CN115243018A - Central control device for projector curtain control and control method thereof - Google Patents
Central control device for projector curtain control and control method thereof Download PDFInfo
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- CN115243018A CN115243018A CN202210633866.0A CN202210633866A CN115243018A CN 115243018 A CN115243018 A CN 115243018A CN 202210633866 A CN202210633866 A CN 202210633866A CN 115243018 A CN115243018 A CN 115243018A
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- 238000000034 method Methods 0.000 title claims description 32
- 238000004891 communication Methods 0.000 abstract description 11
- 230000006855 networking Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 8
- 230000006978 adaptation Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
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- 238000010276 construction Methods 0.000 description 1
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- 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
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Projection Apparatus (AREA)
Abstract
The invention relates to a central control device for controlling a projector curtain, which comprises: the projector control system comprises a main control unit, a projector control unit and a relay, wherein the main control unit is connected with the projector control unit and the relay; the projector control unit is used for being connected with a projector, the relay is used for being connected with a curtain, and the main control unit is used for being connected with the internet of things gateway in a wired and/or wireless mode and connected with the terminal through the internet of things gateway; the main control unit is used for executing corresponding operation according to the received terminal instruction forwarded by the Internet of things gateway and feeding the operation back to the terminal; the projector control unit is used for acquiring the running data of the projector and controlling the switch of the projector according to the execution operation of the main control unit; the relay is used for controlling the curtain to lift according to the execution operation of the main control unit. The utility model provides a system design is simple, through setting up the communication of well accuse device and thing antithetical couplet gateway for well accuse device possesses networking ability, thereby realizes the unified control to projecting apparatus and curtain.
Description
Technical Field
The invention relates to the technical field of information, in particular to a central control device for controlling a projector curtain and a control method thereof.
Background
At present, a mode of a multimedia centralized controller is mostly adopted for controlling a projector and a curtain, a switch of the projector is controlled through RS-232 serial port communication, and the projection curtain is lifted through a contact wire control mode of lifting a live wire and a zero wire, and the mode only provides a control function.
At present, a control signal line needs to be deployed to a multimedia integrated controller for controlling a projector and a curtain, wiring is complex, construction and maintenance cost is high, and the running state of equipment cannot be monitored in real time by a cloud platform. The multimedia integrated controller cannot be detached in the actual engineering application process, so that the situation of excess equipment capacity exists, and the use cost of a user is increased. And once the traditional hardware is sold and marketed, the functions and the performances are solidified, and the functions, the performances and the safety of the hardware cannot be continuously updated in an iterative manner according to the subsequent requirements.
Disclosure of Invention
Based on the control method, the invention provides a central control device for controlling a projector curtain and a control method thereof. The control system of this application design is simple, realizes the communication with the thing allies oneself with the gateway through well accuse device for well accuse device possesses networking capability, thereby realizes the unified control to projecting apparatus and curtain.
According to a first aspect of some embodiments of the present application, there is provided a central control apparatus for projector curtain control, comprising:
the projector control device comprises a main control unit, a projector control unit and a relay, wherein the main control unit is respectively connected with the projector control unit and the relay;
the projector control unit is used for being connected with a projector, the relay is used for being connected with a curtain, and the main control unit is used for being connected with the internet of things gateway in a wired and/or wireless mode and being connected with a terminal through the internet of things gateway;
the main control unit is used for executing corresponding operation according to the received instruction of the terminal forwarded by the Internet of things gateway and feeding the instruction back to the terminal, wherein the instruction comprises a configuration instruction, a state query instruction and a switch instruction;
the projector control unit is used for acquiring the running data of the projector and controlling the switch of the projector according to the execution operation of the main control unit;
the relay is used for controlling the curtain to ascend and descend according to the execution operation of the main control unit.
Furthermore, the central control device also comprises a storage unit, and the storage unit is connected with the main control unit;
the storage unit is used for storing the data acquired by the central control device.
Further, the central control device is connected with the internet of things gateway through an RS-485 interface or an RS-232 interface, or the central control device is connected with the internet of things gateway through a ZigBee wireless network.
Furthermore, the main control unit is an MCU control chip, the projector control unit is an RS-232 chip, and the storage unit is a Flash memory.
According to a second aspect of embodiments of the present application, there is provided a projector curtain control method applied to the central control device according to the first aspect, the method including the steps of:
the master control unit establishes connection with the terminal through the internet of things gateway according to identity information of the central control device, wherein the identity information comprises an equipment ID, a secret key and an authentication certificate of the central control device;
the main control unit acquires a configuration instruction issued by the terminal according to the projector and sends the configuration instruction to the projector control unit, wherein the configuration instruction comprises a baud rate, a check code, a power-on code and a power-off code of the projector;
the projector control unit adapts the projector according to the received configuration instruction.
Further, the method further comprises:
the main control unit acquires a state query instruction issued by the terminal and sends the state query instruction to the projector control unit;
the projector control unit acquires current operation data of the projector according to the received state query instruction and sends the current operation data to the main control unit;
the main control unit judges whether the current operation data exceeds an operation period threshold of the projector;
and when the number of the equipment exceeds the preset threshold value, the main control unit sends an equipment warning to the terminal through the Internet of things gateway.
Further, the method further comprises:
and the main control unit sends the current operation data to the terminal so that the terminal judges whether the current operation data is consistent with the archived operation data or not and updates the archived operation data to the current operation data when the current operation data is inconsistent with the archived operation data.
Further, the method also includes:
the main control unit sends the firmware version of the central control device to the terminal;
the main control unit acquires the judgment of whether the terminal needs to update the firmware version;
when the upgrading is needed, the storage unit receives and stores a new firmware version issued by the terminal;
the main control unit updates the firmware version of the central control device according to the stored new firmware version and reports the updated firmware version to the terminal;
and the main control unit receives the judgment of whether the updating is successful or not, and updates the firmware version of the central control device again when the updating of the firmware version is failed.
Further, after obtaining the status query instruction issued by the terminal, the method further includes:
and the main control unit acquires the running state of the relay control curtain according to the state query instruction and sends the running state to the terminal.
Further, the method further comprises:
the main control unit acquires a control switch instruction sent by the terminal, and controls the projector control unit to send a switch control code to the projector so that the projector is turned on or turned off according to the switch control code;
and the main control unit acquires a control switch instruction sent by the terminal and sends an IO control instruction to the relay so as to enable the curtain to rise or fall according to the IO control instruction.
The utility model provides a well accuse device design is simple, and is more than the multi-media center control system cost/performance ratio, well accuse device can be connected with the thing allies oneself with the gateway, realizes the communication with the thing allies oneself with the gateway for well accuse device possesses networking ability, thereby realizes the unified control to projecting apparatus and curtain. And the selection of a multi-Internet of things access protocol is provided, wired and wireless communication protocols can be flexibly selected, and the implementation requirements under different conditions are met. The remote control and the running state synchronization function of the projection and the curtain are added, the running state and the running data of the equipment can be collected, and the central control device can give early warning according to the characteristics of the electric appliance. The firmware upgrading capability of the central control device is increased, the software definition hardware function is realized, and the capabilities of hardware functional characteristics, security vulnerability protection upgrading and the like are solved. The new security threat is timely repaired through firmware upgrading, continuous reinforcement is achieved, patches are timely released for product defects of hardware, and system stability is improved.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Drawings
Fig. 1 is a schematic structural diagram of a projector curtain control system in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a central control device in an embodiment of the present application;
fig. 3 is a schematic flowchart of a projector curtain control method in an embodiment of the present application;
fig. 4 is a schematic flow chart illustrating the query of the projector and the curtain status in the embodiment of the present application;
fig. 5 is a schematic flowchart of updating a central control device in the embodiment of the present application;
fig. 6 is a schematic flowchart of controlling the projector and the curtain switch in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
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 exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the claims that follow. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
To address the problems involved in the background.
The present application provides a central control device for a projector curtain control system, please refer to fig. 1, the system includes: the central control device is connected with the internet of things gateway, the projector and the curtain respectively, and the terminal is connected with the internet of things gateway.
In this application, the terminal may be a mobile phone, and in other examples, the smart terminal may also be another mobile terminal (e.g., a tablet computer), a wearable device (e.g., a smart watch, a sports bracelet, smart glasses), a smart car-mounted device, and the like, which have 4G or 5G communication capabilities. The Internet of things gateway can realize protocol conversion between the perception network and the communication network and between perception networks of different types, and can realize wide area interconnection and local area interconnection. In this application, the thing allies oneself with the gateway and can realize the protocol conversion between well accuse device and the terminal, provides networking function for well accuse device. The projector is a device that can project images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, etc. through different interfaces to play corresponding video signals. The curtain is a tool for displaying images and video files released by the projector. In this application, the projecting apparatus is connected with the central control device and is controlled through the central control device in a networking way.
As shown in fig. 2, the central control device includes a main control unit, a projector control unit, and a relay, and the main control unit is connected to the projector control unit and the relay, respectively. Projector control unit is connected with the projector, and the relay is connected with the curtain, main control unit through wired and/or wireless mode with the thing allies oneself with the gateway and connects to be connected with the terminal through the thing allies oneself with the gateway.
Specifically, the central control device further comprises a storage unit, the storage unit is connected with the main control unit, and the storage unit is used for storing data acquired by the central control device. The central control device also comprises a voltage reduction unit connected with the main control unit and used for reducing the external voltage and then supplying power to the central control device. In the application, the voltage reduction unit can reduce the direct current of 12V to 3.3V and transmit the direct current to the central control device.
In an alternative example, the main control unit may be an MCU control chip, the projector control unit may be an RS-232 chip, the storage unit may be a Flash memory, and the voltage reduction unit may be an MP2359 converter. The main control unit is connected with the projector control unit through an RS-232 interface, connected with the relay through an IO interface and connected with the storage unit through an SPI interface. In an optional example, the central control device is connected with the internet of things gateway through an RS-485 interface or an RS-232 interface, or the central control device is connected with the internet of things gateway through a ZigBee wireless network.
The main control unit is used for executing corresponding operation and feeding back the operation to the terminal according to the received terminal instruction forwarded by the Internet of things gateway, wherein the instruction comprises a configuration instruction, a state inquiry instruction and a switch instruction
The projector control unit is used for acquiring the running data of the projector and controlling the switch of the projector according to the execution operation of the main control unit; the relay is used for controlling the curtain to lift according to the execution operation of the main control unit.
And the terminal executes corresponding operation according to the requirements of the user and issues a corresponding instruction to the Internet of things gateway, wherein the instruction specifically indicates the configuration operation, the state query operation and the switch operation of the projector and the curtain by the user. And the Internet of things gateway receives and sends the instruction to the central control device. The main control unit in the central control device determines to control the projector control unit or the relay according to the received instruction, so that the projector is controlled to start and the curtain is controlled to lift. And secondly, the states of the projector and the curtain can be correspondingly inquired according to the state inquiry instruction, and the acquired states are fed back to the terminal.
The application provides a central control device of projecting apparatus curtain control, this central control device can be connected with the terminal through the thing allies oneself with the gateway. The help user can realize the control to the lift of projecting apparatus switch and curtain through control terminal, acquires the running state data of projecting apparatus through this well accuse device. Secondly, this central control device adopts wired or wireless communication technique and thing networking to close and communicate, simplifies and implements the wiring, satisfies the thing networking control requirement of different scenes. And finally, the central control device is respectively connected with the projector and the curtain to realize serial port communication control of the projector and wire control lifting management of the curtain.
Corresponding to the central control device for controlling a projector curtain, as shown in fig. 3, the present application further provides a method for controlling a projector curtain, where the method is applied to the central control device, and includes:
step S11: and the master control unit establishes connection with the terminal through the Internet of things gateway according to the identity information of the central control device, wherein the identity information comprises the equipment ID, the secret key and the authentication certificate of the central control device.
The identity information of the central control device is used for indicating the product model, the attribute and the like of the central control device, and can be embodied by equipment ID, secret keys, authentication certificates and the like. The central control device can store the information in a storage unit, and when the connection with the terminal needs to be established, the information is sent to the terminal through the internet of things gateway to establish the connection. The adaptability of the central control device is improved, and the central control device can be connected with various terminals.
Step S12: the main control unit acquires a configuration instruction issued by the terminal according to the projector and sends the configuration instruction to the projector control unit, wherein the configuration instruction comprises a baud rate, a check code, a power-on code and a power-off code of the projector.
Step S13: the projector control unit adapts the projector according to the received configuration instruction.
The central control device not only needs to be connected with the terminal, but also needs to be matched with the projector. The configuration instruction is used for instructing the terminal to control the central control device to establish connection with the projector according to the model of the projector. Specifically, the main control unit acquires the configuration command and sends the configuration command to the corresponding projector control unit, and the projector control unit establishes connection with the projector according to the content of the configuration command. This central control device has guaranteed that the connection adaptation at projecting apparatus and terminal becomes more nimble through the model looks adaptation with the projecting apparatus, and the configuration of projecting apparatus can change as required, solves the inflexible problem of different projecting apparatus adaptations.
In a preferred embodiment, as shown in fig. 4, the method further comprises:
step S21: and the master control unit acquires a state query instruction issued by the terminal and sends the state query instruction to the projector control unit.
Wherein, the issuing command can be realized by a heartbeat inquiry mechanism. The heartbeat inquiry mechanism is a mechanism which sends a self-defined structure body at regular time to make the opposite side know that the opposite side still lives so as to ensure the effectiveness of connection. In the application, the main control unit continuously receives the state query instruction and feeds back a response result to the terminal, so that the effective connection between the central control device and the terminal is ensured.
Step S22: and the projector control unit acquires the current operation data of the projector according to the received state query instruction and sends the current operation data to the main control unit.
The state query instruction comprises query of the operation state of the projector, and the operation state can be represented by operation data, wherein the operation data can comprise the on-off state of the projector, the on-off times and the total operation time of the bulb.
Step S23: and the main control unit judges whether the current operation data exceeds the operation period threshold of the projector.
The operation period threshold value is used for indicating the maximum value of the switching times of the projector and the maximum value of the operation time of the bulb. The projector may be obtained through factory inspection, or may be set according to user requirements.
Step S24: and when the number of the equipment exceeds the preset threshold value, the main control unit sends an equipment warning to the terminal through the Internet of things gateway.
The device alert is used to indicate the length of life of the projector and can remind the user that the bulb is to be replaced or that the switchgear is to be repaired. The operation data of the projector is obtained through the central control device, the service life of the projector is determined, so that a user can replace or maintain the projector in time, and the fault is avoided when no preparation is made.
In a preferred embodiment, referring to fig. 4, the method further comprises:
step S25: and the main control unit sends the current operating data to the terminal so that the terminal judges whether the current operating data is consistent with the archived operating data or not and updates the archived operating data to the current operating data when the current operating data is inconsistent with the archived operating data.
The current operating data is obtained when the state command is inquired, and the archived operating data is used for indicating the number of operations before the state command is inquired. Through real-time monitoring and comparison of the operation data of the projector, the terminal and the projector can synchronously operate.
In a specific embodiment, after obtaining the status query instruction issued by the terminal, the method further includes:
step S26: and the main control unit acquires the running state of the relay control curtain according to the state query instruction and sends the running state to the terminal.
The state query instruction also comprises the operation state of the query curtain. The middle control unit can simultaneously acquire the running states of the projector and the curtain, so that the states can be updated in time at the terminal, and the unification of the running states of the projector and the curtain is ensured.
In a preferred embodiment, as shown in fig. 5, the method further comprises:
step S31: and the main control unit sends the firmware version of the central control device to the terminal.
Step S32: and the main control unit acquires the judgment of whether the terminal needs to update the firmware version.
Step S33: and when the upgrading is needed, the storage unit receives and stores the new firmware version issued by the terminal.
Step S34: the main control unit updates the firmware version of the central control device according to the stored new firmware version and reports the updated firmware version to the terminal;
step S35: and the main control unit receives the judgment of whether the updating is successful or not, and updates the firmware version of the central control device again when the updating of the firmware version fails.
The firmware version refers to the version number of the firmware released by the government, and the version number includes the update of the application part and the update of the baseband part. In the present application, the firmware version is a version number of the central control device, and includes a part of content to be updated of the central control device.
In an alternative example, the firmware version update may be implemented via OTA space download techniques. Namely, when the central control device is connected with the Internet of things gateway, the main control unit reports the firmware version to the terminal through the Internet of things gateway, receives an OTA (over the air) upgrade notification when determining that the firmware version needs to be updated, and updates the firmware version through the Internet of things gateway.
In a preferred embodiment, as shown in fig. 6, the method further comprises:
step S41: the main control unit acquires a control switch instruction sent by the terminal, and controls the projector control unit to send a switch control code to the projector, so that the projector is turned on or turned off according to the switch control code.
Step S42: and the main control unit acquires a control switch instruction sent by the terminal and sends an IO control instruction to the relay so that the curtain rises or falls according to the IO control instruction.
The control switch command is used to instruct the projector and the curtain to switch on and off. The main control unit can control the projector and the curtain according to the command respectively and simultaneously, and the synchronous state of the projector and the curtain is guaranteed.
The utility model provides a well accuse device design is simple, and is more than the multi-media center control system cost/performance ratio, well accuse device can be connected with the thing allies oneself with the gateway, realizes the communication with the thing allies oneself with the gateway for well accuse device possesses networking ability, thereby realizes the unified control to projecting apparatus and curtain. And the selection of a multi-Internet of things access protocol is provided, wired and wireless communication protocols can be flexibly selected, and the implementation requirements under different conditions are met. The remote control and the running state synchronization function of the projection and the curtain are added, the running state and the running data of the equipment can be collected, and the central control device can give early warning according to the characteristics of the electric appliance. The firmware upgrading capability of the central control device is increased, the software definition hardware function is realized, and the capabilities of hardware functional characteristics, security vulnerability protection upgrading and the like are solved. The new security threat is timely repaired through firmware upgrading, continuous reinforcement is achieved, patches are timely released for product defects of hardware, and system stability is improved.
It is to be understood that the embodiments of the present application are not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present application is limited only by the following claims. The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the embodiments of the present application, several variations and modifications can be made, which all fall within the scope of the embodiments of the present application.
Claims (10)
1. A central control device for controlling a projector curtain, comprising:
the projector control device comprises a main control unit, a projector control unit and a relay, wherein the main control unit is respectively connected with the projector control unit and the relay;
the projector control unit is used for being connected with a projector, the relay is used for being connected with a curtain, and the main control unit is used for being connected with the internet of things gateway in a wired and/or wireless mode and connected with a terminal through the internet of things gateway;
the main control unit is used for executing corresponding operation according to the received instruction of the terminal forwarded by the Internet of things gateway and feeding the instruction back to the terminal, wherein the instruction comprises a configuration instruction, a state query instruction and a switch instruction;
the projector control unit is used for acquiring the running data of the projector and controlling the switch of the projector according to the execution operation of the main control unit;
the relay is used for controlling the curtain to ascend and descend according to the execution operation of the main control unit.
2. A projector curtain control central control apparatus as claimed in claim 1, wherein:
the central control device also comprises a storage unit, and the storage unit is connected with the main control unit;
the storage unit is used for storing the data acquired by the central control device.
3. A projector curtain control central control apparatus as claimed in claim 1, wherein:
the central control device is connected with the Internet of things gateway through an RS-485 interface or an RS-232 interface, or the central control device is connected with the Internet of things gateway through a ZigBee wireless network.
4. A projector curtain control central control apparatus as claimed in claim 1, wherein:
the main control unit is an MCU control chip, the projector control unit is an RS-232 chip, and the storage unit is a Flash memory.
5. A projector curtain control method applied to the center control device according to any one of claims 1 to 4, the method comprising the steps of:
the master control unit establishes connection with the terminal through the internet of things gateway according to identity information of the central control device, wherein the identity information comprises an equipment ID, a secret key and an authentication certificate of the central control device;
the main control unit acquires a configuration instruction issued by the terminal according to the projector and sends the configuration instruction to the projector control unit, wherein the configuration instruction comprises a baud rate, a check code, a power-on code and a power-off code of the projector;
the projector control unit adapts the projector according to the received configuration instruction.
6. The projector curtain control method of claim 5, further comprising:
the main control unit acquires a state query instruction issued by the terminal and sends the state query instruction to the projector control unit;
the projector control unit acquires current operation data of the projector according to the received state query instruction and sends the current operation data to the main control unit;
the main control unit judges whether the current operation data exceeds an operation period threshold of the projector;
and when the number exceeds the preset threshold value, the main control unit sends a device warning to the terminal through the Internet of things gateway.
7. The projector curtain control method of claim 6, further comprising:
and the main control unit sends the current operation data to the terminal so that the terminal judges whether the current operation data is consistent with the archived operation data or not and updates the archived operation data to the current operation data when the current operation data is inconsistent with the archived operation data.
8. The projector curtain control method of claim 5, further comprising:
the main control unit sends the firmware version of the central control device to the terminal;
the main control unit obtains the judgment of whether the terminal needs to upgrade the firmware version;
when the terminal needs to be upgraded, the storage unit receives and stores a new firmware version issued by the terminal;
the main control unit updates the firmware version of the central control device according to the stored new firmware version and reports the updated firmware version to the terminal;
and the main control unit receives the judgment of whether the updating is successful or not, and updates the firmware version of the central control device again when the updating of the firmware version fails.
9. The method as claimed in claim 6, wherein after obtaining the status query command issued by the terminal, the method further comprises:
and the main control unit acquires the running state of the relay control curtain according to the state query instruction and sends the running state to the terminal.
10. The projector curtain control method of claim 5, further comprising:
the main control unit acquires a control switch instruction sent by the terminal, and controls the projector control unit to send a switch control code to the projector so that the projector is turned on or turned off according to the switch control code;
and the main control unit acquires a control switch instruction sent by the terminal and sends an IO control instruction to the relay so as to enable the curtain to rise or fall according to the IO control instruction.
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