Circuit, conversion device and system for converting positioning signal into bus signal
By converting positioning signals into bus signals, the circuit solves the problems of positioning signal transmission speed and real-time performance in the field of autonomous driving, realizing high-speed transmission and real-time control, and providing reliable positioning and motion status signal support.
Patent Information
- Application Number
- CN202423304999.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing technology for transmitting positioning signals cannot meet the high-speed transmission and real-time control requirements of the autonomous driving field.
A circuit for converting positioning signals into bus signals was designed, including a processor module, a positioning and navigation module, a bus control module, an inertial measurement module, and a power supply module. The circuit outputs CAN or CANFD signals through a bus transceiver to achieve high-speed signal transmission and real-time control.
It provides reliable positioning signal data support for vehicle systems, autonomous driving applications, precision navigation, and fleet management, ensuring real-time and accurate transmission of position and motion status signals.
Smart Images
Figure CN223829322U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to signal conversion technology, specifically relating to a circuit, conversion device and system for converting positioning signals into bus signals. Background Technology
[0002] In the field of autonomous driving, positioning signals are one of the key components. However, existing positioning signals usually rely on traditional data transmission methods such as serial ports. This type of positioning signal cannot meet the needs of applications that require high-speed transmission and real-time control, especially autonomous driving technology, which requires high-speed and real-time data acquisition.
[0003] Therefore, solving the problem that the positioning signals output by the traditional methods of existing technology cannot meet the application requirements of high-speed transmission and real-time control is a technical problem that urgently needs to be solved in this field. Utility Model Content
[0004] In order to solve the technical problems mentioned in the background art, the present invention provides a circuit, conversion device and system for converting positioning signals into bus signals.
[0005] This utility model provides a circuit for converting positioning signals into bus signals, comprising:
[0006] Processor module;
[0007] A positioning and navigation module is electrically connected to the processor module to output a positioning signal to the processor module;
[0008] The bus control module is electrically connected to the processor module to receive positioning signals output from the processor module and to output corresponding bus signals.
[0009] Furthermore, it also includes: an inertial measurement module, electrically connected to the processor module, to output motion state signals to the processor module; and
[0010] The bus control module is also adapted to receive motion status signals from the processor module to output corresponding bus signals.
[0011] Furthermore, the bus control module includes: a bus transceiver; wherein
[0012] The TXD pin of the bus transceiver is electrically connected to the positioning signal and / or motion status signal output pins of the processor module; and
[0013] The bus transceiver outputs corresponding bus signals through the differential output pin CANL and the differential output pin CANH.
[0014] Furthermore, it also includes: a first power module, whose input terminal is electrically connected to an external power source to output a first voltage to the second power module;
[0015] The second power module has its input terminal connected to the output terminal of the first power module to output a second voltage, thereby powering the processor module, positioning and navigation module, bus control module and inertial measurement module.
[0016] Furthermore, it also includes a mode switching circuit, electrically connected to the processor module, to switch between system mode and user mode.
[0017] Furthermore, the positioning signal includes one or more of the following: GPS positioning signal, BeiDou positioning signal, or GLONASS positioning signal; and
[0018] The bus signals include: CAN signals or CANFD signals.
[0019] Furthermore, this utility model also provides a positioning signal conversion device, comprising: a processor module, a bus control module, and a positioning and navigation module; wherein...
[0020] The processor module is adapted to receive positioning signals collected by the positioning and navigation module, process the positioning signals, and then output corresponding bus signals through the bus control module.
[0021] Furthermore, it also includes: an inertial measurement module;
[0022] The processor module is also adapted to receive motion state signals acquired by the inertial measurement module, process the motion state signals, and output corresponding bus signals through the bus control module.
[0023] Furthermore, the bus control module includes: a bus transceiver; wherein
[0024] The bus transceiver is adapted to receive positioning signals and / or motion status signals output after being processed by the processor module, and to output the corresponding bus signals.
[0025] Furthermore, it also includes: a first power supply module, adapted to convert external power into a first voltage and output it to the second power supply module;
[0026] The second power supply module is adapted to convert the first voltage into a second voltage output, thereby supplying power to the processor module, positioning and navigation module, bus control module and inertial measurement module.
[0027] Furthermore, it also includes a mode switching circuit connected to the processor module to switch between system mode and user mode according to the mode instructions output by the processor module.
[0028] Furthermore, the positioning signal includes one or more of the following: GPS positioning signal, BeiDou positioning signal, or GLONASS positioning signal; and
[0029] The bus signals include: CAN signals or CANFD signals.
[0030] Thirdly, the present invention also provides a positioning signal conversion system, comprising: a circuit for converting positioning signals into bus signals as described above; a downstream device; and the downstream device being adapted to receive a bus signal output from the circuit for converting positioning signals into bus signals.
[0031] The beneficial effect of this utility model is that the circuit of this utility model that converts positioning signals into bus signals receives positioning signals collected from the positioning and navigation module through the processor module, and transmits the positioning signals to the bus control module, thereby outputting corresponding bus signals. The output bus signals can provide reliable positioning signal data support for vehicle systems, autonomous driving applications, precise navigation and fleet management. Attached Figure Description
[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0033] Figure 1 These are design block diagrams of circuits that convert positioning signals into bus signals, provided in some embodiments.
[0034] Figure 2 These are partial circuit diagrams of the processor module provided in some embodiments;
[0035] Figure 3 This is another part of the circuit diagram of the processor module provided in some embodiments;
[0036] Figure 4 These are partial circuit diagrams of the positioning and navigation module provided in some embodiments;
[0037] Figure 5 These are partial circuit diagrams of the inertial measurement module provided in some embodiments;
[0038] Figure 6 These are partial circuit diagrams of the bus control module provided in some embodiments;
[0039] Figure 7 These are partial circuit diagrams of the mode switching circuits provided in some embodiments;
[0040] Figure 8 This is a partial circuit diagram of the first power module provided in some embodiments;
[0041] Figure 9This is a partial circuit diagram of the second power module provided in some embodiments;
[0042] Figure 10 These are schematic diagrams of positioning signal conversion systems provided in some embodiments. Detailed Implementation
[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0044] Glossary
[0045] CAN (Controller Area Network): Controller Area Network;
[0046] CANFD (CAN with Flexible Data rate): Controller Area Network with Flexible Data Rate;
[0047] TXD (Transmit Data) pin: Data transmission pin;
[0048] CANH (Controller Area Network High) pin: CAN bus high-level differential signal line pin;
[0049] CANL (Controller Area Network Low) pin: CAN bus low-level differential signal line pin;
[0050] GPS (Global Positioning System): Global Positioning System.
[0051] GLONASS (Globalnaya Navigazionnaya Sputnikovaya Sistema): Global Navigation Satellite System.
[0052] like Figure 1 As shown, at least one embodiment provides a circuit for converting a positioning signal into a bus signal, comprising: a processor module; a positioning and navigation module electrically connected to the processor module to output a positioning signal to the processor module; and a bus control module electrically connected to the processor module to receive the positioning signal output from the processor module and output a corresponding bus signal.
[0053] Specifically, in this embodiment, the circuit that converts the positioning signal into a bus signal receives the positioning signal collected by the positioning and navigation module through the processor module, and transmits the positioning signal to the bus control module, thereby outputting the corresponding bus signal. The output bus signal can provide reliable positioning signal data support for vehicle systems, autonomous driving applications, precise navigation, and fleet management.
[0054] In some embodiments, the circuit for converting the positioning signal into a bus signal further includes: an inertial measurement module electrically connected to the processor module to output a motion state signal to the processor module; and the bus control module is further adapted to receive the motion state signal output from the processor module to output a corresponding bus signal.
[0055] Specifically, the processor module receives motion state signals collected from the inertial measurement module and transmits them to the bus control module, thereby outputting corresponding bus signals. The output bus signals can provide reliable motion state signal data support for vehicle systems, autonomous driving applications, precise navigation, and fleet management.
[0056] In some embodiments, such as Figure 6 As shown, the bus control module includes: a bus transceiver U6; wherein the TXD pin of the bus transceiver U6 is electrically connected to the positioning signal and / or motion status signal output pin of the processor module U1-1; and the bus transceiver outputs corresponding bus signals through the differential output pin CANL and the differential output pin CANH.
[0057] Specifically, the bus transceiver U6 may be, for example but not limited to, an MCP2558FD transceiver; the TXD pin of the MCP2558FD transceiver receives the processed positioning signal and / or motion status signal from the positioning signal and / or motion status signal output pin of the processor module, and outputs the bus signal through the differential output pins CANH and CANL. The MCP2558FD transceiver can output either CAN bus signals or CANFD bus signals.
[0058] In some embodiments, the positioning signal includes one or more of GPS positioning signal, BeiDou positioning signal or GLONASS positioning signal; and the bus signal includes CAN signal or CANFD signal.
[0059] In some embodiments, such as Figure 2 and Figure 3 As shown, the processor module includes an STM32H743IIT6 microcontroller.
[0060] In some embodiments, such as Figure 4As shown, the positioning and navigation module U2 includes an ATGM332D-6N positioning and navigation chip. Specifically, the ATGM332D-6N positioning and navigation chip can receive positioning signals from one or more of GPS, BeiDou, and GLONASS.
[0061] In some embodiments, such as Figure 5 As shown, the inertial measurement module U4 includes a BMI088 inertial measurement sensor, which integrates a gyroscope and an accelerometer, and is used to collect motion state information such as angular velocity and linear acceleration.
[0062] In some embodiments, such as Figure 8 and Figure 9 As shown, the circuit for converting the positioning signal into a bus signal further includes: a first power module U9, whose input terminal is electrically connected to an external power source to output a first voltage to a second power module U10; and a second power module U10, whose input terminal is connected to the output terminal of the first power module U9 to output a second voltage, thereby powering the processor module, the positioning and navigation module, the bus control module, and the inertial measurement module.
[0063] Specifically, the first power module U9 uses, for example but not limited to, an LT3995 voltage regulator chip to convert the external power supply into a first voltage (e.g., 5V) output; the second power module U10 uses, for example but not limited to, a SY8089AAAC DC-to-DC voltage regulator chip to convert the 5V voltage into a second voltage (e.g., 3.3V) output to meet the power supply requirements of the corresponding electronic components.
[0064] In some embodiments, such as Figure 7 As shown, the circuit that converts the positioning signal into a bus signal further includes a mode switching circuit, which is electrically connected to the processor module to switch between system mode and user mode.
[0065] Specifically, system mode refers to the default parameter settings, while user mode allows users to adjust the range parameters of the gyroscope and accelerometer according to actual requirements, and also allows them to choose to receive positioning information from one or more of GPS, BeiDou, and GLONASS according to actual needs.
[0066] Specifically, the mode switching circuit includes a switch SW2, and the second voltage also powers the mode switching circuit. Through this mode switching circuit, the positioning signal conversion device can output corresponding bus signals according to fixed parameters in system mode or user-set parameters in user mode, thereby adapting to different application scenarios and making the application more flexible.
[0067] Some embodiments also provide a positioning signal conversion device, including: a processor module, a bus control module, and a positioning and navigation module; wherein the processor module is adapted to receive positioning signals collected by the positioning and navigation module, process the positioning signals, and output corresponding bus signals through the bus control module.
[0068] Specifically, the positioning signal conversion device in this embodiment, through the cooperation of the processor module and the bus control module, can convert the positioning signal collected by the positioning and navigation module into a bus signal, providing reliable data support for vehicle systems, autonomous driving applications, precise navigation and fleet management, and ensuring that the system can obtain real-time and accurate location information.
[0069] In some embodiments, the positioning signal conversion device further includes an inertial measurement module; the processor module is also adapted to receive motion state signals collected by the inertial measurement module, process the motion state signals, and output corresponding bus signals through the bus control module.
[0070] Specifically, through the cooperation of the processor module and the bus control module, this embodiment can also convert the motion state signals collected by the inertial measurement module into bus signals, providing reliable data support for vehicle systems, autonomous driving applications, precision navigation and fleet management, and ensuring that the system can obtain real-time and accurate motion state signals.
[0071] In some embodiments, such as Figure 6 As shown, the bus control module U6 includes a bus transceiver; wherein the bus transceiver is adapted to receive positioning signals and / or motion status signals output after being processed by the processor module, and output the corresponding bus signals.
[0072] Specifically, the bus transceiver is, for example, but not limited to, a transceiver of model MCP2558FD; the TXD pin of the MCP2558FD transceiver receives the processed positioning signal and / or motion status signal (such as the FDCAN1_TX signal in this embodiment) from the positioning signal and / or motion status signal output pin of the processor module (in this embodiment, pins 123 are the positioning signal and / or motion status signal output pins), and outputs the bus signal through the differential output pins CANH and CANL.
[0073] In some embodiments, such as Figure 8 and Figure 9 As shown, it also includes: a first power module U9, adapted to convert external power into a first voltage and output it to a second power module U10; and a second power module U10, adapted to convert the first voltage into a second voltage and output it, thereby powering the processor module, the positioning and navigation module, the bus control module, and the inertial measurement module.
[0074] Specifically, the first power module uses, for example but not limited to, an LT3995 voltage regulator chip to convert the external power supply into a first voltage (e.g., 5V) output; the second power module uses, for example but not limited to, a SY8089AAAC DC-to-DC voltage regulator chip to convert the 5V voltage into a second voltage (e.g., 3.3V) output to meet the power supply requirements of the corresponding electronic components.
[0075] In some embodiments, such as Figure 7 As shown, the positioning signal conversion device further includes a mode switching circuit connected to the processor module to switch between system mode and user mode according to the mode command output by the processor module.
[0076] Specifically, the mode switching circuit includes a switch SW2. By switching the high and low levels of the switch SW2, this positioning signal conversion device can output corresponding bus signals according to fixed parameters in system mode or parameters set by the user in user mode, thereby adapting to different application scenarios and making the application more flexible.
[0077] Specifically, the positioning signal conversion device in this embodiment can simultaneously integrate a positioning and navigation module and an inertial measurement module. While monitoring the positioning signal, it can also monitor the motion state signal, thereby improving the dynamic state information of the monitored object in dynamic environments such as high-speed movement and sharp turns.
[0078] Specifically, the processing methods for positioning signals and motion state signals involved in the processor module are existing technologies and will not be elaborated here.
[0079] like Figure 10 As shown, some embodiments also provide a positioning signal conversion system, including: a circuit for converting positioning signals into bus signals as described above; a downstream device; and the downstream device being adapted to receive a bus signal output from the circuit for converting positioning signals into bus signals.
[0080] Specifically, the downstream devices include, but are not limited to, automotive ECUs.
[0081] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A circuit for converting positioning signals into bus signals, characterized in that, include: Processor module; A positioning and navigation module is electrically connected to the processor module to output a positioning signal to the processor module; The bus control module is electrically connected to the processor module to receive positioning signals output from the processor module and to output corresponding bus signals.
2. The circuit according to claim 1, characterized in that, Also includes: An inertial measurement module is electrically connected to the processor module to output motion state signals to the processor module; as well as The bus control module is also adapted to receive motion status signals from the processor module to output corresponding bus signals.
3. The circuit according to claim 1 or 2, characterized in that, The bus control module includes: a bus transceiver; wherein The TXD pin of the bus transceiver is electrically connected to the positioning signal and / or motion status signal output pins of the processor module; and The bus transceiver outputs corresponding bus signals through the differential output pin CANL and the differential output pin CANH.
4. The circuit according to claim 3, characterized in that, Also includes: The first power module has its input terminal electrically connected to an external power source to output a first voltage to the second power module; The second power module has its input terminal connected to the output terminal of the first power module to output a second voltage, thereby powering the processor module, positioning and navigation module, bus control module and inertial measurement module.
5. The circuit according to claim 3, characterized in that, Also includes: A mode switching circuit is electrically connected to the processor module to switch between system mode and user mode.
6. The circuit according to claim 4, characterized in that, The positioning signal includes one or more of the following: GPS positioning signal, BeiDou positioning signal, or GLONASS positioning signal; and The bus signals include: CAN signals or CANFD signals.
7. A positioning signal conversion device, characterized in that, include: Processor module, bus control module, and positioning and navigation module; in The processor module is adapted to receive positioning signals collected by the positioning and navigation module, process the positioning signals, and then output corresponding bus signals through the bus control module.
8. The positioning signal conversion device according to claim 7, characterized in that, Also includes: Inertial measurement module; The processor module is also adapted to receive motion state signals acquired by the inertial measurement module, process the motion state signals, and output corresponding bus signals through the bus control module.
9. The positioning signal conversion device according to claim 7 or 8, characterized in that, The bus control module includes: a bus transceiver; wherein The bus transceiver is adapted to receive positioning signals and / or motion status signals output after being processed by the processor module, and to output the corresponding bus signals.
10. The positioning signal conversion device according to claim 9, characterized in that, Also includes: The first power supply module is adapted to convert external power into a first voltage and output it to the second power supply module; The second power supply module is adapted to convert the first voltage into a second voltage output, thereby supplying power to the processor module, positioning and navigation module, bus control module and inertial measurement module.
11. The positioning signal conversion device according to claim 9, characterized in that, Also includes: A mode switching circuit, connected to the processor module, switches between system mode and user mode according to the mode instructions output by the processor module.
12. The positioning signal conversion device according to claim 11, characterized in that, The positioning signal includes one or more of the following: GPS positioning signal, BeiDou positioning signal, or GLONASS positioning signal; and The bus signals include: CAN signals or CANFD signals.
13. A positioning signal conversion system, characterized in that, include: The circuit for converting a positioning signal into a bus signal as described in any one of claims 1-6; Downstream equipment; as well as The downstream device is adapted to receive a bus signal output from the circuit that converts the positioning signal into a bus signal.