CN202931347U - VANBus bus analytical device - Google Patents
VANBus bus analytical device Download PDFInfo
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- CN202931347U CN202931347U CN 201220524901 CN201220524901U CN202931347U CN 202931347 U CN202931347 U CN 202931347U CN 201220524901 CN201220524901 CN 201220524901 CN 201220524901 U CN201220524901 U CN 201220524901U CN 202931347 U CN202931347 U CN 202931347U
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Abstract
The utility model discloses a VANBus bus analytical device, which is characterized by comprising a difference driving part, a MCU decoding part, a serial port driving part, and a display and data processing part, the difference driving part is composed of a difference driving chip and a probe; the MCU decoding part is a bus decoding part composed of a minisize processor and its peripheral circuit; the serial port driving part is composed of a RS232 serial port driving chip and a RS232 data line; the display and data processing part is composed of a data processing application program of a display and data processing terminal, the display and data processing part receives various data uploaded by the serial port driving part, and the bus data can be displayed through processing by software. The VANBus bus analytical device can be used for various occasions for analyzing and testing the VANBus bus, the bus waveform is conversed to a visual digit display, the data and sequence of intercommunication can be directly observed, various analysis and processing processes can be carried out on the bus data, and the VANBus bus analytical device has good popularization value.
Description
Technical field
The utility model relates to the automobile bus technical field, especially relates to a kind of instrument that automobile bus is analyzed and tested.
Background technology
Along with the automotive electronics degree is more and more higher, between each equipment of automobile, information interaction is more frequent, and the automobile bus utilization is also more and more extensive.VANBus be a kind of in the series automobiles such as the beautiful and Citreen of France widely used bus, it is the local bus of a plurality of units such as connecting sound equipment system, air-conditioning system, rear row control.Need to analyze and test the VANBus bus at too many levels such as unit research and development, system debug, detections.But the Bus analyzer of VANBus is not supported in the market at present, when needs are analyzed the VANBus bus, generally to observe waveform by oscilloscope or logic analyzer, the method can only be seen waveform, can't observe the communicating pair data, make debugging very not directly perceived, also can't analyze data problem.
Summary of the invention
The purpose of this utility model is exactly provide for the deficiency that solves prior art a kind of simple in structure, easy to use, and the VANBus bus analysis device of stable performance.
The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of VANBus bus analysis device, it is characterized in that, it comprises differential driving part, MCU decoded portion, serial port drive part and demonstration and data processing section, differential driving is partly to be made of differential driving chip and probe, probe is accessed any point in bus network, get final product the waveform signal in the data acquisition bus network, drive chip and the original waveform signal is converted to the signal that is fit to decoding, be transferred to the decoding chip of MCU decoded portion; The MCU decoded portion is the bus encoding/decoding part that is made of microprocessor (MCU) and peripheral circuit thereof, by to the MCU module programming, the bus signals that first can be collected is decoded, the bus waveform is converted to character by protocol definition, simultaneously, the bus data of resolving is reduced into Frame, and adds numbering and timestamp, carry out data with convenient demonstration and data processing section and process; And can be to bus waveform integrality, reply, the aspects such as CRC check, error in data carry out intellectual analysis, and character content and various analysis result after conversion are passed to the serial port drive part together; The serial port drive part is comprised of RS232 serial port drive chip and RS232 data wire, this part the character content of MCU decoded portion and various analysis result convert to can remote transmission the RS232 signal of telecommunication, and be sent to and show and data processing section; Show and data processing section, be comprised of data process application on demonstration and data processing terminal, demonstration and data processing section receive the various data that serial port drive is partly uploaded, and after processing by software, bus data are shown intuitively.
As further illustrating of such scheme, between serial port drive part and demonstration and data processing section, the employing of data transfer mode is serial ports, USB or wireless communication mode, also can transfer data to PDA and other portable equipments.
Described demonstration and data processing section adopt an embedded display platform, realize that need not PC can directly carry out bus analysis and demonstration, and increase and decrease key-press input or touch-screen input are with the various bus analysis projects of handled easily.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
The utility model utilizes the powerful data of PC hardware to process and storage capacity, can make this device analysis ability more intelligent by writing the various analyses of software extensions and disposal ability, uses convenient.But various practical functions are listed below:
1. Frame is carried out sequencing display according to numbering and timestamp etc., can not only see in real time the data content of bus communication, before or after can also observing any time the bus content of communicating by letter.
2. the bus analysis result of decoded portion shown, and give different demonstrations to data check errors, data are imperfect etc., distinguish different mistakes with convenient.
3. data are further identified, the special data in Frame (as the address, control command etc.) is identified with different colours, conveniently to check and to analyze agreement.
4. will collect communication data and preserve, can arbitrary period or the Content of Communication of arbitrary number, convenient test and investigation problem.
5. can filter data addresses, control command etc., only show the data content after filtering.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is another execution mode schematic diagram of the present utility model;
Fig. 4 is another execution mode schematic diagram of the present utility model.
Description of reference numerals: 1, differential driving part 2, MCU decoded portion 3, serial port drive part 4, demonstration and data processing section 5, PDA and other portable equipments 6, display platform.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of VANBus bus analysis of the utility model device, it comprises differential driving part 1, MCU decoded portion 2, serial port drive part 3 and demonstration and data processing section 4 these four parts.First: differential driving part, be to be consisted of by differential driving chip and probe, probe is accessed any point in bus network, get final product the waveform signal in the data acquisition bus network, drive chip and the original waveform signal is converted to the signal that is fit to decoding, be transferred to the second portion decoding chip.
Second portion: MCU decoded portion, it is the bus encoding/decoding part that is consisted of by microprocessor (MCU) and other peripheral circuits, by to the MCU module programming, the bus signals that first can be collected is decoded, the bus waveform is converted to character by protocol definition, simultaneously, the bus data of resolving is reduced into Frame, and add numbering and timestamp etc., so that conveniently demonstration and data processing section carry out the data processing; And can be to bus waveform integrality, reply, the aspects such as CRC check, error in data carry out intellectual analysis, and character content and various analysis result after conversion are passed to the serial port drive part together.
Third part: the serial port drive part is comprised of RS232 serial port drive chip and RS232 data wire.This part the character content of second portion and various analysis results etc. convert to can remote transmission the RS232 signal of telecommunication, and be sent to the PC end.
The 4th part: show and data processing section, formed by the upper data process application of PC.The PC end receives by serial ports the various data that third part is uploaded, and after processing by software, bus data can be shown intuitively.In this device, utilize the powerful data of PC hardware to process and storage capacity, can make this device analysis ability more intelligent by writing the various analyses of software extensions and disposal ability, use convenient.
Except data flow shown in Figure 1, this device can also carry out playback to data, as Fig. 2, the digital simulation of preserving is sent on bus, can simulate the bus communication environment of institute's save data, and its data flow is as shown in figure two.The PC end sends to second portion MCU with the data of preserving by serial ports, and MCU becomes the data encoding of receiving the data format of VANBus bus, and its waveform is converted to the VANBus waveform by drive part, with the bus data environment of realizing that simulation is original.
As shown in Figure 3, the difference of the present embodiment and above-mentioned execution mode is, between described serial port drive part and demonstration and data processing section, the data transfer mode adopts USB or wireless communication mode, also can transfer data to PDA and other portable equipments 5.This device is added LCDs, can be applied on the vehicle that uses the VANBus bus real-time vehicle information such as the outer temperature of distance travelled, travel speed, engine speed, real-time fuel consumption, water tank water temperature, vehicle door status, car of real-time report and demonstration vehicle, car light state.
Embodiment 3
As shown in Figure 3, the difference of the present embodiment and above-mentioned execution mode is, in this programme, demonstration and data processing section replace with an embedded display platform 6, PC can be realized need not and bus analysis and demonstration can be directly carried out, increase and decrease key-press input or touch-screen input facilitate on-the-spot test and analysis.
Above-described is only preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (1)
1. VANBus bus analysis device, it is characterized in that, it comprises differential driving part, MCU decoded portion, serial port drive part and demonstration and data processing section, differential driving is partly to be made of differential driving chip and probe, waveform signal in probe access bus network data acquisition bus network, drive chip and the original waveform signal is converted to the signal that is fit to decoding, be transferred to the decoding chip of MCU decoded portion; The MCU decoded portion is the bus encoding/decoding part that is made of microprocessor and peripheral circuit thereof, the bus signals that first can be collected is decoded, the bus waveform is converted to character by protocol definition, simultaneously, the bus data of resolving is reduced into Frame, and add numbering and timestamp, the bus waveform is carried out intellectual analysis, and character content and various analysis result after conversion are passed to the serial port drive part together; The serial port drive part is comprised of RS232 serial port drive chip and RS232 data wire, the character content of MCU decoded portion and various analysis result convert to can remote transmission the RS232 signal of telecommunication, and be sent to and show and data processing section; Show and data processing section, by showing and the data process application of data processing terminal forms, demonstration and data processing section receive the various data that serial port drive is partly uploaded.
2
.A kind of VANBus bus analysis device according to claim 1, it is characterized in that, between serial port drive part and demonstration and data processing section, the employing of data transfer mode is serial ports, USB or wireless communication mode, also can transfer data to PDA and other portable equipments.
3
.A kind of VANBus bus analysis device according to claim 1 is characterized in that, described demonstration and data processing section adopt an embedded display platform, sets up in fact the input of key-press input or touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524901 CN202931347U (en) | 2012-10-15 | 2012-10-15 | VANBus bus analytical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524901 CN202931347U (en) | 2012-10-15 | 2012-10-15 | VANBus bus analytical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931347U true CN202931347U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524901 Expired - Lifetime CN202931347U (en) | 2012-10-15 | 2012-10-15 | VANBus bus analytical device |
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| Country | Link |
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| CN (1) | CN202931347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646723A (en) * | 2018-06-27 | 2020-01-03 | 龙芯中科技术有限公司 | Bus interface test circuit and method |
-
2012
- 2012-10-15 CN CN 201220524901 patent/CN202931347U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646723A (en) * | 2018-06-27 | 2020-01-03 | 龙芯中科技术有限公司 | Bus interface test circuit and method |
| CN110646723B (en) * | 2018-06-27 | 2021-11-30 | 龙芯中科技术股份有限公司 | Bus interface test circuit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170804 Address after: 528100, Guangdong District, Foshan Sanshui science and Technology Industrial Zone Southwest Park C zone 25-8 (F1) five, 501 Patentee after: GUANGDONG COAGENT GLOBAL S&T CO.,LTD. Address before: 528133 C District, Southwest Industrial Park, Sanshui District, Guangdong, Foshan Patentee before: Guangdong Coagent Electronics S&T Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528100 No. 25-8 (F1) five, 501, C, southwest garden, Sanshui center, Foshan, Guangdong. Patentee after: Faurecia electronic (Foshan) Co.,Ltd. Address before: 528100 No. 25-8 (F1) five, 501, C, southwest garden, Sanshui center, Foshan, Guangdong. Patentee before: GUANGDONG COAGENT GLOBAL S&T CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |