Abstract: A battery management system includes a battery cell module, a switching circuit, an analog front-end circuit, an electrically erasable read-only memory which is reproducible, and a micro-controller. The switching circuit is connected in parallel with the battery cell module. The switching circuit includes a charging field-effect transistor and a discharging field-effect transistor. The analog front-end circuit is configured to monitor battery information of the battery cell module. The battery information includes a voltage of the battery cell module, a current of the battery cell module and a temperature of the battery cell module. The analog front-end circuit is connected with the switching circuit. The micro-controller stores a starting program.

Abstract: An under-voltage protection method is applied in a battery management system. The battery management system includes a control module, an analog front-end unit, a monitoring unit, and a charging and discharging unit. The control module has a system communication function. The control module includes a micro-controller, and an electrically erasable programmable read-only memory connected with the micro-controller. The analog front-end unit is connected to the micro-controller. The monitoring unit is connected to the analog front-end unit. The charging and discharging unit includes a charging switch which is a charging field effect transistor, and a discharging switch which is a discharging field effect transistor. The monitoring unit, and the charging and discharging unit are connected with the analog front-end unit.

Abstract: A dynamic switching method is applied to an electronic switching device. Judge whether insertion and withdrawal times between the electronic switching device and a USB cable reach a preset threshold value. Start a UART function of the electronic switching device temporarily. Judge whether an instruction of starting the UART function sent by the USB cable is received. If a recognition program unit receives the instruction of starting the UART function, the recognition program unit starts the UART function. Execute the UART function. Judge whether the electronic switching device receives an instruction of stopping the UART function. Switch to an initial status. Change a start value of a UART circuit unit into an initial value of the UART circuit unit. Charge the electronic switching device through the USB cable.

Abstract: A short circuit detection module includes a power unit including a battery for providing a voltage of the battery, a monitoring unit, a switch unit, a heating unit and a control unit. The monitoring unit is connected with the power unit. The switch unit includes a first MOSFET, the monitoring unit is connected with the source electrode of the first MOSFET. The heating unit is connected with the drain electrode of the first MOSFET, the drain electrode of the first MOSFET transmits a heating current to the heating unit. A heating voltage is generated at an output terminal of the short circuit detection module. The control unit is connected with and controls the power unit, the monitoring unit, the switch unit and the heating unit. When the heating voltage is greater than a critical value of the heating voltage, the control unit turns off the first MOSFET.

Abstract: A smart adapter includes an insulating body, a plug fastened to the insulating body, at least one socket, at least one seven-segment displayer, at least one button and a main control unit. The at least one socket is mounted in the insulating body and is exposed to a front surface of the insulating body. The at least one seven-segment displayer is mounted in the insulating body. The at least one button is mounted in the insulating body and is exposed to the insulating body. The main control unit is mounted in the insulating body and is connected with the at least one socket, the plug and the at least one seven-segment displayer. The main control unit includes a cloud unit and a central processing unit. The cloud unit is connected to the at least one button and the central processing unit.

Abstract: A smart adapter includes an insulating body, a plug fastened to the insulating body, at least one socket, at least one seven-segment displayer, at least one button and a main control unit. The at least one socket is mounted in the insulating body and is exposed to a front surface of the insulating body. The at least one seven-segment displayer is mounted in the insulating body. The at least one button is mounted in the insulating body and is exposed to the insulating body. The main control unit is mounted in the insulating body and is connected with the at least one socket, the plug and the at least one seven-segment displayer. The main control unit includes a cloud unit and a central processing unit. The cloud unit is connected to the at least one button and the central processing unit.

Abstract: An electronic switching device includes a USB interface, a multifunctional module, a microprogrammed control module, a recognition program unit and a transient memory. The USB interface is connected with a computer through a USB cable. The multifunctional module includes a UART circuit unit and a power supply. The UART circuit unit and the power supply are disposed in the electronic switching device. The UART circuit unit is connected between the USB interface and the microprogrammed control module. The recognition program unit is disposed in the microprogrammed control module. The transient memory is disposed in the microprogrammed control module. The microprogrammed control module stores an initial value of the UART circuit unit or a start value of the UART circuit unit in the transient memory to dynamically switch UART function statuses of the UART circuit unit.

Abstract: A dynamic switching method is applied to an electronic switching device. Judge whether insertion and withdrawal times between the electronic switching device and a USB cable reach a preset threshold value. Start a UART function of the electronic switching device temporarily. Judge whether an instruction of starting the UART function sent by the USB cable is received. If a recognition program unit receives the instruction of starting the UART function, the recognition program unit starts the UART function. Execute the UART function. Judge whether the electronic switching device receives an instruction of stopping the UART function. Switch to an initial status. Change a start value of a UART circuit unit into an initial value of the UART circuit unit. Charge the electronic switching device through the USB cable.

Abstract: A portable electronic device management system includes a cloud server, a processing device and a portable electronic device. The cloud server is used to generate and transmit suggestion information. The processing device is set to include a wireless unit, a user interface and a calculation unit. The wireless unit is wirelessly connected with the cloud server and receives the suggestion information. The user interface receives a user input, and the calculation unit executes a calculation process according to the user input to generate and transmit setting information of the portable electronic device. The portable electronic device is set to include a communication module and a storage unit. The portable electronic device receives the setting information of the portable electronic device by virtue of the communication module being connected with the processing device. The storage unit is used for storing usage information.

Abstract: A data conversion device connected between a host terminal, and an equipment terminal applying an RS-232 (Recommended Standard-232) data format. The equipment terminal has an RS-232 connection port. The host terminal applies a USB (Universal Serial Bus) data format. The host terminal includes a USB docking port. The data conversion device includes a USB connection port connected to the USB docking port, a RS-232 docking port connected with the RS-232 connection port, and a micro controller. The micro controller is connected with the USB connection port and the RS-232 docking port. The micro controller has a group of RS-232 format parameters. The group of the RS-232 format parameters include a communication rate, a parity check and a data bit length. Modify the group of the RS-232 format parameters to make each RS-232 format parameter corresponding to a preset RS-232 data format.

Abstract: A data conversion device is used between a host terminal and an equipment terminal. The equipment terminal is equipped with an RS-232 connection port. The host terminal includes a USB docking port. The data conversion device includes an RS-232 docking port, a micro controller and a USB connection port. The RS-232 connection port is connected with the RS-232 docking port. The RS-232 docking port receives each one-byte data from a RS-232 protocol data packet of the RS-232 connection port in sequence. The micro controller is connected with the RS-232 docking port, after receiving the RS-232 protocol data packet of the RS-232 docking port and setting the RS-232 protocol data packet of the RS-232 docking port into a USB-HID protocol data packet.

Abstract: A short circuit detection module includes a power unit including a battery for providing a voltage of the battery, a monitoring unit, a switch unit, a heating unit and a control unit. The monitoring unit is connected with the power unit. The switch unit includes a first MOSFET, the monitoring unit is connected with the source electrode of the first MOSFET. The heating unit is connected with the drain electrode of the first MOSFET, the drain electrode of the first MOSFET transmits a heating current to the heating unit. A heating voltage is generated at an output terminal of the short circuit detection module. The control unit is connected with and controls the power unit, the monitoring unit, the switch unit and the heating unit. When the heating voltage is greater than a critical value of the heating voltage, the control unit turns off the first MOSFET.

Abstract: An electronic switching device includes a USB interface, a multifunction module, a microprogrammed control module, a recognition program unit and a transient memory. The USB interface is connected with a computer through a USB cable. The multifunction module includes a UART circuit unit connected with the USB interface, and a power supply electrically connected with the USB interface. The UART circuit unit and the power supply are disposed in the electronic switching device. The UART circuit unit is connected between the USB interface and the microprogrammed control module. The recognition program unit is disposed in the microprogrammed control module. The transient memory is disposed in the microprogrammed control module. The microprogrammed control module stores an initial value or a start value of the UART circuit unit in the transient memory to dynamically switch UART function statuses of the UART circuit unit.