CN217863996U - Vehicle sensor data distribution system - Google Patents
Vehicle sensor data distribution system Download PDFInfo
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- CN217863996U CN217863996U CN202222270455.8U CN202222270455U CN217863996U CN 217863996 U CN217863996 U CN 217863996U CN 202222270455 U CN202222270455 U CN 202222270455U CN 217863996 U CN217863996 U CN 217863996U
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Abstract
The utility model discloses a vehicle sensor data distribution system, including first ethernet chip and second ethernet chip, first ethernet chip is connected with main operation control module, the second ethernet chip is connected with redundant operation control module, first ethernet chip, different sensors are still connected respectively to the second ethernet chip, the second ethernet chip still is connected with first ethernet chip in order to exchange data, then first ethernet chip, the sensing data of all sensors can be received to the second ethernet chip, first ethernet chip exports received sensing data to main operation control module, the second ethernet chip exports received sensing data to redundant operation control module, therefore main operation control module and redundant operation control module can all receive the sensing data of all sensors, realize the distribution of sensing data, and, the data transmission of one of them sensor breaks down, do not influence the data transmission of other sensors yet, high reliability.
Description
Technical Field
The utility model relates to a vehicle data processing technology field especially relates to a vehicle sensor data distribution system.
Background
With the development and popularization of intelligent vehicles with L3-L4-level auxiliary driving systems or pure unmanned automatic driving systems, an automobile auxiliary driving or automatic driving module is often provided with an independent redundant operation module besides a main operation control module, and due to cost reasons, vehicle manufacturers cannot independently configure a set of independent sensors for the main operation control module and the redundant operation module, so that data of the sensors need to be distributed.
At present, different types of sensors, such as a display device, a vehicle-mounted ethernet camera and a laser radar, are generally connected in series through optical fibers to form a ring network for data transmission, but if a communication fault occurs in one node in the ring network, the whole vehicle-mounted network is broken down to stop working, and the high reliability requirement of an intelligent vehicle cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vehicle sensor data distribution system to solve the sensor series connection and form the problem that the high reliability requirement of on-vehicle network paralysis, unable satisfied autopilot car leads to easily that cyclic annular network transmission data leads to.
The utility model provides a vehicle sensor data distribution system for the sensing data distribution of a plurality of sensors of vehicle arrives the main operation control module and the redundant operation control module of vehicle, include:
the first Ethernet chip is connected with the main operation control module;
the second Ethernet chip is connected with the redundancy operation control module;
the first Ethernet chip and the second Ethernet chip are respectively connected with different sensors, and the second Ethernet chip is also connected with the first Ethernet chip to exchange data;
the first Ethernet chip outputs the received sensing data to the main operation control module, and the second Ethernet chip outputs the received sensing data to the redundant operation control module.
Optionally, the sensor includes a vehicle attitude sensor, the vehicle attitude sensor is connected to an MCU of the vehicle, and the MCU is further connected to the first ethernet chip or the second ethernet chip.
Optionally, the MCU is provided with an SPI interface and an ethernet interface, the sensing data collected by the vehicle attitude sensor is transmitted to the MCU through the SPI interface, and the MCU transmits the received sensing data to the second ethernet chip or the second ethernet chip through the ethernet interface.
Optionally, the sensor further includes a satellite positioning antenna, the satellite positioning antenna is connected to a satellite positioning data receiving circuit in the vehicle, the satellite positioning data receiving circuit is connected to an MCU of the vehicle, and the MCU is connected to the first ethernet chip or the second ethernet chip.
Optionally, the MCU is further provided with an SPI interface, an I2C interface, and an ethernet interface, the sensing data received by the satellite positioning data receiving circuit is sent to the MCU through the SPI interface and the I2C interface, and the MCU transmits the received sensing data to the first ethernet chip or the second ethernet chip through the ethernet interface.
Optionally, the vehicle further comprises a power circuit, an output end of the power circuit is connected with the first ethernet chip and the second ethernet chip, and an input and an output of the power circuit are connected with a power supply of the vehicle.
Optionally, the power supply of the vehicle includes a main power supply and a redundant power supply, the power supply circuit further includes a power supply switching circuit and a voltage stabilizing circuit, the power supply switching circuit is connected with the main power supply, the redundant power supply and the voltage stabilizing circuit, and the voltage stabilizing circuit is connected with the first ethernet chip and the second ethernet chip.
Optionally, the sensors include at least one of a 360-degree laser radar, a blind spot laser radar, a millimeter wave laser radar, and a camera, and the number of each of the sensors is at least 1.
Optionally, the first ethernet chip and the second ethernet chip are both multi-channel ethernet switching cores.
Optionally, the first ethernet chip and the second ethernet chip are both provided with ethernet interfaces, and the ethernet interfaces are vehicle-mounted ethernet interfaces or industrial ethernet interfaces.
The embodiment of the utility model provides a vehicle sensor data distribution system, including first ethernet chip and second ethernet chip, first ethernet chip is connected with main operation control module, and the second ethernet chip is connected with redundant operation control module; the first Ethernet chip and the second Ethernet chip are respectively connected with different sensors, and the second Ethernet chip is also connected with the first Ethernet chip to exchange data; the first Ethernet chip outputs the received sensing data to the main operation control module, and the second Ethernet chip outputs the received sensing data to the redundancy operation control module. The first Ethernet chip and the second Ethernet chip are respectively connected with different sensors, and data can be exchanged between the first Ethernet chip and the second Ethernet chip, so that the first Ethernet chip and the second Ethernet chip can receive the sensing data of all the sensors, and the main operation control module and the redundant operation control module which are respectively connected with the first Ethernet chip and the second Ethernet chip can also receive the sensing data of all the sensors, so that the distribution of the sensing data is realized.
It should be understood that the statements in this section are not intended to identify key or critical features of the embodiments of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle sensor data distribution system provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another vehicle sensor data distribution system provided by the embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
In comparison with a conventional automobile, an intelligent vehicle such as a driving-assistant or automatic driving automobile is generally provided with more sensors, for example, a radar sensor, a camera, and the like. And a main operation control module in the intelligent vehicle identifies and processes the sensing data of the sensor so as to control the vehicle to run, avoid obstacles and the like. In addition to the primary operational control module, the intelligent vehicle is provided with an independent redundant operational module which is used for replacing the primary operational control module to execute vehicle control tasks when the primary operational control module fails, and also needs data of vehicle sensors when the redundant operational module executes auxiliary driving or automatic driving.
Fig. 1 is the embodiment of the present invention provides a vehicle sensor data distribution system, which is suitable for distributing the sensing data of a plurality of sensors of a vehicle to the main operation control module and the redundant operation control module of the vehicle. As shown in fig. 1, the vehicle sensor data distribution system 1 includes a first ethernet chip 11, a second ethernet chip 12; the first Ethernet chip 11 is connected with the main operation control module 2, and the second Ethernet chip 12 is connected with the redundant operation control module 3.
The ethernet chip is a tiny controller, and the ethernet mac and the Physical interface transceiver are integrated into the same chip, i.e. an ethernet PHY (Physical Layer) chip. In this embodiment, the first ethernet chip 11 and the second ethernet chip 12 are responsible for receiving analog signals such as electricity and light transmitted by the sensor and forwarding the signals, and therefore the first ethernet chip 11 and the second ethernet chip 12 are equivalent to signal transfer stations. The first ethernet chip 11 and the second ethernet chip 12 are both multi-channel ethernet switch cores, and the first ethernet chip 11 and the second ethernet chip 12 are both provided with ethernet interfaces, wherein the ethernet interfaces are vehicle-mounted ethernet interfaces or industrial ethernet interfaces.
As shown in fig. 1, the first ethernet chip 11 and the second ethernet chip 12 are both connected to different sensors, the sensors include a 360-degree laser radar 41, a millimeter-wave laser radar 42, a blind-zone laser radar 43, and a camera 44, and sensing data collected by the sensors is transmitted to the first ethernet chip 11 or the second ethernet chip 12 through an ethernet. Wherein the number of each sensor is at least 1. For example, the number of cameras 44 may be 8, and the number of millimeter wave lidar 42 may be 10.
It should be noted that, the connection mode between the sensor and the first ethernet chip 11 and the second ethernet chip 12 shown in fig. 1 is only an example, in practical applications, the connection mode between the sensor and the first ethernet chip 11 and the second ethernet chip 12 can be adjusted according to practical requirements, for example, when the distance between the 360-degree laser radar 41 and the second ethernet chip 12 is short or the connection length is short, the 360-degree laser radar 41 can also be connected to the second ethernet chip 12, and the connection mode between the sensor and the first ethernet chip 11 and the second ethernet chip 12 is not limited in the present invention.
The second ethernet chip 12 is further connected to the first ethernet chip 11 for exchanging data, that is, the second ethernet chip 12 and the first ethernet chip 11 can respectively send the sensor data received by themselves to each other, and then the first ethernet chip 11 and the second ethernet chip 12 can both receive the sensor data of all the sensors.
The first ethernet chip 11 outputs the received sensing data to the primary operation control module 2, and the second ethernet chip 12 outputs the received sensing data to the redundant operation control module 3. Since the first ethernet chip 11 and the second ethernet chip 12 can both receive the sensing data of all the sensors, correspondingly, the primary operation control module 2 and the redundant operation control module 3 can also receive the sensing data of all the sensors.
The embodiment of the utility model provides a vehicle sensor data distribution system, including first ethernet chip and second ethernet chip, first ethernet chip is connected with main operation control module, and the second ethernet chip is connected with redundant operation control module; the first Ethernet chip and the second Ethernet chip are respectively connected with different sensors, and the second Ethernet chip is also connected with the first Ethernet chip to exchange data; the first Ethernet chip outputs the received sensing data to the main operation control module, and the second Ethernet chip outputs the received sensing data to the redundancy operation control module. Because the first Ethernet chip and the second Ethernet chip are respectively connected with different sensors, and data can be exchanged between the first Ethernet chip and the second Ethernet chip, the first Ethernet chip and the second Ethernet chip can receive the sensing data of all the sensors, so that the main operation control module and the redundant operation control module which are respectively connected with the first Ethernet chip and the second Ethernet chip can also receive the sensing data of all the sensors, the distribution of the sensing data is realized, and when any one of the main operation control module or the redundant operation control module is disabled, the other control module can acquire all the sensor data to continuously ensure the normal work of the vehicle. Moreover, various sensors are respectively connected with the first Ethernet chip or the second Ethernet chip, and even if the data transmission of one sensor fails, the data transmission of other sensors is not influenced, namely, the vehicle-mounted network paralysis is not caused, and the requirements of low cost and high reliability of the intelligent vehicle can be met.
In an optional embodiment of the utility model, as shown in fig. 2, the sensor includes vehicle attitude sensor 45, and vehicle attitude sensor 45 is used for gathering vehicle attitude data, and vehicle attitude data includes pitch degree, lateral acceleration, longitudinal acceleration, torsion degree etc. and intelligent vehicle generally is provided with and is used for adjusting the automobile body height, the damped suspension of bumper shock absorber, then needs to go to control the suspension according to vehicle attitude data. The vehicle attitude sensor 45 is connected to the MCU5 of the vehicle, the MCU5 of the vehicle is a microcontroller, and the MCU5 is further connected to the first ethernet chip 11 or the second ethernet chip 12, for example, fig. 1 shows that the MCU5 is connected to the second ethernet chip 12. The sensing data transmitted to the MCU5 by the vehicle attitude sensor 45 can also be transmitted to the second ethernet chip 12, and then the data exchange and data transmission between the first ethernet chip 11 and the second ethernet chip 12 are performed, so that the sensing data of the vehicle attitude sensor 45 can be transmitted to the main operation control module 2 and the redundant operation control module 3, and the main operation control module 2 or the redundant operation control module 3 can transmit a control signal to the suspension according to the vehicle attitude data to adjust the height of the vehicle body and the damping of the shock absorber.
In an optional embodiment of the present invention, the MCU5 is provided with an SPI interface and an ethernet interface, the sensing data collected by the vehicle attitude sensor 45 is transmitted to the MCU5 through the SPI interface, and the MCU5 transmits the received sensing data to the first ethernet chip 11 or the second ethernet chip 12 through the ethernet interface.
In an alternative embodiment of the present invention, as shown in fig. 2, the sensor further includes a satellite positioning antenna 46, and the satellite positioning antenna 46 can receive signals transmitted by satellites as sensing data. Satellite positioning antenna 46 passes through coaxial cable with the satellite positioning data receiving circuit 6 in the vehicle and is connected, satellite positioning data receiving circuit 6 connects still to be connected with MCU5, MCU5 still is connected with first ethernet chip 11 or second ethernet chip 12, then the distance data of being transmitted by satellite positioning antenna 46 can be through satellite positioning data receiving circuit 6, MCU5, first ethernet chip 11 or second ethernet chip 12 send to in main operation control module 2 and the redundant operation control module 3, and then main operation control module 2 or redundant operation control module 3 can come the current positional information of vehicle of confirming according to this sensing data.
In an optional embodiment of the present invention, the MCU5 is further provided with an SPI interface, an I2C interface and an ethernet interface, the sensing data received by the satellite positioning data receiving circuit 6 is transmitted to the MCU5 through the SPI interface and the I2C interface, and the MCU5 transmits the received sensing data to the first ethernet chip 11 or the second ethernet chip 12 through the ethernet interface.
The data transmission speed of the SPI interface and the I2C interface is low but the cost is low, and the data transmission speed of the ethernet interface is high but the cost is high, because the data transmission speed of the SPI interface and the I2C interface can meet the transmission requirement for the satellite positioning antenna 46, the satellite positioning data receiving circuit 6, and the vehicle attitude sensor 45, and therefore the high-speed transmission ethernet interface is not needed. And an interface matched with the transmission requirement is adopted, so that the transmission requirement can be met and the cost can be reduced.
In an optional embodiment of the present invention, as shown in fig. 2, the vehicle sensor data distribution system 1 further includes a power circuit 13, an output terminal of the power circuit 13 is connected to the first ethernet chip 11 and the second ethernet chip 12, and an input terminal of the power circuit 13 is connected to a power supply of the vehicle.
In an optional embodiment of the present invention, as shown in fig. 2, the power supply of the vehicle includes a main power supply 7 and a redundant power supply 8, the power supply circuit 13 further includes a power switching circuit 131 and a voltage stabilizing circuit 132, the power switching circuit 131 is connected to the main power supply 7, the redundant power supply 8 and the voltage stabilizing circuit 132, and the voltage stabilizing circuit 132 is connected to the first ethernet chip 11 and the second ethernet chip 12. The main power supply 7 and the redundant power supply 8 are in double input, the redundant power supply 8 is used as a backup power supply of the main power supply 7, and when the main power supply 7 has a power failure or a power line failure, the power supply switching circuit 131 switches the power supply input into the redundant power supply 8, so that the normal operation of the vehicle sensor data distribution system 1 can be ensured. The voltage stabilizing circuit 132 can keep the output voltage constant or reduce the voltage variation when switching the power supply, so as to reduce the voltage variation to affect the normal operation of the first ethernet chip 11 and the second ethernet chip 12.
The embodiment of the utility model provides a vehicle sensor data distribution system, to the sensing data of different grade type, adopt the interface that matches with the data transmission rate demand, reduce cost when can satisfying the transmission demand, in addition, still set up main power supply and redundant power supply at the power of vehicle, correspondingly, set up power supply switching circuit and voltage stabilizing circuit in vehicle sensor data distribution system to ensure that vehicle sensor data distribution system power is stably supplied, improve the whole reliability of vehicle.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A vehicle sensor data distribution system for distributing sensor data of a plurality of sensors of a vehicle to a primary operational control module and a redundant operational control module of the vehicle, comprising:
the first Ethernet chip is connected with the main operation control module;
the second Ethernet chip is connected with the redundancy operation control module;
the first Ethernet chip and the second Ethernet chip are respectively connected with different sensors, and the second Ethernet chip is also connected with the first Ethernet chip to exchange data;
the first Ethernet chip outputs the received sensing data to the main operation control module, and the second Ethernet chip outputs the received sensing data to the redundant operation control module.
2. The vehicle sensor data distribution system according to claim 1, wherein the sensor includes a vehicle attitude sensor connected to an MCU of the vehicle, the MCU further connected to the first ethernet chip or the second ethernet chip.
3. The vehicle sensor data distribution system according to claim 2, wherein the MCU is provided with an SPI interface through which the sensing data collected by the vehicle attitude sensor is transmitted to the MCU and an ethernet interface through which the MCU transmits the received sensing data to the second ethernet chip or the second ethernet chip.
4. The vehicle sensor data distribution system of claim 1, wherein the sensor further comprises a satellite positioning antenna, the satellite positioning antenna being connected to a satellite positioning data receiving circuit in the vehicle, the satellite positioning data receiving circuit connection also being connected to an MCU of the vehicle, the MCU also being connected to the first ethernet chip or the second ethernet chip.
5. The vehicle sensor data distribution system according to claim 4, wherein an SPI interface, an I2C interface and an Ethernet interface are further provided on the MCU, the sensing data received by the satellite positioning data receiving circuit is transmitted to the MCU through the SPI interface and the I2C, and the MCU transmits the received sensing data to the first Ethernet chip or the second Ethernet chip through the Ethernet interface.
6. The vehicle sensor data distribution system according to claim 1, further comprising a power circuit, an output terminal of the power circuit being connected to the first ethernet chip and the second ethernet chip, an input and an output of the power circuit being connected to a power supply of the vehicle.
7. The vehicle sensor data distribution system of claim 6, wherein the power supply of the vehicle includes a primary power supply and a redundant power supply, the power supply circuit further comprising a power switching circuit and a voltage regulator circuit, the power switching circuit connected to the primary power supply, the redundant power supply, and the voltage regulator circuit connected to the first Ethernet chip and the second Ethernet chip.
8. The vehicle sensor data distribution system of any of claims 1-7, wherein the sensors comprise at least one of a 360 degree lidar, a blind spot lidar, a millimeter wave lidar, a camera, and wherein the number of each of the sensors is at least 1.
9. The vehicle sensor data distribution system of any one of claims 1-7, wherein the first Ethernet chip and the second Ethernet chip are both multi-channel Ethernet switch cores.
10. The vehicle sensor data distribution system according to any one of claims 1 to 7, wherein the first Ethernet chip and the second Ethernet chip are each provided with an Ethernet interface, and the Ethernet interface is an on-board Ethernet interface or an industrial-grade Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222270455.8U CN217863996U (en) | 2022-08-26 | 2022-08-26 | Vehicle sensor data distribution system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222270455.8U CN217863996U (en) | 2022-08-26 | 2022-08-26 | Vehicle sensor data distribution system |
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| Publication Number | Publication Date |
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| CN217863996U true CN217863996U (en) | 2022-11-22 |
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| CN202222270455.8U Active CN217863996U (en) | 2022-08-26 | 2022-08-26 | Vehicle sensor data distribution system |
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| CN (1) | CN217863996U (en) |
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- 2022-08-26 CN CN202222270455.8U patent/CN217863996U/en active Active
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