WO2017095024A1

WO2017095024A1 - Method, apparatus, server, and computer program for monitoring work status using sling

Info

Publication number: WO2017095024A1
Application number: PCT/KR2016/012375
Authority: WO
Inventors: 김주용; 최민기
Original assignee: 숭실대학교 산학협력단
Priority date: 2015-12-01
Filing date: 2016-10-31
Publication date: 2017-06-08
Also published as: KR101747549B1; KR20170064315A

Abstract

Provided are a method, an apparatus, a server, and a computer program for monitoring work status using a sling. An apparatus for monitoring work status, according to one embodiment of the present invention, by being applied to the sling comprising conductive fibers and insulating fibers, comprises: a resistance measuring unit for measuring resistance according to the distance between conductive fibers included in the sling; and a communication unit for transmitting the resistance which has been measured to a monitoring server, wherein the distance between the conductive fibers changes according to the change in the shape of the sling due to a load on the sling, and the resistance measuring unit measures the change in the resistance generated due to the change in the distance between the conductive fibers.

Description

How to monitor job status using slings, devices, servers and computer programs

The present invention relates to a technique for monitoring a working state using a sling.

In industrial sites, slings are generally used when workers perform aerial work (repair of high-rise buildings, clean windows, etc.), or transport heavy objects into cranes at fixed heights.

However, such aerial work has a limitation in that it is not possible to closely monitor a heavy object or an operator who uses the sling.

In other words, if a worker loses balance while performing aerial work, or becomes unable to work due to physical problems, or if the sling used for the worker or heavy objects is damaged, the environment called aerial work may Even if a problem occurs, there is a problem that is difficult to respond immediately.

In particular, damage to the slings can lead to the fall of the worker or heavy objects, which can result in life-threatening consequences for the worker as well as other workers present at the work site.

Accordingly, there is a demand for a method for efficiently monitoring a work state of an object (worker or heavy object, etc.) using a sling at an aerial work site and responding quickly when a problem occurs.

The present invention is to solve the above-mentioned problems of the prior art, to provide a way to monitor the working state for the worker or object using the sling and to respond quickly when a problem occurs.

In order to achieve the above object, an apparatus for monitoring a working state is applied to a sling comprising a conductive fiber and an insulating fiber according to an embodiment of the present invention according to the distance between the conductive fibers contained in the sling A resistance measuring unit for measuring the resistance and a communication unit for transmitting the measured resistance to the monitoring server, wherein the distance between the conductive fiber is changed as the shape of the sling due to the load acting on the sling, the resistance measurement The unit measures a change in resistance generated as the distance between the conductive fibers changes.

In order to achieve the above object, the method for monitoring the working state using a sling (sling) comprising a conductive fiber and insulating fibers in the device for monitoring the working state according to an embodiment of the present invention (a) the Measuring the resistance according to the distance between the conductive fibers included in the sling, and (b) transmitting the measured resistance to a monitoring server, wherein the distance between the conductive fibers is due to the load acting on the sling. The shape changes as the shape is changed, and the step (a) is characterized by measuring the change in resistance generated as the distance between the conductive fibers changes.

In order to achieve the above object, a server for monitoring a working state of an object using a sling (including conductive fibers and insulating fibers) according to an embodiment of the present invention is applied to the sling Communication unit for receiving the resistance according to the distance between the conductive fibers included in the sling from the monitoring device, accumulate the received resistance, and compares the pattern according to the change of the accumulated resistance and the pattern of the reference resistance change stored in advance And a resistance change analyzer for determining an abnormality of the sling, wherein the sling is woven using the conductive fiber as the warp yarn and the insulating fiber as the weft yarn. The resistance is the distance between the conductive fibers as the shape of the sling changes due to the load of the object acting on the sling-the When the width between the outermost conductive fibers located on both left and right sides of the ring is changed, and the resistance change analyzer determines that there is an abnormality in the working state, it generates a message for the monitoring device and Characterized in that the transmission to one or more of the manager terminal.

In order to achieve the above object, the monitoring server according to an embodiment of the present invention, the method of monitoring the working state of the object (sling) (including a conductive fiber and insulating fiber) using ( a) receiving a resistance according to a distance between conductive fibers included in the sling from a monitoring device applied to the sling, (b) accumulating the received resistance, and storing a pattern and a pre-stored reference according to a change in the accumulated resistance Comparing the pattern of the resistance change to determine whether there is an abnormality in the working state, and (c) if it is determined that there is an abnormality in the working state, generating a message and transmitting the message to one or more of the monitoring device and the manager terminal; Including, but the sling uses the conductive fiber as the warp yarn, using the insulating fiber as the weft yarn And the received resistance is the distance between the conductive fibers as the shape of the sling changes due to the load of the object acting on the sling-the most positioned on both left and right sides of the sling, respectively. It is characterized by a change in width-between the outer conductive fibers.

According to one embodiment of the present invention, it is possible to easily monitor the working state for the worker or the transport object working in the aerial work site.

In addition, it is possible to prevent accidents that may occur at the aerial work site in advance and to respond quickly in the event of an accident.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a diagram illustrating a system for monitoring a work state according to an embodiment of the present invention.

2 is a block diagram illustrating a configuration of a wearable device according to an embodiment of the present invention.

3 is a block diagram showing the configuration of a monitoring server according to an embodiment of the present invention.

4 is a flowchart illustrating a process of monitoring a work state of a worker according to an embodiment of the present invention.

5 is a flowchart illustrating a process of monitoring a work state of an operator according to another embodiment of the present invention.

6 is a view showing the structure of the sling and the change in resistance according to an embodiment of the present invention.

As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

In this specification, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or some steps It should be construed that it may not be included or may further include additional components or steps.

In addition, as described in the specification, Wealth, ‘… The term 'module' refers to a unit for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The system 100 for monitoring a work state according to an embodiment of the present invention may include a monitoring device 110 and a monitoring server 120 applied to a sling.

In an embodiment of the present invention, the sling may be worn on a worker performing work at a certain height, such as a high-rise building, a climber climbing a cliff / rock, or a carrying object carried at a certain height.

The sling may be secured at one end to a particular location on a crane or building, the other end to a seat belt of the operator / climber, and in the case of a transport object, the other end may be secured to a member supporting (or wrapping) the transport object.

Therefore, the load by the operator / climber or the carrying object acts in the longitudinal direction on the sling during work / climbing or transport of the object, and the shape of the sling may be changed due to the load.

The sling may also include conductive fibers and insulating fibers, which may be woven using conductive fibers as warp yarns and insulating fibers as weft yarns, and the conductive fibers may be slings. It may be connected to the monitoring device 110 applied to.

Hereinafter, a case in which the monitoring device 110 is applied to a sling of a worker performing aerial work in a high-rise building will be described, and the monitoring device 110 applied to a sling worn by the worker is called a wearable device 110. do.

When the worker is suspended in the sling, the load of the worker acts in the sling, and when the worker performs the work, the sling may be repeatedly applied to and removed from the sling by the operator's operation.

At this time, part of the sling is repeatedly contracted and relaxed in the width direction by the Poisson's ratio.

As a result of the change in the width of the sling, a change in the distance between the inclined conductive fibers included in the sling occurs, and a change in resistance may occur according to the change in the distance between the conductive fibers.

As described above, the wearable device 110 may measure a change in resistance between conductive fibers according to a change in distance between conductive fibers generated as the shape (width) of the sling changes due to a load of an operator.

Here, the distance between the conductive fibers may mean the distance between the outermost conductive fibers located on both the left and right sides of the sling, and the distance between the outermost conductive fibers located on the left side of the sling and the outermost conductive fibers located on the right side of the sling. It may be the shortest distance or the maximum diagonal distance.

The wearable device 110 may measure the resistance between the conductive fibers included in the sling and periodically transmit the resistance to the monitoring server 120.

For reference, the wearable device 110 may be connected to the monitoring server 120 through a network repeater (for example, a base station in the outdoor, an access point in the indoor, etc.) (not shown), and the wearable device 110 will be described below. Communicating with the monitoring server 120 may mean an intervention of a network repeater (not shown).

In addition, the wearable device 110 may receive information on whether there is an abnormal state of work according to a change in the resistance between conductive fibers included in the sling from the monitoring server 120.

Here, the 'work state abnormality' may include a case in which a character occurs in at least one of a sling state and a worker state.

For example, when a part of the sling is damaged or an abnormality occurs in the body of the worker, the worker cannot move, and a part of the plurality of slings fixing the worker may be separated.

That is, if the above-described abnormal working condition occurs, the resistance change between the conductive fibers included in the sling will show a very different pattern from the usual (usual) working pattern, it is determined that the abnormal working condition Can be.

If it is determined that an abnormality has occurred in the working state in the monitoring server 120, the wearable device 110 may receive information indicating this from the monitoring server 120 and output the information informing thereof.

Here, the output unit (not shown) may include a display unit, a vibrator, a speaker, a lamp, and the like, and the wearable device 110 may indicate a work state of an operator through at least one of the display unit, the vibrator, the speaker, and the lamp. You can inform.

For reference, the wearable device 110 may include a microphone. The wearable device 110 may check whether the manager and the work state are abnormal through the microphone and the speaker.

On the other hand, the monitoring server 120 includes one or more of the tolerance range for determining the change in resistance and the resulting pattern and the abnormality of the working state for each pattern for each type of job and each weight of the worker for each job The 'standard job information' can be stored in the storage (not shown).

In addition, the monitoring server 120 may receive operation information including the identifier of the wearable device 110 and the resistance between conductive fibers included in the sling from the wearable device 110, and accumulate the corresponding resistance value at a specific period. The pattern according to the change of the accumulated resistance value can be extracted.

For reference, the identifier of the wearable device 110 may be matched with information such as a worker using the wearable device 110 and a work type and weight of the worker.

Thereafter, the monitoring server 120 compares the extracted pattern with a pattern of 'reference job information' stored in a storage (not shown), and when it is out of an allowable range for determining whether there is an abnormal state of a work state, a work state of a corresponding worker. It may be determined that an abnormality has occurred, and the information indicating the abnormality may be transmitted to one or more of the wearable device 110 and an administrator terminal (not shown).

In this case, the monitoring server 120 may transmit a message indicating that there is a worker who has an abnormality among the neighboring workers to the wearable device of another worker in the vicinity of the wearable device 110.

In addition, the monitoring server 120 may be connected to the wearable device 110 through a network repeater (for example, a base station in the outdoor, an access point in the indoor, etc.) (not shown), and the monitoring server 120 may be connected to the wearable device. Communicating with 110 may mean intervention of a network repeater (not shown).

The wearable device 110 according to an exemplary embodiment of the present invention may include a resistance measuring unit 111, a communication unit 112, an output unit 113, and a control unit 114.

First, the resistance measuring unit 111 may measure the resistance between conductive fibers included in the sling.

Here, 'conductive fiber' may be used as a slant in the sling, and may be woven together with a weft insulated fiber, and the resistance measuring unit 111 is the outermost conductive located on the left side of the sling. The resistance between the fiber and the outermost conductive fiber located on the right side can be measured.

When performing the operation, the sling may be repeatedly applied to and removed from the sling by the operator's operation, and thus, a portion of the sling may be repeatedly contracted and relaxed in the width direction.

When the shape of the sling repeats contraction and relaxation in the width direction, the distance between the conductive fibers included in the sling becomes closer or farther from each other, thereby causing a change in resistance.

The resistance measuring unit 111 may measure a change in resistance generated by the distance between the conductive fibers included in the sling, or closer to each other, and the measured resistance is transferred to the monitoring server 120 through the communication unit 112. Can be sent.

Here, the distance between conductive fibers may be the shortest distance or the maximum diagonal distance between the outermost conductive fiber located on the left side of the sling and the outermost conductive fiber located on the right side.

On the other hand, the communication unit 112 may transmit the resistance measured in the resistance measuring unit 111 to the monitoring server 120 by using a wireless communication, according to the resistance change between the conductive fibers included in the sling from the monitoring server 120 Information indicating whether there is an abnormality in the work status can be received.

To this end, the communication unit 112 may include a wireless communication means for wirelessly communicating with the monitoring server 120, the wireless communication means may use a local area network, such as Wi-Fi (wifi) or Bluetooth (bluetooth), 3G Or a mobile communication network such as LTE.

On the other hand, the output unit 113 may output information indicating the presence or absence of the abnormal operation status received from the monitoring server 120.

The output unit 114 may include a display unit, a vibrator, a speaker, a lamp, and the like, and output information indicating that an abnormality has occurred in the work state by using one or more of the display unit, the vibrator, the speaker, and the lamp. Can be.

The controller 114 may control the resistance measuring unit 111, the communication unit 112, and the output unit 113 to allow each component to perform the above-described operation.

The monitoring server 120 according to an embodiment of the present invention may include a reference job information storage unit 121, a resistance change analyzer 122, and a communication unit 123.

Referring to each component, the reference job information storage unit 121 determines the change of resistance and the pattern according to the weight of the worker for each job type and each job, and the abnormality of the work state for each pattern. It is possible to store the 'baseline task information' which includes one or more of the allowable ranges.

For example, the job type is 'Cleaning the glass windows of a high-rise building', and the resistance change when the worker weighs 70kg is ± 10, and the resistance change is ± 15 when the worker weighs 80kg. The pattern of is a sine curve for both the worker of 70kg and the worker of 80kg, the allowable range for determining the abnormality of the working state can be stored as ± 5.

Meanwhile, the resistance change analyzer 122 accumulates work information including the identifier of the wearable device 110 received from the wearable device 110 and the resistance between the conductive fibers included in the sling at a specific period, and accumulates the accumulated resistance value. The pattern according to the change can be extracted.

In addition, the resistance change analyzer 122 may compare the extracted pattern with a pattern of reference job information stored in the reference job information storage 121 to determine whether there is an abnormal state of the job.

The resistance change analyzer 122 compares the two patterns, and as a result, when the extracted pattern is out of an allowable range for determining an abnormal state of a work state with respect to a pattern of reference work information, It can be judged that an abnormality has occurred.

Thereafter, the resistance change analyzer 122 may transmit information indicating that an abnormality has occurred in the work state of the worker to one or more of the wearable device 110 and the manager terminal (not shown).

In this case, the resistance change analyzer 122 may transmit a message indicating that there is a worker who has an abnormality among the neighboring workers to the wearable device of another worker in the vicinity of the wearable device 110.

On the other hand, the communication unit 123 may include a wireless communication means for wirelessly communicating with the wearable device 110, the wireless communication means may use a local area network such as Wi-Fi, Bluetooth in the indoor, outdoor Mobile communication networks such as 3G and LTE may also be used.

The communication unit 123 may receive job information from the wearable device 110, and inform the wearable device 110 and the manager terminal of the information indicating whether there is an abnormality in the work state of the worker generated by the resistance change analyzer 122. (Not shown).

4 may be executed by the wearable device 110. Hereinafter, the flowchart of FIG. 4 will be described based on the wearable device 110.

The wearable device 110 measures the resistance according to the distance between the conductive fibers included in the sling (S401).

After S401, the wearable device 110 transmits the measured resistance to the monitoring server 120 (S402).

In this case, the wearable device 110 may transmit its identifier together with the measured resistance.

After S402, the wearable device 110 receives and outputs information on the presence or absence of an operation state according to the change of the resistance between the conductive fibers included in the sling from the monitoring server 120 (S403).

FIG. 5 may be executed by the monitoring server 120. Hereinafter, the flowchart illustrated in FIG. 5 will be described based on the monitoring server 120 as an execution agent.

The monitoring server 120 receives the operation information including the identifier and the resistance between the conductive fibers included in the sling from the wearable device 110 (S501).

After S501, the monitoring server 120 accumulates the received job information for a predetermined time, and extracts the change of the accumulated resistance and the pattern according thereto (S502).

After S202, the monitoring server 120 compares the extracted pattern with the reference pattern stored in the reference job information storage 121 to determine whether the worker has an abnormal working state (S503).

After S503, the monitoring server 120 generates information informing the determination result of S503 and provides the wearable device 110 and an administrator terminal (not shown) (S504).

Here, when the information indicating that the work condition of the worker is determined to be abnormal as the information indicating the determination result, the wearable device 110 and the manager terminal (not shown) receiving the information have an abnormal work condition. Information indicating that the operation is performed may be output using at least one of a display unit, a vibrator, a speaker, and a lamp.

FIG. 6A illustrates a state of the sling to which the wearable device 110 is applied, before and after the load of the operator.

When the load of the operator acts on the sling in the longitudinal direction, the width of the sling is narrowed as indicated by the dotted line in Fig. 6A.

In this state, when the worker moves for the work, the sling may be repeatedly loaded and removed in the longitudinal direction, and a portion of the sling is repeatedly contracted and relaxed in the width direction by the Poisson's ratio. do.

FIG. 6B is a cross section of the width of the sling shown in FIG. 6A, in which a slanted conductive fiber 610 and a weft insulating fiber 620 can be seen. .

Comparing the distance between the conductive fibers before and after the operator's load on the sling, it can be seen that the distance between the conductive fibers after the load has changed shorter.

That is, the distance between the outermost conductive fiber 611 located on the left side of the sling and the outermost conductive fiber 612 located on the right side varies, and thus the resistance may also change.

For reference, the distance between the

conductive fibers

611 and 612 may be a maximum diagonal distance between the left conductive fiber 611 and the right conductive fiber 612 of the sling, and the wearable device 110 may provide resistance to the maximum diagonal distance and The change in resistance can be measured.

For reference, the conductive fibers that are inclined in the slings are arranged at positions close to each other before or after the load of the operator is actuated, as shown in FIG. 6 (b)-of course, due to the load of the operator. As the width of the sling narrows, the distance between the conductive fibers is closer-not completely contacted by the weft insulating fibers.

However, due to the tunneling effect (tunneling effect) current can flow between the conductive fibers, it is possible to measure the resistance to the distance between the conductive fibers forming a maximum diagonal distance.

On the other hand, the components of the above-described embodiment can be easily identified from a process point of view.

That is, each component can be identified as a respective process. In addition, the process of the above-described embodiment can be easily understood in terms of the components of the apparatus.

In addition, the technical contents described above may be embodied in the form of program instructions that may be executed by various computer means and may be recorded in a computer readable medium.

The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination.

Program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.

Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.

Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

The hardware device may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. Should be considered to be within the scope of the following claims.

Claims

Apparatus for monitoring a working condition applied to a sling comprising a conductive fiber and an insulating fiber,

A resistance measuring unit measuring resistance according to a distance between conductive fibers included in the sling; And

Communication unit for transmitting the measured resistance to the monitoring server

Including,

The distance between the conductive fibers changes as the shape of the sling changes due to the load acting on the sling,

And the resistance measuring unit measures a change in resistance generated as the distance between the conductive fibers changes.
The method of claim 1,

The sling is

Using the conductive fibers as warp yarns,

It is woven using the insulating fiber as a weft yarn,

The resistance measuring unit

And a change in resistance generated as the width between the outermost conductive fibers located on both left and right sides of the sling changes.
The method of claim 2,

The width between the outermost conductive fibers is

The shortest distance between the outermost conductive fiber located on the left (hereinafter referred to as 'left conductive fiber') and the outermost conductive fiber located on the right (hereinafter referred to as 'right conductive fiber');

And a maximum diagonal distance between the left conductive fiber and the right conductive fiber.
The method of claim 1,

Output unit for outputting information on the presence or absence of a working state according to the change in the resistance received from the monitoring server

Include more,

And the output unit includes one or more of a display screen, a vibration, a speaker, and a lamp.
In the method for monitoring the working condition using a sling (sling) comprising a conductive fiber and insulating fiber,

(a) measuring the resistance according to the distance between the conductive fibers included in the sling; And

(b) transmitting the measured resistance to a monitoring server

Including,

The distance between the conductive fibers changes as the shape of the sling changes due to the load acting on the sling,

Step (a) is

And measuring a change in resistance generated as the distance between the conductive fibers changes.
The method of claim 5,

The sling is

Using the conductive fibers as warp yarns,

It is woven using the insulating fiber as a weft yarn,

Step (a) is

And a change in resistance generated as the widths of the outermost conductive fibers respectively positioned on both left and right sides of the sling are changed.
The method of claim 5,

(c) receiving and outputting information on the presence or absence of an operation state according to the change of the resistance from the monitoring server;

Include more,

Step (c) is

Outputting through an output means including at least one of a display screen, a vibration, a speaker and a lamp.
A computer program stored on a medium containing a series of instructions for performing a method according to claim 5.
A server for monitoring the working status of an object using a sling (including conductive and insulating fibers),

A communication unit receiving a resistance according to a distance between conductive fibers included in the sling from a monitoring device applied to the sling;

The resistance change analyzer which accumulates the received resistance and compares the pattern according to the change of the accumulated resistance with the pattern of the change of the reference resistance previously stored to determine whether there is an abnormal state of the work state

Including,

The sling is

Using the conductive fiber as warp yarns, and weaving using the insulating fiber as weft yarns,

The received resistance is

As the shape of the sling changes due to the load of the object acting on the sling, the distance between the conductive fibers-the width between the outermost conductive fibers respectively positioned on both left and right sides of the sling-changes. Change,

The resistance change analyzer

If it is determined that there is an abnormality in the working state, a monitoring server, characterized in that for generating a message to be transmitted to one or more of the monitoring device and the administrator terminal.
The method of claim 9,

Reference work including one or more of a kind of work, a resistance change for each load of the object using the sling in each work, a pattern corresponding thereto, and an allowable range for judging whether there is an abnormal state of work for each pattern. Storage unit for storing information

Monitoring server further comprising.
A method of monitoring a working state of an object using a monitoring server comprising a sling (including conductive fibers and insulating fibers), the method comprising:

(a) receiving a resistance according to a distance between conductive fibers included in the sling from a monitoring device applied to the sling;

(b) accumulating the received resistance and comparing the pattern according to the change of the accumulated resistance with the pattern of the reference resistance change previously stored to determine whether there is an abnormal state of the working state; And

(c) if it is determined that there is an abnormality in the work state, generating a message and transmitting the message to one or more of the monitoring device and the manager terminal

Including,

The sling is

Using the conductive fiber as warp yarns, and weaving using the insulating fiber as weft yarns,

The received resistance is

As the shape of the sling changes due to the load of the object acting on the sling, the distance between the conductive fibers-the width between the outermost conductive fibers respectively positioned on both left and right sides of the sling-changes. Work status monitoring method characterized in that the change.