KR20010026696A - Method for automatically measuring line of balance and apparatus thereof - Google Patents

Abstract

PURPOSE: The method for measuring business efficiency according to person is provided to enhance a productivity by searching a process line needing the most time or outputting the least quantity and improving the process. CONSTITUTION: A business efficiency automatically measuring system is initialized by turning on a power of a computer(S101). It is checked as to whether a work starting command signal is received or not(S103). It is checked as to whether a working time signal is received from one out of a plurality of personal switching boxes if a work starting command signal is received(S105). If a working time signal is received, the working time by persons is calculated(S107). At this time, a calculation of working time by persons displays a time value of the corresponding switching box and a working efficiency by persons, and a calculated working time is displayed by calculating working time of the corresponding switching box. It is checked as to whether the working is terminated(S109). If the working is terminated, working efficiency data by persons are stored as a file and the business efficiency automatically measuring system is closed(S111).

Description

Method for automatically measuring work efficiency for each person and apparatus for performing the same {Method for automatically measuring line of balance and apparatus}

The present invention relates to a method for automatically measuring work efficiency for each person and an apparatus for performing the same. More specifically, the method for automatically measuring work efficiency for each person for automatically measuring work performance of a plurality of workers working in a licensed production line and It relates to an apparatus for performing this.

The biggest problem for the licensee is the distribution of work for each worker. In particular, in the case of a production site consisting of a line, if the individual work distribution amount is not constant, there is a problem in that unbalance of the work occurs and a problem occurs in the production of the product.

To solve this, measure the standard time required for work and distribute the work accordingly. However, depending on the proficiency and work speed of each worker, distributing the work correctly may not be smooth.

To eliminate this problem, the manager of the approved line manages the worker's TACT TIME daily or weekly. At this time, a stopwatch is used. It is possible to check the personal work time by measuring 10 to 20 times of visual work at a visible distance, for example, about 1M away from the worker, and calculating the arithmetic average. The line efficiency (LOB: Line of Balance or Line Balancing) is calculated by using the work time measured for each individual.

This work is usually performed by the authorized line manager, and it takes about 4 to 6 hours to draw a LOB graph of one line, and there is a problem that it is difficult to calculate accurate work performance with 10 to 20 measurement times.

As such, it is difficult for the authorized line manager to manually manage the individual work time and line efficiency by hand, which requires a lot of time, and it is difficult to derive accurate data.

Accordingly, the present invention has been made to solve such a problem, the first object of the present invention is to reduce the time required to measure the individual work efficiency in the approved production line, and also to derive accurate work efficiency data for each individual It is to provide an automatic measuring method for individual work efficiency.

It is also a second object of the present invention to provide a device for automatically measuring an individual work efficiency suitable for performing the above method.

1 is a structural diagram of a device for automatically measuring work efficiency according to an embodiment of the present invention.

2 is an example of a line knitting efficiency management table according to an embodiment of the present invention.

FIG. 3 is a circuit diagram of the switch box for measuring line efficiency given to each individual shown in FIG. 1.

4 is a flowchart illustrating a method for automatically measuring work efficiency for each individual at the computer side of FIG. 1.

5 is a flowchart illustrating a method for automatically measuring work efficiency for each individual at the switching box side of FIG. 1.

<Description of the code | symbol about the principal part of drawing>

100: switching unit 110: power supply unit

120: alarm signal output unit 130: switching unit

140: calculator 142: oscillator

144: timer 146: address generator

148 control unit 150 communication unit

200: input / output interfacing unit 300: computer

According to one aspect of the present invention, there is provided a method for automatically measuring individual work efficiency according to one aspect of the present invention.

Initializing a work efficiency automatic measurement system by turning on power;

Checking whether a job start command signal is received from the computer;

Checking whether a work time signal is received from an individual switching box when a work start command signal is received in the step;

Calculating a work time for each individual when a work time signal is received in the step; And

If it is checked whether the work is terminated by checking whether the work is finished, storing the work efficiency data file for each individual, and ending the automatic work efficiency measurement system.

In addition, the work efficiency automatic measurement system for each individual according to one feature for realizing the second object of the present invention, in the work efficiency measurement system for measuring the work performance of a number of workers working in the authorized line,

A switching unit having at least one line efficiency measuring switch connected in series to each line operator and outputting a work start signal and a work completion signal according to the operator's manipulation;

An input / output interfacing unit configured to receive the operation start signal or the operation end signal and output operation efficiency information of a corresponding line; And

The computer may receive the work efficiency information from the input / output interfacing unit, add the work efficiency information to the previous work efficiency information, and output the work efficiency information for each worker.

According to such a method for automatically measuring work efficiency for each person and an apparatus for performing the same, the work time for each worker in the production line can be measured by the worker himself, and thus the work efficiency can be managed more accurately and efficiently.

Then, embodiments will be described so that those skilled in the art can easily implement the present invention.

1 is a structural diagram of a device for automatically measuring work efficiency according to an embodiment of the present invention.

As shown in FIG. 1, the apparatus for automatically measuring individual work efficiency according to the present invention includes a switching unit 100, an input / output interfacing unit 200, and a computer 300.

The switching unit 100 is composed of at least one or more line efficiency measuring switch boxes 100 · 1, 100 · 2, ... 100 · (n-1) and 100 · n distributed one by one to a plurality of operators, The operation start signal and the operation completion signal are output to the input / output interfacing unit 200 according to the start and end of the work, for example, the operator's manual operation according to the start and end of the product assembly.

The input / output interfacing unit 200 receives a job start signal or a job end signal from the switching unit 100 and outputs information corresponding to the work efficiency of the corresponding line to the computer 300.

The computer 300 receives the current work efficiency information from the input / output interfacing unit 200, stores the work efficiency information for each individual by adding it with the previous work efficiency information, and displays the same. In this case, the efficiency information stored in the computer 300 may be stored in various forms according to the setting of the authorized line manager, for example, may be the work efficiency of each worker, or may be the work efficiency information of all workers by time group. .

2 is an example of a line knitting efficiency management table according to an embodiment of the present invention.

As shown in FIG. 2, the form that can be displayed by the computer 300 is a distribution diagram capable of grasping at a glance the work efficiency of a production line worker performing each process required until the finished product in accordance with the process order. It is also possible to print a line plot efficiency measurement control table including a bar graph form which is a graph.

You can also display the bar graph only display data through the monitor.

FIG. 3 is a circuit diagram of a switch box for measuring line efficiency, which is shown in FIG. 1 and given to each line worker individual.

Referring to FIG. 3, the line efficiency measuring switch boxes 100 · 1, 100 · 2, ... 100 · (n-1) and 100 · n according to the present invention are provided with a power supply unit 110 and an alarm signal output unit. 120, a switching unit 130, a calculating unit 140, and a communication unit 150.

The power supply unit 110 receives a power supply voltage provided from the outside, preferably a voltage of 12 volts, and lowers the voltage level thereof so that the switching boxes 100 · 1, 100 · 2, ... 100 · (n-1) And 5 volts of driving power to the respective chips of 100 n).

The alarm signal output unit 120 receives the alarm signal corresponding to the start or completion of the work of the user from the calculator 140 to generate a signal that can be recognized by the operator or the manager. As an example, the alarm signal generator 120 generates a buzzer sound including a resistor R2 for receiving and receiving an alarm signal and a buzzer M2 for converting and outputting the alarm signal down to a sound signal. Or a lamp (not shown) for converting the leveled down alarm signal into a light emitting signal and outputting the light emitting signal.

The switching unit 130 is turned on / off according to a user's manual operation and provides the corresponding on / off signal to the calculator 140.

The operation unit 140 includes an oscillator 142, a timer 144, an address generator 146, and a controller 148. When the operation unit 140 receives an on / off signal from the switching unit 130, an alarm signal is output. It is provided to the alarm signal output unit 120 to drive the alarm signal output unit 120, and outputs the corresponding time information provided from the timer 144.

In more detail, the oscillator 142 provides an oscillation signal to the controller 148 to oscillate the controller 148.

The timer 144 receives the driving power from the power supply 110 and outputs a predetermined timer value at each set time. Preferably, in order to supply a stable power supply voltage, the timer 144 includes a watch dog timer, and provides a predetermined time value to the controller 148 at a predetermined time set by the user, and also controls the controller 148. It monitors whether or not it performs normal operation.

The address generator 146 has one end connected to the driving power supply terminal and the other end connected to the chip terminals P10 to P17 of the control unit 148 to include a resistor unit including a plurality of resistors for leveling down the driving power supply. A computer according to the on / off signal of the switching unit 130 according to the operator's operation, including a switch unit consisting of a plurality of switch terminals connected to the other end of the resistor portion and the other end is grounded and formed in a type that can be preset by the production line manager. The control unit 148 provides the set address value to recognize the line operator 300.

When the controller 148 receives the on / off signal from the switching unit 130, the controller 148 outputs an alarm signal to the alarm signal output unit 120 to drive the alarm signal output unit 120, and provides the alarm signal output unit 120 from the timer 144. The corresponding time information is output to the communication unit 150.

The communication unit 150 receives the information corresponding to the business hours from the operation unit 140 and switches the level to output the line efficiency measurement switch box at the rear end connected in series through the connectors CN1 to CN2, and if the line efficiency is measured When the switch box is connected to the input / output interfacing unit 200, the switch box outputs the input / output interfacing unit 200.

Preferably, the communication unit 150 includes a MAX485 chip, and is bi-directionally connected to the computer main body through the input / output interfacing unit 200 to provide visual information by the control unit to the computer main body. In addition, it is input from the computer 300, the level provided by the control unit 148, that is, the RS232 signal level conversion to the RS485 signal to reduce the effect of noise generated in the connection line between the components and outputs. At this time, the MAX485 chip used in the communication unit 150 has an advantage that noise does not occur even if the wire line proceeds to about 1.2 kilometers.

As described above, in the embodiment of the present invention, the line efficiency measurement switch box is distributed to the worker working in each of the applied lines in series to provide the computer 300 with information corresponding to the start and end of the work. This type of serial distribution is possible because it is connected to the input / output connectors CN1 and CN2 of the communication unit 150, and it is possible to flexibly use the automatic efficiency measuring system even if the number of workers working in the approved line increases or decreases. . It is natural that the desired object of the present invention can be achieved by simply changing the structure diagram and the circuit on the switching box applied to the automatic efficiency measuring system of the present invention even when the switching box is connected in parallel without being connected in series. .

Hereinafter, the operation of the individual work efficiency automatic measurement apparatus will be described.

4 is a flowchart illustrating a method for automatically measuring work efficiency for each individual at the computer 300 of FIG. 1.

1, 3, and 4, first, the computer 300 is powered on to initialize the work efficiency automatic measurement system (step S101).

Then, it is checked whether or not a job start command signal is received from the computer 300 (step S103).

When the job start command signal is received in step S103, reception of the signal for working hours from one of the individual switching boxes 100 占, 100 占, ... 100 占 (n-1) and 100 占It is checked whether or not it is (step S105).

When a signal for working hours is received in step S105, the individual working hours are calculated (step S107). At this time, the calculation of the work time for each individual displays the time value of the corresponding switching box, displays the individual work efficiency accordingly, and also calculates the work time of the switching box, and displays the calculated work time. Here, when the individual work efficiency data for the workers working on a plurality of production lines are displayed through the monitor of the computer 300, the data of the worker with the best work efficiency may be displayed to be distinguished from the work data of other workers.

Then, it is checked whether or not the work is finished (step S109). If it is checked in step S109 that the work is finished, the individual work efficiency data is stored in a file, and the work efficiency automatic measurement system is terminated (step S111).

In step S105 of checking whether or not a signal for working hours is received from the individual switching box, the switching boxes 100 · 1, 100 · 2, ... 100 · (n-1) and 100 · n given to each individual The operation of with reference to FIG. 5 is as follows.

5 is a flowchart illustrating a method for automatically measuring work efficiency for each individual at the switching box 100 side of FIG. 1.

As shown in Fig. 5, first, the timer 144 of the personal switching boxes 100 占, 100 占, ... 100 占 (n-1) and 100 占 n and the transmission port which is the communication unit 150 are first connected. Initialize (step S201).

Then, it is checked whether or not the efficiency measurement start signal is received from the computer 300 (step S203). When the efficiency measurement start signal is received, the timer 144 is driven to increase the time value (step S205).

Subsequently, the individual line efficiency measurement switch 130 is checked to be turned on or off, and when it is turned off (step S207), when the individual line efficiency measurement switch 130 is on, the buzzer of the alarm signal generator 120 is turned on. (M2) is driven (step S209).

Subsequently, it is checked whether the time value is a set value, for example, 6 seconds or more, and if the time value is less than 6 seconds, the flow returns to step S207 (step S211).

Subsequently, if the timer value is 6 seconds or more, the state of whether the data transmission line is busy or empty is checked. If the data transmission line is busy, the data transmission operation is waited (step). In step S213, when the data transmission line is in an empty state, a time value that is a signal for a business time is transmitted (step S215). At this time, the data transmission line is a transmission line connecting the line efficiency measurement switch box and the adjacent line efficiency measurement switch box distributed to each individual, or a transmission line connecting the line efficiency measurement switch and the input / output interface 200, Alternatively, it may be a transmission line connecting the input / output interfacing unit 200 and the computer 300.

The timer value output by the timer 144 is then initialized and fed back to step S207 (step S217).

As described above, according to the present invention, it is possible to automatically measure the work efficiency of each individual worker from the initial process of product production to the final process of product completion, especially in the authorized line, etc. It is also possible to manage individual work performance based on measured data.

While the foregoing has been described with reference to preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

As described above, according to the present invention, the waste of the neck process, which is the process line producing the most production time or the smallest output within the same time according to the present invention, is found and improved, thereby maximizing the efficiency of the production line formation and productivity. Can improve.

In addition, it is possible to zero management man- agement by automating production line organization efficiency measurement, and to automatically process process analysis of product production and management of workers' history, thereby eliminating papers related to work management to realize paperless. Can be.

In addition, it is possible to secure the transparency of the process organization efficiency on the basis of the actual working time, and in the past can be measured in real time in the measurement of about once a week for process management, it is possible to shorten the measurement time of the organization efficiency.

Claims (6)

In the work efficiency measurement method for measuring the work performance of a number of workers working in the authorized line, Initializing a work efficiency automatic measurement system by turning on power; Checking whether a job start command signal is received from the computer; Checking whether a work time signal is received from an individual switching box when a work start command signal is received in the step; Calculating a work time for each individual when a work time signal is received in the step; And If it is checked whether the job is terminated by checking whether the job is terminated, storing the work efficiency data file for each individual, and automatically closing the work efficiency automatic measurement method comprising the step of automatically measuring the work efficiency. The method of claim 1, wherein the step of checking whether or not to receive a signal for working hours from the personal switching box is Initializing a timer and a transmission port of the personal switching box; Checking whether the efficiency measurement start signal is received from a computer and if the efficiency measurement start signal is received, driving the timer to increase a time value; Checking the on / off of the personal line efficiency measurement switch and, if off, transmitting the counted timer value; Driving the buzzer when the individual line efficiency measurement switch is turned on; Checking whether the timer value is greater than or equal to the set value; Checking a state of a transmission line and waiting for data transmission when the transmission line is busy; Transmitting a timer value which is a signal for a business time when the transmission line is empty in this step; And And initializing the timer value and feeding back the step of checking the on / off of the personal line efficiency measuring switch. The method of claim 1, wherein the calculating of the individual working hours Displaying a time value of the corresponding switching box; Displaying work efficiency for each individual; And Computing the work time of the switching box, and displaying the calculated work time automatically measuring the individual work efficiency. In a work efficiency measurement system for measuring the work performance of a number of workers working in the authorized line, A switching unit having at least one line efficiency measuring switch connected in series to each line operator and outputting a work start signal and a work completion signal according to the operator's manipulation; An input / output interfacing unit configured to receive the operation start signal or the operation end signal and output operation efficiency information of a corresponding line; And And a computer for receiving the work efficiency information from the input / output interfacing unit and adding the work efficiency information to the previous work efficiency information to output work efficiency information for each worker. The method of claim 4, wherein the line efficiency measurement switch A power supply unit configured to receive a power voltage and generate driving power; An alarm signal generator; A switching unit controlled on / off according to a user's manual operation; An oscillator for outputting an oscillation signal, a timer for receiving a predetermined time value at every set time by receiving the driving power, an address generator for outputting an address value set by a user's operation, and an oscillator according to the oscillation signal And a controller configured to drive the alarm signal generator according to on / off control of the switching unit and to output the time value and the set address information. And Automatic efficiency measuring device for each individual comprising a communication unit for receiving the information corresponding to the business hours from the operation unit for level switching output. The method of claim 6, wherein the communication unit When the individual work efficiency information is received from the previous line efficiency measuring switch connected in series, the individual work efficiency automatic measuring device bypasses the provided individual work efficiency information to the line efficiency measuring switch after the serial connection.