Power supply system and mobile intelligent agent

Abstract

The utility model relates to the technical field of intelligent agent charging and discharging, and discloses a power supply system and a mobile intelligent agent, which comprise a battery, an automatic charging protection unit, a manual charging protection unit, a discharging protection unit, a control unit and an infrared sensing unit, the output end of the automatic charging protection unit is connected with the output end of the manual charging protection unit, the charging end of the battery and the power supply end of the control unit; the input end of the manual charging protection unit inputs a second power supply voltage; the input end of the discharge protection unit is connected with the discharge end of the battery, and the output end of the discharge protection unit is connected with the power supply end of the control unit and outputs third power supply voltage; the input end of the infrared sensing unit inputs an external infrared signal, and the output end of the infrared sensing unit is connected with the input end of the control unit. According to the utility model, charging and discharging protection and infrared positioning functions are integrated, and the power supply reliability can be improved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent agent charging and discharging technology, specifically to a power supply system and a mobile intelligent agent. Background Technology

[0002] With the development of society, mobile intelligent agent technology has gradually matured and become industrialized. Currently, the automatic charging circuit, manual charging circuit, and environmental perception circuit inside mobile intelligent agents such as mobile robots and autonomous vehicles are implemented through different systems or pathways. This involves numerous components, complex wiring, and complex assembly, resulting in low board integration, large size, and dense circuits that pose safety hazards. Utility Model Content

[0003] In view of this, the present invention provides a power supply system and a mobile intelligent agent to solve the problem of low integration of existing mobile intelligent agent charging boards.

[0004] In a first aspect, this utility model provides a power supply system, comprising: a battery, an automatic charging protection unit, a manual charging protection unit, a discharge protection unit, a control unit, and an infrared sensing unit. The battery, automatic charging protection unit, manual charging protection unit, discharge protection unit, control unit, and infrared sensing unit are integrated on a circuit board, which has a first communication interface and a second communication interface. The input terminal of the automatic charging protection unit receives a first power supply voltage, and the output terminal of the automatic charging protection unit is connected to the output terminal of the manual charging protection unit, the charging terminal of the battery, and the power supply terminal of the control unit. The input terminal of the manual charging protection unit receives a second power supply voltage. The input terminal of the discharge protection unit is connected to the discharging terminal of the battery, and the output terminal of the discharge protection unit is connected to the power supply terminal of the control unit and outputs a third power supply voltage. The input terminal of the infrared sensing unit receives an external infrared signal, and the output terminal of the infrared sensing unit is connected to the input terminal of the control unit.

[0005] The power supply system provided by this utility model has both automatic and manual charging functions. The automatic charging protection unit, manual charging protection unit, and discharge protection unit can prevent overcurrent or overvoltage damage to connected equipment during charging and discharging, or prevent reverse current from damaging the battery, thus improving the reliability of the power supply system. The power supply system also integrates infrared sensing functionality. When applied to a mobile intelligent device, the device can automatically charge after adjusting its trajectory via infrared and docking with the charging pile. The power supply system provided by this utility model has multiple functions, significantly improving the integration of the charging board.

[0006] In one optional embodiment, the automatic charging protection unit includes a first transient suppression diode and a first reverse protection unit, and the manual charging protection unit includes a second transient suppression diode and a second reverse protection unit, wherein the first terminal of the first transient suppression diode is connected to the first terminal of the first reverse protection unit and receives a first supply voltage, and the second terminal of the first transient suppression diode is grounded; the second terminal of the first reverse protection unit is connected to the charging terminal of the battery; the first terminal of the second transient suppression diode is connected to the first terminal of the second reverse protection unit and receives a second supply voltage, and the second terminal of the second transient suppression diode is grounded; the second terminal of the second reverse protection unit is connected to the charging terminal of the battery.

[0007] In one optional embodiment, the discharge protection unit includes: a third transient suppression diode and a first fuse, wherein the first terminal of the third transient suppression diode is connected to the discharge terminal of the battery and the first terminal of the first fuse, and the second terminal of the third transient suppression diode is grounded; the second terminal of the first fuse outputs a third supply voltage.

[0008] The power supply system provided by this utility model has a transient suppression diode that can quickly respond to transient overvoltages and protect other electronic components in the power supply system; a fuse that can provide overload protection to prevent the system circuit from being damaged due to overload; and an anti-reverse unit to prevent current from flowing back into the power supply system and damaging external charging equipment.

[0009] In one optional embodiment, the infrared sensing unit includes at least one infrared sensing circuit, wherein an external infrared signal is input to the input terminal of each infrared sensing circuit, and the output terminal of each infrared sensing circuit is connected to the input terminal of the control unit.

[0010] In one optional embodiment, the infrared sensing circuit includes: an infrared receiving unit, a filtering unit, an infrared receiving indicator unit, a first current limiting unit, and a second current limiting unit. The first terminal of the infrared receiving unit receives an external infrared signal; the second terminal of the infrared receiving unit is connected to the first terminal of the filtering unit, the first terminal of the infrared receiving indicator unit, and the first terminal of the first current limiting unit; the third terminal of the infrared receiving unit is connected to the second terminal of the filtering unit, the second terminal of the infrared receiving indicator unit, and the first terminal of the second current limiting unit; the second terminal of the first current limiting unit is connected to an external power supply; and the second terminal of the second current limiting unit is connected to the input terminal of the control unit.

[0011] In one alternative embodiment, the power supply system further includes a second fuse, wherein a first end of the second fuse is connected to a second end of the first anti-reverse unit, and the second end of the second fuse is connected to a charging end of the battery.

[0012] In one optional embodiment, the power supply system further includes a voltage conversion circuit, wherein a first input terminal of the voltage conversion circuit is connected to the output terminal of the automatic charging protection unit, a second input terminal of the voltage conversion circuit is connected to the output terminal of the discharge protection unit, and the output terminal of the voltage conversion circuit is connected to the power supply terminal of the control unit.

[0013] In one optional embodiment, the voltage conversion circuit includes: a first DC-DC unit, a second DC-DC unit, and a voltage regulator unit, wherein the input terminal of the first DC-DC unit is connected to the output terminal of the automatic charging protection unit, and the output terminal of the first DC-DC unit is connected to the first terminal of the voltage regulator unit; the input terminal of the second DC-DC unit is connected to the output terminal of the discharge protection unit, and the output terminal of the second DC-DC unit is connected to the second terminal of the voltage regulator unit; and the third terminal of the voltage regulator unit is connected to the power supply terminal of the control unit.

[0014] The power supply system provided by this utility model provides power to the control unit through the first DC-DC unit when charging; and power to the control unit through the second DC-DC unit when discharging. The control unit has two power supply circuits, which improves the reliability of power supply.

[0015] In one alternative embodiment, the power supply system further includes a communication unit, wherein a first end of the communication unit is connected to a communication end of the control unit, and a second end of the communication unit is connected to a terminal.

[0016] The power supply system provided by this utility model can communicate with the terminal, making it convenient for operators to understand the charging and discharging status in a timely manner.

[0017] Secondly, this utility model provides a mobile intelligent agent, including the power supply system of the first aspect above or any corresponding embodiment thereof.

[0018] The mobile intelligent device provided by this utility model has both automatic and manual charging functions. The automatic charging protection unit, manual charging protection unit, and discharge protection unit can prevent damage to the mobile intelligent device from overcurrent or overvoltage during charging and discharging, or prevent backflow of current from damaging the battery, thus improving the reliability of the power supply system. The power supply system also integrates infrared sensing functionality, allowing the mobile intelligent device to automatically charge after docking with the charging station via infrared trajectory adjustment. The mobile intelligent device provided by this utility model possesses multiple functions, significantly improving the integration of the mobile charging pad. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a composition diagram of the power supply system according to an embodiment of the present utility model;

[0021] Figure 2 Here are the specific circuit diagrams of the automatic charging protection unit and the manual charging protection unit according to embodiments of this utility model;

[0022] Figure 3 This is a specific circuit diagram of the discharge protection unit according to an embodiment of the present utility model;

[0023] Figure 4 This is a detailed circuit diagram of the infrared sensing circuit according to an embodiment of the present utility model;

[0024] Figure 5 This is a diagram illustrating the composition of another power supply system according to an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the power supply system layout on the circuit board according to an embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] This embodiment provides a power supply system that can be applied to mobile intelligent entities, such as mobile robots and intelligent vehicles. Figure 1 As shown, it includes: an automatic charging protection unit 1, a manual charging protection unit 2, a discharge protection unit 3, a battery 4, an infrared sensing unit 5, and a control unit 6. Figure 1 In this system, the input terminal of the automatic charging protection unit 1 receives a first power supply voltage, and the output terminal of the automatic charging protection unit 1 is connected to the output terminal of the manual charging protection unit 2, the charging terminal of the battery 4, and the power supply terminal of the control unit 6; the input terminal of the manual charging protection unit 2 receives a second power supply voltage.

[0031] Specifically, Figure 1 In this system, the first power supply voltage can be provided by the charging pile, and the second power supply voltage can be provided by the charger. When the charging pile or charger is connected to the power supply system through the charging interface, the automatic charging protection unit 1 limits the overcurrent and overvoltage output of the charging pile and then supplies the first power supply voltage to the battery to achieve automatic battery charging. The manual charging protection unit 2 limits the overcurrent and overvoltage output of the charger and then supplies the second power supply voltage to the battery to achieve manual battery charging.

[0032] Figure 1 In this configuration, the input terminal of the discharge protection unit 3 is connected to the discharge terminal of the battery 4, and the output terminal of the discharge protection unit 3 is connected to the power supply terminal of the control unit 6 and outputs a third power supply voltage. Specifically, Figure 1 In the process, the output terminal of the discharge protection unit 3 is connected to each device in the mobile intelligent body. When the battery 4 discharges, the discharge protection unit 3 limits the overcurrent and overvoltage output of the battery and then outputs a third power supply voltage to power each device in the mobile intelligent body.

[0033] Optionally, Figure 1In the automatic charging protection unit 1, manual charging protection unit 2, and discharge protection unit 3, anti-reverse devices can be installed to prevent the current in the battery 4 from flowing back to the charging pile or charger, and to prevent the current of various devices in the mobile smart body from flowing back to the battery 4.

[0034] Optionally, the output of the discharge protection unit 3 can also be connected to a voltage conversion circuit, which can convert the third supply voltage into different levels of voltage to power different devices in the mobile smart body.

[0035] Optionally, Figure 1 During the charging process of battery 4, the first or second supply voltage also supplies power to control unit 6; during the discharging process of battery 4, the third supply voltage also supplies power to control unit 6. The power supply terminal of control unit 6 can be equipped with a voltage conversion circuit to convert different levels of supply voltage to a suitable voltage level.

[0036] Figure 1 In the process, the input terminal of the infrared sensing unit 5 receives an external infrared signal, and the output terminal of the infrared sensing unit 5 is connected to the input terminal of the control unit 6.

[0037] Specifically, Figure 1 In this system, when the mobile intelligent agent is automatically charging, it needs to automatically dock with the charging pile based on the infrared signal it receives. The power supply system can include multiple symmetrically arranged infrared sensing units 5. When the charging pile emits an infrared signal, because the infrared sensing units 5 in symmetrical positions receive the infrared signal at different times, the electrical signal input to the control unit 6 by each infrared sensing unit 5 has a relative time difference. This allows the control unit 6 to determine the positional difference of each infrared sensing unit 5 relative to the charging pile based on the received electrical signal time difference, and thus adjust the movement trajectory of the mobile intelligent agent. When the control unit 6 determines that the time difference between the symmetrically arranged infrared sensing units 5 approaches zero, it indicates that the mobile intelligent agent and the charging pile are basically aligned.

[0038] Optionally, the charging pile receiver can also receive infrared signals emitted by the infrared sensing unit 5. Those skilled in the art can design the power supply system using existing mobile device infrared docking technology according to actual needs.

[0039] Figure 1 In this circuit, the automatic charging protection unit 1, the manual charging protection unit 2, the discharge protection unit 3, the battery 4, the infrared sensing unit 5, and the control unit 6 are all integrated on the circuit board, which has a first communication interface 7 and a second communication interface 8.

[0040] Optionally, Figure 1In this system, an external host computer can connect to the control unit 6 via the first communication interface 7, and an external slave computer can connect to the control unit 6 via the second communication interface 8. The slave computer includes sensors supporting different protocols, such as anti-collision sensors, anti-drop sensors, infrared ranging sensors, ultrasonic radar, temperature sensors, humidity sensors, and sensitive gas concentration sensors. Optionally, Figure 1 In the middle, the control unit 6 has multiple sensor interfaces and communication interfaces. When there are factors that are not conducive to the continued movement of the mobile intelligent body, such as abnormal external environment or low battery power, the control unit 6 can control the motion control module in the mobile intelligent body through the communication interface according to the sensing signals sent by the sensors, so that the mobile intelligent body stops running and enters a protection state, such as stopping in place, until the factors threatening the safety of the mobile intelligent body are eliminated according to the sensing signals sent by the sensors, and then the mobile intelligent body is controlled to resume operation through the communication interface.

[0041] It should be noted that, Figure 1 In this embodiment, the control unit is a control chip found in existing mobile intelligent agents. It incorporates mature mobile intelligent agent control methods from the prior art. Those skilled in the art can program the control unit according to these mature control programs, combined with actual needs, connecting various sensors to the control unit and adjusting the mobile intelligent agent's trajectory, charging / discharging logic, or operational logic. This enables the mobile intelligent agent to possess environmental fusion perception capabilities while ensuring a safe and reliable charging / discharging process. Specifically, this embodiment only protects the structure of the mobile intelligent agent's power supply system; it does not protect the control logic within the control unit, the specific charging / discharging process of the mobile intelligent agent, the charging pile alignment control method, or the movement control method of the mobile intelligent agent.

[0042] The mobile intelligent agent power supply system provided in this embodiment has automatic charging and manual charging functions. The automatic charging protection unit, manual charging protection unit, and discharge protection unit can prevent overcurrent or overvoltage damage to the intelligent agent during charging and discharging, or prevent reverse current from damaging the battery, thus improving the reliability of the power supply system. The power supply system also integrates infrared sensing functionality, allowing the mobile intelligent agent to automatically charge after docking with the charging pile via infrared trajectory adjustment. The mobile intelligent agent power supply system provided by this utility model has multiple functions and can significantly improve the integration of the charging board.

[0043] In some alternative implementations, such as Figure 2 As shown, the automatic charging protection unit includes: a first transient suppression diode D5 and a first reverse protection unit D2. The first terminal of the first transient suppression diode D5 is connected to the first terminal of the first reverse protection unit D2, and the first power supply voltage AUTOCHARGE_DC_IN is input through the automatic charging interface J16. The second terminal of the first transient suppression diode D5 is grounded.

[0044] Optionally, Figure 2 In the design, the automatic charging interface J16 includes two electrodes, one negative and one positive, which are fixed to the power supply PCB board by screws. The first transient suppression diode D5 has a reverse cutoff voltage of 58V, a maximum clamping voltage of 93.6V, a peak pulse current of 3000W, and a breakdown voltage of 71.2V. The first anti-reverse unit D2 includes two diodes connected in parallel in the same direction, with a DC reverse withstand voltage of 100V and a rectified current of 30A.

[0045] Figure 2 The mobile intelligent body power supply system also includes: a second fuse F1, the first end of the second fuse F1 is connected to the second end of the first anti-reverse unit D2, and the second end of the second fuse F1 is connected to the charging end of the battery through the charging port J17.

[0046] Optionally, Figure 2 In the circuit, the second fuse F1 is a pluggable structure with a rated voltage of 500V and a rated current of 30A. The charging port J17 has a withstand voltage of DC500V, a rated current of 20A, a contact resistance of 0.60mΩ, and an instantaneous current of 40A.

[0047] Figure 2 The manual charging protection unit includes a second transient suppression diode D100 and a second reverse protection unit D7. The first terminal of the second transient suppression diode D100 is connected to the first terminal of the second reverse protection unit D7, and the second power supply voltage MANUAL_CHARGE_DC_IN_1 is input through the manual charging interface J10. The second terminal of the second transient suppression diode D100 is grounded. The second terminal of the second reverse protection unit D7 is connected to the first terminal of the second fuse F1.

[0048] Optionally, Figure 2 In the manual charging interface J10, the withstand voltage is DC500V, the rated current is 20A, the contact resistance is 0.60mΩ, and the instantaneous current is 40A. The parameters of the second transient suppression diode D100 are the same as those of the first transient suppression diode D5, and the parameters of the second anti-reverse unit D7 are the same as those of the first anti-reverse unit D2.

[0049] In some alternative implementations, such as Figure 3 As shown, the discharge protection unit includes a third transient suppression diode D28 and a first fuse F2. The first terminal of the third transient suppression diode D28 is connected to the discharge terminal of the battery and the first terminal of the first fuse F2 through the discharge interface J18, and the second terminal of the third transient suppression diode D28 is grounded. The second terminal of the first fuse F2 outputs a third power supply voltage through the discharge outlet J25.

[0050] Optionally, Figure 3In the process, the discharge interface J18 has a withstand voltage of DC 500V, a rated current of 20A, a contact resistance of 0.60mΩ, and a transient current of 40A. The parameters of the third transient suppression diode D28 are the same as those of the first transient suppression diode D5, the parameters of the first fuse F2 are the same as those of the second fuse F1, and the parameters of the discharge outlet J25 are the same as those of the charging inlet J17.

[0051] In some alternative implementations, such as Figure 4 As shown, the infrared sensing unit includes at least one infrared sensing circuit, and each infrared sensing circuit has the same circuit structure. Figure 4 Taking an infrared sensing circuit as an example, the input terminal (i.e., T9 terminal) of the infrared sensing circuit receives an external infrared signal, and the output terminal (i.e., the terminal that outputs IR_RECEIVE_1) of each infrared sensing circuit is connected to the input terminal of the control unit.

[0052] Optionally, Figure 4 In the process, the infrared sensing circuit includes: an infrared receiving unit T9, a filtering unit composed of a capacitor C1 and a resistor R1, an infrared receiving indicator unit composed of a light-emitting diode D1000 and a resistor R2, a first current limiting unit composed of resistors R3 and R4, and a second current limiting unit composed of resistors R5 and R6.

[0053] Figure 4 In the process, the first end of the infrared receiving unit receives external infrared signals from the charging pile; the second end of the infrared receiving unit is connected to the first end of the filtering unit, the first end of the infrared receiving indicator unit, and the first end of the first current limiting unit; the third end of the infrared receiving unit is connected to the second end of the filtering unit, the second end of the infrared receiving indicator unit, and the first end of the second current limiting unit; the second end of the first current limiting unit is connected to an external power supply; and the second end of the second current limiting unit is connected to the input end of the control unit.

[0054] Specifically, Figure 4 When the infrared receiving unit T9 receives an external infrared signal from the charging pile, the infrared receiving unit T9 immediately outputs an electrical signal, which, after filtering and current limiting, outputs a trigger signal IR_RECEIVE_1 to the control unit. At the same time, the light-emitting diode D1000 lights up, indicating that the infrared sensing circuit has started to work.

[0055] Specifically, Figure 4In this system, because each infrared sensor circuit is positioned differently within the mobile intelligent agent, the timing of receiving the external infrared signal from the charging pile differs, resulting in a relative time difference in the trigger signals output to the control unit. The control unit can determine the relative position of each infrared sensor circuit to the charging pile based on the relative time difference of the received trigger signals. For example, if the infrared sensor circuit on the left side of the mobile intelligent agent outputs its trigger signal later than the one on the right side, it indicates that the right side of the mobile intelligent agent is closer to the charging pile. In this case, the control unit controls the mobile intelligent agent to deflect to the left to adjust its posture until the time difference between the trigger signals output by the infrared sensor circuits on both sides approaches zero, indicating that the mobile intelligent agent and the charging pile are essentially aligned.

[0056] In some alternative implementations, such as Figure 5 As shown, the mobile intelligent agent power supply system also includes a voltage conversion circuit 9, wherein the first input terminal of the voltage conversion circuit 9 is connected to the output terminal of the automatic charging protection unit 1, the second input terminal of the voltage conversion circuit 9 is connected to the output terminal of the discharge protection unit 3, and the output terminal of the voltage conversion circuit 9 is connected to the power supply terminal of the control unit 6.

[0057] Figure 5 In the circuit, the voltage conversion circuit 9 includes: a first DC-DC unit 91, a second DC-DC unit 92, and a voltage regulator unit 93. The input terminal of the first DC-DC unit 91 is connected to the output terminal of the automatic charging protection unit 1, and the output terminal of the first DC-DC unit 91 is connected to the first terminal of the voltage regulator unit 93. The input terminal of the second DC-DC unit 92 is connected to the output terminal of the discharge protection unit 3, and the output terminal of the second DC-DC unit 92 is connected to the second terminal of the voltage regulator unit 93. The third terminal of the voltage regulator unit 93 is connected to the power supply terminal of the control unit 6.

[0058] Specifically, Figure 5 In this circuit, the first DC-DC unit 91 and the second DC-DC unit 92 are both used to step down the voltage at the input terminal. The voltage regulator unit 93 is a low-dropout regulator used to provide a stable DC voltage for the control unit. The voltage regulator unit 93 can also power the infrared sensing unit 5.

[0059] In some alternative implementations, the mobile intelligent agent power supply system further includes a communication unit, wherein a first end of the communication unit is connected to a communication end of the control unit, and a second end of the communication unit is connected to a terminal.

[0060] Optionally, the control unit connects to the host computer via a communication unit, transmitting information such as the charging / discharging status, docking status, and movement status of the mobile intelligent agent to the main controller of the mobile intelligent agent. This enables battery status detection and soft switching, as well as detection of overcurrent during charging and battery shutdown, and control of the mobile intelligent agent's movement trajectory. The control unit can also connect to lower-level devices via the communication unit, such as infrared ranging sensors, ultrasonic radar, anti-collision sensors, temperature sensors, humidity sensors, and sensitive gas concentration sensors, to achieve integrated sensing of the mobile intelligent agent's power supply system.

[0061] Optionally, Figure 6 The circuit board layout for the power supply system of the mobile intelligent agent shows a 120R connector paired with a two-position DIP switch for communication unit networking. The power supply box is a multi-port voltage conversion unit used to convert the battery's output voltage to different voltage levels to power various devices within the mobile intelligent agent. (Reference) Figure 5 Two communication units are connected to the MCU (control unit) via the first communication interface 7 and the second communication interface 8, respectively. The manual charging inlet and its connected reverse connection protection diode, TVS interface protection, and fuse holder (box) constitute the manual charging protection unit 2. The TVS port protection, reverse connection protection diode, and fuse holder (box) connected to the charging pile constitute the automatic charging protection unit 1. The TVS port protection and fuse holder (box) connected to the battery discharge outlet constitute the discharge protection unit 3. DCDC1, DCDC2, and LDO are respectively connected to... Figure 5 The first DC-DC unit 91, the second DC-DC unit 92, and the voltage regulator unit 93 are included; two infrared receivers connected to the MCU are also included. Figure 5 The two infrared sensing units 5 are shown in this embodiment. This embodiment is only an illustrative example and is not intended to be limiting.

[0062] This embodiment provides a mobile intelligent agent, including the mobile intelligent agent power supply system of the above embodiment or any corresponding implementation.

[0063] The mobile intelligent device provided in this embodiment has both automatic and manual charging functions. The automatic charging protection unit, manual charging protection unit, and discharge protection unit can prevent overcurrent or overvoltage damage to the mobile intelligent device during charging and discharging, or prevent reverse current from damaging the battery, thus improving the reliability of the power supply system. The power supply system also integrates infrared sensing functionality, allowing the mobile intelligent device to automatically charge after docking with the charging pile via infrared trajectory adjustment. The mobile intelligent device provided by this invention integrates multiple functions such as safety protection sensing, infrared docking, charge / discharge protection, and external communication, significantly improving the integration level of the mobile charging board.

[0064] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A power supply system, characterized in that, include: The battery includes an automatic charging protection unit, a manual charging protection unit, a discharge protection unit, a control unit, and an infrared sensing unit. The battery, automatic charging protection unit, manual charging protection unit, discharge protection unit, control unit and infrared sensing unit are integrated on the circuit board, which has a first communication interface and a second communication interface. The automatic charging protection unit receives a first power supply voltage at its input terminal, and its output terminal is connected to the output terminal of the manual charging protection unit, the charging terminal of the battery, and the power supply terminal of the control unit. The input terminal of the manual charging protection unit receives a second power supply voltage; The input terminal of the discharge protection unit is connected to the discharge terminal of the battery, and the output terminal of the discharge protection unit is connected to the power supply terminal of the control unit and outputs a third power supply voltage. The infrared sensing unit receives an external infrared signal at its input terminal, and its output terminal is connected to the input terminal of the control unit.

2. The power supply system according to claim 1, characterized in that, The automatic charging protection unit includes a first transient suppression diode and a first reverse protection unit; the manual charging protection unit includes a second transient suppression diode and a second reverse protection unit. The first terminal of the first transient suppression diode is connected to the first terminal of the first anti-reverse unit and inputs a first supply voltage, and the second terminal of the first transient suppression diode is grounded; The second end of the first anti-reverse unit is connected to the charging end of the battery; The first terminal of the second transient suppression diode is connected to the first terminal of the second anti-reverse unit and inputs the second power supply voltage; the second terminal of the second transient suppression diode is grounded. The second end of the second anti-reverse unit is connected to the charging end of the battery.

3. The power supply system according to claim 1, characterized in that, The discharge protection unit includes: a third transient suppression diode and a first fuse, wherein... The first terminal of the third transient suppression diode is connected to the discharge terminal of the battery and the first terminal of the first fuse, and the second terminal of the third transient suppression diode is grounded. The second terminal of the first fuse outputs a third power supply voltage.

4. The power supply system according to claim 1, characterized in that, The infrared sensing unit includes: at least one infrared sensing circuit, wherein... Each infrared sensing circuit receives an external infrared signal at its input terminal, and the output terminal of each infrared sensing circuit is connected to the input terminal of the control unit.

5. The power supply system according to claim 4, characterized in that, The infrared sensing circuit includes: an infrared receiving unit, a filtering unit, an infrared receiving indication unit, a first current limiting unit, and a second current limiting unit, wherein... The first end of the infrared receiving unit receives the external infrared signal, the second end of the infrared receiving unit is connected to the first end of the filtering unit, the first end of the infrared receiving indicator unit and the first end of the first current limiting unit, and the third end of the infrared receiving unit is connected to the second end of the filtering unit, the second end of the infrared receiving indicator unit and the first end of the second current limiting unit. The second end of the first current limiting unit is connected to an external power supply; The second end of the second current limiting unit is connected to the input end of the control unit.

6. The power supply system according to claim 2, characterized in that, Also includes: The second fuse, of which, The first end of the second fuse is connected to the second end of the first anti-reverse unit, and the second end of the second fuse is connected to the charging end of the battery.

7. The power supply system according to claim 1, characterized in that, Also includes: Voltage conversion circuit, in which, The first input terminal of the voltage conversion circuit is connected to the output terminal of the automatic charging protection unit, the second input terminal of the voltage conversion circuit is connected to the output terminal of the discharge protection unit, and the output terminal of the voltage conversion circuit is connected to the power supply terminal of the control unit.

8. The power supply system according to claim 7, characterized in that, The voltage conversion circuit includes: a first DC-DC unit, a second DC-DC unit, and a voltage regulator unit, wherein... The input terminal of the first DC-DC unit is connected to the output terminal of the automatic charging protection unit, and the output terminal of the first DC-DC unit is connected to the first terminal of the voltage regulator unit. The input terminal of the second DC-DC unit is connected to the output terminal of the discharge protection unit, and the output terminal of the second DC-DC unit is connected to the second terminal of the voltage regulator unit. The third terminal of the voltage regulator unit is connected to the power supply terminal of the control unit.

9. The power supply system according to claim 1, characterized in that, Also includes: Communication unit, in which, The first end of the communication unit is connected to the communication end of the control unit, and the second end of the communication unit is connected to the terminal.

10. A mobile intelligent agent, characterized in that, Includes the power supply system as described in any one of claims 1 to 9.

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