Patent ID: 9577764
Date: 2017-02-21
CPC Classifications: G06F,G09C,H04B,H04L

Claim:
1. A quantum key distribution terminal, comprising: an electronics backboard, an optical transceiver, an electronics board, a power source, a network interface, a key application interface, a quantum optical fiber interface and a chassis shell; wherein the electronics backboard comprises a single-board interconnection interface, a high-speed photoelectric interface, a detector interface and a power source interface; the optical transceiver comprises a light source board, a light path component and a detector, wherein the light path component is connected to the light source board and the detector through an optical fiber pigtail and an optical fiber flange respectively; the electronics board is configured to perform system maintenance and management, quantum key distribution control, system access, key storage and application, and key post-processing; a space formed in the chassis shell is divided into two independent spaces by the electronics backboard, wherein the optical transceiver is placed in one space, the electronics board is placed in the other space, and the power source is placed in a vacancy in either space; the electronics backboard is connected to the electronics board through the single-board interconnection interface, connected to the power source and the light path component in the optical transceiver through the high-speed photoelectric interface, and connected to the detector in the optical transceiver through the detector interface, wherein the electronics backboard is configured to provide signal and data exchange between the electronics board and the optical transceiver, and provide signal and data exchange between boards of the electronics board if the electronics board comprises a plurality of boards; the power source interface is connected to the power source and takes power from the power source, supplying the power for the electronics backboard and other devices in the terminal connected to the electronics backboard; the network interface, the key application interface and the quantum optical fiber interface are installed on the chassis shell, and are configured to perform information exchange with an external device; the network interface is connected to the electronics board, and is configured for the quantum key distribution terminal to perform data exchange with an external device; the key application interface is connected to the electronics board, and is configured to provide a quantum key application for an external communications terminal connected to the quantum key distribution terminal; and the quantum optical fiber interface is connected to the light path component, and is configured to transmit an optical signal between multiple quantum key distribution terminals.