Active optical fiber harness, PON network and vehicle-mounted communication system

Abstract

The invention relates to an active optical fiber harness, a PON network and a vehicle-mounted communication system. The active optical fiber harness includes: a harness body; the optical fiber is positioned in the wire harness main body; the electric connection interfaces are positioned at two ends of the wire harness main body and are connected with optical fibers; and the optical transceiver assembly is positioned in the wire harness main body and is connected with the electric connection interface through an optical fiber. According to the invention, the optical transceiver assembly is integrated in the active optical fiber harness, and the two ends of the active optical fiber harness can be connected with other structures through the electric connection interfaces, so that the communication reliability can be ensured without regular maintenance of the end face of the optical fiber; when the active optical fiber wire harness is used for a PON network and a vehicle-mounted communication system, an interface protocol and a standard of the current vehicle-mounted communication system can be directly used, the interface protocol and the standard do not need to be customized again, and the cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle-mounted communication, in particular to an active optical fiber harness, a PON network and a vehicle-mounted communication system. BACKGROUND

[0002] With the acceleration of the intelligentization and networking of automobiles, the vehicle-mounted communication system needs to meet the requirements of high-rate data transmission, high environmental adaptability and low operation and maintenance cost. PON (Passive Optical Network) is a popular wired access technology at present and is increasingly applied to the field of vehicle-mounted communication, but it also faces many core pain points, such as that the optical interface is easily affected by vehicle vibration to cause connection interruption, the fiber end face is easy to accumulate dirt and needs to be frequently maintained, the complete terminal device is large in size and difficult to adapt to the narrow space of the vehicle, and the generalization and economy of software and hardware compatibility are insufficient for rate upgrade.

[0003] The PON mainly includes an ONU (Optical Network Unit) and an OLT (Optical Line Terminal); the ONU mainly includes a Bosa, a Driver and a MAC; the Bosa, the Driver and the MAC all belong to the terminal device of the PON network; and the OLT is a local device of the PON. In the PON, the ONU and the OLT are connected through an optical fiber, and the two ends of the optical fiber are connected with the ONU and the OLT through optical connection interfaces. Since the optical fiber is used to connect communication, in order to ensure the reliability of communication, the end face of the optical fiber needs to be maintained regularly, and when the above PON is used for a vehicle-mounted communication system, a new vehicle-mounted optical interface protocol and standard need to be customized, which is high in cost. SUMMARY

[0004] Therefore, it is necessary to solve the above problems, and the present application provides an active optical fiber harness, a PON network and a vehicle-mounted communication system.

[0005] In a first aspect, the present application provides an active optical fiber harness, which comprises: a harness main body; an optical fiber located in the harness main body; an electrical connection interface located at both ends of the harness main body and connected with the optical fiber; a Bosa located in the harness main body and connected with the electrical connection interface through the optical fiber.

[0006] In some embodiments, the active optical fiber harness further comprises: The drive module is located inside the main body of the wire harness and is connected to the optical transceiver assembly and one of the electrical connection interfaces via optical fibers; the optical transceiver assembly is connected to another of the electrical connection interfaces via optical fibers.

[0007] In some embodiments, the electrical connection interface includes a Kakra interface.

[0008] Secondly, this application also provides a PON network, including: Central office equipment; Terminal equipment; An active fiber optic bundle is located between the central office equipment and the terminal equipment. The active fiber optic bundle includes: a bundle body, an optical fiber, an electrical connection interface, and an optical transceiver assembly. The optical fiber is located within the bundle body. The electrical connection interface is located at both ends of the bundle body and is connected to the optical fiber. The optical transceiver assembly is located within the bundle body and is connected to the electrical connection interface via the optical fiber. The active fiber optic bundle is connected to the central office equipment via the electrical connection interface at one end and to the terminal equipment via the electrical connection interface at the other end.

[0009] In some embodiments, the central office equipment includes an OLT, which is connected to one of the electrical connection interfaces; The terminal device includes a media access control module and a driver module; the driver module is located between the media access control module and another electrical connection interface, is connected to the media access control module, and is connected to the optical transceiver assembly via the electrical connection interface and the optical fiber.

[0010] In some embodiments, the active fiber optic bundle further includes a driving module located within the bundle body and connected via an optical fiber to the optical transceiver assembly and one of the electrical connection interfaces; the optical transceiver assembly is connected via an optical fiber to another of the electrical connection interfaces. The central office equipment includes an OLT, which is connected to one of the electrical connection interfaces; The terminal device includes a media access control module; the media access control module is connected to the electrical connection interface located on the side of the drive module away from the optical transceiver component.

[0011] In some embodiments, the electrical connection interface includes a Kakra interface.

[0012] Thirdly, this application also provides a vehicle-mounted communication system, which includes a PON network as described in the second aspect.

[0013] In the active fiber optic bundle, PON network, and vehicle communication system of this application, by integrating optical transceiver components into the active fiber optic bundle, the two ends of the active fiber optic bundle can be connected to other structures via electrical connection interfaces, ensuring communication reliability without the need for regular maintenance of the fiber end faces. When the active fiber optic bundle is used in the PON network and vehicle communication system, the interface protocols and standards of existing vehicle communication systems can be directly used without the need for customizing interface protocols and standards, greatly reducing costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural block diagram of an active optical fiber bundle provided in one embodiment of this application; Figure 2 This is a structural block diagram of an active optical fiber bundle provided in another embodiment of this application; Figure 3 This is a block diagram of a PON network provided in another embodiment of this application; Figure 4 This is a three-dimensional structural diagram of an active fiber bundle and terminal equipment in a PON network provided in another embodiment of this application. Figure 5 This is a block diagram of the PON network provided in another embodiment of this application; Figure 6 This is a three-dimensional structural diagram of an active fiber bundle and terminal equipment in a PON network provided in another embodiment of this application.

[0016] Figure descriptions: 1-Active fiber optic cable bundle; 2-Central office equipment; 3-Terminal equipment; 10-Cable bundle body; 101-Fiber optic cable; 102-Electrical connection interface; 103-Optical transceiver assembly; 104-Driver module; 301-Media access control module. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] In one embodiment, see Figure 1This application provides an active optical fiber bundle 1, which includes: a bundle body 10; an optical fiber 101 located within the bundle body 10; an electrical connection interface 102 located at both ends of the bundle body 10 and connected to the optical fiber 101; and an optical transceiver assembly (Bosa) 103 located within the bundle body 10 and connected to the electrical connection interface 102 via the optical fiber 101.

[0019] In this embodiment, the active fiber bundle 1 integrates the optical transceiver component 103 into the active fiber bundle 1. Both ends of the active fiber bundle 1 can be connected to other structures via electrical connection interfaces 102. This eliminates the need for regular maintenance of the fiber end faces, ensuring reliable communication. When the active fiber bundle 1 is used in PON networks and vehicle communication systems, the interface protocols and standards of current vehicle communication systems can be directly used without the need for customizing interface protocols and standards, greatly reducing costs.

[0020] In another embodiment, please refer to Figure 1 See Figure 2 This application provides an active optical fiber bundle 1, which may include: a bundle body 10; an optical fiber 101 located within the bundle body 10; an electrical connection interface 102 located at both ends of the bundle body 10 and connected to the optical fiber 101; an optical transceiver assembly (Bosa) 103 located within the bundle body 10 and connected to the electrical connection interface 102 via the optical fiber 101; a driving module 104 located within the bundle body 10 and connected to the optical transceiver assembly 103 and one of the electrical connection interfaces 102 via the optical fiber 101; and the optical transceiver assembly 103 connected to the other electrical connection interface 102 via the optical fiber 101.

[0021] In this embodiment, the active fiber bundle 1 integrates both the optical transceiver component 103 and the driving module 104 into the active fiber bundle 1. The two ends of the active fiber bundle 1 can be connected to other structures via electrical connection interfaces 102, ensuring communication reliability without the need for regular maintenance of the fiber end faces. When the active fiber bundle 1 is used in PON networks and vehicle communication systems, the interface protocols and standards of current vehicle communication systems can be directly used without the need for customizing interface protocols and standards, greatly reducing costs.

[0022] As an example, the electrical connection interface in the two embodiments above may include a Kakra interface. Kakra interfaces have mature high-frequency applications in automobiles. When the active fiber optic harness 1 of this application is applied to an in-vehicle communication system, it can be directly used by referencing existing interface protocols and standards, without the need to customize new in-vehicle interface protocols and standards.

[0023] As an example, the wire harness body 10 in the above embodiment is used to cover the optical fiber 101, the optical transceiver assembly 103 and the driving module 104; the wire harness body 10 may include, but is not limited to, any existing cable body, and is not specifically limited here.

[0024] In yet another embodiment, please refer to Figure 1 See Figure 3 and Figure 4 This application provides a PON network, which includes a central office equipment 2, a terminal equipment 3, and an active fiber optic bundle 1. The active fiber optic bundle 1 is located between the central office equipment 2 and the terminal equipment 3. The active fiber optic bundle 1 may include: a bundle body 10, an optical fiber 101, an electrical connection interface 102, and an optical transceiver assembly 103. The optical fiber 101 is located within the bundle body 10. The electrical connection interface 102 is located at both ends of the bundle body 10 and is connected to the optical fiber 101. The optical transceiver assembly 103 is located within the bundle body 10 and is connected to the electrical connection interface 102 via the optical fiber 101. The active fiber optic bundle 1 is connected to the central office equipment 2 via the electrical connection interface 102 at one end and to the terminal equipment 3 via the electrical connection interface 102 at the other end.

[0025] As an example, the central office equipment 2 may include an OLT, which is connected to one of the electrical connection interfaces 102; the terminal equipment 3 may include a media access control module 301 and a driver module 104; the driver module 104 is located between the media access control module 301 and another electrical connection interface 102, is connected to the media access control module 301, and is connected to the optical transceiver assembly 103 via the electrical connection interface 102 and the optical fiber 101.

[0026] Specifically, the connection rate of the electrical connection interface 102 is adaptive. The media access control module 301 of the terminal device 3 supports the required higher rate. When the media access control module 301 of the terminal device 3 needs to support a higher rate, it is only necessary to replace the active optical fiber bundle 1 with a cable of the corresponding high rate.

[0027] Specifically, in this embodiment, the active fiber optic bundle 1 in the PON network can be... Figure 1 And the active optical fiber bundle in the corresponding embodiment.

[0028] In the PON network of this embodiment, the optical transceiver component 103, the driver module 104, and the media access control module 301 can collectively constitute an ONU. However, in this embodiment, by integrating the optical transceiver component 103, which originally belonged to the terminal device 3, into the active optical fiber bundle 1, the two ends of the active optical fiber bundle 1 can be connected to the central office equipment 2 and the terminal device 3 via electrical connection interfaces 102. This eliminates the need for regular maintenance of the optical fiber end face, ensuring communication reliability. When the active optical fiber bundle 1 is used in PON networks and vehicle communication systems, the current interface protocols and standards of vehicle communication systems can be directly used without the need for re-customizing interface protocols and standards, greatly reducing costs.

[0029] In yet another embodiment, please refer to Figure 2 See Figure 5 and Figure 6 This application also provides a PON network. In this embodiment, the PON network includes: a central office device 2, a terminal device 3, and an active fiber optic bundle 1; the active fiber optic bundle 1 is located between the central office device 2 and the terminal device 3; the active fiber optic bundle 1 may include: a bundle body 10, an optical fiber 101, an electrical connection interface 102, an optical transceiver assembly 103, and a driving module 104; the optical fiber 101 is located within the bundle body 10; the electrical connection interface 102 is located at both ends of the bundle body 10 and connected to the optical fiber 101; the driving module 104 is located within the bundle body 10 and is connected to the optical transceiver assembly 103 and one of the electrical connection interfaces 102 via the optical fiber 101; the optical transceiver assembly 103 is connected to the other electrical connection interface 102 via the optical fiber 101; the active fiber optic bundle 1 is connected to the central office device 2 via one end of the electrical connection interface 102 and to the terminal device 3 via the other end of the electrical connection interface 102.

[0030] As an example, the central office equipment 2 may include an OLT, which is connected to an electrical connection interface 102; the terminal equipment 3 may include a media access control module 301, which is connected to the electrical connection interface 102 located on the side of the drive module 104 away from the optical transceiver assembly 103.

[0031] Specifically, in this embodiment, the active fiber optic bundle 1 in the PON network can be... Figure 2 And the active optical fiber bundle in the corresponding embodiment.

[0032] In the PON network of this embodiment, the optical transceiver component 103, the driver module 104, and the media access control module 301 can collectively constitute an ONU. However, in this embodiment, by integrating the optical transceiver component 103 and the driver module 104, which originally belong to the terminal device 3, into the active optical fiber bundle 1, the two ends of the active optical fiber bundle 1 can be connected to the central office equipment 2 and the terminal equipment 3 via electrical connection interfaces 102. This eliminates the need for regular maintenance of the optical fiber end face, ensuring communication reliability. When the active optical fiber bundle 1 is used in PON networks and vehicle communication systems, the current interface protocols and standards of vehicle communication systems can be directly used without the need for re-customizing interface protocols and standards, greatly reducing costs.

[0033] As an example, in the PON network of the two embodiments above, the electrical connection interface 102 may include a Kakra interface.

[0034] In yet another embodiment, this application provides a vehicle-mounted communication system, which may include, for example: Figure 3 and Figure 4 And the PON network described in the corresponding embodiments; for the specific structure of the PON network and the three-dimensional structural diagram and related description of the active fiber bundle and terminal equipment in the PON network, please refer to... Figure 3 and Figure 4 The corresponding embodiments are not described in detail hereafter.

[0035] In yet another embodiment, this application provides a vehicle-mounted communication system, which may include, for example: Figure 5 and Figure 6 And the PON network described in the corresponding embodiments; for the specific structure of the PON network and the three-dimensional structural diagram and related description of the active fiber bundle and terminal equipment in the PON network, please refer to... Figure 6 and Figure 6 The corresponding embodiments are not described in detail hereafter.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An active optical fiber bundle, characterized in that, include: Wiring harness body; The optical fiber is located within the main body of the wire bundle; Electrical connection interfaces are located at both ends of the wire harness body and are connected to the optical fiber; An optical transceiver assembly is located within the main body of the cable bundle and is connected to the electrical connection interface via the optical fiber.

2. The active optical fiber bundle according to claim 1, characterized in that, Also includes: The drive module is located inside the main body of the wire harness and is connected to the optical transceiver assembly and one of the electrical connection interfaces via optical fibers; the optical transceiver assembly is connected to another of the electrical connection interfaces via optical fibers.

3. The active optical fiber bundle according to claim 1 or 2, characterized in that, The electrical connection interface includes a Kakra interface.

4. A PON network, characterized in that, include: Central office equipment; Terminal equipment; An active optical fiber bundle is located between the central office equipment and the terminal equipment; The active fiber optic bundle includes: a bundle body, an optical fiber, an electrical connection interface, and an optical transceiver assembly; the optical fiber is located within the bundle body; the electrical connection interface is located at both ends of the bundle body and is connected to the optical fiber; the optical transceiver assembly is located within the bundle body and is connected to the electrical connection interface via the optical fiber; the active fiber optic bundle is connected to the local device via the electrical connection interface at one end and to the terminal device via the electrical connection interface at the other end.

5. The PON network according to claim 4, characterized in that, The central office equipment includes an OLT, which is connected to one of the electrical connection interfaces; The terminal device includes a media access control module and a driver module; the driver module is located between the media access control module and another electrical connection interface, is connected to the media access control module, and is connected to the optical transceiver assembly via the electrical connection interface and the optical fiber.

6. The PON network according to claim 4, characterized in that, The active fiber optic cable bundle further includes: a driving module located within the cable bundle body and connected to the optical transceiver assembly and an electrical connection interface via an optical fiber; the optical transceiver assembly is connected to another electrical connection interface via an optical fiber. The central office equipment includes an OLT, which is connected to one of the electrical connection interfaces; The terminal device includes a media access control module; the media access control module is connected to the electrical connection interface located on the side of the drive module away from the optical transceiver component.

7. The PON network according to any one of claims 4 to 6, wherein the electrical connection interface includes a Kakra interface.

8. A vehicle-mounted communication system, characterized in that, Includes the PON network as described in any one of claims 4 to 7.

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