Mobile terminal-based dual camera power supply control method, system and mobile terminal

A control system for providing power to dual cameras of a mobile terminal, the control system comprising:

• one or more processors;
• a memory;
• one or more program instructions, stored in the memory and executed by the one or more processors;
• wherein the one or more program instructions comprise:
• a connection control module, configured to respectively use different switches to connect a front camera and a back camera of the mobile terminal to a same circuit to supply power, wherein the front camera is connected to the same circuit through a first switch, the back camera is connected to the same circuit through a second switch, and the first switch and the second switch are respectively connected to a central processing unit and controlled by the central processing unit respectively connecting a front camera;
• a presetting module, configured to preset a default camera number and store the default camera number in a memory of the mobile terminal, and simultaneously preset a specific usage condition and a corresponding camera number and store a corresponding relationship in the memory of the mobile terminal;
• a detection and determination module, configured to determine whether a current condition is the specific usage condition when an operation instruction for activating a camera from a user or an application is detected, and to activate and power a camera corresponding to the corresponding camera number according to the corresponding camera number if the current condition is the specific usage condition;
• and
• a default activation module, configured to obtain the default camera number and activating and powering a camera corresponding to the default camera number if the current condition is not the specific usage condition.

A mobile terminal, comprising a front camera and a back camera, wherein the front camera and the back camera are connected to a same circuit respectively through a first switch and a second switch, and the first switch and the second switch are respectively connected to a central processing unit and controlled by the central processing unit;

• wherein the mobile terminal executes following operations:
• presetting a default camera number and storing the default camera number in a memory of the mobile terminal, and simultaneously presetting a specific usage condition and a corresponding camera number and storing a corresponding relationship in the memory of the mobile terminal;
• when an operation instruction for activating a camera from a user or an application is detected, determining whether a current condition is the specific usage condition;
• if the current condition is the specific usage condition, activating and powering a camera corresponding to the corresponding camera number according to the corresponding camera number;
• after determining a camera to be used, supplying power to the camera to be used through turning on one switch of the first switch and the second switch and turning off the other switch of the first switch and the second switch;
• and
• if the current condition is not the specific usage condition, obtaining the default camera number and activating and powering a camera corresponding to the default camera number.