KR940008737B1 - Time switch and controlling method thereof - Google Patents

Abstract

The time switch with a microprocessor includes a micro controller unit (40) storing the control program, an oscillator (20) generating the control frequency, a key input device (30) setting the control time, a display (50) showing the present and reservation time and the present mode, an output device (60) providing output if the setting time is on, and a power supply (10) providing +5 and +12 V to the circuits.

Description

Time switch and control method

1 is a block diagram according to the present invention.

2 is a detailed block diagram according to the present invention.

3 is a detailed circuit diagram according to the present invention.

4 is a detailed flow chart in accordance with the present invention.

5 is a current time correction routine according to the present invention.

6 is a reservation time modification routine according to the present invention.

7 is a time incremental subroutine diagram of a reservation routine in accordance with the present invention.

8 is a minute incremental subroutine diagram of a reservation routine in accordance with the present invention.

9 is an external view of a conventional time switch.

* Explanation of symbols for main parts of the drawings

10: power supply unit 11: stabilization circuit

12: rectifier 13: first power generator

14: second power generator 20: oscillator

30: key # input unit 40: microcontroller unit (MCU)

50: display unit 51: drive circuit

52: time display 53: power supply

54: mode display unit 60: output unit

61 output controller 62 output terminal

The present invention relates to a time switch capable of controlling a variety of electrical devices by outputting power at a predetermined time, and in particular, the present time display and correction function, reservation function, reservation stop function, reservation regeneration function by the microcontroller unit. It relates to a time switch to enable the user to change the use time to prevent theft and save energy.

Generally, the power time device as shown in FIG. 9 is attached to an outlet, and the reservation time is not limited to almost 3 hours, and most of the time depends on the mechanical type, and the set time is limited. When complete, unless the user arbitrarily switch off the electrical equipment has been continuously supplying power, there was a problem that a lot of unnecessary power consumption.

In addition, recently, the home automation system (Home Automation System) has been introduced, there is a system that allows the user to remotely control various electronic devices, lighting equipment, curtains, etc. when the user at home for a long time out of the setting arbitrarily adjusting time or by telephone from the outside This is because the system itself is very expensive, there was a problem that can not be widely used.

The present invention is to solve the above problems as a micro-controller unit to configure the electronic time switch to supply power to the lighting equipment and electronic devices at the time set by the time setting, as well as setting the reservation time, SUMMARY OF THE INVENTION An object of the present invention is to provide a time switch and a method of controlling the same so that a user can control the setting device at a desired time by adding an operation time setting, a reservation stop, and a reservation return function.

A feature of the present invention for achieving the above object is in the electronic time switch, the microcontroller unit 40 is connected to the microcontroller unit 40 and the microcontroller unit 40 to control the entire built-in control program 40 The oscillator 20 generates a control frequency capable of operating and the input terminal of the microcontroller unit 40 to operate the current time, reservation time, time alignment, reservation stop, start time, and stop time buttons. A display unit 50 connected to a key input unit 30 and an output side of the microcontroller unit 40 to display a current time and a reservation time, and to display a current mode state. Connected to the output terminal, when the set time is completed, the output unit 60 to output power to the outside, and AC 220 power output to +5, +12 There is provided an electronic time switch hayeoseo a power supply 10 such that proper power is supplied to the circuit.

According to another aspect of the present invention, in the electronic time switch control method, a current time correction routine (L1) for correcting a current time when there is a current time correction request, and a reservation time correction is executed if a reservation time correction request is made after the routine processing. A reservation time correction routine L2 for performing a reservation stop selection routine L3 for executing a reservation stop selection process when there is a reservation stop selection request after the routine processing, and an on / off time of the first output port after the routine processing; Check the on / off time of the first output selection routine (L4) to execute the reservation stop cancellation when the on / off time is the same as the current time, and the on / off time of the second output port after the routine processing. The present invention provides a method for controlling an electronic time switch, in which the second output selection routine L5 turns off the second output port if the time coincides with the current time.

Hereinafter, described in detail by the accompanying drawings as follows.

1 is a block diagram according to the present invention, and is largely divided into a power supply unit 10, a power generation unit 20, a key input unit 30, a micro-large controller unit 40, a display unit 50, and an output unit 60. do.

2 is a detailed block diagram according to the present invention, and FIG. 3 is a detailed circuit diagram according to the present invention. That is, the power supply unit 10 generates two different voltages by depressurizing and rectifying the output voltage of the stabilization circuit 11 and the output voltage of the stabilization circuit 11 to remove the noise included in the AC 220 power stably. Rectifier 12 and first and second power generators 13 for outputting a relay drive voltage (+12) and driving power (+5 Vcc) to each circuit and device using the output voltage of the rectifier 12 (14). Consists of

In addition, the display unit 50 includes a time display unit 52 for displaying a current time and a reservation time, a mode display unit 54 for blinking a current time lamp, and the like, and the time display unit 52 and a mode display unit ( A drive circuit for adjusting the time display unit 52, the power supply unit 53, and the mode display unit 54 under the control of the microcontroller unit 40, and a power supply unit 53 for applying a lighting power to the light source 54). It consists of 51. The output unit 60 includes an output control unit 61 for determining an output terminal according to the operation of the relays RE1 and RE2 under the control of the microcontroller unit 40, and the output of the output control unit 61. The output terminal 62 transmits power to an external electric device.

When the AC 220 power is applied to the stabilization circuit 11 of the power supply unit 10 as described above, the noise is removed by the ZNR1, ZNR2 and the condenser C1 and supplied to the transformer T1. It is output by reducing the voltage to a kind voltage and then rectifying and output by full-wave rectifying circuit BDI BD2.

At this time, the constant voltage circuit 15 of the first power generator 13 outputs the 12 driving voltages of the relays RE1 and RE2 of the output controller 61 and the constant voltage circuit of the second power generator 14. In 16, 5 is output and supplied to the key input unit 30, oscillation unit 20, microprocessor 40, and the like, and the frequency is output from the oscillation unit 20 to be in an initial state operable. In this state, when the first switch SWI of the key input unit 30 is connected in order to correct the current time, the microcontroller unit 40 recognizes this and turns on the light emitting diode LD1 of the mode display unit 54. You will be informed that you are in time mode. Then, when the fifth and sixth buttons SW5 and SW6, which are hour and minute adjustment switches, are connected in turn a plurality of times, the microcontroller unit 40 reads the data and displays the data on the display unit 50. Let's go. That is, the microcontroller unit 40 applies the data corresponding to the set current time to the time display unit 52 and the power supply unit 53 through the drive circuit 57 to turn on and off the transistors Q1 to Q4. As a result, the driving power is supplied to the time display unit 52 to display the current time.

Next, as described above, the current time is correctly set, and then a reservation time for operating the electric device is set.

That is, when the second button SW2 is connected, the microcontroller unit 40 recognizes that the reservation time is set and turns on the light emitting diode LED2 of the mode display unit 54 to indicate the reservation time setting mode. As described above, when the reservation time is set by operating the fifth and sixth buttons SW5 and SW6, the time display unit 52 is displayed in the same manner as the current time setting, and about 8 seconds later, the current time is displayed.

On the other hand, when the reservation time set by the second button SW2 is completed, a "low" signal is generated from the PB0 and PB1 terminals of the microcontroller unit 40 and its signal is inverted to the "high" line in the drive circuit 51. By selectively driving the first and second relay (REI) (RE2) of the output control unit 61, which is the output unit 60, the first relay switch (RESI) and the output terminal 62 of the output terminal 62 By connecting the second relay switch RES2, 220 power is supplied to the load, thereby performing a desired control function and switching a specific product by the output terminal 62. At this time, the selective driving of the first and second relays REI and RE2 of the output control unit 61 is determined by the operation of the fourth button SW4 of the key input unit 30, and when the first relay REI is selected. Is designed to have a simple switching function, and when the second relay (RE2) is selected, AC 220 power is supplied to the load.

In addition, the third button SW3 of the key input unit 30 is a switch for selecting and stopping a reservation, and the fifth button SW5 may be used in a state of modifying a current time or a state of modifying a reservation time. , Increase by 1 hour. The sixth button is used in a state of modifying a current time or a state of modifying a reservation time, and increases by 1 minute when modifying a current time and by 5 minutes when modifying a reservation time. In addition, the seventh button SW7 is used to modify the reservation time and is used to modify the operation time of the load.In this case, the light emitting diode LD5 is turned on to indicate the operation time mode, and the eighth button SW8 is to modify the reservation time. It is used to modify the stop time of the load. In this case, the light emitting diode LD6 is turned on to inform the stop time mode.

Next, a flow chart of the microcontroller unit 40 shown in FIGS. 4 to 9 will be described.

First, FIG. 4 is an overall flow chart of the microcontroller unit. When power is supplied to all circuits and devices, the microcontroller unit checks the connection state of the first button SW1, which is a current time correction switch (step 101). If there is a request to modify the current time, perform the process (L1) of executing the current time correction (step 102), and if there is no current time correction request, check the reservation time correction, and if there is a request, modify the reservation time. The reservation time correction routine L2, which executes (step 104), is executed.

On the other hand, when there is no request to modify the reservation time in the reservation time modification routine L2, it is again checked whether or not the third button SW3 of the reservation stop selection request mode is pressed (step 105). The reserved stop selection routine L3 for executing the stop selection (step 106) is executed. If there is no reservation stop selection in the reservation stop selection routine L3, the first and second output selection routines L4 and L5 are executed. That is, the first output port (output terminal 62 of the simple switch function) is selected. If the first output port on time is determined to be the current time (step 108), the first output port is turned on (step 109), and then again the off time of the first output port is equal to the current time. (Step 110) The first output selection routine L4 is executed to turn off the first output port and release the reserved stop state (Step 111). If the reservation of the first output port is not selected, if the on time of the second output port (the port connected to the stabilization circuit 11 to output 220 power) is the same as the current time, turn on the second output port (step). 113) If the off time of the second output port coincides with the current time, the second output port is turned off (step 115) and the second output selection routine L5 is returned to the current time correction routine Ll.

5 is a subroutine of the current time correction routine L1 of FIG. 4, and when the current time correction request is checked (step 201), whether the fifth and sixth buttons SW5 and SW7 of the hour and minute adjustments are pressed ( In step 202 and 204, the unit of time and minutes are increased (steps 203 and 205), and when the counter is completed (step 207), the current time correction is completed.

FIG. 6 is a subroutine of the reservation time modification routine 12 of FIG. 4. When the reservation time correction request is made (step 301), when the output port is connected by checking the connection state of the selection button (step 302), FIG. Depending on whether the output port is selected (step 303), an output port selection routine L6 for setting the first and second output ports (steps 304 and 305) is executed.

In addition, after controlling the first and second output ports (step 309,311) according to whether the first output port is determined (step 306), the time and minutes are increased (step 310,312), and when the count is completed, the reservation time correction request is made. The time adjustment routine L7 returns to the determination step.

FIG. 7 is a subroutine diagram of the time increasing step (step 310) in the time adjusting routine L7 of FIG. 6, wherein the fifth button, which is a time adjusting switch, is incremented by one hour for each time of connection (step 401). When 11 o'clock is checked (step 402), the current time is determined to be AM (AM) (step 403). If the current time is PM, it is increased to 12 AM. do.

FIG. 8 is a subroutine diagram of the increment step (step 312) in the time adjustment routine L7 of FIG. 6, and increases in units of 5 minutes each time the sixth button, which is the minute adjustment switch, is connected in the reservation time correction mode (step 406). When it is checked for 60 minutes (step 407), it is initialized to "0" and then incremented by 5 minutes if there is a minute adjustment request.

As described above, the present invention configures an electronic time switch with a micro-controller unit so as to supply power to lighting equipment and electronic devices at a time set at one time setting, as well as setting a reservation time, setting an operation time, By adding a reservation stop and a reservation return function, the user can control the setting device at a desired time.

Claims (6)

In the electronic time switch, a microcontroller unit 40 having a built-in control program to control the whole, and an oscillator connected to the microcontroller unit 40 to generate a control frequency at which the microcontroller unit 40 can operate. A key input unit 30 connected to an input terminal of the micro-large controller unit 40 and capable of operating a current time, reservation time, time-division alignment, reservation stop, operation time, and stop time buttons; It is connected to the output side of the controller unit 40, the display unit 50 for displaying the current time and the reservation time, and display the current mode status, and connected to the output terminal of the microcontroller unit 40 when the set time is complete Output unit 60 for outputting the power to the power source and the power supply unit 10 for supplying the appropriate power to a predetermined circuit by outputting the AC 220 power to +5, +12 An electronic time switch, characterized in that configured. The display unit (50) of claim 1, wherein the display unit (50) includes a time display unit (52) for displaying a current time and a reservation time, a mode display unit (54) for flashing a current time lamp, and the like, and the time display unit (52). And the power supply unit 53 for applying lighting power to the mode display unit 54 and the time display unit 52, the power supply unit 53, and the mode display unit 54 under the control of the microcontroller unit 40. Electronic time switch, characterized in that consisting of a drive circuit (51). The output controller (61) according to claim 1, wherein the output unit (60) determines an output terminal according to driving of the relays (RE1) and (RE2) under the control of the microcontroller unit 40, and the output control unit 61. Electronic time switch, characterized in that consisting of an output terminal 62 for transmitting the output power of the external electrical device. In the electronic time switch control method, a current time correction routine (L1) for performing a current time when there is a current time correction request, and a reservation time correction routine for executing a reservation time correction if there is a reservation time correction request after processing the routine ( L2), a reservation stop selection routine L3 for executing a reservation stop selection process when there is a reservation stop selection request after the routine processing, and an on / off time of the first output port after the routine processing is checked. The first output selection routine (L4) for executing the reservation stop cancellation when the time is the same as the current time, and the on / off time of the second output port after the routine processing are checked to match the on / off time with the current time. And a second output selection routine (L5) for turning off the second output port. 5. The reserved time correcting routine (L2) according to claim 4, wherein when the reserved time correcting request is requested (step 301), the output port checks the connection state of the selection button (step 302) and the first output when the button is connected. An output port selection routine L6 for setting the first and second output ports according to whether or not the port is selected (step 303) (steps 304 and 305), and the first and the second output ports depending on whether or not the first output port is determined (step 306). 2 After controlling the output port (step 307), if there is a connection of the fifth and sixth buttons, which are the hour and minute adjustment switches (steps 309 and 311), increase the hour and minutes (steps 310 and 312) and then modify the reservation time when the count is completed. And a time adjustment routine (L7) to return to the request observation step. 5. The minute adjustment step (step 312) of the time adjustment routine (L7) according to claim 4, wherein the minute adjustment step (step 312) is incremented by five minutes each time the sixth button, which is the minute adjustment switch, is connected in the reservation time correction mode (step 406). And initializing to " 0 " (step 407) when 60 minutes after the step is checked, and incrementing by 5 minutes if there is a minute adjustment request.