Sensing and early warning system of bridge girder erection machine

Abstract

The utility model relates to a bridge girder erection machine perception early warning system, and belongs to the technical field of bridge girder erection machine monitoring, and the early warning system comprises a sensor assembly which is installed on a bridge girder erection machine and is used for detecting the working state of the bridge girder erection machine and sending state data; the controller is used for receiving the state data and sending an alarm signal when the state data is abnormal; the alarm responds to the alarm signal and executes an alarm action; the face recognizer is mounted on the bridge girder erection machine and is used for acquiring a face image, determining whether an operator is an operator or not according to the face image and sending a correct signal when the operator is the operator; after the controller receives the correct signal, the timer is controlled to time, and the timing duration is fed back; the unlocking structure is used for sending an unlocking signal after the controller determines that the timing duration reaches a set duration threshold value, and the unlocking structure responds to the unlocking signal and unlocks the operation room; the duration threshold value is the average duration of historical comprehensive inspection of the bridge erecting machine. The method has the beneficial effect of reducing potential safety hazards.

Description

Technical Field

[0001] The present application relates to the technical field of gantry crane monitoring, and in particular to a gantry crane perception and early warning system. Background Art

[0002] In the related art, a patent with the publication number CN208537960U and the publication date of February 22, 2019 discloses a safety monitoring system for a gantry crane, which includes a data acquisition module connected to a monitoring host. The monitoring host is connected to an alarm module, and the monitoring host sends the received data to a remote service center through a first wireless communication module. The remote service center is connected to a video monitoring module for collecting video information of the real-time working process of the gantry crane through a second wireless communication module; the data acquisition module includes a weight sensor, a pressure sensor, an inclination sensor, a stroke sensor, a speed sensor, an anemometer, and a GPS module; the weight sensor is installed on the bearing seat of the hoist of the gantry crane for real-time monitoring of the lifting weight of the gantry crane; the pressure sensor is installed on both sides of the front outrigger, rear outrigger, and auxiliary outrigger of the gantry crane, and both sides of the front outrigger and rear outrigger of the girder machine for real-time monitoring of the hydraulic oil pressure on both sides of the outriggers; the inclination sensor is installed at the end of the main girder of the gantry crane and the top of the front outrigger of the gantry crane for monitoring the levelness of the main girder and the perpendicularity of the outriggers; the stroke sensor is installed on the gantry crane and its hoisting system, front and rear trolleys, and girder machine for detecting the hoisting height and lowering depth of the hoisting system, the longitudinal and lateral displacements of the front and rear trolleys, and the longitudinal displacements of the gantry crane and the girder machine; the speed sensor is installed on the traveling mechanism of the main outriggers of the gantry crane for real-time measurement of the running speed of the gantry crane; the anemometer is used for real-time detection of the on-site wind speed, and the GPS module is used for real-time detection of the position information of the gantry crane.

[0003] Although the above-mentioned related technology can achieve the safety monitoring of the gantry crane, since a comprehensive inspection of the gantry crane is required every time the gantry crane is restarted, if the inspection of the gantry crane is forgotten before the gantry crane runs, it is easy to cause potential safety hazards. Summary of the Utility Model

[0004] In order to reduce potential safety hazards, the present application provides a gantry crane perception and early warning system, and adopts the following technical solutions:

[0005] A gantry crane perception and early warning system includes:

[0006] A sensor assembly, installed on the gantry crane, for detecting the working state of the gantry crane and sending status data;

[0007] A controller, receiving the status data, and sending an alarm signal when the status data is abnormal;

[0008] An alarm that performs an alarm action in response to the alarm signal;

[0009] A face recognition device installed on the bridge erection machine, used to collect face images, determine whether it is an operator based on the face images, and send a correct signal when it is an operator;

[0010] A timer that, after the controller receives the correct signal, controls the timer to count and feedback the counting duration;

[0011] An unlocking structure that, after the controller determines that the counting duration reaches the set duration threshold, sends an unlocking signal, and the unlocking structure responds to the unlocking signal to unlock the operation room; the duration threshold is the average duration of a comprehensive inspection of the bridge erection machine in history.

[0012] By adopting the above technical solution, since the operation room can only be unlocked after it is determined to be an operator and the set duration threshold is reached, it can force the operator to conduct a comprehensive inspection of the bridge erection machine before operation, thus preventing the operator from forgetting to inspect the bridge erection machine and reducing potential safety hazards.

[0013] Optionally, the unlocking structure includes:

[0014] A locking block installed on the door of the operation room, provided with a locking groove and a locking hole, and the locking hole communicates with the locking groove;

[0015] A locking plate slidably connected to the main body of the operation room and capable of being clamped in the locking groove;

[0016] A locking rod clamped in the locking plate through the locking hole;

[0017] A driving cylinder, the piston rod of which is fixedly connected to the locking rod, and the cylinder body is installed on the door of the operation room.

[0018] By adopting the above technical solution, the driving cylinder responds to the unlocking signal, contracts to drive the locking rod to disengage from the locking plate, and then slides the locking plate to make the locking plate disengage from the locking groove, thereby realizing unlocking.

[0019] Optionally, the unlocking structure further includes:

[0020] A return spring, one end of which is connected to the locking plate and the other end is connected to the main body of the operation room, for driving the reset of the locking plate;

[0021] A hook fixedly connected to one end of the locking plate away from the locking block;

[0022] A hanging ring fixedly connected to the main body of the operation room, and the hook can be hooked on the hanging ring.

[0023] By adopting the above technical solution, after the locking rod disengages from the locking plate, the locking plate will automatically reset under the elastic force of the return spring, and then the hook will be hooked on the hanging ring, avoiding the situation that the locking plate is clamped in the locking groove under the action of external force after the operator enters the operation room.

[0024] Optionally, the unlocking structure further includes:

[0025] A pressure sensor, installed on the inner wall of the locking groove, sends a pressure value after being pressured by the locking plate; after the controller determines that the pressure value is greater than a set pressure threshold, it sends a locking signal; the driving cylinder drives the locking rod to be clamped in the locking plate in response to the locking signal.

[0026] Optionally, the unlocking structure further includes:

[0027] A voice broadcaster, installed on the main body of the operation room; when the operator leaves the operation room, the timer starts timing and feeds back the induction duration; after the controller determines that the induction duration reaches a set induction duration threshold and fails to receive the pressure value, it controls the voice broadcaster to broadcast the door-locking information.

[0028] By adopting the above solution, the operator can be reminded to lock the door in a timely manner.

[0029] Optionally, the sensor assembly includes:

[0030] An anemometer, installed on the main body of the bridge erecting machine, for detecting the ambient wind speed and sending the wind speed value;

[0031] An inclinometer, installed on the boom of the bridge erecting machine, for detecting the inclination angle of the boom and sending the inclination value;

[0032] A load cell, installed on the hook of the bridge erecting machine, for detecting the weight borne by the hook and sending the weight value;

[0033] An altitude sensor, installed on the boom of the bridge erecting machine, for detecting the height of the boom and sending the height value;

[0034] A travel sensor, installed on the moving platform of the bridge erecting machine, for detecting the moving travel of the moving platform and sending the travel value;

[0035] An anti-collision sensor, installed on the side or front end of the boom of the bridge erecting machine, for detecting whether there are obstacles in front or on the side, and sending an obstacle signal when there are obstacles;

[0036] The abnormal status data includes that the wind speed value is greater than the set wind speed threshold, the inclination value is greater than the set inclination threshold, the weight value is greater than the set weight threshold, the height value is greater than the set height threshold, the stroke value is not within the set stroke threshold range, and the obstacle signal is received.

[0037] Optionally, the warning system further includes:

[0038] A positioning module, installed on the main body of the bridge erecting machine, for real-time sending of the position information of the bridge erecting machine;

[0039] A gun-type camera, installed on the side or front end of the boom of the bridge erecting machine, for acquiring and sending video information at the hook; the controller sends the video information to the display screen in the operation room for facilitating the observation of the hook position and the hoisting process.

[0040] In summary, the present application has at least the following beneficial effects:

[0041] 1. The purpose of setting the face recognition device, timer and unlocking structure is that since the operation room can only be unlocked after it is determined to be an operator and the set duration threshold is reached, it can compulsorily require the operator to conduct a comprehensive inspection of the bridge erecting machine before operation, thus avoiding the operator forgetting to inspect the bridge erecting machine, and reducing potential safety hazards.

[0042] 2. The purpose of setting the voice broadcaster is to timely remind the operator to lock the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is the structural block diagram of the present application;

[0044] Figure 2 is the structural block diagram of the sensing component;

[0045] Figure 3 is the structural schematic diagram of the unlocking structure.

[0046] Description of the reference numerals: 100, sensor assembly; 101, wind speed sensor; 102, inclination sensor; 103, weight sensor; 104, height sensor; 105, stroke sensor; 106, anti-collision sensor; 200, controller; 300, alarm; 400, face recognition device; 500, timer; 600, unlocking structure; 610, locking block; 620, locking plate; 630, locking rod; 640, driving cylinder; 650, return spring; 660, hook; 670, hanging ring; 680, pressure sensor; 690, voice broadcaster; 700, positioning module; 800, gun-type camera. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings in the embodiments of the present utility model Figure 1 - accompanying drawings Figure 3 , and clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0048] The embodiments of the present application disclose a perception and warning system for a bridge erection machine. Referring to Figure 1 , as an implementation of the warning system, the warning system may include a sensor assembly 100, a controller 200, an alarm 300, a face recognition device 400, a timer 500, and an unlocking structure 600. Among them, the sensor assembly 100 is installed on the bridge erection machine to detect the working state of the bridge erection machine and send status data. The controller 200 receives the status data and judges the status data. When the status data is abnormal, an alarm signal is sent. The alarm 300 responds to the alarm signal and performs an alarm action. The face recognition device 400 is installed on the bridge erection machine to collect face images and determine whether it is an operator based on the face images, and send a correct signal when it is an operator. After the controller 200 receives the correct signal, it controls the timer 500 to time and feedback the timing duration. The controller 200 judges the timing duration. After determining that the timing duration reaches the set duration threshold, an unlocking signal is sent, and the unlocking structure 600 responds to the unlocking signal to unlock the operation room. The duration threshold is the average duration of a comprehensive inspection of the bridge erection machine in history.

[0049] Referring to Figure 2 , the sensor assembly 100 may include an anemometer 101, an inclinometer 102, a load cell 103, an altitude sensor 104, a travel sensor 105, and an anti-collision sensor 106. Among them, the anemometer 101 is installed on the main body of the bridge erection machine to detect the ambient wind speed and send the wind speed value. The inclinometer 102 is installed on the boom of the bridge erection machine to detect the inclination angle of the boom and send the inclination value. The load cell 103 is installed on the hook of the bridge erection machine to detect the weight borne by the hook and send the weight value. The altitude sensor 104 is installed on the boom of the bridge erection machine to detect the height of the boom and send the height value. The travel sensor 105 is installed on the moving platform of the bridge erection machine to detect the moving travel of the moving platform and send the travel value. The anti-collision sensor 106 (similar to a ranging radar) is installed on the side or front end of the boom of the bridge erection machine to detect whether there are obstacles in the front or side, and send an obstacle signal when there are obstacles.

[0050] The abnormal status data may include that the wind speed value is greater than the set wind speed threshold, the inclination angle value is greater than the set inclination angle threshold, the weight value is greater than the set weight threshold, the height value is greater than the set height threshold, the travel value is not within the set travel threshold range, and an obstacle signal is received.

[0051] In addition, referring to Figure 1 , the warning system may further include a positioning module 700 and a gun-type camera 800. Among them, the positioning module 700 is installed on the main body of the bridge erecting machine and is used to send the position information of the bridge erecting machine in real time; the gun-type camera 800 is installed on the side or front end of the boom of the bridge erecting machine and is used to obtain and send the video information at the hook; the controller 200 sends the video information to the display screen in the operating room to facilitate observing the hook position and the hoisting process.

[0052] Referring to Figure 3 , the unlocking structure 600 may include a locking block 610, a locking plate 620, a locking rod 630, and a driving cylinder 640. Among them, the locking block 610 is fixedly connected to the door of the operating room, and the locking block 610 is provided with a locking groove and a locking hole, and the locking hole communicates with the locking groove. The locking plate 620 is slidably connected to the main body of the operating room and can be clamped in the locking groove. The cylinder body of the driving cylinder 640 is fixedly connected to the door of the operating room, and the piston rod is fixedly connected to the locking rod 630. The locking rod 630 can be clamped in the locking plate 620 through the locking hole. The driving cylinder 640 can be powered by an air pump.

[0053] The unlocking structure 600 may further include a return spring 650, a hook 660, and a hanging ring 670. Among them, the hook 660 is fixedly connected to one end of the locking plate 620 away from the locking block 610, the hanging ring 670 is fixedly connected to the main body of the operating room, and the hook 660 can be hooked on the hanging ring 670. One end of the return spring 650 is fixedly connected to the main body of the operating room, and the other end is fixedly connected to the locking plate 620 to realize the reset of the locking plate 620 after sliding.

[0054] In addition, referring to Figure 1 , the unlocking structure 600 may further include a pressure sensor 680 and a voice broadcaster 690. Among them, the pressure sensor 680 is installed on the inner wall of the locking groove and sends a pressure value after being pressed by the locking plate 620; after the controller 200 determines that the pressure value is greater than the set pressure threshold, it sends a locking signal; the driving cylinder 640 drives the locking rod 630 to be clamped in the locking plate 620 in response to the locking signal. The voice broadcaster 690 is installed on the main body of the operating room; when the operator leaves the operating room, the timer 500 starts timing and feeds back the induction duration; after the controller 200 determines that the induction duration reaches the set induction duration threshold and does not receive the pressure value, it controls the voice broadcaster 690 to broadcast the door locking information.

[0055] The implementation principle of this embodiment is:

[0056] After the face recognition device 400 captures the face image of the operator, the controller 200 controls the timer 500 to start timing after determining that the operator is correct. After the timing duration reaches the duration threshold, an unlocking signal is sent, and the driving cylinder 640 responds to the unlocking signal and contracts to drive the locking rod 630 to disengage from the locking plate 620. The locking plate 620 disengages from the locking block 610 under the elastic force of the return spring 650, and the operator hooks the hook 660 onto the hanging ring 670.

[0057] After the operator leaves the operation room, if the controller 200 fails to receive the pressure value after the sensing duration reaches the sensing duration threshold, it controls the voice broadcaster 690 to broadcast the door locking information.

[0058] The above are all the preferred embodiments of the present application, which do not limit the protection scope of the present application in turn. Any feature disclosed in this specification (including the abstract and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features.

Claims

1. A bridge erection machine perception warning system, characterized in that: include: A sensor assembly (100) is installed on the bridge erection machine and is used to detect the working status of the bridge erection machine and send status data; A controller (200) receives the status data and sends an alarm signal when the status data is abnormal; An alarm device (300) performs an alarm action in response to the alarm signal; A face recognition device (400) is installed on the bridge erection machine and is used to collect a face image and determine whether the person is an operator based on the face image, and send a correct signal if the person is an operator; A timer (500), after receiving the correct signal, the controller (200) controls the timer (500) to count time and feeds back the timing duration; The unlocking structure (600) sends an unlocking signal after the controller (200) determines that the timing duration reaches a set duration threshold, and the unlocking structure (600) unlocks the operating room in response to the unlocking signal; the duration threshold is the average duration of a historical comprehensive inspection of the bridge erecting machine.

2. A bridge erection machine sensing and warning system according to claim 1, characterized in that: The unlocking structure (600) comprises: A locking block (610) is mounted on the operating room door and is provided with a locking groove and a locking hole, wherein the locking hole is in communication with the locking groove; A locking plate (620) is slidably connected to the operating chamber body and can be snapped into the locking groove; A locking rod (630) is clamped into the locking plate (620) through the locking hole; A driving cylinder (640) has a piston rod fixedly connected to the locking rod (630), and a cylinder body mounted on the operating room door.

3. A bridge erection machine sensing and warning system according to claim 2, characterized in that: The unlocking structure (600) further includes: a reset spring (650), one end of which is connected to the locking plate (620) and the other end of which is connected to the operating chamber body, and is used to drive the locking plate (620) to reset; A hook (660) fixedly connected to an end of the locking plate (620) away from the locking block (610); The hanging ring (670) is fixedly connected to the operating room body, and the hook (660) can be hung on the hanging ring (670).

4. A bridge erection machine sensing and warning system according to claim 3, characterized in that: The unlocking structure (600) further includes: A pressure sensor (680) is mounted on the inner wall of the locking groove and transmits a pressure value after receiving pressure from the locking plate (620); the controller (200) transmits a locking signal after determining that the pressure value is greater than a set pressure threshold; and the driving cylinder (640) drives the locking rod (630) to be engaged in the locking plate (620) in response to the locking signal.

5. A bridge erection machine sensing and warning system according to claim 4, characterized in that: The unlocking structure (600) further includes: A voice announcer (690) is installed on the main body of the operating room; when the operator leaves the operating room, the timer (500) counts and feeds back the sensing duration; after the controller (200) determines that the sensing duration reaches a set sensing duration threshold and fails to receive the pressure value, it controls the voice announcer (690) to announce the door locking information.

6. A bridge erection machine sensing and warning system according to claim 1, characterized in that: The sensor assembly (100) comprises: A wind speed sensor (101) is installed on the main body of the bridge erecting machine and is used to detect the ambient wind speed and send the wind speed value; The inclination sensor (102) is installed on the boom of the bridge erecting machine and is used to detect the inclination angle of the boom and send the inclination value; A weight sensor (103) is installed on the hook of the bridge erecting machine and is used to detect the weight borne by the hook and send the weight value; A height sensor (104) is installed on the boom of the bridge erecting machine and is used to detect the height of the boom and send a height value; A travel sensor (105) is installed on the mobile platform of the bridge erection machine and is used to detect the travel of the mobile platform and send a travel value; An anti-collision sensor (106) is installed on the side or front end of the bridge crane boom, and is used to detect whether there is an obstacle in front or on the side, and send an obstacle signal when there is an obstacle; The status data abnormalities include the wind speed value being greater than the set wind speed threshold, the inclination angle value being greater than the set inclination angle threshold, the weight value being greater than the set weight threshold, the height value being greater than the set height threshold, the travel value being out of the set travel threshold range, and the obstacle signal being received.

7. A bridge erection machine sensing and warning system according to claim 1, characterized in that: The early warning system also includes: A positioning module (700) is installed on the main body of the bridge erecting machine and is used to send the position information of the bridge erecting machine in real time; The gun-type camera (800) is installed on the side or front end of the bridge crane boom and is used to obtain and send video information at the hook; the controller (200) sends the video information to a display screen in the operating room to facilitate observation of the hook position and the lifting process.

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