CN113284331B - Projection interactive system - Google Patents

Projection interactive system Download PDF

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Publication number
CN113284331B
CN113284331B CN202110282356.9A CN202110282356A CN113284331B CN 113284331 B CN113284331 B CN 113284331B CN 202110282356 A CN202110282356 A CN 202110282356A CN 113284331 B CN113284331 B CN 113284331B
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projector
broadcast
remote controller
chip
main control
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CN113284331A (en
Inventor
李志�
金凌琳
袁鹏飞
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Dangbei Network Technology Co ltd
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Dangbei Network Technology Co ltd
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0084—Formats for payload data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Details Of Television Systems (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The application discloses projection interaction system, projection interaction system's interactive process includes: the remote controller sends a Bluetooth pairing request to the projector, and a Bluetooth module of the projector completes Bluetooth pairing connection with the remote controller based on the Bluetooth pairing request; the Bluetooth module of the projector transmits the pre-stored custom attribute to the Bluetooth matched and connected remote controller through the GATT protocol; the remote controller receives the custom attribute and stores the chip manufacturer logo in the custom attribute in the GATT affair of the remote controller; the remote controller extracts the chip manufacturer identification in the GATT affair, synthesizes the startup broadcast according to the chip manufacturer identification, and broadcasts the startup broadcast as broadcast information; when the Bluetooth module of the projector receives the broadcast information, the start-up key in the key board is triggered when the main control chip successfully analyzes the broadcast information. The application improves the interactive compatibility of the remote controller relative to various projectors.

Description

Projection interactive system
Technical Field
The application relates to the technical field of intelligent control of projectors, in particular to a projection interaction system.
Background
The conventional projector and the remote controller are in Bluetooth interaction, manufacturers of different Bluetooth module chips have different starting broadcast formats, the Bluetooth module of the projector and the Bluetooth chip of the remote controller are required to be the same manufacturer, one type of remote controller can only be suitable for controlling the projector of the same Bluetooth chip manufacturer, and the remote controller has poor interaction compatibility with the projector.
Disclosure of Invention
The embodiment of the application mainly aims to provide a projection interaction system, and aims to solve the technical problem that the interaction compatibility of a remote controller relative to a projector is poor.
In order to achieve the above object, an embodiment of the present application provides a projection interaction system, which includes a projector and a remote controller, where the projector includes a main control chip, a bluetooth module, and a keypad, where the bluetooth module and the keypad are both in communication connection with the main control chip, the bluetooth module includes at least one wakeup pin, and the wakeup pin is electrically connected to a trigger pin of a power-on key in the keypad; the remote controller has a low-power Bluetooth function; the interaction process of the projection interaction system comprises the following steps:
when the projector is in a starting pairing stage, the remote controller sends a Bluetooth pairing request to the projector so that a Bluetooth module of the projector can complete Bluetooth pairing connection with the remote controller based on the Bluetooth pairing request;
the Bluetooth module of the projector transmits a pre-stored custom attribute to the remote controller connected in a Bluetooth pairing mode through a GATT protocol, wherein the custom attribute comprises a chip manufacturer identifier of the Bluetooth module of the projector;
the remote controller receives the custom attribute and stores the chip manufacturer identity in the custom attribute in a GATT transaction of the remote controller;
when the remote controller detects that a start-up key of the remote controller is triggered, the remote controller extracts the chip manufacturer identification in the GATT affair, and the remote controller synthesizes a start-up broadcast according to the chip manufacturer identification and takes the start-up broadcast as broadcast information to be broadcast outwards;
when the Bluetooth module of the projector receives the broadcast information, the main control chip of the projector analyzes the broadcast information, and when the main control chip successfully analyzes the broadcast information, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the triggering pin so as to trigger the power-on key in the key board.
Optionally, the synthesizing, by the remote controller, the startup broadcast according to the chip vendor identifier, and the broadcasting, which is the startup broadcast as the broadcast information, specifically includes:
the remote controller judges whether the extracted chip manufacturer identification is consistent with the existing starting broadcast type of the projector;
if the chip manufacturer identification is inconsistent with the existing starting broadcast type, the main control chip synthesizes a new starting broadcast according to the chip manufacturer identification, and a Bluetooth module of the projector takes the new starting broadcast as broadcast information to be broadcast outwards;
and if the chip manufacturer identification is consistent with the existing startup broadcast type, the Bluetooth module of the projector takes the existing startup broadcast of the projector as the broadcast information to be broadcast outwards.
Optionally, before the main control chip of the projector controls the wake-up pin of the bluetooth module to output a pull-down low level signal to the trigger pin, the projector is further configured to:
when the main control chip of the projector successfully analyzes the broadcast information, extracting a remote control MAC address in the broadcast information;
the master control chip of the projector compares the remote control MAC address with a pre-stored local MAC address, and if the local MAC address is matched with the remote control MAC address, the master control chip of the projector acquires and identifies a broadcast key instruction in the broadcast information;
if the broadcast key instruction is a preset startup instruction, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger a startup key in the key board.
Optionally, before the remote controller detects that a power-on key of the remote controller is triggered, the projector is further configured to:
when the projector is in a standby stage, the main control chip of the projector controls the Bluetooth module to enter a low power consumption mode, and the Bluetooth module only receives broadcast information of an external Bluetooth remote controller in the low power consumption mode;
the method comprises the steps that a main control chip of the projector detects whether a local awakening file prestored in the projector is empty or not, and if the local awakening file is not empty, the main control chip obtains a local MAC address in the local awakening file, wherein the local MAC address is the MAC address of a remote controller successfully matched with a Bluetooth module of the projector; at most one local MAC address is stored in a local wake-up file of the projector.
Optionally, the analyzing, by the main control chip of the projector, the broadcast information specifically includes:
the main control chip of the projector analyzes the broadcast information and extracts the broadcast chip manufacturer information of the Bluetooth manufacturer field in the broadcast information; the message content of the broadcast information is a message length field, a Bluetooth manufacturer field, an MAC address field and a key instruction field in sequence;
comparing the manufacturer information of the broadcasting chip with the local chip manufacturer information of the Bluetooth module prestored in the projector;
if the manufacturer information of the broadcast chip is not matched with the manufacturer information of the local chip, the main control chip fails to analyze the broadcast information, and discards the broadcast information;
if the manufacturer information of the broadcast chip is matched with the manufacturer information of the local chip, the main control chip successfully analyzes the broadcast information and extracts the remote control MAC address in the broadcast information.
Optionally, after the main control chip of the projector detects whether a local wake-up file pre-stored in the projector is empty, the projector is further configured to:
if the local wake-up file is empty, when a Bluetooth module of the projector receives the broadcast information, the main control chip judges whether the signal intensity of the broadcast information is greater than a preset intensity threshold value;
if the signal intensity of the broadcast information is greater than a preset intensity threshold value, when the broadcast chip manufacturer information is matched with the local chip manufacturer information in the broadcast information, the master control chip stores a remote control MAC address in the broadcast information into a local wake-up file to be used as a local MAC address, and Bluetooth pairing between a Bluetooth module of the projector and an external Bluetooth remote controller sending the broadcast information is achieved;
a main control chip of the projector acquires and identifies a broadcast key instruction in the broadcast information; if the broadcast key instruction is a preset startup instruction, the main control chip of the projector controls the wakeup pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger a startup key in the key board.
Optionally, the projector is further configured to:
after the signal intensity of the broadcast information is determined to be greater than a preset intensity threshold value, a main control chip of the projector detects whether a preset key combination event is triggered by a key board;
if the preset key combination triggering event is not detected, the main control chip does not respond;
if the preset key combination triggering event is detected, the main control chip further compares the broadcast chip manufacturer information with the local chip manufacturer information in the broadcast information;
when the manufacturer information of the broadcasting chip in the broadcasting information is matched with the manufacturer information of the local chip, the main control chip stores the remote control MAC address in the broadcasting information into a local wake-up file to be used as a local MAC address.
Optionally, after the step of acquiring and identifying the broadcast key instruction in the broadcast information by the main control chip of the projector, the projector is further configured to:
and if the broadcast key instruction is not a preset starting instruction, discarding the broadcast information by a main control chip of the projector.
Optionally, the projector is further configured to:
after the projector enters the standby state and the start-up key in the key board is triggered by the main control chip of the projector, the main control chip controls the projector to exit the standby state and enter the start-up state, starts the WIFI function and the voice control function of the projector, and does not respond to the broadcast information of the external Bluetooth remote controller.
Optionally, the projector is further configured to:
after the projector enters the startup state, after a startup key in a startup key board or a projector Bluetooth module of a main control chip of the projector receives a startup trigger instruction sent by an external Bluetooth remote controller, the main control chip controls the projector to enter the standby state, and the WIFI function and the voice control function of the projector are turned off.
This application acquires the custom attribute through the mode that the remote controller bluetooth is mated and projector, contains the chip manufacturer's sign of projector bluetooth module in the custom attribute, and then the remote controller keeps the chip manufacturer's sign in the custom attribute in the GATT affair of remote controller to the start key that detects the remote controller at the remote controller is triggered, and the remote controller draws in the GATT affair chip manufacturer sign, remote controller basis the synthetic start broadcast of chip manufacturer sign, and will the start broadcast is outwards broadcast as the broadcast information, and then when the bluetooth module of projector received when the broadcast information, the main control chip of projector analyzes the broadcast information, when the main control chip analysis broadcast information succeeds, the awakening stitch of the main control chip control bluetooth module of projector to trigger stitch output a low level signal that drops down to trigger the key in the keypad, thereby the remote controller passes through the very little GATT agreement of transmission data volume, has realized the control of the bluetooth module of remote controller compatibility a plurality of bluetooth chip manufacturers, and the mutual compatibility of projector of remote controller multiple manufacturer model is showing and is improving.
Drawings
FIG. 1 is a schematic diagram illustrating an interaction process between a projector and a remote controller in an embodiment of a projection interaction system according to the present application;
FIG. 2 is a block diagram of a frame structure of an embodiment of a projection interactive system of the present application;
FIG. 3 is a diagram illustrating a data structure of an embodiment of a GATT transaction in the projection interactive system of the present application;
fig. 4a is a schematic diagram of a message format of Mediatek startup broadcast in the projection interactive system of the present application;
fig. 4b is a schematic diagram of a message format of a Broadcom startup broadcast in the projection interactive system of the present application;
fig. 4c is a schematic diagram illustrating a format of a message of a Realtek startup broadcast in the projection interactive system of the present application.
The implementation, functional features and advantages of the objectives of the present application will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", "part", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning by themselves. Thus, "module", "component" or "unit" may be used mixedly.
The invention provides a projection interaction system which comprises a projector and a remote controller, wherein the projector comprises a main control chip, a memory, a Bluetooth module and a key board, the memory, the Bluetooth module and the key board are all in communication connection with the main control chip, a computer program is stored in the memory, the Bluetooth module comprises at least one awakening pin, and the awakening pin is electrically connected with a trigger pin of a power-on key in the key board; the remote controller has a low-power Bluetooth function; bluetooth module and outside Bluetooth remote controller pass through Bluetooth protocol communication, but Bluetooth module and Bluetooth remote controller Bluetooth 4.0BLE communication protocol, bluetooth 4.0 are the Bluetooth technology of a trinity, fuses traditional Bluetooth, bluetooth low energy and high-speed Bluetooth technology together, and the Bluetooth of this three specification also can the exclusive use. In the application, the technology mainly applied is Bluetooth 4.0 low-power consumption Bluetooth, and the Bluetooth low-power consumption does not need to occupy too much bandwidth and has extremely low power consumption. Bluetooth 4.0BLE is suitable for a remote controller which is a Bluetooth device with long time and small data transmission quantity.
The Bluetooth module, as a microprocessor, communicates with a Bluetooth external device (e.g., a remote controller) through a Bluetooth Protocol, where the Bluetooth module and the Bluetooth remote controller may use Bluetooth version 4.0, and the Bluetooth version 4.0 supports Low Energy (BLE) specification, which mainly refers to two core protocols, namely ATT (Attribute Protocol) and GATT (Generic Attribute Protocol). The Bluetooth remote controller can send out a specific broadcast message in an unconnected state, the Bluetooth module of the projector analyzes the broadcast message into a successfully-analyzed starting broadcast, and the Bluetooth module of the projector makes a pull-down wake _ h pin (trigger pin) action to achieve the purpose of starting.
In the present application, bluetooth Low Energy (BLE) connections are built on the GATT (Generic Attribute Profile) protocol. The GATT is a general specification for sending and receiving short data segments, referred to as attributes (attributes), over a bluetooth connection. In order to be compatible with the starting broadcast formats of a plurality of Bluetooth module chip manufacturers on one remote controller, custom attributes are transmitted between the Bluetooth remote controller and the Bluetooth module of the projector through a GATT protocol, the custom attributes can distinguish different Bluetooth module chip manufacturers, the remote controller stores the custom attributes communicated with the projector, and when the remote controller is disconnected with the projector and needs to send the starting broadcast, corresponding starting broadcast is sent according to the Bluetooth module chip manufacturer represented by the custom attribute identification value by judging the custom attribute identification value, so that the remote controller is compatible with a plurality of starting broadcast formats.
In an embodiment of the projection interactive system, an interactive process of the projection interactive system is as follows:
step A10, when the projector is in a starting pairing stage, the remote controller sends a Bluetooth pairing request to the projector so that a Bluetooth module of the projector completes Bluetooth pairing connection with the remote controller based on the Bluetooth pairing request;
when the projector is in a starting state and the Bluetooth connection with the remote controller is not established, the Bluetooth module of the projector can detect a Bluetooth pairing request sent from the outside, and if a user needs to establish the Bluetooth connection between the remote controller and the projector, the user can trigger the Bluetooth pairing function of the remote controller to control the remote controller to send the Bluetooth pairing request to the projector. After the Bluetooth module of the projector receives the Bluetooth pairing request sent by the remote controller, the Bluetooth module completes Bluetooth pairing connection with the remote controller based on the Bluetooth pairing request.
Step A20, the Bluetooth module of the projector transmits a pre-stored custom attribute to the remote controller in Bluetooth pairing connection through a GATT protocol, wherein the custom attribute comprises a chip manufacturer identifier of the Bluetooth module of the projector;
after the Bluetooth module of the projector and the remote controller finish Bluetooth pairing, the Bluetooth module of the projector transmits a custom attribute to the remote controller connected with the Bluetooth in a pairing way through a GATT protocol, and the custom attribute comprises a chip manufacturer identifier of the Bluetooth module of the projector.
Different bluetooth module chip manufacturers have different boot broadcast formats, for example, the boot broadcast formats of three bluetooth chip manufacturers, namely Mediatek, broadcom and Realtek, are shown in a specific message format.
For example, fig. 4a shows a message format of Mediatek boot broadcast, fig. 4b shows a message format of Broadcom boot broadcast, fig. 4c shows a message format of Realtek boot broadcast, and the difference of the message formats of the three bluetooth chip manufacturers' boot broadcasts is mainly in Vendor Information Field (Vendor Information Field). The chip vendor identification with the self-defined attribute may correspond to a vendor information field added to the message format of the power-on broadcast.
Step A30, the remote controller receives the custom attribute and stores the chip manufacturer logo in the custom attribute in a GATT transaction of the remote controller;
in order that the remote controller can simultaneously support various Bluetooth startup broadcast formats (three startup broadcast formats), the remote controller and the Bluetooth module of the projector transmit custom attributes through a GATT protocol, and the projector Bluetooth module informs the remote controller of which Bluetooth module chip the projector uses when the projector Bluetooth module is connected with the remote controller through communication between the remote controller and the projector Bluetooth module.
After the remote controller receives the custom attributes, the custom attributes are kept in the memory of the remote controller in the form of a Profile (configuration file) set, and the GATT transaction is established on nested Profiles, services and Characteristics.
Profile is not actually present on BLE (Bluetooth low energy) peripherals, it is simply a set of services predefined by Bluetooth SIG (Bluetooth Special Interest Group) or peripheral designers.
Service is an independent logical item that divides data into pieces, which contain one or more charateristics. Each Service has a Unique UUID (universal Unique Identifier).
The lowest boundary of Characteriodic in the GATT transaction is Characteriodic, which is the smallest logical data unit, and of course it may contain a set of associated data, such as the X/Y/Z triaxial values of the accelerometer. Similar to Service, each Characteriotic is uniquely identified with a UUID of 16 bits or 128 bits. The official standard charateristic defined by Bluetooth SIG can be used in this application, and the official charateristic defined by Bluetooth SIG can ensure that the software and hardware of BLE can understand each other. Of course, the Characteriotic can be customized, and the software of the projector and the remote controller is synchronously and correspondingly designed, so that the projector and the remote controller can mutually understand the Characteriotic content. Specific logical relationships of Profile, service and Characteriodic, as in FIG. 2, a Profile may include multiple services and a Service may include multiple Characteriodic.
Step A40, when the remote controller detects that a start key of the remote controller is triggered, the remote controller extracts the chip manufacturer identification in the GATT affair, synthesizes start-up broadcast according to the chip manufacturer identification, and broadcasts the start-up broadcast as broadcast information;
the method comprises the steps that a startup key is arranged in an operation area of a remote controller and used for awakening a projector in a standby state or a dormant state, after a user triggers the startup key of the remote controller, the remote controller extracts a chip manufacturer identifier in a GATT affair, and the remote controller judges whether the extracted chip manufacturer identifier is consistent with the existing startup broadcast type of the projector or not; if the chip manufacturer identification is inconsistent with the existing startup broadcast type, the startup broadcast sent by the remote controller before is not adapted to the chip manufacturer identification, and the remote controller is paired with a projector of a Bluetooth module of a new Bluetooth chip manufacturer, the remote controller synthesizes a new startup broadcast according to the chip manufacturer identification, and the remote controller broadcasts the new startup broadcast outwards as broadcast information; if the chip manufacturer identification is consistent with the existing startup broadcast type, the startup broadcast sent by the remote controller before is adapted to the chip manufacturer identification, and the existing startup broadcast of the remote controller is only required to be broadcast information.
Therefore, before the remote controller sends the broadcast information of the startup broadcast type, whether the chip manufacturer identification currently stored in the remote controller and the currently used startup broadcast are the same chip manufacturer is judged, the chip manufacturer identification currently stored is compared with the chip manufacturer identification field in the currently used startup broadcast, and the chip manufacturer identification currently stored is different from the chip manufacturer identification field in the currently used startup broadcast, so that the startup broadcast previously sent by the remote controller is not matched with the chip manufacturer identification; the currently stored chip manufacturer identification is the same as the chip manufacturer identification field in the currently used startup broadcast, which indicates that the startup broadcast sent by the remote controller before is adapted to the chip manufacturer identification; therefore, the starting broadcast sent by the remote controller is ensured to be adapted to the chip manufacturer of the projector needing to be controlled in a simple mode.
Step A50, when the Bluetooth module of the projector receives the broadcast information, the main control chip of the projector analyzes the broadcast information, and when the main control chip successfully analyzes the broadcast information, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the triggering pin so as to trigger a power-on key in the keypad.
When the main control chip successfully analyzes the broadcast information, the main control chip controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger the power-on key in the key board, so that the same effect as that of outputting low level power for starting up by pressing the power-on key by the key board is achieved, and the awakening of the projector by the Bluetooth remote controller is achieved in a low-power Bluetooth communication mode.
In the embodiment, a custom attribute is obtained by a Bluetooth pairing mode of a remote controller and a projector, the custom attribute comprises a chip manufacturer identifier of a Bluetooth module of the projector, the chip manufacturer identifier in the custom attribute is stored in a GATT transaction of the remote controller by the remote controller, the remote controller extracts the chip manufacturer identifier in the GATT transaction when detecting that a start key of the remote controller is triggered, the remote controller synthesizes a start broadcast according to the chip manufacturer identifier and broadcasts the start broadcast outwards as broadcast information, then when the Bluetooth module of the projector receives the broadcast information, a main control chip of the projector analyzes the broadcast information, and when the main control chip analyzes the broadcast information successfully, the main control chip of the projector controls a wake-up pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger a start key in a keypad, so that the remote controller realizes the control of the remote controller compatible with the Bluetooth modules of a plurality of Bluetooth module manufacturers through the GATT protocol with a small data transmission amount, and the interactive compatibility of the remote controller with the projectors of various models is remarkably improved.
In addition, one implementation of storing the UUID in the GATT transaction is as follows:
service UUID: 0000fff000001000800000805f9b34fb
Characteristic UUID： 0000fff400001000800000805f9b34fb
Characteriotic is the smallest logical data unit that the UUID uses to acquire and set the type of turn-on broadcast
The Characteritic UUID address 0xfff4 holds data of 1 byte in length, an example of which is as follows:
0 denotes the Broadcom bluetooth module chip manufacturer;
1 denotes the Mediatek bluetooth module chip manufacturer;
2 denotes the Realtek bluetooth module chip manufacturer;
special attention is paid to: if the data set by the Charactericity UUID is >2, the data can be considered as 2 by the remote controller or the projector, and whether the existing startup broadcast type of the remote controller is consistent with the startup broadcast base stone required by the corresponding chip manufacturer identification can be judged by reading the Charactericity UUID every time.
Further, in another embodiment of the projection interaction system of the present invention, before the main control chip of the projector controls the wake-up pin of the bluetooth module to output a pull-down low-level signal to the trigger pin, the projector is further configured to:
b1, when a main control chip of the projector successfully analyzes the broadcast information, extracting a remote control MAC address in the broadcast information;
when the projector detects that the local awakening file is not empty, after the local MAC address in the local awakening file is acquired, and when the Bluetooth module of the projector receives the broadcast information sent by the external Bluetooth remote controller, the main control chip analyzes the broadcast information. Specifically, the message format of the broadcast information is a series of message contents which are sequentially a header file field, a message length field, a bluetooth manufacturer field, an MAC address field and a key instruction field, wherein the header file field is 0x (hexadecimal), the message length field is 8 bits (binary), the manufacturer field is 24 bits (binary), the MAC address field is 56 bits (binary), and the key instruction field is 32 bits (binary). The analysis of the broadcast information by the main control chip is specifically to sequentially extract and identify the contents of each field in the message according to the message format, so that the main control chip obtains the MAC address (i.e. remote control MAC address) in the broadcast information received by the bluetooth module. For example, if the content of a message in a broadcast message is 0x0EFF004601F8DD97353AC4FFFFFFFF (hexadecimal), 0x is a header field, 0E is a message length field, FF0046 is a manufacturer field, 01F8DD97353AC4 is a MAC address field, and ffffff is a key instruction field.
B2, comparing the remote control MAC address with a pre-stored local MAC address by a main control chip of the projector, and if the local MAC address is matched with the remote control MAC address, acquiring and identifying a broadcast key instruction in the broadcast information by the main control chip of the projector;
only one local MAC address is stored in a local wake-up file of the projector, namely the local MAC address in the local wake-up file is the MAC address of a Bluetooth remote controller (namely, a remote controller with a Bluetooth function) which is successfully paired with a Bluetooth module of the projector recently. For example, the MAC address of the bluetooth remote controller a is stored in the local wake-up file of the projector, which indicates that the bluetooth module of the projector and the bluetooth remote controller a are successfully paired, and if the bluetooth module receives a new remote control MAC address in the standby state of the projector, the new remote control MAC address is compared with the local MAC address of the bluetooth remote controller a, and if the local MAC address is matched with the remote control MAC address (if the local MAC address is completely the same as the remote control MAC address), the new remote control MAC address is sent by the bluetooth remote controller a, and the main control chip further analyzes the broadcast information sent by the bluetooth remote controller a, so as to obtain and identify the broadcast key command in the broadcast information.
And step B3, if the broadcast key instruction is a preset startup instruction, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger the startup key in the key board.
In connection with the above example, if the broadcast key instruction is a preset power-on instruction, indicating that the user has triggered the power-on key of the bluetooth remote controller a, the main control chip controls the wake-up pin of the bluetooth module to output a pull-down low-level signal to the trigger pin to trigger the power-on key in the keypad of the projector, so as to achieve the same effect as that when the power-on key is pressed by the keypad to output a low-level power-on.
In addition, if the broadcast key instruction is not a preset startup instruction, it indicates that although the broadcast key instruction is broadcast information sent by the bluetooth remote controller a, the broadcast key instruction carried in the broadcast information is not a startup instruction for waking up the projector, and since the projector is in a standby state and does not respond to instructions other than the startup instruction, the main control chip discards the broadcast information and does not respond.
In addition, before the remote controller detects that the start key of the remote controller is triggered, the projector is further configured to:
step C1, when the projector is in a standby stage, a master control chip of the projector controls a Bluetooth module to enter a low power consumption mode, and the Bluetooth module only receives broadcast information of an external Bluetooth remote controller in the low power consumption mode;
the projector is not completely powered off after entering the standby state, the main control chip of the projector is in the low power consumption standby operation state, and meanwhile, the main control chip supplies power to the Bluetooth module so that the Bluetooth module is in the operation state, therefore, the Bluetooth module is in the operation state of the low power consumption mode, at the moment, the Bluetooth module can only receive the broadcast information broadcasted by the external Bluetooth remote controller, and the one-to-one control instruction sent by the Bluetooth remote controller does not respond.
C2, detecting whether a local awakening file prestored in the projector is empty by a main control chip of the projector, and if the local awakening file is not empty, acquiring a local MAC address in the local awakening file by the main control chip, wherein the local MAC address is the MAC address of the remote controller successfully matched with the Bluetooth module of the projector; at most one local MAC address is stored in a local wake-up file of the projector.
If the projector has an external bluetooth remote controller, the projector may create a local wake-up file named wake _ on.ble locally, where the local wake-up file is used to store a Media Access Control Address (MAC Address) Address of the bluetooth remote controller that has been paired to work by the projector, that is, the local wake-up file is not empty at this time, and the main Control chip may write the local MAC Address into the bluetooth module, so that the bluetooth module may match the local MAC Address when receiving broadcast information.
In an embodiment of the application, if the projector does not have a pairing record of the bluetooth remote controller, that is, the local wakeup file is empty, and after the projector is in a standby state, when the main control chip cannot find the local wakeup file with the local MAC address, the bluetooth module matches broadcast information of any bluetooth remote controller of the same type, that is, the bluetooth module matches first target broadcast information in which broadcast manufacturer information of a manufacturer field is the same as local manufacturer information prestored in the projector, and does not determine whether the MAC address in the first target broadcast information is matched, and then only determines whether a broadcast key instruction in the first target broadcast information matches a preset power-on instruction, if the broadcast key instruction in the first target broadcast information is the preset power-on instruction, the main control chip controls the power-on pin of the bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger the keyboard key.
In the embodiment, after the projector enters the standby state, the main control chip controls the bluetooth module to enter the low power consumption mode, and the bluetooth module only receives the broadcast information of the external bluetooth remote controller in the low power consumption mode; and a local wake-up file is creatively added in the projector, at most one local MAC address successfully matched with the Bluetooth of the projector is stored, only when the broadcast MAC address in the broadcast information is matched with the local MAC address, the broadcast key instruction in the broadcast information is further acquired and identified, and finally, when the broadcast key instruction is a preset power-on instruction, the main control chip controls the wake-up pin of the Bluetooth module to output a pull-down low-level signal to the trigger pin so as to trigger the power-on key in the key board, so that the Bluetooth remote controller is realized to wake up the projector in a low-power-consumption Bluetooth communication mode. Furthermore, the local awakening file is creatively arranged in the projector, and only one local MAC address successfully matched with the Bluetooth of the projector is stored in the local awakening file, so that the user is limited to awaken the projector only through the current remote controller successfully matched with the Bluetooth of the projector, the projector is prevented from being mistakenly touched and awakened by other remote controllers, and the uniqueness and reliability of remote awakening of the projector by matching the Bluetooth remote controller are ensured.
Further, in another embodiment of the projection interactive system of the present application, the analyzing the broadcast information by the main control chip of the projector specifically includes:
d1, a main control chip of the projector analyzes the broadcast information, and extracts the broadcast chip manufacturer information of a Bluetooth manufacturer field in the broadcast information; the message content of the broadcast information is a message length field, a Bluetooth manufacturer field, an MAC address field and a key instruction field in sequence;
step D2, comparing the manufacturer information of the broadcasting chip with the local chip manufacturer information of the Bluetooth module prestored in the projector; if the manufacturer information of the broadcast chip is not matched with the manufacturer information of the local chip, the main control chip fails to analyze the broadcast information, and discards the broadcast information; if the broadcast chip manufacturer information is matched with the local chip manufacturer information, the main control chip successfully analyzes the broadcast information and extracts the remote control MAC address in the broadcast information.
Before comparing the remote control MAC address with the local MAC address, the broadcasting chip manufacturer information and the local chip manufacturer information in the broadcasting information can be compared, if the broadcasting chip manufacturer information is not matched with the local chip manufacturer information, the main control chip directly discards the broadcasting information. The remote control MAC address in the broadcast information is further extracted only when the information of the broadcast chip manufacturer is matched with the information of the local chip manufacturer, so that the phenomenon that too much computing resources of the main control chip are wasted to extract and compare the remote control MAC address is avoided, when the information of the chip manufacturer is not matched, the broadcast information received by the Bluetooth module is directly discarded, and the MAC address comparison efficiency is improved.
In addition, after the main control chip of the projector detects whether the local wake-up file prestored in the projector is empty, the projector is further configured to:
step E1, if the local wake-up file is empty, when a Bluetooth module of the projector receives broadcast information, the main control chip judges whether the signal intensity of the broadcast information is greater than a preset intensity threshold value;
step E2, if the signal intensity of the broadcast information is greater than a preset intensity threshold value, when the manufacturer information of the broadcast chip in the broadcast information is matched with the manufacturer information of the local chip, the master control chip stores the remote control MAC address in the broadcast information into a local wake-up file to be used as a local MAC address, and Bluetooth pairing between the Bluetooth module of the projector and an external Bluetooth remote controller for sending the broadcast information is achieved;
e3, a main control chip of the projector acquires and identifies a broadcast key instruction in the broadcast information; and if the broadcast key instruction is a preset starting instruction, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger the starting key in the key board.
After the step of acquiring and identifying the broadcast key instruction in the broadcast information by the main control chip of the projector, the projector is further configured to:
and if the broadcast key instruction is not a preset starting instruction, discarding the broadcast information by a main control chip of the projector.
When the main control chip of the projector judges that the local wake-up file is empty, the main control chip of the projector indicates that the current projector does not finish Bluetooth pairing with any Bluetooth remote controller, and can perform Bluetooth pairing with the Bluetooth remote controller of the same chip manufacturer, for example, the manufacturer of the projector is the manufacturer of the chip A, the projector performs Bluetooth pairing only with the Bluetooth remote controller of the manufacturer of the chip A based on comparison between the information of the manufacturer of the broadcasting chip and the information of the manufacturer of the local chip.
In addition, in order to avoid simultaneous triggering in a plurality of bluetooth remote controllers, the projector cannot determine which remote controller carries out comparison of subsequent chip manufacturer information, when a bluetooth module of the projector receives broadcast information, the signal intensity of the broadcast information is evaluated, if the signal intensity of the broadcast information is greater than a preset intensity threshold value, it is indicated that a user carries the bluetooth remote controller and the projector are very close to each other, the user has a bluetooth pairing intention, and at the moment, comparison of the broadcast chip manufacturer information and local chip manufacturer information in the broadcast information is further carried out. If the signal intensity of the broadcast information is smaller than or equal to the preset intensity threshold value, the Bluetooth remote controller is far away from the projector, and the intention of the user for controlling the Bluetooth remote controller to carry out Bluetooth pairing is not strong.
When the broadcast chip manufacturer information is matched with the local chip manufacturer information in the broadcast information, the main control chip stores the remote control MAC address in the broadcast information into a local wake-up file to be used as a local MAC address, so that the projector establishes the local wake-up file, further acquires and identifies a broadcast key instruction in the broadcast information, and when the broadcast key instruction is a preset power-on instruction, the main control chip controls a wake-up pin of the Bluetooth module to output a pull-down low-level signal to the trigger pin so as to trigger a power-on key in a key board, thereby providing an implementation mode for establishing the local wake-up file of the projector.
Optionally, the projector is further configured to:
step F1, after the signal intensity of the broadcast information is determined to be greater than a preset intensity threshold value, a main control chip of the projector detects whether a preset key combination event is triggered by a key board;
step F2, if the preset key combination triggering event is not detected, the main control chip does not respond; if the preset key combination triggering event is detected, the main control chip further compares the broadcast chip manufacturer information with the local chip manufacturer information in the broadcast information;
when the broadcast chip manufacturer information in the broadcast information is matched with the local chip manufacturer information, the main control chip stores the remote control MAC address in the broadcast information into a local wake-up file to be used as a local MAC address.
In order to further improve the Bluetooth pairing accuracy of the projector and the Bluetooth remote controller and increase the judgment of the preset key combination event of the keypad, if the preset key combination event is that a user simultaneously presses a menu key and a Home key of the projector, only when the signal intensity of the broadcast information is greater than a preset intensity threshold value and the keypad triggers the preset key combination event to be met simultaneously, the information of a broadcast chip manufacturer and the information of a local chip manufacturer in the broadcast information are further compared, and the Bluetooth pairing requirement of the user for operating the Bluetooth remote controller is accurately predicted.
Further, in yet another embodiment of the projection interactive system of the present application, the projector is further configured to:
and G, after the projector enters the standby state and the start-up key in the key board is triggered by the main control chip of the projector, the main control chip controls the projector to exit the standby state and enter the start-up state, and the WIFI function and the voice control function of the projector are started, so that the projector does not respond to the broadcast information of the external Bluetooth remote controller.
After the main control chip triggers the power-on key, the projector exits the standby state to enter the power-on state, the Bluetooth module enters the traditional Bluetooth function, the Bluetooth module and the main control chip do not respond to the broadcast information of the external Bluetooth remote controller any more, the WIFI function and the voice control function of the projector are both normally started, and a user can transmit files to the projector and perform voice control.
In addition, the projector is further configured to:
and step H, after the projector enters the startup state, after a startup key in a keyboard is triggered by a main control chip of the projector or a Bluetooth module of the projector receives a startup trigger instruction sent by an external Bluetooth remote controller, the main control chip controls the projector to enter a standby state, and the WIFI function and the voice control function of the projector are turned off.
The power-on key has a power-on function and a power-off function, wherein the power-on function is to switch the projector from a standby state to a power-on state, and the power-off function is to switch the projector from the power-on state to the standby state. After the projector enters the startup state, after a startup key or a projector Bluetooth module in a main control chip trigger key board receives a startup trigger instruction sent by an external Bluetooth remote controller, the main control chip controls the projector to enter the standby state, and the WIFI function and the voice control function of the projector are turned off, so that the main control chip controls the Bluetooth module to enter the low power consumption mode, and the Bluetooth module only receives broadcast information of the external Bluetooth remote controller in the low power consumption mode.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the term "comprising a" \8230; "does not exclude the presence of additional identical elements in any of the processes, methods, articles, or devices comprising that element, and the like-named components, features, elements, and/or features in different embodiments of the application may have the same meaning or different meanings as is determined by their interpretation in that particular embodiment or further below in that particular embodiment.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, this information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at 8230; …" or "when 8230; \8230; or" in response to a determination ", depending on the context. Also, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "a, B or C" or "a, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not limited to be performed in the exact order illustrated and may be performed in other orders unless explicitly stated. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or other steps.
It should be noted that step numbers such as S10 and S20 are used herein for the purpose of more clearly and briefly describing the corresponding contents, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform S20 first and then S10 in the specific implementation, but these should be within the protection scope of the present application.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the precise embodiments described above, which are meant to be illustrative only and not limiting, and that various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope of the appended claims and the spirit of the appended claims.

Claims (8)

1. A projection interaction system is characterized by comprising a projector and a remote controller, wherein the projector comprises a main control chip, a Bluetooth module and a key board, the Bluetooth module and the key board are both in communication connection with the main control chip, the Bluetooth module comprises at least one awakening pin, and the awakening pin is electrically connected with a trigger pin of a power-on key in the key board; the remote controller has a low-power Bluetooth function; the interaction process of the projection interaction system comprises the following steps:
when the projector is in a starting pairing stage, the remote controller sends a Bluetooth pairing request to the projector so that a Bluetooth module of the projector completes Bluetooth pairing connection with the remote controller based on the Bluetooth pairing request;
the Bluetooth module of the projector transmits a pre-stored custom attribute to the remote controller in Bluetooth pairing connection through a GATT protocol, wherein the custom attribute comprises a chip manufacturer identifier of the Bluetooth module of the projector;
the remote controller receives the custom attribute and stores the chip manufacturer identifier in the custom attribute in a GATT transaction of the remote controller;
when the remote controller detects that a start-up key of the remote controller is triggered, the remote controller extracts the chip manufacturer identification in the GATT affair, and the remote controller synthesizes a start-up broadcast according to the chip manufacturer identification and takes the start-up broadcast as broadcast information to be broadcast outwards;
when the Bluetooth module of the projector receives the broadcast information, the main control chip of the projector analyzes the broadcast information, and when the main control chip successfully analyzes the broadcast information, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger a power-on key in the keypad;
the remote controller synthesizes the startup broadcast according to the chip manufacturer identification, and the specific steps of taking the startup broadcast as broadcast information to be broadcasted outwards are as follows:
the remote controller judges whether the extracted chip manufacturer identification is consistent with the existing starting broadcast type of the projector;
if the chip manufacturer identification is inconsistent with the existing startup broadcast type, the remote controller synthesizes a new startup broadcast according to the chip manufacturer identification, and the remote controller takes the new startup broadcast as broadcast information to be broadcast;
if the chip manufacturer identification is consistent with the existing startup broadcast type, the remote controller takes the existing startup broadcast of the projector as broadcast information to be broadcast;
before the main control chip of the projector controls the wakeup pin of the bluetooth module to output a pull-down low level signal to the trigger pin, the projector is further configured to:
when the main control chip of the projector successfully analyzes the broadcast information, extracting a remote control MAC address in the broadcast information;
the master control chip of the projector compares the remote control MAC address with a pre-stored local MAC address, and if the local MAC address is matched with the remote control MAC address, the master control chip of the projector acquires and identifies a broadcast key instruction in the broadcast information;
and if the broadcast key instruction is a preset starting instruction, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger the starting key in the key board.
2. The projection interaction system of claim 1, wherein before the remote control detects that a power-on key of the remote control is activated, the projector is further to:
when the projector is in a standby stage, the main control chip of the projector controls the Bluetooth module to enter a low power consumption mode, and the Bluetooth module only receives broadcast information of an external Bluetooth remote controller in the low power consumption mode;
the method comprises the steps that a main control chip of the projector detects whether a local awakening file prestored in the projector is empty or not, and if the local awakening file is not empty, the main control chip obtains a local MAC address in the local awakening file, wherein the local MAC address is the MAC address of a remote controller successfully matched with a Bluetooth module of the projector; at most one local MAC address is stored in a local wake-up file of the projector.
3. The projection interactive system of claim 2, wherein the parsing of the broadcast information by the main control chip of the projector is specifically:
the main control chip of the projector analyzes the broadcast information and extracts the broadcast chip manufacturer information of the Bluetooth manufacturer field in the broadcast information; the message content of the broadcast information is a message length field, a Bluetooth manufacturer field, an MAC address field and a key instruction field in sequence;
comparing the manufacturer information of the broadcasting chip with the local chip manufacturer information of the Bluetooth module prestored in the projector;
if the manufacturer information of the broadcast chip is not matched with the manufacturer information of the local chip, the main control chip fails to analyze the broadcast information, and discards the broadcast information;
if the manufacturer information of the broadcast chip is matched with the manufacturer information of the local chip, the main control chip successfully analyzes the broadcast information and extracts the remote control MAC address in the broadcast information.
4. The projection interaction system of claim 3, wherein after the main control chip of the projector detects whether a local wake-up file pre-stored by the projector is empty, the projector is further configured to:
if the local wake-up file is empty, when a Bluetooth module of the projector receives the broadcast information, the main control chip judges whether the signal intensity of the broadcast information is greater than a preset intensity threshold value;
if the signal intensity of the broadcast information is greater than a preset intensity threshold value, when the vendor information of the broadcast chip in the broadcast information is matched with the vendor information of the local chip, the master control chip stores a remote control MAC address in the broadcast information into a local wake-up file to be used as a local MAC address, and Bluetooth pairing between a Bluetooth module of the projector and an external Bluetooth remote controller sending the broadcast information is realized;
a main control chip of the projector acquires and identifies a broadcast key instruction in the broadcast information; and if the broadcast key instruction is a preset starting instruction, the main control chip of the projector controls the awakening pin of the Bluetooth module to output a pull-down low level signal to the trigger pin so as to trigger the starting key in the key board.
5. The projection interaction system of claim 4, wherein the projector is further to:
after the signal intensity of the broadcast information is determined to be greater than a preset intensity threshold value, a main control chip of the projector detects whether a preset key combination event is triggered by a key board;
if the preset key combination triggering event is not detected, the main control chip does not respond;
if the preset key combination triggering event is detected, the main control chip further compares the broadcast chip manufacturer information with the local chip manufacturer information in the broadcast information;
when the manufacturer information of the broadcasting chip in the broadcasting information is matched with the manufacturer information of the local chip, the main control chip stores the remote control MAC address in the broadcasting information into a local wake-up file to be used as a local MAC address.
6. The projection interactive system of claim 5, wherein after the step of the main control chip of the projector acquiring and identifying the broadcast key command in the broadcast information, the projector is further configured to:
and if the broadcast key instruction is not a preset starting instruction, discarding the broadcast information by a main control chip of the projector.
7. The projection interaction system of claim 6, wherein the projector is further to:
after the projector enters the standby state and the start-up key in the key board is triggered by the main control chip of the projector, the main control chip controls the projector to exit the standby state and enter the start-up state, starts the WIFI function and the voice control function of the projector, and does not respond to the broadcast information of the external Bluetooth remote controller.
8. The projection interaction system of claim 7, wherein the projector is further to:
after the projector enters the startup state, after a startup key in a startup key board or a projector Bluetooth module of the projector triggers the key board to receive a startup triggering instruction sent by an external Bluetooth remote controller, the main control chip controls the projector to enter the standby state, and the WIFI function and the voice control function of the projector are turned off.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104581331A (en) * 2015-01-20 2015-04-29 江苏惠通集团有限责任公司 Pairing method and device
CN110012328A (en) * 2019-03-13 2019-07-12 青岛海信传媒网络技术有限公司 A kind of method and device interacted with smart television

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6724339B2 (en) * 2001-03-14 2004-04-20 Universal Electronics Inc. System and method for controlling home appliances
US20120295662A1 (en) * 2010-11-18 2012-11-22 Jeremy Haubrich Universal Remote
CN102750812B (en) * 2012-06-05 2014-04-16 深圳市镭润科技有限公司 Method for matching reception device and remote controller, reception device and remote controller
CN105741525B (en) * 2016-02-24 2019-10-01 北京小米移动软件有限公司 Processing method, device and the equipment of remote controler binding
CN107155123A (en) * 2017-06-14 2017-09-12 深圳Tcl新技术有限公司 Matching method, television set and the readable storage medium storing program for executing of bluetooth equipment and television set
CN107635214B (en) * 2017-08-21 2019-10-01 深圳创维－Rgb电子有限公司 Response method, device, system and readable storage medium storing program for executing based on blue Tooth remote controller
CN208834477U (en) * 2018-08-27 2019-05-07 深圳供电局有限公司 Remote controller for controlling automatic switch equipment used on power distribution network column
CN109451474A (en) * 2018-10-15 2019-03-08 四川长虹电器股份有限公司 Controlled terminal equipment and its bluetooth return even method
CN109788330A (en) * 2018-12-25 2019-05-21 深圳康佳电子科技有限公司 TV bluetooth standby wakeup processing method, TV and remote controler
CN111698671B (en) * 2020-05-26 2023-07-21 昆山海菲曼科技集团股份有限公司 Bluetooth remote controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104581331A (en) * 2015-01-20 2015-04-29 江苏惠通集团有限责任公司 Pairing method and device
CN110012328A (en) * 2019-03-13 2019-07-12 青岛海信传媒网络技术有限公司 A kind of method and device interacted with smart television

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