Battery and unmanned aerial vehicle with battery indicator and venting opening

1. A system, comprising:

a terminal including a user interface configured to receive user input for generating a first input signal or a second input signal; and

a power supply assembly including:

a communication interface configured to receive the first input signal or the second input signal from the terminal;

a power supply configured to power an unmanned vehicle;

a housing including a casing and a cover member positioned to cover an opening of the casing, wherein at least one venting opening of the casing is not exposed at an exterior surface of the unmanned vehicle when the casing is inserted in the unmanned vehicle; and

a power supply circuit in electrical communication with the power supply, wherein the power supply circuit is configured to switch the power supply between a plurality of operational modes in response to the first input signal, or display a level of charge or remaining capacity of the power supply in response to the second input signal.

2. The system of claim 1 , wherein the power supply circuit further comprises:

an electronic switch configured to control discharge of power from the power supply to the unmanned vehicle based on the plurality of operational modes of the power supply.

3. The system of claim 2 , wherein the electronic switch includes one of a power metal-oxide-semiconductor field-effect transistor (MOSFET), a solid state relay, a power transistor, or an insulated gate bipolar transistor (IGBT).

4. The system of claim 2 , wherein the plurality of operational modes of the power supply include at least a first operational mode and a second operation mode, wherein the first operational mode is associated with a switch-on state of the electronic switch that permits discharge of power from the power supply to the unmanned vehicle, and wherein the second operational mode is associated with a switch-off state of the electronic switch that prevents discharge of power from the power supply to the aerial vehicle.

5. The system of claim 1 , wherein the power supply circuit further comprises:

a power measurement device configured to calculate the level of charge or remaining capacity of the power supply during charging or discharging of the power supply; and

an indication device in electrical communication with the power measurement device, wherein the indication device is configured to display the level of charge or remaining capacity of the power supply calculated by the power measurement device in response to the second input signal.

6. The system of claim 5 , wherein the indication device is further configured to display the level of charge or remaining capacity of the power supply (1) without requiring the power supply to be connected to the unmanned vehicle and (2) without requiring the power supply to provide power to a propulsion unit of the unmanned vehicle to set the propulsion unit in motion.

7. The system of claim 5 , wherein the power measurement device further comprises a current sampling device, wherein the current sampling device is configured to detect a current signal during charging or discharging of the power supply, and wherein the power measurement device is configured to calculate the level of charge or remaining capacity of the power supply by sampling and integrating the current signal over a period of time at a predetermined frequency.

8. The system of claim 5 , wherein the indication device is configured to display the level of charge or remaining capacity of the power supply using a plurality of light-emitting diodes (LEDs).

9. The system of claim 5 , wherein the first input signal is for powering on or off the unmanned vehicle, and the second input signal is for powering on the indication device.

10. The system of claim 1 , wherein the communication interface is further configured to transmit the level of charge or remaining capacity of the power supply calculated by the power supply circuit to the terminal, and the user interface of the terminal is further configured to display the level of charge or remaining capacity of the power supply.

11. The system of claim 1 , wherein the communication interface is further configured to communicate with the unmanned vehicle, and the first input signal or the second input signal is configured to be received by the communication interface through the unmanned vehicle.

12. The system of claim 1 , wherein the user interface includes a button, and wherein the first input signal is generated when the button is depressed for a first time period, and the second input signal is generated when the button is depressed for a second time period that is different from the first time period.

13. The system of claim 1 , wherein the unmanned vehicle includes an unmanned aerial vehicle (UAV).

14. A power supply assembly of an unmanned vehicle, comprising:

a housing including a casing and a cover member positioned to cover an opening of the casing, wherein at least one venting opening of the casing is not exposed at an exterior surface of the unmanned vehicle when the casing is inserted in the unmanned vehicle;

a communication interface configured to receive a first input signal or a second input signal from a terminal;

a power supply configured to power the unmanned vehicle; and

a power supply circuit in electrical communication with the power supply, wherein the power supply circuit is configured to switch the power supply between a plurality of operational modes in response to the first input signal, or display a level of charge or remaining capacity of the power supply in response to the second input signal.

15. The power supply assembly of claim 14 , wherein the power supply circuit further comprises:

a power measurement device configured to calculate the level of charge or remaining capacity of the power supply during charging or discharging of the power supply; and

an indication device in electrical communication with the power measurement device, wherein the indication device is configured to display the level of charge or remaining capacity of the power supply calculated by the power measurement device in response to the second input signal,

wherein the indication device is configured to display the level of charge or remaining capacity of the power supply (1) without requiring the power supply to be connected to the unmanned vehicle and (2) without requiring the power supply to provide power to a propulsion unit of the unmanned vehicle to set the propulsion unit in motion.

16. The power supply assembly of claim 14 , wherein the communication interface is further configured to transmit the level of charge or remaining capacity of the power supply calculated by the power supply circuit to the terminal for displaying the level of charge or remaining capacity of the power supply on a user interface of the terminal.

17. A method, comprising:

receiving, via a communication interface of a power supply assembly, a first input signal or a second input signal from a terminal that are generated by the terminal in response to user input received via a user interface of the terminal;

switching, via a power supply circuit of the power supply assembly, a power supply of the power supply assembly between a plurality of operational modes in response to the first input signal, wherein the power supply is configured to power an unmanned vehicle; and

displaying, via the power supply circuit of the power supply assembly, a level of charge or remaining capacity of the power supply in response to the second input signal;

wherein the power supply assembly further includes a housing including a casing and a cover member positioned to cover an opening of the casing, wherein at least one venting opening of the casing is not exposed at an exterior surface of the unmanned vehicle when the casing is inserted in the unmanned vehicle.

18. The method of claim 17 , further comprising:

controlling, by an electronic switch of the power supply circuit, a discharge of power from the power supply to the unmanned vehicle based on the plurality of operational modes of the power supply;

calculating, by a power measurement device of the power supply circuit, the level of charge or remaining capacity of the power supply during charging or discharging of the power supply; and

displaying, by an indication device of the power supply circuit, the level of charge or remaining capacity of the power supply calculated by the power measurement device in response to the second input signal, wherein the indication device is configured to display the level of charge or remaining capacity of the power supply (1) without requiring the power supply to be connected to the unmanned vehicle and (2) without requiring the power supply to provide power to a propulsion unit of the unmanned vehicle to set the propulsion unit in motion.

19. The method of claim 17 , further comprising:

transmitting, via the communication interface of the power supply assembly, the level of charge or remaining capacity of the power supply calculated by the power supply circuit to the terminal; and

displaying, via the user interface of the terminal, the level of charge or remaining capacity of the power supply.