CN220933389U - Vehicle diagnosis device and system - Google Patents

Abstract

The utility model discloses a vehicle diagnosis device and a system, which have the characteristics of low cost, low power consumption, small volume, portability and the like, support high-bandwidth transmission and concurrent processing in the vehicle diagnosis process, and have high reusability for different diagnosis stations, wherein the device comprises a shell; the core board is arranged in the shell, and is provided with a diagnosis module, a cache module and a wireless module; the interface component is arranged on the shell and is matched with an external interface of the vehicle; and the interaction assembly is arranged on the shell and used for enabling the diagnosis module to interact with a user in a man-machine mode, wherein the diagnosis module is electrically connected with the vehicle through the interface assembly and used for performing diagnosis on the vehicle, the buffer module is electrically connected with the diagnosis module and used for buffering data generated by performing diagnosis on the diagnosis module, the wireless module is electrically connected with the diagnosis module and used for connecting the diagnosis module with the main controller, and the main controller is used for performing diagnosis together with the diagnosis module.

Description

Vehicle diagnosis device and system

Technical Field

The present utility model relates to the field of automotive diagnostic tools, and more particularly, to a vehicle diagnostic device and a vehicle diagnostic system.

Background

In general, in a production line of a vehicle such as an automobile, it is necessary to perform a vehicle offline diagnosis to ensure the stability and reliability of the vehicle offline. That is, after a certain process such as a predetermined assembly is completed in an assembly process, various indexes of the vehicle related to the process are detected in a matched manner, and if there is a problem in the detection, it is necessary to remove the failure of the vehicle by means such as reconstruction and repair until the detection is passed, and the vehicle cannot be taken off line.

However, because the production processes of different vehicles are different, vehicle manufacturers or suppliers often need to develop and configure different test equipment for each process in the diagnosis process, so that the diagnostic personnel in each link can complete the diagnosis of the vehicle by using the equipment and the diagnostic program on the equipment.

In the prior art, in order to meet the above requirements, various diagnostic programs need to be installed in the developed vehicle diagnostic device, and a diagnostic person is supported to debug the programs, so that the vehicle diagnostic device is required to have higher running performance and better man-machine interaction performance, which results in high cost and large volume of the device, and is inconvenient in use. It is not preferable to develop a dedicated diagnostic device for each diagnostic process only, thereby reducing the cost and volume of a single device, which may lead to difficulty in management and use of the apparatus.

Disclosure of utility model

The utility model aims to provide a vehicle diagnosis device which has low cost, low power consumption, small volume and portability, supports high-bandwidth transmission and concurrent processing in the vehicle diagnosis process and has high reusability for different diagnosis procedures.

The vehicle diagnostic device provided by the utility model has the following technical characteristics: comprises a shell; the core board is arranged in the shell, and is provided with a diagnosis module, a cache module and a wireless module; the interface component is arranged on the shell and is matched with an external interface of the vehicle; and the interaction assembly is arranged on the shell and used for enabling the diagnosis module to interact with a user in a man-machine mode, wherein the diagnosis module is electrically connected with the vehicle through the interface assembly and used for performing diagnosis on the vehicle, the buffer module is electrically connected with the diagnosis module and used for buffering data generated by performing diagnosis on the diagnosis module, the wireless module is electrically connected with the diagnosis module and used for connecting the diagnosis module with the main controller, and the main controller is used for performing diagnosis together with the diagnosis module.

Further, the vehicle diagnostic device provided by the utility model can also have the technical characteristics that the core board comprises a substrate, and the diagnostic module, the interface component and the interaction component are all arranged on the substrate.

Further, the vehicle diagnostic device provided by the utility model can be further characterized in that the interactive component comprises a touch screen, a plurality of prompt lamps and a plurality of keys, wherein one surface of the shell facing a user is provided with a screen mounting groove and a plurality of mounting holes positioned at the periphery of the screen mounting groove, the touch screen is electrically connected with the diagnostic module and is mounted in the screen mounting groove, the prompt lamps and the keys are fixed at the edge of the substrate and are arranged at the periphery of the touch screen in a matching manner.

Further, the vehicle diagnostic device provided by the utility model can be further characterized in that the core board comprises a first substrate, a second substrate and a supporting component, wherein the supporting component is used for enabling the second substrate and the first substrate to be staggered to form a double-layer structure, the diagnostic module and the interface component are arranged on one surface, close to the second substrate, of the first substrate, and the interaction component is arranged on the second substrate.

Further, the vehicle diagnostic apparatus provided by the present utility model may further have the technical feature that: the power supply assembly is electrically connected with the interface assembly, the wireless module and the diagnosis module and used for providing power and performing power adaptation, and the power supply assembly is arranged between the first substrate and the second substrate.

Further, the vehicle diagnostic apparatus provided by the present utility model may further have the technical feature that: the interactive component consists of a plurality of indicator lamps and at least one key, wherein one surface of the shell facing a user is provided with a plurality of mounting holes, the indicator lamps and the keys are fixed on one surface of the second substrate far away from the first substrate, and the interactive component is matched with the mounting holes to be arranged on the shell.

Further, the vehicle diagnostic device provided by the utility model may further have a technical feature that the interface assembly includes a connector interface, at least two paths of interfaces for adaptation, and an automatic change-over switch, the connector interface is adapted to a model of an external interface, the automatic change-over switch is disposed between the connector interface and the interfaces for adaptation, and the interfaces for adaptation are used for switching and matching corresponding interfaces for adaptation according to an electrical signal output by the external interface, and the interfaces for adaptation are any one or more of a CAN interface, a CANFD interface, and an ETH interface.

Further, the vehicle diagnostic device provided by the utility model can be further characterized in that the wireless module is a Wifi module, the Wifi module comprises a Wifi chip and an antenna, the Wifi chip is arranged on the core board and is electrically connected with the diagnostic module to receive the electric signal of the diagnostic module, the antenna is electrically connected with the Wifi chip and is used for completing signal transceiving according to the electric signal of the Wifi chip, the bandwidth rate of the wireless module is 600-900Mbits, the docking bandwidth rate of the diagnostic module and the wireless module is 400-1000Mbits, and the buffer module is a high-speed memory supporting the docking bandwidth rate.

Further, the vehicle diagnostic apparatus provided by the present utility model may further have the technical feature that: and the expansion interface component is electrically connected with the diagnosis module, wherein the expansion interface component is any one or more of a USB interface, a Type-C interface, a flash memory interface and a Pogo Pin interface.

The present utility model also provides a vehicle diagnostic system characterized by comprising: a main controller; and a plurality of the vehicle diagnostic devices of any one of the above, which are communicatively connected to the main controller via a wireless module.

Effects and effects of the utility model

According to the vehicle diagnosis device and the system, the vehicle diagnosis device is formed by the low-performance core board, the necessary interface component and the necessary interaction component, so that the device is more convenient to carry compared with the traditional diagnosis device in structure and can be held by one hand or put into a pocket. The diagnosis module, the buffer module and the wireless module are arranged on the core board, the diagnosis program is executed through the diagnosis module, the buffer module buffers the diagnosis data, and the connection is established between the wireless module and the main controller, so that the main controller can jointly complete the diagnosis operation of the vehicle with the diagnosis module, the defect of lower performance of the diagnosis module is avoided, and the vehicle diagnosis device is convenient to carry and use and can normally meet the diversified diagnosis requirements in the vehicle offline process.

In addition, the vehicle diagnosis device can be further provided with the touch screen, the prompt lamp and the keys, so that the vehicle diagnosis device can consider part of man-machine interaction performance during development, and is suitable for scenes with certain operation requirements of diagnostic personnel.

In addition, the vehicle diagnosis device can be only provided with the prompt lamp and the key, the complex man-machine interaction part is abandoned, and the current running state is prompted to the diagnosis personnel only through simple key operation and the prompt lamp, so that the diagnosis personnel can start diagnosis only through the key starting device and connecting the key starting device to an external interface of the vehicle in the actual operation process, the diagnosis operation of the diagnosis personnel is greatly simplified, and the vehicle diagnosis device is easy to use on the basis of portability.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic diagram of a vehicle diagnostic system according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a vehicle diagnostic apparatus according to an embodiment of the present utility model.

Fig. 3 is a block diagram of a vehicle diagnostic apparatus according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of ODB pin definition in an embodiment of the utility model.

Fig. 5 is a schematic diagram of a vehicle diagnostic system according to a second embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of a vehicle diagnostic apparatus according to a second embodiment of the present utility model.

Fig. 7 is a block diagram of a vehicle diagnostic apparatus according to a second embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. 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.

The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the order of use may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in other sequences than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Fig. 1 is a schematic diagram of a vehicle diagnostic system according to a first embodiment of the present utility model, fig. 2 is a schematic diagram of a vehicle diagnostic apparatus according to a first embodiment of the present utility model, and fig. 3 is a block diagram of a vehicle diagnostic apparatus according to a first embodiment of the present utility model. Referring to fig. 1, a vehicle diagnostic system 1000 includes a plurality of vehicle diagnostic devices 100 and a main controller 200 communicatively connected thereto.

Referring to fig. 2 and 3, the vehicle diagnostic apparatus 100 specifically includes a housing, a core board 10, an interface assembly 20, an interaction assembly 30, a power supply assembly 40, and an expansion interface assembly 50. The core board 10 includes a substrate, and a diagnosis module 130, a cache module 131, a wireless module 150, and a bluetooth module 170 disposed on the substrate.

In the present embodiment, the vehicle diagnostic apparatus 100 is a handheld diagnostic terminal; the main controller 200 is a server in which all required diagnostic programs of the current manufacturer during the vehicle's offline process are stored. The diagnostic person carries the vehicle diagnostic device 100 during the diagnosis, and performs diagnosis on the vehicle by the diagnostic program preloaded in the vehicle diagnostic device 100. When it is necessary to execute a diagnostic program that is not loaded in the vehicle diagnostic apparatus 100, diagnosis may be completed by the main controller 200 in conjunction with the vehicle diagnostic apparatus 100 by connecting the vehicle diagnostic apparatus 100 to the main controller 200 in communication.

The core board 10 is used to realize main diagnostic functions of the vehicle diagnostic device 100, such as transmitting diagnostic signals to a vehicle, collating uploaded diagnostic data, executing diagnostic programs, and the like. Next, the core board 10 and its related modules will be specifically described:

The substrate is used for fixing and electrically connecting the diagnostic module 130, the buffer module 131, the wireless module 150, the interface module 20, the interaction module 30, the power module 40, the expansion interface module 50 and other hardware, and in this embodiment, the substrate is a circuit board.

The diagnosis module 130 is electrically connected to and controls the cache module 131, the wireless module 150, the interface module 20, the interaction module 30, the power module 40, the expansion interface module 50, and the like. In addition, the diagnostic module 130 can be electrically connected to the vehicle through the interface assembly 20 to perform diagnostics on the vehicle.

The cache module 131 includes a high-speed memory provided in the diagnosis module 130 and a flash memory card connected through a flash memory interface.

In one embodiment, the diagnostic module 130 is an ARM host processor of type Cortex-A7 (dual core) that supports parallel processing and is compatible with multiple diagnostic protocols. The high-speed memory is a DDR memory of 256M and a Nand-flash memory of 256M which are arranged in the ARM main processor, the flash memory card is an SD card, and the flash memory card is connected with the ARM main processor through an SD card slot (namely the expansion interface component 50).

As shown in fig. 1, in the present embodiment, the vehicle diagnostic apparatus 100 is communicatively connected to the main controller 200 through the wireless module 150, and in the present embodiment, the main controller 200 is a server. To perform diagnostic tasks on the vehicle, the main controller 200 cooperates with the diagnostic module 130 to perform diagnostics, namely: the diagnostic module 130 may store different diagnostic programs and complete diagnosis of the vehicle through the interface component 20, and diagnostic data, processing results, logs and other data generated in the diagnostic process may be stored through the buffer module 131, and when the vehicle diagnostic device 100 establishes a connection with the main controller 200 through the wireless module 150, the data buffered in the buffer module 131 is uploaded to the main controller 200, and the main controller 200 performs analysis, statistics, archiving and other processes on the data.

However, since there are many actual vehicle diagnostic programs, the low-cost diagnostic module 130 may not be able to store all diagnostic programs, and at this time, if the vehicle diagnostic apparatus 100 needs to execute a diagnostic program that is not loaded, the diagnostic module 130 may be connected to the main controller 200, acquire the diagnostic program from the main controller 200, and complete loading or replacement. Alternatively, the diagnostic module 130 may run the diagnostic program through the main controller 200 without loading the diagnostic program, and perform diagnosis by forwarding the diagnostic signal through the vehicle diagnostic device 100.

During the diagnostic process, in particular, because of the compatibility of the ARM host processor, a variety of communication protocols and hardware protocols required during the diagnostic process are stored thereon via the protocol stack, so that the diagnostic module 130 can communicate with the vehicle and call hardware such as the wireless module 150, the touch screen 193, etc. based on these protocols. When obtaining diagnostic data, processing results, logs, etc., the ARM host processor sorts and archives these data, and if there is a connection between the wireless module 150 and the host controller 20 at this time, the sorted data is uploaded to the host controller 20 in parallel.

The wireless module 150 is a WIFI module, and is configured to enable the diagnostic module 130 to be in communication connection with the main controller 20 through WIFI and complete data transmission and reception. The WIFI module 150 includes a WIFI chip 151 and an antenna 152.

The WIFI chip 151 is electrically connected to the diagnostic module 130 on the substrate and electrically connected to the second DC-DC converter 144, and obtains the working voltage through the second conversion end of the second DC-DC converter 144 to ensure operation. The antenna 152 is connected to the WIFI chip 151, and is used for providing signal transmission and reception.

In an actual application, the diagnostic program is downloaded in advance in the diagnostic module 130, and the WIFI module 150 can upload the diagnostic data obtained after the diagnostic module 130 completes the vehicle diagnosis and the corresponding result to the server to complete archiving and storage when establishing communication connection with the main controller 20.

In another practical application, the diagnostic module 130 is not provided with the currently required diagnostic program, at this time, the main controller 20 runs the diagnostic program and sends the diagnostic signal to the diagnostic module 130 through the wireless module 150, the diagnostic module 130 invokes various protocols to communicate with the vehicle to complete diagnosis, and the diagnostic data and the corresponding results are temporarily stored in the buffer module 131 and then uploaded to the main controller 20 in parallel to complete storage. At this time, the main controller 20 and the diagnostic module 130 together perform vehicle diagnosis, so that the diagnostic module 130 can flexibly adapt to different diagnostic situations in practical application.

To achieve high bandwidth transmission of the vehicle diagnostic device 100, the bandwidth rate of the entire wireless module 150 needs to be 600-900Mbits (preferably 750 Mbits), and in coordination with this rate, the docking bandwidth rate of the diagnostic module 130 with the WIFI chip 151 needs to be 400-1000Mbits (preferably 700 Mbits). In this embodiment, the WIFI chip 151 supports two frequencies 2.4G/5G, the antenna 152 is a dual antenna supporting MIMO, and the signal frequency is 80Mhz, so that 5G WIFI supports a transmission rate of 867Mbps at the highest. Meanwhile, the high-speed memory arranged in the cache module 131 can also support high-speed reading and writing, and the docking bandwidth rate of the diagnosis module 130 is effectively supported. By such a design, the vehicle diagnostic apparatus 100 has a high bandwidth, and can realize timely downloading and uploading of diagnostic data in cooperation with the parallel processing capability.

The interface assembly 20 is mounted in part on the housing and in part on the base plate for interfacing with an external interface of the vehicle. The interface assembly 20 includes a connector interface 121, two-way adapter interfaces 122 (1), 122 (2), and an automatic transfer switch 123.

Wherein the connector interface 121 matches the model of the external interface of the vehicle, such as an OBD interface or other industrial grade connector interface, the connector interface 121 is mounted on the housing to facilitate connection of the vehicle diagnostic device 100 to the vehicle by a diagnostic person. The adapting interface 122 corresponds to an interface protocol supported by the external interface of the vehicle, the adapting interface 122 and the automatic change-over switch 123 are mounted on the substrate, and the two paths of adapting interfaces 122 (1) and 122 (2) are respectively electrically connected with the diagnostic module 130.

As a specific embodiment, the adapting interfaces 122 are respectively a CAN interface and an ETH interface, it is to be understood that the adapting interfaces may be correspondingly set according to interface protocols supported by various vehicle types in the actual market, for example, in other embodiments, the adapting interfaces 122 may also be CANFD interfaces or other interfaces capable of supporting vehicle diagnosis, and three or more adapting interfaces 122 may be set as required.

The automatic switching switch 123 is configured to automatically switch the corresponding adapting interface 122 according to an interface protocol corresponding to the external interface when the connector interface 121 is connected to the external interface of the vehicle. Specifically, the automatic switch 123 is an automatic switch matrix, and is disposed between the connector interface 121 and the adapting interface 122, so as to automatically adapt to different OBD interface pin definitions. When the signal type output by the vehicle to the external interface is received, the automatic switching switch 123 switches the corresponding adapting interface 122 according to the signal type.

In this embodiment, as shown in fig. 4, since the pin definitions of different interface types in the OBD interface are different, that is, when the vehicle is connected, the different interface protocols will send the electrical signals to the connector interface 121 through different pins, so the automatic switch 123 can determine the type of the current interface protocol according to the pin number corresponding to the electrical signals, thereby switching the matching corresponding adapting interface 122.

In practical situations, due to the safety access mechanism of the vehicle, data required for diagnosis must be transmitted and received through a specific physical access interface on the vehicle when performing diagnosis operation, and the types of interfaces supported by different vehicles may also be different, which causes a certain trouble in customizing the diagnosis device. Therefore, the method and the device can complete automatic adaptation to different vehicles through the automatic change-over switch 123 by presetting the interface types commonly used by the vehicles in the market, thereby improving the universality of the vehicle diagnosis device 100 in the vehicle offline diagnosis and passing.

The interaction component 30 is mounted on the housing for enabling the diagnostic module 130 to interact with a user.

As a specific embodiment, as shown in FIG. 2, the interactive assembly 30 includes a touch screen 193, five indicator lights 191, and five keys 192. Specifically, the front surface of the housing (i.e., the surface of the vehicle diagnostic device 100 facing the user when in use) may be provided with a screen mounting groove, and ten mounting holes adapted to the number and shape of the indicator lights 191 and the keys 192 are provided below the screen mounting groove.

The touch screen 193 is used to provide display and input, is mounted in the screen mounting slot, and is electrically connected to the diagnostic module 130 through a data link. In this embodiment, the touch screen 193 may be a touch-sensitive LCD screen for displaying a corresponding interface according to a diagnostic program stored in the diagnostic module 130 and allowing a diagnostic person to perform a related operation.

Although the touch screen 193 is a touch screen in the present embodiment, a diagnostic person may input an operation command through the touch screen, in practical application, the touch screen 193 may be replaced by a normal screen, so that the diagnostic person operates through the keys 192.

The indicator light 191 is used to indicate the execution result of the diagnostic program or other results of the diagnostic module 130. As a specific embodiment, each of the indicator lights 191 may be a charge indicator light indicating a charge state of the vehicle diagnostic device 100, an operation indicator light indicating whether the diagnostic program is running, a vehicle connection indicator light indicating whether the interface module 20 is connected to the vehicle, a WIFI indicator light indicating a WIFI connection state, or the like, respectively.

The buttons 192 are used for a diagnostic person to simply control the vehicle diagnostic device 100, and as a specific embodiment, each button 192 may be a power on/off button for turning on/off the vehicle diagnostic device 100, and other function buttons adapted to a diagnostic program, such as start-up diagnosis, pause diagnosis, etc.

The indicator light 191 and the key 192 are fixed on the substrate, are electrically connected with the diagnostic module 130, and are exposed to the outside of the housing through the mounting hole on the housing, so that the user can view the status of the indicator light or operate the key.

Although the indicator light 191 and the key 192 are disposed below the touch screen 193 in the present embodiment, in practical application, the indicator light 191 and the key 192 may be disposed on a side of the touch screen or on a side of the housing, which is convenient for a user to observe and use, and the present embodiment is not limited thereto. It should be understood that the number of the indicator lights 191 and the buttons 192 and the corresponding functions can be adjusted according to the actual development requirements, which is not limited in this embodiment.

In addition, in other implementations, the interaction component 30 can also include a speaker to alert the diagnostician by way of playing audio.

The power module 40 is electrically connected to the interface module 20, the wireless module 150 and the diagnostic module 130, respectively, for providing power and adapting power.

Specifically, the power supply assembly 40 includes a protection assembly 141, a first DC-DC converter 142, a power switch 143, and a second DC-DC converter 144, which are sequentially connected in series, and further includes a battery module electrically connected to the first DC-DC converter 142, the battery module including a battery manager 145 and a battery 146.

The protection component 141 is used for protecting the power source output by the vehicle through the interface component 20, and has a fuse and a transient diode (TVS), and the protection component 141 can timely protect the vehicle diagnostic device 100 from damage when the vehicle erroneously outputs a large amount of voltage.

The first conversion terminal of the first DC-DC converter 142 is electrically connected to the protection component 141, and the second conversion terminal is electrically connected to the first conversion terminal of the second DC-DC converter 144 through the power switch 143. In this embodiment, the first DC-DC converter 142 is used for converting voltages of 12V and 5V into each other, the voltage of the first converting terminal is 12V, and the voltage of the second converting terminal is 5V.

The power switch 143 is used to control the turning on and off of the vehicle and the power supply from the battery 146 to the diagnostic module 130, and to realize the operation switch of the entire vehicle diagnostic apparatus 100.

The second conversion end of the second DC-DC converter 144 is electrically connected to the diagnostic module 130 and the Wifi module 150. In this embodiment, the second DC-DC converter 144 is configured to mutually convert voltages of 5V and 3.3V, wherein the voltage of the first converting end is 5V, and the voltage of the second converting end is 3.3V.

In this embodiment, since the battery 146 is provided and the battery manager 145 is used to manage and control the power output of the battery 146, the vehicle diagnostic device 100 can also operate normally when not connected to the vehicle, so that the diagnostic device is convenient for the diagnostic personnel to carry and use.

The expansion interface assembly 50 is secured to the housing and is electrically connected to the diagnostic module 130 to perform a corresponding function.

In one embodiment, the expansion interface component 50 is a Pogo Pin interface 161 and a flash memory interface 162.

The Pogo Pin interface 161 is disposed on a side of the housing, and can support data transmission and charging at the same time.

The flash memory interface 162 is an SD card slot, and is used for inserting an SD card and enabling the diagnostic module 130 to read the SD card, so that the SD card becomes the cache module 131.

In other embodiments, the expansion interface component may be any one of a USB interface, a Type-C interface, or any combination of a plurality of USB interfaces, a Type-C interface, a Pogo Pin interface, and an SD interface. Specifically:

the USB interface is used for connecting the USB flash disk, so that the content in the USB flash disk can be read. When the system image file is applied to the vehicle diagnosis device, the USB flash disk can be used for installing the system image file, so that when the system of the diagnosis module 130 needs to be installed, updated or refreshed, the system can be refreshed and installed through the USB flash disk. In addition, the connection of the USB interface may also be used to perform data export work on the diagnostic data and corresponding results of the diagnostic module 130.

The Type-C interface has similar functions to the Pogo Pin interface, and can support data transmission and charging at the same time.

The bluetooth module 170 is used to enable the diagnostic module 130 to communicate with bluetooth enabled configuration devices held by a diagnostic person. In practical applications, based on the bluetooth module 170, a diagnostician can also change configuration information of the diagnostic module 130, for example, configure or change the ssid and the IP address of WIFI through the bluetooth connection.

In the present embodiment, the overall voltage of the core board 10 is below 5V, the power consumption is controlled between 1.5W and 2.0W, and the power consumption of the entire vehicle diagnostic apparatus 100 is controlled between 3W and 5W, so the core board 10 also has a low power consumption characteristic, which can effectively cope with long-time vehicle diagnostic demands.

It should be further noted that, in the implementation, the vehicle diagnostic device 100 may further include other components necessary for achieving normal operation. Further, it will be understood by those skilled in the art that the vehicle diagnostic apparatus 100 described above may contain only the components necessary to implement the embodiment of the present application, and not necessarily all of the components shown in the drawings.

< Example two >

Fig. 5 is a schematic diagram of a vehicle diagnostic system according to a second embodiment of the present utility model, fig. 6 is a schematic diagram of a vehicle diagnostic apparatus according to a second embodiment of the present utility model, and fig. 7 is a block diagram of a vehicle diagnostic apparatus according to a second embodiment of the present utility model. Referring to fig. 1, a vehicle diagnostic system 2000 includes a plurality of vehicle diagnostic devices 100' and a main controller 200 communicatively connected thereto.

Referring to fig. 6 and 7, the vehicle diagnostic apparatus 100' specifically includes a housing, a core board 10', an interface assembly 20, an interaction assembly 30', a power supply assembly 40, and an expansion interface assembly 50.

The vehicle diagnostic apparatus 100' of the second embodiment differs from the first embodiment in the structure of the core board 10' and the configuration of the interaction assembly 30 '. The method comprises the following steps:

First, explaining the distinguishing structure of the core board 10', the core board 10' of the second embodiment includes a first substrate, a second substrate, and a supporting component, where the first substrate and the second substrate are each a circuit board, and the supporting component is used to make the second substrate and the first substrate stagger to form a double-layer structure.

The core board 10 'further includes a diagnosis module 130', a buffer module 131', a wireless module 150', an interface assembly 20, and a power assembly 40 all disposed on a surface of the first substrate near the second substrate, that is, spatially disposed between the first substrate and the second substrate; the interaction assembly 30' is disposed on a surface of the second substrate away from the first substrate, i.e. spatially located between the second substrate and the housing.

The basic functions of the diagnosis module 130', the buffer module 131' and the wireless module 150' are similar to those of the first embodiment, and will not be described again.

Secondly, to explain the specific constitution of the interaction component 30', the interaction component 30' of the second embodiment only includes four indicator lamps 191 'and one key 192', and correspondingly, the front surface of the housing also has only five mounting holes adapted to the number and shape of the indicator lamps 191 and the keys 192.

The indicator light 191 and the key 192 are fixed on the second substrate, are electrically connected with the diagnostic module 130, and are exposed to the outside of the housing through the mounting hole on the housing, so that the user can view the status of the indicator light or operate the key.

Compared with the first embodiment, the structure of the second embodiment further discards the complex man-machine interaction part, and only prompts the current running state to the diagnostician through simple key operation and a prompt lamp, so that the diagnostician can start diagnosis only by starting the vehicle diagnosis device 100' through the key and connecting the vehicle diagnosis device to an external interface of the vehicle in the actual operation process, the diagnosis operation of the diagnostician is greatly simplified, and the portable vehicle diagnosis device is easy to use.

After the vehicle diagnostic apparatus 100 'is connected to the vehicle, the diagnostic module 130' transmits a signal to the main controller 200 when judging that the connection is successful, and the main controller 200 controls the diagnostic process to be performed. In the diagnosis process, the execution process of the diagnosis program, and the operations of receiving, transmitting, buffering, uploading data are similar to those described in the first embodiment, and will not be repeated.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A vehicle diagnostic device comprising a housing, characterized in that:

The core board is arranged in the shell and is provided with a diagnosis module, a cache module and a wireless module;

the interface component is arranged on the shell and is matched with an external interface of the vehicle; and

An interaction component, which is arranged on the shell and is used for enabling the diagnosis module to perform man-machine interaction with a user,

Wherein the diagnostic module is electrically connected to the vehicle via the interface assembly and is configured to perform diagnostics on the vehicle,

The buffer module is electrically connected with the diagnosis module and is used for buffering data generated by the diagnosis module executing the diagnosis,

The wireless module is electrically connected with the diagnosis module and used for connecting the diagnosis module with a main controller, and the main controller is used for executing diagnosis together with the diagnosis module.

2. The vehicle diagnostic apparatus according to claim 1, characterized in that:

Wherein the core board comprises a base board,

The diagnosis module, the interface component and the interaction component are all arranged on the substrate.

3. The vehicle diagnostic apparatus according to claim 2, characterized in that:

wherein the interaction component comprises a touch screen, a plurality of indicator lamps and a plurality of keys,

The side of the shell facing the user is provided with a screen mounting groove and a plurality of mounting holes positioned at the periphery of the screen mounting groove,

The touch screen is electrically connected with the diagnosis module and is arranged in the screen mounting groove,

The prompting lamp and the keys are fixed at the edge of the substrate and are matched with the mounting holes to be arranged on the periphery of the touch screen.

4. The vehicle diagnostic apparatus according to claim 1, characterized in that:

the core plate comprises a first base plate, a second base plate and a supporting component,

Wherein the supporting component is used for enabling the second substrate and the first substrate to be staggered to form a double-layer structure,

The diagnostic module and the interface assembly are disposed on a side of the first substrate proximate to the second substrate,

The interaction component is arranged on the second substrate.

5. The vehicle diagnostic device according to claim 4, characterized by further comprising:

the power supply component is electrically connected with the interface component, the wireless module and the diagnosis module and is used for providing power supply and adapting the power supply,

The power supply assembly is disposed between the first substrate and the second substrate.

6. The vehicle diagnostic device according to claim 4, characterized by further comprising:

Wherein the interaction component consists of a plurality of indicator lights and at least one key,

The side of the housing facing the user is provided with a plurality of mounting holes,

The prompting lamp and the keys are fixed on one surface, far away from the first substrate, of the second substrate, and are arranged on the shell in a matching manner with the mounting holes.

7. The vehicle diagnostic apparatus according to claim 1, characterized in that:

Wherein the interface component comprises a connector interface, at least two paths of interfaces for adapting and an automatic change-over switch,

The connector interface is adapted to the model of the external interface,

The automatic change-over switch is arranged between the connector interface and the adapting interface and is used for switching the adapting interface corresponding to the matching according to the electric signal output by the external interface,

The adapting interface is any one or more of a CAN interface, a CANFD interface and an ETH interface.

8. The vehicle diagnostic apparatus according to claim 1, characterized in that:

wherein, the wireless module is a Wifi module, the Wifi module comprises a Wifi chip and an antenna,

The Wifi chip is arranged on the core board and is electrically connected with the diagnosis module to receive the electric signal of the diagnosis module,

The antenna is electrically connected with the Wifi chip and used for completing signal transceiving according to the electric signal of the Wifi chip,

The wireless module has a bandwidth rate of 600-900Mbits,

The diagnostic module interfaces with the wireless module at a docking bandwidth rate of 400-1000Mbits,

The buffer module is a high-speed memory supporting the docking bandwidth rate.

9. The vehicle diagnostic device according to claim 1, characterized by further comprising:

an expansion interface assembly electrically connected with the diagnostic module,

The expansion interface component is any one or more of a USB interface, a Type-C interface, a flash memory interface and a Pogo Pin interface.

10. A vehicle diagnostic system, comprising:

A main controller; and

A plurality of the vehicle diagnostic apparatuses according to any one of claims 1 to 9, being communicatively connected to the main controller via a wireless module.