초록 ▼

Computer based energy service provider (ESP) information service has been developed for providing operational and management services for distributed local power generation units. The ESP is a subscription service for customers that purchase power from utilities and generate their own power on site

Computer based energy service provider (ESP) information service has been developed for providing operational and management services for distributed local power generation units. The ESP is a subscription service for customers that purchase power from utilities and generate their own power on site from a local power generation unit. The ESP service enables those customers to decide when to purchase power from the utility or generate their own power, and may provide control of the customer's power generation unit. Using the ESP, a customer may select whether to exclusively purchase power from a utility, exclusively generate its own power or allow the ESP service to determine whether power should be purchased or self-generated. The ESP service stores the customer's selections and remotely controls and operates the local power generation unit and a switch which connects the customer site alternatively to a utility power source or the power generation service.

대표청구항 ▼

Computer based energy service provider (ESP) information service has been developed for providing operational and management services for distributed local power generation units. The ESP is a subscription service for customers that purchase power from utilities and generate their own power on site

Computer based energy service provider (ESP) information service has been developed for providing operational and management services for distributed local power generation units. The ESP is a subscription service for customers that purchase power from utilities and generate their own power on site from a local power generation unit. The ESP service enables those customers to decide when to purchase power from the utility or generate their own power, and may provide control of the customer's power generation unit. Using the ESP, a customer may select whether to exclusively purchase power from a utility, exclusively generate its own power or allow the ESP service to determine whether power should be purchased or self-generated. The ESP service stores the customer's selections and remotely controls and operates the local power generation unit and a switch which connects the customer site alternatively to a utility power source or the power generation service. pted text is encrypted and transmitted to said partner apparatus; whereby said ID code received from said partner apparatus is stored in a storage means while said session key is used for a current session, and said ID code received from said partner apparatus is deleted from said storage means when another session key is used for a next session; and whereby said session key is encrypted according to a license key that is generated by concatenating said ID code received from said partner apparatus with a service key unique to the data to be transmitted and applying a hash function to the concatenation. 4. A data transmitting method according to claim 3 whereby said encrypted text is generated from information stored in advance and received information. 5. A computer readable recording medium for storing a program executed by a computer for performing a data transmitting method comprising the steps of: transmitting data after predetermined processing based upon an own ID code and an ID code received from partner apparatus; and receiving an authentication requesting signal from a partner apparatus and examining said authentication requesting signal and, if a encrypted text generated by encrypting a session key is found already transmitted to said partner apparatus, said encrypted text is not encrypted and transmitted again to said, partner apparatus but, if said encrypted text has not been transmitted yet to said partner apparatus, said encrypted text is encrypted and transmitted to said partner apparatus; whereby said ID code received from said partner apparatus is stored in a storage means while said session key is used for a current session, and said ID code received from said partner apparatus is deleted from said storage means when another session key is used for a next session; and whereby said session key is encrypted according to a license key that is generated by concatenating said ID code received from said partner apparatus with a service key unique to the data to be transmitted and applying a hash function to the concatenation. 6. A computer readable recording medium according to claim 5 wherein said encrypted text is generated from information stored in advance and received information. 7. A data transmitting apparatus wherein data is transmitted after predetermined processing based upon said apparatus' own ID code and an ID code received from partner apparatus has been carried out, said apparatus comprising: a signal receiver; a signal encrypter coupled with said signal receiver; and a signal transmitter coupled with said signal encrypter; wherein said signal encrypter examines a signal received by said signal receiver to determine information indicating a signal transmitting source while carrying out predetermined encryption on a signal to be transmitted and, if it is determined that a encrypted text generated by encrypting a session key has already been transmitted to said signal transmitting source, said signal is not transmitted by said signal transmitter again to said signal transmitting source; whereby said ID code received from said partner apparatus is stored in a storage means while said session key is used for a current session, and said ID code received from said other equipment is deleted from said storage means when another session key is used for a next session; and whereby said session key is encrypted according to a license key that is generated by concatenating said ID code received from said partner apparatus with a service key unique to the data to be transmitted and applying a hash function to the concatenation.