CN114296423A - Large screen hand-held calibration diagnostic instrument - Google Patents
Large screen hand-held calibration diagnostic instrument Download PDFInfo
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- CN114296423A CN114296423A CN202111422845.6A CN202111422845A CN114296423A CN 114296423 A CN114296423 A CN 114296423A CN 202111422845 A CN202111422845 A CN 202111422845A CN 114296423 A CN114296423 A CN 114296423A
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- 238000004891 communication Methods 0.000 claims abstract description 60
- 230000003993 interaction Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a large-screen handheld calibration diagnostic instrument, which relates to the technical field of automobile detection and comprises a main control MCU circuit, a calibration control circuit and a calibration control circuit, wherein the main control MCU circuit is electrically connected with automobile electronic equipment and is used for diagnosing the running state of the automobile electronic equipment; the USB-to-KLINE circuit is connected between the automobile electronic equipment and the upper computer in series; the USB-CAN circuit is connected between the automobile electronic equipment and the upper computer in series; the KLINE communication circuit is connected between the master control MCU circuit and the automobile electronic equipment in series; the CAN communication circuit is connected between the main control MCU circuit and the automobile electronic equipment in series; this handheld demarcation diagnostic device of large screen is when examining automotive electronics, through reserving multiple communication circuit to can be applicable to multiple motorcycle type, and interface plug socket need not distinguish positive and negative direction, convenient operation.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to a large-screen handheld calibration diagnostic instrument.
Background
The existing automobile calibration diagnostic equipment of the handheld calibration diagnostic instrument is large in size and not easy to carry, single in function and only capable of conducting simple OBD diagnosis through a communication line, some only supports KLINE communication, some only supports CAN communication, and an interface plug and socket are required to distinguish positive and negative directions, so that inconvenience is brought to OBD diagnosis.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the large-screen handheld calibration diagnostic instrument which can carry out various communications, and is convenient to operate, and the interface plug and the interface socket do not need to distinguish the positive direction and the negative direction.
In order to achieve the purpose, the invention is realized by the following technical scheme: the large screen hand-held calibration diagnostic apparatus comprises:
the main control MCU circuit is electrically connected with the automobile electronic equipment and is used for diagnosing the running state of the automobile electronic equipment;
the USB-to-KLINE circuit is connected between the automobile electronic equipment and the upper computer in series;
the USB-CAN circuit is connected between the automobile electronic equipment and the upper computer in series;
the KLINE communication circuit is connected between the master control MCU circuit and the automobile electronic equipment in series;
the CAN communication circuit is connected between the main control MCU circuit and the automobile electronic equipment in series;
still include USB TYPE-C interface circuit, master control MCU circuit respectively with CAN communication circuit KLINE communication circuit and USB TYPE-C interface circuit electricity is connected.
Further, the KLINE communication circuit includes a communication chip UF02, pin terminals TX and RX of the communication chip UF02 are correspondingly connected to pin terminals PA9 and PA10 of the main control MCU circuit UA1, and an ISO terminal of the communication chip UF02 converts a control signal of the main control MCU circuit into a KLINE signal and transmits the KLINE signal to the outside through the ISO terminal.
Further, the upper computer is connected with the USB TYPE-C interface circuit and the USB drive circuit, wherein the USB drive circuit comprises a drive chip UF04, and the D-pin and D + pin ends of the drive chip UF04 are correspondingly connected with the USB D-pin and USB D + pin ends of the USB TYPE-C interface circuit;
the TXD pin ends and the RXD pin ends of the driving chip UF04 are correspondingly connected with the TX pin ends and the RX pin ends of the communication chip UF02, the ISO end of the communication chip UF02 converts the control signal received by the upper computer into a KLINE signal, and sends an instruction to the automobile electronic equipment through the ISO end.
Furthermore, the USB D-, USB D + pin end of the USB TYPE-C interface circuit is correspondingly connected with the PB14 and PB15 pin ends of the main control MCU circuit UA 1.
Further, the CAN communication circuit comprises a control chip UF01, and the TXD and RXD pin terminals of the control chip UF01 receive control signals from the master MCU circuit UA 1.
Further, the terminal of the CANH pin and the terminal of the CANL pin of the control chip UF01 are connected to one end of two coils of the inductor LF01, and the other end of the two coils sends a CAN signal to the automotive electronics device.
Furthermore, the large-screen handheld calibration diagnostic apparatus further comprises a standby TYPE-C interface circuit, wherein CANH, CANL, USB D +, USB D-, and KLINE pin ends of the CON1 are respectively and correspondingly connected with CANH, CANL, USB D +, USB D-, and KLINE pin ends of the USB TYPE-C interface circuit.
Furthermore, the large-screen handheld calibration diagnostic instrument further comprises a display screen circuit and a human-computer interaction circuit, wherein the display screen circuit and the human-computer interaction circuit are both electrically connected with the master control MCU circuit.
Furthermore, the large-screen handheld calibration diagnostic instrument further comprises a storage circuit, and the storage circuit is electrically connected with the main control MCU circuit.
Advantageous effects
The invention provides a large-screen handheld calibration diagnostic apparatus. Compared with the prior art, the method has the following beneficial effects:
this handheld demarcation diagnostic device of large screen is when examining automotive electronics, through reserving multiple communication circuit to can be applicable to multiple motorcycle type, and interface plug socket need not distinguish positive and negative direction, convenient operation.
Drawings
Fig. 1 is a schematic structural diagram of a USB to KLINE circuit and a KLINE communication circuit according to the present invention;
FIG. 2 is a schematic structural diagram of a USB-to-CAN circuit and a CAN communication circuit according to the present invention;
FIG. 3 is a schematic structural diagram of a USB TYPE-C interface circuit and a standby TYPE-C interface circuit according to the present invention;
FIG. 4 is a schematic diagram of the main control MCU circuit and the peripheral circuit according to the present invention;
FIG. 5 is a schematic diagram of the structure of a display circuit and a human-computer interaction circuit according to the present invention;
FIG. 6 is a schematic diagram of a memory circuit according to the present invention;
FIG. 7 is an enlarged detail view of portion A of FIG. 4 in accordance with the present invention;
FIG. 8 is an enlarged detail view of portion B of FIG. 4 in accordance with the present invention;
FIG. 9 is an enlarged detail view of portion C of FIG. 4 in accordance with the present invention;
FIG. 10 is an enlarged detail view of portion D of FIG. 4 in accordance with the present invention;
fig. 11 is an enlarged detail view of portion E of fig. 4 in accordance with the present invention.
In the figure: 1. a USB to KLINE circuit; 2. KLINE communication circuit; 3. a USB-CAN circuit; 4. a CAN communication circuit; 5. a USB TYPE-C interface circuit; 6. a standby TYPE-C interface circuit; 7. a master control MCU circuit; 8. a display screen circuit; 9. a human-computer interaction circuit; 10. a memory circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: the large screen hand-held calibration diagnostic apparatus comprises:
the main control MCU circuit 7 is electrically connected with the automobile electronic equipment and is used for diagnosing the running state of the automobile electronic equipment;
the USB-to-KLINE circuit 1 is connected between the automobile electronic equipment and an upper computer in series;
the USB-CAN circuit 3 is connected between the automobile electronic equipment and the upper computer in series;
the KLINE communication circuit 2 is connected between the master control MCU circuit 7 and the automobile electronic equipment in series;
and the CAN communication circuit 4 is connected between the main control MCU circuit 7 and the automobile electronic equipment in series.
In addition, please refer to fig. 3, further comprising a USB TYPE-C interface circuit 5, wherein the main control MCU circuit 7 is electrically connected to the CAN communication circuit 4, the KLINE communication circuit 2 and the USB TYPE-C interface circuit 5, respectively.
Further, please refer to fig. 3, further including a standby TYPE-C interface circuit 6, in the standby TYPE-C interface circuit 6, CANH, CANL, USB D +, USB D-, and KLINE pin terminals of the CON1 are respectively connected to CANH, CANL, USB D +, USB D-, and KLINE pin terminals of the USB TYPE-C interface circuit 5.
Meanwhile, please refer to fig. 5, further comprising a display screen circuit 8 and a human-computer interaction circuit 9, wherein both the display screen circuit 8 and the human-computer interaction circuit 9 are electrically connected to the main control MCU circuit 7, and the display screen circuit 8 is arranged to display the detected information of the electronic device of the automobile, so that the operator can know the status of the automobile more.
In addition, please refer to fig. 6, the vehicle-mounted monitoring system further includes a storage circuit 10, the storage circuit 10 is electrically connected to the main control MCU circuit 7, and the storage circuit 10 is configured to store the detected result information, so as to facilitate understanding of the historical conditions of the vehicle.
Referring to fig. 1, the KLINE communication circuit 2 includes a communication chip UF02, the model of the communication chip UF02 is: MC33660, wherein the TX and RX pins of communication chip UF02 are connected with the PA9 and PA10 pins of main control MCU circuit 7 UA1, the ISO terminal of communication chip UF02 converts the control signal of main control MCU circuit 7 into KLINE signal, and sends it to outside through ISO terminal, the upper computer is connected with USB TYPE-C interface circuit 5 and USB drive circuit, wherein the USB drive circuit includes drive chip UF04, the model of drive chip UF04 is CP2102, the D-, D + pins of drive chip UF04 are connected with the USB D-, USB D + pins of USB TYPE-C interface circuit 5, the TXD and RXD pins of drive chip UF04 are connected with the TX and RX pins of communication chip UF02, the ISO terminal of communication chip UF02 converts the control signal received from the upper computer into KLINE signal, and sends command to the automobile electronic equipment through ISO terminal, and the USB D-, RX pins of USB TYPE-C interface circuit 5 are connected with the USB D-, or RX pins of USB TYPE-C interface circuit 5, The USB D + pin terminal is correspondingly connected to the PB14 and PB15 pin terminals of the main control MCU circuit 7 UA 1.
Referring to fig. 2, the CAN communication circuit 4 includes a control chip UF01, the type of the control chip UF01 is TLE6250, pin terminals TXD and RXD of the control chip UF01 receive control signals from the main control MCU circuit 7 UA1, pin terminals CANH and CANL of the control chip UF01 are connected to one end of two coils of an inductor LF01, and the other end of the two coils transmit CAN signals to the automotive electronics device, specifically, when the CAN communication circuit is set, one end of the two coils of the inductor LF01 is grounded through a resistor RF01, an RF02 and a capacitor CF05, respectively, so as to perform filtering and reduce interference.
In specific real time, the upper computer is connected with the USB D-and USB D + pin ends of the USB TYPE-C interface circuit 5, the USB D-and USB D + pin ends of the USB TYPE-C interface circuit 5 are correspondingly connected with the D-and D + pin ends of the communication chip UF04, the TXD and RXD pin ends of the communication chip UF04 are correspondingly connected with the TX-and RX-pin ends of the communication chip UF02, the ISO end of the communication chip UF02 converts a control signal received by the upper computer into a KLINE signal and sends the KLINE signal to the outside through the ISO end, so that USB-to-KLINE communication is realized, and the upper computer is directly connected with automotive electronic equipment through the USB-to-KLINE circuit 1, namely, so that the upper computer is in an online KLINE mode;
the USB D-, USB D + pin end of the USB TYPE-C interface circuit 5 is directly connected with the PB14 and PB15 pin ends of the main control MCU circuit 7 UA1, the PB12 and PB13 pin ends of the main control MCU circuit 7 UA1 are connected with the RXD and TXD pin ends of the control chip UF01, under the condition, USB data CAN be connected with two coils of an inductor LF01 through CANH and CANL pin ends of the control chip UF01 after being processed by the main control MCU circuit 7 UA1, and the other ends of the two coils of the inductor LF01 respectively send CAN signals to automotive electronic equipment, so that a USB-to-CAN mode, namely an on-line CAN mode, is realized;
the pin ends of B2 and A2 of the USB TYPE-C interface circuit 5 are connected with the ISO end of a communication chip UF02, the pin ends of TX and RX of the communication chip UF02 are connected with the pin ends of PA9 and PA10 of the main control MCU circuit 7 UA1, under the condition, the main control MCU circuit 7 UA1 can directly communicate with a product through KLINE communication, and the KLINE communication offline mode is realized;
a10 and B10, A11 and B11 of the USB TYPE-C interface circuit 5 are respectively connected with one end of two coils of an inductor LF01, the other ends of the two coils are connected with CANL and CANH of a communication chip UF01, TXD and RXD of the communication chip UF01 are connected with PB13 and PB12 of a main control MCU circuit 7 UA1, under the condition, the MCU UA1 CAN directly communicate with a product through CAN communication, and the CAN communication offline mode is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The large-screen handheld calibration diagnostic apparatus is characterized by comprising:
the main control MCU circuit (7) is electrically connected with the automobile electronic equipment and is used for diagnosing the running state of the automobile electronic equipment;
the USB-to-KLINE circuit (1) is connected between the automobile electronic equipment and an upper computer in series;
the USB-CAN circuit (3) is connected between the automobile electronic equipment and the upper computer in series;
the KLINE communication circuit (2) is connected between the master control MCU circuit (7) and the automobile electronic equipment in series;
the CAN communication circuit (4) is connected between the master control MCU circuit (7) and the automobile electronic equipment in series;
still include USB TYPE-C interface circuit (5), master control MCU circuit (7) respectively with CAN communication circuit (4) KLINE communication circuit (2) and USB TYPE-C interface circuit (5) electricity is connected.
2. The large-screen handheld calibration diagnostic apparatus as claimed in claim 1, wherein the KLINE communication circuit (2) includes a communication chip UF02, pin terminals TX and RX of the communication chip UF02 are connected to pin terminals PA9 and PA10 of the UA1 of the main control MCU circuit (7), and an ISO terminal of the communication chip UF02 converts a control signal of the main control MCU circuit (7) into a KLINE signal and transmits the KLINE signal to the outside through the ISO terminal.
3. The large-screen handheld calibration diagnostic apparatus according to claim 2, wherein the upper computer is connected to the USB TYPE-C interface circuit (5) and the USB driving circuit, wherein the USB driving circuit includes a driving chip UF04, and a D-, D + pin terminal of the driving chip UF04 is correspondingly connected to a USB D-, USB D + pin terminal of the USB TYPE-C interface circuit (5);
the TXD pin ends and the RXD pin ends of the driving chip UF04 are correspondingly connected with the TX pin ends and the RX pin ends of the communication chip UF02, the ISO end of the communication chip UF02 converts the control signal received by the upper computer into a KLINE signal, and sends an instruction to the automobile electronic equipment through the ISO end.
4. The large-screen handheld calibration diagnostic apparatus as claimed in claim 3, wherein the USB D-, USB D + pin terminals of the USB TYPE-C interface circuit (5) are correspondingly connected to the PB14 and PB15 pin terminals of the UA1 of the main control MCU circuit (7).
5. The large-screen handheld calibration diagnostic device as claimed in any one of claims 2 to 4, wherein the CAN communication circuit (4) comprises a control chip UF01, and the TXD and RXD pin terminals of the control chip UF01 receive control signals from the UA1 of the master MCU circuit (7).
6. The large-screen handheld calibration diagnostic device of claim 5, wherein pin terminals CANH and CANL of the control chip UF01 are connected to one end of two coils of the inductor LF01, and the other end of the two coils transmits a CAN signal to the automotive electronics device.
7. The large-screen handheld calibration diagnostic apparatus as claimed in claim 1, further comprising a standby TYPE-C interface circuit (6), wherein CANH, CANL, USB D +, USB D-, KLINE pin terminals of CON1 are respectively connected to CANH, CANL, USB D +, USB D-, KLINE pin terminals of the USB TYPE-C interface circuit (5) in the standby TYPE-C interface circuit (6).
8. The large-screen handheld calibration diagnostic instrument as claimed in claim 1, further comprising a display screen circuit (8) and a human-computer interaction circuit (9), wherein the display screen circuit (8) and the human-computer interaction circuit (9) are both electrically connected to the main control MCU circuit (7).
9. The large-screen handheld calibration diagnostic apparatus as claimed in claim 1, further comprising a memory circuit (10), wherein the memory circuit (10) is electrically connected to the main control MCU circuit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422845.6A CN114296423A (en) | 2021-11-26 | 2021-11-26 | Large screen hand-held calibration diagnostic instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422845.6A CN114296423A (en) | 2021-11-26 | 2021-11-26 | Large screen hand-held calibration diagnostic instrument |
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| CN114296423A true CN114296423A (en) | 2022-04-08 |
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| CN202111422845.6A Pending CN114296423A (en) | 2021-11-26 | 2021-11-26 | Large screen hand-held calibration diagnostic instrument |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202815548U (en) * | 2012-09-11 | 2013-03-20 | 安徽江淮汽车股份有限公司 | Remote monitoring controller for hybrid vehicle |
| CN203658834U (en) * | 2013-11-06 | 2014-06-18 | 天津科技大学 | General self-setting instruction automobile diagnostic equipment |
| CN206235881U (en) * | 2016-11-08 | 2017-06-09 | 东莞传动电喷科技有限公司 | Hand-held demarcation diagnostic equipment |
| CN206301375U (en) * | 2016-11-08 | 2017-07-04 | 东莞传动电喷科技有限公司 | Wireless remote demarcates diagnostic equipment |
| CN107831707A (en) * | 2017-12-05 | 2018-03-23 | 成都优购科技有限公司 | Universal computer diagnostic equipment for a variety of car control communications protocol |
| CN208351322U (en) * | 2018-05-31 | 2019-01-08 | 深圳泰瑞谷科技有限公司 | Hand-held type automobile diagnostic equipment |
-
2021
- 2021-11-26 CN CN202111422845.6A patent/CN114296423A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202815548U (en) * | 2012-09-11 | 2013-03-20 | 安徽江淮汽车股份有限公司 | Remote monitoring controller for hybrid vehicle |
| CN203658834U (en) * | 2013-11-06 | 2014-06-18 | 天津科技大学 | General self-setting instruction automobile diagnostic equipment |
| CN206235881U (en) * | 2016-11-08 | 2017-06-09 | 东莞传动电喷科技有限公司 | Hand-held demarcation diagnostic equipment |
| CN206301375U (en) * | 2016-11-08 | 2017-07-04 | 东莞传动电喷科技有限公司 | Wireless remote demarcates diagnostic equipment |
| CN107831707A (en) * | 2017-12-05 | 2018-03-23 | 成都优购科技有限公司 | Universal computer diagnostic equipment for a variety of car control communications protocol |
| CN208351322U (en) * | 2018-05-31 | 2019-01-08 | 深圳泰瑞谷科技有限公司 | Hand-held type automobile diagnostic equipment |
Non-Patent Citations (1)
| Title |
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| 杨立红;: "机车故障在线诊断装置及其系统设计", 科技创新与生产力, no. 11, 10 November 2016 (2016-11-10) * |
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