Abstract: A battery safety alert system includes a detection device and a controller communicatively connected to the detection device. The detection device is configured to detect position information of an engagement mechanism provided at one of a battery and a battery mounting member. A matching mechanism is provided at another one of the battery and the battery mounting member. The engagement mechanism is configured to engage with the matching mechanism to fix the battery to the battery mounting member. The controller is configured to receive the position information, determine whether the engagement mechanism is fully engaged with the matching mechanism based on the position information, and send out alarm information in response to the engagement mechanism not being fully engaged with the matching mechanism.

Abstract: USB device authentication, and in particular to a USB peripheral authentication method, an embedded system, and a storage medium. The method includes: verifying a user identity, and accessing a USB device authentication credential generation program of a legitimate user; acquiring USB device ID information, embedded system ID information, and a salt value generated by a random number generator; associating the information by means of a secure unit, using the information as an input, generating a key pair, and issuing a self-signed certificate; placing the information into a storage area of the secure unit, and returning the self-signed certificate and the salt value to the USB device or the user; and when the USB device is accessed, verifying whether the information matches, if yes, activating a USB communication function, or otherwise, disabling the communication function of the USB device.

Abstract: A cell assembly, an intelligent battery, and an unmanned aerial vehicle are provided. The cell assembly includes at least one cell bodies and at least one encryption circuit. The cell body is a smallest power supply unit, and the encryption circuit stores feature information of the cell body. The encryption circuit is directly or indirectly coupled to the cell body to form an independent unit, and the independent unit may be mechanically detachably and/or electrically connected to an external device. When the independent unit is electrically connected to the external device, the encryption circuit may send the feature information of the cell body to the external device, to identify whether the cell assembly is matchable and useable with the external device. Therefore, high-voltage and large-capacity intelligent batteries where cells are usually connected in series and/or in parallel are prevented from being counterfeited, and safety of the batteries is improved.

Abstract: A power supply includes a battery and a shell configured to house the battery. The power supply also includes at least one detecting device configured to operably couple to the shell and including a movable member, a sensing assembly, and a first position limiting structure. The movable member is configured to movably couple with the first position limiting structure. The sensing assembly is configured to generate an indication signal for indicating whether the power supply has been mounted to at a mounting position of a battery compartment based on a location of the movable member. When the power supply is mounted at the mounting position, the movable member is moved to a location adjacent a first side of the first position limiting structure, and the sensing assembly generates a first indication signal for indicating that the power supply is mounted at the mounting position.

Abstract: A method for controlling power supply to a device includes detecting that the device is in a first operating state selected from a plurality of predetermined operating states. The method also includes generating, based on the detected first operating state of the device, a first control signal for controlling a state of a switch, the switch being configured to control a power source to provide power to the device when the switch is in a connected state, and not provide power to the device when the switch is in a disconnected state. The method further includes controlling the switch according to the first control signal regardless of a second control signal, wherein the second control signal is configured to control the state of the switch when the device is in a second operating state selected from the plurality of predetermined operating states.

Abstract: A battery safety alert system includes a detection device and a controller communicatively connected to the detection device. The detection device is configured to detect position information of an engagement mechanism provided at one of a battery and a battery mounting member. A matching mechanism is provided at another one of the battery and the battery mounting member. The engagement mechanism is configured to engage with the matching mechanism to fix the battery to the battery mounting member. The controller is configured to receive the position information, determine whether the engagement mechanism is fully engaged with the matching mechanism based on the position information, and send out alarm information in response to the engagement mechanism not being fully engaged with the matching mechanism.

Abstract: A battery control method, a battery control system, an unmanned aerial vehicle, and a battery are provided in the present disclosure. The method includes acquiring status information of an unmanned aerial vehicle and electrical parameter information of a battery, where the battery is configured to supply power to the unmanned aerial vehicle. The method further includes determining whether the battery is abnormal according to the electrical parameter information of the battery. The method further includes, when the status information of the unmanned aerial vehicle indicates that the unmanned aerial vehicle is in a flight status and the battery is in an abnormal status, controlling the battery to continue supplying the power to the unmanned aerial vehicle.

Abstract: A battery discharge control method is provided. The battery discharge control method includes detecting a temperature of a battery when the battery self-discharges. The battery discharge control method also includes adjusting a discharge speed for the self-discharge of the battery based on the temperature of the battery.

Abstract: A protection plate includes a circuit board including a top surface and a bottom surface opposite to the top surface, a control circuit arranged at the top surface of the circuit board and configured to control a battery core, and a solder pad arranged at the bottom surface of the circuit board and soldered with an electrode tab of the battery core.