CN113699916A - Safe traffic control is with lift roadblock - Google Patents
Safe traffic control is with lift roadblock Download PDFInfo
- Publication number
- CN113699916A CN113699916A CN202110931569.XA CN202110931569A CN113699916A CN 113699916 A CN113699916 A CN 113699916A CN 202110931569 A CN202110931569 A CN 202110931569A CN 113699916 A CN113699916 A CN 113699916A
- Authority
- CN
- China
- Prior art keywords
- lifting
- module
- traffic control
- electrically connected
- roadblock
- 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.)
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Classifications
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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
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/048—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage with obstructing members moving in a translatory motion, e.g. vertical lift barriers, sliding gates
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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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
- G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
Abstract
The invention discloses a safe lifting roadblock for traffic control, which comprises a chassis, wherein a bottom cylinder is fixedly arranged at the top of the chassis, a cavity is arranged in the bottom cylinder, a flange is fixedly arranged at the top of the bottom cylinder, an anti-collision column body is connected in the inner cavity of the bottom cylinder in a sliding manner, and a main controller is arranged in the bottom cylinder; the pressure sensor is arranged at the bottom of the chassis and is buried underground, the pressure sensor is positioned in front of the lifting roadblock, when a pedestrian comes from sensing a pressure value, the pressure signal module can control the anti-collision column to lift in advance to intercept the vehicle, and the safety of the pedestrian passing is ensured by adding the pressure signal module; the traffic light connection module is electrically connected with the main controller, and the traffic light connection module can be interconnected with the traffic light at the position, so that the vehicles can be lifted and intercepted according to the red light, the vehicles can be lowered and allowed to pass according to the green light, and the vehicles can be prevented from running the red light through the arrangement of the traffic light connection module and the main controller, and the safety of pedestrians in crossing can be guaranteed.
Description
Technical Field
The invention relates to the technical field of traffic control equipment, in particular to a safe lifting roadblock for traffic control.
Background
The lifting roadblock belongs to equipment for controlling vehicles to pass, can be matched with a barrier gate control system and the like for use, and can also be used independently; the lifting roadblock can be lifted and lowered and does not depend on manpower; the safety protection device is mainly developed for preventing a non-allowed vehicle from intruding into a sensitive area, and has high reliability.
With the recent economic development, vehicles are more and more, but certain vehicles violate traffic regulations and bring huge potential safety hazards to people, so how to perform traffic control becomes important, and effective measures and auxiliary equipment are needed for control. But the partial management and control to road and vehicle can be realized to the lift roadblock among the prior art, but need artificially set up the time quantum and go up and down to intercept the vehicle, lift roadblock itself does not support to calculate the interception according to actual road conditions intelligence, just also can't manage and control the vehicle in a flexible way, and then the availability factor is comparatively low, and the degree of safety to pedestrian's protection is also not high.
Therefore, how to invent a safe lifting roadblock for traffic control becomes a problem to be solved at present.
Disclosure of Invention
The invention aims to provide a safe lifting roadblock for traffic control, which can realize intelligent calculation and interception of vehicles according to actual road conditions, flexibly control the vehicles, replace manual fixed-time interception, and improve the safety of protecting pedestrians.
In order to achieve the purpose, the invention provides the following technical scheme: a safe lifting roadblock for traffic control comprises a chassis, wherein a bottom barrel is fixedly installed at the top of the chassis, a cavity is formed inside the bottom barrel, a flange is fixedly installed at the top of the bottom barrel, an anti-collision column body is slidably connected into the inner cavity of the bottom barrel, a main controller is arranged inside the bottom barrel, and the main controller is electrically connected with a pressure signal module; the transmission mechanism is fixedly arranged at the top of the chassis, and also comprises a hydraulic machine, a hydraulic cylinder, a guide rail and a bearing beam, and is used for transmitting the lifting operation of the anti-collision column body; the hydraulic machine is fixedly arranged on the other side of the top of the chassis, the guide rails are arranged on two sides in the cavity, the bearing beam is fixedly arranged on the top of the chassis, and the hydraulic cylinder is fixedly arranged on the top of the bearing beam; the pressure sensors are arranged at the bottom of the chassis and electrically connected with the pressure signal module, and the number of the pressure sensors is two, and the two pressure sensors are used for sensing people and vehicles on a road; the traffic light connection module is electrically connected with the main controller and is used for carrying out information synchronization with the traffic light interconnection in the road.
Preferably, the voice prompt module is electrically connected with the master controller and is used for giving safety prompts to people and vehicles on the road.
Preferably, the weather module is electrically connected with the main controller and is used for automatically adjusting the traffic control time period according to real-time weather.
Preferably, the warning lamp is electrically connected with the main controller and used for reminding a driver of the existence of the roadblock at night.
Preferably, the lifting controller is electrically connected with the main controller and is used for controlling the lifting speed of the anti-collision column.
Preferably, the camera is electrically connected with the shooting recognition module and is used for shooting the license plate of the coming vehicle.
Preferably, the radar speed measuring module is electrically connected with the master controller and used for measuring the speed of the coming vehicle.
Preferably, the other side of the inner cavity of the bottom barrel is provided with a lower limiter and an upper limiter, the lower limiter is used for limiting when the anti-collision column body descends, and the upper limiter is used for limiting when the anti-collision column body ascends.
Preferably, the other side of the inner cavity of the bottom barrel is provided with a lower limiter and an upper limiter, the lower limiter is used for limiting when the anti-collision column body descends, and the upper limiter is used for limiting when the anti-collision column body ascends.
According to the invention, the intelligent calculation and interception of the vehicle according to the actual road condition can be realized, the vehicle can be flexibly controlled, and the manual fixed-time interception is replaced, so that the safety degree of protecting pedestrians is improved.
Compared with the prior art, the invention has the beneficial effects that:
when the lifting roadblock is installed on a road, the pressure sensor 10 is embedded under the ground in front of the lifting roadblock, when a pedestrian passes through the ground, the pressure sensor 10 can sense a certain pressure value, the pressure value is within a set pedestrian pressure value range, and the pressure signal module 17 can control the anti-collision column 6 to be lifted in advance to intercept the vehicle, so that the pedestrian is allowed to pass preferentially, and the passing safety of the pedestrian is guaranteed; the traffic light connecting module 13 in the lifting roadblock can be interconnected with the traffic light at the position, so that vehicles can be lifted and intercepted according to the red light, and the vehicles can be lowered and pass according to the green light, so that part of the vehicles can be prevented from running the red light, and the safety of pedestrians in walking is guaranteed; the lifting roadblock is driven by a transmission mechanism 7 to lift an anti-collision column 6, a hydraulic press 701 in the transmission mechanism 7 guides a hydraulic cylinder 702 during the operation process, then the hydraulic cylinder 702 drives the anti-collision column 6 to lift or lower, and the anti-collision column 6 slides on a guide rail 703 during lifting or lowering; because the anti-collision column body 6 driven by the hydraulic cylinder 702 has certain gravity, the gravity is borne by the bearing beam 704, and the hydraulic lifting is carried out by adopting the transmission mechanism 7, so that the stability is higher, and the lifting speed is higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an overall structure of a safe lifting barricade for traffic control according to the present invention;
FIG. 2 is a schematic view of a driving mechanism of a safety lifting barrier for traffic control according to the present invention;
fig. 3 is a schematic block diagram of a safe lifting barrier for traffic control according to the present invention.
The labels in the figure are: 1. a chassis; 2. a lower stopper; 3. a bottom cylinder; 4. an upper stopper; 5. a flange plate; 6. an anti-collision column; 7. a transmission mechanism; 701. a hydraulic press; 702. a hydraulic cylinder; 703. a guide rail; 704. a spandrel girder; 8. a warning light; 9. a camera; 10. a pressure sensor; 11. a voice prompt module; 12. a network control module; 13. a traffic light connection module; 14. a lifting controller; 15. a shooting identification module; 16. a radar speed measuring module; 17. a pressure signal module; 18. a weather module; 19. and a master controller.
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 and 3, in an embodiment of the present invention, a safe lifting roadblock for traffic control includes a chassis 1, a bottom tube 3 is fixedly installed on the top of the chassis 1, a cavity is inside the bottom tube 3, a flange 5 is fixedly installed on the top of the bottom tube 3, an anti-collision column 6 is slidably connected in the cavity inside the bottom tube 3, a main controller 19 is installed inside the bottom tube 3, and the main controller 19 is electrically connected with a pressure signal module 17;
referring to fig. 1 and 2, the transmission mechanism 7 is fixedly installed on the top of the chassis 1, and the transmission mechanism 7 further includes a hydraulic press 701, a hydraulic cylinder 702, a guide rail 703 and a load-bearing beam 704; the hydraulic machine 701 is fixedly arranged on the other side of the top of the chassis 1 and used for electrifying and guiding the hydraulic cylinder 702; the guide rails 703 are arranged on two sides in the cavity and are used for the anti-collision column 6 to slide when ascending or descending; the bearing beam 704 is fixedly arranged at the top of the chassis 1 and used for bearing the gravity of the hydraulic cylinder 702; the hydraulic cylinder 702 is fixedly arranged at the top of the bearing beam 704 and is used for driving the anti-collision column 6 to ascend or descend; by adding such a setting, the crash cylinder 6 can be lifted by hydraulic pressure, and the stability performance is more efficient.
Referring to fig. 1 and 3, the pressure sensors 10 are disposed at the bottom of the chassis 1, the pressure sensors 10 are electrically connected to the pressure signal module 17, and the number of the pressure sensors 10 is two, and the pressure sensors are used for sensing people on the road; the pressure sensor is buried underground, the position of the pressure sensor is in front of the lifting roadblock, when a pedestrian comes and feels a pressure value, the pressure signal module 17 controls the anti-collision column 6 to rise in advance to intercept vehicles, and the arrangement is added, so that the passing safety of the pedestrian is guaranteed.
Referring to fig. 3, the traffic light connection module 13 is electrically connected to the main controller 19, and is configured to perform information synchronization with the traffic light interconnection in the road; when installing the road to this lift roadblock, traffic lights connection module 13 can carry out the interconnection with the traffic lights of position to rise the interception vehicle according to the red light, fall according to the green light and let the vehicle current, through adding such setting, make and prevent that the vehicle from rushing the red light, safety when the guarantee pedestrian crosses the crossing.
Referring to fig. 3, the voice prompt module 11 is electrically connected to the main controller 19, and is configured to give a safety prompt to people and vehicles traveling on the road; when the lifting roadblock is installed at a pedestrian crossing, under the condition of pedestrian red light, a pedestrian passes through the crossing, the voice prompt module 11 receives a control command of the main controller 19, broadcasts and prompts voice, and through the arrangement, a pedestrian safety idea is prompted for safety prompt.
Referring to fig. 3, the weather module 18 is electrically connected to the main controller 19 and configured to automatically adjust a traffic control time period according to real-time weather; when the lifting roadblock works in a road, the weather module 18 automatically adjusts the lifting time period according to weather data, so that the crossing traffic time period of pedestrians is longer, and by adding the arrangement, the crossing time of the pedestrians is increased in severe weather, and a certain safety degree is increased.
Referring to fig. 3, the warning light 8 is electrically connected to the main controller 19 for indicating the driver that there is a road block at night; this lift roadblock is installed when the road, is in the in-process that rises at night, and warning light 8 can twinkle light, through adding such setting for can make it striking see the place ahead to the driver when driving the process night and have the lift roadblock.
Referring to fig. 1 and 3, the lifting controller 14 is electrically connected to the main controller 19 for controlling the lifting speed of the crash column 6; the lift roadblock is installed in the road, and the pedestrian when waiting for the red light, has some pedestrian to sit on the lift roadblock, and at this moment lift controller 14 experiences when the gravity value, and it can control and slowly descend when descending, through adding such setting for prevent that the pedestrian from sitting and lead to falling down when descending because of fast on the anticollision cylinder 6, got rid of this potential safety hazard.
Referring to fig. 1 and 3, the camera 9 is electrically connected to the photographing recognition module 15 for photographing the license plate of the vehicle; this lift roadblock carries out the during operation in the road, and the real-time behavior of on-the-spot traffic management and control is looked over to backstage control personnel's accessible open camera 9, through adding such setting, makes things convenient for management and control personnel to handle traffic emergency according to the data of making a video recording.
Referring to fig. 3, the radar speed measuring module 16 is electrically connected to the main controller 19 for measuring the speed of the coming vehicle; when the lift roadblock during operation in the road, at first measure the speed of the vehicle that the distance came through radar speed measuring module 16, through adding such setting for crashproof cylinder 6 can select to rise according to the speed of the vehicle that the place ahead came before rising, thereby prevents that the vehicle from colliding, further ensures the degree of safety of management and control work.
Referring to fig. 1, a lower limiter 2 and an upper limiter 4 are arranged on the other side of the inner cavity of the bottom barrel 3, the lower limiter 2 is used for limiting when the anti-collision column 6 descends, the upper limiter 4 is used for limiting when the anti-collision column 6 ascends, and the lifting position of the anti-collision column 6 can be controlled accurately by adding the arrangement.
The working principle and the using process of the invention are as follows: when the lifting roadblock is installed on a road, the pressure sensor 10 is embedded under the ground in front of the lifting roadblock, and when a pedestrian comes from sensing a pressure value, the pressure signal module 17 controls the anti-collision column 6 to be lifted in advance to intercept the vehicle, so that the pedestrian can pass preferentially, and the passing safety of the pedestrian is guaranteed; the traffic light connecting module 13 in the lifting roadblock can be interconnected with the traffic light at the position, so that vehicles can be lifted and intercepted according to the red light, and the vehicles can be lowered and pass according to the green light, so that part of the vehicles can be prevented from running the red light, and the safety of pedestrians in walking is guaranteed; the lifting roadblock is driven by a transmission mechanism 7 to lift an anti-collision column 6, a hydraulic press 701 in the transmission mechanism 7 guides a hydraulic cylinder 702 during the operation process, then the hydraulic cylinder 702 drives the anti-collision column 6 to lift or lower, and the anti-collision column 6 slides on a guide rail 703 during lifting or lowering; because the anti-collision column body 6 driven by the hydraulic cylinder 702 has certain gravity, the gravity is borne by the bearing beam 704, and the hydraulic lifting is carried out by adopting the transmission mechanism 7, so that the stability is higher, and the lifting smoothness is also higher. Then, when the lifting roadblock is installed at a pedestrian crossing, and under the condition of pedestrian red light, a pedestrian passes through the crossing, the voice prompt module 11 receives a control command of the main controller 19 and broadcasts and prompts voice, so that a pedestrian safety idea is prompted for safety prompt. And the weather module 18 can automatically control the lifting time period of the anti-collision column 6 according to weather data, so that the crossing passing time period of pedestrians is prolonged, the crossing passing time of the pedestrians is increased in severe weather, and a certain safety degree is improved. The anti-collision column body 6 is in the in-process of rising at night, and the warning light 8 can glisten light to it has the lift roadblock to make its striking seeing the place ahead to driver when driving the process at night. When the pedestrian waits for the red light, have some pedestrian to sit on the lift roadblock, at this moment lift controller 14 experience the gravity value when, it can control and slowly descend when descending for prevent that the pedestrian from sitting and leading to falling down when descending fast on collision column 6, got rid of this potential safety hazard. This lift roadblock carries out the during operation in the road, and backstage control personnel's accessible is opened camera 9 and is looked over the real-time behavior of on-the-spot traffic management and control, if there is emergency's emergence on the traffic management and control scene, can make things convenient for the management and control personnel to handle according to the data of making a video recording, also can realize the management and control personnel simultaneously and look over the on-the-spot condition. When the lift roadblock during operation in the road, at first measure the speed of the vehicle that the distance came through radar speed measuring module 16 for anticollision cylinder 6 can select to rise according to the speed of the vehicle that the place ahead came before rising, thereby prevents that the vehicle from colliding, further ensures the degree of safety of management and control work.
According to the invention, the intelligent calculation and interception of the vehicle according to the actual road condition can be realized, the vehicle can be flexibly controlled, and the manual fixed-time interception is replaced, so that the safety degree of protecting pedestrians is improved.
To this end, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A safe lifting roadblock for traffic control comprises a chassis (1) and is characterized in that a bottom cylinder (3) is fixedly mounted at the top of the chassis (1), a cavity is formed inside the bottom cylinder (3), a flange plate (5) is fixedly mounted at the top of the bottom cylinder (3), an anti-collision column body (6) is connected in the inner cavity of the bottom cylinder (3) in a sliding mode, a main controller (19) is arranged inside the bottom cylinder (3), and the main controller (19) is electrically connected with a pressure signal module (17);
the transmission mechanism (7) is fixedly installed at the top of the chassis (1), and the transmission mechanism (7) further comprises a hydraulic machine (701), a hydraulic cylinder (702), a guide rail (703) and a bearing beam (704) and is used for transmitting the lifting operation of the anti-collision column body (6).
The hydraulic machine (701) is fixedly installed on the other side of the top of the chassis (1), the guide rails (703) are arranged on two sides in the cavity, the bearing beam (704) is fixedly installed on the top of the chassis (1), and the hydraulic cylinder (702) is fixedly installed on the top of the bearing beam (704).
The pressure sensors (10) are arranged at the bottom of the chassis (1), the pressure sensors (10) are electrically connected with the pressure signal module (17), and the number of the pressure sensors (10) is two and used for sensing people and vehicles on a road.
And the traffic light connecting module (13) is electrically connected with the main controller (19) and is used for carrying out information synchronization with the traffic light interconnection in the road.
2. The safe lifting roadblock for traffic control according to claim 1, further comprising a voice prompt module (11), wherein the voice prompt module (11) is electrically connected with the master controller (19) and is used for giving a safety prompt to people and vehicles traveling on the road.
3. The safety lifting barricade for traffic control according to claim 1, further comprising a weather module (18), wherein the weather module (18) is electrically connected with the master controller (19) and is used for automatically adjusting a traffic control time period according to real-time weather.
4. The safe lifting roadblock for traffic control according to claim 1, characterized in that, further comprises a warning light (8), the warning light (8) is electrically connected with the main controller (19) for reminding a driver of the existence of the roadblock at night.
5. A safety traffic control lifting barrier according to claim 1, further comprising a lifting controller (14), said lifting controller (14) being electrically connected to said master controller (19) for controlling the lifting speed of the crash cylinders (6).
6. The lifting roadblock for traffic control of safety according to claim 1, characterized by further comprising a camera (9) and a shooting recognition module (15), wherein the camera (9) is electrically connected with the shooting recognition module (15) for shooting the license plate of the coming vehicle.
7. A safety traffic control lifting barricade according to claim 1, further comprising a radar speed measuring module (16), said radar speed measuring module (16) being electrically connected to said master controller (19) for measuring the speed of the coming vehicle.
8. The safe lifting roadblock for traffic control according to claim 1, characterized in that a lower stopper (2) and an upper stopper (4) are arranged on the other side of the internal cavity of the bottom tube (3), the lower stopper (2) is used for limiting when the anti-collision column (6) descends, and the upper stopper (4) is used for limiting when the anti-collision column (6) ascends.
9. The safe lifting roadblock for traffic control according to claim 1, characterized in that a lower stopper (2) and an upper stopper (4) are arranged on the other side of the internal cavity of the bottom tube (3), the lower stopper (2) is used for limiting when the anti-collision column (6) descends, and the upper stopper (4) is used for limiting when the anti-collision column (6) ascends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931569.XA CN113699916A (en) | 2021-08-13 | 2021-08-13 | Safe traffic control is with lift roadblock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931569.XA CN113699916A (en) | 2021-08-13 | 2021-08-13 | Safe traffic control is with lift roadblock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113699916A true CN113699916A (en) | 2021-11-26 |
Family
ID=78652639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110931569.XA Withdrawn CN113699916A (en) | 2021-08-13 | 2021-08-13 | Safe traffic control is with lift roadblock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113699916A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240447A (en) * | 2022-07-29 | 2022-10-25 | 重庆电子工程职业学院 | Intelligent transportation obstacle stake |
| CN115346381A (en) * | 2022-07-25 | 2022-11-15 | 顾春英 | Intelligent traffic signal auxiliary early warning device and method |
| CN115346381B (en) * | 2022-07-25 | 2024-04-26 | 湛江市中达建设工程检测咨询有限公司 | Intelligent traffic signal auxiliary early warning device and method |
-
2021
- 2021-08-13 CN CN202110931569.XA patent/CN113699916A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115346381A (en) * | 2022-07-25 | 2022-11-15 | 顾春英 | Intelligent traffic signal auxiliary early warning device and method |
| CN115346381B (en) * | 2022-07-25 | 2024-04-26 | 湛江市中达建设工程检测咨询有限公司 | Intelligent traffic signal auxiliary early warning device and method |
| CN115240447A (en) * | 2022-07-29 | 2022-10-25 | 重庆电子工程职业学院 | Intelligent transportation obstacle stake |
| CN115240447B (en) * | 2022-07-29 | 2023-04-25 | 重庆电子工程职业学院 | Intelligent traffic obstacle stake |
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Application publication date: 20211126 |