Power bank for visual impairment user and electric quantity prompting method thereof

Abstract

The invention relates to the technical field of energy storage, and particularly discloses a power bank for users with visual impairment and an electric quantity prompting method thereof.The power bank comprises a power bank body, and a first braille display module is arranged on the power bank body; the first braille display module comprises a plurality of salient point units which can be independently controlled to protrude and retract, and the first braille display module is used for representing the electric quantity interval through the protruding combination of the plurality of salient point units. The first braille display module is not influenced by light and environmental noise, and no matter in a dark environment, a noisy scene or a quiet place, a user with visual impairment can quickly perceive the number of bumps through fingertip touch so as to judge the electric quantity interval, so that barrier-free use experience of touching at any time and knowing immediately is realized.

Description

Technical Field

[0001] This invention belongs to the field of portable energy storage technology, and in particular relates to a power bank for visually impaired users and a method for indicating the power level of the power bank. Background Technology

[0002] With the widespread use of mobile devices, power banks, as portable energy storage devices, have become an essential item for people's daily travel, and their power display function directly affects the user experience. Currently, most power banks on the market adopt a visually-dependent power display method, which includes LED indicator lights, digital tubes, or LCD screens, providing intuitive visual feedback on the remaining power.

[0003] However, these traditional display methods have significant limitations, especially in meeting the core needs of visually impaired users. Visually impaired individuals cannot obtain battery information through visual means, making it difficult for them to judge the remaining battery level and charging progress when using power banks, which can easily lead to device power outages or overcharging.

[0004] A few high-end power banks have added voice prompt functions. For example, Chinese patent application CN202410882992.9 discloses a low battery automatic reminder system for a power bank, including: a low battery reminder chip for detecting battery status; a vibration module for reminding the user by vibration when the battery level is below a preset threshold; an LED indicator for flashing at a specific frequency when the battery level is below the preset threshold; a speaker for playing low battery voice prompts; a volume switch for adjusting or turning off the voice prompt volume; and an intelligent charging management system for optimizing charging efficiency and power management.

[0005] Although existing high-end power banks have voice prompts, these prompts are often inaudible in noisy environments or quiet places like libraries or classrooms, which can disturb others. Summary of the Invention

[0006] The purpose of this invention is to provide a power bank for visually impaired users and a method for indicating the power level thereon, which partially solves or alleviates the above-mentioned deficiencies in the prior art and enables the display of the power level range through touch.

[0007] To solve the aforementioned technical problems, the present invention specifically adopts the following technical solution: A first aspect of the present invention provides a method for indicating the battery level of a power bank. The power bank includes: a power bank body, a control module disposed within the power bank body, a first Braille display module and a voice broadcast module electrically connected to the control module disposed on the power bank body, and an operation button for switching battery level indication modes; the first Braille display module includes a plurality of independently controllable protrusion and retraction dot units, used to represent different battery level ranges through combinations of protrusions of the plurality of dot units, wherein a pressure sensor is disposed on a reference dot unit; and an operation button disposed on a second side of the power bank body and electrically connected to the control module. Accordingly, the battery level indication method specifically includes the following steps: In response to the first interaction between the user and the operation button, the operation button is controlled to switch from the initial state to the power display mode switching state. In the power display mode switching state, the power display mode is switched in response to the second interaction between the user and the operation button; the power display modes include: voice broadcast mode, Braille display mode and dual-mode mode; Furthermore, when switching to the Braille display mode, in response to the third interaction between the user and the operation buttons, the first Braille display module is controlled to display the current battery level range; and in response to the fifth interaction between the user and the raised reference bump unit, the voice broadcast module is controlled to broadcast the current battery level; the fifth interaction includes: the user presses the reference bump unit equipped with a pressure sensor twice, so that the control module controls the voice broadcast module to broadcast the current battery level based on the pressure data detected by the pressure sensor.

[0008] In some embodiments, the step of the control module controlling the voice broadcast module to broadcast the current battery level based on the pressure data detected by the pressure sensor specifically includes: Determine whether the duration of the first press reaches a first duration threshold and whether the duration of the second press reaches a second duration threshold, wherein the second duration threshold is less than the first duration threshold; If the duration of the first press is greater than or equal to the first duration threshold, and the duration of the second press is greater than or equal to the second duration threshold, and the pressure values ​​of the two presses are greater than a preset pressure threshold, the voice broadcast module is triggered to broadcast the current battery level.

[0009] In some embodiments, the battery level indicator method further includes the step of: when switching to the voice broadcast mode, in response to a third interaction between the user and the operation button, the control module controls the voice broadcast module to voice broadcast the current battery level; Alternatively, when switching to dual mode, in response to a third interaction between the user and the operation buttons, the control module controls the first Braille display module to display the current battery level range while simultaneously controlling the voice broadcast module to announce the current battery level.

[0010] In some embodiments, the battery level indicator method further includes: a second Braille display module electrically connected to the control module; correspondingly, the battery level indicator method further includes the step of: When switching to the Braille display mode, the control module also controls a raised dot unit in the second Braille display module to rise, indicating that the current mode is the Braille display mode; Alternatively, when switching to the voice broadcast mode, the control module also controls another raised dot unit in the second Braille display module to rise, in order to indicate that the current mode is the voice broadcast mode; Alternatively, when switching to dual mode, the control module also controls the two raised dot units in the second Braille display module to rise simultaneously to indicate that the current mode is dual mode.

[0011] In some embodiments, the method further includes the step of: In the Braille display mode, in response to the fifth interaction between the user and the raised dot unit, the control module controls the voice broadcast module to broadcast the current battery level.

[0012] In some embodiments, the battery level indicator method further includes the step of: In the Braille display mode, in response to the seventh interaction between the user and the first Braille display module, the control module controls the voice broadcast module to broadcast the current battery level, and / or the first Braille display module to display the current battery level range; Alternatively, in response to an eighth interaction between the user and the first Braille display module, the control module controls the voice broadcast module to broadcast the current battery level display mode, or / and the second Braille display module drives the corresponding number of raised dot units to rise to display the current battery level display mode.

[0013] A second aspect of the present invention provides a power bank for visually impaired users, comprising a power bank body, a first Braille display module disposed on a first side of the power bank body; the first Braille display module includes a plurality of independently controllable protrusion and retraction dot units, used to represent different power ranges through the protrusion combination of the plurality of dot units, wherein a pressure sensor is disposed on a reference dot unit; further comprising a voice broadcast module for prompting information and accurately broadcasting power level; and a control module electrically connected to the power bank body, the first Braille display module and the voice broadcast module; further comprising an operation button disposed on a second side of the power bank body and electrically connected to the control module, wherein the power level display mode can be switched by interacting with the operation button; The control module includes: The working state switching unit is configured to respond to the first interaction between the user and the operation button, and control the operation button to enter the power display mode switching state from the initial state. The battery level indicator mode switching unit is configured to, in response to a second interaction between the user and the operation button, control the switching of the battery level display mode during the battery level display mode switching state. The battery level display modes include: voice broadcast mode, Braille display mode, and dual-mode mode. When switching to the Braille display mode, in response to a third interaction between the user and the operation button, the first Braille display module is controlled to display the current battery level range. Alternatively, when switching to the voice broadcast mode, in response to a third interaction between the user and the operation button, the voice broadcast module is controlled to voice-announce the current battery level. Alternatively, when switching to dual-mode mode, in response to a third interaction between the user and the operation button, the first Braille display module is controlled to display the current battery level range while the voice broadcast module voice-announces the current battery level.

[0014] In some embodiments, the control module further includes: The battery level indicator auxiliary unit is configured to, when the current mode is Braille display, respond to the fifth interaction between the user and the reference bump unit in the first Braille display module, control the voice broadcast module to broadcast the current battery level; specifically, the fifth interaction includes: the user presses the reference bump unit equipped with a pressure sensor twice, so that the control module controls the voice broadcast module to broadcast the current battery level based on the pressure data detected by the pressure sensor.

[0015] In some embodiments, the fifth interaction method includes: the user presses the reference protrusion unit equipped with a pressure sensor twice, and accordingly, the battery level indicator auxiliary unit specifically determines whether the duration of the first press reaches a first duration threshold and whether the duration of the second press reaches a second duration threshold, wherein the second duration threshold is less than the first duration threshold; if the duration of the first press is greater than or equal to the first duration threshold, and the duration of the second press is greater than or equal to the second duration threshold, and the pressure value of the two presses is greater than a preset pressure threshold, the voice broadcast module is triggered to broadcast the current battery level value.

[0016] In some embodiments, the battery level indicator auxiliary unit is further configured to stop broadcasting in response to a sixth interaction between the user and the operation button when the current mode is voice broadcasting.

[0017] In some embodiments, the power bank further includes a second Braille display module. Accordingly, the working state switching unit is further configured to control the second Braille display module to display the current power display mode in response to an eighth interaction between the user and the plurality of raised dot units when the second Braille display module is in the mode display state.

[0018] In some embodiments, the power bank further includes a pressure sensor disposed on each raised dot unit, and correspondingly, the power indication mode switching unit is further configured to: In the Braille display mode, in response to the user's fifth interaction with the raised dot unit, the voice broadcast module is controlled to broadcast the current battery level based on the pressure data sent by the pressure sensor.

[0019] In some embodiments, the battery level indicator mode switching unit is further configured to: Alternatively, in the Braille display mode, in response to a seventh interaction between the user and the raised dot unit, based on the pressure data sent by the pressure sensor, the control module controls the voice broadcast module to broadcast the current battery level, and / or the first Braille display module displays the current battery level range. Alternatively, in the Braille display mode, in response to the user's eighth interaction with the raised dot unit, the voice broadcast module is controlled to broadcast the current battery level display mode based on the pressure data sent by the pressure sensor.

[0020] In some embodiments, the proportion of raised dots in the first Braille display module is proportional to the power range.

[0021] In some embodiments, four bump units are used to display the battery level range. When all four bump units are raised, the battery level is between 75% and 100%. When three bump units are raised, the battery level is between 50% and 75%. When two bump units are raised, the battery level is between 25% and 50%. When one bump unit is raised, the battery level is below 25%. When no bump unit is raised, the battery level is 0%.

[0022] In some embodiments, the protrusion unit includes a retractable protrusion component and a locking mechanism for locking the protrusion component in an extended or retracted state; the locking mechanism includes a locking plate and a translation drive mechanism for driving the locking plate to translate; the tail end of the protrusion component is provided with a locking rod, and the side wall of the locking rod has a locking slot, so that when the locking plate translates, it can be inserted into the locking slot to lock the protrusion component in a retracted state or located at the rear end of the locking rod to lock the protrusion component in an extended state.

[0023] Beneficial Effects: This invention integrates a Braille display module (such as a first Braille display module) and a voice broadcast module into the traditional visual display module (such as a power indicator light) of a power bank. This broadens the power bank's applicability; for example, it can be used not only by visually impaired users but also by ordinary users, thus facilitating product promotion and implementation. It also avoids the stares that visually impaired users might receive when using specialized devices for the blind in public places. Specifically, while it provides multiple power level indication modes, and users can switch between modes according to their needs, offering a high degree of freedom—which is very convenient for ordinary users—it can be somewhat disruptive for visually impaired users. For example, on the one hand, visually impaired users may use the Braille display mode more frequently due to usage habits. On the other hand, in some practical scenarios, voice broadcasting may not be desirable, causing inconvenience to visually impaired users (e.g., broadcasting voice messages on the street may attract strange looks from surrounding people, and may also be difficult to hear due to surrounding noise; voice broadcasting is not possible in places like libraries). Therefore, to ensure better use for visually impaired users, this application combines Braille display mode and voice broadcasting mode, but also restricts the voice broadcasting mode. That is, in Braille display mode, if the user wants voice broadcasting at the same time, it can only be triggered by a specific triggering method. For example, pressing the reference raised dot unit twice (or pressing any other raised dot unit twice, and the pressure data reaches a preset threshold), rather than triggering voice broadcasting by switching modes, thus avoiding the awkward situation caused to visually impaired users in some scenarios where voice broadcasting occurs as soon as an operation button is pressed.

[0024] In addition, since it is a raised dot unit that is pressed, rather than an operation button, and the user can press it immediately after touching the raised dot unit, there is no need to fumble around to the other side of the power bank to press the operation button to switch modes and then press to trigger the voice broadcast module, which reduces the complexity of operation.

[0025] Furthermore, since the pressure sensor is located on the raised bump unit, and the raised bump unit is locked by the locking plate, the user does not receive any intuitive feedback during the pressing process (e.g., the feeling of the button being pressed). If it is just a simple press, on the one hand, the user can only know whether the trigger was successful after the voice broadcast. On the other hand, multiple voice broadcasts may be triggered due to accidental touches. Therefore, the application sets two press durations of one long and one short. At the same time, the voice broadcast module will only be triggered when the pressure reaches the preset threshold. This allows the user to determine that the corresponding interactive operation has been performed in this way, while also reducing voice broadcasts caused by accidental touches.

[0026] This invention uses a combination of raised dots to represent battery levels. The raised / retracted states of the dots are independently controlled based on real-time battery data. Each dot operates independently; that is, based on the current battery level range, a corresponding number of dots are driven to remain raised, while the remaining dots are retracted. This combination of raised dots forms a clear battery level indicator, replacing traditional visual displays. Compared to traditional visual displays, this first Braille display module is unaffected by light or ambient noise. Whether in a dark environment, a noisy scene, or a quiet place, visually impaired users can quickly perceive the number of raised dots by touch, thus determining the battery level range and achieving an accessible user experience with instant touch and awareness.

[0027] The invention also includes a voice broadcast module for providing prompts and accurate battery level readings; the power bank's battery level display mode can be set to voice broadcast mode, Braille display mode, and dual-mode mode; it also includes operation buttons on the power bank itself, allowing users to switch battery level display modes by interacting with the operation buttons, providing great convenience for visually impaired users.

[0028] Building upon the first Braille display module, the power bank for visually impaired users further adds a voice broadcast module and a multi-mode switching system, and enables interactive control through dedicated buttons to meet the power acquisition needs in different scenarios.

[0029] This invention provides a dual-path interaction between the operation buttons and the first Braille display module. It supports both short presses to check battery level and long presses to switch modes, and swiping the Braille module to check battery level / mode and light presses for mute / precise queries. Users can freely choose according to their hand position and scenario needs, without relying on a single operation method. All interaction methods have significantly different tactile sensations, allowing users to distinguish operations simply through fingertip touch, without visual assistance or complex learning. Simultaneously, an anti-accidental touch mechanism is incorporated to significantly reduce the probability of misoperation.

[0030] In integrating the Braille display module, since the multiple raised units of the Braille display module have a certain length (usually greater than the height and width of the power bank) and also have changes in raised and retracted states, this utility model arranges the raised units in the Braille display module horizontally. That is, the axis of the raised units is parallel to the axis (or length direction) of the power bank body, so that the raised units can protrude from the top of the power bank without increasing the height or width of the power bank. On the other hand, in order not to significantly change the existing layout design of the power bank and to suit the user's existing usage habits, the visual display module is placed on the first surface of the power bank, the operation buttons are located on the second side, and the charging interface, USB interface, speaker of the voice broadcast module, and Braille display module are all placed on the first side of the top of the power bank body. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale. Obviously, the drawings described below are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0032] Figure 1 This is an exploded view of the Braille power bank of the present invention.

[0033] Figure 2 This is a schematic diagram of the top structure of the Braille power bank of the present invention.

[0034] Figure 3 This is an enlarged view of the Braille display module.

[0035] Figure 4A This is a schematic diagram of the three-dimensional structure of the Braille display module.

[0036] Figure 4B A schematic diagram showing the installation of a pressure sensor on a protruding component.

[0037] Figure 4CA schematic diagram of a cover adapted to a protruding component, formed by enclosing the sensing element, electrodes, and insulator of a pressure sensor.

[0038] Figure 4D This is a schematic diagram showing the interaction between the pressure sensor and the conductor on the housing of the Braille display module.

[0039] Figure 5 This is a front view of the Braille power bank of the present invention.

[0040] Figure 6 This is a side view of the Braille power bank of the present invention.

[0041] Figure 7 This is a flowchart of an embodiment of the power bank power indicator method of the present invention.

[0042] Figure 8 This is a flowchart of another embodiment of the power bank power indicator method of the present invention.

[0043] Summary of reference numerals in the attached diagram: 1-Raised dot unit, 11-Raised dot component, 12-Reset spring, 13-Connecting rod, 14-Electromagnetic coil, 15-Permanent magnet, 16-Mounting base, 17-Reset spring II, 18-Locking plate, 19-Metal pin, 20-Base, 21-Locking rod, 101-Indicator light, 102-Bottom shell, 103-Upper shell, 4-Operation button, 105-USB port, 106-Charging interface, such as Type-C port, 107-Braille display module, 107-1-First Braille display module, 107-2-Second Braille display module, 108-Speaker sound hole, 109-PCB board, 110-Battery, 111-Speaker, 112-Light guide column, 113-Light guide column base, 114-Sensing component of pressure sensor, 115-Electrode; 116-Insulator. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0045] In this document, suffixes such as "module," "part," or "unit" used to denote elements are used only for the purpose of illustrative purposes and have no specific meaning in themselves. Therefore, "module," "part," or "unit" may be used interchangeably.

[0046] In this document, the terms "upper," "lower," "inner," "outer," "front," "rear," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In this document, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] In this document, "and / or" includes any and all combinations of one or more of the listed related items.

[0049] In this article, "multiple" means two or more, that is, it includes two, three, four, five, etc.

[0050] Example 1: This example provides a power bank for visually impaired users, including a power bank body, a control module disposed within the power bank body, and a Braille display module 107 and a voice broadcast module electrically connected to the control module. The Braille display module 107 includes several independently controllable protrusion and retraction units 1, such as... Figure 2 As shown.

[0051] Preferably, the Braille display module 107 is disposed on the first side of the power bank body. Specifically, the Braille display module 107 includes a first Braille display module 107-1, which includes a plurality of raised dot units 1, that is, the power range is represented by the combination of the raised dots of the plurality of raised dot units 1. Preferably, the first Braille display module 107-1 includes four raised dot units 1, and the axis of the raised dot units 1 is parallel to the axis / length direction of the power bank body, see [reference]. Figure 3 This allows the raised dot unit 1 to protrude through the through hole on the first side when it is raised, so that the user can know the current power range by touching the raised dot unit 1.

[0052] Specifically, the protrusion / retraction state of the protrusion unit 1 depends on the battery 110 (see...). Figure 1The real-time battery data is independently controlled, and the working state of each raised dot unit 1 does not interfere with each other. That is, the control module controls the corresponding number of raised dot units 1 in the first Braille display module 107-1 to remain in a raised / raised state according to the current battery level range, while the remaining raised dot units 1 are in a retracted state. The combination of the number of raised dot units 1 forms a clear battery level range indicator, replacing the traditional visual display method. Compared with the traditional single visual display, this first Braille display module 107-1 is not affected by light or environmental noise. Whether in a dark environment, a noisy scene, or a quiet place, visually impaired users can quickly perceive the number of raised dots by touching them with their fingertips, and thus determine the battery level range, achieving an accessible user experience of touching and knowing instantly at any time.

[0053] like Figure 4A As shown, in some embodiments, the protrusion unit includes a retractable protrusion component 11 and a locking mechanism for locking the protrusion component 11 in an extended or retracted state; the protrusion component 11 is driven to extend or retract by a telescopic drive mechanism. The locking mechanism includes a locking plate 18 and a translation drive mechanism for driving the locking plate 18 to translate; a locking rod 21 is provided at the tail end of the protrusion component 11, and the locking rod 21 has a locking slot on its side wall, so that when the locking plate 18 translates, it can be inserted into the locking slot to lock the protrusion component 11 in a retracted state, or located at the rear end of the locking rod 21 to lock the protrusion component 11 in an extended state.

[0054] Specifically, a locking rod 21 is connected to the rear end of the permanent magnet 15. Alternatively, the locking rod 21 can be formed by the connecting rod 13 passing through the permanent magnet 15. The locking rod 21 has a locking slot on its side wall. When the locking plate 18 moves horizontally, it can extend into the locking slot to lock the permanent magnet 15; or, when the protrusion component 11 extends out of the outer shell 22, the locking plate 18 moves horizontally to a position behind the locking rod 21 to prevent the permanent magnet 15 from resetting.

[0055] Of course, the structure of the locking mechanism can be varied, and its purpose is to lock the position of the protrusion component 11 so that it can maintain its position without continuous power supply.

[0056] Specifically, the locking rod 21 is axially connected to the permanent magnet 15 and perpendicular to the plane where the locking plate 18 is located. Driven by the translation drive mechanism, the locking plate 18 can perform linear reciprocating translational motion. When it moves below the locking rod 21 or into the locking slot, the protrusion component 11 is locked, preventing it from resetting. When the locking plate 18 disengages from the locking rod 21, the protrusion component 11 resets under the action of the return spring 12. Due to the existence of the locking mechanism, after being locked, its electromagnetic coil 14 can stop supplying power, and there is no possibility of it being pressed back into place when touched.

[0057] The locking plate 18 locks the protruding part 11 in its initial position (i.e., before the electromagnetic coil 14 drives the permanent magnet 15 to move). This is because its operating conditions are not limited to horizontal placement with the front facing up; they may also include placement with the front facing down or subject to bumps. Even in its initial position, the protruding part 11 may not remain in that position due to gravity or inertia, potentially protruding or producing abnormal noise. Of course, to allow the locking plate 18 to reset more effectively, a reset elastic component, such as a reset spring II 17, can be provided.

[0058] The telescopic drive mechanism includes a permanent magnet 15 disposed between the protrusion component 11 and the locking rod 21, and an electromagnetic coil 14 that interacts with the permanent magnet 15 to drive the permanent magnet to move; the telescopic drive mechanism also includes a return spring 12 for driving the protrusion component 11 to reset.

[0059] Specifically, the protrusion component 11 is axially connected to the permanent magnet 15 via the connecting rod 13, so that the protrusion component 11, the connecting rod 13 and the permanent magnet 15 are integrated; when the permanent magnet 15 moves, the protrusion component 11 also moves in conjunction.

[0060] The telescopic drive mechanism also includes an electromagnetic coil 14 that interacts with the permanent magnet 15 to drive its movement. In this embodiment, the electromagnetic coil 14 is sleeved around the permanent magnet 15. When the electromagnetic coil 14 is energized, it generates a magnetic force that repels the permanent magnet 15, thereby pushing the permanent magnet 15 so that the protrusion member 11 extends outside the housing. Metal pins 19 are connected to the electromagnetic coil 14 for connection to the PCB. Additionally, the electromagnetic coil 14 is fixed to the mounting base 16.

[0061] A return spring 12 is fitted onto the connecting rod 13 to reset the protrusion component 11. The elastic force generated by the return spring 12 is opposite in direction to the repulsive force on the permanent magnet 15. When setting the return spring 12, one end of the return spring 12 can act on the permanent magnet 15, and the other end can act on the partition plate of the outer casing. Of course, other methods of setting the return spring 12 can also be selected, as long as they can satisfy the reset of the protrusion component 11.

[0062] In this embodiment, the proportion of raised dot units 1 in the first Braille display module 107-1 is proportional to the power range. Specifically, the first Braille display module 107-1 has four raised dot units 1 used to display the power range. Four raised dot units 1 indicate a power range of 75%-100%, three raised dot units 1 indicate a power range of 50%-75%, two raised dot units 1 indicate a power range of 25%-50%, one raised dot unit 1 indicates a power range below 25%, and no raised dot unit 1 indicates a power range of 0%. When the first Braille display module needs to display the power range, one raised dot unit 1 will be raised in all four ranges. Therefore, this raised dot unit 1 is used as the reference raised dot unit. For example, the raised dot unit 1 in the first row and first column of the four raised dot units 1 arranged in two rows and two columns is used as the reference raised dot unit.

[0063] In other embodiments, the Braille display module 107 further includes a backup extended bump, for example, which can be used to display the current battery level display mode in a second Braille display module 107-2 (see [link]). Figure 3 Alternatively, when users require a more precise range of battery levels, it can be used together with the first Braille display module 107-1 to display battery levels, for example, in increments of 16.7%. Two spare bumps can be enabled, expanding the total number of bumps to six. In this case, one bump corresponds to 16.7% battery level, achieving a precise mapping of 6 bumps for 100%, 5 for 83.3%, ..., 1 for 16.7%, and 0 for 0%, adapting to scenarios with higher requirements for battery level accuracy.

[0064] In some embodiments, the power bank for visually impaired users further includes a voice broadcast module for providing prompts and accurately reporting battery level, which is electrically connected to the control module described above; the power bank's battery display mode can be set to voice broadcast mode, Braille display mode, and dual-mode mode; it also includes operation buttons 4 (see [link to relevant documentation]) located on the side wall of the power bank body. Figure 1 and Figure 6 The battery display mode can be switched by interacting with the operation button 4.

[0065] Based on the first Braille display module 107-1, the power bank for visually impaired users further adds a voice broadcast module and a multi-mode switching system, and realizes interactive control through a dedicated operation button 4 to solve the power acquisition needs in different scenarios.

[0066] The voice broadcast module consists of a high-performance miniature speaker 111, a voice processing chip, and a speaker outlet 108, all integrated inside the power bank body. The speaker outlet 108 is preferably located on the top or side of the power bank body to avoid obstruction. The voice processing chip pre-stores accurate power level broadcast voice messages such as "Current power level is 72%".

[0067] In voice mode or dual-mode, the voice broadcast module, once triggered, directly broadcasts the specific battery level value rather than the range, solving the problem that the Braille display module only knows the range and not the precise value, thus meeting the user's need for accurate battery level readings.

[0068] In this embodiment, the power bank is designed with three switchable power display modes, which users can freely choose according to their usage scenarios and personal preferences.

[0069] The voice broadcast mode is a single audio output mode. When triggered, it only pushes accurate battery values ​​or related prompts through the voice broadcast module, allowing users to quickly obtain accurate battery information through hearing.

[0070] The Braille display mode is a single tactile output mode. Upon triggering, it only drives the raised dot unit 1 of the first Braille display module 107-1 to rise (or drives the raised dot unit 1 and the spare extended raised dots in the first Braille display module 107-1). The number of raised / rising raised dot units 1 provides feedback on the current battery level range (the battery level range can be automatically obtained by the control module based on the current battery level of the energy storage module, such as the battery). In quiet places such as libraries, classrooms, and conference rooms, or in noisy environments where users cannot hear clearly, this mode avoids disturbing others with voice announcements and allows for battery level checks in silent mode.

[0071] The dual-mode output mode combines voice broadcasting and Braille display modes. Upon triggering, the voice broadcasting module and the Braille display module 107 start simultaneously, broadcasting the accurate battery level and displaying the battery level range. This mode is suitable for users who need to double-check the battery level.

[0072] The operation button 4, located on the power bank itself, is the interactive component for mode switching and power level indication. Interacting with operation button 4 allows for a cyclical switching between three modes: voice broadcast mode → Braille display mode → dual-mode mode → a sequential cycle of the three modes. Furthermore, upon successful switching, the voice broadcast module provides feedback on the current mode, such as switching to Braille display mode, allowing users to confirm the switch result. Alternatively, if the power bank has not been used for a long time and the current power level display mode is unknown, the voice broadcast can confirm the current mode. In any mode, interacting with operation button 4 will trigger the corresponding power level indication, making the operation simple, intuitive, and easy to learn.

[0073] More specifically, in this embodiment, the operation button 4 can also function as other function buttons, meaning its working state includes other function working states and power display mode switching states. Therefore, interaction with the operation button 4 is required to switch its working states. Specifically, in response to the user's first interaction with the operation button 4, such as pressing and holding for 3 seconds, the control module controls the operation button 4 to enter the power display mode switching state. Pressing and holding for 3 seconds is a pre-command to initiate the switching, the purpose of which is to clearly distinguish it from other functions (such as pressing and holding for more than 5 seconds to turn the device on / off), and to avoid accidentally initiating the mode switching in daily operation; visually impaired users can confirm the switching state by silently counting to 3 seconds, through voice feedback, or through feedback from the second Braille display module in the Braille display module (as in the following embodiment). The power display mode switching state lasts for 10 seconds. If no subsequent specific switching operation is performed within 10 seconds, the system automatically exits the power display mode switching state, and the ice voice prompts "Exited mode switching state," avoiding energy waste. Once the switch is complete, if the user stops dialing, the system will automatically exit the switching state after 10 seconds, or the user can press the operation button 4 again to exit directly and trigger the current mode's battery level indicator.

[0074] In some embodiments, the operation button 4 integrates both pressing and tossing functions. When the user interacts with the operation button 4 a second time, such as by tossing the button, the control module controls the switching of the power display mode in response to the second interaction: a cycle of voice broadcast mode → Braille display mode → dual-mode mode → voice broadcast mode, with each tossing switch only one mode to avoid user confusion caused by continuous switching. After each switch, the voice broadcast module immediately announces the current mode, such as "Currently switched to Braille display mode". Of course, in other embodiments, the operation button 4 can also be equipped with two types of buttons to respectively realize the pressing and tossing functions: one is a pressable button, and the other is a tossing button.

[0075] In some embodiments, although the bump unit 1 can remain in a raised state without power supply, being in a raised state all the time may make the bump unit 1 susceptible to being snagged or bumped during use, thus causing damage. Therefore, to avoid this problem, the bump unit 1 is automatically reset after being raised for a specified time (just long enough for a normal user to touch it).

[0076] Designed for visually impaired users, to minimize user operation steps, when the user interacts with the operation button to switch modes, a battery level indicator is simultaneously displayed. Specifically, in the circuit-indicated mode switching state, the user presses the operation button to switch modes. If switching to Braille display mode, the voice broadcast module immediately announces the current mode, such as "Currently switched to Braille display mode"; simultaneously, the first Braille display module automatically displays the current battery level range. If switching to voice display mode, the voice broadcast module immediately announces the current mode, such as "Currently switched to Braille display mode," and simultaneously announces the current battery level. If switching to a dual-mode system, the voice broadcast module immediately announces the current mode, such as "Currently switched to dual-mode," while the first Braille display module automatically displays the current battery level range, and the voice broadcast module announces the current battery level.

[0077] However, since the raised dot units of the first Braille display module only rise for a short period of time, some visually impaired users with limited hand dexterity (e.g., in crowded places where one-handed operation is inconvenient) may not have enough time to notice how many raised dot units have risen. Alternatively, in noisy environments, the user may miss the battery level indicator because the voice announcement has finished before the user brings the power bank to their ear. Therefore, as mentioned earlier, in any mode, the user can also interact with the operation button 4 in a third way, such as by briefly pressing the button. Correspondingly, in response to this third interaction, the control module controls the voice announcement module to announce the accurate battery level, and / or the first Braille display module 107-1 to display the current battery level range. Specifically, based on the currently set battery display mode, the corresponding module is triggered to operate: If the current mode is voice broadcast, when the user presses operation button 4 (i.e., performs the third interactive operation), the control module controls the voice broadcast module to clearly broadcast the current battery level, i.e., the accurate battery value, such as "the current battery level is 86%". If the current mode is Braille display, when the user presses operation button 4 (i.e., performs the third interactive operation), the control module controls the corresponding number of raised dot units 1 in the first Braille display module 107-1 to rise, such as 75%-100% corresponding to 4 raised dot units. Furthermore, the raised dot unit 1 only remains raised for a short period to allow sufficient time for the user to touch and confirm before automatically retracting. To ensure the user has sufficient time to touch all the raised dot units 1, preferably, the raised dot units will remain raised for a certain period, such as 8-10 seconds. If the current mode is dual-mode, when the user presses operation button 4 (i.e., performs the third interactive operation), the voice broadcast of the accurate battery level and the Braille display of the battery level range will start simultaneously, providing dual protection for obtaining battery information.

[0078] Although dual modes are set, if it is always in dual mode, it consumes more power than single mode. For power banks with limited energy storage, dual mode is usually activated relatively infrequently. While the single Braille display mode can show the specific power range, it cannot provide an accurate power value. Therefore, in Braille display mode, when users need to know the power level accurately but do not want to consume more power by activating dual mode (for example, when the power bank's power level is low), they can interact with the raised dot unit 1 in the first Braille display module 107-1 to temporarily trigger the voice broadcast module to announce the current power level.

[0079] For example, when a user performs a fifth interaction with any of the raised bump units 1, such as by double-pressing any of the raised bump units 1, the control module controls the voice broadcast module to broadcast the accurate battery level in response to the fifth interaction performed by the user with any of the raised bump units 1.

[0080] Normally, when the battery is fully charged, people don't want to know the exact battery level. However, once the battery level drops to a certain threshold, people become very concerned about the exact battery level. Therefore, in some embodiments, when a user interacts with any of the raised bump units 1 for the fifth time, the control module first determines whether the current battery level is lower than a preset remaining battery level threshold (e.g., lower than 25%). If so, it controls the voice broadcast module to broadcast the accurate battery level; otherwise, even if the user interacts with the raised bump unit 1 for the fifth time, no operation is performed.

[0081] Specifically, when a user touches the raised dot unit 1 in the first Braille display module 107-1 to sense the battery level range, if the user lightly presses any raised dot unit 1 twice with their fingertip within 8-10 seconds while the dot unit 1 remains raised, the control module will trigger the voice broadcast module to play the accurate battery level value, obtaining precise information as needed. For example, a pressure sensor can be set on the raised dot unit 1 to sense whether it is being pressed, and the sensed pressure data is sent to the control module for judgment. If the pressure is greater than a preset value, the voice broadcast module will be controlled to broadcast the information; otherwise, the voice broadcast module will not be triggered, thus preventing frequent triggering of the voice broadcast function due to accidental touches to a certain extent. It can be seen that the raised dot unit 1 simultaneously undertakes display and interaction functions. After the user touches the raised dot sensing area, they can directly complete the double-press operation at the current touch position without moving their fingertip. The process is seamless and conforms to the habits of visually impaired users who operate immediately after tactile positioning.

[0082] Furthermore, in certain special circumstances, such as being in a quiet environment but forgetting to switch the voice broadcast mode to Braille display mode before entering, and then directly pressing operation button 4 upon entering, triggering voice broadcast but requiring immediate cessation of the broadcast, the user can also stop the voice broadcast by interacting with operation button 4. For example, in voice broadcast mode, in response to the user's sixth interaction with operation button 4, such as pressing it three times, the control module controls the voice broadcast module to immediately stop broadcasting.

[0083] If a user needs to stop the voice broadcast immediately for any reason during the broadcast, they can simply press the operation button 4 three times in quick succession. The process is smooth and conforms to tactile interaction habits.

[0084] In some embodiments, the power bank body also includes a PCB board 109 for integrating a control module (see...). Figure 1 The charging interface is electrically connected to the control module on the PCB board 109 and is used for power input and output; specifically, it includes a USB port for power output and a Type-C port for power input and output.

[0085] Specifically, when the control module on the PCB board 109 detects that the charging interface is connected to a charging power source, it controls the voice broadcast module to broadcast a charging prompt tone; when it detects that the battery 110 is fully charged, it controls the voice broadcast module to broadcast a full charge prompt tone; when the control module on the PCB board detects that the battery 110's charge level is below a threshold during the discharge process, it controls the voice broadcast module to broadcast a low charge prompt tone.

[0086] Preferably, in order to minimize changes to the existing structure of the power bank, the Braille display module 107, USB port 105, speaker sound hole 108, and charging interface 106 are all located on the first side of the power bank body. The charging interface 106 is located at the center of the first side, and speaker sound holes 108 are respectively provided on both sides of the charging interface 106. The USB port 105 and the Braille display module 107 are respectively located on one side of the two speaker sound holes, and the Braille display module 107 is located close to the second side connected to the first side (the operation button 104 is located on the second side).

[0087] In this embodiment, the power bank body is also provided with a power indicator light 101 as a visual display module (see [link]). Figure 5 This section displays the current power bank level using lights. Preferably, four indicator lights 101 are used, each representing 25% of the power level. When the power bank is charging, the last indicator light 101 will flash. For example, when the power bank is charged to more than 50% but not yet 75%, the third indicator light 101 will flash, while the first and second indicator lights 101 will remain lit.

[0088] See Figure 1 The power bank body has a light guide post 112 and a light guide post base 113 for mounting the light guide post 112, which is used to transmit the LED light source on the PCB board 109 to form the power indicator light 101.

[0089] See Figure 1 and 6 In addition, it includes a bottom shell 102 and an upper shell 103 for encapsulating the aforementioned components. The upper shell 103 is provided with a through hole for the light guide post 112 to pass through.

[0090] In some embodiments, the control module specifically includes: The working state switching unit is configured to respond to the first interaction between the user and the operation button (such as a long press for 3 seconds) and control the operation button to enter the power display mode switching state from the initial state. The power display mode switching unit is configured to respond to a second interaction method between the user and the operation buttons (as described above, toggle buttons). The control module controls the switching of power display modes. The power display modes include: voice broadcast mode, Braille display mode, and dual-mode mode. When the power display mode switching unit switches the current power display mode to the Braille display mode, it controls the first Braille display module to display the current power range (furthermore, the voice broadcast module can also broadcast the current power prompt mode simultaneously). Alternatively, when the power display mode switching unit switches the current power display mode to the voice broadcast mode, it controls the voice broadcast module to broadcast the current power level. Alternatively, when the power display mode switching unit switches the current power display mode to dual-mode, it controls the first Braille display module to display the current power range while simultaneously controlling the voice broadcast module to broadcast the current power level (furthermore, the voice broadcast module can also broadcast the current power prompt mode simultaneously).

[0091] In other embodiments, the aforementioned power display mode switching unit is configured to respond to a second interaction between the user and the operation buttons, wherein the control module controls the switching of the power display mode; and when the power display mode switching unit switches the current power display mode to the Braille display mode, in response to a third interaction between the user and the operation buttons, the first Braille display module is controlled to display the current power range; or, when the power display mode switching unit switches the current power display mode to the voice broadcast mode, in response to a third interaction between the user and the operation buttons, the voice broadcast module is controlled to voice broadcast the current power; or, when the power display mode switching unit switches the current power display mode to dual mode, in response to a third interaction between the user and the operation buttons, the first Braille display module is controlled to display the current power range while the voice broadcast module voice broadcasts the current power.

[0092] In other embodiments, the control module further includes a power level indicator unit, configured to, in the Braille display mode, control the voice broadcast module to broadcast the current power level in response to a fifth interaction between the user and any of the raised dot units 1 (such as pressing any of the raised dot units 1 twice in the raised state); or, when the current mode is voice broadcast, the voice broadcast module stops broadcasting in response to a sixth interaction between the user and the operation buttons (such as pressing any of the raised dot units three times in the raised state).

[0093] Specifically, in the Braille display mode, the pressure sensor on each raised unit 1 (e.g., a pressure sensor is provided on the raised component 11) controls the voice broadcast module to broadcast the current battery level or stop broadcasting based on the pressure data sent by the pressure sensor. The pressure data is generated when the user interacts with at least one raised unit in the fifth / sixth interaction mode.

[0094] In this embodiment, to prevent accidental activation of the pressure sensor and triggering of voice announcement, the control module only collects pressure data from the pressure sensors on each raised dot unit 1 in the Braille display mode, and only when the corresponding raised dot unit is detected to be raised. Based on this pressure data, the control module triggers the voice announcement module (for example, if the pressure values ​​of two presses are both greater than a preset threshold, the voice announcement module announces the current battery level). If the pressure sensor of a dot unit without a raised dot unit is accidentally touched, the control module will not collect its pressure data and therefore will not trigger a voice announcement.

[0095] In some embodiments, since each protrusion unit 1 is provided with a pressure sensor, the fifth interaction method with at least one raised / protruding protrusion unit specifically includes: pressing any raised protrusion unit twice; or, when only one protrusion unit 1 is raised, the method of pressing twice is adopted, while when two or more protrusion units are raised, two of the protrusion units need to be pressed at the same time, and the number of presses is one for each. However, the pressure value generated by the press needs to reach a preset threshold before the voice broadcast module is triggered. That is, the control module receives the pressure data sent from the pressure sensors of the two protrusion units, and the pressure data meets the standard before the voice broadcast module is triggered to perform voice broadcast.

[0096] In other embodiments, since the reference bump unit will protrude for each power range, the voice broadcast module will only be triggered to broadcast voice information when the user interacts with the reference bump unit in the fifth interaction mode, as described above, by pressing twice, and the pressure value of the two presses is greater than a preset threshold.

[0097] Furthermore, since the raised dot unit is locked by the locking plate, there is no direct feedback mechanism when the user presses it. The success of the trigger can only be determined by whether a voice broadcast is heard. Therefore, to assist the user in making the judgment and to prevent accidental touches, the duration of the two presses is different. For example, the user presses for a first duration and then presses for a second duration, with the second duration being shorter than the first duration. Accordingly, the battery level indicator auxiliary unit specifically determines whether the duration of the first press reaches the first duration threshold and whether the duration of the second press reaches the second duration threshold, where the second duration threshold is less than the first duration threshold. If the duration of the first press is greater than or equal to the first duration threshold, and the duration of the second press is greater than or equal to the second duration threshold, and the pressure value of both presses is greater than a preset pressure threshold, the voice broadcast module is triggered to broadcast the current battery level value. Of course, in other embodiments, a short and long press method can also be used to trigger the voice broadcast module. That is, the second duration is greater than the first duration, and the pressure values ​​of the two presses are both greater than the preset pressure threshold before the voice broadcast module is triggered.

[0098] Example 2: The present invention also provides another power bank, which includes the modules of the above embodiments. The difference is that the Braille display module in this embodiment further includes a second Braille display module 107-2, which is electrically connected to the control module. Preferably, the second Braille display module 107-2 includes two raised dot units 1, see [link to previous example]. Figure 3 .

[0099] Correspondingly, after each switch, the current battery display mode may not be announced via voice; instead, the mode indicator may be displayed synchronously by the second Braille module 107-2. For example, one raised dot unit 1 rising indicates voice mode, another raised dot unit 1 rising indicates Braille mode, and both raised dot units 1 rising simultaneously indicates dual-mode mode. Of course, the second Braille display module 107-2 may also display the mode indicator synchronously while announcing the current mode via voice.

[0100] In other embodiments, the operation button 4 also integrates touch functionality (for example, an FPC flexible circuit board for data communication with the control module can be set on the operation button 4). When the user slides the touch button 4 from left to right, i.e., when the user interacts with the operation button 4 for the fourth time, the control module controls the second Braille display module 107-2 to display the current battery level display mode. A fixed combination of raised dots can be used to indicate the mode, such as one raised dot unit 1 rising for voice mode, another raised dot unit 1 rising for Braille mode, and both raised dot units 1 rising simultaneously for dual-mode mode. Alternatively, a vibration module can be integrated into the power bank to indicate the current battery level display mode through different vibration counts or frequencies. In other embodiments, an FPC flexible circuit board for data communication with the control module can be set independently of the operation button 4. Thus, when the user slides the touch button 4 from left to right on this circuit board, i.e., when the user interacts with the operation button 4 for the fourth time, the control module controls the second Braille display module 107-2 to display the current battery level display mode.

[0101] In other embodiments, to ensure the lifespan of the raised dot unit 1, the second Braille display module 107-2 displays the current battery level display mode and maintains it for a certain period of time, allowing the user sufficient time to perceive the current mode before each raised dot unit automatically resets. For example, raising one raised dot unit 1 indicates that the current mode is Braille. This raised dot unit 1 only rises for 10 seconds. After 10 seconds, if the user does not continue to touch or slide, the raised dot unit 1 automatically resets, meaning the second Braille display module 107-2 no longer displays the current battery level display mode.

[0102] In other embodiments, the second Braille display module 107-2 includes two operating states: a state for displaying the current battery level indicator mode, and a state for use as an extended backup to display the current battery level range together with the first Braille display module 107-1. Accordingly, the operating state of the second Braille display module 107-2 can be switched by the user interacting with the Braille display module 107, for example, by touching / sliding from the center to the right / left on the FPC flexible circuit board. For example, when touching / sliding from the center to the left, it is determined whether the current state is the battery level indicator mode. If not, it switches to the battery level indicator mode; if so, no operation is performed. When touching / sliding from the center to the right, it is determined whether the current state is the extended backup state. If not, it switches to the extended backup state (correspondingly, the control module redistributes the battery level range according to the total number of raised dot units in the first and second Braille display modules; specifically, see the above embodiments, which will not be repeated here); if so, no operation is performed.

[0103] In other embodiments, in addition to triggering the voice broadcast module to broadcast the current battery level and / or triggering the second Braille display module 107-2 to display the current battery level range by interacting with the operation button 4, functions such as battery level query and mode query can also be initiated by interacting with the Braille display module 107.

[0104] For example, in response to a seventh interaction between the user and the Braille display module 107, such as a left-to-right touch on the flexible circuit board on the operation button, the control module controls the voice broadcast module to broadcast the accurate battery level, and / or the Braille display module 107 to display the current battery level range. For example, in response to an eighth interaction between the user and the Braille display module, such as a right-to-left touch on the flexible circuit board of the operation button, the control module controls the voice broadcast module to announce the current battery level display mode. See also Figure 3 In this paper, multiple raised dot units 1 in the Braille display module are arranged in an array. For example, left refers to the leftmost of the array of multiple raised dot units, that is, the area corresponding to the first column of raised dot units; correspondingly, right refers to the rightmost of the array of multiple raised dot units, that is, the area corresponding to the last column of raised dot units; correspondingly, the middle is the area corresponding to the center line of the array.

[0105] Specifically, an FPC flexible circuit board can be installed on the top of the housing of the Braille display module. This circuit board is electrically connected to the control module or the control motherboard of the Braille display module (e.g., it can communicate wirelessly with the control module, or wirelessly / wiredly with the control motherboard built into the Braille display module). The FPC flexible circuit board is equipped with components that can recognize finger movements, such as a tactile sensor. This allows the control module to control the voice broadcast module to announce the accurate battery level when the user touches from left to right, and / or the Braille display module 107 to display the current battery level range. Similarly, when the user touches from right to left, the control module controls the voice broadcast module to announce the current battery level display mode. Furthermore, the FPC flexible circuit board has six holes corresponding to the raised dot units in the Braille display module, facilitating the raising of the raised dots when checking the battery level.

[0106] Specifically, when the user touches the Braille display module from left to right, a battery level query is triggered. If the current mode is voice broadcast, the voice broadcast module immediately announces the accurate battery level value. If the current mode is Braille display, the first Braille display module 107-1 (or Braille display module 107) drives the corresponding number of raised dots to rise, hold for 8 seconds, and then retract. If the current mode is dual-mode, the voice broadcast of the accurate battery level and the Braille display of the battery level range are activated simultaneously, ensuring dual information transmission. In this mode, there is no need to find the operation button 4; the battery level query is triggered directly through the Braille display module 107, which conforms to the habit of visually impaired users to operate immediately after tactile positioning.

[0107] When a user touches the Braille display module 107 from right to left, a battery display mode query is triggered. Upon triggering, the voice broadcast module announces the current mode name, such as "Currently in voice broadcast mode" or "Currently in dual-mode mode." Users can use this method to confirm the current status before forgetting the current mode setting or needing to switch modes depending on the scenario. Alternatively, in some embodiments, pressure sensors can be installed on all the raised dot units, and the control module can identify whether the user's finger is sliding from the left raised dot unit to the right, or from the right to the left, or from the middle to either the left or right raised dot unit in the array, based on the pressure data from each sensor, and respond accordingly.

[0108] In this embodiment, in addition to the units described in the above embodiments, the control module further includes: a first control unit configured to, when the current battery display mode is switched to the Braille display mode, control the first raised dot unit in the second Braille display module to rise, indicating that the current mode is the Braille display mode; or, when the current battery display mode is switched to the voice broadcast mode, control the second raised dot unit in the second Braille display module to rise, indicating that the current mode is the voice broadcast mode; or, when the current battery display mode is switched to dual mode, control the first raised dot and the second raised dot in the second Braille display module to rise simultaneously, indicating that the current mode is the dual mode.

[0109] In other embodiments, the aforementioned battery level indicator mode switching unit is further configured to: In the Braille display mode, in response to a seventh interaction between the user and the Braille display module, the first Braille display module is controlled to display the current battery level range; or, in response to an eighth interaction between the user and the Braille display module, the second Braille display module is controlled to display the current battery level display mode; or... In the voice broadcast mode, in response to the seventh interaction between the user and the Braille display module, the voice broadcast module is controlled to broadcast the current battery level; or, in response to the eighth interaction between the user and the Braille display module, the voice broadcast module is controlled to broadcast the current battery level display mode.

[0110] For example, in the Braille display mode, based on the electrical signal sent from the FPC flexible circuit board, the above-mentioned power prompt mode switching unit controls the voice broadcast module to broadcast the current power level, and / or the first Braille display module to display the power level range where the current power level is located; wherein, the electrical signal is generated when the user performs a seventh interactive operation with the FPC flexible circuit board on top of the Braille display module.

[0111] For example, in the Braille display mode, the voice broadcast module is controlled to broadcast the current battery level display mode based on the electrical signal sent by the FPC flexible circuit board; wherein, the electrical signal is generated during the eighth interactive operation between the user and the FPC flexible circuit board on top of the Braille display module.

[0112] Example 3: Based on the above-described power bank, the present invention also provides a method for indicating the power level of a power bank, see [link to example]. Figure 7 The specific steps include: S101, in response to the first interaction between the user and the operation button 4, the control module controls the operation button 4 to enter the power display mode switching state from the initial state.

[0113] In some embodiments, the first interaction method can be a long press of the operation button 4 for three or four seconds. Of course, other interaction methods can also be used, as long as they can switch the working state of the operation button 4.

[0114] As described in the above embodiments, the operation button 4 may integrate multiple functions, such as power on / off, switching the power display mode, and triggering the corresponding module to display the power. Therefore, the initial state here refers to the working state of the operation button 4 before the first interaction with it, such as the power-on state in the power-on / off state. In this state, once the operation button 4 is pressed and held, the operation button 4 will switch to the power display mode switching state. Therefore, the user can switch the power display mode by interacting with the operation button 4.

[0115] Furthermore, the switching state of operation button 4 can be maintained for a specified period of time, such as 10 seconds. If no further switching operation is performed within 10 seconds, the system will automatically exit the switching state and automatically provide a voice prompt saying "Mode switching state has been exited" to avoid energy waste.

[0116] S102, in response to the second interaction between the user and the operation button 4, the control module controls the switching of the power display mode and triggers the corresponding module to provide a power level prompt.

[0117] In some embodiments, the second interaction method can be a toggle button. Of course, other interaction methods can also be used, as long as they can switch the battery display mode.

[0118] In some embodiments, the power display modes include: voice broadcast mode, Braille display mode, and dual-mode mode.

[0119] Preferably, when switching to Braille display mode (e.g., by tossing the button to the left), the control module controls the first Braille display module 107-1 to display the current battery level range.

[0120] Preferably, when switching to the voice broadcast mode (e.g., by tossing the button to the right), the control module controls the voice broadcast module to broadcast the current battery level. Preferably, when switching to dual mode (e.g., by pressing the button to the left again), the control module controls the first Braille display module to display the current battery level range while simultaneously controlling the voice broadcast module to announce the current battery level.

[0121] Of course, in other embodiments, in any mode, further interaction with the operation buttons is required to trigger the corresponding module to display the battery level indicator; see [link to relevant documentation]. Figure 8 .

[0122] For example, when switching to Braille display mode (e.g., by sliding the button to the left), in response to the third interaction between the user and operation button 4, the control module controls the first Braille display module 107-1 to display the current battery level range.

[0123] For example, when switching to the voice broadcast mode (e.g., by sliding the button to the right), in response to the third interaction between the user and the operation button 4, the control module controls the voice broadcast module to broadcast the current battery level. For example, when switching to dual mode (e.g., pressing the button to the left again), in response to the third interaction between the user and operation button 4, the control module controls the first Braille display module to display the current battery level range while simultaneously controlling the voice broadcast module to announce the current battery level.

[0124] As described in the above embodiments, the operation button 4 can integrate both pressing and tossing functions (e.g., prior art CN212380338U). When used for a second interaction with the operation button 4, such as tossing the button, the control module controls the switching of the power display mode in response to the second interaction between the user and the operation button 4: the mode is switched cyclically from voice broadcast mode to Braille display mode to dual-mode mode to voice broadcast mode. Each tossing switch only switches one mode, avoiding continuous switching that could confuse the user.

[0125] Preferably, after the switch is completed, if the user stops dialing, the system will automatically exit the switching state after 10 seconds, or the user can press button 4 again to exit directly and trigger the current mode's battery level indicator.

[0126] In other embodiments, each raised dot unit 1 in the first Braille display module 107-1 is provided with a pressure sensor. Correspondingly, the method further includes the step of: in the Braille display mode, in response to a fifth interaction between the user and the plurality of raised dot units 1, the control module controls the voice broadcast module to broadcast the current battery level. Specifically, the sensing component 114 of the pressure sensor is disposed on the top of the raised dot component 11 of the raised dot unit 1, with metal conductors (such as copper foil) at both ends serving as electrodes 115, and a non-metallic insulator 116 (such as PVC) spaced between the two electrodes 115. In a specific implementation, two metal conductors adapted to the shape of the raised dot component 11 and able to adhere to it, and two insulators disposed between the two metal conductors, enclose a cover that can cover the raised dot component 11 (see...). Figure 4B and Figure 4CThe pressure sensor's sensing element is electrically connected to two metal conductors via welding or other methods, making the two metal conductors the positive and negative electrodes of the pressure sensor. The cover is then further fixed to the protrusion component 11 via welding or bonding. Alternatively, the metal conductors can also be electrically connected to the main control module via wires.

[0127] Further, see Figure 4D The Braille display module 107 has a metal conductor 117, such as copper foil, installed on the edge of the hole on the top of the housing for the protruding bump unit. When the bump unit protrudes, it contacts the positive and negative terminals of the pressure sensor. Specifically, the metal conductor on the housing extends inside the housing to the bottom PCB board and is electrically connected to the control module. Of course, the metal conductor can also be electrically connected to the main control module via wires.

[0128] Preferably, the fifth interaction method involves lightly tapping either of the raised bump units 1 twice with a finger. Specifically, to prevent accidental activation of the pressure sensor and triggering of voice announcements, the control module only collects the pressure data from the sensor on the raised bump unit when it is in Braille display mode and the corresponding bump unit is detected to be raised. Based on this pressure data, the control module triggers the voice announcement module (for example, if both presses exceed a preset threshold, the voice announcement module announces the current battery level). That is, when any bump unit is raised, the control module collects the pressure data of the raised bump unit and compares it with a threshold. If the pressure exceeds the preset threshold, the voice announcement module is triggered to announce the battery level. If the pressure sensor of a non-raised bump unit is accidentally touched, the control module will not collect its pressure data, and therefore will not trigger a voice announcement.

[0129] In some embodiments, since each protrusion unit 1 is provided with a pressure sensor, the fifth interaction method with at least one raised / protruding protrusion unit specifically includes: pressing any raised protrusion unit twice; or, when only one protrusion unit 1 is raised, the method of pressing twice is adopted, while when two or more protrusion units are raised, two of the protrusion units need to be pressed at the same time, and the number of presses is one for each. However, the pressure value generated by the press needs to reach a preset threshold before the voice broadcast module is triggered. That is, the control module receives the pressure data sent from the pressure sensors of the two protrusion units, and the pressure data meets the standard before the voice broadcast module is triggered to perform voice broadcast.

[0130] In other embodiments, since the reference bump unit will protrude for each power range, the voice broadcast module will only be triggered to broadcast voice information when the user interacts with the reference bump unit in the fifth interaction mode, as described above, by pressing twice, and the pressure value of the two presses is greater than a preset threshold.

[0131] Furthermore, since the raised dot unit is locked by the locking plate, there is no direct feedback mechanism when the user presses it. The success of the trigger can only be determined by whether a voice broadcast is heard. Therefore, to assist the user in making the judgment and to prevent accidental touches, the duration of the two presses is different. For example, the user presses for a first duration and then presses for a second duration, with the second duration being shorter than the first duration. Accordingly, the battery level indicator auxiliary unit specifically determines whether the duration of the first press reaches the first duration threshold and whether the duration of the second press reaches the second duration threshold, where the second duration threshold is less than the first duration threshold. If the duration of the first press is greater than or equal to the first duration threshold, and the duration of the second press is greater than or equal to the second duration threshold, and the pressure value of both presses is greater than a preset pressure threshold, the voice broadcast module is triggered to broadcast the current battery level value. Of course, in other embodiments, a short and long press method can also be used to trigger the voice broadcast module. That is, the second duration is greater than the first duration, and the pressure values ​​of the two presses are both greater than the preset pressure threshold before the voice broadcast module is triggered.

[0132] Furthermore, in some other embodiments, it includes the steps described above, except that the battery level indicator method further includes the step of: When switching to the Braille display mode, the control module also controls the first raised dot unit in the second Braille display module to rise, in order to indicate that the current Braille display mode is the Braille display mode; Alternatively, when switching to the voice broadcast mode, the control module also controls the second raised dot unit in the second Braille display module to rise, in order to indicate that the current mode is the voice broadcast mode; Alternatively, when switching to dual mode, the control module also controls the first and second convex dots in the second Braille display module to rise simultaneously to indicate that the current mode is dual mode.

[0133] In some embodiments, after each switch of the power display mode, the second Braille display module synchronously displays a mode identifier, such as one raised dot unit rising for voice mode, another raised dot unit rising for Braille mode, and both raised dot units rising simultaneously for dual-mode mode. Alternatively, after each switch of the power display mode, the voice broadcast module can immediately announce the current mode, such as "Switched to Braille display mode," or the second Braille display module can simultaneously display the mode identifier while the current mode is announced via voice.

[0134] Since users may not have used the power bank for a long time or may have poor memory and may not remember the current power display mode, and since the second Braille display module only displays the specific mode indicator for a short period of time and does not display it continuously, in order to allow users to quickly know the current power display mode type when they use it again, users can interact with the operation button 4 to trigger the second Braille display module to display it.

[0135] Specifically, as mentioned earlier, by integrating touch functionality into the operation button 4, when the user slides the operation button 4 from left to right—that is, when the user interacts with the operation button 4 for the fourth time—the control module controls the second Braille display module 107-2 to display the current battery level display mode. This is achieved through a fixed combination of raised dot patterns, such as one raised dot unit 1 rising for voice mode, another raised dot unit 1 rising for Braille mode, and both raised dot units 1 rising simultaneously for dual-mode mode.

[0136] Of course, a vibration module can also be integrated into the power bank to indicate the current battery level display mode through different vibration counts and / or frequencies. For example, a single vibration at a first frequency f1 indicates voice mode, two vibrations at a second frequency f2 indicate Braille mode, and three vibrations at a third frequency f3 indicate dual-mode mode, where f1 > f2 > f3. By combining the "vibration count" and "vibration frequency," the probability of misjudgment is reduced. Even with slight environmental interference or user inattention, the dual cues ensure the reliability of information transmission. For example, even if it's unclear whether it's two or three vibrations, but the user perceives a "low frequency" (f3), they can still determine it's "dual-mode mode."

[0137] In other embodiments, instead of triggering the voice broadcast module to announce the current battery level and / or triggering the second Braille display module to display the current battery level range by interacting with the operation button 4, functions such as battery level query and pattern query are initiated by interacting with the Braille display module 107. Specifically, the battery level indication method further includes the following steps: In the Braille display mode, in response to the seventh interaction between the user and the Braille display module, the control module controls the voice broadcast module to broadcast the current battery level, and / or the Braille display module to display the current battery level range; Alternatively, in response to an eighth interaction between the user and the Braille display module, the control module controls the voice broadcast module to broadcast the current battery level display mode.

[0138] Preferably, the seventh interaction method is: six raised dot units in the touch Braille display module from left to right.

[0139] Preferably, the eighth interaction method is: six raised dot units in the touch Braille display module from right to left.

[0140] For example, when a user touches the Braille display module from left to right, a battery level query is triggered. If the current mode is voice broadcast, the voice broadcast module immediately announces the accurate battery level value. If the current mode is Braille display, the first Braille display module 107-1 drives the corresponding number of raised dots to rise, hold for 8 seconds, and then retract. If the current mode is dual-mode, the voice broadcast of the accurate battery level and the Braille display of the battery level range are activated simultaneously, ensuring dual information transmission. In this mode, there is no need to find the operation button 4; the battery level query is triggered directly through the Braille display module 107, which conforms to the habit of visually impaired users to operate immediately after tactile positioning.

[0141] When the user touches the Braille display module 107 from right to left, a battery display mode query is triggered. Upon triggering, the voice broadcast module announces the current mode name, such as "Currently in voice broadcast mode" or "Currently in dual-mode mode." Users can use this method to confirm the current status before forgetting their current mode setting or needing to switch modes depending on the scenario.

[0142] Of course, in other embodiments, interaction with operation button 4 can trigger the voice broadcast module to announce the current battery level and / or trigger the second Braille display module to display the current battery level range. Furthermore, interaction with the Braille display module 107 can initiate functions such as battery level query and mode query. The principles of these two interaction methods are the same as those in the above embodiments and will not be repeated here.

[0143] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, 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, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0144] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a computer terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0145] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method for indicating the battery level of a power bank, characterized in that, The power bank includes: a power bank body, a control module disposed within the power bank body, a first Braille display module electrically connected to the control module disposed on the power bank body, and a voice broadcast module for broadcasting prompt information and accurate power level; the first Braille display module includes several independently controllable protrusion and retraction dot units, used to represent different power level ranges through the protrusion combination of the several dot units, wherein a pressure sensor is disposed on a reference dot unit; it also includes operation buttons disposed on the second side of the power bank body and electrically connected to the control module, and correspondingly, the power level indication method includes the following steps: In response to the first interaction between the user and the operation button, the operation button is controlled to switch from the initial state to the power display mode switching state. In the power display mode switching state, the power display mode is switched in response to the second interaction between the user and the operation button; the power display modes include: voice broadcast mode, Braille display mode and dual-mode mode; Furthermore, when switching to the Braille display mode, in response to the third interaction between the user and the operation buttons, the first Braille display module is controlled to display the current battery level range; and in response to the fifth interaction between the user and the raised reference bump unit, the voice broadcast module is controlled to broadcast the current battery level; the fifth interaction includes: the user presses the reference bump unit equipped with a pressure sensor twice, so that the control module controls the voice broadcast module to broadcast the current battery level based on the pressure data detected by the pressure sensor.

2. The power level indicator method for a power bank according to claim 1, characterized in that, The specific steps of the control module controlling the voice broadcast module to broadcast the current battery level based on the pressure data detected by the pressure sensor include: Determine whether the duration of the first press reaches a first duration threshold and whether the duration of the second press reaches a second duration threshold, wherein the second duration threshold is less than the first duration threshold; If the duration of the first press is greater than or equal to the first duration threshold, and the duration of the second press is greater than or equal to the second duration threshold, and the pressure values ​​of the two presses are greater than a preset pressure threshold, the voice broadcast module is triggered to broadcast the current battery level.

3. The power bank power indicator method according to claim 1, characterized in that, It also includes the following steps: When switching to the voice broadcast mode, in response to the third interaction between the user and the operation buttons, the control module controls the voice broadcast module to broadcast the current battery level. Alternatively, when switching to dual mode, in response to a third interaction between the user and the operation buttons, the control module controls the first Braille display module to display the current battery level range while simultaneously controlling the voice broadcast module to announce the current battery level.

4. A method for indicating the battery level of a power bank according to any one of claims 1 to 3, characterized in that, Also includes: The second Braille display module is electrically connected to the control module. Correspondingly, the battery level indicator method further includes the following steps: When switching to the Braille display mode, the control module also controls a raised dot unit in the second Braille display module to rise, indicating that the current mode is the Braille display mode; Alternatively, when switching to the voice broadcast mode, the control module also controls another raised dot unit in the second Braille display module to rise, in order to indicate that the current mode is the voice broadcast mode; Alternatively, when switching to dual mode, the control module also controls the two raised dot units in the second Braille display module to rise simultaneously to indicate that the current mode is dual mode.

5. A method for indicating the battery level of a power bank according to claim 4, characterized in that, It also includes the following steps: In the Braille display mode, in response to the seventh interaction between the user and the first Braille display module, the control module controls the voice broadcast module to broadcast the current battery level, and / or the first Braille display module to display the current battery level range; Alternatively, in response to an eighth interaction between the user and the first Braille display module, the control module controls the voice broadcast module to broadcast the current battery level display mode, or / and the second Braille display module drives the corresponding number of raised dot units to rise to display the current battery level display mode.

6. A power bank for visually impaired users, characterized in that: The device includes a power bank body, a first Braille display module on a first side of the power bank body; the first Braille display module includes several independently controllable protrusion and retraction dot units, used to represent different power ranges through the protrusion combination of the several dot units, wherein a pressure sensor is provided on a reference dot unit; it also includes a voice broadcast module for prompting information and accurately broadcasting power level; and a control module electrically connected to the power bank body, the first Braille display module, and the voice broadcast module; it also includes an operation button located on a second side of the power bank body and electrically connected to the control module, which allows switching of power display modes by interacting with the operation button; wherein the control module includes: The working state switching unit is configured to respond to the first interaction between the user and the operation button, and control the operation button to enter the power display mode switching state from the initial state. A battery level indicator mode switching unit is configured to, in response to a second interaction between the user and the operation button, control the switching of the battery level display mode during the battery level display mode switching state. The battery level display modes include: voice broadcast mode, Braille display mode, and dual-mode mode. When switching to the Braille display mode, in response to a third interaction between the user and the operation button, the first Braille display module is controlled to display the current battery level range. Alternatively, when switching to the voice broadcast mode, in response to a third interaction between the user and the operation button, the voice broadcast module is controlled to voice-announce the current battery level. Alternatively, when switching to dual-mode mode, in response to a third interaction between the user and the operation button, the first Braille display module is controlled to display the current battery level range while the voice broadcast module voice-announces the current battery level. The battery level indicator auxiliary unit is configured to, when the current mode is Braille display, respond to a fifth interaction between the user and the raised reference bump unit, control the voice broadcast module to announce the current battery level; specifically, the fifth interaction includes: the user presses the reference bump unit equipped with a pressure sensor twice, causing the control module to control the voice broadcast module to announce the current battery level based on the pressure data detected by the pressure sensor.

7. A power bank for visually impaired users according to claim 6, characterized in that... The power level indicator auxiliary unit is also configured to, when the current mode is voice broadcast, respond to the sixth interaction between the user and the operation button, stop the voice broadcast module from broadcasting and / or, the power bank also includes a second Braille display module. Accordingly, the working state switching unit is also configured to, when the second Braille display module is in the mode display state, respond to the eighth interaction between the user and the multiple raised dot units, control the second Braille display module to display the current power level display mode.

8. A power bank for visually impaired users according to claim 6, characterized in that: The proportion of raised dots in the first Braille display module is proportional to the power range.

9. A power bank for visually impaired users according to claim 8, characterized in that: Four bump units are used to display the battery level range. When all four bump units are raised, the battery level is between 75% and 100%. When three bump units are raised, the battery level is between 50% and 75%. When two bump units are raised, the battery level is between 25% and 50%. When one bump unit is raised, the battery level is below 25%. When no bump unit is raised, the battery level is 0%.

10. A power bank for visually impaired users according to any one of claims 6 to 9, characterized in that: The fifth interaction method includes: the user presses the reference protrusion unit equipped with a pressure sensor twice, and accordingly, the battery level indicator auxiliary unit specifically determines whether the duration of the first press reaches a first duration threshold and whether the duration of the second press reaches a second duration threshold, wherein the second duration threshold is less than the first duration threshold; if the duration of the first press is greater than or equal to the first duration threshold, and the duration of the second press is greater than or equal to the second duration threshold, and the pressure value of the two presses is greater than a preset pressure threshold, the voice broadcast module is triggered to broadcast the current battery level value.

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