KR20200050617A - Apparatus for preventing miss controlling applied with detecting structure of dual sensors - Google Patents

Abstract

According to the present invention, a malfunction prevention device, to which a dual sensor detection system is applied, is installed on the top of a panel control part having a plurality of operation units. The malfunction prevention device comprises: a reference information storage unit for storing reference information which is the information on positions of the operation units; a plurality of first sensors which are provided in front of the front of the panel control part, are provided at positions corresponding to the operation units based on a vertical direction, and detect distance information with an object through downward detection; and a main control unit that matches the distance information detected by the first sensor with the reference information to generate work information that is information about a current work object.

Description

Anti-tampering device with binary sensor detection system {APPARATUS FOR PREVENTING MISS CONTROLLING APPLIED WITH DETECTING STRUCTURE OF DUAL SENSORS}

The present invention relates to an apparatus for preventing erroneous operation, and more specifically, to accurately detect a dual sensor base based on a behavioral characteristic of an operator and a positional relationship of a unit to be subject to work or manipulation, and using a detected signal system Precise detection and interfacing of events that are expected to be erroneous prevents misoperation by applying a dual sensor detection system that accurately guides the operator about the work object and prevents erroneous manipulation of the target work. It is about the device.

Various efforts have been made to prevent safety accidents, but regardless of the object of the work, safety accidents are constantly occurring in various reasons and reasons.

In particular, in a work environment such as a power plant, even a small mistake can lead to huge problems such as local power supply interruption, the entire power plant system down, and personal injury.

In an environment such as a power plant, a work plan, as well as a work execution and work completion process are going through complicated stages to prevent erroneous operation of equipment such as electrical facilities, and are operated so that multiple people work in groups. Since most of the methods are intrinsically human-dependent methods, such as manual or manual checks made by people such as managers and controllers, there is a possibility that an accident may occur at any time.

In particular, in large-scale plant facilities such as power plants, facility buildings with almost the same appearance are repeated identically, and even within the facility buildings, there are many panel control panels with the same shape and shape. It can be said that there is a higher possibility of incorrectly selecting the work object or misjudge the facility building that is the work object.

In addition, a plurality of units (units) designed to independently control the power supply for each facility, sector, or facility in a power plant is installed in the form of a rack in the same panel control panel, and the panel control panel is also the same. Since it is provided in the same facility building along with a number of other panel control panels of the type, there is a problem that an operator's mistake may occur at any time even in the process of selecting a corresponding unit to be a work target.

Korean Patent Publication No. 10-2015-0104009 (2015.09.14.) Korean Registered Patent Publication No. 10-1409324 (2014.06.20.)

The present invention has been devised to solve the above-mentioned problems in the above background, based on the binary sensor, the region where the operator's movement or behavior is made and the region where the operation unit that is the object of operation or operation is located in the panel control panel. By effectively detecting and using the sensed information system, it is possible to accurately guide the operator of the panel control panel that is the target of the operation, as well as the operation unit that is the target of the panel control panel, and that there are misoperations or misoperations. The purpose of the present invention is to provide a user-oriented user-oriented misoperation prevention system that can fundamentally block problems that may occur due to human errors by accurately checking in advance the possible situations and interfacing them to workers. .

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by a combination of the configuration and the configuration shown in the claims.

The malfunction prevention device to which the dual sensor detection system of the present invention is applied to achieve the above object is a malfunction prevention device installed on the upper portion of a panel control panel having a plurality of operation units, and information about the positions of the plurality of operation units A reference information storage unit in which the reference information is stored; A plurality of first sensors provided at a front side of the panel control panel at a position corresponding to the plurality of operation units based on a vertical direction, and sensing distance information with an object through downward detection; And a main control unit that matches the distance information sensed by the first sensor with the reference information to generate work information that is information on a current work object.

In addition, the present invention is a job information storage unit for storing the target job information, which is information in which information about the operator information, the panel control panel as the work target, and the operation unit as the work target is interconnected information; And an alarm unit configured to output alarm information when the job information does not correspond to the target job information.

Preferably, the present invention is provided in front of the first sensor, a plurality of second sensors for sensing the distance information to the object through the downward detection; And an information generating unit that generates one or more information of presence or absence of an operator, movement of an operator, or stop of an exact position of an operator by using distance information sensed by each of the second sensors and detection time difference information of each of the second sensors. can do.

Furthermore, the present invention may further include a tag recognition unit that recognizes worker identification information from a tag carried by an operator. In this case, the alarm unit of the present invention, in the state where the information generation unit generates information on the stop of the position, the When the operator identification information recognized by the tag recognition unit does not correspond to the target job information, it may be configured to generate alarm information.

In addition, the information generating unit of the present invention is preferably configured to set the distance information of the highest position among the distance information of each of the second sensors as the head position information of the operator and generate tracking information according to the time of the head position information. Do.

More preferably, when the distance information of the first sensor and the head position information correspond to each other, the main control unit of the present invention estimates a worker's height position using the tracking information or the distance information of each of the second sensors. And generating the work information based on the estimated height position.

In the case of the present invention, information on the work place, location, and information on the worker who will perform the work is DB in advance, and by using this, information about the exact work place to which the worker himself should move is implemented to be shared with the worker. It is possible to induce the operator to accurately move the work place or position.

In addition, according to the present invention, based on a dualized sensor that dualizes a spatial area in which a worker moves or behaves and a spatial area in which a manipulation unit is provided and senses each of these dualized spatial areas, the behavioral characteristics of the operator are By using the ergonomic positional relationship of the operator's head and hands as well as information, it is possible to provide an effect of more accurately grasping the object on which the work is performed.

Furthermore, the present invention makes the position of the operator's body dual and accurately senses it and matches the sensed position information with the position information of a plurality of operation units constituting the panel control panel, and feedbacks the result to the worker through visual or auditory media. By doing so, it is possible to induce that actions such as operations or operations requiring extreme safety are performed more accurately and accurately.

The following drawings attached to the present specification are intended to illustrate preferred embodiments of the present invention, and serve to more effectively understand the technical spirit of the present invention together with the detailed description of the invention described below. It should not be interpreted as being limited to the matter.
1 is a view showing the overall device and a malfunction prevention device according to a preferred embodiment of the present invention,
Figure 2 is a flow chart showing an embodiment of the erroneous operation processing in the entire system including the present invention,
Figure 3 is a block diagram showing the detailed configuration of the erroneous operation preventing device according to an embodiment of the present invention,
4 is a view showing an embodiment in which the erroneous operation preventing device according to the present invention is installed in a panel control panel;
5 is a view showing a process of detecting an object using a sensor detection system that is erroneous operation prevention device according to the present invention,
Figure 6 is a flow chart showing the processing process of the present invention for detecting the behavior characteristics of the operator using a second sensor,
7 is a flow chart showing a processing process of the present invention for providing information on misoperation and the like to a worker using a first sensor,
8 is a view for explaining an embodiment of the present invention to generate information about the current work object by estimating the posture of the operator.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be interpreted as being limited to ordinary or dictionary meanings, and the inventor appropriately explains the concept of terms in order to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the configuration shown in the embodiments and drawings described in this specification is only one of the most preferred embodiments of the present invention and does not represent all of the technical spirit of the present invention, and various equivalents that can replace them at the time of this application It should be understood that there may be water and variations.

FIG. 1 is a view showing an overall erroneous operation preventing device 300 (hereinafter referred to as a ‘error operation preventing device’) and related configurations to which a dual sensor detection system according to an exemplary embodiment of the present invention is applied.

The erroneous operation preventing device 300 of the present invention is a device that is installed on the upper portion of the panel control panel 20, and has a shape in which a part of the panel control panel 20 protrudes forward, as shown in the drawing. Can be configured.

In addition, the erroneous operation preventing device 300 of the present invention is communicatively connected to a plurality of tag sensors 200 and a control server 100 through a communication network 5 as shown in FIG. 1.

The control server 100 corresponds to a system server capable of comprehensively performing management of work history, worker management, monitoring of work status, management, and the like.

Operator information, work place or location, work time, work content, panel control panel 20 as a work object, switches to be operated or operated on the panel control panel 20, operation levers, operation buttons, and the like (hereinafter 'operation unit') This is referred to as) (21) information (hereinafter referred to as 'target job information') may be pre-inputted into the control server 100 of the present invention by an administrator or the like.

The control server 100 continuously stores and updates such target work information, and the tag sensor 200 installed in the field and the erroneous operation preventing device 300 of the present invention can share target work information at the time. It is configured to transmit the target work information to the tag sensor 200 and the erroneous operation preventing device 300.

In addition, the control server 100 of the present invention uses the stored target job information to control the issuance of the wireless tag 30, which contains information on the identification code (ID) of the corresponding worker and the work contents assigned to the corresponding worker. . Needless to say, work information, as well as information on the history of wireless tag issuance and work status, can be configured to be displayed on the screen display means 50 through a predetermined graphical user interface (GUI) environment.

The radio tag 30 represents a terminal equipped with an electronic tag or an electronic tag that is given to the worker by a method such as carrying / holding / attaching the worker, and so on, RFID, Bluetooth, and ZigBee to minimize an artificial action of the worker. It is preferable to implement a short-distance information transmission method other than a contact type or a touch type by applying a communication method such as.

When the worker with the radio tag 30 arrives at the site, the tag sensor 200 installed at the field gate or the like detects the information contained in the radio tag 30 and reads the detected information back to the control server of the present invention ( It is configured to feedback to 100), and if the worker who arrives at the site using the target work information shared and stored in the tag detector 200 has not entered the scheduled work place, information about it is output through various visual and auditory media. It is configured to.

A large number of facility buildings having the same shape and structure are installed in a large-scale plant such as a power plant, which facilitates problems such as an operator incorrectly recognizing the location of the facility building through processing to detect the wireless tag and feed back the information as described above. In addition to solving the problem, it is possible to induce accurate movement to a corresponding work place (facilities building).

On the other hand, a large number of panel control panels 20 for controlling electricity, power, etc. are provided in the facility building of the power plant. These panel control panels 20 are made of the same shape and structure in the form of a rack and are skilled. An operator may accidentally recognize and manipulate a work object incorrectly.

Moreover, the same panel control panel 20 is also provided with a plurality of operation units 21 (see FIG. 4) having a similar shape, and the operation of power-off, control, etc. proceeds to the operation unit 21 as a single object. It is said that there is a higher possibility of being exposed to the possibility of erroneous operation.

The erroneous operation prevention device 300 of the present invention is a device for fundamentally solving such problems, and is installed in a panel control panel 20 so that various information about a worker and a work situation can be interfaced through a visual or auditory medium. It corresponds.

As mentioned above, the target operation information transmitted from the control server 100 is configured to be shared with the erroneous operation prevention device 300 of the present invention, so the erroneous operation prevention device 300 of the present invention uses this information to allow an operator The panel control panel 20 or the operation unit 21 belonging to the panel control panel 20 is precisely detected, and information on the detection result is compared with stored target work information to select or specify the work target. It is configured not only to filter out errors, but also to guide and monitor specific scheduled tasks to proceed accurately.

Depending on the embodiment, the control server 100 includes information about the current job status in the manager mobile terminal 400, information detected by the tag sensor 200, and information detected by the erroneous operation prevention device 300 of the present invention. This can be shared in real time, so that if there is a possibility of a problem, the site manager can be configured to immediately follow up.

The communication network 5 is not limited to wired, wireless, and communication protocols, and various methods can be applied. However, it is preferable that the wireless communication infrastructure is properly utilized in consideration of special circumstances such as a power plant.

2 is a flowchart illustrating a processing process performed in the entire system including the erroneous operation preventing device 300 of the present invention.

As shown in FIG. 2, the control server 100 of the present invention includes operator information, a work place or location, work time, work content, a panel control panel as a work target, and an operation unit to be operated or operated on the panel control panel. The target work information that is information is stored (S400). Needless to say, the target work information may be updated and stored based on a specific time period according to the work day, work progress, and the like.

When the target work information is stored in this way, a radio tag 30 is recorded for each worker, which includes information on worker ID information, target work information, work place, etc., which are independently provided for each specific worker, by a predetermined tag issuing device or the like (S410). ). Of course, the history information issued by the radio tag 20 may be stored in the control server 100 in association with the corresponding task.

The control server 100 transmits the stored target work information to the tag sensor 200 installed in the field and the erroneous operation prevention device 300 of the present invention through the wired / wireless communication network 5 (S412, 414). The installed tag sensor 200 and the erroneous operation preventing device 300 control the target work information to be shared.

As described above, when the target job information is transmitted from the control server 100 to the tag detector 200, the target job information is stored in the tag detector 200 (S420). The tag detector 200 may be installed on a gate such as a facility building or a room, and may be installed on a moving path of the worker so as to check and utilize the actual moving path of the worker. Yes, of course.

When the worker passes through the gate of the facility building, the tag detector 200 of the present invention installed around the gate of the facility building recognizes the radio tag carried by the operator and checks the information contained in the radio tag 30 (S422) , Perform processing to match the information recognized by the radio tag 30 with the target job information stored in the tag sensor 200 (S424).

As a result of the matching processing, when the information recognized by the tag and the stored work information do not correspond, such as when a worker who is not a predetermined worker enters the corresponding place, the tag detector 200 drives a predetermined alarm means (S426).

The method of driving the alarm means may be implemented in various ways, for example, to display alarm information through a visual medium such as a warning light or LED and an acoustic medium such as a warning sound.

In order to effectively induce the corresponding worker to move to the correct work place, the tag sensor 200 uses the shared target work information to determine the exact place or location to which the corresponding worker should move to the worker who has incorrectly visited the work place. It can be configured to display through the screen display means or the audio output means.

Depending on the embodiment, the PIR sensor may be configured to detect an operator, so that an operator entering the work site where the tag sensor 200 is installed without passing through the radio tag 30 or passing through the gate of the facility building may be selected. have.

The tag detector 200 generates access information including various information about the information recognized by the radio tag 30, erroneous access information, worker access time, and eviction time (S428) and controls the generated access information. It may be configured to transmit to the server 100 (S429). When the access information is transmitted as described above, various work status information including this is generated and displayed (S440) so that it can be used as history data, and the controller can easily monitor the overall status of the work.

As described above, the target work information stored in the control server 100 is also transmitted to the erroneous operation preventing device 300 of the present invention, and a plurality of panel control panels 20 provided as work targets together with the target work information Reference information, which is information about the dog operation unit 21, is also stored in the erroneous operation prevention device 300 of the present invention (S430).

The reference information is position-based information, and coordinate information for the height and horizontal position of the corresponding operation unit 21 based on a relative reference point, such as a physical occupied space of the ground or panel control panel 20 (refer to FIG. 3, X axis) And Z-axis coordinates).

As will be described later, the present invention is constructed based on sensors 330 and 340 for sensing an object using light or laser, so that the sensor or the like detects the distance through a function processing that considers the position of the sensor and the like. It goes without saying that the reference information can be configured with the converted lookup table.

When the operator detects that the operator has entered the facility through the tag detector 200 installed at the gate or the like, the erroneous operation preventing device 300 of the present invention uses the detection signal as a trigger signal, and the sleep mode 300 Can be configured to switch to wake mode.

When an operator approaches the corresponding panel control panel 20, the first sensor 330 and the second sensor 340 of the present invention operate to detect an operator's behavior, position, and operator's operating position (S432). The process of detecting the operator by the first sensor 330 and the second sensor 340 of the present invention and subsequent processing using the same will be described later.

As described above, when an operator's behavior characteristics, position, operation position, etc. are detected, the erroneous operation prevention device 300 of the present invention performs processing to match these detection signals with the reference information to become an operation / object of operation. Work information that is information on the unit 21 and the like is generated (S434).

Thereafter, the erroneous operation preventing apparatus 300 of the present invention compares the job information generated through this process with the stored target job information and determines whether the currently generated job information corresponds to a predetermined job target (S436).

As a result of the determination, if the current job information does not correspond to the target job information, a predetermined alarm means is driven to control the alarm signal to be output (S437). If the current job information corresponds to the target job information, the screen display means such as LCD is green. You can change it to or you can control so that the notice of the intention of “You can proceed with the work because it is the target of the work.” Can be displayed.

In addition, the erroneous operation preventing device 300 of the present invention generates work progress information for the erroneous operation or when it is determined that the scheduled operation is performed (S438) and transmits it to the control server 100 (S439) ).

Hereinafter, a detailed configuration of the erroneous operation preventing apparatus 300 of the present invention and a detailed processing process of the configuration will be described with reference to the accompanying drawings.

3 is a block diagram showing a detailed configuration of the erroneous operation preventing device 300 of the present invention, and FIGS. 4 and 5 are detecting the appearance and objects of the erroneous operation preventing device 300 installed on the panel control panel 20. 6 and 7 are flowcharts showing the processing of the present invention.

As shown in Figure 3, the erroneous operation preventing device 300 of the present invention includes a work information storage unit 310, a reference information storage unit 320, a first sensor 330, a second sensor 340, and a main control unit. 350, an alarm unit 360, a tag recognition unit 370, and an information generation unit 380.

Prior to the detailed description of the present invention, each component of the erroneous operation preventing device 300 of the present invention shown in FIG. 3 should be understood as a logically divided component rather than a physically divided component.

That is, each configuration corresponds to a logical component for realizing the technical idea of the present invention, so that even if each component is integrated or separately configured, the function performed by the logical configuration of the present invention can be realized. It should be interpreted that it is within the scope, and components that perform the same or similar functions should be interpreted as being within the scope of the present invention regardless of whether or not there is consistency in the name.

As described above, the work information storage unit 310 of the present invention includes worker information, information about the panel control panel 20 as a work object, and an operation unit 21 as a work object in the panel control panel 20. The target work information, which is information in which information is mutually linked, is stored (S700, see FIG. 7).

The reference information storage unit 320 of the present invention stores reference information that is information about each position of the plurality of operation units 21 of the panel control panel 20 (S700). As described above, the reference information is composed of code information for identifying the operation unit 21 and 2D coordinate information, and may be information converted to correspond to distance information recognized by the laser sensor.

The erroneous operation preventing device 300 of the present invention is installed on the top of the panel control panel 20, and the front part of the panel control panel 20 is based on the front surface of the panel control panel 20 as shown in FIGS. 4 and 5. It is configured to protrude in the forward direction (Y-axis direction based on FIG. 4).

The first sensor 330 and the second sensor 340 of the present invention are sensors provided in a front portion of the erroneous operation preventing device 300 of the present invention, that is, a portion protruding forward than the front of the panel control panel 20. It corresponds to a sensor that detects and generates distance information to a subject using time information, such as light and laser, reflected by the subject.

Specifically, the first sensor 330 of the present invention is provided in front of the front of the panel control panel 20, each provided in a position corresponding to a plurality of operation units 21 based on the vertical direction (Z axis), By setting the direction in which light is irradiated to the downward direction (-Z axis), distance information from an object or a subject existing below is sensed.

As shown in FIG. 5 (a), the first sensor 330 is installed at each position corresponding to a position where the operation unit 21 is arranged based on a vertical direction (Z-axis direction), and a plurality (330-1, 330-2).

The height or length information (D1, D2, D3) of each operation unit 21 is stored as reference information as described above, and the first sensor 330 of the present invention uses the operator's hand as a sensing object to Detect hand position.

As described above, when the first sensor 330 of the present invention detects a hand position of an operator and generates position information (height / length information) of a hand (object) (S710), the main control unit 350 of the present invention The sensing information of the first sensor 330 and the reference information stored in the reference information storage unit 320 are mutually matched (S720) to generate work information that is information about the current work target (operation unit) (S730).

As described above, information on the operation unit related to the operation of the current worker based on the position of the current worker's hand is referred to as 'work information' in the description of the present invention.

When the job information is generated as described above, the alarm unit 360 of the present invention reads and accesses the target job information stored in the job information storage unit 310 to determine whether the job information corresponds to the target job information ( S840). As described above, the target job information is information transmitted from the control server 100 or the like and corresponds to information including information about a scheduled job / operation target.

As a result of the determination, if the operation information corresponds to the operation unit 21 for which the operation is scheduled, normal guidance information is output (S750), and if the operation information does not correspond to the target operation information, the alarm information is output (S760). .

The second sensor 340 of the present invention is also provided with one or more in front of the front of the panel control panel 20 as the first sensor 330, the first sensor 330 as shown in Figure 5 (b), etc. It is provided at a position d protruding more forward (in the Y-axis direction).

The second sensor 340 also corresponds to a sensor that detects and generates distance information between an object or a subject existing below by setting a direction in which light is irradiated to a downward direction (-Z axis).

When the operator P targets the panel control panel 20 to perform a specific operation or operation, the head of the operator P due to the structure of the human body is the front of the panel control panel 20 rather than the hand performing the operation. It is located at the rear (Y axis) with reference to. That is, the hand is positioned closer to the panel control panel 20 than the head.

In the present invention, when the operator performs the work on the panel control panel 20, the position of each body part (head, hand, etc.) is dually sensed and organically linked signal systems sensed dually It is configured to generate more accurate and precise work information (information about the operation unit corresponding to the current operator's work / operation).

Furthermore, if there is an error in the first sensor 330 or the signal system is not correct, the operator's posture or pose is estimated using a plurality of detection signals generated by the second sensor 340, and the estimated posture and corresponding posture are determined. It is configured to accurately estimate what work information is at the current time by using the angle and distance information of the hand and head.

Specifically, the second sensor 340 of the present invention detects the vertical downward in a state protruding more forward than the first sensor 330, so that even if the operator does not actually perform the work, the movement or behavior characteristics of the worker can be effectively detected. have.

For example, when a plurality of second sensors 340 are provided, a detection signal is generated from one or more of these sensors (S610, see FIG. 6) and the second sensors 340 for a reference time (for example, 5 seconds) ) If a detection signal is continuously generated in one or more of the steps (S620), this means that the operator is staying in the corresponding panel control panel 20. In this case, the information generating unit 380 of the present invention corresponds to “stop in place”. Information is generated (S640).

In addition, after a detection signal is generated from one or more of the plurality of second sensors 340, if the detection signal of the second sensor 340 is not maintained for a reference time, this is moved by the operator to pass the panel control panel 20. In this case, the information generation unit 380 of the present invention generates information corresponding to “move” (S650).

As illustrated in FIG. 6, when no detection signal is generated by one or more of the second sensors 340, the information generating unit 380 of the present invention may generate information corresponding to “no operator” Is (S630).

As described above, the information generating unit 380 of the present invention uses the presence or absence of the worker, the movement of the worker, or the determination of the worker by using the detection time difference information of each of the second sensor 340 and each of the second sensor 340. It generates one or more pieces of information during the stoppage.

If the conditions for the end of the work are satisfied according to the embodiment (S660), the second sensor 340 is switched to the sleep mode (S670), and the tag sensor 200 located at the gate or the like as described above allows the worker to work or work. When detecting that the user has entered the room, the second sensor 340 may be activated (S600) using the signal as a trigger signal.

The tag recognition unit 370 of the present invention can effectively prevent an operator from incorrectly recognizing a panel control panel 20 to be a work target, and the tag recognition unit 370 of the present invention includes a tag stored in a tag from a tag or tag terminal 20 carried or carried by the operator. The identification information is configured to be read by using wireless communication such as Bluetooth and zigbee.

As described above, in the job information storage unit 310 of the present invention, various target job information related to the scheduled job is DB, so the alarm unit 360 of the present invention identifies worker identification information recognized by the tag recognition unit 370. Is configured to generate alarm information when the operator identification information does not correspond to the target job information by matching with the target job information.

Through such a configuration, it is possible to effectively identify a case in which the operator incorrectly recognizes the panel control panel 20 to be operated and feed back the information to the operator to effectively prevent the case where the panel control panel 20 itself is confused.

Although the second sensor 340 may be slightly different depending on the separation distance, the second sensor 340 may generate different distance information when the operator approaches the panel control panel 20. For example, the left sensor among the second sensors 340 may detect the worker's left shoulder, the middle sensor may detect the worker's head, and the right sensor may detect the worker's right shoulder.

In this case, the information generating unit 380 of the present invention sets and stores distance information corresponding to the highest position among the distance information of the plurality of second sensors 340 as the head position information of the operator.

Even in the algorithm for generating information on the movement, stop, etc. of the operator described above, the precision of the information generation on the movement, stop, etc. of the worker can be increased by generating and utilizing the head position information for each sensing time.

In addition, the information generating unit 380 of the present invention can generate the tracking information generated in time-series of the head position information generated in this way to monitor the behavior characteristics of the worker more accurately, as well as lower the posture or the operator Behavioral actions such as bending can also be recognized.

In the normal case in which an operator performs work while looking at the panel control panel 20 from the front, the second sensor 340 of the present invention detects a body part such as an operator's head, and the first sensor 330 of the present invention is an operator It detects a hand or the like located closer to the panel control panel 20 than the head. Through the dual sensing of the first sensor 330 and the second sensor 340 sensing the different objects as described above, it is possible to generate accurate information about the current task.

Alternatively, as illustrated in FIG. 8, when an operator poses in a direction other than the front, body parts sensed by the first and second sensors 330 and 340 may be changed.

Even if the posture of the worker is lowered, the worker's head is usually located at the highest position. In this state, when the worker's hand is covered by the worker's head, the first sensor 330 cannot detect the worker's hand and detects the worker's head. By sensing, the distance information of the first sensor 330 and the head position information (distance information of the second sensor) may correspond to each other.

In this case, the main control unit 350 of the present invention uses the tracking information to estimate the posture or pose of the worker or the position of the worker's height, and utilizes statistical data on the angle and distance between the hand and the head at the present time. It can be configured to generate work information.

As illustrated in FIG. 8, when the operator's hand is covered by the operator's head, the first sensor 330 or / and the second sensor 340 detects and generates distance information of the body part of the worker closest to the corresponding location Is done.

For example, in FIG. 8 (a), the left second sensor 340-1 indicates the operator's head position, the middle second sensor 340-2 indicates the human shoulder, and the right second sensor 340. -3) detects the waist part of the worker and generates distance information according to the part.

Looking backwards from the perspective of interpreting the signal, the worker's head (A) is located in the direction of the left second sensor (340-1), and the shoulder (B) of the worker in the direction where the second sensor (340-2) is located in the center. ), It can be seen that the operator's waist (C) is located in the direction corresponding to the right second sensor (340-3).

In this way, when the detection signals (distance information) of each of the second sensors 340 are used organically, it is possible to estimate the posture of an operator, etc., and when grafting data on the positional and angular relationship between the head and hand It is possible to estimate what the operation unit 21 associated with the current worker's work is.

In the case of Figure 8 (b), the left and right second sensors 340-1 and 340-3 sense the outer periphery of the worker's head (A, C), and the middle second sensor 340-2 is the operator's crown The case of sensing the portion B is shown.

Even in this case, since the detection signal having the highest position can be confirmed, the head position of the worker can be estimated, and by using the separation distance information provided with the second sensor 340, the reliability of the posture or position estimation of the worker is increased. Can be.

Although the present invention has been described above by way of limited examples and drawings, the present invention is not limited by this, and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the equal scope of the claims.

In the above description of the present invention, the first and second modifiers are only terms of a tool concept used to relatively distinguish components between each other, and thus are used to indicate a specific order, priority, and the like. It should be interpreted as not being a term.

The accompanying drawings and the like for the description of the present invention and the embodiments thereof may be shown in a somewhat exaggerated form in order to emphasize or emphasize the technical content according to the present invention, but the above-described content and matters shown in the drawings In view of this, it should be interpreted that it is obvious that various types of modification examples may be possible at the level of those skilled in the art.

100: control server 200: tag detector
300: malfunction prevention device 310: work information storage unit
320: reference information storage unit 330: the first sensor
340: second sensor 350: main control unit
360: alarm unit 370: tag recognition unit
380: Ministry of Information Generation
30: tag (tag terminal)

Claims (6)

As a malfunction prevention device installed on the upper portion of the panel control panel having a plurality of operation units,
A reference information storage unit that stores reference information that is information on the positions of the plurality of operation units;
A plurality of first sensors provided at a front side of the front panel control panel, provided at positions corresponding to the plurality of operation units based on a vertical direction, and sensing distance information with an object through downward detection; And
And a main control unit that matches the distance information sensed by the first sensor with the reference information to generate work information that is information on a current work object. According to claim 1,
A work information storage unit for storing target work information, which is information in which worker information, a panel control panel as a work target, and information on an operation unit as a work target are interconnected information; And
A misoperation prevention device to which the binary sensor detection system is applied, further comprising an alarm unit for outputting alarm information when the job information does not correspond to the target job information. According to claim 2,
A plurality of second sensors provided in front of the first sensor and sensing distance information to an object through downward sensing; And
Further comprising an information generating unit for generating one or more information of presence or absence of an operator, movement of an operator, or stop of an operator's exact position using distance information sensed by each of the second sensors and detection time difference information of each of the second sensors. A malfunction detection device to which a binary sensor detection system is applied. According to claim 3,
Further comprising a tag recognition unit for recognizing the operator identification information from the tag carried by the worker,
The alarm unit,
In the state in which the information generating unit generates information on the stop of the fixed position, the binary sensor detection system is applied, characterized in that the operator identification information recognized by the tag recognition unit generates alarm information when it does not correspond to the target job information. Anti-tamper device. The method of claim 3, wherein the information generating unit,
Prevention of erroneous operation with a binary sensor detection system, characterized in that the distance information of the highest position among the distance information of each of the second sensors is set as the head position information of the operator and tracking information according to the time of the head position information is generated. Device. According to claim 5, The main control unit,
When the distance information of the first sensor and the head position information correspond to each other, the operator's height position is estimated using the tracking information or the distance information of each of the second sensors, and the operation is performed based on the estimated height position. A tamper-prevention apparatus to which a binary sensor detection system is applied, characterized by generating information.

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