KR101847511B1 - Electric tool recognizing predetermined worker - Google Patents

Abstract

The present invention relates to an electric tool recognizing a specific worker, performs various types of powering operations such as tightening of a nut by using axial torque of an electric motor built in, and comprises: a worker recognition module for extracting information about the worker and generating an authentication signal when the worker coincides with the worker registered in advance through the information; a locking module which unlocks the electric tool when the authentication signal is received and maintains a locked state of the electric tool when the authentication signal is not received; and an operator environment loading unit for identifying each worker to be authenticated through the worker recognition module and loading each individual tool setting value.

Description

[0001] ELECTRIC TOOL RECOGNIZING PREDETERMINED WORKER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power tool capable of carrying out various kinds of power operations such as a drilling operation, a tightening operation for a nut, etc., using a torque of an electric motor or the like.

In the past, power tools have been developed in the direction of enhancing the inherent functions such as tightening, drilling, and safety performance for workers. Since then, the development direction has focused on the ease of use and the efficiency of work. In recent years, with the rapid development of smartphone-related technology, attempts have been made to integrate smart technology into relevant products regardless of the industrial fields.

There have been various problems associated with the use of power tools in the workplace, particularly when applied to power tools used in industry. For example, in the entire work schedule in the workplace, an operator is designated for each power tool according to the work contents. As a result, if an operator other than the designated worker uses the power tool, there may arise a problem that a work defect occurs.

In addition, some workers tend to place the power tool at a location other than the designated work line when the assigned work time expires. This may lead to work failures, for example, after another worker unconsciously uses a power tool other than the originally designated power tool.

In addition, the novice worker has often made confusing mistakes about the work line, ie the work path, that needs to be moved in sequence. That is, the worker has caused a work defect due to the fact that the manager leaves the work line predetermined in advance and moves to another work line or the like.

Korean Registered Patent No. 1-1292112 (registered on July 26, 2013) Korean Registered Patent No. 10-1549493 (registered on Aug. 27, 2015) Korean Registered Patent No. 10-1116151 (Registration date February 27, 2012) Korean Registered Utility Model No. 20-0462975 (registered on October 5, 2012)

The embodiments of the present invention have been devised to solve the problems as described above, and only a specific registered worker can release the locked state of the power tool to perform the power operation. Also, if any one of the various lock conditions is met, an automatic lock is made to limit the use of the power tool. Further, not only by the operator but also by the person who manages the workplace, the power tool can be controlled to be locked or unlocked.

Also, when the work line is changed, the setting value of each kind of tool can be automatically changed according to the work line. In addition, it is intended to improve the working efficiency through a display unit which can display the current position of the work place and various work information on the power tool.

In order to solve the above-described problems, an embodiment of the present invention provides an electric power tool for performing various types of electric power tools for tightening a nut by using a shaft torque of a built-in electric motor, An operator recognition module for generating an authentication signal when the operator coincides with an operator registered in advance; A lock module for unlocking the power tool when the authentication signal is received, and maintaining the locked state of the power tool when the authentication signal is not received; And an operator environment loading unit that identifies an operator to be authenticated through the operator recognition module and loads each individual tool setting value.

The operator recognition module may be any one of a fingerprint recognition module for extracting fingerprint information for an operator, an iris recognition module for extracting iris information for an operator, and a number recognition module for extracting password information given only to a registered worker have.

Wherein the lock condition includes at least one of: 1) whether or not each work line has been set in advance according to a time, 2) whether or not the permitted work end And 3) whether or not the total work time allowed per worker has been exceeded for each worker, and 4) whether or not the operation failure has occurred consecutively for a predetermined number of times, and the lock module determines whether the lock condition is satisfied Thereby locking the power tool.

And a wireless communication module for wirelessly communicating with the main server unit located in the workplace, wherein the memory unit can be synchronized with the new lock condition updated by the manager through the wireless communication module.

A position tracking sensor for detecting position information of the power tool within the workplace; And a display unit for displaying the operation information of the power tool, wherein the work area is divided into a plurality of preset zone zones, and the actual measurement position detected by the position tracking sensor is a position It is preferable to switch to any one and display it as a zone position.

The zone location may be displayed on the display unit in text form.

At least one preset value set for each job is stored in the power tool, and the set value for each job can be automatically changed according to the content of the zone area changed when the zone position is changed.

The display unit may include a virtual image device for generating work information on a surface of a workpiece.

As described above, according to the present invention, various effects including the following can be expected. However, the present invention does not necessarily achieve the following effects.

The power tool according to an embodiment of the present invention mounts a worker recognition module on a main body and the like so that an electric work can be performed only for an operator registered in advance. Further, the operator can be identified and the setting value of the power tool can be automatically changed to suit each operator.

In addition, the power tool is automatically locked against various locking conditions to prevent the occurrence of work defects and the like. On the other hand, the power tool further includes a wireless communication module, and can be synchronized immediately when the lock condition is updated by the manager.

Meanwhile, the power tool may further include a position-tracking sensor to provide the current position information of the power tool to the operator. The position information is provided in the form of a text for the zone area for identifying the work area, give. Further, when the position of the power tool is changed according to the work path, the position change is recognized and the setting value for each task is automatically changed.

Further, the display unit can generate work information on the surface of the workpiece and the like, so that the operator can easily grasp the status of the electric work or the power tool.

1 is a schematic view showing a power tool according to an embodiment of the present invention;
2 is a schematic diagram of a system for location tracking and wireless communication of the power tool of FIG.
Fig. 3 is a schematic view showing a display section when the power tool of Fig. 1 is located within a zone area; Fig.
4A and 4B are schematic views of a display unit according to another embodiment;

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

FIG. 1 is a schematic diagram showing a power tool according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a system for position tracking and wireless communication with the power tool of FIG. 1 and 2, a power tool recognizing a specific worker includes a worker recognition module 20, a lock module 30, a position tracking sensor 40, a display portion 50, a memory portion 60, A communication module 70, an operator environment loading unit 80, and the like. Here, the electric power tool covers all kinds of electric motors, such as an electric motor 10, which generate torque by using the shaft torque of the electric motor 10 and can perform various kinds of electric motions such as fastening of the nut by using the torque.

The power tool according to an embodiment recognizes a specific worker in addition to the components that existed to perform the original electric work, thereby switching the lock state, tracking the position of the power tool, and communicating with the power tool The above-described components are further required.

The worker recognition module 20 extracts information on the worker and generates an authentication signal when the worker coincides with the worker registered in advance through the extracted information. The worker recognition module 20 includes a fingerprint recognition module for extracting fingerprint information for an operator, an iris recognition module for extracting iris information for an operator, and a number recognition module for extracting password information given only to a registered worker .

The fingerprint recognition module extracts fingerprint information which is one of the biometric information about the human body. This is one of the commonly used user authentication technologies. The iris recognition module extracts iris information, which is another one of the biometric information about the human body. Iris information has been used as a means of identifying a person by analyzing the shape and color of the iris, capillaries distributed in the retina, and the like. The iris information has more individual characteristics than the fingerprint information, so even if wearing glasses or a lens, individual can be accurately recognized. In addition, the iris recognition module has an advantage of being operated in a non-contact manner unlike a fingerprint recognition module.

The number recognition module extracts the password information given only to the operator registered in advance. That is, the password is exposed only to a specific worker, so that the authority to use the tool is limited to a specific worker. The number recognition module includes, for example, a button portion in which numbers and the like are displayed, which is similar to a password key device distributed on the market. That is, the number recognition module is formed in the power tool so that a specific worker who has been given a password can directly input the password.

The worker recognition module 20 is disposed so as to be exposed externally to the main body of the electric power tool and allows the worker who is assigned the electric power tool before work to confirm in advance whether he or she matches with one of the specific workers registered in advance. That is, the worker recognition module 20 allows the worker to register a work permit for the electric power tool, so that the electric work can be performed only.

The lock module 30 unlocks the power tool when the authentication signal is received, and maintains the locked state of the power tool when the authentication signal is not received. Such locking or unlocking may be implemented in such a way as to power off the power tool via software or hardware methods.

The lock module 30 may further include a memory unit 60 for storing at least one preset lock condition. The memory unit 60 may be a main memory used in a conventional power tool and may alternatively be a dedicated auxiliary memory capable of storing only data related to the worker recognition module 20 and the lock module 30. [

In the case of an auxiliary memory, the memory unit 60 may be embedded in the body of the power tool, or alternatively may be in the form of an expandable and removable external memory card. For example, the memory unit 60 may be an sd card, a micro sd card, or the like.

The lock conditions stored in the memory unit 60 include: 1) whether or not each work line has been set in advance according to the time, 2) whether or not the permitted work end time has been exceeded, and 3) And 4) whether or not the operation failure has occurred consecutively for a predetermined number of times. To this end, the power tool can be synchronized with the world standard time and the like. On the other hand, the lock module 30 locks the power tool when the above-described lock condition is satisfied.

The electric power tools in the work place are designed to perform the electric work on the preset work line according to the time by electric power tool. Thus, when the power tool leaves the working line at a specific time, the locking condition is met and the power tool is automatically locked. At this time, whether or not the power tool has deviated from the work line can be implemented through the position tracking sensor 40. [

The daily working time of the worker is determined in accordance with the regulations and regulations. Based on this, the work start time and work end time of the worker are adjusted respectively. At this time, the lock condition according to one embodiment is based on the operation end time in particular.

In addition, the total allowable working time per worker may be limited. The registered worker can release the locked state through the worker recognition module 20 and can perform the motorized work assigned to him / her even if the worker is changed during the work due to shift work or the like. That is, the power tool can limit the use of the power tool by locking the power tool according to whether the total work time accumulated per worker is calculated and exceeded the allowable total work time.

In addition, the operator may cause work defects due to carelessness or mistakes during the work. However, if the power tool is instantly locked even with respect to one-shot mistakes, the productivity of the workplace may deteriorate. Therefore, the power tool is automatically locked only when a failure of operation occurs consecutively a predetermined number of times.

The above-described locking conditions are merely a plurality of specific examples, but are not limited thereto. That is, in addition to the locking conditions described above, the power tool can be locked in response to an arbitrary decision by an administrator who manages a plurality of workers in the workplace, or an unexpected emergency situation occurring in the workplace. However, in order to implement this technically, the power tool must further include a wireless communication module 70 capable of communicating.

The power tool may further include a wireless communication module 70 that wirelessly communicates with the main server unit 100 located in the workplace. That is, the plurality of power tools disposed in the workplace can perform bidirectional communication with the main server unit 100 by the wireless network.

For example, Bluetooth, ZigBee, or the like, which is a standard technique for short-range communication, may be used for wireless communication. Data transmission distance by Bluetooth is supported up to 100 meters depending on the power level specified in the standard. On the other hand, ZigBee is a standard protocol for implementing home automation, etc., and can support wireless communication with low cost and low power such as Bluetooth.

At this time, the memory unit 60 may be synchronized with the new lock condition updated by the manager via the wireless communication module 70. [ There are some differences in lock conditions for each power tool. It is inconvenient and troublesome to erase the contents of the memory unit 60 included in each power tool and to record and record new contents again in order to change the locking conditions for the plurality of power tools. Also, this method has a disadvantage in that it can not be quickly coped with when the lock condition is suddenly changed during the operation. Accordingly, the memory unit 60 according to one embodiment is changed to be able to be updated quickly through the wireless communication module 70. [

The lock module 30 can lock the power tool when the lock condition is met and release the lock when the lock condition is met. The unlocking condition includes whether the worker directly performs a releasing process having a plurality of preset steps or whether the locking state is directly released using the main server unit 100 or the like for each power tool monitored by the manager .

Meanwhile, the worker environment loading unit 80 identifies the worker to be authenticated through the worker recognition module 20 and loads each individual tool setting value. That is, the operator environment loading unit 80 automatically calculates the tool setting values corresponding to the operator environment for the operator who has undergone the authentication procedure, for example, considering the personal characteristics such as the physical condition of the operator or the work contents assigned to each operator . These settings include, for example, the magnitude of torque optimized for each process, the rotational speed of the motor, and the minimum and maximum values of the current flowing into the motor.

In addition, the power tool can recognize the time, place, operator change, manager's intention, etc., and automatically change the tool setting value. This can be realized by communication with the main server unit 100 using the wireless communication module 70 and the position tracking sensor 40 to be described later.

In addition, the power tool can store a comprehensive work record related to the work content, the worker change, and the like in the middle of the daily work through the memory unit 60. As a result, the manager can easily manage the work quality and the like for each worker.

Meanwhile, the power tool according to one embodiment may further include a position tracking sensor 40 for detecting position information of the power tool within the workplace. The location tracking sensor 40 may be, for example, a GPS sensor. GPS (Global Position System) is a system that confirms its position through satellites floating around the earth. Such a position tracking sensor 40 can confirm the position of the power tool in real time in a limited space such as near and inside, and can track the change in the position of the power tool. In order to track the position of the real-time power tool through the position tracking sensor 40, for example, a method of additionally arranging the base station 150 and the WiFi network in the workplace can be utilized.

Fig. 3 is a schematic view showing the display unit when the power tool of Fig. 1 is located in any zone area. Fig. Referring to FIG. 3, the work area in which the power tool is actually disposed is divided into a plurality of preset zone zones 200, and the actual measurement position detected by the position tracking sensor 40 at this time is a zone area 200, and is displayed as a zone position. That is, the power tool provides position information on the actual zone, that is, the zone zone 200 to which the actual measurement position belongs, not the actual measurement position. On the other hand, the zone area 200 is expressed in the form of a zone position.

The zone area 200 corresponds to a case where the manager divides the work area for convenience according to the arrangement of the work line, the allowable space that the worker can move, and the like. This is because information on which zone area 200 in the current workplace is more useful than the exact actual position of the power tool in terms of the manager and the worker.

At this time, it is preferable that the zone position is displayed on the display unit 50, particularly in the form of text. The text allows the operator to quickly recognize the current zone zone 200. The marking method for the zone position may be, for example, a combination of alphabets and numbers such as A1 and A2. As a result, the novice operator can easily grasp the current position, whether or not the robot is moving properly according to the preset work path, and the like. On the other hand, the display unit 50 may display only the information on the current zone position, and may include the entire work path or the like.

On the other hand, at least one set value for each work preset in advance may be stored in the power tool. The set values for each task are stored in the memory 60 or the like, for example. The set values for each task include various setting values that must be changed in consideration of the work path, that is, the work contents depending on the place. The set value for each task can be automatically changed in accordance with the contents of the work of the zone area 200 to be changed when the zone position is changed. Therefore, when the operator moves from one zone zone 200 to another zone zone 200, there is no need to change the setting value.

The display unit 50 displays operation information on the power tool. The display portion 50 may be a general liquid crystal display (LCD), for example, disposed in the body of the power tool. Meanwhile, the degree of interest of the worker is different according to the skill level of the worker, and the display unit 50 preferably provides other work information depending on the worker.

For example, the novice worker needs information on the entire work path including the zone area 200 where he / she is present, the contents of work according to the zone area 200, and the zone area 200 to be moved next . On the other hand, a skilled worker needs more information about the current progress of the work, the current situation check on the total workload per day, and so on.

However, the display unit 50 can not collectively display information on all work contents due to its limited size. Accordingly, the display unit 50 may further include a selection button unit (not shown) that can selectively display information on the job content.

4A and 4B are schematic views of a display unit according to another embodiment. 4A and 4B, the display unit 50 may be a virtual image device that generates work information directly on a surface of a workpiece, unlike a general liquid crystal display device. In this case, the display unit 50 can display, for example, an operation progress or an operation failure, which can be easily confirmed according to the operation information. Or when the surface state of the workpiece is irregular or complicated and it is difficult to generate job information, the work information is displayed with a simple visual representation in the form of a bar (see FIG. 4-1) or a ring (see FIG. 4-2) Can be generated and displayed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10: electric motor 20: operator recognition module
30: Locking module 40: Positioning sensor
50: display unit 60: memory unit
70: Wireless communication module 100: Main server unit
200: Zone area 80: Worker environment loading section

Claims (8)

1. An electric power tool for performing various types of motor-driven electric motions of a nut by using a shaft torque of an electric motor,
An operator identification module for extracting information on an operator and generating an authentication signal when the operator matches the operator registered in advance through the information;
A lock module for unlocking the power tool when the authentication signal is received, and maintaining the locked state of the power tool when the authentication signal is not received;
An operator environment loading unit for identifying an operator to be authenticated through the operator recognition module and loading individual tool setting values;
A display unit for displaying operation information of the power tool; And
The position information of the power tool is detected in a work space divided into a plurality of zones that are set in advance and the detected actual measurement position is switched to any one of the zone regions and displayed in a text position on the display unit as a zone position A position tracking sensor for detecting a position of the object,
Wherein the power tool recognizes a specific worker in which at least one set value for each job that is automatically changed in accordance with the job content of the zone area is set and stored in advance when the zone position is changed.
The method of claim 1, wherein the operator recognition module
A fingerprint recognition module for extracting fingerprint information for an operator, an iris recognition module for extracting iris information for an operator, and a number recognition module for extracting password information given only to a registered worker, tool.
The method according to claim 1,
Wherein the lock module further comprises a memory unit for storing at least one preset lock condition,
The lock condition may be any of 1) whether or not each work line has been previously set according to the time, 2) whether the allowed work end time has been exceeded, and 3) whether the total work time allowed per worker has been exceeded ego,
Wherein the lock module recognizes a specific worker locking the power tool if the lock condition is met.
The method of claim 3,
And a wireless communication module for wirelessly communicating with the main server unit located in the workplace,
Wherein the memory unit recognizes a specific worker to be synchronized to match a new lock condition updated by an administrator via the wireless communication module.
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