CN117979198A - Ring topology network system based on improved passive optical network and operation method thereof - Google Patents
Ring topology network system based on improved passive optical network and operation method thereof Download PDFInfo
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- CN117979198A CN117979198A CN202410001222.9A CN202410001222A CN117979198A CN 117979198 A CN117979198 A CN 117979198A CN 202410001222 A CN202410001222 A CN 202410001222A CN 117979198 A CN117979198 A CN 117979198A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 53
- 239000010703 silicon Substances 0.000 claims abstract description 53
- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0003—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/009—Topology aspects
- H04Q2011/0092—Ring
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Abstract
The invention discloses a ring topology network system based on an improved passive optical network, which comprises an improved passive optical network main control device, a node device and an optical fiber cable; an improved passive optical network master control device and at least one node device are connected in series through an optical fiber cable to form a ring topology network; the improved passive optical network master control device comprises a DBA unit, a silicon optical driver and a silicon optical receiver; the node device modulates the transmitted optical signals and the data to be transmitted into new optical signals to be transmitted to the next node device or the improved passive optical network main control device; the invention provides a ring topology network system based on an improved passive optical network and an operation method thereof, wherein the ring topology network system can be applied in an extremely high-low temperature environment and has high throughput, low delay and high reliability.
Description
Technical Field
The invention relates to the technical field of information transmission, in particular to a ring topology network system based on an improved passive optical network and an operation method thereof.
Background
The industrial revolution 4.0 is now entering, and there are many new application demands, such as the need to support high bandwidth, low latency, ultra-reliability, strong EMI resistance, operation under extremely high/low temperature conditions, etc., especially in electric vehicles, humanoid robots, intelligent factory applications. Since the existing copper cable methods of industrial application have reached their physical limits, the existing technologies and solutions have failed to meet the rapidly growing application demands. Therefore, new technology materials are needed for replacement implementation, and optical fiber becomes the best choice of new technology and solutions under current industry 4.0.
The introduction of the optical fiber solves the problems of high bandwidth, low delay and electromagnetic interference resistance. However, optical modules have temperature limitations that prevent proper operation or operation in extreme high and low temperature environments, particularly in automotive, high-end precision machine tools, and some factory applications. How to solve the temperature problem of the industrial application becomes one of the urgent problems.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a ring topology network system based on an improved passive optical network and an operation method thereof, wherein the ring topology network system can be applied in an extremely high-low temperature environment and has high throughput, low delay and high reliability.
The technical scheme of the invention is as follows:
A ring topology network system based on an improved passive optical network comprises an improved passive optical network main control device, a node device and an optical fiber cable; an improved passive optical network master control device and at least one node device are connected in series through an optical fiber cable to form a ring topology network; therefore, the main focus is to use a DBA silicon optical modulator to modulate the upstream data and pure laser light by the node based on the burst window time. And then output to the next node or final destination core receiver. Since the nodes do not need to generate light, the temperature weakness of the laser in conventional schemes is avoided. The node device of the scheme can stably operate in extremely high and extremely low temperature environments.
The improved passive optical network master control device comprises a DBA unit, a silicon optical driver and a silicon optical receiver; the DBA unit is used for controlling the window starting time and the window length of each node device and controlling the active time sequence of the silicon light modulator of the node device; in the silicon optical receiver, the DBA unit also predicts the arrival time of the loopback data and enables the improved passive optical network main control device to analyze the transmission data of the node device; the silicon optical driver generates an emission optical signal; the silicon light receiver receives the optical signal;
the node device modulates the transmitted optical signals and the data which needs to be transmitted into new optical signals to be transmitted to the next node device or the improved passive optical network main control device.
Further, the node device comprises a device MAC, a SERDES interface and a silicon optical modulator; the node device transmits the corresponding data out through the device MAC and converts the serial signal rate by the SERDES interface.
Further, the improved passive optical network master control device is arranged in a controlled environment; the node device can be placed anywhere.
Further, the optical signal uses super frame and downlink XGEM frame to transmit information.
Further, the SERDES interface includes an rx_serdes interface module and a tx_serdes interface module, and the device MAC includes an rx_mac module, a tx_mac module, a dba_report module, a us_ctrl module and a tsn_switch module; the TSN_switch module is connected with the RX_MAC module, the TX_MAC module, the DBA_report module and the US_CTRL module, and the RX_MAC module and the TX_MAC module are respectively connected with the RX_SERDES interface module and the TX_SERDES interface module; the RX_SERDES interface module and the TX_SERDES interface module are connected with the silicon optical modulator.
A ring topology network operation method based on an improved passive optical network comprises an improved passive optical network main control device, node devices and optical fiber cables, wherein the improved passive optical network main control device and at least one node device are connected in series to form a ring topology network through the optical fiber cables; the method specifically comprises the following operation steps:
(1) The initial steps are as follows: the DBA unit of the improved passive optical network main control device sends out a control instruction to acquire the window starting time and the window length of the information data of each node device, and predicts the corresponding arrival time of the loopback data information;
(2) And (3) uplink step: the method comprises the steps that a silicon optical driver of an improved passive optical network main control device sends out an optical signal to reach a first node device, and the first node device fuses data to be uplink into the optical signal through a built-in silicon optical modulator to form a new optical signal according to the starting time of a corresponding window, and the new optical signal is transmitted to a next node device immediately;
(3) And (3) a loop-back step: when the newly generated optical signal is transmitted to the last node device in the step (2), the last node device fuses the self-uplink information, and then transmits the new optical signal to the silicon optical receiver of the improved passive optical network main control device, and the data analysis is carried out by the silicon optical receiver.
Further, the DBA unit instruction in the initial step is removed from the first start operation, and the subsequent steps can be combined with the optical information in the upstream step.
Furthermore, the DBA unit also realizes the time unification function of the improved passive optical network master control device and the node device.
Compared with the prior art, the invention has the advantages that:
the integrated whole ring topology network system based on the improved passive optical network only needs one silicon optical driver (LED) and one silicon optical receiver (IC). All node device equipment does not need an optical transceiver, but only needs a silicon optical modulator, so that the manufacturing cost of the system is greatly reduced.
The improved passive optical network master device (CORE TSPON) may be installed in a controlled environment by including a silicon optical driver (LED) and a silicon optical receiver (IC). All other NODE device (NODE) equipment can be placed anywhere, including high/low temperature environments, thus solving the most difficult extreme high/low temperature environmental problems.
The invention is based on the optical fiber, and is a wiring system with extremely strong electromagnetic interference resistance. In which silicon optical processing chips, in particular DBA silicon optical modulators, are employed, and which also carry a transmission bus solution with a very high shock resistance, high throughput, low delay and high reliability.
Drawings
Fig. 1 is a schematic view of a structural framework of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, wherein like or similar reference numerals refer to like or similar elements or elements of similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and not as a limitation of the present invention.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Reference numerals referring to steps in the various embodiments are merely for convenience of description and do not have a substantial sequential relationship. Different steps in each specific embodiment can be combined in different sequences, so that the aim of the invention is fulfilled. In addition, the partial structures and modules of the invention which are not described in detail can be realized by adopting the conventional technical means, so the detailed description is not repeated.
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1, a ring topology network system based on an improved passive optical network includes an improved passive optical network master control device, a node device, and an optical fiber cable. An improved passive optical network master device and at least one node device are connected in series by a fiber optic cable to form a ring topology network. The system needs an improved passive optical network main control device, and is matched with a plurality of node devices, the node devices can be arranged in corresponding quantity according to the need, and a ring topology is formed. Therefore, the scheme mainly uses a DBA (digital broadband) silicon optical modulator to modulate uplink data and pure laser through a node based on burst window time. And then output to the next node or final destination core receiver. Since the nodes do not need to generate light, the temperature weakness of the laser in conventional schemes is avoided. The node device of the scheme can stably operate in extremely high and extremely low temperature environments.
Specifically, the improved passive optical network master device comprises a DBA unit, a silicon optical driver and a silicon optical receiver. The DBA unit is used to control the window start time and window length of each node device and also to control the active timing of the silicon optical modulator of the node device. In the silicon optical receiver, the DBA unit also predicts the arrival time of the loopback data and enables the improved passive optical network master device to resolve the transmission data of the node device. Namely, the time unification of the whole system and the time control of distributing corresponding information transmission are realized through the DBA unit.
The silicon optical driver generates an emission optical signal. The silicon optical receiver receives an optical signal. A specific silicon optical driver is one that generates two emitted optical signals, the first optical signal being used to transfer downstream data from the host core to all nodes, including the DBA control signal. The second optical signal is pure light without data. Output to each node as a whole through a ring topology network. During the burst window, each node modulates its uplink data and its input pure optical signal, and outputs a new optical signal carrying its uplink data, and then loops back to the main core device. The node device modulates the transmitted optical signals and the data which needs to be transmitted into new optical signals to be transmitted to the next node device or the improved passive optical network main control device. For non-burst window times, the node device bypasses the pure optical signal to the silicon optical receiver of the next node device or its master core device modified passive optical network master.
Specific node devices include device MAC, SERDES interfaces, and silicon optical modulators. The node device transmits the corresponding data out through the device MAC and converts the serial signal rate by the SERDES interface. The silicon optical modulator integrates the electrical signal information which needs to be uploaded by the node device into an optical signal.
The method specifically comprises the following operation steps:
(1) The initial steps are as follows: the DBA unit of the improved passive optical network master control device sends out control instructions, the window starting time and the window length of the information data assigned to each node device, and predicts the corresponding arrival time of the looped-back data information. That is, the DBA unit initially realizes the time unification of the system to accurately control when and how much information is transmitted by each node device.
(2) And (3) uplink step: the silicon optical driver of the improved passive optical network main control device sends out optical signals to reach the first node device, and the first node device fuses the data needing to be uplink into the optical signals from the main control device or the previous node through the built-in silicon optical modulator to form new optical signals according to the corresponding window starting time, and the new optical signals are transmitted to the next node device. And (5) finishing the data acquisition transmission of the node device in the uplink direction.
(3) And (3) a loop-back step: when the newly generated optical signal is transmitted to the last node device in the step (2), the last node device fuses the self-uplink information, and then transmits the new optical signal to the silicon optical receiver of the improved passive optical network main control device, and the data analysis is carried out by the silicon optical receiver.
The DBA unit instruction in the initial step is removed from the first start operation, and the subsequent steps can be combined with the optical information in the uplink step. That is, in the subsequent operation process, the optical signal may include information data that needs to be uploaded by the node device next time, so as to transmit uplink data next time. Naturally, the allocation can also be a separate allocation and an uplink transmission. The high bandwidth of the fiber brings about both of these schemes.
In a specific system setup, the improved passive optical network master device is placed in a controlled environment. The node device can be placed anywhere and can operate at relatively high and low temperatures because the silicon optical modulator of the node device itself does not generate light, but instead modulates the input data and input light into a new output optical signal. Thereby achieving stable operation in extremely high/low temperature environments.
Preferably, the optical signal uses a superframe and a downlink XGEM frame for information transmission. The SERDES interface of the specific node device comprises an RX_SERDES interface module and a TX_SERDES interface module, and the device MAC of the node device comprises an RX_MAC module, a TX_MAC module, a DBA_report module, a US_CTRL module and a TSN_switch module; the TSN_switch module is connected with the RX_MAC module, the TX_MAC module, the DBA_report module and the US_CTRL module, and the RX_MAC module and the TX_MAC module are respectively connected with the RX_SERDES interface module and the TX_SERDES interface module; the RX_SERDES interface module and the TX_SERDES interface module are connected with the silicon optical modulator.
In summary, the system can realize a transmission bus scheme with high throughput, low delay and high reliability in an extremely high/low temperature environment by simplifying the node device and using only one improved passive optical network master control device TSPON, has a cost far lower than that of a common optical fiber scheme, and can be more suitable for an extreme temperature environment. The key transportation platform and connection problems in the industry 4.0 can be effectively solved, and particularly, the core transportation network and the sensor of an automobile, a humanoid robot, a high-end high-precision machine tool and an intelligent factory are connected.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A ring topology network system based on an improved passive optical network, characterized in that: the system comprises an improved passive optical network main control device, a node device and an optical fiber cable; an improved passive optical network master control device and at least one node device are connected in series through an optical fiber cable to form a ring topology network;
The improved passive optical network master control device comprises a DBA unit, a silicon optical driver and a silicon optical receiver; the DBA unit is used for controlling the window starting time and the window length of each node device and controlling the active time sequence of the silicon light modulator of the node device; in the silicon optical receiver, the DBA unit also predicts the arrival time of the loopback data and enables the improved passive optical network main control device to analyze the transmission data of the node device; the silicon optical driver generates an emission optical signal; the silicon light receiver receives the optical signal;
the node device modulates the transmitted optical signals and the data which needs to be transmitted into new optical signals to be transmitted to the next node device or the improved passive optical network main control device.
2. A ring topology network system based on an improved passive optical network of claim 1, wherein: the node device comprises a device MAC, a SERDES interface and a silicon optical modulator; the node device transmits the corresponding data out through the device MAC and converts the serial signal rate by the SERDES interface.
3. A ring topology network system based on an improved passive optical network of claim 1, wherein: the improved passive optical network master control device is arranged in a controlled environment; the node device can be placed anywhere.
4. A ring topology network system based on an improved passive optical network as recited in claim 2, wherein: the optical signal adopts a superframe and a downlink XGEM frame to carry out information transmission.
5. A ring topology network system based on an improved passive optical network as recited in claim 2, wherein: the SERDES interface comprises an RX_SERDES interface module and a TX_SERDES interface module, and the device MAC comprises an RX_MAC module, a TX_MAC module, a DBA_report module, a US_CTRL module and a TSN_switch module; the TSN_switch module is connected with the RX_MAC module, the TX_MAC module, the DBA_report module and the US_CTRL module, and the RX_MAC module and the TX_MAC module are respectively connected with the RX_SERDES interface module and the TX_SERDES interface module; the RX_SERDES interface module and the TX_SERDES interface module are connected with the silicon optical modulator.
6. A ring topology network operation method based on an improved passive optical network is characterized in that: the system comprises an improved passive optical network main control device, node devices and optical fiber cables, wherein the improved passive optical network main control device and at least one node device are connected in series to form a ring topology network through the optical fiber cables; the method specifically comprises the following operation steps:
(1) The initial steps are as follows: the DBA unit of the improved passive optical network main control device sends out a control instruction to acquire the window starting time and the window length of the information data of each node device, and predicts the corresponding arrival time of the loopback data information;
(2) And (3) uplink step: the method comprises the steps that a silicon optical driver of an improved passive optical network main control device sends out an optical signal to reach a first node device, and the first node device fuses data to be uplink into the optical signal through a built-in silicon optical modulator to form a new optical signal according to the starting time of a corresponding window, and the new optical signal is transmitted to a next node device immediately;
(3) And (3) a loop-back step: when the newly generated optical signal is transmitted to the last node device in the step (2), the last node device fuses the self-uplink information, and then transmits the new optical signal to the silicon optical receiver of the improved passive optical network main control device, and the data analysis is carried out by the silicon optical receiver.
7. The method for operating a ring topology network based on an improved passive optical network of claim 6, wherein: the DBA unit instruction in the initial step is removed from the first start of operation and can be subsequently combined with the optical information in the upstream step.
8. The method for operating a ring topology network based on an improved passive optical network of claim 6, wherein: the DBA unit also realizes the time unification function of the improved passive optical network master control device and the node device.
9. The method for operating a ring topology network based on an improved passive optical network of claim 6, wherein: the node device comprises a device MAC, a SERDES interface and a silicon optical modulator; the node device transmits the corresponding data out through the device MAC and converts the serial signal rate by the SERDES interface.
10. The method for operating a ring topology network based on an improved passive optical network of claim 9, wherein: the SERDES interface comprises an RX_SERDES interface module and a TX_SERDES interface module, and the device MAC comprises an RX_MAC module, a TX_MAC module, a DBA_report module, a US_CTRL module and a TSN_switch module; the TSN_switch module is connected with the RX_MAC module, the TX_MAC module, the DBA_report module and the US_CTRL module, and the RX_MAC module and the TX_MAC module are respectively connected with the RX_SERDES interface module and the TX_SERDES interface module; the RX_SERDES interface module and the TX_SERDES interface module are connected with the silicon optical modulator.
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