Traffic safety warning system and mechanism thereof

Abstract

The invention relates to the technical field of hoisting machinery, and particularly discloses a driving safety warning system which comprises a signal input unit, a hierarchical control unit in electric signal connection with the signal input unit, a PLC in electric signal connection with the hierarchical control unit and an irradiation unit in electric signal connection with the PLC. The signal input unit comprises a speed sensor and a starting signal module, and the grading control unit is responsible for carrying out danger grading according to signals collected by the signal input unit. According to the driving safety warning system provided by the invention, the driving dynamic state is monitored in real time through the hierarchical control system, irradiation warning is performed according to different colors according to the dynamic state, and a multi-direction and multi-grade driving dangerous area visual warning system is constructed through red-green double-color light area hierarchical projection and dynamic range control; the problems of simplification and staticization of a traditional warning mode are solved; in addition, when materials similar to square pipes are suspended, position deviation caused by shaking of the materials is warned, and the positions are corrected in time.

Description

Technical Field

[0001] This invention relates to the field of lifting machinery technology, specifically to a traffic safety warning system and its mechanism. Background Technology

[0002] Overhead cranes, as core material handling equipment in industrial production, are widely used in workshops and warehouses in metallurgical steelmaking. In the metallurgical steelmaking field, overhead cranes are needed to transport materials such as metal pipes. However, during the operation of overhead cranes, the area below and around them is a high-risk area due to risks such as falling heavy objects and collisions caused by moving equipment.

[0003] Traditional safety warning methods mainly rely on monochromatic lights (such as red spotlights) or fixed warning signs, but these have problems such as limited warning range, unclear distinction of hazard levels, and multiple blind spots, making it difficult to meet the safety needs of complex working conditions. With the increase in vehicle operating speed and automation, higher requirements are placed on dynamic and accurate visual warnings of hazardous areas. Summary of the Invention

[0004] The purpose of this invention is to provide a driving safety warning system to address the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A driving safety warning system includes a signal input unit, a hierarchical control unit electrically connected to the signal input unit, a PLC electrically connected to the hierarchical control unit, and an illumination unit electrically connected to the PLC. The signal input unit includes a speed sensor and a start signal module. The hierarchical control unit is responsible for classifying the hazard based on the signals collected by the signal input unit. The illumination unit includes a first-level hazard illumination lamp group and a second-level hazard illumination lamp group.

[0007] Furthermore, the hierarchical control unit includes a start / stop processing module, a forward processing module, and a backward processing module. The start / stop processing module is responsible for keeping the first-level illumination lamp group in a flashing state.

[0008] Furthermore, the primary hazard illumination lamp group is a red lamp group, the secondary hazard illumination lamp group is a green lamp group, and the illumination area of ​​the primary hazard illumination lamp group is defined by the following formula:

[0009] ;in, The length of the journey, For the width of the vehicle, The length of the irradiated area, The width of the irradiated area.

[0010] Furthermore, the forward processing module is electrically connected to a first calculation module, and the formula for the irradiation area corresponding to the first calculation module is as follows:

[0011] ,in The set value is 0.5 seconds. The vehicle speed detected by the speed sensor. For the length of the irradiation, The width of the irradiated area;

[0012] The backward processing module is electrically connected to a second calculation module, and the formula for the irradiation area corresponding to the second calculation module is as follows:

[0013] Where t1 is the set value of 1 second. The length of the irradiated area, The width of the irradiated area.

[0014] A driving safety warning mechanism for use in the aforementioned driving safety warning system includes a driving body, a traction component on the driving body, the traction component including a traction rope and a movable pulley assembly, a suspension component for suspending materials fixedly connected to the end of the traction rope, the suspension component including a first suspension plate and a pair of second suspension plates, and an adjustment component on the first and second suspension plates, the adjustment component including a plurality of drive rollers;

[0015] The traction component is equipped with an alternating unlocking component. The first suspension plate and the second suspension plate are slidably connected. The suspension component has three states: the first state is that neither the first suspension plate nor the second suspension plate is unlocked and is in a supporting posture; the second state is that the first suspension plate is unlocked and adjusts its own posture by relying on the drive roller, while the second suspension plate is in a supporting posture; the third state is that the first suspension plate is in a supporting posture, and the second suspension plate is in an unlocked posture and adjusts its own posture by relying on the drive roller.

[0016] Furthermore, the adjustment component includes a drive motor, the output end of which is fitted with a drive chain, a drive gear ring is fixedly fitted on the drive roller, the drive gear ring is meshed with the drive chain, an angle sensor is provided on the drive roller, the angle sensor is electrically connected to a start switch module, the start switch module is electrically connected to the drive motor, and the angle sensor is responsible for driving the drive motor to start when it detects a reverse rotation of a set angle.

[0017] Furthermore, the alternating unlocking component includes a working box, in which an adjusting roller is rotatably arranged. A first lifting plate is provided at the end of the first suspension plate, and a second lifting plate is provided at the end of the second suspension plate. A first groove and a pair of second grooves are provided on the adjusting roller. During the rotation of the adjusting roller, the first lifting plate and the second lifting plate move downward alternately.

[0018] Furthermore, the angle sensor is also electrically connected to the primary illumination lamp group, and is responsible for controlling the primary illumination lamp group to enter the flashing mode when a set angle is detected.

[0019] The driving safety warning system provided by the present invention has the following beneficial effects in the above technical solution:

[0020] Through a hierarchical control system, the vehicle's dynamics are monitored in real time, and different colors are used to illuminate and warn based on the dynamics. By using red-green dual-color light to differentiate the hierarchical projection and dynamic range control, a multi-directional, multi-level visual warning system for dangerous driving areas is constructed, solving the problems of the single and static nature of traditional warning methods. In addition, this case also warns of positional deviations caused by the swaying of suspended square tube-like materials and corrects their position in a timely manner. By alternately lifting the square tube, the suspended components can easily adjust their own position, thereby reducing the risk factor.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0022] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a signal transmission diagram of a driving safety warning system provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the traction component and the alternating unlocking component provided in an embodiment of the present invention;

[0027] Figure 4This is a schematic diagram of the internal structure of the alternating unlocking component provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the adjusting roller structure provided in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the first suspension plate moving according to an embodiment of the present invention;

[0030] Figure 7 This is a signal transmission block diagram provided for an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Traction component; 11. Traction rope; 12. Movable pulley assembly; 2. Suspension component; 21. First suspension plate; 22. Second suspension plate; 3. Adjustment component; 31. Drive roller; 32. Touch switch; 4. Alternating unlocking component; 41. Working box; 42. Adjustment roller; 43. First lifting plate; 44. Second lifting plate; 45. First groove; 46. Second groove; 47. Gear motor; 48. Moving plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0034] Please refer to 1-9. A driving safety warning system includes a signal input unit, a hierarchical control unit electrically connected to the signal input unit, a PLC electrically connected to the hierarchical control unit, and an illumination unit electrically connected to the PLC. The signal input unit includes a speed sensor and a start signal module. The hierarchical control unit is responsible for classifying the hazard level according to the signal collected by the signal input unit. The illumination unit includes a first-level hazard illumination lamp group and a second-level hazard illumination lamp group.

[0035] In a further embodiment of the present invention, the hierarchical control unit includes a start-stop processing module, a forward processing module, and a backward processing module, wherein the start-stop processing module is responsible for keeping the first-level illumination lamp group in a flashing state.

[0036] The two output terminals of the speed sensor are connected to the forward processing module and the backward processing module respectively, and the output terminal of the start signal module is connected to the start / stop processing module.

[0037] In a further embodiment of the present invention, the primary hazard illumination light group is a red light group, and the secondary hazard illumination light group is a green light group. The red light group and the green light group are arranged directly below or to the side of the vehicle body. The illumination area of ​​the primary hazard illumination light group is shaped as follows:

[0038] ;in, The length of the journey, For the width of the vehicle, The length of the irradiated area, The width of the irradiated area.

[0039] In a further embodiment of the present invention, the forward processing module is electrically connected to a first calculation module, and the irradiation area formula corresponding to the first calculation module is as follows:

[0040] ,in The set value is 0.5 seconds. The vehicle speed detected by the speed sensor. For the length of the irradiation, The width of the irradiated area;

[0041] The backward processing module is electrically connected to a second calculation module, and the formula for the irradiation area corresponding to the second calculation module is as follows:

[0042] Where t1 is the set value of 1 second. The length of the irradiated area, The width of the irradiated area.

[0043] The term "carriage" in this case refers to the trolley assembly, which includes the trolley frame, lifting mechanism, and running mechanism (components that drive the trolley to move laterally).

[0044] Specifically, when the car assembly starts, the red lights begin to flash, displaying the area as follows: When staff see the area, they will issue a warning and signal the person to leave the area.

[0045] When the car assembly moves forward, the area illuminated by the red light cluster is... The area illuminated by the green light group is Furthermore, both the red and green light clusters move together with the trolley assembly. The set value is 0.5 seconds.

[0046] When the car assembly reverses, the area illuminated by the red light cluster is... The area illuminated by the green light group is t1 gives a set value of 1 second.

[0047] The above applies to the speed of the trolley assembly ≤ 2m / s.

[0048] When the speed of the trolley assembly is ≤2m / s, the irradiation area can be widened accordingly.

[0049] Optionally, when the car brakes suddenly, the red lights switch to a red flashing mode, the width of the red no-go zone is expanded to W+1 meters, and the green warning zone is expanded to 1.5 times the standard value;

[0050] After a continuous warning for 30 seconds, if the vehicle resumes operation, it will return to normal mode.

[0051] If the vehicle is parked for more than 5 minutes, it will automatically enter energy-saving mode (spotlights will be turned off, and only the control system will remain in standby mode).

[0052] This case also involves a driving safety warning mechanism for the aforementioned driving safety warning system, including a driving body, on which a traction component 1 is provided, the traction component 1 including a traction rope 11 and a movable pulley assembly 12, the bottom of the movable pulley assembly 12 being rotatably connected to a suspension component 2 for suspending materials, the suspension component 2 including a first suspension plate 21 and a pair of second suspension plates 22, the first suspension plate 21 and the second suspension plate 22 being provided with an adjustment component 3, the adjustment component 3 including a plurality of drive rollers 31;

[0053] The traction component 1 is provided with an alternating unlocking component 4. The first suspension plate 21 and the second suspension plate 22 are slidably connected. The suspension component 2 has three states: the first state is that neither the first suspension plate 21 nor the second suspension plate 22 is unlocked and is in a supporting posture; the second state is that the first suspension plate 21 is unlocked and adjusts its own posture by relying on the drive roller 31, while the second suspension plate 22 is in a supporting posture; the third state is that the first suspension plate 21 is in a supporting posture, and the second suspension plate 22 is in an unlocked posture and adjusts its own posture by relying on the drive roller 31.

[0054] The material to be transported in this case is a square tube (weighing 75-200 kg). In the existing technology, the suspension of square tubes is generally achieved by using hook locks. When the hook lock is used to suspend the square tube up and down, the square tube may sometimes sway left and right due to the inconsistent speed of the two suspension ropes. This causes the hook lock to shift in position relative to the square tube, which not only causes the center of gravity to shift, but may even pose a risk of falling.

[0055] Initially, the first suspension plate 21 and the second suspension plate 22 are placed on the inner top surface of the square tube, and then the rope winding motor is turned on at the same time. As the rope winding motor is turned on, the square tube slowly rises.

[0056] Specifically, both the first suspension plate 21 and the second suspension plate 22 are provided with anti-slip textures, and multiple circumferentially distributed friction strips are fixedly connected to the drive roller 31, which can effectively prevent the square tube from sliding. The friction strips are made of elastic material. Initially, they are in contact with the inner wall of the square tube and are in a squeezing posture. When moving downwards, the friction between the friction strips and the square tube can drive the first suspension plate 21 and the second suspension plate 22 to move.

[0057] In a further embodiment of the present invention, the adjustment component 3 includes a drive motor, the output end of which is sleeved with a drive chain, a drive gear ring is fixedly sleeved on the drive roller 31, the drive gear ring is meshed with the drive chain, an angle sensor is provided on the drive roller 31, the angle sensor is electrically connected to a start switch module, the start switch module is electrically connected to the drive motor, and the angle sensor is responsible for driving the drive motor to start when it detects a reverse rotation of a set angle.

[0058] The angle sensor is electrically connected to the controller, and the controller is electrically connected to the drive motor.

[0059] Initially, the two sets of suspension traction ropes 11 are in a vertical state. When the square tube slides with the suspension component 2, the angle of the traction ropes 11 tilts.

[0060] When swaying occurs, the square tube and the suspension component 2 are misaligned. At this time, the drive roller 31 rotates in the opposite direction due to friction. After the angle sensor obtains the rotation signal, it turns on the drive motor. The drive motor drives the drive roller 31 to rotate in the forward direction, helping the suspension component 2 to return to the correct position.

[0061] In a further embodiment of the present invention, the alternating unlocking component 4 includes a working box 41, an adjusting roller 42 is rotatably disposed inside the working box 41, a first lifting plate 43 is disposed at the end of the first suspension plate 21, a second lifting plate 44 is disposed at the end of the second suspension plate 22, a first groove 45 and a pair of second grooves 46 are provided on the adjusting roller 42, and during the rotation of the adjusting roller 42, the first lifting plate 43 and the second lifting plate 44 move downward alternately.

[0062] Specifically, the edges of the first groove 45 and the pair of second grooves 46 are chamfered.

[0063] Optionally, rollers are rotatably provided on the sides of the first groove 45 and a pair of second grooves 46. When the adjusting roller rotates, the rollers can rotate with the first lifting plate 43 and the second lifting plate 44, converting sliding friction into rolling friction and reducing the frictional force of rotation.

[0064] A reduction motor 47 is fixedly connected to the end of the adjusting roller 42. The reduction motor 47 drives the adjusting roller 42 to rotate. Taking the right adjusting roller 42 as an example, the reduction motor 47 will drive the adjusting roller 42 to rotate clockwise.

[0065] Specifically, this case is equipped with three drive motors, each of which drives the corresponding set of drive rollers 31 to rotate, and is started and stopped by the controller.

[0066] Specifically, a touch switch 32 is also provided on the side end of the first suspension plate 21 and the second suspension plate 22, and the touch switch 32 is electrically connected to the corresponding drive motor.

[0067] Specifically, the end of the second suspension plate 22 is fixedly connected to the second lifting plate 44. The inner wall of the work box 41 is provided with a vertical sliding groove. The second lifting plate 44 is slidably connected to the inner wall of the work box 41 through the sliding groove. A movable plate 48 is provided between the first suspension plate 21 and the first lifting plate 43. The movable plate 48 is fixedly connected to the first suspension plate 21 and slidably connected to the inside of the first lifting plate 43. The side ends of the second lifting plate 44 are provided with guide grooves. The guide grooves are U-shaped, that is, a horizontal sliding groove is connected between the two vertical sliding grooves, so that the first lifting plate 43 descends and then moves horizontally relative to the second lifting plate 44, and finally rises.

[0068] The system is set to first activate the drive motor corresponding to the first suspension plate 21. When the controller detects the angle signal from the angle sensor, the reduction motor 47 first rotates the drive roller 31 120 degrees. At this time, the first groove 45 is rotated upwards, causing the first suspension plate 21 to sink a short distance (0.5-2 cm, which is within the thickness range of the friction strip). Then, the drive motor corresponding to the first suspension plate 21 is activated, causing the first suspension plate 21 to begin crawling into the steering tube via its own drive roller 31 until the steering tube touches the touch switch 32 corresponding to the first suspension plate 21. Then, the first suspension plate 21... The corresponding drive motor is turned off, while the geared motor 47 continues to rotate the drive roller 31 by 120 degrees. At this time, a pair of second grooves 46 are rotated to the top, causing the first suspension plate 21 to rise and the second suspension plate 22 to sink. Then the drive motor corresponding to the second suspension plate 22 is turned on, causing the second suspension plate 22 to move into the direction tube along with the whole structure until the touch switch 32 of the second suspension plate 22 is pressed. At this time, the drive motor corresponding to the second suspension plate 22 is turned off. Finally, the geared motor 47 rotates the drive roller 31 by 120 degrees, lifting both the first suspension plate 21 and the second suspension plate 22.

[0069] In a further embodiment of the present invention, the angle sensor is also electrically connected to the primary illumination lamp group and is responsible for controlling the primary illumination lamp group to enter the flashing mode when a set angle is detected.

[0070] When a tilt is detected in the square tube, the red light can be made to flash continuously until the correction is completed, at which point normal illumination can be resumed.

[0071] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A driving safety warning system, characterized in that: It includes a signal input unit, a graded control unit electrically connected to the signal input unit, a PLC electrically connected to the graded control unit, and an irradiation unit electrically connected to the PLC. The signal input unit includes a speed sensor and a start signal module. The graded control unit is responsible for classifying the hazard based on the signals collected by the signal input unit. The irradiation unit includes a first-level hazard irradiation lamp group and a second-level hazard irradiation lamp group.

2. The driving safety warning system according to claim 1, characterized in that, The hierarchical control unit includes a start / stop processing module, a forward processing module, and a backward processing module. The start / stop processing module is responsible for keeping the first-level illumination lamp group in a flashing state.

3. The driving safety warning system according to claim 2, characterized in that, The first-level hazard illumination lamp group is a red lamp group, and the second-level hazard illumination lamp group is a green lamp group. The formula for the illumination area of ​​the first-level hazard illumination lamp group is as follows: ;in, The length of the journey, For the width of the vehicle, The length of the irradiated area, The width of the irradiated area.

4. The driving safety warning system according to claim 3, characterized in that, The forward processing module is electrically connected to the first calculation module, and the formula for the irradiation area corresponding to the first calculation module is as follows: ,in The set value is 0.5 seconds. The vehicle speed detected by the speed sensor. For the length of the irradiation, The width of the irradiated area; The backward processing module is electrically connected to a second calculation module, and the formula for the irradiation area corresponding to the second calculation module is as follows: Where t1 is the set value of 1 second. The length of the irradiated area, The width of the irradiated area.

5. A driving safety warning mechanism, used in the driving safety warning system according to any one of claims 1-4, characterized in that, The device includes a crane body, on which a traction component is provided. The traction component includes a traction rope and a movable pulley assembly. The bottom of the movable pulley assembly is rotatably connected to a suspension component for suspending materials. The suspension component includes a first suspension plate and a pair of second suspension plates. Adjustment components are provided on the first and second suspension plates. The adjustment components include multiple drive rollers. The traction component is equipped with an alternating unlocking component. The first suspension plate and the second suspension plate are slidably connected. The suspension component has three states: the first state is that neither the first suspension plate nor the second suspension plate is unlocked and is in a supporting posture; the second state is that the first suspension plate is unlocked and adjusts its own posture by relying on the drive roller, while the second suspension plate is in a supporting posture; the third state is that the first suspension plate is in a supporting posture, and the second suspension plate is in an unlocked posture and adjusts its own posture by relying on the drive roller.

6. The driving safety warning system according to claim 5, characterized in that, The adjustment component includes a drive motor, the output end of which is fitted with a drive chain. A drive gear ring is fixedly fitted on the drive roller and meshes with the drive chain. An angle sensor is provided on the drive roller and electrically connected to a start switch module. The start switch module is electrically connected to the drive motor. The angle sensor is responsible for detecting when the set angle is rotated in the opposite direction, thereby driving the drive motor to start.

7. The driving safety warning system according to claim 6, characterized in that, The alternating unlocking component includes a working box, in which an adjusting roller is rotatably arranged. A first lifting plate is provided at the end of the first suspension plate, and a second lifting plate is provided at the end of the second suspension plate. A first groove and a pair of second grooves are provided on the adjusting roller. During the rotation of the adjusting roller, the first lifting plate and the second lifting plate move downward alternately.

8. The driving safety warning system according to claim 6, characterized in that, The angle sensor is also connected to the primary illumination lamp group via electrical signal, and is responsible for controlling the primary illumination lamp group to enter flashing mode when a set angle is detected.

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