Photoelectric conversion module, optical cable, vehicle-mounted detection equipment, central control host and automobile

Abstract

The invention provides a photoelectric conversion module, an optical cable, vehicle-mounted detection equipment, a central control host and an automobile, and relates to the technical field of photoelectricity. The photoelectric conversion module comprises a sending assembly and / or a receiving assembly; the transmitting assembly comprises a transmitting end and a light splitting chip, the transmitting end is configured to convert a serialized coaxial signal into a high-speed optical signal and a low-speed optical signal, and the light splitting chip is located on an emergent light path of the transmitting end and is configured to spatially separate and emit the high-speed optical signal and the low-speed optical signal; the receiving assembly comprises a receiving end and an optical combination chip, and the receiving end is configured to restore the serialized optical signal into the coaxial signal; and the light combining chip is arranged on an incident light path of the receiving end and is configured to combine the high-speed optical signal and the low-speed optical signal into the serialized optical signal. According to the embodiment of the invention, the transmission rate and capacity are improved, the cost, the signal attenuation and the influence on radiation and interference are reduced, and the communication distance is increased.

Description

Technical Field

[0001] The present invention relates to the field of optoelectronic technology, and in particular to a photoelectric conversion module, an optical cable, a vehicle-mounted detection device, a central control host and a car. Background Art

[0002] With the development of intelligent vehicles, the demand for data transmission and processing in vehicle Ethernet is increasing. As the transmission rate increases from 100Mbps to 1Gbps and then to 10Gbps, the problems of excessive attenuation in traditional copper cables will become more and more obvious. As the transmission rate increases, the requirements for cable radiation resistance and anti-interference are also getting higher and higher. The communication distance of traditional cables is short and the cost is high, which cannot meet the requirements of 10G Ethernet data transmission. Summary of the invention

[0003] The embodiments of the present invention provide a photoelectric conversion module, an optical cable, an on-board detection device, a central control host and a car, which improve the transmission rate and capacity, reduce the cost, signal attenuation, and the impact on radiation and interference, and increase the communication distance.

[0004] In a first aspect, an embodiment of the present invention provides a photoelectric conversion module, including a sending component and / or a receiving component;

[0005] The transmitting component includes a transmitting end and a splitter chip, wherein the transmitting end is configured to convert the serialized coaxial signal into a high-speed optical signal and a low-speed optical signal, and the splitter chip is located on the outgoing optical path of the transmitting end and is configured to spatially separate the high-speed optical signal and the low-speed optical signal for outgoing transmission;

[0006] The receiving component includes a receiving end and a light combining chip, the receiving end is configured to restore the serialized optical signal to the coaxial signal; the light combining chip is arranged on the incident optical path of the receiving end, and is configured to combine the high-speed optical signal and the low-speed optical signal into the serialized optical signal.

[0007] In a second aspect, an embodiment of the present invention provides a vehicle-mounted Ethernet optical-electrical hybrid optical cable, comprising:

[0008] at least two optical fibers, including a first type of optical fiber and a second type of optical fiber, wherein the first type of optical fiber is configured to transmit a high-speed optical signal, and the second type of optical fiber is configured to transmit a low-speed optical signal;

[0009] At least two cables, including a power cable and a ground cable;

[0010] The outer sheath is arranged on the periphery of the at least two optical fibers and the at least two electrical cables.

[0011] Optionally, the number of the first type of optical fibers is the same as the number of the second type of optical fibers.

[0012] Optionally, the number of the power lines and the ground lines is the same.

[0013] Optionally, it further comprises a photoelectric conversion module, wherein the photoelectric conversion module comprises a sending component and / or a receiving component, and the sending component and / or the receiving component are connected to the end of the optical fiber;

[0014] The sending component includes a sending end and a splitter chip, the sending end is configured to convert the serialized coaxial signal into a high-speed optical signal and a low-speed optical signal, the splitter chip is located on the outgoing optical path of the sending end, and is configured to transmit the high-speed optical signal to the first type of optical fiber, and transmit the low-speed optical signal to the second type of optical fiber;

[0015] The receiving component includes a receiving end and a light combining chip, the receiving end is configured to restore the serialized optical signal to the coaxial signal; the light combining chip is arranged on the incident optical path of the receiving end, and is configured to combine the high-speed optical signal transmitted by the first type of optical fiber and the low-speed optical signal transmitted by the second type of optical fiber into the serialized optical signal.

[0016] In a third aspect, an embodiment of the present invention provides a vehicle-mounted detection device, comprising the photoelectric conversion module as described in the first aspect.

[0017] Optionally, a camera and / or radar are included.

[0018] In a fourth aspect, an embodiment of the present invention provides a central control host, comprising the photoelectric conversion module as described in the first aspect.

[0019] In a fifth aspect, an embodiment of the present invention provides a car, comprising any one of the following:

[0020] The photoelectric conversion module as described in the first aspect;

[0021] The vehicle-mounted Ethernet optical-electric hybrid optical cable as described in the second aspect;

[0022] The vehicle-mounted detection device as described in the third aspect;

[0023] And the central control host as described in the fourth aspect.

[0024] An embodiment of the present invention provides an optoelectronic conversion module, which includes a transmitting component and / or a receiving component. The transmitting component includes a splitter chip, which spatially separates and emits a high-speed optical signal and a low-speed optical signal that are spatially combined. The receiving component includes a light combining chip, which spatially combines and emits a high-speed optical signal and a low-speed optical signal that are spatially separated. As a result, optical signals (including high-speed optical signals and low-speed optical signals) can be used to transmit data, improve transmission rate and capacity, reduce costs, signal attenuation, and the impact on radiation and interference, and increase communication distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a photoelectric conversion module provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of another photoelectric conversion module provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of another photoelectric conversion module provided by an embodiment of the present invention;

[0028] Figure 4 A cross-sectional view of an in-vehicle Ethernet optical-electrical hybrid optical cable provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of an in-vehicle Ethernet optical-electrical hybrid optical cable provided by an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of a vehicle-mounted detection device provided by an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of a central control host provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] Figure 1 A schematic diagram of a photoelectric conversion module provided by an embodiment of the present invention, referring to Figure 1The photoelectric conversion module 100 includes a transmitting component 110. The transmitting component 110 includes a transmitting end 113 and a splitter chip 114. The transmitting end 113 is configured to convert the serialized coaxial signal into a high-speed optical signal and a low-speed optical signal. The splitter chip 114 is located on the outgoing optical path of the transmitting end 113, and the splitter chip 114 is configured to separate the high-speed optical signal and the low-speed optical signal in space. The coaxial signal can be, for example, an electrical signal emitted by a vehicle-mounted detection device or a central control host.

[0034] Figure 2 A schematic diagram of another photoelectric conversion module provided by an embodiment of the present invention, referring to Figure 2 , the optoelectronic conversion module 100 includes a receiving component 120. The receiving component 120 includes a receiving end 122 and a light combining chip 121. The receiving end 122 is configured to restore the serialized optical signal to a coaxial signal. The coaxial signal may be, for example, an electrical signal received by a vehicle-mounted detection device or a central control host. The light combining chip 121 is disposed on the incident optical path of the receiving end 122, and the light combining chip 121 is configured to combine a high-speed optical signal and a low-speed optical signal into a serialized optical signal. The serialized optical signal may, for example, include a high-speed optical signal and a low-speed optical signal that are arranged in sequence.

[0035] Figure 3 Schematic diagram of another photoelectric conversion module provided by an embodiment of the present invention, the photoelectric conversion module 100 includes a sending component 110 and a receiving component 120. For a device including the photoelectric conversion module 100, according to actual needs, the above Figure 1-Figure 3 A photoelectric conversion module 100.

[0036] The embodiment of the present invention provides an optoelectronic conversion module 100, which includes a transmitting component 110 and / or a receiving component 120. The transmitting component 110 includes a spectroscopic chip 114, which spatially separates and emits a high-speed optical signal and a low-speed optical signal that are spatially combined. The receiving component 120 includes a light-combining chip 121, which spatially combines and emits a high-speed optical signal and a low-speed optical signal that are spatially separated. As a result, optical signals (including high-speed optical signals and low-speed optical signals) can be used to transmit data, improve transmission rate and capacity, reduce costs, signal attenuation, and the impact on radiation and interference, and increase communication distance.

[0037] For example, reference Figure 1 The transmitting end 113 includes a laser driver 111 and a laser 112. The laser driver 111 and the laser 112 are electrically connected. The laser driver 111 is configured to drive the laser 112 to emit a laser beam. The laser 112 and the optical splitter chip 114 can be connected via an optical fiber, or spatial light can be transmitted between the laser 112 and the optical splitter chip 114.

[0038] For example, reference Figure 2 The optical splitter chip 114 and the transmitting end 113 may be connected via an optical fiber, or spatial light may be transmitted between the optical splitter chip 114 and the transmitting end 113. The transmitting end 113 may include, for example, a photosensitive element such as a photodiode, which will not be described in detail herein.

[0039] In the known technology, the high-speed optical signal and the low-speed optical signal are combined in space, and the high-speed optical signal and the low-speed optical signal are overlapped in space. One optical fiber in the optical cable transmits both the high-speed optical signal and the low-speed optical signal.

[0040] Figure 4 A cross-sectional view of a vehicle-mounted Ethernet optical-electrical hybrid optical cable provided by an embodiment of the present invention, referring to Figure 4 The in-vehicle Ethernet optical-electric hybrid cable includes at least two optical fibers 210, at least two cables 220 and an outer sheath 230. The at least two optical fibers 210 include a first type of optical fiber 211 and a second type of optical fiber 212. The first type of optical fiber 211 is configured to transmit a high-speed optical signal, and the second type of optical fiber 212 is configured to transmit a low-speed optical signal. The at least two cables 220 include a power line 221 and a ground line 222. The outer sheath 230 is arranged on the periphery of the at least two optical fibers 210 and the at least two cables 220. The outer sheath 230 wraps the at least two optical fibers 210 and the at least two cables 220 to protect the optical fibers 210 and the cables 220.

[0041] The embodiment of the present invention provides an in-vehicle Ethernet optical-electric hybrid optical cable, in which the optical fiber 210 is adapted to the optical-electric conversion module 100 in the above embodiment, and the first type of optical fiber 211 and the second type of optical fiber 212 are respectively connected to different exit ends of the optical splitter chip 114. Alternatively, the first type of optical fiber 211 and the second type of optical fiber 212 are respectively connected to different incident ends of the optical combining chip 121. Thus, optical signals (including high-speed optical signals and low-speed optical signals) can be used to transmit data, improve transmission rate and capacity, reduce costs, signal attenuation, and the impact on radiation and interference, and increase communication distance.

[0042] Optionally, refer to Figure 4 , the number of the first type optical fibers 211 is the same as the number of the second type optical fibers 212. In the vehicle Ethernet optical-electrical hybrid optical cable, the first type optical fiber 211 is configured to transmit high-speed optical signals, and the second type optical fiber 212 is configured to transmit low-speed optical signals. The number of the first type optical fibers 211 is the same as the number of the second type optical fibers 212, so that the number of optical fibers transmitting high-speed optical signals is the same as the number of optical fibers transmitting low-speed optical signals.

[0043] For example, reference Figure 4, the number of the first type optical fibers 211 and the number of the second type optical fibers 212 are 3. In other implementations, the number of the first type optical fibers 211 and the number of the second type optical fibers 212 may also be 1, 2, or 4. The embodiment of the present invention does not limit the number of the first type optical fibers 211 and the number of the second type optical fibers 212.

[0044] Optionally, refer to Figure 4 , the number of power lines 221 and ground lines 222 is the same. In the vehicle-mounted Ethernet optical-electrical hybrid optical cable, the power line 221 is configured to transmit a power signal, and the ground line 222 is configured to transmit a ground signal.

[0045] For example, reference Figure 4 , the number of power lines 221 and the number of ground lines 222 are 2. In other implementations, the number of power lines 221 and the number of ground lines 222 may also be 1, 3, or 4. The embodiment of the present invention does not limit the number of power lines 221 and the number of ground lines 222.

[0046] For example, reference Figure 4 The power line 221 includes a PET sheath 223. The power line 221 may also include a tinned copper wire disposed in the PET sheath 223.

[0047] In one embodiment, the vehicle Ethernet optical / electrical hybrid optical cable 200 includes an optical cable body 240. The optical cable body 240 includes at least two optical fibers 210, at least two cable wires 220, and an outer sheath 230. The vehicle Ethernet optical / electrical hybrid optical cable 200 does not include an optical / electrical conversion module 100.

[0048] In another embodiment, the optoelectronic conversion module 100 may also be integrated into the vehicle-mounted Ethernet optoelectronic hybrid optical cable 200 . Figure 5 A schematic diagram of a vehicle-mounted Ethernet optical-electric hybrid optical cable provided by an embodiment of the present invention, referring to Figure 1-Figure 5, the vehicle-mounted Ethernet optoelectronic hybrid optical cable 200 includes an optical cable body 240 and the optoelectronic conversion module 100 in the above embodiment. That is, the vehicle-mounted Ethernet optoelectronic hybrid optical cable also includes an optoelectronic conversion module, and the optoelectronic conversion module includes a sending component and / or a receiving component, and the sending component and / or the receiving component are connected to the end of the optical fiber. The sending component includes a sending end and a splitter chip, and the sending end is configured to convert the serialized coaxial signal into a high-speed optical signal and a low-speed optical signal. The splitter chip is located on the outgoing optical path of the sending end, and is configured to transmit the high-speed optical signal to the first type of optical fiber and the low-speed optical signal to the second type of optical fiber. The receiving component includes a receiving end and a light combining chip, and the receiving end is configured to restore the serialized optical signal to a coaxial signal; the light combining chip is arranged on the incident optical path of the receiving end, and is configured to combine the high-speed optical signal transmitted by the first type of optical fiber and the low-speed optical signal transmitted by the second type of optical fiber into a serialized optical signal.

[0049] For example, reference Figure 4 and Figure 5 , one of the two optoelectronic conversion modules 100 connected to the end of the optical cable body 240 (including the optical fiber 210) is a sending component 110, and the other is a receiving component 120. Alternatively, both of the two optoelectronic conversion modules 100 connected to the end of the optical cable body 240 (including the optical fiber 210) include both the sending component 110 and the receiving component 120. In other embodiments, the optoelectronic conversion module 100 can be provided only at one end of the optical cable body 240 (including the optical fiber 210), and the optoelectronic conversion module 100 is not provided at the other end of the optical cable body 240 (including the optical fiber 210).

[0050] Figure 6 A schematic diagram of a vehicle-mounted detection device provided by an embodiment of the present invention, referring to Figure 6 The vehicle-mounted detection device 300 includes the optoelectronic conversion module 100 in the above embodiment. Therefore, at least one end of the vehicle-mounted Ethernet optoelectronic hybrid optical cable 200 may not include the optoelectronic conversion module 100.

[0051] Optionally, the vehicle-mounted detection device 300 includes a camera and / or a radar. The vehicle-mounted detection device 300 is configured to detect objects outside the vehicle by photographing or scanning, and obtain information about the objects outside the vehicle.

[0052] Figure 7 A schematic diagram of a central control host provided by an embodiment of the present invention. Figure 7, the central control host 400 includes the optoelectronic conversion module 100 in the above embodiment. Therefore, at least one end of the vehicle-mounted Ethernet optoelectronic hybrid optical cable 200 may not include the optoelectronic conversion module 100. The central control host 400 is configured to process the information of the external object obtained by the vehicle-mounted detection device 300. The central control host 400 can also send instructions to the vehicle-mounted detection device 300 to control the working state of the vehicle-mounted detection device 300.

[0053] An embodiment of the present invention further provides a car, which includes any one of the following: the optoelectronic conversion module 100 in the above embodiment, the vehicle-mounted Ethernet optoelectronic hybrid optical cable 200 in the above embodiment, the vehicle-mounted detection device 300 in the above embodiment, and the central control host 400 in the above embodiment.

[0054] Exemplarily, one end of the vehicle-mounted Ethernet optical / electrical hybrid cable 200 is connected to the vehicle-mounted detection device 300 , and the other end of the vehicle-mounted Ethernet optical / electrical hybrid cable 200 is connected to the central control host 400 .

[0055] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A photoelectric conversion module, characterized in that: including a sending component and / or a receiving component; The transmitting component includes a transmitting end and a splitter chip, wherein the transmitting end is configured to convert the serialized coaxial signal into a high-speed optical signal and a low-speed optical signal, and the splitter chip is located on the outgoing optical path of the transmitting end and is configured to spatially separate the high-speed optical signal and the low-speed optical signal for outgoing transmission; The receiving component includes a receiving end and a light combining chip, the receiving end is configured to restore the serialized optical signal to the coaxial signal; the light combining chip is arranged on the incident optical path of the receiving end, and is configured to combine the high-speed optical signal and the low-speed optical signal into the serialized optical signal.

2. A vehicle-mounted Ethernet optical-electrical hybrid optical cable, characterized in that: include: at least two optical fibers, including a first type of optical fiber and a second type of optical fiber, wherein the first type of optical fiber is configured to transmit a high-speed optical signal, and the second type of optical fiber is configured to transmit a low-speed optical signal; At least two cables, including a power cable and a ground cable; The outer sheath is arranged on the periphery of the at least two optical fibers and the at least two electrical cables.

3. The vehicle-mounted Ethernet optical-electrical hybrid optical cable according to claim 2, characterized in that: The number of the first type of optical fibers is the same as the number of the second type of optical fibers.

4. The vehicle-mounted Ethernet optical-electrical hybrid optical cable according to claim 2, characterized in that: The number of the power lines and the number of the ground lines are the same.

5. The vehicle-mounted Ethernet optical-electrical hybrid optical cable according to claim 2, characterized in that: It also includes a photoelectric conversion module, which includes a sending component and / or a receiving component, and the sending component and / or the receiving component are connected to the end of the optical fiber; The sending component includes a sending end and a splitter chip, the sending end is configured to convert the serialized coaxial signal into a high-speed optical signal and a low-speed optical signal, the splitter chip is located on the outgoing optical path of the sending end, and is configured to transmit the high-speed optical signal to the first type of optical fiber, and transmit the low-speed optical signal to the second type of optical fiber; The receiving component includes a receiving end and a light combining chip, the receiving end is configured to restore the serialized optical signal to the coaxial signal; the light combining chip is arranged on the incident optical path of the receiving end, and is configured to combine the high-speed optical signal transmitted by the first type of optical fiber and the low-speed optical signal transmitted by the second type of optical fiber into the serialized optical signal.

6. A vehicle-mounted detection device, characterized in that: It comprises the photoelectric conversion module as claimed in claim 1.

7. The vehicle-mounted detection device according to claim 6, characterized in that: Includes cameras and / or radar.

8. A central control host, characterized in that: It comprises the photoelectric conversion module as claimed in claim 1.

9. A car, characterized in that: Includes any of the following: The photoelectric conversion module according to claim 1; The vehicle-mounted Ethernet optical-electric hybrid optical cable as claimed in claim 2; The vehicle-mounted detection device as claimed in claim 6; And the central control host as described in claim 8.

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