Method and system for diagnosing vehicle faults using a knowledge graph
AssigneeCAROTA Technology Corporation
InventorXinjie ZHANG
Life of this patent
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Abstract
The disclosure provides a method and system for diagnosing vehicle faults using a knowledge graph. A fault snapshot image can be generated when a fault monitoring module of a vehicle terminal detects a vehicle fault. A cloud server can parse from the fault snapshot image a vehicle information and perform a progressive fault diagnosis in a fault knowledge graph at the cloud server using the vehicle information to determine a target repair suggestion node.
Claims17
A method for diagnosing vehicle faults using a knowledge graph, the method comprising:
- (a) generating a fault snapshot image when a fault monitoring module of a vehicle terminal detects a vehicle fault;
- (b) transmitting the fault snapshot image from the vehicle terminal to a cloud server;
- (c) parsing a vehicle information at the cloud server from the fault snapshot image, and performing a progressive fault diagnosis in a fault knowledge graph stored at the cloud server based on the vehicle information to determine a target repair suggestion node;
- and
- (d) transmitting from the cloud server an information of the target repair suggestion node as a diagnostic information to the vehicle terminal,
- wherein the fault knowledge graph comprises abnormal signal nodes, faulty component nodes and repair suggestion nodes,
- wherein the abnormal signal nodes are each associated with one or more faulty component nodes that are related to a generation of the vehicle fault,
- wherein the faulty component nodes are each associated with one or more repair suggestion nodes that provide repair suggestions for the faulty component node, and
- wherein a plurality of the abnormal signal nodes having a mutual influence or co-occurrence relationship on a generation of the vehicle fault are associated with each other.
A system for diagnosing vehicle faults using a knowledge graph, the system comprising:
- a vehicle terminal;
- and
- a cloud server,
- wherein the vehicle terminal comprises:
- a fault monitoring module configured to generate a fault snapshot image in the event of a vehicle fault;
- and
- a fault transmitting module configured to transmit the fault snapshot image to the cloud server,
- wherein the cloud server comprises:
- a fault knowledge graph;
- a fault snapshot receiving module;
- and
- a fault diagnosis module,
- wherein the fault knowledge graph comprises abnormal signal nodes, faulty component nodes and repair suggestion nodes, the abnormal signal nodes being each associated with one or more faulty component nodes that are related to a generation of the vehicle fault, the faulty component nodes being each associated with one or more repair suggestion nodes that provide repair suggestions for the faulty component node, and a plurality of the abnormal signal nodes having a mutual influence or co-occurrence relationship on a generation of the vehicle fault being associated with each other,
- wherein the fault snapshot receiving module is configured to receive the fault snapshot image from the vehicle terminal, and
- wherein the fault diagnosis module is configured to parse a vehicle information from the fault snapshot image, perform a progressive fault diagnosis in the fault knowledge graph based on the vehicle information to determine a target repair suggestion node, and transmit an information of the target repair suggestion node as a diagnostic information to the vehicle terminal.
Dependencies are inferred from the claim text.