CN210575039U - Double-screen intelligent interaction system - Google Patents
Double-screen intelligent interaction system Download PDFInfo
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- CN210575039U CN210575039U CN201921641736.1U CN201921641736U CN210575039U CN 210575039 U CN210575039 U CN 210575039U CN 201921641736 U CN201921641736 U CN 201921641736U CN 210575039 U CN210575039 U CN 210575039U
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Abstract
The utility model relates to a double-screen intelligent interaction system, which comprises a main screen device and an auxiliary screen device, wherein the main screen device is provided with a main screen CPU, a main screen backlight circuit and a main screen power supply circuit, and the auxiliary screen device is provided with an auxiliary screen backlight circuit; the first output end of the main screen power supply circuit is respectively and electrically connected with the power supply end of the main screen backlight circuit and the power supply end of the auxiliary screen backlight circuit; the backlight starting-up signal output end of the main screen CPU is respectively and electrically connected with the backlight starting-up signal input end of the main screen backlight circuit and the backlight starting-up signal input end of the secondary screen backlight circuit, and is used for sending a backlight starting-up signal to drive the main screen backlight circuit and the secondary screen backlight circuit to work when receiving the main screen driving signal. The utility model discloses a main screen CPU is to main screen backlight circuit and vice screen backlight circuit simultaneous control, sends the start signal in a poor light to main screen backlight circuit and vice screen backlight circuit simultaneously when main screen CPU receives main screen drive signal, realizes the drive in a poor light in step.
Description
Technical Field
The utility model relates to an intelligent terminal technical field especially relates to a double screen intelligent interaction system.
Background
At present, along with the upgrading of intelligent terminal technology, intelligent terminal's application scene is also increasingly extensive, and wherein intelligent interaction flat board often uses in scenes such as teaching, meeting, official working, to some to the great scene of screen size demand, still can use the concatenation of a plurality of intelligent interaction flat boards to use.
However, when the intelligent interactive flat panel is spliced for use, most of the traditional double-splicing scheme is that the display screens of two devices are spliced together, but the two devices work independently, and the backlight of the two devices cannot be synchronously started, so that the pictures can have differences.
SUMMERY OF THE UTILITY MODEL
Based on this, there is a need for a dual-screen intelligent interactive system capable of implementing synchronous backlighting.
A double-screen intelligent interaction system comprises a main screen device and an auxiliary screen device, wherein the main screen device is provided with a main screen CPU, a main screen backlight circuit and a main screen power supply circuit, and the auxiliary screen device is provided with an auxiliary screen backlight circuit;
the first output end of the main screen power supply circuit is respectively and electrically connected with the power supply end of the main screen backlight circuit and the power supply end of the auxiliary screen backlight circuit;
the backlight starting-up signal output end of the main screen CPU is respectively and electrically connected with the backlight starting-up signal input end of the main screen backlight circuit and the backlight starting-up signal input end of the secondary screen backlight circuit, and is used for sending a backlight starting-up signal to drive the main screen backlight circuit and the secondary screen backlight circuit to work when receiving the main screen driving signal.
In one embodiment, the main screen device is provided with a main screen MCU and a wake-up signal receiving circuit, and the auxiliary screen device is provided with an auxiliary screen CPU, an auxiliary screen MCU and an auxiliary screen power supply circuit;
the second output end of the main screen power supply circuit is electrically connected with the power supply end of the main screen CPU, and the third output end of the main screen power supply circuit is electrically connected with the power supply end of the main screen MCU and used for supplying power to the main screen CPU and the main screen MCU when the power supply is switched on;
the driving signal output end of the main screen MCU is respectively and electrically connected with the driving signal input end of the main screen CPU and is used for sending a main screen driving signal to drive the main screen CPU to be electrified when receiving the awakening signal;
the driving signal input end of the auxiliary screen MCU and the driving signal input end of the main screen MCU are both electrically connected with the awakening signal output circuit, and the driving signal output end of the auxiliary screen MCU is electrically connected with the driving signal input end of the auxiliary screen CPU and used for sending an auxiliary screen driving signal to drive the auxiliary screen CPU to be electrified when the awakening signal is received;
and the first output end of the auxiliary screen power supply circuit is electrically connected with the power supply end of the auxiliary screen CPU, and the second output end of the auxiliary screen power supply circuit is electrically connected with the power supply end of the auxiliary screen MCU and used for supplying power to the auxiliary screen CPU and the auxiliary screen MCU when the power supply is switched on.
In one embodiment, the main screen device is further provided with a first relay; the auxiliary screen device is also provided with an OR gate circuit;
the input end of the first relay is used for being electrically connected with a power supply through an alternating current signal interface of the main screen device, and the output end of the first relay is electrically connected with an alternating current signal input end of the auxiliary screen power supply circuit;
the first output end of the main screen MCU is electrically connected with the controlled end of the first relay and is used for driving the first relay to be conducted when receiving the awakening signal;
the fourth output end of the main screen power supply circuit is electrically connected with the power supply end of the auxiliary screen MCU through the first end of the OR gate circuit and used for supplying power to the auxiliary screen MCU when the first relay is not conducted;
and the second output end of the auxiliary screen power supply circuit is electrically connected with the power supply end of the auxiliary screen MCU through the second end of the OR gate circuit and is used for supplying power to the auxiliary screen CPU and the auxiliary screen MCU when the first relay is switched on.
In one embodiment, the main screen power supply circuit is provided with a second relay and a main screen power supply board,
the input end of the second relay is electrically connected with the second output end of the main screen power panel, the output end of the second relay is electrically connected with the power supply end of the main screen CPU,
the input end of the main screen power panel is used for being electrically connected with a power supply through an alternating current signal interface of the main screen device and supplying power to the main screen CPU when the power supply is switched on and the second relay is switched on;
the output end of the second relay is a second output end of the main screen power supply circuit; the first output end of the main screen power supply board is the first output end of the main screen power supply circuit, the third output end of the main screen power supply board is the third output end of the main screen power supply circuit, and the fourth output end of the main screen power supply board is the fourth output end of the main screen power supply circuit;
and the second output end of the main screen MCU is electrically connected with the controlled end of the second relay and is used for driving the second relay to be switched on when receiving the awakening signal.
In one embodiment, the auxiliary screen power supply circuit is provided with a third relay and an auxiliary screen power supply board,
the input end of the third relay is electrically connected with the first output end of the auxiliary screen power panel, and the output end of the third relay is electrically connected with the power supply end of the auxiliary screen CPU;
the input end of the auxiliary screen power supply board is used for being electrically connected with the output end of the first relay and supplying power to the auxiliary screen CPU when the first relay is conducted and the third relay is conducted;
the output end of the third relay is the first output end of the auxiliary screen power supply circuit; the second output end of the auxiliary screen power supply board is the second output end of the auxiliary screen power supply circuit;
and the first output end of the auxiliary screen MCU is electrically connected with the controlled end of the third relay and is used for driving the third relay to be switched on when receiving the awakening signal.
In one embodiment, the wake-up signal output circuit includes an infrared signal receiving circuit,
the infrared signal receiving circuit is respectively and electrically connected with the first input end of the main screen MCU and the first input end of the auxiliary screen MCU and is used for sending a wake-up signal to the main screen MCU and the auxiliary screen MCU when receiving an infrared signal.
In one embodiment, the wake-up signal output circuit includes a first hall sensor;
the first Hall sensor is respectively electrically connected with the second input end of the main screen MCU and the second input end of the auxiliary screen MCU and used for sending a wake-up signal to the main screen MCU and the auxiliary screen MCU when detecting the change of magnetic flux.
In one embodiment, the secondary screen device is provided with a second Hall sensor;
and the second Hall sensor is respectively electrically connected with the third input end of the main screen MCU and the third input end of the auxiliary screen MCU and is used for sending a wake-up signal to the main screen MCU and the auxiliary screen MCU when detecting the change of the magnetic flux.
In one embodiment, the main screen device is further provided with a main screen driving circuit,
and the screen driving signal output end of the main screen CPU is electrically connected with the screen driving signal input end of the main screen driving circuit and used for sending the main screen driving signal to drive the main screen driving circuit to be electrified when receiving the main screen driving signal.
In one embodiment, the auxiliary screen device is further provided with an auxiliary screen driving circuit,
and the screen driving signal output end of the auxiliary screen CPU is electrically connected with the screen driving signal input end of the auxiliary screen driving circuit and used for sending an auxiliary screen driving signal to drive the auxiliary screen driving circuit to be electrified when the auxiliary screen driving signal is received.
According to the double-screen intelligent interaction system, the main screen power supply circuit supplies power to the main screen backlight circuit and the auxiliary screen backlight circuit at the same time, the main screen CPU controls the main screen backlight circuit and the auxiliary screen backlight circuit at the same time, and the main screen CPU receives the main screen driving signal and simultaneously sends the backlight starting signal to the main screen backlight circuit and the auxiliary screen backlight circuit, so that synchronous backlight driving is realized.
Drawings
FIG. 1 is a block diagram of a synchronous backlight structure of a dual-screen intelligent interactive system in an embodiment;
FIG. 2 is a block diagram of a synchronous wake-up structure of a dual-screen intelligent interactive system in an embodiment;
FIG. 3 is a block diagram of a power supply architecture of a dual-screen intelligent interactive system in one embodiment;
FIG. 4 is a block diagram of a main screen power supply circuit according to an embodiment;
FIG. 5 is a block diagram of a secondary screen power supply circuit in one embodiment;
fig. 6 is a block diagram of a synchronous wake-up structure of a dual-screen intelligent interactive system in another embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In one embodiment, as shown in fig. 1, a dual-screen intelligent interactive system is provided, which includes a main screen device 100 and an auxiliary screen device 200, wherein the main screen device 100 is provided with a main screen CPU110, a main screen backlight circuit 160 and a main screen power supply circuit 140, and the auxiliary screen device 200 is provided with an auxiliary screen backlight circuit 250;
a first output end of the main-screen power supply circuit 140 is electrically connected with a power supply end of the main-screen backlight circuit 160 and a power supply end of the secondary-screen backlight circuit 250 respectively;
the backlight power-on signal output end of the main screen CPU110 is electrically connected to the backlight power-on signal input end of the main screen backlight circuit 160 and the backlight power-on signal input end of the sub-screen backlight circuit 250, respectively, and is configured to send a backlight power-on signal to drive the main screen backlight circuit 160 and the sub-screen backlight circuit 250 to operate when receiving the main screen driving signal.
The main screen CPU110 is a processor of the main screen apparatus 100, and is turned off in standby, and is powered on to operate when receiving a main screen driving signal; the sub-screen CPU210 is a processor of the sub-screen apparatus 200, and is turned off in standby, and is powered on to operate when receiving a sub-screen driving signal.
The main screen device 100 and the auxiliary screen device 200 are both intelligent interactive flat plates, and a display flat plate of the dual-screen intelligent interactive system is formed by splicing the display flat plates of the main screen device 100 and the auxiliary screen device 200, wherein the intelligent interactive flat plate (IIP) is an integrated device for controlling contents displayed on the display flat plate (LCD, LED, PDP) and realizing human-computer interactive operation through a touch technology.
In the dual-screen intelligent interactive system, the main screen power supply circuit 140 supplies power to the main screen backlight circuit 160 and the auxiliary screen backlight circuit 250 at the same time, the main screen CPU110 controls the main screen backlight circuit 160 and the auxiliary screen backlight circuit 250 at the same time, and when the main screen CPU110 receives a main screen driving signal, the main screen backlight circuit 160 and the auxiliary screen backlight circuit 250 simultaneously transmit a backlight starting signal to realize synchronous backlight driving.
In one embodiment, as shown in fig. 2, the main screen device 100 is provided with a main screen MCU120 and a wake-up signal receiving circuit, and the auxiliary screen device 200 is provided with an auxiliary screen CPU210, an auxiliary screen MCU220 and an auxiliary screen power supply circuit;
the second output end of the main screen power supply circuit 140 is electrically connected with the power supply end of the main screen CPU110, and the third output end is electrically connected with the power supply end of the main screen MCU120, and is used for supplying power to the main screen CPU110 and the main screen MCU120 when the power supply is turned on;
the driving signal output end of the main screen MCU120 is respectively electrically connected with the driving signal input end of the main screen CPU110 and is used for sending a main screen driving signal to drive the main screen CPU110 to be electrified when receiving the wake-up signal;
the driving signal input end of the auxiliary screen MCU220 and the driving signal input end of the main screen MCU120 are both electrically connected with the wake-up signal output circuit 130, and the driving signal output end is electrically connected with the driving signal input end of the auxiliary screen CPU210 and used for sending an auxiliary screen driving signal to drive the auxiliary screen CPU210 to be electrified when receiving the wake-up signal;
the first output end of the auxiliary screen power supply circuit is electrically connected with the power supply end of the auxiliary screen CPU210, and the second output end of the auxiliary screen power supply circuit is electrically connected with the power supply end of the auxiliary screen MCU220 and used for supplying power to the auxiliary screen CPU210 and the auxiliary screen MCU220 when the power supply is switched on.
The main screen CPU110 is switched off in standby, the main screen MCU120 continues to work in standby, and sends a main screen driving signal to the main screen CPU110 when receiving the wake-up signal so as to drive the main screen CPU110 to work in power-on mode; the sub-screen CPU210 is turned off in standby, the sub-screen MCU220 continues to operate in standby, and transmits a sub-screen driving signal to the sub-screen CPU210 when receiving the wake-up signal, so as to drive the sub-screen CPU210 to operate electrically. The driving signal input end of the auxiliary screen MCU220 and the driving signal input end of the main screen MCU120 are both electrically connected with the wake-up signal output circuit 130, so that the main screen MCU120 and the auxiliary screen MCU220 can simultaneously receive wake-up signals, the main screen driving signal of the main screen MCU120 and the auxiliary screen driving signal of the auxiliary screen MCU220 can be simultaneously transmitted, the main screen CPU110 and the auxiliary screen CPU210 are triggered to be powered on to work, and the synchronous wake-up of the main screen device 100 and the auxiliary screen device 200 is realized.
In one embodiment, as shown in fig. 3, the main screen device 100 is further provided with a first relay 150; the sub-screen device 200 is further provided with an or gate circuit 230;
the input end of the first relay 150 is used for being electrically connected with a power supply through an alternating current signal interface ACIN of the main screen device 100, and the output end of the first relay is electrically connected with an alternating current signal input end of the auxiliary screen power supply circuit;
a first output end of the main screen MCU120 is electrically connected to a controlled end of the first relay 150, and is configured to drive the first relay 150 to be turned on when receiving the wake-up signal;
the fourth output end of the main screen power supply circuit 140 is electrically connected with the power supply end of the auxiliary screen MCU220 through the first end of the OR gate circuit 230, and is used for supplying power to the auxiliary screen MCU220 when the first relay 150 is not conducted;
the second output end of the secondary screen power supply circuit is electrically connected with the power supply end of the secondary screen MCU220 through the second end of the OR gate circuit 230, and is used for supplying power to the secondary screen CPU210 and the secondary screen MCU220 when the first relay 150 is switched on.
The main screen power supply circuit 140 is used for supplying power to the main screen CPU110, the main screen MCU120 and each functional circuit in the main screen device 100 when the power supply is switched on, and simultaneously provides a working power supply for the auxiliary screen MCU220 when the first relay 150 is not switched on, and the auxiliary screen power supply circuit is not switched on when the first relay 150 is not switched on, and is only supplied with power by the main screen power supply circuit 140, so that the power consumption of the dual-screen intelligent interactive system during standby can be reduced. When the main screen MCU120 and the auxiliary screen MCU220 receive the wake-up signal, the main screen MCU120 drives the first relay 150 to be conducted, a power supply source is switched on for the auxiliary screen power supply circuit, at the moment, the auxiliary screen MCU220 is powered by the auxiliary screen power supply circuit, the auxiliary screen power supply circuit is also used for supplying power for all functional circuits in the auxiliary screen CPU210 and the auxiliary screen device 200, the main screen power supply circuit 140 and the auxiliary screen power supply circuit are respectively electrically connected with the auxiliary screen MCU220 through the OR gate circuit 230, and only any one of the main screen power supply circuit 140 and the auxiliary screen power supply circuit is required to be switched on to supply power to the auxiliary screen MCU 220.
In one embodiment, as shown in fig. 4, the main screen power supply circuit 140 is provided with a second relay 142 and a main screen power supply board 141,
the input terminal of the second relay 142 is electrically connected to the second output terminal of the main screen power supply board 141, the output terminal is electrically connected to the power supply terminal of the main screen CPU110,
the input end of the main screen power board 141 is used for being electrically connected with a power supply through an alternating current signal interface ACIN of the main screen device 100, and is used for supplying power to the main screen CPU110 when the power supply is switched on and the second relay 142 is switched on;
the output end of the second relay 142 is a second output end of the main screen power supply circuit 140; the first output end of the main screen power supply board 141 is the first output end of the main screen power supply circuit 140, the third output end is the third output end of the main screen power supply circuit 140, and the fourth output end is the fourth output end of the main screen power supply circuit 140;
the second output end of the main screen MCU120 is electrically connected to the controlled end of the second relay 142, and is configured to drive the second relay 142 to be turned on when receiving the wake-up signal.
In order to ensure that the main screen CPU110 is not started by mistake in the standby state, the second relay 142 is arranged for electrically connecting the power terminals of the main screen power board 141 and the main screen CPU110, so that the main screen CPU110 can be powered on only after the main screen MCU120 needs to drive the main screen CPU110 and the second relay 142 to be turned on respectively when receiving the wake-up signal, thereby avoiding the main screen CPU110 from being started by mistake.
In one embodiment, as shown in fig. 5, the sub-screen power supply circuit is provided with a third relay 242 and a sub-screen power supply board 241,
an input end of the third relay 242 is electrically connected with a first output end of the auxiliary screen power supply board 241, and an output end is electrically connected with a power supply end of the auxiliary screen CPU 210;
the input end of the auxiliary screen power supply board 241 is used for being electrically connected with the output end of the first relay 150 and supplying power to the auxiliary screen CPU210 when the first relay 150 is turned on and the third relay 242 is turned on;
the output end of the third relay 242 is a first output end of the auxiliary screen power supply circuit; a second output end of the secondary screen power supply board 241 is a second output end of the secondary screen power supply circuit;
the first output end of the auxiliary screen MCU220 is electrically connected to the controlled end of the third relay 242, and is configured to drive the third relay 242 to be turned on when receiving the wake-up signal.
In order to ensure that the auxiliary screen CPU210 cannot be started by mistake in the standby state, the third relay 242 is provided for electrically connecting the auxiliary screen power board 241 and the power ends of the auxiliary screen CPU210, so that the auxiliary screen CPU210 can be powered on only after the auxiliary screen MCU220 needs to drive the auxiliary screen CPU210 and the third relay 242 to be turned on respectively when receiving the wake-up signal, thereby avoiding the auxiliary screen CPU210 from being started by mistake.
In one embodiment, as shown in fig. 6, the wake-up signal output circuit 130 includes an infrared signal receiving circuit 131,
the infrared signal receiving circuit 131 is electrically connected to the first input terminal of the main screen MCU120 and the first input terminal of the auxiliary screen MCU220, respectively, and is configured to send a wake-up signal to the main screen MCU120 and the auxiliary screen MCU220 when receiving the infrared signal.
The infrared signal receiving circuit 131 is configured to receive an infrared signal sent by an infrared remote controller, and if the infrared signal is received in a standby state, send a wake-up signal to the main screen MCU120 and the auxiliary screen MCU220, so as to synchronously wake up the main screen device 100 and the auxiliary screen device 200.
In one embodiment, the wake-up signal output circuit 130 includes a first hall sensor;
the first hall sensor is electrically connected with the second input end of the main screen MCU120 and the second input end of the auxiliary screen MCU220, respectively, and is configured to send a wake-up signal to the main screen MCU120 and the auxiliary screen MCU220 when detecting a change in magnetic flux.
The first hall sensor is used for sending a wake-up signal to the main screen MCU120 and the sub-screen MCU220 in a standby state if a magnetic flux changes due to a touch of a stylus, so as to wake up the main screen device 100 and the sub-screen device 200 synchronously.
In one embodiment, the sub-screen device 200 is provided with a second hall sensor;
the second hall sensor is electrically connected to a third input terminal of the main screen MCU120 and a third input terminal of the auxiliary screen MCU220, respectively, and is configured to send a wake-up signal to the main screen MCU120 and the auxiliary screen MCU220 when detecting a change in magnetic flux.
The second hall sensor is configured to send a wake-up signal to the main screen MCU120 and the sub-screen MCU220 in a standby state if a magnetic flux changes due to a touch of the stylus pen, so as to synchronously wake up the main screen device 100 and the sub-screen device 200.
In one embodiment, the main screen device 100 is further provided with a main screen driving circuit,
the screen driving signal output end of the main screen CPU110 is electrically connected to the screen driving signal input end of the main screen driving circuit, and is configured to send a main screen driving signal to drive the main screen driving circuit to power on when receiving the main screen driving signal.
When the main screen CPU110 receives the main screen driving signal sent by the main screen MCU120, the main screen CPU110 powers on, and simultaneously sends the main screen driving signal to the main screen driving circuit to drive the main screen driving circuit to power on and operate, and start display.
In one embodiment, the sub-screen device 200 is further provided with a sub-screen driving circuit,
the screen driving signal output end of the secondary screen CPU210 is electrically connected to the screen driving signal input end of the secondary screen driving circuit, and is configured to send a secondary screen driving signal to drive the secondary screen driving circuit to power up when receiving the secondary screen driving signal.
When the auxiliary screen CPU210 receives the auxiliary screen driving signal sent by the auxiliary screen MCU220, the auxiliary screen CPU210 is powered on, and simultaneously sends the auxiliary screen driving signal to the auxiliary screen driving circuit to drive the auxiliary screen driving circuit to power on and operate, and start display.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A double-screen intelligent interaction system is characterized by comprising a main screen device and an auxiliary screen device, wherein the main screen device is provided with a main screen CPU, a main screen backlight circuit and a main screen power supply circuit, and the auxiliary screen device is provided with an auxiliary screen backlight circuit;
the first output end of the main screen power supply circuit is electrically connected with the power supply end of the main screen backlight circuit and the power supply end of the auxiliary screen backlight circuit respectively;
and the backlight starting-up signal output end of the main screen CPU is respectively and electrically connected with the backlight starting-up signal input end of the main screen backlight circuit and the backlight starting-up signal input end of the auxiliary screen backlight circuit, and is used for sending a backlight starting-up signal to drive the main screen backlight circuit and the auxiliary screen backlight circuit to work when receiving a main screen driving signal.
2. The dual-screen intelligent interaction system of claim 1, wherein the main screen device is provided with a main screen MCU and a wake-up signal receiving circuit, and the auxiliary screen device is provided with an auxiliary screen CPU, an auxiliary screen MCU and an auxiliary screen power supply circuit;
the second output end of the main screen power supply circuit is electrically connected with the power supply end of the main screen CPU, and the third output end of the main screen power supply circuit is electrically connected with the power supply end of the main screen MCU and used for supplying power to the main screen CPU and the main screen MCU when the power supply is switched on;
the driving signal output end of the main screen MCU is respectively and electrically connected with the driving signal input end of the main screen CPU, and is used for sending the main screen driving signal to drive the main screen CPU to be electrified when receiving the awakening signal;
the driving signal input end of the auxiliary screen MCU and the driving signal input end of the main screen MCU are both electrically connected with the awakening signal output circuit, and the driving signal output end is electrically connected with the driving signal input end of the auxiliary screen CPU and used for sending an auxiliary screen driving signal to drive the auxiliary screen CPU to be electrified when the awakening signal is received;
and the first output end of the auxiliary screen power supply circuit is electrically connected with the power end of the auxiliary screen CPU, and the second output end of the auxiliary screen power supply circuit is electrically connected with the power end of the auxiliary screen MCU and used for supplying power to the auxiliary screen CPU and the auxiliary screen MCU when the power supply is switched on.
3. The dual-screen intelligent interaction system of claim 2, wherein the main screen device is further provided with a first relay; the auxiliary screen device is also provided with an OR gate circuit;
the input end of the first relay is electrically connected with a power supply through an alternating current signal interface of the main screen device, and the output end of the first relay is electrically connected with an alternating current signal input end of the auxiliary screen power supply circuit;
a first output end of the main screen MCU is electrically connected with a controlled end of the first relay and is used for driving the first relay to be conducted when the wake-up signal is received;
the fourth output end of the main screen power supply circuit is electrically connected with the power supply end of the auxiliary screen MCU through the first end of the OR gate circuit and is used for supplying power to the auxiliary screen MCU when the first relay is not conducted;
and a second output end of the auxiliary screen power supply circuit is electrically connected with a power supply end of the auxiliary screen MCU through a second end of the OR gate circuit and is used for supplying power to the auxiliary screen CPU and the auxiliary screen MCU when the first relay is switched on.
4. The dual-screen intelligent interactive system according to claim 3, wherein the main screen power supply circuit is provided with a second relay and a main screen power supply board,
the input end of the second relay is electrically connected with the second output end of the main screen power supply board, the output end of the second relay is electrically connected with the power supply end of the main screen CPU,
the input end of the main screen power panel is used for being electrically connected with the power supply through an alternating current signal interface of the main screen device and supplying power to the main screen CPU when the power supply is switched on and the second relay is switched on;
the output end of the second relay is a second output end of the main screen power supply circuit; the first output end of the main screen power supply board is the first output end of the main screen power supply circuit, the third output end of the main screen power supply board is the third output end of the main screen power supply circuit, and the fourth output end of the main screen power supply board is the fourth output end of the main screen power supply circuit;
and the second output end of the main screen MCU is electrically connected with the controlled end of the second relay and is used for driving the second relay to be switched on when receiving the awakening signal.
5. The dual-screen intelligent interactive system of claim 4, wherein the secondary screen power supply circuit is provided with a third relay and a secondary screen power panel,
the input end of the third relay is electrically connected with the first output end of the auxiliary screen power panel, and the output end of the third relay is electrically connected with the power supply end of the auxiliary screen CPU;
the input end of the auxiliary screen power panel is used for being electrically connected with the output end of the first relay and supplying power to the auxiliary screen CPU when the first relay is conducted and the third relay is conducted;
the output end of the third relay is the first output end of the auxiliary screen power supply circuit; the second output end of the auxiliary screen power supply board is the second output end of the auxiliary screen power supply circuit;
and the first output end of the auxiliary screen MCU is electrically connected with the controlled end of the third relay and is used for driving the third relay to be switched on when receiving the awakening signal.
6. The dual-screen intelligent interactive system according to claim 5, wherein the wake-up signal output circuit comprises an infrared signal receiving circuit,
the infrared signal receiving circuit is respectively electrically connected with the first input end of the main screen MCU and the first input end of the auxiliary screen MCU and is used for sending the awakening signal to the main screen MCU and the auxiliary screen MCU when receiving the infrared signal.
7. The dual-screen intelligent interactive system of claim 5, wherein the wake-up signal output circuit comprises a first Hall sensor;
the first Hall sensor is respectively electrically connected with the second input end of the main screen MCU and the second input end of the auxiliary screen MCU and used for sending the awakening signal to the main screen MCU and the auxiliary screen MCU when detecting the change of magnetic flux.
8. The dual-screen intelligent interaction system of claim 7, wherein the secondary screen device is provided with a second hall sensor;
and the second Hall sensor is respectively electrically connected with the third input end of the main screen MCU and the third input end of the auxiliary screen MCU and is used for sending the awakening signal to the main screen MCU and the auxiliary screen MCU when detecting the change of magnetic flux.
9. The dual-screen intelligent interactive system according to claim 8, wherein the main screen device is further provided with a main screen driving circuit,
and the screen driving signal output end of the main screen CPU is electrically connected with the screen driving signal input end of the main screen driving circuit and used for sending a main screen driving signal to drive the main screen driving circuit to be electrified when receiving the main screen driving signal.
10. The dual-screen intelligent interactive system according to claim 3, wherein the secondary screen device is further provided with a secondary screen driving circuit,
and the screen driving signal output end of the auxiliary screen CPU is electrically connected with the screen driving signal input end of the auxiliary screen driving circuit and used for sending an auxiliary screen driving signal to drive the auxiliary screen driving circuit to be electrified when the auxiliary screen driving signal is received.
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| CN201921641736.1U CN210575039U (en) | 2019-09-29 | 2019-09-29 | Double-screen intelligent interaction system |
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| CN111813457A (en) * | 2020-07-20 | 2020-10-23 | 四川长虹电器股份有限公司 | Device and method for timing startup and shutdown of multi-screen advertising machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111813457A (en) * | 2020-07-20 | 2020-10-23 | 四川长虹电器股份有限公司 | Device and method for timing startup and shutdown of multi-screen advertising machine |
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