Portable display devices, control methods, wireless transmission systems, and storage media

Abstract

This specification provides a portable display device, a control method, a wireless transmission system, and a storage medium. The portable display device includes a wireless power harvesting interface for harvesting wireless power signals provided by a portable electronic device and converting the wireless power signals into direct current (DC). An energy management unit is used to convert the DC power into DC power suitable for use by the portable display device. A main control unit is used to control the energy harvesting mode of the wireless power harvesting interface according to the application scenario. This specification embodiment can improve the applicability of portable display devices.

Description

Technical Field

[0001] This specification relates to the field of wireless communication technology, and in particular to a portable display device, control method, wireless transmission system, and storage medium. Background Technology

[0002] In today's digital electronics market, users, especially younger users, have an increasingly high demand for personalization. Many users want their devices to look unique to highlight their individuality. For example, there are thousands of different shapes, materials, and colors of phone cases on the market. However, while there are many digital products on the market, the vast majority have fixed styles that cannot be changed after leaving the factory. Moreover, even with a wide variety of styles, it is difficult to meet the personalized needs of every user.

[0003] To meet users' personalized needs, phone cases with displays (a type of portable display device) have emerged. These cases can wirelessly communicate with the phone, allowing users to customize the displayed content. For portability, these cases are generally passive devices, receiving wireless power signals from the phone via a wireless power harvesting interface to meet their operating requirements.

[0004] However, in the process of realizing this application, the inventors of this application discovered that the applicability of this mobile phone case with a display screen is relatively limited. Summary of the Invention

[0005] The purpose of this specification is to provide a portable display device, control method, wireless transmission system, and storage medium to improve the applicability of portable display devices.

[0006] To achieve the above objectives, in one aspect, embodiments of this specification provide a portable display device, including:

[0007] A wireless energy harvesting interface is used to harvest wireless energy signals provided by portable electronic devices and convert the wireless energy signals into direct current.

[0008] An energy management unit is used to convert the direct current into direct current suitable for use by the portable display device;

[0009] The main control unit is used to control the energy harvesting mode of the wireless energy harvesting interface according to the application scenario.

[0010] In one embodiment of the specification, controlling the energy harvesting mode of the wireless energy harvesting interface according to the application scenario includes:

[0011] When a power harvesting mode selection instruction is received from the portable electronic device, the wireless power harvesting interface is controlled to execute the corresponding power harvesting mode according to the power harvesting mode selection instruction.

[0012] In one embodiment of the specification, controlling the wireless energy harvesting interface to execute the corresponding energy harvesting mode according to the energy harvesting mode selection instruction includes:

[0013] When a fully active mode selection command is received, the wireless energy harvesting interface is controlled to harvest energy in the normal harvesting mode.

[0014] When a semi-active mode selection command is received, the wireless energy harvesting interface is controlled to perform intermittent energy harvesting.

[0015] When a passive mode selection command is received, the wireless energy harvesting interface is controlled to harvest energy based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device.

[0016] In one embodiment of the specification, the portable display device further includes an ultra-thin energy storage device; the thickness of the ultra-thin energy storage device does not exceed a specified thickness value;

[0017] Correspondingly, the energy management unit is also used to control the charging and discharging of the ultra-thin energy storage device.

[0018] In one embodiment of the specification, the wireless communication interface of the portable display device and the wireless energy harvesting interface form a combined interface.

[0019] In one embodiment of the specification, controlling the energy harvesting mode of the wireless energy harvesting interface according to the application scenario includes:

[0020] The energy harvesting mode of the wireless energy harvesting interface is controlled according to the power of the ultra-thin energy storage device.

[0021] In one embodiment of the specification, controlling the energy harvesting mode of the wireless energy harvesting interface based on the power of the ultra-thin energy storage device includes:

[0022] When the power of the ultra-thin energy storage device is lower than the lower power threshold, the wireless energy acquisition interface is controlled to perform energy acquisition in the normal acquisition mode.

[0023] When the power of the ultra-thin energy storage device reaches the lower power threshold, the wireless energy harvesting interface is controlled to perform intermittent energy harvesting.

[0024] When the power of the ultra-thin energy storage device reaches the upper limit threshold, the wireless energy harvesting interface is controlled to harvest energy based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device.

[0025] In one embodiment of the specification, the duration of the intermittent energy harvesting interval is positively correlated with the power of the ultrathin energy storage device.

[0026] In one embodiment of the specification, the wireless energy harvesting interface includes any one or more of the following:

[0027] NFC wireless energy harvesting interface;

[0028] Qi wireless energy harvesting interface.

[0029] In one embodiment of the specification, the portable display device further includes:

[0030] A sensor array is used to collect the status and / or environmental parameters of the portable display device in real time;

[0031] Accordingly, the main control unit is used to adjust the working mode of the portable display device according to the state, and / or to output and display the environmental parameters in real time at a designated display position of the display array.

[0032] In one embodiment of the specification, the portable display device includes a mobile phone case.

[0033] On the other hand, embodiments of this specification provide a control method for a portable display device, including:

[0034] Determine the application scenarios for portable display devices;

[0035] The energy harvesting mode of the wireless energy harvesting interface of the portable display device is controlled according to the application scenario.

[0036] In one embodiment of the specification, controlling the energy harvesting mode of the wireless energy harvesting interface according to the application scenario includes:

[0037] When a power harvesting mode selection instruction is received from the portable electronic device, the wireless power harvesting interface is controlled to execute the corresponding power harvesting mode according to the power harvesting mode selection instruction.

[0038] In one embodiment of the specification, controlling the wireless energy harvesting interface to execute the corresponding energy harvesting mode according to the energy harvesting mode selection instruction includes:

[0039] When a fully active mode selection command is received, the wireless energy harvesting interface is controlled to harvest energy in the normal harvesting mode.

[0040] When a semi-active mode selection command is received, the wireless energy harvesting interface is controlled to perform intermittent energy harvesting.

[0041] When a passive mode selection command is received, the wireless energy harvesting interface is controlled to harvest energy based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device.

[0042] In one embodiment of the specification, the portable display device further includes an ultra-thin energy storage device; the thickness of the ultra-thin energy storage device does not exceed a specified thickness value;

[0043] Correspondingly, the energy management unit is also used to control the charging and discharging of the ultra-thin energy storage device.

[0044] In one embodiment of the specification, the wireless communication interface of the portable display device and the wireless energy harvesting interface form a combined interface.

[0045] In one embodiment of the specification, controlling the energy harvesting mode of the wireless energy harvesting interface according to the application scenario includes:

[0046] The energy harvesting mode of the wireless energy harvesting interface is controlled according to the power of the ultra-thin energy storage device.

[0047] In one embodiment of the specification, controlling the energy harvesting mode of the wireless energy harvesting interface based on the power of the ultra-thin energy storage device includes:

[0048] When the power of the ultra-thin energy storage device is lower than the lower power threshold, the wireless energy acquisition interface is controlled to perform energy acquisition in the normal acquisition mode.

[0049] When the power of the ultra-thin energy storage device reaches the lower power threshold, the wireless energy harvesting interface is controlled to perform intermittent energy harvesting.

[0050] When the power of the ultra-thin energy storage device reaches the upper limit threshold, the wireless energy harvesting interface is controlled to harvest energy based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device.

[0051] In one embodiment of the specification, the duration of the intermittent energy harvesting interval is positively correlated with the power of the ultrathin energy storage device.

[0052] On the other hand, embodiments of this specification provide a wireless transmission system, which includes a portable electronic device and the aforementioned portable display device.

[0053] On the other hand, embodiments of this specification provide a computer storage medium on which a computer program is stored, the computer program being executed by a processor to perform the control method described above.

[0054] As can be seen from the technical solutions provided in the embodiments of this specification above, the embodiments of this specification can control the energy harvesting mode of the wireless energy harvesting interface according to the application scenario, so that the wireless energy harvesting of portable electronic devices can be adapted to the application scenario, thereby improving the applicability of portable display devices. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0056] Figure 1 This is a structural block diagram of a portable display device in some embodiments of this specification;

[0057] Figure 2 This is a structural block diagram of a portable display device in some embodiments of this specification;

[0058] Figure 3 This is a structural block diagram of a portable display device in some other embodiments of this specification;

[0059] Figure 4 This is a structural block diagram of a portable display device in some other embodiments of this specification;

[0060] Figure 5 This is a schematic diagram of the external appearance of a portable display device according to one embodiment of this specification;

[0061] Figure 6 This is a schematic diagram illustrating the usage state of a portable display device in one embodiment of this specification;

[0062] Figure 7 This is a schematic diagram illustrating the usage state of a portable display device according to another embodiment of this specification;

[0063] Figure 8 This is a flowchart of a control method for a portable display device in some embodiments of this specification. Detailed Implementation

[0064] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0065] refer to Figure 1 As shown, the wireless transmission system of this embodiment may include a portable display device 100 and a portable electronic device 200. The portable electronic device 200 can provide wireless power signals to the portable display device 100. Furthermore, based on user operation, the portable electronic device 200 can also control the display content of the portable display device 100; that is, the content displayed on the portable display device 100 (e.g., may include, but is not limited to, text, patterns, photos, and / or animations) can be customized by the user through the human-machine interface of the portable electronic device 200, and provided to the portable display device 100 by the portable electronic device 200 via wireless communication.

[0066] The human-machine interface mentioned in this manual generally includes a touch screen and a corresponding application client (App). After opening the App, the user can edit any content they wish to display by operating the user interface on the touch screen. The wireless energy signal mentioned in this manual can be an electromagnetic signal based on wireless charging principles such as electromagnetic induction, radio waves, or nuclear magnetic resonance.

[0067] Combination Figure 2 As shown, the portable display device 100 may include a display array, a wireless communication interface, an energy management unit, a main control unit, and a wireless energy harvesting interface. The display array can be used to display user-defined information content. The wireless communication interface can be used to enable wireless communication between the portable display device 100 and the portable electronic device 200. The wireless energy harvesting interface can be used to harvest wireless energy signals provided by the portable electronic device 200 and convert the wireless energy signals into direct current (DC). The energy management unit can be used to convert the DC power into DC power suitable for use by the portable display device 100. The main control unit can be used to control the operation of the entire portable display device 100. For example, the main control unit can be used to control the energy harvesting mode of the wireless energy harvesting interface according to the application scenario.

[0068] Therefore, the embodiments of this specification can control the energy harvesting mode of the wireless energy harvesting interface according to the application scenario, so that the wireless energy harvesting of portable electronic devices can be adapted to the application scenario, thereby improving the applicability of portable display devices.

[0069] In some embodiments of this specification, there may be one or more wireless energy harvesting interfaces. When the portable display device 100 is provided with multiple wireless energy harvesting interfaces, these interfaces may employ different protocols / standards, thereby giving the portable display device 100 more options for harvesting wireless energy signals and further improving the applicability of the portable display device 100. Of course, in order to achieve wireless energy signal transmission, the portable electronic device 200 may be provided with a wireless energy generation device and a wireless energy transmission interface.

[0070] The different protocols / standards mentioned in the embodiments of this specification may include, but are not limited to, the Qi standard, the PMA (PowerMatters Alliance) standard, the A4WP (Alliance for Wireless Power) standard, the iNPOFi (invisible power field) standard, and the Wi-Po standard. For example, in Figure 2 In the exemplary embodiment shown, when the portable display device 100 is provided with two wireless power harvesting interfaces (i.e. Figure 2 When using wireless power harvesting interfaces 1 and 2, wireless power harvesting interface 1 can adopt the NFC (Near Field Communication) standard, while wireless power harvesting interface 2 can adopt the Qi standard. Those skilled in the art will understand that... Figure 2 The two wireless power harvesting interfaces shown are for illustrative purposes only. In other embodiments of this specification, more wireless power harvesting interfaces employing different standards may be selected as needed. Figure 3 and Figure 4 In the embodiments shown, the relevant parts can be referred to the description in this section, and will not be repeated below.

[0071] Furthermore, in some embodiments of this specification, the wireless communication interface and the wireless power harvesting interface can be combined into a single interface, meaning that one interface can serve as both a wireless power harvesting interface and a wireless communication interface. For example, in an exemplary embodiment, the NFC interface can be used as both a wireless power harvesting interface and a wireless communication interface. This simplifies the structure of the portable display device 100 and reduces its cost.

[0072] refer to Figure 5As shown, in a typical embodiment of this specification, the portable display device can be a mobile phone case 100a with a display array 110. Of course, this specification is not limited to this; in other embodiments, the portable display device 100 can also be a key tag, airline baggage tag, employee ID card, or digital photo frame with a display array. Correspondingly, the portable electronic device can be, for example, a mobile phone, a handheld device with a screen, or a fixed reader / writer connected to a computer. Those skilled in the art should understand that the mobile phone case (also called a phone cover or mobile phone protective case, etc.) mentioned in this specification generally refers to an accessory peripheral that can be attached to the mobile phone body, rather than the casing of the mobile phone body itself.

[0073] refer to Figure 3 As shown, in some embodiments of this specification, the portable display device 100 may further include an ultra-thin energy storage device to maintain the output display of the display array even when a wireless power signal is absent. To balance the thinness and portability of the portable display device 100, the thickness of the ultra-thin energy storage device may not exceed a specified thickness value (e.g., in an exemplary embodiment, the thickness of the ultra-thin energy storage device may not exceed 1 mm). When a wireless power signal is absent, the energy management unit can extract electrical energy from the ultra-thin energy storage device to power the portable display device 100 and maintain the output display of its display array. When a wireless power signal is available, the wireless power harvesting interface can receive the wireless power signal from the portable electronic device 200 and convert it into DC power to supply the energy management unit. The energy management unit can adjust the DC power to a DC voltage suitable for use by various parts of the portable display device 100, and any remaining electrical energy can be stored in the ultra-thin energy storage device. In an exemplary embodiment, the ultra-thin energy storage device may be, for example, an ultra-thin battery or an ultra-thin energy storage capacitor.

[0074] In some embodiments of this specification, the display array can be an LED screen, LCD screen, OLED screen, or e-ink screen, etc. In other embodiments of this specification, depending on actual needs, the display array can also be a dot-matrix, segmented, or even a display component with only two display states (such as a single LED). Therefore, this specification does not limit the display array, and the specific array can be selected as needed.

[0075] Generally, the display array can be used independently to output and display user-defined content. For example... Figure 6As shown, in an exemplary embodiment, when the phone case 100a is fitted onto the phone 200a, the display array 110 of the phone case 100a is positioned with its back to the phone 200a. Based on user customization, the display array 110 displays the text message "Life is full of challenges, living is about taking risks." In other cases, the display array can also be used in conjunction with the display screen of the portable electronic device 200. For example, in situations such as... Figure 7 In the exemplary embodiment shown, the phone case 100a may include two parts, left and right, which can rotate relative to each other to form a hinge-like structure. The left part can be used to store the phone 200a, and the right part is provided with a display array 110. When the phone 200a is used in conjunction with the phone case 100a, the display array 110 can form an extended screen for the phone 200a, thereby enabling functions such as page-by-page display.

[0076] In some embodiments of this specification, the portable electronic device 200 should also be provided with a corresponding wireless communication interface to achieve wireless communication. For example, in an exemplary embodiment, both the portable display device 100 and the portable electronic device 200 are provided with Bluetooth interfaces. It should be understood that the Bluetooth interface here is only an example, and in other embodiments of this specification, the wireless communication interface can also be a wireless communication interface based on other wireless communication standards such as WiFi, ZigBee, and LoRa. Furthermore, the wireless communication interface in this specification is not limited to this; in other embodiments of this specification, proprietary wireless communication protocols can also be used as needed.

[0077] To further expand the applicability of the portable display device 100, in some embodiments of this specification, the wireless communication interface may be provided with two or more wireless communication interfaces using different wireless communication standards. For example, in an exemplary embodiment, the portable display device 100 may be provided with a Bluetooth communication interface and an NFC communication interface.

[0078] In some embodiments of this specification, the energy management unit may be a miniature DC power management module with a hardware structure or a power management component implemented in software. The specific choice can be made as needed, and this specification does not limit it.

[0079] In some embodiments of this specification, the main control unit may include, but is not limited to, a microcontroller, a microcontroller unit (MCU), a digital signal processor (DSP), or a programmable logic controller (PLC).

[0080] refer to Figure 4As shown, in some embodiments of this specification, the portable display device 100 may further include a sensor group, which can be used to collect the status and / or environmental parameters of the portable display device 100 in real time. Correspondingly, the main control unit may also be used to adjust the operating mode of the portable display device 100 according to the status, and / or output the environmental parameters in real time at a designated display position on the display array. In some exemplary embodiments, the status and / or environmental parameters may be battery power, ambient temperature, ambient humidity, air quality parameters, the spectrum of input / output audio, etc. Correspondingly, the sensor group may include, but is not limited to, voltage sensors, temperature sensors, humidity sensors, air quality sensors, microphones, headphones, and sound source devices (e.g., headphones). For example, in an exemplary embodiment of this specification, the main control unit may further adjust the operating mode of the portable display device 100 according to the status by controlling the portable display device 100 to enter a sleep state when the power of the ultra-thin energy storage device is lower than a lower power limit threshold, in order to save energy and protect the portable display device 100.

[0081] Generally, the energy harvested by a wireless power harvesting interface needs to exceed a certain value (e.g., 60mW) to meet the energy requirements of a display device. Most current wireless power harvesting technologies possess at least basic wireless communication capabilities, which are crucial for wireless power harvesting. The wireless communication function of the wireless power harvesting interface is typically used for the detection and handshake process between the energy receiver and transmitter, negotiation of energy transmission and reception parameters, and error adjustment. For example, wireless power harvesting based on the NFC standard requires establishing communication between the NFC reader / writer and the NFC card; otherwise, the NFC reader / writer will only emit probe pulses with extremely low duty cycles, unable to perform higher-power and more efficient energy harvesting. Similarly, the Qi standard also implements unidirectional communication from the receiver to the transmitter to achieve receiver detection and error adjustment functions.

[0082] In other embodiments of this specification, the main control unit can be used to precisely define and control the communication process in energy harvesting, and can even implement non-standard communication protocols to achieve some special energy harvesting effects.

[0083] In some embodiments of this specification, in the process where the main control unit controls the energy harvesting mode of the wireless energy harvesting interface according to the application scenario, the selection of the energy harvesting mode can be controlled by the user. For example, in one embodiment, as needed, the user can select the energy harvesting mode through the human-machine interface of the portable electronic device 200; and the portable electronic device 200 can provide the corresponding energy harvesting mode selection instruction to the portable display device 100. Accordingly, when the energy harvesting mode selection instruction is received, the main control unit can control the wireless energy harvesting interface to execute the corresponding energy harvesting mode according to the energy harvesting mode selection instruction.

[0084] For example, when a user wants the portable display device 100 to operate in fully active mode, the portable electronic device 200 can issue a fully active mode selection command. Correspondingly, upon receiving the fully active mode selection command, the main control unit can control the wireless energy harvesting interface to harvest energy in a normal harvesting mode. When a user wants the portable display device 100 to operate in semi-active mode, the portable electronic device 200 can issue a semi-active mode selection command. Correspondingly, upon receiving the semi-active mode selection command, the main control unit can control the wireless energy harvesting interface to perform intermittent energy harvesting. When a user wants the portable display device 100 to operate in passive mode, the portable electronic device 200 can issue a passive mode selection command. Correspondingly, upon receiving the passive mode selection command, the main control unit can control the wireless energy harvesting interface to harvest energy based on periodic detection signals. For ease of understanding, the fully active, semi-active, and passive modes mentioned above will be explained in detail below.

[0085] Fully Active Mode: This mode conforms to the standard specification definition of the wireless power harvesting interface. In this mode, all functions of the wireless power harvesting interface are enabled, and communication and power harvesting are performed according to the normal harvesting method of the protocol (the purpose of communication here is to establish and maintain the wireless power transmission channel, not for data transmission). For example, for power harvesting based on the NFC interface, the NFC interface communication function is fully enabled, and power harvesting is performed after the communication handshake is successful. As another example, for power harvesting based on the Qi interface, the Qi interface responds normally to the ping command and sequentially sends ID packets and configuration packets to the Qi charger on the portable electronic device 200 side, and then periodically sends error packets and power measurement packets. In fully active mode, due to the establishment and maintenance of communication, the wireless power supply to the portable display device 100 can be continuous. Therefore, fully active mode is more suitable for occasions requiring fast charging of the portable display device 100.

[0086] Semi-active mode: This mode is suitable for situations where the wireless communication interface and the wireless energy harvesting interface are combined into one interface. While the portable electronic device 200 provides wireless energy signals through the wireless energy transmission interface for wireless energy harvesting via the combined interface, it may also need to conduct data communication. Therefore, communication interface resources need to be reserved for data communication to avoid preventing other devices from using their corresponding communication interfaces to access the portable electronic device 200. For example, when the portable display device 100 is a phone case, the portable electronic device 200 is a phone, and the combined interface is an NFC interface, while using the NFC interface to harvest energy to maintain the phone case's operation, because the NFC interface operates in a point-to-point mode, once the phone case fully activates its NFC function, the phone's NFC communication interface resources will be exclusively occupied by the phone case. Other devices will no longer be able to access the phone via the NFC interface, thus preventing normal use of the phone's NFC interface for data communication functions such as contactless payment and Bluetooth pairing. In this case, the NFC interface can use semi-active mode, where the phone case can intermittently activate the NFC interface for energy harvesting at short intervals. During the time period when the NFC interface is enabled, energy harvesting and communication are performed normally, and the communication function of the NFC interface is completely disabled at other times, so that other devices can have the opportunity to successfully connect to the phone through the phone's NFC interface.

[0087] Therefore, in semi-active mode, energy harvesting is only effective for a portion of the time, and the power and charging efficiency may be lower than in fully active mode, but it still allows for the data communication function of the corresponding communication interface of the portable electronic device 200. Thus, semi-active mode is suitable for situations where the portable display device 100 has a charging need, but it is not permissible for the portable display device 100 to completely occupy the corresponding communication interface of the portable electronic device 200.

[0088] For example, taking a portable display device 100 as a phone case, a portable electronic device 200 as a phone, and a 2-in-1 interface as an NFC interface, in semi-active mode, the NFC interface of the phone case can alternately execute a communication-on state and a communication-off state. In the communication-on state, the phone's NFC interface can execute anti-collision commands when establishing NFC communication; once the anti-collision phase is completed (e.g., NFC communication is established with the phone case), the phone's NFC interface will no longer respond to requests from other devices' NFC readers until the communication-on state of the phone case's NFC interface lasts for a preset time and the NFC communication connection with the phone is disconnected, at which point the phone's NFC interface is released.

[0089] After the connection is broken, the phone case's NFC interface transitions from a communication-on state to a closed state. During this period, since the phone's NFC interface is idle, it can respond to requests from other devices' NFC readers at any time. The duration of the communication-closed state can be set. When the phone case's NFC interface remains in the communication-closed state for the preset time, it can re-enter the communication-on state to re-establish NFC communication with the phone, and so on. Of course, if the phone's NFC interface is occupied when the phone case's NFC interface enters the communication-on state and attempts to establish NFC communication with the phone, the phone case's NFC interface can retry through polling or other mechanisms; if the phone's NFC interface has not been released by another device when the communication-on state time expires, the phone case's NFC interface will also normally enter the communication-closed state.

[0090] Passive Mode: This mode is suitable when the portable display device 100 has sufficient power and only needs to collect a small amount of power through the wireless power harvesting interface to maintain a sufficient power level. For example, when the portable display device 100 is a phone case, the portable electronic device 200 is a phone, and the wireless power harvesting interface is an NFC power harvesting interface, if the phone case has sufficient power and the overall power consumption of the phone case is very low, then there is no need to use the fully active or semi-active mode; the passive mode can be used instead. In passive mode, the portable display device 100 does not need to enable NFC communication; it can maintain sufficient power by collecting energy from the periodic NFC probe frames (i.e., periodic probe signals) provided by the phone. At this time, the phone's NFC interface can be freely used for normal access by other devices.

[0091] In other embodiments of this specification, where the main control unit controls the energy harvesting mode of the wireless energy harvesting interface according to the application scenario, the selection of the energy harvesting mode can also be automatically controlled by the main control unit. For example, in one embodiment, the main control unit can control the energy harvesting mode of the wireless energy harvesting interface based on the power of the ultra-thin energy storage device.

[0092] For example, when the power level of the ultra-thin energy storage device is below the lower power limit threshold, the main control unit can control the wireless energy harvesting interface to harvest energy in a normal manner (i.e., in the fully active mode described above). When the power level of the ultra-thin energy storage device reaches the lower power limit threshold, the main control unit can control the wireless energy harvesting interface to perform intermittent energy harvesting (i.e., in the semi-active mode described above). When the power level of the ultra-thin energy storage device reaches the upper power limit threshold, the main control unit can control the wireless energy harvesting interface to harvest energy based on periodic detection signals (i.e., in the passive mode described above).

[0093] In the energy harvesting mode of the wireless energy harvesting interface controlled by the main control unit according to the application scenario, the interval duration of the intermittent energy harvesting can be automatically adjusted according to the power of the ultra-thin energy storage device. Specifically, the interval duration of the intermittent energy harvesting can be positively correlated with the power of the ultra-thin energy storage device. For example, when the power of the ultra-thin energy storage device is low, the interval duration of energy harvesting can be adaptively shortened to appropriately improve charging efficiency; when the power of the ultra-thin energy storage device is high, the interval duration of energy harvesting can be adaptively increased to reserve more communication interface resources for data communication for the corresponding communication interface of the portable electronic device 200.

[0094] It should be noted that all of the above energy harvesting modes are compatible with the energy harvesting transmitters of their respective existing standards, requiring no changes to the transmitters, thus making them easier to implement.

[0095] For ease of description, the above devices are described in terms of function, divided into various units. Of course, in implementing this specification, the functions of each unit can be implemented in one or more hardware and / or software components.

[0096] This manual also provides control methods corresponding to the aforementioned portable display devices. (See reference) Figure 8 As shown in some embodiments of this specification, the control method for a portable display device may include the following steps:

[0097] S801. Determine the application scenarios for portable display devices;

[0098] S802. Control the energy harvesting mode of the wireless energy harvesting interface of the portable display device according to the application scenario.

[0099] In some embodiments of this specification, determining the application scenario of the portable display device may include, for example, confirming whether an energy harvesting mode selection instruction has been received, and what type of energy harvesting mode selection instruction has been received. When no energy harvesting mode selection instruction is received, energy harvesting can be performed according to the default energy harvesting mode. The default energy harvesting mode can be set. For example, the fully active mode can be used as the default energy harvesting mode. When an energy harvesting mode selection instruction is received, that instruction can be used as the current application scenario of the portable display device.

[0100] In other embodiments described herein, determining the application scenario of the portable display device may include, for example, real-time detection of the power level of the ultra-thin energy storage device of the portable display device, and using the detected power level as the current application scenario of the portable display device.

[0101] In some embodiments of this specification, the energy harvesting mode of the wireless energy harvesting interface of the portable display device is controlled according to the application scenario. Please refer to the relevant sections above for details, which will not be repeated here.

[0102] This specification also provides a computer program corresponding to the aforementioned portable display device, on which the computer program is stored, and which, when run by a processor, executes the aforementioned control method.

[0103] Although the process described above includes multiple operations that occur in a specific order, it should be clearly understood that these processes may include more or fewer operations, which may be executed sequentially or in parallel (e.g., using parallel processors or a multithreaded environment).

[0104] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0105] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0106] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0107] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0108] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0109] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0110] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element.

[0111] Those skilled in the art will understand that the embodiments of this specification can be provided as methods, systems, or computer program products. Therefore, this specification may take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this specification may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0112] This specification can be described in the general context of computer-executable instructions that are executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. This specification can also be practiced in distributed computing environments, where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0113] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the method embodiments are basically similar to the system embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the system embodiments.

[0114] The above description is merely an embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of the claims of this specification.

Claims

1. A portable display device, characterized in that, include: A wireless energy harvesting interface is used to harvest wireless energy signals provided by portable electronic devices and convert the wireless energy signals into direct current. An energy management unit is used to convert the direct current into direct current suitable for use by the portable display device; The main control unit is used to control the energy harvesting mode of the wireless energy harvesting interface according to the application scenario. Specifically, it includes: when receiving an energy harvesting mode selection instruction provided by the portable electronic device, controlling the wireless energy harvesting interface to execute the corresponding energy harvesting mode according to the energy harvesting mode selection instruction; when receiving a fully active mode selection instruction, controlling the wireless energy harvesting interface to perform energy harvesting in a normal harvesting mode; when receiving a semi-active mode selection instruction, controlling the wireless energy harvesting interface to perform intermittent energy harvesting; and when receiving a passive mode selection instruction, controlling the wireless energy harvesting interface to perform energy harvesting based on a periodic detection signal, wherein the periodic detection signal is provided by the portable electronic device. When the interface for providing the wireless energy signal of the portable electronic device needs to be occupied by other devices, if the portable display device meets the upper limit of the power consumption threshold, the energy acquisition mode is to acquire periodic detection signal energy, which is provided by the portable electronic device.

2. The portable display device as described in claim 1, characterized in that, The portable display device also includes an ultra-thin energy storage device; the thickness of the ultra-thin energy storage device does not exceed a specified thickness value. Correspondingly, the energy management unit is also used to control the charging and discharging of the ultra-thin energy storage device.

3. The portable display device as described in claim 2, characterized in that, The wireless communication interface of the portable display device and the wireless energy harvesting interface form a combined interface.

4. The portable display device as described in claim 3, characterized in that, The step of controlling the energy harvesting mode of the wireless energy harvesting interface according to the application scenario includes: The energy harvesting mode of the wireless energy harvesting interface is controlled according to the power of the ultra-thin energy storage device.

5. The portable display device as described in claim 4, characterized in that, The step of controlling the energy harvesting mode of the wireless energy harvesting interface based on the power of the ultra-thin energy storage device includes: When the power of the ultra-thin energy storage device is lower than the lower power threshold, the wireless energy acquisition interface is controlled to perform energy acquisition in the normal acquisition mode. When the power of the ultra-thin energy storage device reaches the lower power threshold, the wireless energy harvesting interface is controlled to perform intermittent energy harvesting. When the power of the ultra-thin energy storage device reaches the upper limit threshold, the wireless energy harvesting interface is controlled to harvest energy based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device.

6. The portable display device as described in claim 5, characterized in that, The duration of the intermittent energy harvesting is positively correlated with the amount of electricity in the ultra-thin energy storage device.

7. The portable display device as claimed in claim 1, characterized in that, The wireless energy harvesting interface includes any one or more of the following: NFC wireless energy harvesting interface; Qi wireless energy harvesting interface.

8. The portable display device as claimed in claim 1, characterized in that, The portable display device also includes: A sensor array is used to collect the status and / or environmental parameters of the portable display device in real time; Accordingly, the main control unit is used to adjust the working mode of the portable display device according to the state, and / or to output and display the environmental parameters in real time at a designated display position of the display array.

9. The portable display device as claimed in claim 1, characterized in that, The portable display device includes a mobile phone case.

10. A control method for a portable display device, characterized in that, include: Determine the application scenarios for portable display devices; Controlling the energy harvesting mode of the wireless energy harvesting interface of the portable display device according to the application scenario specifically includes: when receiving an energy harvesting mode selection instruction provided by the portable electronic device, controlling the wireless energy harvesting interface to execute the corresponding energy harvesting mode according to the energy harvesting mode selection instruction; when receiving a fully active mode selection instruction, controlling the wireless energy harvesting interface to perform energy harvesting in a normal harvesting mode; when receiving a semi-active mode selection instruction, controlling the wireless energy harvesting interface to perform intermittent energy harvesting; when receiving a passive mode selection instruction, controlling the wireless energy harvesting interface to perform energy harvesting based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device; When the interface for providing the wireless energy signal of the portable electronic device needs to be occupied by other devices, if the portable display device meets the upper limit of the power consumption threshold, the energy acquisition mode is to acquire periodic detection signal energy, which is provided by the portable electronic device.

11. The control method as described in claim 10, characterized in that, The portable display device also includes an ultra-thin energy storage device; the thickness of the ultra-thin energy storage device does not exceed a specified thickness value. Correspondingly, the energy management unit is also used to control the charging and discharging of the ultra-thin energy storage device.

12. The control method as described in claim 11, characterized in that, The wireless communication interface of the portable display device and the wireless energy harvesting interface form a combined interface.

13. The control method as described in claim 12, characterized in that, The step of controlling the energy harvesting mode of the wireless energy harvesting interface according to the application scenario includes: The energy harvesting mode of the wireless energy harvesting interface is controlled according to the power of the ultra-thin energy storage device.

14. The control method as described in claim 13, characterized in that, The step of controlling the energy harvesting mode of the wireless energy harvesting interface based on the power of the ultra-thin energy storage device includes: When the power of the ultra-thin energy storage device is lower than the lower power threshold, the wireless energy acquisition interface is controlled to perform energy acquisition in the normal acquisition mode. When the power of the ultra-thin energy storage device reaches the lower power threshold, the wireless energy harvesting interface is controlled to perform intermittent energy harvesting. When the power of the ultra-thin energy storage device reaches the upper limit threshold, the wireless energy harvesting interface is controlled to harvest energy based on a periodic detection signal; the periodic detection signal is provided by the portable electronic device.

15. The control method as described in claim 14, characterized in that, The duration of the intermittent energy harvesting is positively correlated with the amount of electricity in the ultra-thin energy storage device.

16. A wireless transmission system, characterized in that, The wireless transmission system includes a portable electronic device and a portable display device as described in any one of claims 1-9.

17. A computer storage medium having a computer program stored thereon, characterized in that, The computer program is executed by the processor to perform the control method according to any one of claims 10-15.

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