CN111624914A - Controller connection structure and fiber laser - Google Patents
Controller connection structure and fiber laser Download PDFInfo
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- CN111624914A CN111624914A CN202010461460.XA CN202010461460A CN111624914A CN 111624914 A CN111624914 A CN 111624914A CN 202010461460 A CN202010461460 A CN 202010461460A CN 111624914 A CN111624914 A CN 111624914A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/0912—Electronics or drivers for the pump source, i.e. details of drivers or circuitry specific for laser pumping
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/22—Pc multi processor system
- G05B2219/2214—Multicontrollers, multimicrocomputers, multiprocessing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Programmable Controllers (AREA)
Abstract
The invention discloses a controller connecting structure and an optical fiber laser. The controller connecting structure comprises a main controller and a plurality of sub-controllers, the sub-controllers are connected with each other, and the main controller is connected with the sub-controllers through a cable. The controller connecting structure does not need to change the hardware structure of the interface of the main controller when the number of the sub-controllers is increased, and has good expandability; all the sub-controllers are communicated with each other, and the system can quickly respond to the state change or the fault of the system; and the connection structure is simple, and the anti-electromagnetic interference performance is strong.
Description
Technical Field
The invention relates to the field of controllers, in particular to a controller connection structure which is used for but not limited to extensible connection among controllers in a fiber laser. The invention also relates to a fiber laser.
Background
In the field of fiber lasers, a fiber combiner is commonly used to combine laser beams output by a plurality of laser modules together, thereby forming a fiber laser with higher power. Each laser module is actually a single-cavity fiber laser, except for a light path, each laser module needs to be provided with a set of independent electric control subsystems including a power supply, control, detection, driving and the like, and the core of each laser module is a sub-controller; the whole optical fiber laser comprises a central integrated controller for controlling the sub-controllers, namely a main controller, wherein the main controller and the sub-controllers respectively mainly comprise a high-speed FPGA and a low-speed microprocessor. Various communication signals, enable signals sent by a user upper computer or a cutting machine, pulse modulation signals, red light alignment guide signals, real-time fault processing signals, electric power conduction and the like need to be transmitted between the main controller and the sub-controller, so that the connection structure between the main controller and the sub-controller is very complex. Particularly, as the demand for the total laser output power is increasing, the number of single-cavity laser modules is correspondingly increased, that is, the number of sub-controllers is increased, the original main controller has to be redesigned, the number of interfaces of the sub-controllers is increased, the number of connecting lines between the main controller and the plurality of sub-controllers is too large and complex, the wiring is time-consuming and easy to make mistakes, and electromagnetic interference is generated between connecting wires, so that the connection cannot be realized or the technical requirements cannot be met although the connection is reluctantly realized, the development cost, the material cost and the installation cost are high, and the development period is long.
Fig. 1 shows a schematic structural diagram of a fiber laser controller in the prior art, and this connection structure has no expansibility, because the main controller needs to be redesigned every time a laser module is added, that is, a sub-controller is added, in addition to the electromagnetic interference caused by the line load.
Therefore, the electromagnetic interference generated in the connection of the main controller and the sub-controllers and the main controller interface cannot be expanded to be a technical problem in the current controller connection structure.
Disclosure of Invention
The present invention has been made in view of the above problems, and has been made to provide a controller connection structure, a fiber laser, which solves the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a controller connecting structure, which comprises a main controller and a plurality of sub-controllers, wherein the sub-controllers and the main controller and the sub-controllers are connected through single cables, and the sub-controllers are connected in parallel; and the connection is a bus connection, and signals in the bus connection are transmitted in a differential form.
Optionally, the cable is a flat wire having a plurality of D-Subminiature connectors crimped thereon, and the number of D-Subminiature connectors is equal to the sum of the number of main controllers and sub-controllers, and has opposite polarity.
Optionally, the flat wire internally comprises at least one of a power line, a communication line, a control line, a status line, a data line, and an address line.
Optionally, the controller connection structure adopts an RS-485 communication protocol.
The invention also provides a fiber laser, which comprises a plurality of laser modules, wherein each laser module comprises a single-cavity fiber laser, the fiber laser also comprises any one of the controller connecting structures, and each sub-controller is respectively arranged in one laser module.
Optionally, a fault cascade unit, a high-speed protection unit and a control unit are arranged in the main controller and each sub-controller, and the fault cascade unit is used for transmitting fault signals among the high-speed protection unit, the control unit and other controllers; the high-speed protection unit is used for acquiring photoelectric signals to generate fault signals and transmitting the fault signals to the control unit or the fault cascade unit; the control unit is used for processing and controlling the fault signal.
Optionally, the fault cascading unit comprises a number of ADM series transceivers.
Optionally, a plurality of wires are arranged in the cable and used for transmitting fault alarm signals, so that the speed of the fiber laser for dealing with faults is increased.
Optionally, the high-speed protection unit includes: the high-speed protection controller is arranged on an optical path of the optical fiber laser to detect the light leakage size of an optical fiber cladding, the optical signal comparator is used for comparing a detection signal of the photoelectric detector with a light leakage reference signal, the high-speed protection controller is used for closing the pump source driver according to an output result of the optical signal comparator, and the digital-to-analog converter is used for providing the light leakage reference signal for the optical signal comparator.
Optionally, the high speed protection controller comprises a discrete flip-flop or a field programmable gate array.
The controller connecting structure of the invention has the following advantages:
according to the controller connecting structure disclosed by the invention, the main controller is connected with each sub-controller through a single cable, so that the number of the sub-controllers is increased without changing the hardware structure of the main controller, and the expandability is good; secondly, as the sub-controllers are organically connected together and can communicate with each other, each sub-controller can quickly respond to the state change of other sub-controllers; and thirdly, because the connecting wires are few and short, the external interference on the connecting wires and the interference between the connecting wires are reduced.
According to the fiber laser disclosed by the invention, as the fault cascade processing mechanism is adopted in each controller, fault signals can be effectively transmitted among the controllers, the fault coping capability of the fiber laser is enhanced, and the overall safety is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a connection structure of a fiber laser multistage controller in the prior art;
FIG. 2 is a schematic diagram of the connection structure of a multi-stage controller in one embodiment of the invention;
FIG. 3 is a physical diagram of a connection structure of a multi-level controller in one embodiment of the invention;
FIG. 4 is a schematic structural diagram of a high power fiber laser based on a beam combining structure in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fault cascade processing apparatus in an embodiment of the present invention;
fig. 6 is a schematic diagram of the structure of the high-speed protection unit and the control unit (microcontroller) in one embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example 1
In order to solve the problem of connection between a main controller and a plurality of sub-controllers in the existing optical fiber laser, the invention provides a structure capable of realizing connection between various main controllers and a plurality of sub-controllers, wherein the plurality of sub-controllers in the connection structure are connected with each other, and then the main controller is connected with the plurality of sub-controllers through a single cable. The above-described controller connection structure can be used in any technical field. The selection of the controller model, the structure of the connecting line, the transmitted signal and the adopted communication protocol are not limited.
Fig. 2 is a schematic diagram illustrating a controller connection structure according to an embodiment of the present invention. The controller connection structure includes: the system comprises a main controller and a plurality of sub-controllers, wherein the plurality of sub-controllers are connected with each other, and each sub-controller can be connected with each other through a single cable, for example, the sub-controllers are physically connected in parallel; or one of the sub-controllers is connected with a plurality of sub-controllers, other sub-controllers can be connected, and in order to realize the effective connection among the sub-controllers, the connecting line among the sub-controllers is also the single cable line. In this way, the sub-controllers are organically connected together, communication can be carried out between the sub-controllers, and each sub-controller can quickly respond to the state change of the other sub-controllers.
In addition, in order to ensure that the hardware structure of the interface of the main controller is unchanged and increase the expandability of the control structure, the main controller and the plurality of sub-controllers are connected by a single cable, for example, in a specific embodiment, the main controller is connected to one sub-controller specified by a target address in the main controller by a cable connection line in a site selection manner, the sub-controllers and the main controller can also communicate in the site selection manner, and the main controller or each sub-controller can also broadcast to the rest of the controls in a broadcast manner. In this embodiment, the interface shape of the connection line and the adopted standard are not limited, and corresponding design can be performed according to different controller types and actual connection requirements. The design includes a mechanism to prevent bus contention, i.e., only one controller (whether the master or the slave) sends onto the bus at each time, and when the other controllers detect that the bus is being sent by one controller, the controllers wait until that controller sends out, and then queue in turn.
The controller connecting structure has the advantages that as only one control bus is connected with the main controller and all the sub-controllers, more sub-controllers can be connected in an extensible manner on the premise of not redesigning the main control, the structure is simple in wire arrangement, simple and compact, and leaves more space for other parts of the whole machine, so that the mechanical design of the whole machine is flexible and convenient; the wiring is simple and few, and the labor cost and the material cost are low; and the system and the sub-modules are simple and convenient to test and maintain.
In summary, in the technical solution of the embodiment, firstly, since the main controller is connected to each sub-controller by a single cable, the number of the sub-controllers is increased without changing the hardware structure of the main controller, and the expandability is good; secondly, as the sub-controllers are organically connected together and can communicate with each other, each sub-controller can quickly respond to the state change of other sub-controllers; and thirdly, because the connecting wires are few and short, the external interference on the connecting wires and the interference between the connecting wires are reduced.
Further, in order to achieve the object of the present invention, a plurality of sub-controllers are connected in parallel with each other through a single cable, and then the main controller is connected to any point on the parallel line through a single cable, for example, a connection line led out from the main controller may be connected to a connection node of one sub-controller in the middle of the parallel line, or may be connected to a sub-controller at the head end or the tail end of the arrangement, as shown in fig. 4. Also, since the connection lines are few and short, the connection lines are subjected to external interference and interference between the connection lines is small.
Further, the connection is a bus connection. Bus connection is an important connection mode in the field of computers or communications, a Bus (Bus) is a common communication trunk line for transmitting information among various functional components of a computer, and external equipment is connected with the Bus through corresponding interface circuits. The bus is a transmission line bundle composed of wires according to the kind of information transmitted by the computer.
The signals in the bus structure are transmitted in a differential fashion. The input and output signals are propagated in a differential mode, the common mode rejection ratio of noise is high, and therefore the system has high anti-interference capability.
Preferably, flat wires are selected as the DB bus, and in a specific embodiment, the kind of DB bus may be selected to include any one of DB9, DB25, and DB 37. For example, the DB25 bus is selected, so that the manufacturing is simple and convenient, and the cost is low. However, the number of lines in the DB bus is not limited to 9, 25, 37, and the specific number depends on the application requirements.
In one or more embodiments, a plurality of D-Subminiature connectors, referred to as D-sub, are crimped onto the flat wires of the DB bus, which is a common serial communication connector. The D-Subminiature connectors are connected with DB pairs on the main control circuit board and the sub-control circuit boards, the number of the connectors on the flat wire is the sum of the number of the main control boards and the sub-control boards, and the polarity of the connectors on the flat wire is opposite to that of the main control boards and the sub-control boards.
And in order to realize the conduction of the power supply and facilitate the connection of the power supply among all controllers, a power supply wire and/or an address wire/control wire can be arranged inside the flat wire. Thus, in one embodiment, the flat wires include at least one of power lines, communication lines, control lines, status lines, data lines, address lines, internally.
Preferably, the flat wire includes a unique pair of dedicated rapid failure alarm differential wires inside, such as wire 3 and wire 15 may be used as the alarm differential wires described above, although the present invention is not limited to the above-described structure.
The controller connection structure can be applied to the fiber laser by improving the existing bus structure according to actual needs, such as by improving the DB25 bus.
In a specific embodiment, the communication protocol adopted in the controller connecting structure is RS-485, so that effective transmission of various communication signals, enable signals sent by a user upper computer or a cutting machine, pulse modulation signals, red light alignment guide signals, real-time fault processing signals and power supply signals can be realized.
Referring to fig. 3, a physical diagram of a multi-stage controller connection structure in another embodiment of the present invention is shown, in which a parallel connection of six sub-controllers is shown, and the main controller is connected to the right end of a flat cable, which is not shown in the figure.
Example 2
Fig. 4 shows a schematic structural diagram of a high-power fiber laser based on a beam combining structure in an embodiment of the invention. The optical fiber laser comprises a plurality of laser modules, each laser module comprises a single-cavity optical fiber laser, the optical fiber laser further comprises a controller connecting structure, and the sub-controller is arranged in the laser modules.
In a specific embodiment, the main controller is used for connecting and controlling a plurality of laser modules, and each laser module further comprises a single-cavity optical fiber laser and a sub-controller. The English words in FIG. 4 have the following meanings:
CPS-clipping Power Stripper, i.e., a Cladding Power Stripper.
QBH-Quartz Block Head, an optical fiber output device, is a device for expanding beam output of optical fiber spots and reducing power density by packaging an optical fiber fusion Quartz column and a mechanical part, is used for medium-high power continuous light and light beam divergence output, and is commonly used for metal cutting or welding processing.
PD-Photodiode or Photodetector, i.e., a photodiode.
In one embodiment, fig. 5 shows a schematic structural diagram of a processor in one embodiment of the invention, and the main controller and each sub-controller comprise a fault cascade unit, a high-speed protection unit and a control unit. The fault cascade unit can receive fault signals from a high-speed protection unit in the controller or other controllers and transmit the processed signals to the control unit and other controllers; and the high-speed protection unit is used for acquiring photoelectric signals to generate fault signals and transmitting the fault signals to the control unit or the fault cascade unit, and the control unit is used for processing and controlling the fault signals.
In particular, the fault cascading unit comprises a plurality of ADM series transceivers which are connected in series and parallel or work independently. An ADM family transceiver is a transceiver for RS-485 protocol interface and capable of communicating differential and single-drop signals, such as ADM306X systems and the like. Preferably, the fault cascading unit comprises 3 ADMs 3066, and the remaining 2 ADMs 3066 implement the conversion between the differential and single-ended of the enable signal and the modulation signal, respectively, in addition to one of them to implement the differential-to-single-ended and single-ended-to-differential conversion of the fault signal.
Specifically, the fault cascade unit can receive fault signals sent by sub-controllers or main controllers of other laser modules and transmit the fault signals to a high-speed protection unit of the sub-controller of the laser module, and the high-speed protection unit determines whether to alarm or shut down the laser module; on the other hand, the fault cascading unit in the laser module sub-controller can also transmit the fault condition of the laser module to sub-controllers or main controllers in other laser modules, and transmit the processed processing signal to other controllers and a high-speed protection unit in the laser module sub-controller.
It is emphasized that two dedicated wires in the DB25 cable directly transmit fatal fault alarm signals, which are immediately converted into signals that the high-speed protection unit can receive after the fault cascade units of other sub-modules and main modules receive, and the high-speed protection unit immediately responds and starts protection after receiving the signals. In contrast, when the RS-485 communication protocol is used to transmit these signals, many other signals are transmitted simultaneously on the same RS-485 communication line, the response time to the fault signal is greatly increased, and the speed of processing these signals by the microprocessor software is slow, which causes the fatal fault alarm signals to be transmitted and processed in a timely manner. The special wire and the special high-speed hardware are used for receiving and processing the fault, but only the hardware part of the RS-485 protocol is adopted, so that the speed is increased by hundreds of times, and therefore, the fatal fault can be responded and processed in time to achieve the purpose of protecting the laser.
The high-speed protection unit may adopt the technical solution disclosed in the patent ZL201821623521.2 of the inventor, and fig. 6 is a schematic structural diagram of the high-speed protection unit and a control unit (microcontroller) in an embodiment of the present invention. The microcontroller of fig. 6 can be used as the control unit of the present invention, and the other circuit part is the high-speed protection unit of the present invention.
The high-speed protection unit includes: the high-speed protection device comprises a photoelectric detector, an optical signal comparator, a high-speed protection controller, a digital-to-analog converter and a microprocessor, wherein the photoelectric detector is arranged on an optical path of the optical fiber laser to detect the light leakage size of an optical fiber cladding, the optical signal comparator is used for comparing a detection signal of the photoelectric detector with a light leakage reference signal, the high-speed protection controller is used for closing a pumping source driver according to an output result of the optical signal comparator, the digital-to-analog converter is used for providing the light leakage reference signal for the optical signal comparator.
Further, the photodetector comprises one or more of: a first photodetector disposed at the front side of the wavelength division multiplexer, a second photodetector disposed at the back side of the grating behind the active fiber, a third photodetector disposed at the cladding power stripper, and a fourth photodetector disposed at the front side of the fiber output element.
Further, the protection circuit of the fiber laser further comprises: and the detection amplifying circuit is arranged between the photoelectric detector and the optical signal comparator.
Further, the microprocessor receives a laser fault alarm signal sent by the high-speed protection controller through an alarm signal line, and controls the high-speed protection controller through one or more of an internal enabling line, a reset line, an alarm clearing line, a photoelectric detector alarm shielding line and an internal modulation signal line.
Further, two of the optical signal comparators are respectively provided corresponding to each of the photodetectors to respectively compare the detection signal of the photodetector with an upper threshold and a lower threshold of a leak light reference signal.
Further, the high-speed protection controller is provided with an input interface for receiving one or more of an external enabling signal, an interlocking signal, an external emergency stop signal and an external modulation signal.
Further, the protection circuit of the fiber laser further comprises: a power comparator for comparing the power set value with a power reference value; the high-speed protection controller is connected with the power comparator to close the pump source driver according to the output result of the power comparator.
Further, the digital-to-analog converter is connected with the power comparator to provide the power reference value for the power comparator.
Further, the optical signal comparator and the power comparator are hysteresis comparators.
Further, the high-speed protection controller comprises a discrete trigger or a field programmable gate array.
The specific scheme is disclosed in patent ZL 201821623521.2.
In summary, in the fiber laser disclosed in this embodiment of the present invention, when a plurality of sub laser modules and a main module are connected together, the modules are mutually affected, and when one or more modules fail, not only those modules that fail but also other modules need to be protected. The fault is cascaded, processed and protected in multiple stages, so that the whole laser is protected. Therefore, in this embodiment, a fault cascade processing unit and a high-speed protection unit are designed in each processor, so as to implement cascade fault processing and appliance protection.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A kind of controller connection structure, the said controller connection structure includes a main controller and several sub-controllers, characterized by that, connect through the single cable between said several sub-controllers and between said main controller and said several sub-controllers, connect in parallel each other between said several sub-controllers; and the connection is a bus connection, and signals in the bus connection are transmitted in a differential form.
2. The controller connecting structure according to claim 1, wherein the cable is a flat wire on which a plurality of D-Subminiature connectors are crimped, and the number of D-Subminiature connectors is equal to the sum of the number of the main controllers and the number of the sub-controllers, and the polarities thereof are opposite.
3. The controller connection structure according to claim 2, wherein the flat wire internally includes at least one of a power line, a communication line, a control line, a status line, a data line, and an address line.
4. The controller connection structure according to claim 1, wherein the controller connection structure employs an RS-485 communication protocol.
5. A fiber laser comprising a plurality of laser modules, each of said laser modules comprising a single cavity fiber laser, wherein said fiber laser further comprises a controller connection structure according to any of claims 1-4, each of said sub-controllers being disposed within a respective one of said laser modules.
6. The fiber laser of claim 5, wherein a fault cascade unit, a high-speed protection unit and a control unit are arranged in the main controller and each sub-controller, and the fault cascade unit is used for transmitting fault signals among the high-speed protection unit, the control unit and other controllers; the high-speed protection unit is used for acquiring photoelectric signals to generate fault signals and transmitting the fault signals to the control unit or the fault cascade unit; the control unit is used for processing and controlling the fault signal.
7. The fiber laser of claim 6, wherein the fault cascading unit includes a number of ADM series transceivers.
8. The fiber laser of claim 7, wherein a plurality of conductors are provided within the cable for transmitting fault warning signals, thereby increasing the speed of the fiber laser in responding to a fault.
9. The fiber laser of claim 6, wherein the high-speed protection unit comprises: the high-speed protection controller is arranged on an optical path of the optical fiber laser to detect the light leakage size of an optical fiber cladding, the optical signal comparator is used for comparing a detection signal of the photoelectric detector with a light leakage reference signal, the high-speed protection controller is used for closing the pump source driver according to an output result of the optical signal comparator, and the digital-to-analog converter is used for providing the light leakage reference signal for the optical signal comparator.
10. The fiber laser of claim 9, wherein the high speed protection controller comprises a discrete trigger or a field programmable gate array.
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| CN201910660743.4A CN110442052A (en) | 2019-07-22 | 2019-07-22 | A kind of controller connection structure, optical fiber laser |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050201761A1 (en) * | 2003-09-05 | 2005-09-15 | Optical Zonu Corporation | SINGLE FIBER TRANSCEIVER with FAULT LOCALIZATION |
| CN102645284A (en) * | 2012-04-25 | 2012-08-22 | 武汉锐科光纤激光器技术有限责任公司 | Optical pulse detection and protection circuit for fiber laser |
| CN103427319A (en) * | 2013-08-12 | 2013-12-04 | 天津峻烽伟业光电科技有限公司 | Novel fiber laser |
| US20150015953A1 (en) * | 2012-02-28 | 2015-01-15 | Accelink Technologies Co., Ltd. | Single-pump multi-wavelength lasing semiconductor raman pump laser and pump combination apparatus |
| WO2016045396A1 (en) * | 2014-09-22 | 2016-03-31 | 深圳大学 | Pumped supercontinuum light source based on tunable pulse optical fiber laser |
| CN205565283U (en) * | 2015-12-29 | 2016-09-07 | 中国科学院西安光学精密机械研究所 | Real -time protection device of optical fiber amplifier and laser instrument thereof |
| CN106707842A (en) * | 2015-11-17 | 2017-05-24 | 恩耐公司 | Multiple laser module programming over internal communications bus of fiber laser |
| US20170294966A1 (en) * | 2016-04-12 | 2017-10-12 | Cable Television Laboratories, Inc | Fiber communication systems and methods |
| CN108028705A (en) * | 2015-07-13 | 2018-05-11 | 北弗吉尼亚电力合作社 | System, apparatus and method for the bi-directional transfer of data on single fiber beam |
| CN108390721A (en) * | 2018-05-10 | 2018-08-10 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser internal signal transmission system |
| CN108390246A (en) * | 2018-04-28 | 2018-08-10 | 无锡源清瑞光激光科技有限公司 | A kind of quasi-continuous optical fiber laser of module chemical combination beam |
| CN213026878U (en) * | 2020-11-06 | 2021-04-20 | 昆山华辰光电科技有限公司 | Portable high-power optical fiber laser |
| CN113540954A (en) * | 2021-06-01 | 2021-10-22 | 苏州创鑫激光科技有限公司 | Laser and bus type laser control system |
-
2019
- 2019-07-22 CN CN201910660743.4A patent/CN110442052A/en active Pending
-
2020
- 2020-05-27 CN CN202010461460.XA patent/CN111624914B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050201761A1 (en) * | 2003-09-05 | 2005-09-15 | Optical Zonu Corporation | SINGLE FIBER TRANSCEIVER with FAULT LOCALIZATION |
| US20150015953A1 (en) * | 2012-02-28 | 2015-01-15 | Accelink Technologies Co., Ltd. | Single-pump multi-wavelength lasing semiconductor raman pump laser and pump combination apparatus |
| CN102645284A (en) * | 2012-04-25 | 2012-08-22 | 武汉锐科光纤激光器技术有限责任公司 | Optical pulse detection and protection circuit for fiber laser |
| CN103427319A (en) * | 2013-08-12 | 2013-12-04 | 天津峻烽伟业光电科技有限公司 | Novel fiber laser |
| WO2016045396A1 (en) * | 2014-09-22 | 2016-03-31 | 深圳大学 | Pumped supercontinuum light source based on tunable pulse optical fiber laser |
| CN108028705A (en) * | 2015-07-13 | 2018-05-11 | 北弗吉尼亚电力合作社 | System, apparatus and method for the bi-directional transfer of data on single fiber beam |
| CN106707842A (en) * | 2015-11-17 | 2017-05-24 | 恩耐公司 | Multiple laser module programming over internal communications bus of fiber laser |
| CN205565283U (en) * | 2015-12-29 | 2016-09-07 | 中国科学院西安光学精密机械研究所 | Real -time protection device of optical fiber amplifier and laser instrument thereof |
| US20170294966A1 (en) * | 2016-04-12 | 2017-10-12 | Cable Television Laboratories, Inc | Fiber communication systems and methods |
| CN108390246A (en) * | 2018-04-28 | 2018-08-10 | 无锡源清瑞光激光科技有限公司 | A kind of quasi-continuous optical fiber laser of module chemical combination beam |
| CN108390721A (en) * | 2018-05-10 | 2018-08-10 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser internal signal transmission system |
| CN213026878U (en) * | 2020-11-06 | 2021-04-20 | 昆山华辰光电科技有限公司 | Portable high-power optical fiber laser |
| CN113540954A (en) * | 2021-06-01 | 2021-10-22 | 苏州创鑫激光科技有限公司 | Laser and bus type laser control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111624914B (en) | 2023-06-27 |
| CN110442052A (en) | 2019-11-12 |
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