KR950009806Y1 - Watch device used one chip micro computer - Google Patents

Abstract

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Description

Monitoring device using one chip microcomputer

1 is a circuit diagram for solving the present invention

* Explanation of symbols for main parts of drawings

1: speaker

2: ONE CHIP MICRO COMPUTER

3: motor drive circuit 4: step motor

5 light emitting unit 6 decoder circuit

7: angle adjuster 8a-8h: light receiving unit

9: Buffer circuit 10: OR GATE

SW ₁ : Power switch SW ₂ : Automatic switch

SW ₃ -SW ₅ : Temporary stop switch SW ₆ : Reset switch

R ₁ -R ₇ : resistance

The present invention relates to a device for monitoring a moving object at night, in particular a monitoring device using a one-chip microcomputer to detect the approach of the moving object by the output signal of the optical sensor using a one-chip microcomputer to generate an alarm sound It is about.

In general, the object monitoring device by detecting the optical sensor is composed of various logic circuits, and the overall configuration is complicated, and the response speed is not only delayed, but the monitoring area is limited, so that the practical effect cannot be achieved, and the product is expensive, so it cannot be widely used. This was caused.

Therefore, the present invention has been devised to solve the above problems. When the object is located between the plurality of light receiving parts and the light emitting parts by storing a program required for a one-chip microcomputer and driving a step motor to which the light emitting parts are attached by its control. As the signal is generated by the power receiving unit, it provides the monitoring device to drive the speaker that generates the alarm sound as a signal of one chip microcomputer, thereby widening the monitoring area and installing the alarm at a low price and improving the reliability of the monitoring device. It is intended to contribute to the purpose of the present invention.

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

One-chip microcomputer that controls the monitoring device by the set program with automatic switch (SW2) to apply power, temporary stop switch (SW3-SW5) to arbitrarily set the monitoring device operation time, and reset switch (SW6) to initialize. (2), an angle adjuster (7) for inputting data for driving the step motor (4) to the one-chip microcomputer (2) through the decoder circuit (6), and a motor drive circuit connected to the one-chip microcomputer (2). A step motor 4 which is driven by the control of the furnace 3 and rotates the light emitting part 5 emitting light at a predetermined angle, and a plurality of light receiving parts received when the light emitted from the light emitting part 5 is blocked. And a buffer circuit 9 for filtering the output signals of the light receiving units 8a-8h and the light receiving units 8a-8h and inputting them to the one-chip microcomputer 2 through the ora gate 10.

Referring to the effect of the present invention made of the configuration as described above are as follows.

Data that allows the user to control the step motor 4 by adjusting the angle adjuster 7 is stored in the one-chip microcomputer 2 through the decoder circuit 6 and operated by the pause switch SW3-SW5. The program stores the program for temporarily stopping the sensing device for a specified time and attaches the light emitting part 5 to the ceiling or an appropriate position while the plurality of light receiving parts 8a-8h are installed on the floor or wall at regular intervals.

In this state, when the power switch SW1 and the automatic switch SW2 are connected, power is applied to the one chip microcomputer 2 to automatically start the continuous operation.

At this time, if the angle adjuster 7 is adjusted so that the light receiving units 8a-8h installed at regular intervals and the light emitting units 5 rotated by the driving of the step motor 4 are aligned with each other, the angle of the decoder circuit 6 is adjusted. When the specific signal corresponding to the adjustment angle of the controller 7 is transmitted to the one chip micro 2, the one chip microcomputer 2 reads the signal transmitted from the decoder circuit 6 to drive the signal to the motor driving circuit 3. The step motor 4 is constantly operated by the angle set in the angle adjuster 7 so that the light emitting unit 5 and the plurality of light receiving units 8a-8h always correspond to each other.

Therefore, when the power switch SW1 and the automatic switch SW2 are connected to the "on" state, the one-chip microcomputer 2 sends a control signal to the motor drive circuit 3, and the step controller 4) is operated so that the light emitting unit 5 rotates at a predetermined angle so that the signals of the plurality of light receiving units 8a-8h are not output. However, if the light is supplied to the specific light receiving units 8a-8h, the object is approached. Will be detected.

At this time, if an object is not detected inside the light receiving unit 8a-8h, the signal of the light receiving unit 8a-8h is not output. As light is blocked between the light receiving unit 8a-8h, 5V power is output from the blocked light receiving unit 8a-8h of the plurality of light receiving units 8a-8h, and a signal thereof is used to transmit the buffer circuit 9 to the light receiving unit 8a-8h. When the filter is applied to the oragate 10, the oragate 10 outputs a "high" signal to the one chip microcomputer 2 so that the one chip microcomputer 2 is input from the oragate 10. After detecting the "high" signal, the speaker 1 emits an alarm sound to inform the user that there is an intruder inside.

On the other hand, by operating the temporary stop switch (SW3-SW5) during the operation of the device of the present invention, the operation stop time of 5 minutes, 10 minutes, 20 minutes, the user can see the brief operation within the set time and the set time When this is completed, it is initialized by the reset switcher SW6 so that the one-chip microcomputer 2 operates the monitoring device again, and when the light receiving units 8a-8h are installed at a predetermined interval, the angle adjuster 7 is adjusted. Accordingly, the rotation angle of the stepper motor 4 can be controlled arbitrarily so that the light emitting unit 8 and the light receiving unit 8a-8h can be exactly matched, thereby increasing the monitoring area.

The present invention, which operates as described above, stores the necessary programs using the one-chip microcomputer 2 and detects the approach object by the light emitting unit 5 and the plurality of light receiving units 8a-8h, and then uses the one-chip microcomputer as its signal. By providing a monitoring device that makes an alarm sound through the speaker 1 in the computer 2, the monitoring area can be enlarged according to convenience, as well as accurate processor control, improving the reliability of the monitoring device and providing a low cost by simple configuration. The product is useful to be widely distributed to users.

Claims (1)

(Correction) One chip for controlling the monitoring device by the set program, which is equipped with an automatic switch (SW2) for applying power, a temporary stop switch (SW3-SW5) for arbitrarily setting the operating time of the monitoring device, and a reset switch (SW6) for initializing. An angle adjuster 7 for inputting data for driving the step motor 4 to the one-chip microcomputer 2 through a microcomputer 2, a decoder circuit 6, and connected to the one-chip microcomputer 2; A step motor 4 which is driven by the control of the motor driving circuit 3 and rotates the light emitting part 5 emitting light at a predetermined angle, and a plurality of light received when the light emitted from the light emitting part 5 is blocked. And a buffer circuit 9 for filtering the output signals of the two light receiving units 8a-8h and the light receiving units 8a-8h and inputting them to the one-chip microcomputer 2 through the oragate 10. Monitoring device using microcomputer.