CN111189402A - Safety monitoring and early warning method and system for movable stand - Google Patents
Safety monitoring and early warning method and system for movable stand Download PDFInfo
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- CN111189402A CN111189402A CN201911261620.XA CN201911261620A CN111189402A CN 111189402 A CN111189402 A CN 111189402A CN 201911261620 A CN201911261620 A CN 201911261620A CN 111189402 A CN111189402 A CN 111189402A
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- stand unit
- early warning
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- stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention provides a safety monitoring and early warning method and a safety monitoring and early warning system for a movable stand, which relate to the technical field of stage safety, and the method comprises the following steps: s1: dividing the movable stand into at least one independent stand unit; s2: generating a predetermined loading threshold for each individual stand unit; s3: monitoring the deformation of the independent stand unit in real time; s4: calculating a load value of the current independent stand unit corresponding to the deformation of the current independent stand unit; s5: judging whether the load value of the current independent stand unit is smaller than a preset load threshold value of the current independent stand unit; if yes, return to step S3; otherwise, an early warning signal is sent out. The safety monitoring and early warning method and the system for the movable stand are convenient to execute, stable and reliable, can acquire the load condition of the movable stand without applying external force on a measured object based on the laser ranging principle, are high in identification precision, convenient to install in the later period, strong in practicability and suitable for popularization.
Description
Technical Field
The invention relates to the technical field of stage safety,
in particular, the invention relates to a safety monitoring and early warning method and a safety monitoring and early warning system for a movable stand.
Background
At present, with the progress of social and cultural causes, more and more small performances show outbreak situations, and the performance places are often random, such as school playgrounds, community squares and commercial streets, so that the demand of event stands is considerable. The traditional movable stand is generally of a stepped structure formed by multiple layers of steps, a plurality of folding seats are arranged on each layer for audiences to sit, the bottom of the movable stand is provided with a movable roller which can be moved according to the arrangement requirement of a field, the movable stand is generally designed into a drawer type structure in order to save storage space and facilitate transportation, and the bottom of the movable stand is provided with a motor roller which can be used for unfolding the stand layer by layer. The movable stand is designed by adopting modularization, the stand is split into a plurality of modules capable of moving independently, the demand of quick construction and transportation can be met, the integrity of the stand is sacrificed, the reasonability of stand load distribution needs to be considered after repeated construction, the traditional movable stand is basically not provided with a related monitoring and early warning system, great potential safety hazards exist, and the risk of casualties caused by collapse of the movable stand is possibly caused.
Therefore, how to design a safety monitoring and early warning method or system for a movable stand becomes a problem which needs to be solved urgently at present.
Disclosure of Invention
The invention aims to provide the safety monitoring and early warning method for the movable stand, which is convenient to execute, stable and reliable, high in identification precision, convenient to install in the later period, strong in practicability and suitable for popularization, and can acquire the load condition of the movable stand without applying external force on a measured object based on the laser ranging principle.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a safety monitoring and early warning method for a movable stand comprises the following steps:
s1: dividing the movable stand into at least one independent stand unit;
s2: generating a predetermined loading threshold for each individual stand unit;
s3: monitoring the deformation of the independent stand unit in real time;
s4: calculating a load value of the current independent stand unit corresponding to the deformation of the current independent stand unit;
s5: judging whether the load value of the current independent stand unit is smaller than a preset load threshold value of the current independent stand unit; if yes, return to step S3; otherwise, an early warning signal is sent out.
Preferably, in the step S1, the movable stands are divided according to the installation of the mounting beams of the movable stands, and the independent stand units are in one-to-one correspondence with the mounting beams supporting the independent movable units.
Preferably, in step S2, the predetermined load threshold value for each individual stand unit is generated by integrating the characteristics of the mounting beam corresponding to each individual stand unit and the position of the individual stand unit.
Preferably, in step S3, the laser distance measuring sensors are arranged in a dot matrix to detect the distance between the stage surfaces of the movable stands, and the deformation of each individual stand unit is monitored in real time.
As a preferable aspect of the present invention, before the step S4 is executed, the objects of different masses are placed on each of the individual stand units in advance, the deformation amounts of the individual stand units caused by the respective masses on each of the individual stand units are obtained, and are stored in the storage table one by one.
Preferably, in step S4, the laser ranging sensor measurement data is acquired, the current deformation of the stand-alone unit is obtained, the current deformation of the stand-alone unit is calculated, and the corresponding current stand-alone unit load value is read from the storage table.
Preferably, in step S5, each individual stand unit is numbered, and the real-time load value of the individual stand unit is not less than the predetermined load threshold of the individual stand unit, the number information of the individual stand unit is added to the warning signal.
On the other hand, the invention also provides a safety monitoring and early warning system for the movable stand, which comprises:
a unit dividing module;
a predetermined load generating module;
a monitoring module;
a calculation module;
a judgment module;
an early warning module;
the unit dividing module divides the movable stand into at least one independent stand unit, the scheduled load generating module generates a scheduled load threshold value of each independent stand unit, the monitoring module monitors the deformation of the independent stand unit in real time, the calculating module calculates a current independent stand unit load value corresponding to the deformation of the current independent stand unit, the judging module judges whether the current independent stand unit load value is smaller than the scheduled load threshold value of the current independent stand unit, and if the current independent stand unit load value is not smaller than the scheduled load threshold value of the current independent stand unit, the early warning module is informed to send out an early warning signal.
Preferably, the safety monitoring and early warning system for the movable stand further comprises a storage module, wherein before the load value of the current independent stand unit corresponding to the deformation of the current independent stand unit is calculated by the calculation module, the object with different quality is placed on each independent stand unit in advance, the deformation of the independent stand unit caused by various qualities on each independent stand unit is obtained, and data storage is performed one by one.
Preferably, the safety monitoring and early warning system for the movable stand further comprises a numbering module, wherein the numbering module is used for numbering each independent stand unit, and when the judging module judges that the real-time load value of the independent stand unit is not smaller than the preset load threshold value of the independent stand unit, the numbering module sends the numbering information of the independent stand unit to the early warning module, so that the numbering information of the independent stand unit is added into the early warning signal.
Preferably, in the safety monitoring and early warning system for the movable stand, the unit dividing module is connected with the numbering module.
The safety monitoring and early warning method and system for the movable stand have the beneficial effects that: the implementation is convenient, and is reliable and stable, need not to exert external force alright in order to obtain the load condition of activity stand on the measured object based on laser rangefinder principle, and the discernment precision is high to make things convenient for the later stage to install additional, the practicality is strong, is fit for promoting.
Drawings
FIG. 1 is a schematic flow chart of a safety monitoring and early warning method for a movable stand according to the present invention;
fig. 2 is a schematic diagram of module connection of a safety monitoring and early warning system for a movable stand according to the present invention.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and steps set forth in these embodiments and steps do not limit the scope of the invention unless specifically stated otherwise.
Meanwhile, it should be understood that the flows in the drawings are not merely performed individually for convenience of description, but a plurality of steps are performed alternately with each other.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
Example one
As shown in fig. 1, which is only one embodiment of the present invention, the present invention provides a safety monitoring and early warning method for a movable stand, including the following steps:
s1: dividing the movable stand into at least one independent stand unit;
in practice, the movable stands are divided according to the installation of the installation beams of the movable stands, preferably, the independent stand units are divided according to the installation beams and the stand surfaces above the installation supporting beams on the installation beams, and the independent stand units correspond to the installation beams supporting the independent movable units one by one.
In addition, in the movable stand, the independent two-layer movable stand must be divided into two or more different independent stand units, and the movably connected two-layer movable stand must also be divided into two or more different independent stand units, so that the influence between the two independent stand units is reduced, and the independence of each independent stand unit is ensured.
S2: generating a predetermined loading threshold for each individual stand unit;
here, the predetermined load threshold value of each individual stand unit may be the same or different, and should be generated by combining the characteristics of the mounting beam corresponding to each individual stand unit and the position where the individual stand unit is located, the predetermined load threshold value of each individual stand unit is small if the individual stand unit of the movable stand having a long moving distance or the individual stand unit having a simple mounting structure, and the predetermined load threshold value of the individual stand unit is large if the individual stand unit having a stable mounting structure is mounted.
If the mounting beam is thin or the independent stand unit is supported by wood, the preset load threshold value of the independent stand unit is small; and on the contrary, if the mounting beam is thicker or the independent stand unit supported by the prefabricated plate is adopted, the preset load threshold value of the independent stand unit is larger.
In any case, the preset load threshold value of the independent stand unit is far smaller than the maximum load of the independent stand unit, and the early warning is timely carried out before the independent stand unit is substantially damaged, so that an early warning space is reserved.
S3: monitoring the deformation of the independent stand unit in real time;
the laser ranging sensors are arranged in a dot matrix mode, the distance of the stage surface of the movable stand is detected, and the deformation of each independent stand unit is monitored in real time.
A plurality of laser ranging sensors are distributed below each independent stand unit, the number of the laser ranging sensors is required to be more than 3, and the laser ranging sensors are used for measuring the deformation of the movable stand surface.
The laser ranging sensor adopts a non-contact measurement principle, does not need to apply external force on a measured object, and has high detection accuracy.
S4: calculating a load value of the current independent stand unit corresponding to the deformation of the current independent stand unit;
in fact, the PC end is preferably adopted for calculation, the PC end is connected with the laser ranging sensor and used for receiving the measurement data of the laser ranging sensor, analyzing and processing the data, and determining the integral reference threshold corresponding to the instant deformation data based on the distribution condition of the instant deformation data.
Before step S4 is executed, objects of different masses are placed on each individual stand unit in advance, deformation quantities of the individual stand units caused by the masses on each individual stand unit are obtained, and the deformation quantities are stored in a storage table one by one. In a word, before actually monitoring the safety of the stand, firstly, the method needs to be calibrated, a load with a specified weight is placed on the movable stand surface, the direct relation between the deformation of the movable stand and the load is tested, and after the data is stored, the step is not needed to be carried out subsequently.
And after the data is stored, the PC terminal acquires the measurement data of the laser ranging sensor, obtains the deformation of the current independent stand unit, calculates the deformation of the current independent stand unit, and reads the corresponding load value of the current independent stand unit from the storage table.
S5: judging whether the load value of the current independent stand unit is smaller than a preset load threshold value of the current independent stand unit; if yes, return to step S3; otherwise, an early warning signal is sent out.
Certainly, when step S5 is executed, each individual stand unit is numbered, and the real-time load value of the individual stand unit is not less than the predetermined load threshold value of the individual stand unit, then the number information of the individual stand unit is added to the warning signal, which is convenient for the staff to maintain or evacuate the crowd in time.
The safety monitoring and early warning method for the movable stand is convenient to execute, stable and reliable, can acquire the load condition of the movable stand without applying external force on a measured object based on the laser ranging principle, is high in identification precision, convenient to install in the later period, strong in practicability and suitable for popularization.
In a second embodiment, as shown in fig. 2, the invention further provides a safety monitoring and early warning system for a movable stand, which includes:
a unit dividing module;
a predetermined load generating module;
a monitoring module;
a calculation module;
a judgment module;
an early warning module;
the unit dividing module divides the movable stand into at least one independent stand unit, the scheduled load generating module generates a scheduled load threshold value of each independent stand unit, the monitoring module monitors the deformation of the independent stand unit in real time, the calculating module calculates a current independent stand unit load value corresponding to the deformation of the current independent stand unit, the judging module judges whether the current independent stand unit load value is smaller than the scheduled load threshold value of the current independent stand unit, and if the current independent stand unit load value is not smaller than the scheduled load threshold value of the current independent stand unit, the early warning module is informed to send out an early warning signal.
The invention relates to a safety monitoring and early warning system for a movable stand, which further comprises a storage module, wherein before the load value of a current independent stand unit corresponding to the deformation of the current independent stand unit is calculated by a calculation module, objects with different qualities are placed on each independent stand unit in advance to obtain the deformation of the independent stand unit caused by various qualities on each independent stand unit, and data storage is carried out one by one.
The invention relates to a safety monitoring and early warning system for a movable stand, which further comprises a numbering module used for numbering each independent stand unit, wherein when the judging module judges that the real-time load value of the independent stand unit is not less than the preset load threshold value of the independent stand unit, the numbering module sends the number information of the independent stand unit to the early warning module, so that the number information of the independent stand unit is added into an early warning signal.
And the unit dividing module is connected with the numbering module, and when the unit dividing module divides the movable grandstand into at least one independent grandstand unit, the numbering module is included to finish numbering each independent grandstand unit.
The safety monitoring and early warning method and the system for the movable stand are convenient to execute, stable and reliable, can acquire the load condition of the movable stand without applying external force on a measured object based on the laser ranging principle, are high in identification precision, convenient to install in the later period, strong in practicability and suitable for popularization.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. A safety monitoring and early warning method for a movable stand is characterized by comprising the following steps:
s1: dividing the movable stand into at least one independent stand unit;
s2: generating a predetermined loading threshold for each individual stand unit;
s3: monitoring the deformation of the independent stand unit in real time;
s4: calculating a load value of the current independent stand unit corresponding to the deformation of the current independent stand unit;
s5: judging whether the load value of the current independent stand unit is smaller than a preset load threshold value of the current independent stand unit; if yes, return to step S3; otherwise, an early warning signal is sent out.
2. The safety monitoring and early warning method for the movable stand according to claim 1, characterized in that:
when step S1 is executed, the movable stands are divided according to the installation of the mounting beams of the movable stands, and the independent stand units correspond to the mounting beams supporting the independent movable units one to one.
3. The safety monitoring and early warning method for the movable stand according to claim 2, characterized in that:
when step S2 is executed, the characteristics of the mounting beam corresponding to each individual stand unit and the position where the individual stand unit is located are integrated to generate a predetermined load threshold for each individual stand unit.
4. The safety monitoring and early warning method for the movable stand according to claim 1, characterized in that:
and step S3 is executed, laser ranging sensors are adopted and arranged in a dot matrix mode to detect the distance of the stage surface of the movable stand and monitor the deformation of each independent stand unit in real time.
5. The safety monitoring and early warning method for the movable stand according to claim 4, characterized in that:
before step S4 is executed, objects of different masses are placed on each individual stand unit in advance, deformation quantities of the individual stand units caused by the masses on each individual stand unit are obtained, and the deformation quantities are stored in a storage table one by one.
6. The safety monitoring and early warning method for the movable stand according to claim 5, characterized in that:
and step S4, acquiring the measurement data of the laser ranging sensor, obtaining the deformation of the current independent stand unit, calculating the deformation of the current independent stand unit, and reading the corresponding load value of the current independent stand unit in a storage table.
7. The safety monitoring and early warning method for the movable stand according to claim 1, characterized in that:
when step S5 is executed, each independent stand unit is numbered, and the real-time load value of the independent stand unit is not less than the predetermined load threshold value of the independent stand unit, the number information of the independent stand unit is added to the warning signal.
8. The utility model provides a movable stand safety monitoring early warning system which characterized in that includes:
a unit dividing module;
a predetermined load generating module;
a monitoring module;
a calculation module;
a judgment module;
an early warning module;
the unit dividing module divides the movable stand into at least one independent stand unit, the scheduled load generating module generates a scheduled load threshold value of each independent stand unit, the monitoring module monitors the deformation of the independent stand unit in real time, the calculating module calculates a current independent stand unit load value corresponding to the deformation of the current independent stand unit, the judging module judges whether the current independent stand unit load value is smaller than the scheduled load threshold value of the current independent stand unit, and if the current independent stand unit load value is not smaller than the scheduled load threshold value of the current independent stand unit, the early warning module is informed to send out an early warning signal.
9. The movable stand safety monitoring and early warning system of claim 8, wherein:
the storage module is used for placing objects with different qualities on each independent stand unit in advance before the calculation module calculates the load value of the current independent stand unit corresponding to the deformation of the current independent stand unit, acquiring the deformation of the independent stand unit caused by various qualities on each independent stand unit, and storing data one by one.
10. The movable stand safety monitoring and early warning system of claim 8, wherein:
the number module is used for numbering each independent stand unit, and when the judgment module judges that the real-time load value of each independent stand unit is not less than the preset load threshold value of the independent stand unit, the number module sends the number information of the independent stand unit to the early warning module, so that the number information of the independent stand unit is added into the early warning signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261620.XA CN111189402A (en) | 2019-12-10 | 2019-12-10 | Safety monitoring and early warning method and system for movable stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261620.XA CN111189402A (en) | 2019-12-10 | 2019-12-10 | Safety monitoring and early warning method and system for movable stand |
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| CN111189402A true CN111189402A (en) | 2020-05-22 |
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| CN201911261620.XA Pending CN111189402A (en) | 2019-12-10 | 2019-12-10 | Safety monitoring and early warning method and system for movable stand |
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| CN103233602A (en) * | 2013-05-03 | 2013-08-07 | 浙江大丰实业有限公司 | Design method of annular multifunctional three-dimensional stage |
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| CN109059854A (en) * | 2018-08-22 | 2018-12-21 | 上海建工四建集团有限公司 | For the state monitoring apparatus of steel platform, status monitoring and regulator control system and method |
| CN109141251A (en) * | 2018-08-17 | 2019-01-04 | 浙江大丰实业股份有限公司 | Stage fixed mechanism height detection platform |
| CN109916326A (en) * | 2019-04-11 | 2019-06-21 | 杭州友邦演艺设备有限公司 | A kind of stage Payload Monitoring And Control method for early warning |
| CN110362872A (en) * | 2019-06-18 | 2019-10-22 | 中建一局集团建设发展有限公司 | A kind of three-dimensional positioning high-accuracy control method for hanging grandstand |
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2019
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07318341A (en) * | 1994-05-20 | 1995-12-08 | Yotaro Hatamura | Rectilinear motion apparatus equipped with deformation-amount detection means and with displacement scale |
| CN102967401A (en) * | 2012-11-15 | 2013-03-13 | 北京筑福建设工程有限责任公司 | Real-time overload security monitoring and alarming system for old structure |
| CN103191569A (en) * | 2013-04-23 | 2013-07-10 | 浙江大丰实业有限公司 | Stage monitoring system |
| CN103233602A (en) * | 2013-05-03 | 2013-08-07 | 浙江大丰实业有限公司 | Design method of annular multifunctional three-dimensional stage |
| CN109029270A (en) * | 2018-08-17 | 2018-12-18 | 浙江大丰实业股份有限公司 | Stage table top displacement monitoring platform |
| CN109141251A (en) * | 2018-08-17 | 2019-01-04 | 浙江大丰实业股份有限公司 | Stage fixed mechanism height detection platform |
| CN109059854A (en) * | 2018-08-22 | 2018-12-21 | 上海建工四建集团有限公司 | For the state monitoring apparatus of steel platform, status monitoring and regulator control system and method |
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| CN110362872A (en) * | 2019-06-18 | 2019-10-22 | 中建一局集团建设发展有限公司 | A kind of three-dimensional positioning high-accuracy control method for hanging grandstand |
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Application publication date: 20200522 |