KR20030081627A - Time cut off device - Google Patents

Abstract

PURPOSE: A time cut-off device is provided to restrict use time of electric appliances and divide the set time limit, thereby preventing excessive use of a TV and a computer and realizing self-management. CONSTITUTION: A power input unit(10) is connected to an outlet receiving power supply. A power output unit(20) connects a power input terminal of an electric appliance for restricting use time. A key input unit(30) generates a key signal for setting the time limit. A power supply unit(40) provides power supply to the power output unit, drops the power supply through an inner transformer, and rectifies supplying operation. A control unit(80) controls use time limit of the electric appliance connected to the power output unit. A switching unit(60) is switched according to a control signal of the control unit for regulating power supply supplied to the electric appliance. A load monitoring unit(70) monitors the use of the electric appliance through generation of electromotive force in a power line for providing the result to the control unit. A memory stores the set time limit, a password, and accumulated time. A display unit(100) displays the current time, the set time limit, the residual time, an alarm set time. A battery(50) supplies backup power supply to the control unit and the memory if external power supply input is cut off.

Description

Time cut off device {TIME CUT OFF DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timer device, and more particularly, to a time cut-off device for limiting the use time for electronic products such as computers and televisions, and for dividing the set time limit.

In general, with the development of technology and the improvement of living standards, popularization of electronic products such as personal computers (PCs), televisions, VCRs, DVDs, etc. has become popular. The range of use is expanded to schools, schools, and PC rooms.

In the past, such PCs were mainly used for simple document editing or computational work. However, with the development of various programs, their use has been extended to professional work such as CAD work, graphic design, games, and the Internet. .

As a result, they are addicted to working with PCs, addicted to searching for information through the Internet, online games, and offline games using CD titles. There is a problem that the loss of life due to the occurrence of disease, even game addiction caused by the exposure of the game.

In particular, in the case of general households, children who lack self-management, elementary and junior high school students are addicted to games and the Internet, and are neglected to learn.

Therefore, in order to solve this problem, a method of limiting the use time of a PC is provided in the related art by setting a time through a timer built in the PC, but in this case, a person who is used to using a PC may arbitrarily set the time limit. It can be manipulated by the system, which causes a problem that the fundamental time limit cannot be achieved.

In order to improve the above problems, a separate device that functions as a timer is connected to the outside of the PC to limit the use time, but this also allows the user to operate the time limit arbitrarily with a simple operation of the user. For example, when the time limit is set once, the counter of the time progresses continuously and thus has a disadvantage in that the limited time cannot be utilized efficiently.

If the time limit is continuously counted as described above, students in school or academy are obsessed with the assigned time limit, and their academic achievement is lowered. Cause problems.

In addition, there is no means to warn you when the time is approaching a limited time, and during the work that is important for a limited time, power down causes the hard work data to be lost, resulting in the distrust of the timer. do.

The present invention has been invented to solve the above problems, by connecting to an electronic product requiring a limit of the use time to limit the use time of the electronic product, by dividing the assigned time limit to use the electronic It is intended to provide efficiency in the use of the product.

In particular, by connecting to a TV or a PC, the children can prevent addiction to the Internet, games, TV, etc., which are insufficient for their self-management, and promote their own time management by using a PC and watching TV for a limited time. It encourages management and learning.

1 is a block diagram illustrating a time cutoff apparatus according to the present invention;

<Brief description of the main parts of the drawing>

10: power input unit 20: power output unit

30: key input unit 40: power supply unit

50: battery 60: switching unit

70: load monitoring unit 80: control unit

90 memory unit 100 display unit

The present invention for realizing the above object, the power input unit is connected to the power outlet; A power output unit for connecting a power input terminal of the electronic product for limiting the use time; Key input unit which has up / down key, set key and predetermined function key and generates key signal for setting timeout, setting password, setting and changing current time, setting alarm time, etc. Wow; A power supply unit supplying power supplied through the power input unit to the power output unit, dropping through an internal transformer, and then rectifying and supplying operating power to each element at a constant voltage; A control unit configured to include a main memory to store a main program, and to control a use time limit of an electronic product connected to a power output unit through operation control and execution of a program through the main program; A switching unit which switches according to a control signal of the control unit and regulates power supplied to an electronic product connected to a power output unit; A load monitoring unit for monitoring whether the electronic device connected to the power output unit is used through generation of electromotive force in the power line and providing information on the control unit to the control unit; A memory unit which is configured as an element of an EEPROM that is easy to read / write without loss of stored data without a power supply, and stores a set time limit, a password, and an integration time; A display unit configured of a seven segment display device or an LCD display device and configured to display a current time, a set time limit, a remaining time of the set time limit, an alarm setting time, and the like; It is composed of a secondary battery capable of charging and discharging, and is charged by the voltage supplied from the power supply unit, and when the external power input is cut off, the backup function is supplied to the control unit and the memory unit to maintain a timer function, and data is lost. It characterized in that it comprises a battery to prevent the.

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

As can be seen in FIG. 1, the time cut-off device according to the present invention includes a power input unit 10, a power output unit 20, a key input unit 30, a power supply unit 40, a battery 50, and a switching unit 60. ), A load monitoring unit 70, a control unit 80, a memory unit 90, and a display unit 100. The power input unit 10 is a plug connected to an outlet to which AC 110 to 220V is supplied. It is made of), and supplies the operating power to the electronic product and the device according to the present invention is connected to the AC 110 ~ 220V power supply to the power output unit 20 for the use time limit.

The power output unit 20 is connected to a power input terminal of an electronic product which is connected for the purpose of limiting the use time, and the power input terminal of the electronic product that is connected once is configured to have a structural feature to prevent artificial removal.

The key input unit 30 includes an up / down key, a set, and other predetermined function keys. The key input unit 30 selects a time limit and sets a password by inputting a key by a manager. It generates change, current time setting, alarm time setting and back riding on / off signal.

The power supply unit 40 supplies power of AC 110 to 220V supplied through the power input unit 10 to the power output unit 20 through the switch unit 40, and shows power of AC 110 to 220V that is simultaneously supplied. It is lowered through the internal transformer, and then rectified and supplied to each device at a constant voltage as operating power.

The battery 50 is formed of a secondary battery capable of charging and discharging. When the battery 50 is charged by the voltage supplied from the power supply unit 40 and the external power input is cut off, the backup power is supplied to the control unit 80 and the memory unit 90. This function supplies the timer to maintain the timer function and prevents the set data from being lost.

Switching unit 60 is composed of a relay (Relay), Triac (Triac) or Cds cell, the electronic product is switched according to the control signal of the control unit 80 is connected to the power output unit 20 to limit the use time Interrupt the power supply to.

The load monitoring unit 70 monitors the use of the electronic products connected to the power output unit 50 and provides the information on the control unit 80 as a feedback signal, and a closed circuit connected to the power output unit 20. The coil is wound around to monitor the use of the connected electronic products due to the generation of electromotive force when the load is generated by the use of the electronic products.

The controller 80 has a main memory therein to store the main program, and supplies only the set time limit to the power supplied to the electronic device connected to the power output unit 20 by the operation control and the execution of the program through the main program. Control to control the overall operation of the operation of the device.

The control unit 80 counts up the set time limit when the electronic device connected to the power output unit 20 is used in the information detected through the load monitoring unit 70 and counts up, and the use is turned off. In this case, the power supply is cut off when the set time limit elapses after accumulating only the usage time up to now and accumulating subsequent usage time.

In addition, the control unit 80 is a function of the password is built in when setting and releasing the use time limit to prevent the user's arbitrary time setting and release, use or learning of important programs immediately before the end of the time limit In case of saving the contents or printing the learning contents, it is possible to extend the use time by a user's one-touch key operation for a certain time, for example, about 30 minutes. Immediately before the timeout ends, for example, 5 minutes before the timeout ends.

In addition, the controller 80 outputs a predetermined warning message through the speaker SPK, which is a voice output means when the set time limit is approached within a predetermined time or when the password inputted at the time setting is different.

The memory unit 90 is composed of an EEPROM device which is easy to read / write without losing the stored data without a power supply. Store in the designated address area.

The display unit 100 includes seven-segment (7-segment) display elements or LCD display elements, and displays the current time, the set time limit, the remaining time of the set time limit, and the alarm setting time.

Referring to the operation of the present invention having a configuration including the function as described above are as follows.

Since the current time setting, the alarm setting, and the like in the time cut-off device according to the present invention are similar to the time setting operation of a conventional digital clock, those skilled in the art can clearly realize the operation description thereof.

The plug-in power input unit 10 is connected to an AC 110-220V power outlet, and an electronic product for limiting the use time, for example, a PC, is connected to the power output unit 20, and then the administrator inputs the key input unit 30. When the timeout setting mode is selected using an up / down key and a set key and a predetermined function key, the controller 80 waits for a password input of the administrator for a predetermined time.

At this time, if the input of the password is not detected within a certain time, the controller 80 clears the selection signal input of the time limit setting mode, and when the administrator inputs the password set through the key input unit 30, the controller 80 The password of the administrator registered in the memory unit 90 and the currently input password are checked to determine whether they are the same.

If the password set by the administrator and the currently input password is different from each other, the error message of the password is output through the display unit 100 and at the same time sends a warning sound through the speaker (SPK) and then re-enter the password. If it is determined that the current password and the set password are the same, the controller enters the time limit setting mode and then controls the display unit 100 to flash the digit or to light only the first digit. Requires.

At this time, when the administrator sets the usage time limit of the PC connected to the power output unit 20, for example, 2 hours, the controller 80 may provide information on the currently set time limit to any of the memory units 90. Designate the address area and save the time limit set in the area.

The time limit set in the above may not exceed 12 hours in hour / minute units, and if there is more than one user of the PC, the time limit may be assigned to each person.

In addition, the setting of the time limit or input of a password may be performed using a key provided in the main body, but a remote controller of an electronic product or a remote controller corresponding thereto may be applied for more convenient use.

As described above, when the PC is connected to the power output unit 20 while the PC usage time limit is input by the administrator, a load is generated in the output line of the switching unit 60 according to the use of the PC. The electromotive force is generated so that the information about this is detected by the load monitoring unit 70, the detected information is provided to the controller 80 side.

At this time, the controller 80 detects that the PC is being used according to the information of the load monitoring unit 70 and starts a counter of the time limit set by the administrator, and adds the elapsed time to the time limit set in the memory unit 90. It is determined whether or not the elapsed time has elapsed, and if the set time limit has not elapsed, the current integration time is designated and stored in an arbitrary area of the memory unit 90.

In addition, the display unit 100 displays a time for which the counter is down according to a control signal applied from the controller 80 to indicate the time used by the user and the remaining time in the future.

As described above, when the power of the PC connected to the power output unit 20 is turned off within the set time limit in which the PC use time is accumulated, generation of electromotive force is eliminated in the output line of the switching unit 60. The information is provided to the controller 80 side through the load monitor 70.

At this time, the controller 80 determines that the use of the PC is in a stopped state, stops the counter operation of the elapsed time, and stores and stores the accumulated time up to the present time in an arbitrary area of the memory unit 90.

Subsequently, when the user of the PC returns to school or academy or returns from the outside to turn on the power of the PC connected to the power output unit 20 again, the user is connected to the output line of the switching unit 60 in the same manner as described above. The load monitoring unit 70 may provide the control unit 80 with information on the use of the PC according to the detection of the electromotive force.

Accordingly, the controller 80 recognizes the use of the PC, counts up the elapsed time according to the use of the PC, and adds it to the integration time up to the present time stored in the memory unit 90, and the integration time added is set by the administrator. It is determined whether it is approached within a predetermined time of the time limit, for example within 5 minutes.

When the integration time divided and used is approaching within a predetermined time of the set time limit, the controller 80 generates a warning sound for stably terminating the current work because the time limit allocated to the PC user is close. At the same time as sending out through) and flashes the time displayed through the display unit (100).

After that, when the set time limit elapses, the controller 80 controls the switching unit 60 to switch off the power supply line between the power supply unit 40 and the power output unit 20 to forcibly turn off the PC.

If the current job is using an important program or editing or printing an important document while the time limit allocated to the PC user is close, an arbitrary function key provided in the key input unit 30, for example, an up key. When selecting the control unit 80 extends a predetermined time, for example, 20 to 30 minutes information for the set time limit so that the currently working program can be ended stably.

However, the function for extending the time is limited to once a day to prevent the habitual repeated use.

In addition, when the desired time is completed after extending the set time limit through selection of the up key, the controller 80 selects any function key provided in the key input unit 30, for example, a down key. Return the set time limit within a certain time, for example within 5 minutes.

The control unit 80 may be different according to the setting of the administrator, but for a specific time period, for example, between 12 am and 7:00 am, the power supply to the PC side is cut off so that the PC cannot be used when the manager is asleep. If the administrator sets the time limit to limit the use of the PC, it will be reset based on 24 hours.If the time set on the day is not used, the remaining time will not be accumulated and the next day will be reset. Is assigned.

In addition, when entering a specific time zone, for example, at 12 o'clock as described above, unillustrated lighting is automatically turned on to act as a mood lamp or a sleeping lamp, and a time when the specific time ends, for example, 7 am When the lights are turned on, the lights are automatically turned off.

The lighting may be controlled by the administrator or the user by selecting a function key provided on the front of the apparatus.

As described above, when the administrator releases the password and sets the time limit while the PC cannot be used, the user can always use the time regardless of the time limit.

In addition, the control unit 80 has a built-in power saving function to exclude the power loss due to long time preheating at the time when the PC is not in use.

In addition, the time cut-off device according to the present invention further includes an electromagnetic wave blocking function to protect the user from harmful electrons generated by the use of the PC.

In addition, it may further include a function such as anion and ozone generator to protect the user from the surrounding pollution, and may further include an oxygen generator, a fragrance generator and the like to provide a comfortable PC environment.

In the above description, the use time limit product has been described as an example of a PC, but the present invention is not limited thereto and may be used in all electronic products and machine tools requiring time limit.

As described above, the present invention restricts the use time for a PC, a television, and other electronic products, and divides the limited use time.

In particular, when connected to a PC or TV, and the like can manage the use of their children's PC, watching TV and learning time, and can prevent various damages caused by the use of a late-night PC.

In addition, the concept of managing their schedules is derived by assigning a time limit set in agreement with the child and the parent, and the occurrence of friction between the parent and the child is prevented by the divided use of the assigned time limit.

Claims (6)

A power input unit connected to an outlet to which power is supplied; A power output unit for connecting a power input terminal of the electronic product for limiting the use time; Key input unit which has up / down key, set key and predetermined function key and generates key signal for setting timeout, setting password, setting and changing current time, setting alarm time, etc. Wow; A power supply unit supplying power supplied through the power input unit to the power output unit, dropping through an internal transformer, and then rectifying and supplying operating power to each element at a constant voltage; A control unit configured to include a main memory to store a main program, and to control a use time limit of an electronic product connected to a power output unit through operation control and execution of a program through the main program; A switching unit which switches according to a control signal of the control unit and regulates power supplied to an electronic product connected to a power output unit; A load monitoring unit for monitoring whether the electronic device connected to the power output unit is used through generation of electromotive force on the power line and providing information on the control unit to the control unit; A memory unit configured to be configured as an element of an EEPROM that is easy to read / write without loss of stored data without a power supply, and to store a set time limit, a password, and an integration time; A display unit including a seven segment display device or an LCD display device and displaying a current time, a set time limit, a remaining time of the set time limit, an alarm setting time, and the like; It is composed of a secondary battery capable of charging and discharging, and is charged by the voltage supplied from the power supply unit, and when the external power input is cut off, the backup function is supplied to the control unit and the memory unit to prevent the timer function from maintaining and preventing data loss. A time cut off device comprising a battery. The method of claim 1, If there is use of the electronics connected to the power output unit through the load monitoring unit, the controller counts the set time limit and multiplies it. Time cut off device, characterized in that accumulate time to integration time. The method of claim 1, The control unit is a time cut-off device, characterized in that the built-in password function to prevent the user's arbitrary time setting and release. The method of claim 1, And the control unit extends the use time by a one-touch key operation for a certain time immediately before the end of the time limit. The method of claim 1, And the control unit outputs a predetermined warning message through the voice output means when the set time limit approaches within a predetermined time. The method of claim 1, And the control unit outputs a predetermined warning message through a voice output unit if the password inputted at the time limit setting is different.