Power supply method, apparatus, and system

1. A power supply method, comprising:

detecting, by a supply device, a working state of a terminal in a home network, wherein the terminal accesses the home network through a coaxial cable; and

controlling, by the supply device, power supply to an optical access equipment according to the working state, wherein the optical access equipment is arranged to implement access of a passive optical fiber network to the home network;

wherein after controlling power supply to the optical access equipment, the method further comprises: separating a Radio Frequency communication signal from a voltage signal for power supply to the optical access equipment and/or the terminal by high-pass filtering, wherein the Radio Frequency communication signal is a data communication signal for the optical access equipment and the terminal;

wherein the power supply device is capable of providing forward power supply to the terminal and providing reverse power supply to the optical access equipment;

wherein when the working state indicates power-on of the terminal or registration of the terminal, controlling power supply to the optical access equipment according to the working state comprises: starting reverse power supply to the optical access equipment; and

when the working state indicates dormancy of the terminal or power-off of the terminal, controlling power supply to the optical access equipment according to the working state comprises: terminating reverse power supply to the optical access equipment.

2. The method according to claim 1 , wherein the working state comprises at least one of the following: power-on of the terminal, registration of the terminal, dormancy of the terminal and power-off of the terminal.

3. The method according to claim 1 , wherein after detecting the working state of the terminal in the home network, the method further comprises:

receiving a triggering instruction of a user; and

controlling power supply to the terminal according to the working state under triggering by the triggering instruction.

4. The method according to claim 3 , wherein, processes of controlling power supply to the terminal and controlling power supply to the optical access equipment are mutually independent.

5. The method according to claim 4 , wherein mutual independence of the process for controlling power supply to the terminal and the process for controlling power supply to the optical access equipment is implemented in a following manner:

controlling power supply to the optical access equipment through a first branch circuit; and

controlling power supply to the terminal through a second branch circuit, wherein the first branch circuit and the second branch circuit are two branch circuits of a voltage division circuit.

6. A power supply device, comprising:

a computer; and

a non-transitory computer readable storage medium storing instructions that, when executed by the computer, cause the computer to perform steps comprising:

detecting a working state of a terminal in a home network, wherein the terminal accesses the home network through a coaxial cable;

controlling power supply to an optical access equipment according to the working state, wherein the optical access equipment is arranged to implement access of a passive optical fiber network to the home network; and

separating a Radio Frequency communication signal from a voltage signal for power supply to the optical access equipment and/or the terminal by high-pass filtering, wherein the Radio Frequency communication signal is a data communication signal for the optical access equipment and the terminal;

wherein the power supply device is capable of providing forward power supply to the terminal and providing reverse power supply to the optical access equipment; wherein the steps further comprise:

when the working state indicates power-on of the terminal or registration of the terminal, starting reverse power supply to the optical access equipment; and

when the working state indicates dormancy of the terminal or power-off of the terminal, terminating reverse power supply to the optical access equipment.

7. The device according to claim 6 , wherein the steps further comprise detecting the working state of the terminal in the home network when the working state comprises at least one of the following: power-on of the terminal, registration of the terminal, dormancy of the terminal and power-off of the terminal.

8. The device according to claim 6 , wherein the steps further comprise: receiving a triggering instruction of a user; and

controlling power supply to terminal equipment according to the working state under triggering by the triggering instruction.

9. A power supply system, comprising optical access equipment and a home network terminal, and further comprising: a reverse power supply device, connected between the optical access equipment and the home network terminal and arranged to detect a working state of the home network terminal in a home network and control power supply to the optical access equipment according to the working state, wherein the home network terminal accesses the home network through a coaxial cable, and the optical access equipment is arranged to implement access of a passive optical fiber network to the home network;

wherein the reverse power supply device separates a Radio Frequency communication signal from a voltage signal for power supply to the optical access equipment and/or the home network terminal by high-pass filtering, wherein the Radio Frequency communication signal is a data communication signal for the optical access equipment and the home network terminal;

wherein the reverse power supply device is capable of providing forward power supply to the home network terminal and providing reverse power supply to the optical access equipment;

wherein when the working state indicates power-on of the home network terminal or registration of the home network terminal, the reverse power supply device starts reverse power supply to the optical access equipment; and

when the working state indicates dormancy of the home network terminal or power-off of the home network terminal, the reverse power supply device terminates reverse power supply to the optical access equipment.