Mobile power supply leasing equipment

Abstract

The mobile power supply leasing equipment comprises a charging base station and a mobile power supply, the charging base station comprises at least one battery compartment, the inner end of the battery compartment is provided with a first contact, the charging base station is further provided with a first micro-control unit and an NFC module, the NFC module comprises a second micro-control unit, an NFC chip and a first coil, the first coil is connected with the NFC chip, and the NFC chip is connected with the first micro-control unit. The NFC chip is connected with the second micro-control unit, and the second micro-control unit is connected with the first micro-control unit; the mobile power supply is provided with a second contact and an electronic tag, and when the mobile power supply is stored in the battery compartment, the first contact is in contact with the second contact. On the basis of traditional probe communication detection or sensor detection, an NFC module is additionally arranged on a charging base station, an electronic tag is additionally arranged on a mobile power supply, and interaction between the charging base station and the mobile power supply is achieved through NFC communication. When a fault occurs in probe communication or sensor detection, whether the mobile power supply is returned or not can be identified through NFC communication.

Description

Technical Field

[0001] The utility model relates to the field of mobile power supplies, in particular to mobile power supply rental equipment. Background Art

[0002] Figure 1 The figure shows a traditional shared power bank rental device currently on the market, which includes a charging cabinet 10 and a power bank 12. The charging cabinet 10 and the power bank 12 have microcontroller units 11 and 121 (MCU for short), respectively. The charging cabinet 10 mainly determines whether the power bank has been returned by means of sensor or probe communication. In actual use, the return status may be misjudged due to sensor failure, signal interference or other technical problems, resulting in a situation where the device is clearly returned but not returned or vice versa, causing user dissatisfaction and disputes. In addition, power banks of different brands and models on the market may have differences in interaction with base stations, resulting in incompatibility or inaccurate judgment of incompatibility. Utility Model Content

[0003] In order to solve at least one technical problem of the prior art, the utility model provides a mobile power rental device.

[0004] The mobile power rental device disclosed in the present invention includes a charging base station and a mobile power supply. The charging base station includes at least one battery compartment. The inner end of the battery compartment is provided with a first contact. The charging base station also has a first micro control unit and an NFC module. The NFC module includes a second micro control unit, an NFC chip and a first coil. The first coil is connected to the NFC chip, the NFC chip is connected to the second micro control unit, and the second micro control unit is connected to the first micro control unit. The mobile power supply has a second contact and an electronic tag. When the mobile power supply is stored in the battery compartment, the first contact is in contact with the second contact.

[0005] The mobile power rental device of this embodiment can determine whether the mobile power is returned by physical contact between the first contact and the second contact. At the same time, on the basis of traditional probe communication detection or sensor detection, an NFC module is added to the charging base station and an electronic tag is added to the mobile power, and the interaction between the charging base station and the mobile power is realized through NFC communication. When the mobile power is close to the charging base station, the electronic tag on the mobile power is identified by the first coil and the NFC chip to obtain the identity, status and other information of the mobile power. The first micro control unit can be set on the main board of the charging base station. The second micro control unit is respectively connected to the NFC chip and the first micro control unit to realize the transmission of read and write information between the NFC chip and the first micro control unit. The first micro control unit controls the communication with the server to realize the management of the mobile power. When the contacts are pressed against each other but the probe communication or sensor detection fails or the reporting instruction fails, the NFC communication can be triggered to identify whether the mobile power is returned.

[0006] In some embodiments, the mobile power supply further comprises a third micro control unit, which is built in the mobile power supply and can be used to control and manage the mobile power supply.

[0007] In some embodiments, a resonant circuit and an impedance matching circuit are provided between the NFC chip and the first coil. The resonant circuit can generate a resonance phenomenon in the circuit, converting electrical energy into magnetic energy and charge energy. The impedance matching circuit can filter and select the frequency of the signal, so that the signal of a specific frequency can be better transmitted and received, while suppressing interference signals of other frequencies.

[0008] In some embodiments, the resonant circuit includes an inductor L1 / L2, a capacitor C5 / C12, a capacitor C4 / C11, and a capacitor C8 / C14, the capacitor C8 / C14 is connected in parallel to the first coil 2213, one end of the capacitor C4 / C11 is connected to C8 / C14 and connected to the signal output end of the first coil 2213 through the zero-ohm resistor R6 / R9, and the other end is connected to the capacitor C5 / C12, one end of the capacitor C5 / C12 is connected to the capacitor C4 / C11 and the inductor L1 / L2, and the other end is connected to the other end of the first coil 2213 with the capacitor C8 / C14, and the other end of the inductor L1 / L2 is connected to the TX1 pin of the NFC chip.

[0009] In some embodiments, the impedance matching circuit includes a resistor R5 and a capacitor C6, the capacitor C6 is connected to the signal input end of the first coil 2213, and the other end is connected to the resistor R5, and the other end of the resistor R5 is connected to the RX pin of the NFC chip.

[0010] In some embodiments, the second micro control unit communicates with the first micro control unit via a serial interface.

[0011] In some embodiments, NFC modules are respectively arranged at the four corners of the charging base station. Arranging NFC modules at multiple points helps to improve the recognition of electronic tags and prevent the mobile power supply from being too far away from the NFC module to be unable to recognize the electronic tag.

[0012] In some embodiments, the second microcontroller unit of one NFC module communicates with the second microcontroller unit of another NFC module via a serial interface.

[0013] In some embodiments, the NFC chip communicates with the second micro control unit via an SPI interface. The NFC chip communicates with the second micro control unit via an SPI interface, which can achieve high-speed transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The power bank rental equipment architecture of the related art is shown.

[0015] Figure 2 The architecture of some examples of mobile power rental equipment of the present disclosure is shown.

[0016] Figure 3 The architecture of the NFC module of some examples of the present disclosure is shown.

[0017] Figure 4 Schematic diagrams of a first coil, a resonant circuit, and an impedance matching circuit according to some examples of the present disclosure are shown.

[0018] Figure 5 Schematic diagrams of NFC chips in some examples of the present disclosure are shown.

[0019] Figure 6 A second micro control unit in some examples of the present disclosure is shown. DETAILED DESCRIPTION

[0020] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0021] Figure 2 An architectural diagram of a mobile power rental device according to some examples of the present disclosure is shown. Figure 3 The architecture of the NFC module of some examples of the present disclosure is shown. In some examples of the present disclosure, the mobile power rental device includes:

[0022] The charging base station 20 includes at least one battery compartment, the inner end of the battery compartment is provided with a first contact point, the charging base station 20 also has a first micro control unit 21 and an NFC module 211, the NFC module 211 includes a second micro control unit 2211, an NFC chip 2212 and a first coil 2213, the first coil 2213 is connected to the NFC chip 2212, the NFC chip 2212 is connected to the second micro control unit 2211, and the second micro control unit 2211 is connected to the first micro control unit 21;

[0023] The mobile power source 22 has a second contact and an electronic tag 222. When the mobile power source 22 is stored in the battery compartment, the first contact is in contact with the second contact.

[0024] The mobile power rental device can determine whether the mobile power is returned by physical contact between the first contact and the second contact, that is, the traditional probe communication or sensor detection method is retained. The example disclosed in the present invention adds an NFC module 211 to the charging base station and an electronic tag 222 to the mobile power 22 on the basis of traditional probe communication detection or sensor detection, and realizes the interaction between the charging base station and the mobile power 22 through NFC communication. When the mobile power 22 is close to the charging base station, the electronic tag 222 on the mobile power 22 is identified by the first coil 2213 and the NFC chip to obtain the identity, status and other information of the mobile power 22. The first micro control unit 21 can be set on the main board of the charging base station 20. The second micro control unit 2211 is connected to the NFC chip 2212 and the first micro control unit 21 for communication, so as to realize the transmission of read and write information between the NFC chip 2212 and the first micro control unit 21. The first micro control unit 21 controls the communication with the server to realize the management of the mobile power 22.

[0025] In some examples, the mobile power source 22 further includes a third micro control unit 221. The third micro control unit 221 is built in the mobile power source and can be used to control and manage the mobile power source 22.

[0026] In some examples of the present disclosure, the first microcontroller unit 21 and the third microcontroller unit 221 may use microcontroller units in existing rental equipment. For example, the first microcontroller unit 21 may be STC8H1K28-36I-LQFP32, and the third microcontroller unit 221 may be SC8F2892B, but are not limited to the listed models.

[0027] In some examples, the electronic tag is attached to the housing of the mobile power supply. The electronic tag may include a second coil and a tag chip, for example, the tag chip may be FM11RFOO5UL model.

[0028] In some examples, a resonant circuit and an impedance matching circuit are provided between the NFC chip 2212 and the first coil 2213. The NFC chip sends a signal through the resonant circuit and transmits the signal to the electronic tag through the first coil 2213. The resonant circuit can generate a resonance phenomenon in the circuit, converting electrical energy into magnetic energy and charge energy. The impedance matching circuit can filter and select the frequency of the signal, so that the signal of a specific frequency can be better transmitted and received, while suppressing interference signals of other frequencies.

[0029] Figure 4 Schematic diagrams of a first coil, a resonant circuit, and an impedance matching circuit in some examples of the present disclosure are shown. Figure 5 A schematic diagram of the NFC chip 2212 in some examples of the present disclosure is shown taking Si523 as an example.

[0030] For some examples, see Figure 4 and Figure 5 The resonant circuit includes inductor L1 / L2, capacitor C5 / C12, capacitor C4 / C11 and capacitor C8 / C14. Capacitor C8 / C14 is connected in parallel with the first coil 2213. One end of capacitor C4 / C11 is connected to C8 / C14 and connected to the signal output end of the first coil 2213 through zero-ohm resistor R6 / R9, and the other end is connected to capacitor C5 / C12. One end of capacitor C5 / C12 is connected to capacitor C4 / C11 and inductor L1 / L2, and the other end is connected to the other end of the first coil 2213 with capacitor C8 / C14. The other end of inductor L1 / L2 is connected to the TX1 pin of the NFC chip.

[0031] For some examples, see Figure 4 and Figure 5 The impedance matching circuit includes a resistor R5 and a capacitor C6. The capacitor C6 is connected to the signal input end of the first coil 2213 and the other end is connected to the resistor R5. The other end of the resistor R5 is connected to the RX pin of the NFC chip.

[0032] Figure 6 Taking STC15W408AS-35I as an example, a schematic diagram of the second microcontroller unit 2211 in some examples of the present disclosure is shown. J1, J2, and J3 are serial interfaces, wherein J2 and J3 can be used to communicate with the second microcontroller unit 2211 of other NFC modules 211 and the first microcontroller unit 21 on the main board of the charging base station, respectively. J4 is a serial peripheral device (SPI) interface, and the NFC chip can communicate with the second microcontroller unit 2211 through the SPI interface.

[0033] In some examples, the four corners of the charging base station are respectively provided with NFC modules 211. Arranging NFC modules at multiple points helps to improve the recognition of electronic tags and prevents the mobile power supply from being too far away from the NFC module to be unable to recognize the electronic tag.

[0034] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Mobile power rental equipment, characterized in that: include: A charging base station, comprising at least one battery compartment, wherein the inner end of the battery compartment is provided with a first contact point, the charging base station further comprises a first micro control unit and an NFC module, wherein the NFC module comprises a second micro control unit, an NFC chip and a first coil, wherein the first coil is connected to the NFC chip, the NFC chip is connected to the second micro control unit, and the second micro control unit is connected to the first micro control unit; The mobile power supply comprises a second contact and an electronic tag. When the mobile power supply is stored in a battery compartment, the first contact contacts the second contact.

2. The mobile power rental device according to claim 1, characterized in that: The mobile power supply also includes a third micro control unit.

3. The mobile power rental device according to claim 1, characterized in that: A resonant circuit and an impedance matching circuit are provided between the NFC chip and the first coil.

4. The mobile power rental device according to claim 3, characterized in that: The resonant circuit comprises an inductor L1 / L2, a capacitor C5 / C12, a capacitor C4 / C11 and a capacitor C8 / C14, wherein the capacitor C8 / C14 is connected in parallel with the first coil (2213), one end of the capacitor C4 / C11 is connected with C8 / C14 and connected to the signal output end of the first coil (2213) through the zero-ohm resistor R6 / R9, and the other end is connected to the capacitor C5 / C12, one end of the capacitor C5 / C12 is connected with the capacitor C4 / C11 and the inductor L1 / L2, and the other end is connected with the capacitor C8 / C14 to the other end of the first coil (2213), and the other end of the inductor L1 / L2 is connected to the TX1 pin of the NFC chip.

5. The mobile power rental device according to claim 4, characterized in that: The impedance matching circuit comprises a resistor R5 and a capacitor C6, wherein the capacitor C6 is connected to a signal input end of the first coil (2213) and the other end is connected to the resistor R5, and the other end of the resistor R5 is connected to the RX pin of the NFC chip.

6. The mobile power rental device according to claim 1, characterized in that: The second micro control unit communicates with the first micro control unit via a serial interface.

7. The mobile power rental device according to claim 1, characterized in that: The four corners of the charging base station are respectively provided with NFC modules.

8. The mobile power rental device according to claim 1, characterized in that: The second micro control unit of one NFC module communicates with the second micro control unit of another NFC module through a serial interface.

9. The mobile power rental device according to claim 1, characterized in that: The NFC chip communicates with the second micro control unit via an SPI interface.

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