by the first equipment; sending the key identification to the secure platform; and acquiring a first secret key corresponding to the secret key identifier from the security platform, wherein the first secret key is the secret key sent to the first equipment by the security platform.

In some optional embodiments, the obtaining module is specifically configured to: and analyzing the identification information of the first equipment from a battery management system message sent to the gateway equipment by the merchant equipment.

In some optional embodiments, the obtaining module is specifically a power line carrier communication module.

In some optional embodiments, the system further includes a verification module, configured to send the identification information of the first device to an operation platform, so as to verify availability of the identification information of the first device; and under the condition that the identification information of the first equipment is available, informing the merchant equipment of providing service for the first equipment.

In some optional embodiments, the merchant device can be reserved and occupied, and the first device capable of reserving in the reservation period is allowed to be occupied by other first devices if the merchant device is not occupied, and the merchant device can be released from being occupied by other first devices according to reservation credentials provided by a reservation user if the merchant device is occupied by other first devices in the reservation period; the gateway device further includes a reservation module configured to obtain reservation information from an operation platform, where the reservation signal includes: identification information and a reserved time period of a first device for reservation; acquiring identification information of first equipment of the reservation user from the merchant equipment in the reservation time period; comparing the identification information of the first equipment of the reservation user acquired from the operation platform with the identification information of the first equipment of the reservation user acquired from the merchant equipment; and if the comparison is successful, informing the merchant equipment to provide service for the first equipment of the reservation user.

In some optional embodiments, the identification of the first device comprises: any one of vehicle identification code VIN, license plate number and radio frequency identification.

In some optional embodiments, the gateway device is an edge computing gateway or a fog computing gateway.

Embodiments of the present disclosure provide a payment platform including a memory and a processor, the memory storing instructions that are executed by the processor to perform the above-described transaction method based on the payment platform.

An embodiment of the present disclosure provides a payment platform, including: the association module is used for establishing association between the identification information of the first device and the account; a receiving module, configured to receive an order from a gateway device, where the order includes an identifier of a first device; the operation module is used for operating an account under the condition that the identification information of the first device is associated with the account on the payment platform.

Embodiments of the present disclosure provide a merchant device comprising a memory and a processor, the memory storing instructions that are executed by the processor to perform a method of merchant device based transactions according to the above.

An embodiment of the present disclosure provides merchant equipment, including: the communication module is used for establishing communication connection with the first equipment and the gateway equipment; the determining module is used for determining the identification information of the first equipment and the corresponding transaction information; the communication module is further configured to send the identification information of the first device and the corresponding transaction information to the gateway device.

In some optional embodiments, the secure module is further configured to receive a key identifier from the first device, where the key identifier is a key identifier sent by the secure platform to the first device; and sending the key identifier to the gateway equipment so that the gateway equipment can obtain a corresponding first key according to the key identifier, wherein the first key is a key sent to the first equipment by a security platform.

In some optional embodiments, the system further comprises a reservation module for receiving a reservation credential provided by a reservation user during a reservation period; sending the reservation certificate to an operation platform through the gateway equipment for verification; under the condition that the reservation certificate is verified, sending the identification information of the first equipment of the reservation user to the gateway equipment so that the gateway equipment can compare the identification information of the first equipment of the reservation user received from the merchant equipment with the identification information of the first equipment of the reservation user received from an operation platform; and after receiving the information which is sent by the gateway equipment and is successfully compared, providing service for the first equipment.

In some optional embodiments, the communication module comprises a power line carrier communication module, which is specifically configured to establish a communication connection with the gateway device.

An embodiment of the present disclosure provides a transaction system, which includes the above gateway device, and includes the above payment platform, and includes the above merchant device.

Based on the embodiment of the disclosure, after the user connects the first device with the merchant device, the communication process automatically completed among the first device, the merchant device, the gateway device and the payment platform can be realized, the safe and convenient transaction process is realized, the payment of the transaction does not need manual operation of the user, the user does not need to transact membership cards or rechargeable cards with a plurality of merchant device providers, the payment platform can determine the transaction scene, and the risk that the payment channel is applied mechanically is eliminated.

Drawings

Fig. 1 is a flowchart of a transaction method applied to a gateway device according to an embodiment of the present disclosure.

Fig. 2 is a flowchart of a transaction method applied to a payment platform according to an embodiment of the present disclosure.

Fig. 3 is a flowchart of a transaction method applied to a merchant device according to an embodiment of the disclosure.

Fig. 4 is a flow chart of a transaction method of an embodiment of the present disclosure.

Fig. 5 is a flow diagram of a portion of a transaction flow of an embodiment of the present disclosure.

Fig. 6 is a schematic view of a scenario of a transaction method according to an embodiment of the disclosure.

Fig. 7 is a schematic structural diagram of a gateway device according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of a gateway device according to another embodiment of the present disclosure.

Fig. 9 is a schematic structural diagram of a payment platform according to an embodiment of the present disclosure.

Fig. 10 is a schematic structural diagram of a payment platform according to another embodiment of the present disclosure.

Fig. 11 is a schematic structural diagram of a merchant device according to an embodiment of the disclosure.

Fig. 12 is a schematic structural diagram of a merchant device according to another embodiment of the disclosure.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the present disclosure, it is to be understood that terms such as "including" or "having," or the like, are intended to indicate the presence of the disclosed features, numbers, steps, acts, components, parts, or combinations thereof, and are not intended to preclude the possibility of the presence of one or more other features, numbers, steps, acts, components, parts, or combinations thereof.

It should be further noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Fig. 1 provides a transaction method applied to a gateway device. Fig. 2 provides a transaction method applied to a payment platform. Fig. 3 provides a transaction method applied to a merchant device. Fig. 4 is a complete transaction flow diagram of the payment platform, the merchant device and other peripheral platforms and devices based on the gateway device.

In the present disclosure, the first device refers to a device that interacts with a merchant device and generates a payment demand. The first device is, for example, an electric vehicle requiring a charging service, a mobile phone requiring a charging service, or the like. After the charging is completed, the holder of the first device needs to pay for this. Of course, in embodiments of the present disclosure, such payment is done automatically. Of course, the payer may also be the holder of the merchant device. The merchant device refers to a device that provides a valuable service to the first device or accepts a valuable service provided by the first device. The merchant equipment is in communication connection with the gateway equipment. The merchant device is, for example, a charging pile or the like that provides a charging service for an electric vehicle or a mobile phone. The gateway device has a certain computing power in addition to a basic routing function. The gateway device is for example an edge computing gateway or a fog computing gateway. A secure platform refers to a platform that provides secure services, for example a server for distribution of keys. The operation platform refers to a management background for managing each merchant device. The operation platform is, for example, a charging pile background management platform.

The following respectively introduces the transaction process from the perspective of the gateway device, the payment platform, and the merchant device, and introduces the transaction method provided by the present disclosure from the system formed by the gateway device, the payment platform, and the merchant device in combination with a specific transaction scenario.

Referring to fig. 1, a transaction method applied to a gateway device includes the following steps. The execution subject of the transaction method is the gateway device from the device perspective, and the execution subject of the transaction method is the program loaded on the gateway device from the program perspective.

S101, acquiring identification information and transaction information of the first device from the merchant device.

S102, generating an order according to the identification information and the transaction information, wherein the order comprises the identification information.

S103, sending the order to a payment platform, so that the payment platform can analyze the identification information of the first equipment from the order and operate an account under the condition that the identification of the first equipment is associated with the account on the payment platform.

The gateway device has the function of a POS machine (point of sale information management system) in the scene of the Internet of things. The gateway device is in communication connection with the merchant device and the payment platform respectively. If the first device consumes or provides valuable services for the merchant device, the first device will necessarily establish a communication connection with the merchant device. In the scene of the internet of things, the merchant device provides valuable services for the first device or receives the valuable services provided by the first device, and the merchant device can also determine the identification information of the first device. The gateway device is thus able to determine the identification information of the first device and the transaction information (including, for example, the amount of money consumed by the holder of the first device) during communication between the gateway device and the merchant device.

Step S102 is preferably performed in a trusted execution environment. Thus, safety can be improved. The order usually contains, in addition to the identification information of the first device, other information, such as an account or a merchant number of an administrator (operation platform) of the merchant device, an amount of the transaction, whether the merchant device is a payer or a payee, and the like. The merchant number of the manager of the merchant device may be recorded in the gateway device when the gateway device is connected to the merchant device. The amount of the transaction may be sent to the gateway device by the merchant device, or the amount of the transaction may be sent to the gateway device by the merchant device, and the gateway device calculates the specific transaction amount. Here, the identification information of the first device replaces the account of the holder of the first device in typically one order.

Take the scenario that the electric vehicle is charged in the charging pile as an example. The Battery Management System (BMS) in the electric Vehicle stores battery information (such as voltage, current, temperature), and also stores Vehicle information (such as VIN Number, i.e., Vehicle Identification Number, also called Vehicle Identification Number), and after the charging gun is inserted into the Vehicle, the charging pile CAN read the information (battery management system message) in the BMS through a controller area network bus (CAN bus) of the Vehicle. By deploying the edge computing gateway at the charging station, it is connected to the charging pile using a network cable. And the charging pile further sends the battery management system message to an edge computing gateway. The edge computing gateway can parse the battery management system message and strip the VIN number of the electric vehicle from the message. Therefore, the identity of the electric automobile is recognized. The operation logic of charging pile itself is relatively simple, and the change on one side of charging pile is small.

Of course, the charging pile may directly send the identification information of the electric vehicle to the edge computing gateway in an encrypted or unencrypted manner.

In addition, the edge computing gateway may receive the power consumption status submitted by the charging pile and calculate the fee to be paid (of course, the charging pile may also submit the consumption amount to the edge computing gateway after calculating the consumption amount by itself). And the edge computing gateway encapsulates the VIN number, the charging settlement information and the merchant information (or pre-stored information) provided by the charging pile management service platform into a order and sends the order to the payment platform to complete the payment. Besides the vehicle identification code VIN, the merchant device may also read identification information of other electric vehicles, such as license plate numbers and radio frequency identification identifiers of the electric vehicles.

The gateway equipment completes collection of order related information and generates an order, and then payment transaction is completed on the payment platform. The account of the first device holder in the order is replaced with identification information of the first device. This makes the consumption process of the user more convenient and faster, and realizes the non-inductive payment. The gateway device can determine the identity of the first device through a technical means and also can determine the identity of the merchant device, which is beneficial for a payment platform to accurately determine a transaction scene.

In some possible embodiments, the process of the gateway device determining the identity and the spending amount of said first device comprises the following steps.

S1011, performing key negotiation with the first device through forwarding of the merchant device.

S1012, receiving a ciphertext of the identification information of the first device from the merchant device, where the ciphertext of the identification information of the first device is encrypted by the first device;

and S1013, analyzing the ciphertext into a plaintext.

S1014, receiving the transaction information from the merchant equipment.

Thus, as the key information in the order, the first device sends the identification information to the merchant device in an encrypted manner, and then the merchant device sends the identification information to the gateway device. The gateway device collects identification information of the first device in a more secure manner.

In order to improve the information security of the gateway device when determining the identifier of the first device, the gateway device and the first device perform ciphertext communication. For this reason, key negotiation is required between the gateway device and the first device.

One possible implementation of the key negotiation between the gateway device and the first device is as follows. A service is required for providing key distribution by the security platform for the first device and the gateway device. A first key and a key identifier sent by the security platform to the first device need to be set. The first key is for encrypted communication between the first device and the gateway device. The key identifier and the first secret key are in one-to-one correspondence. The process includes the following steps.

S10111, receiving a key identifier from the merchant device, where the key identifier is the key identifier sent by the security platform to the first device and sent by the first device to the merchant device.

S10112, sending the secret key identification to the security platform.

S10113, obtaining a first key corresponding to the key identifier from the secure platform, where the first key is a key sent by the secure platform to the first device.

In this way, the gateway device obtains the first key through the key identifier, and peer-to-peer encrypted communication with the first device can be achieved. Since there are numerous gateway devices that may be encountered by the same first device, there are also numerous first devices that may be encountered by the same gateway device. The key distribution mode of peer-to-peer encryption is more efficient.

Of course, after the identification information of the first device is determined, the first device is not necessarily eligible for consumption on this merchant device (e.g., the user of the first device is not a registered member).

To this end, in some possible embodiments, the transaction method further comprises the following steps.

Firstly, sending the identification information of the first equipment to an operation platform so as to verify the availability of the identification information of the first equipment; then, in a case where the identification information of the first device is available, the merchant device is notified to provide a service for the first device.

If the identification information of the first device is not available, a message may be sent to the merchant device, so that the merchant device rejects the consumption request or displays information on the merchant device to prompt the consumer how to operate.

The embodiment of the disclosure also provides a transaction method applied to a payment platform, which comprises the following steps.

S201, establishing association between the identification information of the first device and the account.

S202, receiving an order from the gateway equipment, wherein the order comprises identification information of the first equipment.

S203, under the condition that the identification information of the first device is associated with an account on the payment platform, operating the account.

The user needs to complete the association between the own first device and the own account in the payment platform in advance. After the payment platform receives the order, the corresponding account can be determined according to the identification information of the first device. Thus, the non-sensitive payment based on the transaction of the Internet of things is completed. The payment platform can determine which gateway device the scene of the payment is initiated at, so that the scene of the transaction can be determined.

Referring to fig. 3, an embodiment of the present disclosure provides a transaction method applied to a merchant device. The transaction method includes the following steps.

S301, communication connection is established with the first equipment.

S304, determining the identification information of the first device and the corresponding transaction information.

S305, sending the identification information of the first device and the corresponding transaction information to the gateway device.

The merchant equipment can realize the non-inductive payment and is beneficial to a payment platform to determine a transaction scene through the communication between the merchant equipment and the first equipment and the gateway equipment based on the Internet of things.

In some optional embodiments, before the identification information of the first device is a ciphertext and the identification information of the first device and the corresponding transaction information are sent to the gateway device, the method further includes the following steps.

S302, receive a key identifier from the first device, where the key identifier is a key identifier sent to the first device by the security platform.

S303, sending the key identifier to the gateway device, so that the gateway device obtains a corresponding first key according to the key identifier, where the first key is a key sent to the first device by the security platform.

That is, the merchant device forwards the key identifier to the gateway device, so that the gateway device can obtain the first key accordingly. So that the gateway device and the first device perform symmetric encrypted communication based on the first secret key.

Based on the above, the present disclosure also provides a transaction method, referring to fig. 4, which includes the following steps.

S401, at the gateway device, the identification information and the transaction information of the first device are received from the customer device.

S402, generating an order according to the identification information and the transaction information at the gateway equipment, wherein the order comprises the identification information.

And S403, sending the order to a payment platform at the gateway equipment.

S404, establishing the association between the identification information of the first device and the account on the payment platform.

S405, receiving the order from the gateway equipment at the payment platform.

S406, in the payment platform, under the condition that the identification information of the first device in the order is associated with an account on the payment platform, operating the corresponding account.

Referring to fig. 5, a complete transaction process is described with a scenario in which the electric vehicle is charged in the charging pile as an example. After the charging gun is inserted into a charging port of the electric automobile, the electric automobile and the edge computing gateway establish communication through the charging pile, and key negotiation is carried out. And after the negotiation is finished, the vehicle VIN number is encrypted by using the secret key, the charging pile reads vehicle information through a CAN bus of the automobile and sends the information to an edge computing gateway connected with the charging pile. After receiving the information, the edge computing gateway analyzes the message through the charging pile driving program, decrypts the VIN number by using the first secret key, and then delivers the VIN number to the Internet of things payment platform to check the vehicle availability. If the electric automobile is bound with an account such as a bank card on the payment platform, the edge computing gateway controls the charging pile to charge the vehicle. When charging is finished and the charging gun is pulled out from the charging port of the automobile, the charging pile sends vehicle information and charging settlement information to the edge computing gateway, after the VIN is identified by the edge computing gateway, the VIN and the settlement information are packaged into an order by the payment control, and the order is encrypted by the Internet of things safety chip and submitted to the Internet of things payment platform to complete payment.

Particularly, taking the charging pile and the electric vehicle as an example, the interface between the charging pile and the electric vehicle and the communication protocol are standardized. Need not to reform transform current electric automobile and charging pile, charging station operator's construction cost greatly reduced. The vehicle owner only needs to insert the charging gun and pull the charging gun out, and the whole process of charging and payment is completed.

The inventor of the present disclosure finds that, in a scene such as charging pile reservation charging, the prior art center has a problem of low utilization rate of the charging pile. For example, a user reserves a certain charging pile to be occupied at 12:00-13:00, and other users cannot use the charging pile no matter whether the user actually charges the charging pile in the time period of 12:00-13: 00. To solve this problem, the inventors of the present disclosure further propose the following solution.

The merchant device can be reserved and occupied, the merchant device can be allowed to be occupied by other first devices under the condition that the merchant device is not occupied by the first device which can be reserved in the reservation time period, and the merchant device can be released from being occupied by the other first devices according to reservation certificates provided by reservation users under the condition that the merchant device is occupied by the other first devices in the reservation time period.

The reservation user here is the user who has carried out the reservation to occupy to charging pile.

For the gateway device, the transaction method further comprises the following steps.

S104, acquiring reservation information from an operation platform, wherein the reservation information comprises: identification information of a first device making a reservation and a reservation period. The gateway device may obtain the subscription information from the operation platform, or of course, may obtain the subscription information from the customer equipment. In order to ensure the safety and accuracy of the information, the reservation information is preferably acquired from the operation platform.

And S105, acquiring the identification information of the first equipment of the reservation user from the merchant equipment in the reservation time period.

S106, comparing the identification information of the first equipment of the reservation user acquired from the operation platform with the identification information of the first equipment of the reservation user acquired from the merchant equipment, and if the comparison is successful, informing the merchant equipment of providing service for the first equipment of the reservation user.

In this way, the gateway device completes the monopolization of the reservation user to the merchant device in the reservation time period. Of course, if the merchant device has been previously occupied by other first devices, the merchant device may terminate service to the other first devices accordingly.

In conjunction with this, the transaction method of the merchant device further includes the following steps.

S306, in the reservation time period, the reservation voucher provided by the reservation user is received.

S307, the reservation voucher is sent to an operation platform through the gateway equipment for verification.

And S308, under the condition that the reservation certificate is verified, sending the identification information of the first equipment of the reservation user to the gateway equipment so that the gateway equipment can compare the identification information of the first equipment of the reservation user received from the merchant equipment with the identification information of the first equipment of the reservation user received from an operation platform.

S309, after receiving the information which is sent by the gateway device and is successfully compared, providing service for the first device.

Taking the charging pile as an example of reserved occupation, the reservation process can be as follows.

After the charging pile is reserved, the charging service can be provided for the non-reserved vehicle, but the charging pile can inform the non-reserved vehicle of the following conditions before the non-reserved vehicle is charged: after the charging reservation time is reached, the charging pile of the vehicle may be preempted by the reserved vehicle. The preemption means that the reservation user can terminate the charging of the non-reserved vehicle within the reserved charging time and insert the charging gun into the reserved vehicle for charging.

The user selects a charging pile to perform charging reservation on a charging pile operation platform, and then a charging operator sends 4 bits behind the mobile phone number of the user (as a reservation certificate), the vehicle VIN number and the reservation time to reservation service on the edge computing gateway. The charging station is reached in the reservation time to charge, if the vehicle uses the charging pile to charge at the moment, the reservation user can input 4 digits behind the personal mobile phone number on the screen of the charging pile to finish the current charging, and then the charging gun is inserted into the vehicle. After inserting the gun, the edge computing gateway compares the VIN number of the reserved service with the VIN number of the current vehicle, if the VIN number of the reserved service is consistent with the VIN number of the current vehicle, the charging pile is locked until the charging is finished or the reserved time is finished, and if the VIN number of the reserved service is inconsistent with the VIN number of the current vehicle, the charging pile is.

Referring to fig. 6, in a particular trading scenario, some trading processes may proceed as follows.

The information of each participant in the trading scenario is as follows.

All users need to bind the bank card and the vehicle VIN number on the payment platform. The merchant number of the charging pile operation platform is S1.

After a charging gun of the charging pile A is inserted into the vehicle A, the vehicle A requests the safety platform for a secret key identification. The safety platform generates a first secret key K and a secret key identifier token, and sends the first secret key K and the secret key identifier token to the electric automobile after local recording. After receiving the key identification token, the electric automobile sends the key identification token to the edge computing gateway through the charging pile, and the edge computing gateway sends the key identification token to the safety platform. And the security platform finds the corresponding first secret key K according to the secret key identifier token and sends the first secret key K to the edge computing gateway. The edge computing gateway obtains a key identifier token. The vehicle a then encrypts the VIN number using the first secret key K. The charging pile A reads the encrypted information of the VIN number of the vehicle, the temperature of the battery, the electric quantity of the battery and the like from the CAN bus of the automobile A and sends the information to the edge computing gateway. The edge computing gateway uses the first key K to decrypt and identify from the information that the VIN number of the charging vehicle is E1111, and sends it to the payment platform (usually also in an encrypted manner). And the payment platform decrypts the message after receiving the message, inquires whether the vehicle with the VIN number E1111 is bound with the bank card or not, and informs the edge computing gateway of charging through the network if the result is bound. And after receiving the charging instruction, the edge computing gateway controls the charging pile A to start charging.

After the vehicle A is charged, the charging pile A reads information such as a vehicle VIN number, battery temperature and battery electric quantity from a CAN bus of the vehicle A and sends the information and the electric quantity consumed at the time of 20 kilowatt hours to the edge computing gateway. The edge computing gateway calculates the payment amount of the current time to be 20 yuan according to the power consumption of 20 kilowatt hours, identifies the VIN number of the charging vehicle to be E1111, and then encapsulates the VIN number and the merchant number S1 of the charging pile operator together to form an order to be sent to the Internet of things payment platform. After receiving the order, the payment platform finds the bank card C621 corresponding to the VIN number E1111, and then realizes that the bank card C621 deducts 20 yuan to the merchant S1 through the payment channel. After the deduction is finished, the Internet of things payment platform synchronizes the deduction condition to the charging pile operation platform.

And the user C makes a reservation on the charging pile operation platform, the reservation content is 8-10 points, and the vehicle C makes a reservation on the charging pile B for charging. And after the reservation is successful, the charging pile operation platform sends the reserved time, the VIN number E3333 of the vehicle C and the mobile phone number P3333 of the user D to a reserved service on the edge computing gateway. Vehicle B uses to fill electric pile B and charges when 7 o ' clock, fills electric pile B and tells this stake of user B through filling the electric pile screen this moment and has reserved the charging when 8 o ' clock, and vehicle B's charging can receive the influence. For some reason, vehicle C arrives at the charging station half way at 8 o' clock, at which time vehicle B is charging using charging post B. And the user C inputs the post-mobile phone number four digits 3333 on the screen of the charging pile, the charging pile sends the post-mobile phone number four digits 3333 to the edge computing gateway for verification, the reservation service program module on the edge computing gateway compares the post-mobile phone number four digits after receiving the request, the result is consistent, and then the charging pile B is controlled to finish charging. After the charging is finished, the user C pulls the charging gun off the vehicle B, and then inserts the vehicle C. And then the edge computing gateway identifies that the VIN number of the vehicle is E3333, the VIN number of the reserved vehicle stored by the reserved service of the edge computing gateway is also E3333, and the VIN number are consistent, and the edge computing gateway controls the charging pile B to start charging the vehicle C.

Referring to fig. 7, an embodiment of the present disclosure further provides a gateway device, including a memory 11 and a processor 12, where the memory 11 stores instructions, and the instructions are executed by the processor 12 to implement the aforementioned gateway device-based transaction method.

Referring to fig. 8, an embodiment of the present disclosure also provides a gateway device, including: an obtaining module 13, configured to obtain, from a merchant device, identification information and transaction information of a first device; the order generation module 14 generates an order according to the identification information and the transaction information, wherein the order comprises the identification information; a sending module 15, configured to send the order to a payment platform, so that the payment platform parses the identifier information of the first device from the order, and operates an account when the identifier of the first device is associated with the account on the payment platform.

In some optional embodiments, the obtaining module 13 includes: a communication unit 131, configured to receive the transaction information from the merchant device, and receive a ciphertext of identification information of the first device from the merchant device, where the ciphertext of the identification information of the first device is encrypted by the first device; a key unit 132, configured to perform key negotiation with the first device, and parse the ciphertext into a plaintext.

Optionally, the key unit 132 is specifically configured to: receiving a secret key identifier from the merchant equipment, wherein the secret key identifier is the secret key identifier which is sent to the first equipment by the security platform and is sent to the merchant equipment by the first equipment; sending the key identification to the secure platform; and acquiring a first secret key corresponding to the secret key identifier from the security platform, wherein the first secret key is the secret key sent to the first equipment by the security platform.

In some optional embodiments, the obtaining module 13 is specifically configured to: and analyzing the identification information of the first equipment from a battery management system message sent to the gateway equipment by the merchant equipment.

Power line carrier communication (PLC) is a communication method for transmitting data and media signals using a power line. The power line carrier communication module is adopted to realize the communication between the gateway equipment and the merchant equipment, and has two beneficial effects: on one hand, the gateway equipment can communicate with merchant equipment (such as a charging pile) through a power line, so that the geographic limitation is broken through, and extra network cable laying is not required between the merchant equipment and the gateway equipment, so that the construction cost of a charging operator is greatly reduced; on the other hand, the gateway device can be directly connected with the management system of the power grid, and when the gateway device is interacted with the management system of the power grid, the load information of the charging pile connected with the gateway device can be fed back to the management system of the power grid, so that the management system of the power grid can conveniently carry out load balancing, and the power utilization stability of the charging station is guaranteed.

In this way, the power line provides electric energy for the merchant device (for example, a charging pile), and on the other hand, communication between the gateway device and the merchant device and communication between the gateway device and a management platform of the power grid are achieved.

In some optional embodiments, the system further includes a verification module 16, configured to send the identification information of the first device to an operation platform to verify availability of the identification information of the first device; and under the condition that the identification information of the first equipment is available, informing the merchant equipment of providing service for the first equipment.

In some optional embodiments, the merchant device can be reserved and occupied, and the first device capable of reserving in the reservation period is allowed to be occupied by other first devices if the merchant device is not occupied, and the merchant device can be released from being occupied by other first devices according to reservation credentials provided by a reservation user if the merchant device is occupied by other first devices in the reservation period; the gateway device further comprises a reservation module 17 configured to obtain reservation information from the operation platform, where the reservation information includes: identification information and a reserved time period of a first device for reservation; acquiring identification information of first equipment of the reservation user from the merchant equipment in the reservation time period; comparing the identification information of the first equipment of the reservation user acquired from the operation platform with the identification information of the first equipment of the reservation user acquired from the merchant equipment; and if the comparison is successful, informing the merchant equipment to provide service for the first equipment of the reservation user.

Optionally, the identification of the first device comprises: any one of vehicle identification code VIN, license plate number and radio frequency identification.

Referring to fig. 9, embodiments of the present disclosure also provide a payment platform including a memory 21 and a processor 22, where the memory 21 stores instructions executed by the processor 22 to perform the aforementioned payment platform-based transaction method.

Referring to fig. 10, embodiments of the present disclosure also provide a payment platform, including: an association module 23, configured to establish an association between the identification information of the first device and the account; a receiving module 24, configured to receive an order from the gateway device, where the order includes an identifier of the first device; an operation module 25, configured to operate an account if the identification information of the first device is associated with the account on the payment platform.

Referring to fig. 11, an embodiment of the present disclosure provides a merchant device comprising a memory 31 and a processor 32, the memory 31 storing instructions that are executed by the processor 32 to perform a transaction method according to any one of claims 9-11.

Referring to fig. 12, an embodiment of the present disclosure provides a merchant device including: a communication module 33, configured to establish a communication connection with the first device and the gateway device; a determining module 34, configured to determine identification information of the first device and corresponding transaction information; the communication module 33 is further configured to send the identification information of the first device and the corresponding transaction information to the gateway device.

In some optional embodiments, the security module 35 is further configured to receive a key identifier from the first device, where the key identifier is a key identifier sent by the security platform to the first device; and sending the key identifier to the gateway equipment so that the gateway equipment can obtain a corresponding first key according to the key identifier, wherein the first key is a key sent to the first equipment by a security platform.

In some optional embodiments, a reservation module 36 is further included for receiving a reservation credential provided by the reservation user during the reservation period; sending the reservation certificate to an operation platform through the gateway equipment for verification; under the condition that the reservation certificate is verified, sending the identification information of the first equipment of the reservation user to the gateway equipment so that the gateway equipment can compare the identification information of the first equipment of the reservation user received from the merchant equipment with the identification information of the first equipment of the reservation user received from an operation platform; and after receiving the information which is sent by the gateway equipment and is successfully compared, providing service for the first equipment.

Optionally, the communication module 33 includes a power line carrier communication module, and the power line carrier communication module is specifically configured to establish a communication connection with the gateway device.

Optionally, the first device includes an electric vehicle, and the merchant device includes a charging pile.

Embodiments of the present disclosure also provide a transaction system, including the above gateway device, and including the above payment platform, and including the above merchant device.

The embodiments in the disclosure are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the device class embodiment, since it is substantially similar to the method embodiment, the description thereof is simplified, and the relevant points can be referred to only part of the description of the method embodiment.

The devices and the methods provided by the embodiments of the present disclosure are in one-to-one correspondence, and therefore, each device also has beneficial technical effects similar to those of the corresponding method, and since the beneficial technical effects of the method have been described in detail above, the beneficial technical effects of the apparatus, the device, and the computer-readable storage medium are not described herein again.

As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure 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 so forth) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. 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.

In a typical configuration, a device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. Further, while the operations of the disclosed methods are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.

It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.

Claims

1. A transaction method applied to a gateway device, the transaction method comprising:

acquiring identification information and transaction information of first equipment from merchant equipment;

generating an order according to the identification information and the transaction information, wherein the order comprises the identification information;

and sending the order to a payment platform so that the payment platform can analyze the identification information of the first equipment from the order and operate an account under the condition that the identification of the first equipment is associated with the account on the payment platform.

2. The transaction method of claim 1, wherein receiving identification information of the first device and the transaction information from the merchant device comprises:

performing key negotiation with the first device through forwarding of the merchant device;

receiving a ciphertext of the identification information of the first device from the merchant device, the ciphertext of the identification information of the first device being encrypted by the first device;

parsing the ciphertext into plaintext;

receiving the transaction information from the merchant device.

3. The transaction method of claim 2, wherein performing a key agreement with the first device via forwarding by the merchant device comprises:

receiving a secret key identifier from the merchant equipment, wherein the secret key identifier is the secret key identifier which is sent to the first equipment by the security platform and is sent to the merchant equipment by the first equipment;

sending the key identification to the secure platform;

and acquiring a first secret key corresponding to the secret key identifier from the security platform, wherein the first secret key is the secret key sent to the first equipment by the security platform.

4. The transaction method of claim 1, wherein obtaining the identification information and the transaction information of the first device from the merchant device comprises:

and analyzing the identification information of the first equipment from a battery management system message sent to the gateway equipment by the merchant equipment.

5. The transaction method according to claim 1, further comprising:

sending the identification information of the first device to an operation platform to check the availability of the identification information of the first device;

and under the condition that the identification information of the first equipment is available, informing the merchant equipment of providing service for the first equipment.

6. The transaction method according to claim 1, wherein the merchant device can be reserved and can be reserved, and if the merchant device is not reserved in a reservation period, the first device capable of reserving in the reservation period is allowed to be reserved by other first devices, and if the merchant device is reserved in the reservation period, the other first devices can release the reservation of the merchant device according to reservation credentials provided by a reservation user; the transaction method further comprises:

obtaining reservation information from an operation platform, wherein the reservation information comprises: identification information and a reserved time period of a first device for reservation;

acquiring identification information of first equipment of the reservation user from the merchant equipment in the reservation time period;

comparing the identification information of the first equipment of the reservation user acquired from the operation platform with the identification information of the first equipment of the reservation user acquired from the merchant equipment, and if the comparison is successful, notifying the merchant equipment to provide service for the first equipment of the reservation user.

7. The trading method of claim 1, wherein generating an order from the identification information and the trading information is performed in a trusted execution environment.

8. The transaction method of claim 1, wherein the first device comprises an electric vehicle and the merchant device comprises a charging post.

9. The transaction method according to claim 8, wherein the identification information of the first device includes: any one of vehicle identification code VIN, license plate number and radio frequency identification.

10. A transaction method is applied to a payment platform and comprises the following steps:

establishing association between identification information of the first device and an account;

receiving an order from a gateway device, the order including an identification of a first device;

operating an account if the identification information of the first device is associated with the account on the payment platform.

11. A transaction method is applied to merchant equipment, the merchant equipment is in communication connection with gateway equipment, and the transaction method comprises the following steps:

establishing a communication connection with a first device;

determining identification information and corresponding transaction information of the first device;

and sending the identification information of the first equipment and the corresponding transaction information to the gateway equipment.

12. The transaction method according to claim 11, wherein before the identification information of the first device is a ciphertext and the identification information of the first device and the corresponding transaction information are sent to the gateway device, the method further comprises:

receiving a key identifier from the first device, wherein the key identifier is the key identifier sent to the first device by the security platform;

and sending the key identifier to the gateway equipment so that the gateway equipment can obtain a corresponding first key according to the key identifier, wherein the first key is a key sent to the first equipment by a security platform.

13. The transaction method according to claim 12, further comprising:

receiving a reservation credential provided by a reservation user during a reservation period;

sending the reservation certificate to an operation platform through the gateway equipment for verification;

under the condition that the reservation certificate is verified, sending the identification information of the first equipment of the reservation user to the gateway equipment so that the gateway equipment can compare the identification information of the first equipment of the reservation user received from the merchant equipment with the identification information of the first equipment of the reservation user received from an operation platform;

and after receiving the information which is sent by the gateway equipment and is successfully compared, providing service for the first equipment.

14. A method of trading, comprising:

receiving, at the gateway device, identification information and transaction information of the first device from the merchant device;

generating an order according to the identification information and the transaction information at the gateway equipment, wherein the order comprises the identification information;

at the gateway device, sending the order to a payment platform;

establishing association between identification information of the first device and an account at the payment platform;

receiving, at the payment platform, an order from the gateway device;

and operating a corresponding account on the payment platform under the condition that the identification information of the first equipment in the order is associated with the account on the payment platform.

15. A gateway device comprising a memory and a processor, the memory storing instructions that are executed by the processor to perform the transaction method of any of claims 1-9.

16. A gateway device, comprising:

the acquisition module is used for acquiring the identification information and the transaction information of the first equipment from the merchant equipment;

the order generation module generates an order according to the identification information and the transaction information, wherein the order comprises the identification information;

and the sending module is used for sending the order to a payment platform so that the payment platform can analyze the identification information of the first equipment from the order and operate an account under the condition that the identification of the first equipment is associated with the account on the payment platform.

17. The gateway device of claim 16, wherein the obtaining module comprises:

a communication unit configured to receive the transaction information from the merchant device and receive a ciphertext of identification information of the first device from the merchant device, the ciphertext of the identification information of the first device being encrypted by the first device;

and the key unit is used for carrying out key negotiation with the first equipment and analyzing the ciphertext into plaintext.

18. The gateway device according to claim 17, wherein the key unit is specifically configured to: receiving a secret key identifier from the merchant equipment, wherein the secret key identifier is the secret key identifier which is sent to the first equipment by the security platform and is sent to the merchant equipment by the first equipment; sending the key identification to the secure platform; and acquiring a first secret key corresponding to the secret key identifier from the security platform, wherein the first secret key is the secret key sent to the first equipment by the security platform.

19. The gateway device of claim 16, wherein the obtaining module is specifically configured to: and analyzing the identification information of the first equipment from a battery management system message sent to the gateway equipment by the merchant equipment.

20. Gateway device according to claim 16, characterized in that said acquisition module is in particular a power line carrier communication module.

21. The gateway device according to claim 16, further comprising a verification module configured to send the identification information of the first device to an operation platform to verify availability of the identification information of the first device; and under the condition that the identification information of the first equipment is available, informing the merchant equipment of providing service for the first equipment.

22. The gateway device according to claim 16, wherein the merchant device is capable of being reserved and is allowed to be occupied by other first devices if the merchant device is not occupied by the first device that can make a reservation within a reservation period, and is capable of releasing the occupation of the merchant device by the other first devices according to reservation credentials provided by a reservation user if the merchant device is occupied by other first devices within the reservation period; the gateway device further includes a reservation module configured to obtain reservation information from an operation platform, where the reservation signal includes: identification information and a reserved time period of a first device for reservation; acquiring identification information of first equipment of the reservation user from the merchant equipment in the reservation time period; comparing the identification information of the first equipment of the reservation user acquired from the operation platform with the identification information of the first equipment of the reservation user acquired from the merchant equipment; and if the comparison is successful, informing the merchant equipment to provide service for the first equipment of the reservation user.

23. A payment platform comprising a memory and a processor, the memory storing instructions that are executed by the processor to perform the transaction method of claim 10.

24. A payment platform, comprising:

the association module is used for establishing association between the identification information of the first device and the account;

a receiving module, configured to receive an order from a gateway device, where the order includes an identifier of a first device;

the operation module is used for operating an account under the condition that the identification information of the first device is associated with the account on the payment platform.

25. A merchant device comprising a memory and a processor, the memory storing instructions that are executed by the processor to perform a transaction method according to any one of claims 11 to 13.

26. A merchant device, comprising:

the communication module is used for establishing communication connection with the first equipment and the gateway equipment;

the determining module is used for determining the identification information of the first equipment and the corresponding transaction information;

the communication module is further configured to send the identification information of the first device and the corresponding transaction information to the gateway device.

27. The merchant device of claim 26, further comprising a security module configured to receive a key identifier from the first device, wherein the key identifier is a key identifier sent by the security platform to the first device; and sending the key identifier to the gateway equipment so that the gateway equipment can obtain a corresponding first key according to the key identifier, wherein the first key is a key sent to the first equipment by a security platform.

28. The merchant apparatus of claim 26,

the reservation module is used for receiving a reservation voucher provided by a reservation user in a reservation time period; sending the reservation certificate to an operation platform through the gateway equipment for verification; under the condition that the reservation certificate is verified, sending the identification information of the first equipment of the reservation user to the gateway equipment so that the gateway equipment can compare the identification information of the first equipment of the reservation user received from the merchant equipment with the identification information of the first equipment of the reservation user received from an operation platform; and after receiving the information which is sent by the gateway equipment and is successfully compared, providing service for the first equipment.

29. The merchant device of claim 26, wherein the communication module comprises a powerline carrier communication module, the powerline carrier communication module being configured to establish a communication connection with the gateway device.

30. The merchant device of any one of claims 26-29, wherein the merchant device comprises a charging post.

31. A transaction system comprising a gateway device according to any of claims 15 to 22, and a payment platform according to claim 23 or 24, and a merchant device according to any of claims 25 to 30.