Intelligent safety signal control system and control method

Abstract

The invention discloses an intelligent safety signal control system and a control method, and relates to the technical field of safety alarm equipment, the intelligent safety signal control system comprises a cross beam, a mounting assembly is mounted on the inner side of the cross beam, and a power assembly and a forklift and pedestrian recognition mechanism are sequentially arranged in the mounting assembly from top to bottom; a transposition type light beam alarm mechanism is arranged at the bottom end of the forklift and pedestrian recognition mechanism. The power assembly drives the forklift and pedestrian recognition mechanism and the transposition type light beam alarm mechanism to move downwards synchronously till the transposition type light beam alarm mechanism arrives at an alarm station. The position of the transposition type light beam alarm mechanism is lowered firstly, then the transposition type light beam alarm mechanism is rotated, laser beams used for warning continuously sweep workers, a better warning effect is achieved, other workers outside an easy-to-collide area cannot be affected, and the safety of the workers is improved. In addition, the forklift and the pedestrian recognition mechanism can be overhauled more easily after arriving at a relatively low station easy to overhaul.

Description

Technical Field

[0001] The present invention relates to the technical field of safety alarm equipment, and in particular to an intelligent safety signal control system and a control method. Background Art

[0002] In the storage area of ​​the tobacco logistics distribution center, due to the large throughput of tobacco products, workers often use manual forklifts or motorized forklifts to transport tobacco products. In order to facilitate the movement of forklifts, specific pedestrian passages are generally not set up in the storage area of ​​the distribution center. Therefore, forklifts and walking workers usually choose the nearest straight line. As a result, during the transportation of tobacco products, it is very easy for forklifts to be blocked by other workers' random walking, which not only affects the forklift's handling efficiency, but also easily leads to safety accidents.

[0003] In view of the above situation, technicians in this field have come up with the idea of ​​using RFID technology to monitor the movement status of forklifts and pedestrians in the storage area in real time, so that when there is a risk of collision between the forklift and the pedestrian, an audio and visual alarm can be issued in time to remind the pedestrian to stop moving. This can not only ensure the handling efficiency of the forklift, but also reduce the probability of safety accidents.

[0004] However, after actual application by technicians in this field, it was found that the above method still has some shortcomings. The most obvious one is that when using sound and light alarms to remind pedestrians, since the sound and light alarms are usually installed on the ceiling of the storage area and pedestrians pay less attention to high places while walking, the light alarm often does not work. Although the sound alarm can play a certain reminder role, when the alarm sound is small, the reminder effect is poor, and when the alarm sound is loud, it will also affect pedestrians walking normally in other surrounding areas.

[0005] Therefore, it is necessary to invent an intelligent safety signal control system and a control method to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an intelligent safety signal control system and a control method, which first lowers the position of a transposable light beam alarm mechanism, and then rotates the transposable light beam alarm mechanism, so that the laser beam used for warning continuously scans the staff, which has a better warning effect and will not affect other staff outside the prone collision area. In addition, the forklift and the pedestrian recognition mechanism can be more easily repaired after arriving at a relatively low and easy-to-maintain station, so as to solve the problem of using sound and light alarms to remind pedestrians in the above-mentioned background technology. Since the sound and light alarm is usually installed on the ceiling of the storage area, and pedestrians pay less attention to high places during walking, the light alarm often does not work. Although the sound alarm can play a certain reminder role, when the alarm sound is small, the reminder effect is poor, and when the alarm sound is loud, it will also affect pedestrians walking normally in other surrounding areas.

[0007] To achieve the above object, the present invention provides the following technical solutions: an intelligent safety signal control system, comprising a crossbeam, a mounting assembly is installed inside the crossbeam, a power assembly and a forklift and pedestrian recognition mechanism are arranged inside the mounting assembly from top to bottom, and a transposition type light beam alarm mechanism is arranged at the bottom of the forklift and pedestrian recognition mechanism;

[0008] The power component drives the forklift, the pedestrian recognition mechanism and the transposable light beam alarm mechanism to move downward synchronously until the transposable light beam alarm mechanism arrives at the alarm position. At this time, the forklift and the pedestrian recognition mechanism arrive at the easy maintenance position, and the transposable light beam alarm mechanism starts the alarm operation. Then the power component drives the transposable light beam alarm mechanism to make the transposable light beam alarm mechanism perform a rotation alarm operation.

[0009] Preferably, the mounting assembly comprises a mounting frame, a shielding plate, a guide slide and a first contact switch;

[0010] The mounting frame is fixed to the inner side of the crossbeam by bolts, two shielding plates are provided, and the two shielding plates are respectively fixed on the top of the front side and the top of the back side of the mounting frame, two guide slots are provided, and the two guide slots are respectively opened at the bottom of both sides of the mounting frame, and the first contact switch is fixedly nested at the inner bottom of the adjacent guide slots.

[0011] Preferably, the power assembly includes a fixing plate, a motor and a first screw;

[0012] The fixing plate is fixedly arranged on the inner top of the mounting frame, the motor is fixedly arranged on the top of the fixing plate, the first screw rod is penetrated through the bottom of the fixing plate and is rotationally connected to the fixing plate through a bearing, and the first screw rod is transmission-connected to the motor.

[0013] Preferably, the power assembly further comprises a lifting frame, a connecting pipe, a return spring and a second screw rod;

[0014] The lifting frame is sleeved on the top outer side of the first screw and is threadedly connected to the first screw, the connecting pipe is slidably penetrated in the vertical direction and is arranged at the bottom of the lifting frame and is slidably sleeved on the outside of the first screw, the return spring is sleeved on the outside of the first screw and is fixedly connected between the top end of the connecting pipe and the inner wall of the lifting frame, and the second screw is fixedly arranged on the front side of the bottom of the lifting frame.

[0015] Preferably, the forklift and pedestrian identification mechanism includes a U-shaped frame, a limit slider, a second contact switch and an equipment box;

[0016] The U-shaped frame is slidably sleeved on the outside of the lifting frame along the vertical direction and fixedly arranged at the bottom end of the connecting pipe. Two limit sliders are provided. The two limit sliders are respectively fixedly arranged on the top of both sides of the U-shaped frame and are respectively slidably arranged on the inner sides of two guide slide grooves along the vertical direction. The second contact switch is fixedly nested at the bottom of the adjacent limit slider. An RFID reader and a data transmission module are arranged inside the equipment box.

[0017] Preferably, the forklift and pedestrian identification mechanism further includes a first RFID tag and a second RFID tag, wherein the first RFID tag is arranged on the forklift, and the second RFID tag is arranged on the uniform of the staff member.

[0018] Preferably, the transposition type light beam alarm mechanism comprises a rotating column, a gear ring, a rotating seat and a warning laser light;

[0019] The rotating column is rotatably nested in the bottom of the equipment box through a bearing, the gear ring is fixedly sleeved in the middle of the outer side of the rotating column, the rotating seat is fixedly set at the bottom of the rotating column, and a plurality of warning laser lights are provided, and the plurality of warning laser lights are evenly fixed on the outer side of the rotating seat and are all tilted downward.

[0020] Preferably, the transposition type light beam alarm mechanism further comprises a gear and a threaded tube;

[0021] The gear is meshed with one side of the gear ring, the threaded tube is fixedly arranged on the inner side of the gear, the threaded tube passes through the equipment box and the bottom of the U-shaped frame and extends to the inner side of the U-shaped frame, the threaded tube is rotatably connected to the U-shaped frame through a bearing and is threadedly sleeved on the outer side of the bottom end of the second screw.

[0022] The present invention also discloses an intelligent safety signal control method, which specifically comprises the following steps:

[0023] S1, the RFID reader obtains the forklift position in real time through the first RFID tag on the forklift, and obtains the staff position in real time through the second RFID tag on the staff uniform, and the two types of position information are transmitted to the central processor through the data transmission module;

[0024] S2, the central processing unit determines the driving path of the forklift according to the continuous changes in the forklift position information, determines the walking path of the staff according to the continuous changes in the staff position information, and then determines the easy collision area according to the driving path data of the two;

[0025] S3. When the staff enters the collision-prone area, the motor drives the first screw to rotate continuously. When the first screw rotates, it drives the lifting frame connected to the screw thread to move downward continuously. When the lifting frame moves downward, it drives the second screw to move downward. At the same time, the reset spring drives the connecting pipe to move downward. When the connecting pipe moves downward, it drives the U-shaped frame to move downward. When the U-shaped frame moves downward, it drives the limit slider to move downward continuously inside the guide slot. At the same time, the transposition beam alarm mechanism is driven to move downward as a whole through the equipment box.

[0026] S4, when the limit slider moves to the bottom of the inner side of the guide slot, the second contact switch contacts the first contact switch under the drive of the limit slider, and at this time, multiple warning laser lights are powered on, and a laser beam for warning is emitted to the ground at the same time. At this time, due to the blocking of the limit slider by the guide slot, the limit slider cannot move down further, and the U-shaped frame and the equipment box that has reached the easy maintenance station cannot move down further either. Subsequently, as the lifting frame continues to move down, the lifting frame compresses the reset spring, and at the same time drives the second screw rod to descend inside the threaded tube;

[0027] S5. When the second screw rod descends, it drives the threaded tube connected to it to rotate continuously. When the threaded tube rotates, it drives the rotating column to rotate through the gear and the gear ring. The rotating column drives the multiple warning laser lights to rotate continuously through the rotating seat, so that the laser beam emitted by the warning laser light continuously sweeps over the staff, thereby reminding the staff;

[0028] S6. After the warning is completed, the motor drives the first screw to rotate in the reverse direction. After the first screw rotates, it drives the lifting frame to move up and reset. As the lifting frame continues to move up, the transposed light beam alarm mechanism and the forklift and pedestrian recognition mechanism are reset one after another. When the lifting frame is driven to reset, the motor is stopped.

[0029] Technical effects and advantages of the present invention:

[0030] The present invention is provided with an installation component, a forklift and pedestrian recognition mechanism and a transposable light beam alarm mechanism, so that after the power component drives the forklift and pedestrian recognition mechanism and the transposable light beam alarm mechanism to move downward synchronously, the transposable light beam alarm mechanism arrives at the alarm position, and the forklift and pedestrian recognition mechanism arrives at the easy maintenance position. At this time, because the forklift and pedestrian recognition mechanism completes contact with the installation component, the transposable light beam alarm mechanism starts the alarm operation, and then the power component drives the transposable light beam alarm mechanism, thereby causing the transposable light beam alarm mechanism to perform a rotation alarm operation. Compared with the same type of scheme in the prior art, the present invention first lowers the position of the transposable light beam alarm mechanism, and then causes the transposable light beam alarm mechanism to rotate, thereby causing the warning laser beam to continuously scan the staff, which has a better warning effect and will not affect other staff outside the easy collision area. In addition, the forklift and pedestrian recognition mechanism can be more easily maintained after arriving at the relatively low easy maintenance position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 It is a schematic diagram of the internal structure of the installation component of the present invention.

[0033] Figure 3 It is a schematic diagram of the installation component structure of the present invention.

[0034] Figure 4 It is a schematic diagram of the structure of the power assembly of the present invention.

[0035] Figure 5 It is a schematic diagram of the structure of the forklift and pedestrian recognition mechanism of the present invention.

[0036] Figure 6 It is a schematic diagram of the structure of the transposition type light beam alarm mechanism of the present invention.

[0037] In the figure: 1. crossbeam; 2. mounting assembly; 21. mounting frame; 22. shielding plate; 23. guide slide; 24. first contact switch; 3. power assembly; 31. fixing plate; 32. motor; 33. first screw; 34. lifting frame; 35. connecting pipe; 36. reset spring; 37. second screw; 4. forklift and pedestrian identification mechanism; 41. U-shaped frame; 42. limit slider; 43. second contact switch; 44. equipment box; 5. transposition type beam alarm mechanism; 51. rotating column; 52. gear ring; 53. rotating seat; 54. warning laser light; 55. gear; 56. threaded pipe. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] The present invention provides Figure 1-Figure 6 An intelligent safety signal control system shown in the figure comprises a crossbeam 1, a mounting assembly 2 is mounted inside the crossbeam 1, a power assembly 3 and a forklift and pedestrian recognition mechanism 4 are arranged inside the mounting assembly 2 in sequence from top to bottom, and a transposition beam alarm mechanism 5 is arranged at the bottom of the forklift and pedestrian recognition mechanism 4;

[0041] The power assembly 3 drives the forklift and pedestrian recognition mechanism 4 and the transposable light beam alarm mechanism 5 to move downward synchronously until the transposable light beam alarm mechanism 5 arrives at the alarm position. At this time, the forklift and pedestrian recognition mechanism 4 arrive at the easy maintenance position. In addition, the transposable light beam alarm mechanism 5 starts the alarm operation. Then the power assembly 3 drives the transposable light beam alarm mechanism 5 to make the transposable light beam alarm mechanism 5 perform a rotation alarm operation.

[0042] like Figure 3 As shown, the mounting assembly 2 includes a mounting frame 21, a baffle plate 22, a guide slot 23 and a first contact switch 24, wherein the mounting frame 21 is fixed to the inner side of the beam 1 by bolts, two baffle plates 22 are provided, and the two baffle plates 22 are respectively fixedly provided at the top of the front side and the top of the back side of the mounting frame 21, two guide slots 23 are provided, and the two guide slots 23 are respectively opened at the bottom of both sides of the mounting frame 21, and the first contact switch 24 is fixedly nested at the inner bottom of the adjacent guide slots 23.

[0043] By setting the above structure, the mounting frame 21 can be fixed to the inner side of the beam 1 by bolts to achieve the installation and fixation of the mounting frame 21, and the shielding plate 22 can protect the components inside the mounting frame 21 from the front and back of the mounting frame 21 respectively.

[0044] like Figure 4As shown, the power assembly 3 includes a fixed plate 31, a motor 32, a first screw 33, a lifting frame 34, a connecting pipe 35, a return spring 36 and a second screw 37, wherein the fixed plate 31 is fixedly arranged on the inner top of the mounting frame 21, the motor 32 is fixedly arranged on the top of the fixed plate 31, the first screw 33 is penetrated through the bottom of the fixed plate 31 and is rotatably connected to the fixed plate 31 through a bearing, the first screw 33 is transmission-connected to the motor 32, the lifting frame 34 is sleeved on the outer top of the first screw 33 and is threadedly connected to the first screw 33, the connecting pipe 35 is slidably penetrated through the bottom of the lifting frame 34 in the vertical direction and is slidably sleeved on the outer side of the first screw 33, the return spring 36 is sleeved on the outer side of the first screw 33 and is fixedly connected between the top of the connecting pipe 35 and the inner wall of the lifting frame 34, and the second screw 37 is fixedly arranged on the front side of the bottom of the lifting frame 34.

[0045] By setting the above structure, the motor 32 can drive the first screw 33 to rotate continuously. When the first screw 33 rotates, it drives the lifting frame 34 threadedly connected thereto to continuously move downward. When the lifting frame 34 moves downward, it drives the second screw 37 downward. At the same time, the connecting pipe 35 is driven downward by the reset spring 36. When the connecting pipe 35 moves downward, it drives the U-shaped frame 41 downward. When the U-shaped frame 41 cannot move downward further, the connecting pipe 35 also cannot move downward. At this time, the lifting frame 34 synchronously compresses the reset spring 36 when moving downward.

[0046] like Figure 5 As shown, the forklift and pedestrian identification mechanism 4 includes a U-shaped frame 41, a limit slider 42, a second contact switch 43 and an equipment box 44, wherein the U-shaped frame 41 is slidably sleeved along the vertical direction on the outside of the lifting frame 34 and fixedly arranged at the bottom end of the connecting pipe 35, and two limit sliders 42 are provided. The two limit sliders 42 are respectively fixedly arranged on the top of both sides of the U-shaped frame 41 and are respectively slidably arranged on the inner sides of two guide grooves 23 along the vertical direction. The second contact switch 43 is fixedly nested at the bottom of the adjacent limit slider 42, and an RFID reader and a data transmission module are arranged inside the equipment box 44.

[0047] By setting the above-mentioned structure, when the U-shaped frame 41 moves downward, the limit slider 42 is driven to continuously descend along the guide slot 23, so that the second contact switch 43 gradually contacts the first contact switch 24, and at the same time drives the equipment box 44 to approach the easy maintenance position. When the limit slider 42 moves to the bottom of the inner side of the guide slot 23, due to the obstruction of the guide slot 23, the limit slider 42 cannot continue to descend, so that the equipment box 44 continues to remain in the easy maintenance position.

[0048] It should be noted that the forklift and pedestrian identification mechanism 4 further includes a first RFID tag and a second RFID tag, wherein the first RFID tag is arranged on the forklift, and the second RFID tag is arranged on the uniform of the staff member.

[0049] like Figure 6 As shown, the transposition type beam alarm mechanism 5 includes a rotating column 51, a gear ring 52, a rotating seat 53, a warning laser light 54, a gear 55 and a threaded tube 56, wherein the rotating column 51 is rotatably nested and arranged at the bottom of the equipment box 44 through a bearing, the gear ring 52 is fixedly sleeved and arranged at the middle part of the outer side of the rotating column 51, the rotating seat 53 is fixedly arranged at the bottom of the rotating column 51, a plurality of the warning laser lights 54 are arranged, and the plurality of warning laser lights 54 are evenly fixedly arranged at the outer side of the rotating seat 53 and are all tilted downward, the gear 55 is meshed with one side of the gear ring 52, the threaded tube 56 is fixedly arranged at the inner side of the gear 55, the threaded tube 56 passes through the equipment box 44 and the bottom of the U-shaped frame 41 and extends to the inner side of the U-shaped frame 41, the threaded tube 56 is rotatably connected to the U-shaped frame 41 through a bearing and is threadedly sleeved and arranged at the outer side of the bottom end of the second screw 37.

[0050] By setting the above structure, after the second contact switch 43 contacts the first contact switch 24 driven by the limit slider 42, multiple warning laser lights 54 are energized and emit warning laser beams toward the ground. When the second screw 37 descends inside the threaded tube 56, it drives the threaded tube 56 threadedly connected thereto to rotate continuously. When the threaded tube 56 rotates, it drives the rotating column 51 to rotate through the gear 55 and the gear ring 52. The rotating column 51 drives the multiple warning laser lights 54 to rotate continuously through the rotating seat 53, so that the laser beam emitted by the warning laser light 54 continuously scans the staff, thereby reminding the staff.

[0051] Example 2

[0052] The present invention also discloses an intelligent safety signal control method, which specifically comprises the following steps:

[0053] S1, the RFID reader obtains the forklift position in real time through the first RFID tag on the forklift, and obtains the staff position in real time through the second RFID tag on the staff uniform, and the two types of position information are transmitted to the central processor through the data transmission module;

[0054] S2, the central processing unit determines the driving path of the forklift according to the continuous changes in the forklift position information, determines the walking path of the staff according to the continuous changes in the staff position information, and then determines the easy collision area according to the driving path data of the two;

[0055] S3. When the staff enters the collision-prone area, the motor 32 drives the first screw 33 to rotate continuously. When the first screw 33 rotates, it drives the lifting frame 34 connected to the screw thread to move downward continuously. When the lifting frame 34 moves downward, it drives the second screw 37 to move downward. At the same time, the reset spring 36 drives the connecting pipe 35 to move downward. When the connecting pipe 35 moves downward, it drives the U-shaped frame 41 to move downward. When the U-shaped frame 41 moves downward, it drives the limit slider 42 to move downward continuously inside the guide slot 23. At the same time, the equipment box 44 drives the transposed light beam alarm mechanism 5 to move downward as a whole.

[0056] S4, when the limit slider 42 moves to the bottom of the inner side of the guide slot 23, the second contact switch 43 contacts the first contact switch 24 under the drive of the limit slider 42. At this time, the multiple warning laser lights 54 are powered on and emit warning laser beams to the ground. At this time, due to the blocking of the limit slider 42 by the guide slot 23, the limit slider 42 cannot move down further, and the U-shaped frame 41 and the equipment box 44 that has arrived at the easy maintenance station cannot move down further. Subsequently, as the lifting frame 34 continues to move down, the lifting frame 34 compresses the return spring 36 and drives the second screw 37 to descend inside the threaded tube 56.

[0057] S5. When the second screw rod 37 descends, it drives the threaded tube 56 threadedly connected thereto to rotate continuously. When the threaded tube 56 rotates, it drives the rotating column 51 to rotate through the gear 55 and the gear ring 52. The rotating column 51 drives the multiple warning laser lights 54 to rotate continuously through the rotating seat 53, so that the laser beams emitted by the warning laser lights 54 continuously sweep over the staff, thereby reminding the staff;

[0058] S6. After the warning is completed, the motor 32 drives the first screw 33 to rotate in the reverse direction. After the first screw 33 rotates, it drives the lifting frame 34 to move up and reset. As the lifting frame 34 continues to move up, the transposed light beam alarm mechanism 5 and the forklift and pedestrian recognition mechanism 4 are reset one after another. When the lifting frame 34 is driven to reset, the motor 32 is stopped.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent safety signal control system, comprising a crossbeam (1), characterized in that: A mounting assembly (2) is installed on the inner side of the crossbeam (1), a power assembly (3) and a forklift and pedestrian identification mechanism (4) are arranged in sequence from top to bottom inside the mounting assembly (2), and a transposition-type light beam alarm mechanism (5) is arranged at the bottom end of the forklift and pedestrian identification mechanism (4); The power assembly (3) drives the forklift and pedestrian recognition mechanism (4) and the transposable light beam alarm mechanism (5) to move downward synchronously until the transposable light beam alarm mechanism (5) reaches the alarm position. At this time, the forklift and pedestrian recognition mechanism (4) arrive at the easy maintenance position, and the transposable light beam alarm mechanism (5) starts the alarm operation. Subsequently, the power assembly (3) drives the transposable light beam alarm mechanism (5) to make the transposable light beam alarm mechanism (5) perform the rotation alarm operation.

2. An intelligent safety signal control system according to claim 1, characterized in that: The mounting assembly (2) comprises a mounting frame (21), a shielding plate (22), a guide slide groove (23) and a first contact switch (24); The mounting frame (21) is fixed to the inner side of the crossbeam (1) by bolts, two shielding plates (22) are provided, and the two shielding plates (22) are respectively fixedly provided at the top of the front side and the top of the back side of the mounting frame (21), two guide slots (23) are provided, and the two guide slots (23) are respectively opened at the bottom of both sides of the mounting frame (21), and the first contact switch (24) is fixedly nested at the inner bottom of the adjacent guide slots (23).

3. An intelligent safety signal control system according to claim 2, characterized in that: The power assembly (3) comprises a fixing plate (31), a motor (32) and a first screw rod (33); The fixing plate (31) is fixedly arranged on the top of the inner side of the mounting frame (21), the motor (32) is fixedly arranged on the top of the fixing plate (31), the first screw rod (33) is arranged through the bottom of the fixing plate (31) and is rotatably connected to the fixing plate (31) via a bearing, and the first screw rod (33) is transmission-connected to the motor (32).

4. The intelligent safety signal control system according to claim 3 is characterized in that: The power assembly (3) further comprises a lifting frame (34), a connecting pipe (35), a return spring (36) and a second screw rod (37); The lifting frame (34) is sleeved on the top of the outer side of the first screw rod (33) and is threadedly connected to the first screw rod (33); the connecting pipe (35) is slidably penetrated in the vertical direction and is arranged at the bottom of the lifting frame (34) and is slidably sleeved on the outer side of the first screw rod (33); the return spring (36) is sleeved on the outer side of the first screw rod (33) and is fixedly connected between the top of the connecting pipe (35) and the inner wall of the lifting frame (34); the second screw rod (37) is fixedly arranged on the front side of the bottom of the lifting frame (34).

5. The intelligent safety signal control system according to claim 4, characterized in that: The forklift and pedestrian identification mechanism (4) comprises a U-shaped frame (41), a limit slider (42), a second contact switch (43) and an equipment box (44); The U-shaped frame (41) is slidably sleeved on the outside of the lifting frame (34) in the vertical direction and fixedly arranged at the bottom end of the connecting pipe (35); two limit sliders (42) are provided, and the two limit sliders (42) are respectively fixedly arranged at the top of both sides of the U-shaped frame (41) and are respectively slidably arranged on the inside of two guide slide grooves (23) in the vertical direction; the second contact switch (43) is fixedly nested at the bottom of the adjacent limit slider (42); and an RFID reader and a data transmission module are arranged inside the equipment box (44).

6. The intelligent safety signal control system according to claim 5, characterized in that: The forklift and pedestrian identification mechanism (4) further comprises a first RFID tag and a second RFID tag, wherein the first RFID tag is arranged on the forklift and the second RFID tag is arranged on the uniform of the staff member.

7. An intelligent safety signal control system according to claim 6, characterized in that: The transposition type light beam warning mechanism (5) comprises a rotating column (51), a gear ring (52), a rotating seat (53) and a warning laser light (54); The rotating column (51) is rotatably nested at the bottom of the equipment box (44) via a bearing, the gear ring (52) is fixedly sleeved at the middle of the outer side of the rotating column (51), the rotating seat (53) is fixedly arranged at the bottom of the rotating column (51), and a plurality of warning laser lights (54) are arranged, and the plurality of warning laser lights (54) are evenly fixedly arranged at the outer side of the rotating seat (53) and are all arranged tilted downward.

8. The intelligent safety signal control system according to claim 6, characterized in that: The transposition type light beam alarm mechanism (5) further comprises a gear (55) and a threaded tube (56); The gear (55) is meshed with one side of the gear ring (52); the threaded tube (56) is fixedly arranged on the inner side of the gear (55); the threaded tube (56) penetrates the equipment box (44) and the bottom of the U-shaped frame (41) and extends to the inner side of the U-shaped frame (41); the threaded tube (56) is rotatably connected to the U-shaped frame (41) through a bearing and is threadedly sleeved on the outer side of the bottom end of the second screw rod (37).

9. An intelligent safety signal control method, characterized in that: The method is implemented using an intelligent safety signal control system as claimed in claim 8, wherein the method specifically comprises the following steps: S1, the RFID reader obtains the forklift position in real time through the first RFID tag on the forklift, and obtains the staff position in real time through the second RFID tag on the staff uniform, and the two types of position information are transmitted to the central processor through the data transmission module; S2, the central processing unit determines the driving path of the forklift according to the continuous changes in the forklift position information, determines the walking path of the staff according to the continuous changes in the staff position information, and then determines the easy collision area according to the driving path data of the two; S3. When the staff enters the collision-prone area, the motor (32) drives the first screw rod (33) to rotate continuously. When the first screw rod (33) rotates, it drives the lifting frame (34) connected to the screw rod to move downward continuously. When the lifting frame (34) moves downward, it drives the second screw rod (37) to move downward. At the same time, the connection pipe (35) is driven downward by the reset spring (36). When the connection pipe (35) moves downward, it drives the U-shaped frame (41) to move downward. When the U-shaped frame (41) moves downward, it drives the limit slider (42) to move downward continuously inside the guide slot (23). At the same time, the transposition type light beam alarm mechanism (5) is driven to move downward as a whole through the equipment box (44); S4, when the limit slider (42) moves to the bottom of the inner side of the guide slot (23), the second contact switch (43) contacts the first contact switch (24) under the drive of the limit slider (42), and at this time, multiple warning laser lights (54) are powered on, and at the same time, a laser beam for warning is emitted to the ground. At this time, due to the blocking of the limit slider (42) by the guide slot (23), the limit slider (42) cannot move further downward, and the U-shaped frame (41) and the equipment box (44) that arrives at the easy maintenance station cannot move further downward. Subsequently, as the lifting frame (34) continues to move downward, the lifting frame (34) compresses the return spring (36) and drives the second screw (37) to descend inside the threaded tube (56); S5, when the second screw rod (37) descends, it drives the threaded tube (56) threadedly connected thereto to rotate continuously, and when the threaded tube (56) rotates, it drives the rotating column (51) to rotate through the gear (55) and the gear ring (52), and the rotating column (51) drives the plurality of warning laser lights (54) to rotate continuously through the rotating seat (53), so that the laser beams emitted by the warning laser lights (54) continuously sweep over the staff, thereby reminding the staff; S6. After the warning is completed, the motor (32) drives the first screw (33) to rotate in the reverse direction. After the first screw (33) rotates, it drives the lifting frame (34) to move up and reset. As the lifting frame (34) continues to move up, the transposed light beam alarm mechanism (5) and the forklift and pedestrian recognition mechanism (4) are reset in turn. When the lifting frame (34) is driven to reset, the motor (32) is stopped.

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