CN114373304B - Expressway intelligent projection warning system based on intelligent lamp post - Google Patents
Expressway intelligent projection warning system based on intelligent lamp post Download PDFInfo
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- CN114373304B CN114373304B CN202210119576.4A CN202210119576A CN114373304B CN 114373304 B CN114373304 B CN 114373304B CN 202210119576 A CN202210119576 A CN 202210119576A CN 114373304 B CN114373304 B CN 114373304B
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- 230000007246 mechanism Effects 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 19
- 230000008602 contraction Effects 0.000 claims description 7
- 206010039203 Road traffic accident Diseases 0.000 abstract description 13
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- 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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- Business, Economics & Management (AREA)
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- Traffic Control Systems (AREA)
Abstract
The invention relates to the technical field of traffic safety facilities, and provides an intelligent projection warning system for an expressway based on an intelligent lamp post, which comprises a warning component and an intelligent lamp post projection system, wherein the intelligent lamp post projection system comprises a group of lamp posts arranged on the outer side of the expressway along the front-rear direction, a camera acquisition system arranged on each lamp post and used for acquiring the position A of an accident vehicle, and a control system connected with the camera acquisition system, the warning component is a projection device arranged on each lamp post, the controlled end of the projection device is connected with the output end of the control system, the position of the lamp post where the opened projection device is positioned is set as DN, N is more than or equal to 1 and is an integer, and DN is positioned behind the A and the distance between DN and A is less than or equal to 200 meters. The problems that in the related art, when traffic accidents, illegal parking, reverse driving and the like are met, early warning cannot be performed in time, and secondary traffic accidents are likely to be caused are solved.
Description
Technical Field
The invention relates to the technical field of traffic safety facilities, in particular to an intelligent projection warning system for an expressway based on an intelligent lamp post.
Background
Along with the continuous acceleration of road construction in China, the number of motor vehicles is rapidly increased, and the use amount of expressways is increased. When a large number of motor vehicles run on the expressway rapidly, traffic accidents, illegal parking, reverse running and other conditions occur, and when the traffic accidents occur, some drivers can place triangular warning signs behind the vehicles in time, but the national traffic laws prescribe that the triangular warning signs are placed outside 150 meters behind the vehicles on the expressway, so that the placement positions of some drivers do not reach standards at all or even place the triangular warning signs for less routes; the possibility of placing the triangular warning board is low for drivers who park illegally; for a vehicle traveling in reverse, it is not possible to place a triangular warning sign at all. When traffic accidents, illegal parking, reverse driving and other conditions are met, if the vehicles coming from the back cannot receive early warning in time, secondary traffic accidents are likely to be caused.
Disclosure of Invention
The invention provides an intelligent projection warning system for an expressway based on an intelligent lamp post, which solves the problem that secondary traffic accidents are likely to be caused if a vehicle running in the rear cannot receive early warning in time when traffic accidents, illegal parking, reverse running and other conditions are met in the related technology.
The technical scheme of the invention is as follows: expressway intelligent projection warning system based on wisdom lamp pole, including warning part, the key lies in: the warning system further comprises a smart lamp post projection system, the smart lamp post projection system comprises a group of lamp posts arranged on the outer side of the expressway along the front-rear direction, a camera acquisition system arranged on each lamp post and used for acquiring the accident vehicle position A, and a control system connected with the camera acquisition system, the warning component is a projection device arranged on each lamp post and used for projecting a warning sign on a lane of the expressway, the controlled end of the projection device is connected with the output end of the control system, the position of the lamp post where the projection device is opened is set to be DN, N is more than or equal to 1 and is an integer, and DN is positioned behind A and the distance between DN and A is less than or equal to 200 meters.
The camera acquisition system comprises a camera and a distance measuring device, wherein the output ends of the camera and the distance measuring device are connected with the input end of the control system, and the controlled end of the distance measuring device is connected with the output end of the control system.
The intelligent lamp pole projection system further comprises a cantilever, one end of the cantilever is fixedly connected with the lamp pole, the other end of the cantilever extends to the position above the innermost lane of the expressway, the intelligent lamp pole projection system further comprises a holding box which is hoisted below the cantilever, the projection device is located in the holding box, a through hole is formed in the position, corresponding to the projection lamp of the projection device, of the bottom plate of the holding box, the holding box is in sliding fit with the cantilever by means of expansion and contraction of the first telescopic mechanism, the moving degree of freedom of the first telescopic mechanism is close to or far away from the lamp pole, and the controlled end of the first telescopic mechanism is connected with the control system.
The first telescopic mechanism is located between the accommodating box and the lamp post, the movable end of the first telescopic mechanism is connected with the accommodating box, and the fixed end of the first telescopic mechanism is connected with at least one of the cantilever and the lamp post.
The fixed end of the first telescopic mechanism is fixedly connected with the cantilever and the lamp post at the same time.
Hanging plates are arranged on the front side and the rear side of the top of the accommodating box, first dovetail strips arranged in the left-right direction are arranged on the inner side face of each hanging plate, first dovetail grooves are formed in the front side and the rear side face of the cantilever, and the first dovetail strips are spliced with the first dovetail grooves.
The intelligent lamp post projection system further comprises guide plates arranged below the accommodating box and located on two sides of the through hole, and a sealing cover which is inserted between the two guide plates and is sealed or separated with the aid of the expansion and contraction of the second expansion mechanism and the contact of the through hole, wherein the fixed end of the second expansion mechanism is fixedly connected with the accommodating box, and the controlled end of the second expansion mechanism is connected with the control system.
The inner side surfaces of the guide plates are provided with second dovetail grooves which are horizontally arranged, the two sides of the sealing cover are provided with second dovetail strips, and the sealing cover is connected with the guide plates by means of the plug-in fit of the second dovetail strips and the second dovetail grooves.
The upper end face of the cantilever is an inclined plane, and the outer end of the cantilever is positioned below.
The intelligent lamp post projection system further comprises an alarm fixed on the lamp post, and the controlled end of the alarm is connected with the control system.
The working principle and the beneficial effects of the invention are as follows: because the position of each lamp pole is fixed, the position of each part on the lamp pole is unique, the camera acquisition system acquires vehicle information on the expressway in real time and sends the acquired vehicle information to the control system, when traffic accidents, illegal parking or reverse driving conditions occur, the control system acquires the position A of an accident vehicle through the camera acquisition system, and the projection devices on all the lamp poles in the 200-meter range behind A are started, the projection devices project warning marks such as accidents, speed reduction and the like on the lanes of the expressway, the driver in front of the coming vehicle behind is reminded that the problem needs to be avoided in time, and the secondary traffic accidents can be effectively reduced.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of a connection structure between a sealing cover and a containing box in the invention.
Fig. 3 is a left side view of the receiving box of fig. 1.
Fig. 4 is a functional block diagram of the present invention.
Fig. 5 is a schematic diagram of the accident vehicle position and the first position of the lamp post where the turned-on projection device is located in the present invention.
Fig. 6 is a schematic diagram of the accident vehicle position and the second position of the lamp post where the turned-on projection device is located in the present invention.
In the figure: 1. lamp pole, 2, camera acquisition system, 3, control system, 4, projection arrangement, 5, lane, 6, cantilever, 7, holding box, 8, via hole, 9, first telescopic machanism, 10, hanger plate, 11, first dovetail, 12, first dovetail, 13, deflector, 14, second telescopic machanism, 15, sealed lid, 16, second dovetail, 17, second dovetail, 18, siren.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the present invention, are intended to be encompassed within the scope of the present invention.
The embodiment, as shown in fig. 1, an expressway intelligent projection warning system based on wisdom lamp pole, including warning part, still include wisdom lamp pole projecting system, wisdom lamp pole projecting system includes a set of lamp pole 1 that sets up along fore-and-aft direction in the expressway outside, set up on every lamp pole 1 and be used for gathering accident car position A's camera acquisition system 2, and the control system 3 who is connected with camera acquisition system 2, warning part is setting up on every lamp pole 1 and be used for projecting the projection arrangement 4 of warning sign on the lane of this expressway, projection arrangement 4 is connected with the lamp pole 1 electricity at place thereof, the controlled end of projection arrangement 4 is connected with the output of control system 3, set for the position of the lamp pole 1 that is opened to be DN, N is no less than 1 and is the integer, then DN is located behind the A and DN is less than or equal to 200 meters to the interval between A.
The camera acquisition system 2 comprises a camera and a distance measuring device, wherein the output ends of the camera and the distance measuring device are connected with the input end of the control system 3, and the controlled end of the distance measuring device is connected with the output end of the control system 3. The camera collects vehicle information on the expressway in real time, the collected vehicle information is sent to the control system 3, when traffic accidents, illegal parking or reverse driving conditions occur, the control system 3 sends out signals to enable the distance measuring device to measure the distance from the lamp post 1 where the distance measuring device is located to an accident car, the distance measuring device and the camera shooting the accident are located on the same lamp post 1, the control system 3 calculates to obtain the position A of the accident car, and the measuring result is more accurate.
As a further improvement of the invention, the smart lamp post projection system further comprises a cantilever 6, one end of which is fixedly connected with the lamp post 1, the other end of which extends above the innermost lane 5 of the expressway, and a containing box 7, which is hung below the cantilever 6, wherein the projection device 4 is positioned in the containing box 7, a through hole 8 is formed in the bottom plate of the containing box 7 at a position corresponding to the projection lamp of the projection device 4, the containing box 7 forms sliding fit with the cantilever 6 by means of the expansion and contraction of a first expansion mechanism 9, the controlled end of the first expansion mechanism 9 is connected with the control system 3, and the movement freedom of the first expansion mechanism 9 is close to or far from the lamp post 1. As shown in fig. 1, when the expressway has two or more lanes 5 in the same direction, the accommodating box 7 can be pushed and pulled by the expansion and contraction of the first expansion mechanism 9, the accommodating box 7 drives the projection device 4 to synchronously move along the left-right direction, the projection device 4 is moved to the lane 5 where the accident vehicle is located, the projection position is more accurate, the accident vehicle can be found by a driver of the lane in time, and the safety is higher. The projection device 4 is hidden inside the accommodating box 7, so that the wind, the sun and the rain can be avoided, and the service life of the projection device 4 is prolonged.
As a further development of the invention, a first telescopic mechanism 9 is located between the receiving box 7 and the lamp pole 1, the movable end of the first telescopic mechanism 9 being connected to the receiving box 7, the fixed end being connected to at least one of the cantilever 6 and the lamp pole 1. As long as the first telescopic mechanism 9 is secured.
As a further development of the invention, the fixed end of the first telescopic means 9 is fixedly connected to both the cantilever 6 and the lamp pole 1. The first telescopic mechanism 9 is fixed, and meanwhile, the cantilever 6 can be supported, so that the connection between the cantilever 6 and the lamp pole 1 is more stable and reliable.
As a further improvement of the invention, hanger plates 10 are arranged on the front side and the rear side of the top of the accommodating box 7, first dovetail strips 11 arranged along the left-right direction are arranged on the inner side surface of each hanger plate 10, first dovetail grooves 12 are formed on the front side and the rear side surface of the cantilever 6, and the first dovetail strips 11 are spliced with the first dovetail grooves 12. As shown in fig. 1 and 3, the first dovetail strip 11 and the first dovetail groove 12 are spliced to effectively play a role in guiding, so that the accommodating box 7 is more stable and reliable in the process of moving left and right along the cantilever 6. The top surface of holding box 7 is the inclined plane and is close to the one end downward sloping of lamp pole 1, and as shown in fig. 1, the right-hand member downward sloping of holding box 7 top surface, and during rainy, the rainwater can flow on the highway right, avoids holding box 7 to have water to store up.
As a further improvement of the invention, the smart lamp post projection system further comprises guide plates 13 arranged below the accommodating box 7 and positioned at two sides of the through hole 8, and a sealing cover 15 inserted between the two guide plates 13 and contacted with the through hole 8 for sealing or separating by means of the expansion and contraction of a second expansion mechanism 14, wherein the fixed end of the second expansion mechanism 14 is fixedly connected with the accommodating box 7, and the controlled end of the second expansion mechanism 14 is connected with the control system 3.
As shown in fig. 2, two front and rear guide plates 13 are arranged below the accommodating box 7, a sealing cover 15 is arranged between the two guide plates 13, a second telescopic mechanism 14 is arranged on the left side of the guide plates 13, a fixed end of the second telescopic mechanism 14 is fixedly connected with the accommodating box 7, a movable end of the second telescopic mechanism 14 is connected with the left end of the sealing cover 15, under normal conditions, the sealing cover 15 is in contact with and seals with the through hole 8, when a traffic accident, illegal parking or reverse driving condition occurs on a highway, the control system 3 opens the projection devices 4 positioned on all lamp poles within a range of 200 meters behind the accident car position A, and enables the second telescopic mechanism 14 below the opened projection devices 4 to shrink, so that the sealing cover 15 is separated from the through hole 8 at the bottom of the accommodating box 7, and the projection devices 4 project warning signs such as accidents, speed reduction and the like on the lanes of the highway.
As a further improvement of the invention, the inner side surfaces of the guide plates 13 are provided with second dovetail grooves 16 which are horizontally arranged, the two sides of the sealing cover 15 are provided with second dovetail strips 17, and the sealing cover 15 is connected with the guide plates 13 by means of the plug-in fit of the second dovetail strips 17 and the second dovetail grooves 16. As shown in fig. 2, the second dovetail strip 17 and the second dovetail groove 16 are inserted and connected to effectively play a role in guiding, so that the sealing cover 15 is more stable and reliable in the process of moving left and right along the guide plate 13.
As a further improvement of the invention, the upper end face of the cantilever 6 is inclined and the outer end of the cantilever 6 is located below. As shown in fig. 1, the right end of the upper end surface of the cantilever 6 is inclined downward, and when raining, rainwater can flow to the right outside the expressway, so that water accumulation on the cantilever 6 is avoided.
As a further improvement of the invention, the smart light pole projection system further comprises an alarm 18 fixed to the light pole 1, the controlled end of the alarm 18 being connected to the control system 3. As shown in fig. 3, when the control system 3 turns on the projection device 4, the alarm 18 is turned on, so that the alarm 18 sends out an alarm signal, and the dual warning is better.
When the invention is specifically used, as shown in fig. 5, two lanes 5 in the same direction are arranged on the expressway, a group of lamp posts 1 are arranged on the right side of all lanes 5 along the front-rear direction, and because the positions of all the lamp posts 1 are fixed, the positions of all the components on the lamp posts 1 are unique, the camera of the camera acquisition system 2 acquires the vehicle information on the expressway in real time and sends the acquired vehicle information to the control system 3, and the following two conditions exist:
firstly, the accident car is stopped, a camera on a lamp post 1 with the position of D0 collects the accident car, at the moment, a control system 3 sends a signal to enable a distance measuring device on the lamp post 1 with the position of D0 to measure the front-back distance and the left-right distance between the lamp post 1 and the accident car, the control system 3 calculates to obtain a lane 5 where the accident car is located and the position A of the accident car, then the accommodating boxes 7 on all the lamp posts 1 (for example, the positions of D1 and D2 in FIG. 5) within the range of 200 meters behind the A are moved to the position above the lane 5 where the accident car is located, and a sealing cover 15 at the bottom of the accommodating box 7 and a projection device 4 in the accommodating boxes 7 are opened;
secondly, the accident car runs reversely from front to back, at the moment, the position of the accident car continuously moves backwards, the accident car is collected by a camera on a lamp post 1 with the position of D0 at the initial time, and the treatment mode is the same as that of the first kind; as the accident car continues to move backward, when the camera on the lamp post 1 with the position D0 cannot collect the accident car, and the camera on the lamp post 1 with the position D1 collects the accident car, each part on the lamp post 1 with the position D1 is closed and returns to the initial position, the distance measuring device on the lamp post 1 with the position D1 measures the front-back distance and the left-right distance from the lamp post 1 to the accident car, the control system 3 calculates to obtain the lane 5 where the accident car is located and a new accident car position a, then moves the accommodating box 7 on the lamp post 1 with the position D3 in fig. 6 which is newly increased within 200 meters behind the new accident car position a to above the lane 5 where the accident car is located, and opens the sealing cover 15 at the bottom of the accommodating box 7 and the projection device 4 in the accommodating box 7, thus the operation is repeated.
The projection device projects warning signs such as accidents, speed reduction and the like to the lane 5 of the expressway, reminds a driver of a rear coming vehicle that the problem needs to be avoided in time, and can effectively reduce secondary traffic accidents.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. Expressway intelligent projection warning system based on wisdom lamp pole, including warning part, its characterized in that: the warning system further comprises a smart lamp post projection system, the smart lamp post projection system comprises a group of lamp posts (1) arranged on the outer side of the expressway along the front-rear direction, a camera acquisition system (2) arranged on each lamp post (1) and used for acquiring vehicle information, and a control system (3) connected with the camera acquisition system (2), the warning component is a projection device (4) arranged on each lamp post (1) and used for projecting a warning mark on a lane of the expressway, the controlled end of the projection device (4) is connected with the output end of the control system (3), the position of an accident vehicle is set to be A, the position of the lamp post (1) where the turned-on projection device (4) is located is DN, N is more than or equal to 1 and is an integer, and the DN is located behind the A and the distance between DN and the A is less than or equal to 200 meters;
the camera acquisition system (2) comprises a camera and a distance measuring device, wherein the output ends of the camera and the distance measuring device are connected with the input end of the control system (3), and the controlled end of the distance measuring device is connected with the output end of the control system (3);
the distance measuring device measures the front-back distance and the left-right distance between the lamp post (1) and the accident vehicle;
the intelligent lamp post projection system further comprises a cantilever (6) with one end fixedly connected with the lamp post (1) and the other end extending to the upper part of the innermost lane (5) of the expressway, and further comprises a containing box (7) hung below the cantilever (6), the projection device (4) is positioned in the containing box (7), a through hole (8) is formed in the bottom plate of the containing box (7) and corresponds to the projection lamp of the projection device (4), the containing box (7) forms sliding fit with the cantilever (6) by means of the expansion and contraction of a first expansion mechanism (9) and has a moving degree of freedom close to or far away from the lamp post (1), and the controlled end of the first expansion mechanism (9) is connected with the control system (3);
the first telescopic mechanism (9) is positioned between the accommodating box (7) and the lamp post (1), the movable end of the first telescopic mechanism (9) is connected with the accommodating box (7), and the fixed end is connected with at least one of the cantilever (6) and the lamp post (1);
the upper end face of the cantilever (6) is an inclined plane, and the outer end of the cantilever (6) is positioned below;
the intelligent lamp post projection system further comprises guide plates (13) arranged below the accommodating box (7) and positioned on two sides of the through hole (8), and a sealing cover (15) inserted between the two guide plates (13) and contacted with the through hole (8) for sealing or separating by means of the expansion and contraction of a second expansion mechanism (14), wherein the fixed end of the second expansion mechanism (14) is fixedly connected with the accommodating box (7), and the controlled end of the second expansion mechanism (14) is connected with the control system (3);
the inner side surfaces of the guide plates (13) are provided with second dovetail grooves (16) which are horizontally arranged, two sides of the sealing cover (15) are provided with second dovetail strips (17), and the sealing cover (15) is connected with the guide plates (13) by means of the plug-in matching of the second dovetail strips (17) and the second dovetail grooves (16).
2. The intelligent projection warning system for the expressway based on the intelligent lamp post according to claim 1, wherein: the fixed end of the first telescopic mechanism (9) is fixedly connected with the cantilever (6) and the lamp post (1) at the same time.
3. The intelligent projection warning system for the expressway based on the intelligent lamp post according to claim 1, wherein: hanging plates (10) are arranged on the front side and the rear side of the top of the accommodating box (7), first dovetail strips (11) arranged in the left-right direction are arranged on the inner side face of each hanging plate (10), first dovetail grooves (12) are formed in the front side and the rear side face of the cantilever (6), and the first dovetail strips (11) are spliced with the first dovetail grooves (12).
4. The intelligent projection warning system for the expressway based on the intelligent lamp post according to claim 1, wherein: the intelligent lamp post projection system further comprises an alarm (18) fixed on the lamp post (1), and a controlled end of the alarm (18) is connected with the control system (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119576.4A CN114373304B (en) | 2022-02-08 | 2022-02-08 | Expressway intelligent projection warning system based on intelligent lamp post |
| PCT/CN2022/086211 WO2023151175A1 (en) | 2022-02-08 | 2022-04-12 | Intelligent expressway projection warning system based on smart lamp post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119576.4A CN114373304B (en) | 2022-02-08 | 2022-02-08 | Expressway intelligent projection warning system based on intelligent lamp post |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114373304A CN114373304A (en) | 2022-04-19 |
| CN114373304B true CN114373304B (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210119576.4A Active CN114373304B (en) | 2022-02-08 | 2022-02-08 | Expressway intelligent projection warning system based on intelligent lamp post |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114373304B (en) |
| WO (1) | WO2023151175A1 (en) |
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| CN204409974U (en) * | 2015-02-09 | 2015-06-24 | 温州职业技术学院 | Multi-functional desk |
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| CN207977006U (en) * | 2018-04-17 | 2018-10-16 | 北京筑景盛世科技有限公司 | A kind of Expressway Road intelligent and safe source of early warning and its safety management system |
| KR102026911B1 (en) * | 2019-01-24 | 2019-11-04 | (주)아성정보 | System for preventing multiple collision accident of vehicle |
| CN110136467A (en) * | 2019-06-17 | 2019-08-16 | 南京信息工程大学 | Voluntarily shared highway fault car warning system based on Beidou |
| CN111140795A (en) * | 2020-01-13 | 2020-05-12 | 中铁第四勘察设计院集团有限公司 | Intelligent regulation street lamp and street lamp system |
| CN113034935A (en) * | 2021-03-02 | 2021-06-25 | 山东大学 | Traffic accident safety early warning and vehicle guiding device based on spotlight and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023151175A1 (en) | 2023-08-17 |
| CN114373304A (en) | 2022-04-19 |
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