CN213072663U - Data center internal communication system based on free space optical communication - Google Patents
Data center internal communication system based on free space optical communication Download PDFInfo
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- CN213072663U CN213072663U CN202021832495.1U CN202021832495U CN213072663U CN 213072663 U CN213072663 U CN 213072663U CN 202021832495 U CN202021832495 U CN 202021832495U CN 213072663 U CN213072663 U CN 213072663U
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Abstract
The utility model discloses a data center internal communication system based on free space optical communication, including a plurality of server frames, each server frame has a plurality of servers therein, a pair of receiver and transmitter are installed at the top of the server frame, a plurality of servers in the server frame are connected with corresponding receiver and transmitter communication through physical connection; the transmitter further comprises: the optical attenuator comprises an electro-optical converter, a variable optical attenuator, a first collimating mirror and a first direction selective reflector; the receiver further comprises: a second direction selection reflector, a second collimating mirror, and a photoelectric converter. The utility model discloses reduce the optical fiber connection between the inside server frame of data center, practiced thrift valuable core switch resource, reduced the inside multilayer of data center and forwarded the time delay of bringing, made things convenient for the level extension.
Description
Technical Field
The utility model relates to a data center's communication system field especially relates to a data center intercom system.
Background
In order to meet the increasing communication bandwidth requirement inside the data center and reduce the energy consumption of the data center, the optical communication technology has attracted attention. Conventional data center network architectures are typically three layers: access, aggregation and core layers, which consist of core, aggregation and access switches, which are usually located on top of a rack, so they are also called tors (top of rack), which are physically connected to servers. The aggregation switch is connected with the access switch, and divides the servers into different PODs (points of delivery) according to physical positions. The convergence layer consists of a plurality of repeated PODs. Each POD includes a server, storage and network devices to perform one or more services. The core switch provides high-speed forwarding for packets entering and exiting the data center, provides connectivity for a plurality of convergence layer PODs, and comprises the core switch, an egress router and other equipment. With the rise of Cloud computing, big data and the like, a great amount of traffic is generated between servers of a data center, and according to Cisco Global Cloud Index: Forecast and method, 2015-. The introduction of virtual machines has enabled the deployment of applications to be distributed more and more, with larger and larger east-west traffic that needs to be handled efficiently and with predictable low latency. The bandwidth of the traditional data center internal network three-layer architecture becomes a bottleneck, and the delay from server to server varies with the traffic path.
Disclosure of Invention
The utility model aims at providing a data center intercom system based on free space optical communication, this data center intercom system have reduced the fiber connection between the inside server frame of data center, have practiced thrift valuable core switch resource, have reduced the inside multilayer of data center and have forwardded the time delay of bringing, make things convenient for the horizontal extension.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a data center internal communication system comprises a plurality of server racks, wherein each server rack is provided with a plurality of servers, a pair of receivers and transmitters are installed at the tops of the server racks, the servers in the server racks are in communication connection with the corresponding receivers and transmitters through physical connection, the transmitter in one server rack in the server racks transmits parallel optical signals to a free space atmosphere channel, and the receivers in at least one server rack in the rest server racks receive the parallel optical signals from the free space atmosphere channel;
the transmitter further comprises:
an electro-optical converter modulating a data transmission signal from the server into a transmission optical signal;
a variable optical attenuator for adjusting the transmission power of the transmission optical signal from the electro-optical converter;
a first collimating mirror for modulating the emitted optical signal from the variable optical attenuator into a parallel optical signal;
the first direction selection reflector is used for adjusting the transmission direction of the parallel optical signals from the first collimating mirror so as to transmit the parallel optical signals to a receiver corresponding to the appointed server rack through a free space atmospheric channel;
the receiver further comprises:
a second direction selective reflector for adjusting direction to receive parallel optical signals transmitted from the transmitter through the free space atmospheric channel;
a second collimating mirror for modulating the parallel optical signal from the second direction selective mirror into a received optical signal;
and the photoelectric converter modulates the received light signal from the second collimating mirror into a data received signal.
The further improved scheme in the technical scheme is as follows:
in the above scheme, the electro-optical converter and the photoelectric converter are both photoelectric conversion transceiver modules.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the utility model discloses data center intercom system based on free space optical communication, it solves the problem that data center internal network faces, has reduced the inside multilayer of data center and has forwardded the time delay of bringing and the optical fiber connection between the inside server frame of data center, has practiced thrift valuable core switch resource, makes things convenient for horizontal expansion, can satisfy the demand of new services such as distributed computation and big data, and data transmission rate is high.
Drawings
Fig. 1 is a schematic structural diagram of the data center internal communication system of the present invention;
fig. 2 is a schematic diagram of the transmitter schematic structure of the data center internal communication system of the present invention;
fig. 3 is a schematic diagram of the receiver principle structure of the data center intercom system of the present invention.
In the above drawings: 1. a server rack; 101. a server; 2. a receiver; 3. a transmitter; 4. an electro-optical converter; 5. a variable optical attenuator; 6. a first collimating mirror; 7. a first direction selection mirror; 8. a second direction selection mirror; 9. a second collimating mirror; 10. a photoelectric converter.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a data center internal communication system based on free space optical communication comprises a plurality of server racks 1, wherein each server rack 1 is internally provided with a plurality of servers 101, a pair of receivers 2 and transmitters 3 are installed at the tops of the server racks 1, the plurality of servers 101 in the server racks 1 are in communication connection with the corresponding receivers 2 and transmitters 3 through physical connection, the transmitter 3 in one server rack 1 in the plurality of server racks 1 transmits parallel optical signals to a free space atmosphere channel, and the receiver 2 in the server rack 1 receives the parallel optical signals from the free space atmosphere channel;
the transmitter 3 further comprises:
an electro-optical converter 4 modulating a data transmission signal from the server 101 into a transmission optical signal;
a variable optical attenuator 5 for adjusting the transmission power of the transmission optical signal from the electro-optical converter 4;
a first collimating mirror 6 for modulating the emitted optical signal from the variable optical attenuator 5 into a parallel optical signal;
a first direction selection mirror 7 for adjusting the transmission direction of the parallel optical signal from the first collimating mirror 6 so as to transmit the parallel optical signal to the receiver 2 corresponding to the designated server rack 1 via the free space atmospheric channel;
the receiver 2 further comprises:
a second direction selective mirror 8 for adjusting the direction to receive the parallel optical signal transmitted through the free space atmospheric channel from the transmitter 3;
a second collimator mirror 9 for modulating the parallel optical signal from the second direction selective mirror 8 into a received optical signal;
the photoelectric converter 10 modulates the received light signal from the second collimator lens 9 into a data received signal.
Example 2: a data center internal communication system based on free space optical communication comprises a plurality of server racks 1, wherein each server rack 1 is internally provided with a plurality of servers 101, a pair of receivers 2 and transmitters 3 are installed at the tops of the server racks 1, the plurality of servers 101 in the server racks 1 are in communication connection with the corresponding receivers 2 and transmitters 3 through physical connection, the transmitter 3 in one server rack 1 in the plurality of server racks 1 transmits parallel optical signals to a free space atmosphere channel, and the receivers 2 in at least one server rack 1 in the rest server racks 1 receive the parallel optical signals from the free space atmosphere channel;
the transmitter 3 further comprises:
an electro-optical converter 4 modulating a data transmission signal from the server 101 into a transmission optical signal;
a variable optical attenuator 5 for adjusting the transmission power of the transmission optical signal from the electro-optical converter 4;
a first collimating mirror 6 for modulating the emitted optical signal from the variable optical attenuator 5 into a parallel optical signal;
a first direction selection mirror 7 for adjusting the transmission direction of the parallel optical signal from the first collimating mirror 6 so as to transmit the parallel optical signal to the receiver 2 corresponding to the designated server rack 1 via the free space atmospheric channel;
the receiver 2 further comprises:
a second direction selective mirror 8 for adjusting the direction to receive the parallel optical signal transmitted through the free space atmospheric channel from the transmitter 3;
a second collimator mirror 9 for modulating the parallel optical signal from the second direction selective mirror 8 into a received optical signal;
the photoelectric converter 10 modulates the received light signal from the second collimator lens 9 into a data received signal.
The electro-optical converter 4 and the photoelectric converter 10 are both photoelectric conversion transceiver modules.
When the data center internal communication system based on free space optical communication is adopted, the problems faced by a data center internal network are solved, delay caused by multilayer forwarding in the data center and optical fiber connection between server racks in the data center are reduced, precious core switch resources are saved, horizontal expansion is facilitated, the requirements of new services such as distributed computation and big data can be met, and the data transmission rate is high.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (2)
1. A data center internal communication system based on free space optical communication is characterized in that: the system comprises a plurality of server racks (1), wherein a plurality of servers (101) are arranged in each server rack (1), a pair of receivers (2) and transmitters (3) are mounted at the tops of the server racks (1), the plurality of servers (101) in the server racks (1) are in communication connection with the corresponding receivers (2) and transmitters (3) through physical connection, the transmitter (3) in one server rack (1) in the plurality of server racks (1) transmits parallel optical signals to a free space atmosphere channel, and the receivers (2) in at least one server rack (1) in the rest server racks (1) receive the parallel optical signals from the free space atmosphere channel;
the transmitter (3) further comprises:
an electro-optical converter (4) for modulating a data transmission signal from the server (101) into a transmission optical signal;
a variable optical attenuator (5) for adjusting the transmission power of the transmission optical signal from the electro-optical converter (4);
a first collimating mirror (6) for modulating the emitted optical signal from the variable optical attenuator (5) into a parallel optical signal;
the first direction selection reflector (7) is used for adjusting the transmission direction of the parallel optical signals from the first collimating mirror (6) so as to transmit the parallel optical signals to the receiver (2) corresponding to the appointed server rack (1) through a free space atmosphere channel;
the receiver (2) further comprises:
a second direction selective mirror (8) for directionally receiving parallel optical signals transmitted through the free space atmospheric channel from the transmitter (3);
a second collimator mirror (9) for modulating the parallel optical signal from the second direction selection mirror (8) into a received optical signal;
and an optical-to-electrical converter (10) for converting the received light signal from the second collimator lens (9) into a data reception signal.
2. The free-space optical communication-based data center intercom system as claimed in claim 1 wherein: the electro-optical converter (4) and the photoelectric converter (10) are both photoelectric conversion transceiving modules.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021832495.1U CN213072663U (en) | 2020-08-28 | 2020-08-28 | Data center internal communication system based on free space optical communication |
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| CN202021832495.1U CN213072663U (en) | 2020-08-28 | 2020-08-28 | Data center internal communication system based on free space optical communication |
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Effective date of registration: 20240822 Address after: Room 502, Building 5, 1333 Binhe Road, Huqiu District, Suzhou City, Jiangsu Province 215004 Patentee after: You Shanhong Country or region after: China Address before: 215006 6-306, Lvjun, Langshi xiangmen, Gusu District, Suzhou City, Jiangsu Province Patentee before: You Shanhong Country or region before: China Patentee before: Zhang Peng |