Controller Area Network
E1029497
Controller Area Network is a robust serial communication protocol widely used in automotive and industrial systems to enable reliable, real-time data exchange between electronic control units without a central host computer.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Controller Area Network canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T13241674 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Controller Area Network Context triple: [CAN bus, fullName, Controller Area Network]
-
A.
CAN
CAN is the three-letter IATA airport code for Guangzhou Baiyun International Airport, a major air transport hub in southern China.
-
B.
CAN
CAN is the standard international abbreviation for the Canada men's national ice hockey team, one of the most successful and historically dominant teams in world ice hockey.
-
C.
CAN
CAN is the FIFA country code for Canada, the North American nation whose teams and players participate in international soccer competitions.
-
D.
CAN
CAN is a South American regional integration organization that promotes economic and social cooperation among its member countries, including Bolivia, Colombia, Ecuador, and Peru.
-
E.
CAN
CAN is a prominent umbrella organization representing and coordinating various Christian denominations and churches across Nigeria.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Controller Area Network Target entity description: Controller Area Network is a robust serial communication protocol widely used in automotive and industrial systems to enable reliable, real-time data exchange between electronic control units without a central host computer.
-
A.
CAN
CAN is the three-letter IATA airport code for Guangzhou Baiyun International Airport, a major air transport hub in southern China.
-
B.
CAN
CAN is the standard international abbreviation for the Canada men's national ice hockey team, one of the most successful and historically dominant teams in world ice hockey.
-
C.
CAN
CAN is the FIFA country code for Canada, the North American nation whose teams and players participate in international soccer competitions.
-
D.
CAN
CAN is a South American regional integration organization that promotes economic and social cooperation among its member countries, including Bolivia, Colombia, Ecuador, and Peru.
-
E.
CAN
CAN is a prominent umbrella organization representing and coordinating various Christian denominations and churches across Nigeria.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
automotive network technology
ⓘ
fieldbus ⓘ serial communication protocol ⓘ |
| abbreviation | CAN ⓘ |
| arbitrationMethod |
CSMA/CR
ⓘ
linked to:
CSMA
|
| arbitrationMethodExpanded | carrier sense multiple access with collision resolution ⓘ |
| designedFor | operation without central host computer ⓘ |
| developedBy |
Robert Bosch GmbH
ⓘ
linked to:
Bosch
|
| developmentStartYear | 1983 ⓘ |
| errorDetectionMethods |
acknowledgement check
ⓘ
bit stuffing ⓘ cyclic redundancy check ⓘ frame check ⓘ |
| firstPublicationYear | 1986 ⓘ |
| frameTypes |
data frame
ⓘ
error frame ⓘ overload frame ⓘ remote frame ⓘ |
| hasVariant |
CAN FD
ⓘ
linked to:
CAN bus
CANopen ⓘ DeviceNet ⓘ J1939 ⓘ |
| identifierLength |
11-bit base frame format
ⓘ
29-bit extended frame format ⓘ |
| layerInOSIModel |
data link layer
ⓘ
physical layer ⓘ |
| logicalLinkLayerSpecifiedBy | ISO 11898-1 ⓘ |
| lowSpeedFaultTolerantSpecifiedBy | ISO 11898-3 ⓘ |
| maxBitRate | 1 Mbit/s ⓘ |
| messageAddressing | message-based addressing ⓘ |
| not | node-address based protocol ⓘ |
| physicalLayerSpecifiedBy | ISO 11898-2 ⓘ |
| physicalMedium | twisted pair cable ⓘ |
| primaryPurpose | communication between electronic control units ⓘ |
| standardizedAs |
ISO 11898
ⓘ
linked to:
CAN bus
|
| supports |
arbitration on message priority
ⓘ
broadcast communication ⓘ error confinement ⓘ error detection ⓘ fault confinement ⓘ message prioritization ⓘ multi-master communication ⓘ real-time data exchange ⓘ |
| topology | bus topology ⓘ |
| typicalBitRate |
125 kbit/s
ⓘ
250 kbit/s ⓘ 500 kbit/s ⓘ |
| usedIn |
aerospace systems
ⓘ
agricultural machinery ⓘ automotive systems ⓘ building automation ⓘ industrial automation ⓘ medical equipment ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Controller Area Network Description of subject: Controller Area Network is a robust serial communication protocol widely used in automotive and industrial systems to enable reliable, real-time data exchange between electronic control units without a central host computer.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.