Vehicle-mounted OBD terminal

Abstract

The utility model provides a vehicle-mounted OBD terminal which comprises a shell, a circuit module arranged in the shell and a plug connected with the shell, and the plug is located on one side of the shell. The circuit module comprises a circuit board, a communication module, a positioning module, a control module and an air pressure sensor, the plug, the communication module, the positioning module, the control module and the air pressure sensor are all electrically connected with the circuit board, and the communication module, the positioning module and the air pressure sensor are all in electric signal connection with the control module; the shell is provided with an air vent, an inner cavity of the shell communicates with the internal space of the vehicle through the air vent, and the air pressure sensor is used for detecting air pressure changes in the vehicle. The vehicle-mounted OBD terminal not only has a positioning function, but also has a vehicle intrusion detection function.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted terminal equipment, in particular to a vehicle-mounted OBD terminal. Background Art

[0002] OBD (On Board Diagnostics) is a detection system extended for automobile fault diagnosis. The on-board OBD terminal is an OBD terminal installed inside the car. It can perform location query, electronic fence, speeding alarm, trajectory playback, vehicle fault diagnosis, OBD data detection and other services for the car. It can be used after the SIM card is installed.

[0003] Existing OBD terminals can generally realize the positioning function of the car. When the position of the car changes, the user can remotely obtain the location information of the car, thereby realizing the anti-theft and anti-loss function of the car. However, in some cases, if the user cannot know in time that the vehicle has been invaded, the OBD terminal may be destroyed or discarded after the car is invaded. At this time, the user can no longer obtain the location information of the car through the OBD terminal, resulting in the loss of the vehicle. Utility Model Content

[0004] The utility model aims to provide a vehicle-mounted OBD terminal, which not only has a positioning function but also has a vehicle intrusion detection function.

[0005] The utility model provides a vehicle-mounted OBD terminal, which is used to be arranged in a vehicle. The vehicle-mounted OBD terminal comprises a shell, a circuit module arranged in the shell and a plug connected to the shell, wherein the plug is located at one side of the shell; the circuit module comprises a circuit board, a communication module, a positioning module, a control module and an air pressure sensor, wherein the plug, the communication module, the positioning module, the control module and the air pressure sensor are all electrically connected to the circuit board, and the communication module, the positioning module and the air pressure sensor are all electrically connected to the control module; a vent is provided on the shell, and the inner cavity of the shell is communicated with the inner space of the vehicle through the vent, and the air pressure sensor is used to detect the air pressure change inside the vehicle.

[0006] In one feasible manner, the vehicle-mounted OBD terminal also includes an alarm module, which is electrically connected to the circuit board and electrically connected to the control module; the control module is used to control the alarm module to issue a corresponding alarm message when the air pressure sensor detects that the air pressure change value inside the vehicle is greater than a preset value.

[0007] In one achievable manner, the setting position of the vent corresponds to the setting position of the air pressure sensor.

[0008] In one achievable manner, the communication module, the positioning module, the control module and the air pressure sensor are all arranged on the circuit board.

[0009] In one achievable manner, a grille is provided in the vent, the grille is fixedly connected to the inner wall of the vent, and the grille does not seal the vent.

[0010] In one achievable manner, the grille includes a first blocking bar and a second blocking bar, the first blocking bar and the second blocking bar are vertically cross-arranged, and the opposite ends of the first blocking bar and the opposite ends of the second blocking bar are respectively fixedly connected to the inner wall of the vent.

[0011] In one feasible manner, the circuit module further includes an FPC antenna, on which a communication antenna module and a positioning antenna module are provided, the communication antenna module is electrically connected to the communication module, and the positioning antenna module is electrically connected to the positioning module.

[0012] In one achievable manner, the FPC antenna is fixed on the circuit board or the inner wall of the housing via a bracket.

[0013] In one feasible manner, the FPC antenna is provided with a first contact and a second contact, the first contact is electrically connected to the communication antenna module, and the second contact is electrically connected to the positioning antenna module; the circuit board is provided with a first ejector pin and a second ejector pin, the first ejector pin and the second ejector pin are both electrically connected to the circuit board, and the first ejector pin and the second ejector pin are electrically connected to the communication module and the positioning module, respectively; the first ejector pin and the second ejector pin are respectively abutted against the first contact and the second contact.

[0014] In one feasible manner, a plurality of pins are provided in the plug, and the pins are electrically connected to the circuit board; a first end of each of the pins is located in the plug, and a second end of each of the pins passes through a side wall of the plug and extends to a side of the plug close to the circuit board, and the second end of each of the pins is fixed to the circuit board by welding.

[0015] The vehicle-mounted OBD terminal provided by the utility model has a positioning function by providing a communication module and a positioning module. At the same time, a pressure sensor is provided in the shell of the vehicle-mounted OBD terminal, and a vent is provided on the shell. The inner cavity of the shell is connected to the internal space of the vehicle through the vent, that is, the pressure sensor is connected to the internal space of the vehicle through the vent; when the door of the vehicle is opened, the air pressure inside the vehicle will change, so that the pressure inside the shell will also change accordingly. When the pressure sensor detects the pressure change, the control module can send an alarm message to the user's mobile terminal device through the communication module, thereby realizing the vehicle intrusion detection alarm function of the vehicle-mounted OBD terminal, so that the user knows that the vehicle is invaded in time, and avoids the vehicle-mounted OBD terminal from being damaged or discarded and unable to track the location of the vehicle, thereby reducing the risk of the vehicle being stolen and lost, and improving the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the vehicle-mounted OBD terminal in an embodiment of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the explosion structure.

[0018] Figure 3 for Figure 2 Schematic diagram of the structure in another direction.

[0019] Figure 4 for Figure 2 Schematic diagram of the structure in another direction.

[0020] Figure 5 for Figure 2 Schematic diagram of the explosion structure after further decomposition.

[0021] Figure 6 for Figure 5 Schematic diagram of the structure in another direction.

[0022] Figure 7 It is a structural schematic diagram of the cover plate in the embodiment of the utility model.

[0023] Figure 8 Schematic diagram of control logic of the control module in the embodiment of the utility model. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] The directional words such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the specification and claims of the utility model are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional words should not limit the scope of protection claimed by the utility model.

[0027] like Figures 1 to 8 As shown, the vehicle-mounted OBD terminal provided by the embodiment of the utility model is used to be set in a vehicle. The vehicle-mounted OBD terminal includes a housing 1, a circuit module 2 arranged in the housing 1, and a plug 3 connected to the housing 1. The plug 3 is located on one side of the housing 1, and the plug 3 is fixedly connected to the housing 1 (it can be fixed by means of snap connection, etc.); the plug 3 is used to plug with the OBD interface on the vehicle. The circuit module 2 includes a circuit board 21, a communication module 22, a positioning module 23, a control module 24 and an air pressure sensor 25. The plug 3, the communication module 22, the positioning module 23, the control module 24 and the air pressure sensor 25 are all electrically connected to the circuit board 21, and the communication module 22, the positioning module 23 and the air pressure sensor 25 are all electrically connected to the control module 24. Among them, the communication module 22 plays the role of wireless communication, the positioning module 23 is used to receive positioning information, and wirelessly transmit the positioning information to the cloud platform (i.e., cloud server) through the communication module 22, and the user's mobile terminal device (such as the user's mobile phone, computer, etc.) interacts with the cloud platform to obtain positioning information (the specific functions and working principles of the communication module 22 and the positioning module 23 can be referred to the existing technology and will not be repeated here), and then obtain the real-time location information of the vehicle.

[0028] The air pressure sensor 25 is used to detect changes in the air pressure inside the vehicle (the air pressure sensor 25 detects changes in the air pressure inside the vehicle by detecting changes in the air pressure inside the housing 1); the housing 1 is provided with a vent 11, and the inner cavity of the housing 1 is connected to the internal space of the vehicle through the vent 11 (specifically, since the housing 1 is generally a sealed structure, it is necessary to provide a vent 11 on the housing 1 so that the air pressure inside the housing 1 changes along with the air pressure inside the vehicle, and the air pressure sensor 25 detects changes in the air pressure). When the control module 24 determines that the air pressure change value detected by the air pressure sensor 25 is greater than a preset value, it means that the vehicle door is opened (or the window is damaged, etc., causing changes in the air pressure inside the vehicle), the control module 24 sends an alarm message to the user's mobile terminal device through the communication module 22 (for example, sending a text message or a phone notification), and uploads the alarm message to the cloud platform at the same time, so that the user is aware of the vehicle being invaded in a timely manner, and the user can quickly take corresponding actions (for example, checking the vehicle status, alarming, etc.).

[0029] The vehicle-mounted OBD terminal provided in the embodiment of the utility model has a positioning function by providing a communication module 22 and a positioning module 23 . At the same time, an air pressure sensor 25 is provided in the shell 1 of the vehicle-mounted OBD terminal, and a vent 11 is provided on the shell 1. The inner cavity of the shell 1 is connected to the internal space of the vehicle through the vent 11, that is, the air pressure sensor 25 is connected to the internal space of the vehicle through the vent 11; when the door of the vehicle is opened, the air pressure inside the vehicle will change, so that the pressure inside the shell 1 will also change accordingly. When the air pressure sensor 25 detects the air pressure change (the OBD interface in the vehicle is generally set at the main driving position, that is, the vehicle-mounted OBD terminal is also set at the main driving position, so when the door is opened, the air pressure sensor 25 can detect the air pressure change), the control module 24 can send an alarm message to the user's mobile terminal device through the communication module 22, thereby realizing the vehicle intrusion detection alarm function of the vehicle-mounted OBD terminal, so that the user knows in time that the vehicle has been invaded, avoiding the vehicle-mounted OBD terminal from being damaged or discarded and unable to track the location of the vehicle, thereby reducing the risk of the vehicle being stolen and lost, and improving the safety of the vehicle.

[0030] As an implementation mode, the communication module 22, the positioning module 23, the control module 24 and the air pressure sensor 25 are all arranged on the circuit board 21, so as to facilitate the structural arrangement.

[0031] like Figure 8 As shown, as an implementation mode, the vehicle-mounted OBD terminal further includes an alarm module 4, which is electrically connected to the circuit board 21, and the alarm module 4 is electrically connected to the control module 24. The control module 24 is used to control the alarm module 4 to send a corresponding alarm message when the air pressure sensor 25 detects that the air pressure change value inside the vehicle is greater than a preset value.

[0032] Specifically, Figures 1 to 6 As shown, in this embodiment, the circuit board 21 is provided with an external interface 28, and the external interface 28 is plugged with an external plug 5; the alarm module 4 is arranged outside the housing 1, and the alarm module 4 is connected to the external plug 5, that is, the alarm module 4 is electrically connected to the circuit board 21 through the external plug 5 and the external interface 28. Such a configuration can adapt to different alarm modules 4 and facilitate the assembly of the alarm module 4. In this embodiment, the alarm module 4 is a sound alarm device, which can emit a sound alarm message (such as a buzzer) to warn the intruder; of course, the alarm module 4 can also be a light alarm device, etc. In other embodiments, the alarm module 4 can also be arranged in the housing 1.

[0033] As an embodiment, the setting position of the vent 11 corresponds to the setting position of the air pressure sensor 25 ( Figures 2 to 6 The air pressure sensor 25 is not shown in the figure, so that the air pressure sensor 25 can detect the air pressure change more sensitively. Of course, in other embodiments, the setting position of the vent 11 and the setting position of the air pressure sensor 25 may not correspond, as long as the air pressure sensor 25 can detect the air pressure change in the housing 1.

[0034] like Figure 3 and Figure 7 As shown, as an embodiment, a grille 12 is provided inside the vent 11, the grille 12 is fixedly connected to the inner wall of the vent 11, and the grille 12 does not seal the vent 11 (i.e., the grille 12 only covers part of the vent 11). Since the vent 11 is provided on the housing 1, the housing 1 is in an unsealed state, and by providing the grille 12 inside the vent 11, the grille 12 can prevent foreign matter from entering the housing 1, so as to prevent the foreign matter from damaging the circuit module 2 inside the housing 1; at the same time, the grille 12 does not seal the vent 11, so as not to affect the ventilation function of the vent 11.

[0035] like Figure 3 and Figure 7 As shown, as an embodiment, the grille 12 includes a first blocking bar 121 and a second blocking bar 122, the first blocking bar 121 and the second blocking bar 122 are vertically cross-arranged, and the opposite ends of the first blocking bar 121 and the opposite ends of the second blocking bar 122 are respectively fixedly connected to the inner wall of the vent 11.

[0036] Specifically, in this embodiment, the number of the first barrier bar 121 and the second barrier bar 122 are both one, and the two are vertically crossed to form a "cross" structure. In other embodiments, the number of the first barrier bar 121 and the second barrier bar 122 can also be multiple, multiple first barrier bars 121 are arranged in parallel and spaced, multiple second barrier bars 122 are arranged in parallel and spaced, and multiple first barrier bars 121 are respectively arranged vertically and cross-arranged with multiple second barrier bars 122, that is, in this case, the grille 12 forms a grid structure to achieve a better barrier effect.

[0037] like Figures 2 to 7 As shown, as an embodiment, the housing 1 includes a main housing 10A and a cover plate 10B, and the main housing 10A is fixedly connected to the cover plate 10B. The vent 11 and the grille 12 are both arranged on the cover plate 10B.

[0038] like Figures 2 to 6 and Figure 8 As shown, as an embodiment, the circuit module 2 also includes an FPC antenna 26, on which a communication antenna module 261 and a positioning antenna module 262 are provided, and the communication antenna module 261 and the positioning antenna module 262 are independent of each other (i.e., they are not connected to or interfere with each other); the communication antenna module 261 is electrically connected to the communication module 22, and the positioning antenna module 262 is electrically connected to the positioning module 23. The communication antenna module 261 is used to send and receive communication information, and the positioning antenna module 262 is used to receive positioning information.

[0039] Specifically, this embodiment integrates the communication antenna module 261 and the positioning antenna module 262 on the FPC antenna 26, thereby facilitating the structural layout and facilitating the miniaturization design of the OBD terminal (the existing vehicle-mounted OBD terminal generally sets the positioning antenna and the communication antenna separately, which is not convenient for spatial layout). In this embodiment, the communication module 22 is a 4G network communication module, and the positioning module 23 is a GPS / BD dual positioning module, that is, the positioning module 23 is compatible with GPS positioning and Beidou positioning. The communication antenna module 261 is a 4G antenna module, and the positioning antenna module 262 is a GPS / BD dual-channel antenna module.

[0040] like Figures 2 to 6 As shown, as an implementation, the FPC antenna 26 is fixed to the circuit board 21 through the bracket 6 (of course, in other embodiments, the FPC antenna 26 can also be fixed to the inner wall of the housing 1 through the bracket 6). Specifically, the FPC antenna 26 is attached to the surface of the bracket 6 (specifically, the FPC antenna 26 can be adhered to the surface of the bracket 6 by glue), and the bracket 6 is screwed to the circuit board 21, so as to facilitate assembly.

[0041] like Figures 2 to 6As shown, as an embodiment, the FPC antenna 26 is provided with a first contact 263 and a second contact 264, and the first contact 263 and the second contact 264 are arranged at intervals; the first contact 263 is electrically connected to the communication antenna module 261, and the second contact 264 is electrically connected to the positioning antenna module 262. The circuit board 21 is provided with a first ejector pin 211 and a second ejector pin 212, and the first ejector pin 211 and the second ejector pin 212 are both electrically connected to the circuit board 21, and the first ejector pin 211 and the second ejector pin 212 are electrically connected to the communication module 22 and the positioning module 23, respectively. The first ejector pin 211 and the second ejector pin 212 are respectively in contact with the first contact 263 and the second contact 264, that is, the first ejector pin 211 and the second ejector pin 212 are respectively electrically connected to the first contact 263 and the second contact 264, thereby realizing the electrical signal connection between the communication antenna module 261 and the communication module 22, and the electrical signal connection between the positioning antenna module 262 and the positioning module 23.

[0042] like Figures 2 to 6 As shown, as an embodiment, a plurality of pins 31 are provided in the plug 3, and the pins 31 are electrically connected to the circuit board 21. The plug 3 is a structure with an opening at one end and a side wall at the other end. The opposite ends of the pins 31 are respectively a first end and a second end. The first end of each pin 31 is located in the plug 3, and the second end of each pin 31 passes through the side wall of the plug 3 and then extends to the side of the plug 3 near the circuit board 21 (the pin 31 is fixed on the side wall of the plug 3), and the second end of each pin 31 is fixed to the circuit board 21 by welding. In this way, the electrical connection between the pins 31 and the circuit board 21 and the fixed connection between the plug 3 and the circuit board 21 can be achieved, which is convenient for assembly.

[0043] like Figures 2 to 6 As shown, as an embodiment, there are two circuit boards 21, and the two circuit boards 21 are stacked and arranged at intervals along the thickness direction; the electronic components in the circuit module 2 (including the communication module 22, the positioning module 23, the control module 24 and the air pressure sensor 25, etc.) are partially arranged on one of the circuit boards 21, and the other part is arranged on the other circuit board 21. The multiple pins 31 in the plug 3 are arranged in two rows, one row of pins 31 is welded and fixed to one of the circuit boards 21, and the other row of pins 31 is welded and fixed to the other circuit board 21.

[0044] like Figures 2 to 6 As shown, as an implementation mode, the circuit board 21 is further provided with a SIM card slot 27, and the SIM card slot 27 is used to insert a SIM card. The circuit board 21 is also provided with an interactive interface 29, and an external device can be connected to the circuit module 2 through the interactive interface 29 to obtain data, configure product parameters, and upgrade the OBD terminal.

[0045] As an embodiment, a battery (not shown) is also provided in the housing 1, and the battery is electrically connected to the circuit board 21. The battery is used to power the vehicle OBD terminal after the vehicle OBD terminal loses vehicle power supply, and can be charged when the vehicle is powered on.

[0046] Specifically, the specific working process of the vehicle-mounted OBD terminal is: when in use, the plug 3 is plugged into the corresponding OBD interface in the vehicle. After the vehicle is started, the circuit board 21 is electrically connected to the battery of the vehicle through the plug 3, thereby supplying power to the vehicle-mounted OBD terminal and charging the battery; when the vehicle is turned off, the vehicle-mounted OBD terminal loses power supply from the vehicle, and the battery now supplies power to the vehicle-mounted OBD terminal.

[0047] The vehicle-mounted OBD terminal provided by the embodiment of the utility model has a positioning function by providing a communication module 22 and a positioning module 23. At the same time, a pressure sensor 25 is provided in the housing 1 of the vehicle-mounted OBD terminal, and a vent 11 is provided on the housing 1. The inner cavity of the housing 1 is connected to the internal space of the vehicle through the vent 11, that is, the pressure sensor 25 is connected to the internal space of the vehicle through the vent 11; when the door of the vehicle is opened, the air pressure inside the vehicle will change, so that the pressure inside the housing 1 will also change accordingly. When the pressure sensor 25 detects the pressure change, the control module 24 can send an alarm message to the user's mobile terminal device through the communication module 22, thereby realizing the vehicle intrusion detection alarm function of the vehicle-mounted OBD terminal, so that the user can know in time that the vehicle is invaded, and avoid the vehicle-mounted OBD terminal being damaged or discarded and unable to track the location of the vehicle, thereby reducing the risk of the vehicle being stolen and lost, and improving the safety of the vehicle.

[0048] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vehicle-mounted OBD terminal, used to be arranged in a vehicle, characterized in that: The vehicle-mounted OBD terminal includes a shell, a circuit module arranged in the shell and a plug connected to the shell, and the plug is located on one side of the shell; the circuit module includes a circuit board, a communication module, a positioning module, a control module and an air pressure sensor, and the plug, the communication module, the positioning module, the control module and the air pressure sensor are all electrically connected to the circuit board, and the communication module, the positioning module and the air pressure sensor are all connected to the control module by electrical signals; a vent is provided on the shell, and the inner cavity of the shell is connected to the internal space of the vehicle through the vent, and the air pressure sensor is used to detect changes in air pressure inside the vehicle.

2. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The vehicle-mounted OBD terminal also includes an alarm module, which is electrically connected to the circuit board and electrically connected to the control module; the control module is used to control the alarm module to issue a corresponding alarm message when the air pressure sensor detects that the air pressure change value inside the vehicle is greater than a preset value.

3. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The vent is disposed at a position corresponding to the air pressure sensor.

4. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The communication module, the positioning module, the control module and the air pressure sensor are all arranged on the circuit board.

5. The vehicle-mounted OBD terminal according to claim 1, characterized in that: A grille is provided in the vent, the grille is fixedly connected to the inner wall of the vent, and the grille does not seal the vent.

6. The vehicle-mounted OBD terminal according to claim 5, characterized in that: The grille includes a first blocking bar and a second blocking bar, the first blocking bar and the second blocking bar are vertically cross-arranged, and opposite ends of the first blocking bar and opposite ends of the second blocking bar are respectively fixedly connected to the inner wall of the vent.

7. The vehicle-mounted OBD terminal according to claim 1, characterized in that: The circuit module also includes an FPC antenna, on which a communication antenna module and a positioning antenna module are arranged, the communication antenna module is electrically connected to the communication module, and the positioning antenna module is electrically connected to the positioning module.

8. The vehicle-mounted OBD terminal according to claim 7, characterized in that: The FPC antenna is fixed on the circuit board or the inner wall of the housing through a bracket.

9. The vehicle-mounted OBD terminal according to claim 7, characterized in that: The FPC antenna is provided with a first contact and a second contact, the first contact is electrically connected to the communication antenna module, and the second contact is electrically connected to the positioning antenna module; the circuit board is provided with a first ejector pin and a second ejector pin, the first ejector pin and the second ejector pin are both electrically connected to the circuit board, and the first ejector pin and the second ejector pin are electrically connected to the communication module and the positioning module respectively; the first ejector pin and the second ejector pin are respectively in contact with the first contact and the second contact.

10. The vehicle-mounted OBD terminal according to any one of claims 1 to 9, characterized in that: A plurality of pins are arranged in the plug, and the pins are electrically connected to the circuit board; a first end of each of the pins is located in the plug, and a second end of each of the pins passes through a side wall of the plug and extends to a side of the plug close to the circuit board, and the second end of each of the pins is fixed to the circuit board by welding.

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