Abstract: The present invention relates to system and method for user-controllable sharing of authorization for private data, wherein the system at least comprises: a blockchain node, for recording and verifying transaction information and/or completing payment, a client, for encrypting a symmetric key into a re-encryption key to be sent to an IPFS node, so that after a re-encryption request it sends to the IPFS node is verified as valid, the client sends the symmetric key to a server; the IPFS node, for calling a zero-knowledge proof verification contract from the blockchain node in response to the re-encryption request from the client, and performing authorization and verification; a server, for sending first encrypted data involving user authorization to the IPFS node, and/or acquiring the symmetric key sent by the client and capable of decrypting authorization data.

Abstract: A washing machine calculates corresponding first pouring amount of the laundry detergent based on acquired information and displays the first pouring amount of the laundry detergent. The washing machine detects and judges a variable of the first pouring amount of the laundry detergent to form a second pouring amount of the laundry detergent, the washing procedure is started, and the washing machine pours the laundry detergent at a first pouring amount or a second pouring amount of the laundry detergent. The invention further provides a washing machine which includes an automatic pouring device, a computer board and a display screen, wherein the automatic pouring device pours based on the pouring amount of the laundry detergent calculated by the computer board, and the display screen is used for displaying the first pouring amount of the laundry detergent and/or the second pouring amount of the laundry detergent in real time.

Abstract: Disclosed is a washing machine failure detection and processing method, comprising the following steps: a PC pointer detection step: respectively detecting various running processes of a washing machine; respectively detecting whether a current value of a logical register is the same as an assigned value after the running of various subprograms is ended, and if the current value is different from the assigned value, judging that a PC pointer fails, and keeping a record of a current failure occurring in which running process of the washing machine according to the assigned value; and when it is judged that the PC pointer fails, waiting for a time t1, and continuing to detect whether the current value of the logical register is the same as the assigned value, and if so, continuing to execute the subprogram, otherwise executing system resetting.