CN113645306A

CN113645306A - Offline message forwarding method and charging pile system

Info

Publication number: CN113645306A
Application number: CN202110938512.2A
Authority: CN
Inventors: 刘珊; 李常珞; 姜代平; 吴延宇; 袁鑫科
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-11-12

Abstract

The application provides an offline message forwarding method and a charging pile system. The method comprises the following steps: the offline charging pile can broadcast the agent request to other charging piles in the charging field through a physical connection network. The proxy stub responds to the proxy request. The offline charging pile may send charging pile information to the agent charging pile. The agent charging pile can generate an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile. And the agent charging pile sends the offline charging pile registration request to a server. And the server determines whether the offline charging pile is offline or not according to the offline charging pile registration request. And when the offline charging pile is determined to be in an offline state, the server registers the offline charging pile. And after the server finishes the registration, the server returns a registration result to the offline charging pile through the proxy charging pile. The method realizes normal use of the offline charging pile in the offline state, and improves the utilization rate of the charging pile.

Description

Offline message forwarding method and charging pile system

Technical Field

The application relates to a communication technology, in particular to an offline message forwarding method and a charging pile system.

Background

With the rapid development of the electric automobile industry, the charging pile industry is rapidly developed. At present, most of the control units of the charging piles are connected with the charging pile cloud platform through specific protocols. Charging pile cloud platform carries out remote control to the control unit who fills electric pile, realizes operations such as charging measurement.

When the control unit of the charging pile cannot be connected to the charging pile cloud platform for some reason, the charging pile enters an offline state. In the prior art, the charging pile in the offline state generally includes two processing modes. First, the charging post can reject any vehicle's request for charging. Secondly, should fill electric pile and can provide the off-line service of charging.

However, rejecting the charging of any vehicle may result in idleness of the charging post and waste of resources. The offline charging service has a problem that real-time authentication cannot be performed. Therefore, how to realize resource utilization during offline of the charging pile becomes an urgent problem to be solved.

Disclosure of Invention

The application provides an offline message forwarding method and a charging pile system, which are used for solving the problem of how to use a charging pile during an offline period.

In a first aspect, the present application provides an offline packet forwarding method, where the method is applied to an offline charging pile, and the method includes:

broadcasting a proxy request in a physically connected network including a plurality of charging piles;

acquiring charging pile information of the proxy charging piles fed back by the proxy charging piles, wherein the proxy charging piles are one charging pile in the physical connection network;

sending charging pile information of the offline charging piles to the agent charging piles, so that the agent charging piles generate offline charging pile registration requests according to the charging pile information of the offline charging piles and the charging pile information of the agent charging piles, and initiating the offline charging pile registration requests to a server, so that the server generates registration results according to the offline charging pile registration requests, and sends the registration results to the agent charging piles;

and receiving the registration result returned by the agent charging pile.

Optionally, after receiving the registration result of the offline charging pile sent by the agent charging pile, the method further includes:

and when the registration result is that the registration fails, sending a retransmission request to the proxy charging pile so that the proxy charging pile initiates the offline charging pile registration request to the server again according to the retransmission request.

when the registration result is that the registration is successful, sending a charging request to the proxy charging pile so that the proxy charging pile forwards the charging request to a server, wherein the server is used for realizing authentication operation and starting charging according to the charging request; the charging request comprises an authentication request, an off-line starting charging request and first off-line electric meter data.

when the registration result is that the registration is successful, sending a charging stopping request to the agent charging pile so that the agent charging pile forwards the charging stopping request to a server, wherein the server is used for realizing charging operation according to the charging stopping request; and the charging stopping request comprises an offline charging closing request and second offline electric meter data.

In a second aspect, the present application provides an offline packet forwarding method, where the method is applied to a proxy charging pile, and the method includes:

receiving an agent request transmitted by an offline charging pile in a physical connection network comprising a plurality of charging piles in a broadcasting manner, wherein the agent charging pile is one of the charging piles in the physical connection network;

responding the agent request and feeding back the charging pile information of the agent charging pile;

receiving charging pile information of the offline charging pile, which is sent by the offline charging pile;

generating an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile;

sending the offline charging pile registration request to a server so that the server generates a registration result according to the offline charging pile registration request;

and receiving the registration result sent by the server, and returning the registration result to the offline charging pile.

Optionally, the responding to the proxy request includes:

and responding to the proxy request when the proxy information of the charging pile indicates that other offline charging piles are not proxied and the communication state of the charging pile indicates that the charging pile is in good communication with the server.

In a third aspect, the present application provides an offline packet forwarding method, where the method is applied to a server, and the method includes:

receiving an offline charging pile registration request sent by an agent charging pile, wherein the offline charging pile registration request is generated by the agent charging pile according to charging pile information of the offline charging pile and charging pile information of the agent charging pile, the charging pile information of the offline charging pile is sent to the agent charging pile after the agent charging pile receives the charging pile information of the agent charging pile, the agent charging pile sends the charging pile information of the agent charging pile to the offline charging pile when receiving an agent request, the agent request is broadcasted to a physical connection network comprising a plurality of charging piles by the offline charging pile, and the agent charging pile is one of the physical connection networks;

and generating a registration result according to the offline charging pile registration request, and returning the registration result to the agent charging pile so that the agent charging pile returns the registration result to the offline charging pile, wherein the registration result comprises registration success and registration failure.

Optionally, generating a registration result according to the offline charging pile registration request specifically includes:

generating a connection request according to charging pile information of an offline charging pile, and sending the connection request to the offline charging pile; the offline charging pile registration request comprises charging pile information of the offline charging piles and charging pile information of the agent charging piles;

receiving a response result sent by the offline charging pile, wherein the response result comprises connection success and connection failure;

and when the response result is that the connection fails, performing registration processing according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile to generate a registration result.

Optionally, when the response result is a connection failure, performing registration processing according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile, and after obtaining a registration result, the method further includes:

when the registration result is that the registration is successful, acquiring a charging request and a charging stopping request which are transmitted by the offline charging pile and forwarded by the agent charging pile;

and generating charging expense data according to the first offline electric meter data in the charging request and the second offline electric meter data in the charging stopping request.

In a fourth aspect, the present application provides an offline packet forwarding apparatus, where the apparatus is applied to an offline charging pile, and the apparatus includes:

a broadcasting module for broadcasting an agent request in a physical connection network including a plurality of charging piles;

the acquisition module is used for acquiring the charging pile information of the proxy charging pile fed back by the proxy charging pile, wherein the proxy charging pile is one charging pile in the physical connection network;

a sending module, configured to send charging pile information of the offline charging pile to the agent charging pile, so that the agent charging pile generates an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile, and initiates the offline charging pile registration request to a server, so that the server generates a registration result according to the offline charging pile registration request, and sends the registration result to the agent charging pile;

and the receiving module is used for receiving the registration result returned by the agent charging pile.

Optionally, after receiving the registration result of the offline charging pile sent by the agent charging pile, when the registration result is a registration failure, the sending module is further configured to send a retransmission request to the agent charging pile, so that the agent charging pile sends the offline charging pile registration request to the server again according to the retransmission request.

Optionally, after receiving the registration result of the offline charging pile sent by the proxy charging pile, when the registration result is successful, the sending module is further configured to send a charging request to the proxy charging pile, so that the proxy charging pile forwards the charging request to a server, and the server is configured to implement authentication operation and start charging according to the charging request; the charging request comprises an authentication request, an off-line starting charging request and first off-line electric meter data.

Optionally, after receiving the registration result of the offline charging pile sent by the agent charging pile, when the registration result is successful, the sending module is further configured to send a charging stop request to the agent charging pile, so that the agent charging pile forwards the charging stop request to a server, and the server is configured to implement a charging operation according to the charging stop request; and the charging stopping request comprises an offline charging closing request and second offline electric meter data.

In a fifth aspect, the present application provides an offline packet forwarding apparatus, where the apparatus is applied to a proxy charging pile, and the apparatus includes:

the charging system comprises a receiving module, a charging module and a charging module, wherein the receiving module is used for receiving an agent request transmitted by an offline charging pile in a physical connection network comprising a plurality of charging piles in a broadcasting mode, and the agent charging pile is one of the charging piles in the physical connection network;

the response module is used for responding to the agent request and feeding back the charging pile information of the agent charging pile;

the receiving module is further used for receiving charging pile information of the offline charging pile, which is sent by the offline charging pile;

the generation module is used for generating an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile;

the sending module is used for sending the offline charging pile registration request to a server so that the server generates a registration result according to the offline charging pile registration request;

and the receiving module is further used for receiving the registration result sent by the server and returning the registration result to the offline charging pile.

Optionally, the response module is specifically configured to respond to the proxy request when the proxy information of the charging pile indicates that other offline charging piles are not proxied and the communication state of the charging pile indicates that the charging pile is in good communication with the server.

In a sixth aspect, the present application provides an offline packet forwarding apparatus, where the apparatus is applied to a server, and the apparatus includes:

the system comprises a receiving module and a proxy charging pile sending module, wherein the receiving module is used for receiving an offline charging pile registration request sent by the proxy charging pile, the offline charging pile registration request is generated by the proxy charging pile according to charging pile information of the offline charging pile and charging pile information of the proxy charging pile, the charging pile information of the offline charging pile is sent to the proxy charging pile after the proxy charging pile receives the charging pile information of the proxy charging pile, the proxy charging pile sends the charging pile information of the proxy charging pile to the offline charging pile when receiving a proxy request, the proxy request is broadcast to a physical connection network comprising a plurality of charging piles by the offline charging pile, and the proxy charging pile is one of the physical connection networks;

the registration module is used for generating a registration result according to the offline charging pile registration request;

and the sending module is used for returning the registration result to the agent charging pile so as to enable the agent charging pile to return the registration result to the offline charging pile, and the registration result comprises registration success and registration failure.

Optionally, according to the registration module, the connection request is specifically generated according to charging pile information of the offline charging pile, and the connection request is sent to the offline charging pile; the offline charging pile registration request comprises charging pile information of the offline charging piles and charging pile information of the agent charging piles; receiving a response result sent by the offline charging pile, wherein the response result comprises connection success and connection failure; and when the response result is that the connection fails, performing registration processing according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile to generate a registration result.

Optionally, when the response result is a connection failure, performing registration processing according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile, and after obtaining a registration result, the apparatus further includes:

the charging module is used for acquiring a charging request and a charging stopping request which are transmitted by the offline charging pile and forwarded by the agent charging pile when the registration result is that the registration is successful; and generating charging expense data according to the first offline electric meter data in the charging request and the second offline electric meter data in the charging stopping request.

In a seventh aspect, the present application provides an offline charging pile, including: the charging system comprises a charging unit and a control unit, wherein the control unit is communicated with other charging piles through physical connection, and cannot be communicated with a cloud platform through a network; the control unit is configured to execute the offline packet forwarding method in any one of the possible designs of the first aspect and the first aspect.

In an eighth aspect, the present application provides an agent charging pile, the offline charging pile includes: the charging system comprises a charging unit and a control unit, wherein the control unit is communicated with other charging piles through physical connection, and is communicated with a cloud platform through a network; the control unit is configured to execute the second aspect and an offline packet forwarding method in any possible design of the second aspect.

In a ninth aspect, the present application provides a server comprising: a memory and a processor;

the memory is used for storing a computer program; the processor is configured to execute the offline message forwarding method in any one of the possible designs of the third aspect and the third aspect according to the computer program stored in the memory.

In a tenth aspect, the present application provides a charging pile system, including: a server and a plurality of charging posts in any possible design of the ninth aspect and the ninth aspect; the charging pile is in communication connection with the server; the charging piles are physically connected; the charging piles include an offline charging pile in any possible design of the seventh aspect and an agent charging pile in any possible design of the eighth aspect and the eighth aspect.

According to the offline message forwarding method, the offline charging pile can broadcast the agent request to other charging piles in the charging field through the physical connection network; after acquiring charging pile information fed back by the agent charging pile, sending the charging pile information to the agent charging pile; the agent charging pile generates an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile; further enabling the agent charging pile to send the offline charging pile registration request to a server; the server determines whether the offline charging pile is offline or not according to the offline charging pile registration request; when the offline charging pile is determined to be in an offline state, the server registers the offline charging pile; after the server finishes the registration, the server returns the registration result to the offline charging pile through the agency charging pile, so that the effect of normal use of the offline charging pile in an offline state is achieved, and the utilization rate of the charging pile is improved.

Drawings

In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram illustrating connection of charging piles in a charging field according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram illustrating connection of charging piles in a charging field according to an embodiment of the present disclosure;

fig. 3 is a flowchart of an offline message forwarding method according to an embodiment of the present application;

fig. 4 is a schematic broadcast diagram of an offline charging pile according to an embodiment of the present application;

fig. 5 is a schematic broadcast diagram of an offline charging pile according to an embodiment of the present application;

fig. 6 is a flowchart of an offline message forwarding method according to an embodiment of the present application;

fig. 7 is a flowchart of an offline message forwarding method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an offline packet forwarding apparatus according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an offline packet forwarding apparatus according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an offline packet forwarding apparatus according to an embodiment of the present application;

fig. 11 is a schematic hardware structure diagram of an offline charging pile according to an embodiment of the present disclosure;

fig. 12 is a schematic hardware structure diagram of an agent charging pile according to an embodiment of the present application;

fig. 13 is a schematic hardware structure diagram of a server according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a charging pile system according to an embodiment of the present disclosure.

Detailed Description

To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein.

The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise.

It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, items, species, and/or groups thereof.

The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

With the rapid development of the electric automobile industry, the charging pile industry is rapidly developed. At present, most of the control units of the charging piles are connected with the charging pile cloud platform through specific protocols. Charging pile cloud platform carries out remote control to the control unit who fills electric pile, realizes operations such as charging measurement. When the control unit of the charging pile cannot be connected to the charging pile cloud platform for some reason, the charging pile enters an offline state. In the prior art, the charging pile in the offline state generally includes two processing modes. First, the charging pile can refuse the charging of any vehicle. Refusing any vehicle's charging request will result in the charging post being idle. Secondly, should fill electric pile and can provide the off-line service of charging. If the offline charging service is provided, the charging will be delayed, and the real-time authentication will not be possible.

In order to solve the problems, the application provides an offline message forwarding method and a charging pile system. In this application, fill electric pile control unit can connect into physical connection network through physical connection with a plurality of electric piles of filling in a charging station. When one charging pile in the physical connection network is offline, the offline charging pile can broadcast and send an agent request to other charging piles in the physical connection network by using the physical connection between the charging piles. The idle charging pile in the physical connection network can receive the agent request and becomes the agent charging pile of the offline charging pile. The idle charging pile refers to a charging pile which does not act on other offline charging piles. In order to guarantee charging service of the agent charging pile, the phenomenon that interaction data flow between one agent charging pile and the cloud platform is too large is avoided, and each charging pile only can correspond to one offline charging pile. And the agent request does not affect the charging service of the agent charging pile. And then, the offline charging pile sends the charging pile information meeting the open charging protocol (OCPP) standard to the agent charging pile. Fill electric pile and report to cloud platform through OCPP agreement with off-line charging pile's fill electric pile information in agent. And the cloud platform registers the offline charging pile.

After the registration is successful, the offline charging pile can forward the authentication request to the cloud platform through the proxy charging pile, so that the offline charging pile can normally identify the identity of the vehicle in an offline state, and the charging safety of the offline charging pile in the offline state is ensured. The offline charging pile idling problem caused by the network problem is solved, and the utilization rate of the field and energy is improved. In this application, the off-line charging pile can also forward ammeter data to the cloud platform through the agent charging pile to realize this off-line charging pile in real time charging function under the off-line state, improve user experience, reduce the possibility that causes energy supply operator economic loss. Moreover, in the application, the agent charging pile is only used for forwarding the data of the offline charging pile, the use of the agent charging pile is not affected, the utilization rate of the field and energy is further improved, and the utilization rate of each charging pile in the charging field is improved.

Fig. 1 shows a schematic diagram of connection of charging piles in a charging field according to an embodiment of the present disclosure. As shown in fig. 1, a server and a plurality of charging posts may be included in the charging field. Wherein, the cloud platform of this charging field has operated in the server. The cloud platform is used for realizing control and charging of each charging pile in the charging field. Wherein, each fills including charging unit and the control unit in electric pile. The control unit can realize network connection with the cloud platform through a TCP/IP protocol. The network connection may be as shown in dashed lines in fig. 1. Wherein, fill the communication between electric pile and the cloud platform and need accord with the OCPP agreement. Fill and can pass through physical connection between the electric pile of filling in this electric field of charging of cloud platform, constitute physical connection network. The specific connection may be as shown in solid lines in fig. 1. The physical connection mode CAN be 484 serial port connection or CAN bus connection. The physical connection mode may be determined according to an actual scene, which is not specifically limited in the present application.

In one example, an energy storage system may also be included within the charging field. A charging field including an energy storage system may be as shown in fig. 2. Wherein, energy storage system and fill through physical connection between the electric pile.

In the present application, the electronic device is used as an execution subject to execute the sentence editing method of the following embodiments. Specifically, the execution body may be a hardware device of the electronic device, or a software application implementing the following embodiments in the electronic device, or a computer-readable storage medium installed with the software application implementing the following embodiments.

Fig. 3 shows a flowchart of an offline packet forwarding method according to an embodiment of the present application. Based on the embodiments shown in fig. 1 and fig. 2, as shown in fig. 3, taking an offline charging pile, an agent charging pile, and a server in a charging pile system as an execution subject, the method of this embodiment may include the following steps:

s101, broadcasting an agent request in a physical connection network comprising a plurality of charging piles by the offline charging pile.

In this embodiment, each charging pile may include a control unit. When the control unit of a charging pile determines that the charging pile is in an off-line state, the charging pile can broadcast an agent request to other charging piles in the charging field through a physical connection network. For example, as shown in fig. 4, after the charging pile 03 in fig. 1 or fig. 2 loses communication with the cloud platform, the charging pile 03 may broadcast an agent request to other charging piles through a physical connection network.

In one example, the control unit may periodically communicate with a server to determine that communication between the charging post and the server is available. When the charging pile is in communication with the server periodically, the control unit of the charging pile determines that the charging pile is in an offline state when the charging pile is found to be incapable of being connected to the server through a network. Whether this periodic communication can in time learn to fill electric pile off-line to in time handle. This periodic communication can effectively avoid filling the offline state of electric pile just to discover when this fills electric pile is used to influence user experience.

Wherein, the communication period can be determined according to actual needs. For example, it may be communicated once an hour, once a day, etc.

In one example, the control unit of the charging post may continue to periodically communicate with the server while the charging post is offline. When the charging pile is in communication with the server at the periodicity, the control unit of the charging pile ends the proxy state when the charging pile is found to be connected to the server through the network.

S102, the agent charging pile receives an agent request transmitted by the offline charging pile in a physical connection network comprising a plurality of charging piles in a broadcasting mode, and the agent charging pile is one charging pile in the physical connection network.

In this embodiment, except for the offline charging pile broadcasting the agent request in S101, all the other charging piles receive the agent request broadcasted by the offline charging pile. As shown in fig. 5, charging piles other than charging pile 03 receive the agent request.

S103, responding the proxy request by the proxy charging pile, and feeding back the charging pile information of the proxy charging pile.

In this embodiment, each charging pile that receives the agent request responds to the agent request according to its own condition. When the charging pile is in an offline state or takes the place of other offline charging piles, the charging pile feeds back to refuse to take place. When the charging pile does not proxy other offline charging piles and can keep a good communication state with the server, the charging pile feeds back charging pile information. For example, as shown in fig. 5, the charging pile 2 is in an offline state, and the charging pile 4 is an agent charging pile bound to the charging pile 2. At this time, the charging pile 2 and the charging pile 4 feed back the refusal agency. And feeding back charging pile information by other charging piles.

In one example, the charging pile information of the agent charging pile includes an address number. The address number is used to uniquely identify a charging post in the physical connection network.

S104, the offline charging pile acquires charging pile information of the agent charging pile fed back by the agent charging pile, and the agent charging pile is one charging pile in a physical connection network.

In this embodiment, the offline charging pile can receive feedback information of all other charging piles. The offline charging pile can determine that the first charging pile feeding back the charging pile information is the proxy charging pile. This first electric pile that fills of feedback electric pile information must be in the electric pile that fills that is closest with this off-line charging pile in the physical connection network. The agent charging pile selected by the mode can effectively improve the agent efficiency of the agent charging pile.

In one example, the offline charging pile records the address number of the proxy charging pile. After the address number is recorded by the offline charging pile, the offline charging pile can communicate with the agent charging pile in the physical connection network through the address number.

And S105, the offline charging pile sends charging pile information of the offline charging pile to the agent charging pile, so that the agent charging pile generates an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile, and sends the offline charging pile registration request to the server, so that the server generates a registration result according to the offline charging pile registration request, and sends the registration result to the agent charging pile.

In this embodiment, the offline charging pile may send charging pile information to the agent charging pile. The charging pile information can conform to a registration information request specified by an OCPP protocol.

TABLE 1

Parameter(s)	Description of the invention	Options for
			chargeBoxSerialNumber	Charging box serial number	Optionally
chargePointModel	Charging pile type	Must choose
			chargePointSerialNumber	Charging pile serial number	Optionally
chargePointVendor	Charging pile supplier	Must choose
			firmwareVersion	Firmware version	Optionally
iccid	ICCID of SIM card	Optionally
			imsi	IMSI of SIM card	Optionally
meterSerialNumber	Electric meter serial number	Optionally
			meterType	Type of electric meter	Optionally

In one example, the charging pile information of the offline charging pile may be as shown in table 1. The charging pile information of the offline charging pile can comprise one or more parameters of charging box serial numbers, charging pile types, charging pile serial numbers, charging pile suppliers, firmware versions, ICCID of SIM cards, IMSI of the SIM cards, ammeter serial numbers, ammeter types and the like. The charging pile type and the charging pile supplier are necessary options in the charging pile information. The management background can count the charging pile types and the charging pile providers in an off-line state according to the charging pile types and the charging pile providers, so that the use efficiency of the charging piles of different types in a charging field and the cost performance of the charging piles of different providers are determined.

S106, the agent charging pile receives charging pile information of the off-line charging pile, which is sent by the off-line charging pile.

In this embodiment, the agent charging pile may receive charging pile information of the offline charging pile, which is sent correspondingly according to the geological number by the offline charging pile.

S107, the agent charging pile generates an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile.

In this embodiment, the agent charging pile may generate the offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile after receiving the charging pile information of the offline charging pile. The offline charging pile registration request is used for realizing registration of the offline charging pile in a server.

TABLE 2

Message type	Number of mark	Request action	Data of
				2	Random number	DataTransfer	Data (custom Data content)

In one example. The information in the offline charging pile registration request may be as shown in table 2. The offline charging pile registration request comprises a message type, a mark sequence number, a request action and data. The message type may include an offline charging pile registration and an offline charging pile request. And when the content forwarded by the agent charging pile is a charging request of the offline charging pile, the message type is the offline charging pile request. And when the content forwarded by the agent charging pile is the offline charging pile registration request, the message type is offline charging pile registration. The two message types correspond to

numbers

1 and 2. The offline charging pile registers the corresponding number 1, and the offline charging pile requests the corresponding number 2. For example, in this embodiment, the message type is 1, which is used to implement registration of the offline charging pile. The identification sequence number is a random number and is used for identifying the request. The content of the request action includes DataTransfer. The Data comprises self-defined Data content, and Data in the Data is an object of JSON.

TABLE 3

The contents of DataTransfer are shown in Table 3. The DataTransfer includes a forwarding type, a forwarding action, and forwarding information. The forwarding type comprises an offline charging pile registration type and an offline charging pile request type. And the offline charging pile registers the corresponding number 1, and the offline charging pile requests the corresponding number 2. The forwarding action comprises a registration request, an authentication request, a charging starting request, a charging stopping request, a charging pile state notification request and an electric meter data uploading request. The agent charging pile can determine the forwarding action of the operation according to the actual action. Wherein, the content of the forwarding information is determined according to the OCPP protocol and the forwarding action. Different forwarding actions correspond to different forwarding information.

And S108, sending an offline charging pile registration request to the server by the agent charging pile so that the server generates a registration result according to the offline charging pile registration request.

In this embodiment, after the agent charging pile generates the offline charging pile registration request, the agent charging pile sends the offline charging pile registration request to the server.

And S109, the server receives an offline charging pile registration request sent by the agent charging pile, wherein the offline charging pile registration request is generated by the agent charging pile according to charging pile information of the offline charging pile and charging pile information of the agent charging pile, the charging pile information of the offline charging pile is sent to the agent charging pile after the agent charging pile receives the charging pile information of the agent charging pile, the agent charging pile sends the charging pile information of the agent charging pile to the offline charging pile when receiving the agent request, the agent request is broadcasted to a physical connection network comprising a plurality of charging piles by the offline charging pile, and the agent charging pile is one charging pile in the physical connection network.

In this embodiment, the server receives an offline charging pile registration request sent by the agent charging pile. The offline charging pile registration request may include charging pile information of the offline charging pile and charging pile information of the agent charging pile.

S110, the server generates a registration result according to the offline charging pile registration request,

in this embodiment, the server first determines whether the offline charging pile is offline according to the offline charging pile registration request. And when the offline charging pile is in an offline state, the server registers the offline charging pile. Otherwise, the server refuses the registration request of the offline charging pile.

In one example, the specific step of generating the registration result by the server may include:

step 1, the server generates a connection request according to charging pile information of the offline charging pile and sends the connection request to the offline charging pile. The offline charging pile registration request comprises charging pile information of the offline charging pile and charging pile information of the agent charging pile.

In this step, the charging pile information of the offline charging pile may include a network address of the offline charging pile. The server can send a connection request to the offline charging pile according to the network address.

And 2, receiving a response result sent by the offline charging pile by the server, wherein the response result comprises connection success and connection failure.

In this step, after the server sends the connection request, the server may obtain a response result of the offline charging pile. When the offline charging pile is online, the response result is that the connection is successful. When the offline charging pile is in an offline state, the response result is that the connection fails.

And 3, when the response result is that the connection fails, the server performs registration processing according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile to generate a registration result.

In this step, when the response result is a connection failure, the server needs to register the offline charging pile. The registering may specifically include the server registering the offline charging pile and the agent charging pile. In the subsequent communication process, when the server receives the information sent by the agent charging pile, the server preferably needs to determine whether the information is the information of the offline charging pile forwarded by the agent charging pile. When the server finishes the registration, the registration result is that the registration is successful. When the server cannot complete the registration, the registration result is registration failure. The failure to complete registration may include the server failing to complete the registration within a preset time.

And S111, the server returns a registration result to the agent charging pile so that the agent charging pile returns the registration result to the offline charging pile, and the registration result comprises registration success and registration failure.

In this embodiment, after the server completes registration, a registration result is returned to the proxy charging pile.

And S112, the agent charging pile receives the registration result sent by the server and returns the registration result to the offline charging pile.

In this embodiment, after receiving the registration result, the proxy server forwards the registration result to the offline electric pile.

And S113, receiving the registration result returned by the proxy charging pile by the offline charging pile.

In this embodiment, the offline charging pile receives the registration result forwarded by the proxy charging pile. And when the registration result is that the registration is successful, the offline charging pile can realize the operations of authentication, charging and the like. When the registration result is that the registration fails, the offline charging pile may initiate the registration to the server again.

According to the offline message forwarding method, when the control unit of one charging pile determines that the charging pile is in an offline state, the charging pile can broadcast the agent request to other charging piles in the charging field through the physical connection network. All other charging piles in the charging field receive the agent request broadcasted by the offline charging pile. And each charging pile receiving the agent request responds to the agent request according to the condition of the charging pile. The offline charging pile can receive feedback information of all other charging piles. The offline charging pile can determine that the first charging pile feeding back the charging pile information is the proxy charging pile. The offline charging pile may send charging pile information to the agent charging pile. The agent charging pile can generate an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile after receiving the charging pile information of the offline charging pile. And the agent charging pile sends the offline charging pile registration request to a server. And the server receives an offline charging pile registration request sent by the agent charging pile. The server firstly determines whether the offline charging pile is offline or not according to the offline charging pile registration request. And when the offline charging pile is in an offline state, the server registers the offline charging pile. And after the server finishes the registration, returning a registration result to the proxy charging pile. And after receiving the registration result, the proxy server forwards the registration result to the offline electric pile. In the application, through binding an agent charging pile for the offline charging pile, the registration of the offline charging pile in the server is realized, so that the offline charging pile can be normally used in an offline state, the utilization rate of the charging pile is improved, and the utilization rate of a field and energy is improved.

Fig. 6 shows a flowchart of an offline packet forwarding method according to an embodiment of the present application. Based on the embodiments shown in fig. 1 to fig. 5, as shown in fig. 6, taking the offline charging pile, the agent charging pile, and the server in the charging pile system as an execution subject, when the registration result is a registration failure, the method of this embodiment may further include the following steps:

s201, the offline charging pile receives a registration result returned by the agent charging pile, and the registration result is registration failure.

Step S201 is similar to the step S113 in the embodiment of fig. 3, and this embodiment is not described herein again.

And S202, the offline charging pile generates a retransmission request according to the registration result, wherein the retransmission request is used for indicating the agent charging pile to initiate an offline charging pile registration request to the server again according to the retransmission request.

In this embodiment, the reason that the registration result is the registration failure may include that after the server sends the connection request to the offline charging pile, the response result is that the connection is successful. Or, the reason that the registration result is the registration failure may further include that the registration failure occurs when the server registers the offline charging pile.

When the offline charging pile receives the registration result of the registration failure, the offline charging pile may generate a retransmission request. When the offline charging pile transmits the retransmission request to the proxy charging pile, the proxy charging pile transmits the offline charging pile registration request to the server again.

And S203, determining the generation times of the retransmission request in the registration process by the offline charging pile.

In this embodiment, the number of times of retransmission requests generated by the offline charging pile in the registration process may also be accumulated by the offline charging pile. Or, the offline charging pile may also accumulate the number of times of the registration result of the registration failure received by the offline charging pile in the registration process. The registration process may be a registration process starting from the time when the control unit of the offline charging pile finds itself in the offline state. When the control unit of the offline charging pile finds itself to be in an offline state in the next period and starts to register again, the registration process is the next registration process. In the next registration process, the number of times of retransmission requests generated by the offline charging pile can be accumulated again by the offline charging pile.

And S204, when the generation times of the retransmission requests are larger than or equal to a first threshold value, ending the registration.

In this embodiment, the control unit of the offline charging pile compares the generation frequency of the retransmission request with a first threshold. And when the generation times of the retransmission requests are larger than or equal to the first threshold value, the control unit of the offline charging pile finishes the registration. And after the control unit of the offline charging pile finishes the registration, the offline charging pile enters an unavailable state. The vehicle will be unable to use this stake of charging to charge.

The first threshold may be 3 times, 5 times, etc., and the times may be determined according to actual experience.

In one example, to avoid sending offline charging pile registration requests to the server too frequently by the offline charging pile, the controller of the offline charging pile may update the communication cycle with the server. Specifically, when the control unit of the offline charging pile determines that the control unit is offline and in an agent-free state, the controller of the offline charging pile may update the communication cycle with the server. The updated communication period may be greater than the original communication period.

In another example, to avoid that the offline charging pile is offline for a long time and has no agent, the controller of the offline charging pile may update the communication cycle with the server. Specifically, when the control unit of the offline charging pile determines that the control unit is offline and in an agent-free state, the controller of the offline charging pile may update the communication cycle with the server. The updated communication period may be less than the original communication period.

And S205, when the generation times of the retransmission requests are smaller than a first threshold value, the offline charging pile sends the retransmission requests to the proxy charging pile.

In this embodiment, the control unit of the offline charging pile compares the generation frequency of the retransmission request with a first threshold. And when the generation times of the retransmission requests are smaller than a first threshold value, the offline charging pile sends the retransmission requests to the agent charging pile. And the agent charging pile sends an offline charging pile registration request to the server again according to the retransmission request.

And S206, sending an offline charging pile registration request to the server by the agent charging pile so that the server generates a registration result according to the offline charging pile registration request.

And S207, the server receives an offline charging pile registration request sent by the agent charging pile, wherein the offline charging pile registration request is generated by the agent charging pile according to charging pile information of the offline charging pile and charging pile information of the agent charging pile, the charging pile information of the offline charging pile is sent to the agent charging pile after the agent charging pile receives the charging pile information of the agent charging pile, the agent charging pile sends the charging pile information of the agent charging pile to the offline charging pile when receiving the agent request, the agent request is broadcasted to a physical connection network comprising a plurality of charging piles by the offline charging pile, and the agent charging pile is one charging pile in the physical connection network.

S208, the server generates a registration result according to the offline charging pile registration request,

s209, the server returns a registration result to the agent charging pile so that the agent charging pile returns the registration result to the offline charging pile, and the registration result comprises registration success and registration failure.

S210, the agent charging pile receives the registration result sent by the server and returns the registration result to the offline charging pile.

S211, the offline charging pile receives a registration result returned by the agent charging pile.

Steps S206 to S211 are similar to steps S108 to S113 in the embodiment of fig. 3, and are not described herein again.

According to the offline message forwarding method, after the server finishes registration, the server returns the registration result to the offline charging pile through the proxy charging pile. When the registration result is that the registration fails, the offline charging pile may generate a retransmission request. And the retransmission request is used for indicating the agent charging pile to initiate an offline charging pile registration request to the server again according to the retransmission request. The offline charging pile can also accumulate the times of the retransmission requests generated by the offline charging pile in the registration process. And when the generation times of the retransmission requests are larger than or equal to the first threshold value, the control unit of the offline charging pile finishes the registration. When the generation times of the retransmission requests are smaller than a first threshold value, the offline charging pile sends the retransmission requests to the proxy charging pile, and the proxy charging pile sends the offline charging pile registration requests to the server again. And the server receives an offline charging pile registration request sent by the agent charging pile. The server firstly determines whether the offline charging pile is offline or not according to the offline charging pile registration request. And when the offline charging pile is in an offline state, the server registers the offline charging pile. And after the server finishes the registration, returning a registration result to the proxy charging pile. And after receiving the registration result, the proxy server forwards the registration result to the offline electric pile. In the application, the offline charging pile can request the server for registration again when the registration fails by generating the retransmission request, and meanwhile, the retransmission times of the offline charging pile are limited by setting the first threshold value, so that the offline charging pile is prevented from being trapped in a dead loop, and the registration efficiency is improved.

Fig. 7 shows a flowchart of an offline packet forwarding method according to an embodiment of the present application. Based on the embodiments shown in fig. 1 to fig. 6, as shown in fig. 7, taking the offline charging pile, the agent charging pile, and the server in the charging pile system as an execution subject, when the registration result is that the registration is successful, the method of this embodiment may further include the following steps:

s301, the offline charging pile sends a charging request to the agent charging pile. The charging request comprises an authentication request, an off-line starting charging request and first off-line electric meter data.

In this embodiment, when the offline charging pile receives the registration result that the registration is successful, the control unit of the offline charging pile may control the charging unit to charge the vehicle. When the vehicle is connected to the offline charging pile, the control unit of the offline charging pile acquires the vehicle information and the vehicle charging request of the vehicle. And the control unit of the offline charging pile generates an authentication request according to the vehicle information. And the control unit of the offline charging pile generates an offline starting charging request according to the vehicle charging request. And the control unit of the offline charging pile generates a charging request according to the authentication request, the offline starting charging request and the first offline electric meter data of the charging pile. The first ammeter data are ammeter data of the offline charging pile before charging is started. And the offline charging pile sends the charging request to the agent charging pile. The charging request will be forwarded by the proxy charging pole to a server.

S302, the proxy charging pile forwards a charging request to the server so that the server can realize authentication operation and start charging according to the charging request.

In this embodiment, when the agent charging pile forwards the charging request sent by the offline charging pile, the agent charging pile may generate forwarding data as shown in table 2. At this time, the message type may be 2, and the message type is used to implement the request of the offline charging pile. The request is used for realizing the authentication or charging of the offline charging pile.

When the server receives the charging request, the server may authenticate the vehicle requesting charging according to an authentication request in the charging request. When the vehicle authentication is successful, the server may issue an instruction to start charging. The command for starting charging can be forwarded to the offline charging pile through the proxy server, and the offline charging pile starts to charge the vehicle according to the command for starting charging. The server can also charge the vehicle according to the first offline electric meter data in the charging request.

And S303, the offline charging pile sends a charging stopping request to the agent charging pile, wherein the charging stopping request comprises an offline charging closing request and second offline electric meter data.

In this embodiment, the control unit of the offline charging pile may further obtain a vehicle stop charging request of the vehicle. The vehicle charging stopping request is sent to a control unit of the offline charging pile by the vehicle after the electric quantity of the vehicle reaches a preset value. The vehicle stop charging request may be transmitted by a circuit, or may be transmitted via a network. And the control unit of the offline charging pile generates a charging stopping request according to the vehicle charging stopping request. The charging stop request comprises an offline charging stop request and second offline electric meter data. The second offline electric meter data is the electric meter data of the offline charging pile when the charging is stopped. And the offline charging pile sends the charging request to the agent charging pile. The charging request will be forwarded by the proxy charging pole to a server.

S304, the proxy charging pile forwards a charging stopping request to the server, so that the server is used for realizing authentication operation and starting charging according to the charging request.

In this embodiment, when the agent charging pile forwards the charging stop request sent by the offline charging pile, the agent charging pile may generate forwarding data as shown in table 2. At this time, the message type may be 2, and the message type is used to implement the request of the offline charging pile. The request is used for realizing the authentication or charging of the offline charging pile.

When the server receives the stop charging request, the server may end the charging according to the stop charging request and determine the final charge. The server may also generate an instruction to stop charging according to the stop charging request. The command for stopping charging can be forwarded to the offline charging pile through the proxy server, and the offline charging pile stops charging the vehicle according to the command for stopping charging.

S306, the server obtains the charging request and the charging stopping request which are transmitted by the offline charging pile and forwarded by the agent charging pile.

In this embodiment, the server may distinguish whether the charging request and the charging stop request are charging requests and charging stop requests of the agent charging pile itself or charging requests and charging stop requests of the offline charging pile forwarded by the agent charging pile when receiving the charging request and the charging stop request sent by the agent charging pile. And when the charging request and the charging stop request are the charging request and the charging stop request of the agent charging pile, the server processes the charging request and the charging stop request in a thread of the agent charging pile. And when the charging request and the charging stop request are the charging request and the charging stop request of the offline charging pile forwarded by the agent charging pile, the server processes the charging request and the charging stop request in a thread of the offline charging pile.

In one example, each charging post may correspond to a thread in the server. The thread is used for uniquely processing the operation corresponding to the charging pile.

In another example, each charging post may correspond to a data table in the server. When the server processes an operation corresponding to one charging pile, the server can record information such as the processing result and the processing log in a data table corresponding to the charging pile.

And S307, the server generates charging expense data according to the first offline electric meter data in the charging request and the second offline electric meter data in the charging stopping request.

In this embodiment, when the vehicle authentication is successful, the server may issue an instruction to start charging. And the offline charging pile starts to charge the vehicle according to the charging starting instruction. When the server receives the charging stop request, the server may further generate an instruction to stop charging according to the charging stop request. And the offline charging pile stops charging the vehicle according to the charging stopping instruction. The server can also charge the vehicle according to the first offline electric meter data in the charging request. The server can settle the charging of the vehicle according to the second off-line electric meter data in the charging stop request to obtain charging fee data. The charging fee data may include a charging fee and a fee list.

In one example, the server may determine the charging capacity of the vehicle during the charging process according to a difference between the first offline electric meter data and the second offline electric meter data. The server can calculate charging fee according to the preset charging rule and the charging electric quantity. The server can also generate a bill of charge according to a preset charging rule and the charging electric quantity. The charging list can be sent to the client terminal together with the charging fee, so that the client can check the charging fee and the charging list of the vehicle in the charging pile through the client terminal.

In another example, the server may also determine customer information based on the vehicle information. The server may also deduct the charging fee directly from the customer's account after determining the charging fee.

In yet another example, the offline charging post may also periodically send offline meter data to the server via the proxy charging post during charging of the vehicle. The period of sending the offline electric meter data by the offline charging pile can be determined according to actual needs, and the sending period is irrelevant to the communication period between the offline charging pile and the server. The server can periodically update the charging condition of the vehicle for charging according to the offline electric meter data periodically sent by the offline charging pile. The charging condition can be synchronized to the client terminal by the server, so that the client can conveniently check the charging condition of the vehicle in real time.

According to the offline message forwarding method, when the vehicle is connected to the offline charging pile, the control unit of the offline charging pile generates a charging request according to the vehicle charging request of the vehicle. And the proxy charging pile forwards a charging request to the server so that the server realizes authentication operation and starts charging according to the charging request. The control unit of the offline charging pile can also acquire a vehicle stop charging request of the vehicle. And the control unit of the offline charging pile generates a charging stopping request according to the vehicle charging stopping request. And the proxy charging pile forwards a charging stopping request to the server so that the server is used for realizing authentication operation and starting charging according to the charging request. And the server acquires the charging request and the charging stopping request transmitted by the offline charging pile and forwarded by the agent charging pile. And the server generates charging expense data according to the first offline electric meter data in the charging request and the second offline electric meter data in the charging stopping request. In the application, the charging pile is used for agency, so that normal use of the offline charging pile is realized, and the use efficiency of the offline charging pile is improved.

Fig. 8 is a schematic structural diagram of an offline message forwarding apparatus according to an embodiment of the present application, and as shown in fig. 8, an offline message forwarding apparatus 10 according to this embodiment is used to implement an operation corresponding to an offline charging pile in any method embodiment described above, where the offline message forwarding apparatus 10 according to this embodiment includes:

a broadcasting module 11 for broadcasting the agent request in a physical connection network including a plurality of charging piles.

The acquiring module 12 is configured to acquire charging pile information of the proxy charging pile fed back by the proxy charging pile, where the proxy charging pile is one charging pile in a physical connection network.

And the sending module 13 is configured to send the charging pile information of the offline charging pile to the agent charging pile, so that the agent charging pile generates an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile, and sends the offline charging pile registration request to the server, so that the server generates a registration result according to the offline charging pile registration request, and sends the registration result to the agent charging pile.

And the receiving module 14 is configured to receive a registration result returned by the agent charging pile.

In an example, after receiving the registration result of the offline charging pile sent by the agent charging pile, when the registration result is a registration failure, the sending module 13 is further configured to send a retransmission request to the agent charging pile, so that the agent charging pile sends the offline charging pile registration request to the server again according to the retransmission request.

In an example, after receiving the registration result of the offline charging pile sent by the proxy charging pile, when the registration result is successful, the sending module 13 is further configured to send a charging request to the proxy charging pile, so that the proxy charging pile forwards the charging request to a server, and the server is configured to implement an authentication operation and start charging according to the charging request. The charging request comprises an authentication request, an off-line starting charging request and first off-line electric meter data.

In an example, after receiving the registration result of the offline charging pile sent by the agent charging pile, when the registration result is successful, the sending module 13 is further configured to send a charging stop request to the agent charging pile, so that the agent charging pile forwards the charging stop request to a server, and the server is configured to implement a charging operation according to the charging stop request. The charging stopping request comprises an offline charging closing request and second offline electric meter data.

The offline packet forwarding apparatus 10 provided in the embodiment of the present application may implement the foregoing method embodiment, and for specific implementation principles and technical effects, reference may be made to the foregoing method embodiment, which is not described herein again.

Fig. 9 shows a schematic structural diagram of an offline message forwarding apparatus according to an embodiment of the present application, and as shown in fig. 9, an offline message forwarding apparatus 20 according to this embodiment is used to implement an operation corresponding to an agent charging pile in any of the method embodiments, where the offline message forwarding apparatus 20 according to this embodiment includes:

the receiving module 21 is configured to receive an agent request transmitted by an offline charging pile in a broadcast manner in a physical connection network including a plurality of charging piles, where the agent charging pile is one of the charging piles in the physical connection network.

And the response module 22 is used for responding to the agent request and feeding back the charging pile information of the agent charging pile.

The receiving module 21 is further configured to receive charging pile information of the offline charging pile, which is sent by the offline charging pile.

And the generating module 23 is configured to generate an offline charging pile registration request according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile.

And the sending module 24 is configured to send an offline charging pile registration request to the server, so that the server generates a registration result according to the offline charging pile registration request.

The receiving module 21 is further configured to receive a registration result sent by the server, and return the registration result to the offline charging pile.

In an example, the response module 22 is specifically configured to respond to the agent request when the agent information of the charging pile indicates that other offline charging piles are not proxied, and the communication status of the charging pile indicates that the charging pile is in good communication with the server.

The offline packet forwarding apparatus 20 provided in the embodiment of the present application may implement the foregoing method embodiment, and for specific implementation principles and technical effects, reference may be made to the foregoing method embodiment, which is not described herein again.

Fig. 10 shows a schematic structural diagram of an offline message forwarding apparatus according to an embodiment of the present application, and as shown in fig. 10, an offline message forwarding apparatus 30 according to this embodiment is used to implement an operation corresponding to a server in any of the above method embodiments, where the offline message forwarding apparatus 30 according to this embodiment includes:

the charging system comprises a receiving module 31 for receiving an offline charging pile registration request sent by an agent charging pile, wherein the offline charging pile registration request is generated by the agent charging pile according to charging pile information of the offline charging pile and charging pile information of the agent charging pile, the charging pile information of the offline charging pile is sent to the agent charging pile after the agent charging pile receives the charging pile information of the agent charging pile, the agent charging pile sends the charging pile information of the agent charging pile to the offline charging pile when receiving the agent request, the agent request is broadcasted to a physical connection network comprising a plurality of charging piles by the offline charging pile, and the agent charging pile is one charging pile in the physical connection network.

And the registration module 32 is configured to generate a registration result according to the offline charging pile registration request.

And the sending module 33 is configured to return a registration result to the agent charging pile, so that the agent charging pile returns the registration result to the offline charging pile, where the registration result includes registration success and registration failure.

In an example, the registration module 32 is specifically configured to generate a connection request according to charging pile information of the offline charging pile, and send the connection request to the offline charging pile. The offline charging pile registration request comprises charging pile information of the offline charging pile and charging pile information of the agent charging pile. And receiving a response result sent by the offline charging pile, wherein the response result comprises connection success and connection failure. And when the response result is that the connection fails, performing registration processing according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile to generate a registration result.

In one example, when the response result is a connection failure, performing registration processing according to charging pile information of the offline charging pile and charging pile information of the agent charging pile, and after obtaining the registration result, the apparatus further includes:

and the charging module is used for acquiring a charging request and a charging stopping request which are forwarded by the agent charging pile and sent by the offline charging pile when the registration result is that the registration is successful. And generating charging expense data according to the first offline electric meter data in the charging request and the second offline electric meter data in the charging stopping request.

The offline packet forwarding apparatus provided in the embodiment of the present application may implement the foregoing method embodiment, and for specific implementation principles and technical effects, reference may be made to the foregoing method embodiment, which is not described herein again.

Fig. 11 shows a hardware structure diagram of an offline charging pile according to an embodiment of the present application. As shown in fig. 11, the offline charging pile 40 is configured to implement the operation corresponding to the offline charging pile 40 in any of the above method embodiments, where the offline charging pile 40 of this embodiment may include: a charging unit 41 and a control unit 42.

And a charging unit 41 for starting charging to the vehicle or stopping charging to the vehicle according to a control instruction of the control unit.

The control unit 42 may communicate with other charging posts via a physical connection network. The control unit 42 cannot communicate with the cloud platform through the network during its offline. The control unit 42 may also send a control instruction to the charging unit, control the charging unit to perform charging or stop charging.

The electronic device provided in this embodiment may be configured to execute the offline packet forwarding method, and an implementation manner and a technical effect of the electronic device are similar to each other, which are not described herein again.

Fig. 12 shows a hardware structure diagram of an agent charging pile according to an embodiment of the present application. As shown in fig. 12, the agent charging pile 50 is configured to implement the operation corresponding to the agent charging pile 50 in any of the above method embodiments, where the agent charging pile 50 of this embodiment may include: a charging unit 51 and a control unit 52.

And a charging unit 51 for starting charging to the vehicle or stopping charging to the vehicle according to a control instruction of the control unit.

The control unit 52 may communicate with other charging posts via a physical connection network. And the control unit 42 communicates with the cloud platform through a network. The control unit 42 may also send a control instruction to the charging unit, control the charging unit to perform charging or stop charging.

Fig. 13 shows a hardware structure diagram of a server according to an embodiment of the present application. As shown in fig. 13, the server 60 is configured to implement the operation corresponding to the server 60 in any of the above method embodiments, where the server 60 of this embodiment may include: a memory 61 and a processor 62.

A memory 61 for storing a computer program. The Memory may include a Random Access Memory (RAM), and may further include a Non-Volatile Memory (NVM), such as at least one magnetic disk Memory, and may also be a usb disk, a removable hard disk, a read-only Memory, a magnetic disk or an optical disk.

And a processor 62 for executing the computer program stored in the memory to implement the offline message forwarding method in the above embodiment. Reference may be made in particular to the description relating to the method embodiments described above.

In one example, the memory 21 may be separate or integrated with the processor 22.

In one example, the server 60 may also include a communication interface. The communication interface is used for communicating with a control unit of each charging pile in the charging field.

Fig. 14 shows a schematic structural diagram of a charging pile system according to an embodiment of the present application. As shown in fig. 14, the charging pile system 70 is configured to implement corresponding operations in any one of the above method embodiments, and the charging pile system 70 of this embodiment may include: a server 71 and a charging post 72.

The server 71 may be as shown in fig. 13.

The charging pile 72 is a charging pile in a charging field. A plurality of charging posts 72 may be included within the charging field. Each charging post 72 may be communicatively coupled to the server 71. The communication needs to conform to the OCPP protocol. The plurality of charging posts 72 in the charging field may be physically connected. The physical connection may enable a plurality of charging posts 72 in the charging field to form a physical quantity connection network. The plurality of charging piles may include an offline charging pile as shown in fig. 11 and an agent charging pile as shown in fig. 12.

The physical connection between the charging piles 72 may be a 484-serial connection or a bus connection. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.

It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.

In the several embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. For example, the above-described embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.

The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor to execute some steps of the methods according to the embodiments of the present application.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. Which when executed performs steps comprising the method embodiments described above. And the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An offline message forwarding method is applied to an offline charging pile, and comprises the following steps:

and receiving the registration result returned by the agent charging pile.

2. The method of claim 1, wherein after receiving the registration result of the offline charging pile sent by the agent charging pile, the method further comprises:

3. The method of claim 1, wherein after receiving the registration result of the offline charging pile sent by the agent charging pile, the method further comprises:

4. The method of claim 1, wherein after receiving the registration result of the offline charging pile sent by the agent charging pile, the method further comprises:

5. An offline message forwarding method is applied to a proxy charging pile, and comprises the following steps:

6. The method of claim 5, wherein responding to the proxy request comprises:

7. An offline message forwarding method is applied to a server, and the method comprises the following steps:

8. The method according to claim 7, wherein generating a registration result according to the offline charging pile registration request specifically includes:

9. The method of claim 8, wherein when the response result is a connection failure, registration processing is performed according to the charging pile information of the offline charging pile and the charging pile information of the agent charging pile, and after a registration result is obtained, the method further comprises:

10. The utility model provides an electric pile is filled to off-line which characterized in that, electric pile is filled to off-line includes: the charging system comprises a charging unit and a control unit, wherein the control unit is communicated with other charging piles through physical connection, and cannot be communicated with a cloud platform through a network; the control unit is configured to implement the offline packet forwarding method according to any one of claims 1 to 4.

11. An agent charging pile, characterized in that, the agent charging pile includes: the charging system comprises a charging unit and a control unit, wherein the control unit is communicated with other charging piles through physical connection, and is communicated with a cloud platform through a network; the control unit is configured to implement the offline packet forwarding method according to any one of claims 5 or 6.

12. A server, characterized in that the server comprises: a memory and a processor;

the memory is used for storing a computer program; the processor is configured to implement the offline message forwarding method according to any one of claims 7 to 9, according to the computer program stored in the memory.

13. A charging pile system, the system comprising: the server of claim 12 and a plurality of charging posts; the charging pile is in communication connection with the server; the charging piles are physically connected to form a physical connection network; the plurality of charging piles include the offline charging pile of claim 10 and the agent charging pile of claim 11.