Vehicle-mounted optical communication module and vehicle

Abstract

This utility model relates to the field of vehicle communication technology, specifically to a vehicle-mounted optical communication module and a vehicle. The vehicle-mounted optical communication module includes an optical fiber, a transmitting component, a bidirectional transmission component, and a receiving component. The optical fiber includes a first port and a second port. The transmitting component receives vehicle information and converts it into optical signals for transmission. The bidirectional transmission component receives the optical signals and transmits them to the first port for uplink information transmission. The bidirectional transmission component can also receive and transmit control optical signals transmitted from the second port. The receiving component receives the control optical signals transmitted from the bidirectional transmission component for downlink command transmission. Compared to existing vehicle-mounted optical communication methods, this utility model, through the bidirectional transmission component, can complete all uplink and downlink optical communication information transmission using a single optical fiber, significantly simplifying the communication wiring harness, thereby reducing the risk of wiring harness failure, improving communication reliability, and reducing wiring difficulty.

Description

Technical Field

[0001] This utility model relates to the field of vehicle communication technology, and in particular to a vehicle optical communication module and vehicle. Background Technology

[0002] In the field of vehicle communication systems, information transmission between sensor modules and central control systems has traditionally relied on cables such as copper or aluminum wires. With technological advancements, the industry has gradually introduced fiber optic communication technology to increase the amount of communication information and transmission speed.

[0003] However, existing optical communication technologies require two sets of optical fibers to construct uplink and downlink communication links in order to achieve uplink image information transmission from the sensor module to the central control system and downlink command transmission from the central control system to the sensor module. Although this dual-fiber communication architecture can meet basic communication needs, it has some significant limitations. The dual-fiber architecture leads to a significant increase in the workload of fiber optic cabling and a corresponding increase in cabling difficulty, which is particularly prominent in the limited space inside the vehicle. Utility Model Content

[0004] This utility model provides an in-vehicle optical communication module and vehicle to solve the problem of increased fiber optic cabling workload and cabling difficulty caused by the dual-set fiber optic communication architecture.

[0005] This utility model discloses a vehicle-mounted optical communication module, comprising: an optical fiber including a first port and a second port; a transmitting component for receiving vehicle information and converting the vehicle information into an information optical signal for transmission; a bidirectional transmission component for receiving the information optical signal and transmitting the information optical signal to the first port to realize uplink information transmission, and receiving and transmitting control optical signal commands transmitted from the second port; and a receiving component for receiving the control optical signal commands transmitted by the bidirectional transmission component to realize downlink command transmission.

[0006] Optionally, the bidirectional transmission component includes at least one optical prism, which includes a first optical surface and a second optical surface arranged parallel to each other. The first optical surface can transmit light signals in a first wavelength range, and the second optical surface can reflect light signals in a second wavelength range. The first port is arranged opposite to the first optical surface. The light output port of the transmitting component is located on the incident side of the second optical surface, and the light input port of the receiving component is located on the transmission side of the first optical surface. The wavelength of the command light signal belongs to the first wavelength range, and the wavelength of the information light signal belongs to the second wavelength range.

[0007] Optionally, the command optical signal includes a first number of specific command optical signals, each of which has a corresponding command wavelength range; the number of input ports is the first number, and the first number of input ports are arranged in a column to form an input port column, each input port being used to receive the corresponding specific command optical signal; the bidirectional transmission component includes a second number of optical prisms, which are arranged in a column, with the first optical surface and the second optical surface of all the optical prisms being parallel to each other, forming an output prism column, which is parallel to the input port column; the input port of the 2N-1th position in the output prism column is... The optical port is located on the transmission side of the first optical surface of the Nth optical prism in the sequence, and the optical port of the 2Nth optical prism in the sequence is located on the reflection side of the second optical surface of the Nth optical prism in the sequence, where N is an integer greater than or equal to 1 and less than or equal to the first number; the second optical surfaces of all optical prisms in the optical prism column can reflect the optical signal in the command wavelength range corresponding to their respective optical ports, and the first optical surface of the first optical prism in the sequence can transmit the optical signal in the command wavelength range corresponding to its respective optical port, and the first optical surfaces of the remaining optical prisms can reflect the optical signal in the command wavelength range corresponding to their respective optical ports.

[0008] Optionally, the information optical signal includes a third number of specific information optical signals, each of which has a corresponding information wavelength range; the number of output ports is the third number, and the third number of output ports are arranged in a column to form an output port column, each of which is used to emit the corresponding specific information optical signal; the bidirectional transmission component further includes a fourth number of optical prisms, which are arranged in a column, with the first optical surface and the second optical surface of all the optical prisms being parallel to each other, forming an incident prism column, which is parallel to the output port column and located on the extension path of the output prism column; the output port of the 2M-1th position in the incident prism column is located at the position of the Mth position in the optical prism column. On the reflection incident side of the first optical surface of the prism, the light exit port of the second Mth sequence is located on the reflection incident side of the second optical surface of the Mth sequence of the optical prism, where M is an integer greater than or equal to 1 and less than or equal to the third number; the first and second optical surfaces of the optical prisms in the light incident prism column can reflect the light signals of the information wavelength range corresponding to their respective light exit ports, and the first and second optical surfaces of the first sequence of the light exit prisms in the light exit prism column can respectively reflect and transmit the light signals of the information wavelength range corresponding to all light exit ports, and the first and second optical surfaces of the remaining optical prisms in the light exit prism column can transmit the light signals of the information wavelength range corresponding to all light exit ports.

[0009] Optionally, if the first quantity and the third quantity are equal, then the first quantity, the second quantity, the third quantity, and the fourth quantity are equal.

[0010] Optionally, the first quantity, the second quantity, the third quantity, and the fourth quantity are all 2.

[0011] Optionally, the vehicle-mounted optical communication module further includes a fifth collimating lens, which is located on the incident paths of all the light inlets and the first port, and on the exit paths of all the light outlets.

[0012] Optionally, the vehicle-mounted optical communication module further includes a circuit board, a sensor, and a control chip. The first port, the transmitting component, the bidirectional transmission component, the receiving component, the sensor, and the control chip are all disposed on the circuit board. The sensor is used to acquire the vehicle information. The control chip is electrically connected to the sensor, the transmitting component, and the receiving component. It is used to receive the vehicle information from the sensor and convert it into an information electrical signal, which is then sent to the transmitting component to be converted into an information optical signal. The control chip also controls the sensor according to the control optical signal command received by the receiving component.

[0013] Optionally, the vehicle-mounted optical communication module further includes a cable and a power driver chip. The power driver chip is disposed on the circuit board, and the cable is connected to the power driver chip to provide driving power. The cable can form a hybrid optoelectronic cable with the optical fiber.

[0014] This utility model also discloses a vehicle, including the above-mentioned vehicle-mounted optical communication module.

[0015] The beneficial effects of the vehicle-mounted optical communication module provided in this embodiment are as follows: The vehicle-mounted optical communication module includes an optical fiber, a transmitting component, a bidirectional transmission component, and a receiving component. The optical fiber includes a first port and a second port. The transmitting component receives vehicle information and converts it into an information optical signal for transmission. The bidirectional transmission component receives the information optical signal and transmits it to the first port for uplink information transmission. The bidirectional transmission component can also receive and transmit control optical signal commands transmitted from the second port. The receiving component receives the control optical signal commands transmitted by the bidirectional transmission component for downlink command transmission. Compared to existing vehicle-mounted optical communication methods, this invention, through the bidirectional transmission component, can complete all uplink and downlink optical communication information transmission using a single optical fiber, significantly simplifying the communication wiring harness, thereby reducing the risk of wiring harness failure, improving communication reliability, and reducing wiring difficulty. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the vehicle-mounted optical communication module provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the vehicle-mounted optical communication module provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the vehicle-mounted optical communication module provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the housing provided in an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the optical path of the vehicle-mounted optical communication module provided in this embodiment of the utility model. Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the optical path of the vehicle-mounted optical communication module provided in this embodiment of the utility model. Figure 2 .

[0023] The labels for the attached figures are as follows:

[0024] 100. Vehicle-mounted optical communication module; 200. Vehicle-mounted central control system;

[0025] 1. Housing; 11. Bottom shell; 111. Mounting slot; 1111. First mounting port; 1112. Fixing block; 1112a. First mounting hole; 1112b. Second mounting hole; 12. Cover shell; 2. Transmitting component; 21. Driver chip; 22. Laser chip; 221. Light output port; 3. Bidirectional transmission component; 31. Optical prism; 311. First optical surface; 312. Second optical surface; 32. Light output prism array; 33. Light input prism array; 4. Receiving component; 41. Photoelectric conversion chip; 411. Light input port; 42. Transimpedance amplifier chip; 5. Circuit board; 6. Sensor; 7. Control chip; 8. Optoelectronic hybrid cable; 81. Optical fiber; 82. Cable; 9. Power driver chip; 10. Collimating lens. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] This utility model embodiment provides a vehicle-mounted optical communication module 100, such as Figures 2 to 3 and Figures 5 to 6 As shown, the vehicle-mounted optical communication module 100 includes an optical fiber 81, a transmitting component 2, a bidirectional transmission component 3, and a receiving component 4. The optical fiber 81 includes a first port and a second port. The transmitting component 2 receives vehicle information and converts it into an information optical signal for transmission. The bidirectional transmission component 3 receives the information optical signal and transmits it to the first port for uplink information transmission. The bidirectional transmission component 3 can also receive and transmit control optical signal commands transmitted from the second port. The receiving component 4 receives the control optical signal commands transmitted by the bidirectional transmission component 3 for downlink command transmission.

[0028] Specifically, the transmitting component 2 can receive vehicle information and convert it into an optical signal for transmission, facilitating optical communication. The bidirectional transmission component 3 can receive the optical signal transmitted by the transmitting component 2 and transmit it to the first port of the optical fiber 81, and then through the second port of the optical fiber 81 to the vehicle's central control system, enabling the central control system to acquire vehicle information and achieve uplink information transmission. Control optical signal commands generated by the central control system can be transmitted through the second port of the optical fiber 81 to the optical fiber 81, and then through the first port of the optical fiber 81 to the bidirectional transmission component 3. The receiving component 4 can receive the control optical signal commands transmitted by the bidirectional transmission component 3, achieving downlink command transmission, so as to control the vehicle to perform corresponding operations according to the control optical signal commands. Compared with existing vehicle-mounted optical communication methods, this invention, through the bidirectional transmission component 3, can complete all uplink and downlink optical communication information and command transmission using a single optical fiber 81, effectively reducing the number of optical fibers 81, greatly simplifying the communication harness, thereby reducing the risk of harness failure, improving communication reliability, and reducing the difficulty of wiring inside the vehicle.

[0029] As a preferred embodiment of this invention, such as Figures 2 to 3 and Figures 5 to 6 As shown, the bidirectional transmission component 3 includes at least one optical prism 31. The optical prism 31 includes a first optical surface 311 and a second optical surface 312 arranged parallel to each other. The first optical surface 311 can transmit light signals in a first wavelength range, and the second optical surface 312 can reflect light signals in a second wavelength range. A first port is arranged opposite to the first optical surface 311. The light output port 221 of the transmitting component 2 is located on the incident side of the second optical surface 312, and the light input port 411 of the receiving component 4 is located on the transmission side of the first optical surface 311. The wavelength of the command light signal belongs to the first wavelength range, and the wavelength of the information light signal belongs to the second wavelength range.

[0030] Specifically, the bidirectional transmission component 3 includes at least one optical prism 31. The optical prism 31 includes a first optical surface 311 and a second optical surface 312 arranged parallel to each other. The first optical surface 311 and the second optical surface 312 are provided with a specific optical film, so that the first optical surface 311 can transmit light signals in a first wavelength range and reflect light signals outside the first wavelength range, and the second optical surface 312 can reflect light signals in a second wavelength range and transmit light signals outside the second wavelength range.

[0031] The first port is positioned opposite the first optical surface 311. The output port 221 of the transmitting component 2 is located on the incident side of the second optical surface 312. The wavelength of the information light signal belongs to the second wavelength range. Therefore, when the information light signal emitted from the output port 221 of the transmitting component 2 is incident on the second optical surface 312, the second optical surface 312 can reflect the information light signal back to the first optical surface 311, and then transmit it through the first optical surface 311 to the first port, entering the optical fiber 81, thereby realizing uplink information transmission. Furthermore, the input port 411 of the receiving component 4 is located on the transmission side of the first optical surface 311. The wavelength of the command light signal belongs to the first wavelength range. Therefore, when the control light signal command is incident from the first port to the first optical surface 311, it can be directly transmitted from the first optical surface 311 to the receiving component 4, thereby realizing downlink command transmission.

[0032] As a preferred embodiment of this invention, such as Figures 2 to 3 and Figures 5 to 6 As shown, the command optical signal includes a first number of specific command optical signals, each with a corresponding command wavelength range; the number of input ports 411 is the first number, arranged in a row to form an input port column 411, each input port 411 being used to receive the corresponding specific command optical signal; the bidirectional transmission component 3 includes a second number of optical prisms 31, arranged in a row, with the first optical surface 311 and the second optical surface 312 of all optical prisms 31 being parallel to each other, forming an output prism column 32, which is parallel to the input port column 411; the input port 411 of the 2N-1th order in the output prism column 32 is located on the transmission side of the first optical surface 311 of the Nth order optical prism 31. Figure 6 (Y1 side), the 2Nth light inlet 411 is located on the reflective light outlet side of the second optical surface 312 of the Nth optical prism 31 (in the Y1 side), Figure 6 (Y2 side in the middle), where N is an integer greater than or equal to 1 and less than or equal to the first number; the second optical surface 312 of all optical prisms 31 in the output prism column 32 can reflect the light signal in the command wavelength range corresponding to their corresponding light inlet 411, and the first optical surface 311 of the first ordered optical prism 31 can transmit the light signal in the command wavelength range corresponding to its corresponding light inlet 411, and the first optical surface 311 of the remaining optical prisms 31 can reflect the light signal in the command wavelength range corresponding to their corresponding light inlet 411.

[0033] Specifically, the command optical signal includes a first number of specific command optical signals, each of which has a corresponding command wavelength range. The number of optical input ports 411 is set to the first number of specific command optical signals. The first number of optical input ports 411 are arranged in a row to form an optical input port 411 column, so that the optical input ports 411 can be arranged neatly and orderly, which facilitates optical path alignment with the optical prism 31, ensures that each optical input port 411 can accurately receive the corresponding specific command optical signal, and helps to save installation space.

[0034] The bidirectional transmission assembly 3 includes a second number of optical prisms 31 arranged in a row. The first optical surface 311 and the second optical surface 312 of all optical prisms 31 are parallel to each other, forming a light-emitting prism column 32. The light-emitting prism column 32 is parallel to the light-inlet column 411. The light-inlet 411 of the 2N-1th order in the light-emitting prism column 32 is located on the transmission side of the first optical surface 311 of the Nth order optical prism 31, and the light-inlet 411 of the 2Nth order is located on the reflection side of the second optical surface 312 of the Nth order optical prism 31, thereby ensuring that the light-inlet 411 and the optical prism 31 can be assembled in an orderly manner during the assembly process.

[0035] Furthermore, the wavelength range of the light signal that each light inlet 411 can accept and the light film set on the first optical surface 311 and the second optical surface 312 of the corresponding optical prism 31 are all matched with the command wavelength range corresponding to the specific command light signal. This ensures that the second optical surface 312 of all optical prisms 31 in the optical prism array 32 can reflect the light signal of the command wavelength range corresponding to its corresponding light inlet 411. The first optical surface 311 of the first-ranked optical prism 31 can transmit the light signal of the command wavelength range corresponding to its corresponding light inlet 411, and the first optical surface 311 of the other optical prisms 31 can reflect the light signal of the command wavelength range corresponding to its corresponding light inlet 411. This ensures that specific command light signals of different command wavelength ranges can be transmitted to the corresponding light inlet 411 according to the corresponding optical path.

[0036] Specifically, when specific command optical signals in different command wavelength ranges (for example, such as...) Figure 6When the optical signals y1, y2, y3, and y4 enter the bidirectional transmission component 3 through the first port of the optical fiber 81, they are first incident on the first optical surface 311 of the optical prism 31, which is the first in the output prism array 32. At this time, the specific command optical signal (y1 optical signal) within the transmission wavelength range of the first optical surface 311 of the optical prism 31 is directly transmitted through the first optical surface 311 to the corresponding input port 411. The remaining specific command optical signals (y2, y3, and y4 optical signals) are reflected by the first optical surface 311 to the second optical surface 312 of the optical prism 31. The specific command light signal (y2 light signal) within the reflection wavelength range of the second optical surface 312 of the optical prism 31 is directly reflected by the second optical surface 312 to the corresponding light inlet 411. The other specific command light signals (y3 and y4 light signals) are transmitted through the second optical surface 312 of the optical prism 31 to the first optical surface 311 of the next optical prism 31 in the light outlet prism array 32, and are transmitted (y3 light signal) and reflected (y4 light signal) according to the transmission wavelength range of the first optical surface 311 and the reflection wavelength range of the second optical surface 312 in the next optical prism 31.

[0037] As a preferred embodiment of this invention, such as Figures 2 to 3 and Figures 5 to 6 As shown, the information optical signal includes a third number of specific information optical signals, each with a corresponding information wavelength range; the number of light-emitting ports 221 is the third number, arranged in a row to form a column of light-emitting ports 221, each used to emit a corresponding specific information optical signal; the bidirectional transmission component 3 also includes a fourth number of optical prisms 31, arranged in a row, with the first optical surface 311 and the second optical surface 312 of all optical prisms 31 being parallel to each other, forming an incident light prism column 33, which is parallel to the column of light-emitting ports 221 and located on the extension path of the column of light-emitting ports 32; the light-emitting port 221 of the 2M-1th order in the incident light prism column 33 is located on the reflection incident side of the first optical surface 311 of the Mth order optical prism 31. Figure 6 On the X1 side), the light outlet 221 of the second Mth sequence is located on the reflection incident side of the second optical surface 312 of the Mth sequence optical prism 31. Figure 6In the X2 side), M is an integer greater than or equal to 1 and less than or equal to the third number; the first optical surface 311 and the second optical surface 312 of the optical prism 31 in the input prism column 33 can reflect the light signal of the information wavelength range corresponding to the corresponding output port 221, and the first optical surface 311 and the second optical surface 312 of the first optical prism 31 in the output prism column 32 can reflect and transmit the light signal of the information wavelength range corresponding to all output ports 221 respectively, and the first optical surface 311 and the second optical surface 312 of the remaining optical prisms in the output prism column 32 can transmit the light signal of the information wavelength range corresponding to all output ports 221.

[0038] Specifically, the information optical signal includes a third number of specific information optical signals, each of which has a corresponding information wavelength range. The number of output ports 221 is set to the third number corresponding to the specific information optical signals. The third number of output ports 221 are arranged in a row to form an output port 221 column, so that the output ports 221 can be arranged neatly and orderly, which facilitates optical path alignment with the bidirectional transmission component 3, ensures that each output port 221 can accurately send the corresponding specific command optical signal into the bidirectional transmission component 3, and helps to save installation space.

[0039] The transmission component also includes a fourth number of optical prisms 31, which are arranged in a row. The first optical surfaces 311 and the second optical surfaces 312 of all the optical prisms 31 are parallel to each other, forming an incident prism column 33. The incident prism column 33 is parallel to the exit port column 221 and is located on the extension path of the exit prism column 32. The exit port 221 of the 2M-1th order in the incident prism column 33 is located on the reflection and incident side of the first optical surface 311 of the Mth order optical prism 31, and the exit port 221 of the 2Mth order is located on the reflection and incident side of the second optical surface 312 of the Mth order optical prism 31, thereby ensuring that the exit port 221 and the optical prisms 31 in the incident prism column 33 can be assembled in an orderly manner during the assembly process.

[0040] Furthermore, the specific information wavelength range corresponding to the specific information light signal emitted by each light outlet 221 is matched with the optical film set on the first optical surface 311 and the second optical surface 312 of the corresponding optical prism 31, so that the first optical surface 311 and the second optical surface 312 of the optical prism 31 in the light inlet prism column 33 can reflect the light signal of the information wavelength range corresponding to its corresponding light outlet 221. Moreover, the first optical surface 311 and the second optical surface 312 of the first optical prism 31 in the light outlet prism column 32 can respectively reflect and transmit the light signal of the information wavelength range corresponding to all light outlets 221. The first optical surface 311 and the second optical surface 312 of the remaining optical prisms in the light outlet prism column 32 can transmit the light signal of the information wavelength range corresponding to all light outlets 221, thereby ensuring that the specific information light signals of different information wavelength ranges can be accurately transmitted to the first port of the optical fiber 81 according to the corresponding optical path.

[0041] Specifically, when different output ports 221 emit specific information optical signals with different information wavelength ranges (for example, such as...), Figure 6 When the x1, x2, x3, and x4 optical signals are transmitted, the first optical surface 311 and the second optical surface 312 of the optical prisms 31 corresponding to different output ports 221 in the input prism array 33 can reflect the specific information optical signals of the information wavelength range corresponding to their respective output ports 221, and transmit the specific information optical signals of the information wavelength range corresponding to other output ports 221. Thus, all the specific information optical signals (x1, x2, x3, and x4 optical signals) can be transmitted from the first optical surface 311 of the first optical prism 31 in the input prism array 33 to the second optical surface 312 of the last optical prism 31 in the output prism array 32. They are then transmitted sequentially through the second optical surface 312 and the first optical surface 311 of the optical prisms 31 in the output prism array 32, and finally through the transmission of the second optical surface 312 and the reflection of the first optical surface 311 of the first optical prism 31 in the output prism array 32, and accurately transmitted to the first port of the optical fiber 81.

[0042] As a preferred embodiment of this invention, such as Figures 2 to 3 and Figures 5 to 6 As shown, if the first quantity and the third quantity are equal, then the first quantity, the second quantity, the third quantity, and the fourth quantity are equal.

[0043] Specifically, if the first quantity and the third quantity are equal, then the first quantity, the second quantity, the third quantity and the fourth quantity are equal, which can make the output port 221, the input port 411, the input prism column 33 and the output prism column 32 form a symmetrical arrangement. This helps to optimize the layout of the output port 221, the input port 411, the input prism column 33 and the output prism column 32, and makes the number of channels for uplink information transmission and downlink command transmission equal.

[0044] As a preferred embodiment of this invention, such as Figures 2 to 3 and Figure 5 As shown, the first, second, third, and fourth quantities are all 2.

[0045] Specifically, the first, second, third, and fourth quantities are all 2, thus enabling the vehicle-mounted optical communication module 100 to perform dual-channel uplink information transmission and dual-channel downlink commands, ensuring that the vehicle-mounted optical communication module 100 has a communication rate of 20Gbps, meeting normal usage requirements, while simplifying the number of components in the vehicle-mounted optical communication module 100, which is beneficial to the miniaturization of the vehicle-mounted optical communication module 100.

[0046] As a preferred embodiment of this invention, such as Figures 2 to 3 and Figure 5 As shown, the vehicle-mounted optical communication module 100 also includes a fifth number of collimating lenses 10, which are located on the incident paths of all light inlets 411 and the first port, as well as on the exit paths of all light outlets 221.

[0047] Specifically, the fifth collimating lens 10 is located on the incident paths of all light inlets 411 and the first port, as well as on the exit paths of all light outlets 221, to collimate and shape the information light signal and control light signal command, so as to ensure that the information light signal and control light signal can be transmitted accurately.

[0048] As a preferred embodiment of this invention, such as Figures 2 to 3 As shown, the vehicle-mounted optical communication module 100 also includes a circuit board 5, a sensor 6, and a control chip 7. The first port, the transmitting component 2, the bidirectional transmission component 3, the receiving component 4, the sensor 6, and the control chip 7 are all located on the circuit board 5. The sensor 6 is used to acquire vehicle information. The control chip 7 is electrically connected to the sensor 6, the transmitting component 2, and the receiving component 4. It is used to receive the vehicle information from the sensor 6 and convert it into an information electrical signal, which is then sent to the transmitting component 2 to be converted into an information optical signal. It also controls the sensor 6 according to the control optical signal command received by the receiving component 4.

[0049] Specifically, sensor 6 is used to acquire vehicle information. Control chip 7 is electrically connected to sensor 6, transmitting component 2, and receiving component 4. Control chip 7 receives the vehicle information acquired by sensor 6, converts it into an information electrical signal, and sends it to transmitting component 2. Transmitting component 2 converts the information electrical signal into an information optical signal containing vehicle information for uplink information transmission. When receiving component 4 receives a control optical signal command, it converts the control optical signal command into a command electrical signal, enabling control chip 7 to control sensor 6 or in-vehicle equipment to perform corresponding operations.

[0050] It should be noted that sensor 6 includes a temperature sensor 6, a camera, etc. For example, when sensor 6 is a camera, the vehicle-mounted optical communication module 100 can perform communication related to vehicle perimeter images. Specifically, the camera can acquire image information about the vehicle perimeter, and after passing through the control chip 7, transmitting component 2, bidirectional transmission component 3, and optical fiber 81, it can transmit the information light signal containing the vehicle perimeter image information to the vehicle-mounted central control system 200. This allows the vehicle-mounted central control system 200 to quickly perform lane recognition and reversing guidance based on the information light signal, improving driving safety and convenience. Furthermore, the control light signal command generated by the vehicle-mounted central control system 200 can pass through the bidirectional transmission component 3 and optical fiber 81, the bidirectional transmission component 3, the receiving component 4, and the control chip 7. The control chip 7 can then control the camera to perform corresponding shooting operations based on the control light signal command to accurately acquire the required vehicle perimeter image information, such as controlling the camera to acquire image information behind the vehicle, enabling the vehicle-mounted central control system 200 to provide reversing guidance.

[0051] Furthermore, since the first port, transmitting component 2, bidirectional transmission component 3, sensor 6, and control chip 7 are all integrated on the circuit board 5, the entire vehicle-mounted optical communication module 100 can be compactly designed, saving space and improving the overall system integration. The control chip 7 is a MAC (Media Access Control) chip.

[0052] More specifically, such as Figures 2 to 3As shown, the transmitting component 2 includes several driving chips 21 and several laser chips 22. The driving chips 21 are electrically connected to the control chip 7 and the laser chips 22. Each driving chip 21 can receive the information electrical signal from the control chip 7 and control the corresponding laser chip 22 to generate a specific information optical signal within the corresponding information wavelength range (i.e., each laser chip 22 forms a light output port 221) and transmit it to the light input prism array 33 to facilitate uplink information transmission. The receiving component 4 includes a photoelectric conversion chip 41 and a transimpedance amplifier chip 42. The photoelectric conversion chip 41 is used to receive the specific command optical signal within the corresponding command wavelength range transmitted by the light output prism array 32 (i.e., each photoelectric conversion chip forms a light input port 411) and convert it into a corresponding control electrical signal. The transimpedance amplifier chip 42 is electrically connected to the photoelectric conversion chip 41 and the control chip 7. The transimpedance amplifier chip 42 can receive and amplify the control electrical signal converted by the photoelectric conversion chip 41 and transmit it to the control chip 7, so that the control electrical signal can be reliably received by the control chip 7 to control the sensor 6 or in-vehicle equipment to perform corresponding operations. Among them, laser chip 22 is VCSEL (Vertical-Cavity Surface-Emitting Laser), photoelectric conversion chip 41 is photodiode, and transimpedance amplifier chip 42 is TIA (Transimpedance Amplifier) ​​chip.

[0053] As a preferred embodiment of this invention, such as Figures 2 to 5 As shown, the vehicle-mounted optical communication module 100 also includes a cable 82 and a power driver chip 921. The power driver chip 921 is located on the circuit board 5. The cable 82 is connected to the power driver chip 921 to provide driving power. The cable 82 can form a photoelectric hybrid cable 8 with the optical fiber 81.

[0054] Specifically, the power driver chip 921 is located on the circuit board 5, and the cable 82 is connected to the power driver chip 921, thereby providing driving power to the electrical components of the vehicle-mounted optical communication module 100. Furthermore, the cable 82 can form a hybrid optoelectronic cable 8 with the optical fiber 81, enabling the optical communication module to simultaneously achieve power supply and complete all uplink and downlink optical communication information transmission through only one hybrid optoelectronic cable 8. This further reduces the wiring harness of the optical communication module, frees up space in the vehicle, and reduces wiring complexity.

[0055] It is worth mentioning that, such as Figures 1 to 4As shown, the vehicle-mounted optical communication module 100 also includes a housing 1 and a cover. The housing 1 is provided with a mounting groove 111. The circuit board 5, control chip 7, transmitting component 2, bidirectional transmission component 3, receiving component 4, and power driver chip 921 are all located in the mounting groove 111. The cover is placed over the opening of the mounting groove 111. The groove wall of the mounting groove 111 is provided with a first mounting opening 1111 and a fixing block 1112. The camera passes through the first mounting opening 1111. The fixing block 1112 is provided with a first mounting hole 1112a and a second mounting hole 1112b. The optical fiber 81 and the cable 82 pass through the first mounting hole 1112a and the second mounting hole 1112b, respectively. Adhesive is provided at the first mounting opening 1111, the first mounting hole 1112a, and the second mounting hole 1112b, thereby ensuring that all components inside the housing 1 are sealed in the mounting groove 111, effectively avoiding the influence of external moisture and dust.

[0056] This utility model also discloses a vehicle including the vehicle-mounted optical communication module 100 of the foregoing embodiments. This vehicle incorporates the same structure and beneficial effects as the vehicle-mounted optical communication module 100 of the foregoing embodiments. The structure and beneficial effects of the vehicle-mounted optical communication module 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0057] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A vehicle-mounted optical communication module, characterized in that, include: An optical fiber, which includes a first port and a second port; A transmitting component is used to receive vehicle information and convert the vehicle information into an information optical signal for transmission; A bidirectional transmission component is used to receive the information optical signal and transmit the information optical signal to the first port to realize uplink information transmission, as well as to receive and transmit control optical signal commands transmitted by the second port; A receiving component is used to receive the information transmitted by the bidirectional transmission component and transmit the information optical signal to the first port to realize downlink command transmission.

2. The vehicle-mounted optical communication module according to claim 1, characterized in that, The bidirectional transmission component includes at least one optical prism, the optical prism includes a first optical surface and a second optical surface arranged parallel to each other, the first optical surface can transmit light signals in a first wavelength range, and the second optical surface can reflect light signals in a second wavelength range. The first port is disposed opposite to the first optical surface; the light outlet of the transmitting component is located on the incident side of the second optical surface, and the light inlet of the receiving component is located on the transmission side of the first optical surface; The wavelength of the command optical signal belongs to the first wavelength range; the wavelength of the information optical signal belongs to the second wavelength range.

3. The vehicle-mounted optical communication module according to claim 2, characterized in that, The command optical signal includes a first number of specific command optical signals, each of which has a corresponding command wavelength range; The number of optical input ports is the first number, and the first number of optical input ports are arranged in a row to form an optical input port column. Each optical input port is used to receive the corresponding specific command optical signal. The bidirectional transmission component includes a second number of optical prisms, which are arranged in a row. The first optical surface and the second optical surface of all the optical prisms are parallel to each other, forming an output prism column, which is parallel to the input port column. The light inlet of the 2N-1th optical prism in the array is located on the transmission side of the first optical surface of the Nth optical prism, and the light inlet of the 2Nth optical prism is located on the reflection side of the second optical surface of the Nth optical prism, wherein N is an integer greater than or equal to 1 and less than or equal to the first number. The second optical surface of all the optical prisms in the output prism array can reflect the light signal in the command wavelength range corresponding to their respective input ports, and the first optical surface of the first optical prism can transmit the light signal in the command wavelength range corresponding to its respective input ports, while the first optical surface of the remaining optical prisms can reflect the light signal in the command wavelength range corresponding to their respective input ports.

4. The vehicle-mounted optical communication module according to claim 3, characterized in that, The information optical signal includes a third number of specific information optical signals, each of which has a corresponding information wavelength range; The number of light-emitting ports is the third number, and the third number of light-emitting ports are arranged in a row to form a light-emitting port column. Each light-emitting port is used to emit the corresponding specific information light signal. The bidirectional transmission component further includes a fourth number of optical prisms, which are arranged in a row. The first optical surface and the second optical surface of all the optical prisms are parallel to each other, forming an incident light prism column. The incident light prism column is parallel to the exit light column and is located on the extension path of the exit light prism column. The light exit port of the 2M-1th optical prism in the sequence is located on the reflection incident side of the first optical surface of the Mth optical prism, and the light exit port of the 2Mth optical prism is located on the reflection incident side of the second optical surface of the Mth optical prism, wherein M is an integer greater than or equal to 1 and less than or equal to the third number. The first and second optical surfaces of the optical prisms in the input prism array can reflect the light signals of the information wavelength range corresponding to their respective output ports. The first and second optical surfaces of the first optical prism in the output prism array can reflect and transmit the light signals of the information wavelength range corresponding to all output ports, respectively. The first and second optical surfaces of the remaining optical prisms in the output prism array can transmit the light signals of the information wavelength range corresponding to all output ports.

5. The vehicle-mounted optical communication module according to claim 4, characterized in that, If the first quantity and the third quantity are equal, then the first quantity, the second quantity, the third quantity, and the fourth quantity are equal.

6. The vehicle-mounted optical communication module according to claim 5, characterized in that, The first quantity, the second quantity, the third quantity, and the fourth quantity are all 2.

7. The vehicle-mounted optical communication module according to claim 4, characterized in that, It also includes a fifth collimating lens, which is located on the incident path of all the light inlets and the first port, and on the exit path of all the light outlets.

8. The vehicle-mounted optical communication module according to any one of claims 1-7, characterized in that, It also includes a circuit board, a sensor, and a control chip. The first port, the transmitting component, the bidirectional transmission component, the receiving component, the sensor, and the control chip are all disposed on the circuit board. The sensor is used to acquire the vehicle information. The control chip is electrically connected to the sensor, the transmitting component, and the receiving component. It is used to receive the vehicle information acquired by the sensor and convert it into an information electrical signal, which is then sent to the transmitting component to be converted into an information optical signal. It also controls the sensor according to the control optical signal command received by the receiving component.

9. The vehicle-mounted optical communication module according to claim 8, characterized in that, It also includes a cable and a power driver chip, the power driver chip being disposed on the circuit board, the cable being connected to the power driver chip to provide driving power, and the cable being able to form a hybrid optoelectronic cable with the optical fiber.

10. A vehicle, characterized in that, Includes the vehicle-mounted optical communication module as described in any one of claims 1-9.

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