CN107071323A

CN107071323A - Equipment choosing method, interface box and in-vehicle display system

Info

Publication number: CN107071323A
Application number: CN201710017925.0A
Authority: CN
Inventors: 刘国林
Original assignee: Mcpo Karan Photoelectric Technology (beijing) Co Ltd
Current assignee: Mcpo Karan Photoelectric Technology (beijing) Co Ltd
Priority date: 2017-01-10
Filing date: 2017-01-10
Publication date: 2017-08-18
Anticipated expiration: 2037-01-10
Also published as: CN107071323B

Abstract

The embodiment of the present invention provides a kind of equipment choosing method, interface box and in-vehicle display system.Wherein, method includes the steps：Receive the control signal selected for equipment；According to the control signal, from multiple equipment, selection target equipment；First image of the target device collection/generation is sent to car-mounted display equipment, to be showed in the car-mounted display equipment；Wherein, multiple vehicle-mounted peripheral hardwares access vehicle by the interface box.Using technical scheme provided in an embodiment of the present invention, user only needs to progress shirtsleeve operation and achieves that the vision signal inserted in existing car-mounted display equipment in addition to genuine is set, and can be between multiple vehicle-mounted peripheral hardwares or between vehicle-mounted peripheral hardware and former vehicle device vision signal switch, so that the display content of existing car-mounted display equipment is more various, it is user-friendly.

Description

Equipment selection method, interface box and vehicle-mounted display system

Technical Field

The invention relates to the technical field of computers, in particular to an equipment selection method, an interface box and a vehicle-mounted display system.

Background

At present, people have stronger dependence on automobiles, and often need to drive to work, go out of a journey and the like. Many existing automobiles are provided with display screens, and people can view navigation maps, watch videos and the like through the display screens. The existing vehicle-mounted display screen only provides functions in the design scheme of an automobile manufacturer, and the contents which can be displayed by a plurality of vehicles with special display screens are very limited.

However, in order to meet the increasing use requirements of people, many vehicle-mounted peripheral products, such as a navigator, a driving recorder, a 360-degree vehicle blind area image and the like, appear on the market, and the brands and the models of the vehicle-mounted peripheral products are different from each other. When each automobile leaves the factory, supportable vehicle-mounted peripheral products configured in the vehicle-mounted system are limited. A user wants to upgrade the vehicle-mounted display equipment on the original basis, and needs to find an original factory for upgrading. And sometimes some functions may not be implemented due to system support issues. Therefore, the existing vehicle system has the problems of poor expandability and inconvenient upgrading.

Disclosure of Invention

The inventor finds that if a user performs simple operation (for example, presses a key), the acquired/generated image of the vehicle-mounted peripheral equipment can be displayed by using the vehicle-mounted display equipment, and switching among the plurality of vehicle-mounted peripheral equipment can be realized, so that the user can use the vehicle-mounted peripheral equipment conveniently. Based on the above inventive concept, the present invention provides the following embodiments.

In one embodiment of the present invention, there is provided an interface box including: the device comprises a box body, a bus interface arranged on the box body, and a decoder, a control unit and an interface component which are accommodated in the box body; wherein,

the bus interface is used for being externally connected with a vehicle-mounted bus so as to provide working voltage for the decoder, the control unit and the interface component by using a vehicle-mounted power supply and realize data transmission between the decoder and vehicle-mounted display equipment connected to the vehicle-mounted bus;

the output end of the decoder is connected with the bus interface;

one end of the interface component is provided with a plurality of interfaces used for being respectively connected with different vehicle-mounted peripherals, and the other end of the interface component is connected with the input end of the decoder;

the control unit is connected with the interface component and is used for controlling part of the plurality of interfaces to be communicated with the decoder.

Optionally, the box body comprises two opposite first side walls and second side walls;

the bus interface is arranged on the first side wall;

the second side wall is provided with a through hole, and the plurality of interfaces extend out of the box body through the through hole;

the cartridge body includes: an upper cover and a lower cover; wherein,

the upper cover comprises an upper panel and a first vertical plate arranged along the edge of the upper panel in a surrounding manner;

the lower cover comprises a lower panel and a second vertical plate arranged along the edge of the lower panel in a surrounding manner;

the upper cover is buckled on the lower cover;

fixing holes are formed in the corresponding positions of the first vertical plate and the second vertical plate;

and the upper cover and the lower cover are fixedly connected through the fixing holes by fixing screws.

Optionally, the interface box further includes: control keys and audio and video wiring harnesses;

the control key is arranged outside the box body and is connected into the bus interface through a lead;

after the control key is touched, a switching instruction is sent to the control unit through the bus interface, so that the control unit decodes a signal of a specified vehicle-mounted peripheral accessed through the interface component through the decoder and sends the decoded signal to the vehicle-mounted display equipment;

the audio and video wiring harness comprises three connectors, namely a first connector, a second connector and a third connector;

the first connector is connected with the bus interface;

the second connector and the third connector are used for being connected into the vehicle-mounted bus.

Optionally, the control unit is a dial switch;

a plurality of dial terminals are arranged on the dial switch;

at least one dial terminal in the plurality of dial terminals respectively corresponds to a corresponding number of interfaces in the plurality of interfaces;

when the dial terminal is at a first position, an interface corresponding to the dial terminal is in a gating state;

when the dial terminal is at the second position, the interface corresponding to the dial terminal is in a closed state;

the interface box also comprises: a work indicator light;

the working indicator lamp is arranged on the outer wall of the box body;

the working indicator light is connected with the decoder, the control unit or the interface component and is used for being lightened when the decoder, the control unit or the interface component is in a normal working state;

the working indicator lamp is arranged on the outer wall provided with the bus interface;

the interface further comprises: a wireless network unit;

the wireless network unit is connected with the control unit and used for sending the received wireless signals to the control unit so that the control unit controls one of the interfaces to be communicated with the decoder according to the wireless signals.

In one embodiment of the present invention, there is provided a device selection method performed on an interface box side, the method including:

receiving a control signal for device selection;

selecting a target device from a plurality of devices according to the control signal;

sending the first image acquired/generated by the target equipment to vehicle-mounted display equipment so as to display the first image on the vehicle-mounted display equipment;

the plurality of devices are a plurality of vehicle-mounted peripherals, or the plurality of devices comprise at least one vehicle-mounted peripheral and at least one vehicle-mounted device; the vehicle-mounted external device is a device which is connected to the vehicle where the vehicle-mounted display device is located through the interface box.

Optionally, the method further comprises:

receiving a driving signal generated by a vehicle in the driving process, and determining the driving state of the vehicle according to the driving signal;

acquiring an equipment identifier corresponding to the driving state according to a preset corresponding relation between the driving state and the equipment identifier, and selecting equipment with the equipment identifier from the plurality of equipment as the target equipment;

and sending the first image acquired/generated by the target equipment to vehicle-mounted display equipment so that the vehicle-mounted display equipment switches and displays the image displayed by default by the vehicle into the first image.

Optionally, the method further comprises:

receiving a control signal generated by a control key, wherein the control key comprises a first control key on a vehicle or a second control key on the interface box;

acquiring peripheral identifiers carried in the control signals, selecting the vehicle-mounted peripherals with the peripheral identifiers from the plurality of vehicle-mounted peripherals as the target vehicle-mounted peripherals, or acquiring the vehicle-mounted peripherals switched for the latest time in response to the control signals, and selecting the vehicle-mounted peripherals which are sequentially arranged behind the vehicle-mounted peripherals switched for the latest time from the plurality of vehicle-mounted peripherals as the target vehicle-mounted peripherals according to the switching sequence of the plurality of vehicle-mounted peripherals;

and sending the first image acquired/generated by the target vehicle-mounted peripheral to vehicle-mounted display equipment so that the vehicle-mounted display equipment switches and displays the default image of the original vehicle into the first image.

Optionally, the method further comprises:

receiving a switching instruction generated by triggering the control key;

in response to the switching instruction, according to the switching sequence of each device in the multiple devices, finding out a device with a switching sequence behind the target device from the multiple devices as a new target device;

and sending the second image acquired/generated by the new target equipment to the vehicle-mounted display equipment so as to enable the vehicle-mounted display equipment to switch and display the currently displayed first image into the second image.

Optionally, the method further comprises:

if the target vehicle-mounted peripheral equipment is not the equipment which needs to be started in the driving state, selecting new target vehicle-mounted peripheral equipment which needs to be started in the driving state from the plurality of vehicle-mounted peripheral equipment, and sending a second image acquired/generated by the new target vehicle-mounted peripheral equipment to vehicle-mounted display equipment so that the vehicle-mounted display equipment switches and displays the first image into a second image; or

And if the new target vehicle-mounted peripheral equipment is not selected from the plurality of vehicle-mounted peripheral equipment, maintaining the first image acquired/generated by the target vehicle-mounted peripheral equipment to be sent to the vehicle-mounted display equipment, or sending a display recovery prompt to a vehicle-mounted controller so as to recover the display content of the vehicle-mounted display equipment to the default display content of the original vehicle.

In one embodiment of the present invention, there is provided an in-vehicle display system including:

the interface box provided above;

an in-vehicle display device;

a vehicle-mounted bus;

at least one in-vehicle peripheral;

the interface box is connected to the vehicle-mounted bus through a connecting line; the vehicle-mounted display equipment is accessed to the vehicle-mounted bus; the at least one vehicle-mounted peripheral is connected with the interface box.

By adopting the technical scheme provided by the embodiment of the invention, the control signal for equipment selection is received; selecting a target device from a plurality of devices according to the control signal; and sending the first image acquired/generated by the target equipment to vehicle-mounted display equipment so as to display the first image on the vehicle-mounted display equipment. For example, a user can display an image acquired/generated by a vehicle-mounted peripheral accessed to the vehicle through the interface box on the vehicle-mounted display device by only touching an existing first control key on the vehicle or a second control key on the interface box, or automatically start a required target device according to the driving state of the vehicle in the driving process of the vehicle, and then send the image acquired/generated by the target device to the vehicle-mounted display device for display. By using the interface box provided by the embodiment of the invention, video signals except for original factory settings are inserted into the existing vehicle-mounted display equipment, and the video signals can be switched among a plurality of vehicle-mounted peripherals or between the vehicle-mounted peripherals and the original vehicle equipment, so that the display contents of the existing vehicle-mounted display equipment are more various, and the display compatibility of the vehicle is improved. And the user does not need to manually open a screen for checking the corresponding vehicle-mounted peripheral equipment, so that the driving safety is facilitated, and the use by the user is facilitated. The interface box of the embodiment of the invention has simple connecting interface, convenient installation and easy operation, and simplifies the difficulty of vehicle upgrading.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a block diagram of an internal structure of an interface box according to an embodiment of the present invention;

fig. 2 is a schematic external structural diagram of an interface box according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a box body in an interface box according to an embodiment of the present invention;

FIG. 4 is a block diagram of an interface box according to another embodiment of the present invention;

fig. 5 is a schematic flow chart illustrating a device selection method according to an embodiment of the present invention;

fig. 6 is a schematic flow chart illustrating a device selection method according to another embodiment of the present invention;

fig. 7 is a schematic flowchart of a device selection method according to an embodiment of the present invention;

fig. 8 is a schematic flowchart of a device selection method according to another embodiment of the present invention;

fig. 9 is a schematic structural diagram of a vehicle-mounted display system according to an 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 drawings in the embodiments of the present invention.

In some of the flows described in the specification, claims, and above-described figures of the present invention, a number of operations are included that occur in a particular order, which operations may be performed out of order or in parallel as they occur herein. The sequence numbers of the operations, e.g., 101, 102, etc., are used merely to distinguish between the various operations, and do not represent any order of execution per se. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.

The technical solution 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. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme provided by the embodiment of the invention can be realized by the interface box provided by the embodiment of the invention, in particular to receiving a control signal for equipment selection; selecting a target device from a plurality of devices according to the control signal; sending the first image acquired/generated by the target equipment to vehicle-mounted display equipment so as to display the first image on the vehicle-mounted display equipment; the plurality of devices are a plurality of vehicle-mounted peripherals, or the plurality of devices comprise at least one vehicle-mounted peripheral and at least one vehicle-mounted device; the vehicle-mounted external device is a device which is connected to the vehicle where the vehicle-mounted display device is located through the interface box. Can insert extra video signal in current on-vehicle display device to realize switching the video signal between multiple on-vehicle peripheral hardware or on-vehicle peripheral hardware and former car image acquisition equipment, thereby bring the convenience for the vehicle user. In addition, the interface box provided by the embodiment of the invention has the advantages of simple connecting interface, convenience in installation and capability of simplifying the difficulty of vehicle upgrading.

Fig. 1 is a block diagram illustrating an internal structure of an interface box according to an embodiment of the present invention, and fig. 2 is a schematic diagram illustrating an external structure of an interface box according to an embodiment of the present invention, where as shown in fig. 1 and 2, the interface box includes: a cartridge 10, a bus interface 11 provided on the cartridge 10, and a decoder (not shown in fig. 1), a control unit 13, and an interface assembly 14 accommodated within the cartridge 10.

As shown in fig. 2, the bus interface 11 is used for externally connecting a vehicle-mounted bus to provide an operating voltage to the decoder 12, the control unit 13 and the interface component 14 by using a vehicle-mounted power supply, and to realize data transmission between the decoder 12 and a vehicle-mounted display device connected to the vehicle-mounted bus.

The decoder 12 includes an output and an input. Wherein, the output terminal of the decoder 12 is connected to the bus interface 11, and the input terminal of the decoder 12 is connected to the interface component 14.

One end of the interface component 14 is provided with a plurality of interfaces 141 (shown in fig. 1) for respectively connecting different vehicle-mounted peripherals, and the other end is connected with the input end of the decoder 12.

The control unit 13 is connected to the interface module 14. The control unit 13 is configured to control a part of the plurality of interfaces 141 to be connected to the decoder 12.

Further, as shown in fig. 2, the box 10 includes two opposite first and second sidewalls 101 and 102. Wherein the bus interface 11 is disposed on the first sidewall 101. The second sidewall 102 is provided with a through hole. The plurality of ports 141 extend out of the case 10 through the through holes. The bus interface 11 and the plurality of interfaces 141 are respectively arranged at two sides of the box body 10, so that the connection of data lines is facilitated.

Further, as shown in fig. 2, the interface box provided in this embodiment may further include an audio/video wiring harness 15. In specific implementation, the audio/video wiring harness 15 may be rca (radio Corporation of american) wiring harness. Of course, the selection of the audio/video wiring harness is not specifically limited in this embodiment. As shown in fig. 2, the audio/video connector harness 15 includes three connectors, namely a first connector 151, a second connector 152 and a third connector 153; the first connector 151 is connected to the bus interface 11; the second connector 152 and the third connector 153 are both used for accessing the vehicle bus.

Here, it should be noted that: the vehicle bus mentioned in this embodiment may be: CAN (Controller Area Network) bus, VAN (Vehicle Area Network) bus, LIN (Local Interconnect Network) bus, and the like, which are not particularly limited.

Further, as shown in fig. 2 and 4, the interface box provided by the present embodiment may further include a control key 16. The control key 16 is arranged outside the box body 10 and is connected to the bus interface 11 through a lead. After the control key 13 is touched, a switching instruction is sent to the control unit 13 through the bus interface 11, so that the control unit 13 decodes a signal of a specified vehicle-mounted peripheral accessed through the interface component 14 through the decoder 12 and sends the decoded signal to the vehicle-mounted display device accessed to the vehicle-mounted bus, and an image generated by the specified vehicle-mounted peripheral is presented on the vehicle-mounted display device. By additionally arranging the control key 16 in the interface box, a manual switching touch mode can be added for a user, and the operation is convenient. For example, after the interface box provided by this embodiment is connected to a vehicle, an existing key (e.g., an enter key or a key labeled with NAV) on the vehicle may be set as a switch key. When the original vehicle key can not be switched, the control key can be used as a standby key.

In an implementable manner, the control unit in the above embodiments may select a dip switch. And a plurality of dial terminals are arranged on the dial switch. At least one of the plurality of dial-up terminals respectively corresponds to a corresponding number of the plurality of interfaces. When the dial terminal is at the first position, the interface corresponding to the dial terminal is in a gating state. When the dial terminal is at the second position, the interface corresponding to the dial terminal is in a closed state.

For example, there are 8 dial terminals, which are dial terminal 1, dial terminal 2, dial terminal 3, dial terminal 4, dial terminal 5, dial terminal 6, dial terminal 7 and dial terminal 8. The interface component comprises 4 interfaces, namely an interface 1, an interface 2, an interface 3 and an interface 4.

The dial terminal 1 can correspond to the interface 1, the dial terminal 2 can correspond to the interface 2, the dial terminal 3 can correspond to the interface 3, the dial terminal 4 can correspond to the control key, the dial terminal 5 can correspond to the interface 4, and the dial terminal 6, the dial terminal 7 and the dial terminal 8 can be used as expansion terminals to be idle. The dial terminal may have two positions, a first position (a down position) and a second position (a up position).

For example, when the dial terminal 1 is in the dial-down position, the corresponding interface 1 is in the gated state (i.e., the interface 1 is in communication with the decoder). When the dial terminal 2 is in the dial-up position, the corresponding interface 2 is in the off state (i.e., the interface 1 is disconnected from the decoder).

The interface box of the present embodiment sets the operation state (on or off) of each path by the dial switch. At the time of installation, only one or more of the multiple video inputs may be used, so that the user can set the dial switch to turn off the unused channels. Therefore, when the user performs the cycle switching, the user only needs to switch in the channel set by the dial switch.

For example, after the interface box provided by this embodiment is connected to a vehicle, a user may set a certain existing key (e.g., an enter key or a key labeled with NAV) on the vehicle as a switch key. The dial switch can be switched back and forth in a plurality of set channels when the user touches the switching key once.

For example: suppose that there are 3 channels set by the dial switch, and the 3 channels are respectively connected: former car image equipment, vehicle event data recorder and 360 degrees image equipment. The user touches the switching key for the first time, and an image generated by the original vehicle image equipment is displayed on the original vehicle display screen; the user touches the switching key for the second time, and the original vehicle display screen switches and displays the image generated by the automobile data recorder; and the user touches the switching key for the third time, and the original vehicle display screen switches and displays the image generated by the 360-degree image equipment.

As shown in fig. 2, the interface box provided by the present embodiment may further include a work indicator lamp 17. The work indicator light 17 is arranged on the outer wall of the box body 10. For example, the operation indicator lamp 17 is provided on an outer wall provided with the bus interface 44. The working indicator light 17 is connected to the decoder, the control unit or the interface component, and is configured to light up when the decoder, the control unit or the interface component is in a normal working state. Through setting up work pilot lamp, be convenient for observe whether corresponding part is in normal operating condition. In specific implementation, only one or a plurality of work indicator lamps can be arranged; in this embodiment, the number of the operation indicator lamps is not particularly limited.

As shown in fig. 3, in the interface box provided in this embodiment, the box body 10 may include: an upper cover 103 and a lower cover 104. The upper cover 103 includes an upper panel 1031 and a first vertical plate 1032 circumferentially disposed along an edge of the upper panel 1031. The lower cover 104 includes a lower panel 1041 and a second vertical plate 1042 arranged around the edge of the lower panel. The upper cover 103 is fastened to the lower cover 104. Fixing holes are arranged at corresponding positions of the first vertical plate 1032 and the second vertical plate 1042. The fixing screws fixedly connect the upper cover 103 and the lower cover 104 through the fixing holes.

As shown in fig. 4, the interface box provided in this embodiment may further include a wireless network unit 17. The wireless network unit 17 is connected to the control unit 13, and is configured to send a received wireless signal to the control unit 13, so that the control unit 13 controls one of the interfaces to be connected to the decoder 12 according to the wireless signal.

The interface box provided by the embodiment can decode the image generated by the vehicle-mounted peripheral accessed through the interface component into the image format supported by the vehicle by arranging the decoder, and sends the decoded image to the vehicle-mounted display device for display, so that the connection requirements of different types of vehicle-mounted peripherals are met, and the expandability of the vehicle is improved. In addition, the interface box provided by the embodiment can be used for inserting additional video signals into the existing vehicle-mounted display equipment so as to realize the switching of the video signals among various vehicle-mounted peripherals or between the vehicle-mounted peripherals and the original vehicle image acquisition equipment, thereby bringing convenience to vehicle users. In addition, the interface box that this embodiment provided connects the interface simply, simple to operate, easily operation has simplified the degree of difficulty of vehicle upgrading.

Fig. 5 is a flowchart illustrating a device selection method according to an embodiment of the present invention. The technical scheme provided by the embodiment of the invention can be executed at the interface box side. As shown in fig. 5, the method includes:

101. and receiving a running signal generated by the vehicle during running.

102. And determining the running state of the vehicle according to the running signal.

103. Selecting a target device to be activated in the driving state from the plurality of devices.

104. And the first image acquired/generated by the target equipment is sent to vehicle-mounted display equipment so as to be displayed on the vehicle-mounted display equipment.

Wherein the plurality of devices may be a plurality of vehicle mounted peripherals, such as a vehicle event recorder, a navigator, a night vision device, 360 degree blind spot images, and the like. The vehicle-mounted external device is a device which is connected to the vehicle through an interface box. The interface box can be connected to the vehicle by connecting to the vehicle bus. Alternatively, the plurality of devices may include at least one in-vehicle peripheral and at least one in-vehicle device. The vehicle-mounted equipment is functional equipment carried by the vehicle when the original vehicle leaves a factory.

In the foregoing 101, the driving signal may be generated by a driver touching a driving lever, a steering wheel, and/or a steering lamp lever, etc.; of course, the gyroscope may be generated by monitoring the driving posture of the vehicle in the vehicle with the gyroscope. For example, when the driving gear is placed in a forward gear, the generated driving signal is a forward signal; when the driving gear is placed in a reverse gear, the generated driving signal is a reverse signal; when the driving gear is placed in the driving gear, and the steering lamp gear is placed in a first position (for example, is dialed to the upper side) or the steering wheel rotates clockwise, the generated driving signal is a forward driving and right steering signal; when the driving gear is placed in the driving gear, and the steering lamp gear is placed in a second position (for example, is dialed downwards) or the steering wheel rotates anticlockwise, the driving signals are forward driving and left steering signals; when the driving gear is placed in a reverse gear and the steering wheel rotates clockwise, the generated driving signals are reverse combination right steering signals; when the driving gear is placed in a reverse gear and the steering wheel rotates anticlockwise, the generated driving signals are reverse and left steering signals.

In one implementation, the above 102 may determine the driving state of the vehicle by recognizing the driving signal. Each driving signal has specific signal characteristics, namely, the driving state of the current vehicle can be determined in a signal identification mode. For example, if the travel signal is identified as a forward travel signal (i.e., the vehicle gear is to be in the driving gear), it may be determined that the vehicle is currently in a forward travel state; if the driving signal is identified as a reverse signal (namely the vehicle gear shift is in a reverse gear), the vehicle can be determined to be in a reverse state currently; if the driving signal is identified as a forward combined left-turning signal, the vehicle can be determined to be in a forward left-turning state currently; if the travel signal is identified as the forward combined right steering signal, the vehicle can be determined to be in a forward right turning state currently. It should be noted here that the forward merging left turn signal can be understood as: the left turn signal generated in the forward traveling state, or the left turn signal generated after the forward traveling signal. Likewise, a forward left steering signal is understood to mean a right steering signal generated in the driving state or a right steering signal generated after the forward signal. In addition, the vehicle driving state includes a state of reversing and steering in addition to the above state. The original vehicle is provided with a vehicle backing image, the backing image can only collect images right behind the vehicle, and if a driver needs to turn left or right at the moment, the added vehicle-mounted peripheral (namely, a 360-degree blind area image) needs to be called to observe images on two sides of the vehicle. The vehicle is in a reverse combination steering state, namely the vehicle gear is in a reverse gear, and the steering wheel of the vehicle is in a rotating state. The driving gear handle can generate a reverse signal when being in a reverse gear, and the steering wheel can generate a corresponding forward combined steering signal when rotating in the reverse process. That is, the reverse combination of the steering signals can be understood as follows: the steering signal generated in the reverse state, or the steering signal generated after the reverse signal. At the moment, the driving state is determined to be a reversing combined steering state according to the reversing combined steering signal. The reversing combined steering signal is divided into a reversing combined left steering signal and a reversing combined right steering signal. Corresponding to the combination of left steering signals and right steering signals for backing, the determined driving state is divided into: the reversing and the left steering combining state and the reversing and the right steering combining state.

In the above 103, the plurality of devices may all be vehicle peripherals, or may include a part of vehicle-mounted devices and a part of vehicle-mounted peripherals. In the implementation, corresponding devices can be configured for different driving states in advance. For example, a plurality of driving states and respective corresponding device identifiers are manually set through the association setting interface, and then the plurality of driving states and the respective corresponding device identifiers are stored in an associated manner according to the setting. Assuming that the equipment corresponding to the vehicle advancing state is a vehicle event data recorder; the equipment corresponding to the backing state is a backing image; the equipment corresponding to the forward merging left steering state and the forward merging right steering state is a 360-degree blind area image; the equipment corresponding to the reversing combination left-turning state and the reversing combination right-turning state is a 360-degree blind area image. What needs to be added here is: the 360-degree blind area image comprises a plurality of cameras so as to collect 360-degree images of the vehicle; therefore, when the vehicle is in the forward-combination left-steering state, the forward-combination right-steering state, the reverse-combination left-steering state and the reverse-combination right-steering state, which one or more cameras in the 360-degree blind area images are respectively started can also be set by the vehicle. The specific setting can be according to the actual driving demand, and the embodiment of the present invention is not limited to this specifically.

After the corresponding relationship between the driving status and the device identifier is set, 103 in the above embodiment may implement the selection of the target device according to the corresponding relationship. That is, the above 103 can be realized by the following method:

acquiring an equipment identifier corresponding to a running state according to a preset corresponding relation between the running state and the equipment identifier;

selecting a device having the device identification as the target device from the plurality of devices.

In the step 104, in a specific implementation, the first image acquired/generated by the target device may be sent to the vehicle-mounted controller through the vehicle-mounted bus, and then the vehicle-mounted controller controls the vehicle-mounted display device to display the first image. After receiving the first image through a vehicle-mounted bus, the vehicle-mounted controller sends a display instruction carrying the first image to the vehicle-mounted display device, so that the vehicle-mounted display device switches a display picture to the first image.

According to the technical scheme provided by the embodiment, the required target equipment is automatically started according to the running state of the vehicle in the running process of the vehicle, and then the image acquired/generated by the target equipment is sent to the vehicle-mounted display equipment for display, so that the use of a user is greatly facilitated, the user does not need to manually start and check the screen of the corresponding vehicle-mounted peripheral equipment, and the driving safety is facilitated; in addition, by adopting the technical scheme provided by the embodiment of the invention, the video signals (such as the video signals generated by the vehicle-mounted peripheral equipment which is added manually) except the original factory setting are inserted into the existing vehicle-mounted display equipment, and the video signals can be switched among a plurality of vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle equipment according to the driving state of the vehicle, so that the display contents of the existing vehicle-mounted display equipment are more diversified, and the display compatibility of the vehicle is improved.

Fig. 6 is a flowchart illustrating a device selection method according to another embodiment of the present invention. As shown in fig. 6, the method provided in this embodiment includes:

201. and receiving a running signal generated by the vehicle during running.

202. And determining the running state of the vehicle according to the running signal.

203. And acquiring the equipment identifier corresponding to the running state according to the corresponding relation between the preset running state and the equipment identifier.

204. Selecting a device having the device identification as the target device from the plurality of devices.

205. And if the target equipment is selected from the plurality of equipment, sending the first image acquired by the target equipment to vehicle-mounted display equipment so as to display the first image on the vehicle-mounted display equipment.

206. And if the target equipment is not selected from the plurality of equipment, sending a display recovery prompt to an on-vehicle controller so as to recover the display content of the on-vehicle display equipment to the display content of the default setting of the original vehicle.

207. And receiving a switching instruction generated by triggering the control key.

208. And in response to the switching instruction, according to the switching sequence of each device in the plurality of devices, finding out a device with the switching sequence behind the target device from the plurality of devices as a new target device.

209. And sending the second image acquired/generated by the new target equipment to the vehicle-mounted display equipment so as to enable the vehicle-mounted display equipment to switch and display the currently displayed first image into the second image.

For the above 201-205, reference may be made to the description of the foregoing embodiments, which are not repeated herein.

As mentioned above 206, when the target device is not selected from the plurality of devices, the display content of the default setting of the original vehicle, such as the navigation image, the default interface, etc., can be restored on the vehicle-mounted display device.

207, the control key may be an existing control key on the vehicle, for example: and a key for marking NAV on the carriage return control or the vehicle. The control key is set in advance, a signal generated by touching the control key is associated with a switching instruction, so that when a user triggers an existing control of a vehicle, a triggering signal generated by the existing control is converted into the switching instruction, the switching instruction is sent to an interface box, the interface box sends a collecting instruction to the vehicle peripheral equipment, and a second image collected by the peripheral equipment is sent to the vehicle-mounted display equipment for display. Alternatively, the control key may be the control key of the above-mentioned interface box. As shown in fig. 2, the control key is disposed outside the box body and is connected to the bus interface of the interface box through a wire. After the control key 16 is touched, a switching instruction is sent to the control unit 13 through the bus interface 11, so that the control unit 13 decodes a signal of a specified vehicle-mounted peripheral accessed through the interface component 14 through the decoder 12 and sends the decoded signal to the vehicle-mounted display device accessed to the vehicle-mounted bus, and an image generated by the specified vehicle-mounted peripheral is presented on the vehicle-mounted display device.

By additionally arranging the control key 16 in the interface box, a manual switching touch mode can be added for a user, and the operation is convenient. For example, after the interface box provided by this embodiment is connected to a vehicle, an existing key (e.g., an enter key or a key labeled with NAV) on the vehicle may be set as a switch key. When the original vehicle key can not be switched, the control key can be used as a standby key.

In 208, the switching order of each of the plurality of devices may be preset. For example, the user touches the primary control key to switch the primary device. For example, the switching order of the devices is: device 1(360 degree camera), device 2 (vehicle event data recorder), device 3 (navigator). The user touches the control key for the first time and switches to the equipment 1; the user touches the control key for the second time and switches to the equipment 2; and the user touches the control key for the third time and switches to the equipment 3.

Or, the switching instruction carries an identifier of the target device to be switched. For example, existing control keys on the vehicle are previously associated with different devices. When a user touches an enter key, the corresponding equipment is a navigator; when the user touches the NAV control key, the corresponding equipment is a vehicle event data recorder and the like. For this case, the target device to be switched may be determined according to the identifier carried in the switching instruction. And then the image collected or generated by the target device is sent to the vehicle-mounted display device for display.

It should be noted that: the execution subjects of the steps of the method provided by the above embodiments may be the same device, or different devices may be used as the execution subjects of the method. For example, the execution subjects of steps 101 to 103 may be device a; for another example, the execution subject of steps 101 and 102 may be device a, and the execution subject of step 103 may be device B; and so on.

Fig. 7 is a schematic flow chart of an apparatus selection method according to an embodiment of the present invention, and similarly, the technical solution according to the embodiment of the present invention may be implemented on an interface box side, as shown in fig. 7, including:

301. and receiving a control signal generated by touching a first control key on the vehicle or a second control key on the interface box.

302. And selecting the target vehicle-mounted peripheral equipment from the plurality of vehicle-mounted peripheral equipment according to the control signal.

303. And sending the first image acquired/generated by the target vehicle-mounted peripheral to vehicle-mounted display equipment so that the vehicle-mounted display equipment switches and displays the default image of the original vehicle into the first image.

And the plurality of vehicle-mounted peripherals are connected to the vehicle through the interface box. The vehicle-mounted peripheral equipment can be a vehicle traveling data recorder, a blind area image device, a backing image device, a 360-degree image device, a night vision device and the like; of course, the present invention may also be a smart phone, a notebook computer, etc., and the specific form of the vehicle-mounted peripheral device is not particularly limited.

In the above 301, the first control key may be an existing enter control key on the vehicle or a key marked with NAV on the vehicle, and the embodiment of the present invention is not limited thereto. In practical application, a user may select an existing control key on a vehicle as the first control key in advance, and set a corresponding response function from an original default setting function of the vehicle as the function in this embodiment, that is, when the user touches the first control key, the response function of the first control key is not the function set by the original vehicle, but is the function provided in this embodiment to select a target vehicle-mounted peripheral from a plurality of vehicle-mounted peripherals. Currently, the user can also select a function of the target vehicle-mounted peripheral from the plurality of vehicle-mounted peripherals by means of a second control key on the touch interface box. The interface box is connected with a vehicle through a vehicle-mounted bus, the vehicle-mounted peripherals are connected with the vehicle through the interface box, and images acquired/generated by the vehicle-mounted peripherals are sent to the vehicle-mounted display equipment through the interface box so as to switch video signals among the plurality of vehicle-mounted peripherals or between the vehicle-mounted peripherals and original vehicle equipment.

In an implementation, the first control key may be provided in one or more. When the number of the first control keys is multiple, each first control key can correspond to one vehicle-mounted peripheral. Therefore, the user can touch the first control key corresponding to the vehicle-mounted peripheral which is required to be started according to the selection of the user. For example, the enter key corresponds to a 360-degree blind area image; the key marked with the NAV corresponds to the night vision device; in this way, if the user touches the enter key, a target vehicle-mounted peripheral selected from the plurality of vehicle-mounted peripherals is set as a 360-degree blind area image; and if the key of the NAV is touched, selecting a target vehicle-mounted peripheral from the plurality of vehicle-mounted peripherals as a night vision device. When the number of the first control keys is one, the switching sequence of the plurality of vehicle-mounted peripherals can be sequenced. And selecting the next vehicle-mounted peripheral from the plurality of vehicle-mounted peripherals as the target vehicle-mounted peripheral according to the switching sequence every time the user touches once.

As can be seen from the above, the selection of the target in-vehicle peripheral from the plurality of in-vehicle peripherals according to the control signal in 302 can be implemented in the following two ways.

The first method is as follows: there are a plurality of first control keys, and each first control key corresponds to an on-vehicle peripheral. And carrying the corresponding peripheral identification in the control signal generated after the user touches one of the first control keys. That is, the selecting 302 of the target vehicle-mounted peripheral device from the plurality of vehicle-mounted peripheral devices according to the control signal includes: acquiring a peripheral identification carried in the control signal; and selecting the vehicle-mounted peripheral equipment with the peripheral equipment identification from the plurality of vehicle-mounted peripheral equipment as the target vehicle-mounted peripheral equipment.

The second method comprises the following steps: and circularly switching to the next vehicle-mounted peripheral equipment according to the switching sequence by touching the first control key once every time. That is, the selecting 302 of the target vehicle-mounted peripheral device from the plurality of vehicle-mounted peripheral devices according to the control signal includes: responding to the control signal, and acquiring the latest switched vehicle-mounted peripheral; and according to the switching sequence of the plurality of vehicle-mounted peripherals, selecting one vehicle-mounted peripheral which is sequentially arranged behind the vehicle-mounted peripheral which is switched at the latest time from the plurality of vehicle-mounted peripherals as the target vehicle-mounted peripheral.

Here, it should be noted that: for the second mode, after the switching is completed each time, the latest switched vehicle-mounted peripheral equipment is recorded, so that the next switched vehicle-mounted peripheral equipment can be conveniently judged subsequently. The switching order of each of the plurality of devices may be preset. For example, the user touches the first control key once to switch the vehicle-mounted peripheral once. Suppose the switching sequence of the vehicle-mounted peripherals is: 360 degrees blind area image, vehicle event data recorder, navigator. And the user touches the first control key for the first time, and records the 360-degree blind area image as the latest switching equipment. And the user touches the first control key for the second time to obtain the latest switched vehicle-mounted peripheral equipment, and then selects one automobile data recorder behind the latest switched 360-degree blind area image.

For the first mode, the method may further include: acquiring the control signal generated by touching the first control key or the second control key; and configuring corresponding vehicle-mounted peripheral equipment for the control signal, so that when the control signal is generated, the identification of the vehicle-mounted peripheral equipment is carried in the control signal.

By adopting the technical scheme provided by the embodiment, a user can display images acquired/generated by the vehicle-mounted peripherals accessed to the vehicle through the interface box on the vehicle-mounted display equipment only by touching the existing first control key (for example, the original enter control key on the vehicle console or the key marked with NAV on the vehicle) or the second control key on the interface box on the vehicle, so that the video signals except the original factory setting can be inserted into the existing vehicle-mounted display equipment, and the video signals between the plurality of vehicle-mounted peripherals or between the vehicle-mounted peripherals and the original vehicle equipment can be switched, so that the display contents of the existing vehicle-mounted display equipment are more various, and the user can use the display equipment conveniently.

In an implementation manner, the target vehicle peripheral selectable from the plurality of vehicle peripherals in the above embodiment may be one, or may be two or more. When two or more selected target vehicle-mounted peripherals are available, the images acquired/generated by the two or more selected target vehicle-mounted peripherals can be all sent to the vehicle-mounted display equipment, so that the vehicle-mounted display equipment can display the two or more selected target vehicle-mounted peripherals in a split screen mode. For example, the display area is divided into a plurality of areas to display images captured/generated by different in-vehicle peripherals in partial areas.

Fig. 8 is a flowchart illustrating a vehicle-mounted peripheral selecting method according to another embodiment of the present invention. Similarly, the technical solution provided by the embodiment of the present invention can be implemented on the interface box side. As shown in fig. 8, the method provided in this embodiment includes:

401. and receiving a control signal generated by touching a first control key on the vehicle or a second control key on the interface box.

402. And selecting the target vehicle-mounted peripheral equipment from the plurality of vehicle-mounted peripheral equipment according to the control signal.

And the plurality of vehicle-mounted peripherals are connected to the vehicle through the interface box.

403. And sending the first image acquired/generated by the target vehicle-mounted peripheral to vehicle-mounted display equipment so that the vehicle-mounted display equipment switches and displays the default image of the original vehicle into the first image.

404. And receiving a running signal generated by the vehicle during running.

405. And determining the running state of the vehicle according to the running signal.

406. Judging whether the target vehicle peripheral equipment is equipment needing to be started in the running state or not, if so, maintaining to send a first image acquired/generated by the target vehicle peripheral equipment to the vehicle-mounted display equipment; otherwise, entering 407;

407. and selecting a new target vehicle-mounted peripheral which needs to be started under the driving state from the plurality of vehicle-mounted peripherals.

408. And sending the second image acquired/generated by the new target vehicle-mounted peripheral equipment to vehicle-mounted display equipment so that the vehicle-mounted display equipment switches and displays the first image into the second image.

Reference is made to the description of the foregoing embodiments for the above 401 to 403, which are not repeated herein.

In 404, the driving signal may be generated by the driver touching a driving lever, a steering wheel and/or a steering lamp lever, etc.; of course, the gyroscope may be generated by monitoring the driving posture of the vehicle in the vehicle with the gyroscope. For example, when the driving gear is placed in a forward gear, the generated driving signal is a forward signal; when the driving gear is placed in a reverse gear, the generated driving signal is a reverse signal; when the driving gear is placed in the driving gear, and the steering lamp gear is placed in a first position (for example, is dialed to the upper side) or the steering wheel rotates clockwise, the generated driving signal is a forward driving and right steering signal; when the driving gear is placed in the driving gear, and the steering lamp gear is placed in a second position (for example, is dialed downwards) or the steering wheel rotates anticlockwise, the driving signals are forward driving and left steering signals; when the driving gear is placed in a reverse gear and the steering wheel rotates clockwise, the generated driving signals are reverse combination right steering signals; when the driving gear is placed in a reverse gear and the steering wheel rotates anticlockwise, the generated driving signals are reverse and left steering signals.

In one implementation, the above 405 may determine the driving state of the vehicle by recognizing the driving signal. Each driving signal has specific signal characteristics, namely, the driving state of the current vehicle can be determined in a signal identification mode. For example, if the travel signal is identified as a forward travel signal (i.e., the vehicle gear is to be in the driving gear), it may be determined that the vehicle is currently in a forward travel state; if the driving signal is identified as a reverse signal (namely the vehicle gear shift is in a reverse gear), the vehicle can be determined to be in a reverse state currently; if the driving signal is identified as a forward combined left-turning signal, the vehicle can be determined to be in a forward left-turning state currently; if the travel signal is identified as the forward combined right steering signal, the vehicle can be determined to be in a forward right turning state currently. It should be noted here that the forward merging left turn signal can be understood as: the left turn signal generated in the forward traveling state, or the left turn signal generated after the forward traveling signal. Likewise, a forward left steering signal is understood to mean a right steering signal generated in the driving state or a right steering signal generated after the forward signal. In addition, the vehicle driving state includes a state of reversing and steering in addition to the above state. The original vehicle is provided with a vehicle backing image, the backing image can only collect images right behind the vehicle, and if a driver needs to turn left or right at the moment, the added vehicle-mounted peripheral (namely, a 360-degree blind area image) needs to be called to observe images on two sides of the vehicle. The vehicle is in a reverse combination steering state, namely the vehicle gear is in a reverse gear, and the steering wheel of the vehicle is in a rotating state. The driving gear handle can generate a reverse signal when being in a reverse gear, and the steering wheel can generate a corresponding forward combined steering signal when rotating in the reverse process. That is, the reverse combination of the steering signals can be understood as follows: the steering signal generated in the reverse state, or the steering signal generated after the reverse signal. At the moment, the driving state is determined to be a reversing combined steering state according to the reversing combined steering signal. The reversing combined steering signal is divided into a reversing combined left steering signal and a reversing combined right steering signal. Corresponding to the combination of left steering signals and right steering signals for backing, the determined driving state is divided into: the reversing and the left steering combining state and the reversing and the right steering combining state.

In specific implementation, corresponding vehicle-mounted peripherals can be configured for different driving states in advance. For example, a plurality of driving states and corresponding peripheral identifiers are manually set through the association setting interface, and then the plurality of driving states and the corresponding peripheral identifiers are stored in an association manner according to the setting. Assuming that the equipment corresponding to the vehicle advancing state is a vehicle event data recorder; the equipment corresponding to the backing state is a backing image; the equipment corresponding to the forward merging left steering state and the forward merging right steering state is a 360-degree blind area image; the equipment corresponding to the reversing combination left-turning state and the reversing combination right-turning state is a 360-degree blind area image. What needs to be added here is: the 360-degree blind area image comprises a plurality of cameras so as to collect 360-degree images of the vehicle; therefore, when the vehicle is in the forward-combination left-steering state, the forward-combination right-steering state, the reverse-combination left-steering state and the reverse-combination right-steering state, which one or more cameras in the 360-degree blind area images are respectively started can also be set by the vehicle. The specific setting can be according to the actual driving demand, and the embodiment of the present invention is not limited to this specifically.

Accordingly, in 406, it may be determined whether the target vehicle peripheral is a device to be activated in the driving state based on a preset driving state and a corresponding vehicle-mounted peripheral. The corresponding vehicle-mounted peripheral is searched according to the determined driving state, and then whether the current target vehicle-mounted peripheral is the same as the searched vehicle-mounted peripheral or not is judged, so that the target vehicle-mounted peripheral is judged to be not the equipment required to be started in the driving state.

The 407 step may select a new target vehicle-mounted peripheral based on the preset corresponding relationship between the driving status and the peripheral identifier of the vehicle-mounted peripheral. That is, 407 can be implemented by the following method:

acquiring a peripheral identifier corresponding to a running state according to a preset corresponding relation between the running state and the peripheral identifier;

and selecting the vehicle-mounted peripheral equipment with the peripheral equipment identification from the plurality of vehicle-mounted peripheral equipment as the target vehicle-mounted peripheral equipment.

In 408, in a specific implementation, the second image collected/generated by the new target vehicle-mounted device may be sent to the vehicle-mounted controller through the vehicle-mounted bus, and then the vehicle-mounted controller controls the vehicle-mounted display device to switch and display the first image into the second image.

In practical applications, the following possibilities may exist: and selecting no new target vehicle-mounted peripheral which needs to be started in the driving state from the plurality of vehicle-mounted peripherals. In this case, the sending of the first image acquired/generated by the target vehicle-mounted peripheral device to the vehicle-mounted display device may be maintained, or a display recovery prompt may be sent to a vehicle-mounted controller, so as to recover the display content of the vehicle-mounted display device to the default display content of the original vehicle.

In the technical scheme provided by this embodiment, a user can select a target vehicle-mounted peripheral from a plurality of vehicle-mounted peripherals accessed to a vehicle through an interface box and display the target vehicle-mounted peripheral in the existing vehicle-mounted display device by only touching an existing first control key (for example, an existing enter control key on a vehicle console or a key marked with NAV on the vehicle) on the vehicle or a second control key on the interface box; in addition, the embodiment also provides a function of intelligently selecting the target vehicle-mounted peripheral, namely, the target vehicle-mounted peripheral is selected according to the running state of the vehicle and displayed in the existing vehicle-mounted display equipment, so that the use convenience of a user is further improved.

It should be noted that: the execution subject of the method provided by the above embodiment may be an interface box installed on a vehicle bus. The interface box can be implemented by using the structures shown in fig. 1 to 4, and for the description of the specific structure and the connection relationship, reference is made to the specific embodiment shown in fig. 1 to 4, which is not repeated herein.

Fig. 9 is a schematic structural diagram of a vehicle-mounted display system according to an embodiment of the present invention, and as shown in fig. 9, the vehicle-mounted display system according to the embodiment includes: interface box 20, in-vehicle display device 21, in-vehicle bus 22, and at least one in-vehicle peripheral 23. The interface box 20 is connected to the vehicle bus 22 through a connecting line; the vehicle-mounted display equipment 21 is accessed to the vehicle-mounted bus 22; the at least one onboard peripheral 23 is connected to the interface box 20.

Here, it should be noted that: the interface box in the above embodiment may be implemented by using the solutions provided in the embodiments shown in fig. 1 to fig. 4, and specific implementation structures and working principles may refer to corresponding contents in the above embodiments, which are not described herein again.

The vehicle-mounted peripheral device in the above embodiment may be: the image processing device includes a smart phone, a notebook computer, a vehicle traveling data recorder, a blind area image device, a reverse image device, a 360-degree image device, a night vision device, and the like, which are not particularly limited in this embodiment of the present invention.

In this embodiment, by setting the interface box, the method described in any one of the above fig. 5 to 8 can be implemented, and specifically, additional video signals (i.e., images generated by the vehicle-mounted peripheral device) can be inserted into the vehicle with the display screen, such as a back-up image, a driving recorder, a blind area image (also referred to as a 360-degree image), so as to bring convenience to a vehicle user. The interface box is connected with former car display device, and its connection is simple, simple to operate, and the degree of difficulty of vehicle upgrading has been simplified in easily operation.

The user connects the audio/video wiring harness of the interface box directly to the vehicle-mounted bus connector of the original vehicle, so that the user selects the input of each path of video signals of the interface box through the keys (such as the enter key or the keys marked with NAV on the vehicle machine) of the original vehicle. The Interface box may transmit signals of multiple formats to the vehicle-mounted bus, for example, RGB signals for transmitting a navigator, RGB signals for a car recorder, or an output format (HDMI (high definition Multimedia Interface) format) of an intelligent terminal (such as a mobile phone or a 3G device). RGB is subdivided into two resolution formats: NTSC (National Television Standards Committee) format and VGA (Video Graphics Array) format. The NTSC can be used as a format of a common navigator, and the VGA can be used as a format of high-definition navigation.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An interface box, comprising: the device comprises a box body, a bus interface arranged on the box body, and a decoder, a control unit and an interface component which are accommodated in the box body; wherein,

the output end of the decoder is connected with the bus interface;

2. The outlet box of claim 1, wherein the box body comprises two opposing first and second sidewalls;

the bus interface is arranged on the first side wall;

the cartridge body includes: an upper cover and a lower cover; wherein,

the upper cover is buckled on the lower cover;

3. The outlet box of claim 1, further comprising: control keys and audio and video wiring harnesses;

the first connector is connected with the bus interface;

4. The outlet box according to any of claims 1 to 3, wherein the control unit is a dial switch;

a plurality of dial terminals are arranged on the dial switch;

the interface box also comprises: a work indicator light;

the working indicator lamp is arranged on the outer wall of the box body;

the interface further comprises: a wireless network unit;

5. A device selection method, characterized by being performed on the interface box side, the method comprising:

receiving a control signal for device selection;

6. The method of claim 5, further comprising:

7. The method of claim 5, further comprising:

8. The method of any of claims 5 to 7, further comprising:

receiving a switching instruction generated by triggering the control key;

9. The method of any of claims 5 to 7, further comprising:

10. An in-vehicle display system, comprising:

the outlet box of any of the above claims 1 to 4;

an in-vehicle display device;

a vehicle-mounted bus;

at least one in-vehicle peripheral;