CN220102712U - Intelligent security monitoring device - Google Patents

Intelligent security monitoring device Download PDF

Info

Publication number
CN220102712U
CN220102712U CN202321495183.XU CN202321495183U CN220102712U CN 220102712 U CN220102712 U CN 220102712U CN 202321495183 U CN202321495183 U CN 202321495183U CN 220102712 U CN220102712 U CN 220102712U
Authority
CN
China
Prior art keywords
monitoring
ceiling
lateral wall
monitoring device
baffle
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.)
Active
Application number
CN202321495183.XU
Other languages
Chinese (zh)
Inventor
周雷扬
俞棋辉
戴行
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.)
Ningbo Guangzhi Electronic Technology Co ltd
Original Assignee
Ningbo Guangzhi Electronic 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 Ningbo Guangzhi Electronic Technology Co ltd filed Critical Ningbo Guangzhi Electronic Technology Co ltd
Priority to CN202321495183.XU priority Critical patent/CN220102712U/en
Application granted granted Critical
Publication of CN220102712U publication Critical patent/CN220102712U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Burglar Alarm Systems (AREA)

Abstract

The utility model discloses an intelligent confidentiality monitoring device, which comprises a ceiling, wherein a through groove is formed in the bottom end of the ceiling, the through groove penetrates through the bottom end of the ceiling, two supporting plates are fixedly arranged at the top end of the ceiling, and the two supporting plates are oppositely arranged; when the monitoring device needs to be kept secret and hidden under some scenes, the monitoring body and the camera can be taken in the ceilings and the inside of the protective box together through the air cylinder in the protective box, at the moment, the baffle plate slides out of the inside of the chute through the electric push rod, the baffle plate covers the through groove, at the moment, the camera is placed in the through hole through moving the monitoring and control air cylinder, and the through hole and the camera are matched in size, so that the outside can be kept secret and monitored through the through hole, the monitoring body is hidden in the inside of the protective box above the ceilings, the monitoring is not found, the confidentiality and the privacy of the monitoring are enhanced, and meanwhile, the damage to the monitoring is avoided.

Description

Intelligent security monitoring device
Technical Field
The utility model relates to the technical field of monitoring, in particular to an intelligent confidentiality monitoring device.
Background
The monitoring system is one of the most applied systems in security systems, the more suitable building site monitoring system on the market is handheld video communication equipment, and video monitoring is currently the mainstream. The change of the ground over the sky occurs from the earliest analog monitoring to the digital monitoring of the heat of fire in the previous years to the video monitoring of the network of the current state of the prior art. Today, the IP technology is gradually unified worldwide, and we need to know the development history of the video monitoring system again. From a technical perspective, video surveillance system developments are divided into first generation analog video surveillance systems (CCTV), second generation digital video surveillance systems (DVR) based on "pc+multimedia card", and third generation completely IP network based video surveillance systems (IPVS).
Due to the development of technology, the monitoring device basically extends to all living scenes, whether indoors or outdoors, and basically monitors, but the existing monitoring device technology is urgently needed to solve the following difficulties and pains.
1. The confidentiality of the monitoring is not high, the monitoring is generally arranged at the indoor ceiling, some lawbreakers avoid tracking by directly damaging the monitoring, monitoring equipment is damaged before crimes are made, then crimes are made, the monitoring cannot record the crimes, and the follow-up tracking and apprehension process of the lawbreakers is affected.
2. After the general monitoring is damaged, no alarm measures are taken, and the optimal alarm time is missed, so that criminals continue to steal crimes, property loss can be caused, and the monitoring device is not high in practicability.
For this reason, how to ensure confidentiality of the monitoring device, prevent the monitoring device from being found and damaged is an important problem in monitoring installation and use.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the intelligent confidentiality monitoring device which can solve the problem of low confidentiality of the existing monitoring device and can prevent the monitoring device from being damaged by people.
The intelligent confidentiality monitoring device comprises a ceiling, wherein a through groove is formed in the bottom end of the ceiling, the through groove penetrates through the bottom end of the ceiling, two supporting plates are fixedly arranged at the top end of the ceiling, the two supporting plates are oppositely arranged, a moving mechanism is arranged between the two supporting plates, a protective box is arranged below the moving mechanism, an air cylinder is fixedly arranged in the protective box, a monitoring body is arranged at the output end of the air cylinder, a camera is arranged at the bottom end of the monitoring body, a groove is formed in the side wall of the through groove, an electric push rod is fixedly arranged in the groove, a chute is formed in the side wall, far away from one end of the groove, of the through groove, a baffle is slidably arranged in the chute, the baffle is matched with the through groove, the baffle is in transmission connection with the output end of the electric push rod, a through hole is formed in the bottom end of the baffle, and the through hole penetrates through the bottom end of the baffle, and the through hole is matched with the camera; during daily use control, make the control at the below mobile monitoring of ceiling through mobile mechanism, though the control is surrounding type camera, but still can lead to the control to have the dead angle because the high and some objects in ground shelter from, mobile mechanism can prevent that the dead angle from leading to the control unable normal monitoring position, when needs carry out secret to monitoring device under some scenes and hide, can be through the inside cylinder of protective housing, will monitor body and camera and take in the inside of ceiling and protective housing together, at this moment, rethread electric putter will baffle follow spout inside roll-off, the baffle will lead to the groove and shelter from the back at this moment, through mobile control and control cylinder, place the camera to the inside of through-hole, because through-hole and camera size looks adaptation, can carry out secret control to the outside through-hole, hide the monitoring body in the inside of protective housing of ceiling top for the control is not found, the security and the privacy of control have been strengthened, still can avoid the destruction to the control.
The intelligent confidentiality monitoring device comprises a motor, wherein the motor is fixedly arranged on the side wall of one supporting plate, the output end of the motor is in transmission connection with a screw, one end of the screw is in rotary connection with the side wall of the other supporting plate, a moving plate is arranged on the screw in a threaded manner, the screw penetrates through the side wall of the moving plate, a telescopic rod is fixedly arranged on the side wall of the moving plate and the side wall of one supporting plate, an inner cylinder of the telescopic rod is fixedly connected with the side wall of the supporting plate, and an outer cylinder of the telescopic rod is fixedly connected with the side wall of the moving plate; through the rotation of control motor, can make the screw rod rotatory, under the spacing effect of telescopic link, the movable plate can be on the screw rod about remove, has realized the removal control of camera, has strengthened the practicality of device.
The intelligent confidentiality monitoring device comprises a monitoring body, wherein a light sensor is fixedly arranged on the side wall of the monitoring body, the light sensor is electrically connected with an electromagnetic switch in an air cylinder, a wireless radio frequency control module is fixedly arranged at the top end of the ceiling, the wireless radio frequency control module is electrically connected with an electric push rod through a PLC sensor, and the wireless radio frequency control module is in wireless connection with the light sensor through a built-in wireless signal device; the wireless radio frequency control module and the light sensor are both in the prior art, the function of the light sensor is to detect the light brightness of the external environment, so that an electric signal is conducted, and therefore, the wireless radio frequency control module is not described in detail, in addition, the wireless radio frequency control module can receive or transmit wireless signals to the outside to control or enable the outside to respond to the equipment, and therefore, the wireless radio frequency control module is not described in detail, the device generally does not need to conduct secret monitoring in daily life, but at night, no personnel work is needed in the room, when the light is closed, the threshold value of the light sensor is triggered, the air cylinder is controlled to operate through the light sensor, the monitoring body is collected into the protective box, then the wireless radio frequency control module receives the signals of the light sensor, the electric push rod is controlled to work at the moment, the baffle is moved into the through groove, secret monitoring is achieved, meanwhile, the wireless radio frequency control module can also transmit wireless signals to the wireless radio frequency control module through the wireless signals to respond to the light sensor through the wireless signals, at the moment, the light sensor can adjust the air cylinder without meeting the light brightness threshold value, the secret monitoring operation is achieved through remote manual control, and secret monitoring operation is achieved, and the device performance, practicality and convenience are improved.
The intelligent security monitoring device comprises a protective box, wherein a plurality of ventilation holes are formed in the side wall of the protective box; because the control is under secret control state, the control body is inside the protective housing, and operational environment is narrow and small, can't carry out fine heat dissipation, the ventilation hole of seting up this moment can strengthen the inside heat dispersion of protective housing, prevents to monitor the body because inside heat is higher and damage or unable normal use.
The intelligent security monitoring device comprises a plurality of vent holes, wherein dust screens are arranged in the vent holes; the dust screen can ensure that outside dust can not enter the interior of the protective box, prevents the influence of dust on the device, and enhances the protectiveness and safety of the monitoring body.
The intelligent confidentiality monitoring device comprises an alarm, wherein the top end of a ceiling is fixedly provided with a buzzer, the alarm is electrically connected with the buzzer, and the alarm is electrically connected with a wireless radio frequency control module through a PLC sensor; when the wireless radio frequency control module does not receive external wireless signals and forcedly opens the baffle, the electric push rod responds at the moment, the wireless radio frequency control module receives the response of the electric push rod, the abnormality is found, then the alarm gives an alarm, the buzzer generates buzzes to frighten lawless persons who want to destroy monitoring, the device is arranged to avoid the emergency plan adopted when the monitoring device is destroyed because the confidentiality of the monitoring device is limited, and the safety performance and the practical performance of the monitoring device are enhanced.
According to the utility model, after the structure is adopted, when monitoring is used daily, the monitoring is carried out by moving the monitoring under the ceiling through the moving mechanism, although the monitoring is the surrounding camera, the monitoring is still caused by the height and shielding of some objects on the ground, at the moment, the moving mechanism can prevent the dead angle from leading to the monitoring of a certain position which cannot be normally monitored, the device generally does not need to carry out secret monitoring in daily life, but at night, no personnel work is carried out indoors, when the lamplight is closed, the threshold value of the optical sensor is triggered, the cylinder is controlled by the optical sensor to operate, the monitoring body is received into the protective box, then the wireless radio frequency control module receives the signal of the optical sensor, at the moment, the electric push rod is controlled to operate, the baffle plate is moved into the through groove, secret monitoring is realized, at the same time, the wireless radio frequency control module responds to the optical sensor through the wireless signal, at the moment, the optical sensor can adjust the cylinder without meeting the light brightness threshold value, the operation of the remote manual control monitoring is realized, the secret performance, the practical performance and the wireless radio frequency control module is not required to be controlled by the buzzer when the wireless radio frequency control module is opened, the alarm device is not required to be opened, and the abnormal condition is found, the alarm is not to be caused by the alarm device is not to be opened, and the abnormal condition is found, because the alarm is caused by the wireless push rod is opened, the device is in order to be used for the abnormal, and the monitoring has been used, and the security monitoring is controlled, the safety performance and the practical performance of the monitoring device are enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic three-dimensional structure of the present utility model;
FIG. 2 is a schematic view of a three-dimensional structure from another perspective of the present utility model;
FIG. 3 is a schematic view of a three-dimensional structure of the security monitoring device according to the present utility model;
FIG. 4 is a schematic view of a three-dimensional explosion structure inside the protective housing of the present utility model;
fig. 5 is a schematic top view of the present utility model.
Detailed Description
Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Example 1
As shown in fig. 1-4, the intelligent security monitoring device of the utility model comprises a ceiling 1, wherein a through groove 2 is formed at the bottom end of the ceiling 1, the through groove 2 penetrates through the bottom end of the ceiling 1, two supporting plates 3 are fixedly arranged at the top end of the ceiling 1, the two supporting plates 3 are oppositely arranged, a moving mechanism is arranged between the two supporting plates 3, a protective box 7 is arranged below the moving mechanism, an air cylinder 10 is fixedly arranged in the protective box 7, a monitoring body 11 is arranged at the output end of the air cylinder 10, a camera 12 is arranged at the bottom end of the monitoring body 11, a groove 13 is formed in the side wall of the through groove 2, an electric push rod 14 is fixedly arranged in the groove 13, a chute 18 is formed in the side wall of the through groove 2, which is far away from one end of the groove 13, a baffle 19 is slidably arranged in the chute 18, the baffle 19 is matched with the through groove 2, a through hole 20 is formed in the bottom end of the baffle 19 and is in transmission connection with the output end of the electric push rod 14, the through hole 20 penetrates through the bottom end of the baffle 19, and the camera 12 is matched with the camera 12; during daily use monitoring, the monitoring is carried out under the ceiling 1 through the moving mechanism, although the monitoring is carried out by the surrounding type camera 12, the monitoring is still carried out by the moving mechanism due to the fact that the height of the camera 12 is equal to the height of the camera 12 and the ground is blocked, at the moment, the moving mechanism can prevent the dead angle from leading to the fact that the monitoring cannot normally monitor a certain position, when the monitoring device needs to be kept secret and hidden in some scenes, the monitoring body 11 and the camera 12 can be taken in the ceiling 1 and the inside of the protection box 7 through the air cylinder 10 in the protection box 7, at the moment, the baffle 19 slides out from the inside of the chute 18 through the electric push rod 14, after the baffle 19 covers the through groove 2, at the moment, the camera 12 is placed in the inside of the through hole 20 through moving the monitoring and control air cylinder 10, and the through hole 20 is matched with the size of the camera 12, so that the outside can be kept secret and monitored through the through hole 20, the monitoring body 11 is hidden in the inside the protection box 7 above the ceiling 1, so that the monitoring is not found, the confidentiality and the privacy of the monitoring are enhanced, and the damage to the monitoring can be avoided.
The moving mechanism comprises a motor 6, the motor 6 is fixedly arranged on the side wall of one supporting plate 3, the output end of the motor 6 is in transmission connection with a screw rod 5, one end of the screw rod 5 is in rotational connection with the side wall of the other supporting plate 3, a moving plate 4 is arranged on the screw rod 5 in a threaded manner, the screw rod 5 penetrates through the side wall of the moving plate 4, a telescopic rod 22 is fixedly arranged on the side wall of the moving plate 4 and the side wall of one supporting plate 3, an inner cylinder of the telescopic rod 22 is fixedly connected with the side wall of the supporting plate 3, and an outer cylinder of the telescopic rod 22 is fixedly connected with the side wall of the moving plate 4; through the rotation of control motor 6, can make screw rod 5 rotatory, under the spacing effect of telescopic link 22, movable plate 4 can be left and right movement on screw rod 5, has realized the removal control of camera 12, has strengthened the practicality of the device.
The side wall of the monitoring body 11 is fixedly provided with a light sensor 21, the light sensor 21 is electrically connected with an electromagnetic switch in the cylinder 10, the top end of the ceiling 1 is fixedly provided with a wireless radio frequency control module 15, the wireless radio frequency control module 15 is electrically connected with the electric push rod 14 through a PLC sensor, and the wireless radio frequency control module 15 is in wireless connection with the light sensor 21 through a built-in wireless signal device; the wireless radio frequency control module 15 and the light sensor 21 are both in the prior art, the function of the light sensor 21 is to detect the light brightness of the external environment, so that the electric signal is conducted, and therefore, not described in detail, in addition, the function of the wireless radio frequency control module 15 is to receive or transmit wireless signals to the outside to control the outside equipment or enable the outside equipment to respond, and therefore, not described in detail, the device generally does not need to conduct security monitoring in daily life, but at night, no personnel work in the room, when the light is closed, the threshold of the light sensor 21 is triggered, at this time, the air cylinder 10 is controlled to operate through the light sensor 21, the monitoring body 11 is received into the protective box 7, then the wireless radio frequency control module 15 receives signals of the light sensor 21, at this time, the electric push rod 14 is controlled to operate, the baffle 19 is moved into the inside of the through groove 2, security monitoring is achieved, and likewise, wireless signals can be transmitted to the wireless radio frequency control module 15 through manual remote control, at this time, the wireless radio frequency control module 15 responds to the light sensor 21 through the wireless signals, at this time, the light sensor 21 can conduct manual adjustment on the air cylinder 10 without meeting the threshold of the light brightness, the operation of the remote control monitoring device is achieved, the performance of the security monitoring device is improved, the practicality and convenience performance.
The side wall of the protective box 7 is provided with a plurality of vent holes 8; because the control is under secret control state, control body 11 is inside protective housing 7, and operational environment is narrow and small, can't carry out fine heat dissipation, and ventilation hole 8 of seting up this moment can strengthen the inside heat dispersion of protective housing 7, prevents to monitor body 11 because inside heat is higher and damage or unable normal use.
A dust screen 9 is arranged inside each of the plurality of ventilation holes 8; the dust screen 9 can ensure that external dust can not enter the interior of the protective box 7, prevents the influence of the dust on the device, and enhances the protectiveness and safety of the monitoring body 11.
Example 2
As shown in fig. 5, unlike example 1, there is: an alarm 16 is fixedly arranged at the top end of the ceiling 1, a buzzer 17 is fixedly arranged at the top end of the alarm 16, the alarm 16 is electrically connected with the buzzer 17, and the alarm 16 is electrically connected with the wireless radio frequency control module 15 through a PLC sensor; when the wireless radio frequency control module 15 does not receive external wireless signals and forcedly opens the baffle 19, the electric push rod 14 responds at the moment, the wireless radio frequency control module 15 receives the response of the electric push rod 14, the abnormality is found, then the alarm 16 gives an alarm, the buzzer 17 generates buzzes to frighten lawless persons who want to destroy monitoring, the device is arranged to avoid the emergency plan adopted when the monitoring device is found and destroyed due to the limited confidentiality of the monitoring device, and the safety performance and the practical performance of the monitoring device are enhanced.
The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims (6)

1. Intelligent security monitoring device, its characterized in that: including ceiling (1), logical groove (2) have been seted up to the bottom of ceiling (1), the bottom of ceiling (1) is run through to logical groove (2), the top fixed mounting of ceiling (1) has two backup pads (3), two backup pads (3) set up relatively, are provided with moving mechanism between two backup pads (3), moving mechanism's below is provided with protective housing (7), the inside fixed mounting of protective housing (7) has cylinder (10), the output of cylinder (10) is provided with control body (11), the bottom of control body (11) is provided with camera (12), recess (13) have been seted up to the lateral wall of logical groove (2), the inside fixed mounting of recess (13) has electric putter (14), spout (18) have been seted up to the lateral wall that groove (2) kept away from recess (13) one end, the inside slidable mounting of spout (18) has baffle (19), baffle (19) and logical groove (2) looks adaptation, baffle (19) are connected with electric putter's output (14) bottom (20) of baffle (19), the bottom of baffle (20) are run through, the through hole (20) is matched with the camera (12).
2. The intelligent security monitoring device according to claim 1, wherein the moving mechanism comprises a motor (6), the fixed mounting of motor (6) is at the lateral wall of one of them backup pad (3), the output transmission of motor (6) is connected with screw rod (5), the one end of screw rod (5) is rotated with the lateral wall of another backup pad (3) and is connected, screw thread installs movable plate (4) on screw rod (5), screw rod (5) run through the lateral wall of movable plate (4), the lateral wall of movable plate (4) has telescopic link (22) with the lateral wall fixed mounting of one of them backup pad (3), the inner tube of telescopic link (22) is with the lateral wall fixed connection of backup pad (3), the urceolus of telescopic link (22) and the lateral wall fixed connection of movable plate (4).
3. The intelligent security monitoring device according to claim 1, wherein the side wall of the monitoring body (11) is fixedly provided with a light sensor (21), the light sensor (21) is electrically connected with an electromagnetic switch inside the air cylinder (10), the top end of the ceiling (1) is fixedly provided with a wireless radio frequency control module (15), the wireless radio frequency control module (15) is electrically connected with the electric push rod (14) through a PLC sensor, and the wireless radio frequency control module (15) is in wireless connection with the light sensor (21) through a built-in wireless signal device.
4. The intelligent security monitoring apparatus of claim 1, wherein the side wall of the protective housing (7) is provided with a plurality of ventilation holes (8).
5. The intelligent security monitoring apparatus of claim 4, wherein a dust screen (9) is provided inside each of the plurality of ventilation holes (8).
6. The intelligent security monitoring device according to claim 1, wherein an alarm (16) is fixedly installed at the top end of the ceiling (1), a buzzer (17) is fixedly installed at the top end of the alarm (16), the alarm (16) is electrically connected with the buzzer (17), and the alarm (16) is electrically connected with the wireless radio frequency control module (15) through a PLC sensor.
CN202321495183.XU 2023-06-12 2023-06-12 Intelligent security monitoring device Active CN220102712U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321495183.XU CN220102712U (en) 2023-06-12 2023-06-12 Intelligent security monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321495183.XU CN220102712U (en) 2023-06-12 2023-06-12 Intelligent security monitoring device

Publications (1)

Publication Number Publication Date
CN220102712U true CN220102712U (en) 2023-11-28

Family

ID=88864718

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321495183.XU Active CN220102712U (en) 2023-06-12 2023-06-12 Intelligent security monitoring device

Country Status (1)

Country Link
CN (1) CN220102712U (en)

Similar Documents

Publication Publication Date Title
CN103745579B (en) A kind of safety defense monitoring system
CN107230313A (en) A kind of building fire-fighting linked system
CN207115680U (en) A kind of fire alarm system
CN107147880A (en) A kind of safety defense monitoring system
CN103475804A (en) Monitoring camera
CN220102712U (en) Intelligent security monitoring device
CN202257798U (en) Security monitoring and patrolling system for detention house
CN202421843U (en) Multifunctional security monitoring informationized sentry device and security monitoring system thereof
CN107222725A (en) A kind of safety defense monitoring system
CN220422227U (en) Front-end operation and maintenance box for video monitoring equipment
CN105223891A (en) A kind of intelligent cabinet being applied to data center machine room
CN107833421A (en) A kind of digital product markets monitoring system
CN209103472U (en) A kind of safety monitoring burglar alarm
CN204348013U (en) A kind of burglar alarm supervising device of door and window passive infrared detection
CN106101661A (en) Domestic safety monitoring method and domestic safety monitoring device
CN207199041U (en) A kind of efficient safety monitoring integrated system in community
CN216388275U (en) Multifunctional security monitoring equipment with warning area monitoring and alarming functions
CN108682111A (en) A kind of security alarm monitoring system
CN209962379U (en) Intelligent off-line monitoring box
KR101075874B1 (en) Video transmission system
CN111372053B (en) Security monitoring device
CN210865006U (en) Security and protection monitoring integrated management platform
CN103123479A (en) Multifunctional sentry position security and protection monitoring information device
CN104219489A (en) Wireless monitoring equipment and method for operating same
CN208014131U (en) A kind of switchgear house safety monitoring system based on Internet of Things

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant