CN107326830B - Liftable automatic water conservancy diversion railing - Google Patents
Liftable automatic water conservancy diversion railing Download PDFInfo
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- CN107326830B CN107326830B CN201710784290.7A CN201710784290A CN107326830B CN 107326830 B CN107326830 B CN 107326830B CN 201710784290 A CN201710784290 A CN 201710784290A CN 107326830 B CN107326830 B CN 107326830B
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- rod
- flow guide
- diversion
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- rod head
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/02—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions free-standing; portable, e.g. for guarding open manholes ; Portable signs or signals specially adapted for fitting to portable barriers
- E01F13/022—Pedestrian barriers; Barriers for channelling or controlling crowds
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Engineering & Computer Science (AREA)
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- Automation & Control Theory (AREA)
- Architecture (AREA)
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- Structural Engineering (AREA)
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Abstract
The invention discloses a liftable automatic diversion railing, which is characterized in that: the liftable automatic flow guide rail comprises two parallel S-shaped bent rails, position sensing devices are arranged at the bent parts of the rails, and flow guide devices are arranged at the inlet ends of the rails; the flow guide device comprises a flow guide head rod, a flow guide tail rod and a plurality of flow guide middle rods clamped between the flow guide head rod and the flow guide tail rod. The invention has simple structure, controls the flow guide device to move in the track through the singlechip to automatically form the flow guide area, can control the length of the flow guide area according to the number of current people, greatly saves labor and time, can be automatically stored at the inlet end of the track, and reduces the occupation of storage space, thereby having strong practical value.
Description
Technical Field
The invention relates to a liftable automatic flow guide railing.
Background
At scenic spot ticket office or scenic spot entrance and exit department, often need set up water conservancy diversion railing device for crowded people flows can queue up in order in the water conservancy diversion passageway of S type, prevents to appear trampling scheduling incident. The existing diversion channel device is generally manually arranged, and two rows of S-shaped bent handrail channels which are parallel to each other are manually arranged according to the number of people flowing. When people flow away, the handrail is dismantled manually. The mode has lower working efficiency, consumes time and labor, and the removed handrail needs to be stored independently and occupies more space.
Disclosure of Invention
The invention aims to provide a liftable automatic flow guide railing.
In order to realize the purpose, the following technical scheme is adopted: the utility model provides a liftable automatic water conservancy diversion railing which characterized in that: the liftable automatic flow guide rail comprises two parallel S-shaped bent rails, position sensing devices are arranged at the bent parts of the rails, and flow guide devices are arranged at the inlet ends of the rails; the flow guide device comprises a flow guide head rod, a flow guide tail rod and a plurality of flow guide middle rods clamped between the flow guide head rod and the flow guide tail rod;
the flow guide head rod comprises a first rod head, a first spring reel is arranged in the first rod head, a first flow guide belt is wound on the first spring reel, and the pull-out end of the first flow guide belt is pulled out from a first through hole on one side of the first rod head; the bottom of the first rod head is connected with a first base through a first support, fixing rings are arranged on two sides of the first base, bolts are sleeved on the fixing rings and are used for being fixedly connected with the ground, a first magnet piece is further arranged below the side face, adjacent to the rear diversion middle rod, of the first rod head, a control device is further arranged at the top of the first rod head, a single chip microcomputer is arranged inside the control device, and a display screen and a key panel are arranged on the outer surface of the control device;
the flow guide tail rod comprises a second rod head, a second pull rod is arranged in the second rod head, and an ultrasonic sensor and an alarm are further arranged on the outer surface in front of the second rod head; the bottom of the second rod head is connected with a shell at the top of a steering motor through a second support, an output shaft at the bottom of the steering motor is connected with the top of a second base, a driving motor is arranged in the second base, a second roller is arranged at the bottom of the second base and is in sliding connection with a corresponding track, the output end of the driving motor is connected with a driving shaft of the second roller, and a second metal sheet is further arranged below the side surface of one side, adjacent to the front diversion middle rod, of the second rod head; the second rod head is also provided with a second through hole;
the flow guide middle rod comprises a third rod head, a third pull rod and a third spring scroll are arranged in the third rod head, third flow guide belts are wound on the third spring scroll, the pull-out ends of the third flow guide belts are pulled out through third through holes in the third rod head, and fourth through holes are further formed in the third rod head; the first diversion belt pull-out end on the diversion head rod enters the interior of the third rod head through a fourth through hole on the third rod head of the first diversion middle rod and is fixedly connected with a third pull rod in the third rod head, the third diversion belt pull-out end on the last diversion middle rod enters the interior of the diversion tail rod through a second through hole on the diversion tail rod and is fixedly connected with a second pull rod in the diversion tail rod, and the third diversion belt pull-out ends on the other diversion middle rods respectively enter the corresponding interior of the third rod head through fourth through holes on the diversion middle rods adjacent to the third guide belt pull-out ends on the other diversion middle rods and are fixedly connected with the third pull rod in the corresponding third rod head; a third metal sheet and a third magnet sheet are respectively arranged below two side surfaces of the third rod head; the bottom of each third rod head is connected with a third base through a third support, and a third roller is arranged at the bottom of the third base and is also in sliding connection with the corresponding track;
the first support, the second support and the third support are of the same structure and respectively comprise an upper fixing block, a lower fixing block, a corrugated shell and a micro cylinder; the upper fixing block and the lower fixing block are respectively positioned at the top and the bottom of the first bracket, the second bracket and the third bracket and are used for being connected with corresponding parts above and below; the upper end and the lower end of the corrugated shell are respectively fixedly connected with the upper fixing block and the lower fixing block; the micro cylinder is arranged in the corrugated shell and fixedly connected with the upper surface of the lower fixing block, and an output shaft at the top of the micro cylinder extends upwards and is fixedly connected with the lower surface of the upper fixing block;
the position sensing device, the ultrasonic sensor and the key panel are connected with an IO input end of the single chip microcomputer, and an IO output end of the single chip microcomputer is respectively connected with the display screen, the steering motor, the driving motor, the micro cylinder and the alarm.
The model of the single chip microcomputer is HETAI TTP250.
The starting devices of the driving motor, the steering motor and the micro cylinder are all provided with a driving module and an electromagnetic valve, the model of the driving module is TB 6600.5A MACH3, and the IO output end of the single chip microcomputer is connected with the corresponding electromagnetic valve through the driving module.
The position sensing device is arranged at the bent part of the track and close to one end of the track inlet.
The invention has simple structure, controls the flow guide device to move in the track through the singlechip to automatically form the flow guide area, can control the length of the flow guide area according to the number of current people, greatly saves labor and time, can be automatically stored at the inlet end of the track, and reduces the occupation of storage space, thereby having strong practical value.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a bottom view of the deflector of FIG. 1 in an expanded configuration;
FIG. 3 is a schematic view of the structure of the flow guide rod of FIG. 2;
FIG. 4 is a schematic structural view of the flow guide tail rod in FIG. 2;
FIG. 5 is a schematic structural view of the diversion center pole in FIG. 2;
FIG. 6 is a schematic structural view of a first club head;
FIG. 7 is a schematic structural view of a second club head;
FIG. 8 is a schematic structural view of a third club head;
fig. 9 is a schematic view of the internal structure of the first, second and third brackets.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 to 9, a liftable automatic diversion railing, includes two parallel and S-shaped curved tracks 1, and the tracks are laid at the entrance of the scenic spot or other entrances where the device needs to be installed, so that the entrance ends of the tracks are connected with the entrance of the scenic spot, and the upper surfaces of the tracks are flush with the ground.
The bending parts on the track 1 are all provided with position sensing devices 2, and the position sensing devices 2 are arranged at the bending parts of the track 1 and close to one end of the inlet of the track 1.
The inlet end of each track 1 is provided with a flow guiding device 3.
The flow guide device 3 comprises a flow guide head rod 4, a flow guide tail rod 6 and a plurality of flow guide middle rods 5 clamped between the flow guide head rod 4 and the flow guide tail rod 6; wherein, the guide head rod 4 is arranged at the position close to the inlet end of the track 1, and the guide tail rod 6 is far away from the inlet end of the track 1.
The guide head rod 4 comprises a first rod head 401, a first spring reel 402 is arranged inside the first rod head 401, a first guide belt 412 is wound on the first spring reel 402, and the pull-out end of the first guide belt 412 is pulled out from a first through hole 413 on one side of the first rod head 401; the bottom of the first rod head 401 is connected with a first base 404 through a first support 403, fixing rings 405 are arranged on two sides of the first base 401, a bolt 406 is sleeved on the fixing rings 405, the bolt 406 is used for being fixedly connected with the ground, a first magnet piece 407 is further arranged below the side face of one side, adjacent to the rear diversion middle rod 5, of the first rod head 401, a control device 408 is further arranged on the top of the first rod head 401, a single chip microcomputer 409 is arranged inside the control device 408, and a display screen 410 and a key panel 411 are arranged on the outer surface of the control device 408.
The guide tail rod 6 comprises a second rod head 601, a second pull rod 602 is arranged in the second rod head 601, and an ultrasonic sensor 609 and an alarm 610 are also arranged on the outer surface in front of the second rod head 601; the bottom of the second rod head 601 is connected with a shell at the top of a steering motor 604 through a second bracket 603, an output shaft at the bottom of the steering motor 604 is connected with the top of a second base 605, a driving motor 606 is arranged inside the second base 605, a second roller 607 is arranged at the bottom of the second base 605, the second roller 607 is in sliding connection with a corresponding track 1, the output end of the driving motor 606 is connected with a driving shaft of the second roller 607, and a second metal sheet 608 is further arranged below the side surface of one side of the second rod head 601 adjacent to the front middle guide rod 5; the second rod head 601 further has a second through hole 613.
The flow guiding middle rod 5 comprises a third rod head 501, a third pull rod 502 and a third spring reel 503 are arranged inside the third rod head 501, wherein a third flow guiding belt 509 is wound on the third spring reel 503, the pulling-out end of the third flow guiding belt 509 is pulled out through a third through hole 513 on the third rod head 501, and a fourth through hole 512 is further arranged on the third rod head 501; the pull-out end of the first flow guiding belt 412 on the flow guiding head rod 4 enters the inside of the third rod head 501 through a fourth through hole 512 on the third rod head 501 of the first flow guiding middle rod 5 and is fixedly connected with the third pull rod 502 inside the third rod head, the pull-out end of the third flow guiding belt 512 on the last flow guiding middle rod 5 enters the inside of the second rod head 601 through a second through hole 613 on the flow guiding tail rod 6 and is fixedly connected with the second pull rod 602 inside the second rod head, and the pull-out ends of the third flow guiding belts 509 on the other flow guiding middle rods 5 respectively enter the inside of the corresponding third rod head 501 through fourth through holes 512 on the flow guiding middle rods 5 adjacent to the pull ends of the third flow guiding belts on the other flow guiding middle rods 5 and are fixedly connected with the third pull rod 502 inside the third rod head 501; a third metal sheet 507 and a third magnet sheet 508 are respectively arranged below two side surfaces of the third rod head 501; the bottoms of the third rod heads 501 are connected with a third base 505 through a third bracket 504, the bottom of the third base 505 is provided with a third roller 506, and the third roller 505 is also connected with the corresponding track 1 in a sliding manner.
The first bracket 403, the second bracket 603 and the third bracket 504 have the same structure, and each bracket comprises an upper fixed block 4031, a lower fixed block 4032, a corrugated shell 4033 and a micro cylinder 4034; the upper fixing block 4031 and the lower fixing block 4032 are respectively positioned at the top and bottom of the first bracket 403, the second bracket 603 and the third bracket 504, and are used for connecting with corresponding parts above and below; the upper end and the lower end of the corrugated shell 4033 are respectively fixedly connected with the upper fixed block 4031 and the lower fixed block 4032; the micro cylinder 4034 is arranged inside the corrugated shell 4033 and is fixedly connected with the upper surface of the lower fixed block 4032, and the top output shaft of the micro cylinder 4034 extends upwards and is fixedly connected with the lower surface of the upper fixed block 4031;
the model of the singlechip 409 is HETAI TTP250. The position sensing device 2, the ultrasonic sensor 609 and the key panel 411 are connected with an IO input end of the single chip microcomputer 409, and an IO output end of the single chip microcomputer 409 is respectively connected with the display screen 410, the steering motor 604, the driving motor 606, the micro cylinder 4034 and the alarm 610.
And the starting devices of the driving motor 606, the steering motor 604 and the micro cylinder 4034 are respectively provided with a driving module and an electromagnetic valve, and the type of the driving module is TB 6600.5A MACH3. The input end of the driving module is directly connected with the IO output end of the single chip microcomputer, and the output end of the driving module is connected with a corresponding starting device after passing through the electromagnetic valve. In the embodiment of the present invention, the driving module is mainly used for performing a current amplification function on the output control signal of the microchip, so that the driving module can drive the solenoid valve to open, and thus the starting devices of the driving motor 606, the steering motor 604 and the micro cylinder 4034 are opened and enter a working state.
The direction of the arrows in fig. 1 indicates the direction of the flow of people into the flow guiding area.
The specific working principle and working process of the embodiment of the invention are as follows:
the people flow is less in the scenic spot, when the self-adaptive flow guide device is not needed, the whole flow guide device 3 is folded in the scenic spot door, and the flow guide head rod, the flow guide middle rods and the flow guide tail rod on the flow guide device are connected in an mutually adsorbing mode through the first magnet piece, the third metal piece, the third magnet piece and the second metal piece in sequence, so that the free sliding of the flow guide head rod, the flow guide middle rods and the flow guide tail rod in the rail is prevented. Meanwhile, the output shafts of the micro cylinders in the first support, the second support and the third support retract to the shortest positions, so that the height of the whole flow guide device is also compressed to the lowest position, and the occupation of space is reduced
When the scenic spot has more people flows, the staff inputs corresponding commands through the key panel according to the current people flow, and the diversion device is controlled to be unfolded and slide to the corresponding position sensing device on the slide rail. The specific sliding process is as follows:
the single chip microcomputer firstly outputs a control command to control a driving motor to work according to an input end instruction of the key panel, the driving motor drives a roller of the flow guide tail rod to move along the track direction, and at the moment, the driving force of the driving motor can overcome the magnetic adsorption force between the flow guide tail rod and the adjacent flow guide middle rod, so that the flow guide tail rod is separated from the adjacent flow guide middle rod; in the process of movement of the flow guide tail rod, the second pull rod on the flow guide tail rod pulls out the third flow guide belt on the adjacent flow guide middle rod, and due to the pulling force generated by forward continuous movement of the flow guide tail rod, the flow guide middle rods sequentially overcome the magnetic adsorption force from back to front and are mutually separated, and meanwhile, each flow guide middle rod also sequentially pulls out the third flow guide belt of the previous flow guide middle rod until the first flow guide belt in the flow guide head rod is pulled out by the foremost flow guide middle rod. Therefore, the purpose of gradually and sequentially unfolding the whole flow guide device along the track direction can be achieved.
The work personnel inputs a command that the diversion device is unfolded to the designated position sensing device in advance, so that in the movement process of the diversion tail rod, the singlechip can judge whether the diversion tail rod reaches the designated position or not each time the diversion tail rod passes through the position sensing device, if yes, the singlechip immediately controls the driving motor to stop working, and the diversion tail rod is ensured to be still at the current position; if not, the single chip microcomputer controls the driving motor to continuously work, and drives the flow guide tail rod to continuously move along the track until the flow guide tail rod moves to the specified position. Therefore, the unfolding length of the flow guide device and the area covering the track can be controlled according to the requirement of the flow of people; when the flow of people is very large, the diversion device can be unfolded to the limit position and cover the whole track area, so that a longer diversion channel is formed; when the flow of people does not need the diversion channel with the length, the unfolding position of the diversion device can be set according to the requirement, and the diversion device covers a part of the track area.
When the flow guide tail rod reaches a preset position, the micro air cylinders in the first support, the second support and the third support are controlled by the single chip microcomputer to synchronously work, the upper fixing block is jacked upwards, the first support, the second support and the third support are enabled to synchronously rise, and accordingly the corresponding flow guide belts are driven to synchronously rise to reach a proper height, and automatic lifting work of the whole flow guide device is completed.
In the moving process, the diversion tail rod moves to the position sensing device at the bent part of the track every time, the single chip microcomputer outputs a control command to control the steering motor to work, the steering motor controls the second base and the second roller at the bottom of the diversion tail rod to integrally steer for 90 degrees, and the single chip microcomputer also controls the driving motor to drive the diversion tail rod to slowly move when steering, so that the diversion tail rod moves and steers at the same time, and the diversion tail rod can be better adapted to the bent direction and the bent radian of the track. According to the bending direction of the rail, a determined steering direction command is input in the single chip microcomputer in advance, and the angle of each steering can be completely adapted to the rail.
In addition, in the motion process, if ultrasonic sensor on the water conservancy diversion tail-bar judges to have the barrier in the direction of motion certain distance, then, the singlechip can control the alarm and send the chimes of doom, can indicate the staff to clear up this barrier on the one hand, and on the other hand can indicate that peripheral crowd leaves this position in order to avoid blocking the motion of this water conservancy diversion tail-bar.
In the specific embodiment of the invention, the number of the flow guide middle rods can be set according to the length of the track, so that the flow guide middle rods, the flow guide head rods and the flow guide tail rods can basically cover the path set by the track after being sequentially unfolded. After the flow guide devices on the two tracks synchronously complete the work, a complete flow guide channel can be formed, and people flow at the entrance and exit ends of the scenic spot can be conveniently and orderly managed.
The invention has simple structure, controls the flow guide device to move in the track through the singlechip to automatically form the flow guide area, can control the length of the flow guide area according to the number of current people, greatly saves labor and time, can be automatically stored at the inlet end of the track, and reduces the occupation of storage space, thereby having strong practical value.
Claims (4)
1. The utility model provides an automatic water conservancy diversion railing of liftable which characterized in that: the liftable automatic flow guide rail comprises two parallel S-shaped bent rails, position sensing devices are arranged at the bent parts of the rails, and each position sensing device is arranged at one end, close to the rail inlet, of the bent part of each rail; the inlet end of the track is also provided with a flow guide device, and the flow guide device comprises a flow guide head rod, a flow guide tail rod and a plurality of flow guide middle rods clamped between the flow guide head rod and the flow guide tail rod; the number of the flow guide middle rods is set according to the length of the track, so that the flow guide device can be ensured to cover the whole track after being unfolded;
the guide head rod comprises a first rod head, a first spring scroll is arranged in the first rod head, a first guide belt is wound on the first spring scroll, and the pull-out end of the first guide belt is pulled out from a first through hole on one side of the first rod head; the bottom of the first rod head is connected with a first base through a first support, fixing rings are arranged on two sides of the first base, bolts are sleeved on the fixing rings and are used for being fixedly connected with the ground, a first magnet piece is further arranged below one side face, adjacent to the rear flow guide middle rod, of the first rod head, a control device is further arranged on the top of the first rod head, a single chip microcomputer is arranged inside the control device, and a display screen and a key panel are arranged on the outer surface of the control device;
the flow guide tail rod comprises a second rod head, a second pull rod is arranged in the second rod head, and an ultrasonic sensor and an alarm are further arranged on the outer surface in front of the second rod head; the bottom of the second rod head is connected with a shell at the top of a steering motor through a second support, an output shaft at the bottom of the steering motor is connected with the top of a second base, a driving motor is arranged in the second base, a second roller is arranged at the bottom of the second base and is in sliding connection with a corresponding track, the output end of the driving motor is connected with a driving shaft of the second roller, and a second metal sheet is further arranged below the side surface of one side, adjacent to the front diversion middle rod, of the second rod head; the second rod head is also provided with a second through hole;
the flow guide middle rod comprises a third rod head, a third pull rod and a third spring reel are arranged in the third rod head, a third flow guide belt is wound on the third spring reel, the pull-out end of the third flow guide belt is pulled out through a third through hole in the third rod head, and a fourth through hole is further formed in the third rod head; the first diversion belt pull-out end on the diversion head rod enters the interior of the third rod head through a fourth through hole on the third rod head of the first diversion middle rod and is fixedly connected with a third pull rod in the third rod head, the third diversion belt pull-out end on the last diversion middle rod enters the interior of the diversion tail rod through a second through hole on the diversion tail rod and is fixedly connected with a second pull rod in the diversion tail rod, and the third diversion belt pull-out ends on the other diversion middle rods respectively enter the corresponding interior of the third rod head through fourth through holes on the diversion middle rods adjacent to the third guide belt pull-out ends on the other diversion middle rods and are fixedly connected with the third pull rod in the corresponding third rod head; a third metal sheet and a third magnet sheet are respectively arranged below two side surfaces of the third rod head; the bottom of each third rod head is connected with a third base through a third support, and a third roller is arranged at the bottom of the third base and is also in sliding connection with the corresponding track;
the first support, the second support and the third support are of the same structure and respectively comprise an upper fixing block, a lower fixing block, a corrugated shell and a micro cylinder; the upper fixing block and the lower fixing block are respectively positioned at the top and the bottom of the first bracket, the second bracket and the third bracket and are used for being connected with corresponding parts above and below; the upper end and the lower end of the corrugated shell are respectively fixedly connected with the upper fixing block and the lower fixing block; the micro cylinder is arranged in the corrugated shell and fixedly connected with the upper surface of the lower fixing block, and an output shaft at the top of the micro cylinder extends upwards and is fixedly connected with the lower surface of the upper fixing block;
the position sensing device, the ultrasonic sensor and the key panel are connected with an IO input end of the single chip microcomputer, and an IO output end of the single chip microcomputer is respectively connected with the display screen, the steering motor, the driving motor, the micro cylinder and the alarm.
2. The liftable automatic flow guide rail according to claim 1, wherein: the model of the single chip microcomputer is Hetai TTP250.
3. The liftable automatic flow guide rail according to claim 1 or 2, wherein: the starting devices of the driving motor, the steering motor and the micro cylinder are all provided with a driving module and an electromagnetic valve, the model of the driving module is TB 6600.5A MACH3, and the IO output end of the single chip microcomputer is connected with the corresponding electromagnetic valve through the driving module.
4. The liftable automatic flow guide rail according to claim 3, wherein: the position sensing device is arranged at the bent part of the track and close to one end of the track inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784290.7A CN107326830B (en) | 2017-09-04 | 2017-09-04 | Liftable automatic water conservancy diversion railing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784290.7A CN107326830B (en) | 2017-09-04 | 2017-09-04 | Liftable automatic water conservancy diversion railing |
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| CN107326830A CN107326830A (en) | 2017-11-07 |
| CN107326830B true CN107326830B (en) | 2023-03-21 |
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| CN201710784290.7A Active CN107326830B (en) | 2017-09-04 | 2017-09-04 | Liftable automatic water conservancy diversion railing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004964B (en) * | 2018-01-15 | 2023-05-05 | 柴葳崴 | Safety protection system for railway station/subway station |
| CN110295824B (en) * | 2019-06-20 | 2020-12-04 | 浙江大华技术股份有限公司 | Electronic door control method and device, door control system and storage device |
| CN110804966A (en) * | 2019-09-23 | 2020-02-18 | 重庆特斯联智慧科技股份有限公司 | Road pedestrian recognition passing regulation system and method for smart city |
| CN112900313A (en) * | 2021-01-20 | 2021-06-04 | 潘申潮 | Service visitor system of amusement equipment area |
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