Portable automobile diagnosis equipment

Abstract

The utility model relates to a portable automobile diagnosis device. The portable automobile diagnosis equipment comprises a signal processing terminal which is used for being connected with an automobile diagnosis interface and receiving and processing state data of an automobile; the handheld terminal is connected with the signal processing terminal and is used for receiving, processing and displaying the state data processed by the signal processing terminal, and a user can select and operate the state data; the signal processing terminal comprises a first data processing module, a data transceiving circuit and a first wireless data transceiving circuit; and the handheld terminal comprises a second data processing module and a second wireless data transceiving circuit. According to the utility model, the problems of complicated operation, insufficient flexibility, large volume and high cost of the existing diagnosis equipment are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive diagnostic technology, specifically to a portable automotive diagnostic device. Background Technology

[0002] Currently, all automobiles are equipped with multiple control units, each with self-diagnostic capabilities. These units acquire the vehicle's operating status in real time through sensors distributed throughout the vehicle. Once a fault is detected, these controllers record the fault information in detail and store it in the non-volatile memory of their respective control units. Subsequently, using specific equipment and methods, this fault information is read, allowing for quick and accurate location of the fault and determination of its cause. This process optimizes the automobile's production and maintenance workflow. The key equipment for achieving this function is the diagnostic tool, but original equipment manufacturer (OEM) diagnostic tools suffer from problems such as large size, high cost, and insufficient flexibility. Therefore, there is an urgent need to find a diagnostic tool that is small, low-cost, and highly flexible.

[0003] Existing technology discloses a personal automotive diagnostic device. This device mainly includes an information processor and a handheld computer. One end of the information processor is connected to an automotive diagnostic interface. The information processor includes an automotive interface circuit and a microprocessor. The automotive interface circuit connects to the automotive diagnostic interface and receives vehicle status information transmitted through the interface. The microprocessor then processes this information. The device also includes an infrared probe with infrared modulation and demodulation functions connected to the information processor. The information processor further includes an infrared communication controller connected to the microprocessor, which is connected to the infrared probe via a cable. The handheld computer has an infrared communication window for communication with the probe. However, this diagnostic device relies on infrared communication, which limits its operating environment, especially in strong sunlight where communication quality is easily affected, leading to low stability. Furthermore, it requires docking the device with the handheld computer's infrared probe, making operation inconvenient, and its functionality is relatively limited, resulting in higher costs.

[0004] Existing technology also discloses an automotive diagnostic device that displays vehicle diagnostic information via a handheld computer. This device includes: a memory for storing fault code information; a data processing unit for reading vehicle electronic control system data streams and fault information, processing the data, and controlling the handheld computer display; a diagnostic interface circuit for communication between the data processing unit and the vehicle diagnostic connector, transmitting data with the vehicle's ECU; a display interface circuit; and a data connection cable connecting the display interface circuit to the handheld computer, displaying the vehicle electronic control system data streams and fault information on the handheld computer's screen. While this solution achieves convenient data transmission and display, the data cable must be plugged and unplugged each time it is used, making operation cumbersome. Furthermore, relying on a handheld computer as the display terminal increases the overall cost. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a portable automotive diagnostic device to solve the problems of existing diagnostic devices, such as cumbersome operation, lack of flexibility, large size and high cost.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A portable automotive diagnostic device, comprising:

[0008] The signal processing terminal is used to connect to the vehicle diagnostic interface to receive and process vehicle status data.

[0009] A handheld terminal, connected to the signal processing terminal, is used to receive, process, and display the status data processed by the signal processing terminal, and allows the user to select operations.

[0010] The signal processing terminal includes:

[0011] The first data processing module is used to decode and re-encode the received vehicle status data, and to decode the received data from the handheld terminal, thereby enabling the configuration of the signal processing terminal and the sending of diagnostic data to the vehicle.

[0012] The first data transceiver circuit is connected to the first data processing module and is used to receive the vehicle's status data and send it to the first data processing module.

[0013] The second data transceiver circuit is connected to the first data processing module and is used to send the data processed by the first data processing module to the handheld terminal through the first antenna, and at the same time receive the data sent by the handheld terminal through the first antenna.

[0014] The handheld terminal includes:

[0015] The second data processing module is used to decode the data received from the signal processing terminal; thereby displaying it on the touch screen in an easy-to-understand way, such as pictures and text, so that users can interact with the computer by clicking on the touch screen, which is convenient and quick.

[0016] The third data transceiver circuit, connected to the second data processing module, is used to receive the data processed by the signal processing terminal via the second antenna and send it to the second data processing module.

[0017] Based on the aforementioned technical means, the combination of a handheld terminal and a signal processing terminal makes automotive diagnostic equipment more portable. Users can perform automotive diagnostics anytime, anywhere, without relying on fixed diagnostic equipment or workplaces. The handheld terminal not only receives and displays the status data processed by the signal processing terminal but also allows users to select operations, making operation more intuitive and convenient, and improving diagnostic efficiency. The signal processing terminal is responsible for receiving and processing the vehicle's status data, ensuring the accuracy and reliability of the data; the processed data is then displayed to the user through the handheld terminal, allowing the user to more clearly understand the vehicle's status. Since the handheld terminal is connected to the signal processing terminal, users can choose different handheld terminals to use as needed, thereby meeting different diagnostic needs and enhancing the flexibility of the equipment. Moreover, the portable automotive diagnostic equipment consists only of a handheld terminal and a signal processing terminal, which has the advantages of small size and low cost. It effectively solves the problems of cumbersome operation, lack of flexibility, large size, and high cost of existing diagnostic equipment.

[0018] Preferably, the signal processing terminal further includes:

[0019] The OBD interface is used to connect the automotive diagnostic interface and the first data transceiver circuit, respectively.

[0020] The first power supply circuit is connected to the first data processing module, the first data transceiver circuit, the second data transceiver circuit, and the OBD interface respectively, and is used to convert the input power into the stable voltage and current required by the first data processing module, the first data transceiver circuit, the second data transceiver circuit, and the OBD interface.

[0021] The first USB interface is connected to the first power supply circuit.

[0022] Preferably, the first data processing module is a microprocessor.

[0023] Preferably, the second data transceiver circuit is a 2.4G wireless data transceiver circuit.

[0024] Preferably, the first USB interface is selected from USB Type-C interface.

[0025] Preferably, the handheld terminal further includes:

[0026] The touch screen is connected to the second data processing module and is used to display images and text decoded and processed by the second data processing module, as well as for human-computer interaction.

[0027] Preferably, the handheld terminal further includes:

[0028] The second power supply circuit, connected to the second data processing module, the third data transceiver circuit, and the touch screen, is used to convert the input power into the stable voltage and current required by the second data processing module, the third data transceiver circuit, and the touch screen.

[0029] Preferably, the handheld terminal further includes:

[0030] The second USB interface is connected to the second power circuit. The second USB interface supports connection to a computer to update the diagnostic solutions supported by the handheld terminal.

[0031] Preferably, the second USB interface is selected from the USB Type-C interface.

[0032] Preferably, the handheld terminal further includes:

[0033] Non-volatile power-loss memory is used to store user configuration and diagnostic scheme data;

[0034] A lithium battery is connected to the second USB interface, and the lithium battery is charged through the second USB interface;

[0035] A battery charge / discharge management circuit is connected to the lithium battery and the second power supply circuit.

[0036] Preferably, the second data processing module is a microprocessor.

[0037] Preferably, the third data transceiver circuit is a 2.4G wireless data transceiver circuit.

[0038] Preferably, the touch screen is a capacitive touch screen.

[0039] Preferably, the handheld terminal is about the same size as a mobile phone.

[0040] By designing the handheld terminal to the size of a regular mobile phone, it can be stored in the armrest box or placed on a car phone holder, making it convenient for users to observe data anytime and anywhere, and improving the portability of diagnostic equipment.

[0041] The beneficial effects of this utility model are:

[0042] This utility model discloses a portable automotive diagnostic device that combines a handheld terminal and a signal processing terminal, making it more portable. Users can perform automotive diagnostics anytime, anywhere, without relying on fixed diagnostic equipment or workplaces. The handheld terminal not only receives and displays the status data processed by the signal processing terminal but also allows users to select operations, making operation more intuitive and convenient, and improving diagnostic efficiency. The signal processing terminal is responsible for receiving and processing the vehicle's status data, ensuring the accuracy and reliability of the data; the processed data is then displayed to the user through the handheld terminal, allowing the user to more clearly understand the vehicle's status. Because the handheld terminal is connected to the signal processing terminal, users can choose different handheld terminals to use as needed, thereby meeting different diagnostic needs and enhancing the flexibility of the device. Moreover, the portable automotive diagnostic device consists only of a handheld terminal and a signal processing terminal, and has the advantages of small size and low cost. It effectively solves the problems of cumbersome operation, lack of flexibility, large size, and high cost of existing diagnostic equipment, and has promotional application value in the field of automotive diagnostic technology. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of the portable automotive diagnostic device of this utility model;

[0044] Figure 2 This is a schematic diagram of the signal processing terminal.

[0045] Figure 3 This is a schematic diagram of the handheld terminal.

[0046] Figure 4 A flowchart illustrating the practical use of portable automotive diagnostic equipment;

[0047] Figure 5 Flowchart for updating diagnostic solutions for handheld terminals;

[0048] Among them, 1-signal processing terminal, 11-first data processing module, 12-first data transceiver circuit, 13-second data transceiver circuit, 14-first antenna, 15-OBD interface, 16-first power supply circuit, 17-first USB interface; 2-handheld terminal, 21-second data processing module, 22-third data transceiver circuit, 23-second antenna, 24-touch screen, 25-second power supply circuit, 26-second USB interface, 27-non-volatile power-down memory, 28-lithium battery, 29-battery charge and discharge management circuit. Detailed Implementation

[0049] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0050] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0051] Numerous details are explored in the following description to provide a more thorough explanation of embodiments of this application; however, it will be apparent to those skilled in the art that embodiments of this application may be implemented without these specific details. Example

[0052] like Figures 1 to 3 As shown, a portable automotive diagnostic device includes:

[0053] Signal processing terminal 1 is used to connect to the vehicle diagnostic interface to receive and process vehicle status data;

[0054] The handheld terminal 2 is connected to the signal processing terminal 1 and is used to receive, process and display the status data processed by the signal processing terminal 1, and can be operated by the user.

[0055] Signal processing terminal 1 includes:

[0056] The first data processing module 11 is used to decode and re-encode the received vehicle status data, and to decode the received data from the handheld terminal 2, so as to configure the signal processing terminal 1 and send diagnostic data to the vehicle.

[0057] The first data transceiver circuit 12 is connected to the first data processing module 11 and is used to receive the vehicle's status data and send it to the first data processing module 11; wherein, the first data transceiver circuit 12 supports multiple data modes, and the mode selection is set by the user on the handheld terminal 2.

[0058] The second data transceiver circuit 13 is connected to the first data processing module 11 and is used to send the data processed by the first data processing module 11 to the handheld terminal 2 through the first antenna 14, and at the same time receive the data sent by the handheld terminal 2 through the first antenna 14.

[0059] Handheld terminal 2 includes:

[0060] The second data processing module 21 is used to decode the data received from the signal processing terminal 1; thereby displaying it on the touch screen 24 in an easy-to-understand way, such as pictures and text, so that users can interact with the computer by clicking on the touch screen 24, which is convenient and quick.

[0061] The third data transceiver circuit 22 is connected to the second data processing module 21 and is used to receive data processed by the signal processing terminal 1 through the second antenna 23 and send it to the second data processing module 21.

[0062] The first data transceiver circuit 12 supports multiple data modes, including but not limited to serial communication mode, parallel communication mode, analog signal mode, digital signal mode, high-speed data transmission mode, and low-power mode.

[0063] By combining a handheld terminal and a signal processing terminal, automotive diagnostic equipment has become more portable. Users can perform vehicle diagnostics anytime, anywhere, without relying on fixed diagnostic equipment or workplaces. The handheld terminal not only receives and displays the status data processed by the signal processing terminal but also allows users to select operations, making operation more intuitive and convenient, and improving diagnostic efficiency. The signal processing terminal is responsible for receiving and processing the vehicle's status data, ensuring the accuracy and reliability of the data; the processed data is then displayed to the user through the handheld terminal, allowing the user to more clearly understand the vehicle's status. Because the handheld terminal is connected to the signal processing terminal, users can choose different handheld terminals to use as needed, thereby meeting different diagnostic needs and enhancing the flexibility of the equipment. Moreover, the portable automotive diagnostic equipment consists only of a handheld terminal and a signal processing terminal, which has the advantages of small size and low cost. It effectively solves the problems of cumbersome operation, lack of flexibility, large size, and high cost of existing diagnostic equipment.

[0064] In some embodiments, the signal processing terminal 1 further includes:

[0065] The OBD interface 15 is connected to the vehicle diagnostic interface and the first data transceiver circuit 12 respectively; it can also provide power to the signal processing terminal 1.

[0066] The first power supply circuit 16 is connected to the first data processing module 11, the first data transceiver circuit 12, the second data transceiver circuit 13 and the OBD interface 15 respectively, and is used to convert the input power into the stable voltage and current required by the first data processing module 11, the first data transceiver circuit 12, the second data transceiver circuit 13 and the OBD interface 15.

[0067] The first USB interface 17 is connected to the first power supply circuit 16.

[0068] For example, the first data processing module 11 is a microprocessor.

[0069] For example, the second data transceiver circuit 13 is a 2.4G wireless data transceiver circuit.

[0070] For example, the first USB interface 17 is a USB Type-C interface that supports USB communication.

[0071] In some embodiments, the handheld terminal 2 includes:

[0072] The touch screen 24 is connected to the second data processing module 21 and is used to display images and text decoded and processed by the second data processing module 21, as well as for human-computer interaction.

[0073] In some embodiments, the handheld terminal 2 further includes:

[0074] The second power supply circuit 25 is connected to the second data processing module 21, the third data transceiver circuit 22 and the touch screen 24, and is used to convert the input power into the stable voltage and current required by the second data processing module 21, the third data transceiver circuit 22 and the touch screen 24.

[0075] In some embodiments, the handheld terminal 2 further includes:

[0076] The second USB interface 26 is connected to the second power circuit 25. The second USB interface 26 supports connection to a computer to update the diagnostic solutions supported by the handheld terminal 2, thereby adapting to the needs of different vehicle models.

[0077] For example, the second USB interface 26 is a USB Type-C interface that supports USB communication.

[0078] In some embodiments, the handheld terminal 2 further includes:

[0079] Non-volatile power-loss memory 27 is used to store user configuration and diagnostic scheme data;

[0080] The lithium battery 28 is connected to the second USB interface 26, and the lithium battery 28 is charged through the second USB interface 26.

[0081] The battery charging and discharging management circuit 29 is connected to the lithium battery 28 and the second power supply circuit 25.

[0082] For example, the second data processing module 21 is a microprocessor.

[0083] For example, the third data transceiver circuit 22 is a 2.4G wireless data transceiver circuit;

[0084] Among them, the 2.4G wireless data transceiver circuit supports the 2.4~2.5GHz ISM band, has modulation and demodulation functions, and can be configured with multiple channels to deal with interference problems. The handheld terminal 2 is equipped with a corresponding real-time operating system (such as freeRTOS) and supports an embedded graphical user interface (such as LVGL), which is user-friendly and easy to operate.

[0085] For example, the touch screen 24 is a capacitive touch screen.

[0086] In some embodiments, the handheld terminal 2 is about the size of a mobile phone.

[0087] By designing the handheld terminal to the size of a regular mobile phone, it can be stored in the armrest box or placed on a car phone holder, making it convenient for users to observe data anytime and anywhere, and improving the portability of diagnostic equipment.

[0088] like Figure 4 As shown, in the above embodiment, the portable automotive diagnostic device, during actual use, first connects the signal processing terminal 1 to the automotive diagnostic interface and turns on the car ignition switch to perform a self-test, initialize the diagnostic communication protocol and the 2.4G wireless communication protocol, and then connects to the handheld terminal 2. After successful connection, the signal processing terminal 1 decodes and re-encodes the received automotive status data before transmitting it to the handheld terminal 2. The handheld terminal 2 receives, processes, and displays the status data processed by the signal processing terminal 1 and allows the user to select operations. Simultaneously, the signal processing terminal 1 receives data sent by the handheld terminal 2 and decodes it for terminal configuration and to generate diagnostic data for the vehicle.

[0089] like Figure 5As shown, the operation method for updating the diagnostic scheme supported by handheld terminal 2 includes: confirming that handheld terminal 2 has sufficient power and is powered on, performing a self-test of handheld terminal 2, initializing the touch display and USB communication, connecting to the computer, and after successful connection, entering the diagnostic scheme update process to update the diagnostic scheme. After successful update, the new diagnostic scheme is saved; if the update fails, the diagnostic scheme update is performed again. If the connection to the computer fails, the 2.4G wireless communication protocol is initialized, and the signal processing terminal is connected. After successful connection, the user can select the diagnostic scheme through the display screen, decode and display the received data, and if the connection fails, the 2.4G wireless communication protocol is initialized until the connection is successful to update the diagnostic scheme supported by the handheld terminal.

[0090] In summary, this portable automotive diagnostic device, through the design of a combination of a handheld terminal and a signal processing terminal, makes automotive diagnostic equipment more portable. Users can perform automotive diagnostics anytime, anywhere, without relying on fixed diagnostic equipment or workplaces. The handheld terminal not only receives and displays the status data processed by the signal processing terminal but also allows users to select operations, making operation more intuitive and convenient, and improving diagnostic efficiency. The signal processing terminal is responsible for receiving and processing the vehicle's status data, ensuring the accuracy and reliability of the data; the processed data is then displayed to the user through the handheld terminal, allowing the user to more clearly understand the vehicle's status. Because the handheld terminal is connected to the signal processing terminal, users can choose different handheld terminals to use as needed, thereby meeting different diagnostic needs and enhancing the flexibility of the device. Moreover, the portable automotive diagnostic device consists only of a handheld terminal and a signal processing terminal, and has the advantages of small size and low cost. It effectively solves the problems of cumbersome operation, insufficient flexibility, large size, and high cost of existing diagnostic equipment, and has promotional application value in the field of automotive diagnostic technology.

[0091] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A portable automotive diagnostic device, characterized in that, include: The signal processing terminal (1) is used to connect to the vehicle diagnostic interface to receive and process vehicle status data; The handheld terminal (2) is connected to the signal processing terminal (1) and is used to receive, process and display the status data processed by the signal processing terminal (1) and to allow the user to select operations. The signal processing terminal (1) includes: The first data processing module (11) is used to decode and re-encode the received vehicle status data and to decode the received data from the handheld terminal (2), thereby enabling the configuration of the signal processing terminal (1) and the sending of diagnostic data to the vehicle. The first data transceiver circuit (12) is connected to the first data processing module (11) and is used to receive the vehicle's status data and send it to the first data processing module (11). The second data transceiver circuit (13) is connected to the first data processing module (11) and is used to send the data processed by the first data processing module (11) to the handheld terminal (2) through the first antenna (14) and at the same time receive the data sent by the handheld terminal (2) through the first antenna (14). The handheld terminal (2) includes: The second data processing module (21) is used to decode the data received after processing by the signal processing terminal (1); The third data transceiver circuit (22) is connected to the second data processing module (21) and is used to receive the data processed by the signal processing terminal (1) through the second antenna (23) and send it to the second data processing module (21).

2. The portable automotive diagnostic device according to claim 1, characterized in that, The signal processing terminal (1) further includes: The OBD interface (15) is connected to the vehicle diagnostic interface and the first data transceiver circuit (12), respectively. The first power supply circuit (16) is connected to the first data processing module (11), the first data transceiver circuit (12), the second data transceiver circuit (13) and the OBD interface (15) respectively, and is used to convert the input power into the stable voltage and current required by the first data processing module (11), the first data transceiver circuit (12), the second data transceiver circuit (13) and the OBD interface (15); The first USB interface (17) is connected to the first power supply circuit (16).

3. The portable automotive diagnostic device according to claim 2, characterized in that, The first data processing module (11) is a microprocessor; And / or, the second data transceiver circuit (13) is a 2.4G wireless data transceiver circuit; And / or, the first USB interface (17) is selected from the USB Type-C interface.

4. The portable automotive diagnostic device according to claim 1, characterized in that, The handheld terminal (2) also includes; The touch screen (24) is connected to the second data processing module (21) and is used to display the images and text decoded and processed by the second data processing module (21) and for human-computer interaction.

5. The portable automotive diagnostic device according to claim 4, characterized in that, The handheld terminal (2) also includes: The second power supply circuit (25) is connected to the second data processing module (21), the third data transceiver circuit (22) and the touch screen (24), and is used to convert the input power into the stable voltage and current required by the second data processing module (21), the third data transceiver circuit (22) and the touch screen (24).

6. The portable automotive diagnostic device according to claim 5, characterized in that, The handheld terminal (2) also includes: The second USB interface (26) is connected to the second power circuit (25). The second USB interface (26) supports connection to a computer to update the diagnostic scheme supported by the handheld terminal (2).

7. The portable automotive diagnostic device according to claim 6, characterized in that, The second USB interface (26) is selected from the USB Type-C interface.

8. The portable automotive diagnostic device according to claim 6, characterized in that, The handheld terminal (2) also includes: Non-volatile power-loss memory (27) is used to store data for user configuration and diagnostic schemes; A lithium battery (28) is connected to the second USB interface (26), and the lithium battery (28) is charged through the second USB interface (26); The battery charge and discharge management circuit (29) is connected to the lithium battery (28) and the second power supply circuit (25).

9. The portable automotive diagnostic device according to claim 5, characterized in that, The second data processing module (21) is a microprocessor; And / or, the third data transceiver circuit (22) is a 2.4G wireless data transceiver circuit; And / or, the touch screen (24) is a capacitive touch screen.

10. The portable automotive diagnostic device according to claim 1, characterized in that, The handheld terminal (2) is about the same size as a mobile phone.

Images