Battery box electric quantity indicating system

Abstract

According to the battery box electric quantity indicating system, the processing module is used for controlling the output voltage of the voltage output module based on the residual electric quantity of the first battery module in the battery box, and the Bluetooth module at the wearable equipment side is used for detecting the output voltage; therefore, the Bluetooth module can determine the remaining power of the first battery module based on the output voltage, the remaining power is obtained on the basis of not arranging a communication circuit, the size of the wearable device can be effectively reduced on the basis of ensuring the obtaining of the remaining power, the wearable device is convenient for a user to wear, and the use experience of the user to wear is improved.

Description

Technical Field

[0001] The utility model relates to the field of wearable devices, in particular to a battery box power indication system. Background Art

[0002] Currently, wearable devices mainly read the power of the battery box by establishing communication with the battery box. The communication method is mainly power line carrier communication, or power line and communication line time-sharing multiplexing communication. The communication method on the market requires adding specific communication circuits in the wearable device and the battery box to read the battery box circuit, which increases the cost and expands the PCB layout area, resulting in an increase in the size of the wearable device and the charging box, affecting the user's wearing experience. Utility Model Content

[0003] The main purpose of the utility model is to provide a battery box power indicator system, which aims to solve the problem that the communication circuit in the prior art causes the size of the wearable device to increase, affecting the user's wearing experience.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a battery box power indication system.

[0005] The battery box power indication system includes a charging box and a wearable device;

[0006] The charging box includes a first battery module, a processing module and a voltage output module. The detection end of the processing module is connected to the first battery module, the output end of the first battery module is connected to the input end of the voltage output module, the output end of the processing module is connected to the control end of the voltage output module, and the output end of the voltage output module serves as the power supply end of the charging box;

[0007] The wearable device includes a second battery module and a Bluetooth module; the input end of the second battery module and the detection end of the Bluetooth module are respectively connected to the power supply end of the charging box, and the power supply end of the Bluetooth module is connected to the output end of the second battery module;

[0008] in:

[0009] The processing module is used to obtain the remaining power of the first battery module and control the voltage output by the voltage output module according to the remaining power;

[0010] The second battery module is used to charge the Bluetooth module through the voltage output by the first battery module;

[0011] The Bluetooth module is used to obtain the voltage signal output by the first battery module and determine the remaining power according to the voltage signal.

[0012] Optionally, the Bluetooth module includes a first resistor and a second resistor, wherein:

[0013] The first end of the first resistor serves as a detection end of the Bluetooth module, the second end of the first resistor is grounded through the second resistor, and the second end of the first resistor also serves as an output of the Bluetooth module.

[0014] Optionally, the processing module includes a first storage unit, in which electric quantity-voltage association data is stored, wherein the electric quantity-voltage association data indicates an association relationship between the electric quantity of the first battery module and the output voltage of the voltage output module;

[0015] The Bluetooth module includes a second storage unit, in which the power-voltage correlation data is stored.

[0016] Optionally, the first battery module includes a first battery and a first charging and discharging unit, wherein:

[0017] The first battery is respectively connected to the battery end of the first charge and discharge unit and the detection end of the processing module, the first charge and discharge unit is communicatively connected to the processing module, the output end of the first charge and discharge unit serves as the output end of the first battery module, and the output end of the first charge and discharge unit is also connected to the power supply end of the processing module.

[0018] Optionally, the voltage output module is a boost circuit.

[0019] Optionally, the second battery module includes a second battery and a second charging and discharging unit, wherein:

[0020] The second battery is connected to the battery end of the second charge and discharge unit, the input end of the second charge and discharge unit serves as the input end of the second battery module, the output end of the second charge and discharge unit serves as the output end of the second battery module, and the second charge and discharge unit is also connected to the Bluetooth module for communication.

[0021] Optionally, the battery box further comprises an insertion detection module; the output end of the insertion detection module is connected to the insertion detection end of the processing module; wherein:

[0022] The insertion detection module is used to detect the insertion state of the wearable device, obtain a insertion detection signal, and send the insertion detection signal to the processing module.

[0023] Optionally, the insertion detection module is a Hall sensor.

[0024] Optionally, the battery box further includes a first indication module, and a control end of the first indication module is communicatively connected to the processing module.

[0025] Optionally, the wearable device further includes a second indication module, and a control end of the second indication module is communicatively connected to the Bluetooth module.

[0026] The utility model proposes a battery box power indication system, which controls the output voltage of a voltage output module based on the remaining power of a first battery module in the battery box through a processing module, and at the same time, detects the output voltage through a Bluetooth module on the wearable device side, so that the Bluetooth module can determine the remaining power of the first battery module based on the output voltage. The remaining power is obtained without setting a communication circuit, and the volume of the wearable device and the charging box can be reduced while ensuring the acquisition of the remaining power. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 This is a functional module diagram of an embodiment of a battery box power indicator system of the utility model;

[0029] Figure 2 This is a module structure diagram of an embodiment of a battery box power indicator system of the utility model;

[0030] Figure 3 This is a flow chart of the first embodiment of the charging box power indication method of the utility model;

[0031] Figure 4 This is the overall flow chart of the charging box power indication method of the utility model;

[0032] Description of Figure Numbers:

[0033] Label name Label name 100 Charging case 200 Wearable devices 110 First battery module 210 Second battery module 111 First Battery 220 Bluetooth module 112 First charge and discharge unit R1 First resistor 120 Processing Module R2 Second resistor 130 Voltage output module DETAILED DESCRIPTION

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] The utility model provides a battery box power indication system, see Figure 1 , Figure 1 This is a functional module diagram of an embodiment of the battery box power indicator system of the utility model. In this embodiment, the battery box power indicator system includes a charging box 100 and a wearable device 200; the charging box 100 includes a first battery module 110, a processing module 120 and a voltage output module 130, the detection end of the processing module 120 is connected to the first battery module 110, the output end of the first battery module 110 is connected to the input end of the voltage output module 130, the output end of the processing module 120 is connected to the control end of the voltage output module 130, and the output end of the voltage output module 130 serves as the power supply end of the charging box 100;

[0039] The wearable device 200 includes a second battery module 210 and a Bluetooth module 220; the input end of the second battery module 210 and the detection end of the Bluetooth module 220 are respectively connected to the power supply end of the charging box 100, the detection end of the Bluetooth module 220 is connected to the power supply end of the charging box 100, and the power supply end of the Bluetooth module 220 is connected to the output end of the second battery module 210; wherein:

[0040] The processing module 120 is used to obtain the remaining power of the first battery module 110 and control the voltage output by the voltage output module 130 according to the remaining power;

[0041] The second battery module 210 is used to charge the battery through the voltage output by the first battery module 110 and to supply power to the Bluetooth module 220;

[0042] The Bluetooth module 220 is used to obtain the voltage signal output by the first battery module and determine the remaining power according to the voltage signal.

[0043] The specific types of wearable devices 200 include, but are not limited to, earphones, smart bracelets, and smart rings. The charging box 100 is used to charge the wearable device 200; it is understandable that the specific shape and structure of the charging box 100 can be set based on actual application needs, and the charging box 100 is not necessarily in the shape of a "box". The necessary features of the charging box 100 include the ability to store electrical energy and charge the wearable device 200.

[0044] The first battery module 110 is used to store electrical energy and to supply power to the processing module 120 . The first battery module 110 outputs voltage to the voltage output module 130 . The voltage output module 130 converts the voltage of the first battery module 110 to obtain an output voltage, and the output voltage is output to the wearable device 200 .

[0045] The second battery module 210 is used to store electrical energy to power the Bluetooth module 220; the second battery module 210 receives the output voltage of the voltage output module 130 and is charged by the output voltage; the Bluetooth module 220 detects the output voltage to obtain a voltage signal, and the Bluetooth module 220 determines the voltage value of the output voltage based on the voltage signal, and determines the remaining power of the first battery module 110 based on the voltage value of the output voltage.

[0046] Generally, the charging box 100 and the wearable device 200 are connected through two contacts, one is the power contact VBUS, and the other is the ground contact GND; in the prior art, a communication circuit is set in the charging box 100, and the communication circuit and the voltage output module 130 operate in duplex mode. The voltage output module 130 outputs the charging voltage through VBUS, and the communication circuit outputs the remaining power information of the charging box 100 through VBUS.

[0047] In this embodiment, the communication circuit in the charging box 100 is cancelled, and the wearable device 200 is charged through the voltage output module 130. At the same time, when the remaining power needs to be sent to the wearable device 200, the processing module 120 controls the output voltage of the voltage output module 130 based on the remaining power, so that different output voltages can be received at the wearable device 200 end. Then, the Bluetooth module 220 determines the remaining power of the first battery module 110 in the charging box 100 based on the output voltage. Without setting up a communication circuit, the transmission of the remaining power between the charging box 100 and the wearable device 200 is realized.

[0048] After determining the remaining power, the Bluetooth module 220 can send the remaining power to the connected terminal, so that the user can know the remaining power of the charging box 100 on the terminal; the specific type of the Bluetooth module 220 can be set based on actual needs. For example, the Bluetooth module 220 in this embodiment is a Bluetooth chip, and the detection end of the Bluetooth module 220 is the ADC pin of the Bluetooth chip.

[0049] In this embodiment, the processing module 120 is used to control the output voltage of the voltage output module 130 based on the remaining power of the first battery module 110 in the charging box 100. At the same time, the output voltage is detected by the Bluetooth module 220 on the wearable device 200 side, so that the Bluetooth module 220 can determine the remaining power of the first battery module 110 based on the output voltage. The remaining power can be obtained without setting up a communication circuit. On the basis of ensuring the acquisition of the remaining power, the volume of the wearable device 200 and the charging box 100 can be reduced.

[0050] Further, see also Figure 2 , the wearable device includes a first resistor R1 and a second resistor R2, wherein:

[0051] The first end of the first resistor R1 serves as a detection end of the Bluetooth module 220 , the second end of the first resistor R1 is grounded through the second resistor R2 , and the second end of the first resistor R1 also serves as an output of the Bluetooth module 220 .

[0052] The Bluetooth module 220 in this embodiment is implemented by setting a voltage-dividing resistor. The first resistor R1 and the second resistor R2 divide the output voltage and output it to the detection end of the Bluetooth module 220. The Bluetooth module 220 determines the magnitude of the output voltage based on the preset ratio of the first resistor R1 and the second resistor R2 and the voltage value received by the detection end. This embodiment detects the output voltage by using a voltage-dividing resistor, so that the number of components can be reduced as much as possible, avoiding increasing the volume of the wearable device 200.

[0053] Further, the processing module 120 includes a first storage unit, in which the power-voltage association data is stored, wherein the power-voltage association data indicates the association relationship between the power of the first battery module 110 and the output voltage of the voltage output module 130;

[0054] The Bluetooth module 220 includes a second storage unit, in which the power-voltage correlation data is stored.

[0055] The first storage unit may be a storage device built into the processing module 120, or may be an additional storage device;

[0056] The second storage unit may be a storage device built into the Bluetooth module 220 or an additional storage device.

[0057] In this embodiment, the same power-voltage association data is pre-stored in the processing module 120 and the Bluetooth module 220; the power-voltage association data indicates the association between the output voltage and the remaining power; the processing module 120 determines the output voltage based on the remaining power of the first battery module 110 and the power-voltage association data, and the Bluetooth module 220 determines the remaining power of the first battery module 110 through the detected output voltage and the power-voltage association data.

[0058] The specific setting of the power-voltage related data can be considered based on actual needs; for example, the remaining power can be set in the form of a percentage, 0% for no power, 100% for full power, and the remaining power can be represented by setting multiple power percentage points between 0% and 100%; it can be understood that, limited by the collection accuracy of the remaining power, the change accuracy and change range of the voltage output module 130, etc., the number of power percentage points needs to be set based on actual conditions, such as setting a power percentage point every 10%.

[0059] At the same time, the specific voltage value of the output voltage corresponding to the power percentage point also needs to be set based on the actual situation; generally, when the power is normally supplied, the preset target voltage of 5V is output to supply power to the wearable device 200; in this embodiment, the voltage output module 130 adopts a Boost boost circuit. At this time, in order to avoid confusion between the voltage indicating the remaining power and the voltage of the normal power supply, the voltage indicating the remaining power is set between 5.2V-6.2V. At this time, the voltage of all remaining power is greater than the voltage of the normal power supply; as mentioned above, a power percentage point is set every 10% interval, and the corresponding output voltage is set every 0.1V interval. The power voltage correlation data is as follows:

[0060]

[0061] The above is only an explanation of one case. In actual applications, the power and voltage correlation data can be set based on actual needs.

[0062] Furthermore, the first battery module 110 includes a first battery 111 and a first charging and discharging unit 112, wherein:

[0063] The first battery 111 is respectively connected to the battery end of the first charge and discharge unit 112 and the detection end of the processing module 120, the first charge and discharge unit 112 is communicatively connected to the processing module 120, the output end of the first charge and discharge unit 112 serves as the output end of the first battery module 110, and the output end of the first charge and discharge unit 112 is also connected to the power supply end of the processing module 120.

[0064] The first battery 111 is used to store electricity; the first charge and discharge unit 112 is used to charge or discharge the first battery 111 .

[0065] The first charging and discharging unit 112 may specifically include a first charging chip and a charging interface; the charging end of the first charging chip is connected to the charging interface, the battery end of the first charging chip is connected to the first battery 111, the output end of the first charging chip is respectively connected to the processing module 120 and the voltage output module 130, and the first charging chip is also communicatively connected to the processing module 120; the specific type of the charging interface can be selected based on actual needs, including but not limited to TYPE-A, TYPE-C, and lightning.

[0066] When there is voltage input to the charging interface, the first charging chip charges the first battery 111 through the input voltage; when there is no voltage input to the charging interface, the first charging chip supplies power to the processing module 120 and the voltage output module 130 through the first battery 111.

[0067] The processing module 120 collects the voltage of the first battery 111 through the detection end. It can be understood that the more the remaining power of the first battery 111 is, the greater the voltage collected by the processing module 120 is, and the less the remaining power of the first battery 111 is, the smaller the voltage collected by the processing module 120 is. Therefore, the processing module 120 can determine the remaining power of the first battery 111 through the voltage collected by the detection end.

[0068] Furthermore, the second battery module 210 includes a second battery and a second charging and discharging unit, wherein:

[0069] The second battery is connected to the battery end of the second charge and discharge unit, the input end of the second charge and discharge unit serves as the input end of the second battery module 210, the output end of the second charge and discharge unit serves as the output end of the second battery module 210, and the second charge and discharge unit is also connected to the Bluetooth module 220 for communication.

[0070] The second battery is used to store electricity; the second charging and discharging unit is used to charge or discharge the second battery; the second charging and discharging unit can specifically be a second charging chip.

[0071] When receiving the output voltage of the voltage output module 130 , the second charging chip charges the second battery through the output voltage; when there is no output voltage input, the second charging chip powers the Bluetooth module 220 through the second battery.

[0072] Furthermore, the charging box 100 further includes an insertion detection module; the output end of the insertion detection module is connected to the insertion detection end of the processing module 120; wherein:

[0073] The insertion detection module is used to detect the insertion state of the wearable device 200, obtain a insertion detection signal, and send the insertion detection signal to the processing module 120.

[0074] It can be understood that since the communication circuit setting is cancelled in this embodiment, it is necessary to set up a suitable method to trigger the indication of the remaining power; in this embodiment, an insertion detection module is set to detect the insertion status of the wearable device 200, and trigger the indication of the remaining power when the wearable device 200 is inserted; specifically, after receiving the insertion detection signal, the processing module 120 determines the remaining power of the first battery 111, and controls the output voltage based on the remaining power so that the wearable device 200 can determine the remaining power; at the same time, in order to ensure normal power supply, after the insertion detection signal indicates that the insertion time reaches the preset feedback time, the control voltage output module 130 outputs the preset target voltage to restore normal power supply.

[0075] The insertion detection module in this embodiment is a Hall sensor; the specific configuration of the Hall sensor can be performed based on actual needs.

[0076] Other methods may also be provided to trigger the indication of the remaining power, such as providing a cover opening detection sensor to trigger the indication of the remaining power when detecting that the charging box 100 has its cover opened; or providing a trigger button on the charging box 100, and when the trigger button is pressed, the processing module 120 executes the indication of the remaining power.

[0077] Furthermore, the charging box 100 also includes a first indication module, and a control end of the first indication module is communicatively connected to the processing module 120 .

[0078] In addition to sending the remaining power to the terminal through the Bluetooth module 220, a first indication module can also be set on the charging box 100 to indicate the remaining power. The user can directly understand the remaining power from the charging box 100 through the first indication module.

[0079] The specific form of the first indication module can be set based on actual needs, including but not limited to sound, light, and electricity; if the first indication module in the present embodiment is an LED, the processing module 120 sends an indication signal corresponding to the remaining power to control the LED to light up after determining the remaining power. Specifically, the light color, number of flashes, or flash frequency of the LED can be controlled based on different remaining power levels; for example, when the remaining power is low, the LED displays red, the number of flashes is small, or the flash frequency is fast; when the remaining power is high, the LED displays green, the number of flashes is large, and the flash frequency is slow.

[0080] Furthermore, the wearable device 200 also includes a second indication module, and a control end of the second indication module is communicatively connected to the Bluetooth module 220 .

[0081] Similarly, the wearable device 200 may also be provided with a second indication module to indicate the power level of the second battery; the second indication module may be provided in an analogous manner to the first indication module, and will not be described in detail herein.

[0082] When applying the battery box power indication system, you can set the charging box power indication method specifically. Specifically, refer to Figure 3 , Figure 3 This is a flow chart of the first embodiment of the charging box power indication method of the utility model. The charging box power indication method is applied to the battery box power indication system as described above and to the processing module. The method includes the following steps:

[0083] Step S110, obtaining the remaining power of the first battery, and determining an output voltage corresponding to the remaining power;

[0084] Step S120, sending a control signal corresponding to the output voltage to a voltage output module, so that the voltage output module outputs the output voltage;

[0085] There is a preset correlation between the remaining power and the output voltage, and the corresponding output voltage can be determined after the remaining power of the first battery is determined.

[0086] The control signal indicates the value of the voltage that the voltage output module needs to output; the voltage output module in this embodiment is a Boost circuit, and the processing module communicates with the voltage output module through the I2C bus, so that the processing module controls the Boost circuit to output different voltage values, and each voltage value represents a different amount of electricity.

[0087] Applied to a Bluetooth module, the method comprises the steps of:

[0088] Step S210, monitoring the voltage signal detected by the Bluetooth module and determining the remaining power corresponding to the voltage signal

[0089] Step S220: sending the power information including the remaining power to the terminal.

[0090] Since there is a correlation between the output voltage of the charging box and the remaining power, the output voltage is detected through the Bluetooth module to obtain a voltage signal, and the remaining power of the charging box can be determined based on the voltage signal.

[0091] After determining the remaining power of the charging box, the wearable device can send the remaining power to the connected terminal, so that the user can know the remaining power of the charging box on the terminal.

[0092] This embodiment uses a processing module to control the output voltage of the voltage output module based on the remaining power of the first battery module in the charging box. At the same time, the output voltage is detected by the Bluetooth module on the wearable device side, so that the Bluetooth module can determine the remaining power of the first battery module based on the output voltage. The remaining power can be obtained without setting up a communication circuit. On the basis of ensuring the acquisition of the remaining power, the volume of the wearable device and the charging box can be reduced.

[0093] Further, see also Figure 4 In the second embodiment of the charging box power indication method of the utility model proposed based on the first embodiment of the utility model, step S110 includes the steps of:

[0094] Step S111, monitoring the insertion detection signal sent by the insertion detection module;

[0095] Step S112, if the insertion detection signal changes from indicating no insertion to indicating insertion, obtaining the remaining power of the first battery and determining the output voltage corresponding to the remaining power;

[0096] After step S120, the following steps are included:

[0097] Step S130, after the insertion detection signal indicates that the insertion duration reaches a preset feedback duration, obtaining a preset target voltage;

[0098] Step S140 , sending a control signal corresponding to the preset target voltage to a voltage output module, so that the voltage output module outputs the preset target voltage.

[0099] It can be understood that since the setting of the communication circuit is cancelled in this embodiment, it is necessary to set up a suitable method to trigger the indication of the remaining power; in this embodiment, an insertion detection module is set to detect the insertion status of the wearable device, and when the wearable device is inserted, that is, when the insertion detection signal changes from indicating that it is not inserted to indicating that it is inserted, the indication of the remaining power is triggered; specifically, after receiving the insertion detection signal, the processing module determines the remaining power of the first battery, and controls the output voltage based on the remaining power so that the wearable device can determine the remaining power; at the same time, in order to ensure normal power supply, after the insertion detection signal indicates that the insertion time reaches the preset feedback time, the voltage output module is controlled to output the preset target voltage to restore normal power supply; the specific value of the preset feedback time can be set based on the actual circuit situation and needs.

[0100] It is understandable that in actual applications, the processing module needs a certain amount of time to determine the remaining power and the output voltage corresponding to the remaining power. Therefore, a preset waiting time can be set. After detecting that the wearable device is inserted, the processing module determines the remaining power of the first battery and determines the corresponding output voltage. After the wearable device is inserted for a preset waiting time, the voltage output module is controlled to output the corresponding voltage. The specific value of the preset waiting time can be set based on actual needs.

[0101] This embodiment can retain the triggering method for indicating the remaining power without setting a communication circuit. At the same time, by setting a preset feedback duration, it can avoid affecting the normal charging of the wearable device.

[0102] Further, in the third embodiment of the charging box power indication method of the utility model proposed based on the first embodiment of the utility model, the step S210 includes the steps of:

[0103] Step S211, monitoring the voltage signal detected by the Bluetooth module;

[0104] Step S212: if the output voltage indicated by the voltage signal is greater than a preset target voltage, determining the remaining power corresponding to the voltage signal.

[0105] The preset target voltage is the output voltage of the voltage output module when the wearable device is normally charged. Generally, the preset target voltage is 5 V. As can be seen from the above description of the battery box power indication system, in this embodiment, the output voltage for indicating the remaining power is greater than the preset target voltage. Therefore, the Bluetooth module can determine whether the output voltage of the charging box is a normal charging voltage or for indicating the remaining power according to the size of the output voltage.

[0106] If the output voltage indicated by the voltage signal is less than or equal to the preset target voltage, the current output voltage is considered to be the normal power supply voltage and normal power supply is maintained; if the output voltage indicated by the voltage signal is greater than the preset target voltage, the current output voltage is considered to indicate the remaining power and the remaining power of the charging box is determined based on the voltage signal.

[0107] Furthermore, the step S212 includes the steps of:

[0108] Step S2121, if the output voltage indicated by the voltage signal is greater than a preset target voltage, sending a stop signal to the second battery module to stop charging the first battery module;

[0109] Step S2122, determining the remaining power corresponding to the voltage signal;

[0110] Step S2123, sending a charging signal to the second battery module to enable the second battery module to start charging.

[0111] It can be understood that the second battery module and the Bluetooth module are both connected to the output end of the voltage output module. Therefore, when the second battery module is charged through the output voltage, the charging current will affect the detection result of the Bluetooth module, which may cause the problem of voltage detection error. Therefore, in this embodiment, in order to avoid this problem and ensure the accuracy of output voltage detection, after detecting that the output voltage indicated by the voltage signal is greater than the preset target voltage, the second battery module is first controlled to stop charging, and then the remaining power is determined based on the detected voltage signal, thereby ensuring the accuracy of the remaining power detection; after the remaining power is determined, the second battery module is controlled to resume charging.

[0112] Furthermore, the step S2122 includes the steps of:

[0113] Step S21221, obtaining power-voltage correlation data, wherein the power-voltage correlation data includes correlation relationships between multiple voltage intervals and power percentages;

[0114] Step S21222, determining a matching voltage interval corresponding to the voltage signal in the electrical quantity voltage association data;

[0115] Step S21223: taking the power percentage corresponding to the matching voltage interval as the remaining power.

[0116] In this embodiment, the same power-voltage association data is pre-stored in the processing module and the Bluetooth module; the power-voltage association data indicates the association between the output voltage and the remaining power; the processing module determines the output voltage based on the remaining power of the first battery module and the power-voltage association data, and the Bluetooth module determines the remaining power of the first battery module through the detected output voltage and the power-voltage association data.

[0117] The specific setting of the power-voltage related data can be considered based on actual needs; for example, the remaining power can be set in the form of a percentage, 0% for no power, 100% for full power, and the remaining power can be represented by setting multiple power percentage points between 0% and 100%; it can be understood that, limited by the collection accuracy of the remaining power, the change accuracy and change range of the voltage output module, etc., the number of power percentage points needs to be set based on actual conditions, such as setting a power percentage point every 10%.

[0118] At the same time, the specific voltage value of the output voltage corresponding to the power percentage point also needs to be set based on the actual situation; generally, when the power is normally supplied, a preset target voltage of 5V is output to supply power to the wearable device; in this embodiment, the voltage output module adopts a Boost boost circuit. At this time, in order to avoid confusion between the voltage indicating the remaining power and the voltage of the normal power supply, the voltage indicating the remaining power is set between 5.2V-6.2V. At this time, the voltage of all remaining power is greater than the voltage of the normal power supply; as mentioned above, a power percentage point is set every 10% interval, and the corresponding output voltage is set every 0.1V interval. The power voltage correlation data is as follows:

[0119]

[0120] The above is only an explanation of one case. In actual applications, the power and voltage correlation data can be set based on actual needs.

[0121] After receiving the voltage signal, the Bluetooth module can determine the output voltage according to the voltage signal, and then match the remaining power corresponding to the output voltage in the power voltage association data; taking the above table as an example, if the output voltage is in the voltage range [5.4V, 5.5V), the corresponding remaining power is 20%; if the output voltage is in the voltage range [5.5V, 5.6V), the corresponding remaining power is 30%, and so on.

[0122] This embodiment determines the correspondence between the output voltage and the remaining power by setting the power-voltage correlation data, thereby accurately determining the remaining power of the charging box through the output voltage.

[0123] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or system including the element. The serial numbers of the above-mentioned embodiments of the utility model are for description only and do not represent the advantages and disadvantages of the embodiments.

[0124] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery box power indication system, characterized in that: The battery box power indication system includes a charging box and a wearable device; The charging box includes a first battery module, a processing module and a voltage output module. The detection end of the processing module is connected to the first battery module, the output end of the first battery module is connected to the input end of the voltage output module, the output end of the processing module is connected to the control end of the voltage output module, and the output end of the voltage output module serves as the power supply end of the charging box; The wearable device includes a second battery module and a Bluetooth module; the input end of the second battery module and the detection end of the Bluetooth module are respectively connected to the power supply end of the charging box, and the power supply end of the Bluetooth module is connected to the output end of the second battery module; in: The processing module is used to obtain the remaining power of the first battery module and control the voltage output by the voltage output module according to the remaining power; The second battery module is used to charge the Bluetooth module through the voltage output by the first battery module; The Bluetooth module is used to obtain the voltage signal output by the first battery module and determine the remaining power according to the voltage signal.

2. The battery box power indication system according to claim 1, characterized in that: The wearable device Bluetooth module includes a first resistor and a second resistor, wherein: The first end of the first resistor serves as a detection end of the Bluetooth module, the second end of the first resistor is grounded through the second resistor, and the second end of the first resistor also serves as an output of the Bluetooth module.

3. The battery box power indication system according to claim 1, characterized in that: The processing module comprises a first storage unit, in which electric quantity-voltage association data is stored, wherein the electric quantity-voltage association data indicates an association relationship between the electric quantity of the first battery module and the output voltage of the voltage output module; The Bluetooth module includes a second storage unit, in which the power-voltage correlation data is stored.

4. The battery box power indicator system according to claim 1, characterized in that: The first battery module includes a first battery and a first charging and discharging unit, wherein: The first battery is respectively connected to the battery end of the first charge and discharge unit and the detection end of the processing module, the first charge and discharge unit is communicatively connected to the processing module, the output end of the first charge and discharge unit serves as the output end of the first battery module, and the output end of the first charge and discharge unit is also connected to the power supply end of the processing module.

5. The battery box power indicator system according to claim 1, characterized in that: The voltage output module is a boost circuit.

6. The battery box power indicator system according to claim 1, characterized in that: The second battery module includes a second battery and a second charging and discharging unit, wherein: The second battery is connected to the battery end of the second charge and discharge unit, the input end of the second charge and discharge unit serves as the input end of the second battery module, the output end of the second charge and discharge unit serves as the output end of the second battery module, and the second charge and discharge unit is also connected to the Bluetooth module for communication.

7. The battery box power indicator system according to claim 1, characterized in that: The battery box further comprises an insertion detection module; the output end of the insertion detection module is connected to the insertion detection end of the processing module; wherein: The insertion detection module is used to detect the insertion state of the wearable device, obtain a insertion detection signal, and send the insertion detection signal to the processing module.

8. The battery box power indicator system according to claim 7, characterized in that: The insertion detection module is a Hall sensor.

9. The battery box power indicator system according to claim 1, characterized in that: The battery box further comprises a first indication module, wherein a control end of the first indication module is communicatively connected with the processing module.

10. The battery box power indicator system according to claim 1, characterized in that: The wearable device also includes a second indication module, and a control end of the second indication module is communicatively connected to the Bluetooth module.

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