Provided are methods and systems for testing time parameters of an adaptor and systems. The method includes the following. After a testing system is coupled with an adaptor, a clock signal is received from the adaptor, where the clock signal is indicative of the transmission time of the instruction. A first valid interrupt of the clock signal, a square wave corresponding to the first valid interrupt, and a next valid interrupt of the first valid interrupt are acquired. A first falling edge and a first rising edge of the first valid interrupt, a second falling edge of the square wave, and a third falling edge of the next valid interrupt are acquired. A test result time parameters of the adaptor is generated according to the first falling edge, the first rising edge, the second falling edge, and the third falling edge.

An electric energy supply management method includes having a certifier system define a reference electric power profile for an electric apparatus, and having the certifier system provide a device coupled to the electric apparats and to a socket that delivers electric energy provided by an electric energy supplier. The device is associated only to the electric apparatus through the reference electric power profile. The method also includes having a user of the electric apparatus couple the electric apparatus to the socket through the device, and having the device check that the electric apparatus is coupled to the socket by comparing a measured electric power profile of the electric apparatus to the reference electric power profile. If the check has a positive outcome, the method has the device collect measurements about the electric power used by the electric apparatus and certify them as energy consumptions of the electric apparatus.

A charger includes a Type-A female socket, a PD charging processing unit, a non-PD charging processing unit, a data cable matching unit, and a first switching unit. The Type-A female socket includes a first communication pin. If the data cable matching unit determines, based on a matching signal transmitted via the first communication pin, that the charger is connected to a first to-be-charged device through a first data cable, and the first switching unit is connected to the first communication pin and the PD charging processing unit. If the data cable matching unit determines, based on a matching signal transmitted via the first communication pin, that the charger is connected to a second data cable or is connected to a second to-be-charged device through a data cable, the first switching unit is connected to the first communication pin and the non-PD charging processing unit.

A controller includes: a transmission terminal, operable for transmitting a clock signal transmitted by an external device, and also operable for receiving electric power supplied by a power source to enable the controller to generate a voltage signal; a processing unit, coupled to the transmission terminal, operable for performing a logical operation on the voltage signal and generating an indication signal based on the clock signal, the indication signal includes a rectangular wave signal having a first level and a second level; and a feedback unit, coupled to the processing unit, operable for providing a configuration signal indicating a type of the charging cable when the indication signal is changed from a second level to a first level. The transmission terminal transmits the configuration signal to the external device, to enable the external device to identify the type of the charging cable based on the configuration signal.

A communication terminal owned by a user who desires to use a charging device for an electric vehicle transmits a charging start command for the charging device. The communication terminal transmits the charging start command and an authentication key to a charging control device. When the authentication key is received, the charging control device attached to an outlet of the charging device authenticates the communication terminal, and when the authentication succeeds, the charging control device controls the charging device to start charging.

A power supply device for an electric work vehicle, including: a battery by which an electric work vehicle is drivable; a first connection unit for an internal inverter configured to convert DC power from the battery into AC power, and output the AC power to an internal electric device installed in the electric work vehicle; a second connection unit for an external inverter configured to convert DC power from the battery into AC power, and output the AC power to an external electric device; and a battery control unit connected to the first connection unit and the second connection unit, and configured to control charging of, and power supply from, the battery, wherein the battery control unit is configured to communicate with the external inverter side via the second connection unit to perform authentication regarding whether or not power supply to the external inverter is permitted.

A wireless power receiver includes a power pickup configured to receive a wireless power from a wireless power transmitter, and a communicator/controller configured to control the wireless power. The wireless power receiver transmits, to the wireless power transmitter during a configuration phase, a configuration packet including an AI flag related to whether the wireless power receiver supports an authentication function, receives, from the wireless power transmitter during a negotiation phase, a capability packet including an AR flag and a potential power value of the wireless power transmitter, wherein the AR flag is related to whether the wireless power transmitter supports the authentication function, and performs a power transfer phase with the wireless power transmitter. The wireless power receiver transmits, to the wireless power transmitter during the power transfer phase, an authentication request message, and receives, from the wireless power transmitter during the power transfer phase, an authentication response message.

A management apparatus includes a supply reception part, a supply transmission part, and a request reception part. The supply reception part receives, from a supplier terminal of a supplier who owns an electric power device capable of performing an electric power supply, electric power supply data which includes available information representing an available electric power amount and a position of the electric power device. The supply transmission part transmits the electric power supply data to a consumer terminal of a consumer who desires an electric power supply. The request reception part receives request data indicating a request of an electric power supply according to the electric power supply data from the consumer terminal.

A battery data management method for use in a battery data management system including an electric vehicle and a plurality of authentication servers each including a distributed ledger includes: obtaining, by the electric vehicle, first sensor information about a battery attached to the electric vehicle; generating, by the electric vehicle, first transaction data including the ID of the battery and the first sensor information; obtaining the first transaction data by one authentication server included in the plurality of authentication servers; and recording a block including the first transaction data into the distributed ledger by the one authentication server.

A charging cabinet system includes a power supply system, a controlling and displaying system, and a plurality of charging compartments. The power supply system is connected with the controlling and displaying system. The charging compartment is connected with both the power supply system and the controlling and displaying system. The charging compartment includes: a charging module for charging a low-power battery; a driving module for moving the battery out of the charging compartment or moving the battery into the charging compartment; a detection module for detecting whether a fully charged battery is picked by a user after being moved out of the charging compartment for a period of time; and a controller connected with the charging module, the driving module and the detection module, and connected with the controlling and displaying system. The technical effect of the disclosure is that it can effectively prevent the battery from being lost.