CN220773454U - CAN signal generation device - Google Patents
CAN signal generation device Download PDFInfo
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- CN220773454U CN220773454U CN202322098966.0U CN202322098966U CN220773454U CN 220773454 U CN220773454 U CN 220773454U CN 202322098966 U CN202322098966 U CN 202322098966U CN 220773454 U CN220773454 U CN 220773454U
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 title description 2
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a CAN signal generating device, which comprises a CAN data receiving and transmitting unit, a control calculation unit, an RS232 interface unit and a button unit. The RS232 interface unit is used for communicating with the upper computer and downloading the configuration file to the control calculation unit. The button unit is used for collecting control signal input of a user. The control calculation unit receives the signals of the button unit, and after logic operation, controls the CAN data receiving and transmitting unit to transmit specific CAN data signals to the target test object. The device can realize independent operation in the test bench without depending on an upper computer (PC) during test operation. The method has the advantages of low cost, small space, simple and convenient operation, convenient user definition of CAN message data content and the like, thereby being widely applied to test scenes of various automobile controllers.
Description
Technical Field
The utility model relates to the field of automobile electronics, in particular to a CAN signal generating device.
Background
The automobile controller (ECU) mainly uses CAN communication as a main part, and needs to perform sufficient functional verification test in the research and development design process, and a CAN signal generating device is usually adopted to simulate the CAN communication test with the automobile controller in the actual research and development process. The existing CAN signal generating device is usually connected with an upper computer (PC), and the modification and the triggering of the transmission of CAN data are operated on the upper computer, so that the problems of inconvenient operation, large occupied space and high cost exist.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a CAN signal generating device which CAN independently run in a test bench without depending on an upper computer (PC) during test operation and CAN be applied to test scenes of various automobile controllers.
The CAN signal generating device is characterized by comprising a CAN data receiving and transmitting unit, a control calculation unit, an RS232 interface unit and a button unit; the RS232 interface unit is used for communicating with the upper computer and downloading the configuration file to the control calculation unit; the configuration file comprises CAN interface communication parameters and a CAN data frame list to be sent; the button unit is used for collecting control instruction input of a user; the control calculation unit receives the signals of the button unit, performs logic operation, and then controls the CAN data receiving and transmitting unit to transmit CAN data frames.
The CAN signal generating device is characterized in that the content of the CAN data frame sent by each button CAN be adjusted by modifying the configuration file.
The CAN signal generating device is characterized in that the CAN data receiving and transmitting unit supports CAN data frames and CAN FD data frames and CAN be connected with a plurality of automobile controllers through a CAN bus.
The CAN signal generating device is characterized in that the button unit comprises two types of buttons, namely a knob and a poking button; different gears of the knob correspond to different CAN data control instructions, and different gears of the poking knob correspond to different automobile controllers; the button unit collects the state of the button and converts the state into a signal to be transmitted to the control computing unit.
The CAN signal generating device is characterized in that the RS232 interface unit is used for communication connection between an upper computer and the device, so as to realize configuration file downloading and debugging of the device; during test operation, the RS232 interface unit can be disconnected with the upper computer.
The embodiment of the utility model has the beneficial effects that the device can independently run in the test bench without depending on an upper computer (PC) during test work; the method has the advantages of low cost, small space, simple and convenient operation, convenient user definition of CAN message data content and the like, thereby being widely applied to test scenes of various automobile controllers.
Drawings
Fig. 1 is a block diagram of the structure of the present utility model.
Fig. 2 is a flow chart of the operation of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, an embodiment of the present utility model provides a CAN signal generating device, which is characterized by comprising a CAN data transceiver unit, a control computing unit, an RS232 interface unit and a button unit. The RS232 interface unit is used for communicating with the upper computer and downloading the configuration file to the control calculation unit. The button unit is used for collecting control instruction input of a user, and the control calculation unit receives signals of the button unit, carries out logic operation and then controls the CAN data receiving and transmitting unit to transmit specific CAN data frames.
As shown in fig. 2, the specific workflow of an example of the present utility model is as follows:
step S1, in the preparation stage before testing, the RS232 interface unit is connected with an upper computer, and a user downloads a configuration file to the device through the upper computer. The configuration file is a program file and comprises a plurality of self-defined CAN data packets, and the corresponding relation between the CAN data and each button is defined.
And step S2, in the test working stage, the RS232 interface unit is disconnected with the upper computer, and then the CAN data receiving and transmitting unit is connected with a plurality of automobile controllers through a CAN bus.
And S3, a user operates a toggle button of the button unit to select a target automobile controller.
And S4, a user operates a knob button of the button unit to select a message to be sent.
And S5, the control calculation unit searches a CAN data frame list to be transmitted in the configuration file according to the signal of the button unit, generates a corresponding CAN data message, and controls the CAN data receiving and transmitting unit to transmit the CAN data signal to the target automobile controller.
The embodiment of the utility model has the following beneficial effects: the test bench can be independently operated in the test bench without depending on a host computer (PC) during test operation. The method has the advantages of low cost, small space, simple and convenient operation, convenient user definition of CAN message data content and the like.
While the embodiments of the present utility model have been described in detail, the present utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (5)
1. The CAN signal generating device is characterized by comprising a CAN data receiving and transmitting unit, a control calculation unit, an RS232 interface unit and a button unit; the RS232 interface unit is used for communicating with the upper computer and downloading the configuration file to the control calculation unit; the configuration file comprises CAN interface communication parameters and a CAN data frame list to be sent; the button unit is used for collecting control signal input of a user; and the control calculation unit receives the signals of the button unit, searches a CAN data frame list to be sent in the configuration file after logic operation, and controls the CAN data receiving and sending unit to send CAN data frames to the target automobile controller.
2. The CAN signal generating device of claim 1 wherein the content of the CAN data frame transmitted by each button is adjustable by modifying the configuration file.
3. The CAN signal generating device according to claim 1, wherein the CAN data transceiver unit supports CAN data frames and CAN FD data frames, and is connectable to a plurality of car controllers through a CAN bus.
4. The CAN signal generating device according to claim 1, wherein the button unit includes two types of buttons, a knob and a toggle, for a user to input a control signal; different gears of the knob correspond to different CAN data control instructions, and different gears of the dial knob correspond to different target automobile controllers; the button unit collects the state of the button and converts the state into a signal to be transmitted to the control computing unit.
5. The CAN signal generating device of claim 1, wherein the RS232 interface unit is configured to implement a configuration file download and a debug of the device by using a communication connection between the host computer and the device; during test operation, the RS232 interface unit can be disconnected with the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322098966.0U CN220773454U (en) | 2023-08-07 | 2023-08-07 | CAN signal generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322098966.0U CN220773454U (en) | 2023-08-07 | 2023-08-07 | CAN signal generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220773454U true CN220773454U (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322098966.0U Active CN220773454U (en) | 2023-08-07 | 2023-08-07 | CAN signal generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220773454U (en) |
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2023
- 2023-08-07 CN CN202322098966.0U patent/CN220773454U/en active Active
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