System and method for voice control of intelligent building

A method (2) for voice control of an intelligent building with biometric authentication of the user (13), comprising the following steps:

• activation (201) of detecting for a speech signal of the user (13),
• detection (202) of the speech signal of the user (13) by means of single microphones of all stations (11, 12), and, in the case of detecting a speech signal, advancement to the next step, and, in the case of failing to detect a speech signal, return to the previous step,
• recording (203) of the speech signal of the user (13) by means of the microphone array of each station (11, 12) which has detected the speech signal,
• performing the formation of acoustic beams and extraction of acoustic signal (204) from the speech signals of the user (13),
• transmitting (205) signals from the preceding step to the base station (11), provided they were generated in the satellite station (12);
• otherwise, this step is omitted,
• receiving (206) signals from the preceding step and transmitting them to the server of biometric voice services (15),
• determining (207) the delays and relative locations of the stations (11, 12) and the user (13),
• performing the aggregation, enhancement and detection (208) of the signal of an activation password and a voice command based on acoustic signals from all stations (11, 12),
• recognising (209) the activation password,
• if the activation password has been recognised correctly, advancing (210) to the next step;
• if not, returning to the first step (201) of the method,
• verifying the activation password in a biometric manner and analysing the voice command (211),
• forwarding (212) the voice command for execution along with contextual information about the location of the user (13) and the stations (11, 12).