Low-power-consumption heating device and method applied to electronic paper

Abstract

The invention discloses a low-power-consumption heating device and method applied to electronic paper. The device comprises a plurality of heating film partitions, a plurality of temperature sensors, a main controller and a power source. The main controller takes the heating film subarea of which the real-time temperature and the real-time environment temperature are lower than a preset starting temperature as a target heating film subarea; according to the real-time temperature and a preset target heating duration, heating power required by the target heating film partition is calculated, and the power supply is controlled to supply power to the target heating film partition according to the heating power; and when it is detected that the real-time temperature of the target heating film subarea reaches a preset heating stopping temperature, the power source is controlled to cut off electric energy supply to the target heating film subarea. According to the electronic paper heating method and device, the heating film can be locally heated in a targeted mode, it is ensured that the electronic paper can work normally in the low-temperature environment, and meanwhile power consumption in the heating process is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of electronic paper display, and in particular to a low-power consumption heating device and method applied to electronic paper. Background Art

[0002] In the prior art, conventional electronic paper heating devices generally adopt a global heating mode, that is, heating the entire electronic paper display surface. Although the above method is easy to operate, it requires applying heat to the entire electronic paper display area, which inevitably leads to the problem of excessive power consumption, making it difficult to give full play to the low power consumption advantage of the electronic paper itself. Especially in cold environments, the power consumption problem is more significant.

[0003] In view of this, how to effectively reduce unnecessary power consumption during the heating process while ensuring that the electronic paper can work normally in a low-temperature environment is an urgent problem to be solved in the current electronic paper display field. Summary of the invention

[0004] The present invention provides a low-power consumption heating device and method for electronic paper. The low-power consumption heating device can locally heat a heating film in a targeted manner, thereby ensuring that the electronic paper can work normally in a low-temperature environment and effectively reducing the power consumption during the heating process.

[0005] An embodiment of the present invention provides a low-power heating device for electronic paper, comprising: a plurality of heating film partitions, a plurality of temperature sensors, a main controller and a power supply; there is no overlapping between the heating film partitions, and each of the heating film partitions is configured with a unique temperature sensor; the plurality of heating film partitions are obtained by dividing a complete heating film according to a preset division rule;

[0006] The temperature sensor is used to obtain the real-time ambient temperature and the real-time temperature of the configured heating film partition; and send the real-time temperature and the real-time ambient temperature to the main controller;

[0007] The main controller is used to, when it is detected that there is a heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the preset starting temperature, take the heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the starting temperature as the target heating film partition; calculate the heating power required for the target heating film partition based on the real-time temperature and the preset target heating time, and control the power supply to supply power to the target heating film partition according to the heating power; and control the power supply to cut off the power supply to the target heating film partition when it is detected that the real-time temperature of the target heating film partition reaches the preset stop heating temperature.

[0008] Furthermore, the heating power required for the target heating film partition is calculated based on the real-time temperature and the preset target heating time, including:

[0009] Calculating a difference between the startup temperature and the real-time temperature to obtain a first difference;

[0010] Calculating the required heat according to a preset specific heat capacity, the mass of the heating film partition, the first difference and a preset heat calculation formula;

[0011] Calculate the actual heat supply required based on the required heat and a preset heat loss coefficient;

[0012] The heating power required for the target heating film partition is calculated based on the actual supplied heat, the target heating time and a preset power calculation formula.

[0013] Furthermore, the low-power heating device applied to electronic paper also includes: an electronic paper film; the upper surface of the heating film is adhered and fixed to the lower surface of the electronic paper film, the main controller is fixed to the lower surface of the heating film, and the power supply is fixed to the lower surface of the heating film.

[0014] Furthermore, the electronic paper film has a built-in driving circuit; the electronic paper film is connected to the main controller through the driving circuit;

[0015] The main controller is further used to obtain a display image to be displayed on the electronic paper film; and based on a preset transmission rule, generate a drive signal sequence adapted to the display image; and send the drive signal sequence to the electronic paper film through the drive circuit;

[0016] The electronic paper film is used to receive the driving signal sequence of the main controller; based on the driving signal sequence, the built-in charged particles are controlled to move in a directional manner to form a pixel arrangement corresponding to the display image.

[0017] Furthermore, the low-power heating device applied to electronic paper also includes: a protective shell; the protective shell includes a protective cover, a connecting pad and a back protective cover; one side of the connecting pad is embedded in the side wall of the back protective cover, and the other side of the connecting pad is embedded in the protective cover.

[0018] Furthermore, the protective shell further comprises: a power connection slot; the power connection slot is arranged on the side wall of the back protective cover;

[0019] The power connection slot is used to connect an external power source so that the external power source can supplement power to the power source.

[0020] An embodiment of the present invention further provides a low-power consumption heating method applied to electronic paper, which is applicable to the low-power consumption heating device applied to electronic paper, and includes:

[0021] When it is identified that there is a temperature sensor whose collected real-time temperature and real-time ambient temperature are both lower than the preset start-up temperature, the temperature sensor whose real-time temperature and real-time ambient temperature are both lower than the start-up temperature is used as the target temperature sensor, and the heating film partition uniquely corresponding to the target temperature sensor is used as the target heating film partition; wherein each of the heating film partitions is correspondingly configured with a unique temperature sensor, and there is no overlapping part between the heating film partitions; the plurality of heating film partitions are obtained by dividing a complete heating film according to a preset division rule;

[0022] Calculate the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time;

[0023] The power supply is controlled to supply power to the target heating film partition according to the heating power until the real-time temperature of the target heating film partition reaches a preset stop heating temperature, and the power supply is controlled to cut off the power supply to the target heating film partition.

[0024] Furthermore, the heating power required for the target heating film partition is calculated based on the real-time temperature and the preset target heating time, including:

[0025] Calculating a difference between the startup temperature and the real-time temperature to obtain a first difference;

[0026] Calculating the required heat according to a preset specific heat capacity, the mass of the heating film partition, the first difference and a preset heat calculation formula;

[0027] Calculate the actual heat supply required based on the required heat and a preset heat loss coefficient;

[0028] The heating power required for the target heating film partition is calculated based on the actual supplied heat, the target heating time and a preset power calculation formula.

[0029] Furthermore, the upper surface of each heating film is adhered and fixed to the lower surface of the pre-set electronic paper film, a main controller is fixed to the lower surface of the heating film, and a power supply is fixed to the lower surface of the heating film.

[0030] Furthermore, the low-power heating method applied to electronic paper further includes:

[0031] Acquiring a display image to be displayed on the electronic paper film;

[0032] Based on preset transmission rules, a driving signal sequence adapted to the displayed image is generated, and based on a driving circuit built into the electronic paper film, the driving signal sequence is sent to the electronic paper film, so that after receiving the driving signal sequence, the electronic paper film controls the directional movement of the charged particles built into the electronic paper film based on the driving signal sequence.

[0033] The following beneficial effects are achieved by implementing the present invention:

[0034] The present invention provides a low-power consumption heating device and method for electronic paper, the device comprising a plurality of heating film partitions, a plurality of temperature sensors, a main controller and a power supply; the temperature sensor is used to obtain the real-time ambient temperature and the real-time temperature of the configured heating film partitions; and the real-time temperature and the real-time ambient temperature are sent to the main controller; when the main controller detects that there is a heating film partition whose real-time temperature and the real-time ambient temperature are both lower than a preset start-up temperature, the main controller takes the heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the start-up temperature as a target heating film partition; according to the real-time temperature and the preset target heating time, the heating power required for the target heating film partition is calculated, and the power supply is controlled to supply power to the target heating film partition according to the heating power; when it is detected that the real-time temperature of the target heating film partition reaches the preset stop heating temperature, the power supply is controlled to cut off the power supply to the target heating film partition;

[0035] Therefore, by accurately locating the heating film partition that needs to be heated, the heating film can be locally heated in a targeted manner, effectively avoiding unnecessary energy waste. By calculating a reasonable heating power, it is ensured that the electronic paper can work normally in a low-temperature environment, while effectively reducing unnecessary power consumption during the heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 This is a first structural schematic diagram of a low-power heating device applied to electronic paper provided by a certain embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of the structure of the heating film partition provided in a certain embodiment of the present application;

[0039] Figure 3is a second structural schematic diagram of a low-power heating device applied to electronic paper provided by a certain embodiment of the present application;

[0040] Figure 4 is a third structural schematic diagram of a low-power heating device applied to electronic paper provided by a certain embodiment of the present application;

[0041] Figure 5 is a first structural schematic diagram of a protective shell provided by a certain embodiment of the present application;

[0042] Figure 6 is a second structural schematic diagram of a protective shell provided by a certain embodiment of the present application;

[0043] Figure 7 It is a flowchart of a low-power heating method applied to electronic paper provided in a certain embodiment of the present application.

[0044] Description of reference numerals:

[0045] Heating film 1 Heating film partition 1-1 Temperature sensor 2 Main controller 3 Power supply 4 Electronic paper film 5 Driving circuit 5-1 Protective shell 6 Protective cover 6-1 Connection pad 6-2 Back protective cover 6-3 Power connection slot 6-4 DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0048] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0049] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0050] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0051] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0052] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] Embodiment 1

[0054] See also Figure 1 , is a schematic structural diagram of a low-power heating device for electronic paper provided by an embodiment of the present invention, comprising: a plurality of heating film partitions 1-1, a plurality of temperature sensors 2, a main controller 3 and a power supply 4; there is no overlapping part between the heating film partitions 1-1, and each of the heating film partitions 1-1 is configured with a unique temperature sensor 2; the plurality of heating film partitions 1-1 are obtained by dividing a complete heating film 1 according to a preset division rule;

[0055] The temperature sensor 2 is used to obtain the real-time ambient temperature and the real-time temperature of the configured heating film partition 1-1; and send the real-time temperature and the real-time ambient temperature to the main controller 3;

[0056] The main controller 3 is used for, when detecting that there is a heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the preset starting temperature, taking the heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the starting temperature as the target heating film partition; calculating the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time, and controlling the power supply to supply power to the target heating film partition according to the heating power; and controlling the power supply to cut off the power supply to the target heating film partition when detecting that the real-time temperature of the target heating film partition reaches the preset stop heating temperature;

[0057] Indicatively, see Figure 2 , are several heating film partitions obtained by division;

[0058] It should be noted that the division of the heating film partitions 1-1 follows the preset division rules, and the division rules can be dynamically adjusted according to the scale of the heating film 1; specifically, the number of heating film partitions 1-1 can be appropriately increased according to factors such as the actual size of the heating film 1.

[0059] Schematically, each of the heating film partitions 1 - 1 is equipped with a unique temperature sensor 2 , that is, the accuracy of temperature monitoring is effectively improved through a one-to-one configuration;

[0060] Specifically, the temperature sensor 2 equipped for each heating film partition 1-1 can only detect the real-time temperature of the heating film partition 1-1 matched therewith and the real-time ambient temperature of the low-power heating device applied to the electronic paper in the current working environment; the temperature sensor 2 senses the changes of the temperature of the corresponding heating film partition and the surrounding environment through the internal thermistor, and converts these changes into electrical signals and outputs them to the main controller 3;

[0061] Specifically, it is assumed that there is currently a heating film partition 1-1 with code name A, and the temperature sensor 2 with code name a matches the heating film partition 1-1 with code name A. When the low-power heating device applied to electronic paper is working, the temperature sensor 2 with code name a can monitor the temperature of the heating film partition 1-1 with code name A in real time, such as detecting that the real-time temperature of the heating film partition 1-1 with code name A is 2°C, and at the same time detecting that the current real-time ambient temperature is -4°C.

[0062] Preferably, the temperature sensor 2 may be a multi-channel digital temperature sensor such as MAX31855, TMP117, or LM75AD that supports multi-point temperature measurement.

[0063] Schematically, the main controller 3 continuously receives real-time temperature data transmitted from each temperature sensor 2, and these real-time temperature data include the real-time temperature and the real-time ambient temperature of each heating film partition 1-1, and when it is detected that there is a heating film partition 1-1 whose real-time temperature and the real-time ambient temperature are both lower than the preset start-up temperature, the main controller 3 will immediately mark the heating film partitions 1-1 whose real-time temperature and the real-time ambient temperature are both lower than the preset start-up temperature as target heating film partitions;

[0064] That is, by accurately locating the heating film partition 1-1 that needs to be heated, effective help is provided for subsequent targeted heating control. By locally heating the heating film 1, unnecessary energy waste is effectively avoided, and the overall display effect of the electronic paper is ensured not to be affected by low temperature.

[0065] It should be noted that the difference between the heating film partition 1-1 and the target heating film partition is only to distinguish the heating film partition 1-1 that does not need to be heated from the heating film partition 1-1 that needs to be heated after temperature screening, and the target heating film partition and the heating film partition 1-1 are essentially unchanged in structure;

[0066] It should be noted that the preset start-up temperature is set in advance according to the optimal temperature range for the electronic paper to display normally and stably.

[0067] Specifically, in order to better illustrate this embodiment, it is assumed that the starting temperature is 25° C. (only as an example, and does not mean that only this temperature value can be set in actual application);

[0068] Assuming that the current real-time temperature of the heating film partition 1-1 code-named A is detected to be 10°C, and the current real-time ambient temperature is detected to be -2°C, the main controller 3 collects the data of "the real-time temperature is 10°C and the real-time ambient temperature is -2°C" from the temperature sensor 2 code-named a, and determines that the real-time temperature and the real-time ambient temperature are both lower than the starting temperature of 25°C, and then determines the heating film partition 1-1 code-named A as the target heating film partition.

[0069] Schematically, after determining the target heating film partition that needs to be heated, the heating power required by the target heating film partition is calculated according to the real-time temperature of each target heating film partition and the preset target heating time, and the power supply 4 is controlled to supply power to the target heating film partition according to the heating power;

[0070] In a preferred embodiment, the heating power required for the target heating film partition is calculated based on the real-time temperature and the preset target heating time, including:

[0071] Calculating a difference between the startup temperature and the real-time temperature to obtain a first difference;

[0072] Calculating the required heat according to a preset specific heat capacity, the mass of the heating film partition, the first difference and a preset heat calculation formula;

[0073] Calculate the actual heat supply required based on the required heat and a preset heat loss coefficient;

[0074] The heating power required for the target heating film partition is calculated according to the actual supplied heat, the target heating time and a preset power calculation formula;

[0075] Specifically, in order to better illustrate this embodiment, the calculation process of the heating power required by the heating film partition 1-1 coded as A is provided below:

[0076] Assume that the mass of the heating film partition 1-1 coded as A is m=0.05 kg, the preset target heating time is t=3 s, the preset heat loss coefficient is k, and the preset specific heat capacity is c (unit: J / (kg·°C));

[0077] First, the difference between the startup temperature and the real-time temperature is calculated to obtain a first difference, that is, the first difference is calculated as: ΔT=25-10=15 (in degrees Celsius);

[0078] The required heat Q is calculated according to the preset specific heat capacity, the mass of the heating film partition 1 - 1 , the first difference and the preset heat calculation formula Q=cmΔT,

[0079] That is: Q = c × 0.05 × 15 = 0.75c (unit is J);

[0080] Then, according to the required heat and the preset heat loss coefficient, the required actual supply heat Q is calculated. 实 , that is, Q 实 =Q×k=0.75ck (unit: J);

[0081] Then according to the actual supply heat Q 实 The target heating time t and the preset power calculation formula The heating power P required by the heating film partition 1-1 coded as A is calculated,

[0082] Right now: (Unit: W);

[0083] It should be noted that the target heating time can be dynamically set according to the actual application scenario; for example, in a scenario with strong light and low temperature outdoors, the display response speed of the electronic paper will be greatly affected by the low temperature. At this time, the target heating time can be appropriately shortened so that the electronic paper can reach a suitable working temperature faster to ensure the user's reading experience; the heat loss coefficient is obtained from multiple groups of heating tests. After multiple tests under different conditions, the proportional relationship between the heat loss amount and the total heat input is statistically analyzed, so as to determine a reasonable heat loss coefficient to ensure more accurate calculation of the actual heat supply;

[0084] Therefore, the heating power required for the heating film partition 1-1 code-named A is 0.25ck. By calculating the required heating power, the main controller 3 can accurately control the power supply 4 to supply power to the heating film partition 1-1 code-named A, ensuring that the electronic paper is quickly heated to a suitable working temperature in a low temperature environment, while effectively avoiding excessive energy consumption; through such precise temperature detection and control, the low-power heating device applied to the electronic paper can intelligently adjust the heating power according to different temperature conditions to ensure that the electronic paper is always in the best working temperature state, which not only guarantees the display effect, but also effectively reduces energy consumption.

[0085] See also Figure 3 , is a second structural schematic diagram of the low-power heating device applied to electronic paper. In a preferred embodiment, the low-power heating device applied to electronic paper further includes: an electronic paper film 5; the upper surface of the heating film 1 is bonded and fixed to the lower surface of the electronic paper film 5, the main controller 3 is fixed to the lower surface of the heating film 1, and the power supply 4 is fixed to the lower surface of the heating film 1.

[0086] See also Figure 4 In a preferred embodiment, the electronic paper film 5 has a built-in driving circuit 5-1; the electronic paper film 5 is connected to the main controller 3 through the driving circuit 5-1;

[0087] The main controller 3 is further used to obtain a display image to be displayed on the electronic paper film 5; and based on a preset transmission rule, generate a driving signal sequence adapted to the display image; and send the driving signal sequence to the electronic paper film 5 through the driving circuit 5-1;

[0088] The electronic paper film 5 is used to receive the driving signal sequence of the main controller 3; based on the driving signal sequence, the built-in charged particles are controlled to move in a directional manner to form a pixel arrangement corresponding to the display image;

[0089] Specifically, the main controller 3 can obtain the display image that needs to be displayed on the electronic paper film 5 by reading the image data in the external memory;

[0090] Schematically, the main controller 3 converts the display image into an adaptive drive signal sequence according to a preset transmission rule;

[0091] Specifically, it is assumed that the electronic paper film 5 is a matrix composed of 100×100 pixels; the main controller 3 determines the color (black or white) that each pixel in the electronic paper film 5 should display according to the displayed image; then, according to the rule of line-by-line scanning, a corresponding driving signal is generated based on the color to be displayed by each pixel. The main controller 3 first combines the driving signals corresponding to the 100 pixels from left to right in the first row into a driving signal sequence, and sends the driving signal sequence through the built-in driving circuit of the electronic paper film 5. Similarly, it is sent line by line until the driving signal sequences corresponding to all the pixels in 100 rows are sent.

[0092] After receiving the driving signal sequence sent by the main controller 3, the electronic paper film 5 controls the directional movement of the built-in charged particles according to the meaning of each driving signal in the driving signal sequence; for example, when receiving a driving signal indicating displaying black, the electronic paper film 5 moves the charged particles with black pigment to the visible surface of the pixel through the electric field; when receiving a driving signal indicating displaying white, the electronic paper film 5 moves the charged particles with white pigment to the visible surface;

[0093] Based on the above method, all the pixels on the electronic paper film 5 are arranged according to the requirements of the driving signal sequence, and finally the display image is formed.

[0094] See also Figure 5 In a preferred embodiment, the low-power heating device for electronic paper further includes: a protective shell 6; the protective shell 6 includes a protective cover plate 6-1, a connection pad 6-2 and a back protective cover 6-3; one side of the connection pad 6-2 is embedded in the side wall of the back protective cover 6-3, and the other side of the connection pad 6-2 is embedded in the protective cover plate 6-1;

[0095] Schematically, the protective shell 6 is used to fix the low-power heating device;

[0096] See also Figure 5 , the protective cover plate 6-1 is Figure 5In the open state, the user can choose between the closed state and the open state. When in the closed state, the protective cover 6-1 is arranged above the upper surface of the electronic paper film 5 in the low-power heating device; the connecting pad 6-2 is Figure 5 The oblique line part in the middle is used to connect the protective cover 6-1 and the back protective cover 6-3; the back protective cover 6-3 is used to protect the entire low-power heating device, which wraps the heating film 1, the temperature sensor 2, the main controller 3, the power supply 4 and the electronic paper film 5.

[0097] See also Figure 6 In a preferred embodiment, the protective shell 6 further includes: a power connection slot 6-4; the power connection slot 6-4 is arranged on the side wall of the back protective cover 6-3;

[0098] The power connection slot 6 - 4 is used to connect an external power source so that the external power source can supplement power to the power source 4 .

[0099] Embodiment 2

[0100] See also Figure 7 , is a flow chart of a low-power heating method for electronic paper provided by an embodiment of the present invention, which is applicable to the low-power heating device for electronic paper, and includes:

[0101] S1. When it is identified that there is a temperature sensor 2 whose collected real-time temperature and real-time ambient temperature are both lower than the preset start-up temperature, the temperature sensor 2 whose real-time temperature and real-time ambient temperature are both lower than the start-up temperature is used as a target temperature sensor, and the heating film partition uniquely corresponding to the target temperature sensor is used as a target heating film partition; wherein each of the heating film partitions 1-1 is correspondingly configured with a unique temperature sensor 2, and there is no overlapping part between the heating film partitions 1-1; the plurality of heating film partitions 1-1 are obtained by dividing a complete heating film 1 according to a preset division rule;

[0102] It should be noted that the target temperature sensor and the temperature sensor 2 are essentially the same in structure.

[0103] S2. Calculate the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time;

[0104] Specifically, the calculation process of the heating power is consistent with that of the first embodiment, the only difference being that one is a method item and the other is a device item, and therefore, it will not be described in detail here.

[0105] S3, controlling the power supply 4 to supply power to the target heating film partition according to the heating power until the real-time temperature of the target heating film partition reaches a preset stop heating temperature, and controlling the power supply 4 to cut off the power supply to the target heating film partition.

[0106] In a preferred embodiment, the heating power required for the target heating film partition is calculated based on the real-time temperature and the preset target heating time, including:

[0107] Calculating a difference between the startup temperature and the real-time temperature to obtain a first difference;

[0108] Calculating the required heat according to a preset specific heat capacity, the mass of the heating film partition, the first difference and a preset heat calculation formula;

[0109] Calculate the actual heat supply required based on the required heat and a preset heat loss coefficient;

[0110] The heating power required for the target heating film partition is calculated based on the actual supplied heat, the target heating time and a preset power calculation formula.

[0111] In a preferred embodiment, the upper surface of each heating film 1 is fixed to the lower surface of a pre-set electronic paper film 5, a main controller 3 is fixed to the lower surface of the heating film 1, and a power supply 4 is fixed to the lower surface of the heating film 1.

[0112] In a preferred embodiment, the low-power heating method applied to electronic paper further includes:

[0113] Acquiring a display image to be displayed on the electronic paper film 5;

[0114] Based on a preset transmission rule, a driving signal sequence adapted to the display image is generated, and based on a driving circuit 5-1 built in the electronic paper film 5, the driving signal sequence is sent to the electronic paper film 5, so that after receiving the driving signal sequence, the electronic paper film 5 controls the directional movement of the charged particles built in the electronic paper film 5 based on the driving signal sequence;

[0115] Specifically, the image display process and principle of the electronic paper film 5 are consistent with those of the first embodiment, and the only difference is that one is a method item and the other is a device item, so they will not be described in detail here.

[0116] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A low-power heating device for electronic paper, characterized in that: include: A plurality of heating film partitions, a plurality of temperature sensors, a main controller and a power supply; there is no overlap between the heating film partitions, and each heating film partition is configured with a unique temperature sensor; the plurality of heating film partitions are obtained by dividing a complete heating film according to a preset division rule; The temperature sensor is used to obtain the real-time ambient temperature and the real-time temperature of the configured heating film partition; and send the real-time temperature and the real-time ambient temperature to the main controller; The main controller is used for, when detecting that there is a heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the preset starting temperature, taking the heating film partition whose real-time temperature and the real-time ambient temperature are both lower than the starting temperature as the target heating film partition; calculating the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time, and controlling the power supply to supply power to the target heating film partition according to the heating power; When it is detected that the real-time temperature of the target heating film partition reaches a preset stop heating temperature, the power supply is controlled to cut off the power supply to the target heating film partition.

2. The low power consumption heating device for electronic paper according to claim 1, characterized in that: The step of calculating the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time includes: Calculating a difference between the startup temperature and the real-time temperature to obtain a first difference; Calculating the required heat according to a preset specific heat capacity, the mass of the heating film partition, the first difference and a preset heat calculation formula; Calculate the actual heat supply required based on the required heat and a preset heat loss coefficient; The heating power required for the target heating film partition is calculated based on the actual supplied heat, the target heating time and a preset power calculation formula.

3. The low power consumption heating device for electronic paper according to claim 2, characterized in that: Also includes: Electronic paper film; the upper surface of the heating film is adhered and fixed to the lower surface of the electronic paper film, the main controller is fixed to the lower surface of the heating film, and the power supply is fixed to the lower surface of the heating film.

4. The low power consumption heating device for electronic paper as claimed in claim 3, characterized in that: The electronic paper film has a built-in driving circuit; the electronic paper film is connected to the main controller through the driving circuit. The main controller is further used to obtain a display image to be displayed on the electronic paper film; and based on a preset transmission rule, generate a driving signal sequence adapted to the display image; Sending the driving signal sequence to the electronic paper film through the driving circuit; The electronic paper film is used to receive the driving signal sequence of the main controller; based on the driving signal sequence, the built-in charged particles are controlled to move in a directional manner to form a pixel arrangement corresponding to the display image.

5. The low power consumption heating device for electronic paper as claimed in claim 3, characterized in that: Also includes: A protective shell; the protective shell comprises a protective cover plate, a connection pad and a back protective cover; one side of the connection pad is embedded in the side wall of the back protective cover, and the other side of the connection pad is embedded in the protective cover plate.

6. The low power consumption heating device for electronic paper as claimed in claim 5, characterized in that: The protective shell further comprises: a power connection slot; the power connection slot is arranged on the side wall of the back protective cover; The power connection slot is used to connect an external power source so that the external power source can supplement power to the power source.

7. A low power consumption heating method for electronic paper, characterized in that: The low-power consumption heating device applicable to the electronic paper comprises: When it is identified that there is a temperature sensor whose collected real-time temperature and real-time ambient temperature are both lower than the preset start-up temperature, the temperature sensor whose real-time temperature and real-time ambient temperature are both lower than the start-up temperature is used as the target temperature sensor, and the heating film partition uniquely corresponding to the target temperature sensor is used as the target heating film partition; wherein each of the heating film partitions is correspondingly configured with a unique temperature sensor, and there is no overlapping part between the heating film partitions; the plurality of heating film partitions are obtained by dividing a complete heating film according to a preset division rule; Calculate the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time; The power supply is controlled to supply power to the target heating film partition according to the heating power until the real-time temperature of the target heating film partition reaches a preset stop heating temperature, and the power supply is controlled to cut off the power supply to the target heating film partition.

8. The low power consumption heating method for electronic paper according to claim 7, characterized in that: The step of calculating the heating power required for the target heating film partition according to the real-time temperature and the preset target heating time includes: Calculating a difference between the startup temperature and the real-time temperature to obtain a first difference; Calculating the required heat according to a preset specific heat capacity, the mass of the heating film partition, the first difference and a preset heat calculation formula; Calculate the actual heat supply required based on the required heat and a preset heat loss coefficient; The heating power required for the target heating film partition is calculated based on the actual supplied heat, the target heating time and a preset power calculation formula.

9. The low power consumption heating method for electronic paper according to claim 7, characterized in that: The upper surface of each heating film is fixedly attached to the lower surface of the pre-set electronic paper film, a main controller is fixedly attached to the lower surface of the heating film, and a power supply is fixedly attached to the lower surface of the heating film.

10. The low power consumption heating method for electronic paper according to claim 9, characterized in that: Also includes: Acquiring a display image to be displayed on the electronic paper film; Based on preset transmission rules, a driving signal sequence adapted to the displayed image is generated, and based on a driving circuit built into the electronic paper film, the driving signal sequence is sent to the electronic paper film, so that after receiving the driving signal sequence, the electronic paper film controls the directional movement of the charged particles built into the electronic paper film based on the driving signal sequence.

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