CN212098728U - Vehicle-mounted gateway and automobile comprising same - Google Patents
Vehicle-mounted gateway and automobile comprising same Download PDFInfo
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- CN212098728U CN212098728U CN202020775728.2U CN202020775728U CN212098728U CN 212098728 U CN212098728 U CN 212098728U CN 202020775728 U CN202020775728 U CN 202020775728U CN 212098728 U CN212098728 U CN 212098728U
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Abstract
The utility model provides a vehicle-mounted gateway reaches car including it, vehicle-mounted gateway includes: a gateway component comprising a circuit board and a gateway circuit disposed on the circuit board; the gateway circuit comprises a main controller, a first data interface used for being connected with a vehicle bus and a second data interface used for being connected with a signal transmission line of an after-market additional electronic device, wherein the first data interface and the second data interface are electrically connected with the data interface of the main controller; the shell is used for packaging the gateway component in the shell, a first through hole suitable for a first signal transmission line to penetrate through and a second through hole suitable for a second signal transmission line to penetrate through are formed in the shell, the first signal transmission line is connected with the first data interface and the vehicle bus, and the second signal transmission line is connected with the second data interface and the additional electronic device; the mounting bracket is used for fixing the shell at a position to be mounted on the vehicle. Through the structure, bus communication between the accessory attached to the rear market and the whole vehicle network can be realized, and the installation is convenient.
Description
Technical Field
The utility model relates to an auto-parts technical field, concretely relates to vehicle-mounted gateway reaches car including it.
Background
The development of the internet brings great influence to the development of automobiles, and the interconnection of information between the automobiles and the outside world through the network is increasingly frequent. Electronic products with rich functions are rapidly popularized on automobiles, so that the integral electronization level of the automobile industry is obviously improved. Automobiles have been changed from centralized manual control to distributed electronic automatic control, and hundreds of Electronic Control Units (ECUs) in the automobiles are connected with each other in a manner of transmitting information through a bus, and are driven by ten million lines of program codes, so that an efficient and complex networked system is formed. The popularization of the wireless communication module, particularly the introduction of a vehicle-mounted information system, provides a brand new challenge for the information safety of automobiles.
Under the assistance of intelligent scientific and technological automobiles, the requirements of adding parts to intelligent electronic accessories in the automobile aftermarket (which is a general term for a series of transaction activities generated by various subsequent needs and services in the automobile after-sale use link from sale to scrapping of automobiles, and which are frequently interconnected with the outside world and also have a million-of-thousands link with an in-automobile module through a bus) are increasing. Therefore, the vehicle-mounted intelligent system has become the latest entrance to attack the vehicle, and therefore, in view of the requirement of vehicle network security, in order to avoid the vehicle-mounted intelligent system from being influenced by the additional electronic accessories after the aftermarket, the after-applied electronic accessory products in the prior art have rich functions of interconnecting with the outside and have less interaction with the vehicle body bus, so that the control of the automobile and parts is far out of the control range of the driver.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in the problem that additional electronic accessories product can't interact and bring with the vehicle bus behind the central vehicle market of prior art.
Therefore, the utility model provides an on-vehicle gateway, include:
a gateway component comprising a circuit board and a gateway circuit disposed on the circuit board; the gateway circuit comprises a main controller, a first data interface used for being connected with a vehicle bus and a second data interface used for being connected with a signal transmission line of an after-market additional electronic device, wherein the first data interface and the second data interface are electrically connected with the data interface of the main controller;
a housing configured to encapsulate the gateway component therein, the housing being provided with a first through hole through which a first signal transmission line passes and a second through hole through which a second signal transmission line passes, the first signal transmission line connecting the first data interface and the vehicle bus, the second signal transmission line connecting the second data interface and the additional electronic device;
and the mounting bracket is arranged outside the shell and used for fixing the shell at a position to be mounted on the vehicle.
Optionally, in the above vehicle-mounted gateway:
a first connecting lug extends from the first end surface of the shell, and a first connecting hole is formed in the first connecting lug;
a second connecting lug extends from the second end face of the shell, and a second connecting hole is formed in the second connecting lug; the second end face and the first end face are oppositely arranged;
the mounting bracket comprises a first fixing bridge and a second fixing bridge, and threaded holes are formed in the first fixing bridge and the second fixing bridge; the bolt runs through first connecting hole with screw hole on the first fixed bridge, and will behind the second connecting hole with the screw hole on the second fixed bridge the casing with installing support fixed connection.
Optionally, in the above vehicle-mounted gateway:
a group of right-angled triangle-shaped first inclined planes which are oppositely arranged are formed on the first connecting lug, one direct edge of each first inclined plane is connected with the first end face of the shell, and the other right-angled edge of each first inclined plane is connected with the first connecting lug;
a group of right-angled triangle-shaped second inclined planes which are oppositely arranged are formed on the second connecting lug, one direct edge of each second inclined plane is connected with the second end face of the shell, and the other right-angled edge of each second inclined plane is connected with the second connecting lug.
Optionally, in the above vehicle-mounted gateway:
one end of the first fixing bridge extends outwards to form a first bending part, and a fixing hole suitable for a fixing bolt to penetrate through is formed in the first bending part;
one end of the second fixing bridge extends outwards to form a second bending part, and a fixing hole suitable for a fixing bolt to penetrate through is formed in the second bending part;
the outer portion of the first fixing bridge and the outer portion of the second fixing bridge refer to a side facing away from the housing.
Optionally, in the above vehicle-mounted gateway:
the bottom surface of casing is provided with bears the bracket, bear the bracket with be provided with the insulating layer between the bottom surface of casing, be fixed with magnet on bearing the bracket.
Optionally, in the above vehicle-mounted gateway:
the circuit board in the gateway component is adhered to the inside of the shell through insulating glue.
Optionally, in the above vehicle-mounted gateway:
at least one group of opposite sides of the circuit board are in interference fit with the interior of the shell, so that the circuit board is limited by the shell.
Optionally, the above vehicle-mounted gateway further includes:
and the vibration damping layer is filled between the circuit board and the shell.
Optionally, the above vehicle-mounted gateway further includes:
and the sealing rubber strip is arranged at the edges of the first through hole and the second through hole.
The utility model also provides an automobile, including above arbitrary the vehicle-mounted gateway.
Compared with the prior art, the embodiment of the utility model provides an above-mentioned technical scheme has following beneficial effect at least:
the utility model provides a vehicle-mounted gateway reaches car including it, the gateway circuit wherein includes main control unit, be used for with vehicle bus connection's first data interface and be used for with the additional electron device signal transmission line's of aftermarket second data interface that is connected, first data interface and second data interface all are connected with main control unit's data interface electricity, can realize the additional annex of aftermarket and the bus communication of whole car network through above-mentioned structure, can satisfy the requirement of vehicle safety on the one hand, protect whole car safety; on the other hand, the communication between the aftermarket accessories and the whole vehicle can be realized, and the functions of the accessories are strong. And above-mentioned gateway subassembly can be fixed in on the automobile body through the installing support, and is simple and convenient, does not influence vehicle self structure, to current body construction and aesthetic property's no destruction, has improved the competitiveness of annex product.
Drawings
Fig. 1 is an overall schematic view of a vehicle-mounted gateway according to an embodiment of the present invention;
fig. 2 is a topology diagram of the vehicular gateway according to an embodiment of the present invention;
fig. 3 is a software architecture diagram of the vehicle gateway according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or component to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides an each technical scheme in following embodiment, unless contradictory each other, but can make up each other between the different technical scheme, technical feature in the different schemes can replace each other.
The present embodiment provides a vehicle-mounted gateway, and referring to fig. 1 and fig. 2, the vehicle-mounted gateway includes:
a gateway component 200 comprising a circuit board and a gateway circuit disposed on the circuit board; the gateway circuit comprises a main controller, a first data interface used for being connected with a vehicle bus and a second data interface used for being connected with a signal transmission line of an after-market additional electronic device, wherein the first data interface and the second data interface are electrically connected with the data interface of the main controller;
a housing 101, where the housing 101 is configured to encapsulate the gateway component 200 inside, a first through hole 201 suitable for a first signal transmission line to pass through and a second through hole 202 suitable for a second signal transmission line to pass through are formed in the housing 101, the first signal transmission line connects the first data interface and the vehicle bus, and the second signal transmission line connects the second data interface and the additional electronic device; the vehicle bus is connected to the original vehicle firewall 300 and the aftermarket accessories may include a plurality of accessories 1, 2, etc. as shown.
And the mounting bracket is arranged outside the shell 101 and is used for fixing the shell 101 at a position to be mounted on a vehicle.
A gateway is a combination of software and hardware that can connect different networks, which can connect the two systems using different formats, communication protocols, or architectures. In order for the gateway to accomplish this task, by actually repackaging the information so that they can be read by another system, the gateway must be able to apply the communication, establish and manage sessions, transmit the already encoded data, and resolve the logical and physical address data. The gateway can perform encapsulation of the forwarded packets based on MAC address (physical address) identification, which can "learn" the MAC address and store it in an internal address table, allowing the data frame to reach the destination address directly from the source address by establishing a temporary switched path between the originator and the target recipient of the data frame. In the above scheme, the gateway circuit includes a main controller, a first data interface for connecting with a vehicle bus, and a second data interface for connecting with a signal transmission line of an after-market additional electronic device, where the first data interface and the second data interface are both electrically connected with the data interface of the main controller, and by the above structure, bus communication between an after-market additional accessory and a vehicle network can be realized, so that on one hand, the requirement of vehicle safety can be met, and the vehicle safety can be protected; on the other hand, the communication between the aftermarket accessories and the whole vehicle can be realized, and the functions of the accessories are strong. And above-mentioned gateway subassembly can be fixed in on the automobile body through the installing support, and is simple and convenient, does not influence vehicle self structure, to current body construction and aesthetic property's no destruction, has improved the competitiveness of annex product.
Specifically, as shown in FIG. 3, the master controller in this scenario may alternatively be a microcontroller of MPC5605B having four CAN interfaces for interfacing with the PT-CAN bus, the D-CAN bus, the I-CAN bus and the AccP-CAN bus, respectively. In addition, according to the design requirement of the MPC5605B, a component group such as a crystal oscillator, a capacitor, a CAN transceiver, a diode and a terminal resistor CAN be further arranged on the circuit board, and a data interface of the CAN realizes the transmission and the reception of bus signals under the control of the main controller. The filter is primarily for obtaining a power signal at a particular frequency and the termination resistor is for eliminating signal reflections in the communication cable.
The functions of the vehicle-mounted gateway in the above scheme are divided into a wake-up sleep function, a routing function and a self-diagnosis function. The hardware abstraction layer is an interface layer located before the operating system kernel and the hardware circuitry, which is intended to abstract the hardware. On one hand, the bottom layer driving layer realizes hardware control by sending corresponding instructions to the driving program by the application data, and on the other hand, the driving program transmits the data obtained from the hardware to the application program according to the hardware reading and writing state, so as to realize the interaction between the application program and the driving program. Initial authentication between the accessory gateway and the accessory is accomplished through initialized activation learning. In the process, the accessory gateway stores relevant part information so as to carry out verification every time the accessory gateway is powered on. And when the power is on every time, the accessory sends the related part information to the accessory gateway, and the accessory gateway verifies the accessory. And after the verification is successful, the received message of the whole vehicle is sent to the accessory according to the established rule. If the verification fails, the accessory gateway in the power cycle does not forward signals to the accessory any more. The authentication mechanism is composed of a plurality of messages which need to pass safety assessment and are additionally provided with accessories, when the BCM of the whole vehicle or the additional accessories have messages to be sent, the messages passing the authentication can pass through and be processed and forwarded to the additional accessories or the BCM of the whole vehicle, otherwise, the messages can not be processed and forwarded, and the white list mechanism enables the safety of the whole vehicle to be greatly improved. The authentication mechanism of the gateway and the accessory mainly means that when the gateway and the navigation are installed for the first time, pairing authentication is carried out according to a certain rule, and the accessory gateway can store required part information. And when the accessory is powered on every time, the accessory sends the part information to be sent to the accessory gateway, and the accessory gateway verifies the part information. And after the verification is successful, the received message of the whole vehicle is sent to the accessory according to the established rule. The verification mechanism prevents the risk that the accessory gateway forwards the message to other unauthorized accessories, and reduces the danger brought to the whole vehicle by the third-party accessories. It is understood that the above functions are described as existing functions of the gateway itself, and the implementation manner thereof can be implemented by using methods well-known in the art, and will not be described in detail in this embodiment.
As shown in fig. 1, in the above embodiments, a first connecting lug 1021 extends from a first end surface of the housing 101, and a first connecting hole is formed in the first connecting lug 1021; a second connecting lug 1022 extends from a second end face of the housing 101, and a second connecting hole is formed in the second connecting lug 1022; the second end face and the first end face are oppositely arranged; the mounting bracket comprises a first fixing bridge 1031 and a second fixing bridge 1032, and threaded holes are formed in the first fixing bridge 1031 and the second fixing bridge 1032; bolts 1041 and 1042 penetrate through the first connecting holes and the threaded holes on the first fixing bridge 1031, and the second connecting holes and the threaded holes on the second fixing bridge 1032 to fixedly connect the housing 101 with the mounting bracket. Above scheme passes through the bolt and realizes being connected between casing and the fixed bridge, can install arbitrary concealed position department on the vehicle with it simultaneously, avoids influencing vehicle aesthetic property.
As shown in the drawings, it is preferable that a set of first inclined surfaces 1061 in a right triangle shape are formed on the first connecting lug 10031, and one straight edge of the first inclined surface 1061 is connected to the first end surface of the housing 101, and the other straight edge of the first inclined surface 1061 is connected to the first connecting lug 1021; a set of right-angled triangle-shaped second inclined surfaces 1062 are formed on the second engaging lug 1022 and are oppositely arranged, one direct edge of the second inclined surface 1062 is connected with the second end surface of the housing 101, and the other right-angled edge of the second inclined surface 1062 is connected with the second engaging lug 1022. Can strengthen the engaging lug through setting up the inclined plane, ensure that the engaging lug is stable to be connected.
Preferably, one end of the first fixing bridge 1031 extends outwards to form a first bending portion, and a fixing hole suitable for the fixing bolt 1051 to pass through is formed on the first bending portion; one end of the second fixing bridge 1032 extends outwards to form a second bending part, and a fixing hole suitable for a fixing bolt 1052 to pass through is formed in the second bending part; the outer part of the first fixing bridge 1031 and the outer part of the second fixing bridge 1032 refer to the side facing away from the housing 101. Through the design of the portion of bending, the fixed mode of fixed axle has been richened, can follow two directions at least and on being fixed in the vehicle with fixed axle, make its installation nimble more convenient.
As another way to realize this, a carrying bracket is disposed on the bottom surface of the housing 101, an insulating layer is disposed between the carrying bracket and the bottom surface of the housing, and a magnet is fixed on the carrying bracket. Through the mode that sets up magnet, can directly set up above-mentioned casing with adsorbing on the vehicle, it is more nimble.
In addition, the circuit board in the gateway component 200 is adhered to the inside of the housing 101 through an insulating adhesive, so that the stability of the circuit board can be improved, and the influence of vehicle bumping on the connection of the circuit board can be avoided. Or, the fixing of the circuit board may be realized in another form, at least one pair of opposite sides of the circuit board is in interference fit with the inside of the housing so that the circuit board is limited by the housing, the circuit board can also be fixed through interference fit limitation, and the connection reliability of the circuit board is ensured. In addition, the vehicle-mounted gateway in the above scheme may further include a sealing rubber strip, which is disposed at the edge of the first through hole and the edge of the second through hole, and when the signal transmission line passes through the first through hole and the second through hole, the through hole may be plugged by the sealing rubber strip, so that the moisture is prevented from entering the housing to affect the normal operation of the electric device.
The embodiment of the other part of the utility model also provides an automobile, including above arbitrary scheme on-vehicle gateway. The automobile comprises the vehicle-mounted gateway which is used for adding the aftermarket accessories, the vehicle-mounted gateway is simple in structure, the transmission information is timely in place, the installation position is hidden, and the damage to the existing automobile body structure and the attractiveness is avoided. The utility model can meet the requirements of vehicle safety on one hand; on the other hand, the communication between the aftermarket accessories and the whole vehicle can be realized, and the functions of the accessories are strong.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An in-vehicle gateway, comprising:
a gateway component comprising a circuit board and a gateway circuit disposed on the circuit board; the gateway circuit comprises a main controller, a first data interface used for being connected with a vehicle bus and a second data interface used for being connected with a signal transmission line of an after-market additional electronic device, wherein the first data interface and the second data interface are electrically connected with the data interface of the main controller;
a housing configured to encapsulate the gateway component therein, the housing being provided with a first through hole through which a first signal transmission line passes and a second through hole through which a second signal transmission line passes, the first signal transmission line connecting the first data interface and the vehicle bus, the second signal transmission line connecting the second data interface and the additional electronic device;
and the mounting bracket is arranged outside the shell and used for fixing the shell at a position to be mounted on the vehicle.
2. The vehicular gateway of claim 1, wherein:
a first connecting lug extends from the first end surface of the shell, and a first connecting hole is formed in the first connecting lug;
a second connecting lug extends from the second end face of the shell, and a second connecting hole is formed in the second connecting lug; the second end face and the first end face are oppositely arranged;
the mounting bracket comprises a first fixing bridge and a second fixing bridge, and threaded holes are formed in the first fixing bridge and the second fixing bridge; the bolt runs through first connecting hole with screw hole on the first fixed bridge, and will behind the second connecting hole with the screw hole on the second fixed bridge the casing with installing support fixed connection.
3. The vehicular gateway of claim 2, wherein:
a group of right-angled triangle-shaped first inclined planes which are oppositely arranged are formed on the first connecting lug, one direct edge of each first inclined plane is connected with the first end face of the shell, and the other right-angled edge of each first inclined plane is connected with the first connecting lug;
a group of right-angled triangle-shaped second inclined planes which are oppositely arranged are formed on the second connecting lug, one direct edge of each second inclined plane is connected with the second end face of the shell, and the other right-angled edge of each second inclined plane is connected with the second connecting lug.
4. The vehicular gateway of claim 2, wherein:
one end of the first fixing bridge extends outwards to form a first bending part, and a fixing hole suitable for a fixing bolt to penetrate through is formed in the first bending part;
one end of the second fixing bridge extends outwards to form a second bending part, and a fixing hole suitable for a fixing bolt to penetrate through is formed in the second bending part;
the outer portion of the first fixing bridge and the outer portion of the second fixing bridge refer to a side facing away from the housing.
5. The vehicular gateway of claim 1, wherein:
the bottom surface of casing is provided with bears the bracket, bear the bracket with be provided with the insulating layer between the bottom surface of casing, be fixed with magnet on bearing the bracket.
6. The vehicular gateway according to any one of claims 1 to 5, wherein:
the circuit board in the gateway component is adhered to the inside of the shell through insulating glue.
7. The vehicular gateway of claim 6, wherein:
at least one group of opposite sides of the circuit board are in interference fit with the interior of the shell, so that the circuit board is limited by the shell.
8. The vehicular gateway of claim 6, further comprising:
and the vibration damping layer is filled between the circuit board and the shell.
9. The vehicular gateway of claim 6, further comprising:
and the sealing rubber strip is arranged at the edges of the first through hole and the second through hole.
10. An automobile comprising the in-vehicle gateway of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020775728.2U CN212098728U (en) | 2020-05-11 | 2020-05-11 | Vehicle-mounted gateway and automobile comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020775728.2U CN212098728U (en) | 2020-05-11 | 2020-05-11 | Vehicle-mounted gateway and automobile comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212098728U true CN212098728U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020775728.2U Active CN212098728U (en) | 2020-05-11 | 2020-05-11 | Vehicle-mounted gateway and automobile comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212098728U (en) |
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2020
- 2020-05-11 CN CN202020775728.2U patent/CN212098728U/en active Active
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