A battery monitoring method for explosion-proof mobile phone and explosion-proof mobile phone

Abstract

The present invention relates to a battery monitoring method for an explosion-proof mobile phone and an explosion-proof mobile phone, wherein the explosion-proof mobile phone includes a battery and a control module, a plurality of detection positions are arranged on the battery surface, a first fiber grating and a temperature detection unit are arranged on each detection position, and the control module is used to first obtain a plurality of first detection data based on a plurality of first fiber gratings, obtain a plurality of second detection data based on a plurality of temperature detection units, and then obtain deformation data of each detection position on the battery surface according to the first detection data and the second detection data, and finally adjust the battery monitoring strategy according to the deformation data. Compared with the prior art, the present invention monitors the deformation degree of the battery through the first fiber grating, and corrects the data of the fiber grating based on the temperature through the temperature monitoring unit to obtain accurate deformation data, and then adjusts the battery monitoring strategy according to the battery condition reflected by the deformation data, thereby solving the problem that the battery monitoring strategy of the explosion-proof mobile phone in the prior art is not flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof mobile phone battery management, and in particular to a battery monitoring method for an explosion-proof mobile phone and an explosion-proof mobile phone. Background Art

[0002] An explosion-proof mobile phone is a special mobile communication device, a high-tech product specially designed for use in potentially hazardous environments. These environments usually include but are not limited to industrial sites where flammable gases, explosive dusts, flammable liquid vapors or other flammable substances may exist. The design and manufacture of such devices must follow strict safety standards to ensure that they will not become ignition sources under normal use and foreseeable fault conditions, thereby avoiding explosions or fires.

[0003] Among the many components of explosion-proof mobile phones, battery safety is particularly critical. Battery monitoring systems need to implement more stringent standards, including accurate monitoring of key parameters such as battery voltage, current, temperature and charging status. In addition, the battery management system must be able to respond promptly to any abnormal conditions such as overcharging, over-discharging or over-temperature to prevent potential safety risks.

[0004] Nevertheless, the current explosion-proof mobile phone battery monitoring strategies on the market generally adopt preset fixed strategies, which limits their adaptability to different usage environments and battery aging states. Therefore, people need a more flexible battery monitoring method for explosion-proof mobile phones. Summary of the invention

[0005] Therefore, the present invention provides a battery monitoring method for an explosion-proof mobile phone and an explosion-proof mobile phone, so as to solve the problem that the battery monitoring strategy of the explosion-proof mobile phone in the prior art is not flexible.

[0006] The present invention provides a battery monitoring method for an explosion-proof mobile phone, which is applied to the explosion-proof mobile phone. The explosion-proof mobile phone includes a battery and a control module. A plurality of detection positions are arranged on the surface of the battery. A first fiber grating and a temperature detection unit are arranged on each detection position. The control module is electrically connected to the battery, the first fiber grating and the temperature detection unit. The control module is used to execute the battery monitoring method for the explosion-proof mobile phone. The method includes:

[0007] Obtain a plurality of first detection data based on a plurality of first fiber gratings, and obtain a plurality of second detection data based on a plurality of temperature detection units;

[0008] Obtaining deformation data of each detection position on the battery surface according to the first detection data and the second detection data;

[0009] The battery monitoring strategy is adjusted according to the deformation data of all detection positions, and the battery monitoring is performed based on the adjusted battery monitoring strategy.

[0010] The present invention also provides a preferred solution: the temperature monitoring unit includes a second fiber Bragg grating, the second fiber Bragg grating and the first fiber Bragg grating in the same detection position have the same arrangement direction, and the effective photoelastic coefficient, thermal expansion coefficient and thermo-optic coefficient of the second fiber Bragg grating and the first fiber Bragg grating in the same detection position are different; the first detection data includes a first initial Bragg wavelength and a first Bragg wavelength change obtained by the first fiber Bragg grating, and the second detection data includes a second initial Bragg wavelength and a second Bragg wavelength change obtained by the second fiber Bragg grating; the deformation data includes a first deformation amount, and the first deformation amount is the deformation amount of the battery surface at a detection position along the arrangement direction of the first fiber Bragg grating in the detection position; according to the first detection data and the second detection data, the deformation data of each detection position on the battery surface is obtained, including:

[0011] Taking the temperature change and the first deformation amount of each detection position as variables, and based on the first initial Bragg wavelength, the first Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the first fiber grating, a first equation for each detection position is established;

[0012] Taking the temperature change and the first deformation amount of each detection position as variables, and based on the second initial Bragg wavelength, the second Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the second fiber grating, a second equation for each detection position is established;

[0013] The first equation and the second equation are solved to obtain specific values ​​of the temperature change and the first deformation amount at each detection position.

[0014] The present invention also provides a preferred solution: a third fiber Bragg grating is further arranged at each detection position, the second fiber Bragg grating and the third fiber Bragg grating in the same detection position have different arrangement directions, and the third fiber Bragg grating is electrically connected to the control module; the third fiber Bragg grating is used to detect and obtain a third initial Bragg wavelength and a third Bragg wavelength change; the deformation data also includes a third deformation amount, which is the deformation amount of the battery surface at a detection position along the arrangement direction of the third fiber Bragg grating in the detection position; according to the first detection data and the second detection data, the deformation data of each detection position on the battery surface is obtained, and further includes:

[0015] The third deformation amount at each detection position is obtained based on the temperature change amount at each detection position, the third initial Bragg wavelength, the third Bragg wavelength change amount, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the third fiber grating.

[0016] The present invention also provides a preferred solution: adjusting the battery monitoring strategy according to the deformation data of all detection positions, and performing battery monitoring based on the adjusted battery monitoring strategy, including:

[0017] Acquire multiple historical temperature changes, multiple historical first deformations, and multiple historical third deformations of the target detection position, wherein the target detection position is a detection position to be analyzed currently, and the historical temperature change, the historical first deformation, and the historical third deformation are respectively the temperature change, the first deformation, and the third deformation obtained by multiple detections of the target detection position in the past preset time period;

[0018] Determining a battery monitoring frequency according to a plurality of historical temperature change amounts, a plurality of historical first deformation amounts, and a plurality of historical third deformation amounts;

[0019] Perform battery monitoring based on the battery monitoring frequency.

[0020] The present invention also provides a preferred solution: determining the battery monitoring frequency according to the degree of change of multiple historical temperature changes, multiple historical first deformation amounts, and multiple historical third deformation amounts, including:

[0021] Arranging a plurality of historical temperature changes, a plurality of historical first deformations, and a plurality of historical third deformations in chronological order to obtain a temperature change sequence, a first deformation sequence, and a third deformation sequence, respectively;

[0022] Setting detection windows with the same length and position on the temperature change sequence, the first deformation sequence and the third deformation sequence respectively;

[0023] The temperature risk value is obtained according to the degree of change of the value in the detection window in the temperature change sequence;

[0024] Obtaining a first deformation risk value according to a degree of change of values ​​in the detection window in the first deformation sequence;

[0025] Obtaining a third deformation risk value according to a degree of change of values ​​in the third deformation sequence within the detection window;

[0026] Obtaining an associated risk value according to the similarity of the numerical value changes in the temperature change sequence, the first deformation sequence, and the third deformation sequence within the detection window;

[0027] According to the temperature risk value, the first deformation risk value, the third deformation risk value and the associated risk value, a comprehensive risk value is obtained;

[0028] According to the comprehensive risk value, the battery monitoring frequency is obtained.

[0029] The present invention also provides a preferred solution: obtaining an associated risk value according to the similarity of the numerical value changes in the temperature change sequence, the first deformation sequence and the third deformation sequence within the detection window, including:

[0030] Subtract the values ​​in the detection window of the first deformation sequence from the values ​​in the detection window of the temperature change sequence in sequence to obtain a first difference value sequence;

[0031] Subtract the values ​​in the detection window of the third deformation sequence from the values ​​in the detection window of the temperature change sequence in sequence to obtain a third difference value sequence;

[0032] The associated risk value is obtained according to the sum of all values ​​in the first difference sequence and the third difference sequence.

[0033] The present invention also provides a preferred solution: the battery monitoring frequency is proportional to the comprehensive risk value; the battery monitoring frequency is determined according to the degree of change of multiple historical temperature changes, multiple historical first deformation amounts and multiple historical third deformation amounts, and further includes:

[0034] Compare the comprehensive risk value obtained from this calculation with the comprehensive risk value obtained from the previous calculation;

[0035] If the comprehensive risk value increases, the detection window length is reduced by one unit until the preset minimum length is reached;

[0036] If the comprehensive risk value decreases, the detection window is increased by one unit length until the preset maximum length is reached.

[0037] The present invention also provides an explosion-proof mobile phone, comprising a battery and a control module, wherein a plurality of detection positions are arranged on the surface of the battery, each detection position is provided with a first fiber grating and a temperature detection unit, the control module is electrically connected to the battery, the first fiber grating and the temperature detection unit, and the control module is used for:

[0038] Obtain a plurality of first detection data based on a plurality of first fiber gratings, and obtain a plurality of second detection data based on a plurality of temperature detection units;

[0039] Obtaining deformation data of each detection position on the battery surface according to the first detection data and the second detection data;

[0040] The battery monitoring strategy is adjusted according to the deformation data of all detection positions, and the battery monitoring is performed based on the adjusted battery monitoring strategy.

[0041] The present invention also provides a preferred solution: the temperature monitoring unit includes a second fiber grating, the arrangement direction of the second fiber grating in the same detection position is the same as that of the first fiber grating, and the effective photoelastic coefficient, thermal expansion coefficient and thermo-optical coefficient of the second fiber grating in the same detection position are different from those of the first fiber grating.

[0042] The present invention also provides a preferred solution: a third fiber Bragg grating is also arranged at each detection position, the second fiber Bragg grating and the third fiber Bragg grating in the same detection position are arranged in different directions, and the third fiber Bragg grating is electrically connected to the control module.

[0043] The beneficial effects of adopting the above embodiment are:

[0044] The present invention provides a battery monitoring method for an explosion-proof mobile phone and an explosion-proof mobile phone, wherein the explosion-proof mobile phone includes a battery and a control module, a plurality of detection positions are arranged on the surface of the battery, a first fiber grating and a temperature detection unit are arranged on each detection position, the control module is electrically connected to the battery, the first fiber grating and the temperature detection unit, and the control module is used to execute the battery monitoring method for the explosion-proof mobile phone, which first obtains a plurality of first detection data based on a plurality of first fiber gratings, obtains a plurality of second detection data based on a plurality of temperature detection units, and then obtains deformation data of each detection position on the battery surface according to the first detection data and the second detection data, and finally adjusts the battery monitoring strategy according to the deformation data of all detection positions, and performs battery monitoring based on the adjusted battery monitoring strategy. Compared with the prior art, the present invention monitors the deformation degree of the battery through the first fiber grating, and corrects the data of the fiber grating based on the temperature through the temperature monitoring unit to obtain accurate deformation data, and then adjusts the battery monitoring strategy according to the battery condition reflected by the deformation data, thereby solving the problem that the battery monitoring strategy of the explosion-proof mobile phone in the prior art is not flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A method flow chart of an embodiment of a battery monitoring method for an explosion-proof mobile phone provided by the present invention;

[0046] Figure 2 for Figure 1 Specific step diagram of step S103 in an embodiment;

[0047] Figure 3 This is a schematic diagram of the structure of the battery in the explosion-proof mobile phone provided by the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Combination Figure 1As shown, a specific embodiment of the present invention discloses a battery monitoring method for an explosion-proof mobile phone, which is applied to an explosion-proof mobile phone. The explosion-proof mobile phone includes a battery and a control module. A plurality of detection positions are arranged on the surface of the battery. A first fiber grating and a temperature detection unit are arranged on each detection position. The control module is electrically connected to the battery, the first fiber grating and the temperature detection unit. The control module is used to execute the battery monitoring method for the explosion-proof mobile phone. The method includes:

[0050] S101, obtaining a plurality of first detection data based on a plurality of first fiber gratings, and obtaining a plurality of second detection data based on a plurality of temperature detection units;

[0051] S102, obtaining deformation data of each detection position on the battery surface according to the first detection data and the second detection data;

[0052] S103: adjusting the battery monitoring strategy according to the deformation data of all detection positions, and performing battery monitoring based on the adjusted battery monitoring strategy.

[0053] Compared with the prior art, the present invention monitors the deformation degree of the battery through a first fiber grating, and corrects the data of the fiber grating based on temperature through a temperature monitoring unit to obtain accurate deformation data, and then adjusts the battery monitoring strategy according to the battery condition reflected by the deformation data, thereby solving the problem that the battery monitoring strategy of the explosion-proof mobile phone in the prior art is not flexible.

[0054] Fiber Bragg grating is an optical waveguide structure made by utilizing the photosensitive properties of optical fiber materials. It reflects light signals of specific wavelengths by forming periodic changes in the refractive index inside the optical fiber, while allowing light signals of other wavelengths to pass through. A key feature of fiber Bragg gratings is that they are highly stable and sensitive to environmental changes. Most importantly, fiber Bragg grating sensors do not require electrical energy when working because they detect changes in temperature and strain by measuring changes in light wavelength. This passive characteristic allows fiber Bragg grating sensors to operate safely in potentially explosive environments because they do not generate electric sparks themselves and are not interfered by external electromagnetic signals, making them particularly suitable for the design concept of intrinsic safety of explosion-proof mobile phones.

[0055] For mobile phone batteries, heat will inevitably be generated when they are working, and the heat will affect the value detected by the fiber Bragg grating. Therefore, this embodiment also needs to set a temperature monitoring unit (such as a temperature sensor such as a thermistor) to correct the error of the detection data of the first fiber Bragg grating.

[0056] After knowing the battery deformation data, the battery monitoring strategy can be adjusted, for example: increasing the monitoring frequency of battery deformation and other key parameters (such as voltage, current, temperature) to detect potential problems more promptly. Or, combined with deformation data, other performance indicators of the battery can be monitored, such as internal resistance, number of charge and discharge cycles, etc., to obtain more comprehensive battery status information.

[0057] Further, in a preferred embodiment, the temperature monitoring unit includes a second fiber grating, the second fiber grating in the same detection position has the same arrangement direction as the first fiber grating, and the effective photoelastic coefficient, thermal expansion coefficient and thermo-optic coefficient of the second fiber grating in the same detection position are different from those of the first fiber grating; the first detection data includes a first initial Bragg wavelength and a change in the first Bragg wavelength detected by the first fiber grating, and the second detection data includes a second initial Bragg wavelength and a change in the second Bragg wavelength detected by the second fiber grating; the deformation data includes a first deformation amount, and the first deformation amount is a deformation amount of the battery surface at a detection position along the arrangement direction of the first fiber grating in the detection position.

[0058] On this basis, the above step S102, based on the first detection data and the second detection data, obtains the deformation data of each detection position on the battery surface, specifically including:

[0059] Taking the temperature change and the first deformation amount of each detection position as variables, and based on the first initial Bragg wavelength, the first Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the first fiber grating, a first equation for each detection position is established;

[0060] Taking the temperature change and the first deformation amount of each detection position as variables, and based on the second initial Bragg wavelength, the second Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the second fiber grating, a second equation for each detection position is established;

[0061] The first equation and the second equation are solved to obtain specific values ​​of the temperature change and the first deformation amount at each detection position.

[0062] This embodiment also uses fiber Bragg grating as the temperature monitoring unit, so that the temperature monitoring unit also has the characteristic of being passive, so that this solution can further improve the safety of the explosion-proof mobile phone while realizing dynamic adjustment of the battery monitoring strategy.

[0063] The principle formula of fiber Bragg grating is as follows:

[0064] ;

[0065] in, is the Bragg wavelength change measured by the fiber Bragg grating, is the initial Bragg wavelength of the fiber Bragg grating, is the effective photoelastic coefficient of the fiber Bragg grating, is the deformation of the fiber Bragg grating, is the thermal expansion coefficient of the fiber Bragg grating, is the thermo-optical coefficient of the fiber Bragg grating, is the temperature change of the fiber Bragg grating.

[0066] The purpose of this embodiment is to artificially define several smaller detection positions on the battery surface. At this time, the temperature changes felt by the first fiber grating and the second fiber grating in the detection position can be regarded as the same. At the same time, the same arrangement direction of the first fiber grating and the second fiber grating means that the deformations that can be detected by the two are also the same. Then, if the characteristic parameters of the first fiber grating and the second fiber grating are different (effective photoelastic coefficient, thermal expansion coefficient and thermo-optic coefficient), the first equation and the second equation can be established for the two respectively based on the above formula, and then the temperature and the first deformation can be obtained by solving them simultaneously.

[0067] Furthermore, in a preferred embodiment, a third fiber grating is provided at each detection position, the second fiber grating and the third fiber grating in the same detection position have different arrangement directions, and the third fiber grating is electrically connected to the control module; the third fiber grating is used to detect and obtain a third initial Bragg wavelength and a change in the third Bragg wavelength; the deformation data also includes a third deformation amount, which is the deformation amount of the battery surface at a detection position along the arrangement direction of the third fiber grating in the detection position.

[0068] On this basis, the above step S102, obtaining the deformation data of each detection position on the battery surface according to the first detection data and the second detection data, also includes:

[0069] The third deformation amount at each detection position is obtained based on the temperature change amount at each detection position, the third initial Bragg wavelength, the third Bragg wavelength change amount, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the third fiber grating.

[0070] In the same detection position, the temperature can be considered to be consistent everywhere, but for a physical quantity such as deformation, the deformation in different directions may be different. Therefore, this embodiment is based on the second fiber grating, and further adds a third fiber grating with a different detection direction from the first fiber grating to measure deformation in different directions.

[0071] Obviously, the detection data of the third fiber Bragg grating will also be affected by temperature, but the temperature in the detection area has been determined by the first fiber Bragg grating and the second fiber Bragg grating, so the third deformation can be directly obtained accurately through the third fiber Bragg grating, without the need to set up an additional temperature monitoring unit for temperature correction. It can be seen that this embodiment cleverly continues the design ideas of the previous embodiment, and uses fiber Bragg grating to achieve the maximum accuracy of measuring the deformation characteristics of multiple directions of the battery with the least components under the intrinsically safe condition of passive.

[0072] It is understandable that after obtaining the first deformation variable and the second deformation variable, the battery monitoring strategy can be adjusted according to specific needs using any artificially set rules. For example, the difference between the maximum and minimum values ​​of all first deformation variables and the second deformation variable can be counted. If it is too large, it indicates that the battery is abnormal. At this time, the monitoring parameters such as current and voltage should be reduced to reduce the probability of explosion. For another example, the difference between the first deformation variable and the second deformation variable in the same detection position can be compared. If the difference between the two is too large, other means are called to perform more accurate deep battery detection.

[0073] The present invention provides a preferred battery monitoring strategy adjustment method, combined with Figure 2 As shown, in a preferred embodiment, step S103, adjusting the battery monitoring strategy according to the deformation data of all detection positions, and performing battery monitoring based on the adjusted battery monitoring strategy, specifically includes:

[0074] S201, obtaining a plurality of historical temperature changes, a plurality of historical first deformations, and a plurality of historical third deformations at a target detection position, wherein the target detection position is a detection position to be currently analyzed, and the historical temperature change, the historical first deformation, and the historical third deformation are respectively the temperature change, the first deformation, and the third deformation obtained by multiple detections of the target detection position in a preset time period in the past;

[0075] S202, determining a battery monitoring frequency according to a plurality of historical temperature change amounts, a plurality of historical first deformation amounts, and a plurality of historical third deformation amounts;

[0076] S203: Perform battery monitoring based on the battery monitoring frequency.

[0077] In the above process, the target detection position is a detection position to be analyzed currently, and the specific detection position can be flexibly determined according to actual conditions. For example, it can be a detection position where the difference between the first deformation amount and the second deformation amount is large, or it can be a more critical position artificially pre-selected according to the battery structure.

[0078] On the one hand, when adjusting the battery monitoring strategy, this embodiment, in addition to the deformation amount, also utilizes the temperature change amount obtained by obtaining the precise deformation amount in the previous text to maximize data utilization efficiency. On the other hand, when adjusting the battery monitoring strategy, the present invention adjusts the battery monitoring frequency to improve safety. For example, when the battery deformation is too large or the temperature change is too drastic, the monitoring frequency should be increased to improve safety so that a more timely response can be made when a danger occurs. Under other normal circumstances, the monitoring frequency can be reduced to improve the daily usability of the explosion-proof mobile phone, such as reducing the load pressure of the processing chip, improving system fluency, and increasing battery life.

[0079] It is understandable that any existing method can be used according to actual needs to measure the degree of change of historical temperature changes, multiple historical first deformation variables and multiple historical third deformation variables, such as finding the maximum change rate, calculating statistical features such as variance, etc.

[0080] The present invention provides a preferred analysis method. In a preferred embodiment, the above step S202, determining the battery monitoring frequency according to the degree of change of multiple historical temperature changes, multiple historical first deformation amounts, and multiple historical third deformation amounts, specifically includes:

[0081] Arranging a plurality of historical temperature changes, a plurality of historical first deformations, and a plurality of historical third deformations in chronological order to obtain a temperature change sequence, a first deformation sequence, and a third deformation sequence, respectively;

[0082] Setting detection windows with the same length and position on the temperature change sequence, the first deformation sequence and the third deformation sequence respectively;

[0083] The temperature risk value is obtained according to the degree of change of the value in the detection window in the temperature change sequence;

[0084] Obtaining a first deformation risk value according to a degree of change of values ​​in the detection window in the first deformation sequence;

[0085] Obtaining a third deformation risk value according to a degree of change of values ​​in the third deformation sequence within the detection window;

[0086] Obtaining an associated risk value according to the similarity of the numerical value changes in the temperature change sequence, the first deformation sequence, and the third deformation sequence within the detection window;

[0087] According to the temperature risk value, the first deformation risk value, the third deformation risk value and the associated risk value, a comprehensive risk value is obtained;

[0088] According to the comprehensive risk value, the battery monitoring frequency is obtained.

[0089] It can be understood that the end position of the detection window is the current moment, and the significance of setting the detection window is to control the amount of analysis data. The significance of the above process is to simultaneously analyze the temperature change, the first deformation and the third deformation data to obtain a comprehensive risk value that can characterize the risk state, and then adjust the battery monitoring frequency. The comprehensive risk value is determined based on the temperature risk value, the first deformation risk value, the third deformation risk value and the associated risk value, wherein the temperature risk value, the first deformation risk value and the third deformation risk value are the risk levels reflected by the change characteristics of the historical temperature change, the historical first deformation and the historical third deformation, respectively. In practice, how to calculate the temperature risk value, the first deformation risk value and the third deformation risk value can also be flexibly designed according to the specific situation.

[0090] Taking the temperature risk value as an example, a preset temperature threshold can be designed based on experience, the difference between the value in the detection window in the temperature change sequence and the preset temperature threshold is calculated, and then these differences are summed. The size of the sum indicates that the battery has been in a high temperature state in the past preset time period. The larger the sum, the longer the battery has been in a high temperature state. At this time, a simple linear change of the sum can be used as the temperature risk value. The same is true for the first deformation risk value and the third deformation risk value.

[0091] The associated risk value indicates the correlation between temperature change and deformation change. For example, when the battery temperature remains unchanged but the deformation is more obvious, or when the battery temperature changes drastically but the deformation is less, the battery status reflected is completely different. Combining the temperature risk value, the first deformation risk value, the third deformation risk value and the associated risk value, a more scientific and reasonable comprehensive risk value can be obtained, so as to adjust the monitoring frequency more reasonably.

[0092] It is understandable that in practice, any existing method can be used to obtain the battery monitoring frequency based on the comprehensive risk value according to specific needs, and a simple linear formula can be used for transformation. Similarly, the associated risk value can also be calculated in any existing way, such as the Pearson correlation coefficient, and the present invention further provides a preferred implementation.

[0093] In a preferred embodiment, the step of calculating the associated risk value is as follows: obtaining the associated risk value according to the similarity of the numerical changes in the temperature change sequence, the first deformation sequence and the third deformation sequence within the detection window, specifically comprising:

[0094] Subtract the values ​​in the detection window of the first deformation sequence from the values ​​in the detection window of the temperature change sequence in sequence to obtain a first difference value sequence;

[0095] Subtract the values ​​in the detection window of the third deformation sequence from the values ​​in the detection window of the temperature change sequence in sequence to obtain a third difference value sequence;

[0096] The associated risk value is obtained according to the sum of all values ​​in the first difference sequence and the third difference sequence.

[0097] The above process uses the difference between deformation data and temperature data to obtain the first difference sequence and the third difference sequence that characterize the relationship between deformation and temperature, and then calculates the difference by summing to obtain the associated risk value. The key point is that the above process only performs two calculation behaviors, summing and subtracting, without the more complex operation of multiplication. For computers, the amount of calculation is greatly reduced, and for explosion-proof mobile phones, this design method further reduces the movement of its internal electronic devices, further improving the explosion-proof level.

[0098] Furthermore, in a preferred embodiment, the above step S202, determining the battery monitoring frequency according to the degree of change of the multiple historical temperature changes, the multiple historical first deformation amounts, and the multiple historical third deformation amounts, further includes:

[0099] Compare the comprehensive risk value obtained from this calculation with the comprehensive risk value obtained from the previous calculation;

[0100] If the comprehensive risk value increases, the detection window length is reduced by one unit until the preset minimum length is reached;

[0101] If the comprehensive risk value decreases, the detection window is increased by one unit length until the preset maximum length is reached.

[0102] This embodiment adopts the detection window method to select the data for calculating the associated risk value, and the above process realizes the dynamic adjustment of the detection window. When the comprehensive risk value increases continuously, the detection window is reduced, and the less data analyzed, the more conducive to high-frequency detection (for example, the higher the risk value, the higher the battery monitoring frequency). When the comprehensive risk value decreases continuously, the detection window will be, so that the control module obtains a wider analysis field of view to obtain more accurate analysis results.

[0103] Combination Figure 3 As shown, the present invention also provides an explosion-proof mobile phone, including a battery 310 and a control module, a plurality of detection positions 320 are arranged on the surface of the battery 310, each detection position 320 is provided with a first fiber grating 330 and a temperature detection unit 340, the control module is electrically connected to the battery 310, the first fiber grating 330 and the temperature detection unit 340, and the control module is used to:

[0104] A plurality of first detection data is obtained based on the plurality of first fiber gratings 330, and a plurality of second detection data is obtained based on the plurality of temperature detection units 340;

[0105] Obtaining deformation data of each detection position 320 on the surface of the battery 310 according to the first detection data and the second detection data;

[0106] The battery 310 monitoring strategy is adjusted according to the deformation data of all the detection positions 320 , and the battery 310 monitoring is performed based on the adjusted battery 310 monitoring strategy.

[0107] Furthermore, in a preferred embodiment, the temperature monitoring unit includes a second fiber grating, and the arrangement direction of the second fiber grating in the same detection position 320 and the first fiber grating 330 is the same, and the effective photoelastic coefficient, thermal expansion coefficient and thermo-optical coefficient of the second fiber grating in the same detection position 320 and the first fiber grating 330 are different.

[0108] Furthermore, in a preferred embodiment, a third fiber Bragg grating 350 is disposed at each detection position 320, and the second fiber Bragg grating and the third fiber Bragg grating 350 in the same detection position 320 are arranged in different directions, and the third fiber Bragg grating 350 is electrically connected to the control module.

[0109] It can be understood that the corresponding structures provided in the above embodiments are used to implement the technical solutions described in the above method embodiments. The specific principles and technical effects of the above structures can be found in the corresponding contents of the above method embodiments, which will not be described here. In addition, it should be noted that the structural sizes in the drawings (such as the relative size and spacing of the fiber grating, the range size of the detection position, etc.) are exaggerated only for the convenience of understanding and do not represent the actual structural sizes of the real objects.

[0110] The present invention provides a battery monitoring method for an explosion-proof mobile phone and an explosion-proof mobile phone, wherein the explosion-proof mobile phone includes a battery and a control module, a plurality of detection positions are arranged on the surface of the battery, a first fiber grating and a temperature detection unit are arranged on each detection position, the control module is electrically connected to the battery, the first fiber grating and the temperature detection unit, and the control module is used to execute the battery monitoring method for the explosion-proof mobile phone, which first obtains a plurality of first detection data based on a plurality of first fiber gratings, obtains a plurality of second detection data based on a plurality of temperature detection units, and then obtains deformation data of each detection position on the battery surface according to the first detection data and the second detection data, and finally adjusts the battery monitoring strategy according to the deformation data of all detection positions, and performs battery monitoring based on the adjusted battery monitoring strategy. Compared with the prior art, the present invention monitors the deformation degree of the battery through the first fiber grating, and corrects the data of the fiber grating based on the temperature through the temperature monitoring unit to obtain accurate deformation data, and then adjusts the battery monitoring strategy according to the battery condition reflected by the deformation data, thereby solving the problem that the battery monitoring strategy of the explosion-proof mobile phone in the prior art is not flexible.

[0111] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0112] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery monitoring method for an explosion-proof mobile phone, characterized in that: Applied to explosion-proof mobile phones, the explosion-proof mobile phones include batteries and control modules, multiple detection positions are set on the battery surface, each detection position is provided with a first fiber grating and a temperature detection unit, the control module is electrically connected to the battery, the first fiber grating and the temperature detection unit, the control module is used to execute the battery monitoring method of the explosion-proof mobile phone, the method includes: Obtain a plurality of first detection data based on a plurality of first fiber gratings, and obtain a plurality of second detection data based on a plurality of temperature detection units; Obtaining deformation data of each detection position on the battery surface according to the first detection data and the second detection data; Adjusting the battery monitoring strategy according to the deformation data of all detection positions, and performing battery monitoring based on the adjusted battery monitoring strategy; The temperature monitoring unit includes a second fiber Bragg grating, the second fiber Bragg grating and the first fiber Bragg grating in the same detection position have the same arrangement direction, and the effective photoelastic coefficient, thermal expansion coefficient and thermo-optic coefficient of the second fiber Bragg grating and the first fiber Bragg grating in the same detection position are different; the first detection data includes a first initial Bragg wavelength and a first Bragg wavelength change obtained by the first fiber Bragg grating detection, and the second detection data includes a second initial Bragg wavelength and a second Bragg wavelength change obtained by the second fiber Bragg grating detection; the deformation data includes a first deformation amount, and the first deformation amount is a deformation amount of the battery surface at a detection position along the arrangement direction of the first fiber Bragg grating in the detection position; according to the first detection data and the second detection data, deformation data of each detection position on the battery surface is obtained, including: Taking the temperature change and the first deformation amount of each detection position as variables, and based on the first initial Bragg wavelength, the first Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the first fiber grating, a first equation for each detection position is established; Taking the temperature change and the first deformation amount of each detection position as variables, and based on the second initial Bragg wavelength, the second Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the second fiber grating, a second equation for each detection position is established; Solving the first equation and the second equation to obtain specific values ​​of the temperature change and the first deformation amount at each detection position; A third fiber Bragg grating is also arranged at each detection position, the second fiber Bragg grating and the third fiber Bragg grating in the same detection position have different arrangement directions, and the third fiber Bragg grating is electrically connected to the control module; the third fiber Bragg grating is used to detect and obtain the third initial Bragg wavelength and the third Bragg wavelength change; the deformation data also includes a third deformation amount, which is the deformation amount of the battery surface at a detection position along the arrangement direction of the third fiber Bragg grating in the detection position; according to the first detection data and the second detection data, the deformation data of each detection position on the battery surface is obtained, and also includes: Obtaining a third deformation amount at each detection position based on the temperature variation at each detection position, the third initial Bragg wavelength, the variation of the third Bragg wavelength, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the third fiber grating; The battery monitoring strategy is adjusted according to the deformation data of all detection positions, and the battery monitoring is performed based on the adjusted battery monitoring strategy, including: Acquire multiple historical temperature changes, multiple historical first deformations, and multiple historical third deformations of the target detection position, wherein the target detection position is a detection position to be analyzed currently, and the historical temperature change, the historical first deformation, and the historical third deformation are respectively the temperature change, the first deformation, and the third deformation obtained by multiple detections of the target detection position in the past preset time period; Determining a battery monitoring frequency according to a plurality of historical temperature change amounts, a plurality of historical first deformation amounts, and a plurality of historical third deformation amounts; Perform battery monitoring based on the battery monitoring frequency.

2. The method for monitoring the battery of an explosion-proof mobile phone according to claim 1, characterized in that: Determining a battery monitoring frequency according to a plurality of historical temperature change quantities, a plurality of historical first deformation quantities, and a plurality of historical third deformation quantities includes: Arranging a plurality of historical temperature changes, a plurality of historical first deformations, and a plurality of historical third deformations in chronological order to obtain a temperature change sequence, a first deformation sequence, and a third deformation sequence, respectively; Setting detection windows with the same length and position on the temperature change sequence, the first deformation sequence and the third deformation sequence respectively; The temperature risk value is obtained according to the degree of change of the value in the detection window in the temperature change sequence; Obtaining a first deformation risk value according to a degree of change of values ​​in the detection window in the first deformation sequence; Obtaining a third deformation risk value according to a degree of change of values ​​in the third deformation sequence within the detection window; Obtaining an associated risk value according to the similarity of the numerical value changes in the temperature change sequence, the first deformation sequence, and the third deformation sequence within the detection window; According to the temperature risk value, the first deformation risk value, the third deformation risk value and the associated risk value, a comprehensive risk value is obtained; According to the comprehensive risk value, the battery monitoring frequency is obtained.

3. The battery monitoring method for explosion-proof mobile phones according to claim 2, characterized in that: According to the similarity of the numerical changes in the temperature change sequence, the first deformation sequence and the third deformation sequence within the detection window, the associated risk value is obtained, including: Subtract the values ​​in the detection window of the first deformation sequence from the values ​​in the detection window of the temperature change sequence in sequence to obtain a first difference value sequence; Subtract the values ​​in the detection window of the third deformation sequence from the values ​​in the detection window of the temperature change sequence in sequence to obtain a third difference value sequence; The associated risk value is obtained according to the sum of all values ​​in the first difference sequence and the third difference sequence.

4. The method for monitoring the battery of an explosion-proof mobile phone according to claim 2, characterized in that: The battery monitoring frequency is proportional to the comprehensive risk value; the battery monitoring frequency is determined according to the degree of change of multiple historical temperature changes, multiple historical first deformation quantities and multiple historical third deformation quantities, and also includes: Compare the comprehensive risk value obtained from this calculation with the comprehensive risk value obtained from the previous calculation; If the comprehensive risk value increases, the detection window length is reduced by one unit until the preset minimum length is reached; If the comprehensive risk value decreases, the detection window is increased by one unit length until the preset maximum length is reached.

5. An explosion-proof mobile phone, characterized in that: The invention comprises a battery and a control module. A plurality of detection positions are arranged on the surface of the battery. A first fiber grating and a temperature detection unit are arranged on each detection position. The control module is electrically connected to the battery, the first fiber grating and the temperature detection unit. The control module is used for: Obtain a plurality of first detection data based on a plurality of first fiber gratings, and obtain a plurality of second detection data based on a plurality of temperature detection units; Obtaining deformation data of each detection position on the battery surface according to the first detection data and the second detection data; Adjusting the battery monitoring strategy according to the deformation data of all detection positions, and performing battery monitoring based on the adjusted battery monitoring strategy; The temperature monitoring unit includes a second fiber Bragg grating, the second fiber Bragg grating and the first fiber Bragg grating in the same detection position have the same arrangement direction, and the effective photoelastic coefficient, thermal expansion coefficient and thermo-optic coefficient of the second fiber Bragg grating and the first fiber Bragg grating in the same detection position are different; the first detection data includes a first initial Bragg wavelength and a first Bragg wavelength change obtained by the first fiber Bragg grating detection, and the second detection data includes a second initial Bragg wavelength and a second Bragg wavelength change obtained by the second fiber Bragg grating detection; the deformation data includes a first deformation amount, and the first deformation amount is a deformation amount of the battery surface at a detection position along the arrangement direction of the first fiber Bragg grating in the detection position; according to the first detection data and the second detection data, deformation data of each detection position on the battery surface is obtained, including: Taking the temperature change and the first deformation amount of each detection position as variables, and based on the first initial Bragg wavelength, the first Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the first fiber grating, a first equation for each detection position is established; Taking the temperature change and the first deformation amount of each detection position as variables, and based on the second initial Bragg wavelength, the second Bragg wavelength change, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the second fiber grating, a second equation for each detection position is established; Solving the first equation and the second equation to obtain specific values ​​of the temperature change and the first deformation amount at each detection position; A third fiber Bragg grating is also arranged at each detection position, the second fiber Bragg grating and the third fiber Bragg grating in the same detection position have different arrangement directions, and the third fiber Bragg grating is electrically connected to the control module; the third fiber Bragg grating is used to detect and obtain the third initial Bragg wavelength and the third Bragg wavelength change; the deformation data also includes a third deformation amount, which is the deformation amount of the battery surface at a detection position along the arrangement direction of the third fiber Bragg grating in the detection position; according to the first detection data and the second detection data, the deformation data of each detection position on the battery surface is obtained, and also includes: Obtaining a third deformation amount at each detection position based on the temperature variation at each detection position, the third initial Bragg wavelength, the variation of the third Bragg wavelength, the effective photoelastic coefficient, the thermal expansion coefficient and the thermo-optic coefficient of the third fiber grating; The battery monitoring strategy is adjusted according to the deformation data of all detection positions, and the battery monitoring is performed based on the adjusted battery monitoring strategy, including: Acquire multiple historical temperature changes, multiple historical first deformations, and multiple historical third deformations of the target detection position, wherein the target detection position is a detection position to be analyzed currently, and the historical temperature change, the historical first deformation, and the historical third deformation are respectively the temperature change, the first deformation, and the third deformation obtained by multiple detections of the target detection position in the past preset time period; Determining a battery monitoring frequency according to a plurality of historical temperature change amounts, a plurality of historical first deformation amounts, and a plurality of historical third deformation amounts; Perform battery monitoring based on the battery monitoring frequency.

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