CN114879325B - Built-in type can signal and pass optical cable altogether - Google Patents
Built-in type can signal and pass optical cable altogether Download PDFInfo
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- CN114879325B CN114879325B CN202210815244.XA CN202210815244A CN114879325B CN 114879325 B CN114879325 B CN 114879325B CN 202210815244 A CN202210815244 A CN 202210815244A CN 114879325 B CN114879325 B CN 114879325B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4295—Coupling light guides with opto-electronic elements coupling with semiconductor devices activated by light through the light guide, e.g. thyristors, phototransistors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
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Abstract
The invention provides a built-in type energy communication common transmission optical cable which comprises an integrated optical cable and a multi-source heterogeneous sensor integrated module embedded in the integrated optical cable according to a specified position, wherein the integrated optical cable comprises a plurality of energy transmission optical fibers and a plurality of communication optical fibers; the photoelectric cell is used for converting light energy transmitted by the energy transmission optical fiber into electric energy to supply power to other equipment, the sensor unit is used for collecting environmental parameters, and the environmental parameters are processed by the micro control unit and the communication module and then transmitted back by the communication optical fiber. The multisource heterogeneous sensor integrated module is integrated in a three-dimensional stacked mode of three-dimensional packaging, the size of components can be reduced, and the operation stability is improved. The built-in type energy-communication co-transmission optical cable is based on an integrated structure, and can establish an energy supply network and a communication network through one-time deployment, so that the monitoring of designated parameters of designated positions is realized. Through with the embedded setting inside integrated optical cable of the heterogeneous sensor collection moulding piece of multisource, can prevent that equipment from receiving the trouble that the environmental impact leads to.
Description
Technical Field
The invention relates to the technical field of optical fiber communication and energy supply, in particular to a built-in type energy communication common transmission optical cable.
Background
The construction of the large-range and multi-field parameter sensing network has important significance for safety monitoring in various aspects such as environment information extraction, national defense and the like. The traditional sensor carries out the in-process of monitoring network and setting up towards the complex environment, has the electric power energy supply difficulty, easily receives the environmental impact to destroy, information transmission is unstable and lays the difficult problem, needs to establish energy supply network and information transmission network respectively to the sensor among the prior art, and is not only with high costs, lays the difficulty, and entire system operation process is unstable moreover, and this to a great extent has restricted the progress of information-based construction. Meanwhile, the split type layout and the setting mode of the traditional sensor not only occupy a large amount of space, but also have extremely unstable running state, are easily affected by external environment and are damaged, and the detection precision is reduced or even the running is stopped.
Disclosure of Invention
Accordingly, embodiments of the present invention provide a built-in type optical cable for telecommunication and co-transmission, which obviates or mitigates one or more of the disadvantages of the related art.
The technical scheme of the invention is as follows:
the invention provides a built-in type cable for communication and common transmission, which comprises: integrated optical cable and a plurality of heterogeneous sensor collection moulding piece of multisource.
The integrated optical cable comprises a plurality of energy transmission optical fibers and a plurality of communication optical fibers; and a plurality of multi-source heterogeneous sensor integration modules are embedded in the integrated optical cable according to designated positions.
The multi-source heterogeneous sensor integration module comprises a photocell, an energy storage management unit, a communication module, a micro control unit and a sensor unit; each multi-source heterogeneous sensor integrated module is connected with the photocell through the energy transmission optical fiber to convert light energy into electric energy, and the energy storage management unit is adopted to store the electric energy; each multi-source heterogeneous sensor integrated module is sequentially connected with the communication module, the micro control unit and the sensor unit through a communication optical fiber, the sensor unit collects sensing data, the sensing data are processed by the control unit and then converted into optical signals through the communication module, and the optical signals are transmitted back through the communication optical fiber; the energy storage management unit functions as the communication module, the micro control unit and the sensor unit.
Wherein the photocell, the energy storage management unit, the communication module, the micro control unit and the sensor unit are vertically integrated in three dimensions.
In some embodiments, the photovoltaic cell, the energy storage management unit, the communication module, the micro control unit and the sensor unit in the multi-source heterogeneous sensor integrated module are connected and conducted through a multilayer wiring ceramic substrate, and the multilayer wiring ceramic substrate is subjected to insulation treatment through a printed resistor; and a ceramic packaging cover is arranged at the top of the multi-source heterogeneous sensor integrated module.
In some embodiments, the sensor unit includes a temperature sensor, an acoustic sensor, a pressure sensor, a photoelectric transducer, a laser, and a photoelectric modulator, the sensor unit is integrated using through-silicon-via packaging technology, a fiber optic pathway and a gas-liquid pathway are provided in the sensor unit, the fiber optic pathway connects the temperature sensor, the acoustic sensor, and the pressure sensor to an external environment, and the fiber optic pathway connects the photoelectric transducer and the laser to the external environment.
In some embodiments, the multi-source heterogeneous sensor integrated module is further provided with a near field communication unit, the near field communication unit comprises an antenna and a microwave transceiver which are connected through an electromagnetic waveguide, and the near field communication unit is connected with the micro control unit.
In some embodiments, the near field communication unit comprises a bluetooth module, an RFID module, an NFC module, and/or a WIFI module.
In some embodiments, the multi-source heterogeneous sensor integration module further comprises a memory, the memory being connected to the micro control unit.
In some embodiments, the photovoltaic cell is hetero-integrated with silicon and gallium arsenide, or the photovoltaic cell is hetero-integrated with silicon and indium phosphide.
In some embodiments, the sensor unit comprises a hydrophone.
In some embodiments, the energy transmission optical fiber transmits optical signals with the wavelength of 1500-1600 nm, and the communication optical fiber transmits optical signals with the wavelength of 1300-1400 nm.
In some embodiments, the multi-source heterogeneous sensor integrated module further comprises a positioning module powered by the energy storage management unit and connected to the control unit, the positioning module comprising a GPS module and/or a beidou positioning module.
The invention has the beneficial effects that:
the built-in type energy communication common transmission optical cable is provided with two types of optical fibers, wherein the energy transmission optical fiber is used for energy transmission, and the communication optical fiber is used for data communication; through the heterogeneous sensor integrated module of encapsulation device multisource in integration optical cable, utilize the photocell to pass the light energy conversion of energy transmission optic fibre transmission and become the electric energy and supply power for other equipment, gather environmental parameter through the sensor unit, pass back by the communication optic fibre after little the control unit and communication module are handled. The adoption three-dimensional form of piling up of three-dimensional encapsulation integrates the heterogeneous sensor integrated module of multisource, can reduce components and parts volume on the basis of guaranteeing sensor detection precision, promotes the operation stability. The built-in type energy-communication co-transmission optical cable is based on an integrated structure, and can establish an energy supply network and a communication network through one-time deployment, so that the monitoring of designated parameters of designated positions is realized. Through with the embedded setting inside integrated optical cable of the heterogeneous sensor collection moulding piece of multisource, can prevent that equipment from receiving the trouble that the environmental impact leads to.
Furthermore, the sensor unit is integrated by adopting a through silicon via packaging technology, so that the size of the equipment can be reduced, and the operation stability is improved.
Furthermore, by introducing a silicon and gallium arsenide heterogeneous integration technology or introducing a silicon and indium phosphide heterogeneous integration technology, the photoelectric conversion capability of the photocell is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
fig. 1 is a schematic view of an overall structure of a built-in type optical cable capable of communicating information and data together according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a multi-source heterogeneous sensor integrated module in a built-in type cable for common transmission of information according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a multi-source heterogeneous sensor integrated module in a built-in type trusted common transport optical cable according to another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a sensor unit in the built-in type optical communication cable according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating an operating state of a photovoltaic cell in an embedded signaling optical cable according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a sensing network constructed based on the built-in type common signaling optical cable according to an embodiment of the present invention.
Description of reference numerals:
100: an integrated optical cable; 200: a multi-source heterogeneous sensor integration module; 201: a photovoltaic cell;
202: an energy storage management unit; 203: a communication module; 204: a micro control unit;
205: a sensor unit; 2051: a temperature sensor; 2052: an acoustic sensor;
2053: a pressure sensor; 2054: a photoelectric transducer; 2055: a laser;
2056: a photoelectric modulator; 2057: an optical fiber passage; 2058: a gas-liquid passage;
206: a ceramic package cover; 207: a near field communication unit; 208: a multilayer wiring ceramic substrate;
209: printing a resistor; 210: an electromagnetic waveguide; 300: an energy transmission optical fiber;
400: an optical communication fiber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, and other details not so related to the present invention are omitted.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
It is also noted that, unless otherwise specified, the term "coupled" is used herein to refer not only to a direct connection, but also to an indirect connection with an intermediate.
When the optical cable sensing and monitoring device is used for large-scale and multi-field parameter sensing tasks, the problems of complex layout and high cost caused by insufficient sensing parameter types, unmatched size and shape with the existing optical cable specification exist in the traditional optical cable sensing and monitoring. Meanwhile, aiming at the energy supply of the equipment and the return of the acquired data, an energy supply network and a data transmission network need to be respectively established, so that the construction cost is extremely high, and the operation stability is greatly influenced by the external environment. Especially in low temperature, high humidity environment, sensor devices, energy supply networks and communication networks are extremely vulnerable.
Taking the national boundary monitoring task as an example, no matter whether the offshore boundary line and the road boundary line are basically in the marginal zone of the infrastructure, the geographic environment and the climate environment are extremely complex. In the face of all-weather accurate detection and information acquisition tasks of a long national boundary, the traditional sensor monitoring system respectively establishes the forms of an information transmission network and an energy supply network, so that the construction and maintenance cost of the system is greatly improved. Moreover, the power system can cause great potential safety hazards in environments with a large amount of vegetation coverage or a large amount of water.
The invention provides a built-in type communication common transmission optical cable, as shown in figure 1, comprising: an integrated fiber optic cable 100 and a plurality of multi-source heterogeneous sensor integration modules 200.
The integrated optical cable 100 comprises a plurality of energy transmission optical fibers 300 and a plurality of communication optical fibers 400; a plurality of multi-source heterogeneous sensor integrated modules 200 are embedded in the integrated optical cable 100 according to designated positions.
As shown in fig. 2, the multi-source heterogeneous sensor integration module 200 includes a photovoltaic cell 201, an energy storage management unit 202, a communication module 203, a micro control unit 204, and a sensor unit 205; each multi-source heterogeneous sensor integrated module 200 is connected with a photocell 201 through an energy transmission optical fiber 300 to convert light energy into electric energy, and an energy storage management unit 202 is adopted to store the electric energy; each multi-source heterogeneous sensor integrated module 200 is sequentially connected with a communication module 203, a micro control unit 204 and a sensor unit 205 through a communication optical fiber 400, the sensor unit 205 collects sensing data, the sensing data is processed by a control unit and then converted into optical signals through the communication module 203, and the optical signals are transmitted back through the communication optical fiber 400; the energy storage management unit 202 functions as a communication module 203, a micro control unit 204 and a sensor unit 205.
The photovoltaic cell 201, the energy storage management unit 202, the communication module 203, the micro control unit 204 and the sensor unit 205 are vertically integrated in three dimensions.
In this embodiment, a plurality of energy transmission optical fibers 300 and a plurality of communication optical fibers 400 are simultaneously arranged in the integrated optical cable 100, in some embodiments, the energy transmission optical fibers 300 transmit optical signals with a wavelength of 1500 to 1600nm, preferably, the energy transmission optical fibers 300 transmit optical signals with a wavelength of 1550nm, the communication optical fibers 400 transmit optical signals with a wavelength of 1300 to 1400nm, and preferably, the communication optical fibers 400 transmit optical signals with a wavelength of 1310nm. The integrated optical cable 100 can be laid along the connection line of the monitoring points according to the requirement of the monitoring task, and the integrated optical cable 100 can be laid in a buried or exposed manner according to the laying requirement of a specific detection environment in an actual application scene. Further, at a designated position in the integrated optical cable 100, the multi-source heterogeneous sensor integrated module 200 is disposed in an embedded manner. The multi-source heterogeneous sensor integration module 200 integrates the capability of converting light energy into electric energy and collecting environmental parameters. The multi-source heterogeneous sensor integration module 200 is used as a node to detect the target parameter at the designated position, the multi-source heterogeneous sensor integration module 200 can be arranged at equal intervals of 1m, 2m or 3m in a task scene with a small range or a high detection precision requirement, and the multi-source heterogeneous sensor integration module 200 can be arranged at equal intervals of 60m, 100m or 1km in a task scene with a large range or a low detection precision requirement.
In the multi-source heterogeneous sensor integrated module 200, the functions mainly include converting light energy into electric energy to meet the power consumption requirement of electronic components, collecting specified parameters through a sensor, and returning based on optical communication. The photovoltaic cell 201 is used for converting light energy into electric energy, and the optical fiber and the photovoltaic cell 201 need to be suspended above the device surface of the photovoltaic cell 201 without inter-device connection, as shown in fig. 5 below. The fiber laser beam suspended above the photocell 201 is incident from the outside. A structural enclosure is designed to ensure that the optical fibers are aligned with the surface of the photovoltaic cell 201 device and that the suspended distance is optimal, i.e., to ensure that the electrical power output capability of the photovoltaic cell 201 is optimal. Since the laser power irradiated on the surface of the photovoltaic cell 201 can reach 800mW, the heat dissipation requirement needs to be satisfied in consideration of the size limit of the housing.
The energy storage management unit 202 may include a battery pack, a battery management system, and an energy storage converter, and the battery energy storage has the advantages of relatively mature technology, large capacity, safety, reliability, low noise, strong environmental adaptability, and convenient installation, so in this embodiment, the energy storage management unit 202 stores electric energy by using a small battery pack; of course, for the multi-source heterogeneous sensor integrated module 200 with highly integrated package, a super capacitor may also be used for energy storage and power supply.
In some embodiments, the energy storage management unit 202 may be composed of an energy storage unit and a monitoring and scheduling management unit: the energy storage unit comprises an energy storage battery pack (BA), a Battery Management System (BMS) and an energy storage converter (PCS); the monitoring and scheduling management unit includes a central control system (MGCC) and an Energy Management System (EMS).
The Battery Management System (BMS) is arranged in the energy storage battery pack and is responsible for collecting information such as voltage, temperature, current and capacity of the energy storage battery pack, monitoring the real-time state and analyzing the fault, and meanwhile, the battery management system realizes optimized charging and discharging management control on the battery through online communication of the CAN bus, the energy storage converter and the monitoring and scheduling system.
The Battery Management System (BMS) has functions of battery voltage equalization, battery pack protection, thermal management, analysis and diagnosis of battery performance, and the like. It is required to be able to measure the voltage of the storage battery module, the charge and discharge current, the temperature and the terminal voltage of the single battery in real time, and calculate the parameters such as the battery internal resistance, etc. by analyzing the diagnosis model, the diagnosis of the current capacity or the remaining capacity (SOC) of the single battery, the diagnosis of the state of health (SOH) of the single battery, the evaluation of the state of the battery pack, and the estimation of the sustainable discharge time in the current state at the time of discharge are obtained.
The monitoring and scheduling management unit comprises an energy scheduling and management center of the energy storage unit, comprises a central control system (MGCC) and an Energy Management System (EMS), and is responsible for collecting all battery management system data, energy storage converter data and power distribution cabinet data, sending a control instruction to each part, controlling the operation of the whole energy storage system and reasonably arranging the energy storage converter to work; the system can automatically operate according to preset charging and discharging time, power and an operation mode, and can also receive an instant instruction of an operator to operate.
The sensor unit 205 may be provided with various types of sensors, such as one or more of a temperature sensor 2051, a light sensor, a force sensor, and a magnetic sensor, according to the requirements of the actual application scenario. The data collected by each sensor is processed by the micro-control unit 204 for data collection, storage, cleaning, packaging, and the like. The micro control unit 204 transmits the data collected by the sensor unit 205 back through the communication module 203 through the communication optical fiber 400. Further, the communication module 203 may include a laser 2055, an optical modem, and a circulator. The laser 2055 generates a laser beam, modulates the laser beam by an optical modem, and guides the modulated laser beam to the communication fiber 400 through the circulator. Conversely, the control signal may be received through the communication fiber 400, demodulated by the optical modem, and then processed by the micro control unit 204.
The photovoltaic cell 201, the energy storage management unit 202, the communication module 203, the micro control unit 204 and the sensor unit 205 are vertically integrated in three dimensions, and a formed vertical structure comprises a device layer, an interconnection layer, an isolation layer, an interlayer interconnection through hole, a heat dissipation through hole, a lead-out pressure point and the like. The stacking layer number of the vertical structure is more than 3, and 4 types of 9 active and passive standard bare chips such as micro-sensing, passive, optical and energy are formed. The embodiment can adopt heterogeneous integration technology to realize high-density three-dimensional stacking integration of 4 types of 9 devices such as a sensor device, a passive device, a photoelectric device, an energy chip and the like, and solve the problems of high-density interconnection, thermal/mechanical stress, heat dissipation and the like.
In some embodiments, as shown in fig. 3, the photovoltaic cell 201, the energy storage management unit 202, the communication module 203, the micro control unit 204 and the sensor unit 205 in the multi-source heterogeneous sensor integrated module 200 are connected and conducted through a multilayer wiring ceramic substrate 208, and the multilayer wiring ceramic substrate 208 is subjected to insulation treatment through a printed resistor 209; the ceramic packaging cover 206 is arranged on the top of the multi-source heterogeneous sensor integrated module 200.
In this embodiment, the multilayer wiring technique is a process technique for manufacturing the multilayer wiring ceramic substrate 208 and the package case. There are two basic approaches: one is to print a heat-resistant conductor on a ceramic green sheet and then to laminate the layers under pressure. The other is to print conductor layers and isolating dielectric layers alternately on the ceramic green body. Both of them are sintered at high temperature to form a monolithic composite ceramic inner conductor constituting a three-dimensional wiring to form a circuit, the conductor having aluminum-manganese system, indium-gold system, palladium system, aluminum system, tungsten system, etc. The device made by this method has the advantages of light weight, small volume, good reliability and high efficiency. The embodiment improves the integration level of the circuit and reduces the number of the circuits through the form of multilayer wiring, thereby reducing the weight. The electric performance is improved, and the interconnection line is shortened, so that distributed inductance and distributed capacitance are reduced, better fidelity of logic pulse can be obtained, and oscillation is reduced. Meanwhile, the structure is stronger in stability, can bear strong impact and vibration of the external environment, and improves reliability.
In some embodiments, as shown in fig. 4, the sensor unit 205 includes a temperature sensor 2051, an acoustic sensor 2052, a pressure sensor 2053, a photoelectric transducer 2054, a laser 2055, and a photoelectric modulator 2056, the sensor unit 205 is integrated using through-silicon-via packaging technology, a fiber pathway 2057 and a gas-liquid pathway 2058 are disposed within the sensor unit 205, the fiber pathway 2057 communicates the temperature sensor 2051, the acoustic sensor 2052, and the pressure sensor 2053 to the outside environment, and the fiber pathway 2057 communicates the photoelectric transducer 2054 and the laser 2055 to the outside environment.
Through Silicon Vias (TSVs) are holes created in a silicon wafer using an etching process. The interconnects are formed by filling the TSVs with a conductive material (e.g., copper, tungsten, or polysilicon). The main advantage of TSV interconnects is that the path for signals to travel from one chip to the next or from one layer of circuitry to the next is shortened. This allows for reduced power and the ability to increase interconnect density, thereby improving functionality and performance. In order to realize the sharp perception of the sensor unit 205 to the external environment, based on the through silicon via packaging technology, an optical fiber passage 2057 and a gas-liquid passage 2058 are arranged in a silicon substrate and used for communicating each sensor with the external environment to realize the perception and detection to the external environment.
In some embodiments, as shown in fig. 3, the multi-source heterogeneous sensor integrated module 200 is further provided with a near field communication unit 207, the near field communication unit 207 includes an antenna and a microwave transceiver connected by an electromagnetic waveguide 210, and the near field communication unit 207 is connected with the micro control unit 204.
The approach communication unit is used for establishing communication connection with the multi-source heterogeneous sensor integration module 200 in a short distance, and receiving data or issuing a control command. This is primarily to achieve close range control operational requirements. In some embodiments, the near field communication unit 207 includes a bluetooth module, an RFID module, an NFC module, and/or a WIFI module.
In some embodiments, the multi-source heterogeneous sensor integration module 200 further comprises a memory, the memory being connected to the micro control unit 204. In this embodiment, by integrating and packaging the memory, a larger storage space can be provided, and not only more environment data information can be stored, but also more complex control programs can be loaded and stored to complete more complex control operations.
In some embodiments, photovoltaic cell 201 is hetero-integrated with silicon and gallium arsenide, or photovoltaic cell 201 is hetero-integrated with silicon and indium phosphide.
For near infrared light, III-V semiconductor materials (gallium arsenide GaAs, indium phosphide InP) have the highest photoelectric conversion efficiency. Thus, the on-chip integrated energy harvesting device in this embodiment integrates group III-V materials, i.e., a heterogeneous integration technique of silicon with GaAs (InP), on a silicon substrate. Currently, heterogeneous integration includes three technical routes of heteroepitaxy, wafer bonding, and nanowire growth. The embodiment adopts groove epitaxy and low-temperature wafer bonding to solve the problem of thermal mismatch, adopts a buffer layer nanowire growth technology to solve the problem of lattice mismatch, and develops the high-performance silicon-based long-wavelength photoelectric detector. In some embodiments, the photovoltaic cell 201 is fabricated using a composite of inorganic photovoltaic and thermoelectric materials. Aiming at the conversion of 1550nm light, because the energy is small, the efficiency of photoelectric conversion is not high, and generally only can reach about 35%, in order to improve the energy conversion efficiency, a layer of thermoelectric material can be plated again, the heat released in the photoelectric conversion process is absorbed, the efficiency can be improved by 2% -3%, and a mixed photoelectric conversion device is formed.
In some embodiments, the sensor unit 205 comprises a hydrophone. Hydrophones are transducers that convert acoustic signals into electrical signals and are used to receive acoustic signals in water. The optical fiber hydrophone adopted in the embodiment is a device for detecting underwater sound waves by using an optical fiber technology, and has the advantages of extremely high sensitivity, large enough dynamic range, essential anti-electromagnetic interference capability, no impedance matching requirement, light system 'wet end' weight, structural arbitrariness and the like compared with the traditional piezoelectric hydrophone.
In some embodiments, the multi-source heterogeneous sensor integration module 200 further comprises a positioning module powered by the energy storage management unit 202 and connected as a control unit, the positioning module comprising a GPS module and/or a beidou positioning module. In this embodiment, by setting the positioning module, the actual positions of the nodes corresponding to the multi-source heterogeneous sensor integrated module 200 can be monitored in real time, and the environmental parameters acquired by the nodes correspond to the actual positions.
Specifically, as shown in fig. 6, a plurality of stations and nodes may be arranged at the start end or the intermediate point of the built-in type communication common transmission optical cable, the stations are used for energy supply and processing return data, and the nodes are provided with the multi-source heterogeneous sensor integration module 200 for collecting environmental parameters. The station comprises a highly integrated laser, a light detection and signal receiving circuit and other modules, specifically, a light source control unit controls the laser to emit a laser beam with a specified wavelength in the station, and on one hand, the laser beam with the wavelength of 1500-1600 nm is generated for energy transmission. On the other hand, a laser beam of 1300 to 1400nm generated by the laser is coupled with a control signal of the data transmission unit through a coupler. Preferably, the wavelength of the light for energy transfer is 1550nm, and the wavelength of the light for communication is 1310nm. When the multi-core optical cable is accessed, the circulator is adopted to access the communication optical fiber so as to distinguish the output data from the received data. After the communication optical fibers in the multi-core optical cable are transmitted, the circulator is connected with an energy conversion unit of the multi-source heterogeneous sensor integrated module 200, in the energy conversion unit, photoelectric conversion and energy storage are carried out through photocells in the energy storage management unit, and then direct current is output through the voltage boosting module and the voltage stabilizing module to supply power to the sensor unit. The data acquisition unit can be a micro-control module and is used for acquiring data of the sensor unit according to the instruction and transmitting the data back.
In summary, the built-in type energy-communication common transmission optical cable of the present invention is provided with two types of optical fibers, wherein the energy transmission optical fiber is used for energy transmission, and the communication optical fiber is used for data communication; through the heterogeneous sensor integrated module of encapsulation device multisource in integration optical cable, utilize the photocell to pass the light energy conversion of energy transmission optic fibre transmission and become the electric energy and supply power for other equipment, gather environmental parameter through the sensor unit, pass back by the communication optic fibre after little the control unit and communication module are handled. The adoption three-dimensional form of piling up of three-dimensional encapsulation integrates the heterogeneous sensor integrated module of multisource, can reduce components and parts volume on the basis of guaranteeing sensor detection precision, promotes the operation stability. The built-in type energy-communication co-transmission optical cable is based on an integrated structure, and can establish an energy supply network and a communication network through one-time deployment, so that the monitoring of designated parameters of designated positions is realized. Through with the embedded setting inside the integration optical cable of the heterogeneous sensor collection moulding piece of multisource, can prevent that equipment from receiving the trouble that environmental impact led to.
Furthermore, the sensor unit is integrated by adopting a through silicon via packaging technology, so that the size of the equipment can be reduced, and the operation stability is improved.
Furthermore, by introducing a silicon and gallium arsenide heterogeneous integration technology or introducing a silicon and indium phosphide heterogeneous integration technology, the photoelectric conversion capability of the photocell is improved.
It should also be noted that the exemplary embodiments noted in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments in the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A built-in type optical cable for communication and co-transmission, comprising:
the integrated optical cable comprises a plurality of energy transmission optical fibers and a plurality of communication optical fibers;
the multi-source heterogeneous sensor integration modules are embedded in the integrated optical cable according to designated positions;
the multi-source heterogeneous sensor integration module comprises a photocell, an energy storage management unit, a communication module, a micro control unit and a sensor unit; each multi-source heterogeneous sensor integrated module is connected with the photocell through the energy transmission optical fiber to convert light energy into electric energy, and the energy storage management unit is adopted to store the electric energy; each multi-source heterogeneous sensor integrated module is sequentially connected with the communication module, the micro control unit and the sensor unit through a communication optical fiber, the sensor unit collects sensing data, the sensing data are processed by the control unit and then converted into optical signals through the communication module, and the optical signals are transmitted back through the communication optical fiber; the energy storage management unit functions as the communication module, the micro control unit and the sensor unit;
wherein the photocell, the energy storage management unit, the communication module, the micro control unit and the sensor unit are vertically integrated in three dimensions; the photocell, the energy storage management unit, the communication module, the micro control unit and the sensor unit in the multi-source heterogeneous sensor integrated module are connected and conducted through a multilayer wiring ceramic substrate, and the multilayer wiring ceramic substrate is subjected to insulation treatment through a printed resistor; and a ceramic packaging cover is arranged at the top of the multi-source heterogeneous sensor integrated module.
2. The built-in type optical communication cable according to claim 1, wherein the sensor unit comprises a temperature sensor, an acoustic sensor, a pressure sensor, a photoelectric transducer, a laser, and an electro-optical modulator, the sensor unit is integrated by a through silicon via packaging technology, an optical fiber passage and a gas-liquid passage are provided in the sensor unit, the optical fiber passage connects the temperature sensor, the acoustic sensor, and the pressure sensor to an external environment, and the optical fiber passage connects the photoelectric transducer and the laser to the external environment.
3. The built-in type communication-sharing optical cable according to claim 1, wherein the multi-source heterogeneous sensor integration module is further provided with a near field communication unit, the near field communication unit comprises an antenna and a microwave transceiver which are connected by an electromagnetic waveguide, and the near field communication unit is connected with the micro control unit.
4. The built-in type optical communication cable according to claim 3, wherein the near field communication unit comprises a Bluetooth module, an RFID module, an NFC module and/or a WIFI module.
5. The built-in type communication-capable co-transmission optical cable according to claim 1, wherein the multi-source heterogeneous sensor integration module further comprises a memory, and the memory is connected with the micro control unit.
6. The built-in type optical fiber cable for common signal transmission according to claim 1, wherein the photovoltaic cell is obtained by hetero-integration of silicon and gallium arsenide, or the photovoltaic cell is obtained by hetero-integration of silicon and indium phosphide.
7. The built-in type optical cable for simultaneous transmission of information and signals according to claim 1, wherein the sensor unit comprises a hydrophone.
8. The built-in type optical signal common transmission cable according to claim 1, wherein the energy transmission optical fiber transmits optical signals with a wavelength of 1500 to 1600nm, and the communication optical fiber transmits optical signals with a wavelength of 1300 to 1400 nm.
9. The built-in type telecommunication common transmission optical cable according to claim 1, wherein the multi-source heterogeneous sensor integration module further comprises a positioning module, the positioning module is powered by the energy storage management unit and is connected with the control unit, and the positioning module comprises a GPS module and/or a Beidou positioning module.
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