CN110775826A - Automatic identification system and method for dangerous source - Google Patents
Automatic identification system and method for dangerous source Download PDFInfo
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- CN110775826A CN110775826A CN201910860991.3A CN201910860991A CN110775826A CN 110775826 A CN110775826 A CN 110775826A CN 201910860991 A CN201910860991 A CN 201910860991A CN 110775826 A CN110775826 A CN 110775826A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides a danger source automatic identification system which comprises a crane (1), wherein the crane (1) is provided with a lifting hook (2), a binding rope (4) is hooked on the lifting hook (2), a heavy object (5) is bound on the binding rope (4), a binding rope tension testing module (3) is arranged on the lifting hook (2), the binding rope tension testing module (3) is connected to the binding rope (4) to obtain a tension value of the binding rope (4) in real time, a main control unit (8) is arranged on the crane (1), an indicator lamp (9) is further arranged on the crane (1), the binding rope tension testing module (3) is wirelessly connected with the main control unit (8), the binding rope tension testing module (3) transmits the tension value obtained in real time to the main control unit (8), and the main control unit (8) controls the indicator lamp (9) to be on or off. The invention detects and judges the rope by detecting the tension of the rope and gives an alarm to the staff at the same time.
Description
Technical Field
The invention relates to the technical field of danger identification, in particular to a system and a method for automatically identifying a danger source.
Background
The portal crane is widely applied to large-scale engineering construction and mainly comprises a hoisting mechanism, an operating mechanism, a luffing mechanism, a slewing mechanism, a metal structure and the like. The hoisting mechanism is a basic working mechanism of the crane, mostly consists of a hanging system and a winch, and also has a function of lifting a heavy object through a hydraulic system, the hanging system and the heavy object are fixed through a hook cable, namely the heavy object is bound by using a rope, the rope is hooked by using a lifting hook in the hanging system of the crane, loss is generated due to frequent use of the rope, the rope is broken at any time, if the rope is broken without early warning, the heavy object is damaged, and workers working below the rope are harmed, so that the rope needs to be detected in real time and effectively early warning is required to be performed on the workers, for example, a construction engineering danger source identification management system with Chinese patent publication No. CN108573331A and a use method thereof comprise a monitoring device, a danger source identification server, a storage and a management client, wherein the monitoring device is connected with the danger source identification server, and the danger source identification server is respectively connected with the management client and the storage. According to the invention, the danger source of the construction site of the building engineering is monitored by the monitoring equipment, the danger source data is processed by the danger source identification server, the danger source is displayed by the display screen, and the construction site personnel are supervised and corrected in time. However, the invention does not effectively detect the rope fracture and warn personnel, has potential safety hazard and cannot well ensure the personal safety of the workers.
Disclosure of Invention
The invention solves the problems that the prior art is lack of detection on rope fracture and early warning on personnel, provides a hazard source automatic identification system, detects and judges the rope by detecting the tension of the rope, and simultaneously alarms the staff.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a danger source automatic identification system, includes the hoist, and the hoist is equipped with the lifting hook, and the lifting hook has put and ties up the rope, ties up the rope and has binded the heavy object, be provided with on the lifting hook and tie up rope tension test module, tie up rope tension test module and connect on tying up the rope, acquire the tension value of tying up the rope in real time, be equipped with the master control unit on the hoist, still be equipped with the pilot lamp on the hoist, tie up rope tension measurement module and master control unit wireless connection, tie up on rope tension test module transmits the tension value that obtains in real time to the master control unit, the bright of master control unit control pilot lamp goes out.
When the heavy object is by hoist lifting and removal, the rope binding stress point is used in the lifting hook, rope binding tension test module sets up on the stress action point, rope binding tension test module connects the rope binding, measure the real-time tension value of rope binding, and transmit real-time tension value to the main control unit, establish the tension value scope in the main control unit, the tension value scope is used for judging whether the operating condition of rope binding needs the early warning, if need the early warning, the main control unit then controls the pilot lamp and lights, carry out effective early warning to the staff.
Preferably, the main control unit is internally provided with a tension value range, the tension value range is divided into a safety range, an early warning range and a danger range according to the physical characteristics of the binding rope, the indicator lamp can emit red light and yellow light, the indicator lamp emits red light corresponding to the danger range, the indicator lamp emits yellow light corresponding to the early warning range, and the three ranges are used for monitoring the binding rope more accurately.
Preferably, the lifting hook is provided with a height measuring module, an image recognition module and a distance measuring module, the height measuring module, the image recognition module and the distance measuring module are wirelessly connected with the main control unit, the crane is provided with a matched safety helmet, the safety helmet is provided with a signal transmitting device and an alarm device, the alarm device is wirelessly connected with the main control unit, the signal transmitting device transmits the position signal to the distance measuring module,
the height measuring module measures the height H of the lifting hook from the ground in real time and transmits the height H to the main control unit;
an image recognition module for recognizing the maximum width D of the heavy object and transmitting the maximum width D to the main control unit
The distance measuring module receives the position signal, measures the distance X between the safety helmet and the lifting hook in real time and transmits the distance X to the main control unit,
the main control unit controls the alarm device to give an alarm.
The safety helmet is matched for use, the signal transmitting device arranged on the safety helmet monitors the real-time position of ground workers, and the alarm device arranged on the safety helmet effectively alarms the ground workers.
Preferably, the signal transmitting device transmits the position signal to the distance measuring module by transmitting the position signal to the distance measuring module through infrasonic waves, and the distance measuring module receives the infrasonic waves and measures the distance X between the safety helmet and the lifting hook in real time.
Preferably, the alarm device is a voice alarm device.
Preferably, the signal transmitting device and the alarm device are powered by solar energy.
The invention also provides a method for automatically identifying the hazard source, which adopts any one of the above-mentioned systems for automatically identifying the hazard source, and comprises the following steps:
s1: the binding rope tension measuring module measures the binding rope tension in real time and transmits the binding rope tension to the main control unit;
s2: the main control unit receives the tension value and judges whether the tension value is in a safety range, if the tension value is in the safety range, the crane works normally, and if the tension value is not in the safety range, S3 is carried out;
s3: the main control unit judges whether the tension value is in a dangerous range, if so, the crane stops working, the main control unit controls the indicator light to emit red light, the main control unit controls the alarm device to give an alarm, and if not, S4 is carried out;
s4: the main control unit controls the indicator light to emit yellow light, the main control unit judges whether the safety helmet is in a safe distance with the lifting hook, if so, the crane works normally, and if not, S5 is carried out;
s5: the main control unit controls the alarm device to alarm, and the crane stops working.
The method comprises the steps of judging the current working state of the binding rope by using a measured tension value, and judging whether alarming processing is needed or not by measuring the real-time distance between a ground worker and a lifting hook if the tension value is judged to be in an early warning state, so that the crane can normally work and can early warn the ground worker in real time.
Preferably, the process of the main control unit determining whether the safety helmet is a safe distance from the lifting hook in S4 includes,
s401: the main control unit receives the height H transmitted by the height measuring module; the main control unit receives the maximum width D transmitted by the image recognition module;
s402: the main control unit utilizes the height H and the maximum width D and calculates a formula according to the safety distance:
solving a safety distance L;
s403: the main control unit receives the distance X transmitted by the distance measuring module;
s404: the main control unit compares the safe distance L with the distance X, if the distance X is greater than the safe distance L, the alarm device does not alarm, otherwise, the alarm device does not alarm, and S5 is performed.
Preferably, the maximum width D is provided with an early warning parameter a, and the safe distance calculation formula is as follows:
early warning parameter a is 1.2, and the heavy object ties up the rope fracture in real-time motion process, and the heavy object can produce the displacement at the process of whereabouts, and the effect that sets up early warning parameter a is, and increase safe distance ensures at ground staff's safety.
The invention has the following beneficial effects: (1) the binding rope tension measuring module is arranged on the lifting hook to measure the tension value, so that the working state of the binding rope is monitored in real time, and the safety of ground workers is guaranteed while the safety of heavy objects is protected. (2) Through the setting of supporting safety helmet, detect safe distance, further carry out the early warning to ground staff, be favorable to protecting ground staff's personal safety.
Drawings
Fig. 1 is a system configuration diagram of the embodiment.
Fig. 2 is a safe distance geometry calculation diagram in the embodiment.
Fig. 3 is a flow chart of an embodiment.
Wherein: 1. the device comprises a crane 2, a lifting hook 3, a binding rope tension testing module 4, a binding rope 5, a heavy object 6, a height measuring module 7, a distance measuring module 8, a main control unit 9, an indicator light 10, a safety helmet 11, a signal transmitting device 12, an alarm device 13 and an image recognition module
Detailed Description
Example (b):
the utility model provides a danger source automatic identification system, refer to fig. 1, including hoist 1, hoist 1 is equipped with lifting hook 2, lifting hook 2 hook has been put and has been tied up rope 4, it has heavy object 5 to tie up rope 4 and bind, be provided with on lifting hook 2 and tie up rope tension test module 3, it connects on tying up rope 4 to tie up rope tension test module 3, acquire the tension value of tying up rope 4 in real time, be equipped with main control unit 8 on hoist 1, still be equipped with pilot lamp 9 on the hoist 1, tie up rope tension measurement module 3 and main control unit 8 wireless connection, it transmits the tension value that obtains in real time to tie up rope tension test module 3 on main control unit 8, the bright of main control unit 8 control pilot lamp 9 goes out.
When the heavy object is by hoist lifting and removal, the rope binding stress point is used in the lifting hook, rope binding tension test module sets up on the stress action point, rope binding tension test module connects the rope binding, measure the real-time tension value of rope binding, and transmit real-time tension value to the main control unit, establish the tension value scope in the main control unit, the tension value scope is used for judging whether the operating condition of rope binding needs the early warning, if need the early warning, the main control unit then controls the pilot lamp and lights, carry out effective early warning to the staff.
The main control unit 8 is internally provided with a tension value range, the tension value range is divided into a safety range, an early warning range and a danger range according to the physical characteristics of the binding rope 4, the indicating lamp 9 can emit red light and yellow light, the indicating lamp emits the red light corresponding to the danger range, the indicating lamp emits the yellow light corresponding to the early warning range, and the three ranges are used for more accurately monitoring the binding rope.
The lifting hook 2 is provided with a height measuring module 6, an image recognition module 13 and a distance measuring module 7, the height measuring module 6, the image recognition module 13 and the distance measuring module 7 are wirelessly connected with a main control unit 8, the crane 1 is provided with a matched safety helmet 10, the safety helmet is provided with a signal transmitting device 11 and an alarm device 12, the alarm device 12 is wirelessly connected with the main control unit 8, the signal transmitting device 11 transmits a position signal to the distance measuring module 7,
the height measuring module 6 measures the height H of the lifting hook 2 from the ground in real time and transmits the height H to the main control unit 8;
an image recognition module 13 for recognizing the maximum width D of the weight 5 and transmitting the maximum width D to the main control unit 8
The distance measuring module 7 receives the position signal, measures the distance X between the safety helmet 10 and the lifting hook 2 in real time, transmits the distance X to the main control unit 8,
the main control unit 8 controls the alarm device 12 to give an alarm.
The safety helmet is matched for use, the signal transmitting device arranged on the safety helmet monitors the real-time position of ground workers, and the alarm device arranged on the safety helmet effectively alarms the ground workers.
The signal transmitting device 11 transmits the position signal to the distance measuring module 7, and transmits the position signal to the distance measuring module 7 through the infrasonic wave, and the distance measuring module 7 receives the infrasonic wave to measure the distance X between the safety helmet 10 and the lifting hook 2 in real time.
The alarm device 12 is a voice alarm device.
The signal emitting device 11 and the alarm device 12 are powered by solar energy.
The embodiment also provides a method for automatically identifying a hazard source, which adopts the above-mentioned system for automatically identifying a hazard source, and with reference to fig. 3, includes the following steps:
s1: the binding rope tension measuring module 3 measures the binding rope tension in real time and transmits the binding rope tension to the main control unit 8;
s2: the main control unit 8 receives the tension value and judges whether the tension value is in a safety range, if the tension value is in the safety range, the crane 1 works normally, and if the tension value is not in the safety range, S3 is carried out;
s3: the main control unit 8 judges whether the tension value is in a dangerous range, if so, the crane 1 stops working, the main control unit 8 controls the indicator light 9 to emit red light, the main control unit 8 controls the alarm device 12 to give an alarm, and if not, the S4 is carried out;
s4: the main control unit 8 controls the indicator light 9 to emit yellow light, the main control unit 8 judges whether the safety helmet 10 is in a safe distance with the lifting hook 2, and the process of judging whether the safety helmet 10 is in the safe distance with the lifting hook 2 is as follows:
s401: the main control unit 8 receives the height H transmitted by the height measuring module 6; the main control unit 8 receives the maximum width D transmitted from the image recognition module 13;
s402: the main control unit 8 utilizes the height H and the maximum width D, the maximum width D is provided with an early warning parameter a, referring to fig. 2, the safe distance calculation formula obtained by utilizing the triangle law is as follows:
early warning parameter a is 1.2, and the heavy object ties up the rope fracture in real-time motion process, and the heavy object can produce the displacement at the process of whereabouts, and the effect that sets up early warning parameter a is, and increase safe distance ensures at ground staff's safety.
S403: the main control unit 8 receives the distance X transmitted by the distance measuring module 7;
s404: the main control unit 8 compares the safe distance L with the distance X, and if the distance X is greater than the safe distance L, it is determined that the distance is the safe distance, and the crane 1 normally operates, otherwise, it is determined that the distance is not the safe distance, and S5 is performed.
S5: the main control unit 8 controls the alarm device 12 to give an alarm, and the crane 1 stops working.
The method comprises the steps of judging the current working state of the binding rope by using a measured tension value, and judging whether alarming processing is needed or not by measuring the real-time distance between a ground worker and a lifting hook if the tension value is judged to be in an early warning state, so that the crane can normally work and can early warn the ground worker in real time.
The invention has the following advantages:
(1) the binding rope tension measuring module is arranged on the lifting hook to measure the tension value, so that the working state of the binding rope is monitored in real time, and the safety of ground workers is guaranteed while the safety of heavy objects is protected.
(2) Through the setting of supporting safety helmet, detect safe distance, further carry out the early warning to ground staff, be favorable to protecting ground staff's personal safety.
Claims (9)
1. The utility model provides a danger source automatic identification system, includes hoist (1), hoist (1) are equipped with lifting hook (2), and lifting hook (2) hook has been put and has been tied up rope (4), and it has heavy object (5) to tie up rope (4) to bind, characterized by, be provided with on lifting hook (2) and tie up rope tension test module (3), tie up rope tension test module (3) and connect on tying up rope (4), acquire the tension value of tying up rope (4) in real time, be equipped with main control unit (8) on hoist (1), still be equipped with pilot lamp (9) on hoist (1), tie up rope tension measurement module (3) and main control unit (8) wireless connection, on tie up rope tension test module (3) transmits the tension value that obtains in real time to main control unit (8), main control unit (8) control pilot lamp (9) bright.
2. A system for automatic identification of a source of danger according to claim 1, characterized in that the main control unit (8) is provided with a tension value range, which is divided into a safety range, a pre-warning range and a danger range according to the physical properties of the binding-rope (4), and the indicator light (9) is capable of emitting red and yellow light.
3. The automatic hazard source identification system according to claim 2, wherein the lifting hook (2) is provided with a height measurement module (6), an image identification module (13) and a distance measurement module (7), the height measurement module (6), the image identification module (13) and the distance measurement module (7) are wirelessly connected with the main control unit (8), the crane (1) is provided with a matched safety helmet (10), the safety helmet is provided with a signal transmitting device (11) and an alarm device (12), the alarm device (12) is wirelessly connected with the main control unit (8), the signal transmitting device (11) transmits a position signal to the distance measurement module (7),
the height measuring module (6) measures the height H of the lifting hook (2) from the ground in real time and transmits the height H to the main control unit (8);
an image recognition module (13) for recognizing the maximum width D of the weight (5) and transmitting the maximum width D to the main control unit (8)
The distance measuring module (7) receives the position signal, measures the distance X between the safety helmet (10) and the lifting hook (2) in real time, and transmits the distance X to the main control unit (8),
the main control unit (8) controls the alarm device (12) to alarm.
4. A hazard source automatic identification system according to claim 3, wherein the signal emitting device (11) emits the position signal to the distance measuring module (7) by transmitting the position signal to the distance measuring module (7) by infrasonic waves, and the distance measuring module (7) receives the infrasonic waves to measure the distance X between the safety helmet (10) and the crane hook (2) in real time.
5. A system for automatic identification of a source of danger as claimed in claim 3 or 4, characterized in that the alarm device (12) is a voice alarm device.
6. A system for automatic identification of a source of danger according to claim 3 or 4 or 5, characterized in that the signal emitting means (11) and the alarm means (12) are powered by solar energy.
7. A method for automatically recognizing a source of danger using the system for automatically recognizing a source of danger according to claim 3 or 4 or 5 or 6, comprising the steps of:
s1: the binding rope tension measuring module (3) measures the binding rope tension in real time and transmits the binding rope tension to the main control unit (8);
s2: the main control unit (8) receives the tension value and judges whether the tension value is in a safety range, if the tension value is in the safety range, the crane (1) works normally, and if the tension value is not in the safety range, S3 is carried out;
s3: the main control unit (8) judges whether the tension value is in a dangerous range, if so, the crane (1) stops working, the main control unit (8) controls the indicator lamp (9) to emit red light, the main control unit (8) controls the alarm device (12) to give an alarm, and if not, S4 is carried out;
s4: the main control unit (8) controls the indicator lamp (9) to emit yellow light, the main control unit (8) judges whether the safety helmet (10) is in a safe distance with the lifting hook (2), if so, the crane (1) works normally, and if not, S5 is carried out;
s5: the main control unit (8) controls the alarm device (12) to alarm, and the crane (1) stops working.
8. The method of claim 7, wherein the step of the main control unit (8) determining whether the safety helmet (10) is a safe distance from the lifting hook (2) in the step S4 comprises,
s401: the main control unit (8) receives the height H transmitted by the height measuring module (6); the main control unit (8) receives the maximum width D transmitted by the image recognition module (13);
s402: the main control unit (8) uses the height H and the maximum width D according to a safe distance calculation formula:
solving a safety distance L;
s403: the main control unit (8) receives the distance X transmitted by the distance measuring module (7);
s404: the main control unit (8) compares the safe distance L with the distance X, if the distance X is larger than the safe distance L, the safety distance is judged, the alarm device (12) does not give an alarm, otherwise, the safety distance is judged not to be the safe distance, and S5 is carried out.
9. The method for automatically identifying a hazard according to claim 8, wherein if the maximum width D is provided with an early warning parameter a, the safety distance is calculated by the formula:
and the early warning parameter a is 1.2.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180787A (en) * | 2020-09-27 | 2021-01-05 | 宋鹏 | Based on municipal works construction project wisdom building site management system |
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