CN212258993U

CN212258993U - Vehicle-mounted T-BOX based on vehicle-mounted Ethernet

Info

Publication number: CN212258993U
Application number: CN202021807347.4U
Authority: CN
Inventors: 詹茂晴
Original assignee: Dilu Technology Co Ltd
Current assignee: Dilu Technology Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-12-29
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a vehicle-mounted T-BOX based on vehicle-mounted Ethernet, relating to the technical field of vehicle Ethernet and vehicle-mounted network, comprising an MCU controller, a wireless communication module, a vehicle-mounted Ethernet interface chip and a power module; the MCU controller is connected to a wireless communication module, and the wireless communication module is connected with a vehicle-mounted Ethernet interface chip; the vehicle-mounted Ethernet interface chip is connected with a vehicle-mounted Ethernet gateway of the whole vehicle through a single pair of unshielded twisted pair wires; the vehicle storage battery supplies power to the vehicle-mounted Ethernet gateway, the vehicle-mounted Ethernet gateway supplies power to the power module through the single pair of unshielded twisted pair wires, and the power module supplies power to the MCU controller, the wireless communication module and the vehicle-mounted Ethernet interface chip. The utility model discloses use on-vehicle ethernet technique 100BASE-T1, 1000BASE-T1, data transmission can reach 100Mbps, 1000Mbps, simultaneously based on PODL power supply technology, only need 1 not only can supply power but also can transmit data to the non-shielded data line, solved the low, the higher problem of wiring cost of data transmission rate.

Description

Vehicle-mounted T-BOX based on vehicle-mounted Ethernet

Technical Field

The utility model relates to a vehicle ethernet, vehicle network technical field especially relate to an on-vehicle T-BOX based on vehicle ethernet.

Background

The T-BOX is used as a wireless gateway of the automobile, and provides a remote communication interface for the whole automobile through the functions of a 4G communication technology, GNSS (Global Navigation Satellite System) Satellite positioning and a local communication network (CAN, traditional Ethernet and the like), and provides services including driving data acquisition, vehicle fault monitoring, vehicle remote query and control, road rescue, driving behavior analysis, remote software upgrading OTA and the like. The function of the T-BOX in the automobile is more and more important, and the T-BOX is more and more emphasized by host manufacturers. With the rising of technologies such as car networking, pure electric vehicles, automatic driving, domain controllers and the like, the number of vehicle-mounted electronic devices (sensors, controllers and the like) on an intelligent car is remarkably increased, more and more devices are needed to perform remote data communication through the T-BOX, and the bandwidth requirement of the whole car on the T-BOX is higher and higher.

The traditional vehicle-mounted T-BOX local communication interface mainly comprises a CAN and a traditional Ethernet, and as shown in figure 1, the traditional vehicle-mounted T-Box comprises an MCU controller, a CAN interface chip, a traditional Ethernet interface chip, a wireless communication module and a power supply module. The system comprises a vehicle-mounted T-Box, a CAN gateway and a traditional Ethernet interface chip, wherein the traditional Ethernet interface chip is used for realizing the network interface connection between the traditional Ethernet and the CAN gateway and the vehicle-mounted T-Box; the communication data of the whole vehicle is acquired and sent in real time through a CAN bus, so that the monitoring and control of the whole vehicle are realized; and sending and receiving data with the cloud server through the wireless communication module. The MCU controller controls the CAN interface chip, the traditional Ethernet interface chip and the wireless communication module to work. The automobile battery supplies power to the T-BOX power module, and the power module supplies power to other modules.

The problems existing in the prior art are as follows: (1) CAN uses comparatively generally in automotive electronics, and CAN communication's bandwidth is the biggest CAN reach 8Mbps, but the speed has not satisfied intelligent automobile's needs far away. (2) By adopting the traditional Ethernet, although the bandwidth can reach 100Mbps, the two pairs of unshielded twisted pairs of the traditional Ethernet have higher requirements on the wiring of automobiles, and the wiring cost is higher. (3) The power supply of the T-BOX needs to be separately powered by the power line.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: to above problem, the utility model provides an on-vehicle T-BOX based on-vehicle ethernet uses on-vehicle ethernet's technique (100BASE-T1, 1000BASE-T1), and Data transmission can reach 100Mbps or 1000Mbps, simultaneously through PODL (Power over Data lines) power supply technique, need not supply power with the power cord alone, only need 1 not to shield the Data line both can supply power and can transmit Data, the problem that Data transmission rate is low has been solved, the higher problem of wiring cost has been solved again.

The technical scheme is as follows: for realizing the purpose of the utility model, the utility model adopts the technical proposal that: a vehicle-mounted T-BOX based on a vehicle-mounted Ethernet comprises an MCU controller, a wireless communication module, a vehicle-mounted Ethernet interface chip and a power module.

The MCU controller is connected to the wireless communication module and used for controlling and transmitting data. The wireless communication module is connected with the vehicle-mounted Ethernet interface chip. The MCU controller is responsible for controlling the starting, closing and restarting of the wireless communication module, configuring parameters of the wireless communication module, and realizing the data sending and receiving of the T-BOX and the cloud server through the wireless communication module. The wireless communication module is internally integrated with a GNSS (Global Navigation Satellite System) positioning function, and can provide current positioning information. Preferably, the wireless communication module and the vehicle-mounted ethernet interface chip are in data connection through any one of an interface of mii (Media Independent interface), rmii (reduced Media Independent interface), rgmii (reduced bit Media Independent interface), and sgmii (serial bit Media Independent interface).

The vehicle-mounted Ethernet interface chip is connected with a vehicle-mounted Ethernet gateway of the whole vehicle through a single pair of unshielded twisted pair wires, so that network connection of 100Mbps/1000Mbps (100BASE-T1/1000BASE-T1) is realized; the automobile battery supplies power for the vehicle-mounted Ethernet gateway; the utility model discloses use on-vehicle ethernet PODL technique, make on-vehicle ethernet gateway supply power through single pair non-shielding twisted pair power module, power module is MCU controller, wireless communication module, the power supply of on-vehicle ethernet interface chip.

The vehicle-mounted Ethernet gateway is connected with the intelligent driving domain controller, the intelligent cabin domain controller and the power assembly domain controller, data of each domain controller is forwarded to the T-BOX, and the T-BOX is forwarded to the cloud server through the wireless communication module. The vehicle-mounted T-BOX realizes data interactive communication with other controllers of other domains of the whole vehicle through the connection with the vehicle-mounted Ethernet gateway.

Has the advantages that: compared with the prior art, the technical scheme of the utility model following profitable technological effect has:

(1) the utility model discloses an on-vehicle T-BOX based on-vehicle ethernet just can provide 100Mbps or 1000 Mbps's high bandwidth through single to unshielded twisted pair line and carries out remote data communication for whole car, can make full use of 4G network, promotes the experience that the network used.

(2) The utility model discloses power supply to T-BOX based on-vehicle ethernet PODL technique. Originally, need 6 data lines and 2 power cords totally eight lines, through PODL power supply technique, only need 1 to unshielded data line both can supply power and can transmit data, reduced the wiring and reduced pencil cost.

Drawings

FIG. 1 is a conventional T-BOX system diagram;

fig. 2 is a T-BOX system diagram of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Vehicle-mounted T-BOX, as shown in FIG. 2, including MCU controller, wireless communication module, on-vehicle ethernet interface chip, power module. The MCU controller is connected to a wireless communication module, and the wireless communication module is connected with a vehicle-mounted Ethernet interface chip; the vehicle-mounted Ethernet interface chip is connected with a vehicle-mounted Ethernet gateway of the whole vehicle through a single pair of unshielded twisted pair wires; the vehicle storage battery supplies power to the vehicle-mounted Ethernet gateway, the vehicle-mounted Ethernet gateway supplies power to the power module through the single pair of unshielded twisted pair wires, and the power module supplies power to the MCU controller, the wireless communication module and the vehicle-mounted Ethernet interface chip.

The network interface connection between the vehicle-mounted Ethernet gateway and the vehicle-mounted T-BOX is realized through a vehicle-mounted Ethernet interface chip and a single pair of unshielded twisted pair, communication data received by the vehicle-mounted Ethernet gateway and sent by other domain controllers (an intelligent driving domain controller, an intelligent cabin domain controller, a power assembly domain controller and the like) are acquired in real time, and the monitoring and control of the whole vehicle are realized; and sending and receiving data with the cloud server through the wireless communication module. The MCU controller controls the work of the wireless communication module and the vehicle-mounted Ethernet interface chip. The vehicle-mounted Ethernet gateway supplies power to the vehicle-mounted Ethernet gateway, the vehicle-mounted Ethernet gateway supplies power to the power module of the T-BOX through the single pair of unshielded twisted pair, and the power module supplies power to other modules.

The utility model discloses an on-vehicle T-BOX just can provide 100Mbps or 1000 Mbps's high bandwidth through single to unshielded twisted pair line and carries out remote data communication for whole car, can make full use of 4G network, promotes the experience that the network used. The T-BOX is powered based on the vehicle-mounted Ethernet PODL technology. Need 6 data lines (2 CAN lines and 4 traditional ethernet lines) and 2 power cords totally 8 lines in the traditional T-BOX scheme, and the utility model discloses a PODL power supply technique only needs 1 not only CAN supply power but also CAN transmit data to the non-shielding data line, has reduced the wiring and has reduced the pencil cost.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle-mounted T-BOX based on vehicle-mounted Ethernet is characterized in that: the vehicle-mounted T-BOX comprises an MCU controller, a wireless communication module, a vehicle-mounted Ethernet interface chip and a power module; the MCU controller is connected to a wireless communication module, and the wireless communication module is connected with a vehicle-mounted Ethernet interface chip; the vehicle-mounted Ethernet interface chip is connected with a vehicle-mounted Ethernet gateway of the whole vehicle through a single pair of unshielded twisted pair wires; the vehicle storage battery supplies power to the vehicle-mounted Ethernet gateway, the vehicle-mounted Ethernet gateway supplies power to the power module through the single pair of unshielded twisted pair wires, and the power module supplies power to the MCU controller, the wireless communication module and the vehicle-mounted Ethernet interface chip.

2. The vehicular ethernet-based vehicular T-BOX according to claim 1, wherein: the wireless communication module is in data connection with the vehicle-mounted Ethernet interface chip through any one of interfaces MII, RMII, RGMII and SGMII.