Wireless charging device, the method thereof and security device including wireless charging device

A wireless charging device comprising a wireless receiving module, a controller, a first charging module, and a second charging module, wherein:

• the wireless receiving module is configured to receive a wireless charging signal from an external wireless transmitting module in response to the wireless charging device being in a wireless sensing area, transmit a state indication signal to the controller, receive a charging indication signal from the controller, and determine whether to transmit the wireless charging signal to the first charging module according to the charging indication signal, wherein the state indication signal comprises information indicating that the wireless charging device is in a wireless charging state and a level signal of the wireless charging signal;
• the controller is connected to the wireless receiving module, and is configured to transmit the charging indication signal to the wireless receiving module according to the state indication signal, and in response to the charging indication signal instructing the wireless receiving module to transmit the wireless charging signal to the first charging module, output a control signal to the first charging module to control the first charging module to receive the wireless charging signal from the wireless receiving module, charge the second charging module, and output an electrical signal;
• and
• the first charging module is connected to the controller and the second charging module, and is configured to, in response to receiving the control signal, receive the wireless charging signal from the wireless receiving module, charge the second charging module, and output the electrical signal;
• wherein the controller is further configured to:
• in response to the state indication signal indicating that the wireless charging device is in the wireless charging state, determine whether the wireless charging device is in a normal charging state by comparing the level signal included in the state indication signal with a threshold value;
• transmit the charging indication signal to the wireless receiving module to instruct the wireless receiving module to transmit the wireless charging signal to the first charging module, if the wireless charging device is in the normal charging state;
• otherwise
• transmit the charging indication signal to the wireless receiving module to instruct the wireless receiving module not to transmit the wireless charging signal to the first charging module.