CN204392659U - A kind of myopia prevention desk lamp controller - Google Patents
A kind of myopia prevention desk lamp controller Download PDFInfo
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- CN204392659U CN204392659U CN201520105019.2U CN201520105019U CN204392659U CN 204392659 U CN204392659 U CN 204392659U CN 201520105019 U CN201520105019 U CN 201520105019U CN 204392659 U CN204392659 U CN 204392659U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a kind of myopia prevention desk lamp controller, comprise micro controller module and connect with described micro controller module output for remind user's sitting posture voice warning circuit, be the lighting circuit of setting range and the digital pipe display circuit for range of a signal parameter for adjusting intensity of illumination, the input of described micro controller module is connected to infrared distance sensor for detecting face and desk lamp distance, gather the optical sensor of the real-time illumination of LED and the button for arranging distance and illuminance threshold value arranges circuit; The loud speaker that described voice warning circuit comprises voice driven circuit and connects with described voice driven circuit output end, the LED that described lighting circuit comprises LED regulating circuit and connects with described LED regulating circuit output, the utility model is novel in design, structure is simple, there is the function of infrared survey people and desk lamp distance and automatic adjustable desk lamp illuminance, timely prompting user sitting posture, pre-myopia prevention, practical.
Description
Technical field
The utility model belongs to daily living article technical field, is specifically related to a kind of myopia prevention desk lamp controller.
Background technology
Modern Urban Living rhythm is fast, living environment factor is also in continuous conversion, computer, mobile phone, panel computer is not rare object for adult or child, the myopia problem caused for excessive eye is not within minority, and the people in all ages and classes stage has different pressure, teenager is in the face of entering a higher school pressure, operation is heavy, every day, classes are over to fulfil assignment all till all hours, the student worn glasses gets more and more, students in middle and primary schools' visual impairment is the current major issue affecting juvenile healthy, the head of a family is for the visual problems of child, can not ignore, the articles for daily use of child's indispensability when learning to do the homework are exactly desk lamp, as everyone knows, abnormal sitting posture is true or eye distance desktop books are too near, capital affects one's power of vision.Occur that various range finding desk lamp is for anti-adolescent myopia in the market, such as ultrasonic ranging, complicated operation precision is low, cost is high, and for light regulating technology, most employing button setting threshold, choose different gears, armstrong's patent, the relay tripping operation when illumination exceedes threshold value, desk lamp lamp goes out and reminds light too by force or too dark, vision protection, when then using desk lamp, desk lamp need be reopened, unnecessary trouble is brought to user, therefore, nowadays a kind of structure is lacked simple, volume is little, be convenient to install and lay easy to operate myopia prevention desk lamp controller, by the real-time distance of infrared radio induction face to desk lamp, when the distance gathered is less than the distance threshold of setting, loud speaker reminds user to correct bad habit in time, simultaneously by the illumination of optical sensor Real-time Collection LED, when illumination is not in setting range, automatic light regulating, solve existing intelligent desk lamp complicated operation, volume is heavy, light regulating repeatedly extinguishes or lights, the problems such as impact study.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of myopia prevention desk lamp controller is provided, it is rationally novel in design, there is the function of infrared survey people and desk lamp distance and automatic adjustable desk lamp illuminance, timely prompting user sitting posture, pre-myopia prevention, practical, be convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of myopia prevention desk lamp controller, it is characterized in that: the voice warning circuit, lighting circuit and the digital pipe display circuit that comprise micro controller module and connect with described micro controller module output, the input of described micro controller module is connected to infrared distance sensor, optical sensor and button and arranges circuit, the loud speaker that described voice warning circuit comprises voice driven circuit and connects with described voice driven circuit output end, the LED that described lighting circuit comprises LED regulating circuit and connects with described LED regulating circuit output, described micro controller module is P87LPC768 single-chip microcomputer, described LED regulating circuit comprises chip LM3402, described LED is LED, the VIN pin of described chip LM3402 exports point three tunnels, one tunnel connects with 24V power output end, resistance R10 of separately leading up to connects with the RON pin of chip LM3402, 3rd tunnel connects with one end of electric capacity C9, the other end ground connection of electric capacity C9, the DIM pin of described chip LM3402 connects with the 1st pin of P87LPC768 single-chip microcomputer, the GND pin ground connection of described chip LM3402, the BOOT pin of described chip LM3402 connects with one end of electric capacity C8, the other end of electric capacity C8 exports point three tunnels, one tunnel connects with the SW pin of chip LM3402, another road connects with one end of inductance L 1, 3rd tunnel connects with the negative pole of voltage stabilizing didoe D2, the plus earth of voltage stabilizing didoe D2, the other end of described inductance L 1 exports a point two-way, one tunnel connects with one end of electric capacity C10, another road connects with the positive pole of LED, the other end of electric capacity C10 and the negative pole of LED all connect with the CS pin of chip LM3402, the CS pin of described chip LM3402 also connects with one end of resistance R14, the other end ground connection of resistance R14, the VCC pin of described chip LM3402 connects with one end of electric capacity C11, the other end ground connection of electric capacity C11.
Above-mentioned a kind of myopia prevention desk lamp controller, it is characterized in that: described infrared distance sensor is GP2D12 infrared distance sensor, 1st pin of described GP2D12 infrared distance sensor connects with 5V power output end, 2nd pin of described GP2D12 infrared distance sensor connects with the 18th pin of P87LPC768 single-chip microcomputer, the 3rd pin ground connection of described GP2D12 infrared distance sensor.
Above-mentioned a kind of myopia prevention desk lamp controller, it is characterized in that: described optical sensor comprises chip I SL29004, the SCL pin of described chip I SL29004 exports a point two-way, one tunnel connects with the 10th pin of P87LPC768 single-chip microcomputer, another road connects with one end of resistance R5, the SDA pin of described chip I SL29004 exports a point two-way, one tunnel connects with the 9th pin of P87LPC768 single-chip microcomputer, another road connects with one end of resistance R4, the other end of resistance R5 and the other end of resistance R4 all connect with 3.3V power output end, the REXT pin of described chip I SL29004 connects with one end of resistance R3, the VDD pin of described chip I SL29004 exports a point two-way, one tunnel connects with 3.3V power output end, another road connects with one end of electric capacity C5, the GND pin of described chip I SL29004, A0 pin, A1 pin, the other end of resistance R3 and the equal ground connection of the other end of electric capacity C5.
Above-mentioned a kind of myopia prevention desk lamp controller, it is characterized in that: described button arranges circuit and comprises 4 × 4 keyboards and chip 74C922, 8 terminals of described 4 × 4 keyboards respectively with the ColX1 pin of chip 74C922, ColX2 pin, ColX3 pin, ColX4 pin, RowY1 pin, RowY2 pin, RowY3 pin and RowY4 pin connect, the DA pin of described chip 74C922, DOUTA pin, DOUTB pin, DOUTC pin and DOUTD pin respectively with the 12nd pin of P87LPC768 single-chip microcomputer, 20th pin, 19th pin, 17th pin and the 16th pin connect, the VCC pin of described chip 74C922 connects with 5V power output end, the OSC pin of described chip 74C922 is by electric capacity C6 ground connection, the KM pin of described chip 74C922 is by electric capacity C7 ground connection, the OE pin of described chip 74C922 and the equal ground connection of GND pin.
Above-mentioned a kind of myopia prevention desk lamp controller, it is characterized in that: described digital pipe display circuit comprises 2 common anode pole charactrons, triode Q1 and triode Q2, the A pin of described 2 common anode pole charactrons is connected with the 12nd pin of P87LPC768 single-chip microcomputer by resistance R9, the B pin of described 2 common anode pole charactrons is connected with the 11st pin of P87LPC768 single-chip microcomputer by resistance R11, the C pin of described 2 common anode pole charactrons is connected with the 10th pin of P87LPC768 single-chip microcomputer by resistance R12, the D pin of described 2 common anode pole charactrons is connected with the 9th pin of P87LPC768 single-chip microcomputer by resistance R13, the E pin of described 2 common anode pole charactrons is connected with the 8th pin of P87LPC768 single-chip microcomputer by resistance R15, the F pin of described 2 common anode pole charactrons is connected with the 4th pin of P87LPC768 single-chip microcomputer by resistance R16, the G pin of described 2 common anode pole charactrons is connected with the 3rd pin of P87LPC768 single-chip microcomputer by resistance R17, the DP pin of described 2 common anode pole charactrons is connected with the 2nd pin of P87LPC768 single-chip microcomputer by resistance R18,1 pin of described 2 common anode pole charactrons connects with the collector electrode of triode Q1, the base stage of triode Q1 is connected with the 14th pin of P87LPC768 single-chip microcomputer by resistance R7,2 pins of described 2 common anode pole charactrons connect with the collector electrode of triode Q2, the base stage of triode Q2 is connected with the 19th pin of P87LPC768 single-chip microcomputer by resistance R8, the emitter of described triode Q1 and triode Q2 all connects with 5V power output end.
Above-mentioned a kind of myopia prevention desk lamp controller, it is characterized in that: described voice driven circuit comprises chip I SD4004,1st pin of described chip I SD4004, the 2nd pin, the 25th pin and the 28th pin connect with the 6th pin of P87LPC768 single-chip microcomputer, the 13rd pin, the 8th pin and the 7th pin respectively, 4th pin of described chip I SD4004, the 11st pin, the 12nd pin, the 23rd pin and the equal ground connection of the 26th pin, the 18th pin and the 27th pin of described chip I SD4004 all connect with 3.3V power output end;
Described loud speaker is loud speaker LS1, one end of described loud speaker LS1 is connected with the 13rd pin of chip I SD4004 by electric capacity C1, the other end of described loud speaker LS1 exports a point two-way, and a road ground connection, electric capacity C4 of separately leading up to connects with the 14th pin of chip I SD4004.
The utility model compared with prior art has the following advantages:
1, the utility model is by arranging the distance of infrared distance sensor Real-time Collection face to desk lamp, use 4 × 4 keyboards that the distance threshold of face to desk lamp is set, when the lazy self-control of child is poor, bend over or lie prone when doing the homework on desk, when the distance of infrared distance sensor collection is less than the distance threshold of setting, loud speaker reminds user to correct bad habit in time, until sitting posture is correct, digital pipe display circuit can show the range data of collection in real time simultaneously, the person of being easy to use checks oneself, occur that gathering mistake also can investigate fault in time, circuit is simple.
2, the utility model is by arranging the illumination intensity of optical sensor Real-time Collection LED, use 4 × 4 keyboards that actual light is set according to intensity threshold, when the illumination of LED is too dark, the small-signal gathered is sent into micro controller module by optical sensor, micro controller module driving LED regulating circuit increases electric current, LED luminescence is regulated to maintain normal range (NR), when the illumination of LED is too bright, the strong signal gathered is sent into micro controller module by optical sensor, micro controller module driving LED regulating circuit reduces electric current, LED luminescence is regulated to maintain normal range (NR), accuracy in detection is high, good stability.
3, the utility model is rationally novel in design, perfect in shape and function, and volume is little, and transplantability is strong, and fitting operation simple and flexible is practical, is convenient to promote the use of.
In sum, the utility model is rationally novel in design, has the function of infrared survey people and desk lamp distance and automatic adjustable desk lamp illuminance, reminds user's sitting posture in time, pre-myopia prevention, practical, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model micro controller module.
Fig. 3 is the circuit theory diagrams of the utility model LED regulating circuit.
Fig. 4 is the circuit theory diagrams of the utility model infrared distance sensor.
Fig. 5 is the circuit theory diagrams of the utility model optical sensor.
Fig. 6 is the circuit theory diagrams that the utility model button arranges circuit.
Fig. 7 is the circuit theory diagrams of the utility model digital pipe display circuit.
Fig. 8 is the circuit theory diagrams of the utility model voice warning circuit.
Description of reference numerals:
1-infrared distance sensor; 2-optical sensor; 3-button arranges circuit;
4-digital pipe display circuit; 5-micro controller module; 6-voice driven circuit;
7-loud speaker; 8-LED regulating circuit; 9-LED.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, voice warning circuit, lighting circuit and the digital pipe display circuit 4 that the utility model comprises micro controller module 5 and connects with described micro controller module 5 output, the input of described micro controller module 5 is connected to infrared distance sensor 1, optical sensor 2 and button and arranges circuit 3, the loud speaker 7 that described voice warning circuit comprises voice driven circuit 6 and connects with described voice driven circuit 6 output, the LED 9 that described lighting circuit comprises LED regulating circuit 8 and connects with described LED regulating circuit 8 output, described micro controller module 5 is P87LPC768 single-chip microcomputer, described LED regulating circuit 8 comprises chip LM3402, described LED 9 is LED, the VIN pin of described chip LM3402 exports point three tunnels, one tunnel connects with 24V power output end, resistance R10 of separately leading up to connects with the RON pin of chip LM3402, 3rd tunnel connects with one end of electric capacity C9, the other end ground connection of electric capacity C9, the DIM pin of described chip LM3402 connects with the 1st pin of P87LPC768 single-chip microcomputer, the GND pin ground connection of described chip LM3402, the BOOT pin of described chip LM3402 connects with one end of electric capacity C8, the other end of electric capacity C8 exports point three tunnels, one tunnel connects with the SW pin of chip LM3402, another road connects with one end of inductance L 1, 3rd tunnel connects with the negative pole of voltage stabilizing didoe D2, the plus earth of voltage stabilizing didoe D2, the other end of described inductance L 1 exports a point two-way, one tunnel connects with one end of electric capacity C10, another road connects with the positive pole of LED, the other end of electric capacity C10 and the negative pole of LED all connect with the CS pin of chip LM3402, the CS pin of described chip LM3402 also connects with one end of resistance R14, the other end ground connection of resistance R14, the VCC pin of described chip LM3402 connects with one end of electric capacity C11, the other end ground connection of electric capacity C11.
As shown in Figure 4, in the present embodiment, described infrared distance sensor 1 is GP2D12 infrared distance sensor, 1st pin of described GP2D12 infrared distance sensor connects with 5V power output end, 2nd pin of described GP2D12 infrared distance sensor connects with the 18th pin of P87LPC768 single-chip microcomputer, the 3rd pin ground connection of described GP2D12 infrared distance sensor.
As shown in Figure 5, in the present embodiment, described optical sensor 2 comprises chip I SL29004, the SCL pin of described chip I SL29004 exports a point two-way, one tunnel connects with the 10th pin of P87LPC768 single-chip microcomputer, another road connects with one end of resistance R5, the SDA pin of described chip I SL29004 exports a point two-way, one tunnel connects with the 9th pin of P87LPC768 single-chip microcomputer, another road connects with one end of resistance R4, the other end of resistance R5 and the other end of resistance R4 all connect with 3.3V power output end, the REXT pin of described chip I SL29004 connects with one end of resistance R3, the VDD pin of described chip I SL29004 exports a point two-way, one tunnel connects with 3.3V power output end, another road connects with one end of electric capacity C5, the GND pin of described chip I SL29004, A0 pin, A1 pin, the other end of resistance R3 and the equal ground connection of the other end of electric capacity C5.
As shown in Figure 6, in the present embodiment, described button arranges circuit 3 and comprises 4 × 4 keyboards and chip 74C922, 8 terminals of described 4 × 4 keyboards respectively with the ColX1 pin of chip 74C922, ColX2 pin, ColX3 pin, ColX4 pin, RowY1 pin, RowY2 pin, RowY3 pin and RowY4 pin connect, the DA pin of described chip 74C922, DOUTA pin, DOUTB pin, DOUTC pin and DOUTD pin respectively with the 12nd pin of P87LPC768 single-chip microcomputer, 20th pin, 19th pin, 17th pin and the 16th pin connect, the VCC pin of described chip 74C922 connects with 5V power output end, the OSC pin of described chip 74C922 is by electric capacity C6 ground connection, the KM pin of described chip 74C922 is by electric capacity C7 ground connection, the OE pin of described chip 74C922 and the equal ground connection of GND pin.
As shown in Figure 7, in the present embodiment, described digital pipe display circuit 4 comprises 2 common anode pole charactrons, triode Q1 and triode Q2, the A pin of described 2 common anode pole charactrons is connected with the 12nd pin of P87LPC768 single-chip microcomputer by resistance R9, the B pin of described 2 common anode pole charactrons is connected with the 11st pin of P87LPC768 single-chip microcomputer by resistance R11, the C pin of described 2 common anode pole charactrons is connected with the 10th pin of P87LPC768 single-chip microcomputer by resistance R12, the D pin of described 2 common anode pole charactrons is connected with the 9th pin of P87LPC768 single-chip microcomputer by resistance R13, the E pin of described 2 common anode pole charactrons is connected with the 8th pin of P87LPC768 single-chip microcomputer by resistance R15, the F pin of described 2 common anode pole charactrons is connected with the 4th pin of P87LPC768 single-chip microcomputer by resistance R16, the G pin of described 2 common anode pole charactrons is connected with the 3rd pin of P87LPC768 single-chip microcomputer by resistance R17, the DP pin of described 2 common anode pole charactrons is connected with the 2nd pin of P87LPC768 single-chip microcomputer by resistance R18, 1 pin of described 2 common anode pole charactrons connects with the collector electrode of triode Q1, the base stage of triode Q1 is connected with the 14th pin of P87LPC768 single-chip microcomputer by resistance R7, 2 pins of described 2 common anode pole charactrons connect with the collector electrode of triode Q2, the base stage of triode Q2 is connected with the 19th pin of P87LPC768 single-chip microcomputer by resistance R8, the emitter of described triode Q1 and triode Q2 all connects with 5V power output end.
As shown in Figure 8, in the present embodiment, described voice driven circuit 6 comprises chip I SD4004,1st pin of described chip I SD4004, the 2nd pin, the 25th pin and the 28th pin connect with the 6th pin of P87LPC768 single-chip microcomputer, the 13rd pin, the 8th pin and the 7th pin respectively, 4th pin of described chip I SD4004, the 11st pin, the 12nd pin, the 23rd pin and the equal ground connection of the 26th pin, the 18th pin and the 27th pin of described chip I SD4004 all connect with 3.3V power output end;
Described loud speaker 7 is loud speaker LS1, one end of described loud speaker LS1 is connected with the 13rd pin of chip I SD4004 by electric capacity C1, the other end of described loud speaker LS1 exports a point two-way, and a road ground connection, electric capacity C4 of separately leading up to connects with the 14th pin of chip I SD4004.
When the utility model uses, by infrared distance sensor 1 is arranged on table lamp lampshade, the distance of real-time detection face and desk lamp, use button 4 × 4 keyboards arranged in circuit 3 that the distance threshold of face to desk lamp is set in advance, when user is lazy or self-control is poor, frequently bend over or to lie prone on desk reading or write time, when the distance that infrared distance sensor 1 gathers is less than the distance threshold of setting, micro controller module 5 drives voice driven circuit 6 to make loud speaker 7 send voice reminder timely, timely prompting user corrects bad habit, until sitting posture is not correctly just spoken, digital pipe display circuit 4 can show the range data that infrared distance sensor 1 gathers in real time simultaneously, the person of being easy to use checks oneself, occur that gathering mistake also can investigate fault in time, by optical sensor 2 is arranged in table lamp lampshade or on Bulb holder of table lamp, the illumination intensity of Real-time Collection LED 9, use button 4 × 4 keyboards arranged in circuit 3 that actual light is set in advance according to intensity threshold, when the illumination of LED 9 is too dark, the small-signal gathered is sent into micro controller module 5 by optical sensor 2, micro controller module 5 driving LED regulating circuit 8 increases electric current, LED 9 luminescence is regulated to maintain normal range (NR), when the illumination of LED 9 is too bright, the strong signal gathered is sent into micro controller module 5 by optical sensor 2, micro controller module 5 driving LED regulating circuit 8 reduces electric current, LED 9 luminescence is regulated to maintain normal range (NR), dimming process is quiet, leave user alone attentively read a book or write.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection range of technical solutions of the utility model.
Claims (6)
1. a myopia prevention desk lamp controller, it is characterized in that: the voice warning circuit comprising micro controller module (5) and connect with described micro controller module (5) output, lighting circuit and digital pipe display circuit (4), the input of described micro controller module (5) is connected to infrared distance sensor (1), optical sensor (2) and button and arranges circuit (3), the loud speaker (7) that described voice warning circuit comprises voice driven circuit (6) and connects with described voice driven circuit (6) output, the LED (9) that described lighting circuit comprises LED regulating circuit (8) and connects with described LED regulating circuit (8) output, described micro controller module (5) is P87LPC768 single-chip microcomputer, described LED regulating circuit (8) comprises chip LM3402, described LED (9) is LED, the VIN pin of described chip LM3402 exports point three tunnels, one tunnel connects with 24V power output end, resistance R10 of separately leading up to connects with the RON pin of chip LM3402, 3rd tunnel connects with one end of electric capacity C9, the other end ground connection of electric capacity C9, the DIM pin of described chip LM3402 connects with the 1st pin of P87LPC768 single-chip microcomputer, the GND pin ground connection of described chip LM3402, the BOOT pin of described chip LM3402 connects with one end of electric capacity C8, the other end of electric capacity C8 exports point three tunnels, one tunnel connects with the SW pin of chip LM3402, another road connects with one end of inductance L 1, 3rd tunnel connects with the negative pole of voltage stabilizing didoe D2, the plus earth of voltage stabilizing didoe D2, the other end of described inductance L 1 exports a point two-way, one tunnel connects with one end of electric capacity C10, another road connects with the positive pole of LED, the other end of electric capacity C10 and the negative pole of LED all connect with the CS pin of chip LM3402, the CS pin of described chip LM3402 also connects with one end of resistance R14, the other end ground connection of resistance R14, the VCC pin of described chip LM3402 connects with one end of electric capacity C11, the other end ground connection of electric capacity C11.
2. according to a kind of myopia prevention desk lamp controller according to claim 1, it is characterized in that: described infrared distance sensor (1) is GP2D12 infrared distance sensor, 1st pin of described GP2D12 infrared distance sensor connects with 5V power output end, 2nd pin of described GP2D12 infrared distance sensor connects with the 18th pin of P87LPC768 single-chip microcomputer, the 3rd pin ground connection of described GP2D12 infrared distance sensor.
3. according to a kind of myopia prevention desk lamp controller according to claim 1, it is characterized in that: described optical sensor (2) comprises chip I SL29004, the SCL pin of described chip I SL29004 exports a point two-way, one tunnel connects with the 10th pin of P87LPC768 single-chip microcomputer, another road connects with one end of resistance R5, the SDA pin of described chip I SL29004 exports a point two-way, one tunnel connects with the 9th pin of P87LPC768 single-chip microcomputer, another road connects with one end of resistance R4, the other end of resistance R5 and the other end of resistance R4 all connect with 3.3V power output end, the REXT pin of described chip I SL29004 connects with one end of resistance R3, the VDD pin of described chip I SL29004 exports a point two-way, one tunnel connects with 3.3V power output end, another road connects with one end of electric capacity C5, the GND pin of described chip I SL29004, A0 pin, A1 pin, the other end of resistance R3 and the equal ground connection of the other end of electric capacity C5.
4. according to a kind of myopia prevention desk lamp controller according to claim 1, it is characterized in that: described button arranges circuit (3) and comprises 4 × 4 keyboards and chip 74C922, 8 terminals of described 4 × 4 keyboards respectively with the ColX1 pin of chip 74C922, ColX2 pin, ColX3 pin, ColX4 pin, RowY1 pin, RowY2 pin, RowY3 pin and RowY4 pin connect, the DA pin of described chip 74C922, DOUTA pin, DOUTB pin, DOUTC pin and DOUTD pin respectively with the 12nd pin of P87LPC768 single-chip microcomputer, 20th pin, 19th pin, 17th pin and the 16th pin connect, the VCC pin of described chip 74C922 connects with 5V power output end, the OSC pin of described chip 74C922 is by electric capacity C6 ground connection, the KM pin of described chip 74C922 is by electric capacity C7 ground connection, the OE pin of described chip 74C922 and the equal ground connection of GND pin.
5. according to a kind of myopia prevention desk lamp controller according to claim 1, it is characterized in that: described digital pipe display circuit (4) comprises 2 common anode pole charactrons, triode Q1 and triode Q2, the A pin of described 2 common anode pole charactrons is connected with the 12nd pin of P87LPC768 single-chip microcomputer by resistance R9, the B pin of described 2 common anode pole charactrons is connected with the 11st pin of P87LPC768 single-chip microcomputer by resistance R11, the C pin of described 2 common anode pole charactrons is connected with the 10th pin of P87LPC768 single-chip microcomputer by resistance R12, the D pin of described 2 common anode pole charactrons is connected with the 9th pin of P87LPC768 single-chip microcomputer by resistance R13, the E pin of described 2 common anode pole charactrons is connected with the 8th pin of P87LPC768 single-chip microcomputer by resistance R15, the F pin of described 2 common anode pole charactrons is connected with the 4th pin of P87LPC768 single-chip microcomputer by resistance R16, the G pin of described 2 common anode pole charactrons is connected with the 3rd pin of P87LPC768 single-chip microcomputer by resistance R17, the DP pin of described 2 common anode pole charactrons is connected with the 2nd pin of P87LPC768 single-chip microcomputer by resistance R18,1 pin of described 2 common anode pole charactrons connects with the collector electrode of triode Q1, the base stage of triode Q1 is connected with the 14th pin of P87LPC768 single-chip microcomputer by resistance R7,2 pins of described 2 common anode pole charactrons connect with the collector electrode of triode Q2, the base stage of triode Q2 is connected with the 19th pin of P87LPC768 single-chip microcomputer by resistance R8, the emitter of described triode Q1 and triode Q2 all connects with 5V power output end.
6. according to a kind of myopia prevention desk lamp controller according to claim 1, it is characterized in that: described voice driven circuit (6) comprises chip I SD4004,1st pin of described chip I SD4004, the 2nd pin, the 25th pin and the 28th pin connect with the 6th pin of P87LPC768 single-chip microcomputer, the 13rd pin, the 8th pin and the 7th pin respectively, 4th pin of described chip I SD4004, the 11st pin, the 12nd pin, the 23rd pin and the equal ground connection of the 26th pin, the 18th pin and the 27th pin of described chip I SD4004 all connect with 3.3V power output end;
Described loud speaker (7) is loud speaker LS1, one end of described loud speaker LS1 is connected with the 13rd pin of chip I SD4004 by electric capacity C1, the other end of described loud speaker LS1 exports a point two-way, and a road ground connection, electric capacity C4 of separately leading up to connects with the 14th pin of chip I SD4004.
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| CN201520105019.2U CN204392659U (en) | 2015-02-12 | 2015-02-12 | A kind of myopia prevention desk lamp controller |
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| CN201520105019.2U CN204392659U (en) | 2015-02-12 | 2015-02-12 | A kind of myopia prevention desk lamp controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118730A (en) * | 2018-10-11 | 2019-01-01 | 曹景荣 | A kind of method, apparatus, intelligent desk lamp and the storage medium of sitting posture adjustment prompt |
| CN109357223A (en) * | 2018-11-20 | 2019-02-19 | 曹景荣 | A kind of intelligent desk lamp prompting adjustment sitting posture |
| CN110738831A (en) * | 2019-10-30 | 2020-01-31 | 刘宏图 | warning device for preventing myopia |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118730A (en) * | 2018-10-11 | 2019-01-01 | 曹景荣 | A kind of method, apparatus, intelligent desk lamp and the storage medium of sitting posture adjustment prompt |
| CN109357223A (en) * | 2018-11-20 | 2019-02-19 | 曹景荣 | A kind of intelligent desk lamp prompting adjustment sitting posture |
| CN110738831A (en) * | 2019-10-30 | 2020-01-31 | 刘宏图 | warning device for preventing myopia |
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