JP2022078816A - On-vehicle information processing device - Google Patents

Abstract

To provide an on-vehicle information processing device capable of improving manufacturing efficiency.SOLUTION: An on-vehicle information processing device includes: a sub board (second electronic circuit board) 14 having a multimedia interface connector (MIF-CN) 91 for output; or a sub board (first electronic circuit board) having a multimedia interface connector (MIF-CN) for input. The outer shape of the first electronic circuit board and the outer shape of the second electronic circuit board are the same. In addition, the position of the multimedia interface connector (MIF-CN) for input on the first electronic circuit board and the position of the multimedia interface connector (MIF-CN) 91 for output on the second electronic circuit board are the same.SELECTED DRAWING: Figure 4

Description

The present invention relates to an in-vehicle information processing device.

Conventionally, an in-vehicle infotainment (IVI) device that provides entertainment by outputting audio (sound) and video (video) in a vehicle interior is known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2019-18844

By the way, in the above-mentioned conventional device, it is desired to improve the manufacturing efficiency while corresponding to different device configurations depending on, for example, a vehicle type, a specification, a destination, and the like.

An object of the present invention is to provide an in-vehicle information processing apparatus capable of improving manufacturing efficiency.

In order to solve the above problems and achieve the above object, the present invention has adopted the following aspects.
(1) The vehicle-mounted information processing device according to one aspect of the present invention (for example, the vehicle-mounted information processing device 10 in the embodiment) is a digital communication connector of at least one predetermined standard for input and output (for example, an embodiment). Electronic circuit board having an output multimedia interface connector (MIF-CN) 91, input multimedia interface connector (MIF-CN) 91A) (for example, sub-boards 14, 14A in the embodiment, 14B, 14C), the outer shape of the first electronic circuit board (for example, the sub-boards 14A, 14C in the embodiment) which is an electronic circuit board having at least the digital communication connector for the input. And at least the outer shape of the second electronic circuit board (for example, the sub-boards 14, 14B in the embodiment) which is the electronic circuit board having the digital communication connector for the output is the same, and the first electronic circuit board. The position of the digital communication connector for the input and the position of the digital communication connector for the output on the second electronic circuit board are the same.

(2) In the in-vehicle information processing apparatus according to (1) above, the electronic circuit board has a signal of a first digital communication which is a digital communication of the predetermined standard and a second digital of a standard different from that of the first digital communication. A signal conversion device (for example, the signal conversion device 96 in the embodiment) that converts between the signal of communication and a shield member (for example, the second shield member 98 in the embodiment) that surrounds the signal conversion device. You may prepare.

(3) In the in-vehicle information processing apparatus according to (2) above, the signal conversion device may be arranged at the end of the second electronic circuit board.

(4) In the in-vehicle information processing apparatus according to (2) or (3) above, the electronic circuit board is a digital broadcast receiver (for example, a DTV connector 90, a DTV tuner 94, and a connector (XM) in the embodiment. -CN) 99A and tuner 99B) and a digital signal processing unit (for example, the DTV digital unit 95 in the embodiment) may be provided, and the shield member may surround the digital signal processing unit.

(5) In the in-vehicle information processing apparatus according to (4) above, the second electronic circuit board is a predetermined bus interface unit provided between the receiving unit, the digital signal processing unit, and the signal conversion device. (For example, the first bus connector (USB-CN1) 88 and the second bus connector (USB-CN2) 89 in the embodiment) may be provided.

(6) In the in-vehicle information processing device according to any one of (1) to (4) above, an audio board (for example, an audio board including an analog system arranged in the first layer) as a plurality of boards sequentially stacked and arranged. , Audio board 11 in the embodiment, an interface board arranged in the second layer (for example, the interface board 12 in the embodiment), and a multimedia board (for example, a multimedia board including a digital system arranged in the third layer). The multimedia board 13) in the embodiment and the electronic circuit board arranged in the fourth layer may be provided.

According to the above (1), the positions of the digital communication connectors of the first electronic circuit board and the second electronic circuit board having the same outer shape are the same, so that the manufacturing efficiency can be improved while supporting different functions. Can be done.

In the case of (2) above, by providing the shield member surrounding the signal conversion device that processes the digital signal, it is possible to suppress the noise of the signal conversion device from leaking to the outside of the shield member.

In the case of (3) above, the signal conversion device is arranged at the end of the second electronic circuit board, so that the signal conversion device is arranged at the center of the second electronic circuit board, for example, as compared with the case where the signal conversion device is arranged at the center of the second electronic circuit board. , It is possible to suppress the noise of the signal conversion device from acting on other devices of the second electronic circuit board.

In the case of (4) above, the digital signal processing unit and the signal conversion are performed by excluding the receiving unit that receives the analog signal related to the digital broadcasting and surrounding the digital signal processing unit that processes the digital signal with the signal conversion device by the shield member. It is possible to suppress the leakage of device noise to the outside of the shield member. Since the shield member is shared by the digital signal processing unit and the signal conversion device, it is possible to suppress an increase in the cost required for the configuration.

In the case of (5) above, it is possible to suppress the noise of the signal conversion device from acting on the receiving unit that receives the analog signal related to digital broadcasting.

In the case of (6) above, by arranging the audio board including the analog system and the multimedia board including the digital system in different layers, it is possible to suppress the noise of the multimedia board from acting on the audio board. can.

The figure which shows the structure of the vehicle which mounts the vehicle-mounted information processing apparatus in embodiment of this invention. An exploded perspective view showing a partial configuration of an in-vehicle information processing apparatus according to an embodiment of the present invention. The block block diagram which shows the functional structure of the vehicle-mounted information processing apparatus in embodiment of this invention. The figure which shows the structure of the sub-board of the vehicle-mounted information processing apparatus in embodiment of this invention. The figure which shows the structure of the sub-board of the vehicle-mounted information processing apparatus in the 1st modification of embodiment of this invention. The figure which shows the structure of the sub-board of the vehicle-mounted information processing apparatus in the 2nd modification of embodiment of this invention. The figure which shows the structure of the sub-board of the vehicle-mounted information processing apparatus in the 3rd modification of the Embodiment of this invention.

Hereinafter, the in-vehicle information processing apparatus 10 according to the embodiment of the present invention will be described with reference to the attached drawings.
FIG. 1 is a diagram showing a configuration of a vehicle 1 equipped with an in-vehicle information processing device 10 according to an embodiment.
As shown in FIG. 1, the vehicle 1 equipped with the vehicle-mounted information processing device 10 includes, for example, a front display (FD) 3 and a rear display (RD) 5 connected to the vehicle-mounted information processing device 10. Each of the front display (FD) 3 and the rear display (RD) 5 displays an image generated by the in-vehicle information processing apparatus 10 as described later. The front display (FD) 3 is arranged, for example, on an instrument panel or a dashboard in front of the front seat of the vehicle 1. The rear display (RD) 5 is arranged, for example, on the roof of the vehicle 1 on the rear side of the front seats. The in-vehicle information processing apparatus 10 is arranged, for example, inside the front side of the instrument panel or dashboard in the front portion of the front seat of the vehicle 1.

FIG. 2 is an exploded perspective view showing a partial configuration of the in-vehicle information processing apparatus 10 according to the embodiment. FIG. 3 is a block configuration diagram showing a functional configuration of the in-vehicle information processing apparatus 10 according to the embodiment.
As shown in FIG. 2, the in-vehicle information processing apparatus 10 includes, for example, an audio board 11 including an analog system arranged on the first layer (1F) and a second layer (2F) as a plurality of boards sequentially stacked. ), A multimedia board 13 including a digital system arranged in the third layer (3F), and a sub-board 14 arranged in the fourth layer (4F).

The in-vehicle information processing apparatus 10 has, for example, an upper case 15 and a lower case 16 surrounding the plurality of boards, with the stacking direction of the plurality of boards as the vertical direction and the stacking direction and two directions orthogonal to each other as the front-rear direction and the left-right direction. The front case 17 and the rear plate 18 are provided, and the middle case 19 that separates the upper side and the lower side in the stacking direction is provided.
The in-vehicle information processing device 10 includes a waterproof seal 20 arranged at the upper end of the upper case 15 and a pair of brackets 21 arranged on the left-right side portions (first side portion and second side portion) of the lower case 16. A heat sink 22 arranged on the first side portion, a fan bracket 23 arranged on the second side portion, a fan pad 24, and a fan 25 are provided.

The in-vehicle information processing device 10 includes a wireless LAN antenna 26 arranged in the upper case 15. The wireless LAN antenna 26 is an antenna of various standards such as Wi-Fi and Bluetooth (registered trademark).

The audio board 11 covers a connector bracket 31 used for connecting to each of the interface board 12 and the multimedia board 13, an integrated circuit mounting portion 32, a flexible flat cable 33, and a DC-DC converter (not shown). A shield case 34 is provided.
The interface board 12 includes a connector bracket 35 used for connecting to each of the audio board 11 and the multimedia board 13, and a board fixing portion 36.

The multimedia board 13 includes a board bracket 40, a heat sink 41 arranged between the sub-boards 14, and four shield cases. The four shield cases include a first shield case 42 that covers the SOC (System on Chip) 85 described later, a second shield case 43 that covers the satellite positioning system processing unit 82 described later, and a third shield case 43 that covers the network circuit 84 described later. A shield case 44 and a fourth shield case 45 that covers the image communication unit 87 described later.
The sub-board 14 includes a bracket 46 for a connector used for DTV (Digital television), a shield case 47 that covers a DTV tuner 94 described later, a shield case 48 that covers a DTV digital unit 95 described later, and a heat sink 49 for DTV. Be prepared.

FIG. 3 is a block configuration diagram showing a functional configuration of the in-vehicle information processing apparatus 10 according to the embodiment.
As shown in FIG. 3, the audio board 11 and the interface board 12 are connected by a first connector 50A. The audio board 11 and the multimedia board 13 are connected by a second connector 50B. The interface board 12 and the multimedia board 13 are connected by a third connector 50C. The multimedia board 13 and the sub board 14 are connected by a fourth connector 50D.

The audio board 11 includes a digital interface connector (DIF-CN) 51 for digital communication of audio signals, an expansion connector (Ex3-CN) 52, and a main connector (MAIN-CN) 53.
The digital interface connector (DIF-CN) 51 is, for example, a connector for digital communication of an audio signal such as S / PDIF (Sony Philipps Digital Interface). The digital interface connector (DIF-CN) 51 is connected to, for example, a remote tuner 54 or the like.
The expansion connector (Ex3-CN) 52 is connected to, for example, an external amplifier 55, a microphone 56, a microphone output terminal 57, an active noise canceller (ANC) 58, a meter 59, and the like.
The main connector (MAIN-CN) 53 is connected to, for example, a speaker 60, a central gateway (C-GW) 61, or the like.

The audio board 11 includes a control unit 62 and a signal processing unit 63.
The control unit 62 is, for example, a microcontroller or the like. The signal processing unit 63 is, for example, a digital signal processor (DSP) or the like.

The interface board 12 includes a first expansion connector (Ex1-CN) 64, a second expansion connector (Ex2-CN) 65, and a beacon connector (Beac-CN) 66.
The first expansion connector (Ex1-CN) 64 is connected to, for example, a rear camera 67 that images the rear of the outside world of the vehicle 1.
The second expansion connector (Ex2-CN) 65 is connected to, for example, a travel path camera 68 that images the travel path of the vehicle 1.
The beacon connector (Beac-CN) 66 is connected to, for example, an information receiving device 69 that receives road traffic information by a beacon such as radio waves and light transmitted from an information transmitting device outside the vehicle 1.

The multimedia board 13 includes a predetermined standard bus connector (USB-CN3) 70, a predetermined standard wired LAN connector (ETH-CN) 71, a display connector (DISP-CN) 72, and a first camera. It includes a connector (DCAM-CN1) 73, a second camera connector (DCAM-CN2) 74, and a GNSS connector (GNSS-CN) 75.
The predetermined standard bus connector (USB-CN3) 70 is, for example, a connector for a bus such as USB (Universal Serial Bus). The bus connector (USB-CN3) 70 is connected to, for example, a USB-Box 76 having a plurality of power ports by VBUS, which is a USB power line.
The predetermined standard wired LAN connector (ETH-CN) 71 is, for example, a connector for a wired LAN such as Ethernet. The wired LAN connector (ETH-CN) 71 is connected to, for example, a telematics control unit (TCU: Telematics Control Unit) 77 or a central gateway (C-GW).

The display connector (DISP-CN) 72 is connected to, for example, the front display 3.
The first camera connector (DCAM-CN1) 73 is connected to, for example, an outside world camera 78 that captures the outside world including the front of the vehicle 1 and an interior camera 79 that captures the interior of the vehicle 1.
The second camera connector (DCAM-CN2) 74 is connected to, for example, a multi-view camera 80 that captures the outside world of the vehicle 1 in all directions.
The GNSS connector (GNSS-CN) 75 is a connector for a satellite positioning system (GNSS: Global Navigation Satellite System) such as GPS (Global Positioning System), for example. The GNSS connector (GNSS-CN) 75 is connected to, for example, a satellite positioning system antenna (GNSS antenna) 81.

The multimedia board 13 includes, for example, a wireless LAN antenna 26, a satellite positioning system processing unit (GNSS processing unit) 82, a sensor 83, a network circuit (Ethernet circuit) 84, a SoC85, and a display control unit (DC) 86. And an image communication unit 87.
The satellite positioning system processing unit (GNSS processing unit) 82 is connected to the GNSS connector (GNSS-CN) 75 and the SoC85. The satellite positioning system processing unit (GNSS processing unit) 82 detects the current position of the vehicle 1 based on the positioning signal received by the satellite positioning system antenna (GNSS antenna) 81, and outputs the detection signal to the SoC85.
The sensor 83 is, for example, a gyro sensor for detecting the pitch, roll, yaw, etc. of the vehicle 1, an acceleration sensor for detecting the acceleration of the vehicle 1, and the like, and is connected to the SoC85. The sensor 83 outputs the detection signal to the SoC85.
The network circuit 84 is, for example, an Ethernet circuit.

The SoC85 is an integrated circuit that integrates processing of multimedia such as images and sounds, driving support, and processing of high frequency bands. As shown in FIGS. 1 and 3, the SoC85 has a first interface (D1) 85a for outputting a predetermined first standard image signal for the front display 3 to a display control unit (DC) 86, and a rear display 5 It is provided with a second interface (D2) 85b that outputs an image signal of a predetermined second standard for output to a signal conversion device (BG) 96, which will be described later.
The predetermined first standard of the first interface D1 is, for example, DSI (Display Serial Interface). The predetermined second standard of the second interface D2 is, for example, DP (DisplayPort).
The display control unit 86 processes an image signal of a predetermined first standard output from the first interface D1 of the SoC85. The display control unit 86, for example, synthesizes an image output from various cameras such as the rear camera 67 and an image output from the SoC85.
The image communication unit 87 includes a SER (Serializer) 87a or the like that converts an image signal output from the display control unit 86. The SER87a, for example, converts an image signal into an FPDL (Flat Panel Display Link) signal by serialization. The FPDL signal is inversely converted by a DES (DESerializer: not shown) provided in the front display 3.

The sub-board 14 includes a first bus connector (USB-CN1) 88 and a second bus connector (USB-CN2) 89 of predetermined standards, a DTV connector 90, and a multimedia interface (MIF) connector for output. (MIF-CN) 91 is provided.
The first bus connector (USB-CN1) 88 and the second bus connector (USB-CN2) 89 of a predetermined standard are connectors for buses such as USB (Universal Serial Bus), for example. The first bus connector (USB-CN1) 88 is connected to, for example, the processing device 92 of the toll collection system. The second bus connector (USB-CN2) 89 is connected to, for example, a telematics control unit (TCU: Telematics Control Unit) 77.

The DTV connector 90 is connected to an antenna (DTV antenna) 93 for DTV (Digital television). The DTV connector 90 includes, for example, a plurality of connectors connected to a plurality of antennas.
The multimedia interface (MIF) connector (MIF-CN) 91 is connected to, for example, the rear display 5. The multimedia interface (MIF) is an interface of a predetermined standard for digital communication such as HDMI (registered trademark).

The sub-board 14 includes, for example, a DTV tuner 94 connected to a DTV connector 90, a DTV digital unit 95, and a signal conversion device (BG) 96.
The DTV tuner 94 receives and demodulates the analog signal of the digital broadcast for DTV by the DTV antenna 93, and outputs the digital signal.
The DTV digital unit 95 includes, for example, a decoder 95a that decodes a digital signal output from the DTV tuner 94.
The signal conversion device 96 is, for example, a bridge IC or the like that converts a display interface, and converts a DP (DisplayPort) signal output from the SoC85 into an HDMI (registered trademark) signal.

FIG. 4 is a diagram showing a configuration of a sub-board 14 of the vehicle-mounted information processing apparatus 10 according to the embodiment.
As shown in FIG. 4, the sub-board 14 has a first shield member 97 that surrounds a DTV tuner 94 that processes an analog signal, and a second shield member 98 that surrounds a DTV digital unit 95 that processes a digital signal and a signal conversion device 96. To prepare for. The first shield member 97 and the second shield member 98 are, for example, a grounded ground pattern or the like.
The signal conversion device 96 is arranged at the end of the sub-board 14 in, for example, the second shield member 98. The first bus connector (USB-CN1) 88 and the second bus connector (USB-CN2) 89 of the sub-board 14 are provided, for example, between the DTV tuner 94 and the DTV digital unit 95 and the signal conversion device 96. Be done.

As described above, the sub-board 14 of the vehicle-mounted information processing apparatus 10 of the embodiment includes the second shield member 98 that surrounds the signal conversion device 96 that processes the digital signal, so that the noise of the signal conversion device 96 is second shielded. It is possible to suppress leakage to the outside of the member 98.
In the sub-board 14, the signal conversion device 96 is arranged at the end of the sub-board 14, so that the signal conversion device 96 is arranged at the center of the sub-board 14, for example, as compared with the case where the signal conversion device 96 is arranged at the center of the sub-board 14. It is possible to suppress the noise of 96 from acting on other devices of the sub-board 14.
The second shield member 98 of the sub-board 14 excludes the DTV tuner 94 that receives an analog signal related to digital broadcasting, and surrounds the DTV digital unit 95 that processes the digital signal together with the signal conversion device 96, whereby the DTV digital unit 95 And the noise of the signal conversion device 96 can be suppressed from leaking to the outside of the second shield member 98. By sharing the second shield member 98 with the DTV digital unit 95 and the signal conversion device 96, it is possible to suppress an increase in the cost required for the configuration.

The first bus connector (USB-CN1) 88 and the second bus connector (USB-CN2) 89 of the sub-board 14 are provided between the DTV tuner 94 and the DTV digital unit 95 and the signal conversion device 96. Therefore, it is possible to suppress the noise of the signal conversion device 96 from acting on the DTV tuner 94 that receives the analog signal related to the digital broadcasting.

By arranging the audio board 11 including the analog system and the multimedia board 13 including the digital system in different layers, it is possible to suppress the noise of the multimedia board 13 from acting on the audio board 11.

(Modification example)
Hereinafter, a modified example of the embodiment will be described. The same parts as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified.

(First modification)
In the above-described embodiment, the sub-board 14 is provided with a multimedia interface (MIF) connector (MIF-CN) 91 for output, but is not limited thereto. For example, the sub-board 14A of the first modification is a multimedia interface (MIF) for input instead of the multimedia interface connector (MIF-CN) 91 for output when the rear display 5 is omitted. ) Connector (MIF-CN) 91A may be provided.
FIG. 5 is a diagram showing a configuration of a sub-board 14A of the vehicle-mounted information processing apparatus 10 in the first modification of the embodiment.
As shown in FIG. 5, the outer shape of the sub-board 14A of the first modification is the same as the outer shape of the sub-board 14 of the above-described embodiment. The sub-board 14A of the first modification includes a multimedia interface connector (MIF-CN) 91A for input. The position of the multimedia interface connector (MIF-CN) 91A for input on the sub-board 14A of the first modification and the multimedia interface connector (MIF-CN) for output on the sub-board 14 of the above-described embodiment. ) 91 is the same as the position.
In the sub-board 14A of the first modification, the signal conversion device 96 in the above-described embodiment is omitted. In the first modification, the image signal input from the outside via the input multimedia interface (MIF) connector (MIF-CN) 91A is output to the front display 3 by the SoC85. The image signal input from the outside is, for example, an image signal input by wire communication from a mobile terminal brought in from outside the vehicle.

According to the first modification, the positions of the multimedia interface connectors (MIF-CN) 91 and 91A are the same on the sub-boards 14 and 14A having the same outer shape, so that the manufacturing efficiency can be supported while supporting different functions. Can be improved.

(Second modification)
In the above-described embodiment, the sub-board 14 includes a DTV connector 90, a DTV tuner 94, and a DTV digital unit 95, but is not limited thereto. For example, the sub-board 14B of the second modification may have a configuration corresponding to other digital broadcasting other than DTV.
FIG. 6 is a diagram showing a configuration of a sub-board 14B of the vehicle-mounted information processing apparatus 10 in the second modification of the embodiment.
As shown in FIG. 6, the sub-board 14B of the second modification is, for example, a connector (XM-CN) 99A connected to an antenna for a digital radio such as Sirius XM Radio and a connector (XM-CN) 99A. It is equipped with a tuner 99B to be connected. The outer shape of the sub-board 14B of the second modification is the same as the outer shape of the sub-board 14 of the above-described embodiment. The position of the connector (XM-CN) 99A on the sub-board 14B of the second modification is the same as the position of the multimedia interface connector (MIF-CN) 91 for output on the sub-board 14 of the above-described embodiment. Is.
The signal conversion device 96 of the sub-board 14B of the second modification converts, for example, a DP (DisplayPort) signal of at least one of the audio and the image output from the SoC85 into an HDMI (registered trademark) signal. The output multimedia interface connector (MIF-CN) 91 is connected to, for example, a rear display 5 or an appropriate speaker.

According to the second modification, the positions of the multimedia interface connectors (MIF-CN) 91 are the same on the sub-boards 14 and 14B having the same outer shape, so that the manufacturing efficiency is improved while supporting different functions. Can be made to.

(Third modification example)
In the second modification of the above-described embodiment, the sub-board 14B is provided with the multimedia interface connector (MIF-CN) 91 for output, but the sub-board 14B is not limited thereto. For example, the sub-board 14C of the third modification is a multimedia interface (MIF) for input instead of the multimedia interface connector (MIF-CN) 91 for output when the rear display 5 is omitted. ) Connector (MIF-CN) 91A may be provided.
FIG. 7 is a diagram showing a configuration of a sub-board 14C of the vehicle-mounted information processing apparatus 10 in the third modification of the embodiment.
As shown in FIG. 7, the outer shape of the sub-board 14C of the third modification is the same as the outer shape of the sub-board 14B of the second modification of the above-described embodiment. The sub-board 14C of the third modification includes a multimedia interface connector (MIF-CN) 91A for input. The position of the multimedia interface connector (MIF-CN) 91A for input on the sub-board 14C of the third modification and the multimedia interface connector for output of the sub-board 14B of the second modification of the above-described embodiment. It is the same as the position of (MIF-CN) 91.
In the sub-board 14C of the third modification, the signal conversion device 96 in the second modification of the above-described embodiment is omitted. In the third modification, the image signal input from the outside via the input multimedia interface (MIF) connector (MIF-CN) 91A is output to the front display 3 by the SoC85. The image signal input from the outside is, for example, an image signal input by wire communication from a mobile terminal brought in from outside the vehicle.

According to the third modification, the positions of the multimedia interface connectors (MIF-CN) 91 and 91A are the same on the sub-boards 14B and 14C having the same outer shape, so that the manufacturing efficiency can be supported while supporting different functions. Can be improved.

The embodiments of the present invention are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1 ... Vehicle, 3 ... 5 ... 10 ... In-vehicle information processing device, 11 ... Audio board, 12 ... Interface board, 13 ... Multimedia board, 14, 14B ... Sub board (electronic circuit board, second electronic circuit board) , 14A, 14C ... Sub-board (electronic circuit board, first electronic circuit board), 88 ... First bus connector (bus interface section), 89 ... Second bus connector (bus interface section), 90 ... DTV connector (Receiver), 91 ... Connector for multimedia interface for output (digital communication connector for output), 91A ... Connector for multimedia interface for input (digital communication connector for input), 94 ... DTV tuner (receiver) ), 95 ... DTV digital unit (digital signal processing unit), 96 ... signal conversion device, 98 ... second shield member (shield member), 99A ... connector (reception unit), 99B ... tuner (reception unit).

Claims (6)

An in-vehicle information processing device including an electronic circuit board having a digital communication connector of at least one of a predetermined standard for input and output.
At least the outer shape of the first electronic circuit board, which is an electronic circuit board having the digital communication connector for the input, and the outer shape of the second electronic circuit board, which is the electronic circuit board having the digital communication connector for the output, are the same. It is characterized in that the position of the digital communication connector for the input on the first electronic circuit board and the position of the digital communication connector for the output on the second electronic circuit board are the same. In-vehicle information processing device. The electronic circuit board is
A signal conversion device that converts between a signal of a first digital communication which is a digital communication of a predetermined standard and a signal of a second digital communication of a standard different from that of the first digital communication.
The vehicle-mounted information processing device according to claim 1, further comprising a shield member surrounding the signal conversion device. The vehicle-mounted information processing device according to claim 2, wherein the signal conversion device is arranged at an end portion of the second electronic circuit board. The electronic circuit board includes a digital broadcast receiving unit and a digital signal processing unit.
The vehicle-mounted information processing device according to claim 2 or 3, wherein the shield member surrounds the digital signal processing unit. The vehicle-mounted information processing according to claim 4, wherein the second electronic circuit board includes a predetermined bus interface unit provided between the receiving unit, the digital signal processing unit, and the signal conversion device. Device. As a plurality of boards sequentially stacked, an audio board including an analog system arranged in the first layer, an interface board arranged in the second layer, and a multimedia including a digital system arranged in the third layer. The vehicle-mounted information processing device according to any one of claims 1 to 5, further comprising a substrate and the electronic circuit board arranged in the fourth layer.

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