Integrated vehicle-mounted terminal based on high-precision positioning and wireless communication

Abstract

The invention discloses an integrated vehicle-mounted terminal based on high-precision positioning and wireless communication, which is characterized in that a high-precision positioning service and a wireless communication service are integrated on a TBOX to form the vehicle-mounted terminal, and the vehicle-mounted terminal provides the high-precision positioning service by means of a satellite and a cloud end. The vehicle-mounted terminal comprises an MCU processor, an MPU processor, a wireless communication chip and a high-precision positioning chip. The MCU processor is used for being responsible for sending and receiving related ECU signals of the whole vehicle; the MPU processor is used for being responsible for high computing power processing work of the application layer. According to the integrated vehicle-mounted terminal based on high-precision positioning and wireless communication provided by the invention, the cost of a single vehicle is reduced, and the problem of interactivity between the TBOX and the high-precision positioning terminal PBOX is solved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle networking and intelligent driving technology, and in particular to an integrated vehicle-mounted terminal based on high-precision positioning and wireless communication. Background Art

[0002] TBOX wireless communication terminal has become a standard electronic control unit ECU in automobiles. Its main function is to provide internal vehicle connection interaction and external world communication functions. The specific functions are as follows: infotainment, vehicle diagnosis, remote control, air flashing, data collection, laws and regulations. For these functions, TBOX has two main applications, one is navigation and positioning services, and the other is wireless communication services. Infotainment functions include navigation and positioning services and wireless communication services, while vehicle diagnosis, remote control, control flashing, data collection, and laws and regulations mainly include wireless communication services and other related application services.

[0003] However, the navigation and positioning services of TBOX on the market are mainly ordinary positioning, and the positioning accuracy is still around 20 meters, which cannot meet the market's development trend of high-precision positioning. The accuracy of high-precision positioning is basically required to be at the millimeter or centimeter level. The current high-precision positioning terminal PBOX is basically an independent on-board electronic control unit, and TBOX is required to transmit some relevant positioning information to the high-precision positioning terminal PBOX through wireless communication services. This is questionable not only in terms of cost but also in terms of interaction complexity.

[0004] In the prior art, see Figure 1 , ordinary navigation positioning and wireless communication is an electronic control unit TBOX, and high-precision positioning is another electronic control unit PBOX. Both electronic control units TBOX and PBOX have positioning functions, but there are differences in positioning accuracy. Currently, there are vehicles on the market that have both TBOX and PBOX, so there are two sets of GPS antennas, and the functions of MCU microcontrollers and MPU microprocessors are similar, which results in cost waste of hardware resources. PBOX requires TBOX to transmit the relevant high-precision positioning information obtained from the cloud to itself through wireless communication services, and PBOX does not have the function of independently providing application services, which also requires TBOX support and participation. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an integrated vehicle-mounted terminal based on high-precision positioning and wireless communication in view of the deficiencies in the prior art. The present invention reduces the cost of a single vehicle and solves the problem of interactivity between TBOX and the high-precision positioning terminal PBOX by integrating high-precision positioning services and wireless communication services on TBOX.

[0006] To achieve the above-mentioned purpose, according to one aspect of the present invention, a vehicle-mounted terminal based on high-precision positioning and wireless communication integration is provided, and high-precision positioning service and wireless communication service are integrated on TBOX to form the vehicle-mounted terminal, and the vehicle-mounted terminal provides high-precision positioning service by satellite and cloud, and the vehicle-mounted terminal includes: MCU processor, MPU processor, wireless communication chip, high-precision positioning chip;

[0007] The MCU processor is responsible for sending and receiving vehicle-related ECU signals;

[0008] The MPU processor is responsible for high-computing processing at the application layer.

[0009] In the above solution, the vehicle terminal based on high-precision positioning and wireless communication integration also includes a common positioning chip. According to the needs of the specific project application, there may be only a high-precision positioning chip, or both a high-precision positioning chip and a common positioning chip.

[0010] In the above scheme, the MCU processor includes a wheel speed signal processing module and a vehicle signal processing module;

[0011] The vehicle signal processing module is used to process vehicle-related ECU signals;

[0012] The wheel speed signal processing module is used to process the signal of the wheel speed sensor.

[0013] In the above solution, the MPU processor includes a general positioning module, a high-precision positioning module, a cloud communication module, and a remote correlation module;

[0014] The general positioning module is responsible for general navigation positioning and inertial navigation logic work;

[0015] The high-precision positioning module is responsible for high-order intelligent driving and high-precision navigation positioning, and the inertial navigation also participates in fusion positioning in parallel;

[0016] The cloud communication module and the remote related module are responsible for data collection, remote control, remote upgrade, and remote diagnosis. The original logic solution based on inertial navigation of PBOX is also synchronously transplanted to the vehicle terminal for implementation. The vehicle terminal also supports the wheel speed signal to participate in the high-precision positioning algorithm, which can improve the positioning accuracy. In the overall code framework design, the module design of general positioning, high-precision positioning, inertial navigation positioning, and wheel speed positioning is realized through configuration, realizing platform design.

[0017] In the above solution, the vehicle terminal based on high-precision positioning and wireless communication integration also includes a six-axis sensor. In the present invention, if the relevant signals of the vehicle terminal based on high-precision positioning and wireless communication integration can be transmitted and meet the hardware design requirements, and can provide support for the implementation of inertial navigation, the six-axis sensor can be omitted, otherwise the six-axis sensor needs to be included.

[0018] In the above solution, the integrated vehicle terminal based on high-precision positioning and wireless communication realizes information interaction with the cloud through 4G / 5G wireless communication services; wherein the cloud includes a high-precision cloud service platform and an enterprise TSP cloud platform.

[0019] In the above scheme, the vehicle-mounted terminal based on high-precision positioning and wireless communication integration receives RTK differential data from the high-precision cloud service platform through wireless communication, which is used for high-precision centimeter-level and millimeter-level positioning.

[0020] In the above scheme, the vehicle-mounted terminal integrated with high-precision positioning and wireless communication interacts with the enterprise TSP cloud platform, including data collection and remote related applications; the vehicle-mounted terminal integrated with high-precision positioning and wireless communication sends the high-precision positioning data to the enterprise TSP cloud platform, which can perform data analysis, mining and secondary value-added business application development.

[0021] In the above solution, the mobile application interacts with the vehicle terminal based on high-precision positioning and wireless communication integration through the enterprise TSP cloud platform to realize vehicle information display, remote control, and high-level intelligent driving application services.

[0022] In the above solution, the mobile application includes APP in the mobile phone and tablet computer.

[0023] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0024] 1. The present invention provides an integrated vehicle terminal based on high-precision positioning and wireless communication. The vehicle terminal integrates high-precision positioning services and wireless communication services on TBOX, which not only reduces the cost of a single vehicle, but also solves the problem of interactivity between TBOX and the high-precision positioning terminal PBOX. At the same time, it also meets the planning of the domain control integration solution of the electronic and electrical architecture, adapts to the market trend of high-precision intelligent driving, and the hardware reservation and low coupling of software ensure the scalability and flexible adaptation of the product. In addition, the present invention can meet the needs of different vehicle models and is conducive to the design of flexible configuration solutions for the entire vehicle.

[0025] 2. The present invention integrates the high-precision positioning service and wireless communication service on the PBOX on the TBOX. In terms of the integrated solution, since there is no PBOX, the unit cost of the PBOX hardware is reduced; since there is no PBOX, there is no GPS antenna connected to it, which reduces the unit cost of the GPS antenna; the PBOX software development cost is reduced. Although the TBOX development workload increases, the overall cost is reduced; since there is no PBOX and one GPS antenna is reduced, the weight of the entire vehicle is reduced, achieving a lightweight design. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Also, throughout the accompanying drawings, the same reference figures are used to represent the same components. In the drawings:

[0027] Figure 1 It is a schematic diagram of the structure of the electronic control units TBOX and PBOX.

[0028] Figure 2 The present invention is a schematic diagram of the structure of an integrated vehicle terminal based on high-precision positioning and wireless communication in an embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the interaction between the integrated vehicle terminal and the cloud and mobile applications in an embodiment of the present invention.

[0030] Figure 4 The present invention is a schematic diagram of the structure of an integrated vehicle terminal based on high-precision positioning and wireless communication, including a common positioning chip and a six-axis sensor in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] It should be understood that the size of the serial numbers of the steps in the embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0033] Example 1

[0034] On the one hand, the present application embodiment provides a vehicle-mounted terminal based on high-precision positioning and wireless communication integration. Figure 2, integrating high-precision positioning services and wireless communication services on TBOX to form a vehicle-mounted terminal. The vehicle-mounted terminal relies on satellites and the cloud to provide high-precision positioning services. The vehicle-mounted terminal includes: MCU processor, MPU processor, wireless communication chip, and high-precision positioning chip;

[0035] The MCU processor is responsible for sending and receiving vehicle-related ECU signals;

[0036] The MPU processor is responsible for high-computing processing tasks at the application layer.

[0037] In the embodiment of the present application, it can be understood that the MCU processor includes a wheel speed signal processing module and a vehicle signal processing module;

[0038] The vehicle signal processing module is used to process vehicle-related ECU signals;

[0039] The wheel speed signal processing module is used to process the signal from the wheel speed sensor.

[0040] Specifically, the MPU processor includes a general positioning module, a high-precision positioning module, a cloud communication module, and a remote correlation module; the functions of each module are as follows:

[0041] The general positioning module is responsible for general navigation positioning and inertial navigation logic work;

[0042] The high-precision positioning module is responsible for high-level intelligent driving and high-precision navigation positioning, and the inertial navigation also participates in fusion positioning in parallel;

[0043] The cloud communication module and remote related modules are responsible for data collection, remote control, remote upgrade and remote diagnosis.

[0044] In particular, in terms of software design, the original inertial navigation-based logic scheme of PBOX is also synchronously transplanted to the vehicle-mounted terminal in the embodiment of the present application for implementation. The vehicle-mounted terminal also supports the wheel speed signal to participate in the high-precision positioning algorithm, which can improve the positioning accuracy; and in the overall code framework design, it can also be configured to realize the module design of ordinary positioning, high-precision positioning, inertial navigation positioning, and wheel speed positioning, thereby realizing platform design.

[0045] In an embodiment of the present application, an integrated vehicle terminal based on high-precision positioning and wireless communication realizes information interaction with the cloud through 4G / 5G wireless communication services; specifically, in an embodiment of the present application, the cloud includes a high-precision cloud service platform and an enterprise TSP cloud platform.

[0046] It can be understood that the vehicle-mounted terminal integrated based on high-precision positioning and wireless communication receives RTK differential data from the high-precision cloud service platform through wireless communication for high-precision centimeter and millimeter positioning.

[0047] Similarly, the vehicle-mounted terminal integrated with high-precision positioning and wireless communication can also exchange information with the enterprise TSP cloud platform. The content of the information interaction includes data collection and some remote-related applications; and the vehicle-mounted terminal integrated with high-precision positioning and wireless communication can also send high-precision positioning data to the enterprise TSP cloud platform for data analysis, mining and secondary value-added business application development.

[0048] In some specific application scenarios of the embodiments of this application, see Figure 3 Mobile applications can interact with vehicle terminals based on high-precision positioning and wireless communication through the enterprise TSP cloud platform, thereby realizing vehicle information display, remote control, and high-level intelligent driving application services. It is understandable that mobile applications include but are not limited to related application APPs in mobile phones and tablets.

[0049] Example 2

[0050] The principles and steps of the embodiment of the present application are basically the same as those of Example 1, the difference being that an integrated vehicle-mounted terminal based on high-precision positioning and wireless communication also includes: an ordinary positioning chip; that is, the integrated vehicle-mounted terminal based on high-precision positioning and wireless communication in the embodiment of the present application has both a high-precision positioning chip and an ordinary positioning chip.

[0051] Based on the content of the above embodiment, as an optional embodiment, a vehicle-mounted terminal based on high-precision positioning and wireless communication integration further includes: a six-axis sensor; the six-axis sensor can provide support for the implementation of inertial navigation. Figure 4 The figure shows a schematic diagram of the structure of an integrated vehicle terminal based on high-precision positioning and wireless communication, including a common positioning chip and a six-axis sensor.

[0052] It should be pointed out that, according to the needs of implementation, the various steps described in this application can be divided into more steps, or two or more steps or partial operations of the steps can be combined into a new step to achieve the purpose of the present invention.

[0053] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated vehicle terminal based on high-precision positioning and wireless communication, characterized in that: The high-precision positioning service and the wireless communication service are integrated on the TBOX to form the vehicle-mounted terminal. The vehicle-mounted terminal provides high-precision positioning services by relying on satellites and the cloud. The vehicle-mounted terminal includes: an MCU processor, an MPU processor, a wireless communication chip, and a high-precision positioning chip; The MCU processor is responsible for sending and receiving vehicle-related ECU signals; The MPU processor is responsible for high-computing processing at the application layer.

2. According to claim 1, the vehicle-mounted terminal based on high-precision positioning and wireless communication integration is characterized in that: The integrated vehicle terminal based on high-precision positioning and wireless communication also includes a common positioning chip.

3. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 1 is characterized in that: The MCU processor includes a wheel speed signal processing module and a vehicle signal processing module; The vehicle signal processing module is used to process vehicle-related ECU signals; The wheel speed signal processing module is used to process the signal of the wheel speed sensor.

4. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 1 is characterized in that: The MPU processor includes a general positioning module, a high-precision positioning module, a cloud communication module, and a remote correlation module; The general positioning module is responsible for general navigation positioning and inertial navigation logic work; The high-precision positioning module is responsible for high-order intelligent driving and high-precision navigation positioning, and the inertial navigation also participates in fusion positioning in parallel; The cloud communication module and the remote related module are responsible for data collection, remote control, remote upgrade and remote diagnosis.

5. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 1 is characterized in that: The integrated vehicle terminal based on high-precision positioning and wireless communication also includes a six-axis sensor.

6. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 1 is characterized in that: The integrated vehicle terminal based on high-precision positioning and wireless communication realizes information interaction with the cloud through 4G / 5G wireless communication services; wherein the cloud includes a high-precision cloud service platform and an enterprise TSP cloud platform.

7. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 6 is characterized in that: The vehicle-mounted terminal based on high-precision positioning and wireless communication integration receives RTK differential data from the high-precision cloud service platform through wireless communication for high-precision centimeter-level and millimeter-level positioning.

8. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 6 is characterized in that: The vehicle terminal integrated with high-precision positioning and wireless communication interacts with the enterprise TSP cloud platform, including data collection and remote related applications; the vehicle terminal integrated with high-precision positioning and wireless communication sends the high-precision positioning data to the enterprise TSP cloud platform.

9. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 6 is characterized in that: The mobile application interacts with the vehicle terminal based on high-precision positioning and wireless communication integration through the enterprise TSP cloud platform.

10. The vehicle-mounted terminal based on high-precision positioning and wireless communication integration according to claim 6, characterized in that: The mobile applications include APPs in mobile phones and tablet computers.

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