TWI697237B - Projector control management system - Google Patents

Abstract

A long-range wireless projector control management system, the whole system includes a set of multi-function control host, a set of control launch panels, a set of curtain control modules and a cloud server located in the background. The multi-function control host is connected to the projector end, and needs to receive various control commands issued by the control transmitting panel or the electronic device, for example, the projector powers on and off, and switches the input source. And according to the content of the control, the signal is forwarded to the curtain control module, so that the electric screen is synchronously raised or lowered. The multi-function control host can connect the cloud server to the cloud server to transmit the real-time status of the projector to the cloud server. When the return status of the projector is abnormal, the cloud server will actively send a reminder message to the electronic device to facilitate subsequent maintenance work by the relevant management personnel.

Description

Projector control management system

This technology is a remote projector control and management system device, and particularly relates to a projector control and management system with LoRa low-frequency wireless communication technology and WiFi network, and supports projectors that return abnormal status information on the projector side Control management system.

At present, the control devices related to the projector are all connected to the control terminal that sends signals by using the RS232 interface on the projector. However, when using the above-mentioned interface to transmit control serial commands, sometimes the problem is that the signal is unstable or even lost due to the long distance (recommended application distance is 15 meters).

And the currently applicable wireless control devices are mainly smart home management. No matter how many devices need to be controlled, a group of intelligent control hosts must be built on site, and then the required control is connected by wireless WiFi base station and infrared Equipment, so the system construction cost is high. In addition, if you use wireless WiFi or infrared connection, there are also restrictions on the hardware environment of the building and the light and even the transmission distance. It is less suitable for the projector installation environment used in the auditorium, activity center, or outdoor. And there is no status information backhaul design, remote managers can not know the current application status of the device.

Until now, various projector manufacturers have provided independent management systems. With the computer wired LAN, the projector can be controlled to turn on/off and view projections. Machine status... and other functions, but in real applications, often encounter projectors of different brands, appearing in the same user unit, then the management unit will not be able to be effective for remote projectors of various brands Unified management.

This system device uses a new generation of wireless transmission technology (Low Power Wide Area Network, LPWAN) wireless communication technology, hereinafter referred to as LoRa. Since LoRa uses a low frequency band below 1GHz, unlike the previous features of ultra-long distance and low power consumption data transmission and lower construction cost, there is no need to worry about the signal being affected by other building hardware environment or other wireless communication Interference.

The control and management system is especially suitable for the control and management of the projector. The multi-function control host is used to store various serial commands provided by the manufacturer of the projector, and receives the control launch panel or the LoRa low-frequency wireless communication technology. The execution command issued by the electronic device makes the projector turn on, turn off, switch the input source, etc. And synchronously forward the application instructions to the electric curtain control module using LoRa low-frequency wireless communication technology, so that the projection curtain synchronization can achieve the simultaneous falling of the projector when it is turned on, the simultaneous rise when it is turned off, or the temporary stop of the curtain.

In this control management system, in addition to receiving command work, its multi-function control host can also transmit the current status of the projector to the cloud server via WiFi network via the on-site WiFi, when the cloud server receives the projector device When an abnormal message is sent, the cloud server will issue a warning to the electronic device, so that the user or administrator can quickly check the status of the projector device.

In the above-mentioned electronic device, in addition to using the projector control program, log in to the cloud server through the web page to check the current status of the projector in the system, and also manage a single projector at a time through the control program Or multiple projectors. The projectors in all systems can be turned off at once by setting a unified shutdown time, so as to avoid the waste of energy and equipment life due to forgetting or neglect, and then achieve the goals of remote management and energy saving and environmental protection.

In this control management system, multi-function control host, curtain control module, control launch panel. These devices are all equipped with 8-Position Dip switch. In use, the address paddles must be transferred to the same group for group linkage. 8-Position Dip switch can dial a total of 001~255 group communication address range, so it is especially suitable for use in school classrooms or venues with multiple meeting rooms.

In order to achieve the above object, the present invention provides a projector control management system, which can be wirelessly transmitted to each receiving device according to the set command to make it act according to the command; the projector control management system includes: a multi-function control host It is used to store various serial commands provided by the manufacturer of the projector, and through LoRa low-frequency wireless communication technology and through the LoRa receiving/transmitting chip module, receive execution commands issued by a control transmitting panel or an electronic device To enable the projector to turn on, turn off, switch the input source, etc., and synchronously forward the application instructions to the screen control module of one electric screen using LoRa low-frequency wireless communication technology; WiFi architecture transmits the current status of the projector back to a cloud server via WiFi network; the curtain control module is used to receive the synchronization signal forwarded by the multi-function control host, which can be synchronized when the projector is turned on Put down the electric curtain, synchronously close the electric curtain when the projector is turned off, or pause the lifting of the curtain during the action of the electric curtain; the control launch panel, which is used to send key execution commands, via LoRa low-frequency wireless communication technology And connect via LoRa The receive/transmit chip module sends a message to the multi-function control host to execute the serial commands stored in the field corresponding to the key position in the host system; and the cloud server is used to integrate all The current status information returned by the multi-function control host, and allows the electronic device to log in and manage with web page permissions; where the multi-function host, the screen control module, and the device of the control launch panel are all equipped with address pads ( Dip switch), in use, the address paddle must be transferred to the same group for group linkage. A total of 001~255 groups of communication address range can be dialed.

In an embodiment of the present invention, the multifunctional host, the curtain control module, and the control transmitting panel are all connected using a new generation of wireless transmission technology (Low Power Wide Area Network, LPWAN) wireless communication technology, referred to as LoRa for short.

In an embodiment of the invention, the multi-function control host can further return the status information of the projector to the cloud server management system of the cloud server.

In order to achieve the above object, the present invention also provides a projector control management system, which can be wirelessly transmitted to each receiving device according to the set command to make it act according to the command; the projector control management system includes: a multi-function The control host, which is used to store various serial commands provided by the manufacturer of the projector, and receives the signal sent by a control transmitting panel or an electronic device via LoRa low-frequency wireless communication technology and through the LoRa receiving/transmitting chip module Execute instructions to make the projector turn on, turn off, input source switching, etc., and synchronously forward the application instructions to the curtain control module of an electric curtain using LoRa low-frequency wireless communication technology; The current status of the projector is transmitted back to a cloud server through the WiFi network through the on-site WiFi architecture; the curtain control module is used to receive the synchronization signal forwarded by the multi-function control host, which can operate the projector to turn on Time-synchronized put down the electric curtain, the projector is synchronized when the machine is turned off Close the electric curtain, or pause the lifting of the curtain during the operation of the electric curtain; the control launch panel, which is used to send key execution commands, send messages via LoRa low-frequency wireless communication technology and through the LoRa receive/transmit chip module Send to the multi-function control host to execute the serial commands stored in the field corresponding to the key position in the host system; and the cloud server, which is used to integrate the current status of all multi-function control host return Information, and allows the electronic device to log in and manage with web page permissions; when the cloud server receives an abnormal message from the projector device, the cloud server will issue a warning to the electronic device to facilitate users or The administrator can quickly check the projector equipment, and can also manage a single projector or multiple projectors at a time through the control program.

In an embodiment of the present invention, the multifunctional host, the curtain control module, and the control transmitting panel are all connected using a new generation of wireless transmission technology (Low Power Wide Area Network, LPWAN) wireless communication technology, referred to as LoRa for short.

In an embodiment of the invention, the multi-function control host can further return the status information of the projector to the cloud server management system of the cloud server.

9: Electric curtain

10: Projector

11: WiFi network transmission

12: LoRa low frequency wireless communication technology

13: Cloud server

21: Multi-function control host

22: LoRa receiving/transmitting chip module

23: Curtain control module

24: control launch panel

25:12V power supply

26: Install keyhole on the back

31: Electronic device

51: Projector control program

52: Single projector

53: Multiple projectors

FIG. 1 is a block diagram of the projector control management system of the present invention.

2 is a schematic diagram of the connection between the multi-function control host and the projector of the present invention.

3 is a schematic diagram of the connection between the curtain control module and the electric curtain of the present invention.

4 is a schematic view of the installation of the control launch panel of the present invention.

5 is a schematic diagram of the parameter setting interface of the multi-function control host of the present invention.

FIG. 6 is a schematic diagram of a cloud server parameter setting interface of the present invention.

7 is a schematic diagram of the multi-function control host of the present invention connected to a cloud server via an electronic device.

First, as shown in FIGS. 1 to 3, it provides a block diagram of a projector control management system, a schematic diagram of a multi-function control host connected to a projector, and a schematic diagram of a curtain control module connected to an electric curtain. The invention provides a long-distance projector control and management system, which can be wirelessly transmitted to each receiving device according to the set command to make it act according to the command; the projector control and management system includes: a multi-function control host 21, which It is used to store various serial commands provided by the manufacturer of the projector 10, and is received via a LoRa low-frequency wireless communication technology 12, and is sent by a control transmitting panel 24 or an electronic device 31 (such as a computer, a mobile phone, etc.) Execute the command to make the projector 10 turn on, off, switch the input source, etc., and synchronously forward the application command using LoRa low-frequency wireless communication technology 12 to a screen control mode of an electric screen 9 Group 23; In addition, the current status of the projector can be transmitted to a cloud server 13 via WiFi network transmission 11 via the on-site WiFi architecture; the curtain control module 23, which is used to receive forwarding from the multi-function control host 21 The synchronous signal can operate the projector 10 to synchronously put down the electric curtain 9 when the projector 10 is turned on, and to close the electric curtain 9 synchronously when the projector 10 is turned off, or to suspend the lifting of the curtain during the operation of the electric curtain 9; the control launch The panel 24 is used to send a key execution command, send a message to the multi-function control host 21 through the LoRa low-frequency wireless communication technology 12 and through the LoRa receiving/transmitting chip module 22, so that its execution is stored in the host system in accordance with the key position The serial command set in the corresponding field; and the cloud server 13, which is used to integrate the current status information returned by all the multi-function control hosts 21, and can enable the electronic device 31 to log in and manage with webpage authority.

In an embodiment of the present invention, the multi-function control host 21, the curtain control module 23, and the device at the end of the control emission panel 24 are all provided with an address switch (Dip switch). In use, the address pad must be transferred to the same group for group linkage. A total of 001~255 groups of communication address range can be dialed.

In addition, please refer to FIG. 2 as well, which is a schematic diagram of the connection between the multi-function control host of the present invention and the projector. Among them, if the multi-function control host 21 of the present invention does not have WiFi network transmission on site, It is necessary to first connect the multi-function control host 21 to the electronic device 31, enter the application parameter setting interface, and input the relevant control serial commands such as the projector 10 power on, power off, each signal source, etc. in the designated field. At the same time, please refer to FIG. 3 again, which is a schematic diagram of the connection between the curtain control module of the present invention and the electric curtain, usually according to the curtain control module 23 of the present invention, in the part of the curtain control module 23, Connect the up/stop/down lines extended by the electric curtain 9 to the corresponding fast contacts in the curtain control module 23, and then connect the 110V power supply to complete the curtain control module 23 and the electric curtain 9 connections work.

Please also refer to FIG. 4, which is a schematic diagram of the installation of the control emission panel. The control emission panel 24 of the present invention includes a plurality of buttons on the front of the control emission panel 24, wherein the number of buttons is preferably 9, The 9 buttons correspond to 9 button numbers, which are the projection mechanism of button 1, the projector of button 2 is turned on, the screen of button 3, the HDMI of button 4, the VGA of button 5, and the screen of button 6 are stopped. , Button 7, button 8, button 9 and other button numbers under the curtain, and the back further includes a plurality of back mounting keyholes 26; wherein, the control launch panel 24 can use the back mounting keyhole 26 to fix any desired The installation position and the front button position correspond to the control serial command field input when setting the setting page of the multi-function control host 21 mentioned above. When the front button is pressed, the control transmitting panel 24 will use LoRa low-frequency wireless communication technology 12 and send a message to the multi-function control host 21 through the LoRa receiving/transmitting chip module 22 to execute the input in the field of the button in the system Control serial commands (refer to Figure 5).

Please refer to FIG. 5 again, which is a schematic diagram of the parameter setting interface of the multi-function control host. After the multi-function control host 21 is connected to the electronic device 31, it will enter the application parameter setting interface, and then use a short jumper to connect A quick interface on the TXD/RXD/GND of the control unit of the projector 10 and the multi-function control host 21. When the 12V power supply is connected in parallel, the connection between the multi-function control host 21 and the projector 10 is completed (refer to Fig. 2 in the example), so that the parameter setting can correspond to the key number of the control transmitting panel 24 to communicate the command. .

Generally, according to the present invention, in the control management system, devices such as a multi-function control host 21, a curtain control module 23, and a control launch panel 24 are provided. These devices are all equipped with 8-Position Dip switch. In use, the address paddles must be transferred to the same group for group linkage.

Please also refer to FIG. 6, which is a schematic diagram of the cloud server parameter setting interface. The user enters the cloud server 13 through webpage login to check the current status of the projector 10 in the system. The control program manages a single projector 52 or multiple projectors 53 at a time. The projector 10 in all systems can be turned off at once by setting a unified shutdown time, so as to avoid the waste of energy and equipment life due to forgetting or neglect, and thus achieve the goals of remote management and energy saving and environmental protection. Finally, in the section about cloud server 13, users can view their own device list in a privileged way and can manage it hierarchically, and the status of the device will be displayed in the status field on the system page. Status, and you can set a unified shutdown time in the pre-action (refer to Figure 6 for example).

Please also refer to FIG. 7 together, and with the permission of the WiFi network transmission 11 environment on site, use the electronic device 31 to connect the multi-function control host 21 with the environment of the on-site WiFi network transmission 11 properly. Connect to the cloud server 13 (refer to step 1 in Figure 7 of the example). On the page, first select the brand and model of the corresponding projector 10 (refer to step 2 in Figure 7 of the example), and press After confirming the model, you will enter the page for downloading the control serial code. After clicking the corresponding key number on the control launch panel 24 (refer to step 3 in Figure 7), you can select the control serial code that can be input (refer to the example Figure 5). After finally clicking the setting completion key, the work of setting the multi-function control host 21 by cloud connection is completed.

10: Projector

11: WiFi network transmission

12: LoRa low frequency wireless communication technology

13: Cloud server

21: Multi-function control host

22: LoRa receiving/transmitting chip module

23: Curtain control module

24: control launch panel

31: Electronic device

51: Projector control program

52: Single projector

53: Multiple projectors

Claims (6)

A projector control and management system, which can be wirelessly transmitted to each receiving device according to the set command to make it act according to the command; the projector control and management system includes: a multi-function control host, which is used to store the projector's Various serial commands provided by the manufacturer, and through LoRa low-frequency wireless communication technology and through the LoRa receiving/transmitting chip module, receive execution commands issued by a control transmitting panel or an electronic device end, so that the projector is turned on , Shutdown, input source switching, etc., and synchronously forward the application instructions to the curtain control module of an electric curtain using LoRa low-frequency wireless communication technology; in addition, the current status of the projector can be WiFi network transmission back to a cloud server; the curtain control module, which is used to receive the synchronization signal forwarded by the multi-function control host, can operate the projector to synchronously put down the electric curtain when the projector is turned on, the projector The electric curtain is closed at the time of shutdown, or the lifting of the curtain is suspended during the operation of the electric curtain; the control launch panel is used to send key execution commands, and receives/transmits the chip model through LoRa via LoRa low-frequency wireless communication technology The group sends a message to the multi-function control host to execute the serial commands stored in the field corresponding to the key position in the host system; and the cloud server is used to integrate all the multi-function control hosts. The current status information is transmitted, and the electronic device can log in and manage with the web page authority. Among them, the multi-function host, the screen control module, and the device of the control launch panel are all equipped with a Dip switch. In use, the address pad must be transferred to the same group Only then can the group be linked, a total of 001~255 groups of communication address range can be dialed. The projector control management system according to item 1 of the patent application scope, in which the multi-function host, the screen control module, and the control launch panel end all use a new generation of wireless transmission technology (Low PowerWide Area Network, LPWAN) wireless communication Technical connection, referred to as LoRa. According to the projector control management system of claim 1, the multi-function control host can further return the status information of the projector to the cloud server management system of the cloud server. A long-distance projector control and management system, which can be wirelessly transmitted to each receiving device according to the set command to make it act according to the command; the projector control and management system includes: a multi-function control host, which is used to store Various serial commands provided by the manufacturer of the projector, and through LoRa low-frequency wireless communication technology and through the LoRa receiving/transmitting chip module, receive the execution command issued by a control transmitting panel or an electronic device to make the projector Achieve functions such as power on, power off, input source switching, etc., and synchronously forward application instructions using LoRa low frequency wireless communication technology to a curtain control module of an electric curtain; the projector can also be transmitted via the on-site WiFi architecture The current status is transmitted back to a cloud server via WiFi network; the curtain control module is used to receive the synchronization signal forwarded by the multi-function control host, which can act to put down the electric curtain synchronously when the projector is turned on , When the projector is turned off, the electric curtain is closed at the same time, or the lifting of the curtain is suspended during the operation of the electric curtain; the control launch panel is used to send key execution commands, and receives through LoRa via LoRa low-frequency wireless communication technology/ The transmitter chip module sends the message to the multi-function control host to make it execute The serial commands stored in the field corresponding to the key position in the host system are stored; and the cloud server is used to integrate the current status information returned by all multi-function control hosts and allow the electronic device to use the web page Access management by means of authority; when the cloud server receives an abnormal message from the projector device, the cloud server will issue a warning reminder to the electronic device to facilitate the user or administrator to quickly view the projector device. You can manage a single projector or multiple projectors at a time through the control program. According to the projector control item 4 of the patent application scope, the multi-function host, the screen control module, and the control launch panel end all use a new generation of wireless transmission technology (Low PowerWide Area Network, LPWAN) wireless communication Technical connection, referred to as LoRa. According to the projector control and management system of claim 4, the multi-function control host can further return the status information of the projector to the cloud server management system of the cloud server.

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