Speech recognition device, speech recognition device cooperation system, and speech recognition device cooperation method

In order to use a plurality of speech recognition devices in cooperation with each other, the speech recognition device is provided with: a speech input unit; a speech output unit; a communication control unit which transmits data to and receives data from another speech recognition device; a dialog mode execution unit which transmits, to the other speech recognition device, speech data input fromthe speech input unit, and outputs, from the speech output unit, speech data received from the other speech recognition device; a speech recognition unit which converts speech input from the speech input unit into text data; a hotword detection unit which detects, from the text data, a dialog starting hotword for instructing that the dialog mode execution unit be activated; and a command transmission unit which transmits a control command to the other speech recognition device. When the hotword detection unit has detected the dialog starting hotword, the command transmission unit transmits, to the other speech recogn