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Method and device for analyzing can signal
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A signal and local area technology, applied in the field of control, can solve problems such as low analysis efficiency, unintuitive data, and long time-consuming
Active Publication Date: 2017-07-21
SHENGRUI TRANSMISSION
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[0004] However, in the current technology, the traced CAN signal data is directly analyzed by the CAN analysis engineer in a hexadecimal number sequence. Because the data is not intuitive enough, the CAN analysis engineer needs to complete the above-mentioned multiple items during the analysis process. Work, it takes a long time, and the efficiency of analysis is relatively low
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Embodiment 1
[0050] see figure 1 , figure 1 It is a flowchart of a CAN (Controller Area Network, Controller Area Network) signal analysis method provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes:
[0051] Step S101, acquiring the CAN signal of the vehicle controller area network;
[0052] Specifically, the vehicle controller area network CAN signal is obtained through a USB (Universal Serial Bus, universal serial bus)-controller area network CAN adapter. The controller area network CAN signal includes addresses of all data frames.
[0053] Step S102, controlling the display screen to display the addresses of all the data frames;
[0054] Specifically, the display screen is controlled to display addresses of all data frames in a first preset area.
[0055] Step S103, obtaining the address of a certain data frame input by the user, and extracting data corresponding to the address of the certain data frame;
[0056] Specifically, the add...
Embodiment 2
[0066] see figure 2 , figure 2 It is a flow chart of another CAN signal analysis method provided by the embodiment of the present invention. Such as figure 2 As shown, the method includes:
[0067] Step S201, acquiring the vehicle controller area network CAN signal; the controller area network CAN signal includes addresses of all data frames;
[0068] Step S202, controlling the display screen to display the addresses of all the data frames;
[0069] Step S203, obtaining the address of a certain data frame input by the user, and extracting data corresponding to the address of the certain data frame;
[0070] Step S204, converting the data into a Boolean quantity, and controlling the display screen to display the Boolean quantity in the form of an indicator light; the number of the indicator lights is 64, corresponding to 64 bits of a data frame;
[0071] Step S205, obtaining several consecutive bits of data in the certain data frame input by the user, and converting the...
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Abstract
The invention discloses a CAN signalanalysis method and device. The method includes: obtaining the CAN signal of the whole vehicle; the CAN signal includes the addresses of all data frames; controlling the display screen to display the addresses of all the data frames; obtaining the address of a certain data frame input by the user, extracting the address related to the certain data frame; Data corresponding to the address of a data frame; convert the data into a Boolean quantity, control the display screen to display the Boolean quantity in the form of an indicator light; obtain the consecutive digits in a certain data frame input by the user Data, convert the continuous several digits of data into decimal physical quantity data; modify the physical quantity data through the factor value and compensation value, and display the corrected physical quantity data in the form of a curve on the coordinate axis diagram of the display screen middle. By adopting the technical solution provided by the invention, the time spent by CAN analysis engineers on analyzing the CAN signals of the whole vehicle can be reduced, and the analysis efficiency can be improved.
Description
technical field [0001] The invention relates to the technical field of control, in particular to a CAN (Controller Area Network, Controller Area Network) signal analysis method and device. Background technique [0002] CAN (Controller Area Network, Controller Area Network) is one of the most widely used field buses. It serves as a micro-control communication in the automotive environment, exchanging information between the various ECUs (Electric Control Unit, Electronic Control Unit) in the vehicle, forming In the automotive electronic control network, CAN has almost become the most commonly used technical means in the field of automotive design. [0003] The analysis of the CAN signal of the whole vehicle is a necessary process to detect whether the components of the whole vehicle are working normally. In the current technology, for different vehicle CAN signals of different models, after connecting the CAN reading device, it is necessary to manually check the CAN tracking...
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