KR940007803Y1 - Alarm apparatus for camera - Google Patents

Abstract

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Description

Camera alarm

1 is a block diagram of a conventional camera alarm device,

2 is a detailed circuit diagram of a camera alarm apparatus according to an embodiment of the present invention,

3 is a flowchart of a program for implementing this design,

4 is a block diagram of a camera alarm apparatus according to another embodiment of the present invention.

The present invention relates to a camera alarm device, and more particularly, to a camera alarm device designed to warn the camera of an abnormality using hearing as well as a visual alarm device using a light emitting diode.

A conventional camera alarm apparatus will be described with reference to FIG. 1 of the accompanying drawings. 1 is a block diagram of a conventional camera alarm device.

Referring to the accompanying Figure 1, the configuration of a conventional camera alarm device is exposed to light depending on the type of film mounted on the film mounting barrel of the camera to be used, the film sensitivity recognition unit for controlling this ( 10) and an exposure control unit 20 for controlling the exposure level of the camera by inputting the microcurrent outputted by the output of the film sensitivity recognition unit 10 and the angle of infrared rays detected by the light receiving elements D1 and D2. And a strobe unit 30 for emitting a flash, including a capacitor C1 and a xenon discharge tube XE that input the output of the exposure control unit 20, and a dummyistor 41. ) Is connected to the AF control unit 40 for measuring the focus, the light emitting diode driver 50 for reflecting infrared rays to a subject not shown by the output of the AF (Auto Focus) control unit 40 and , Connected to the exposure control unit 20 Motor M1 operating when the shutter is operated and motor M2 operating to rewind the film, and motors M1 and M2 of the motor driving unit 60. An electromagnet driver 70 for turning on the electromagnet by applying a magnetic field to the coil L1 for driving, a self-timer diode D3 and a battery check diode D4 is connected and connected to the above drivers. It consists of a sequential control unit 80 for controlling the operation.

Conventional camera alarm device is configured as described above by using the output of each part of the camera operation to shoot the subject not shown to light up the light emitting diodes to visually confirm the operating state of the camera to the user of the camera Problems occurring at the site can be confirmed by the camera user in the light-emitting state of the light emitting diode. Therefore, the user can check the lighting state of the self-timer diode D3, the battery check diode D4, and the low-brightness warning diode D6 to solve the problem caused when taking a picture.

However, a problem of the conventional camera alarm device is that a camera equipped with a warning display device using a light emitting diode (LED) or a liquid crystal display device (LCD) may emit light when the ambient light is too bright because the ambient brightness is too bright. It's hard to check, and the photographer who is immersed in taking the picture is so focused on the subject that it's very hard to pay attention to anything else, which can lead to underexposure or poor brightness. It is.

Therefore, the object of the present invention is to solve the above-mentioned problems. The light emitting diode (LED) or the liquid crystal display device (LCD) is turned on by using the output of a circuit for each function of the camera. If the problem occurs that affects the shooting when shooting the subject, the camera can recognize the problem by the alarm sound and check the position of the light emitting diode to find the cause of the problem and make sure to solve it. do.

In order to achieve the above object, the constitution of the present invention is a power supply, a self-timer selection switch for selecting a self-timer, and connected to the power supply to operate a camera when a photographer photographs a subject not shown by a switch operation. A normal mode driver for controlling a general operation, a general mode unit operable to photograph a subject not shown by a control signal of the normal mode driver, and a photographer to operate the self-timer driver by the self-timer selection switch operation It consists of a self-timer mode unit that is operated by.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 and 3. 2 is a detailed circuit diagram of a camera alarm apparatus according to an embodiment of the present invention, and FIG. 3 is an operation flowchart showing the operation of the present invention.

With reference to FIG. 2, the structure of this invention is demonstrated.

There is a normal mode unit 2 connected to the output of the normal mode driver 1 connected to the power source 5 and operated. The output of the self-timer selector switch 6 and the normal mode driver 1 is input. The self-timer mode driver 3 is connected, and the self-timer mode driver 4 which operates by using the output of the self-timer mode driver 3 as an input is connected.

The general mode driving unit 1 is configured such that one terminal of the switch S1 is connected to the other terminal of the switch SW1 having one terminal connected to the power supply 5, and the other terminal of the switch S1 is a battery. It is connected to the driver 11, the autofocus driver 12, the autoexposure driver 13, and the shutter switch controller 14. One terminal of the switch S1 is connected to the alarm sound driver 15, and the switch S1 is connected to the buffer 16.

The configuration of the normal mode unit 2 includes inputs of the battery check unit 10, the autofocus processor 20, the auto exposure unit 30, and the speaker driver 40 to the output terminal of the normal mode driver 1. The terminals are connected.

The battery check unit 10 includes a light emitting diode having a battery check circuit 21 connected to an output terminal of the battery check driver 11 and a cathode terminal connected to an output terminal of the battery check circuit 21. 217 is connected, and the other terminal of the resistor 221 having one terminal connected to the power supply VCC is connected to the anode terminal.

The autofocus processing unit 20 has an output of the battery check circuit 21 of the battery check unit 10 as an input, and an output terminal of the buffer 23 is connected to the switch S2 and the general mode driver 1 The other terminal of the switch S3 having one side terminal connected to the output terminal of the autofocus driving unit 12 and the autofocus processing circuit 22 for outputting three outputs are connected. The output terminal OUT1 is connected to one terminal of the switch S4 and a coil 215 grounded to the other terminal of the switch S4 is connected.

The short-range warning output terminal OUT2 is connected to the input terminal of the inverter 24, the output terminal of the inverter 24 is connected to the cathode terminal of the light emitting diode 218, and one terminal is connected to the power supply to the anode terminal. It is connected to the other terminal of the resistor 222. The output terminal of the inverter 24 is connected to the first input terminal of the AND gate 25, and the distance end signal output terminal OUT3 of the autofocus processing circuit 22 is connected to the second input terminal.

The output terminal of the AND gate 25 is connected to the switch S4. The second input terminal of the AND gate 25 is connected to the cathode terminal of the light emitting diode 219, and the anode terminal is connected to the other terminal of the resistor 223 to which one terminal of the power supply VCC is connected. .

In the configuration of the automatic exposure unit 30, the output terminal of the automatic exposure driver 13 of the normal mode driver 1 is connected to one terminal of the switch S7, and the other terminal of the switch S7 has two output terminals. It is connected with the automatic exposure circuit 26 which outputs. The output terminal OUT4 of the automatic exposure circuit 26 is connected to one terminal of the switch S8 and the other terminal of the shutter switch SW2 is connected to the grounded coil 216.

The low luminance warning output terminal OUT5 of the automatic exposure circuit 26 is connected to the input terminal of the inverter 27 and the output terminal of the inverter 27 is connected to the cathode terminal of the light emitting diode 220 and the anode The terminal is connected to the other terminal of the resistor 224, one terminal is connected to the power supply (VCC), and the output terminal of the inverter 27 is connected to the switch (S8).

In the configuration of the speaker driver 40, the output terminal of the inverter 27 of the auto exposure unit 30 is connected to the first input terminal of the AND gate 28, and the AND gate 25 of the auto focus processor 20 is connected. The output terminal is connected to the second input terminal of the AND gate 28, and the output terminal of the battery check circuit 21 of the battery check unit 10 is connected to the third input terminal. The output terminal of the AND gate 28 is connected to the inverter 29, the output terminal of the inverter 29 is connected to the output terminal of the shutter switch control unit 14 of the shutter switch control unit 14 of the normal mode driving unit (1) Connected to S6).

The output terminal of the AND gate 28 is connected to the first input terminal of the NAND gate 214 and the second input terminal is connected to the output terminal of the clock generation circuit 33 of the self-timer mode driver 3. The output terminal of the NAND gate 214 is connected to the switch (S5) where one terminal is connected to the output terminal of the alarm sound driver 15 of the normal mode driver (1).

The other terminal of the switch S5 is input to the alarm sound circuit 212, and the output terminal of the alarm sound circuit 212 is connected to the input terminal of the speaker 213 having one terminal grounded and the other side of the switch S6. The terminal is connected to the input terminal of the shutter switch control circuit 210 and the output terminal is connected to the input terminal of the inverter 211. The output terminal of the inverter 211 of the automatic exposure unit 30 is connected to the shutter switch SW2.

In the configuration of the self-timer mode driver 3, one terminal of the switch S2 is connected to the first terminal A of the self-timer selection switch 6, and the other terminal is connected to the primary delay circuit 21. The output of the primary delay circuit 31 is connected to the secondary delay circuit 32. The output of the secondary delay circuit 32 is connected to the input of the inverter 34 and the output of the inverter 34 is connected to the first input terminal of the NAND gate 35.

One terminal of the switch S2 is connected to the second input terminal of the NAND gate 35, and an output of the NAND gate 35 is connected to an input terminal of the buffer 16. The output of the primary delay circuit 31 is connected to the input of the clock generation circuit 33 and the switch S2 is connected to the buffer 36.

The self-timer mode unit 4 is configured such that the cathode terminal of the light emitting diode 41 is connected to the output terminal of the clock generation circuit 33 of the self-timer mode driver 3 and the power supply (VCC) is connected to the anode terminal. It is connected to the other terminal of the resistor 42 is connected to one terminal.

The operation of the present invention configured as described above will be described.

First, when the first terminal A of the self-timer selector switch 6 is connected to the third terminal C and is turned off, and the power switch SW1 is turned on, power is supplied to the alarm sound driver 15. When the power switch SW1 is turned on, a high level "H" signal is applied to the switch S2 by the buffer 36 of the self-mode driving unit 3. As the switch S2 is turned on, the low level " L " signal delayed by the primary and secondary delay circuits 31 and 32 passes to the first input terminal of the NAND gate 35 via the inverter 34. Since the signal is applied and the low level "L" signal is applied to the second input terminal, the high level "H" signal is output to the output terminal 35 of the NAND gate and applied to the buffer 16 of the normal mode driver 1. The switch S1 incorporated in the general mode driver 1 is turned on.

Therefore, since the normal mode driver 1 operates to output a signal necessary for the operation of the general mode unit 2 to the general mode unit 2, the operation of the general mode unit 2 will be described first. The switch used in this design has the characteristic that the switches except for the power switch SW1 and the self-timer selection switch 6 are turned on when a high level "H" signal is applied to the switch and is turned off when a low level "L" signal is applied. I use it.

First, when the switch S1 is turned on and the power supply 5 is applied and the battery check driver 11 in the normal mode driver 1 operates to determine that the state of the battery being used in the camera is poor, the battery check circuit 21 Output signal of the low level " L " is outputted and the light emitting diode 217 is turned on by the voltage difference, and the low level " L " signal is applied to the switch S3 through the buffer 23. Since S3 is off, the low level "L" is output to the output terminals OUT1, OUT2, OUT3 of the autofocus processing unit 22.

Therefore, the "L" signal is outputted to the output of the AND gate 25 and the switch S7 is turned off. Therefore, since the "L" signal is output and the "L" signal is applied to the input terminal of the AND gate 28, the output of the automatic exposure circuit 26 also outputs the "L" signal. Therefore, as the "H" signal is applied to the switch S6 through the inverter 29 and the switch S6 is turned on, the shutter control circuit 210 operates to output the "L" signal to the output terminal. Since the low level "L" signal is input to the input terminal of the NAND gate 214, the high level "H" signal is output to the output terminal. Therefore, the switch S5 is turned on and the alarm sound circuit 212 is operated so that the speaker 213 sounds an alarm sound. Therefore, the battery check light emitting diode 217 turns on and an alarm sound is generated in the speaker 213.

However, if the battery condition of the camera is good, the switch S3 is turned on because the "H" signal of which the output of the battery check circuit 21 is high level is output and the "H" signal is applied to the switch S3 through the buffer 23. And the auto focus processing circuit 22 operates as the switch S3 is turned on. As the autofocus processing circuit 22 operates, the "H" signal is applied to the output terminal OUT1, the distance measurement with the subject is not completed, and the "L" value is output to the end-of-range signal output terminal OUT3. The light emitting diode 219 is turned on and the switches S5 and S6 are turned on by the same operation as described above so that the shutter switch control circuit 210 operates and the alarm sound circuit 212 operates to alert the speaker 213. Sound will be generated.

When the distance measurement with the subject is completed, the "H" signal is output to the end signal output terminal OUT3 so that the light emitting diode 219 and the speaker 213 do not operate and check whether the distance to the subject is within a short range. do. When the distance to the unshown object is near, the "H" signal is output to the near output terminal OUT2 and the "L" signal is applied to the cathode terminal of the light emitting diode 218 via the inverter 24 to emit light. The diode 218 is turned on and the switches S5 and S6 are turned on by the operation as described above so that the shutter switch control circuit 210 is operated and the alarm sound circuit 212 is operated to alert the speaker 213. This will occur.

However, when the distance to the unshown object is not near, the "L" signal is output to the near output terminal OUT2 so that both the output of the inverter 24 and the output of the end signal output terminal OUT3 are both "H". Since the output of the AND gate 25 is " H " so that the switch S4 is turned on and current flows in the coil 215 as the switch S4 is turned on, the electromagnet is turned on and the motor not shown is connected to the subject. Is driven to adjust the focus.

In addition, since the "H" signal is applied to the switch S7, the automatic exposure circuit 26 operates. As the automatic exposure circuit 26 operates, a high level " H " signal is output to the output terminal OUT4, and it is checked whether the ambient luminance is low. If the ambient luminance is low, the low luminance warning terminal OUT5 is output. H " signal is output and the " L " signal is applied to the cathode terminal of the light emitting diode 220 and the AND gate 28 through the inverter 27, so that the light emitting diode 220 is turned on and the operation described above. By the switch (S5, S6) is turned on, the shutter switch control circuit 210 is operated and the alarm sound circuit 212 is operated to generate an alarm sound in the speaker 213.

However, when the surrounding luminance is not low, the "L" signal is output to the low luminance warning terminal OUT5, and "H" is applied to the switch S8, so it is turned on and "H" at one terminal of the shutter switch SW2. A signal is applied and the shutter switch control circuit 210 operates by the operation to output the "L" signal to the output terminal. Therefore, since the "H" signal is applied to the shutter switch SW2 through the inverter 211, the shutter switch SW2 is turned on and a current is applied to the coil 216 so that a magnetic field is generated. To drive a motor not shown.

Next, the operation of the self-timer mode driver 3 and the operation of the self-timer mode unit 4 will be described. First, when the self-timer selector switch 6 is connected to the first terminal A to the second terminal B, the self-timer selector switch 6 is turned on and the power switch SW1 is turned on. Since the switch (S2) is turned on through the primary delay circuit 31 has a time delay of about 7 to 10 seconds, and again through the secondary delay circuit has a time delay of 2 to 3 seconds.

While delaying the time in the secondary delay circuit, the output of the primary delay circuit is input to the clock generation circuit 33 to generate a clock, and the light emitting diode 41 and the alarm sound circuit for displaying the self-timer are generated by the generated clock. The operation 212 operates to turn on the light emitting diode 41 and generate an alarm sound in the speaker 213.

Since the high-level signal having a second delay circuit, that is, a time delay of 9 to 13 seconds is applied to the switch S1, the switch S1 is turned on so that the above-described normal mode driver 1 and the general mode unit 2 ) Will be repeated.

4 illustrates another embodiment of this invention with reference. 4 is a block diagram of a camera alarm apparatus according to another embodiment of the present invention.

According to the exemplary embodiment of the present invention, the general mode driving circuit and the battery check circuit unit 10 are connected to the microcontroller 100 that controls the operation of the peripheral circuit, and the shutter switch is connected to the output terminals of the general mode driving circuit and the battery check circuit unit 10. The control circuit 20 is connected, and the motor unit 30 which is driven to adjust the focus and the exposure to the output terminal of the normal mode driving circuit and the battery check circuit unit 10 is connected and the microcontroller 100 The LED driver 40 for driving the LED is connected to the output of the LED. An autofocus circuit 50 is connected to the microcontroller 100 and outputs an input / output, and an autoexposure circuit 60 is connected to the microcontroller 100 and outputs an input / output. In addition, an alarm sound generating circuit 70 operating by using the output of the microcontroller 100 as an input is connected, and a mode selection circuit 80 for distinguishing a normal mode and a self-timer output is output to the microcontroller 100. Is done by typing

The operation of another embodiment of the present invention made as described above is very simple and perfect for the camera to which the microcontroller is attached when the microcontroller 100 is operated by inputting a program operating as shown in the flowchart of FIG. It becomes usable.

And instead of the circuit that can operate the alarm sound, LSI (Large Scale IC) with voice synthesis function is used, and the visual safety device is removed so that only the fully automatic automatic safety device can be used. In this case, since the problem that occurs when shooting a subject in the camera can be directly recognized by voice, it is very easy to solve the problem, and there is an advantage that the user can certainly deal with the problem.

The effect of the present invention, which operates as described above, is that the light emitting diode (LED) or the liquid crystal display (LCD) is turned on when a problem occurs when the photographer photographs the subject by using the output of a circuit for each function of the camera. As the alarm sounds using the speaker, if a problem occurs when the photographer shoots, the photographer can easily recognize the cause of the problem through a lighted diode and can also use a very small and popular camera using a microcontroller. This design can be carried out very easily. In addition, it can be used in a circuit that directly recognizes the cause of a problem by using a voice synthesis device.

Claims (9)

General power for controlling the general operation of the camera when the photographer photographs a subject by a switch operation connected to the power supply 5, the self-timer selection switch 6 for selecting the self-timer, and the switch 5 The self-timer is operated by a mode driving unit 1, a normal mode unit 2 operable to photograph a subject according to a control signal of the normal mode driving unit 1, and the self-timer selection switch 6 Self-timer driving unit (3) that operates when desired, and the self-timer mode unit (4) which is operated by the operation of the self-timer mode driving unit (3). The self-timer mode driving unit (3) according to claim 1, wherein the self-timer mode driving unit (3) includes a switch (S2) having one side terminal connected to the first terminal (A) of the self-timer selection switch (6), and the other terminal of the switch (S2). The primary delay circuit 31, the secondary delay circuit 32 for inputting the output of the primary delay circuit 31, and the clock generation circuit for inputting the output of the primary delay circuit 31 are connected. (33), an inverter 34 for inputting the output of the secondary delay circuit 32, and a NAND gate in which the output of the inverter 34 and one terminal of the switch S2 are connected to the input terminal ( 35), and the camera alarm device, characterized in that the other terminal of the power switch (SW1) is connected to the input terminal and the output terminal is composed of a buffer (36) connected to the switch (S2). The self-timer mode unit 4 includes a light emitting diode 41 having an output terminal of the clock generation circuit 33 of the self-timer mode driver 3 connected to a cathode terminal, and a power supply (VCC). ) Is connected to the rear side terminal and the other terminal is connected to the anode terminal of the light emitting diode (41) camera alarm device, characterized in that consisting of. The switch of claim 1, wherein the general mode driver 1 comprises a switch S1 having one side terminal connected to the other terminal of the switch SW1 having one side terminal connected to the power supply 5, and a switch S1. Alarm sound connected to the battery driver 11, the autofocus driver 12, the autoexposure driver 13, the shutter switch controller 14, and one terminal of the switch S1 connected to the other terminal. Camera drive device, characterized in that consisting of a drive unit (15), and a buffer (16) connected to the switch (S1). The method of claim 1, wherein the normal mode unit 2 is connected to the normal mode driving unit 1, the battery processing unit 10, the autofocus processing unit 20, the auto exposure unit 30, the speaker Camera alarm device, characterized in that consisting of a drive (40). The battery processor 10 of claim 5, wherein the battery processor 10 includes a battery check circuit 21 connected to an output of the battery check driver 11 and a cathode terminal connected to an output terminal of the battery check circuit 21. A light emitting diode (217), and a camera alarm device, characterized in that the terminal is connected to the power supply (VCC) and the other terminal is composed of a resistor (221) connected to the anode terminal of the light emitting diode (217). The automatic focus processor (20) of claim 5, wherein the autofocus processor (20) includes a buffer (23) for inputting the output terminal of the battery check circuit (21), and an output terminal of the autofocus driver (12) of the normal mode driver (1). An autofocus processing circuit 22 and an autofocus processing circuit 22 connected to one end of the switch S3 connected to the output terminal of the buffer 23, the other end of the switch S3, and the like. NAND gate which inputs the inverter 24 which inputs the short-range warning output terminal OUT2 of (), and the output of the inverter 24 and the end signal output terminal OUT3 of the autofocus processing circuit 22 which are inputs. And a switch S4 connected to one output terminal OUT1 of the autofocus processing circuit 22 and an output terminal of the NAND gate 25, and a switch S4 and the other terminal. The output of the coil 215 and the inverter 24 connected to the cathode terminal are connected to the coil 215 having one terminal grounded and the other terminal connected thereto. Connected to the light emitting diode 218, a resistor 222 having one terminal connected to a power source and the other terminal connected to an anode terminal of the light emitting diode 218, and the end of distance measurement of the autofocus processing circuit 22 completed. A light emitting diode 219 having a cathode terminal connected to the signal output terminal OUT3 and a resistor 223 having one terminal connected to a power supply VCC and the other terminal connected to an anode terminal of the light emitting diode 219. Camera alarm device, characterized in that consisting of. The switch S7 according to claim 5, wherein the automatic exposure unit 30 includes a switch S7 having one side terminal connected to an output terminal of the automatic exposure driving unit 13 of the general mode driving unit 1, and the other side of the switch S7. One terminal is grounded to the automatic exposure circuit 26 connected to the terminal, the switch S8 having one end connected to the output terminal OUT4 of the automatic exposure circuit 26, and the other terminal of the switch S8. A coil 216 connected to the other terminal, a low luminance warning output terminal OUT5 of the automatic exposure circuit 26 as an input, and an inverter 27 having an output terminal connected to a switch S8, A resistor in which a light emitting diode 220 having a cathode terminal connected to the output terminal of the inverter 27, a terminal connected to a power supply (VCC), and the other terminal connected to an anode terminal of the light emitting diode 220. Camera alarm device, characterized in that consisting of (224). The method of claim 5, wherein the speaker driver 40 is the output of the inverter 27 of the automatic drive unit 30, the output of the AND gate 25 of the autofocus processing unit 20 and the battery check unit 10 AND gate 28 to input the output of the battery check circuit 21, the inverter 29 to the output of the AND gate 28, and the output of the AND gate 28, the first input A switch S5 having a NAND gate 214 serving as an input of a terminal and an output of the alarm sound driver 15 of the normal mode driver 1 connected to one terminal and connected to an output of the NAND gate 214. And an alarm sound circuit 212 which inputs the other terminal of the switch S5, a speaker 213 having one terminal grounded and the other terminal connected to the output of the alarm sound circuit 212, and a general mode. One terminal is connected to the output terminal of the shutter switch control unit 13 of the driving unit 1 and is connected to the output terminal of the inverter 29. The switch S6, the shutter switch control circuit 210 connected to the other terminal of the switch S6, and the output of the shutter switch control circuit 210 are input, and the output terminal is the shutter switch SW2. Alarm device for a camera, characterized in that consisting of a reverser (211) is connected with.