CN116645778A - Early warning monitoring system for highway construction - Google Patents
Early warning monitoring system for highway construction Download PDFInfo
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- CN116645778A CN116645778A CN202310361369.4A CN202310361369A CN116645778A CN 116645778 A CN116645778 A CN 116645778A CN 202310361369 A CN202310361369 A CN 202310361369A CN 116645778 A CN116645778 A CN 116645778A
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- 238000010276 construction Methods 0.000 title claims abstract description 89
- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 21
- 239000000523 sample Substances 0.000 claims description 16
- 210000000707 wrist Anatomy 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B6/00—Tactile signalling systems, e.g. personal calling systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- Business, Economics & Management (AREA)
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Abstract
The invention discloses an early warning monitoring system for highway construction, which comprises a central monitoring center, wherein the central monitoring center is in communication connection with a shooting module, a speed measuring module, a distance measuring module and an alarm unit; the shooting module is used for shooting and monitoring the environment around the construction in real time and displaying the shot video picture on a display screen of the central monitoring center in real time; the speed measuring module and the distance measuring module are electrically connected with a display module; the speed measuring module is used for detecting the real-time speed of a vehicle travelling towards a construction area in real time; the distance measuring module is used for detecting the distance between a vehicle traveling towards a construction area and a construction site. Through the setting of alarm table ring, can in time remind constructor to escape the scene through vibration warning module to prevent that there is non-construction vehicle to drive into the job site and cause the damage to constructor, and have dual constructor's of reminding function, very big promotion constructor's safety.
Description
Technical Field
The invention relates to the field of construction early warning, in particular to an early warning and monitoring system for highway construction.
Background
With the continuous development of economy, the living standard of people is increasingly improved, and automobiles start to walk into thousands of households, so that great convenience is provided for the travel of people. In order to be more convenient for people to travel daily, a large number of highways are constructed. However, the expressway is damaged even after long-term use, and construction maintenance is required. The early warning monitoring system is required to be used for monitoring the running vehicle in real time during maintenance construction, and the early warning monitoring system in the prior art still has defects.
The highway construction safety accident early warning system and method disclosed in the Chinese patent with the authority of the publication number of CN113989874A, wherein the environment parameters of a construction highway site are acquired through the setting of a data detection unit, the environment parameters of the construction highway site are analyzed, so that the light intensity of a construction highway region is judged, and then the personnel and vehicles entering at the two ends of the construction highway are monitored through a ranging unit, so that the situation that non-construction personnel and vehicles cannot quickly find the construction site due to poor light intensity and enter the construction site by mistake is avoided, and the potential safety hazard to the construction site and constructors on the construction site due to the fact that foreign personnel or vehicles enter the construction site by mistake is avoided. But the light intensity is utilized to remind non-constructors and vehicles in daytime construction, so that an effective reminding effect cannot be achieved, the danger of mistakenly running the vehicles on the construction site exists, the safety of constructors is reduced, effective escape of the constructors cannot be guaranteed, and the safety is low; the construction site is not provided with equipment for reminding constructors of escaping, and once a vehicle runs into a construction area, the safety of the constructors is influenced.
The utility model discloses a highway traffic engineering construction is with early warning monitoring device in chinese patent of authority bulletin number CN113808421a, wherein pass vehicle construction road section is reminded safely through the mode of car machine and pronunciation broadcast with early warning prompt message through wireless connection module and message transmission module, when being close the construction point, show the warning sign through the display screen and all show pass vehicle license plate number and speed, remind driver construction road section safe driving, pass vehicle location and speed measurement are gone up to the traffic police speed measurement management system through monitoring module simultaneously with warning pass vehicle and do not need to disregard highway construction early warning suggestion, guarantee to travel in construction road section with safe speed, early warning suggestion effect is good. But constructors do not have the effective warning to constructors in the construction process, and once non-constructors or drivers break into a construction area, the constructors can not escape, and the safety of the constructors is affected.
The two patents do not have the function of reminding constructors, and the safety of the constructors can be influenced after the vehicle enters a construction area, so that the safety is low. Therefore, an early warning monitoring system for reminding constructors of dangerous object approaching for highway construction is urgently needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the early warning monitoring system for highway construction, through the arrangement of the warning meter ring, constructors can be reminded to escape from the scene in time through the vibration warning module, and the early warning monitoring system has the function of doubly reminding the constructors, so that the safety of the constructors is greatly improved.
In order to solve the technical problems, the invention provides the following technical scheme: the early warning monitoring system for highway construction comprises a central monitoring center, wherein the central monitoring center is in communication connection with a shooting module, a speed measuring module, a distance measuring module and an alarm unit; the shooting module is used for shooting and monitoring the environment around the construction in real time and displaying the shot video picture on a display screen of the central monitoring center in real time; the speed measuring module and the distance measuring module are electrically connected with a display module; the speed measuring module is used for detecting the real-time speed of a vehicle travelling towards a construction area in real time; the distance measuring module is used for detecting the distance between a vehicle travelling towards a construction area and a construction site; the display module is used for displaying warning words and displaying the speed of the vehicle and the distance between the vehicle and the construction site; the speed measuring module and the distance measuring module are in communication connection with the alarm unit, the alarm unit comprises an alarm meter ring worn on the wrist of a constructor, and a vibration alarm module is arranged in the alarm meter ring close to the wrist.
As a preferable technical scheme of the invention, a processing unit is connected between the speed measuring module and the alarm unit in a communication way, and the processing unit comprises a processing module and an analysis module; the processing module is used for processing the information detected by the speed measuring module and the distance measuring module and sending the processed result to the analysis module; the analysis module is used for analyzing and judging the processing result of the processing module and sending the analysis and judgment result to the alarm unit.
As a preferred embodiment of the present invention, the central monitoring center is connected in communication with the analysis module.
As a preferable technical scheme of the invention, the alarm unit further comprises a voice call module and a voice broadcasting module; the voice call module is used for broadcasting the analysis result of the analysis module; the voice broadcasting module is used for broadcasting a warning sign to remind that the front of the vehicle is a construction site.
As a preferable technical scheme of the invention, the voice call module is arranged in the alarm meter ring.
As a preferred technical scheme of the invention, the early warning monitoring system further comprises a base and a support frame, wherein the support frame is of an L-shaped structure, the support frame is arranged above the base, an electric telescopic rod is fixedly connected between the support frame and the base, a warning lamp is fixedly arranged on one side of the support frame, a display screen for displaying warning words, vehicle speed and distance is fixedly connected to the top surface of the support frame, a lamp strip is fixedly connected to the edge of the front surface of the display screen, a camera is fixedly connected to the bottom surface of the support frame, and the shooting module is arranged in the camera.
As a preferable technical scheme of the invention, the other side of the support frame is fixedly connected with a distance measuring probe, the distance measuring module is arranged in the distance measuring probe, the top surface of the other side of the support frame is fixedly connected with a speed measuring probe, and the speed measuring module is arranged in the speed measuring probe.
As a preferable technical scheme of the invention, a limit sleeve is arranged on the peripheral sliding sleeve of the support frame, and a reinforcing column is fixedly connected between the limit sleeve and the base.
As a preferable technical scheme of the invention, one side of the base is fixedly connected with a connecting plate, and the connecting plate is connected with a positioning bolt in a threaded manner.
As a preferable technical scheme of the invention, the bottom surface of the base is fixedly connected with a plurality of groups of brake wheels.
Compared with the prior art, the invention has the following beneficial effects:
through the setting of alarm table ring, when having non-construction vehicle to travel towards the construction region, can in time remind constructor to escape the scene through vibration warning module to prevent that there is non-construction vehicle to drive into the construction scene and cause the damage to constructor, and have dual constructor's of reminding function, very big promotion constructor's safety.
Drawings
FIG. 1 is a schematic diagram of a monitoring device according to the present invention;
FIG. 2 is a schematic diagram of the ring structure of the alarm watch of the invention;
FIG. 3 is a flow chart of the early warning and monitoring method of the present invention;
FIG. 4 is a flow chart of the communication connection between the analysis module and the central monitoring center.
Wherein: 1. a base; 11. a brake wheel; 12. a connecting plate; 121. positioning bolts; 13. a reinforcing column; 131. a limit sleeve; 14. an electric telescopic rod; 2. a support frame; 22. a warning light; 23. a display screen; 231. a light strip; 24. a speed measuring probe; 25. a ranging probe; 26. a camera; 3. an alarm watch ring.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained will become readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
Example 1
Referring to fig. 1, 2 and 3, the invention provides an early warning monitoring system for highway construction, which comprises a central monitoring center, wherein the central monitoring center is in communication connection with a shooting module, a speed measuring module, a distance measuring module and an alarm unit;
the shooting module is used for shooting the environment around the monitoring construction in real time and displaying the shot video picture on a display screen of the central monitoring center in real time;
the speed measuring module and the distance measuring module are electrically connected with the display module;
the speed measuring module is used for detecting the real-time speed of a vehicle travelling towards the construction area in real time;
the distance measuring module is used for detecting the distance between a vehicle travelling towards a construction area and a construction site;
the display module is used for displaying warning words and displaying the speed of the vehicle and the distance between the vehicle and the construction site;
the speed measuring module and the distance measuring module are in communication connection with the alarm unit, the alarm unit comprises an alarm meter ring 3 worn on the wrist of a constructor, and a vibration alarm module is arranged in the alarm meter ring 3 and close to the wrist.
In the scheme, be provided with the display screen that the real-time display shot the module in the central monitoring center, the staff can real-time observation is shot the video on the display screen, when the vehicle is gone towards the construction region, and after having entered the regional scope of predetermineeing, the staff can directly produce vibrations through vibration warning module, in order to warn constructor in time to escape the scene, guarantee constructor's life safety, when having the vehicle to go towards the construction region simultaneously, can carry out real-time monitoring to the state of vehicle through speed measuring module and range finding module, the distance between vehicle and construction site reaches the distance of predetermineeing after the speed is still faster, can produce vibration warning constructor and escape through vibration warning module this moment, carry out dual protection to constructor, effectually guarantee constructor's safety, in order to prevent that there is the non-construction vehicle to drive into the construction site to cause the damage, simultaneously can also be through display module to the vehicle that drives towards the construction site and early warning, in order to prevent there are non-construction person and non-construction vehicle to drive into the construction site, very big promotion constructor's safety.
The speed measuring module, the distance measuring module and the alarm unit are in communication connection with each other, and the processing unit comprises a processing module and an analysis module;
the processing module is used for processing the information detected by the speed measuring module and the distance measuring module and sending the processed result to the analysis module;
the analysis module is used for analyzing and judging the processing result of the processing module and sending the analysis and judgment result to the alarm unit.
Through the setting of processing unit, be convenient for handle and analysis to the data that speed measuring module and range finding module detected to send the result after the analysis to alarm unit, in the result after the analysis is that the vehicle can drive into the job site, then can produce the vibration through vibration alarm module, in order to warn constructor and escape the scene, guarantee constructor's safety, in order to prevent by the vehicle collision.
The alarm unit also comprises a voice call module and a voice broadcast module;
the voice call module is used for broadcasting the result analyzed by the analysis module;
the voice broadcasting module is used for broadcasting a warning sign to remind the front of the vehicle to be a construction site.
The voice call module is arranged in the alarm meter ring 3.
The voice communication module is convenient for broadcasting the escape information, so that constructors can escape from the site in time, and the safety is improved; and the voice broadcasting module can broadcast the warning language to promote the driver in the vehicle to be the construction area around, avoid the drive-in of vehicle, let the driver stop in advance.
The early warning monitoring system further comprises a base 1 and a support frame 2, the support frame 2 is of an L-shaped structure, the support frame 2 is arranged above the base 1, an electric telescopic rod 14 is fixedly connected between the support frame 2 and the base 1, a warning lamp 22 is fixedly arranged on one side of the support frame 2, a display screen 23 for displaying warning words, vehicle speed and distance is fixedly connected to the top surface of the support frame 2, a lamp band 231 is fixedly connected to the front edge of the display screen 23, a camera 26 is fixedly connected to the bottom surface of the support frame 2, a shooting module is arranged in the camera 26, and a voice broadcasting module is arranged on the support frame 2.
The distance measuring probe 25 is fixedly connected to the other side of the support frame 2, the distance measuring module is arranged in the distance measuring probe 25, the speed measuring probe 24 is fixedly connected to the top surface of the other side of the support frame 2, and the speed measuring module is arranged in the speed measuring probe 24.
The periphery sliding sleeve of the support frame 2 is provided with a limit sleeve 131, and a reinforcing column 13 is fixedly connected between the limit sleeve 131 and the base 1.
A connecting plate 12 is fixedly connected to one side of the base 1, and a positioning bolt 121 is connected to the connecting plate 12 in a threaded manner.
The bottom surface of the base 1 is fixedly connected with a plurality of groups of brake wheels 11.
Through the arrangement of the display screen 23, the early warning information is conveniently displayed on the display screen 23, so that a driver on a vehicle can conveniently watch the early warning information, and the driver can be prevented from driving the vehicle into a construction site; through the setting of lamp area 231 and warning light 22, can effectually instruct the driver the place ahead be the job site night to prevent that the vehicle from driving into the job site, can remind the driver through information and the voice broadcast module that shows on the display screen 23 daytime, promote the security.
Example 2
Referring to fig. 3, other parts of the present embodiment are the same as those of embodiment 1, except that the analysis module is communicatively connected to the central monitoring center.
The central monitoring center is in communication with the analysis module.
Through the communication connection of central monitoring center and analysis module, analysis module can be with the direct transmission of analysis judgement result to central monitoring center to the staff judges whether will escape on-the-spot information transfer for constructor, and the staff can initiatively close the alarming function of vibration warning module and voice call module, in order to prevent that the system from appearing erroneous judgement, also can avoid the staff to appear because of erroneous judgement will escape information transfer for constructor, promotes work efficiency.
Working principle:
firstly, a constructor wears an alarm meter ring 3 on a wrist, then pushes a support frame 2 to move a base 1 to a required position, positions the base by using a brake wheel 11, strengthens the stability of fixation by using a positioning bolt 121, and then adjusts the height of the support frame 2 by opening an electric telescopic rod 14; at this time, the camera 26 can be used for shooting vehicles on the highway, and the shot videos are shared on a display screen of a central monitoring center in real time, so that workers can watch the videos, when no vehicle runs towards a construction site, the vehicles continue to monitor, when the vehicle runs towards the construction site, the speed measuring probe 24 and the ranging probe 25 can be used for monitoring the vehicles in real time under the action of the speed measuring module and the ranging module, the speed and the distance between the vehicles and the construction site can be monitored in real time, warning words constructed in front can be displayed on the display screen 23, warning voices are broadcast through the voice broadcasting module, meanwhile, the warning lamp 22 is lightened to promote the front of the workers to be the construction site, the drivers can conveniently reduce the vehicle speed, if the vehicle speed is still faster, the processing module processes information monitored by the speed measuring module and the ranging module, sends the result to the analysis module, then the analyzed result of running into the vehicles is broadcast through the voice communication module, and the vibration warning module is sent out to warn the workers to quickly escape from the construction site, and the safety of the workers is guaranteed; meanwhile, workers can judge whether the vehicle runs into a construction site or not through observation, and the workers can be warned through the vibration warning module and the voice communication module actively. And the analysis module can also directly send the result after the analysis to central monitoring center department to the staff of being convenient for judges the state of vehicle, the staff of being convenient for in time notifies constructor, carries out dual protection to constructor, the effectual security that promotes constructor.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a highway construction is with early warning monitored control system, includes central monitoring center, its characterized in that: the central monitoring center is in communication connection with a shooting module, a speed measuring module, a distance measuring module and an alarm unit;
the shooting module is used for shooting the environment around the monitoring construction in real time and displaying the shot video picture on a display screen of the central monitoring center in real time;
the speed measuring module and the distance measuring module are electrically connected with a display module;
the speed measuring module is used for detecting the real-time speed of a vehicle travelling towards a construction area in real time;
the distance measuring module is used for detecting the distance between a vehicle travelling towards a construction area and a construction site;
the display module is used for displaying warning words and displaying the speed of the vehicle and the distance between the vehicle and the construction site;
the speed measuring module and the distance measuring module are in communication connection with the alarm unit, the alarm unit comprises an alarm meter ring (3) worn on the wrist of a constructor, and a vibration warning module is arranged in the alarm meter ring (3) close to the wrist.
2. The early warning and monitoring system for highway construction according to claim 1, wherein: the speed measuring module, the distance measuring module and the alarm unit are in communication connection with each other, and the processing unit comprises a processing module and an analysis module;
the processing module is used for processing the information detected by the speed measuring module and the distance measuring module and sending the processed result to the analysis module;
the analysis module is used for analyzing and judging the processing result of the processing module and sending the analysis and judgment result to the alarm unit.
3. The early warning and monitoring system for highway construction according to claim 2, wherein: the central monitoring center is in communication connection with the analysis module.
4. The early warning and monitoring system for highway construction according to claim 2, wherein: the alarm unit also comprises a voice call module and a voice broadcast module;
the voice call module is used for broadcasting the analysis result of the analysis module;
the voice broadcasting module is used for broadcasting a warning sign to remind that the front of the vehicle is a construction site.
5. The early warning and monitoring system for highway construction according to claim 4, wherein: the voice call module is arranged in the alarm meter ring (3).
6. The early warning and monitoring system for highway construction according to claim 1, wherein: still include base (1) and support frame (2), support frame (2) are L type structure, support frame (2) set up in base (1) top, fixedly connected with electric telescopic handle (14) between support frame (2) and base (1), support frame (2) one side is fixed to be provided with warning light (22), support frame (2) top surface fixedly connected with shows warning sign, speed of a motor vehicle and display screen (23) of distance, display screen (23) positive edge fixedly connected with lamp area (231), support frame (2) bottom surface fixedly connected with camera (26), the shooting module sets up in camera (26).
7. The early warning and monitoring system for highway construction according to claim 6, wherein: the novel speed measuring device is characterized in that a distance measuring probe (25) is fixedly connected to the other side of the supporting frame (2), the distance measuring module is arranged in the distance measuring probe (25), a speed measuring probe (24) is fixedly connected to the top surface of the other side of the supporting frame (2), and the speed measuring module is arranged in the speed measuring probe (24).
8. The early warning and monitoring system for highway construction according to claim 6, wherein: the periphery sliding sleeve of the support frame (2) is provided with a limit sleeve (131), and a reinforcing column (13) is fixedly connected between the limit sleeve (131) and the base (1).
9. The early warning and monitoring system for highway construction according to claim 6, wherein: one side of the base (1) is fixedly connected with a connecting plate (12), and the connecting plate (12) is connected with a positioning bolt (121) in a threaded manner.
10. The early warning and monitoring system for highway construction according to claim 6, wherein: the bottom surface of the base (1) is fixedly connected with a plurality of groups of brake wheels (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310361369.4A CN116645778A (en) | 2023-04-07 | 2023-04-07 | Early warning monitoring system for highway construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310361369.4A CN116645778A (en) | 2023-04-07 | 2023-04-07 | Early warning monitoring system for highway construction |
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| CN116645778A true CN116645778A (en) | 2023-08-25 |
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| CN202310361369.4A Pending CN116645778A (en) | 2023-04-07 | 2023-04-07 | Early warning monitoring system for highway construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117904997A (en) * | 2024-03-20 | 2024-04-19 | 山西申欧信息工程有限公司 | Intelligent early warning device with protection function |
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| CN112712244A (en) * | 2020-12-24 | 2021-04-27 | 内蒙古公路交通投资发展有限公司 | Highway construction early warning method, device, system, electronic equipment and medium |
| CN113192339A (en) * | 2021-02-01 | 2021-07-30 | 深圳市沛元科技有限公司 | Road operation safety protection warning system |
| CN115345412A (en) * | 2021-05-12 | 2022-11-15 | 交通运输部公路科学研究所 | Risk control system and method for road operation area |
| CN113808421A (en) * | 2021-09-23 | 2021-12-17 | 夏晓迪 | Early warning monitoring device is used in road traffic engineering construction |
| CN216848988U (en) * | 2021-12-19 | 2022-06-28 | 钟迪 | Emergency traffic light for intelligent transportation |
| CN217157436U (en) * | 2022-03-03 | 2022-08-09 | 江西方兴科技股份有限公司 | Construction area safety operation monitoring system |
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| CN117904997A (en) * | 2024-03-20 | 2024-04-19 | 山西申欧信息工程有限公司 | Intelligent early warning device with protection function |
| CN117904997B (en) * | 2024-03-20 | 2024-06-07 | 山西申欧信息工程有限公司 | Intelligent early warning device with protection function |
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Application publication date: 20230825 |