Double-battery charging and power supply type bracelet and double-battery charging and power supply control method

Abstract

The invention provides a double-battery charging and power supply type bracelet and a double-battery charging and power supply control method, and belongs to the technical field of bracelet power supply. Comprising a watch body, a watchband, a standby battery installed in the watch body, an MCU installed in the watch body and a main battery installed on the watchband, and the MCU is electrically connected with a second power supply port of the standby battery and a third power supply port of the main battery through a first power supply port. By adopting the double-battery design, when the MCU detects that the electric quantity of the main battery is lower than the charging threshold value through I / O, the bracelet switches the standby battery to supply power to the watch body, at the moment, a user is prompted to take out the main battery for charging, and after the main battery is installed in the watchband, the MCU detects that the electric quantity of the main battery is larger than the low-electric-quantity mode threshold value through I / O, power supply of the standby battery is cut off; and the standby battery reaching the charging threshold value is charged, so that the wristband does not need to be integrally taken down when being charged, and the problem that the health and safety of the user cannot be protected in real time when the wristband is taken down is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wristband power supply, and in particular relates to a dual-battery charging and power supply wristband and a dual-battery charging and power supply control method. Background Art

[0002] With the rapid expansion of the wearable device market, smart bracelets have become widely popular among consumers as a convenient tool for health monitoring and fitness tracking. However, traditional smart bracelets are powered by a single battery, and battery life has been a key factor restricting their development. Elderly people often forget to charge their bracelets, preventing them from using their functions properly. This negatively impacts the user experience. Furthermore, the bracelets need to be removed for charging, which can easily lead to loss or damage, and their health and safety cannot be protected after removal. Summary of the Invention

[0003] (1) Technical problems to be solved In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a dual-battery charging and power supply wristband and a dual-battery charging and power supply control method to solve the problem that the existing wristband is powered by a single battery. In daily life, the elderly often forget to charge and cannot use the various functions of the wristband normally, which affects the user experience to a certain extent. Moreover, the wristband needs to be removed as a whole for operation when charging, which not only easily leads to the loss or damage of the wristband, but also fails to protect the health and safety of the elderly after the wristband is removed.

[0004] (2) Technical solution In order to solve the above technical problems, the present invention provides a dual-battery rechargeable and powered wristband, comprising a watch body, a watch strap, a backup battery installed inside the watch body, an MCU installed inside the watch body, and a main battery installed on the watch strap. The MCU is electrically connected to a second power port of the backup battery and a third power port of the main battery via a first power port. A first switch is installed between the power input end of the watch body and the second power port of the backup battery, a reverse diode is installed between the power input end of the watch body and the third power port of the main battery, and a second switch is installed between the second power port of the backup battery and the third power port of the main battery. The control end of the MCU is electrically connected to the control ends of the first switch and the second switch via a control line, wherein the first switch is in a normally closed state, and the second switch is in a normally open state. The MCU detects the voltage of the backup battery and analyzes the remaining power through the first I / O port, detects the voltage of the main battery and analyzes the remaining power through the second I / O port, and controls the closing and opening of the first switch and the second switch.

[0005] Preferably, the power input terminal of the meter body is fixedly connected to a capacitor to ensure the stability of the power supply of the meter body, and the capacitor is grounded through a first wire.

[0006] Preferably, the backup battery and the main battery are grounded via second conducting wires respectively.

[0007] Preferably, a battery mounting bracket is fixedly connected to the middle of the watch strap, and the main battery is installed inside the battery mounting bracket.

[0008] Preferably, the capacity of the main battery is greater than that of the backup battery.

[0009] A dual-battery charging and power supply control method includes the dual-battery charging and power supply wristband described above, and the control method includes the following steps: Step 1: When the main battery is connected to the circuit, the MCU detects through the first I / O port that the voltage of the backup battery is greater than the charging threshold. When the MCU detects through the second I / O port that the power level of the main battery is higher than the preset charging threshold, the main battery is used to power the meter body, and the first switch is controlled to be disconnected, and the second switch is kept in the disconnected state to disconnect the power supply of the backup battery. Step 2: When the MCU detects that the power level of the main battery has reached the low power threshold, the bracelet prompts the user to charge in time; Step 3: When the main battery is powering the meter, the MCU detects through the second I / O port that the battery at the third power supply port of the main battery is disconnected or reaches a preset charging threshold. The MCU controls the first switch to close and switches to the backup battery to power the meter.

[0010] Preferably, in step 2, after the wristband prompts the user to charge in time, the wristband enters low power mode, and when the MCU detects that the power of the main battery is lower than the charging threshold, step 3 is performed.

[0011] Preferably, the low power mode threshold is when the screen-displayed power value is less than 20%, and the charging threshold is when the screen-displayed power value is less than 1%.

[0012] Preferably, step one also includes the following steps: S1. When the MCU detects that the power level of the main battery is higher than the low power mode threshold and the power level of the backup battery reaches the charging threshold, the MCU controls the second switch to close and the first switch to remain open, so that the main battery charges the backup battery. S2. When the MCU detects that the power level of the backup battery reaches a full charge threshold, the MCU controls the second switch to be disconnected, disconnecting the main battery from charging the backup battery.

[0013] Preferably, the charging threshold is unified as the screen-displayed power level is less than 1%, and the full charge threshold is 100% of the screen-displayed power level.

[0014] (3) Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: The above solution adopts a dual-battery design. When the main battery of the bracelet is low on power, the backup battery is switched to power the watch body. At this time, the user is prompted to remove the main battery for charging. When the main battery is installed in the watch strap, the MCU detects through I / O that the main battery power is higher than the low-power mode threshold, actively switches to the main battery for power supply, and at the same time disconnects the backup battery power supply, and charges the backup battery that reaches the charging threshold. In this way, the bracelet does not need to be removed as a whole when charging, achieving uninterrupted health monitoring during charging and protecting the health and safety of the elderly in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a dual-battery charging and power supply wristband.

[0016] Figure 2 Schematic diagram of the main battery removal structure of the dual-battery charging and powering bracelet.

[0017] Figure 3 This is a schematic diagram of the circuit connection structure of a dual-battery charging and powering wristband.

[0018] Figure 4 This is a diagram of the connection structure when switching between the main and backup batteries of a dual-battery charging and powering wristband.

[0019] Figure 5 Schematic diagram of the structure of a dual-battery rechargeable wristband using the main battery for power supply.

[0020] Figure 6 Schematic diagram of the structure of a dual-battery rechargeable wristband using a backup battery to power it.

[0021] Figure 7 Schematic diagram of the structure of the dual-battery charging powered bracelet's main battery charging the backup battery.

[0022] The markings in the accompanying drawings are: 1. Watch body; 2. Watch strap; 3. Backup battery; 31. Second power supply port; 4. MCU; 5. Main battery; 51. Third power supply port; 61. First I / O port; 62. Second I / O port; 7. First switch; 8. Reverse diode; 9. Second switch; 10. Capacitor; 11. First wire; 12. Second wire; 13. Battery mounting bracket; 14. First power supply port; 15. Electrical connector. DETAILED DESCRIPTION

[0023] An embodiment of the present invention provides a dual-battery rechargeable wristband, comprising a watch body 1, a watch strap 2, a backup battery 3 installed inside the watch body 1, an MCU 4 installed inside the watch body 1, and a main battery 5 installed on the watch strap. The MCU 4 is electrically connected to the second power port 31 of the backup battery 3 and the third power port 51 of the main battery 5 through a first power port 14. A first switch 7 is installed between the power input end of the watch body 1 and the second power port 31 of the backup battery 3, a reverse diode 8 is installed between the power input end of the watch body 1 and the third power port 51 of the main battery 5, and a second switch 9 is installed between the second power port 31 of the backup battery 3 and the third power port 51 of the main battery 5. The control end of the MCU 4 is electrically connected to the control ends of the first switch 7 and the second switch 9 through a control line, wherein the first switch 7 is in a normally closed state and the second switch 9 is in a normally open state. MCU4 detects the voltage of the backup battery 3 and analyzes the remaining power through the first I / O port 61. MCU4 detects the voltage of the main battery 5 and analyzes the remaining power through the second I / O port 62. MCU4 controls the closing and opening of the first switch 7 and the second switch 9. The first switch 7 and the second switch 9 can be small relays or other forms of switches.

[0024] like Figure 3 As shown, in this embodiment, the power input terminal of the meter body 1 is fixedly connected to a capacitor 10, the capacitor 10 is grounded through a first wire 11, and the backup battery 3 and the main battery 5 are grounded through second wires 12 respectively; the capacitor 10 plays a role in temporary power supply and buffering voltage mutations in the circuit, so that the circuit safety can be protected when switching between the backup battery 3 and the main battery 5 for power supply.

[0025] like Figure 1 and Figure 2 As shown, in this embodiment, a battery mounting bracket 13 is fixedly connected to the middle portion of the watch strap 2, the watch body 1 and the wire passing through the watch strap 2 are connected to the elastic thimble fixed to the battery mounting bracket 13, and the main battery 5 is buckled inside the battery mounting bracket 13. The main battery 5 is equipped with an electrical connector 15, which is stably connected to the elastic thimble under the action of the buckle, so as to charge and supply power to the watch body 1.

[0026] In this embodiment, the capacity of the main battery 5 is greater than that of the backup battery 3; in this way, the backup battery 3 can be charged by the main battery 5. It is only necessary to remove the main battery 5 for charging, and there is no need to remove the wristband body for charging, ensuring that the wristband can always be worn on the user's hand.

[0027] A dual-battery charging and power supply control method includes the dual-battery charging and power supply wristband described above, and the control method includes the following steps: Step 1: When the main battery 5 is connected to the circuit, the MCU 4 detects through the first I / O port 61 that the voltage of the backup battery 3 is greater than the charging threshold, and when the MCU 4 detects through the second I / O port 62 that the power level of the main battery 5 is higher than the preset charging threshold, the main battery 5 supplies power to the meter body 1, and at the same time controls the first switch 7 to be disconnected, disconnecting the power supply of the backup battery 3 (e.g. Figure 5 ); Step 2: When the MCU 4 detects that the power level of the main battery 5 has reached a low power threshold, the wristband prompts the user to charge the battery in time. Step 3: When the main battery 5 is supplying power to the watch body 1, the MCU 4 detects through the second I / O port 62 that the third power supply port 51 of the main battery 5 is disconnected or reaches a preset charging threshold, and the MCU 4 controls the first switch 7 to close, switching the backup battery 3 to supply power to the watch body 1. (As shown in the figure) Figure 4 shown).

[0028] In this embodiment, after the wristband prompts the user to charge in time in step 2, the watch body 1 enters the low power mode. When the MCU 4 detects that the power of the main battery 5 is lower than the charging threshold, step 3 is performed.

[0029] In this embodiment, the low power mode threshold is when the displayed power level is less than 20%, and the charging threshold is when the displayed power level is less than 1%.

[0030] In this embodiment, step one also includes the following steps: S1. When the MCU4 detects that the power level of the main battery 5 is higher than the low power mode threshold, and the MCU4 detects that the power level of the backup battery 3 reaches the charging threshold, the MCU4 controls the second switch 9 to close and controls the first switch 7 to remain open, and the main battery 5 charges the backup battery 3 (e.g. Figure 7 ); S2. When the MCU 4 detects that the power level of the backup battery 3 reaches a full charge threshold, the MCU 4 controls the second switch 9 to be disconnected, thereby disconnecting the main battery 5 from charging the backup battery 3 .

[0031] In this embodiment, the charging threshold is uniformly set at less than 1% of the displayed power, and the full charge threshold is 100% of the displayed power. In this way, after the main battery 5 is charged into the bracelet for battery replacement, if the remaining power of the backup battery 3 is higher than the charging threshold, there is no need to charge the backup battery, thereby increasing the service life of the backup battery.

[0032] The technical solutions provided by the present invention are as follows: The wristband adopts a dual-battery design. When the main battery 5 is removed for charging, the backup battery 3 works to power the watch body 1. When it is detected that the main battery 5 is installed in the watch strap, the MCU4 detects through the second I / O port 62 that the power of the main battery 5 is higher than the low-power mode threshold, and at the same time controls the first switch 7 to disconnect, and the backup battery 3 is replaced by the main battery 5 for power supply. Then, the MCU4 detects the power of the backup battery 3 through the first I / O port 61. If the power of the backup battery 3 is lower than the charging threshold, the MCU4 controls the second switch 9 to close, and the main battery 5 charges the backup battery 3. When the MCU4 detects through the first I / O port 61 that the power of the backup battery 3 is charged to the full power threshold, the MCU4 controls the second switch 9 to disconnect, disconnecting the main battery 5. Charge the backup battery 3; when the MCU4 detects through the second I / O port 62 that the power of the main battery 5 reaches the low power mode threshold, the bracelet prompts the user to charge in time, and the watch body 1 enters the low power mode at the same time; when the MCU4 detects through the second I / O port 62 that the power of the main battery 5 reaches the charging threshold, the MCU4 controls the first switch 7 to close, switching the backup battery 3 to power the watch body 1. At this time, the user can take out the main battery 5 for charging. When the main battery 5 is installed in the watch strap, the main battery 5 can be switched to power the watch body 1, and at the same time, the backup battery 3 whose power reaches the charging threshold is charged, so that the bracelet does not need to be removed as a whole when charging, avoiding loss or damage of the bracelet, and protecting the user's health and safety in real time.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A dual-battery rechargeable wristband, characterized in that: The watch comprises a watch body (1), a watch strap (2), a backup battery (3) installed inside the watch body (1), an MCU (4) installed inside the watch body (1), and a main battery (5) installed on the watch strap, wherein the MCU (4) is electrically connected to the second power supply port (31) of the backup battery (3) and the third power supply port (51) of the main battery (5) through a first power supply port (14), a first switch (7) is installed between the power input end of the watch body (1) and the second power supply port (31) of the backup battery (3), a reverse diode (8) is installed between the power input end of the watch body (1) and the third power supply port (51) of the main battery (5), a second switch (9) is installed between the second power supply port (31) of the backup battery (3) and the third power supply port (51) of the main battery (5), a control end of the MCU (4) is electrically connected to the control end of the first switch (7) and the control end of the second switch (9) through a control line, wherein the first switch (7) is in a normally closed state and the second switch (9) is in a normally open state; The MCU (4) detects the voltage of the backup battery (3) and analyzes the remaining power through the first I / O port (61), detects the voltage of the main battery (5) and analyzes the remaining power through the second I / O port (62), and controls the closing and opening of the first switch (7) and the second switch (9).

2. The dual-battery rechargeable wristband according to claim 1, characterized in that: A capacitor (10) is fixedly connected to the power input end of the meter body (1) to ensure stable power supply to the meter body 1. The capacitor (10) is grounded via a first wire (11).

3. The dual-battery rechargeable power supply wristband according to claim 2, wherein the backup battery (3) and the main battery (5) are grounded via a second wire (12) respectively.

4. The dual-battery rechargeable wristband according to claim 3, characterized in that: A battery mounting frame (13) is fixedly connected to the middle of the watch strap (2), and the main battery (5) is mounted inside the battery mounting frame (13).

5. The dual-battery rechargeable wristband according to claim 4, characterized in that: The capacity of the main battery (5) is greater than that of the backup battery (3).

6. A dual-battery charging and power supply control method, comprising the dual-battery charging and power supply wristband according to any one of claims 1 to 5, characterized in that: The control method comprises the following steps: Step 1: When the main battery (5) is connected to the circuit, the MCU (4) detects through the first I / O port (61) that the voltage of the backup battery (3) is greater than the charging threshold, and when the MCU (4) detects through the second I / O port (62) that the power level of the main battery (5) is higher than the preset charging threshold, the meter body (1) is powered by the main battery (5), and the first switch (7) is controlled to be disconnected, and the second switch (9) is kept in the disconnected state, thereby disconnecting the power supply of the backup battery (3); Step 2: When the MCU (4) detects that the power level of the main battery (5) reaches a low power threshold, the wristband prompts the user to charge the battery in time; Step 3: When the main battery (5) supplies power to the meter body (1), the MCU (4) detects through the second I / O port (62) that the battery at the third power supply port (51) of the main battery (5) is disconnected or reaches a preset charging threshold, and the MCU (4) controls the first switch (7) to close, switching the backup battery (3) to supply power to the meter body (1).

7. The dual-battery charging and power supply control method according to claim 6, characterized in that: After the wristband prompts the user to charge in time in step 2, the watch body (1) enters a low power mode. When the MCU (4) detects that the power level of the main battery (5) is lower than the charging threshold, step 3 is performed.

8. The dual-battery charging and power supply control method according to claim 7, characterized in that: The low power mode threshold is when the screen-displayed power level is less than 20%, and the charging threshold is when the screen-displayed power level is no more than 1%.

9. The dual-battery charging and power supply control method according to claim 6, characterized in that: The step 1 also includes the following steps: S1. When the MCU (4) detects that the power level of the main battery (5) is higher than the low power mode threshold, and the MCU (4) detects that the power level of the backup battery (3) reaches the charging threshold, the MCU (4) controls the second switch (9) to close, and controls the first switch (7) to remain in an open state, so that the main battery (5) charges the backup battery (3); S2. When the MCU (4) detects that the power level of the backup battery (3) reaches a full charge threshold, the MCU (4) controls the second switch (9) to disconnect, thereby disconnecting the main battery (5) from charging the backup battery (3).

10. The dual-battery charging and power supply control method according to claim 9, characterized in that: The charging threshold is uniformly set at less than 1% of the displayed power level, and the full charge threshold is 100% of the displayed power level.

Images