System for unlocking door by mobile terminal software and unlocking method

The invention discloses a system for unlocking a door by mobile terminal software. The system for unlocking the door by the mobile terminal software is characterized in that the system comprises an automobile spare unlocking device and a mobile terminal, and the mobile terminal is wirelessly connected with the automobile spare unlocking device through a wireless mode for data transmission. The invention further discloses an unlocking method based on the system for unlocking the door by the mobile terminal software. According to the system for unlocking the door by the mobile terminal softwareand the unlocking method, remote control over an automobile lock can be realized, and at the same time, higher safety is also achieved. Automatic control over the temperature can be realized in the unlocking device so that the unlocking device can be prevented from being damaged due to too high or too low temperatures. Through a first automatic switch, a second automatic switch and a third automatic switch, opening and cl