CN114666371A - Interconnection control method and device for multiple vehicle-mounted screen devices and storage medium - Google Patents
Interconnection control method and device for multiple vehicle-mounted screen devices and storage medium Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
- H04N7/152—Multipoint control units therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
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Abstract
The invention discloses a multi-vehicle screen device interconnection control method based on a networked automobile, wherein a master control screen device broadcasts and sends a device discovery request instruction at regular time, a slave control screen device responds, a device control table is created and maintained in real time, the master control screen device sends a master-slave mode control instruction to slave control devices in the device control table, each slave control screen device is set to be a default master-slave control mode state, each slave control screen device replies a response to confirm that the current control state is the master-slave mode, the master control device controls and switches the whole vehicle screen control device based on the device control table, and the mode control of the vehicle screen control device is set and switched to be as follows based on user use requirements and different use scenes: master-slave mode, distributed mode, independent mode, reverse control mode, and stand-alone mode. The classification management and the cooperative display of each screen are realized through the main control equipment, so that the use efficiency and the intelligent level of the multi-screen equipment in the vehicle are improved.
Description
Technical Field
The invention relates to a vehicle networking technology, in particular to interconnection and control among a plurality of equipment screens in a vehicle, which is convenient for passengers in the vehicle to better use electronic equipment in the vehicle.
Background
Under the wave of automobile intellectualization and networking, the technology of automobile intelligent cabins is gradually improved. The screen display device in the automobile has evolved from the earliest single-line digital display to the current smart cabin multi-screen display. With the continuous forward development of the intelligent cabin of the automobile, more and more screen display devices are arranged in the automobile, and the intelligent cabin is more and more intelligent.
The development of technology always requires the evolution of advanced control methodologies. With the increase of display screen devices in the vehicle, if effective control and management cannot be carried out, the use value of each screen cannot be maximized, and a lot of waste of display resources is brought. For automobile users, they may spend more money and inconvenience in use, making the functions of the devices more cumbersome and uncontrollable.
Therefore, an effective control method is needed for intelligent cockpit display, which can support the multi-position distributed arrangement of multiple screens in the vehicle and can effectively manage and display the screens. Therefore, the screen display resources are effectively utilized, and simpler and more convenient operation and use can be brought to the user.
Publication number CN 113296658A entitled "multi-screen interaction control method, system, and electronic device". The method comprises the steps that according to a first callback message transmitted when a response screen is newly accessed, a device identification of the newly accessed screen is obtained; controlling a graphic engine to create a corresponding graphic engine instance according to the equipment identifier of the newly accessed screen; transmitting the identification of the graphic engine instance to the created main interactive service engine instance, so that the main interactive service engine instance derives a slave interactive service engine instance corresponding to the new access screen; and recording the master-slave relationship of the master interactive service engine instance and the slave interactive service engine instance. By adopting the scheme, the universality of the multi-screen interaction technology can be improved. And controlling the graphic engine instance corresponding to the new access screen from the interactive service engine instance corresponding to the new access screen to output corresponding core service information, interactive service information and graphic elements to the new access screen by combining the core service data output by the core service engine, the interactive service data output by the interactive service engine and the graphic data output by the graphic engine.
The technology disclosed by the patent is not suitable for an on-vehicle network environment and is also not suitable for a screen control use scene with the interior of a vehicle.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for multi-screen distributed layout and multi-mode control of an automobile based on internet. The method is mainly used for managing and cooperatively displaying the multiple screen devices in the automobile so as to meet the use requirements of automobile users in different scenes.
The technical scheme for solving the problems is that the automobile central control equipment is used as the main control equipment of all other screen equipment, the distribution of control instructions and the decision of a control strategy can be carried out, and the other screen equipment is used as the slave control equipment and receives the control requirements and instructions of the main control equipment.
The invention provides a multi-vehicle screen device interconnection control method based on a networked automobile, which comprises the steps that a main control screen device broadcasts and sends a device discovery request instruction regularly, a device control table is created and maintained in real time according to a received slave control screen device response, the main control screen device sends a master-slave mode control instruction to slave control screen devices in the device control table, each slave control screen device is set to be a default master-slave control mode state, each slave control screen device replies the response to confirm that the current control state is the master-slave mode, the main control screen device controls and switches the vehicle screen control device based on the device control table, and the mode control of the vehicle screen control device is set and switched to be as follows based on user use requirements and different use scenes: master-slave mode/distributed mode/independent mode/reverse control mode/stand-alone mode.
Preferably, when a new device is added to the device control table, the master control screen device issues a master-slave control mode instruction, the state of the newly added slave control screen device is updated to a master-slave control working mode, the master control screen device resends the new control mode instruction according to the requirement, the slave control screen device updates the device state according to the new instruction, and meanwhile, the control list is updated.
Preferably, when the vehicle is powered on and started, the central control screen is initialized to be the master control screen device, the other screens are the slave control screen devices, the master control screen device creates a device control table, the device control table comprises a name list, a control mode and device state information of the slave control screen devices, only the master control screen device has read and write permissions on the device control table, and when the mode state of a certain slave control screen device is changed, the device control table is refreshed correspondingly.
Further preferably, the master control screen device broadcasts the device discovery request instruction periodically, if the slave control screen device responses are received, the slave control screen device is created in the device control table, the master control screen device sends a master-slave mode instruction, the slave control screen control device replies the response instruction, the master control screen device updates the state of the device control table, the slave control device is in the master-slave mode, if the slave control screen device responses are not received, the master control screen device is in the stand-alone mode, and the device control list is empty.
Further preferably, if the slave screen control device does not reply the control command response, the master screen control device repeatedly sends a new control mode command, and if the number of times of retransmission exceeds the limit number of times, the master screen control device updates the device control list, updates the state of the slave screen control device that does not reply, and switches the device state to the offline state.
Preferably, when the driving process enters the master-slave mode, each slave control screen needs to receive and execute the control instruction of the master control device, meanwhile, each slave control screen device has the autonomous control capability, autonomous interactive control can be performed between the slave control screen devices, and each slave control screen device receives the push command of the master control screen and controls screen display according to the own content.
Further preferably, when the in-vehicle business meeting is performed, the master screen control device transmits the distributed control pattern, the slave screen control device gives a response instruction, the master screen control device updates the device control table information, and the slave screen control devices in the device control list can only accept the content pushed by the master screen control device and cannot interact with each other.
Preferably, when each passenger in the vehicle has different requirements, the main control screen device issues an independent control instruction, the slave screen control device gives a response instruction, the main control screen device updates the corresponding device mode information in the device control table, and each slave screen control device displays the device mode information according to the own native function and can also perform independent human-computer interaction.
Further preferably, when it is necessary to give the control right of the in-vehicle screen device to the management of the other seat occupants, the master screen control device issues a reverse control instruction to the designated slave screen control device, the slave screen control device gives a response instruction, the master screen control device updates the corresponding device mode information in the device control table, the authorized slave screen control device reversely controls the master screen control device and the other slave screen control devices, only one slave screen control device is allowed to respond in the same time window to enter the reverse control mode, and the other slave screen control devices enter the master-slave mode state.
The invention also proposes an electronic device comprising: one or more processors; a memory; one or more application programs stored in the memory and configured to be loaded and executed by the one or more processors to perform the multi-on-vehicle screen device interconnection control method described above.
The present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described multi-vehicle-mounted-screen-device interconnection control method.
The method realizes the classified management and the cooperative display of each screen through the main control equipment under the environment that a plurality of screen equipment are arranged in the vehicle, so as to improve the use efficiency and the intelligent level of the multi-screen equipment in the vehicle.
Drawings
FIG. 1 is a main flow chart of the logic of the present invention;
FIG. 2 is a create device control list sub-flow diagram of the present invention;
FIG. 3 is a control mode switching sub-flowchart of the present invention;
FIG. 4 is a logic diagram of the master-slave mode of the present invention;
FIG. 5 is a logic diagram of the distribution pattern of the present invention;
FIG. 6 is a logic diagram of the standalone mode of the present invention;
FIG. 7 is a logic diagram of the reverse control mode of the present invention;
FIG. 8 is a logic diagram of the present invention in stand-alone mode.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Fig. 1 is a flowchart illustrating an implementation of the interconnection control method for the vehicle-mounted screen device according to the present invention, which includes: and creating an equipment control sub-process and controlling a mode switching sub-process. When the vehicle is powered on and started, the central control screen is initialized to be the master device, and the rest screens connected to the network are used as the slave devices. The main control screen device firstly creates a device control table, and all subsequent control switching related to the device mode is carried out based on the device control table. And after the equipment control table is created, the master control screen equipment sends a master-slave mode control instruction to the slave control equipment, and each slave control equipment is set to be in a default master-slave control mode state.
The device control table is a core table entry managed by the master device and the slave device, and comprises a name list of the slave device, a control mode of each device, device state information and other key control parameters. When the mode state of a certain slave device is changed, the device control table needs to be refreshed correspondingly. The device control table has access authority requirement, and only the master device has read and write authority to the device control table. The slave device does not have read-write authority to the device control table.
FIG. 2 is a diagram illustrating an example of a device control list creation sub-process of the present invention. The method comprises the steps that a main control screen device broadcasts a device discovery request instruction in a timing mode, if a slave device response is received, a slave control device is created in a device control table, then the main control device sends a master-slave mode instruction, the slave control device replies the response instruction, the main control device updates the state of the device control table, and the slave control device is in an online state and is in a master-slave mode; if no slave device response is received, the slave device is determined to be not on the network, the master device is in the single machine mode, and the device control list is empty.
After the system is started, the main control device broadcasts a device discovery request instruction in a network at a fixed time period, and the slave device needs to respond after receiving the device discovery request. The reply content contains the device name, the device activation status, and the control mode of the device. After receiving the response content, the main control device updates the device control table and fills the content. If the master control device does not receive the response information of a certain slave device in five continuous broadcast periods, the master control device modifies the state of the slave device in the control table to be the offline state.
The user can switch the control mode of each slave control device through the master control device. The master control device reads the slave control device in the networking state currently according to the device control table, then issues a master-slave mode instruction to set the network to be in a default master-slave mode state, each slave control device replies a control instruction response to confirm that the current control state is the master-slave mode, and the master control device issues a new control mode instruction. If the slave control equipment does not reply the control instruction response, the master control equipment repeatedly sends a new control mode instruction, if the retransmission times exceed the limit times, the master control equipment updates the equipment control list, updates the state of the slave control equipment which does not reply and prompts a user that the slave control equipment does not respond, and the equipment state is switched to the offline state.
Fig. 3 is a control mode switching sub-flowchart according to the present invention. The master control equipment judges whether equipment is accessed according to the created equipment control list, if the equipment in the list is accessed into the master equipment and issues a master-slave control mode instruction, the slave equipment updates the state, the master equipment issues a new control mode instruction, the slave equipment completes the state updating, and the master equipment updates the control list; if the slave equipment state is not updated completely, the retransmission times exceed the preset times (for example, 5 times), the corresponding equipment is prompted to control no response, and the equipment state is switched to the offline state; if no device is accessed in the list, the main device is in a single machine mode, and five available devices in the network are prompted.
The central control screen device can set the management control of the screen devices into the following modes according to the requirements of users and use scenes: master-slave mode, distributed mode, independent mode, reverse control mode, single machine mode.
FIG. 4 is a logic diagram of a master-slave control mode. Master-slave mode: when the vehicle is ignited, the system in the vehicle is completely started, the central control screen equipment sends a master-slave mode control signal to other screen equipment after being started, the slave control equipment needs to give a response instruction after entering the mode, and the master control equipment updates the corresponding equipment mode information in the equipment control table according to the response instruction. In this mode, each screen needs to receive and execute the control instruction of the master device, and each slave device has the autonomous control capability, so that the autonomous interactive control can be performed.
The master control screen device sends master-slave control commands, each slave control device (slave control devices 1, 2, 3, 4) is set to be in a default master-slave control mode, and each slave control device receives the master control push commands and controls screen display according to own content. The mode can be applied to the driving process, a driver controls the display content of the rear row display equipment, and meanwhile, the rear row passengers can carry out simple operations of switching programs, adjusting sound and the like.
Fig. 5 is a schematic diagram of the distributed mode control logic. Distribution mode: the slave control device enters a distribution mode state after receiving a distributed control instruction issued by the master control screen device, and after entering the mode, the slave control device needs to give a response instruction, so that the master control device updates the corresponding device mode information in the device control table. In this mode, the screen of the slave control device is completely taken over by the master control device, and the slave device only has a screen content display function and cannot perform self-owned interactive control. The main control equipment sends a distributed control mode, and the slave control equipment (1.2.3.4) in the equipment control list can only receive the content pushed by the main control equipment, cannot be controlled autonomously, and cannot interact with each other.
When the mode can be applied to business meetings in vehicles, a meeting host can push customized contents to each screen for display, and the contents displayed by each screen form an information display whole.
Fig. 6 shows a logic diagram of the independent mode. Independent mode: after receiving the independent control instruction issued by the main control screen device, the slave control device enters the state of the independent mode, after entering the mode, the slave control device needs to give a response instruction, and the main control device updates the corresponding device mode information in the device control table according to the response instruction. In this mode, each slave control device can display completely according to the own native function and can also carry out independent human-computer interaction. The mode can be applied to the situation that each passenger in the vehicle has different requirements, and can carry out independent display control.
Fig. 7 shows a logic diagram of the reverse control mode. And (3) reverse control mode: after receiving a reverse control instruction issued by the master control screen device, the slave control device enters a reverse mode state, after entering the mode, the slave control device needs to give a response instruction, and the master control device updates the corresponding device mode information in the device control table according to the response instruction. In this mode, an authorized slave will be able to reverse control the master and other network-accessed slaves.
In the reverse control mode, only one slave device is supported in the reverse control mode in the same time window, and other slave devices enter the master-slave mode state. The mode can be applied to application scenes that a driver needs to pay attention to driving and the control right of the screen device in the vehicle can be handed to other seat passengers for management.
A single machine mode: and when the main control equipment does not detect that other slave equipment is on the network, the main control equipment enters a stand-alone mode. FIG. 8 is a logic diagram of the single mode logic. In this mode, the main control device detects the network condition of other slave idle screen devices in a broadcasting mode at regular time, and if a new device is detected to join, a device control table is created immediately.
Claims (11)
1. A multi-vehicle screen device interconnection control method based on an internet automobile is characterized in that a master control screen device periodically broadcasts and sends a device discovery request instruction, a device control table is created and maintained in real time according to a received slave control screen device response, the master control screen device sends a master-slave mode control instruction to slave control screen devices in the device control table, each slave control screen device is set to be a default master-slave control mode state, each slave control screen device replies a response to confirm that the current control state is the master-slave mode, the master control screen device controls and switches the vehicle screen control device based on the device control table, and the mode control of the vehicle screen control device is set and switched to be as follows based on user use requirements and different use scenes: master-slave mode/distributed mode/independent mode/reverse control mode/stand-alone mode.
2. The method of claim 1, wherein when a new device is added to the device control table, the master control screen device issues a master-slave control mode command, the state of the newly added slave control screen device is updated to a master-slave control mode, the master control screen device resends the new control mode command as required, and the slave control screen device updates the device state according to the new command and updates the control list.
3. The method of claim 1, wherein when the vehicle is powered on and started, the central control screen is initialized to be the master control screen device, the rest screens are the slave control screen devices, the master control screen device creates a device control table, the device control table comprises a name list, control modes and device state information of the slave control screen devices, only the master control screen device has read and write rights to the device control table, and when the mode state of a certain slave control screen device is changed, the device control table is refreshed correspondingly.
4. The method of claim 1, wherein the master screen device periodically broadcasts the device discovery request command, if the slave screen device responds, the slave screen device is created in the device control list, the master screen device sends a master-slave mode command, the slave screen control device responds to the response command, the master screen device updates the device control list status, the slave control device status is master-slave mode, if the slave screen device responds, the master screen device is in the stand-alone mode, and the device control list is empty.
5. The method of claim 4, wherein if the slave screen device does not reply the control command, the master screen device repeatedly transmits a new control mode command, and if the number of retransmissions exceeds the limit number, the master screen device updates the device control list, updates the status of the slave screen device that does not reply, and switches the device status to a down status.
6. The method as claimed in any one of claims 1-5, wherein when the driving process enters the master-slave mode, each slave control screen needs to receive and execute the control command of the master control device, and each slave control screen device has the autonomous control capability and can perform autonomous interactive control with each other, and each slave control screen device receives the push command of the master control screen and controls the screen display according to the own content.
7. The method as claimed in any one of claims 1 to 5, wherein, when the in-vehicle business meeting, the master screen control device transmits the distributed control mode, the slave screen control device gives a response instruction, the master screen control device updates the device control table information, the slave screen control devices in the device control list can only accept the contents pushed by the master screen control device, and the slave screen control devices cannot interact with each other.
8. The method as claimed in any one of claims 1 to 5, wherein when each passenger in the vehicle has different requirements, the master control screen device issues an independent control command, the slave screen control device gives a response command, the master control device updates the corresponding device mode information in the device control table, and each slave screen control device performs display according to its own native function and also performs independent human-computer interaction.
9. The method as claimed in any one of claims 1 to 5, wherein when it is desired to give control of the in-vehicle screen device to be managed by the occupants of other seats, the master screen control device issues a reverse control instruction to the designated slave screen control device, and gives a response instruction from the slave screen control device, the master screen control device updates the corresponding device mode information in the device control table, and is authorized to control the master screen control device and the other slave screen control devices in reverse from the screen control device, and only one slave screen control device is allowed to respond in the reverse control mode and the other slave screen control devices enter the master-slave mode state within the same time window.
10. An electronic device, comprising: one or more processors; a memory; one or more application programs stored in the memory and configured to be loaded and executed by the one or more processors to perform the multi-vehicle screen device interconnection control method of any one of claims 1-9.
11. A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the multi-vehicle-screen device interconnection control method of one of claims 1 to 9.
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| CN202210333274.7A CN114666371B (en) | 2022-03-31 | 2022-03-31 | Multi-vehicle-mounted screen equipment interconnection control method, equipment and storage medium |
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| CN202210333274.7A CN114666371B (en) | 2022-03-31 | 2022-03-31 | Multi-vehicle-mounted screen equipment interconnection control method, equipment and storage medium |
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| CN114666371B CN114666371B (en) | 2023-05-23 |
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