CN117629585A - Laser state long-time monitoring system - Google Patents
Laser state long-time monitoring system Download PDFInfo
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- CN117629585A CN117629585A CN202311554209.8A CN202311554209A CN117629585A CN 117629585 A CN117629585 A CN 117629585A CN 202311554209 A CN202311554209 A CN 202311554209A CN 117629585 A CN117629585 A CN 117629585A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 154
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Abstract
The invention relates to a laser state long-time monitoring system which comprises an industrial personal computer, a server, an instrument controller, a plurality of parameter data monitoring modules, an electric subsystem, a front-end display subsystem and a rear-end processing subsystem, wherein the industrial personal computer is used for controlling and collecting data of optical instruments and optical mechanical elements in an optical path where a laser to be detected is located, the server is used for supporting the front-end display subsystem and the rear-end processing subsystem to operate, the instrument controller is connected with the industrial personal computer, the parameter data monitoring modules are used for monitoring environmental parameters and laser parameters of the laser to be detected, the electric subsystem is used for supplying power for the optical instruments and the server, the front-end display subsystem is used for interacting with a user and displaying processing results of the rear-end processing subsystem, and the rear-end processing subsystem is communicated with the front-end display subsystem and is used for receiving control instructions of the front-end display subsystem and processing collected data. Compared with the prior art, the invention has the advantages of long-time operation, unattended operation, abnormal alarm and the like.
Description
Technical Field
The invention relates to the field of photoelectric measurement, in particular to a laser state long-time monitoring system.
Background
The laser is an important optical device and is widely applied to the fields of scientific research, medical treatment, communication, military, aerospace and the like. During long operation, the performance of the laser may change over time, such as attenuation of laser power, wavelength drift, degradation of beam quality, etc.
These performance variations may even affect the proper operation of the system or present potential safety hazards. For example, in the field of industrial manufacturing, degradation of laser performance may cause degradation of laser cutting and welding quality, failing to meet the requirements of high-precision manufacturing; in the field of optical communication, the degradation of the performance of a laser directly affects the distance and signal quality of optical signal transmission; the laser has higher requirements on the long-time operation stability of the laser in the special fields of military, aerospace and the like, monitors the long-time performance change of the laser accurately in real time, and has important significance for ensuring the stability and reliability of the laser, prolonging the service life of the laser and reducing the maintenance cost.
The current commonly used laser performance monitoring methods have some defects. For example, conventional monitoring methods generally rely on offline experiments or periodic detection, and the inability to monitor laser performance changes in real time limits the timely discovery and resolution of problems. In addition, the monitoring parameter data in the existing method are limited, the overall performance of the laser is difficult to comprehensively evaluate, personnel are required to watch, and the data change of the laser running for a long time is difficult to obtain.
Disclosure of Invention
The invention aims to provide a laser state long-time monitoring system for accurately monitoring the laser operation state in real time.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a long-time monitoring system of laser instrument state, includes industrial computer, server, instrument controller, a plurality of parameter data monitoring module, electric subsystem, front end display subsystem and rear end processing subsystem, the industrial computer is arranged in the control and the data acquisition of each optical instrument and optical mechanical element in the light path that awaits measuring laser instrument place, the server is used for supporting the operation of front end display subsystem and rear end processing subsystem, instrument controller with the industrial computer is connected for each optical instrument in the control light path, a plurality of parameter data monitoring module is used for monitoring the environmental parameter and the laser instrument parameter of awaiting measuring laser instrument, electric subsystem is arranged in each optical instrument and server power supply in the light path, front end display subsystem is used for with user interaction and display rear end processing subsystem's processing result, rear end processing subsystem with front end display subsystem communicates for receive the control command of front end display subsystem, and handle the data of gathering.
Further, the system also comprises an upper bracket for installing the industrial personal computer, the server, the instrument controller and the electrical subsystem on the upper bracket.
Further, the plurality of parameter data monitoring modules are mounted on an optical platform below the upper bracket.
Further, the outer sides of the upper support and the optical platform are provided with shading protection covers.
Further, a display and a warning lamp are arranged on the outer side of the shading protection cover.
Further, the shading protection cover is made of metal.
Further, the safety protection module comprises a laser temperature monitoring sub-module, a chiller flow monitoring sub-module, a laser shutter control sub-module and an alarm protection sub-module, the environment monitoring module comprises an environment vibration monitoring sub-module, an environment temperature monitoring sub-module, an environment humidity monitoring sub-module and an environment noise monitoring sub-module, the light beam monitoring module comprises a laser energy monitoring sub-module, a polarization degree monitoring sub-module, a near far field light spot monitoring sub-module, a pulse width and frequency monitoring sub-module and a laser spectrum monitoring sub-module, and the transmission characteristic module comprises a light beam directivity monitoring sub-module, a light beam jitter monitoring sub-module, an M2 factor monitoring sub-module and a divergence angle monitoring sub-module, wherein each sub-module is used for monitoring laser parameter data and environment parameter data.
Further, the outer sides of all sub-modules in the safety protection module, the environment monitoring module, the light beam monitoring module and the transmission characteristic module are provided with light shielding covers for shielding stray light.
Further, the front-end display subsystem communicates with the back-end processing subsystem through an API.
Further, the back-end processing subsystem comprises a data acquisition module, a service management module and a data analysis and monitoring module, and is used for data acquisition, instruction issuing and data processing and analysis.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, the environment where the laser is located is considered to have a great influence on the state of the laser, the environment parameters and the laser parameters are collected through the operation of the plurality of parameter data monitoring modules under the system instruction, and the monitoring, the processing, the analysis and the like are carried out through the back-end processing system, so that the system can realize real-time accurate monitoring of the operation state of the laser.
(2) The monitoring sub-modules are arranged below the parameter data monitoring modules, so that monitoring of specific parameter data can be realized, simultaneous monitoring of laser parameter data and environment parameter data of the laser can be realized, and the running state of the laser can be better reflected.
(3) According to the invention, the outer sides of the plurality of monitoring sub-modules are respectively provided with the light shield for shielding stray light, so that the accuracy of parameter data monitoring is improved.
(4) The industrial personal computer, the server, the instrument controller and the electrical subsystem are arranged on the upper bracket, so that the space of a platform can be saved, the disturbance of the instrument operation process to the environment can be reduced, and the stability of data transmission can be improved; the outside of upper bracket and optical platform is equipped with the shading safety cover to prevent that laser scattering light from exposing and the disturbance of environment to the system, in addition, the metallic material that the shading safety cover adopted helps shielding external electromagnetic signal, improves system stability.
(5) The front-end display subsystem and the rear-end processing subsystem adopt a separated architecture, so that the system has better expansibility and flexibility, the rear-end subsystem can analyze and monitor data, and a front-end display interface displays alarm information when the data is abnormal so as to quickly and accurately abnormal, thereby improving the safety of the system; in addition, the aging degree of the laser and the service life evaluation thereof can be quickly known through analyzing and monitoring the data.
(6) When the system monitors the state of the laser, software and hardware in the system can be restarted automatically, and the integral operation of the whole system is not influenced.
Drawings
FIG. 1 is a schematic diagram of a monitoring system according to the present invention;
FIG. 2 is a schematic diagram of the upper support, optical platform and shade protection cover of the monitoring system of the present invention;
FIG. 3 is a schematic diagram of an electrical subsystem power management design of the monitoring system of the present invention;
FIG. 4 is a schematic diagram of an optical path of each parameter data monitoring module in an optical platform of the monitoring system according to the present invention;
FIG. 5 is a schematic diagram of the interaction of the front and rear subsystems of the monitoring system of the present invention;
FIG. 6 is a schematic diagram of a three-layer architecture of the monitoring system of the present invention;
FIG. 7 is a schematic diagram of the operation timing of the monitoring system according to the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention provides a laser state long-time monitoring system, as shown in fig. 1, which comprises an industrial personal computer 11, a server 12, an instrument controller 13, a plurality of parameter data monitoring modules, an electric subsystem 14, a front-end display subsystem 5 and a back-end processing subsystem 4, wherein the industrial personal computer 11 is used for controlling and collecting data of various optical instruments and opto-mechanical elements in an optical path, the server 12 is used for hosting the operation of the back-end processing subsystem 4, the instrument controller 13 is connected with the industrial personal computer 11 and is used for controlling various optical instruments in the optical path, the plurality of parameter data monitoring modules are used for monitoring environmental parameters and laser parameters of a laser 25 to be detected, the electric subsystem 14 is used for supplying power to various optical instruments and servers in the optical path, the front-end display subsystem 5 is used for interacting with a user and displaying processing results of the back-end processing subsystem 4, and the back-end processing subsystem 4 is communicated with the front-end display subsystem 5 and is used for receiving control instructions of the front-end display subsystem 5 and processing collected data.
As shown in fig. 2, the above-mentioned monitoring system in this embodiment further includes an upper bracket 1, an optical platform 2, and a light shielding protection cover 3 disposed outside the upper bracket 1 and the optical platform 2, where the industrial personal computer 11, the server 12, the instrument controller 13, and the electrical subsystem are disposed on the upper bracket 1, the laser 25 to be tested and the plurality of parameter data monitoring modules are disposed on the optical platform 2, where the light shielding protection cover 3 is mainly used for shielding light, isolating stray light of laser and external environmental disturbance, preventing scattered light of laser from exposing and environmental disturbance to the system, and where the light shielding protection cover 3 is made of metal material, which is helpful for shielding external electromagnetic signals and improving stability of the system. In addition, the display and the alarm lamp are arranged outside the protective cover, the user can observe the acquisition result and the system control through the display, and the alarm lamp at the top can lighten different colors according to the abnormal degree when the system is abnormal. The upper support 1, the optical stage 2 and the light-shielding cover 3 are arranged in a double-layer layout mode as shown in fig. 2, and the light-shielding cover 3 and the upper support 1 are both positioned on a metal support, and the metal support is not contacted with the optical stage 2. The front-end display subsystem 5 and the back-end processing subsystem 4 adopt a front-end and back-end separation architecture, so that the system has better expansibility and flexibility.
The industrial personal computer 11 is used for controlling the instrument controller 13 and the opto-mechanical elements and collecting data, and the number and the positions of the industrial personal computer are determined by the positions and the number of the parameter data monitoring modules on the optical platform 2; the server 12 is the core of the monitoring system and provides functions of data storage, data monitoring, data display, operation control and the like; each instrument controller 13 is a controller of each parameter data monitoring module arranged on the optical platform 2, can be controlled integrally or independently by a system, can save platform space, reduce disturbance of the instrument operation process to the environment and improve the stability of data transmission when being arranged on the upper bracket 1, and each instrument controller 13 is connected with the nearby industrial personal computer 11 through data lines such as USB, RS232/RS485/RS422, LAN and the like; the power supply management design schematic diagram of the electrical subsystem 14 is shown in fig. 3, the electrical subsystem 14 adopts a programmable power supply as an electric control system core to independently supply power to optical instruments in an optical path, the input of the programmable power supply is alternating current 220V/50Hz compatible with 60+/-3 Hz voltage, direct current voltage output by the programmable power supply is independently designed in a module, the modules are physically isolated and not interfered with each other, and the programmable power supply is controlled by an operation console through an RS422 serial port, so that the monitoring of output voltage and current can be realized.
The optical platform 2 is used for fixedly monitoring main parts of long-time operation parameter data of the laser 25, and comprises the laser 25 to be detected, a main light path element, a safety protection module 21, an environment monitoring module 22, a light beam monitoring module 23 and a transmission characteristic module 24, wherein each parameter data monitoring module respectively monitors parameter data of each aspect of the laser 25, can realize simultaneous or independent monitoring, each module transmits the collected laser parameter data to a database of the server 12 in real time, and each parameter data monitoring module names according to the attribute of the monitoring parameter data or the function of an instrument. Each parameter data monitoring module is provided with a single parameter data measuring submodule, a light shielding cover is arranged outside each submodule and used for shielding stray light, monitoring accuracy is improved, each submodule can independently detect specific parameter data and can also realize simultaneous monitoring of environment parameter data and laser parameter data under the control of a laser state system, and the operating state of a laser can be better reflected.
Each sub-module in the safety protection module 21 includes a laser temperature monitoring sub-module 211, a chiller flow monitoring sub-module 212, a laser shutter control sub-module 213, and an alarm protection sub-module 214, which are respectively used for monitoring laser temperature parameter data, chiller flow parameter data, laser shutter control, and data anomaly alarm protection. The laser temperature monitoring submodule 211 adopts a patch type temperature sensor, can be attached to any position of the laser 25 to be detected, the cold water machine flow monitoring submodule 212 adopts a clamping type flow sensor, can be clamped at any position of a cold water machine pipeline, and the alarm protection submodule 214 adopts an alarm mode of combining an alarm lamp and an alarm bell and is positioned at the top end of an external support.
Each of the sub-modules in the environment monitoring module 22 includes an environment vibration monitoring sub-module 221, an environment temperature monitoring sub-module 222, an environment humidity monitoring sub-module 223, and an environment noise monitoring sub-module 224, which are respectively configured to monitor environment vibration parameter data, environment temperature parameter data, environment humidity parameter data, and environment noise parameter data. The environmental vibration monitoring sub-module 221, the environmental temperature monitoring sub-module 222, the environmental humidity monitoring sub-module 223 and the environmental noise monitoring sub-module 224 all adopt response sensors, and can be placed at any position of the optical platform 2 according to the monitoring requirements.
Each sub-module in the beam monitoring module 23 includes a laser energy monitoring sub-module 231, a polarization degree monitoring sub-module 232, a near-far field light spot monitoring sub-module 233, a pulse width & frequency monitoring sub-module 234, and a laser spectrum monitoring sub-module 235, which are respectively used for monitoring laser energy parameter data, polarization degree parameter data, near-far field light spot morphology parameter data, pulse width & frequency parameter data, and laser spectrum parameter data.
Each sub-module in the transmission characteristic module 24 includes a beam directivity monitoring sub-module 241, a beam jitter monitoring sub-module 242, an M2 factor monitoring sub-module 243, and a divergence angle monitoring sub-module 244, which are respectively configured to monitor beam directivity parameter data, beam jitter parameter data, M2 factor parameter data, and divergence angle parameter data.
The above parameter data monitoring modules can monitor the parameter data simultaneously, and the monitoring of the environmental parameter data and the laser parameter data can better reflect the operation state of the laser 25. The optical path layout of each parameter data monitoring module on the optical platform 2 is shown in fig. 4, and besides each monitoring module, lenses, mirrors, light collectors, collimating lasers and the like necessary for the main optical path are also placed on the optical platform 22.
As shown in fig. 5, the front subsystem is used to display the test results in real time, and communicates with the rear subsystem through the API. The front-end system adopts a front-end page based on a Vue. Js frame, and combines with a Bootstrap frame to realize responsive design, so that the system shows good user experience on different devices.
The rear terminal system comprises a data acquisition module, a service management module and a data analysis and monitoring module and is used for data storage, monitoring and instruction issuing.
The data acquisition module takes on tasks of data acquisition and instruction execution, as shown in fig. 5, adopts a distributed deployment dnsmasq domain name resolution and NTP time synchronization mode, and acquires and transmits data to the service management module through Labview program control instruments of the sub-modules.
The business management module mainly manages and controls various tasks of the system, including data transmission and storage, instruction issuing, log recording and the like. As shown in FIG. 5, mysql is adopted as a service database, hibernate is adopted as an ORM framework, redis is adopted as a system cache, kafka is adopted as a message queue, and shiro is adopted as authentication, so that the design concept and architecture mode realize high availability and high security of the system.
The data analysis and monitoring module is mainly responsible for carrying out real-time processing and analysis on the acquired data, the bridgevector can carry out real-time processing and analysis according to preset rules, if abnormal conditions are found, alarm information is sent to the service management module, the service management module sends the alarm information to the front terminal system, the alarm information is displayed on a display interface of the front end, and the like, so that monitoring safety is guaranteed.
The three-level architecture constructed by the system shown in fig. 6 is controlled by a central integrated control system, the functions of self calibration and alarm protection of data acquisition, unified or independent control of instruments, processing and monitoring of data and the like can be realized, the system adopts a distributed deployment strategy, different laser parameters are monitored by independent monitoring modules, and the system is divided into a safety protection module 21, an environment monitoring module 22, a light beam measuring module 23 and a transmission characteristic module 24 downwards according to the action of the instruments and the properties of the measured parameters. Each monitoring module can run simultaneously or independently under the system instruction, the collected environmental parameters and laser state parameters are uploaded to the monitoring system, and when the system state or the laser 25 state is abnormal, five levels of system protection are adopted. Correcting data: taking part of the acquisition modules as an example, the controller carries out state judgment on the acquired data, and when abnormal data are encountered, the abnormal data are automatically screened out and corrected, so that the normal data are ensured to be acquired and displayed; restarting the software: when each module or sensor software runs, if the module or sensor software is closed accidentally, the independent software can be restarted, and the integrated display and the system running are not affected; restarting the hardware: when each module or sensor hardware operates, the independent hardware is restarted, so that the integrated display and the system operation are not influenced; and (3) power-off protection: after the parameter threshold value set by the user at the front end is compared with the data collected by each module, the user exceeds the set threshold value, and the user encounters the similar emergency condition and adopts emergency power-off protection; and (3) automatic alarm: when the parameters of the laser 25 are abnormal, a whistle or a light is turned on to give an alarm. The protection strategy is judged by the system according to the user preset.
Fig. 7 is a schematic diagram of an operation timing of the monitoring system according to the present embodiment, where the operation timing of the monitoring system is as follows: the system is powered on, the optical machine part is initialized and reset and calibrated, each module is self-calibrated and collimated, the laser 25 to be tested emits light, the optical gate 26 is opened, each detector collects, displays, analyzes and stores data, the system is operated for a long time, the environmental factors are monitored in real time, faults are screened and removed, alarming and power-off protection are carried out when the conditions are met, and the optical gate 26 is closed after the monitoring is finished and the system is shut down.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
Claims (10)
1. The utility model provides a laser state long-time monitoring system, its characterized in that includes industrial computer (11), server (12), instrument controller (13), a plurality of parameter data monitoring module, electric subsystem (14), front end display subsystem (5) and backend processing subsystem (4), industrial computer (11) are arranged in the control and the data acquisition of each optical instrument and opto-mechanical element in the light path that awaits measuring laser instrument (25) are located, server (12) are arranged in supporting front end display subsystem (5) and the operation of backend processing subsystem (4), instrument controller (13) with industrial computer (11) are connected for each optical instrument in the control light path, a plurality of parameter data monitoring module are used for monitoring the environmental parameter and the laser parameter of awaiting measuring laser instrument (25), electric subsystem (14) are arranged in each optical instrument and server (12) in the light path, front end display subsystem (5) are used for with user interaction and display the processing result of backend processing subsystem (4), backend processing subsystem (4) and front end display subsystem (5) carry out communication with front end display subsystem (5) and carry out the control instruction processing.
2. The system for long-term monitoring of the state of a laser according to claim 1, further comprising an upper bracket (1) for mounting the industrial personal computer (11), the server (12), the instrument controller (13) and the electrical subsystem (14) on the upper bracket (1).
3. A system for long-term monitoring of the status of a laser according to claim 2, characterized in that said number of parameter data monitoring modules are mounted on an optical platform (2) under said upper support (1).
4. A system for monitoring the state of a laser for a long time according to claim 3, wherein the upper bracket (1) and the outside of the optical platform (2) are provided with a light shielding protection cover (3).
5. The system for monitoring the state of a laser for a long time according to claim 4, wherein a display and a warning lamp are arranged outside the shading protection cover (3).
6. A system for monitoring the status of a laser over a long period of time according to claim 4, wherein the light shielding cover (3) is made of metal.
7. The system according to claim 1, wherein the plurality of parameter data monitoring modules include a safety protection module (21), an environment monitoring module (22), a beam monitoring module (23), and a transmission characteristic module (24), the safety protection module (21) includes a laser temperature monitoring sub-module (211), a chiller flow monitoring sub-module (212), a laser shutter control sub-module (213), and an alarm protection sub-module (214), the environment monitoring module (22) includes an environment vibration monitoring sub-module (221), an environment temperature monitoring sub-module (222), an environment humidity monitoring sub-module (223), and an environment noise monitoring sub-module (224), the beam monitoring module (23) includes a laser energy monitoring sub-module (231), a polarization degree monitoring sub-module (232), a near-far field spot monitoring sub-module (233), a pulse width & frequency monitoring sub-module (234), and a laser spectrum monitoring sub-module (235), and the transmission characteristic module (24) includes a beam directivity monitoring sub-module (241), a jitter monitoring sub-module (242), an M2 factor monitoring sub-module (243), and a divergence angle monitoring sub-module (224), each of which is used for monitoring parameters of the laser data of the environmental data.
8. The system according to claim 7, wherein the outside of each sub-module of the safety protection module (21), the environment monitoring module (22), the beam monitoring module (23) and the transmission characteristic module (24) is provided with a light shielding cover for shielding stray light.
9. A laser condition long time monitoring system according to claim 1, characterized in that the front end display subsystem (5) communicates with the back end processing subsystem (4) via an API.
10. The system according to claim 1, wherein the back-end processing subsystem (4) comprises a data acquisition module (41), a service management module (42) and a data analysis and monitoring module (43), and the back-end processing subsystem (4) is used for data acquisition, instruction issuing and data processing and analysis.
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| CN202311554209.8A CN117629585A (en) | 2023-11-21 | 2023-11-21 | Laser state long-time monitoring system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716550A (en) * | 2015-03-12 | 2015-06-17 | 大族激光科技产业集团股份有限公司 | Laser device control method and system, laser device and laser processing equipment |
| CN106817393A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院大连化学物理研究所 | Chemical laser EPA long distance control system and its long-distance monitoring method |
| US20190260175A1 (en) * | 2018-02-22 | 2019-08-22 | Lumentum Operations Llc | Fiber optic device operational monitoring |
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- 2023-11-21 CN CN202311554209.8A patent/CN117629585A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716550A (en) * | 2015-03-12 | 2015-06-17 | 大族激光科技产业集团股份有限公司 | Laser device control method and system, laser device and laser processing equipment |
| CN106817393A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院大连化学物理研究所 | Chemical laser EPA long distance control system and its long-distance monitoring method |
| US20190260175A1 (en) * | 2018-02-22 | 2019-08-22 | Lumentum Operations Llc | Fiber optic device operational monitoring |
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| Title |
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| 刘莲花 等: "激光质谱系统中激光器分系统远程控制系统研制", 激光杂志, no. 04, 30 April 2018 (2018-04-30), pages 23 - 26 * |
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