CN112039741A

CN112039741A - Display device, control terminal and device control system based on NFC

Info

Publication number: CN112039741A
Application number: CN202010922183.8A
Authority: CN
Inventors: 王龙龙; 耿炳钰; 张兰鹏
Original assignee: Hisense Mobile Communications Technology Co Ltd
Current assignee: Hisense Mobile Communications Technology Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-12-04
Anticipated expiration: 2040-09-04
Also published as: CN112039741B

Abstract

The application provides a display device, control terminal and equipment control system based on NFC, when the execution equipment control, control terminal can respond the control action generation data label of user's input to continuously monitor the response of NFC subassembly, have the response back at the NFC subassembly, directly send the data label for maincenter controlgear through the NFC subassembly. The central control device can analyze the received data label to obtain control information, and uniformly distribute the control information to the corresponding controlled device to realize the control of the controlled device. The system can physically prevent the transmitted control information from being falsified through near field communication, thereby being suitable for the application field with higher safety requirements.

Description

Display device, control terminal and device control system based on NFC

Technical Field

The application relates to the technical field of equipment control, in particular to display equipment, a control terminal and an equipment control system based on NFC.

Background

In the fields of intelligent home, intelligent industrial manufacturing and the like, a plurality of controllable devices can be arranged according to actual requirements. A plurality of controllable devices can establish network connection, and each controllable device can be controlled by a control device to control the operation state of the regulator so as to meet different requirements in life and production. For example, in an intelligent home system, a plurality of household appliances may be connected via a wireless network, and the operating state of each household appliance may be controlled via a remote controller, an intelligent terminal, and other devices.

In order to realize the control of the device, the control terminal can send a control instruction or a configuration file to the controlled device through network connection, so that the controlled device automatically adjusts the running state of the controlled device after receiving the control instruction or the configuration file. Generally, the control command or the configuration file may be issued to a specific controlled device through a web server. For example, after configuring the functions, the terminal device sends the configuration file to a network server through the network, and the network server routes the configuration file to the controlled device.

Therefore, the control mode depending on the network has a high requirement on the security of the network, and when the network has a security risk, the transmitted control instruction or configuration file may be tampered due to network attack, so that the control instruction or configuration file transmitted to the controlled device is wrong, and a predetermined control task cannot be completed. Therefore, the control method depending on the network is not suitable for the field with high security requirement.

Disclosure of Invention

The application provides display equipment, a control terminal and an equipment control system based on NFC, and aims to solve the problem that a traditional control method is not suitable for the field with higher safety requirements.

In a first aspect, the present application provides a display device comprising: a display, an NFC component, a communicator, and a controller. Wherein the controller is configured to:

sending the state information to the control terminal through the NFC component, wherein the content of the state information is a screen projection starting state;

receiving a control instruction fed back by the control terminal, wherein the control instruction is generated when the control terminal judges that the state information is a screen projection starting state;

responding to the control instruction, and acquiring screen projection data through the communicator;

and controlling the display to display a screen projection picture corresponding to the screen projection data.

As can be seen from the above technical solutions, the display device provided in the first aspect of the present application includes: a display, an NFC component, a communicator, and a controller. The controller can send state information to the control terminal through the NFC component, acquire screen projection data through the communicator after receiving the control instruction, and control the display to display a screen projection picture corresponding to the screen projection data to finish screen projection. The display equipment can automatically set screen projection related programs through interaction among the NFC components, so that control information transmitted is prevented from being falsified physically, and the display equipment is suitable for application fields with high safety requirements.

In a second aspect, the present application further provides a control terminal, where the control terminal may establish a network connection with a display device, and is configured to perform screen projection control on the display device; NFC components are arranged on the control terminal and the display equipment; the control terminal is configured to:

acquiring a screen projection instruction for starting screen projection;

responding to the screen projection instruction, and monitoring the NFC component;

if the NFC component responds, acquiring the state information of the display equipment through the NFC component;

generating a control instruction according to the state information;

and sending the control instruction to the display equipment.

According to the technical scheme, the control terminal provided by the second aspect of the application can monitor the NFC component after executing screen projection front operation to acquire the state information of the display device, and generate the control instruction according to the state information to control and complete screen projection operation of the control terminal and the display device. The control terminal can automatically complete the control of the control terminal and the display equipment by utilizing the interaction between the NFC components, and physically prevents the transmitted control information from being falsified, so that the method is suitable for the application field with higher safety requirements.

In a third aspect, the present application further provides an NFC-based device control system, including: the control system comprises a control terminal, controlled equipment and central control equipment; the control terminal is provided with an NFC component, and the central control equipment is provided with a radio frequency receiving device; the central control equipment establishes communication connection with the controlled equipment;

the control terminal is configured to: responding to a control action input by a user to generate a data label; after monitoring that the NFC component responds, sending the data tag to the hub control equipment through the NFC component;

the hub control apparatus is configured to: acquiring the data tag through the radio frequency receiving device; parsing the data tag to obtain control information; and sending the control information to the controlled device.

According to the technical scheme, when the NFC-based device control system provided by the third aspect of the application executes device control, the control terminal can respond to the control action input by the user to generate the data tag and continuously monitor the response of the NFC component, and after the NFC component responds, the data tag is directly sent to the hub control device through the NFC component. The central control device can analyze the received data label to obtain control information, and uniformly distribute the control information to the corresponding controlled device to realize the control of the controlled device. The system can physically prevent the transmitted control information from being falsified through near field communication, thereby being suitable for the application field with higher safety requirements.

In a fourth aspect, the present application further provides an NFC-based device control system, including: the system comprises a control terminal and controlled equipment; NFC components are arranged on the control terminal and the controlled equipment;

the control terminal is configured to: after monitoring that the NFC component responds, acquiring the state information of the controlled equipment through the NFC component; generating a control instruction according to the state information;

the controlled device is configured to: sending, by the NFC component, the state information.

According to the technical scheme, the NFC-based device control system provided by the fourth aspect of the application can be used for acquiring the state information from the controlled device through the NFC component after the NFC component is pushed to respond through the control terminal, generating the control instruction according to the acquired state information, sending the generated control instruction to the controlled device through the NFC component, or directly executing the control instruction by the control terminal to set the control terminal, and controlling the controlled device after the setting is completed. The system can obtain the state information of the controlled equipment through the NFC component, so that the setting of the controlled equipment or the control terminal is rapidly completed, the control information transmitted is physically prevented from being falsified, and the system is suitable for the application field with higher safety requirements.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an NFC-based device control system in an embodiment of the present application;

FIG. 2 is a schematic diagram of a control flow of an apparatus according to an embodiment of the present application;

fig. 3 is a schematic diagram of a connection structure of a cloud server in an embodiment of the present application;

FIG. 4 is a schematic flow chart of a configuration list of detection devices in an embodiment of the present application;

fig. 5 is a schematic structural diagram of another NFC-based device control system in this embodiment of the present application;

FIG. 6 is a schematic diagram of another apparatus control flow in the embodiment of the present application;

FIG. 7 is a schematic view of a screen shot in an embodiment of the present application;

fig. 8 is a schematic flowchart illustrating a process of transmitting status information through an NFC component in the embodiment of the present application;

fig. 9 is a schematic flowchart of generating pairing information according to connection information in the embodiment of the present application;

fig. 10 is a flowchart illustrating execution of a control instruction according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.

In this embodiment, the device control system may include a plurality of devices that establish communication connection with each other. Wherein at least one device can be operated by a user to control the operation of other devices. The device that is operated by the user in the embodiment of the present application is referred to as a control terminal 100, and may be an intelligent terminal device or a controller having a control function. For example, the control terminal 100 may be an intelligent terminal device such as a mobile phone, a computer, a tablet computer, and a smart television, or may be a dedicated server provided in a device control system.

The other devices in the device control system are referred to as controlled devices 200. The type of the controlled device 200 may be different according to different application scenarios of the device control system, and the controlled device 200 may be different types of devices in the same device control system. For example, in the field of smart home, a mobile phone may be interconnected with an intelligent device disposed indoors through a wireless network to control the operation of the intelligent device. Wherein the intelligent devices can be a water heater 200-1, an air conditioner 200-3, a television set 200-4, electric lamps 200-2 distributed in each room, and the like. The user can perform operation through the mobile phone to control the running state of each intelligent device, such as controlling the lighting or extinguishing of an electric lamp in any room.

In order to enable operations to be performed by the user, the control terminal 100 may have built-in display screens or the like capable of providing interactive control. Meanwhile, the control terminal 100 may further provide a specific control interface, so that a user may complete interactive control through the control interface. In some embodiments, in order to provide a specific control interface, an application program for implementing device control may be installed on the control terminal 100. For example, in the field of smart home, an APP adapted to the controlled device 200 may be installed by a mobile phone, and the same application program may be used to complete device control between different home appliances of the same brand or different brands having a unified control protocol. If can control "the wisdom of the home" APP of the home appliance of the haixin brand, can control "the rice family" APP of the home appliance of the millet brand, etc.

After the user enters the application program through the control terminal 100, the control terminal 100 may display a list of the controlled devices 200 in the control interface, and the user may select any one or more controlled devices 200 in the list of the controlled devices to perform an interactive operation. For example, in the field of smart home, a user can present all home appliances of the same brand of maritime information in the current network environment after opening a "comet-share" APP. The user can click any household appliance control icon, such as a 'living room lamp' icon, so as to control the living room lamp, and the control content can comprise 'on/off', 'brightness adjustment', 'lighting mode' and the like.

After the user performs the interactive operation, the application program may generate a control instruction for the interactive process of the user, so as to send the control instruction to the corresponding controlled device 200 through the network. For example, when the user sequentially executes control operations for realizing "on", "brightness 50%", and "eye protection mode" in the control interface corresponding to "hall lantern" in "funeral home" APP, the APP generates a control command corresponding to the control method. And then the control instruction is sent to the lamp equipment in the living room through a wireless network by calling the wireless network module of the mobile phone.

After receiving the control instruction, the controlled device 200 may perform a relevant operation according to the control instruction to achieve an effect corresponding to the control instruction. For example, after receiving the control command, the "lamp" device in the living room may perform a switching operation, a brightness adjustment operation, a color temperature adjustment operation, and the like, respectively, so that the living room lamp is adjusted to 50% brightness in an eye protection mode after being turned on.

In order to transmit the control instruction to the controlled device 200, the control terminal 100 may be connected to the controlled device 200 through a network. That is, in the above-described device control process, the control terminal 100 transmits a control instruction to the corresponding controlled device 200 through the network. In practical applications, the control terminal 100 and the controlled device 200 may be disposed in a local area network in the same region to implement control in the same local area network, or disposed in different regions via a connection relationship established via the internet to implement remote control.

Since the control instructions are transmitted over the network, the security of the network will directly affect the control process. Especially, in the remote control process, the control terminal 100 needs to send the control command to the internet, and then forward the control command to the controlled device 200 through the relay device such as the cloud server. Therefore, in the transmission process, the control instruction is possible to be tampered for many times, so that the control mode completely depending on the internet is not suitable for a scene with a high requirement on safety.

In order to adapt to a scenario with high security, some embodiments of the present application provide an NFC-based device control system. As shown in fig. 1, the appliance control system includes: a control terminal 100, a controlled device 200, and a central control device 300. The control terminal 100 is used for executing a control action, and may be an intelligent terminal device such as a mobile phone. The controlled device 200 is various functional devices in the current application scenario, and may be smart home devices, industrial production devices, and the like. After the controlled device 200 is deployed, the controlled device 200 supports the control of the controlled terminal 100, so that after the control terminal 100 sends out the control instruction, the controlled device 200 can adjust the operating state thereof according to the control instruction.

The hub control apparatus 300 establishes a communication connection with the controlled apparatus 200, thereby constructing a regional network based on the hub control apparatus 300 to transmit/convert the control command through the hub control apparatus 300. The hub control apparatus 300 may be a stand-alone controller apparatus such as a main server or the like; or may be a network support device such as a router, switch, etc. The central control device 300 may uniformly schedule the controlled devices 200 according to the control instruction sent by the control terminal 100, so in practical applications, the control terminal 100 may send the control instruction to the central control device 300 first, and then the central control device 300 forwards the control instruction to each controlled device 200.

The control terminal 100 is provided with an NFC component 401, and the central control device 300 is provided with a radio frequency receiving device. Among them, an NFC (Near Field Communication) component is a wireless Communication component that can exchange data when two devices are close to each other. The NFC component on the control terminal 100 may integrate the functional elements of an inductive card reader, an inductive card and a point-to-point communication on a single chip, sending data via radio frequency signals. The transmitted data can be received by the radio frequency receiving device to complete data transfer. Therefore, the control terminal 100 can transmit the control command through the NFC component 401, and the central control apparatus 300 receives the control command transmitted by the NFC component 401 through the radio frequency receiving device, so as to transfer the control command from the control terminal 100 to the central control apparatus 300.

It should be noted that the radio frequency receiving device disposed on the central control apparatus 300 may also be an NFC component. The NFC component may be set to different modes, such as a transmit mode and a receive mode, and the mode of the NFC component may be changed as needed during data transfer. That is, the data transferred by the NFC component is bidirectional, and the data can be transmitted from the control terminal 100 to the hub control apparatus 300 and also transmitted from the hub control apparatus 300 to the control terminal 100.

Specifically, as shown in fig. 2, to complete the data transfer, the control terminal 100 is configured to execute the following program steps:

s110: responding to a control action input by a user to generate a data label;

s120: after listening that the NFC component 401 has a response, the data tag is sent to the hub control device 300 through the NFC component 401.

In the device control process, the user may first perform a series of control actions on the control terminal 100 to set control information of the controlled device 200. For example, a user may sequentially execute a control action of selecting "hall lantern" - "on" in a control interface provided by control terminal 100, and after the user inputs an action instruction, control terminal 100 may generate a data tag corresponding to the control action in response to the control action.

The data tag is signal data which can be transmitted through the NFC component 401 and is packaged with a control instruction corresponding to a control action. The data tag may be defined as a specific data format, including identification information of the controlled device 200 and a status value to be set. For example, the data tags that control the activation of the hall lights may include: the controlled device 200 identification information is: "light 0001", the state values to be set are: "1".

After generating the data tag, the smart terminal may set the mode of NFC component 401 to a listening mode. At this time, the user can bring the control terminal 100 close to the rfid area of the hub control apparatus 300. When the control terminal 100 is close to the active area of the rfid area, the NFC component 401 in the listening mode generates a response, that is, it represents that the current NFC component can implement data transmission, so that the control terminal 100 can send the data tag to the hub control device 300 through the NFC component 401.

As can be seen, in this embodiment, the control terminal 100 may generate a data tag according to the control action after the user inputs the control action, and set the NFC component 401 to the listening mode, so as to generate a response and send the data tag to the hub control device 300 when the user brings the control terminal 100 close to the rfid area. Since the NFC component 401 is used to implement data transfer, data may not be transferred between the control terminal 100 and the controlled device 200 using a network, and since there is no intermediate medium when the NFC component 401 transfers data, the risk of being tampered during transmission may be alleviated.

Accordingly, after the control terminal 100 transmits the data tag, as shown in fig. 2, the hub control device 300 is configured to execute the following program steps:

s210: acquiring the data tag through the radio frequency receiving device;

s220: parsing the data tag to obtain control information;

s230: the control information is sent to the controlled device 200.

The central control device 300 may first obtain the data tag sent by the control terminal 100 from the radio frequency receiving apparatus, and analyze the data tag according to the rule adapted to the control terminal 100, so as to obtain the control information. Obviously, in the control terminal 100 and the central control device 300, it is necessary to configure appropriate debugging and encoding modes, for example, both adopt an NFC protocol framework based on the ISO/IEC standard for data interaction, the operating frequency of the NFC component 401 is 13.56MHZ, and the effective distance is less than 10 CM.

The control information may include a plurality of control instructions for controlling a plurality of controlled apparatuses 200, respectively, or for a plurality of controls of one or more controlled apparatuses 200. After parsing the control information, the central control apparatus 300 may forward the corresponding control instruction to the controlled apparatus 200 by reading the target controlled apparatus 200 specified in the control information. For example, if the hub control apparatus 300 resolves the control information that the target controlled apparatus 200 designated by the control command is "hall lantern", the address information of the controlled apparatus 200 may be determined based on the pre-record, and the control command may be transmitted to the hall lantern according to the address information. Meanwhile, the central control apparatus 300 may further extract the corresponding state value of "1" in the control command in the data tag, that is, the control content is "on" for the representative.

As can be seen from the above technical solutions, the NFC-based device control system provided in the above embodiments may edit the control instruction information of the controlled device 200 in advance at the control terminal 100, then get close to the radio frequency identification area of the central control device 300, transmit the edited control instruction to the central control device 300 through radio frequency interaction, and then distribute the edited control instruction to the controlled device 200, thereby completing all configurations without additional operations.

In some embodiments of the present application, the device control process described above may be implemented by using an NFC host card emulation function. That is, the control terminal 100 is installed with a control application, and in the step of generating the data tag in response to the control action input by the user, the control terminal 100 is configured to:

s111: acquiring a control action input by a user in the control application;

s112: setting the control information according to the equipment configuration list and the control action in the control application;

s113: encapsulating the control information to generate the data tag.

A control application is installed in control terminal 100 to enable interfacing user input with NFC component 401 to obtain control actions of the user input through the control application. To facilitate the generation of the control information, a device configuration list may also be configured in the control application to set the control information in accordance with the device configuration list and the control action. All the controlled devices 200 in the current application scenario and their supported control state values may be included in the device configuration list. The device configuration list may be stored in partitions in the control terminal 100 and invoked each time the user opens the APP to display the operation controls on the control interface.

The user can set control information according to the device configuration list and the control action by executing the interaction action on the operation interface, that is, the control information is set according to the interaction rule formulated in the control application. For example, a state value of "1" defining a lamp device represents "on"; "0" represents "off". And after the user clicks on the switch control corresponding to the lamp, the state value of the lamp equipment is changed, and if the lamp is turned on, the state value is set to be 1. It can be seen that by setting a control application on the control terminal 100, control instructions can be simulated by software as data tags containing specific content so that the control instructions can be transmitted to the controlled device 200.

Also, in order to complete the distribution of the control instruction, an apparatus control list may be configured in the hub control apparatus 300. The device control list includes information of all the controlled devices 200 connected to the hub control device 300, such as device identification information, address information, current status values, and the like. By matching the corresponding data tag in the device control list, the control information can be analyzed from the data tag, and finally the controlled device 200 is controlled.

Therefore, in some embodiments of the present application, the hub control apparatus 300 is further configured to:

s221: acquiring a device control list;

s222: matching the device identification information and the state value in the device control list to obtain a device address and generate an action instruction;

s223: and sending the action instruction to the controlled device 200 according to the device address.

After receiving the data tag, the central control device 300 may first call the device control list, and match the device control list with the control information parsed from the data tag, thereby determining the device address and the action command. For example, the electric light devices controlled by a certain smart home scene include a living room electric light, a kitchen electric light, a main bedroom electric light, a sub-bedroom electric light, and a vestibule electric light, and the control information analyzed in the data tag is as follows:

controlled equipment	Living room electric lamp	Kitchen electric lamp	Main bedroom electric lamp	Electric lamp for sub-bedroom	Vestibule lamp
						Status value	1	0	1	0	1

After the data tag is sent to the hub control apparatus 300, the hub control apparatus 300 respectively controls the current state value of each apparatus by analyzing the read data format, thereby generating an action command. Taking the above home electric light system as an example, the control information can be correspondingly converted into the form as follows:

therefore, the center control apparatus 300 transmits the action instruction to the controlled apparatus 200 according to the apparatus address. For example, a turn-on instruction is sent to a living room electric lamp whose address is "xxx. × × × × × ×. xxx.01"; a turn-off command … … is sent to a kitchen electric lamp addressed to "xxx. × ×. xxx. 02" to complete the control of each controlled device 200.

As can be seen from the above technical solutions, the control terminal 100 can convert a specific control action into a transferable data tag by calling the device configuration list, and the central control device 300 can convert information in the data tag into a specific control instruction by calling the device control list, so as to act on the controlled device 200 to complete a corresponding control function.

Since the control terminal 100 may not establish a network connection directly with each controlled device 200, the device configuration list needs to be maintained independently by the control terminal 100. In order to maintain the device configuration list, as shown in fig. 3 and 4, the system further includes a cloud server 500, and the control terminal 100 is further configured to:

s1141: detecting the device configuration list in the control terminal 100;

s1142: if the device configuration list is stored in the control terminal 100, calling the device configuration list;

s1143: if the device configuration list is not stored in the control terminal 100, the device configuration list is obtained from the cloud server 500.

After each launch of the control application, the control application may check a list of device configurations in the memory of the control terminal 100. If the control terminal 100 stores the device configuration list, the configuration list is directly called for adjusting the content displayed in the control interface. If the device configuration list is not stored in the control terminal 100, the device configuration list may be obtained from the cloud server 500, and after the device configuration list is obtained, the content displayed in the control interface is adjusted according to the device configuration list.

In this embodiment, a control program of the control terminal 100 may manage a plurality of device configuration lists, such as an electric light system configuration list, a washing machine system configuration list, a refrigerator system configuration list, and the like, and a user may switch to different configuration lists at any time according to operation needs to display different control interfaces. Meanwhile, the control program can also have a memory function, namely the latest use configuration of the user is saved so as to be convenient for the user to call.

In addition, in order to prevent the user from losing data, a data backup function may be configured in the cloud server 500, the device configuration list is sent to the cloud server 500 for storage, and the cloud database is updated synchronously after each configuration change.

In some embodiments, the control terminal 100 is further configured to:

s1144: if the device configuration list is not stored in the cloud server 500, newly creating the device configuration list;

s1145: storing a plurality of the device configuration lists in a partitioned manner in the control terminal 100;

s1146: the device configuration list is sent to the cloud server 500.

The control terminal 100 generally cannot obtain the device configuration list from the cloud server 500 after the control application is started for the first time. At this time, the control terminal 100 can newly create a device configuration list. The newly created device list can be obtained by manually adding device information, such as name, model, etc., to the control program, and the control program can automatically generate a device configuration list according to the added device information and store the generated device list. The newly created device list may also be added to the device list by accessing the control terminal 100 to the network where the controlled device 200 is located, and searching for the controlled device 200 in the network.

Since a plurality of device configuration lists may be stored in the control terminal 100, the plurality of device configuration lists may also be stored in a memory of the control terminal 100 in a partitioned manner. The control terminal 100 may also send the device configuration list to the cloud server 500 while storing the device configuration list, and backup the generated device configuration list in the cloud server 500 to facilitate subsequent calls.

For example, based on the device control system provided in the above embodiment, in practical application, the control program APP may be installed in the control terminal 100. When the App is entered for the first time, the current cloud configuration is empty, and the user can create an equipment configuration list. And may partition a plurality of device configuration tables in the control terminal 100. After the user configuration is completed, the control terminal 100 may set the NFC component 401 to a Listening Mode (Listening Mode) and perform radio frequency interaction proximate to the radio frequency receiving device of the hub control apparatus 300. The central control apparatus 300 then parses the data tag, thereby controlling each controlled apparatus 200 according to the agreed rule.

In some embodiments, the analog manner of NFC component 401 may also be set according to a control application, i.e. the control application is configured with at least one application ID, and control terminal 100 is further configured to:

s1151: acquiring the application ID enabled correspondingly to the current control instruction;

s1152: setting an analog mode of the NFC component;

s1153: and setting the power supply mode of the NFC component according to the simulation mode.

A plurality of control applications capable of calling NFC components may be installed in the control terminal 100, and each control application may simulate a different NFC function, thereby implementing card simulation of the control terminal 100. The card simulation of the control terminal 100 does not depend on hardware and can be performed by software simulation. Therefore, after the control application is started, control terminal 100 may set the analog mode of NFC component 401 according to the application ID, and set the power supply mode of NFC component 401 according to the set analog mode. The simulation mode comprises host card simulation, eSE card simulation and eSIM card simulation, and the power supply mode comprises a low power mode and a high power mode.

In order to realize the transfer of the control instruction by the NFC component 401, an application ID, i.e., AID needs to be specified when developing an application. The AID may be registered in plural, and all applications installed in the control terminal 100 are registered in the routing table of the NFC system, and the AID is used as an index value to facilitate searching. The routing table may record control application information in the control terminal 100 according to a specific format, including an application type, a power supply method, an application ID, and the like. For example, the information registered to the routing table by AID is as shown in the following table:

Route

Power

AID

in the table, Route may indicate to which application type the application belongs, and different application types may have different NFC card emulation modes. In this embodiment, the NFC card simulation method includes the following three types: a host-based card emulation application, an eSIM-based card emulation, an eSE-based card emulation. Wherein, except for the host card-based simulation application, the remaining two types need hardware cooperation. Route routing information that can be defined in the routing table is: "00" represents host-based card emulation; "01" represents an eSE-based card simulation; "02" represents an eSIM-based card emulation.

Power represents the Power mode supported by the card emulation. In this embodiment, the power supply mode may also include the following three types: Low-Power (Low electric mode), High-Power (High electric mode), No-Power (No electric mode). Obviously, in order to be able to transmit the data tag, the card emulation mode of the NFC component 401 in this embodiment may only support the High-Power mode and the Low-Power mode, and does not support the No-Power mode.

The AID is a marker character string that the application needs to be registered into the system at installation time, and may be represented by a 16-system number, and the length is not fixed, for example, the AID of a certain control application may be represented as "B06937896756002478", and accordingly, the registration information of the control application in the routing table may be represented as:

Route	Power	AID
			00	High-Power	B06937896756002478

an analog mode and a power supply mode meeting the current data transmission requirements can be set through the application ID, so that the card analog function of the NFC component 401 can be realized according to the set analog mode and the power supply mode, and the requirements of various equipment control scenes are met.

In some embodiments of the present application, in order to implement the data tag being sent to the hub control device 300, after generating the data tag, the control terminal 100 is further configured to:

s121: setting the NFC component 401 to a listening mode;

s122: generating a response instruction after monitoring a response triggered by the radio frequency receiving device;

s123: and sending the data label in a data callback mode according to the response instruction.

After the control terminal 100 generates the data tag, the control terminal 100 may automatically set the NFC component 401 to a Listening (Listening) mode, so that it may be listened whether the NFC component 401 is close to the rf receiving device of the hub control device 300 within a certain time. If the NFC component 401 is close to the identification area of the radio frequency receiving device, the NFC component 401 may detect an identification response, and therefore after the radio frequency has a response, the control terminal 100 may feed back the simulated data tag to the Reader card reading end of the radio frequency receiving device, thereby completing data transfer.

For example, NFC component 401 may include a separate Controller, i.e., NFC Controller, which may pass the received instructions up to the upper control application through the NCI channel. The control application may expose the compiled front-end application to the user. The control application may expose the Host Apdu Service of Google and duplicate the process Command Apdu method, so as to return the configuration data to be fed back by using the process Command Apdu method, and send the configuration data to the radio frequency receiving device of the central control device 300 through the NCI channel and the NFC Controller, thereby completing the final data interaction.

As can be seen from the above technical solutions, when the NFC-based device control system provided in the above embodiments executes device control, the control terminal 100 may generate a data tag in response to a control action input by a user, and continuously monitor a response of the NFC component 401, and after the NFC component 401 has a response, directly send the data tag to the hub control device 300 through the NFC component 401. The central control device 300 may parse the received data tag to obtain control information, and distribute the control information to the corresponding controlled device 200 in a unified manner, so as to implement control over the controlled device 200. The system can physically prevent the transmitted control information from being falsified through near field communication, thereby being suitable for the application field with higher safety requirements.

It should be noted that in the above embodiment, the data tag is parsed by the central control apparatus 300, and after obtaining the control information, the control information is distributed to the controlled apparatus 200. In some embodiments, the controlled device 200 may directly complete data transmission with the control terminal 100 through the NFC component 401, that is, the controlled device 200 may be provided with a radio frequency receiving device, so that the configuration information of the controlled device 200 is edited in advance at the mobile terminal, and then the edited configuration is transmitted to the controlled device 200 by approaching to the radio frequency identification area of the controlled device 200 through radio frequency interaction.

Since the way of the NFC component to transfer data can be bidirectional, and in many application scenarios, multiple repeated interactions are required between the control terminal 100 and the controlled device 200 to be able to implement the corresponding functions. Therefore, through the NFC component, it is possible to control the controlled device 200 using the control terminal 100, and also to reversely control the control terminal 100 using the controlled device 200.

In some embodiments of the present application, there is further provided an NFC-based device control system, as shown in fig. 5, the device control system including: a control terminal 100 and a controlled device 200;

NFC components

401 and 402 are disposed on the control terminal 100 and the controlled device 200. The

NFC components

401 and 402 on the controlling terminal 100 and the controlled device 200 may have the same function, and may respectively serve as a transmitting end and a receiving end when data is transferred, and support bidirectional transfer. For example, when the control terminal 100 transmits data to the controlled device 200, the NFC component 401 in the control terminal 100 serves as a transmitting end, and the NFC component 402 in the controlled device 200 serves as a receiving end; when the controlled device 200 feeds back data to the control terminal 100, the NFC component 402 in the controlled device 200 serves as a transmitting end, and the NFC component 401 in the control terminal 100 serves as a receiving end.

As shown in fig. 6, in the device control process, the control terminal 100 is configured to execute the following program steps:

s310: after monitoring that the NFC component responds, acquiring state information of the controlled device 200 through the NFC component;

s320: and generating a control instruction according to the state information.

Control terminal 100 may detect whether other NFC component 402 is proximate to the identification area in real time through NFC component 401, and may generate a response in NFC component 401 when proximity of other NFC component 402 to the identification area is detected. The control terminal 100 may trigger to acquire the state information of the controlled device 200 according to the generated response, that is, the controlled device 200 may send the state information through the NFC component 402 therein, and the control terminal 100 reads the information carried by the NFC component 402 in the proximate controlled device 200 through the NFC component 401. After acquiring the state information, the control terminal 100 may generate a control instruction with respect to the acquired state information.

The state information is one of information used to represent a current state of the controlled device 200, and the controlled device 200 may present different states according to different application scenarios or different device types, so that different state information may be read by the NFC component 401.

As can be seen from the foregoing technical solutions, the NFC-based device control system provided in the foregoing embodiment may acquire, through the control terminal 100, the state information from the controlled device 200 after the NFC component 401 monitors that the NFC component 401 has a response, and generate the control instruction according to the acquired state information, where the generated control instruction may be sent to the controlled device 200 through the NFC component 401, or may be directly executed by the control terminal 100, so as to set the control terminal 100, and implement control on the controlled device 200 after the setting is completed. The system can obtain the state information of the controlled device 200 through the NFC component 401, thereby quickly completing the setting of the controlled device 200 or the control terminal 100, and simplifying the interaction process between the control terminal 100 and the controlled device 200.

The above-described device control process is explained below with reference to a specific example.

For example, the controlled device 200 may be a display device such as a smart television or a projector, and the control terminal 100 is a mobile phone, in order to better display the content displayed by the mobile phone, in some cases, it is necessary to project the small screen content of the mobile phone into the large screen of the display device, that is, to complete the screen projection operation between the control terminal 100 and the display device. Wherein the display device may include a display, an NFC component, a communicator, and a controller. The display may be configured to display a user interface and a screen projection interface. The NFC component is used to transfer status information and control commands between the control terminal 100 and the display device. The communicator may be operable to communicate screen projection data. The controller is further configured to perform the following program steps:

s410: sending the state information to the control terminal through the NFC component;

s420: receiving a control instruction fed back by the control terminal;

s430: responding to the control instruction, and acquiring screen projection data through the communicator;

s440: and controlling the display to display a screen projection picture corresponding to the screen projection data.

The state information is used for indicating the state of the current screen projection setting program, the specific content of the state information can be a screen projection starting state and a screen projection closing state, and the setting can be completed by executing specific operation. For example, when the user turns on the screen projection switch, the state of the screen projection setting program may be set to the screen projection starting state, and at this time, the state information whose content is the screen projection starting state is generated.

As shown in fig. 7, after generating the state information, the display device may transmit the state information through the NFC component. Specifically, when the user brings the control terminal 100 close to the NFC component on the display device, the near field communication is implemented, and the state information is automatically sent to the control terminal 100.

While sending the state information to the control terminal 100, the display device may also receive a control instruction fed back by the control terminal 100 through the NFC component, where the control instruction is generated when the control terminal 100 determines that the state information is in the screen-on state. The control instruction may control the display device to complete subsequent settings related to screen projection, so that the display device can perform control operation on the communicator after receiving the control instruction, so that the display device can receive screen projection data at the control terminal 100 through the communicator. Obviously, in order to be able to transmit the projection data, the communicator needs to have a certain communication bandwidth and communication stability, for example, the communicator may be connected to a regional wireless network.

After the screen projection data are obtained through the communicator, the controller can also perform processing such as analysis and transcoding on the received screen projection data, and therefore screen projection pictures can be displayed on the displayer. The screen projection screen is different according to the data transmitted by the control terminal 100. For example, the screen shot may be a specific media asset picture played in the control terminal 100, such as a movie picture, a tv series picture, etc.; or may be a specific display screen currently displayed in the control terminal 100.

As can be seen from the above technical solutions, the display device provided in the above embodiments includes: a display, an NFC component, a communicator, and a controller. The controller can send state information to the control terminal through the NFC component, acquire screen projection data through the communicator after receiving the control instruction, and control the display to display a screen projection picture corresponding to the screen projection data to finish screen projection. The display equipment can automatically set screen projection related programs through interaction among the NFC components, so that control information transmitted is prevented from being falsified physically, and the display equipment is suitable for application fields with high safety requirements.

Matching with the display device, some embodiments of the present application further provide a control terminal 100, where the control terminal 100 establishes a network connection with the display device, and is used to perform screen projection control on the display device; NFC components are provided on both the control terminal 100 and the display device.

The control terminal is configured to perform the following program steps:

s510: acquiring a screen projection instruction for starting screen projection;

s520: responding to the screen projection instruction, and monitoring the NFC component;

s530: if the NFC component responds, acquiring the state information of the display equipment through the NFC component;

s540: generating a control instruction according to the state information;

s550: and sending the control instruction to the display equipment.

For the screen projection operation, as shown in fig. 8, the control terminal 100 may listen to the response of the NFC component after starting screen projection, and acquire the state information of the display device through the NFC component when there is a response. The control terminal 100 determines whether the status information is in the screen-on state. And if the state information is the screen projection starting state, generating a control instruction according to the state information, and finally sending the generated control instruction to the display equipment.

Obviously, in order to complete the screen projection function configuration between the display device and the control terminal 100, the control terminal 100 may carry the screen projection configuration parameters in the feedback control instruction, and the display device may analyze the screen projection configuration parameters in the control instruction after receiving the control instruction; and configuring the analyzed screen projection configuration parameters to the communicator. For example, network connection parameters such as a port and a protocol of the communicator in the network are configured, so that the display device can acquire screen projection data in the control terminal 100 through the communicator.

In some embodiments, in order to send the state information to the control terminal 100, a screen projection program of the display device may be first set, and the state information is set to start a screen projection state, specifically, the step of sending the state information to the control terminal through the NFC component further includes:

s411: acquiring a setting instruction which is input by a user and used for setting a screen projection state;

s412: responding to the setting instruction, and setting the screen projection state as a screen projection starting state;

s413: generating the state information with the content of starting screen projection state;

s414: and monitoring the NFC component, and if the NFC component responds, sending the state information through the NFC component.

The display equipment can complete screen projection state setting under the interactive operation of a user. Along with the interactive operation of the user, the controller can acquire a setting instruction which is input by the user and used for setting the screen projection state, respond to the setting instruction, set the screen projection state of the display device to the screen projection starting state, and simultaneously, the controller can generate state information of which the content is the screen projection starting state according to the setting result.

After generating the state information, the controller may change the operation mode of the NFC component to a listening mode, thereby listening for a response of the NFC component. Namely, setting the NFC component to be in a monitoring mode; if the NFC sensing signal on the control terminal 100 is within the sensing range of the NFC component, a response is generated, so that near field communication is established to send the state information to the control terminal through the NFC component.

In some embodiments, as shown in fig. 9, while the NFC component sends the status information to the control terminal, an address of the communicator in the current network may also be acquired; thereby sending connection information to the control terminal via the NFC component, the connection information including an address of the communicator in a current network. The connection information may be read by the control terminal 100, and a control instruction related to establishing the network connection may be generated according to the connection information, thereby completing setting of the display device and/or the control terminal 100 for establishing the network connection.

Accordingly, the control terminal 100 may generate pairing information according to the connection information after receiving the connection information, and transmit the pairing information to the display device. And the display equipment acquires the pairing information sent by the control terminal through the communicator, so that a screen projection data channel is connected between the communicator and the control terminal according to the pairing information. Wherein the pairing information includes an address of the control terminal in a current network.

For example, a wifi display service is turned on in the display device, then a wifi display service of a handset is turned on, and a wifi display signal of the display device is searched, so that a pairing connection is performed after the wifi display signal is searched. After the wifi display service of the display device is turned on, the running state of the display device is changed, so that after the function of the NFC component 402 is turned on, the NFC component 402 may send the state information including "the current wifi display service is turned on".

After the state information of 'the current wifi display service is started' is read by the mobile phone through the built-in NFC component 401, it can be determined that the screen projection function of the mobile phone needs to be executed at present, so that a control instruction for controlling the screen projection operation can be generated according to the read state information, and the picture content displayed on the mobile phone is sent to the display device for display. As can be seen, in the screen projection process, the control terminal 100 may read the state information of the controlled device 200 through the NFC component 401, so as to generate the control instruction according to the state information. The generated control instruction can act on the controlled device 200 and the control terminal 100 respectively, so as to further adjust the states of the controlled device 200 and the control terminal 100, and complete multiple interactions along with the adjustment of the states, so as to finally realize the front function operation of screen projection.

In some embodiments, in order to obtain the state information of the display device, a control application is installed on the control terminal 100, and the control terminal 100 may obtain a screen-casting instruction input by a user for starting the control application; and setting the NFC component to a listening mode in response to the open instruction.

The user can open the control application at the control terminal 100 by performing a series of actions, that is, opening a specific App to automatically generate a screen-throwing instruction. The control terminal 100 may generate a screen projection instruction for starting the control application according to a series of control actions input by the user, and start and run the control application by executing the screen projection instruction. Meanwhile, the control terminal 100 also sets the NFC component 401 to a listening mode in response to the screen-projecting instruction, so as to detect whether the NFC component 401 is close to other NFC components 402 in real time to trigger a response.

Therefore, in this embodiment, when a user executes some functions requiring multiple operations, subsequent steps can be completed through interaction between the

NFC components

401 and 402 after a specific control application is opened, thereby greatly simplifying an interaction process. For example, when the screen projection operation of the mobile phone on the display device is realized, the user only needs to open the wifi display service in the display device first, then open the specific App at the mobile phone end, and the screen projection can be realized by pressing the mobile phone close to the tag position of the NFC component 402 identification area of the display device, without repeating the setting steps on the display device and the mobile phone for multiple times.

In some embodiments of the present application, the control instruction may include a first instruction applied to the display device and a second instruction applied to the control terminal 100. Also, as shown in fig. 10, the control terminal 100 is further configured to execute the following program steps:

s541: if the control instruction is the first instruction, sending the first instruction to the controlled device 200 through the NFC component;

s542: and if the control instruction is the second instruction, executing the second instruction.

After generating the control instruction, the control terminal 100 may perform different control functions according to the type of the control instruction. The first instruction may be sent to the display device in the form of a data tag according to the device control method in the above embodiment, so that the display device may execute the first instruction to implement the control function. The second instruction is directly executed by the control terminal 100 itself so as to automatically set the state in the control terminal 100, thereby adapting to the current state of the display device and implementing the corresponding function.

For example, after reading the status information of "the current wifi display service is turned on", the mobile phone may generate a control instruction for controlling the pairing process according to the read status information. The control instruction comprises a second instruction used for controlling the mobile phone end to display a picture for prompting the user to enable the mobile phone to be close to the display equipment matching label. The pairing tag is a Wifi address written in advance of the display device, and can be fixed on the surface of the display device for the mobile terminal device to read. The pairing tag may be a tag card conforming to 13.56MHZ, in which the Mic address of the wifi display P2P is written, which displays the device as the Sink side. When the App at the mobile phone end is close to the matched tag of the display equipment, the Mic address in the tag can be identified, so that after the Mic address is obtained, connection is completed through the Source end of the mobile phone and the Sink end of the display equipment.

As can be seen from the above technical solutions, the display device provided in the above embodiments includes: a display, an NFC component, a communicator, and a controller. The controller may send the state information to the control terminal 100 through the NFC component, acquire the screen projection data through the communicator after receiving the control instruction, and control the display to display a screen projection picture corresponding to the screen projection data, thereby completing screen projection. The display equipment can automatically set screen projection related programs through interaction among the NFC components.

Meanwhile, the control terminal 100 provided in the above embodiment may obtain the state information of the display device by monitoring the NFC component after performing the screen-projecting front-end operation, and generate the control instruction according to the state information to control to complete the screen-projecting operation between the control terminal 100 and the display device. The control terminal 100 can automatically complete control over the control terminal and the display device by utilizing interaction between the NFC components, and physically prevents transmitted control information from being tampered, so that the method is suitable for application fields with high safety requirements.

The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.

Claims

1. A display device, comprising:

a display;

an NFC component configured to communicate state information and control instructions;

the communicator is configured to be connected with the control terminal so as to acquire screen projection data;

a controller configured to:

2. The display device according to claim 1, wherein in the step of acquiring the screen projection data by the communicator, the controller is further configured to:

analyzing the screen projection configuration parameters in the control instruction;

and configuring the screen projection configuration parameters to the communicator.

3. The display device of claim 1, wherein in the step of sending the status information to the control terminal via the NFC component, the controller is further configured to:

acquiring a setting instruction which is input by a user and used for setting a screen projection state;

responding to the setting instruction, and setting the screen projection state as a screen projection starting state;

generating the state information with the content of starting screen projection state;

and monitoring the NFC component, and if the NFC component responds, sending the state information through the NFC component.

4. The display device according to claim 3, wherein after the step of generating the status information that the content is the on-screen state, the controller is further configured to:

setting the NFC component to a monitoring mode;

and if the NFC sensing signal on the control terminal exists in the sensing range of the NFC component, generating a response.

5. The display device of claim 1, wherein in the step of sending the status information to the control terminal via the NFC component, the controller is further configured to:

acquiring the address of the communicator in the current network;

and sending connection information to the control terminal through the NFC component, wherein the connection information comprises the address of the communicator in the current network.

6. The display device of claim 5, wherein the controller is further configured to:

acquiring pairing information sent by the control terminal through the communicator, wherein the pairing information comprises an address of the control terminal in a current network;

and connecting a screen projection data channel between the communicator and the control terminal according to the pairing information.

7. The control terminal is characterized in that network connection is established with display equipment and used for carrying out screen projection control on the display equipment; NFC components are arranged on the control terminal and the display equipment; the control terminal is configured to:

acquiring a screen projection instruction for starting screen projection;

generating a control instruction according to the state information;

and sending the control instruction to the display equipment.

8. The control terminal of claim 7, wherein the control instructions include a first instruction applied to the display device and a second instruction applied to the control terminal; the control terminal is further configured to:

if the control instruction is the first instruction, the first instruction is sent to the display equipment through the NFC component;

and if the control instruction is the second instruction, executing the second instruction.

9. The control terminal of claim 7, wherein the screen-shot instruction is automatically generated by the control terminal upon launching a control application.

10. An NFC-based device control system, comprising: the control system comprises a control terminal, controlled equipment and central control equipment; the control terminal is provided with an NFC component, and the central control equipment is provided with a radio frequency receiving device; the central control equipment establishes communication connection with the controlled equipment;

11. An NFC-based device control system, comprising: the system comprises a control terminal and controlled equipment; NFC components are arranged on the control terminal and the controlled equipment;