CN113504529A - Laser radar safety control device - Google Patents
Laser radar safety control device Download PDFInfo
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- CN113504529A CN113504529A CN202110788259.7A CN202110788259A CN113504529A CN 113504529 A CN113504529 A CN 113504529A CN 202110788259 A CN202110788259 A CN 202110788259A CN 113504529 A CN113504529 A CN 113504529A
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- 230000001276 controlling effect Effects 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 6
- 230000036760 body temperature Effects 0.000 claims description 3
- 230000000877 morphologic effect Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a device for controlling the safety of a laser radar, which relates to the technical field of laser radars and comprises a biological sensor, a data acquisition and control system, a laser adjusting module and a detector adjusting module; the biological sensor is used for providing signal input for the device and sensing and identifying the characteristic information of the organism within a meter close to the laser radar system; the data acquisition and control system is used for identifying the characteristic information of the organism and controlling the states of the laser regulating module and the detector regulating module. The invention is based on the organism identification technology, quickly senses the physical sign of the organism, automatically and intelligently links with a laser control system, and changes the working state of the laser radar in a buffering way by continuously and gradually adjusting the control current or voltage signal of the laser, thereby not only effectively protecting the organism invading the laser radar system, but also effectively protecting the laser radar system.
Description
Technical Field
The invention relates to the technical field of laser radars, in particular to a device for safety control of a laser radar.
Background
Lidar is an active modern optical remote sensing device, and is an extension of traditional radio or microwave radars to the optical frequency band. The atmospheric detection laser radar takes laser as a transmitting light source, and detects various atmospheric factors by quantitatively analyzing laser atmospheric echo signals according to physical processes of scattering, absorption and the like of the atmosphere on the laser. Compared with the detection source of the traditional radar, the laser has the characteristics of high brightness, high collimation, short pulse and the like, so that the laser radar has high space and time resolution capability and high detection sensitivity, and is very suitable for atmospheric detection and research.
At present, environment, meteorological institutions, scientific research institutions and the like widely utilize laser radars to observe and research, and more laser radar types can be divided into the following types: atmospheric molecule detection lidar, aerosol and cloud detection lidar, doppler lidar; for the various laser radars, the safety problem is faced in the actual use process, and due to the characteristics of laser energy, invisibility of laser wavelength and the like, the laser radars often have damage events to human bodies or other organisms. In order to effectively protect the safety of the laser radar, especially to effectively avoid the damage of the laser to the human body, various attempts have been made at home and abroad. Installing an optical isolation device: for example, an isolation protection device is added in a light path for passing light, and all parts of a human body are physically isolated in a laser emission or irradiation area. Install manual control device additional: the laser work is controlled manually, and when a human body approaches the laser radar, the laser is forcibly turned off through a physical button and the like.
The traditional technology can achieve the purpose of effectively protecting the safety of the laser radar, but still has the following problems:
the optical isolation device who installs additional can increase laser radar system's complexity, leads to laser radar system at installation, debugging in-process, can't investigate the light path succinctly, can't accomplish the debugging fast, consumes a large amount of human input, and the professional quality requirement to personnel is too high simultaneously, is unfavorable for the business ization operation of administrative departments such as ecological environment, weather, scientific research institute.
The manual control device who installs additional, to people's energy, attention requirement higher, when the experiment procedure is complicated, can't compromise the position that personnel appear or remove, lead to the damage incident still to take place.
No matter be optical isolation device or manual control device, all can cause "hard damage" to laser radar's operation, there is the possibility of compulsory shutdown laser radar operation promptly, and this kind of mode can harm laser radar complete machine system's life-span greatly, leads to a large amount of fund investments and extravagant.
Disclosure of Invention
The invention aims to provide a device for safely controlling a laser radar so as to achieve the aim of protecting human health and living animals from laser injury.
In order to achieve the purpose, the invention provides the following technical scheme:
a device for controlling the safety of a laser radar comprises a biological sensor, a data acquisition and control system, a laser adjusting module and a detector adjusting module; the biological sensor is used for providing signal input for the device and sensing and identifying the characteristic information of the organism within a meter close to the laser radar system; the data acquisition and control system is used for identifying the characteristic information of the organism and controlling the states of the laser adjusting module and the detector adjusting module; the laser adjusting module is used for adjusting current and voltage data of the laser in a linear attenuation mode under the control of the data acquisition and control system; the detector adjusting module is used for adjusting the voltage control signal of the detector under the control of the data acquisition and control system.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the biological sensor comprises an infrared recognition module and an audio-video shooting module; the infrared identification module is used for identifying organisms through infrared rays; the audio-video shooting module is used for shooting images of the invading organisms.
In one alternative: the biological characteristic information comprises body temperature, morphological characteristics and moving speed.
In one alternative: the data acquisition and control system comprises a data processing module and a signal control module, wherein the data processing module is used for rapidly carrying out validity identification on invasive organism information and classifying whether an invasive organism is a living organism or not; and the signal control module is used for controlling the laser current or voltage regulating system and controlling the detector voltage system after biological living body information is extracted.
In one alternative: the device also comprises an alarm module which is electrically connected with the data acquisition and control system and is controlled by the data acquisition and control system to send out warning sound.
Compared with the prior art, the invention has the following beneficial effects:
after the device is applied to a laser radar system, the safety of a laser can be automatically protected. No manual intervention or intervention is required. The device of the invention implants the invading organism with an algorithm, quickly identifies the characteristics of the invading organism, and effectively carries out safety operation. The device synchronously controls the laser and the detector of the laser radar, and the adjusting amplitude is gradually changed, so that the service life and the safety of key parts of the laser radar system are effectively protected. The device can effectively protect the safety of organisms within the range of 1 meter of the laser radar system.
Drawings
Fig. 1 is a schematic view of the overall structure in one embodiment of the present invention.
Notations for reference numerals: the biological sensor comprises a biological sensor 1, a data acquisition and control system 2, a laser adjusting module 3, a detector adjusting module 4 and an alarm module 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
In one embodiment, as shown in fig. 1, an apparatus for controlling safety of laser radar comprises a biological sensor 1, a data acquisition and control system 2, a laser regulation module 3 and a detector regulation module 4; the biological sensor 1 is used for providing signal input for the device and sensing and identifying the characteristic information of organisms within 1 meter close to the laser radar system; the data acquisition and control system 2 is used for identifying the characteristic information of the organism and controlling the states of the laser regulating module 3 and the detector regulating module 4; the laser adjusting module 3 is used for adjusting current and voltage data of the laser in a linear attenuation mode under the control of the data acquisition and control system 2; the detector adjusting module 4 is used for adjusting a voltage control signal of the detector under the control of the data acquisition and control system 2;
in the embodiment, the security threat of the invading organism is judged by identifying and sensing the characteristics of the invading organism, and the laser regulating module 3 is controlled to regulate the current and voltage data of the laser in a linear attenuation mode and the detector regulating module 4 is controlled to regulate the voltage control signal of the detector; so as to avoid invasion of invading organisms and effectively protect the service life and safety of key components of the laser radar system and the safety of organisms around the radar;
in one embodiment, as shown in fig. 1, the biological sensor 1 comprises an infrared recognition module and an audio-video shooting module; the infrared identification module is used for identifying organisms through infrared rays; the audio-video shooting module is used for shooting images of an invading organism; the sensing range of the biological sensor 1 is 1 m;
in one embodiment, as shown in fig. 1, the biometric information includes body temperature, morphological characteristics, and moving speed.
In one embodiment, as shown in fig. 1, the data acquisition and control system 2 includes a data processing module and a signal control module, wherein the data processing module is used for rapidly performing validity identification on invasive organism information and classifying whether the invasive organism is a living organism; the signal control module is used for controlling a laser current or voltage regulating system and controlling a detector voltage system after biological living body information is extracted; thereby effectively protecting the organisms;
in one embodiment, as shown in fig. 1, the device further comprises an alarm module 5, wherein the alarm module 5 is electrically connected with the data acquisition and control system 2 and is controlled by the data acquisition and control system to emit a warning sound; the data acquisition and control system 2 is linked with the alarm module 5 at the same time to make a sound to drive away the organism or prompt the organism.
Laser current or voltage regulation, generally, lasers pump a high quality laser beam by exciting current or high voltage when working, and therefore, current or voltage signals are the control source of the lasers. When the laser current or voltage regulating system receives a signal of the data acquisition and control system, the regulating operation is carried out, generally, the current or voltage attenuation is carried out rapidly and linearly, and the attenuation program is realized by programming so as to achieve the aim of automatic and intelligent control;
and (3) voltage regulation of the detector: the detector in the laser radar system generally belongs to a single-photon or weak-signal detector, and when the detector encounters strong light or rapid change of photon number, the probability of damage of the detector is high. After the control adjustment of the laser is performed in the previous step, the voltage control signal of the detector is also adjusted, and the voltage of the adjustment voltage is automatically reduced to 0V within 2 seconds.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure 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 disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (5)
1. A device for controlling the safety of a laser radar is characterized by comprising a biological sensor, a data acquisition and control system, a laser adjusting module and a detector adjusting module;
the biological sensor is used for providing signal input for the device and sensing and identifying the characteristic information of the organism within a meter close to the laser radar system;
the data acquisition and control system is used for identifying the characteristic information of the organism and controlling the states of the laser adjusting module and the detector adjusting module;
the laser adjusting module is used for adjusting current and voltage data of the laser in a linear attenuation mode under the control of the data acquisition and control system;
the detector adjusting module is used for adjusting the voltage control signal of the detector under the control of the data acquisition and control system.
2. The lidar safety controlled device according to claim 1, wherein the biometric sensor comprises an infrared recognition module and an audio-video shooting module;
the infrared identification module is used for identifying organisms through infrared rays;
the audio-video shooting module is used for shooting images of the invading organisms.
3. The lidar safety controlled apparatus of claim 1, wherein the biometric information comprises body temperature, morphological characteristics, and speed of movement.
4. The lidar safety control device according to claim 3, wherein the data acquisition and control system comprises a data processing module and a signal control module;
the data processing module is used for rapidly carrying out validity identification on the information of the invasive organism and classifying whether the invasive organism is a living organism or not;
and the signal control module is used for controlling the laser current or voltage regulating system and controlling the detector voltage system after biological living body information is extracted.
5. The lidar safety control device according to any of claims 1 to 4, further comprising an alarm module, wherein the alarm module is electrically connected to the data acquisition and control system and is controlled by the data acquisition and control system to emit a warning sound.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110788259.7A CN113504529A (en) | 2021-07-13 | 2021-07-13 | Laser radar safety control device |
| ZA2022/05315A ZA202205315B (en) | 2021-07-13 | 2022-05-13 | Lidar safety control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110788259.7A CN113504529A (en) | 2021-07-13 | 2021-07-13 | Laser radar safety control device |
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| Publication Number | Publication Date |
|---|---|
| CN113504529A true CN113504529A (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110788259.7A Pending CN113504529A (en) | 2021-07-13 | 2021-07-13 | Laser radar safety control device |
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| Country | Link |
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| CN (1) | CN113504529A (en) |
| ZA (1) | ZA202205315B (en) |
Citations (7)
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| CN205912308U (en) * | 2016-08-08 | 2017-01-25 | 成都希德电子信息技术有限公司 | Safe type sensing lighting system |
| CN106506093A (en) * | 2016-11-28 | 2017-03-15 | 中车株洲电力机车研究所有限公司 | A kind of FSO communication systems |
| CN207440283U (en) * | 2016-08-02 | 2018-06-01 | 无锡中科光电技术有限公司 | A kind of skylight guard system for controlling laser start and stop and security protection |
| CN110612456A (en) * | 2017-03-28 | 2019-12-24 | 卢米诺技术公司 | Method for dynamically controlling laser power |
| CN112305519A (en) * | 2020-10-19 | 2021-02-02 | 南京理工大学 | Laser radar rapid detection system based on silicon photomultiplier |
| WO2021026709A1 (en) * | 2019-08-12 | 2021-02-18 | 深圳市速腾聚创科技有限公司 | Laser radar system |
| CN112394339A (en) * | 2020-11-16 | 2021-02-23 | 江苏亮点光电研究有限公司 | Control circuit applied to cloud detection radar |
-
2021
- 2021-07-13 CN CN202110788259.7A patent/CN113504529A/en active Pending
-
2022
- 2022-05-13 ZA ZA2022/05315A patent/ZA202205315B/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207440283U (en) * | 2016-08-02 | 2018-06-01 | 无锡中科光电技术有限公司 | A kind of skylight guard system for controlling laser start and stop and security protection |
| CN205912308U (en) * | 2016-08-08 | 2017-01-25 | 成都希德电子信息技术有限公司 | Safe type sensing lighting system |
| CN106506093A (en) * | 2016-11-28 | 2017-03-15 | 中车株洲电力机车研究所有限公司 | A kind of FSO communication systems |
| CN110612456A (en) * | 2017-03-28 | 2019-12-24 | 卢米诺技术公司 | Method for dynamically controlling laser power |
| WO2021026709A1 (en) * | 2019-08-12 | 2021-02-18 | 深圳市速腾聚创科技有限公司 | Laser radar system |
| CN112305519A (en) * | 2020-10-19 | 2021-02-02 | 南京理工大学 | Laser radar rapid detection system based on silicon photomultiplier |
| CN112394339A (en) * | 2020-11-16 | 2021-02-23 | 江苏亮点光电研究有限公司 | Control circuit applied to cloud detection radar |
Non-Patent Citations (2)
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| 杜祥琬: "高技术要览——激光卷", 1 January 2003, 中国科学技术出版社, pages: 634 - 643 * |
| 王增斌等: "量子工程导论", 1 December 2017, 中国原子能出版社, pages: 259 - 265 * |
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| ZA202205315B (en) | 2022-08-31 |
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