Novel electronic ink screen label photo frame based on NFC technology

Abstract

The invention discloses a novel NFC (Near Field Communication) electronic ink screen label photo frame, which can respectively solve the problem of Android system near-field compatibility of the existing NFC electronic ink screen photo frame and the problem of user experience that an electronic ink screen with relatively high power consumption always cannot be successfully refreshed in two ways.

Description

Technical Field

[0001] The invention relates to a multifunctional photo frame, in particular to a new electronic ink screen tag photo frame based on active NFC and antenna switch control technology. Background Art

[0002] Photo frames are common items in our daily life, used to decorate photos as souvenirs. Ordinary photo frames on the market do not have electronic devices. They basically exist in the form of a photo frame shell wrapping a physical photo. Users print out the images they want to display and put them in the photo frame for display. This kind of album is very common and cheap. Ordinary photo frames have no electronic devices. To display pictures, you can only print out the pictures and put them in the photo frame. If you want to change the displayed photos, you must take out the original photos, print new ones and put them in again. There is no carousel function and it is not smart.

[0003] Traditional photo frames have been widely used by people, but traditional photo frames can only display a paper picture. Changing the picture requires reprinting, which is also troublesome. Although the original digital photo frames have many functions, they consume a lot of power and require a dedicated power adapter, which has high requirements for the use environment. It is also difficult to hang multiple photo frames on the wall together as photo frames. Moreover, they use actively luminous LED and LCD screens, which have radiation and can cause damage to the eyes. Passive NFC e-ink screen photo frames are also used in some occasions, but they are not compatible with a variety of e-ink screens with high power consumption, nor are they compatible with NFC antennas of various different models of mobile phones or handheld terminals. In addition, under the Android and Hongmeng systems, it is impossible to flexibly operate the NFC signal through the system, resulting in continuous heating of the NFC device, making it difficult to achieve a good user experience. Summary of the invention

[0004] The existing technology uses passive NFC technology, which means that no matter it is transmission or screen swiping, it is necessary to continuously draw power through NFC signals. This method has poor compatibility and user experience, because different photo frame e-ink screens require different amounts of power, and NFC antennas also have compatibility issues. It is difficult to ensure that enough power is drawn from the NFC signal. However, if we only draw power from the NFC antenna for signal transmission, and after saving the data, use the built-in power supply for subsequent power supply, we can ensure the stability and success rate of operations such as screen swiping.

[0005] In order to solve the above problems, two different methods are proposed: the first one is passive, but with a hardware switch; the second one does not have a hardware switch, but has a built-in battery and is active.

[0006] The present invention provides a new electronic ink screen tag photo frame based on active NFC technology, which is characterized by comprising the following modules:

[0007] E-ink screen module, active NFC main control board, power module.

[0008] In a possible embodiment, it also includes an NFC antenna module, which includes an NFC antenna and a power supply circuit, and is used to obtain power and communicate after sensing an NFC signal from a mobile phone or other device. The NFC antenna module and the mobile phone or other device interact using the NFC standard protocol; the power supply module includes a battery or a solar panel and a corresponding power supply control circuit.

[0009] In a possible embodiment, the photo frame system of the mobile phone APP is used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board refreshes the electronic ink screen module.

[0010] In a possible embodiment, it also includes a built-in battery circuit, which is used to directly power the active NFC main control board; after the main control chip of the active NFC main control board completes data transmission with an NFC main device such as a mobile phone, the power module outputs, thereby powering the entire circuit including the screen.

[0011] In a possible embodiment, it is characterized in that the electronic ink screen module includes but is not limited to an electronic ink paper display part, glass, and a driving circuit; the electronic ink screen module can perform screen swiping communication with an active NFC main control board through an interface, and perform data transmission according to the protocol requirements of the driving circuit in the electronic ink screen.

[0012] In a possible embodiment, a photo frame system of a mobile phone APP is also included.

[0013] The specific principle is: in the initial state, the battery circuit does not supply power to the main control board; after the mobile phone and other devices send the NFC signal, the main control board obtains the initial NFC power through the NFC antenna module, which is used to perform NFC communication with the mobile phone and other devices to obtain image data. After the transmission is completed, the main control board controls the LDO enable pin of the power chip of the built-in power module, so that the power of the built-in power supply (battery or solar panel) can be used to power the entire main control board and the electronic ink screen through the LDO chip. At this time, the main control board sends the acquired image data to the electronic ink screen module through the interface protocol required by the electronic ink screen module such as SPI to perform the screen swiping operation. At this time, it is no longer necessary to obtain the NFC signal power of the mobile phone and other devices. The present invention uses an active NFC main control board to obtain power, that is, it does not work normally and does not consume the built-in power supply. When the mobile phone APP starts to transmit data through NFC, it uses the NFC signal of the mobile phone or handheld device to obtain power, and subsequent operations such as swiping the screen use the built-in battery or solar panel to obtain power.

[0014] In a possible embodiment, a new electronic ink screen tag photo frame based on NFC technology is characterized by including the following modules:

[0015] Electronic ink screen module, NFC main control board, antenna control module, wake-up circuit module.

[0016] In a possible embodiment, the photo frame system of the mobile phone APP is used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the passive NFC main control board, and the NFC main control board refreshes the electronic ink screen module.

[0017] In a possible embodiment, the wake-up circuit turns on the antenna control module by pressing a button; and the main control board is powered by NFC signal energy sent by an NFC main device such as a mobile phone.

[0018] In a possible embodiment, a photo frame system of a mobile phone APP is also included.

[0019] The specific working process of the present invention is: 1. In the initial state, the main control circuit has no power supply and therefore does not work; the NFC main device such as the mobile phone sends an NFC signal, but at this time, since the main control circuit antenna switch of the device is not turned on, the main control circuit cannot obtain the NFC power energy, and the mobile phone APP cannot discover the device; 2. The user presses the button of the wake-up circuit (two types of buttons, one is a touch button that requires a built-in battery to power the device, and the other is a mechanical button). After the external button of the wake-up circuit is pressed, the antenna switch circuit is turned on; 3. After the NFC antenna of the device is turned on, the main control board obtains the NFC antenna energy sent by the mobile phone, so that it can start working; 4. The main control board first turns on another antenna switch controlled by itself, Keep the NFC antenna connected (to avoid releasing the button at this time, causing the antenna to disconnect), so that the main control board can continue to obtain the NFC energy of the mobile phone. 5. The main control board and mobile phones and other devices perform NFC communication to obtain image data. After the transmission is completed, the main control board still uses the NFC signal of the mobile phone and other main devices to draw power and power the electronic ink screen. It sends it to the electronic ink screen module through the interface protocol required by the electronic ink screen module such as SPI to perform the screen swiping operation; 5. Afterwards, the main control board disconnects the NFC antenna through the antenna control module, so that the mobile phone and other NFC main devices disconnect the NFC device, so that the disconnection and connection of the device can be flexibly controlled, and it will not affect the information reading of other NFC devices by the mobile phone and other NFC main devices.

[0020] The present invention solves the problem that Android and Hongmeng operating systems cannot flexibly cut off NFC devices in the near field. It is not intended to solve the problem that various screens have high power consumption and cannot refresh the screen well relying solely on the NFC signal of the mobile phone. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of a new electronic ink screen tag photo frame module based on active NFC technology.

[0022] Figure 2 This is a new electronic ink screen tag photo frame based on active NFC technology in another embodiment.

[0023] Figure 3 This is a schematic diagram of the conversion circuit.

[0024] Figure 4 The present invention is a flowchart of a low-power multi-functional display method for an electronic ink screen.

[0025] Figure 5 A schematic flow chart of a low-power multi-functional display method for an electronic ink screen in another possible embodiment. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0028] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present invention, are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or adding the possibility of one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0029] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0030] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present invention belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present invention.

[0031] The present invention is aimed at the original patents or products that use passive NFC technology, that is, whether it is transmission or screen swiping, it is necessary to continuously draw power through NFC signals. This method has poor compatibility and user experience, because different photo frame electronic ink screens require different amounts of power, and NFC antennas also have compatibility issues. It is difficult to ensure that enough power is drawn from the NFC signal. However, if we only draw power from the NFC antenna for signal transmission, and after saving the data, use the built-in power supply for subsequent power supply, we can ensure the stability and success rate of operations such as screen swiping, and solve the problem that high-resolution, multi-color, and multi-e-ink screens cannot have a better user experience through passive NFC.

[0032] In some possible embodiments: see Figure 1The present invention provides a new electronic ink screen tag photo frame based on active NFC technology, characterized in that it includes the following modules:

[0033] E-ink screen module, active NFC main control board, power module.

[0034] Specifically, the active NFC main control board is powered in a way that it does not work normally and does not consume the built-in power supply. When the mobile phone APP starts to transmit data through NFC, it draws power through the NFC signal of the mobile phone or handheld device, and subsequent operations such as swiping the screen use the built-in battery or solar panel to draw power.

[0035] Specifically, the present invention provides a new electronic ink screen tag photo frame based on active NFC technology, including: an electronic ink screen module, an active NFC main control board, a power module (with a built-in battery or a solar panel), a smart phone, and application software running on the mobile phone (used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board to refresh the electronic ink screen module).

[0036] In a possible embodiment, it also includes an NFC antenna module, which includes an NFC antenna and a power supply circuit, and is used to obtain power and communicate after sensing an NFC signal of a mobile phone or other device. The NFC antenna module and the mobile phone or other device interact using NFC standard protocols NFC 14443-4, etc.; the power supply module includes a battery or a solar panel and a corresponding power supply control circuit.

[0037] In a possible embodiment, a photo frame system of a mobile phone APP is also included.

[0038] Specifically, the power module includes a battery or solar panel and a corresponding power control circuit (such as LDO, etc.); the NFC antenna module includes an NFC antenna and a power supply circuit, which is used to obtain power and communicate after sensing the NFC signal of a mobile phone or other device. The NFC antenna module and mobile phones and other devices interact using NFC standard protocols such as NFC 14443-4.

[0039] In some possible embodiments: the electronic ink screen label photo frame also includes a frame body, a hanging hole is opened on the back of the frame body, and a hinged stud is also provided, and the frame body is hinged to the support frame through the hinged stud.

[0040] In some possible embodiments: the electronic ink screen label photo frame also includes a frame body, and a timer connected to the MCU main control unit is also arranged in the frame body.

[0041] Compared with the original traditional photo frame and digital photo frame, the method of the present invention integrates the advantages of the two and eliminates the disadvantages of the two, so that the multifunctional electronic photo frame can be officially introduced into the family, replace the traditional photo frame, and quickly popularize.

[0042] Using the low-power working mode of electronic ink screen and above, when the picture is not changed, the photo frame consumes very little power, so it can work for several years without replacing the battery, which is very convenient; even if there is no power, the photos can still be displayed normally.

[0043] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0044] Furthermore, the built-in battery circuit directly powers the main control board; they are powered by a power control circuit, and after the main control chip completes data transmission with an NFC main device such as a mobile phone, it will enable the internal power output to power the entire circuit including the screen.

[0045] The specific principle is: in the initial state, the battery circuit does not supply power to the main control board; after the mobile phone and other devices send the NFC signal, the main control board obtains the initial NFC power through the NFC antenna module, which is used to perform NFC communication with the mobile phone and other devices to obtain image data. After the transmission is completed, the main control board controls the LDO enable pin of the power chip of the built-in power module, so that the power of the built-in power supply (battery or solar panel) can be used to power the entire main control board and the electronic ink screen through the LDO chip. At this time, the main control board sends the acquired image data to the electronic ink screen module through the interface protocol required by the electronic ink screen module such as SPI to perform the screen swiping operation. At this time, it is no longer necessary to obtain the NFC signal power of the mobile phone and other devices. The present invention uses an active NFC main control board to obtain power, that is, it does not work normally and does not consume the built-in power supply. When the mobile phone APP starts to transmit data through NFC, it uses the NFC signal of the mobile phone or handheld device to obtain power, and subsequent operations such as swiping the screen use the built-in battery or solar panel to obtain power.

[0046] In a possible embodiment, the photo frame system of the mobile phone APP is used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board refreshes the electronic ink screen module.

[0047] In a possible embodiment, it also includes a built-in battery circuit, which is used to directly power the active NFC main control board; after the main control chip of the active NFC main control board completes data transmission with an NFC main device such as a mobile phone, the power module outputs, thereby powering the entire circuit including the screen.

[0048] Furthermore, the electronic ink screen module, including the electronic ink paper display part, glass, driving circuit, etc., can communicate with the main control part through, for example, the SPI port to perform screen swiping and transmit data according to the protocol requirements of the driving circuit in the electronic ink screen.

[0049] In a possible embodiment, it is characterized in that the electronic ink screen module includes but is not limited to an electronic ink paper display part, glass, and a driving circuit; the electronic ink screen module can perform screen swiping communication with an active NFC main control board through an interface, and perform data transmission according to the protocol requirements of the driving circuit in the electronic ink screen.

[0050] Furthermore, the new electronic ink screen tag photo frame based on active NFC technology may include other auxiliary functional modules, mainly referring to other supporting devices, such as resistors, capacitors, connectors, etc.

[0051] In one possible embodiment, see Figure 2 , a new electronic ink screen tag photo frame based on NFC technology, characterized by including the following modules:

[0052] Electronic ink screen module, NFC main control board, antenna control module, wake-up circuit module.

[0053] Furthermore, the new electronic ink screen tag photo frame based on active NFC technology includes an electronic ink screen module, an NFC main control board, an antenna control module, a wake-up circuit module (which can have a built-in battery or only a hardware button), a smart phone, and application software running on the mobile phone (used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board to swipe the electronic ink screen module).

[0054] In a possible embodiment, the photo frame system of the mobile phone APP is used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board refreshes the electronic ink screen module.

[0055] Specifically, other auxiliary functional modules mainly refer to other supporting components, such as resistors, capacitors, connectors, etc.

[0056] In a possible embodiment, the wake-up circuit turns on the antenna control module by pressing a button; and the main control board is powered by NFC signal energy sent by an NFC main device such as a mobile phone.

[0057] In some possible embodiments, a hanging hole is opened on the back of the frame body, and a hinged stud is also provided, through which the frame body is hinged to the support frame.

[0058] In some possible embodiments, a timer connected to the MCU main control unit is also provided in the frame.

[0059] In a possible embodiment, a photo frame system of a mobile phone APP is also included.

[0060] Compared with the original traditional photo frame and digital photo frame, the method of the present invention integrates the advantages of the two and eliminates the disadvantages of the two, so that the multifunctional electronic photo frame can be officially introduced into the family, replace the traditional photo frame, and quickly popularize.

[0061] Using the low-power working mode of electronic ink screen and above, when the picture is not changed, the photo frame consumes very little power, so it can work for several years without replacing the battery, which is very convenient; even if there is no power, the photos can still be displayed normally.

[0062] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0063] Furthermore, the circuit may or may not have a built-in battery, and the antenna control module may be turned on by simply pressing a button; the main control board is powered by the NFC signal energy sent by an NFC host device such as a mobile phone;

[0064] The specific working process is: 1. In the initial state, the main control circuit has no power supply, so it does not work; the mobile phone and other NFC main devices send NFC signals, but at this time, the main control circuit antenna switch of the device is not turned on, so the main control circuit cannot obtain NFC power energy, and the mobile phone APP cannot find the device; 2. The user presses the button of the wake-up circuit (two types of buttons, one is a touch button that needs to be powered by a built-in battery, and the other is a mechanical button). After the external button of the wake-up circuit is pressed, the antenna switch circuit is turned on; 3. After the NFC antenna of the device is connected, the main control board obtains the NFC antenna energy sent by the mobile phone, so that it can start working; 4. The main control board first turns on another antenna switch controlled by itself, and keeps The NFC antenna is connected (to prevent the button from being released at this time, causing the antenna to be disconnected), so that the main control board can continue to obtain the NFC energy of the mobile phone. 5. The main control board and mobile phones and other devices perform NFC communication to obtain image data. After the transmission is completed, the main control board still uses the NFC signal of the mobile phone and other main devices to draw power and power the electronic ink screen. It is sent to the electronic ink screen module through the interface protocol required by the electronic ink screen module such as SPI to perform the screen swiping operation; 5. Afterwards, the main control board disconnects the NFC antenna through the antenna control module, so that the mobile phone and other NFC main devices disconnect the NFC device, so that the disconnection and connection of the device can be flexibly controlled, and it will not affect the information reading of other NFC devices by the mobile phone and other NFC main devices.

[0065] The present invention sets a main control circuit, and the main control board disconnects the NFC antenna through the antenna control module, so that the NFC main device such as a mobile phone disconnects the NFC device, so that the disconnection and connection of the device can be flexibly controlled, and the information reading of other NFC devices by the NFC main device such as the mobile phone will not be affected. In this way, the technical problem that under Android and Hongmeng systems, if the photo frame device is continuously at a relatively close distance to the mobile phone, the mobile phone will continuously send NFC signals to the photo frame device, and it cannot be flexibly controlled through the mobile phone APP, resulting in continuous heating of the device and affecting the mobile phone's reading of other NFC devices is solved.

[0066] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0067] In a possible embodiment, a main control circuit provided by the present invention uses a new electronic ink screen tag photo frame based on active NFC technology, and the main control circuit includes an NFC device, an NFC sensing module, a switch module, a trigger module and a control module;

[0068] The NFC sensing module is electrically connected to the switch module, and the switch module is electrically connected to the NFC device; the NFC sensing module is also electrically connected to the trigger module, and the trigger module is electrically connected to the control module, and the control module is electrically connected to the switch module;

[0069] The NFC sensing module is used to generate an induced current and output a DC voltage when the NFC device is close to the NFC reader / writer;

[0070] The trigger module is used to conduct the NFC sensing module and the control module only when in a trigger state, so as to trigger the control module;

[0071] The control module is used to output a high level signal to the switch module after being triggered, so as to trigger the switch module;

[0072] The switch module is used to conduct the NFC sensing module and the NFC device when triggered, so that the NFC device can be accessed by the NFC reading and writing device.

[0073] Furthermore, the NFC sensing module includes an NFC antenna and a conversion circuit, the NFC antenna is electrically connected to the AC input terminal of the conversion circuit, the DC output terminal of the conversion circuit is electrically connected to the access module, the power input terminal of the control module and the power input terminal of the switch module respectively, and the NFC antenna is also electrically connected to the switch module;

[0074] The NFC antenna is used to generate an AC output when the NFC device is close to an NFC reader / writer; the conversion circuit is used to convert the AC output generated by the NFC antenna into a DC voltage and output a DC voltage.

[0075] Further, the conversion circuit includes a rectifier circuit and a voltage stabilizing circuit, the NFC antenna is electrically connected to an AC input terminal of the rectifier circuit, a DC output terminal of the rectifier circuit is electrically connected to the voltage stabilizing circuit, and the voltage stabilizing circuit is electrically connected to a power input terminal of the access module, the control module, and the power input terminal of the switch module;

[0076] The rectifier circuit is used to rectify the AC output generated by the NFC antenna into a DC output; the voltage stabilizing circuit is used to limit and stabilize the DC output voltage of the rectifier circuit;

[0077] The trigger module receives a trigger signal from the wake-up circuit. For example, a user presses a button of the wake-up circuit (two types of buttons, one is a touch button that requires a built-in battery to power the button, and the other is a mechanical button). After the external button is pressed, the wake-up circuit sends a trigger signal to the trigger module. After the trigger module is triggered, the control module outputs a high-level signal to the switch module, turning on the NFC sensing module and the NFC device, so that the NFC device can be accessed; and turning on the NFC antenna, which is used to generate an AC output when the NFC device is close to the NFC reader / writer; the conversion circuit is used to convert the AC output generated by the NFC antenna into a DC voltage and output a DC voltage.

[0078] When the user needs the photo frame, he only needs to trigger the trigger module, and the control module will output a high-level signal to the switch module, turning on the NFC sensing module and the NFC device, so that the NFC device can be accessed. In addition, after the user operation is completed and the NFC device leaves the NFC reader / writer, the control module will no longer output a high-level signal to the switch module, thereby disconnecting the NFC sensing module and the NFC device, so that the NFC device cannot be accessed. It can be seen that the main control circuit provided by the present invention is not only extremely convenient to operate, but also does not have safety hazards. Therefore, when the operation is completed or the person leaves the photo frame, the NFC sensing module and the NFC device can be disconnected in time.

[0079] Furthermore, in order to meet the needs of users, it is necessary to control the conduction of the switch module. Compared with AC signals, DC signals are more suitable for controlling circuits, so a converter is set to convert the AC output generated by the NFC antenna into a DC output for controlling the switch module.

[0080] Further, see Figure 3 The conversion circuit includes a rectifier circuit 510 and a voltage regulator circuit 520. The NFC antenna 500 is electrically connected to the AC input terminal of the rectifier circuit 510. The DC output terminal of the rectifier circuit 510 is electrically connected to the voltage regulator circuit 520. The voltage regulator circuit 520 is electrically connected to the power input terminal of the trigger module 500 and the control module 50 ( Figure 3 (not shown) and the power input terminal of the switch module 30 is electrically connected ( Figure 3 (not shown). The rectifier circuit 510 is used to rectify the AC output generated by the NFC antenna 500 into a DC output; and the voltage stabilizing circuit 520 is used to limit and stabilize the DC output voltage of the rectifier circuit 510 .

[0081] The AC output generated by the NFC antenna may not be very stable, which may cause the DC output of the rectifier circuit to be unstable. Therefore, the DC output voltage of the rectifier circuit is limited and stabilized by the voltage stabilizing circuit to improve the reliability of the NFC control circuit of this embodiment.

[0082] In addition, it should be noted that a pin of the rectifier circuit 510 is connected to a common ground with a pin of the voltage stabilizing circuit 520. Figure 3 The rectifier circuit 510 includes a first rectifier diode D1, a second rectifier diode D2, a third rectifier diode D3 and a fourth rectifier diode D4.

[0083] Specifically, the anode of the first rectifier diode is electrically connected to the negative pole of the third rectifier diode to serve as the first pin of the AC input end of the rectifier circuit 510; the anode of the second rectifier diode is electrically connected to the negative pole of the fourth rectifier diode to serve as the second pin of the AC input end of the rectifier circuit 510;

[0084] The cathode of the first rectifier diode is electrically connected to the cathode of the second rectifier diode to serve as the first pin of the DC output end of the rectifier circuit 510; the anode of the third rectifier diode is electrically connected to the anode of the second rectifier diode to serve as the second pin of the DC output end of the rectifier circuit 510.

[0085] In this embodiment, the diodes may be switching diodes or Schottky diodes of the same type or different types.

[0086] Further, see Figure 3 The voltage stabilizing circuit 520 includes a voltage stabilizing diode DW1 and a filter capacitor C1; the cathode of the voltage stabilizing diode is electrically connected to the first pin of the filter capacitor, and the anode of the voltage stabilizing diode is electrically connected to the second pin of the filter capacitor.

[0087] Specifically, the voltage regulator is used to limit the DC output voltage of the rectifier circuit 510 , and the filter capacitor is used to stabilize the DC output voltage of the rectifier circuit 2022 .

[0088] The present application embodiment provides an electronic ink screen display method based on a new electronic ink screen tag photo frame based on NFC technology. Figure 4 and Figure 5 , applied to the cloud, in the first embodiment of the electronic ink screen display method of the present application, the electronic ink screen display method includes:

[0089] Step S1, obtaining image information;

[0090] Step S2, sending image information to the electronic ink screen, so that the electronic ink screen is updated based on the image information.

[0091] It should be noted that the cloud is used to store image information, and is also used to receive background editing instructions from users, accept online editing by users on the cloud, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate wirelessly. The background template image is a fusion of the background base map, text elements and icon elements. The background base map is an image, which can be an image selected by the user. The text elements and icon elements can also be selected by the user at will, and the background template image can be previewed by the user. The image information is a compressed image file. The cloud can store a large number of background template images, and can also store a large amount of image information related to the background template image, and the cloud can convert the background template image into image information supported by the electronic ink screen. There is no need to convert the background template image on the electronic ink screen, thereby reducing the operating pressure of the electronic ink screen and saving the computing power of the electronic ink screen.

[0092] Exemplarily, the cloud obtains the image information by the cloud responding to the user's background editing instruction, obtaining the background template image, and converting the background template image into image information, or the cloud responds to the update request of the electronic ink screen and determines the image information corresponding to the electronic ink screen update request from the image database in the cloud. Furthermore, the method for the electronic ink screen to receive the image information may be to send an update request to the cloud, and the cloud feeds back the image information matching the update request to the electronic ink screen, wherein the update request includes the name of the updated background, and the image information may also have a corresponding image name, and the image name of the image information matching the updated background name is searched in the cloud; the method for the electronic ink screen to receive the image information may also be that the user can trigger the update instruction of the electronic ink screen in the cloud, and the cloud directly sends the image information to the electronic ink screen to instruct the electronic ink screen to update based on the image information.

[0093] The embodiment of the present application provides an electronic ink screen display method based on a new electronic ink screen tag photo frame based on active NFC technology. In the second embodiment of the electronic ink screen display method of the present application, the electronic ink screen display method includes:

[0094] Step S100, acquiring image information;

[0095] Step S200, sending image information to the electronic ink screen;

[0096] Step S300 is for the electronic ink screen to update image information based on a preset mode.

[0097] Furthermore, the new electronic ink screen tag photo frame based on active NFC technology includes a power module, and the above step S200 is specifically set for the electronic ink screen to update based on the preset mode image information: obtain the power of the power supply as x, obtain the power required for each screen refresh as y, obtain the number of pictures as m, and adjust the picture carousel according to the power of the power supply as x, the power required for each screen refresh as y, and the number of pictures as m. If x divided by y minus m is greater than zero, all pictures are rotated. If x divided by y minus m is less than or equal to zero, a random picture is displayed, and the user is reminded that the power is low and to charge in time.

[0098] Furthermore, when the power source is solar energy, a new electronic ink screen photo frame based on active NFC and antenna control switch technology includes a power module. The above step S200 is specifically set for the electronic ink screen to update based on the preset mode image information: obtain the power of the power supply as x, obtain the power required for each screen refresh as y, obtain the power generated by the solar cell per minute as n, obtain the number of pictures as m, and adjust the picture rotation according to the power of the power supply as x, the power required for each screen refresh as y, the number of pictures as m, and the power generated by the solar cell per minute as n. When 60n is greater than y, a picture is replaced every hour. When n is much smaller than y, if x divided by y minus m is greater than zero, all pictures are rotated. If x divided by y minus m is less than or equal to zero, a random picture is displayed, and the user is reminded that the power is low and to charge in time.

[0099] The embodiment of the present application provides an electronic ink screen low power consumption multifunctional display method based on a new electronic ink screen tag photo frame based on active NFC technology. In the third embodiment of the electronic ink screen display method of the present application, the electronic ink screen low power consumption multifunctional display method includes:

[0100] Step S100, acquiring image information;

[0101] Step S500: input the picture information into a pre-built picture emotion detection model for processing, obtain the picture emotion information corresponding to the picture information as the target emotion information, and mark the image information with the emotion information.

[0102] Step S200, sending the image information with emotional information to the electronic ink screen.

[0103] Step S300 is for the electronic ink screen to update image information based on a preset mode.

[0104] The emotional information is: very positive, relatively positive, neutral, relatively negative, and very negative.

[0105] In some possible embodiments, the step of identifying the picture is also included: step S500, obtaining the user's image information; in addition, in this embodiment, after obtaining the user's image information, the user's image information can also be uploaded to the cloud, and the user can view his or her image information through the cloud at any time. S501, input the picture information into a pre-built picture emotion detection model for processing, and obtain the picture emotion information corresponding to the picture information as the target emotion information; through the above steps, after obtaining the user's picture information, input it into the picture emotion detection model in the pre-built detection model, and analyze and process the picture information through the picture emotion detection model, so as to obtain the picture emotion information corresponding to the picture information as the target emotion information. Among them, the construction process of the picture emotion detection model includes: first, using a neural network search algorithm to search for a neural network structure and determine a target neural network model.

[0106] Among them, the neural network search algorithm is preferably an effective neural network architecture search algorithm (Efficient Neural Architecture Search, ENAS), and the ENAS algorithm and the reinforcement learning algorithm are used to construct the neural network structure of the convolution kernel recurrent neural network, so as to determine the target neural network model. In addition, if the user's facial image information is first obtained before the neural network search algorithm is used to search the neural network structure and determine the target neural network model, and then the neural network search algorithm is used to search the neural network structure for the user's facial image information to determine the target neural network model corresponding to the facial image information, in this way, personalized design for the user can be achieved, that is, when the picture information received by the picture emotion detection model generated later does not match the user in the facial image information, the corresponding picture emotion information is not generated, and the emotional feedback voice is not provided for the user who does not match the facial image information. In this way, personalized design can be achieved, which is specially for users who have collected facial image information. If the user's facial image information is not obtained before the neural network search algorithm is used to search the neural network structure and determine the target neural network model, then it is not a personalized design, and everyone can use it, and emotional feedback voice can be provided for everyone who provides picture information. Secondly, a pre-stored sample set of picture information is obtained, wherein the sample set of picture information includes picture information samples and sample picture emotion information corresponding to the picture information samples. The pre-stored sample set of picture information may include a publicly available data set on the Internet, and in this embodiment, also includes pictures and emoticon packages crawled from the Internet according to emoticon tags, and sufficient picture information of specific users obtained in cooperation with relevant technology companies with the user's consent. If the robot using the data interaction method of this embodiment provides services specifically for pregnant women, then the specific user here may be a pregnant woman.

[0107] Finally, according to the first preset iteration rule, the target neural network model is iteratively trained using the image information sample and the sample image emotion information to obtain a maturely trained target neural network model as the image emotion detection model. Among them, the first preset iteration rule in this embodiment can be a set number of iterations, and the training is stopped when the number of iterative training reaches the set number of iterations, or it can be a rule of iterative training until the detection accuracy converges.

[0108] When the power source is solar energy, a new electronic ink screen photo frame based on active NFC and antenna control switch technology includes a power module. The above step S200 is specifically set for the electronic ink screen to update based on the preset mode image information: obtain the power supply power as x, obtain the power required for each screen refresh as y, obtain the power generated by the solar cell per minute as n, obtain the number of pictures as m, and adjust the picture rotation according to the power supply power x, the power required for each screen refresh as y, the number of pictures as m, and the power generated by the solar cell per minute as n. When 60n is greater than y, a picture is replaced every hour. When n is much smaller than y, if x divided by y minus m is greater than zero, all pictures are rotated. If x divided by y minus m is less than or equal to zero, a random picture is displayed, and the user is reminded that the power is low and to charge in time.

[0109] Furthermore, when the power source is solar energy, a new electronic ink screen photo frame based on active NFC and antenna control switch technology includes a power module. When the power source is solar energy, a new electronic ink screen photo frame based on active NFC and antenna control switch technology includes a power module, and the image information is adjusted and updated according to the amount of electricity generated. The amount of electricity generated by the solar cell per hour is m. When m is greater than the set threshold 1, the displayed picture is a picture with very positive or relatively positive emotional information. When m is greater than the set threshold 2 and less than or equal to the threshold 1, the displayed picture is a picture with peaceful emotional information. The frequency of replacement is: once every A*y / m hours. Where A is a preset value, A is greater than 1, the amount of electricity required for each screen refresh is y, and the amount of electricity generated by the solar cell per hour is m.

[0110] Since the amount of electricity generated by solar cells is related to the weather, the pictures to be displayed are selected based on the amount of electricity, that is, the weather conditions, so that the displayed photos are more appropriate.

[0111] Specifically, when the amount of electricity generated by the solar cell per minute is n, and the amount of electricity required for each screen refresh is y, when 60n is greater than y, the picture is changed every hour, and the emotional information of the picture is very positive. When 60n is less than or equal to y, and greater than 120n is greater than y, the picture is changed every two hours, and the emotional information of the picture is peaceful.

[0112] Based on the emotion recognition model, as an improved solution, the electronic ink screen is updated based on the preset pattern image information. First, the system randomly selects one of the m pictures of the user to display, or the user specifies one of the m pictures to display. Then, the picture is replaced and displayed according to the preset pattern. Where m is greater than 1.

[0113] The preset modes include: a first strategy, a second strategy, a third strategy and a fourth strategy; the selecting the preset mode for picture display according to the emotional state of the picture includes: in response to the emotional state of the picture being the positive and happy state, calling the first strategy for picture display; in response to the emotional state of the picture being the negative and depressed state, calling the second strategy for picture display; in response to the emotional state of the picture being the anxious and nervous state, calling the third strategy for picture display; in response to the emotional state of the picture being the angry and annoyed state, calling the fourth strategy for picture display.

[0114] This application can adjust the display mode of the picture according to the mood of the picture, which is more intelligent and adaptable to the specific situation.

[0115] Specifically, in the embodiment, the first strategy, the second strategy, the third strategy and the fourth strategy may be: when a common battery is used as the power source, the power of the power source is obtained as x, the power required for each screen refresh is obtained as y, and when y is greater than or equal to x, a charging reminder is issued. The picture is not changed until y is less than x;

[0116] The fourth strategy is that when y is less than x, the picture emotional state is immediately replaced with a picture with the positive and happy state. If there is no picture with the positive and happy state emotional state, the user is suggested to add more pictures through the mobile phone.

[0117] The third strategy is that when y is less than bx and b is less than 1, the picture emotional state is replaced with a picture of the positive and happy state. If there is no picture of the positive and happy state, the mobile phone is used to suggest the user to add more pictures.

[0118] The second strategy is that when y is less than cx and c is less than 1, the picture emotional state is replaced with a picture of the positive and happy state. If there is no picture of the positive and happy state, the mobile phone suggests the user to add more pictures.

[0119] The first strategy is that when y is less than dx and d is less than 1, the picture is replaced with a picture of a positive and happy emotional state according to the power situation. Specifically, the power of the power supply is obtained as x, and the power required for each screen refresh is obtained as y. The replacement frequency is: when ey is less than x, it is replaced every q hours, where e and q are integers greater than zero, for example, e is 200, 100, 80. q can be 1, 2, or 3.

[0120] When ey is greater than x, and fy is less than x, the replacement is performed every w hours, where e, w, and f are integers greater than zero, for example, e is 200, 100, 80, w can be 5, 6, 7, and f is 20, 10.

[0121] If fy is less than x, the image will not be changed temporarily, for example, f is 20 or 10.

[0122] Specifically, in another possible embodiment, the first strategy, the second strategy, the third strategy and the fourth strategy may be: when a common battery is used as the power source, the power of the power source is obtained as x, the power required for each screen refresh is obtained as y, and when y is greater than or equal to x, a charging reminder is issued. The picture is not changed until y is less than x;

[0123] The fourth strategy is that when y is less than x, the emotional state of the picture is immediately replaced with a picture of a positive and happy state. If there is no picture with an emotional state of a positive and happy state, the cloud is used to store image information, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate based on wireless. The background template image is a fusion of a background base map, text elements and icon elements. The background base map is an image, and the image information is applied to the background template image to generate a display picture. The text emotion in the text element in the background template image is "neutral".

[0124] Specifically, the method for determining text emotions is: calling a preset text emotion recognition model to process the text to obtain the user text emotions, specifically including: the text emotion recognition model processes the text to score various preset text emotions, wherein the preset text emotions include: "neutral", "angry", "happy", "sad", "confused", "tired", "anxious", "indifferent";

[0125] The third strategy is that when y is less than bx and b is less than 1, the emotional state of the picture is replaced with a picture of the positive and happy state. If there is no picture with the positive and happy emotional state, the cloud is used to store image information, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate based on wireless. The background template image is a fusion of a background base map, text elements and icon elements. The background base map is an image, and the image information is applied to the background template image to generate a display picture. The text emotion in the text element of the background template image is "happiness".

[0126] Specifically, the method for determining text emotions is: calling a preset text emotion recognition model to process the text to obtain the user text emotions, specifically including: the text emotion recognition model processes the text to score various preset text emotions, wherein the preset text emotions include: "neutral", "angry", "happy", "sad", "confused", "tired", "anxious", "indifferent";

[0127] The second strategy is that when y is less than cx and c is less than 1, the emotional state of the picture is replaced with a picture of the positive and happy state. If there is no picture with the positive and happy emotional state, the cloud is used to store image information, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate based on wireless. The background template image is a fusion of a background base map, text elements and icon elements. The background base map is an image, and the image information is applied to the background template image to generate a display picture. The text emotion in the text element of the background template image is "happiness".

[0128] Specifically, the method for determining text emotions is: calling a preset text emotion recognition model to process the text to obtain the user text emotions, specifically including: the text emotion recognition model processes the text to score various preset text emotions, wherein the preset text emotions include: "neutral", "angry", "happy", "sad", "confused", "tired", "anxious", "indifferent";

[0129] The first strategy is that when y is less than dx and d is less than 1, the picture is replaced with a picture of a positive and happy emotional state according to the power situation. Specifically, the power of the power supply is obtained as x, and the power required for each screen refresh is obtained as y. The replacement frequency is: when ey is less than x, it is replaced every q hours, where e and q are integers greater than zero, for example, e is 200, 100, 80. q can be 1, 2, or 3.

[0130] When ey is greater than x, and fy is less than x, the replacement is performed every w hours, where e, w, and f are integers greater than zero, for example, e is 200, 100, 80, w can be 5, 6, 7, and f is 20, 10.

[0131] If fy is less than x, the image will not be changed temporarily, for example, f is 20 or 10.

[0132] It should be noted that the cloud is used to store image information, and is also used to receive background editing instructions from users, accept online editing by users on the cloud, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate wirelessly. The background template image is a fusion of the background base map, text elements and icon elements. The background base map is an image, which can be an image selected by the user. The text elements and icon elements can also be selected by the user at will, and the background template image can be previewed by the user. The image information is a compressed image file. The cloud can store a large number of background template images, and can also store a large amount of image information related to the background template image, and the cloud can convert the background template image into image information supported by the electronic ink screen. There is no need to convert the background template image on the electronic ink screen, thereby reducing the operating pressure of the electronic ink screen and saving the computing power of the electronic ink screen.

[0133] Exemplarily, the cloud obtains the image information by the cloud responding to the user's background editing instruction, obtaining the background template image, and converting the background template image into image information, or the cloud responds to the update request of the electronic ink screen and determines the image information corresponding to the electronic ink screen update request from the image database in the cloud. Furthermore, the method for the electronic ink screen to receive the image information may be to send an update request to the cloud, and the cloud feeds back the image information matching the update request to the electronic ink screen, wherein the update request includes the name of the updated background, and the image information may also have a corresponding image name, and the image name of the image information matching the updated background name is searched in the cloud; the method for the electronic ink screen to receive the image information may also be that the user can trigger the update instruction of the electronic ink screen in the cloud, and the cloud directly sends the image information to the electronic ink screen to instruct the electronic ink screen to update based on the image information.

[0134] This application can adjust the display mode of the picture according to the battery status, and display positive pictures as much as possible, which is conducive to the physical and mental health of the user. And when there are no positive pictures, the image information is applied to the background template image to generate a display picture, and the positive or neutral text information in the background template image is used to make the picture relatively positive, reduce the user's anxiety, and enhance positive emotions.

[0135] Specifically, in another possible embodiment, the first strategy, the second strategy, the third strategy and the fourth strategy may be: when a common battery is used as the power source, the power of the power source is obtained as x, the power required for each screen refresh is obtained as y, and when y is greater than or equal to x, a charging reminder is issued. The picture is not changed until y is less than x;

[0136] The fourth strategy is that when y is less than x, the emotional state of the picture is immediately replaced with a picture with a positive and happy state. If there is no picture with the emotional state of the positive and happy state, the cloud is used to store image information, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate based on wireless. The background template image is a fusion of a background base map, text elements and icon elements. The background base map is an image, and the image information is applied to the background template image to generate a display picture. The text emotion in the text element in the background template image is "neutral". At the same time, the user is suggested to add more pictures through the mobile phone.

[0137] Specifically, the method for determining text emotions is: calling a preset text emotion recognition model to process the text to obtain the user text emotions, specifically including: the text emotion recognition model processes the text to score various preset text emotions, wherein the preset text emotions include: "neutral", "angry", "happy", "sad", "confused", "tired", "anxious", "indifferent";

[0138] The third strategy is that when y is less than bx and b is less than 1, the emotional state of the picture is replaced with a picture of the positive and happy state. If there is no picture with the emotional state of the positive and happy state, the cloud is used to store image information, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate based on wireless. The background template image is a fusion of a background base map, text elements and icon elements. The background base map is an image, and the image information is applied to the background template image to generate a display picture. The text emotion in the text element of the background template image is "happiness". At the same time, the user is suggested to add more pictures through the mobile phone.

[0139] Specifically, the method for determining text emotions is: calling a preset text emotion recognition model to process the text to obtain the user text emotions, specifically including: the text emotion recognition model processes the text to score various preset text emotions, wherein the preset text emotions include: "neutral", "angry", "happy", "sad", "confused", "tired", "anxious", "indifferent";

[0140] The second strategy is that when y is less than cx and c is less than 1, the emotional state of the picture is replaced with a picture of the positive and happy state. If there is no picture with the positive and happy emotional state, the cloud is used to store image information, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate based on wireless. The background template image is a fusion of a background base map, text elements and icon elements. The background base map is an image, and the image information is applied to the background template image to generate a display picture. The text emotion in the text element of the background template image is "happiness". At the same time, the user is suggested to add more pictures through the mobile phone.

[0141] Specifically, the method for determining text emotions is: calling a preset text emotion recognition model to process the text to obtain the user text emotions, specifically including: the text emotion recognition model processes the text to score various preset text emotions, wherein the preset text emotions include: "neutral", "angry", "happy", "sad", "confused", "tired", "anxious", "indifferent";

[0142] The first strategy is that when y is less than dx and d is less than 1, the picture is replaced with a picture of a positive and happy emotional state according to the power situation. Specifically, the power of the power supply is obtained as x, and the power required for each screen refresh is obtained as y. The replacement frequency is: when ey is less than x, it is replaced every q hours, where e and q are integers greater than zero, for example, e is 200, 100, 80. q can be 1, 2, or 3.

[0143] When ey is greater than x, and fy is less than x, the replacement is performed every w hours, where e, w, and f are integers greater than zero, for example, e is 200, 100, 80, w can be 5, 6, 7, and f is 20, 10.

[0144] If fy is less than x, the image will not be changed temporarily, for example, f is 20 or 10.

[0145] It should be noted that the cloud is used to store image information, and is also used to receive background editing instructions from users, accept online editing by users on the cloud, and the cloud and the electronic ink screen are connected in communication, and the cloud and the electronic ink screen can communicate wirelessly. The background template image is a fusion of the background base map, text elements and icon elements. The background base map is an image, which can be an image selected by the user. The text elements and icon elements can also be selected by the user at will, and the background template image can be previewed by the user. The image information is a compressed image file. The cloud can store a large number of background template images, and can also store a large amount of image information related to the background template image, and the cloud can convert the background template image into image information supported by the electronic ink screen. There is no need to convert the background template image on the electronic ink screen, thereby reducing the operating pressure of the electronic ink screen and saving the computing power of the electronic ink screen.

[0146] Exemplarily, the cloud obtains the image information by the cloud responding to the user's background editing instruction, obtaining the background template image, and converting the background template image into image information, or the cloud responds to the update request of the electronic ink screen and determines the image information corresponding to the electronic ink screen update request from the image database in the cloud. Furthermore, the method for the electronic ink screen to receive the image information may be to send an update request to the cloud, and the cloud feeds back the image information matching the update request to the electronic ink screen, wherein the update request includes the name of the updated background, and the image information may also have a corresponding image name, and the image name of the image information matching the updated background name is searched in the cloud; the method for the electronic ink screen to receive the image information may also be that the user can trigger the update instruction of the electronic ink screen in the cloud, and the cloud directly sends the image information to the electronic ink screen to instruct the electronic ink screen to update based on the image information.

[0147] This application can adjust the display mode of the picture according to the battery status, and display positive pictures as much as possible, which is conducive to the physical and mental health of the user. And when there are no positive pictures, the image information is applied to the background template image to generate a display picture, and the positive or neutral text information in the background template image is used to make the picture relatively positive, reduce the user's anxiety, and enhance positive emotions.

[0148] It should be noted that users can also perform online editing in the cloud, which includes an editor, and users can edit the background template image in the editor. Exemplarily, select any picture as the background base map, add text elements and icon elements to the background base map, and configure the style of the text elements and / or icon elements to obtain background image and text information, wherein the style configuration includes: font, alignment, spacing, line spacing, shadow, stroke and other style attributes, preview the background image and text information in the cloud, and adjust the size of the background image and text information based on the screen size of the electronic ink screen in the cloud to obtain the background template image, and store the background template image in the cloud. When the user selects the image to be displayed on the electronic ink screen in the cloud, the background template image can be previewed in the cloud. The embodiment of the present application realizes the personalized customization of the background template image by editing the background template image online in the cloud, thereby meeting the display requirements of different users for the electronic ink screen and enriching the image background supported by the electronic ink screen.

[0149] In some possible embodiments: an electronic device, characterized in that the electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can perform a picture display step.

[0150] In some possible embodiments: a computer-readable storage medium, characterized in that a program for implementing an electronic ink screen display method is stored on the computer-readable storage medium, and the program for implementing the electronic ink screen display method is executed by a processor to implement a picture display step.

[0151] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0152] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0153] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0154] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A new electronic ink screen tag photo frame based on active NFC technology, characterized in that: Includes the following modules: E-ink screen module, active NFC main control board, power module.

2. According to claim 1, a new electronic ink screen photo frame based on active NFC and antenna control switch technology is characterized in that: It also includes an NFC antenna module, which includes an NFC antenna and a power supply circuit, and is used to obtain power and communicate after sensing the NFC signal of a mobile phone or other device. The NFC antenna module and mobile phones and other devices interact using the NFC standard protocol; the power supply module includes a battery or a solar panel and a corresponding power supply control circuit.

3. According to the new electronic ink screen photo frame based on active NFC and antenna control switch technology as described in claim 2, it is characterized in that: The photo frame system of the mobile phone APP is used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board refreshes the electronic ink screen module.

4. According to the new electronic ink screen photo frame based on active NFC and antenna control switch technology as described in claim 2, it is characterized in that: It also includes a built-in battery circuit, which is used to directly power the active NFC main control board; after the main control chip of the active NFC main control board completes data transmission with an NFC main device such as a mobile phone, the power module outputs, thereby powering the entire circuit including the screen.

5. A new electronic ink screen photo frame based on active NFC and antenna control switch technology according to any one of claims 1-2, characterized in that: The electronic ink screen module includes but is not limited to an electronic ink paper display part, glass, and a driving circuit; the electronic ink screen module can communicate with the active NFC main control board through an interface and perform data transmission according to the protocol requirements of the driving circuit in the electronic ink screen.

6. A new electronic ink screen tag photo frame based on passive NFC technology, characterized in that: Includes the following modules: Electronic ink screen module, NFC main control board, antenna control module, wake-up circuit module.

7. A new electronic ink screen tag photo frame based on passive NFC technology according to claim 6, characterized in that: The photo frame system of the mobile phone APP is used to interact with the user to remind, convert and generate pictures, send picture information through communication between the mobile phone and the active NFC main control board, and the NFC main control board refreshes the electronic ink screen module.

8. The new electronic ink screen tag photo frame based on passive NFC technology according to claim 7 is characterized in that: The wake-up circuit turns on the antenna control module by pressing a button; the main control board is powered by the NFC signal energy sent by an NFC host device such as a mobile phone.

Images