MDF 파일

MDF 파일 시작하기

이 예제는 MDF 파일과 그 내용에 대한 정보에 액세스하는 방법을 보여줍니다.

MDF 파일에서 데이터 읽기

MDF 파일에서 채널 데이터를 읽습니다.

Read Physical and Raw Data from MDF Files

Read channel data from an MDF file as physical values and raw values.

Work with Unfinalized and Unsorted MDF Files

Work with unfinalized and unsorted MDF files. The unfinalized MDF file used in this example, MDFUnfinalized.MF4, was recorded by a CANedge2 CAN bus data logger from CSS Electronics.

Get Started with Writing Timetable Data to MDF Files

Customize Metadata When Writing Timetable Data to MDF Files

Customize the file, channel group, and channel metadata when writing timetable data to an MDF file.

Overwrite Channel Group Data in an MDF File

Write Channel Group Data from an Existing MDF File to a New MDF File

Work with MDF Attachment Files

Import and Decode LIN Data in MDF Files

Decode and Write CAN Data in MDF Files

Import and decode CAN data from an MDF file in MATLAB^® for analysis, and write the decoded data back to the same file.

Decode J1939 Data from MDF Files

Import and decode J1939 data from MDF files in MATLAB® for analysis. The MDF file used in this example was generated from Vector CANoe using the "System Configuration (J1939)" sample. This example also uses the CAN database file, Powertrain_J1939_MDF.dbc, provided with the Vector sample configuration.

Get Started with MDF Datastore

Use the MDF datastore feature of Vehicle Network Toolbox™ to quickly and efficiently process a data set spread across a collection of multiple MDF files. This workflow is also valuable when there are too much data to fit into available memory.

Analyze Data Using MDF Datastore and Tall Arrays

Work with a big data set using tall arrays and the MDF datastore feature. Tall arrays are commonly used to perform calculations on different types of data that do not fit in memory.

Data Analytics Application with Many MDF Files

Investigate vehicle battery power during discharge mode across various drive cycles. The data for this analysis are contained in a set of vehicle log files in MDF format. For this example, we need to build up a mechanism that can "detect" when the vehicle battery is in a given mode. What we are really doing is building a detector to determine when a signal of interest (battery power in this case) meets specific criteria. When the criteria is met, we will call that an "event". Each event will be subsequently "qualified" by imposing time bounds. That is to say an event is "qualified" if it persists for at least 5 seconds (such a qualification step can help limit noise and remove transients). The thresholds shown in this example are illustrative only.

Map Channels from MDF Files to Simulink Model Input Ports

Programmatically map channels from MDF files and consume their data via input ports of a Simulink® model. It performs the gathering of input port names of a Simulink model and correlates them to the content of a given MDF file. A linkage between them is then created which consumes channel data sourced from the MDF file when the model runs.

Read Validity Data from MDF Files

Work with MDF Events