CN-122017433-A - Interoperability test method, device, intelligent load connector and system for charging pile

CN122017433ACN 122017433 ACN122017433 ACN 122017433ACN-122017433-A

Abstract

The application provides an interoperability test method, device, intelligent load connector and system of a charging pile, which are used for collecting real-time monitoring data and test data of the interoperability test of the charging pile and an electric automobile; the method comprises the steps of determining entity nodes of the charging pile according to real-time monitoring data, wherein the entity nodes comprise protocol versions, fault types, testing conditions and environmental factors, constructing an interoperability fault cause and effect knowledge graph of the charging pile according to the entity nodes of the charging pile, determining abnormal events of the charging pile according to the testing data, wherein the abnormal events comprise communication signal abnormal events and electrical parameter abnormal events, carrying out reverse causal chain reasoning according to the abnormal events and the interoperability fault cause and effect knowledge graph, determining interoperability fault reasons of the charging pile, completing interoperability testing of the charging pile, realizing full-flow automation of the interoperability testing of the charging pile, and improving testing efficiency and accuracy.

Inventors

YU LIANG
Zeng Qijing
ZOU GUOXIONG
ZHOU FAN
ZHENG QIANG
YU JINTAO
HE SHAOYANG
Zou Shuiqiang
Zeng tuo
ZENG DINGJI
ZHENG XINGYUE
LAI WENSI
HUANG BINGPENG
LI HANG

Assignees

广东电网有限责任公司河源供电局

Dates

Publication Date: 20260512
Application Date: 20260323

Claims (10)

1. The interoperability test method for the charging pile is characterized by being applied to an interoperability test system of the charging pile, wherein the interoperability test system comprises a cloud intelligent operation and maintenance platform and an intelligent load connector, and the method comprises the following steps: collecting real-time monitoring data and test data of the interoperability test of the charging pile and the electric automobile; Determining an entity node of the charging pile according to the real-time monitoring data, wherein the entity node comprises a protocol version, a fault type, a test condition and environmental factors; Constructing an interoperability fault causal knowledge graph of the charging pile according to the entity node of the charging pile; Determining abnormal events of the charging pile according to the test data, wherein the abnormal events comprise communication signal abnormal events and electrical parameter abnormal events; And carrying out reverse causal chain reasoning according to the abnormal event and the interoperability fault causal knowledge graph, determining the interoperability fault cause of the charging pile, and completing the interoperability test of the charging pile.
2. The interoperability testing method of claim 1, wherein constructing an interoperability failure causal knowledge graph of the charging stake from the entity nodes of the charging stake includes: identifying and constructing a relation set among the entity nodes according to the entity nodes of the charging pile, wherein the relation set comprises a causal relation, an attribute relation, an association relation and a time sequence relation; And constructing an interoperability fault causal knowledge graph of the charging pile according to the entity nodes of the charging pile and the relation set.
3. The interoperability test method according to claim 1, wherein determining the cause of the interoperability failure of the charging stake based on the anomaly event and the interoperability failure cause and effect knowledge graph and performing a reverse causal link reasoning includes: Mapping the abnormal event into a target entity node of the interoperability fault cause and effect knowledge graph; Based on the target entity node, backtracking the causal relationship in the interoperability fault causal knowledge graph, and determining the occurrence probability of each causal relationship; and determining the interoperability fault reason of the charging pile according to the occurrence probability of each causal relation.
4. A method of testing interoperability according to any one of claims 1 to 3, wherein prior to collecting real time monitoring data and test data for interoperability testing of the charging post with the electric vehicle, the method further comprises: Collecting operation environment data of the charging pile based on the load connector; simulating the load demands of the electric automobile in different charging stages, and generating dynamic load test data; simulating a charging process of the charging pile to generate key parameters of the charging pile, wherein the key parameters of the charging pile comprise a voltage signal, a current signal and a PWM signal; And carrying out fusion processing on the running environment data, the dynamic load test data and the key parameters of the charging pile to generate test data.
5. A method according to any one of claims 1 to 3, wherein, based on the anomaly event and the interoperability fault cause and effect knowledge graph, performing a reverse causal chain reasoning, determining the cause of the interoperability fault of the charging stake, and after completion of the interoperability test of the charging stake, the method further comprises: according to the interoperability fault reasons of the charging piles, determining operation and maintenance data of the charging piles; updating the causal relationship in the interoperability fault causal knowledge graph according to the operation and maintenance data of the charging pile to obtain an updating relationship set; and generating an optimized test scheme for the charging pile according to the updated relation set, and completing test optimization for the charging pile.
6. A method according to any one of claims 1 to 3, wherein, based on the anomaly event and the interoperability fault cause and effect knowledge graph, performing a reverse causal chain reasoning, determining the cause of the interoperability fault of the charging stake, and after completion of the interoperability test of the charging stake, the method further comprises: Acquiring updated test data, operation and maintenance feedback and updated charging protocol standards of the interoperability test of the charging pile and the electric automobile; And updating the interoperability fault cause and effect knowledge graph based on the updated test data, the operation and maintenance feedback and the updated charging protocol standard.
7. An interoperability testing device for a charging pile, comprising: The data acquisition module is used for acquiring real-time monitoring data and test data of the interoperability test of the charging pile and the electric automobile; the entity node determining module is used for determining entity nodes of the charging pile according to the real-time monitoring data, wherein the entity nodes comprise protocol versions, fault types, testing conditions and environmental factors; The interoperability fault causal knowledge graph construction module is used for constructing an interoperability fault causal knowledge graph of the charging pile according to the entity node of the charging pile; the abnormal event determining module is used for determining abnormal events of the charging pile according to the test data, wherein the abnormal events comprise communication signal abnormal events and electrical parameter abnormal events; And the causal diagnosis module is used for carrying out reverse causal chain reasoning according to the abnormal event and the interoperability fault causal knowledge graph, determining the interoperability fault cause of the charging pile and completing the interoperability test of the charging pile.
8. An intelligent load connector, comprising: The bidirectional connection structure is used for connecting the tested charging pile and the test load; the embedded interoperability test module is used for executing charging protocol analysis and verification; An intelligent load connector housing for accommodating the bi-directional connection structure and the embedded interoperability test module; and the diagnosis unit is used for monitoring the key parameters in real time and performing data interaction.
9. The smart load connector of claim 8, wherein a handle is provided on top of the smart load connector housing; A touch display screen is arranged at the top of the front side of the intelligent load connector shell; The front side bottom of the intelligent load connector shell is provided with a heat dissipation hole.
10. The interoperability test system of the charging pile is characterized by comprising a cloud intelligent operation and maintenance platform, an intelligent load connector and a computer program; The smart load connector of any one of claims 8-9; the computer program for performing the method of any of claims 1-7.

Description

Interoperability test method, device, intelligent load connector and system for charging pile Technical Field The application relates to the technical field of electric automobile charging, in particular to a method and a device for testing interoperability of a charging pile, an intelligent load connector and a system. Background The charging pile is used as core equipment for supplying energy to the electric automobile, and the interoperability between the charging pile and various electric automobiles directly determines the stability and safety of the charging experience of the user. In the research and development, production and deployment processes of the charging pile, the interoperability of the charging pile needs to be strictly tested so as to ensure that the charging pile can be compatible with charging protocols, electrical characteristics and communication requirements of different vehicle types. In the prior art, the interoperability test of the charging pile is mainly used for simulating the interoperability performance under a real scene through the charging interaction between an actual vehicle and the charging pile, or a special test platform is adopted for simulating the charging requirement of an electric vehicle, so that the interoperability test of the charging pile is finished. However, the above test procedure requires manual intervention operation, which affects the accuracy and consistency of the test result and reduces the overall test efficiency. Disclosure of Invention The application provides an interoperability test method, device and system for a charging pile, and an intelligent load connector, which are used for improving the accuracy and efficiency of the interoperability test between the charging pile and an electric automobile. In a first aspect, the present application provides an interoperability testing method for a charging pile, applied to an interoperability testing system for a charging pile, where the interoperability testing system includes a cloud intelligent operation and maintenance platform and an intelligent load connector, the method includes: collecting real-time monitoring data and test data of the interoperability test of the charging pile and the electric automobile; Determining an entity node of the charging pile according to the real-time monitoring data, wherein the entity node comprises a protocol version, a fault type, a test condition and environmental factors; Constructing an interoperability fault causal knowledge graph of the charging pile according to the entity node of the charging pile; Determining abnormal events of the charging pile according to the test data, wherein the abnormal events comprise communication signal abnormal events and electrical parameter abnormal events; And carrying out reverse causal chain reasoning according to the abnormal event and the interoperability fault causal knowledge graph, determining the interoperability fault cause of the charging pile, and completing the interoperability test of the charging pile. Further, constructing an interoperability fault causal knowledge graph of the charging pile according to the entity node of the charging pile, including: identifying and constructing a relation set among the entity nodes according to the entity nodes of the charging pile, wherein the relation set comprises a causal relation, an attribute relation, an association relation and a time sequence relation; And constructing an interoperability fault causal knowledge graph of the charging pile according to the entity nodes of the charging pile and the relation set. Further, according to the abnormal event and the interoperability fault cause and effect knowledge graph, performing a reverse cause and effect chain reasoning to determine an interoperability fault cause of the charging pile, including: Mapping the abnormal event into a target entity node of the interoperability fault cause and effect knowledge graph; Based on the target entity node, backtracking the causal relationship in the interoperability fault causal knowledge graph, and determining the occurrence probability of each causal relationship; and determining the interoperability fault reason of the charging pile according to the occurrence probability of each causal relation. Further, before collecting real-time monitoring data and test data of the interoperability test of the charging pile and the electric automobile, the method further comprises: Collecting operation environment data of the charging pile based on the load connector; simulating the load demands of the electric automobile in different charging stages, and generating dynamic load test data; simulating a charging process of the charging pile to generate key parameters of the charging pile, wherein the key parameters of the charging pile comprise a voltage signal, a current signal and a PWM signal; And carrying out fusion processing on the running environment data, the dynamic load test da