CN113189924A - Control circuit of vision protection device for ophthalmologic patient - Google Patents
Control circuit of vision protection device for ophthalmologic patient Download PDFInfo
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- CN113189924A CN113189924A CN202110623754.2A CN202110623754A CN113189924A CN 113189924 A CN113189924 A CN 113189924A CN 202110623754 A CN202110623754 A CN 202110623754A CN 113189924 A CN113189924 A CN 113189924A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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Abstract
The invention relates to the field of medical instruments, in particular to a control circuit of an eyesight protection device for an ophthalmologic patient. The technical problem is as follows: a vision protection device control circuit for an ophthalmic patient is provided which can alert the ophthalmic patient. The technical scheme of the invention is as follows: a control circuit of a vision protection device for an ophthalmic patient comprises a power supply unit, a power switch, a first indicator light circuit, a first decimal counter/pulse distributor circuit and the like; the power switch is connected with the input end of the first indicator light circuit, and the power switch is connected with the input end of the first decimal counter/pulse distributor circuit. The invention can time by the electronic timer circuit, after the time is up, the second indicator light circuit lights to remind the ophthalmology patient to protect the eyes in time, and the buzzer can remind the ophthalmology patient that the surrounding light is dark to protect the eyes.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a control circuit of an eyesight protection device for an ophthalmologic patient.
Background
Ophthalmology is a disease which is researched and occurs in a visual system, and comprises eyeballs and related tissues thereof, such as dry eye, nyctalopia, astigmatism, trachoma, conjunctivitis and the like, an ophthalmic patient cannot use eyes excessively during treatment, otherwise, the condition of the ophthalmic patient is aggravated, but the ophthalmic patient possibly forgets to protect the eyes because of busy work or unconscious watching of electronic products in daily life and work, so that a control circuit of the eyesight protection device for the ophthalmic patient, which can remind the ophthalmic patient, is necessary to be designed.
Disclosure of Invention
In order to overcome the defect that an ophthalmic patient forgets to protect eyes because of busy work or getting lost when watching electronic products in daily life and work, the technical problem is as follows: a vision protection device control circuit for an ophthalmic patient is provided which can alert the ophthalmic patient.
The technical scheme of the invention is as follows: a control circuit of an eyesight protection device for an ophthalmic patient comprises a power supply unit, a power switch, a first indicator light circuit, a first decimal counter/pulse distributor circuit, a first key, a plurality of groups of electronic switch circuits, an LED indicator light group, an electronic timer circuit, a second key, a relay output circuit and a second indicator light circuit, wherein the power switch is connected with the input end of the first indicator light circuit, the power switch is connected with the input end of the first decimal counter/pulse distributor circuit, the first key is connected with the input end of the first decimal counter/pulse distributor circuit, the output end of the first decimal counter/pulse distributor circuit is connected with the input ends of the plurality of groups of electronic switch circuits, the output ends of the plurality of groups of electronic switch circuits are connected with the LED indicator light group, and the output ends of the plurality of groups of electronic switch circuits are connected with the input end of the electronic timer circuit, the second key is connected with the input end of the electronic timer circuit, the output end of the electronic timer circuit is connected with the input end of the relay output circuit, the output end of the relay output circuit is connected with the input end of the second indicator lamp circuit, and the power supply unit supplies power for the power switch, the first indicator lamp circuit, the first decimal counter/pulse distributor circuit, the first key, the multiple groups of electronic switch circuits, the LED indicator lamp group, the electronic timer circuit, the second key, the relay output circuit and the second indicator lamp circuit.
Optionally, still including photo resistance, illuminance detection circuitry, alarm circuit, bee calling organ and first potentiometre, relay output circuit's output and photo resistance are connected, photo resistance and illuminance detection circuitry's input are connected, illuminance detection circuitry's output and alarm circuit's input are connected, alarm circuit's output and bee calling organ are connected, photo resistance and first potentiometre are connected, power supply unit is photo resistance, illuminance detection circuitry, alarm circuit, bee calling organ and the power supply of first potentiometre.
Optionally, the first decimal counter/pulse distributor circuit comprises a decimal counter/pulse distributor CD4017-U1, a resistor R2 and a light-touch switch SW1, wherein pins 8, 13 and 15 of the decimal counter/pulse distributor CD4017-U1 are all grounded, pins 16 of the decimal counter/pulse distributor CD4017-U1 are connected with +9V, the resistor R2 and the light-touch switch SW1 are connected in series, the other end of the resistor R2 is grounded, and the other end of the light-touch switch SW1 is connected with + 9V.
Optionally, the plurality of sets of electronic switch circuits include four bidirectional analog switches CD4066-U3, four bidirectional analog switches CD4066-U4, four bidirectional analog switches CD4066-U5, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, and a resistor R12, wherein 7 pins of the four bidirectional analog switches CD4066-U3 are grounded, 14 pins of the four bidirectional analog switches CD4066-U3 are grounded +9V, 7 pins of the four bidirectional analog switches CD4066-U4 are grounded, 14 pins of the four bidirectional analog switches CD4066-U4 are grounded +9V, pins of the four bidirectional analog switches CD4066-U5 are grounded, 14 pins of the four bidirectional analog switches CD 4066-U4042 are grounded +9V, and pins of the decimal analog switch CD 465-U465 and decimal pulse distributor of the four bidirectional analog switches CD4066-U3, the 6 feet of the four-two-way analog switch CD4066-U3 are connected with the 4 feet of the decimal counter/pulse distributor CD4017-U1, the 5 feet of the four-two-way analog switch CD4066-U4 are connected with the 1 foot of the decimal counter/pulse distributor CD4017-U1, the 6 feet of the four-two-way analog switch CD4066-U4 are connected with the 5 feet of the decimal counter/pulse distributor CD4017-U1, the 13 feet of the four-two-way analog switch CD4066-U5 are connected with the 9 feet of the decimal counter/pulse distributor CD4017-U1, the 5 feet of the four-two-way analog switch CD4066-U5 are connected with the 11 feet of the decimal counter/pulse distributor CD4017-U1, the 2 feet of the four-two-way analog switch CD4066-U3 are connected with one end of a resistor R3, one end of the four-two-way analog switch CD4066-U3 is connected with one end of a resistor R4, the 11 feet of the four-way analog switch CD4066-U3 are connected with one end of a resistor R5, the 8 feet of the four-way analog switch CD4066-U3 are connected with one end of a resistor R6, the 3 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R7, the 9 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R8, the 10 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R9, the 10 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R10, the 1 foot of the four-way analog switch CD4066-U5 is connected with one end of a resistor R11, and the 4 feet of the four-way analog switch CD4066-U5 are connected with one end of a resistor R12.
Optionally, the LED indicating lamp set comprises a light emitting diode VD1, a light emitting diode VD2, a light emitting diode VD3, a light emitting diode VD4, a light emitting diode VD5, a light emitting diode VD6, a light emitting diode VD7, a light emitting diode VD8, a light emitting diode VD9 and a light emitting diode VD10, wherein 1 pin of the four bidirectional analog switch CD4066-U3 is connected to the cathode of the light emitting diode VD1, the anode of the light emitting diode VD1 is connected to +9V, 3 pins of the four bidirectional analog switch CD4066-U3 are connected to the cathode of the light emitting diode VD2, the anode of the light emitting diode VD2 is connected to +9V, the 9 pin of the four bidirectional analog switch CD4066-U3 is connected to the cathode of the light emitting diode VD3, the anode of the light emitting diode VD3 is connected to +9V, the 10 pin of the four bidirectional analog switch CD4066-U3 is connected to the cathode of the light emitting diode VD4, and the anode of the light emitting diode VD4 is connected to + V, the 10 pins of the four-way analog switch CD4066-U3 are connected with the cathode of the light-emitting diode VD5, the anode of the light-emitting diode VD5 is connected with +9V, the 4 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD6, the anode of the light-emitting diode VD6 is connected with +9V, the 8 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD7, the anode of the light-emitting diode VD7 is connected with +9V, the 11 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD8, the anode of the light-emitting diode VD8 is connected with +9V, the 2 pins of the four-way analog switch CD4066-U5 are connected with the cathode of the light-emitting diode VD9, the anode of the light-emitting diode VD9 is connected with +9V, the pin of the four-two-way analog switch CD4066-U5 is connected with the cathode of the light-emitting diode VD10, the anode of the light emitting diode VD10 is connected with + 9V.
Optionally, the electronic timer circuit comprises a time base integrated circuit NE555-U2, a resistor R1, a tact switch SW2 and a capacitor C1, wherein the other ends of the resistor R3, the resistor R4, the resistor R5, the resistor R6, the resistor R7, the resistor R8, the resistor R9 and the resistor R10 are connected with the 7 pins of the time base integrated circuit NE555-U2, the 5-pin series capacitor C1 of the time base integrated circuit NE555-U2 is grounded, the 4 pins and the 8 pins of the time base integrated circuit NE555-U2 are connected with +6V, the resistor R1 and the tact switch SW2 are connected in series, the other end of the resistor R1 is connected with +6V, the other end of the tact switch SW2 is grounded, and the 2 pin of the time base integrated circuit NE555-U2 is connected with the middle point of the series connection of the resistor R1 and the tact switch SW 2.
Optionally, the relay output circuit includes a relay RL1, a diode D1, a light emitting diode VD11, a light emitting diode VD12, a resistor R17 and a resistor R18, the 3 pin of the time base integrated circuit NE555-U2 is connected with one end of a coil of the relay RL1, the other end of the coil of the relay RL1 is connected with +5V, the other end of the coil of the relay RL1 is connected with the diode D1, the resistor R17 and the anode of the light emitting diode VD11 in series, the cathode of the light emitting diode VD11 is connected with +5V, the COM end of the relay RL1 is connected with +9V, the OFF end of the relay RL1 is connected with the resistor R18 and the anode of the light emitting diode VD12 in series, and the cathode of the light emitting diode VD12 is grounded.
Optionally, the illuminance detection circuit includes a time-base integrated circuit NE555-U6, a resistor R13, a resistor R14, an electrolytic capacitor EC1 and a photo-resistor RG1, where pin 1 of the time-base integrated circuit NE555-U6 is grounded, pin 8 of the time-base integrated circuit NE555-U6 is connected in series with a resistor R13, a resistor R14 and an electrolytic capacitor EC1, the other end of the electrolytic capacitor EC1 is grounded, pin 7 of the time-base integrated circuit NE555-U6 is connected to a series middle point of the resistor R13 and the resistor R14, pin 2 of the time-base integrated circuit NE555-U6 is connected to a series middle point of the resistor R14 and the electrolytic capacitor EC1, and pin 6 of the time-base integrated circuit NE555-U6 is connected in series with the photo-resistor RG 1.
Optionally, the alarm circuit includes a triode Q1, a diode D2, a diode D3, a resistor R15, a resistor R16 and a buzzer BZ1, the 3-pin of the time-base integrated circuit NE555-U6 is connected in series with the diode D3 and the cathode of the diode D2, the anode of the diode D2 is connected with the 5-pin of the time-base integrated circuit NE555-U6, the emitter of the triode Q1 is connected with the OFF end of the relay RL1, the base of the triode Q1 is connected with one end of the resistor R15, the other end of the resistor R15 is connected with the middle point of the series connection of the diode D3 and the diode D2, the collector of the triode Q1 is connected with the resistor R16 and the buzzer BZ1 in series, and the other end of the buzzer BZ1 is grounded.
Optionally, the first potentiometer is a potentiometer VR1, the 6 pins of the time base integrated circuit NE555-U6 are connected with one end of the potentiometer VR1, and the other end and the adjustable end of the potentiometer VR1 are connected with the 8 pins of the time base integrated circuit NE 555-U6.
The invention has the beneficial effects that: the invention can time by the electronic timer circuit, after the time is up, the second indicator light circuit lights to remind the ophthalmology patient to protect the eyes in time, and the buzzer can remind the ophthalmology patient that the surrounding light is dark to protect the eyes.
Drawings
FIG. 1 is a block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Description of reference numerals: 1: power supply unit, 2: power switch, 3: first indicator light circuit, 4: first decimal counter/pulse distributor circuit, 5: first key, 6: multiple sets of electronic switching circuits, 7: LED pilot lamp group, 8: electronic timer circuit, 9: second key, 10: relay output circuit, 11: photoresistor, 12: illuminance detection circuit, 13: alarm circuit, 14: buzzer, 15: second indicator light circuit, 16: a first potentiometer.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Example 1
A control circuit of an eyesight protection device for an ophthalmic patient is shown in figure 1 and comprises a power supply unit 1, a power switch 2, a first indicator light circuit 3, a first decimal counter/pulse distributor circuit 4, a first key 5, a plurality of groups of electronic switch circuits 6, an LED indicator light group 7, an electronic timer circuit 8, a second key 9, a relay output circuit 10 and a second indicator light circuit 15, wherein the power switch 2 is connected with the input end of the first indicator light circuit 3, the power switch 2 is connected with the input end of the first decimal counter/pulse distributor circuit 4, the first key 5 is connected with the input end of the first decimal counter/pulse distributor circuit 4, the output end of the first decimal counter/pulse distributor circuit 4 is connected with the input ends of the plurality of groups of electronic switch circuits 6, the output end of the multi-group electronic switch circuit 6 is connected with the LED indicating lamp group 7, the output end of the multi-group electronic switch circuit 6 is connected with the input end of the electronic timer circuit 8, the second key 9 is connected with the input end of the electronic timer circuit 8, the output end of the electronic timer circuit 8 is connected with the input end of the relay output circuit 10, the output end of the relay output circuit 10 is connected with the input end of the second indicating lamp circuit 15, and the power supply unit 1 supplies power for the power switch 2, the first indicating lamp circuit 3, the first decimal counter/pulse distributor circuit 4, the first key 5, the multi-group electronic switch circuit 6, the LED indicating lamp group 7, the electronic timer circuit 8, the second key 9, the relay output circuit 10 and the second indicating lamp circuit 15.
The ophthalmic patient presses the power switch 2, the control circuit of the vision protection device of the ophthalmic patient is powered on, the first indicator light circuit 3 is lightened, the first decimal counter/pulse distributor circuit 4 starts to work, the timing time of the first decimal counter/pulse distributor circuit 4 can be selected through the first key 5, the multiple groups of electronic switch circuits 6 control the corresponding indicator lights on the LED indicator light group 7 to be lightened, the electronic timer circuit 8 starts to time, after the time is up, the relay output circuit 10 is attracted, the second indicator light circuit 15 is lightened to remind the ophthalmic patient to protect the eyes in time, the ophthalmic patient presses the second key 9, the electronic timer circuit 8 restarts timing, the relay output circuit 10 is disconnected, the second indicator light circuit 15 is extinguished, the power switch 2 is pressed again, and the control circuit of the vision protection device of the ophthalmic patient is powered off, the first indicator light circuit 3 is turned off.
Example 2
On the basis of embodiment 1, as shown in fig. 1, the lighting device further includes a photo resistor 11, an illuminance detection circuit 12, an alarm circuit 13, a buzzer 14 and a first potentiometer 16, an output end of the relay output circuit 10 is connected with the photo resistor 11, the photo resistor 11 is connected with an input end of the illuminance detection circuit 12, an output end of the illuminance detection circuit 12 is connected with an input end of the alarm circuit 13, an output end of the alarm circuit 13 is connected with the buzzer 14, the photo resistor 11 is connected with the first potentiometer 16, and the power supply unit 1 supplies power to the photo resistor 11, the illuminance detection circuit 12, the alarm circuit 13, the buzzer 14 and the first potentiometer 16.
The photo resistance 11 can detect the illumination intensity, when the illumination value that the photo resistance 11 detected is less than the benchmark value in the illuminance detection circuit 12, alarm circuit 13 control buzzer 14 sounds, remind the light around the ophthalmology patient darker, pay attention to the protection eyes, when the illumination value that the photo resistance 11 detected is higher than the benchmark value in the illuminance detection circuit 12, alarm circuit 13 control buzzer 14 closes, can set up the benchmark value of illuminance detection circuit 12 through first potentiometre 16.
Example 3
A control circuit of an eyesight protection device for an ophthalmic patient is disclosed, as shown in fig. 2, the first decimal counter/pulse distributor circuit 4 comprises a decimal counter/pulse distributor CD4017-U1, a resistor R2 and a light-touch switch SW1, wherein pins 8, 13 and 15 of the decimal counter/pulse distributor CD4017-U1 are all grounded, pins 16 of the decimal counter/pulse distributor CD4017-U1 are connected with +9V, the resistor R2 and the light-touch switch SW1 are connected in series, the other end of the resistor R2 is grounded, and the other end of the light-touch switch SW1 is connected with + 9V.
The multi-group electronic switch circuit 6 comprises four bidirectional analog switches CD4066-U3, four bidirectional analog switches CD4066-U4, four bidirectional analog switches CD4066-U5, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11 and a resistor R12, wherein 7 pins of the four bidirectional analog switches CD4066-U3 are grounded, 14 pins of the four bidirectional analog switches CD4066-U3 are grounded at +9V, 7 pins of the four bidirectional analog switches CD4066-U4 are grounded, 14 pins of the four bidirectional analog switches CD4066-U4 are grounded at +9V, pins of the four bidirectional analog switches CD 4066-U84 are grounded, 14 pins of the four bidirectional analog switches CD 4066-U394042 are grounded, and a decimal analog switch counter of the four bidirectional analog switches CD 4066-U465 and a decimal pulse distributor of the four bidirectional analog switches CD 4017-U465 and U465, the 6 feet of the four-two-way analog switch CD4066-U3 are connected with the 4 feet of the decimal counter/pulse distributor CD4017-U1, the 5 feet of the four-two-way analog switch CD4066-U4 are connected with the 1 foot of the decimal counter/pulse distributor CD4017-U1, the 6 feet of the four-two-way analog switch CD4066-U4 are connected with the 5 feet of the decimal counter/pulse distributor CD4017-U1, the 13 feet of the four-two-way analog switch CD4066-U5 are connected with the 9 feet of the decimal counter/pulse distributor CD4017-U1, the 5 feet of the four-two-way analog switch CD4066-U5 are connected with the 11 feet of the decimal counter/pulse distributor CD4017-U1, the 2 feet of the four-two-way analog switch CD4066-U3 are connected with one end of a resistor R3, one end of the four-two-way analog switch CD4066-U3 is connected with one end of a resistor R4, the 11 feet of the four-way analog switch CD4066-U3 are connected with one end of a resistor R5, the 8 feet of the four-way analog switch CD4066-U3 are connected with one end of a resistor R6, the 3 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R7, the 9 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R8, the 10 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R9, the 10 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R10, the 1 foot of the four-way analog switch CD4066-U5 is connected with one end of a resistor R11, and the 4 feet of the four-way analog switch CD4066-U5 are connected with one end of a resistor R12.
The LED indicating lamp group 7 comprises a light-emitting diode VD1, a light-emitting diode VD2, a light-emitting diode VD3, a light-emitting diode VD4, a light-emitting diode VD5, a light-emitting diode VD6, a light-emitting diode VD7, a light-emitting diode VD8, a light-emitting diode VD9 and a light-emitting diode VD10, wherein 1 pin of the four-way analog switch CD4066-U3 is connected with the cathode of the light-emitting diode VD1, the anode of the light-emitting diode VD1 is connected with +9V, the 3 pin of the four-way analog switch CD4066-U3 is connected with the cathode of the light-emitting diode VD2, the anode of the light-emitting diode VD2 is connected with +9V, the 9 pin of the four-way analog switch CD4066-U3 is connected with the cathode of the light-emitting diode VD3, the anode of the light-emitting diode VD3 is connected with +9V, the pin of the four-way analog switch CD4066-U3 is connected with the cathode of the light-emitting diode VD, the 10 pins of the four-way analog switch CD4066-U3 are connected with the cathode of the light-emitting diode VD5, the anode of the light-emitting diode VD5 is connected with +9V, the 4 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD6, the anode of the light-emitting diode VD6 is connected with +9V, the 8 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD7, the anode of the light-emitting diode VD7 is connected with +9V, the 11 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD8, the anode of the light-emitting diode VD8 is connected with +9V, the 2 pins of the four-way analog switch CD4066-U5 are connected with the cathode of the light-emitting diode VD9, the anode of the light-emitting diode VD9 is connected with +9V, the pin of the four-two-way analog switch CD4066-U5 is connected with the cathode of the light-emitting diode VD10, the anode of the light emitting diode VD10 is connected with + 9V.
The electronic timer circuit 8 comprises a time base integrated circuit NE555-U2, a resistor R1, a light touch switch SW2 and a capacitor C1, wherein the other ends of the resistor R3, the resistor R4, the resistor R5, the resistor R6, the resistor R7, the resistor R8, the resistor R9 and the resistor R10 are connected with 7 pins of the time base integrated circuit NE555-U2, the 5-pin series capacitor C1 of the time base integrated circuit NE555-U2 is grounded, 4 pins and 8 pins of the time base integrated circuit NE555-U2 are connected with +6V respectively, the resistor R1 and the light touch switch SW2 are connected in series, the other end of the resistor R1 is connected with +6V, the other end of the light touch switch SW2 is grounded, and the 2 pin of the time base integrated circuit NE555-U2 is connected with the middle point of the series connection of the resistor R1 and the light touch switch SW 2.
The relay output circuit 10 comprises a relay RL1, a diode D1, a light-emitting diode VD11, a light-emitting diode VD12, a resistor R17 and a resistor R18, wherein the 3 pin of the time-base integrated circuit NE555-U2 is connected with one end of a coil of the relay RL1, the other end of the coil of the relay RL1 is connected with +5V, the other end of the coil of the relay RL1 is connected with the diode D1, the resistor R17 and the anode of the light-emitting diode VD11 in series, the cathode of the light-emitting diode VD11 is connected with +5V, the COM end of the relay RL1 is connected with +9V, the OFF end of the relay RL1 is connected with the resistor R18 and the anode of the light-emitting diode VD12 in series, and the cathode of the light-emitting diode VD12 is grounded.
The illuminance detection circuit 12 comprises a time-base integrated circuit NE555-U6, a resistor R13, a resistor R14, an electrolytic capacitor EC1 and a photosensitive resistor RG1, wherein a pin 1 of the time-base integrated circuit NE555-U6 is grounded, a pin 8 of the time-base integrated circuit NE555-U6 is connected with a resistor R13, a resistor R14 and an electrolytic capacitor EC1 in series, the other end of the electrolytic capacitor EC1 is grounded, a pin 7 of the time-base integrated circuit NE555-U6 is connected with a series middle point of the resistor R13 and the resistor R14, a pin 2 of the time-base integrated circuit NE555-U6 is connected with a series middle point of the resistor R14 and the electrolytic capacitor EC1, and a pin 6 of the time-base integrated circuit NE555-U6 is connected with a photosensitive resistor RG1 in series.
The alarm circuit 13 comprises a triode Q1, a diode D2, a diode D3, a resistor R15, a resistor R16 and a buzzer BZ1, wherein a 3 pin of the time-base integrated circuit NE555-U6 is connected with a diode D3 and a cathode of the diode D2 in series, an anode of the diode D2 is connected with a 5 pin of the time-base integrated circuit NE555-U6, an emitter of the triode Q1 is connected with an OFF end of a relay RL1, a base of the triode Q1 is connected with one end of the resistor R15, the other end of the resistor R15 is connected with a series middle point of the diode D3 and the diode D2, a collector of the triode Q1 is connected with a resistor R16 and the buzzer BZ1 in series, and the other end of the buzzer BZ1 is grounded.
The first potentiometer 16 is a potentiometer VR1, the 6 pins of the time base integrated circuit NE555-U6 are connected with one end of the potentiometer VR1, and the other end and the adjustable end of the potentiometer VR1 are connected with the 8 pins of the time base integrated circuit NE 555-U6.
After the control circuit of the vision protection device for the ophthalmic patient is powered on, the light emitting diode VD11 is lightened, the light sensitive resistor RG1 starts working, the timing time of a decimal counter/pulse distributor CD4017-U1 can be selected by lightly touching the switch SW1, the four two-way analog switches CD4066-U3, the four two-way analog switches CD4066-U4 and the four two-way analog switches CD4066-U5 output high level, the corresponding light emitting diodes VD1, the light emitting diode VD2, the light emitting diode VD3, the light emitting diode VD4, the light emitting diode VD5, the light emitting diode VD6, the light emitting diode VD7, the light emitting diode VD8, the light emitting diode VD9 and the light emitting diode VD10 are lightened, the time base integrated circuit NE555-U2 starts timing, after the timing time is up, the time base integrated circuit NE555-U2 outputs high level, the relay RL1 is attracted, the light emitting diode VD12 lights up, the eye protection device reminds the ophthalmic patient to protect the eye in time, when the tact switch SW2 is pressed, the time base integrated circuit NE555-U2 restarts timing, the time base integrated circuit NE555-U2 outputs low level, the relay RL1 is disconnected, the light emitting diode VD12 is extinguished, the light sensitive resistor RG1 can detect the illumination intensity around and input the detected data into the time base integrated circuit NE555-U6, the time base integrated circuit NE555-U6 can compare the detected value with the reference value, when the detected value is lower than the reference value, the time base integrated circuit NE555-U6 outputs high level, the triode Q1 is conducted, the buzzer BZ1 sounds to remind that the light around the ophthalmologic patient is dark, the eyes are protected, when the detected value is higher than the reference value, the time base integrated circuit NE555-U6 outputs low level, the triode Q1 is cut off, the buzzer BZ1 does not sound, the reference value of the time base integrated circuit NE555-U6 can be adjusted through the potentiometer VR1, after the control circuit of the vision protection device of the ophthalmic patient is powered off, the light-emitting diode VD11 is extinguished, and the light-sensitive resistor RG1 is closed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an ophthalmology patient eyesight protection device control circuit which characterized in that: comprises a power supply unit (1), a power switch (2), a first indicator light circuit (3), a first decimal counter/pulse distributor circuit (4), a first key (5), a plurality of groups of electronic switch circuits (6), an LED indicator light group (7), an electronic timer circuit (8), a second key (9), a relay output circuit (10) and a second indicator light circuit (15), wherein the power switch (2) is connected with the input end of the first indicator light circuit (3), the power switch (2) is connected with the input end of the first decimal counter/pulse distributor circuit (4), the first key (5) is connected with the input end of the first decimal counter/pulse distributor circuit (4), the output end of the first decimal counter/pulse distributor circuit (4) is connected with the input ends of the plurality of groups of electronic switch circuits (6), the output end of the multi-group electronic switch circuit (6) is connected with the LED indicator light group (7), the output end of the multi-group electronic switch circuit (6) is connected with the input end of the electronic timer circuit (8), the second key (9) is connected with the input end of the electronic timer circuit (8), the output end of the electronic timer circuit (8) is connected with the input end of the relay output circuit (10), the output end of the relay output circuit (10) is connected with the input end of the second indicator light circuit (15), the power supply unit (1) is a power switch (2), a first indicator light circuit (3), a first decimal counter/pulse distributor circuit (4), a first key (5), the multi-group electronic switch circuit (6), the LED indicator light group (7), the electronic timer circuit (8), a second key (9), The relay output circuit (10) and the second indicator light circuit (15) supply power.
2. The ophthalmic patient vision protection device control circuit of claim 1, wherein: still including photo resistance (11), illuminance detection circuitry (12), alarm circuit (13), bee calling organ (14) and first potentiometre (16), the output and photo resistance (11) of relay output circuit (10) are connected, photo resistance (11) and illuminance detection circuitry's (12) input are connected, illuminance detection circuitry's (12) output and alarm circuit's (13) input are connected, alarm circuit's (13) output and bee calling organ (14) are connected, photo resistance (11) and first potentiometre (16) are connected, power supply unit (1) is photo resistance (11), illuminance detection circuitry (12), alarm circuit (13), bee calling organ (14) and first potentiometre (16) power supply.
3. The ophthalmic patient vision protection device control circuit of claim 2, wherein: the first decimal counter/pulse distributor circuit (4) comprises a decimal counter/pulse distributor CD4017-U1, a resistor R2 and a light-touch switch SW1, wherein pins 8, 13 and 15 of the decimal counter/pulse distributor CD4017-U1 are all grounded, pins 16 of the decimal counter/pulse distributor CD4017-U1 are connected with +9V, the resistor R2 and the light-touch switch SW1 are connected in series, the other end of the resistor R2 is grounded, and the other end of the light-touch switch SW1 is connected with + 9V.
4. The ophthalmic patient vision protection device control circuit of claim 3, wherein: the multi-group electronic switch circuit (6) comprises four bidirectional analog switches CD4066-U3, four bidirectional analog switches CD4066-U4, four bidirectional analog switches CD4066-U5, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11 and a resistor R12, wherein 7 pins of the four bidirectional analog switches CD4066-U3 are grounded, 14 pins of the four bidirectional analog switches CD4066-U3 are grounded +9V, 7 pins of the four bidirectional analog switches CD4066-U4 are grounded, 14 pins of the four bidirectional analog switches CD4066-U4 are grounded +9V, pins of the four bidirectional analog switches CD4066-U5 are grounded, 14 pins of the four bidirectional analog switches CD 4066-U4042 are connected with +9V, and pins of the decimal analog switch CD 465-U465 and a decimal pulse distributor of the four bidirectional analog switches CD4066-U3, the 6 feet of the four-two-way analog switch CD4066-U3 are connected with the 4 feet of the decimal counter/pulse distributor CD4017-U1, the 5 feet of the four-two-way analog switch CD4066-U4 are connected with the 1 foot of the decimal counter/pulse distributor CD4017-U1, the 6 feet of the four-two-way analog switch CD4066-U4 are connected with the 5 feet of the decimal counter/pulse distributor CD4017-U1, the 13 feet of the four-two-way analog switch CD4066-U5 are connected with the 9 feet of the decimal counter/pulse distributor CD4017-U1, the 5 feet of the four-two-way analog switch CD4066-U5 are connected with the 11 feet of the decimal counter/pulse distributor CD4017-U1, the 2 feet of the four-two-way analog switch CD4066-U3 are connected with one end of a resistor R3, one end of the four-two-way analog switch CD4066-U3 is connected with one end of a resistor R4, the 11 feet of the four-way analog switch CD4066-U3 are connected with one end of a resistor R5, the 8 feet of the four-way analog switch CD4066-U3 are connected with one end of a resistor R6, the 3 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R7, the 9 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R8, the 10 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R9, the 10 feet of the four-way analog switch CD4066-U4 are connected with one end of a resistor R10, the 1 foot of the four-way analog switch CD4066-U5 is connected with one end of a resistor R11, and the 4 feet of the four-way analog switch CD4066-U5 are connected with one end of a resistor R12.
5. The ophthalmic patient vision protection device control circuit of claim 4, wherein: the LED indicator lamp group (7) comprises a light emitting diode VD1, a light emitting diode VD2, a light emitting diode VD3, a light emitting diode VD4, a light emitting diode VD5, a light emitting diode VD6, a light emitting diode VD7, a light emitting diode VD8, a light emitting diode VD9 and a light emitting diode VD10, wherein 1 pin of a four-way analog switch CD4066-U3 is connected with the cathode of the light emitting diode VD1, the anode of the light emitting diode VD1 is connected with +9V, 3 pins of the four-way analog switch CD4066-U3 are connected with the cathode of the light emitting diode VD2, the anode of the light emitting diode VD2 is connected with +9V, the 9 pin of the four-way analog switch CD4066-U3 is connected with the cathode of the light emitting diode VD3, the anode of the light emitting diode VD3 is connected with +9V, the 10 pin of the four-way analog switch CD4066-U3 is connected with the cathode of the light emitting diode VD4, and the anode of the light emitting diode VD4 is connected with + VD 9V, the 10 pins of the four-way analog switch CD4066-U3 are connected with the cathode of the light-emitting diode VD5, the anode of the light-emitting diode VD5 is connected with +9V, the 4 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD6, the anode of the light-emitting diode VD6 is connected with +9V, the 8 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD7, the anode of the light-emitting diode VD7 is connected with +9V, the 11 pins of the four-way analog switch CD4066-U4 are connected with the cathode of the light-emitting diode VD8, the anode of the light-emitting diode VD8 is connected with +9V, the 2 pins of the four-way analog switch CD4066-U5 are connected with the cathode of the light-emitting diode VD9, the anode of the light-emitting diode VD9 is connected with +9V, the pin of the four-two-way analog switch CD4066-U5 is connected with the cathode of the light-emitting diode VD10, the anode of the light emitting diode VD10 is connected with + 9V.
6. The ophthalmic patient vision protection device control circuit of claim 5, wherein: the electronic timer circuit (8) comprises a time base integrated circuit NE555-U2, a resistor R1, a light touch switch SW2 and a capacitor C1, wherein the other ends of the resistor R3, the resistor R4, the resistor R5, the resistor R6, the resistor R7, the resistor R8, the resistor R9 and the resistor R10 are connected with a 7 pin of the time base integrated circuit NE555-U2, a 5 pin series capacitor C1 of the time base integrated circuit NE555-U2 is grounded, 4 pins and 8 pins of the time base integrated circuit NE555-U2 are connected with +6V respectively, the resistor R1 is connected with the light touch switch SW2 in series, the other end of the resistor R1 is connected with +6V, the other end of the light touch switch SW2 is grounded, and a 2 pin of the time base integrated circuit NE555-U2 is connected with a series intermediate point between the resistor R1 and the light touch switch SW 2.
7. The ophthalmic patient vision protection device control circuit of claim 6, wherein: the relay output circuit (10) comprises a relay RL1, a diode D1, a light emitting diode VD11, a light emitting diode VD12, a resistor R17 and a resistor R18, wherein the 3 pin of the time base integrated circuit NE555-U2 is connected with one end of a relay RL1 coil, the other end of the relay RL1 coil is connected with +5V, the other end of the relay RL1 coil is connected with the diode D1, the resistor R17 and the anode of the light emitting diode VD11 in series, the cathode of the light emitting diode VD11 is connected with +5V, the COM end of the relay RL1 is connected with +9V, the OFF end of the relay RL1 is connected with the resistor R18 and the anode of the light emitting diode VD12 in series, and the cathode of the light emitting diode VD12 is grounded.
8. The ophthalmic patient vision protection device control circuit of claim 7, wherein: the illuminance detection circuit (12) comprises a time-base integrated circuit NE555-U6, a resistor R13, a resistor R14, an electrolytic capacitor EC1 and a photosensitive resistor RG1, wherein a pin 1 of the time-base integrated circuit NE555-U6 is grounded, an 8-pin series resistor R13, a resistor R14 and an electrolytic capacitor EC1 of the time-base integrated circuit NE555-U6, the other end of the electrolytic capacitor EC1 is grounded, a pin 7 of the time-base integrated circuit NE555-U6 is connected with a series middle point of the resistor R13 and the resistor R14, a pin 2 of the time-base integrated circuit NE555-U6 is connected with a series middle point of the resistor R14 and the electrolytic capacitor EC1, and a pin 6 of the time-base integrated circuit NE555-U6 is connected with the photosensitive resistor RG1 in series.
9. The ophthalmic patient vision protection device control circuit of claim 8, wherein: the alarm circuit (13) comprises a triode Q1, a diode D2, a diode D3, a resistor R15, a resistor R16 and a buzzer BZ1, wherein a 3 pin of the time-base integrated circuit NE555-U6 is connected with a cathode of the diode D3 and a cathode of the diode D2 in series, an anode of the diode D2 is connected with a 5 pin of the time-base integrated circuit NE555-U6, an emitter of the triode Q1 is connected with an OFF end of a relay RL1, a base of the triode Q1 is connected with one end of the resistor R15, the other end of the resistor R15 is connected with a series middle point of the diode D3 and the diode D2, a collector of the triode Q1 is connected with a resistor R16 and the buzzer BZ1 in series, and the other end of the buzzer BZ1 is grounded.
10. The ophthalmic patient vision protection device control circuit of claim 9, wherein: the first potentiometer (16) is a potentiometer VR1, the 6 pins of the time base integrated circuit NE555-U6 are connected with one end of the potentiometer VR1, and the other end and the adjustable end of the potentiometer VR1 are connected with the 8 pins of the time base integrated circuit NE 555-U6.
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| CN202110623754.2A CN113189924A (en) | 2021-06-04 | 2021-06-04 | Control circuit of vision protection device for ophthalmologic patient |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110623754.2A CN113189924A (en) | 2021-06-04 | 2021-06-04 | Control circuit of vision protection device for ophthalmologic patient |
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| CN113189924A true CN113189924A (en) | 2021-07-30 |
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| CN202110623754.2A Pending CN113189924A (en) | 2021-06-04 | 2021-06-04 | Control circuit of vision protection device for ophthalmologic patient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113853043A (en) * | 2021-10-29 | 2021-12-28 | 冯世祥 | LED miner's lamp alarm control circuit |
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Application publication date: 20210730 |