Abstract: A secure real-time data replication system includes a key management server that provides keys to hosts that store encrypted data. Data to be written in one host is encrypted using a key received from the key management server; the encrypted data is stored in the host. A copy of the data is provided to another host for real-time data replication. In the other host, the copy of the data is encrypted using another key received from the key management server; the encrypted copy of the data is stored in the other host. Keys are provided by the key management server based on policy rules governing the keys.

Abstract: Example systems and methods for authorizing a financial charge from the head unit of a vehicle are shown, in m example, vehicle position information is received from the head unit at a cloud server. The cloud server can also receive purchase information from the head unit of the vehicle. The cloud server can then verify that the purchase is appropriate given a location of the vehicle, based on the purchase information and the vehicle position information, and pass the purchase information to a credit or debit card processor when the purchase has been verified.

Abstract: A method of hybrid power management is provided in the present invention, comprising steps of: providing a hybrid power output device being coupled to a load and comprising a fuel cell module and a secondary cell module; determining a plurality of threshold values, each representing one of output power modes of the hybrid power output device respectively; and monitoring a characteristic value output from the fuel cell module and comparing the characteristic value with the threshold values to determine one of the output power modes to supply power to the load. Moreover, the present invention further provides a system of hybrid power management using the foregoing method to control switches to select from the output power modes such as supplying power from the fuel cell module only, from both the fuel cell module and the secondary battery, or cutting off power supply to the load according to the power state of the fuel cell module.

Abstract: A method of hybrid power management is provided in the present invention, comprising steps of: providing a hybrid power output device being coupled to a load and comprising a fuel cell module and a secondary cell module; determining a plurality of threshold values, each representing one of output power modes of the hybrid power output device respectively; and monitoring a characteristic value output from the fuel cell module and comparing the characteristic value with the threshold values to determine one of the output power modes to supply power to the load. Moreover, the present invention further provides a system of hybrid power management using the foregoing method to control switches to select from the output power modes such as supplying power from the fuel cell module only, from both the fuel cell module and the secondary battery, or cutting off power supply to the load according to the power state of the fuel cell module.