Abstract: Disclosed in the present disclosure are an insulation resistance detection circuit, a resistance detection method, a converter and a photovoltaic centrifuge. The insulation resistance detection circuit includes a resistance detection module connected between a positive electrode and a negative electrode of a direct-current bus to be detected. The resistance detection module includes a first resistance bridge and a second resistance bridge arranged in parallel. The first resistance bridge is connected to the positive electrode of the direct-current bus by means of a first sampling resistor R1. The second resistance bridge is connected to the negative electrode of the direct-current bus by means of a second sampling resistor R2, and both the first sampling resistor R1 and the second sampling resistor R2 are equipped with voltage sampling chips.

Abstract: The present disclosure relates to an optical storage converter, a control method and device thereof, and a computer readable storage medium. The control method for the optical storage converter includes: obtaining a voltage measurement and a current measurement of a universal interface of the optical storage converter in the case where an apparatus is accessed to the universal interface, to determine whether the apparatus accessed to the universal interface is a photovoltaic system or an energy storage system; and adjusting an internal circuit of the optical storage converter correspondingly in the case where the accessed apparatus is the photovoltaic system or the energy storage system.

Abstract: Disclosed in the present disclosure are an energy control system, method and device, and electronic equipment. The energy control system includes a controlled system, an energy control device and a weather server. The controlled system includes power generation equipment, energy storage equipment and air conditioning equipment. The power generation equipment, the energy storage equipment and the air conditioning equipment are connected in parallel by means of a direct-current bus. The air conditioning equipment is also connected to an alternating-current power grid; and the energy control device is in communication connection with the controlled system and the weather server respectively, and is used to acquire weather forecast information in a preset future time period from the weather server and send an optimal energy flow configuration in the preset future time period to the controlled system.

Abstract: The present disclosure relates to a driving circuit and method, a frequency converter, a device and a computer readable storage medium. The circuit includes: a rectifier unit including a first input terminal, a second input terminal and an output terminal, wherein the output terminal of the rectifier unit is connected to an input terminal of the inverter unit, and the second input terminal of the rectifier unit is connected to the input terminal of the inverter unit a first switch arranged between the first input terminal of the rectifier unit and an output terminal of the inverter unit, and configured to control the driving circuit to switch between a series mode and a parallel mode by being switched on or off; the inverter unit with the output terminal connected to a load; and a capacitor connected in parallel between the rectifier unit and the inverter unit.

Abstract: Device, system and method for creating virtual credit are provided. The method includes acquiring user real-name information from a user interface by a terminal device, wherein an electronic exchange account associating with the acquired user real-name information is not saved in a first server; sending the user real-name information to a second server; detecting if a credit card account associating with the user real-name information is saved in the second server, and creating a virtual credit card account if the credit card account is saved in the second server; and storing the virtual credit card associated with the virtual credit card account in the data storage of the first server.

Abstract: A method for controlling an air conditioner outdoor unit comprises: acquiring the working mode of the air conditioner outdoor unit; acquiring sensor parameters of the air conditioner outdoor unit according to the working mode, the sensor parameters including wind direction parameters read by a wind direction sensor (163) or temperature parameters read by a temperature sensor (161); determining control parameters for the air conditioner outdoor unit by the working mode and the sensor parameters corresponding to the working mode; driving the rotating speed of a fan (121) and the rotating angle of a wind direction adjusting device (125) by use of the control parameters. In addition, a control system for the air conditioner outdoor unit is also related to.

Abstract: A method for controlling an air conditioner outdoor unit comprises: acquiring the working mode of the air conditioner outdoor unit; acquiring sensor parameters of the air conditioner outdoor unit according to the working mode, the sensor parameters including wind direction parameters read by a wind direction sensor (163) or temperature parameters read by a temperature sensor (161); determining control parameters for the air conditioner outdoor unit by the working mode and the sensor parameters corresponding to the working mode; driving the rotating speed of a fan (121) and the rotating angle of a wind direction adjusting device (125) by use of the control parameters. In addition, a control system for the air conditioner outdoor unit is also related to.

Abstract: The present disclosure directs to method, device, system for creating virtual credit card. The method includes: receiving a subset of real-name information from a user interface of a terminal device; searching the real-name information stored in the first server with the subset of the real-name information; upon the real-name information is found, sending the real-name information to the second server; finding whether the real-name information associates with a credit card account; after finding the credit card account is not stored in the second server, determining whether an exchange resource account tying to the electronic exchange account is stored in the first server; if the exchange resource account is not stored, receiving account information of a resource saving account, and binding the electronic exchange account and the resource saving account; creating a virtual credit card account by the second server; and storing the virtual credit card in the first server.

Abstract: The present disclosure is directed to device, system and method for creating a virtual credit card. The method includes: receiving a subset of real-name information from a user interface of a terminal device; searching the real-name information stored in the first server with the subset of the real-name information; upon real-name information is found, sending the real-name information to the second server; after finding the credit card account is not stored in the second server, sending a credit indicator to the first server; if the exchange resource account tying to the electronic exchange account is stored in the first server, creating, by the second server, a virtual credit card account; and storing the virtual credit card associated with the virtual credit card account in the data storage of the first server.

Abstract: Device, system and method for creating virtual credit card are provided. The method includes: receiving real-name information from a user interface of a terminal device wherein an electronic exchange account associated with the real-name information is not stored in a first server; receiving the user real-name information by the second server, finding whether a credit card account associating with the user real-name information is stored, and when the credit card account is not stored, sending an indicator to the first server; receiving account information a resource saving account by the first server, creating an electronic exchange account by using the user real-name information and binding the electronic exchange account with the resource saving account; creating a virtual credit card account by using the real-name information; and storing the virtual credit card associated with the virtual credit card account in the data storage.

Abstract: Device, system and method for creating virtual credit are provided. The method includes acquiring user real-name information from a user interface by a terminal device, wherein an electronic exchange account associating with the acquired user real-name information is not saved in a first server; sending the user real-name information to a second server; detecting if a credit card account associating with the user real-name information is saved in the second server, and creating a virtual credit card account if the credit card account is saved in the second server; and storing the virtual credit card associated with the virtual credit card account in the data storage of the first server.

Abstract: The present disclosure relates to the field of network technologies. Disclosed are a method and an apparatus for presenting a targeting condition of a network advertisement. The method includes: acquiring information about delivery click-through situations, of a historical advertisement having a type the same as a type of a to-be-delivered advertisement, in targeting conditions; determining a targeting condition matching the historical advertisement among the targeting conditions according to the acquired information about the delivery click-through situations; and presenting the determined targeting condition. The present disclosure can improve the utilization rate of system and network resources in a network advertisement delivery process.

Abstract: Network information push is described. The described techniques include: obtaining friend information of a user according to user identity of the user, and determining whether any friends of the user have interactions with a corresponding network service; and if yes, pushing to the user information about the network service and information about the interactions occurred between the user's friends and the network service. With the method and system of the present disclosure, information about the network services and information about the interactions occurred between the user's friends and the network service are pushed initiatively to the user without the need to collect information by the user, which is more convenient and efficient. Further, since the interaction information is obtained according to the friend information of the user, it may have higher correlation with the user, and thus improve the accuracy of information push.