CN112933456B - Safety monitoring system and method for construction safety belt attachment state - Google Patents

Abstract

The invention provides a safety monitoring system and a safety monitoring method for a construction safety belt attachment state. In addition, the opening and closing recognition device is arranged, so that the reliability of hanging of the safety belt can be improved; by arranging the aerial work monitoring system, whether the constructor is in an aerial work state or not and whether the distance between the constructor and the edge of the platform is larger than or equal to a safe distance or not can be judged.

Description

Safety monitoring system and method for construction safety belt attachment state

Technical Field

The invention belongs to the field of building construction safety management and control systems, and particularly relates to the field of aerial work safety belt hook management and control.

Background

The national standard GB3608-2008 high-altitude operation classification stipulates that the operation is carried out at high altitude with the possibility of falling more than 2m (including 2m) of the falling height datum plane and is called high altitude operation. "

When the constructor works at a high place, the constructor needs to wear the safety belt. The safety belt is worn by not only a constructor but also a hook connected with the safety belt is hung on a reliable fixing piece.

At present, the management and control of safety belts worn by constructors at high-altitude operation personnel mainly depends on field management of managers, the automatic management and control are realized by rarely adopting an informatization means, the management efficiency is low, and potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a safety monitoring system and a safety monitoring method for a hanging state of a safety belt for construction, which can monitor whether a constructor hangs a hook of the safety belt on a fixing piece in real time and solve the problems of low automation degree, low management efficiency and potential safety hazard of safety belt wearing control of the constructor.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a safety belt is affiliated to state safety monitoring system for construction, includes safety belt couple monitoring system and backstage management system, safety belt couple monitoring system with backstage management system communication is connected, safety belt couple monitoring system installs on the couple, the couple is connected with the safety belt, safety belt couple monitoring system can judge and wear whether the constructor of safety belt is affiliated to the couple on the mounting.

Preferably, in the safety monitoring system for the construction safety belt depending state, the safety belt hook monitoring system comprises an infrared monitoring device, a first power supply and a first signal transmitting device, the infrared monitoring device comprises an infrared transmitting device and an infrared receiving device, the hook is provided with a space for accommodating the fixing piece, the infrared transmitting device and the infrared receiving device are arranged on the hook and located on two sides of the space, the first power supply supplies power to the infrared transmitting device, the infrared receiving device and the first signal transmitting device respectively, and the infrared transmitting device and the infrared receiving device are in communication connection with the background management system through the first signal transmitting device respectively.

Preferably, in foretell safety belt state safety monitoring system that leans on for construction, the couple is including having open-ended couple body and taking the spring catch to detain, take the spring catch detain one end with the open-ended one end of couple body is articulated through the round pin axle, take the spring catch to detain and can close under the effect of self spring under the no external force condition take the spring catch to detain the opening, infrared receiver set up in on the couple body and with the couple body falls into two spaces, two spaces are including the first space that supplies the safety rope to pass through and the second space that supplies the mounting to pass through, the opening is located the couple body that corresponds the second space, and the tip inner wall of keeping away from infrared receiver on the couple body that corresponds the second space is equipped with infrared transmitter.

Preferably, in the safety monitoring system for the construction safety belt attachment state, an opening and closing recognition device is arranged at the other end of the buckle with the spring pin, the opening and closing recognition device can recognize whether the buckle with the spring pin of the hook is subjected to opening and closing attachment actions, and the opening and closing recognition device is in communication connection with the background management system.

Preferably, in the safety monitoring system for the construction safety belt depending state, the opening and closing recognition device includes a fixed contact, a movable contact, a power-off counter and a battery, the power-off counter and the battery are respectively disposed on a wire connecting the fixed contact and the movable contact, the fixed contact is disposed on the hook body, the movable contact is disposed on the buckle with the spring pin, when the buckle with the spring pin is closed, the movable contact is in contact with the fixed contact, when the buckle with the spring pin is opened, the movable contact is separated from the fixed contact, the power-off counter can recognize whether the circuit is powered off or not and the number of times of power off, and the power-off counter is in communication connection with the background management system through the first signal transmitting device.

Preferably, in foretell safety monitoring system of safety belt state of being affiliated to for construction, still include an aerial working monitoring system, aerial working monitoring system includes three distancer, three distancer is including the distancer that is located the middle part and two distancers that are located the outside, and two distancers symmetry in the outside sets up in the both sides that are located the distancer at middle part, and three distancer is located same vertical plane, and three distancer is connected with backstage management system communication respectively, and the angle homoenergetic that is located the distancer in the outside just can rotate.

Preferably, in the safety monitoring system for the hanging state of the construction safety belt, the distance measured by the distance meter located in the middle is L, the distances measured by the distance meters located on the outer sides are X1 and X2, respectively, the included angles between the axis line of the distance meter located on the outer side and the axis line of the distance meter located in the middle are α 1 and α 2, respectively, the safety height is set to be H, the heights of platforms where the constructors are located, which are obtained by using different external distance meters, are M1 and M2, respectively, where M1= X1 cos α 1-L, M2= X2 cos α 2-L, and when M1 is greater than or equal to H or M2 is greater than or equal to H, it indicates that the constructor is in the high-altitude operation state; when M1< H and M2< H, the constructor is in a non-overhead working state.

Preferably, in the safety monitoring system for the hanging state of the construction safety belt, the safety distance from a constructor to the edge of the platform is set to be D, the included angles α 1 and α 2 between the axis of the range finder positioned at the outer side and the axis of the range finder positioned at the middle part can be changed along with the change of the distance L measured by the range finder positioned at the middle part, and α 1= arctan (D/L) and α 2= arctan (D/L) are satisfied, when X1> L/COS α 1 or X2> L/COS α 2, it indicates that the distance from the constructor to the edge of the platform is less than the set safety distance; when X1= L/COS alpha 1 and X2= L/COS alpha 2, the distance between the constructor and the platform edge is larger than or equal to the set safe distance, and the constructor is in a safe construction state.

Preferably, in the safety monitoring system for the hanging state of the safety belt for construction, the aerial work monitoring system further comprises a mounting plate, a guide rod, a sliding block and two support rods, the mounting plate is fixed with the safety belt, the guide rod is arranged on the mounting plate and is vertically arranged, the distance measuring instrument positioned in the middle part is arranged at the lower end of the guide rod and is vertically arranged, the slide block is arranged on the guide rod and can move up and down along the guide rod, the two support rods are symmetrically arranged on two sides of the guide rod, one end of each of the two support rods is hinged with the sliding block, the other end of each of the two support rods is hinged with the upper part of the range finder positioned on the outer side, the lower part of the range finder positioned on the outer side is hinged with the mounting plate, the slider can change the contained angle between the axial lead of the range finder located at the outer side and the axial lead of the range finder located at the middle part by moving up and down.

Preferably, in the safety monitoring system for the construction safety belt attachment state, the aerial work monitoring system further includes a second signal transmitting module and a second power supply, the second power supply can supply power to the three distance meters and the second signal transmitting module, and the three distance meters are in communication connection with the background management system through the second signal transmitting module.

The safety monitoring method for the attachment state of the construction safety belt adopts the safety monitoring system for the attachment state of the construction safety belt, and comprises the following steps:

step 1, judging whether a constructor attaches a hook to a fixing piece or not by a background management system through a safety belt hook monitoring system, and when the constructor does not attach the hook to the fixing piece by the safety belt hook monitoring system, indicating that the constructor is in a non-safety state, and performing step 2; when the safety belt hook monitoring system judges that the constructor hangs the hook on the fixing piece, the constructor is in a safe construction state, and the step 3 is carried out;

step 2, the background management system displays that the constructor is in a non-safe construction state, reminds the constructor to hang the hook on the fixing piece, and returns to the step 1 until the background management system closes the safety belt hook monitoring system;

and 3, the background management system displays that the constructor is in a safe construction state, and returns to the step 1 until the background management system closes the safety belt hook monitoring system.

According to the technical scheme disclosed above, compared with the prior art, the invention has the following beneficial effects:

according to the safety monitoring system and the method for the hanging state of the safety belt for construction, the safety belt hook monitoring system and the background management system are adopted, the safety belt hook monitoring system is in communication connection with the background management system, the safety belt hook monitoring system is installed on a hook, the hook is connected with the safety belt, and the safety belt hook monitoring system can judge whether a constructor wearing the safety belt hangs the hook on a fixing piece or not, so that whether the constructor hangs the hook of the safety belt on the fixing piece or not can be monitored in real time, and the problems that the automation degree of safety belt wearing management and control of the constructor is low, the management efficiency is low, and potential safety hazards exist are solved. In addition, through setting up the recognition device that opens and shuts, can discern whether the action of being affiliated to through opening with the closed of the area spring catch of couple to can improve the reliability that the safety belt was affiliated to. By arranging the aerial work monitoring system, whether the constructor is in an aerial work state or not and whether the distance between the constructor and the edge of the platform is larger than or equal to a safe distance or not can be judged.

Drawings

Fig. 1 is a schematic structural diagram of a safety monitoring system for a construction safety belt attachment state according to the present invention.

Fig. 2 is a schematic structural view of a safety belt hook monitoring system (when the hook is closed) according to the present invention.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic structural view of a safety belt hook monitoring system (when the hook is opened) according to the present invention.

Fig. 5 is a front view of the aerial work monitoring system of the present invention (not shown with a protective frame).

Figure 6 is a side view of the aerial work monitoring system of the present invention.

Fig. 7 is a schematic diagram of an aerial work monitoring system of the present invention.

In the figure: 1-safety belt hook monitoring system, 11-infrared transmitting device, 12-infrared receiving device, 13-first power supply, 14-first signal transmitting device, 2-hook, 21-hook body, 22-latch with spring, 23-pin shaft, 241-fixed contact, 242-movable contact, 25-first space, 26-second space, 27-stop block, 3-safety belt, 4-overhead operation monitoring system, 41-distance meter, 42-mounting plate, 43-guide rod, 44-slide block, 45-stay bar, 46-second signal transmitting module, 47-second power supply, 48-protective frame, 5-safety rope, 6-platform and 7-ground.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. The technical contents and features of the present invention will be described in detail below with reference to the embodiments illustrated in the accompanying drawings. It is further noted that the drawings are in greatly simplified form and are not to precise scale, merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.

Referring to fig. 1 to 7, the embodiment discloses a safety monitoring system for a construction safety belt attachment state, which includes a safety belt hook monitoring system 1 and a background management system (not shown), wherein the safety belt hook monitoring system 1 is in communication connection with the background management system, the safety belt hook monitoring system 1 is installed on a hook 2, the hook 2 is connected with a safety belt 3, and the safety belt hook monitoring system 1 can judge whether a constructor wearing the safety belt 3 attaches the hook 2 to a fixing member (not shown).

The safety monitoring system for the hanging state of the safety belt for construction provided by the invention adopts a safety belt hook monitoring system 1 and a background management system, wherein the safety belt hook monitoring system 1 is in communication connection with the background management system, the safety belt hook monitoring system 1 is arranged on a hook 2, the hook 2 is connected with a safety belt 3, and the safety belt hook monitoring system 1 can judge whether a constructor wearing the safety belt 3 hangs the hook 2 on a fixing piece or not, so that whether the constructor hangs the hook 2 of the safety belt 3 on the fixing piece or not can be monitored in real time, and the problems of low automation degree, low management efficiency and potential safety hazard of the constructor wearing and controlling the safety belt 3 are solved.

Preferably, in the safety monitoring system for the construction safety belt hanging state, the safety belt hook monitoring system 1 includes an infrared monitoring device, a first power supply 13 and a first signal transmitting device 14, the infrared monitoring device includes an infrared transmitting device 11 and an infrared receiving device 12, the hook 2 has a space for accommodating the fixing member, the infrared transmitting device 11 and the infrared receiving device 12 are disposed on the hook 2 and located at two sides of the space, the first power supply 13 supplies power to the infrared transmitting device 11, the infrared receiving device 12 and the first signal transmitting device 14, and the infrared transmitting device 11 and the infrared receiving device 12 are in communication connection with the background management system through the first signal transmitting device 14. In the safety belt hook monitoring system 1 adopting the structure, the infrared emitting device 11 emits infrared rays, the infrared receiving device 12 sends information whether the infrared rays are received to the background management system, and when the hook 2 is not hung on the fixing piece, the infrared receiving device 12 can receive the infrared rays emitted by the infrared emitting device 11; when the hook 2 is hung on the fixing member, the infrared receiving device 12 does not receive the infrared rays emitted from the infrared emitting device 11.

Preferably, in the safety monitoring system for the hanging state of the construction safety belt, the stoppers 27 are disposed on both sides of the middle portion of the hanger in the thickness direction, and the infrared receiving device 12 can be protected by the stoppers 27.

Specifically, in the safety monitoring system for the hanging state of the construction safety belt, the hook 2 comprises a hook body 21 with an opening and a latch 22 with a spring, one end of the buckle with the spring pin 22 is hinged with one end of the opening of the hook body 21 through a pin shaft 23, the buckle with the spring pin 22 can rotate around the pin shaft 23, and the snap-in latch 22 is able to close the opening under the action of its own spring without external force, the infrared receiving device 12 is disposed on the hook body 21 and divides the hook body 21 into two spaces, the two spaces include a first space 25 for the safety rope 5 to pass through and a second space 26 for the fixing member to pass through, the opening is positioned on the hook body 21 corresponding to the second space 26, and the inner wall of the end part of the hook body 21 corresponding to the second space, which is far away from the infrared receiving device 12, is provided with the infrared emitting device 11.

Preferably, in the safety monitoring system for the hanging state of the construction safety belt, an opening and closing recognition device is arranged at the other end of the buckle with the spring pin 22, the opening and closing recognition device can recognize whether the buckle with the spring pin 22 of the hook 2 is opened or closed, and the opening and closing recognition device is in communication connection with the background management system. By arranging the opening and closing recognition device, whether the latch 22 with the spring of the hook 2 is opened or closed can be recognized, so that the reliability of the hanging of the safety belt 3 can be improved.

Preferably, in the safety monitoring system for a safety belt in construction, the open/close recognition device includes a fixed contact 241, a movable contact 242, a power-off counter (not shown), and a battery (not shown), the power-off counter and the battery are respectively provided on the wires connecting the fixed contact 241 and the movable contact 242, the fixed contact 241 is disposed on the hook body 21, the movable contact 242 is disposed on the latch 22 with spring, when the snap latch 22 closes the opening, the movable contact 242 is in contact with the fixed contact 241, when the snap latch 22 opens the opening, the movable contact 242 is disengaged from the fixed contact 241, the power-off counter can identify whether the circuit is powered off or not and the power-off times, and is in communication connection with the background management system through the first signal transmitting device 14. By adopting the opening and closing recognition device with the structure, whether the latch 22 with the spring of the hook 2 is opened or closed can be recognized, so that the reliability of the hanging of the safety belt 3 can be improved.

Preferably, in foretell safety belt for construction is affiliated to state safety monitoring system, still include a high altitude construction monitoring system 4, high altitude construction monitoring system 4 includes three distancer 41, three distancer 41 is including the distancer 41 that is located the middle part and two distancer 41 that are located the outside, and two distancer 41 symmetries that are located the outside set up in the both sides that are located the distancer 41 at middle part, and three distancer 41 is located same vertical plane, and three distancer 41 is connected with background management system communication respectively, and the angle homoenergetic of the distancer 41 that is located the outside can rotate.

Preferably, in the safety monitoring system for the construction seatbelt mounted state described above, the distance measured by the distance meter 41 located at the middle is L, the distances measured by the distance meters 41 located at the outer sides are X1 and X2, respectively, the platform 6 is higher than the ground 7, X1 and X2 are both the distances from the distance meters 41 located at the outer sides to the platform 6 and also from the distance meters 41 located at the outer sides to the ground 7, in this embodiment, X1 is the distance from the distance meters 41 located at the outer sides to the platform 6, X2 is the distance from the distance meters 41 located at the outer sides to the ground 7, the included angles between the axial line of the distance meters 41 located at the outer sides and the axial line of the distance meters 41 located at the middle are α 1 and α 2, respectively, the safety height is set to H, in this embodiment, H =2 meters, the platform heights of constructors obtained by using different outer distance meters 41 are M1 and M2, respectively, wherein, m1= X1 cos α 1-L, M2= X2 cos α 2-L, and when M1 is greater than or equal to H or M2 is greater than or equal to H, the constructor is in an aerial work state, that is, the height of the platform 6 where the constructor is located is higher than the safety height H, and the constructor belongs to the aerial work state; when M1< H and M2< H, the constructor is in a non-overhead working state.

Preferably, in the safety monitoring system for the hanging state of the construction safety belt, the safety distance from the operator to the platform edge is set to be D, in this embodiment, D =1 meter, both the included angles α 1 and α 2 between the axis of the outer distance meter 41 and the axis of the middle distance meter 41 can be changed along with the change of the distance L measured by the middle distance meter 41, and α 1= arctan (D/L) and α 2= arctan (D/L) are satisfied, when X1> L/COS α 1 or X2> L/COS α 2, it indicates that the distance from the operator to the platform edge is less than the set safety distance; when X1= L/COS alpha 1 and X2= L/COS alpha 2, the distance between the constructor and the platform edge is larger than or equal to the set safe distance, and the constructor is in a safe construction state.

Preferably, the method is adopted to judge that the constructor is in the high-altitude operation state, and then the method is adopted to judge whether the distance between the constructor and the edge of the platform is greater than or equal to the safety distance.

Preferably, in the safety monitoring system for the safety belt hanging state for construction, the aerial work monitoring system 4 further includes a mounting plate 42, a guide bar 43, a slider 44 and two support bars 45, the mounting plate 42 is fixed to the safety belt 3, the guide bar 43 is mounted on the mounting plate 42 and vertically disposed, the distance meter 41 located in the middle is mounted at the lower end of the guide bar 43 and vertically disposed, the slider 44 is disposed on the guide bar 43 and can move up and down along the guide bar 43, the two support bars 45 are symmetrically disposed at both sides of the guide bar 43, one ends of the two support bars 45 are respectively hinged to the slider 44, the other ends of the two support bars 45 are respectively hinged to the upper portion of the distance meter 41 located in the outer side, the lower portion of the distance meter 41 located in the outer side is respectively hinged to the mounting plate 42, and the slider 44 can change the axial line between the axial lines of the distance meter 41 located in the middle and the axial line of the distance meter 41 by moving up and down And (4) an included angle. With the above configuration, the angles α 1 and α 2 between the axis of the outer distance meter 41 and the axis of the middle distance meter 41 are always equal to each other, that is, α 1= α 2. In this embodiment, the slider 44 is a self-powered slider 44, and the self-powered slider 44 is in communication connection with a background management system. With the above structure, the background management system can control the self-powered slider 44 to move up and down according to the distance L measured by the distance meter 41 located in the middle, so that the included angles α 1 and α 2 between the axis of the distance meter 41 located on the outer side and the axis of the distance meter 41 located in the middle can be changed along with the change of the distance L measured by the distance meter 41 located in the middle, and α 1= arctan (D/L) and α 2= arctan (D/L) are satisfied.

Of course, the slider 44 is driven by a driving motor (not shown), and the driving motor is in communication connection with the background management system.

Preferably, in the safety monitoring system for the hanging state of the construction safety belt, the aerial work monitoring system 4 further includes a protection frame 48, and the mounting plate 42, the guide bar 43, the slider 44, the stay bar 45 and the three distance measuring devices are all disposed in the protection frame 48, and are used for protecting the guide bar 43, the slider 44 and the distance measuring device 41 from being damaged by external force.

Preferably, in the safety monitoring system for the hanging state of the safety belt for construction, the aerial work monitoring system 4 further includes a second signal transmitting module 46 and a second power supply 47, the second power supply 47 can supply power to the three distance meters 41 and the second signal transmitting module 46, and the three distance meters 41 are in communication connection with the background management system through the second signal transmitting module 46.

With reference to fig. 1 to 7, the present embodiment further discloses a safety monitoring method for a construction safety belt attachment state, which adopts the safety monitoring system for a construction safety belt attachment state, and the method includes the following steps:

step 1, judging whether a constructor hangs a hook 2 on a fixing piece or not by a background management system through a safety belt hook monitoring system 1, and when the safety belt hook monitoring system 1 judges that the constructor does not hang the hook 2 on the fixing piece, indicating that the constructor is in a non-safety state, and performing step 2; when the safety belt hook monitoring system 1 judges that the constructor hangs the hook 2 on the fixing piece, the constructor is in a safe construction state, and the step 3 is carried out;

step 2, the background management system displays that the constructor is in a non-safe construction state, reminds the constructor to hang the hook 2 on the fixing piece, and returns to the step 1 until the background management system closes the safety belt hook monitoring system 1;

and 3, the background management system displays that the constructor is in a safe construction state, and returns to the step 1 until the background management system closes the safety belt hook monitoring system 1.

The invention provides a safety monitoring method for the hanging state of a safety belt for construction, which comprises the following steps: step 1, judging whether a constructor hangs a hook 2 on a fixing piece or not by a background management system through a safety belt hook monitoring system 1, and when the safety belt hook monitoring system 1 judges that the constructor does not hang the hook 2 on the fixing piece, indicating that the constructor is in a non-safety state, and performing step 2; when the safety belt hook monitoring system 1 judges that the constructor hangs the hook 2 on the fixing piece, the constructor is in a safe construction state, and the step 3 is carried out; step 2, the background management system displays that the constructor is in a non-safe construction state, reminds the constructor to hang the hook 2 on the fixing piece, and returns to the step 1 until the background management system closes the safety belt hook monitoring system 1; and 3, the background management system displays that the constructor is in a safe construction state, and returns to the step 1 until the background management system closes the safety belt hook monitoring system 1, so that whether the constructor hangs the hook 2 of the safety belt 3 on the fixing piece can be monitored in real time, and the problems that the constructor wears the safety belt 3, the management and control automation degree is low, the management efficiency is low, and potential safety hazards exist are solved. .

Preferably, in the safety monitoring method for the hanging state of the construction safety belt, in step 1, the safety belt hook monitoring system 1 monitors whether the hook 2 is hung on the fixing member through an infrared monitoring device, the infrared monitoring device includes an infrared emitting device 11, an infrared receiving device 12, a first power supply 13 and a first signal emitting device 14, the hook 2 has a space for accommodating the fixing member, the infrared emitting device 11 and the infrared receiving device 12 are disposed on the hook 2 and located at two sides of the space, the first power supply 13 supplies power to the infrared emitting device 11, the infrared receiving device 12 and the first signal emitting device 14 respectively, the infrared emitting device 11 and the infrared receiving device 12 are in communication connection with the background management system through the first signal emitting device 14 respectively, when the infrared emitting device 12 cannot receive the infrared rays emitted by the infrared emitting device 11, it indicates that the hook 2 is attached to the fixing member, whereas when the infrared receiving device 12 receives the infrared rays emitted from the infrared emitting device 11, it indicates that the hook 2 is not attached to the fixing member. In the safety belt hook monitoring system 1 adopting the structure, the infrared emitting device 11 emits infrared rays, the infrared receiving device 12 sends information whether the infrared rays are received to the background management system, and when the hook 2 is not hung on the fixing piece, the infrared receiving device 12 can receive the infrared rays emitted by the infrared emitting device 11; when the hook 2 is hung on the fixing member, the infrared receiving device 12 does not receive the infrared rays emitted from the infrared emitting device 11.

Preferably, in the safety monitoring method for the hanging state of the construction safety belt, the stoppers 27 are provided on both sides of the middle portion of the hanger in the thickness direction, and the infrared receiving device 12 can be protected by providing the stoppers 27.

Preferably, in the safety monitoring method for the hanging state of the construction safety belt, the hook 2 comprises a hook body 21 with an opening and a latch 22 with a spring, one end of the buckle with the spring pin 22 is hinged with one end of the opening of the hook body 21 through a pin shaft 23, the buckle with the spring pin 22 can rotate around the pin shaft 23, and the snap-action latch 22 is able to close the opening under the action of its own spring without external force, the infrared receiving device 12 is disposed on the hook body 21 and divides the hook body 21 into two spaces, the two spaces comprise a first space for the safety rope 5 to pass through and a second space for the fixing piece to pass through, the opening is positioned on the hook body 21 corresponding to the second space, and the inner wall of the end part of the hook body 21 corresponding to the second space, which is far away from the infrared receiving device 12, is provided with the infrared emitting device 11.

Preferably, in the safety monitoring method for the hanging state of the construction safety belt, in step 1, whether a constructor carries out hanging action of the hook 2 or not is judged through the opening and closing recognition device, and whether the hook 2 is hung on the fixing piece or not is monitored through the infrared monitoring device, wherein the opening and closing recognition device is arranged at the other end of the buckle with the spring pin 22 and is in communication connection with the background management system. By arranging the opening and closing recognition device, whether the latch 22 with the spring of the hook 2 is opened or closed can be recognized, so that the reliability of the hanging of the safety belt 3 can be improved.

Preferably, in the safety monitoring method for the attachment state of the construction seatbelt, the open/close recognition device includes a fixed contact 241, a movable contact 242, a power-off counter (not shown), and a battery (not shown), the power-off counter and the battery are respectively provided on the wires connecting the fixed contact 241 and the movable contact 242, the fixed contact 241 is disposed on the hook body 21, the movable contact 242 is disposed on the latch 22 with spring, when the snap latch 22 closes the opening, the movable contact 242 is in contact with the fixed contact 241, when the snap latch 22 opens the opening, the movable contact 242 is disengaged from the fixed contact 241, the power-off counter can identify whether the circuit is powered off or not and the power-off times, and is in communication connection with the background management system through the first signal transmitting device 14. By adopting the opening and closing recognition device with the structure, whether the latch 22 with the spring of the hook 2 is opened or closed can be recognized, so that the reliability of the hanging of the safety belt 3 can be improved.

Preferably, in the safety monitoring method for the hanging state of the safety belt for construction, before the step 1, the background management system firstly judges whether the height of a platform where a constructor wearing the safety belt 3 is located is higher than a set safety height through the aerial work monitoring system 4, and if the height of the platform where the constructor wearing the safety belt 3 is located is higher than the set safety height and the platform where the constructor is located is smaller than the set safety width, the step 1 is performed; and if the height of the platform where the constructor wearing the safety belt 3 is located is lower than the set safety height, indicating the safety construction state of the constructor, and performing the step 3.

Preferably, in the safety monitoring method for the hanging state of the safety belt for construction, the aerial work monitoring system 4 includes three distance meters 41, the three distance meters 41 include a distance meter 41 located in the middle and two distance meters 41 located on the outer sides, the two distance meters 41 located on the outer sides are symmetrically disposed on two sides of the distance meter 41 located in the middle, the three distance meters 41 are located in the same vertical plane, the three distance meters 41 are respectively in communication connection with the back-end management system, the angles of the distance meters 41 located on the outer sides can all rotate, the distance measured by the distance meter 41 located in the middle is L, the distances measured by the distance meters 41 located on the outer sides are respectively X1 and X2, the platform 6 is higher than the ground 7, both X1 and X2 may be the distance from the distance meter 41 located on the outer side to the platform 6, and may also be the distance from the distance meter 41 located on the outer side to the ground 7, x1 is a distance from the outer distance meter 41 to the platform 6, X2 is a distance from the outer distance meter 41 to the ground 7, included angles between an axis of the outer distance meter 41 and an axis of the middle distance meter 41 are α 1 and α 2, respectively, and a safety height is set to be H, in this embodiment, H =2 meters, and heights of platforms where constructors are located, which are obtained by using different outer distance meters 41, are M1 and M2, respectively, where M1= X1 cos α 1-L and M2= X2 cos α 2-L, and when M1 is greater than or equal to H or M2 is greater than or equal to H, it indicates that the constructor is in an aerial work state, that is, the height of the platform 6 where the constructor is located is higher than the safety height H, and belongs to the aerial work state; when M1< H and M2< H, the constructor is in a non-overhead working state.

Preferably, in the safety monitoring method for the hanging state of the construction safety belt, when the constructor is in the high-altitude operation state, the background management system firstly judges whether the distance between the constructor and the edge of the platform is greater than or equal to a set safe distance D through the aerial work monitoring system 4, d =1 meter, the angles α 1, α 2 between the axis of the range finder 41 located at the outer side and the axis of the range finder 41 located at the middle portion can both vary with the distance L measured by the range finder 41 located at the middle portion, and α 1= arctan (D/L), α 2= arctan (D/L), when the distance between the constructor and the edge of the platform is less than the set safe distance D, reminding the constructor to hang the hook 2 on the fixing piece in time when X1 is greater than L/COS alpha 1 or X2 is greater than L/COS alpha 2; when X1= L/COS alpha 1 and X2= L/COS alpha 2, the distance between the constructor and the platform edge is larger than or equal to the set safe distance D, and the constructor is in a safe construction state.

Preferably, in the safety monitoring method for the safety belt hanging state for construction, the aerial work monitoring system 4 further includes a mounting plate 42, a guide bar 43, a slider 44 and two support bars 45, the mounting plate 42 is fixed to the safety belt 3, the guide bar 43 is mounted on the mounting plate 42 and vertically disposed, the distance meter 41 located in the middle is mounted at the lower end of the guide bar 43 and vertically disposed, the slider 44 is disposed on the guide bar 43 and can move up and down along the guide bar 43, the two support bars 45 are symmetrically disposed at both sides of the guide bar 43, one end of each of the two support bars 45 is hinged to the slider 44, the other end of each of the two support bars 45 is hinged to the upper portion of the distance meter 41 located in the outer side, the lower portion of the distance meter 41 located in the outer side is hinged to the mounting plate 42, and the slider 44 can change the axial line between the axial lines of the distance meter 41 located in the middle and the axial line of the distance meter 41 by moving up and down the slider 44 The angle alpha.

Preferably, in the safety monitoring method for the hanging state of the construction safety belt, the aerial work monitoring system 4 further includes a protection frame 48, and the mounting plate 42, the guide bar 43, the slider 44, the stay bar 45 and the three distance measuring devices are all disposed in the protection frame 48 and used for protecting the guide bar 43, the slider 44 and the distance measuring device 41 from being damaged by external force.

With the above configuration, the angle between the axis of the distance meter 41 located on the outer side and the axis of the distance meter 41 located on the middle side is always equal to α 1 and α 2, that is, α 1= α 2. In this embodiment, the slider 44 is a self-powered slider 44, and the self-powered slider 44 is in communication connection with a background management system. With the structure, the background management system can control the self-powered slider 44 to move up and down according to the distance L measured by the distance meter 41 located in the middle, so that the included angles between the axis of the distance meter 41 located on the outer side and the axis of the distance meter 41 located in the middle are both α 1 and α 2, which can change along with the change of the distance L measured by the distance meter 41 located in the middle, and α 1= arctan (D/L) and α 2= arctan (D/L) are satisfied.

Of course, the sliding block 44 is driven by a driving motor, and the driving motor is in communication connection with the background management system.

Preferably, in the safety monitoring method for the hanging state of the safety belt for construction, the aerial work monitoring system 4 further includes a second signal transmitting module 46 and a second power supply 47, the second power supply 47 can supply power to the three distance meters 41 and the second signal transmitting module 46, and the three distance meters 41 are in communication connection with the background management system through the second signal transmitting module 46.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims (7)

1. A safety monitoring system for the hanging state of a safety belt for construction is characterized by comprising a safety belt hook monitoring system and a background management system, wherein the safety belt hook monitoring system is in communication connection with the background management system, the safety belt hook monitoring system is installed on a hook, the hook is connected with the safety belt, the safety belt hook monitoring system can judge whether a constructor wearing the safety belt hangs the hook on a fixing part or not, the safety monitoring system for the hanging state of the safety belt for construction further comprises an aerial work monitoring system, the aerial work monitoring system comprises three range finders, the three range finders comprise a range finder positioned in the middle and two range finders positioned on the outer sides, the two range finders positioned on the outer sides are symmetrically arranged on two sides of the range finder positioned in the middle, and the three range finders are positioned in the same vertical plane, the three distance measuring instruments are respectively in communication connection with the background management system, and the angles of the distance measuring instruments positioned on the outer side can rotate; the aerial work monitoring system further comprises a mounting plate, a guide rod, a sliding block and two supporting rods, wherein the mounting plate is fixed with a safety belt, the guide rod is mounted on the mounting plate and vertically arranged, the distance measuring instrument located in the middle is mounted at the lower end of the guide rod and vertically arranged, the sliding block is arranged on the guide rod and can move up and down along the guide rod, the two supporting rods are symmetrically arranged on two sides of the guide rod, one ends of the two supporting rods are respectively hinged with the sliding block, the other ends of the two supporting rods are respectively hinged with the upper portion of the distance measuring instrument located on the outer side, the lower portion of the distance measuring instrument located on the outer side is respectively hinged with the mounting plate, and the included angle between the axial lead of the distance measuring instrument located on the outer side and the axial lead of the distance measuring instrument located in the middle can be changed by the sliding block moving up and down; setting the safe distance of a constructor from the edge of the platform as D, wherein included angles alpha 1 and alpha 2 between the axis of the distance meter positioned on the outer side and the axis of the distance meter positioned in the middle can change along with the change of the distance L from the distance meter positioned in the middle to the platform, and the included angles meet the requirements of alpha 1= arctan (D/L) and alpha 2= arctan (D/L); the distances measured by the distance measuring instruments positioned on the outer side are X1 and X2 respectively, X1 is the distance from the distance measuring instrument positioned on the outer side to the platform or the distance from the distance measuring instrument positioned on the outer side to the ground, X2 is the distance from the distance measuring instrument positioned on the outer side to the platform or the distance from the distance measuring instrument positioned on the outer side to the ground, and when X1> L/COS alpha 1 or X2> L/COS alpha 2, the distance from a constructor to the edge of the platform is smaller than the set safety distance; when X1= L/COS alpha 1 and X2= L/COS alpha 2, the distance between the constructor and the platform edge is larger than or equal to the set safe distance, and the constructor is in a safe construction state.

2. The safety monitoring system for the hanging state of the construction safety belt as claimed in claim 1, wherein the safety belt hanging hook monitoring system comprises an infrared monitoring device, a first power supply and a first signal transmitting device, the infrared monitoring device comprises an infrared transmitting device and an infrared receiving device, the hanging hook has a space for accommodating the fixing member, the infrared transmitting device and the infrared receiving device are arranged on the hanging hook and located at two sides of the space, the first power supply respectively supplies power to the infrared transmitting device, the infrared receiving device and the first signal transmitting device, and the infrared transmitting device and the infrared receiving device are respectively in communication connection with the background management system through the first signal transmitting device.

3. The safety monitoring system for the attachment state of a construction safety belt according to claim 2, the hook comprises a hook body with an opening and a buckle with a spring pin, one end of the buckle with the spring pin is hinged with one end of the opening of the hook body through a pin shaft, the buckle with the spring pin can rotate around the pin shaft, and the spring-loaded latch can close the opening under the action of the self spring under the condition of no external force, the infrared receiving device is arranged on the hook body and divides the hook body into two spaces, the two spaces comprise a first space for the safety rope to pass through and a second space for the fixing piece to pass through, the opening is positioned on the hook body corresponding to the second space, and the inner wall of the end part of the hook body corresponding to the second space, which is far away from the infrared receiving device, is provided with the infrared emitting device.

4. The safety monitoring system for the hanging state of the construction safety belt as claimed in claim 3, wherein an open-close recognition device is provided on the other end of the buckle with the spring pin, the open-close recognition device can recognize whether the buckle with the spring pin of the hook is opened or closed, and the open-close recognition device is in communication connection with the background management system.

5. The safety monitoring system for the hanging state of a construction safety belt according to claim 4, wherein the opening and closing recognition device comprises a fixed contact, a movable contact, a power-off counter and a battery, the power-off counter and the battery are respectively arranged on a lead connecting the fixed contact and the movable contact, the fixed contact is arranged on the hook body, the movable contact is arranged on the buckle with the spring pin, the movable contact is in contact with the fixed contact when the buckle with the spring pin closes the opening, the movable contact is separated from the fixed contact when the buckle with the spring pin opens the opening, the power-off counter can recognize whether the circuit is powered off or not and the power-off times, and the power-off counter is in communication connection with the background management system through the first signal emitting device.

6. The safety monitoring system for the hanging state of the construction seatbelt and leaning on according to claim 1, wherein a safety height is set to be H, heights of platforms where a constructor is located are respectively M1 and M2, wherein M1= X1 cos α 1-L, M2= X2 sec α 2-L, and when M1 is greater than or equal to H or M2 is greater than or equal to H, the safety monitoring system indicates that the constructor is in an overhead working state; when M1< H and M2< H, the constructor is in a non-overhead working state.

7. A safety monitoring method for a construction safety belt attachment state, characterized in that the safety monitoring system for the construction safety belt attachment state according to any one of claims 1 to 6 is adopted, and the method comprises the following steps:

step 1, judging whether a constructor hangs a hook on a fixing piece or not by a background management system through a safety belt hook monitoring system, indicating that the constructor is in a non-safety state when the safety belt hook monitoring system judges that the constructor does not hang the hook on the fixing piece, and performing step 2; when the safety belt hook monitoring system judges that the constructor hangs the hook on the fixing piece, the constructor is in a safe construction state, and the step 3 is carried out;

step 2, the background management system displays that the constructor is in a non-safe construction state, reminds the constructor to hang the hook on the fixing piece, and returns to the step 1 until the background management system closes the safety belt hook monitoring system;

and 3, the background management system displays that the constructor is in a safe construction state, and returns to the step 1 until the background management system closes the safety belt hook monitoring system.

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