CN114596811A - Display device, display equipment and intelligent door lock - Google Patents

Display device, display equipment and intelligent door lock Download PDF

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Publication number
CN114596811A
CN114596811A CN202210173830.9A CN202210173830A CN114596811A CN 114596811 A CN114596811 A CN 114596811A CN 202210173830 A CN202210173830 A CN 202210173830A CN 114596811 A CN114596811 A CN 114596811A
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CN
China
Prior art keywords
module
display
led lamp
input end
output end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210173830.9A
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Chinese (zh)
Inventor
潘浩
唐杰
李春光
陈道远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Zhuhai Lianyun Technology Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Zhuhai Lianyun Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai, Zhuhai Lianyun Technology Co Ltd filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202210173830.9A priority Critical patent/CN114596811A/en
Publication of CN114596811A publication Critical patent/CN114596811A/en
Priority to PCT/CN2022/140736 priority patent/WO2023160189A1/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • H04B5/48
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • G09G2330/021Power management, e.g. power saving
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The embodiment of the invention relates to a display device, display equipment and an intelligent door lock, which comprises: power module, bluetooth module, control module and display module. The input end of the Bluetooth module is connected to the power supply module, the first output end of the Bluetooth module is connected to the first input end of the control module, and the second output end of the Bluetooth module is connected to the first input end of the display module; the second input end of the control module is connected to the power supply module, and the output end of the control module is connected to the second input end of the display module; the output end of the display module is connected to the grounding end; the control module is configured to: when the control module is in a working mode, the display module is controlled to be started so as to enable the display module to be in a display state; and when the control module is in the closing mode, the display module is controlled to be closed so as to enable the display module to be in a closing state. Therefore, the display device can be controlled, and the effects of reducing energy consumption and improving safety are achieved.

Description

Display device, display equipment and intelligent door lock
Technical Field
The embodiment of the invention relates to the technical field of intelligent furniture, in particular to a display device, display equipment and an intelligent door lock.
Background
Along with the continuous development of intelligent furniture, people's life is more and more convenient, and the intelligent door lock that wherein relates to receives the liking of vast people more and more in the aspect of safety at home. At present, the intelligent door lock on the market sets up two-dimensional code images on the door lock through a coding program, completes unlocking operation after utilizing mobile equipment to scan and identify, or directly unlocks through electronic key touch screen display, and the operation is opened to the realization intelligent door lock.
However, because the two-dimensional code image keeps a normally bright state, the power loss is high, and extra loss is brought to a power supply; and the touch screen display has the problems of being easy to crack and the like, so that unsafe factors are brought to the successful unlocking of the door lock, and the utilization rate of a user is reduced.
Disclosure of Invention
In view of this, in order to solve the technical problems of high power consumption and low security, embodiments of the present invention provide a display device, and an intelligent door lock.
In a first aspect, an embodiment of the present invention provides a display device, including:
the device comprises a power module, a Bluetooth module, a control module and a display module;
the input end of the Bluetooth module is connected to the power supply module, the first output end of the Bluetooth module is connected to the first input end of the control module, and the second output end of the Bluetooth module is connected to the first input end of the display module;
the second input end of the control module is connected to the power supply module, and the output end of the control module is connected to the second input end of the display module;
the output end of the display module is connected to a grounding end;
the control module is configured to: when the control module is in a working mode, the display module is controlled to be started so as to enable the display module to be in a display state; and when the control module is in a closing mode, the display module is controlled to be closed so as to be in a closing state.
In one possible embodiment, the bluetooth module includes: an enabling unit and an LED lamp driving unit;
the input end of the enabling unit is used as the first input end of the Bluetooth module and connected to the power supply module, and the output end of the enabling unit is used as the first output end of the Bluetooth module and connected to the first input end of the control module;
the input end of the LED lamp driving unit is connected to the input end of the enabling unit, and the output end of the LED lamp driving unit serves as the second output end of the Bluetooth module and is connected to the first input end of the display module.
In one possible embodiment, the control module comprises: a controllable element, a first resistance and a second resistance;
the grid electrode of the controllable element is connected to a first node, the source electrode of the controllable element is connected to the power supply module, and the drain electrode of the controllable element is used as the output end of the control module and is connected to the second input end of the display module;
one end of the first resistor is used as a first input end of the control module and connected to a first input end of the Bluetooth module, and the other end of the first resistor is connected to the first node;
one end of the second resistor is connected to the first node, and the other end of the second resistor is connected to the source of the controllable element and the power supply module.
In one possible embodiment, the display module includes: the LED lamp array comprises a filtering unit and an LED lamp array;
the input end of the filtering unit is used as the second input end of the display module and is connected to the output end of the control module, the first output end of the filtering unit is connected to one end of the LED lamp array, and the second output end of the filtering unit is used as the output end of the display module and is connected to the ground end;
the other end of the LED lamp array is used as a first input end of the display module and connected to a second output end of the Bluetooth module.
In one possible embodiment, the filtering unit includes: an inductance element, a first capacitor and a second capacitor;
one end of the inductance element is used as the input end of the filter unit and connected to a second node, and the other end of the inductance element is used as the first output end of the filter unit and connected to a third node;
one end of the first capacitor is connected to the second node, and the other end of the first capacitor is used as a second output end of the filter unit and is connected to a ground end;
one end of the second capacitor is connected to the third node, and the other end of the second capacitor is used as a second output end of the filtering unit and is connected to a ground end.
In one possible embodiment, the LED lamp array comprises a plurality of LED lamp sub-units;
the LED lamp subunits are connected in parallel;
one end of the LED lamp subunit is connected to the first input end of the filtering unit, and the other end of the LED lamp subunit is connected to the second input end of the Bluetooth module.
In one possible embodiment, the LED lamp sub-unit comprises: a third resistor and diode element;
one end of the third resistor, serving as one end of the LED lamp subunit, is connected to the first output end of the filtering unit, and the other end of the third resistor is connected to the anode input end of the diode element;
and the cathode output end of the diode element is used as the other end of the LED lamp subunit and is connected to the second output end of the Bluetooth module.
In a second aspect, an embodiment of the present invention provides a display device, where the display device includes: a display device as claimed in any one of the first to third aspects.
In a third aspect, an embodiment of the present invention provides an intelligent door lock, where the intelligent door lock includes: a display device as claimed in any one of the second aspect.
According to the display device, the display equipment and the intelligent door lock provided by the embodiment of the invention, through setting the power supply module, the Bluetooth module, the control module and the display module, after the Bluetooth module acquires a correct Bluetooth signal, the control module is started to realize the control of the display module and acquire a display picture, so that the operation on the display device can be realized, and the effects of effectively reducing the power consumption of the power supply and improving the safety of the display device are achieved.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding the embodiments of the present invention, the following detailed description will be given with reference to the accompanying drawings, which are not intended to limit the embodiments of the present invention.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention. According to the structure shown in fig. 1, the display device specifically includes:
the device comprises a power module 11, a Bluetooth module 12, a control module 13 and a display module 14;
an internal circuit structure of a display device according to an embodiment of the present invention includes:
the input end of the Bluetooth module 12 is connected to the power module 11, the first output end of the Bluetooth module 12 is connected to the first input end of the control module 13, and the second output end of the Bluetooth module 12 is connected to the first input end of the display module 14;
a second input end of the control module 13 is connected to the power supply module 11, and an output end of the control module 13 is connected to a second input end of the display module 14;
the output terminal of the display module 14 is connected to the ground terminal;
the control module 13 is configured to: when the control module 13 is in the working mode, the display module 14 is controlled to be started, so that the display module 14 is in a display state; when the control module 13 is in the off mode, the display module 14 is controlled to be off, so that the display module 14 is in an off state.
In one possible implementation, when the bluetooth module receives a preset bluetooth matching signal, the bluetooth module sends a high-level output signal through successful matching between the bluetooth module and the external terminal device. The control module starts the working mode under the action of the input high-level signal and outputs the power supply voltage provided by the power supply module to the display module. The display module obtains the starting voltage of the display module through the input power supply signal. And meanwhile, the second output end of the Bluetooth module is connected to the first input end of the display module, and the display module is controlled to display a preset display result under the control of the Bluetooth module. And scanning the display result through the external terminal equipment to complete the starting operation of the display device. When the bluetooth module is not matched with the received bluetooth signal, namely, after the bluetooth module fails to be matched with the bluetooth signal of the external terminal equipment, the bluetooth module outputs a low level signal, the control module starts a closing mode under the input low level signal, the power supply voltage provided by the power supply module is blocked and is output to the display module, the display module is controlled to be in a closing state, and the display module does not output a display result, so that the effects of reducing power consumption and improving the safety of the display device are realized.
The matching between the Bluetooth module and the external mobile terminal equipment is preset through software, and the matching is used for completing the network connection between the display device and the external mobile terminal equipment. And preparing for the subsequent scanning operation of the display device by the mobile terminal equipment. The preset matching device related to the present invention may be but not limited to one, and the matching information between the display device and a plurality of external mobile terminal devices may be preset.
Further, the preset display result in the embodiment of the present invention may be understood as a display result preset by a software program, and may be, but is not limited to, a display result preset by a display device when the display device leaves a factory, or a display result preset by a user at a later stage, which are all within the protection scope of the technical field of the present application.
According to the display device provided by the embodiment of the invention, the power module, the Bluetooth module, the control module and the display module are arranged, and the signal is output after the Bluetooth module is successfully matched with the external terminal equipment, so that the control module starts the working mode, and further the display module is started. And meanwhile, the display module obtains a preset display result under the control of the Bluetooth module. When the matching between the Bluetooth module and the external terminal equipment fails, the control module is in a closed mode by the output signal, and the display module is in a closed state under the control of the control module and cannot display a preset display result, so that the effects of reducing power consumption and improving the safety of the display equipment are achieved.
In an alternative aspect of the embodiments of the present invention, a bluetooth module includes: an enabling unit and an LED lamp driving unit; the input end of the enabling unit is used as a first input end of the Bluetooth module and connected to the power supply module, and the output end of the enabling unit is used as a first output end of the Bluetooth module and connected to a first input end of the control module; the input end of the LED lamp driving unit is connected to the input end of the enabling unit, and the output end of the LED lamp driving unit is used as the second output end of the Bluetooth module and is connected to the first input end of the display module.
In an alternative of the embodiment of the present invention, the control module includes: a controllable element, a first resistance and a second resistance. The grid electrode of the controllable element is connected to the first node, the source electrode of the controllable element is connected to the power supply module, and the drain electrode of the controllable element is used as the output end of the control module and is connected to the second input end of the display module; one end of the first resistor is used as a first input end of the control module and connected to a first input end of the Bluetooth module, and the other end of the first resistor is connected to a first node; one end of the second resistor is connected to the first node, and the other end of the second resistor is connected to the source of the controllable element and the power supply module.
In an alternative aspect of the embodiments of the present invention, a display module includes: the LED lamp array comprises a filtering unit and an LED lamp array; the input end of the filtering unit is used as the second input end of the display module and is connected to the output end of the control module, the first output end of the filtering unit is connected to one end of the LED lamp array, and the second output end of the filtering unit is used as the output end of the display module and is connected to the ground end; the other end of the LED lamp array is used as a first input end of the display module and is connected to a second output end of the Bluetooth module.
In an alternative of the embodiments of the present invention, the filtering unit includes: an inductance element, a first capacitor and a second capacitor; one end of the inductance element is used as the input end of the filter unit and connected to the second node, and the other end of the inductance element is used as the first output end of the filter unit and connected to the third node; one end of the first capacitor is connected to the second node, and the other end of the first capacitor is used as a second output end of the filtering unit and is connected to the ground end; one end of the second capacitor is connected to the third node, and the other end of the second capacitor is used as a second output end of the filter unit and is connected to the ground end.
In an alternative of the embodiments of the present invention, the LED lamp array comprises a plurality of LED lamp sub-units; the LED lamp subunits are connected in parallel; one end of the LED lamp subunit is connected to the first input end of the filtering unit, and the other end of the LED lamp subunit is connected to the second input end of the Bluetooth module.
In an alternative aspect of the embodiments of the present invention, an LED lamp subunit includes: a third resistor and diode element; one end of the third resistor, serving as one end of the LED lamp subunit, is connected to the first output end of the filtering unit, and the other end of the third resistor is connected to the anode input end of the diode element; and the cathode output end of the diode element is connected to the second output end of the Bluetooth module as the other end of the LED lamp subunit.
Further, the display device includes a first node (hereinafter, referred to as P1), a second node (hereinafter, referred to as P2) and a third node (hereinafter, referred to as P3), and the nodes may be understood as connection points formed by connection between two cells or connection between three cells, for example, P1 is an electrical connection point formed by connection of a controllable element and a first resistor and a second resistor.
The LED array refers to a light emitting unit composed of a plurality of LED light emitting transistors arranged in order.
The following will be included with the bluetooth module: enable unit and LED lamp drive unit, control module includes: a controllable element, a first resistor and a second resistor, the display module comprising: the filtering unit, the LED lamp array and the power module are introduced for example. The resistor in the embodiment of the present invention represents a resistor device, and may be represented by a resistor but is not limited to a representation of a resistor device. Referring to fig. 2, a schematic structural diagram of another display device provided in an embodiment of the present invention is shown. As shown in fig. 2, the display device specifically includes:
the device comprises a power module 11, a Bluetooth module 12, a control module 13 and a display module 14;
wherein, bluetooth module 12 specifically includes:
an enabling unit 21 and an LED lamp driving unit 22.
The input end of the enabling unit 21 is used as a first input end of the bluetooth module 12 and connected to the power module 11, and the output end of the enabling unit 21 is used as a first output end of the bluetooth module 12 and connected to a first input end of the control module 13; an input end of the LED lamp driving unit 22 is connected to an input end of the enabling unit 21, and an output end of the LED lamp driving unit 22 is connected to a first input end of the display module 14 as a second output end of the bluetooth module 12.
Optionally, the LED lamp driving unit may be used for, but not limited to, outputting a high level signal to drive the LED lamp to display, and outputting a low level signal to drive the LED lamp to turn off, so as to drive the LED lamp array.
According to the example shown in fig. 2, in one possible example scenario, when the bluetooth module 12 receives a bluetooth matching signal that is preset, the enabling unit 21 of the bluetooth module 12 outputs a high-level enabling signal through successful matching between the bluetooth module 12 and the external terminal device. The control module 13 achieves a start-up operation mode through the input enable signal to further control the start-up of the display module, and the display module outputs a preset display result under the driving of the LED lamp driving unit 22 to realize the start-up operation of the display device. When the matching of the bluetooth module 12 with the external terminal device fails, the enable unit 21 outputs a low level enable signal. The control module starts a closing mode through an input low level enable signal and controls the display module to be in a closing state, and the display module does not output a display result. At the moment, the display device is in a closed state, so that the effects of reducing power consumption and improving the safety of the display device are achieved.
The external mobile terminal device related in the embodiment of the present invention may include, but is not limited to, a device with bluetooth function and capable of scanning images, such as a mobile phone, a tablet computer, and a smart watch.
As shown in fig. 2, the control module 13 in the display device specifically includes:
a controllable element (hereinafter referred to as U1), a first resistor (hereinafter referred to as R1), and a second resistor (hereinafter referred to as R2).
The gate of the controllable element U1 is connected to the first node P1, the source of the controllable element U1 is connected to the power module 11, and the drain of the controllable element U1 is connected as the output terminal of the control module 13 to the second input terminal of the display module 14; one end of the first resistor R1 is used as a first input end of the control module 13 and is connected to a first input end of the Bluetooth module 12, and the other end is connected to a first node P1; a second resistor R2 has one end connected to the first node and the other end connected to the source of the controllable element U1 and the power module 11.
In one possible example, when the bluetooth module 12 receives the external matching signal and successfully matches with the external terminal device, a high level signal is output through the bluetooth module 12. After the voltage division protection action of the first resistor R1 and the second resistor R2 of the control module 13, a high level signal is output, and the high level signal reaches the on voltage of the controllable element U1, so that the controllable element U1 is turned on, and the control module 13 turns on the working mode. The controllable element U1 is turned on to provide a stable output of a power supply voltage (hereinafter referred to as VCC) to the stable input voltage of the display module 14. Under the power supply of the power supply voltage VCC, the display module 14 turns on the display state. Meanwhile, under the control of the bluetooth module 12, the display module 14 obtains a preset display result to realize the start operation of the display device. When the matching of the bluetooth module 12 with the external terminal device fails, a low level signal is output. After the voltage division protection action of the first resistor R1 and the second resistor R2, the low level signal is still output, and the low level signal does not reach the on-voltage of the controllable element U1, so that the controllable element U1 cannot be turned on, and the control module 13 is in the off mode. The controllable element U1 cannot be turned on, and blocks the output of the power supply voltage VCC, so that the display module 14 is in an off state, and the display module 14 does not output a display result. The closing manipulation of the display device is completed. Therefore, the effects of reducing power consumption and improving the safety of the display device are achieved.
As shown in fig. 2, the display module 14 of the display device specifically includes:
a filter unit 23 and an LED lamp array 24.
An input end of the filtering unit 23 is connected to an output end of the control module 13 as a second input end of the display module 14, a first output end of the filtering unit 23 is connected to one end of the LED lamp array 24, and a second output end of the filtering unit 23 is connected to a ground end as an output end of the display module 14; the other end of the LED lamp array 24 is connected as a first input of the display module 14 to a second output of the bluetooth module 12.
In one possible example, when the bluetooth module 12 is successfully matched with the external terminal device, a high level signal is output, and the control module 13 starts the operation mode through the input high level signal to stably output the power supply voltage VCC to the filtering unit 23. After the filtering action, the output power signal is sent to the LED lamp array 24, and the LED lamp array 24 is turned on to display the state. Under the control of the bluetooth module 12, the LED lamp array 24 displays a preset display result, and the start operation of the display device is completed. And outputting a low level signal after the Bluetooth module 12 fails to be matched with the external mobile terminal equipment. The control module 13 is in a shutdown mode after the input low level signal, blocks the output of the power supply voltage VCC, and the filtering unit 23 does not receive the power supply signal, so that the LED lamp array 24 is in a shutdown state, and the LED lamp array 24 does not output a display result. Therefore, the closing operation of the display device is completed, and the effects of reducing power consumption and improving the safety of the display device are achieved.
According to the display device provided by the embodiment of the invention, the enabling unit, the LED lamp driving unit, the controllable element, the filtering unit, the LED lamp array and the power supply module are arranged, when the Bluetooth module is successfully matched with the external mobile terminal device, the enabling unit provides a high-level signal, so that the controllable element reaches the conducting voltage, and the controllable element is conducted. Under the control of the controllable element, the power supply signal of the power supply module is provided for the filtering unit, and the stable power supply signal is output through the filtering action, so that the display state of the LED lamp array is achieved. Meanwhile, under the driving action of the LED lamp driving unit, the LED lamp array outputs a preset display result, and the starting operation of the display device is completed. When the matching of the Bluetooth module and the external mobile terminal equipment fails, the enabling unit outputs a low level signal, the input low level signal does not reach the conduction voltage of the controllable element, and the controllable element is not conducted. The controllable element is disconnected, the power supply signal output of the power supply module is blocked, the filtering unit cannot obtain the power supply signal, the LED lamp array is in a closed state, the LED lamp array does not output a display result, and the closing operation of the display device is completed. Therefore, the effects of reducing power consumption and improving the safety of the display device are achieved.
The following will be included with the bluetooth module: enable unit and LED lamp drive unit, control module includes: controllable element, first resistance and second resistance, the filter unit includes: inductance element, first electric capacity and second electric capacity, LED lamp array include a plurality of LED lamp subunit, and LED lamp subunit includes: a third resistor and diode element, a power module, are described as an example. Referring to fig. 3, a schematic structural diagram of a third display device provided in the embodiment of the present invention is shown. This display device is explained based on the second display device. As shown in fig. 3, the display device further includes:
the system comprises a power supply module 11, a Bluetooth module 12, a control module 13, a filtering unit 23 and an LED lamp array 24;
the filtering unit 23 specifically includes:
inductive element L1, first capacitor C1, and second capacitor C2.
One end of the inductance element L1 is connected to the second node P2 as the input end of the filtering unit 23, and the other end of the inductance element L1 is connected to the third node P3 as the first output end of the filtering unit 23; one end of the first capacitor C1 is connected to the second node P2, and the other end is connected to the ground end as the second output end of the filtering unit 23; one end of the second capacitor C2 is connected to the third node P3, and the other end is connected to the ground terminal as the second output terminal of the filtering unit 23.
Further, the display device further includes a second node (hereinafter, referred to as P2) and a third node (hereinafter, referred to as P3), where the nodes may be understood as a connection point formed by two cells or three cells, for example, P2 is an electrical connection point of the inductive element and the first capacitor, and P3 is an electrical connection point of the inductive element and the second capacitor.
In one possible example, when the bluetooth module 12 is successfully matched with the external mobile terminal device, a high level signal is output, the control module 13 turns on the operation mode after the input high level signal, controls the turn-on of the display module 14, filters the ac signal in the power signal through the filtering action of the inductance element L1 by the voltage signal output by the power module 11, and outputs a more stable power signal under the filtering action of the first capacitor C1 and the second capacitor C2. The pi-type filter circuit formed by the inductance element L1, the first capacitor C1 and the second capacitor C2 obtains a more stable output voltage, and turns on the display state of the LED lamp array 24. Under the action of the LED lamp driving unit 22, the LED lamp array 24 outputs a preset display result, thereby implementing the on operation of the display device. When the bluetooth module 12 fails to match with an external mobile terminal device, a low level signal is output, the control module 13 turns on the off mode through the low level signal, the control power module 11 outputs a power signal, the inductance element L1 cannot receive the power signal, and the working voltage of the LED lamp array 24 cannot be output through the first capacitor C1 and the second capacitor C2, so that the display result of the LED lamp array 24 cannot be output, and the off operation of the display device is completed. The external mobile terminal equipment cannot scan and display results, so that the starting operation of the display device cannot be realized, the power consumption is reduced, and the safety of the display device is improved.
The inductance element, the first capacitor and the second capacitor in the embodiment of the invention form a filter unit with the function of a pi-type filter circuit, but are not limited to the filter function completed by one implementation mode of the pi-type filter circuit.
As shown in fig. 3, the LED lamp array 24 in the display device specifically includes:
a plurality of LED lamp subunits 31.
The LED lamp subunits 31 are connected in parallel; one end of the LED lamp subunit 31 is connected to the first input end of the filtering unit 23, and the other end is connected to the second input end of the bluetooth module 12.
Optionally, the number of the LED lamp sub-units may be multiple. In one possible example, the LED lamp array may be composed of 4 LED lamp sub-units, or 9 LED lamp sub-units, for completing the output of the display result.
Optionally, the connection relationship between the LED lamp subunit and the LED lamp driving unit may be, but is not limited to, the same control terminal controlling the display state of the LED lamp subunit, and may also be, through a plurality of switching devices, controlling the display and off states of the LED lamp subunit. Under the condition that the preset display states of the LED lamp subunits are the same, the display states of the LED lamp subunits can be controlled through the same control end in the LED lamp driving unit; when the display states of the LED lamp subunits are different, the driving of the LED lamp subunits can be controlled by arranging a plurality of control pins in the LED lamp driving unit.
In one possible example, when the bluetooth module 12 is successfully matched with the external mobile terminal device, the control module 13 starts the operating mode, outputs the power signal of the power module 11 to the filtering unit 23, and obtains a stable output voltage after the filtering action of the filtering unit 23. The display operation of the LED lamp sub-unit 31 is turned on by the parallel connection of the LED lamp sub-units 31 in the circuit. Under the driving action of the LED lamp driving unit 22 of the bluetooth module 12, the LED lamp sub-unit 31 is controlled to output a preset display result, thereby completing the display operation of the display device. When the matching between the bluetooth module 12 and the external mobile terminal device fails, the control module 13 turns on the off mode to block the power signal output of the power module 11. The filtering unit 23 cannot output the power signal without the power signal, so that the LED lamp subunit 31 does not output the display result, thereby completing the turning-off operation of the display device. The external mobile terminal device cannot scan the display result, and the operation of starting the display device fails, so that the effects of reducing power consumption and improving the safety of the display device are achieved.
As shown in fig. 3, the LED lamp subunit 31 in the display device specifically includes:
a third resistor R3 and a diode element D1.
One end of the third resistor R3 is connected to the first output end of the filtering unit 23 as one end of the LED lamp subunit 31, and the other end is connected to the positive input end of the diode element D1; the cathode output terminal of the diode element D1 is connected as the other terminal of the LED lamp subunit 31 to the second output terminal of the bluetooth module 12.
Optionally, in the embodiment of the present invention, the LED lamp sub-units 31 may include a plurality of third resistors R3 and diode elements D1, and the number of the LED lamp sub-units formed by the third resistors R3 and the diode elements D1 may be multiple.
Further, the diode element may be, but is not limited to, a light emitting diode element having a light emitting function, and a device capable of achieving a light emitting function is within the scope of the present invention.
In one possible example, when the bluetooth module 12 is successfully matched with the external mobile terminal device, the control module 13 turns on the operation mode, and controls the power module 11 to output the power signal to the filtering unit 23. The stable power supply signal is output after the filtering action of the filtering unit 23. Under the current limiting effect of the third resistor R3, the diode element D1 is turned on in the forward direction, and the display function is realized. Under the driving action of the LED lamp driving unit 22 of the bluetooth module 12, the diode element D1 displays a preset display image. And the external mobile terminal equipment finishes the starting operation of the display device by scanning and displaying the image. When the matching between the bluetooth module 12 and the external mobile terminal device fails, the control module 13 turns on the off mode to block the power module 11 from outputting the power signal to the display module. The filtering unit 23 in the display module 14 cannot perform power filtering and cannot output a power signal, so that the diode element D1 cannot be turned on, and the display result is in an off state. The external mobile terminal device cannot scan the display result, and the display device fails to be started. Therefore, the effects of reducing power consumption and improving the safety of the display device are achieved.
According to the display device provided by the embodiment of the invention, by setting the enabling unit, the LED lamp driving unit, the first resistor, the second resistor, the controllable element, the inductance element, the first capacitor, the second capacitor, the third resistor, the diode element and the power module, when the Bluetooth module is successfully matched with the external mobile terminal device, the enabling unit outputs a high-level signal, and under the protection of the first resistor and the second resistor, the on-state voltage of the controllable element is achieved, and the controllable element is turned on. And then the power supply module is controlled to output a power supply signal to the inductive element, and a stable power supply signal is obtained through the filtering action of the inductive element, the first capacitor and the second capacitor. Under the current-limiting action of the third resistor, the forward conduction voltage of the diode element is achieved, the diode element is conducted, and therefore the display state of the display module is started. Under the driving action of the LED lamp driving unit, the preset LED lamp displays images and outputs the display images. And the external mobile terminal equipment finishes the starting operation of the display device by scanning and displaying the image. When the matching of the Bluetooth module and the external mobile terminal fails, the enabling unit outputs a low level signal, the conduction voltage of the controllable element cannot be reached, and the controllable element is not conducted. And further the power supply module is blocked from outputting the power supply signal. The pi-type filter circuit composed of the inductance element, the first capacitor and the second capacitor cannot receive power signals and cannot perform filtering action, so that the diode element cannot be conducted in the forward direction, and the display module does not output display results. The external mobile terminal device cannot scan the display image, the starting operation of the display device fails, and the effects of reducing power consumption and improving the safety of the display device are never realized.
Based on the display device provided in the above embodiment, the present invention further provides a display apparatus, which includes the display device provided in the above embodiment.
Based on the display equipment provided by the embodiment, the invention further provides an intelligent door lock, and the intelligent door lock comprises the display equipment provided by the embodiment.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. A display device, comprising:
the device comprises a power module, a Bluetooth module, a control module and a display module;
the input end of the Bluetooth module is connected to the power supply module, the first output end of the Bluetooth module is connected to the first input end of the control module, and the second output end of the Bluetooth module is connected to the first input end of the display module;
the second input end of the control module is connected to the power supply module, and the output end of the control module is connected to the second input end of the display module;
the output end of the display module is connected to a grounding end;
the control module is configured to: when the control module is in a working mode, the display module is controlled to be started so as to enable the display module to be in a display state; and when the control module is in a closing mode, the display module is controlled to be closed so as to be in a closing state.
2. The apparatus of claim 1, wherein the bluetooth module comprises: an enabling unit and an LED lamp driving unit;
the input end of the enabling unit is used as the first input end of the Bluetooth module and connected to the power supply module, and the output end of the enabling unit is used as the first output end of the Bluetooth module and connected to the first input end of the control module;
the input end of the LED lamp driving unit is connected to the input end of the enabling unit, and the output end of the LED lamp driving unit serves as the second output end of the Bluetooth module and is connected to the first input end of the display module.
3. The apparatus of claim 1, wherein the control module comprises: a controllable element, a first resistance and a second resistance;
the grid electrode of the controllable element is connected to a first node, the source electrode of the controllable element is connected to the power supply module, and the drain electrode of the controllable element is used as the output end of the control module and is connected to the second input end of the display module;
one end of the first resistor is used as a first input end of the control module and connected to a first input end of the Bluetooth module, and the other end of the first resistor is connected to the first node;
one end of the second resistor is connected to the first node, and the other end of the second resistor is connected to the source of the controllable element and the power supply module.
4. The apparatus of claim 1, wherein the display module comprises: the LED lamp array comprises a filtering unit and an LED lamp array;
the input end of the filtering unit is used as the second input end of the display module and is connected to the output end of the control module, the first output end of the filtering unit is connected to one end of the LED lamp array, and the second output end of the filtering unit is used as the output end of the display module and is connected to the ground end;
the other end of the LED lamp array is used as a first input end of the display module and connected to a second output end of the Bluetooth module.
5. The apparatus of claim 4, wherein the filtering unit comprises: an inductance element, a first capacitor and a second capacitor;
one end of the inductance element is used as the input end of the filter unit and connected to a second node, and the other end of the inductance element is used as the first output end of the filter unit and connected to a third node;
one end of the first capacitor is connected to the second node, and the other end of the first capacitor is used as a second output end of the filter unit and is connected to a ground end;
one end of the second capacitor is connected to the third node, and the other end of the second capacitor is used as a second output end of the filtering unit and is connected to a ground end.
6. The apparatus of claim 4, wherein the LED light array comprises a plurality of LED light sub-units;
the LED lamp subunits are connected in parallel;
one end of the LED lamp subunit is connected to the first input end of the filtering unit, and the other end of the LED lamp subunit is connected to the second input end of the Bluetooth module.
7. The apparatus of claim 6, wherein the LED lamp sub-unit comprises: a third resistor and diode element;
one end of the third resistor, serving as one end of the LED lamp subunit, is connected to the first output end of the filtering unit, and the other end of the third resistor is connected to the anode input end of the diode element;
and the cathode output end of the diode element is used as the other end of the LED lamp subunit and is connected to the second output end of the Bluetooth module.
8. A display device, characterized in that the display device comprises: a display device as claimed in any one of claims 1 to 7.
9. An intelligent door lock, characterized in that, intelligent door lock includes: the display device of any one of claims 8.
CN202210173830.9A 2022-02-24 2022-02-24 Display device, display equipment and intelligent door lock Pending CN114596811A (en)

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PCT/CN2022/140736 WO2023160189A1 (en) 2022-02-24 2022-12-21 Display apparatus, display device, and smart door lock

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