CN114666371B - Multi-vehicle-mounted screen equipment interconnection control method, equipment and storage medium - Google Patents
Multi-vehicle-mounted screen equipment interconnection control method, equipment and storage medium Download PDFInfo
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- 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
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H04W—WIRELESS COMMUNICATION NETWORKS
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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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Abstract
The invention discloses a multi-vehicle-mounted screen equipment interconnection control method based on an internet-connected automobile, which comprises the steps that a master control screen equipment regularly broadcasts and sends equipment discovery request instructions, responds from control screen equipment, creates an equipment control table and maintains the equipment control table in real time, the master control screen equipment sends a master-slave mode control instruction to slave control equipment in the equipment control table, sets each slave control screen equipment as a default master-slave control mode state, replies and responds to confirm that the current control state is a master-slave mode, and the master control equipment controls and switches the whole-vehicle-mounted screen control equipment based on the equipment control table and sets and switches the mode control of the vehicle-mounted screen control equipment into the following modes based on user use requirements and different use scenes: master-slave mode, distributed mode, independent mode, reverse control mode, stand-alone mode. The classification management and collaborative 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 the technology of internet of vehicles, 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 in-vehicle electronic equipment.
Background
Under the conditions of intelligent and networking of automobiles, the technical innovation of the automobile intelligent cabin industry is changed day by day. In-car screen display devices have evolved from the earliest single-line digital display to the current intelligent cockpit multi-screen display. With the continuous forward development of intelligent cabins of automobiles, more and more screen display devices in automobiles are more and more intelligent.
The development of technology always requires the matched evolution of advanced control methods. With the increase of display screen devices in a vehicle, if effective control and management cannot be performed, the use value of each screen cannot be exerted to the maximum, and a lot of display resources are wasted. For automobile users, more money may be spent on the users, and inconvenience is brought to the users in use, so that the functions of the equipment are more complicated and uncontrollable.
Therefore, an effective control method is needed for intelligent cabin display, which not only supports multi-position distributed arrangement of multiple screens in a vehicle, but also can effectively manage and display the screens. Therefore, the screen display resource is effectively utilized, and simpler and more convenient operation and use can be brought to the user.
Publication number CN 113296658A, entitled "multi-screen interactive control method, system, and electronic device". Acquiring a device identifier of a new access screen according to a first callback message transmitted when the screen is newly accessed; controlling a graphic engine to create a corresponding graphic engine instance according to the equipment identifier of the new access screen; transmitting the identification of the graphic engine instance to the created master interactive service engine instance, so that the master interactive service engine instance derives a slave interactive service engine instance corresponding to the new access screen; and recording the master-slave relationship between 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 the graphic engine instance corresponding to the new access screen is controlled by the slave interaction service engine instance to output corresponding core service information, interaction service information and graphic elements to the new access screen according to the core service data output by the core service engine, the interaction service data output by the interaction service engine and the graphic data output by the graphic engine.
The technology disclosed in this patent is not suitable for an on-board network environment, nor is it suitable for a screen control usage scenario with the interior of a vehicle.
Disclosure of Invention
The invention provides a method for distributed arrangement and multi-mode control of multiple screens based on a network-connected automobile aiming at the problems in the prior art. The method is mainly used for managing and cooperatively displaying a plurality of screen devices in the automobile so as to meet the use requirements of automobile users in different scenes.
The technical scheme of the invention 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 control strategies can be carried out, and the other screen equipment is used as the auxiliary control equipment, and the control requirements and the instructions of the main control equipment are received.
The invention provides a multi-vehicle-mounted screen equipment interconnection control method based on an internet-connected automobile, which is characterized in that a master control screen equipment regularly broadcasts and sends equipment discovery request instructions, an equipment control table is created and maintained in real time according to received slave control screen equipment responses, the master control screen equipment sends a master-slave mode control instruction to the slave control screen equipment in the equipment control table, each slave control screen equipment is set to a default master-slave control mode state, each slave control screen equipment replies to acknowledge that the current control state is a master-slave mode, the master control screen equipment controls and switches the whole-vehicle-mounted screen control equipment based on the equipment control table, and the mode control of the vehicle-mounted screen control equipment is set and switched into the following modes based on user use demands and different use scenes: master-slave mode/distributed mode/independent mode/reverse control mode/stand-alone mode.
Further preferably, when a new device is added in the device control table, the master control screen device issues a master-slave control mode instruction, the state of the slave control screen device is updated to be the master-slave control working mode, the master control screen device resends the new control mode instruction according to the requirement, and the slave control screen device updates the device state according to the new instruction and updates the control list.
Further preferably, when the vehicle is powered on and started, the central control screen is initialized to be a master control screen device, the rest screens are 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 the right of reading and writing on the device control table, and when the mode state of a certain slave control screen device changes, the device control table is correspondingly refreshed.
Further preferably, the master control screen device periodically broadcasts and sends a device discovery request instruction, if a slave control screen device response is received, the slave control screen device is created in a 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 performs device control table state update, the slave control device state is in a master-slave mode, if no slave control screen device response is received, the master control screen device is in a stand-alone mode, and the device control list is empty.
Further preferably, if the slave control screen device does not reply to the control instruction response, the master control screen device repeatedly transmits a new control mode instruction, and if the number of retransmissions exceeds the limit number, the master control screen device updates the device control list, updates the status of the slave control screen device which does not reply, and switches the status of the slave control screen device to the offline status.
Further preferably, in the driving process, in the master-slave mode, each slave control screen needs to receive and execute a control instruction of the master screen control device, meanwhile, each slave control screen device has autonomous control capability, self-organized interaction control can be performed between each slave control screen device, and each slave control screen device receives a master control screen pushing command and simultaneously controls screen display according to self-owned content.
Further preferably, when the in-vehicle business meeting is performed, the master screen control device sends a distributed control mode, the slave screen control device gives a response instruction, the master screen control device updates device control table information, the slave screen control devices in the device control list only can receive content pushed by the master screen control device, and all the slave screen control devices cannot interact with each other.
Further preferably, when different demands are made by each passenger in the vehicle, the master control screen device issues an independent control instruction, 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, and each slave screen control device displays according to own original functions and can also perform independent human-computer interaction.
Further preferably, when the control right of the in-vehicle screen device needs to be given to other seat occupants for management, 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 corresponding device mode information in the device control table, the slave screen control device is authorized to reversely control the master screen control device and other access slave screen control devices, only one slave screen control device is allowed to answer to enter a reverse control mode in the same time window, and the other slave screen control devices enter a master-slave mode state.
The invention also proposes an electronic device comprising: one or more processors; a memory; one or more applications 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 proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described multi-on-vehicle screen device interconnection control method.
The method of the invention realizes the classification management and collaborative display of each screen through the main control equipment in the environment of a plurality of screen devices in the vehicle, so as to improve the use efficiency and the intelligent level of the multi-screen devices in the vehicle.
Drawings
FIG. 1 is a logic flow diagram of the present invention;
FIG. 2 is a sub-flowchart of the present invention for creating a device control list;
FIG. 3 is a control mode switching sub-flowchart of the present invention;
FIG. 4 is a master-slave mode logic diagram of the present invention;
FIG. 5 is a logic diagram of a distribution pattern according to the present invention;
FIG. 6 is a schematic diagram of the independent mode logic of the present invention;
FIG. 7 is a logic diagram of a reverse control mode of the present invention;
FIG. 8 is a single-machine mode logic diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Fig. 1 shows a flowchart of implementing the interconnection control method of the vehicle-mounted screen device, which includes: creating a device control table sub-flow and controlling a mode switching sub-flow. When the vehicle is powered on and started, the central control screen is initialized as a master device, and the rest screens connected under the network are used as slave devices. The master screen device first creates a device control table on which all subsequent control switches regarding device modes are based. After the device control table is created, the master control screen device sends a control command of a master-slave mode to the slave control devices, and each slave control device is set to be in a default state of the master-slave control mode.
The device control list is a core list item managed by the master device and the slave device, and comprises key control parameters such as a name list of the slave device, a control mode of each device, device state information and the like. When the mode state of a certain slave device changes, the device control table needs to be refreshed correspondingly. The device control table has access rights requirements and only the master device has read and write rights to the device control table. The slave device does not have read-write rights to the device control table.
FIG. 2 is a diagram illustrating an exemplary sub-flow for creating a device control list in accordance with the present invention. The master control screen device regularly broadcasts and sends a device discovery request instruction, if receiving a slave device response, the slave control device is created in a device control table, then the master control device sends a master-slave mode instruction, the slave control device replies the response instruction, the master control device updates the device control table state, and the slave control device state is an on-line state and is in a master-slave mode; if the slave device response is not received, the slave device is determined to be on the network, the master device is in a stand-alone mode, and the device control list is empty.
After the system is started, the main control equipment broadcasts an equipment discovery request instruction in the network in a fixed time period, and the slave equipment needs to answer after receiving the equipment 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 in the content. If the master control device does not receive the response information of a certain slave device in five continuous broadcasting periods, the master control device modifies the state of the slave device into the offline state in the control table.
The user can switch the control mode of each slave control device through the master control device. The master control equipment reads the slave control equipment currently in the networking state according to the equipment control table, then issues a master-slave mode instruction to set the network to a default master-slave mode state, each slave control equipment replies a control instruction response to confirm that the current control state is the master-slave mode, and the master control equipment 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 is not responded and prompts the user that the slave control equipment does not respond, and the equipment state is switched to the off-line state.
Fig. 3 is a control mode switching sub-flowchart of the present invention. The master control equipment judges whether equipment is accessed according to the created equipment control list, if so, the equipment in the list accesses the master equipment to issue a master-slave control mode instruction, the slave equipment performs state update to finish the state update, the master equipment issues a new control mode instruction, the slave equipment completes the state update, and the master equipment updates the control list; if the slave device state is not updated, the retransmission times exceeds the preset times (for example, 5 times), the corresponding device control is prompted to be unresponsive, and the device state is switched to the off-line state; if no device in the list is accessed, the master device is in a stand-alone mode, prompting five available devices in the network.
The central control screen device can set management control of a plurality of screen devices into the following modes according to user requirements and usage scenes: master-slave mode, distributed mode, independent mode, reverse control mode, stand-alone mode.
Fig. 4 is a schematic diagram of master-slave control mode logic. Master-slave mode: when the vehicle ignites, the system in the vehicle is fully started, after the central control screen device is started, a master-slave mode control signal is sent to other screen devices, after the mode is entered, 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. In this mode, each screen needs to receive and execute a control instruction of the master device, and each slave device has an autonomous control capability and can perform self-organized interactive control.
The master control screen device sends a master-slave control command, sets each slave control device (slave control devices 1,2,3 and 4) to a default master-slave control mode, and each slave control device receives the master control push command 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, rear-row passengers can switch programs, adjust sound and other simple operations.
A schematic diagram of the distributed mode control logic is shown in fig. 5. Distribution pattern: after receiving the distributed control instruction issued by the master control screen device, the slave control device enters a distributed mode state, 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-organized interactive control. The master control equipment sends a distributed control mode, and slave control equipment (1.2.3.4) in the equipment control list can only receive content pushed by the master control equipment, cannot be controlled autonomously and cannot interact with each other.
When the mode can be applied to the in-car business conference, the conference host can push the customized content to each screen for display, so that the content displayed by each screen forms an information display whole.
A separate mode logic diagram is shown in fig. 6. Independent mode: after receiving the independent control instruction issued by the main control screen device, the slave control device enters an independent mode state, 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. In this mode, each slave control device can display according to its own native function, or can perform independent man-machine interaction. The mode can be applied to the situation that different demands are made on each passenger in the vehicle, and independent display control can be carried out.
A reverse control mode logic diagram is shown in fig. 7. Reverse control mode: after receiving the reverse control instruction issued by the main control screen device, the slave control device enters a state of a reverse 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. In this mode, the authorized slave device will be able to control the master device in reverse as well as other slave devices that have access to the network.
In the reverse control mode, only one slave device is supported in the same time window, and other slave devices enter the master-slave mode state. The mode can be applied to application scenes in which a driver needs to concentrate on driving and control rights of in-vehicle screen equipment can be given to other seat passengers for management.
Single machine mode: when the master control equipment does not detect that other slave equipment is in the network, the master control equipment enters a stand-alone mode. A single mode logic schematic is shown in fig. 8. In the mode, the master control device regularly detects the network condition of other slave idle screen devices in a broadcasting mode, and if a new device is detected to join, a device control table is immediately created.
Claims (6)
1. The method is characterized in that a master control screen device periodically broadcasts and sends a device discovery request command, a device control table is created and maintained in real time according to received responses of slave control screen devices, the master control screen device sends a master-slave mode control command to the slave control screen devices in the device control table, each slave control screen device is set to a default master-slave control mode state, each slave control screen device replies to acknowledge that the current control state is a master-slave mode, the master control screen 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 into the following modes based on user use requirements and different use scenes: master-slave mode/distributed mode/independent mode/reverse control mode/stand-alone mode;
when new equipment is added in the equipment control table, the master control screen equipment issues a master-slave control mode instruction, the state of the slave control screen equipment with the new addition is updated to a master-slave control working mode, the master control screen equipment resends the new control mode instruction according to the requirement, and the slave control screen equipment updates the equipment state according to the new instruction and updates the control list;
in the driving process, in a master-slave mode, each slave control screen needs to receive and execute a control instruction of the master control screen equipment, meanwhile, each slave control screen equipment has autonomous control capability, self-organized interaction control can be performed between each slave control screen equipment, each slave control screen equipment receives a master control screen pushing command and simultaneously controls screen display according to self-owned content;
when a business meeting is carried out in a vehicle, the master control screen equipment sends a distributed control mode, the slave control screen equipment gives a response instruction, the master control screen equipment updates equipment control table information, the slave control screen equipment in the equipment control list only can receive the content pushed by the master control screen equipment, and all the slave control screen equipment cannot interact with each other;
when different demands are made on each passenger in the vehicle, the main control screen device issues independent control instructions, the main control screen device gives response instructions, the main control screen device updates corresponding device mode information in a device control table, and each auxiliary control screen device displays according to own original functions and can also perform independent man-machine interaction;
when the control right of the in-car screen device is required to be managed by other seat passengers, the main control screen device issues a reverse control command to the appointed slave control screen device, the slave control screen device gives a response command, the main control screen device updates corresponding device mode information in a device control table, the slave control screen device is authorized to reversely control the main control screen device and other slave control screen devices, only one slave control screen device is allowed to answer to enter a reverse control mode in the same time window, and the other slave control screen devices enter a master-slave mode state.
2. The method of claim 1, wherein when the vehicle is powered on, the central control screen is initialized as a master control screen device, the remaining screens are slave control screen devices, the master control screen device creates a device control table containing a list of names of the slave control screen devices, a control mode, and device state information, and only the master control screen device has permission to read and write the device control table, and when the mode state of a certain slave control screen device changes, the device control table is refreshed accordingly.
3. A method according to claim 1, characterized in that the master screen device periodically broadcasts a send device discovery request command, if a slave control screen device response is received, the slave control screen device is created in the device control table, the master control screen device sends a master slave mode command, the slave control screen device replies a response command, the master control screen device updates the device control table status, the slave control screen device status is master slave mode, if no slave control screen device response is received, the master control screen device is in stand-alone mode, and the device control list is empty.
4. The method of claim 1, wherein if the slave control screen device does not reply to the control command response, the master control screen device repeatedly transmits a new control mode command, and if the number of retransmissions exceeds the limit number, the master control screen device updates the device control list, updates the state of the slave control screen device that does not reply and switches the state of the device to the off-line state.
5. 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 of one of claims 1-4.
6. A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the multi-on-vehicle screen device interconnection control method of one of claims 1-4.
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