An electric lock device configured to be mounted to a door panel that has two opposite sides, said electric lock device comprising:
- a solar energy module adapted to be disposed at one of the sides of the door panel, and configured to convert solar energy into an electricity output;
- a biometric verification module adapted to be disposed at said one of the sides of the door panel, and configured to receive a biometric input signal relative to a biometric feature, to determine whether the biometric feature conforms with a set of pre-established data, and to generate a conforming signal when it is determined that the biometric feature conforms with the set of pre-established data;
- a control module electrically coupled to said solar energy module and said biometric verification module, and configured to measure the electricity output from said solar energy module, to receive the conforming signal from said biometric verification module, and to generate a control signal when a measurement of the electricity output is greater than a threshold value, said control module being capable of generating an unlocking signal according to the conforming signal;
- an electrical energy storage module electrically coupled to said solar energy module and said control module, and configured to store electrical energy from one of mains electricity and the electricity output of said solar energy module, and to provide the electrical energy stored therein as an electrical power source of said electric lock device;
- and
- an electric lock having a keyhole and a blocking member that are adapted to be disposed at said one of the sides of the door panel, and electrically coupled to said control module for receiving the control signal and the unlocking signal, said electric lock being configured to
- operate, in response to receipt of the control signal, in an electric control mode, in which said blocking member covers said keyhole and said electric lock operates to unlock the door panel when receiving the unlocking signal, and
- operate, in response to the absence of the control signal, in a manual mode, in which said blocking member exposes said keyhole and said electric lock is manually operable to lock and unlock the door panel,
- wherein said control module is configured to
- further measure each of the mains electricity and the electrical energy stored in said electrical energy storage module,
- generate the control signal when one of measurements respectively of the electricity output, the mains electricity and electrical energy is greater than the threshold value,
- control said electrical energy storage module to store the electricity output from said solar energy module as the electrical energy when the measurement of the electricity output is greater than the threshold value, and
- control said electrical energy storage module to store the mains electricity as the electrical energy when the measurement of the electricity output is smaller than the threshold value and the measurement of the mains electricity is greater than the threshold value.