CN111050118A - Underground light control method based on video image induction - Google Patents
Underground light control method based on video image induction Download PDFInfo
- Publication number
- CN111050118A CN111050118A CN201911011841.1A CN201911011841A CN111050118A CN 111050118 A CN111050118 A CN 111050118A CN 201911011841 A CN201911011841 A CN 201911011841A CN 111050118 A CN111050118 A CN 111050118A
- Authority
- CN
- China
- Prior art keywords
- image
- value
- gray scale
- camera
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000006698 induction Effects 0.000 title claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000000605 extraction Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000003708 edge detection Methods 0.000 claims abstract description 8
- 230000011218 segmentation Effects 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 241001270131 Agaricus moelleri Species 0.000 claims description 3
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Studio Devices (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses an underground light control method based on video image induction, which comprises the following steps that S1, a camera image is transmitted to a hard disk video recorder through a network; s2, image processing of the hard disk video recorder and configuration of an alarm output value camera; s3, the camera alarms and outputs to the relay; s4, a relay controls the on-off state of the light circuit, the invention has scientific and reasonable structure and safe and convenient use, the underground existing equipment is utilized to realize the lighting according to the need on the premise of not repeatedly investing repeated construction, the electric energy is saved, the video monitoring system is one of six systems which must be built underground in a mine, the on-off control can be realized by utilizing the mobile detection and alarm output functions of the video monitoring video recorder, the purpose of controlling the light is achieved, and the original image, the gray scale, the filtering, the edge detection, the segmentation and the characteristic value extraction are carried out on the image processing, thus the invention is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of light control, in particular to an underground light control method based on video image induction.
Background
The mine is a general name of a shaft way, a chamber, equipment, a ground building and a structure forming an underground coal mine production system, inclined shafts, vertical shafts, adit and the like in underground mining development of the mine are also called as mines sometimes, the field range size, the mine production capacity and the service life of each mine are determined, and the determination is one of the key problems which need to be solved in the self-design of the mine, movable lamps are adopted on mobile mechanical equipment such as mining, loading machinery, electric locomotives and the like to provide local illumination during operation, most of the lamps are of mine explosion-proof type, have the characteristics of good shock resistance, large light spots, high brightness, firmness, durability, switches and the like, most of light sources are incandescent bulbs, a few high-pressure mercury lamps are used for supplying water to a coal face for illumination, and projection lamps on the electric locomotives have good reflectors to ensure that the illumination distance exceeds 40m and are convenient to disassemble, firmly fixed tail lights, and most of them are lights used in mines;
at present, an illuminating lamp used in a mine is controlled underground by combining a microprocessor with a human body infrared remote control and a voice control switch, so that illumination can be realized, but an independent control system needs to be built through comprehensive wiring, and more equipment and higher cost are realized.
Disclosure of Invention
The invention provides an underground light control method based on video image induction, which can effectively solve the problems that the existing illuminating lamp used in a mine is used for underground light control by combining a microprocessor with human body infrared remote control and a voice control switch, illumination can be realized, but an independent control system needs to be built through comprehensive wiring, and the equipment is more and the cost is higher.
In order to achieve the purpose, the invention provides the following technical scheme: a downhole light control method based on video image induction comprises the following steps:
s1, transmitting the camera image to the hard disk video recorder through the network;
s2, image processing of the hard disk video recorder and configuration of an alarm output value camera;
s3, the camera alarms and outputs to the relay;
and S4, controlling the state of the light line switch by the relay.
According to the above technical solution, in step S1, the camera transmits the graphics through the network, and uses the optical cable as the transmission medium, the network layer of the networking system should support the IP protocol, the transmission layer should support the TCP and UDP protocols, the audio/video stream should support the RTP/RTCP protocol when being transmitted on the IP-based network, and the data encapsulation format of the audio/video stream should meet the requirements of the GB/T28181-2011 standard;
when information is transmitted through an IP network, the end-to-end information delay time meets the following requirements, and the end-to-end information delay time between front-end equipment and corresponding equipment of a monitoring center directly accessed by signals is not more than 2 s;
the end-to-end information delay time between the front-end equipment and the user terminal equipment is not more than 4 s.
According to the technical scheme, the information delay time comprises the time spent in the processes of information acquisition, encoding, network transmission, decoding and display of the information receiving end of the sending end.
According to the above technical solution, the image processing in step S2 includes extracting an original image, graying, filtering, edge detection, segmentation, and extracting feature values.
According to the above technical solution, in the gray scale operation, due to the limitation and interference of various conditions on the image during shooting, the gray scale value of the image is often not completely matched with the actual scene, which directly affects the subsequent processing of the image, and the reason for this effect is mainly that the gray scales of the central area and the edge area of the image are unbalanced due to the difference of the distance of the object to be shot, the gray scale distortion of the image is generated due to the large difference of the sensitivity of each point of the camera during scanning, and the gray scale change range of the image is narrow due to insufficient exposure, at this time, the gray scale correction method can be adopted to process, so as to enhance the change range of the gray scale and enrich the gray scale level, so as to enhance the contrast and the resolution of the image, and the gray scale range is mostly limited to r (50, 200).
According to the technical scheme, the filtering is calculated through mean filtering, and the mean value is obtained after multiple times of calculation.
According to the technical scheme, the difference value of the edge detection central point pixel value and the neighborhood average value is set as the threshold value, only the point which is larger than the threshold value can be replaced by the neighborhood average value, and when the difference value is not larger than the threshold value, the original value is still kept, so that the image blurring caused by averaging is reduced.
According to the above technical solution, the threshold is 128.
According to the technical scheme, the extracted characteristic value is extracted after the divided characters are normalized;
the image characteristics can be divided into natural characteristics and artificial characteristics, wherein the former can be determined by the visual representation of the image, and the latter is the result of special processing and measurement of the image, and both are attributes with certain distribution characteristics;
the characteristic extraction is to process and analyze the input information contained in the mode, and extract the information which is not easily interfered by random factors as the characteristic of the mode, and the extraction process is to remove redundant information, so that the method has the effects of improving the identification precision, reducing the operation and improving the operation speed.
According to the technical scheme, the alarm output of the camera in the step S3 is a switching value signal to the relay, and the relay is a 24V relay connected through a 24V direct converter.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, utilizes the existing underground equipment to realize lighting according to needs without repeated investment and repeated construction, saves electric energy, the video monitoring system is one of six systems which must be built underground of a mine, the switch control can be realized by utilizing the mobile detection and alarm output functions of the video monitoring video recorder, the purpose of controlling the light is achieved, the image processing is carried out to extract the original image, the gray level, the filtering, the edge detection, the segmentation and the characteristic value extraction, thereby improving the speed of the image processing, the characteristic extraction is to process and analyze the input information contained in the mode, the information which is not easily interfered by random factors is extracted as the characteristic of the mode, the extraction process is the process of removing redundant information, the invention has the functions of improving the identification precision, reducing the operation and improving the operation speed, and the alarm is output to a relay through a camera, the relay controls the state of the light line switch to form a control loop, and the lamp is suitable for popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic flow chart of the method steps of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1, the invention provides a technical solution, and an underground light control method based on video image sensing comprises the following steps:
s1, transmitting the camera image to the hard disk video recorder through the network;
s2, image processing of the hard disk video recorder and configuration of an alarm output value camera;
s3, the camera alarms and outputs to the relay;
and S4, controlling the state of the light line switch by the relay.
According to the above technical solution, in step S1, the camera transmits the graphics through the network, and uses the optical cable as the transmission medium, the network layer of the networking system should support the IP protocol, the transmission layer should support the TCP and UDP protocols, the video and audio stream should support the RTP/RTCP protocol when being transmitted on the IP-based network, and the data encapsulation format of the video and audio stream should meet the requirements of the GB/T28181 and 2011 standards;
when information is transmitted through an IP network, the end-to-end information delay time meets the following requirements, and the end-to-end information delay time between front-end equipment and corresponding equipment of a monitoring center directly accessed by signals is not more than 2 s;
the end-to-end information delay time between the front-end equipment and the user terminal equipment is not more than 4 s.
According to the technical scheme, the information delay time comprises the time spent in the processes of information acquisition, encoding, network transmission, decoding and display of the information receiving end of the sending end.
According to the above technical solution, the image processing in step S2 includes extracting an original image, graying, filtering, edge detection, segmentation, and extracting feature values.
According to the technical scheme, in the gray scale operation, due to the fact that an image is limited and interfered by various conditions when being shot, the gray scale value of the image is often not completely matched with an actual scene, the subsequent processing of the image is directly influenced, the influence is mainly caused by the fact that the gray scales of a central area and an edge area of the image are unbalanced due to the fact that the distance of a shot object is different, the gray scale distortion of the image is generated due to the fact that the sensitivity of each point of a camera is large when the camera scans, the gray scale change range of the image is narrow due to insufficient exposure, then the gray scale correction method can be adopted for processing, the change range of the gray scale is enlarged, the gray scale level is enriched, the contrast and the resolution of the image are enhanced, and the gray scale value range is mostly limited to r (50, 200).
According to the technical scheme, the filtering is calculated through mean filtering, and the mean value is obtained after multiple times of calculation.
According to the technical scheme, the threshold value is set for the difference value between the pixel value of the edge detection central point and the neighborhood average value, only the points which are larger than the threshold value can be replaced by the neighborhood average value, and when the difference value is not larger than the threshold value, the original value is still kept, so that the image blurring caused by averaging is reduced.
According to the above technical solution, the threshold is 128.
According to the technical scheme, extracting characteristic values, normalizing the segmented characters and extracting the normalized characters;
the image characteristics can be divided into natural characteristics and artificial characteristics, wherein the former can be determined by the visual representation of the image, and the latter is the result of special processing and measurement of the image, and both are attributes with certain distribution characteristics;
the characteristic extraction is to process and analyze the input information contained in the mode, and extract the information which is not easily interfered by random factors as the characteristic of the mode, and the extraction process is to remove redundant information, so that the method has the effects of improving the identification precision, reducing the operation and improving the operation speed.
According to the technical scheme, the camera alarm is output to the relay in the step S3 to be a switching value signal, and the relay is connected with the 24V relay through the 24V direct converter.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, utilizes the existing underground equipment to realize lighting according to needs without repeated investment and repeated construction, saves electric energy, the video monitoring system is one of six systems which must be built underground of a mine, the switch control can be realized by utilizing the mobile detection and alarm output functions of the video monitoring video recorder, the purpose of controlling the light is achieved, the image processing is carried out to extract the original image, the gray level, the filtering, the edge detection, the segmentation and the characteristic value extraction, thereby improving the speed of the image processing, the characteristic extraction is to process and analyze the input information contained in the mode, the information which is not easily interfered by random factors is extracted as the characteristic of the mode, the extraction process is the process of removing redundant information, the invention has the functions of improving the identification precision, reducing the operation and improving the operation speed, and the alarm is output to a relay through a camera, the relay controls the state of the light line switch to form a control loop, and the lamp is suitable for popularization and use.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A downhole light control method based on video image induction is characterized in that: the method comprises the following steps:
s1, transmitting the camera image to the hard disk video recorder through the network;
s2, image processing of the hard disk video recorder and configuration of an alarm output value camera;
s3, the camera alarms and outputs to the relay;
and S4, controlling the state of the light line switch by the relay.
2. The method according to claim 1, wherein in step S1, the camera transmits the pattern through the network, and uses the optical cable as the transmission medium, the network layer of the networking system should support the IP protocol, the network layer should support the TCP and UDP protocols, the RTP/RTCP protocol should be supported when the video and audio stream is transmitted over the IP-based network, and the data encapsulation format of the video and audio stream should conform to the GB/T28181-2011 standard requirements;
when information is transmitted through an IP network, the end-to-end information delay time meets the following requirements, and the end-to-end information delay time between front-end equipment and corresponding equipment of a monitoring center directly accessed by signals is not more than 2 s;
the end-to-end information delay time between the front-end equipment and the user terminal equipment is not more than 4 s.
3. The downhole light control method based on video image sensing as claimed in claim 2, wherein the information delay time comprises time elapsed in information collection, encoding, network transmission, decoding and display processes of a transmitting end, an information receiving end.
4. The method as claimed in claim 1, wherein the image processing in step S2 includes extracting original image, gray scale, filtering, edge detection, segmentation and feature value extraction.
5. The method for controlling the underground lighting based on the video image sensing as claimed in claim 4, wherein the gray scale operation is limited and interfered by various conditions during the shooting, the gray scale value of the image is often not completely matched with the actual scene, which directly affects the subsequent processing of the image, and the reason for the effect is mainly that the gray scales of the central area and the edge area of the image are unbalanced due to the difference between the distance of the object to be shot, the gray scale distortion of the image is generated due to the great difference of the sensitivity of each point when the camera scans, and the gray scale change range of the image is very narrow due to the underexposure, and then the gray scale correction method can be used to process the image, so as to enhance the change range of the gray scale and enrich the gray scale level, so as to enhance the contrast and the resolution of the image, and the gray scale value range is mostly limited to r (50, 200) and (3) removing the solvent.
6. The downhole light control method based on video image sensing according to claim 4, wherein the filtering is calculated by mean filtering, and the mean value is obtained after a plurality of calculations.
7. The downhole light control method based on video image sensing of claim 4, wherein the difference value between the pixel value of the edge detection center point and the neighborhood average value thereof sets a threshold value, only the points greater than the threshold value can be replaced by the neighborhood average value, and when the difference value is not greater than the threshold value, the original value is still kept, thereby reducing the image blur caused by averaging.
8. A downhole light control method based on video image sensing according to claim 7, wherein the threshold value is 128.
9. The downhole light control method based on video image sensing according to claim 4, wherein the extracted characteristic value is extracted after normalizing the segmented characters;
the image characteristics can be divided into natural characteristics and artificial characteristics, wherein the former can be determined by the visual representation of the image, and the latter is the result of special processing and measurement of the image, and both are attributes with certain distribution characteristics;
the characteristic extraction is to process and analyze the input information contained in the mode, and extract the information which is not easily interfered by random factors as the characteristic of the mode, and the extraction process is to remove redundant information, so that the method has the effects of improving the identification precision, reducing the operation and improving the operation speed.
10. The downhole light control method based on video image sensing of claim 1, wherein the camera alarm output to the relay in step S3 is a switching value signal, and the relay is a 24V relay connected through a 24V direct converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011841.1A CN111050118A (en) | 2019-10-23 | 2019-10-23 | Underground light control method based on video image induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011841.1A CN111050118A (en) | 2019-10-23 | 2019-10-23 | Underground light control method based on video image induction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111050118A true CN111050118A (en) | 2020-04-21 |
Family
ID=70232745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911011841.1A Pending CN111050118A (en) | 2019-10-23 | 2019-10-23 | Underground light control method based on video image induction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111050118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112766267A (en) * | 2021-02-24 | 2021-05-07 | 人机互联网络(深圳)有限公司 | Diversified automobile service O2O system based on deep operation management |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050097478A1 (en) * | 2003-11-03 | 2005-05-05 | Openpeak Inc. | User interface for multi-device control |
| WO2009017687A1 (en) * | 2007-07-26 | 2009-02-05 | Objectvideo, Inc. | Video analytic rule detection system and method |
| CN102447888A (en) * | 2011-10-28 | 2012-05-09 | 江苏物联网研究发展中心 | Indoor intelligent video monitoring system based on LED (Light-Emitting Diode) controllable supplementary lighting |
| KR20120060339A (en) * | 2010-12-02 | 2012-06-12 | 김주환 | Closed circuit camera system using narrow angle lens and wide angle lens and practicing method thereof |
| CN202488821U (en) * | 2012-02-17 | 2012-10-10 | 北京中航讯科技股份有限公司 | Scriptorium lighting lamp control system |
| CN103942557A (en) * | 2014-01-28 | 2014-07-23 | 西安科技大学 | Coal-mine underground image preprocessing method |
| CN204360171U (en) * | 2015-01-03 | 2015-05-27 | 梧州市气象局 | DVR is utilized to realize the visual system controlled equipment |
| CN207677869U (en) * | 2017-12-01 | 2018-07-31 | 东亨信息科技股份有限公司 | A kind of autolights system based on mobile detection |
-
2019
- 2019-10-23 CN CN201911011841.1A patent/CN111050118A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050097478A1 (en) * | 2003-11-03 | 2005-05-05 | Openpeak Inc. | User interface for multi-device control |
| WO2009017687A1 (en) * | 2007-07-26 | 2009-02-05 | Objectvideo, Inc. | Video analytic rule detection system and method |
| KR20120060339A (en) * | 2010-12-02 | 2012-06-12 | 김주환 | Closed circuit camera system using narrow angle lens and wide angle lens and practicing method thereof |
| CN102447888A (en) * | 2011-10-28 | 2012-05-09 | 江苏物联网研究发展中心 | Indoor intelligent video monitoring system based on LED (Light-Emitting Diode) controllable supplementary lighting |
| CN202488821U (en) * | 2012-02-17 | 2012-10-10 | 北京中航讯科技股份有限公司 | Scriptorium lighting lamp control system |
| CN103942557A (en) * | 2014-01-28 | 2014-07-23 | 西安科技大学 | Coal-mine underground image preprocessing method |
| CN204360171U (en) * | 2015-01-03 | 2015-05-27 | 梧州市气象局 | DVR is utilized to realize the visual system controlled equipment |
| CN207677869U (en) * | 2017-12-01 | 2018-07-31 | 东亨信息科技股份有限公司 | A kind of autolights system based on mobile detection |
Non-Patent Citations (2)
| Title |
|---|
| 1433581: "基于数字图像处理的车牌识别系统设计与实现", 《HTTP://WWW.DOCIN.COM/P-129958173.HTML》 * |
| 中华人民共和国国家质量监督检验检疫总局中国国家标准化管理委员会: "安全防范视频监控联网系统信息传输、交换、控制技术要求", 《GB/T 28181-2011》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112766267A (en) * | 2021-02-24 | 2021-05-07 | 人机互联网络(深圳)有限公司 | Diversified automobile service O2O system based on deep operation management |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103795467B (en) | Method and apparatus for identifying visible light communication signal received by camera | |
| US10200120B2 (en) | Signal encoding and decoding method, device and system | |
| CN103297754A (en) | Monitoring video self-adaption interesting area coding system | |
| CN110428400B (en) | Method, device, equipment and storage medium for positioning equipment fault | |
| CN108288289B (en) | LED visual detection method and system for visible light positioning | |
| CN105807266A (en) | Compression method for early-warning radar track data transmission | |
| CN102116664A (en) | Water level monitoring system and method | |
| CN102025975A (en) | Automatic monitoring method and system | |
| JP6167236B2 (en) | Visible light signal receiving method and apparatus thereof | |
| CN111050118A (en) | Underground light control method based on video image induction | |
| KR20150027097A (en) | Method and device for implementing analog high-definition image capturing | |
| CN113589217A (en) | Intelligent ammeter defect detection device | |
| CN109412689B (en) | Robot laser communication system and method based on image processing | |
| CN107257474A (en) | A kind of video information compression system and method towards BMC chip | |
| CN116980629B (en) | Automatic fault detection system for large-scale lighting system | |
| CN107222260B (en) | Visible light communication coding and code expanding method based on variable data area length | |
| CN105509017A (en) | Streetlamp cloud storage system and street lamp system | |
| KR20190032837A (en) | Method and apparatus for configuring region of interest in an optical camera communication | |
| CN109379590B (en) | Pulse sequence compression method and system | |
| CN105245834A (en) | Interactive induction control device for coloured lamps | |
| CN115314642B (en) | Camera optical communication system based on multi-pixel accumulation and implementation method | |
| CN108736972A (en) | LED vision-based detections based on ITS-VLC and tracking and its system | |
| CN112712567B (en) | Luminous color real-time identification system and method | |
| CN205793043U (en) | A kind of anti-interference graphic scene information gathering and transmission system | |
| CN112396668A (en) | Method and device for identifying abnormal light color in signal lamp and road side equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |