CN-122001873-A - Method for remotely upgrading charging pile through concentrator and distributed power supply access unit

CN122001873ACN 122001873 ACN122001873 ACN 122001873ACN-122001873-A

Abstract

The invention discloses a method for remotely upgrading a charging pile through a concentrator and a distributed power access unit. And the concentrator is used for sending an upgrade package to the charging pile through the distributed power supply access unit, and the charging pile sends an activation instruction to uniformly activate the upgrade after receiving the upgrade package. Before the upgrade packet is sent, the upgrade packet is split into data frames and is attached with a check code, and a receiver checks and resends if the check fails. The upgrade package is provided with a transmission time and a charging pile serial number for generating logs and tracing faults. The method can realize remote upgrading of the charging pile controlled by the main station of the power system, has high stability and labor saving, can be uniformly managed by the power company, is convenient for tracing, and can meet the centralized control requirement of the power system. And the transmission success rate when the network is poor can be improved, the data processing flow and the resource allocation are optimized, and the stable operation and the function improvement of the charging pile network are ensured. A charging pile for upgrading using the remote upgrading method is also disclosed.

Inventors

HU TIANQI
WANG WENGANG
ZHAO FUKUAN
YU DEMING
XU CHENFEI
GAO JUNJIE
YIN CHUNJIE

Assignees

青岛乾程科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241218

Claims (9)

1. A method of remotely upgrading a charging stake, comprising the steps of: s1, sending a charging pile upgrading packet to a distributed power access unit through a concentrator; S2, after the distributed power supply access unit receives the power successfully, distributing the upgrade package to the charging piles connected with the distributed power supply access unit according to the instruction of the concentrator; And S3, after the charging pile receives the upgrade package, uniformly activating the upgrade through the concentrator.
2. The method of claim 1, wherein the step S2 distributes the upgrade package to any number of the charging piles connected to the distributed power access unit when distributing the upgrade package.
3. The method for remotely upgrading a charging pile according to claim 1, wherein said step S1 comprises the steps of: S1.1, sending a check message to the distributed power access unit, and splitting the upgrade package into data frames before the concentrator sends the upgrade package, wherein the data frames comprise check codes of the data frames; S1.2, after the distributed power access unit receives the data frame sent by the concentrator, calculating a check value of the data frame for checking, and returning a check result to the concentrator; S1.3, if the verification result is failure, stopping the concentrator from sending the subsequent data frames, and recording receiving failure, and if the verification result is success, continuing to send the subsequent data frames by the concentrator until the returned verification result is failure or all the data frames of the upgrade package are sent; s1.4, after all the data frames are sent, the distributed power supply access unit calculates the check value of the whole data frames, compares the check value with the whole check code in the check message, returns successful reception to the concentrator if the check value is consistent with the whole check code in the check message, integrates the data frames into an upgrade package, and returns failure reception to the concentrator if the check value is inconsistent with the whole check code.
4. The method for remotely upgrading a charging pile according to claim 2, wherein said step S2 comprises the steps of: S2.1, the upgrading packet sent to the distributed power access unit by the concentrator comprises a transmission time and a serial number of the charging pile; S2.2, after receiving the upgrade package, the distributed power supply access unit sends a return value to the concentrator, and simultaneously sends a check message to the charging pile according to the serial number, and splits the upgrade package into data frames, wherein the data frames comprise check codes of the data frames; S2.3, the distributed power supply access unit selects a communication method for distributing the data frames to the charging piles according to the received sequence numbers, and sends the data frames to the corresponding charging piles according to the transmission time; s2.4, after the charging pile receives the data frame, calculating a check value of the data frame and checking the check value, and returning a check result to the distributed power supply access unit; s2.5, if the verification result is failure, the distributed power supply access unit stops sending the subsequent data frames and records the receiving failure, and if the verification result is success, the distributed power supply access unit continues to send the subsequent data frames until the returned verification result is failure or all the data frames of the upgrade package are sent; And S2.6, after the data frames are all sent, the charging pile calculates the check value of the whole data frame and compares the check value with the whole check code in the check message, if the check value is consistent with the whole check code, the receiving success is returned to the distributed power access unit, the data frames are integrated into the upgrade package, and if the check value is inconsistent with the whole check code, the receiving failure is returned to the distributed power access unit.
5. A method of remotely upgrading a charging stake as claimed in claim 3 or claim 4, wherein the step of verifying is as follows: S3.1, comparing the calculated check value with the check code in the received data frame, if the check value is consistent with the check code in the received data frame, storing the data frame, and returning a check result to be successful; and S3.2, if the check value is inconsistent with the check code, retransmitting the data frame, and returning a check result to be failure after retransmitting for more than a specified number of times.
6. The method of claim 5, wherein the predetermined number of times in step S3.2 is five.
7. A method for remotely upgrading a charging post according to claim 3 or claim 4, wherein the check message includes an upgrade request frame of an upgrade package total byte number, an integral check code, a total frame number, a total file check, and an upgrade object.
8. A method of remotely upgrading a charging pile according to claim 1, wherein the active upgrade in step S1.3 has the steps of: s4.1, the concentrator sends an activation instruction to the distributed power supply access unit; s4.2, the distributed power supply access unit sends the received activation instruction to the charging pile; and S4.3, after the charging pile receives the activation instruction, upgrading by using the upgrade package.
9. A charging pile remote upgrading device, characterized in that a method for remotely upgrading a charging pile according to any one of claims 1-8 is used.

Description

Method for remotely upgrading charging pile through concentrator and distributed power supply access unit Technical Field The invention relates to the field of electric car charging piles, in particular to a method for remotely upgrading a charging pile through a concentrator and a distributed power supply access unit. Background After the electric automobile charging pile is connected with a power grid, obvious influence can be brought to the running situation of the power grid. In the implementation process of the charging pile access operation, the load peak time of a conventional power grid needs to be seriously avoided, and the charging load of the electric automobile is subjected to decentralized processing by means of effective and reasonable means so as to reduce the impact effect on the power grid to the greatest extent. In order to achieve coordination and sustainable development between the electric vehicle and the electric network, it is necessary to implement precise control or guiding operation for the electric vehicle charging process, thereby ensuring that the power supply capacity of the electric network side and the charging requirement of the electric vehicle maintain a supply-demand balance state, and reducing adverse effects on the operation of the electric network. Therefore, it is necessary to plan and build a unified management and control system of the charging pile, and cultivate a few core charging service platform operators, so as to promote most public facilities and special facilities to access one or more designated platforms. Disclosure of Invention In order to solve the problems, the invention provides a charging pile remote upgrading method realized based on a distributed power access unit, which comprises the following steps: S1, sending a charging pile upgrading program to a distributed power access unit through a concentrator; S2, after the distributed power supply access unit receives the power successfully, distributing an upgrade package to the charging piles connected with the distributed power supply access unit according to the instruction of the concentrator; And S3, after the charging pile receives the upgrade package, uniformly activating the upgrade through the concentrator. Data are transmitted between the concentrator and the charging pile through the distributed power access unit, and through the architecture design, the concentrator, the charging pile and the charging pile can be clearly divided into work and work independently. The distributed power supply access unit shares the work task that the concentrator needs to directly interact and transmit complex data with the charging pile, so that the concentrator does not need to consume a large amount of computing resources and communication bandwidth to process data transactions related to the charging pile, the work load of the concentrator is greatly reduced, the data processing flow and resource allocation efficiency of the whole system are optimized, and the stability and reliability of the whole system are further improved. Preferably, when the upgrade package is distributed in step S2, the upgrade package is distributed to any number of charging piles connected to the distributed power access unit. Sometimes, partial charging piles fail to upgrade, and the charging piles which fail to upgrade can be selected for a re-upgrade attempt. Further, step S1 includes the steps of: s1.1, sending a check message to a distributed power access unit, and splitting the upgrade package into data frames before the concentrator sends the upgrade package, wherein the check code of the current data frame in each frame; s1.2, after the distributed power supply access unit receives the data frame sent by the concentrator, calculating a check value of the data frame for checking, and returning a check result to the concentrator; S1.3, if the verification result is failure, the concentrator stops sending the subsequent data frames, records the receiving failure, and if the verification result is successful, the concentrator continues to send the subsequent data frames until the returned verification result is failure or all data frames of the upgrade package are sent; s1.4, after all the data frames are sent, the distributed power supply access unit calculates the check value of the whole data frame, compares the check value with the whole check code in the check message, returns successful reception to the concentrator if the check value is consistent with the whole check code in the check message, integrates the data frame into an upgrade package, and returns failure reception to the concentrator if the check value is inconsistent with the whole check code in the check message. By splitting and checking the upgrade package, the data can be ensured not to be lost, and the network occupation can be greatly reduced. When the network between the charging pile and the concentrator is poor, the method can greatly improve the tr