CN112200994A - Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor - Google Patents

Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor Download PDF

Info

Publication number
CN112200994A
CN112200994A CN202011035679.XA CN202011035679A CN112200994A CN 112200994 A CN112200994 A CN 112200994A CN 202011035679 A CN202011035679 A CN 202011035679A CN 112200994 A CN112200994 A CN 112200994A
Authority
CN
China
Prior art keywords
monitoring
monitoring instrument
fixedly connected
photoresistor
instrument
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.)
Withdrawn
Application number
CN202011035679.XA
Other languages
Chinese (zh)
Inventor
吴卫玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Rongzhe Technology Co ltd
Original Assignee
Guangzhou Rongzhe Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Rongzhe Technology Co ltd filed Critical Guangzhou Rongzhe Technology Co ltd
Priority to CN202011035679.XA priority Critical patent/CN112200994A/en
Publication of CN112200994A publication Critical patent/CN112200994A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • B08B1/143
    • B08B1/30
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00Accessories or details of general applicability for machines or apparatus for cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/08Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00Control of position or direction
    • G05D3/12Control of position or direction using feedback

Abstract

The invention relates to the technical field of security monitoring, and provides a monitoring instrument for automatically adjusting a monitoring position by utilizing a photoresistor, which comprises a monitoring instrument, wherein a light-collecting mirror is fixedly connected to the outer surface of the monitoring instrument, an adjusting device is movably connected to the inner side of the monitoring instrument through the light-collecting mirror, a micro-control rubber block is fixedly connected to the inner side of the monitoring instrument through the adjusting device, the monitoring instrument for automatically adjusting the monitoring position by utilizing the photoresistor is characterized in that when the photoresistor is small and a circuit is in a circuit state, a cleaning device is in a circuit state, a telescopic movable rod at the inner side of the cleaning device is stretched to extrude a spray device, an air bag is arranged at the upper side of the spray device, an air flow in the spray device drives a connecting rod of a rotating block to rotate, the rotating block rotates along with the rotating block, the rotating block intermittently extrudes a load spring to enable a cleaning agent to be, the telescopic link drives clearance sponge board and clears up the surface of control head.

Description

Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor
Technical Field
The invention relates to the technical field of security monitoring, in particular to a monitoring instrument for realizing automatic adjustment of a monitoring position by utilizing a photoresistor.
Background
The security monitoring system is an independent and complete system formed by transmitting video signals in a closed loop by using optical fibers, coaxial cables or microwaves, and displaying and recording images, and can effectively prevent theft events.
In the conventional security monitoring, because the detection range during monitoring is fixed, a plurality of monitoring instruments are required to monitor the conditions of a room simultaneously, criminals steal the room by using dead angles of the monitoring instruments in dark places, the monitoring instruments are placed at high positions after being installed and work for a long time, dust on instrument screens seriously influences the monitoring effect, the service life of the instrument screens is shortened, and the invention provides a monitoring instrument for automatically adjusting the monitoring position by using a photoresistor to solve the problems.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a monitoring apparatus for automatically adjusting a monitoring position by using a photo resistor, which is achieved by the following specific technical means:
the utility model provides an utilize photo resistance to realize automatic adjustment and keep watch on monitoring instrument of position, includes monitoring instrument, monitoring instrument's surface fixedly connected with light-collecting mirror, there is adjusting device monitoring instrument's inboard through light-collecting mirror swing joint, adjusting device fixedly connected with micro-control rubber piece is passed through to monitoring instrument's inboard, monitoring instrument's central authorities are through micro-control rubber piece fixedly connected with control head, the equal fixedly connected with cleaning device of monitoring instrument left and right sides, monitoring instrument's the left and right sides all has the spray device through cleaning device swing joint.
Preferably, the top end of the adjusting device is fixedly connected with a photosensitive resistor, and the left side and the right side of the adjusting device are both movably connected with movable folding frames.
Preferably, the outer surface of the movable folding frame is movably connected with a gear, the outer surface of the gear is movably connected with a sliding toothed plate, the lower side of the sliding toothed plate is fixedly connected with a pushing connecting frame, and the bottom end of the pushing connecting frame is fixedly connected with a pushing plate.
Preferably, the inner side of the pushing connecting frame is movably connected with a wheel belt, and the lower side of the wheel belt is movably connected with a movable frame plate.
Preferably, the equal fixedly connected with turning block in downside left and right sides of spraying device, the central authorities swing joint of spraying device have torque spring, the equal swing joint in left and right sides of spraying device has load spring, load spring's bottom fixedly connected with spraying jar.
Preferably, the bottom end of the cleaning device is movably connected with a spraying device, and the bottom end of the spraying device is fixedly connected with a cleaning sponge plate.
The invention has the following beneficial effects:
1. the monitoring instrument for realizing automatic adjustment of the monitoring position by utilizing the photoresistor, when a detection range is in a dark and lightless state, criminals open a driving light source for exploration, and by the light diffusion principle, the light diffusion principle means that when a beam of parallel incident light irradiates a rough surface, the incident light is parallel to each other due to the fact that the surface is uneven, the normal directions of all points are inconsistent, reflected light rays are irregularly reflected in different directions, light is concentrated onto the photoresistor through a light collecting mirror, if the collected light is weak, according to the characteristics of the photoresistor, the characteristics of the photoresistor have two types, the type characteristic selected here is incident light intensity, the resistance is increased, the incident light is weak, the resistance is small, the circuit of the adjusting device at the moment is in an electrified state, the driving device drives a movable folding frame to move downwards, and the inner side of a sliding toothed plate is provided with a toothed belt, through the meshing between the gear, drive gear revolve, the gear drives and promotes even frame downstream, and gear revolve drives the kickboard through the wheel area and presses the micro-control block rubber and move, micro-control block rubber finely tunes to light source department to the control head, then the circuit disconnection, and then keep watch on the person of stealing, thereby realized not needing many monitor instrument simultaneous monitoring, and guard against the criminal and utilize monitor instrument's dead angle and steal in dim place, and trail the light source and keep watch on.
2. This utilize photo resistance to realize automatic adjustment and keep watch on monitoring instrument of position, through when photo resistance is less, the circuit is when the access state, then cleaning device is in the access state, the inboard flexible movable rod of cleaning device is stretched, extrude the spray device, the upside of spray device is the gasbag, air current in the spray device drives the connecting rod rotation of turning block, the turning block is followed its rotation, the turning block carries out intermittent type nature extrusion to load spring, make the cleaner extrude to the clearance sponge board from the spraying jar on, the telescopic link drives the clearance sponge board and clears up the surface of control head, improve and watch on the picture definition, thereby realized that the effect that makes the control improves, and the life of extension instrument screen.
Drawings
FIG. 1 is a schematic view of a monitoring apparatus according to the present invention;
FIG. 2 is a schematic diagram of a photoresistor structure according to the present invention;
FIG. 3 is a schematic view of a push frame according to the present invention;
FIG. 4 is a schematic view of a spray device according to the present invention;
FIG. 5 is a schematic structural diagram of a cleaning apparatus according to the present invention.
In the figure: 1. monitoring the instrument; 2. a light collecting mirror; 3. a spray device; 4. a cleaning device; 5. micro-controlling the rubber block; 6. an adjustment device; 7. monitoring the head; 8. a photoresistor; 9. a gear; 10. pushing the connecting frame; 11. a sliding toothed plate; 12. a movable folding frame; 13. a belt wheel; 14. moving the frame plate; 15. a push plate; 16. rotating the block; 17. a load spring; 18. a torque spring; 19. a spray can; 20. cleaning the sponge plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a monitoring instrument for automatically adjusting a monitoring position by using a photo resistor comprises a monitoring instrument 1, a light collecting mirror 2 is fixedly connected to the outer surface of the monitoring instrument 1, an adjusting device 6 is movably connected to the inner side of the monitoring instrument 1 through the light collecting mirror 2, a photo resistor 8 is fixedly connected to the top end of the adjusting device 6, movable folding frames 12 are movably connected to the left and right sides of the adjusting device 6, a gear 9 is movably connected to the outer surface of the movable folding frame 12, a sliding toothed plate 11 is movably connected to the outer surface of the gear 9, a pushing connecting frame 10 is fixedly connected to the lower side of the sliding toothed plate 11, a wheel belt 13 is movably connected to the inner side of the pushing connecting frame 10, a movable frame plate 14 is movably connected to the lower side of the wheel belt 13, a pushing plate 15 is fixedly connected to the bottom end of the pushing connecting frame 10, a micro-control rubber, the monitoring instrument which utilizes the photoresistor to realize automatic adjustment of monitoring position is characterized in that the center of the monitoring instrument 1 is fixedly connected with a monitoring head 7 through a micro-control rubber block 5, the left side and the right side of the monitoring instrument 1 are fixedly connected with cleaning devices 4, when a criminal opens a driving light source for exploration when a detection range is in a dark or lightless state, the light diffusion principle refers to that when a beam of parallel incident light irradiates a rough surface, the incident light is parallel although the incident light is not parallel because of the unevenness of the surface, the reflected light is irregularly reflected in different directions due to the inconsistent normal directions of all points, the light is concentrated on the photoresistor 8 through a light collecting mirror 2, if the collected light is weaker, according to the characteristics of the photoresistor, the characteristics of the photoresistor are two types, the selected type characteristics are the incident light intensity, the resistance is increased, the incident light is weak, the resistance is less, then the circuit of adjusting device 6 this moment is the on-state, the drive drives movable folding leg 12 and moves down, and sliding toothed plate 11 inboard has the teeth of a cogwheel belt, through the meshing between the gear, drive gear 9 and rotate, gear 9 drives and promotes even frame 10 and moves down, and gear 9 rotates and drives kickboard 15 through wheel belt 13 and push away the rubber block 5 of micro-control, the rubber block of micro-control 5 finely tunes to light source department monitoring head 7, then the circuit disconnection, and then the person of monitoring thief, thereby realized not needing many monitoring instruments to monitor simultaneously, and prevent that the criminal utilizes the dead angle of monitoring instrument and steals in the dim place, and the tracking light source is kept watch on.
The bottom end of the cleaning device 4 is movably connected with a spray device 3, the bottom end of the spray device 3 is fixedly connected with a cleaning sponge plate 20, the left side and the right side of a monitoring instrument 1 are movably connected with the spray device 3 through the cleaning device 4, the left side and the right side of the lower side of the spray device 3 are fixedly connected with rotating blocks 16, the center of the spray device 3 is movably connected with a torque spring 18, the left side and the right side of the spray device 3 are movably connected with a load spring 17, the bottom end of the load spring 17 is fixedly connected with a spray tank 19, the monitoring instrument for automatically adjusting the monitoring position by utilizing a photoresistor is characterized in that when the photoresistor is small, a circuit is in an on-circuit state, the cleaning device 4 is in an on-circuit state, a telescopic movable rod inside the cleaning device 4 is stretched to extrude the spray device 3, the upper side of the spray device 3 is an air bag, the turning block 16 rotates along with the rotation of the turning block, the turning block 16 intermittently extrudes the load spring 17, so that a cleaning agent is extruded from the spray tank 19 to the cleaning sponge plate 20, the telescopic rod drives the cleaning sponge plate 20 to clean the surface of the monitoring head 7, and the definition of monitoring pictures is improved, so that the effect of monitoring is improved, and the service life of an instrument screen is prolonged.
The working principle is as follows: when the detection range is in dark or no light state, and the criminal opens the driving light source for exploration, the light diffusion principle means that when a beam of parallel incident light is emitted to the rough surface, the incident light is parallel to each other due to the unevenness of the surface, the reflected light is irregularly reflected in different directions due to the non-uniform normal direction of each point, the light is concentrated to the photoresistor 8 through the light collecting mirror 2, if the collected light is weaker, the characteristics of the photoresistor are of two types according to the characteristics of the photoresistor, the type characteristic selected here is the incident light intensity, the resistance is increased, the incident light is weak, the resistance is smaller, the circuit at the moment of the adjusting device 6 is in a power-on state, the driving drives the movable folding frame 12 to move downwards, the inner side of the sliding toothed plate 11 is provided with a toothed belt, and the gears 9 are driven to rotate through the meshing between the gears, the gear 9 drives the pushing connecting frame 10 to move downwards, the gear 9 rotates to drive the pushing plate 15 to press the micro-control rubber block 5 through the belt 13, the micro-control rubber block 5 finely adjusts the monitoring head 7 to the light source, and then the circuit is disconnected, so that a thief is monitored.
Simultaneously less when the photo resistance, the circuit is when the access state, then cleaning device 4 is in the access state, the inboard flexible movable rod of cleaning device 4 stretches, extrude spraying device 3, the upside of spraying device 3 is the gasbag, the air current in the spraying device 3 drives the connecting rod of turning block 16 and rotates, turning block 16 follows its rotation, turning block 16 carries out intermittent type nature extrusion to load spring 17, make the cleaner extrude from spraying tank 19 and lead to on clearance sponge board 20, the telescopic link drives clearance sponge board 20 and clears up the surface of control head 7, the improvement is kept watch on the picture definition.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A monitor instrument for realizing automatic adjustment of monitoring position by using a photoresistor comprises a monitor instrument (1), and is characterized in that: the utility model discloses a spraying device, including monitoring instrument (1), the outer fixed surface of monitoring instrument (1) is connected with light-collecting mirror (2), the inboard of monitoring instrument (1) has adjusting device (6) through light-collecting mirror (2) swing joint, adjusting device (6) fixedly connected with micro-control rubber piece (5) are passed through to the inboard of monitoring instrument (1), the central authorities of monitoring instrument (1) are through micro-control rubber piece (5) fixedly connected with control head (7), the equal fixedly connected with cleaning device (4) of the left and right sides of monitoring instrument (1), the left and right sides of monitoring instrument (1) all has spraying device (3) through cleaning device (4) swing joint.
2. A monitoring instrument for realizing automatic adjustment of a monitoring position by using a photoresistor according to claim 1, wherein: the top end of the adjusting device (6) is fixedly connected with a photosensitive resistor (8), and the left side and the right side of the adjusting device (6) are both movably connected with movable folding frames (12).
3. A monitoring instrument for realizing automatic adjustment of a monitoring position by using a photoresistor according to claim 2, wherein: the outer surface swing joint of activity folding leg (12) has gear (9), and the outer surface swing joint of gear (9) has sliding toothed plate (11), and the downside fixedly connected with of sliding toothed plate (11) promotes even frame (10), promotes even bottom fixedly connected with slurcam (15) of putting up (10).
4. A monitoring instrument for realizing automatic adjustment of a monitoring position by using a photoresistor according to claim 3, wherein: the inner side of the pushing connecting frame (10) is movably connected with a wheel belt (13), and the lower side of the wheel belt (13) is movably connected with a movable frame plate (14).
5. A monitoring instrument for realizing automatic adjustment of a monitoring position by using a photoresistor according to claim 1, wherein: the spray device is characterized in that the left side and the right side of the lower side of the spray device (3) are fixedly connected with rotating blocks (16), the center of the spray device (3) is movably connected with a torque spring (18), the left side and the right side of the spray device (3) are movably connected with load springs (17), and the bottom ends of the load springs (17) are fixedly connected with spray cans (19).
6. A monitoring instrument for realizing automatic adjustment of a monitoring position by using a photoresistor according to claim 1, wherein: the bottom end of the cleaning device (4) is movably connected with a spraying device (3), and the bottom end of the spraying device (3) is fixedly connected with a cleaning sponge plate (20).
CN202011035679.XA 2020-09-27 2020-09-27 Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor Withdrawn CN112200994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011035679.XA CN112200994A (en) 2020-09-27 2020-09-27 Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011035679.XA CN112200994A (en) 2020-09-27 2020-09-27 Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor

Publications (1)

Publication Number Publication Date
CN112200994A true CN112200994A (en) 2021-01-08

Family

ID=74007378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011035679.XA Withdrawn CN112200994A (en) 2020-09-27 2020-09-27 Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor

Country Status (1)

Country Link
CN (1) CN112200994A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112924142A (en) * 2021-01-25 2021-06-08 杨翠兰 Optical fiber detection device for realizing light refraction detection based on light reflection principle
CN113037972A (en) * 2021-03-06 2021-06-25 杭州恩惠安防产品有限公司 Camera equipment capable of automatically cleaning ash

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108597168A (en) * 2018-04-24 2018-09-28 广东美的制冷设备有限公司 Security alarm method, apparatus based on optical filter and household appliance
CN110345927A (en) * 2019-07-10 2019-10-18 湖北三环智能科技有限公司 The positioning system and localization method of the loading position AGV under a kind of gantry crane
CN110716176A (en) * 2019-11-12 2020-01-21 中化二建集团有限公司 Job site personnel positioning system
CN110955101A (en) * 2019-12-16 2020-04-03 赵兴学 Camera lens automatically regulated's projection arrangement based on photo resistance
CN211372242U (en) * 2020-04-02 2020-08-28 苏州工业园区明益电器有限公司 Intelligent control device for LED lamp
US20200279117A1 (en) * 2015-01-13 2020-09-03 Vivint, Inc. Enhanced doorbell camera interactions
CN211484971U (en) * 2019-12-31 2020-09-15 上海交通大学医学院附属第九人民医院 Intelligent auxiliary system for comprehensive vision of operation
EP3709268A1 (en) * 2019-03-15 2020-09-16 Savox Communications Oy Ab (Ltd) An image processing arrangement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200279117A1 (en) * 2015-01-13 2020-09-03 Vivint, Inc. Enhanced doorbell camera interactions
CN108597168A (en) * 2018-04-24 2018-09-28 广东美的制冷设备有限公司 Security alarm method, apparatus based on optical filter and household appliance
EP3709268A1 (en) * 2019-03-15 2020-09-16 Savox Communications Oy Ab (Ltd) An image processing arrangement
CN110345927A (en) * 2019-07-10 2019-10-18 湖北三环智能科技有限公司 The positioning system and localization method of the loading position AGV under a kind of gantry crane
CN110716176A (en) * 2019-11-12 2020-01-21 中化二建集团有限公司 Job site personnel positioning system
CN110955101A (en) * 2019-12-16 2020-04-03 赵兴学 Camera lens automatically regulated's projection arrangement based on photo resistance
CN211484971U (en) * 2019-12-31 2020-09-15 上海交通大学医学院附属第九人民医院 Intelligent auxiliary system for comprehensive vision of operation
CN211372242U (en) * 2020-04-02 2020-08-28 苏州工业园区明益电器有限公司 Intelligent control device for LED lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112924142A (en) * 2021-01-25 2021-06-08 杨翠兰 Optical fiber detection device for realizing light refraction detection based on light reflection principle
CN113037972A (en) * 2021-03-06 2021-06-25 杭州恩惠安防产品有限公司 Camera equipment capable of automatically cleaning ash

Similar Documents

Publication Publication Date Title
CN112200994A (en) Monitoring instrument for realizing automatic adjustment of monitoring position by using photoresistor
WO2021197070A1 (en) On-site image acquisition device and image acquisition method for fully-mechanized mining face
CN110320730B (en) Binocular camera
CN210979076U (en) Frame structure of high-definition video real-time remote transmission module
CN110575981A (en) dust removal type intelligent security equipment with light regulatory function
CN112379540A (en) Bubble-proof laminating device for liquid crystal display
CN113747015A (en) Intelligent security monitoring equipment
CN208566028U (en) A kind of erasable adjusts the monitor camera device of height
CN214591617U (en) Integrated industrial camera
CN219875913U (en) TFDS camera lens with self-cleaning function
CN214707832U (en) Effectual video car inspection ware of formation of image
CN114872915A (en) Unmanned aerial vehicle camera device that anti-interference effect is good
CN114909564A (en) Office building monitoring device based on Internet of things
CN107599977B (en) Vehicle blind area safety monitoring system
CN112261254A (en) Infrared rifle type camera of full angle high definition network
CN220397133U (en) Mounting device for monitoring camera, monitoring camera and monitoring camera device
CN219997792U (en) Display screen convenient to adjust inclination
CN220582086U (en) Auxiliary device for violation snapshot
CN218830280U (en) Traffic environment monitoring equipment
CN214955955U (en) System for video image dynamic evaluation
CN220611424U (en) Monitoring camera device convenient for night monitoring
CN211759001U (en) Pipe fitting production facility convenient to equipment
CN208698661U (en) A kind of reflection-proof automobile data recorder display screen facilitating installation
CN220754909U (en) Monitoring camera with infrared induction
CN220154773U (en) Shading subassembly convenient to adjust

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
WW01 Invention patent application withdrawn after publication

Application publication date: 20210108

WW01 Invention patent application withdrawn after publication