CN107071323B

CN107071323B - Equipment selection method, interface box and vehicle-mounted display system

Info

Publication number: CN107071323B
Application number: CN201710017925.0A
Authority: CN
Inventors: 刘国林
Original assignee: Microcarnet Autotech Co ltd
Current assignee: Microcarnet Autotech Co ltd
Priority date: 2017-01-10
Filing date: 2017-01-10
Publication date: 2024-08-13
Anticipated expiration: 2037-01-10
Also published as: CN107071323A

Abstract

The embodiment of the invention provides a device selection method, an interface box and a vehicle-mounted display system. The method comprises the following steps: receiving a control signal for device selection; selecting a target device from a plurality of devices according to the control signal; the method comprises the steps that a 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; and the plurality of vehicle-mounted peripherals are connected into the vehicle through the interface box. By adopting the technical scheme provided by the embodiment of the invention, a user can insert video signals except the original factory setting into the existing vehicle-mounted display equipment only by simple operation, and can switch the video signals among a plurality of vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle equipment, so that the display content of the existing vehicle-mounted display equipment is more various, and the use of the user is convenient.

Description

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

Technical Field

The present invention relates to the field of computer technologies, and in particular, to a device selection method, an interface box, and a vehicle display system.

Background

At present, people have stronger dependence on automobiles, and driving, working, traveling and the like are often required. Many existing automobiles are provided with display screens through which people can view navigation maps, watch videos and the like. The existing vehicle-mounted display screen only provides functions in the design scheme of an automobile manufacturer, and many vehicles with special display screens can display very limited contents.

However, in order to meet the increasing use demands of people, many vehicle-mounted peripheral products, such as navigator, automobile data recorder, 360-degree vehicle blind zone image, etc., are on the market, and the brands and models of the products are different. When each car leaves the factory, the supportable vehicle-mounted peripheral products configured in the vehicle-mounted system of each car are limited. The user wants to upgrade the vehicle-mounted display equipment on the basis of the original equipment, and needs to find the original factory to upgrade. And sometimes some functions may not be realized due to system support problems. Therefore, the existing vehicle system has the problems of poor expandability and inconvenient upgrading.

Disclosure of Invention

The inventor finds that, in the process of implementing the invention, if a user only performs simple operation (for example, presses a key), the acquired/generated image of the vehicle-mounted peripheral can be displayed by using the vehicle-mounted display device, and the switching among a plurality of vehicle-mounted peripheral can be realized, so that the invention is greatly convenient for the user to use. 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 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 bus interface is used for externally connecting a vehicle-mounted bus to provide working voltage for the decoder, the control unit and the interface component by using a vehicle-mounted power supply, and realizing 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 for respectively connecting different vehicle-mounted peripherals, and the other end of the interface component is connected with the input end of the decoder;

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

Optionally, the box body includes two opposite first side walls and a second side wall;

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

The upper cover comprises an upper panel and a first vertical plate which is arranged along the edge of the upper panel in a surrounding way;

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

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;

the fixing screw is used for fixedly connecting the upper cover with the lower cover through the fixing hole.

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

the control key is arranged outside the box body and is connected with the bus interface through a wire;

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 the appointed vehicle-mounted peripheral accessed through the interface component through the decoder and sends the decoded signal to the vehicle-mounted display device;

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 both used for being connected to the vehicle 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 corresponds to a corresponding number of interfaces in the plurality of interfaces respectively;

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 includes: a work indicator light;

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

The working indicator lamp 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 also comprises: a wireless network element;

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

In one embodiment of the present invention, there is provided a device selection method, which is 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;

The method comprises the steps that a 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;

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 equipment is equipment which is connected to a vehicle where the vehicle-mounted display equipment is located through the interface box.

Optionally, the method further comprises:

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

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

And sending the first image acquired/generated by the target equipment to an on-vehicle display equipment so that the on-vehicle display equipment can display the image displayed by the default of the vehicle as the first image in a switching way.

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;

The peripheral identification carried in the control signal is obtained, the vehicle-mounted peripheral with the peripheral identification is selected from the plurality of vehicle-mounted peripheral to be used as the target vehicle-mounted peripheral, or the vehicle-mounted peripheral which is switched at the latest time is obtained in response to the control signal, and the vehicle-mounted peripheral which is sequentially arranged behind the vehicle-mounted peripheral which is switched at the latest time is selected from the plurality of vehicle-mounted peripheral to be used as the target vehicle-mounted peripheral according to the switching sequence of the plurality of vehicle-mounted peripheral;

And sending the first image acquired/generated by the target vehicle-mounted peripheral equipment to a vehicle-mounted display device, so that the vehicle-mounted display device can display the image displayed by default by the original vehicle as the first image in a switching way.

Optionally, the method further comprises:

Receiving a switching instruction generated by triggering the control key;

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

and sending the second image acquired/generated by the new target device to the vehicle-mounted display device so that the vehicle-mounted display device can display the first image displayed currently as the second image in a switching way.

Optionally, the method further comprises:

If the target vehicle-mounted peripheral equipment is not equipment which needs to be started in the running state, selecting a new target vehicle-mounted peripheral equipment which needs to be started in the running 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 a vehicle-mounted display device so that the vehicle-mounted display device can display the first image in a switching mode as a second image; or alternatively

And if the new target vehicle-mounted peripheral equipment is not selected from the plurality of vehicle-mounted peripheral equipment, maintaining to send the first image acquired/generated by the target vehicle-mounted peripheral equipment to the vehicle-mounted display equipment or sending a display restoration prompt to a vehicle-mounted controller so as to restore 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 by the above;

A vehicle-mounted display device;

a vehicle bus;

At least one vehicle-mounted peripheral;

the interface box is connected to the vehicle-mounted bus through a connecting wire; the vehicle-mounted display equipment is connected 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 the 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 an on-board peripheral device connected to the vehicle through the interface box on the on-board display device only by 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 running state of the vehicle in the running process of the vehicle, and then send the image acquired/generated by the target device to the on-board display device for display. The interface box provided by the embodiment of the invention realizes that video signals except the original factory setting are inserted into the existing vehicle-mounted display equipment, and video signals between a plurality of vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle equipment can be switched, so that the display content of the existing vehicle-mounted display equipment is more various, and the display compatibility of vehicles is improved. And the user does not need to manually open and check the screen of the corresponding vehicle-mounted peripheral, which is beneficial to driving safety and convenient for the user to use. The interface box of the embodiment of the invention has simple connection 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 of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic diagram of an external structure 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 flowchart of a device selection method according to an embodiment of the present invention;

fig. 6 is a flowchart of a device selection method according to another embodiment of the present invention;

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

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

Fig. 9 is a schematic structural diagram of a vehicle display system according to an embodiment of the invention.

Detailed Description

In order to enable those skilled in the art to better understand the present invention, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present invention with reference to the accompanying drawings.

In some of the flows described in the description of the invention, the claims, and the figures described above, a number of operations occurring in a particular order are included, and the operations may be performed out of order or concurrently with respect to the order in which they occur. The sequence numbers of operations such as 101, 102, etc. are merely used to distinguish between the various operations, and the sequence numbers themselves do not represent any order of execution. In addition, 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" and "second" herein are used to distinguish different messages, devices, modules, etc., and do not represent a sequence, and are not limited to the "first" and the "second" being different types.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme provided by the embodiment of the invention can be realized through the interface box provided by the embodiment of the invention, and particularly, the control signal for equipment selection is received; selecting a target device from a plurality of devices according to the control signal; the method comprises the steps that a 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; 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 equipment is equipment which is connected to a vehicle where the vehicle-mounted display equipment is located through the interface box. The additional video signals can be inserted into the existing vehicle-mounted display equipment so as to realize video signal switching among various vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle image acquisition equipment, thereby bringing convenience to vehicle users. In addition, the interface box provided by the embodiment of the invention has the advantages of simple connection interface, convenient installation and simplified difficulty in vehicle upgrading.

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

As shown in fig. 2, the bus interface 11 is configured to connect to an on-board bus, so as to provide an operating voltage to the decoder 12, the control unit 13, and the interface component 14 by using an on-board power supply, and realize data transmission between the decoder 12 and an on-board display device connected to the on-board bus.

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

The interface unit 14 has a plurality of interfaces 141 (shown in fig. 1) for connecting to different on-board peripherals, respectively, at one end, and is connected to an input terminal of the decoder 12 at the other end.

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

Further, as shown in fig. 2, the case 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 interfaces 141 protrude out of the case 10 through the through holes. By separately providing the bus interface 11 and the plurality of interfaces 141 on both sides of the case 10, 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 particular embodiments, the audio/video harness 15 may be a RCA (Radio Corporation of American) harness. Of course, the selection of the audio/video wiring harness in this embodiment is not particularly limited. As shown in fig. 2, the audio/video wiring 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 with the bus interface 11; the second connector 152 and the third connector 153 are both used for accessing the vehicle bus.

What needs to be explained here is: the vehicle-mounted bus mentioned in the present embodiment may be: CAN (Controller Area Network) bus, VAN (VEHICLE AREA Network, vehicle lan) bus, LIN (Local Interconnect Network, serial communication Network) bus technology, or the like, which is not particularly limited.

Further, as shown in fig. 2 and 4, the interface box provided in this embodiment may further include a control key 16. The control key 16 is provided outside the box body 10 and is connected to the bus interface 11 through a wire. 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 specific vehicle-mounted peripheral accessed through the interface component 14 through the decoder 12 and sends the decoded signal to a vehicle-mounted display device accessed to the vehicle-mounted bus, and an image generated by the specific vehicle-mounted peripheral is displayed on the vehicle-mounted display device. By adding 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 in this embodiment is connected to a vehicle, a certain existing key (for example, a carriage return key or a key marked with a NAV) on the vehicle may be set as the switching key. When the original car key cannot be switched, the control key can be used as a standby key.

In one implementation, the control unit in the above embodiment may select a dial switch. The dial switch is provided with a plurality of dial terminals. At least one of the plurality of dial terminals corresponds to a corresponding number of the plurality of interfaces, respectively. 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, namely, a dial terminal 1, a dial terminal 2, a dial terminal 3, a dial terminal 4, a dial terminal 5, a dial terminal 6, a dial terminal 7 and a 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 may correspond to the interface 1, the dial terminal 2 may correspond to the interface 2, the dial terminal 3 may correspond to the interface 3, the dial terminal 4 may correspond to the control key, the dial terminal 5 may correspond to the interface 4, and the dial terminal 6, the dial terminal 7, and the dial terminal 8 may be idle as extension terminals. The dial terminal may have two position states, such as a first position (dial-down position) and a second position (dial-up position).

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

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

For example, after the interface box provided in this embodiment is connected to the vehicle, the user may set a certain existing key (for example, a carriage return key or a key marked with a NAV) on the vehicle as the switching key. The dial switch can be switched back and forth in a set plurality of channels every time the user touches the switching key.

For example: assuming that the number of channels set by the dial switch is 3, the 3 channels are respectively connected: original 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 car image equipment is displayed on the original car 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 vehicle data recorder; and thirdly, the user touches the switching key, and the original car display screen switches and displays the image generated by the 360-degree image equipment.

As shown in fig. 2, the interface box provided in this embodiment may further include a work indicator light 17. The working 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 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. Through setting up the work pilot lamp, be convenient for observe whether corresponding part is in normal operating condition. In the specific implementation, only one working indicator lamp can be arranged, and a plurality of working indicator lamps can also be arranged; the number of the work indicator lamps is not particularly limited in this embodiment.

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. Wherein, the upper cover 103 includes an upper panel 1031 and a first vertical plate 1032 disposed around an edge of the upper panel 1031. The lower cover 104 includes a lower panel 1041 and a second riser 1042 disposed around an edge of the lower panel. The upper cover 103 is fastened to the lower cover 104. Fixing holes are formed in corresponding positions of the first vertical plate 1032 and the second vertical plate 1042. The fixing screw fixedly connects the upper cover 103 and the lower cover 104 through the fixing hole.

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.

According to the interface box provided by the embodiment, the decoder is arranged to decode the image generated by the vehicle-mounted peripheral equipment accessed through the interface assembly into the image format supported by the vehicle, and the decoded image is sent to the vehicle-mounted display equipment for display, so that the connection requirements of different types of vehicle-mounted peripheral equipment are met, and the expandability of the vehicle is improved. In addition, by using the interface box provided by the embodiment, additional video signals can be inserted into the existing vehicle-mounted display equipment, so that video signal switching between various vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle image acquisition equipment is realized, and convenience is brought to vehicle users. In addition, the interface box provided by the embodiment is simple in connection interface, convenient to install and easy to operate, and the difficulty of upgrading the vehicle is simplified.

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

101. a travel signal generated by the vehicle during travel is received.

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

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

104. And the target equipment acquires/generates a first image and sends the first image to the vehicle-mounted display equipment so as to display the first image on the vehicle-mounted display equipment.

The plurality of devices may be a plurality of vehicle-mounted peripherals, for example, a vehicle recorder, a navigator, a night vision device, a 360-degree blind area image, and the like. The vehicle-mounted external equipment is equipment which is connected with the vehicle through an interface box. The interface box can be connected to the vehicle by connecting to the vehicle bus. Or the plurality of devices may include at least one in-vehicle peripheral and at least one in-vehicle device. The in-vehicle device is a functional device that the vehicle has when the original vehicle leaves the factory.

In the above 101, the driving signal may be generated by a driver after touching a driving gear handle, a steering wheel, a steering lamp gear handle, or the like; of course, it is also possible for the vehicle with the on-board gyroscope to be generated by the on-board gyroscope by monitoring the driving posture of the vehicle. For example, when the driving gear is placed in the forward gear, the driving signal generated is a forward signal; when the driving gear is placed in the reverse gear, the generated driving signal is a reverse signal; when the driving gear handle is arranged at the driving gear and the steering lamp gear handle is arranged at a first position (such as being pulled up) or the steering wheel rotates clockwise, the generated driving signals are forward driving and right steering signals; when the driving gear handle is placed at the driving gear and the steering lamp handle is placed at a second position (e.g. is dialed to the lower side) or the steering wheel rotates anticlockwise, the driving signal is a forward driving combined left steering signal; when the driving gear handle is placed in the reverse gear and the steering wheel rotates clockwise, the generated driving signal is a reverse combined right steering signal; when the driving gear handle is placed in the reverse gear and the steering wheel rotates anticlockwise, the generated driving signal is a reverse combined left steering signal.

In one implementation, 102 may determine the driving status of the vehicle by identifying the driving signal. Each driving signal has specific signal characteristics, namely, the driving state of the current vehicle can be determined by identifying the signal. For example, if the travel signal is identified as a forward travel signal (i.e., the vehicle range handle is in a drive range), then it may be determined that the vehicle is currently in a forward travel state; if the running signal is identified as a reversing signal (namely, the vehicle gear handle is in the reversing gear), the current reversing state of the vehicle can be determined; if the running signal is identified as the forward combined left steering signal, the current forward left steering state of the vehicle can be determined; if the running signal is identified as the forward combined right steering signal, the current forward right steering state of the vehicle can be determined. Here, the forward combining left turn signal is understood to be: the left turn signal generated in the forward state or the left turn signal generated after the forward signal. Likewise, a forward left turn signal may be understood as a right turn signal generated in a driving state or a right turn signal generated after a forward signal. The vehicle running state includes a state in which the reverse is combined with the steering, in addition to the above-described state. The original vehicle is provided with a vehicle with a reversing image, the reversing image can only collect the image right behind the vehicle, and if a driver needs to turn left or right at the moment, the additionally arranged vehicle-mounted peripheral devices (namely 360-degree blind area images) are required to be called to observe the images on two sides of the vehicle. The vehicle is in a reversing and combining steering state, namely the vehicle gear handle is in a reversing gear, and the steering wheel of the vehicle is in a rotating state. The driving gear handle generates a reversing signal when being in a reversing gear, and the steering wheel rotates in the reversing process to generate a corresponding forward combined steering signal. Namely, the reversing merging steering signal can be understood as follows: the steering signal generated in the reverse state or the steering signal generated after the reverse signal. At this time, according to the reverse combined steering signal, it is determined that the running state is the reverse combined steering state. The reversing combined steering signals are divided into reversing combined left steering signals and reversing combined right steering signals. Corresponding to the reversing combined left steering signal and reversing combined right steering signal, the determined driving state is divided into: a reverse merge left steering state and a reverse merge right steering state.

In 103, the plurality of devices may be all vehicle peripherals, or may include a part of the vehicle-mounted devices and a part of the vehicle-mounted peripherals. In particular, the corresponding devices can be predefined for different driving states. For example, a plurality of running states and corresponding equipment identifiers are artificially set through an association setting interface, and then the running states and the corresponding equipment identifiers are associated and stored according to the setting. Assuming that the equipment corresponding to the vehicle forward state is a vehicle recorder; the equipment corresponding to the reversing state is reversing images; the equipment corresponding to the forward combined left steering state and the forward combined right steering state is 360-degree blind area images; the equipment corresponding to the reversing combination left steering state and reversing combination right steering state is 360-degree blind area images. What is needed here is that: the 360-degree blind area image comprises a plurality of cameras so as to acquire 360-degree images of the vehicle; therefore, when the left steering state is combined in the forward direction, the right steering state is combined in the forward direction, the left steering state is combined in the reverse direction and the right steering state is combined in the reverse direction, one or more cameras in the 360-degree blind area image are respectively started, and the camera can also be set by self. The specific setting can be set according to actual driving requirements, and the embodiment of the invention is not particularly limited.

After setting the corresponding relation between the running state and the device identifier, 103 in the above embodiment can implement the selection of the target device according to the corresponding relation. That is, the above 103 may be implemented by the following method:

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

And selecting a device with the device identifier from the plurality of devices as the target device.

In the implementation of the above 104, 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. The vehicle-mounted controller sends a display instruction carrying the first image to the vehicle-mounted display device after receiving the first image through the vehicle-mounted bus, 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 running 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 manually added vehicle-mounted peripheral equipment) except the original factory setting are inserted into the existing vehicle-mounted display equipment, and the video signals between the plurality of vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle equipment can be switched according to the running state of the vehicle, so that the display content of the existing vehicle-mounted display equipment is more various, and the display compatibility of the vehicle is improved.

Fig. 6 is a schematic flow chart of 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. A travel signal generated by the vehicle during travel is received.

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 preset corresponding relation between the running state and the equipment identifier.

204. And selecting a device with the device identifier from the plurality of devices as the target device.

205. And if the target equipment is selected from the plurality of equipment, sending the first image acquired by the target equipment to the 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 restoration prompt to the vehicle-mounted controller so as to restore the display content of the vehicle-mounted display equipment to the display content of the original default setting.

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

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

209. And sending the second image acquired/generated by the new target device to the vehicle-mounted display device so that the vehicle-mounted display device can display the first image displayed currently as the second image in a switching way.

For the above 201 to 205, reference is made to the description of the foregoing embodiments, and the description is omitted here.

When the target device is not selected from the plurality of devices, the display content of the original default setting of the vehicle, such as the navigation image, the default interface, and the like, may be restored to the on-vehicle display device 206.

In the above 207, the control key may be an existing control key on the vehicle, for example: the enter control or a key on the vehicle marked with a NAV. 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 the vehicle, the 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 an acquisition instruction to peripheral equipment of the vehicle, and a second image acquired by the peripheral equipment is sent to the vehicle-mounted display equipment for display. Or the control may be the control of the interface box mentioned above. 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 specific vehicle-mounted peripheral accessed through the interface component 14 through the decoder 12 and sends the decoded signal to a vehicle-mounted display device accessed to the vehicle-mounted bus, and an image generated by the specific vehicle-mounted peripheral is displayed on the vehicle-mounted display device.

By adding 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 in this embodiment is connected to a vehicle, a certain existing key (for example, a carriage return key or a key marked with a NAV) on the vehicle may be set as the switching key. When the original car key cannot be switched, the control key can be used as a standby key.

In 208 above, the switching sequence of each of the plurality of devices may be preset. For example, the user touches a primary control key to switch the primary device. For example, the switching sequence of the devices is: device 1 (360 degree camera), device 2 (tachograph), 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 device 3.

Or the above-mentioned switching instruction carries the identification of the target equipment to be switched. For example, existing control keys on the vehicle are associated with different devices in advance. When a user touches the enter key, the corresponding equipment is a navigator; when the user touches the NAV control key, the corresponding device is a vehicle recorder or 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 acquired 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 in the above embodiments may be the same device, or the method may be executed by different devices. For example, the execution subject of steps 101 to 103 may be the device a; for another example, the execution body of steps 101 and 102 may be device a, and the execution body of step 103 may be device B; etc.

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

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 a target vehicle-mounted peripheral device from a plurality of vehicle-mounted peripheral devices according to the control signal.

303. And sending the first image acquired/generated by the target vehicle-mounted peripheral equipment to a vehicle-mounted display device, so that the vehicle-mounted display device can display the image displayed by default by the original vehicle as the first image in a switching way.

And the plurality of vehicle-mounted peripherals are connected into the vehicle through the interface box. The vehicle-mounted peripheral equipment can be a vehicle event data recorder, blind area image equipment, reversing image equipment, 360-degree image equipment, 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 a NAV on the vehicle, which is not limited in particular in the embodiment of the present invention. In practical application, the user may pre-select an existing control key on the vehicle as the first control key, and set the corresponding response function from the default setting function of the original vehicle to 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 the function provided in this embodiment that the target vehicle-mounted peripheral is selected from the plurality of vehicle-mounted peripherals. At present, the user can also select the function of the target vehicle-mounted peripheral from the plurality of vehicle-mounted peripheral in a mode of touching the second control key on the interface box. The interface box is connected to the vehicle through the vehicle-mounted bus, the vehicle-mounted peripheral is connected to the vehicle through the interface box, and the interface box sends images acquired/generated by the vehicle-mounted peripheral to the vehicle-mounted display equipment so as to switch video signals among a plurality of vehicle-mounted peripheral or between the vehicle-mounted peripheral and original vehicle equipment.

In one implementation, the first control may be provided in one or more of the plurality of control keys. When there are a plurality of first control keys, each of the first control keys may correspond to one of the vehicle-mounted peripherals. Thus, the user can touch the first control key corresponding to the vehicle-mounted peripheral which is wanted to be started according to the selection of the user. For example, the enter key corresponds to a 360 degree blind zone image; the key marked with NAV corresponds to the night vision device; in this way, if the user touches the enter key, the target vehicle-mounted peripheral device selected from the plurality of vehicle-mounted peripheral devices is a 360-degree blind area image; and if the key of the NAV is touched, the target vehicle-mounted peripheral device selected from the plurality of vehicle-mounted peripheral devices is a night vision device. When the first control key is one, the switching sequences of the plurality of vehicle-mounted peripherals can be ordered. And selecting the next vehicle-mounted peripheral from the plurality of vehicle-mounted peripheral according to the switching sequence as a target vehicle-mounted peripheral when the user touches the vehicle-mounted peripheral once.

Based on the foregoing, the selecting of the target vehicle-mounted peripheral device from the plurality of vehicle-mounted peripheral devices according to the control signal in the above-described step 302 may be implemented in two ways.

Mode one: there are a plurality of first control keys, each corresponding to one of the vehicle-mounted peripherals. The control signal generated after the user touches one of the first control keys carries the corresponding peripheral identification. That is, in the above 302, selecting a target vehicle-mounted peripheral device from a plurality of vehicle-mounted peripheral devices according to the control signal, including: acquiring a peripheral identification carried in the control signal; and selecting the vehicle-mounted peripheral with the peripheral identification from the plurality of vehicle-mounted peripheral as the target vehicle-mounted peripheral.

Mode two: and each time the first control key is touched, circularly switching to the next vehicle-mounted peripheral according to the switching sequence. That is, in the above 302, selecting a target vehicle-mounted peripheral device from a plurality of vehicle-mounted peripheral devices according to the control signal, including: responding to the control signal, and acquiring the latest switched vehicle-mounted peripheral; and selecting the vehicle-mounted peripheral device which is sequentially arranged behind the vehicle-mounted peripheral device switched at the latest time from the plurality of vehicle-mounted peripheral devices as the target vehicle-mounted peripheral device according to the switching sequence of the plurality of vehicle-mounted peripheral devices.

What needs to be explained here is: for the second mode, after each switching is completed, the vehicle-mounted peripheral device switched at the latest time is recorded so as to facilitate the subsequent judgment of the vehicle-mounted peripheral device switched next time. The switching sequence of each device in the plurality of devices may be preset. For example, the user touches the first control key once and switches the on-vehicle peripheral once. Suppose that the switching sequence of the vehicle-mounted peripheral is: 360-degree blind area image, vehicle event data recorder and navigator. And the user touches the first control key for the first time, the 360-degree blind area image is recorded, and the 360-degree blind area image is recorded as the latest switching device. And the user touches the first control key for the second time, acquires the vehicle-mounted peripheral device switched at the latest time, and then selects a vehicle data recorder which is orderly arranged behind the image of the blind area of 360 degrees switched at the latest time.

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 the identification of the vehicle-mounted peripheral equipment is carried in the control signal when the control signal is generated.

By adopting the technical scheme provided by the embodiment, a user can display the image acquired/generated by the vehicle-mounted peripheral equipment connected to the vehicle through the interface box on the vehicle-mounted display equipment only through the first control key (for example, the original carriage return control key on the vehicle control console or the NAV-marked key on the vehicle) or the second control key on the interface box on the touch-control vehicle, so that video signals except the original factory setting are inserted into the existing vehicle-mounted display equipment, and video signals between a plurality of vehicle-mounted peripheral equipment or between the vehicle-mounted peripheral equipment and the original vehicle equipment can be switched, so that the display content of the existing vehicle-mounted display equipment is more various, and the use of the user is facilitated.

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

Fig. 8 is a flowchart illustrating a vehicle-mounted peripheral selection method according to another embodiment of the present invention. Likewise, the technical solution provided by the embodiment of the invention can be implemented at 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 a target vehicle-mounted peripheral device from a plurality of vehicle-mounted peripheral devices according to the control signal.

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

403. And sending the first image acquired/generated by the target vehicle-mounted peripheral equipment to a vehicle-mounted display device, so that the vehicle-mounted display device can display the image displayed by default by the original vehicle as the first image in a switching way.

404. A travel signal generated by the vehicle during travel is received.

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

406. Judging whether the target vehicle peripheral equipment is equipment to be started in the running state, if so, maintaining to send a first image acquired/generated by the target vehicle peripheral equipment to the vehicle-mounted display equipment; otherwise, go to 407;

407. And selecting a new target vehicle-mounted peripheral device which needs to be started in the driving state from the plurality of vehicle-mounted peripheral devices.

408. And sending the second image acquired/generated by the new target vehicle-mounted peripheral equipment to a vehicle-mounted display device so that the vehicle-mounted display device can display the first image in a switching mode as a second image.

For the above 401 to 403, reference is made to the description of the foregoing embodiments, and the description is omitted here.

In the above 404, the driving signal may be generated by the driver after touching the driving gear handle, the steering wheel and/or the steering lamp gear handle; of course, it is also possible for the vehicle with the on-board gyroscope to be generated by the on-board gyroscope by monitoring the driving posture of the vehicle. For example, when the driving gear is placed in the forward gear, the driving signal generated is a forward signal; when the driving gear is placed in the reverse gear, the generated driving signal is a reverse signal; when the driving gear handle is arranged at the driving gear and the steering lamp gear handle is arranged at a first position (such as being pulled up) or the steering wheel rotates clockwise, the generated driving signals are forward driving and right steering signals; when the driving gear handle is placed at the driving gear and the steering lamp handle is placed at a second position (e.g. is dialed to the lower side) or the steering wheel rotates anticlockwise, the driving signal is a forward driving combined left steering signal; when the driving gear handle is placed in the reverse gear and the steering wheel rotates clockwise, the generated driving signal is a reverse combined right steering signal; when the driving gear handle is placed in the reverse gear and the steering wheel rotates anticlockwise, the generated driving signal is a reverse combined left steering signal.

In one implementation, the 405 may determine the driving status of the vehicle by identifying the driving signal. Each driving signal has specific signal characteristics, namely, the driving state of the current vehicle can be determined by identifying the signal. For example, if the travel signal is identified as a forward travel signal (i.e., the vehicle range handle is in a drive range), then it may be determined that the vehicle is currently in a forward travel state; if the running signal is identified as a reversing signal (namely, the vehicle gear handle is in the reversing gear), the current reversing state of the vehicle can be determined; if the running signal is identified as the forward combined left steering signal, the current forward left steering state of the vehicle can be determined; if the running signal is identified as the forward combined right steering signal, the current forward right steering state of the vehicle can be determined. Here, the forward combining left turn signal is understood to be: the left turn signal generated in the forward state or the left turn signal generated after the forward signal. Likewise, a forward left turn signal may be understood as a right turn signal generated in a driving state or a right turn signal generated after a forward signal. The vehicle running state includes a state in which the reverse is combined with the steering, in addition to the above-described state. The original vehicle is provided with a vehicle with a reversing image, the reversing image can only collect the image right behind the vehicle, and if a driver needs to turn left or right at the moment, the additionally arranged vehicle-mounted peripheral devices (namely 360-degree blind area images) are required to be called to observe the images on two sides of the vehicle. The vehicle is in a reversing and combining steering state, namely the vehicle gear handle is in a reversing gear, and the steering wheel of the vehicle is in a rotating state. The driving gear handle generates a reversing signal when being in a reversing gear, and the steering wheel rotates in the reversing process to generate a corresponding forward combined steering signal. Namely, the reversing merging steering signal can be understood as follows: the steering signal generated in the reverse state or the steering signal generated after the reverse signal. At this time, according to the reverse combined steering signal, it is determined that the running state is the reverse combined steering state. The reversing combined steering signals are divided into reversing combined left steering signals and reversing combined right steering signals. Corresponding to the reversing combined left steering signal and reversing combined right steering signal, the determined driving state is divided into: a reverse merge left steering state and a reverse merge right steering state.

In particular, corresponding vehicle peripherals may be configured for different driving states in advance. For example, a plurality of running states and peripheral identifiers corresponding to the running states are manually set through an association setting interface, and then the running states and the peripheral identifiers corresponding to the running states are associated and stored according to the setting. Assuming that the equipment corresponding to the vehicle forward state is a vehicle recorder; the equipment corresponding to the reversing state is reversing images; the equipment corresponding to the forward combined left steering state and the forward combined right steering state is 360-degree blind area images; the equipment corresponding to the reversing combination left steering state and reversing combination right steering state is 360-degree blind area images. What is needed here is that: the 360-degree blind area image comprises a plurality of cameras so as to acquire 360-degree images of the vehicle; therefore, when the left steering state is combined in the forward direction, the right steering state is combined in the forward direction, the left steering state is combined in the reverse direction and the right steering state is combined in the reverse direction, one or more cameras in the 360-degree blind area image are respectively started, and the camera can also be set by self. The specific setting can be set according to actual driving requirements, and the embodiment of the invention is not particularly limited.

Accordingly, in the above 406, it may be determined whether the target vehicle peripheral is a device to be activated in the driving state based on the preset driving state and the corresponding vehicle-mounted peripheral. The corresponding vehicle-mounted peripheral is searched according to the determined running 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 not the equipment to be started in the running state.

The above 407 may select a new target vehicle-mounted peripheral device based on the preset corresponding relationship between the running state and the peripheral identifier of the vehicle-mounted peripheral device. That is, the above 407 may be specifically implemented as follows:

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

In the implementation of 408, the second image acquired/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 as the second image.

In practical applications, the following possibilities are possible: a new target vehicle-mounted peripheral device which needs to be started in a driving state is not selected from the plurality of vehicle-mounted peripheral devices. In this case, the first image acquired/generated by the target on-vehicle peripheral device may be maintained to be transmitted to the on-vehicle display device, or a display restoration prompt may be transmitted to the on-vehicle controller to restore the display content of the on-vehicle display device to the display content of the original vehicle default.

In the technical scheme provided by the embodiment, a user can select a target vehicle-mounted peripheral device from a plurality of vehicle-mounted peripheral devices accessed to a vehicle through an interface box only by touching an existing first control key (for example, an original carriage return 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, and display the target vehicle-mounted peripheral device in the existing vehicle-mounted display device; in addition, the embodiment also provides a function of intelligently selecting the target vehicle-mounted peripheral, namely selecting the target vehicle-mounted peripheral according to the running state of the vehicle and displaying the target vehicle-mounted peripheral in the existing vehicle-mounted display equipment, so that the convenience of the user is further improved.

It should be noted that: the execution subject of the method provided by the above embodiment may be one interface box mounted on a vehicle bus. The interface box may be implemented by adopting the structure shown in fig. 1-4, and the specific structure and connection relationship are described with reference to the specific embodiment shown in fig. 1-4, which are not repeated here.

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

What needs to be explained here is: 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 be referred to the corresponding contents in the above embodiments, which are not described herein again.

The vehicle-mounted peripheral device described in the above embodiment may be: the embodiment of the invention is not particularly limited to smart phones, notebook computers, automobile data recorders, blind area image devices, reversing image devices, 360-degree image devices, night vision devices and the like.

The method described in any one of the embodiments of fig. 5 to 8 can be implemented by setting the interface box in this embodiment, and in particular, an additional video signal (i.e., an image generated by a vehicle-mounted peripheral device) can be inserted into a vehicle having a display screen, for example, a reverse image, a vehicle recorder, a blind area image (also referred to as a 360-degree image), and the like, so as to bring convenience to a vehicle user. The interface box is connected with the original vehicle display equipment, is simple to connect, convenient to install and easy to operate, and simplifies the difficulty of vehicle upgrading.

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

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the 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;

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

The control key is arranged outside the box body and is connected with the bus interface through a wire; 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 the appointed vehicle-mounted peripheral accessed through the interface component through the decoder and sends the decoded signal to the vehicle-mounted display device;

The control unit is also used for receiving a running signal generated by the vehicle in the running process and determining the running state of the vehicle according to the running signal; according to a preset corresponding relation between a running state and equipment identifiers, acquiring the equipment identifiers corresponding to the running state, and selecting equipment with the equipment identifiers from the plurality of equipment as target equipment; transmitting a first image acquired/generated by the target device to a vehicle-mounted display device, so that the vehicle-mounted display device switches and displays an image displayed by default of a vehicle as the first image; the driving signals comprise signals generated after a driving gear handle, a steering wheel, a steering lamp gear handle and the like are touched, and signals generated by a vehicle-mounted gyroscope through monitoring the driving gesture of the vehicle;

Receiving a switching instruction generated by triggering the control key; responding to the switching instruction, and according to the switching sequence of each device in the plurality of devices, finding out the device with the switching sequence behind the target device from the plurality of devices as a new target device; transmitting a second image acquired/generated by the new target device to the vehicle-mounted display device, so that the vehicle-mounted display device switches and displays the first image currently displayed as the second image;

Or the control key is an existing control key of the vehicle, and comprises a carriage return control or a key marked with NAV on the vehicle; the control keys are set in advance, signals generated by touching the control keys are associated with switching instructions, so that when a user triggers an existing control of a vehicle, the triggering signals generated by the existing control are converted into the switching instructions, the switching instructions are sent to an interface box, the interface box sends an acquisition instruction to peripheral equipment of the vehicle, and a second image acquired by the peripheral equipment is sent to the vehicle-mounted display equipment for display.

2. The interface box of claim 1, wherein the box body comprises two opposing first and second side walls;

the bus interface is arranged on the first side wall;

The box body includes: an upper cover and a lower cover; wherein,

the upper cover is buckled on the lower cover;

3. The interface box of claim 1, further comprising: an audio/video wiring harness;

the first connector is connected with the bus interface;

4. A box according to any one 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 includes: a work indicator light;

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

the interface also comprises: a wireless network element;

5. A device selection method, performed on an interface box side, the method comprising:

Receiving a control signal for device selection;

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 equipment is equipment which is connected with a vehicle where the vehicle-mounted display equipment is located through the interface box;

Transmitting a first image acquired/generated by the target device to a vehicle-mounted display device, so that the vehicle-mounted display device switches and displays an image displayed by default of a vehicle as the first image;

Receiving a switching instruction generated by triggering the control key;

transmitting a second image acquired/generated by the new target device to the vehicle-mounted display device, so that the vehicle-mounted display device switches and displays the first image currently displayed as the second image;

Or the control key is an existing control key of the vehicle, and comprises a carriage return control or a key marked with NAV on the vehicle;

The control key is set in advance, and a signal generated by touching the control key is associated with a switching instruction, so that when a user performs trigger operation on an existing control of the vehicle, a trigger signal generated by the existing control is converted into the switching instruction; and is combined with

And sending the switching instruction to an interface box, sending the acquisition instruction to the vehicle peripheral equipment by the interface box, and sending the second image acquired by the peripheral equipment to the vehicle-mounted display equipment for display.

6. The method as recited in claim 5, further comprising:

The peripheral identification carried in the control signal is obtained, the vehicle-mounted peripheral with the peripheral identification is selected from the plurality of vehicle-mounted peripheral as a target vehicle-mounted peripheral, or the vehicle-mounted peripheral which is switched at the latest time is obtained in response to the control signal, and the vehicle-mounted peripheral which is sequentially arranged behind the vehicle-mounted peripheral which is switched at the latest time is selected from the plurality of vehicle-mounted peripheral as the target vehicle-mounted peripheral according to the switching sequence of the plurality of vehicle-mounted peripheral;

7. The method according to any one of claims 5 to 6, further comprising:

8. A vehicle-mounted display system, comprising:

The interface box of any one of the above claims 1 to 4;

A vehicle-mounted display device;

a vehicle bus;

At least one vehicle-mounted peripheral;