CN2612202Y - Red infrared controller of bedside lamp - Google Patents
Red infrared controller of bedside lamp Download PDFInfo
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- CN2612202Y CN2612202Y CN 02232315 CN02232315U CN2612202Y CN 2612202 Y CN2612202 Y CN 2612202Y CN 02232315 CN02232315 CN 02232315 CN 02232315 U CN02232315 U CN 02232315U CN 2612202 Y CN2612202 Y CN 2612202Y
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Abstract
The utility model relates to a bed head lamp infrared controller which uses people infrared light to remotely control the switch of bed head lamp, with touch sensitive light adjusting function, wherein an insulation casing simulated as robot head comprises a control circuit board composed of a people infrared sensor and an analogue/digit integrated circuit, the controller is mounted at 0.6m from the bed head, the infrared remote-sensitive distance is 8m, the horizontal remote-sensitive angle is 120 degrees while the vertical one is +-4 degrees, the sensitive electrode of the switch is forced to contact the insulation casing at nose, and the light-increase and light-reduce sensitive electrodes are forced to contact left and right faces of the insulation casing inside. When use enters into room, the bed head will be turned on, and when user lays on bed, the bed head lamp is turned off after 5s, and user can turn on the bed head lamp by touching the nose and adjust the brightness in 16 levels by touching the left and right faces, and turn off the lamp by touching the nose again, and when user leaves bed, the bed head lamp is turned on, and leaves room, the lamp is turned off, and when the condition is bright, the utility model has non infrared remote-control function but only the touch control function, while the utility model can be used for alternative-current power at 100-300V.
Description
Affiliated technical field
The human body infrared remote control bedside lamp automatic switch that utilizes that the utility model relates in a kind of human-body infrared sensing device application also has the bedside lamp infrared controller of touch sensible dimming function.
Background technology
At present, aspects such as infrared sensor is applied to report to the police more, public place illumination control, the controllable silicon mechanical dimmer only is applied to desk lamp light modulation and electric fan speed governing.Usually people's WA at midnight is not clear-headed fully, is difficult to touch lighting switch in the dark, rises night and quite feels inconvenience.Do not retrieve the bedside lamp infrared controller by Chinese patent.
Summary of the invention
Play inconvenient situation night at people, the utility model provides and adorns the bedside lamp infrared controller that utilizes human body infrared remote control bedside lamp automatic switch and have touch sensible dimming function circuit board in a kind of imitative robot capitiform insulation crust.Controller is installed in 0.6 meter of the head of a bed, 8 meters of infrared remote sensing distances, and level 120 degree in remote sensing angle vertically are horizontal sextant angle ± 4 degree, and the force switch induction electrode is close in the nose insulation shell, and blast, dim light induction electrode are close in the cheek insulation shell of the left and right sides; It is promptly bright to go into the bedroom bedside lamp night; Lying down then delays time extinguished in 5 seconds, and bed is read tangible nose night and forced and light bedside lamp, regulates 16 grades of brightness of bedside lamp by touching left and right sides cheek; Touching nose when sleeping again forces bedside lamp to extinguish; It is promptly bright to play bedside lamp night; Leaving bedroom bedside lamp time-delay extinguishes; Do not have function of infrared remote control when environment is brighter, touch control function is only arranged.
The technical scheme that its technical problem that solves the utility model adopts is: in imitative robot capitiform insulation crust thermoelectric type human-body infrared sensing device is housed, the circuit board that the analog/digital integrated circuit is formed, it is to utilize thermoelectric type human-body infrared sensing device to receive human body infrared by the Fresnel Lenses at imitative robot capitiform insulation crust glasses position, producing signal voltage amplifies through two-level operating amplifier, make the infrared remote sensing distance reach 8 meters, pass through the fault-tolerant comparison of comparator again, to keeping the electric capacity repid discharge, the decision circuitry of forming by photodiode compares again, photodiode resistance by day is minimum, can not trigger the controllable silicon conducting, controller can not make the head of a bed light; When ambient black, the photodiode resistance increases, and then triggers the controllable silicon conducting, and controller is lighted bedside lamp; After infrared radiation source disappeared, signal sampling kept electric capacity slowly to charge by current-limiting resistance, and charge constant remains on after 5 seconds bedside lamp is extinguished.The force switch at robot capitiform insulation crust nose place is the D flip-flop type, and D flip-flop of every touch then overturns once, and one touches upset for opening, and touches upset again for closing.Switch is a capacitor induction type, and induction electrode is close to the insulation crust inner surface, and the insulation crust outer surface does not have metal electrode, does not have the possibility of getting an electric shock.Switch has only the logic upset, does not have the hardware wearing and tearing.Robot capitiform insulation crust place between the eyebrows place is provided with the red and green color light-emitting diode on the controller, shows the state of bedside lamp switch, opens then to glow, and closes then green light.Be provided with induction type blast, the dim switch of regulating bedside lamp brightness at the cheek place, the left and right sides, both sides of nose force switch, touch 16 grades of brightness that blast or dim switch can be regulated bedside lamp.Touch in order to make the inductive switch position be easy to the identification location, insulation crust is designed to the toy robot nose shape, volume is similar to Wall-type switch, be directly installed on from the head of a bed 0.5～0.8m place, in the human body height is in infrared sensor remote sensing scope, controller control bedside lamp is promptly bright, and when the human body height was lower than or walks out infrared sensor remote sensing scope, controller control bedside lamp extinguished after 5 seconds automatically.
The beneficial effects of the utility model are: when making people go into the bedroom night, it is bright that controller is controlled bedside lamp automatically, and bedside lamp time-delay was extinguished in 5 seconds automatically when lying down, and rises night promptly brightly, leaves the bedroom time-delay and extinguish.Read night for being convenient for people to lie in bed, controller is provided with the induction type force switch, make controller not receive to touch when human body infrared and light bedside lamp at infrared sensor, and tangible induction type blast, dim switch regulate the brightness of bedside lamp, touches force switch when sleeping again bedside lamp is extinguished.Force switch and dimming function are not retrained by ambient brightness.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail:
Fig. 1 is the imitative robot capitiform insulation crust surface structure stereogram of a kind of embodiment of the utility model
Fig. 2 is the imitative robot capitiform insulation crust internal structure stereogram among the utility model embodiment
Fig. 3 is the imitative robot capitiform insulation crust bonnet internal structure stereogram among the utility model embodiment
Fig. 4 is the circuit block diagram among the utility model embodiment
Fig. 5 is the utility model detailed circuit diagram
Fig. 1, Fig. 2, among Fig. 3: 1. (imitative robot capitiform insulation crust) box body, 2. panel, 3. Fresnel Lenses, 4. force switch, 5. dim switch, 6. blast switch, 7. red/green indicator light, 8. ear's screw hole, 9. mouth screw hole, 10. power supply gateway, 11. accessory power outlets, 12. main circuit board positioning seats, the circuit board positioning seat 13. power supply is come in and gone out, 14. red/green indicator light installing hole, 15. Fresnel Lenses gim pegs, 16. Fresnel Lenses are installed window, 17. dim light induction electrode, 18. the force switch induction electrode, 19. blast induction electrodes, 20. accessory power outlet circuit board positioning seats, 21. mouth screw sleeve via hole, 22. the accessory power outlet hole, 23. bonnets, 24. bonnet trip bolt seats, 25. mouth screw bonnet via hole, 26. accessory power outlet hole positioning baffle, 27. bonnet trip bolt seat via holes, 28. power supplys are come in and gone out window are installed.
Among Fig. 4: 29. AC voltage-stabilizing DC power supply, 30. force switch sensor circuit, 31. the switch sampling hold circuit, 32. switching logic decision circuitry, the 33.D type triggers reverse circuit, 34. dual color light emitting indicator light, 35. Schmidt's oscillating circuit, 36. liquid crystal shutter, 37. dim light sensor circuits, 38. blast sensor circuit, 39. the digital brightness holding circuit, 40. infrared sensing circuits, 41. floating operational amplification circuits, 42. anti-phase operational amplification circuit, 43. voltage comparator circuit, 44. signal sampling hold circuits, 45. photosensitive decision circuitry, 46. the phase delay comparison circuit, 47. ghyristor circuits.
Among Fig. 5: 101.220 volts of AC power, 102. bridge rectifier, 103. bedside lamp (incandescent lamp bulb), 104. one-way SCR, 105. switching diode, 106. shift capacitor, 107. shifting resistance, 108. phase comparator, 109. unidirectional conducting diode, 110. full-wave rectification ripple current-limiting resistance, 111. phase place current-limiting resistance, 112. the phase place divider resistance, 113. shift capacitors, 114. voltage stabilizing didoes, 115. filter capacitor, 116. noise filtering electric capacity, 117. three terminal regulators, 118. rectifying and wave-filtering electric capacity, 119. noise filtering electric capacity, 120. shunt capacitance, 121. current-limiting resistances, 122. red light emitting diodes, 123. green LED, 124. current-limiting resistance, 125.D D-flip flop, 126. schmitt inverters, 127. switch keeps electric capacity, 128. current-limiting resistance, 129. bleeder resistances, 130. force switch comparators, 131. diode, 132. diode, 133. electric capacity of voltage regulation, 134. divider resistances, 135. bootstrapping resistance, 136. current-limiting resistance, 137. schmitt inverters, 138. photodiodes, 139. divider resistance, 140. schmitt inverter, 141. current-limiting resistances, 142. diodes, 143. current-limiting resistance, 144. bleeder resistance, 145. signal samplings keep electric capacity, 146. comparators, 147. current-limiting resistance, 148. electric capacity of voltage regulation, 149. divider resistances, 150. current-limiting resistances, 151. signal filtering resistance, 153. feedback resistance, 154. feedback capacities, 155. rp-op amps, 156. current-limiting resistance, 157. electric capacity of voltage regulation, 158. divider resistances, 159. coupling capacitances, 160. feedback capacity, 161. feedback resistance, 162. homophase operational amplifiers, 163. current-limiting resistances, 164. noise filtering electric capacity, 165. feedback keeps electric capacity, 166. noise filtering electric capacity, 167. current-limiting resistances, 168. infrared sensor, 169. power filter resistance, 170. filter capacitors, 171. divider resistances, 172. brightness keeps electric capacity, 173. divider resistance, 174.3 weighting resistors, 175.2 weighting resistors, 176.1 position weighting resistor, 177.0 the position weighting resistor, 178. forward-backward counters, 179. schmitt inverters, 180. schmitt inverter, 181. diode, 182. current-limiting resistances, 183. bleeder resistances, 184. maintenance electric capacity, 185. dim light induction comparator, 186. bootstrapping resistance, 187. current-limiting resistances, 188. diode, 189. bleeder resistance, 190. keep electric capacity, 191. blasts induction comparator, 192. current-limiting resistance, 193. bootstrapping resistance, 194. keep electric capacity, 195. divider resistances, 196. feedback resistance, 197. schmitt inverter, 198. concussion electric capacity, 199. concussion outputs, 200. the voltage emitter follower, the VCC.+5V DC power supply.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the outward appearance of the utility model embodiment is the insulation crust box body (1) of an imitative robot capitiform, a lonely shape is given prominence at the first half glasses place of panel (2), Fresnel Lenses (3) is equipped with on lonely shape surface, be fixed on Fresnel Lenses by Fresnel Lenses gim peg (15) window (16) is installed, on the circuit board after Fresnel Lenses (3) focuses on infrared sensor (168) is housed, circuit board is fixed on main circuit board positioning seat (12) by screw by bonnet trip bolt seat hole (27) and locates, and bonnet (23) and box body (1) is combined into one is installed in 0.6 meter of the head of a bed; Infrared sensor (168) is determined its remote sensing scope by Fresnel Lenses (3): 8 meters of remote sensing distances, level 120 degree in remote sensing angle vertically are horizontal sextant angle ± 4 degree.The middle nose at panel (2) middle part is force switch (4), force switch induction electrode (18) is close to the insulation crust nose back side, the right cheek of force switch (4) is dim switch (5), dim light induction electrode (17) is close to the right cheek of the insulation crust back side, left side cheek is blast switch (6), and blast induction electrode (19) is close to the cheek back side, an insulation crust left side.Insulation crust is plastic products, during with hand soft-touch control position, forms capacitive induction with backplate, and human body is a conductor, is equivalent to ground level, has 8 volts ac induction voltage, and 80 volts ac induction voltage is arranged with respect to this circuit.When outer casing thickness was 1 millimeter, the electric capacity between backplate and the finger was about about 5 pico farads, and electrode can be sensed 200 millivolts alternating voltage, was enough to the trigger switch action.Red/green indicator light (7) in red/green indicator light installing hole (14), shows the on off state of force switch (4) on Fresnel Lenses (3), redness is the force open state, and is green for closing the infrared triggering state of waiting for.Its rear, crown is power supply gateway (10), and civil power (101) is from then on imported, from then on wall type bedside lamp (103) power supply is exported.The below of box body (1) is provided with accessory power outlet (11), and the socket circuit plate is screwed at accessory power outlet circuit board positioning seat (20) and locates, and uses for desk-top bedside lamp (103).The bonnet (23) of box body (1) is provided with power supply discrepancy window (28) is installed, and power supply circuit board is fixed on power supply discrepancy circuit board positioning seat (13) and locates, and makes installation needn't open bonnet (23).When power supply installs, screw is inserted mouth screw hole (9), by mouth screw cylinder base via hole (21) and mouth screw bonnet hole (25), add the screw of left and right sides ear screw hole (8), controller is fastened on the head of a bed wall.Go into night the bedroom or night the time-out bedside lamp light automatically, the bedside lamp time-delay was extinguished after 5 seconds when lying down or leave the bedroom, bed is read night as need, tangible force switch (4) is opened bedside lamp, and can pass through dim switch (5) and 16 grades of brightness of blast switch (6) adjusting, touch force switch (4) when sleeping again and close bedside lamp.
Control circuit board is by AC voltage-stabilizing DC power supply (29), force switch sensor circuit (30), switch sampling hold circuit (31), switching logic decision circuitry (32), the D type triggers reverse circuit (33), dual color light emitting indicator light (34), Schmidt's oscillating circuit (35), liquid crystal shutter (36), dim light sensor circuit (37), blast sensor circuit (38), digital brightness holding circuit (39), infrared sensing circuit (40), floating operational amplification circuit (41), anti-phase operational amplification circuit (42), voltage comparator circuit (43), signal sampling hold circuit (44), photosensitive decision circuitry (45), phase delay comparison circuit (46), ghyristor circuit (47) is formed.
Infrared sensing circuit (40) is human body infrared by the focusing remote sensing of Fresnel Lenses (3), obtain fluctuating signal voltage, floating operational amplification circuit (41) carries out the first order to signal voltage and amplifies, rp-op amp (42) carries out the second level and amplifies, make the infrared remote sensing distance reach 8 meters, voltage comparator circuit (43) compares amplifying signal; Signal sampling hold circuit (44) is sampled to signal and is kept time-delay; Photosensitive decision circuitry (45) judges ambient light, and resistance is 3K Europe to photodiode (138) under the luminous environment having, and schmitt inverter (137) is judged as zero, and ghyristor circuit (47) can not be triggered; When ambient black, photodiode (138) resistance is 10M Europe, and schmitt inverter (137) is judged as 1, and ghyristor circuit (47) just can be triggered.The blast induction electrode (19) of blast sensor circuit (38) is accepted electric capacity (172) discharge of the ac induction voltage of human body to digital luma samples holding circuit (39); The dim light induction electrode (17) of dim light induction comparator (185) is accepted brightness maintenance electric capacity (172) charging of the ac induction voltage of human body to digital luma samples holding circuit (39); The force switch induction electrode (18) of force switch sensor circuit (30) is accepted the ac induction voltage of human body the switch of switch sampling hold circuit (31) is sampled maintenance electric capacity (127) by bleeder resistance (129) repid discharge; Switching logic decision circuitry (32) is carried out logic determines to sampled voltage, switch sampling keeps electric capacity (127) voltage to be reduced to 0.9V when following, schmitt inverter (126) output one rising edge of a pulse makes the D type trigger D flip-flop (125) upset of reverse circuit (33); The negative dichromatic LED (34) of giving respectively of the positive Q of Q of D flip-flop (125) provides logic voltage, the force switch induction electrode (18) of force switch comparator (130) whenever is triggered once, D flip-flop (125) just overturns once, make dual color light emitting indicator light (34) luminous in turn, show that the D type triggers the rollover states of reverse circuit (33), schmitt inverter (137) was output as 1 when the output Q of D flip-flop (125) just had been zero, and controllable silicon (104) is triggered; Q just be 1 o'clock schmitt inverter (137) for nought state, controllable silicon (104) ends.Phase delay comparison circuit (46) keeps electric capacity (172) voltage to compare to the brightness of digital luma samples holding circuit (39); The output of unidirectional conducting diode (109) is the full-wave rectification ripple that phase comparator (108) provides peak value 2.6V, phase comparator (108) is a basic waveform with the full-wave rectification ripple, the output level of digital brightness sampling hold circuit (39) is a comparative level, make the angle of flow of the different phase shift Waveform Control controllable silicon (104) of phase comparator (108) output, with the brightness of decision bedside lamp (103).The time constant of Schmidt's oscillating circuit (35) is 4 hertz, for liquid crystal shutter (36) (not drawing in the circuit) provides the rectangle alternating voltage; Liquid crystal shutter (36) is contained in the silicon window front of infrared sensor (168), and for infrared sensor (168) provides 4 hertz chopping the light pulse, when liquid crystal shutter (36) was transparent, infrared ray can see through, and makes infrared sensor (168) can obtain pulse signal output; When liquid crystal shutter (36) was opaque, infrared ray can not see through, and infrared sensor (168) can not be exported by picked up signal, but thermoelectric type infrared sensor (168) can recover the electric charge of release; When infrared radiation source was not mobile, infrared sensor (168) still can obtain 4 hertz pulse signal output, made schmitt inverter (140) output voltage of signal sampling hold circuit (44) keep low level, bedside lamp (103) is kept do not put out.
AC voltage-stabilizing DC power supply (29) is made up of bridge rectifier (102), unidirectional conducting diode (109), voltage stabilizing didoe (114), filter capacitor (115), noise filtering electric capacity (116), rectifying and wave-filtering electric capacity (118), noise filtering electric capacity (119) and 5 volts of three terminal regulators (117), for entire circuit provides stable+5V DC power supply.
Infrared sensing circuit (40) is made up of power filter resistance (169), filter capacitor (170), current-limiting resistance (167), signal filtering resistance (151), noise filtering electric capacity (166) and infrared sensor (168).Power filter resistance (169), filter capacitor (170) provide more stable stabilized voltage power supply for infrared sensor (168), current-limiting resistance (167) provides certain signal voltage for homophase operational amplifier (162), the high frequency clutter in the further filtered signal voltage of noise filtering electric capacity (166) and signal filtering resistance (151).
Floating operational amplification circuit (41) keeps electric capacity (165) to form by homophase operational amplifier (162), feedback capacity (160), feedback resistance (161), current-limiting resistance (163), feedback.Because homophase operational amplifier (162) itself has the output drift voltage, its drift voltage is generally 2 millivolts, make the negative input end of homophase operational amplifier (162) always high 2 millivolts than positive input terminal, no matter which kind of state positive input terminal voltage keeps, and jumbo feedback keeps the voltage of electric capacity (165) always to be higher than positive input terminal.Homophase operational amplifier (162) output keeps constant voltage, and coupling capacitance (159) pulse free voltage passes through; When infrared sensor (168) when receiving infrared ray, the positive input terminal of homophase operational amplifier (162) obtains pulsating voltage, when winding up of pulsating voltage was higher than negative input end, homophase operational amplifier (162) was coupled to the negative input end of partial rp-op amp (155) by coupling capacitance (159) after producing the homophase amplification.
Anti-phase operational amplification circuit (42) is made up of rp-op amp (155), divider resistance (158), current-limiting resistance (156), electric capacity of voltage regulation (157), feedback resistance (153), feedback capacity (154) and coupling capacitance (159).Divider resistance (158), current-limiting resistance (156), electric capacity of voltage regulation (157) provide the stable benchmark voltage source for the positive input terminal of rp-op amp (155); Feedback resistance (156), feedback capacity (154) feed back to the negative input end of rp-op amp (155) with the output voltage of rp-op amp (155), make it always be kept above 2 millivolts of positive input terminals.The ripple that winds up that amplifies when the homophase of floating operational amplification circuit (41) is during by coupling capacitance (159), and rp-op amp (155) negative input end voltage is higher than positive input terminal, the lower edge ripple of an anti-phase amplification of rp-op amp (155) output.
Voltage comparator circuit (43) is made up of comparator (146), current-limiting resistance (147), divider resistance (149), electric capacity of voltage regulation (148).When no infrared signal, the inverting input voltage of comparator (146) always is higher than 10 millivolts of in-phase input ends, and the output of comparator (146) is in 0 state.
Signal sampling hold circuit (44) keeps electric capacity (145) to be formed by schmitt inverter (140), current-limiting resistance (143), bleeder resistance (144), diode (142) and signal sampling.The output of comparator (146) is when 0 state, and signal sampling keeps electric capacity (145) to be in discharge condition, and schmitt inverter (140) is output as 1.During lower edge ripple of rp-op amp (155) output, the inverting input voltage of comparator (146) is lower than in-phase input end, comparator (146) output 1 state, + 5V DC power supply (VCC) keeps electric capacity (145) quick charge by current-limiting resistance (143), diode (142) to signal sampling, when signal sampling kept the voltage of electric capacity (145) to be higher than the turnover voltage 3.6V of schmitt inverter (140), the output of schmitt inverter (140) was a low level; When no follow-up pulsating voltage, comparator (146) output low level, signal sampling keeps the high voltage on the electric capacity (145) not release by diode (142), but can slowly release by bleeder resistance (144), keep 5 seconds time constant, when the voltage on the signal sampling maintenance electric capacity (145) was lower than the turnover voltage of schmitt inverter (140), schmitt inverter (140) was output as high level.
Photosensitive decision circuitry (45) is made up of photodiode (138), current-limiting resistance (141) and divider resistance (139), diode (131), (132) and schmitt inverter (137).Output is a high level during the no infrared signal of schmitt inverter (140), and output was a low level when infrared signal was arranged; Schmitt inverter (137) be output as 0 o'clock one-way SCR (104) can not be triggered, schmitt inverter (137) be output as 1 o'clock one-way SCR (104) just can be triggered.When infrared signal, schmitt inverter (140) is output as 0, this moment is if ambient brightness is big, photodiode (138) resistance is 3K Europe, the output voltage of photodiode (138), current-limiting resistance (141) and divider resistance (139), the input terminal voltage that makes schmitt inverter (137) can not drop to its turnover voltage below 0.9 volt for the half voltage of+5V DC power supply (VCC), schmitt inverter (137) output still is 0, and one-way SCR (104) can not be triggered; If ambient black, photodiode (138) resistance is 10M Europe, photodiode (138), current-limiting resistance (141) drops to schmitt inverter (137) input turnover voltage below 0.9 volt with the output voltage of divider resistance (139), schmitt inverter (137) is output as 1, one-way SCR (104) is triggered, bedside lamp (103) is lighted, this moment, ambient brightness became big suddenly, photodiode (138) resistance becomes 3K, the output voltage of photodiode (138) and current-limiting resistance (141) and divider resistance (139) rises to+half voltage of 5V DC power supply (VCC), but can not be raised under schmitt inverter (137) input turnover voltage more than 3.6 volts, schmitt inverter (137) still is output as 1, and bedside lamp can not extinguish because ambient brightness increases suddenly.
Force switch sensor circuit (30) is by force switch induction electrode (18), bootstrapping resistance (135), divider resistance (134), current-limiting resistance (136), electric capacity of voltage regulation (133), and force switch comparator (130) is formed.The reference voltage of inductive switch comparator (130) positive input terminal is 80 millivolts, and the bootstrap voltage mode of negative input end is 60 millivolts, and force switch induction electrode (18) is not when responding to alternating voltage, and the output of force switch comparator (130) is a high potential.
Switch sampling hold circuit (31) keeps electric capacity (127) to be formed by current-limiting resistance (128), bleeder resistance (129) and switch; Switching logic decision circuitry (32) is to be served as by schmitt inverter (126); It is to be served as by D flip-flop (125) that the D type triggers reverse circuit (33); Dual color light emitting indicator light (34) is made up of redness, green LED (122), (123) and current-limiting resistance (124).When the output of force switch comparator (130) is high potential, + 5V DC power supply (VCC) keeps slowly charging of electric capacity (127) by current-limiting resistance (128) to switch, make the output of schmitt inverter (126) keep electronegative potential, the pulse input CK end of D flip-flop (125) can not obtain rising edge of a pulse and trigger.When force switch induction electrode (18) is sensed the human finger ac induction voltage, when 260 millivolts of peak values of ac voltages of the negative input end of force switch comparator (130) surpass 80 millivolts of reference voltages of positive input terminal, inductive switch comparator (130) output AC pulse, make switch keep electric capacity (127) at the bottom of its trough by bleeder resistance (129) repid discharge, when discharge voltage is lower than the turnover voltage 0.9V of schmitt inverter (126), the output of schmitt inverter (126) upset suddenly is high level, the pulse of D flip-flop (125) input CK end obtains a rising edge of a pulse, D flip-flop (125) upset that is triggered.Though crest switch in period keeps electric capacity (127) to be recharged, the resistance of current-limiting resistance (128) is bigger, makes charging rate less than the velocity of discharge, and schmitt inverter (126) can not obtain the above turnover voltage of 3.6V, and its output still remains high level.When force switch induction electrode (18) when losing alternating current impression, force switch comparator (130) output recovers high level, switch keeps electric capacity (127) by slowly charging of current-limiting resistance (128) beginning, when charging voltage surpasses the turnover voltage 3.6V of schmitt inverter (126), the upset of schmitt inverter (126) output is low level, and D flip-flop (125) is in waits for the stable state that triggers.
The Q of D flip-flop (125) just, the Q negative output terminal is connected on the green LED (123) of dual color light emitting indicator light (34) and the input of red light emitting diodes (122) respectively, its public output is connected on the current-limiting resistance (124), when D flip-flop (125) is turned to the Q positive output end and is high level, the green LED (123) of dual color light emitting indicator light (34) is luminous, when D flip-flop (125) is triggered upset once more, Q just is being a low level, green LED (123) extinguishes simultaneously, Q negative output high level, the red light emitting diodes (122) of dual color light emitting indicator light (34) is luminous.Every triggering once, D flip-flop (125) overturns once, represents its rollover states by dual color light emitting indicator light (34), red bright for opening state, green is bright to be off status.If the Q negative output of D flip-flop (125) is 1, red light emitting diodes (122) is luminous, Q positive output is 0 o'clock, no matter what attitude schmitt inverter (140) exports, what attitude of ambient brightness, the input of schmitt inverter (137) is 0 by diode (132) reliably, its output is 1 always, controllable silicon (104) is compelled to trigger, and bedside lamp (103) is compelled to light.
Schmidt's oscillating circuit (35) is made up of schmitt inverter (197), feedback resistance (196), concussion electric capacity (198).Rectangular wave pulse from 4 hertz of concussion output (199) outputs, provide the chopping the light alternating voltage for being close to the preceding liquid crystal shutter (36) of infrared sensor (168) silicon window, when liquid crystal shutter (36) alternation printing opacity, the infrared sensor of thermoelectric type (168) can be accepted not mobile human body infrared radiation source in alternation ground, for infrared sensing circuit (40) provides continuous trigger signal.Schmidt's oscillating circuit (35) also provides 4 hertz rectangle alternation benchmark for the reference voltage source that current-limiting resistance (192), divider resistance (195), maintenance electric capacity (194) are formed, and its rectangle crest voltage is 5 volts, and square wave the lowest point voltage is 80 millivolts.
Digital brightness holding circuit (39) keeps electric capacity (172), divider resistance (171), (173), 3 weighting resistors (174), 2 weighting resistors (175), 1 weighting resistor (176), 0 weighting resistor (177) and forward-backward counter (178) to be formed by brightness.3 weighting resistors (174), 2 weighting resistors (175), 1 weighting resistor (176), 0 weighting resistor (177) and forward-backward counter (178) are formed 16 a bit digital/analog converter, provide 16 grades of selectable stepped-up voltages for brightness keeps electric capacity (172).
Dim light sensor circuit (37) is made up of dim light induction electrode (17), bootstrapping resistance (186), current-limiting resistance (192), divider resistance (195), maintenance electric capacity (194), dim light induction comparator (185), current-limiting resistance (182), diode (181), bleeder resistance (183), maintenance electric capacity (184) and schmitt inverter (180).Dim light induction comparator (185) negative input end connects the rectangle alternation reference voltage source of 4 hertz of per seconds, the positive input termination dim light induction electrode (17) of dim light induction comparator (185), when human finger when the dim light induction electrode (17), the positive input terminal bootstrap voltage mode of dim light induction comparator (185) is 60 millivolts, all the time be higher than positive input terminal voltage at the bottom of the trough of the negative input end rectangle alternation reference voltage of dim light induction comparator (185), the output of dim light induction comparator (185) is a low level, keep electric capacity (184) by bleeder resistance (183) discharge, make schmitt inverter (180) be output as 1.When pointing near dim light induction electrode (17), electric capacity between finger and the dim light induction electrode (201) is 5 pico farads, under the human body ac induction voltage about 80 volts, on dim light induction electrode (17), induce 200 millivolts alternating voltage by the electric capacity of 5 pico farads, be added on the bootstrap voltage mode, the positive input terminal that makes dim light respond to comparator (185) has 260 millivolts peak values of ac voltage, when its crest voltage is 80 millivolts of reference voltages above negative input end, the output of dim light induction comparator (185) will produce 50 hertz pulse voltage, this pulse voltage is passed through diode (181) to keeping electric capacity (184) quick charge, when keeping electric capacity (184) to be charged to the turnover voltage 3.6V of schmitt inverter (180), schmitt inverter (180) is output as 0; When rectangle alternation reference voltage becomes 5V, 260 millivolts of peak values of ac voltages of the positive input terminal institute tool of its dim light induction comparator (185) are lower than the reference voltage of 5V, the output of dim light induction comparator (185) is 0, keep electric capacity (184) by bleeder resistance (183) low rates of discharge, schmitt inverter (180) upset is 1, its rising edge triggers forward-backward counter (178) and adds 1, keeps electric capacity (172) to fill the one-level stepped-up voltage to brightness, makes brightness reduce one-level.If finger does not leave dim light induction electrode (17), the decrease of speed of 4 hertz of per seconds is pressed in brightness.
Blast sensor circuit (38) is made up of blast induction electrode (19), current-limiting resistance (192), divider resistance (195), maintenance electric capacity (194), bootstrapping resistance (193), current-limiting resistance (187), diode (188), maintenance electric capacity (190), bleeder resistance (189), blast induction comparator (191) and schmitt inverter (179).Its principle and dim light sensor circuit (37) are basic identical, and only rising edge triggering forward-backward counter (178) subtracts 1, keep electric capacity (172) to fall the one-level stepped-up voltage to brightness, and brightness increases progressively one-level.
Phase delay comparison circuit (46) is made up of voltage emitter follower (200), shunt capacitance (120), current-limiting resistance (121), phase place current-limiting resistance (111), shift capacitor (113), phase place divider resistance (112), phase comparator (108), shifting resistance (107), shift capacitor (106).Ghyristor circuit (47) is made up of switching diode (105) and one-way SCR (104).Bridge rectifier (102) output of AC voltage-stabilizing DC power supply (29) is the full-wave rectification ripple of 2.6V by unidirectional conducting diode (109), phase place current-limiting resistance (111), shift capacitor (113) and phase place divider resistance (112) for the positive input terminal of phase comparator (108) provides peak value.When the output of voltage emitter follower (200) is brightness maintenance capacitance level, it is 0.8～2.5 volt that its stepped-up voltage can be selected excursion, when schmitt inverter (137) when being output as 0, the crest voltage of full-wave rectification ripple is cut is 0.7V, the ladder level of the negative input end of phase comparator (108) is higher than the chopping voltage of positive input terminal, phase comparator (108) output low level, one-way SCR (104) can not be triggered; Schmitt inverter (137) is output as at 1 o'clock, the ladder level of voltage emitter follower (200) output is lower than the full-wave rectification crest value voltage of not copped wave, phase comparator (108) is output as the full-wave rectification ripple of phase shift, by shifting resistance (107), further phase shift of shift capacitor (106), trigger the angle of flow of one-way SCR (104) again by switching diode (105), control the brightness of bedside lamp (103) by the angle of flow of the selected stepped-up voltage decision of digital brightness holding circuit (39).When controller was in by infrared triggering once again or is compelled to turn on light, bedside lamp (103) still kept original selected brightness.
The bedside lamp infrared controller will be achieved as follows function: when daytime or environment were brighter, the bedside lamp infrared controller can not lighted bedside lamp but can touch force switch because of human body infrared generation effect; When environment is dark, the bedside lamp infrared controller could play a role to human body infrared, when the people enters the remote sensing scope of infrared sensor (168), bedside lamp (103) is lighted automatically, when the people walked out the remote sensing scope of infrared sensor (168), bedside lamp (103) extinguished after 5 seconds automatically.When the people lies on a bed, be in outside the vertical 8 degree induction ranges of infrared sensor (168), bedside lamp (103) does not also work, night, the time-out human body entered within the vertical 8 degree induction ranges of infrared sensor (168), bedside lamp (103) is lighted immediately automatically, after lying down, bedside lamp (103) time-delay is extinguished after 5 seconds automatically.When people lie on a bed when reading night, human body is in outside the vertical 8 degree range of receiving of infrared sensor (168), bedside lamp (103) can not be lighted automatically, must touching, the force switch (4) at robot capitiform insulation crust nose place makes it be in open position, bedside lamp (103) is lighted immediately, can regulate the suitable brightness of bedside lamp (103) by touching blast switch (6), dim switch (5).When wanting to turn off the light, the force switch (4) at robot capitiform insulation crust nose place makes it be in the position, pass as long as touch, and bedside lamp (103) extinguishes immediately.Force switch and induction dimming function are not retrained by ambient brightness.
Claims (6)
1, a kind of bedside lamp infrared controller, outward appearance is the insulation crust box body (1) of an imitative robot capitiform, a lonely shape is given prominence at the first half glasses place of panel (2), Fresnel Lenses (3) is equipped with on lonely shape surface, be fixed on Fresnel Lenses by Fresnel Lenses gim peg (15) window (16) is installed, on the circuit board after Fresnel Lenses (3) focuses on infrared sensor (168) is housed, circuit board is fixed on main circuit board positioning seat (12) by screw by bonnet trip bolt seat hole (27) and locates, and bonnet (23) and box body (1) is combined into one is installed in 0.6 meter of the head of a bed; Infrared sensor (168) is determined its remote sensing scope by Fresnel Lenses (3): 8 meters of remote sensing distances, and level 120 degree in remote sensing angle vertically are horizontal sextant angle ± 4 degree; The middle nose at panel (2) middle part is force switch (4), force switch induction electrode (18) is close to the insulation crust nose back side, the right cheek of force switch (4) is dim switch (5), dim light induction electrode (17) is close to the right cheek of the insulation crust back side, left side cheek is blast switch (6), and blast induction electrode (19) is close to an insulation crust left side and tests the cheek back side.Insulation crust is plastic products, during with hand soft-touch control position, forms capacitive induction with backplate, and human body is a conductor, is equivalent to ground level, has 8 volts ac induction voltage, and 80 volts ac induction voltage is arranged with respect to this circuit.When outer casing thickness was 1 millimeter, the electric capacity between backplate and the finger was about about 5 pico farads, and electrode can be sensed 200 millivolts alternating voltage, was enough to the trigger switch action.Red/green indicator light (7) shows the on off state of force switch (4) on Fresnel Lenses (3), redness is the force open state, and is green for closing the infrared triggering state of waiting for.Its rear, crown is power supply gateway (10), and civil power (101) is from then on imported, from then on wall type bedside lamp (103) power supply is exported.The below of box body (1) is provided with accessory power outlet (11), and the socket circuit plate is screwed at accessory power outlet circuit board positioning seat (20) and locates, and uses for desk-top bedside lamp (103).The bonnet (23) of box body (1) is provided with power supply discrepancy window (28) is installed, power supply circuit board is fixed on power supply discrepancy circuit board positioning seat (13) and locates, make installation needn't open bonnet (23), when power supply installs, screw is inserted mouth screw hole (9), by mouth screw cylinder base via hole (21) and mouth screw bonnet hole (25), add the screw of left and right sides ear screw hole (8), controller is fastened on the head of a bed wall.
2, bedside lamp infrared controller according to claim 1 is characterized in that: in the insulation crust box body (1) of imitative robot capitiform AC voltage-stabilizing DC power supply (29) is housed, force switch sensor circuit (30), switch sampling hold circuit (31), switching logic decision circuitry (32), the D type triggers reverse circuit (33), dual color light emitting indicator light (34), Schmidt's oscillating circuit (35), liquid crystal shutter (36), dim light sensor circuit (37), blast sensor circuit (38), digital brightness holding circuit (39), infrared sensing circuit (40), floating operational amplification circuit (41), anti-phase operational amplification circuit (42), voltage comparator circuit (43), signal sampling hold circuit (44), photosensitive decision circuitry (45), phase delay comparison circuit (46), the control circuit board that ghyristor circuit (47) is formed.
3, bedside lamp infrared controller according to claim 1, it is characterized in that: AC voltage-stabilizing DC power supply (29) is made up of bridge rectifier (102), unidirectional conducting diode (109), voltage stabilizing didoe (114), filter capacitor (115), noise filtering electric capacity (116), rectifying and wave-filtering electric capacity (118), noise filtering electric capacity (119) and 5 volts of three terminal regulators (117), for entire circuit provides stable+5V DC power supply (VCC); Infrared sensing circuit (40) is made up of power filter resistance (169), filter capacitor (170), current-limiting resistance (167), noise filtering electric capacity (166), signal filtering resistance (151) and infrared sensor (168).Power filter resistance (169), filter capacitor (170) provide more stable stabilized voltage power supply for infrared sensor (168), current-limiting resistance (167) provides certain signal voltage for homophase operational amplifier (162), the high frequency clutter in signal filtering resistance (151), the further filtered signal voltage of noise filtering electric capacity (166); Floating operational amplification circuit (41) is by homophase operational amplifier (162), feedback capacity (160), feedback resistance (161), current-limiting resistance (163), feedback keeps electric capacity (165) to form, homophase operational amplifier (162) itself has 2 millivolts of output drift voltages, make the negative input end of homophase operational amplifier (162) always high 2 millivolts than positive input terminal, no matter which kind of state positive input terminal voltage keeps, jumbo feedback keeps the voltage of electric capacity (165) always to be higher than positive input terminal, homophase operational amplifier (162) output keeps constant voltage, and coupling capacitance (159) pulse free voltage passes through; When infrared sensor (168) when receiving infrared ray, the positive input terminal of homophase operational amplifier (162) obtains pulsating voltage, when winding up of pulsating voltage was higher than negative input end, the ripple that winds up that homophase operational amplifier (162) output is amplified was coupled to the negative input end of second level rp-op amp (155) by coupling capacitance (159); Anti-phase operational amplification circuit (42) is made up of rp-op amp (155), divider resistance (158), current-limiting resistance (156), electric capacity of voltage regulation (157), feedback resistance (153), feedback capacity (154) and coupling capacitance (159).Divider resistance (158), current-limiting resistance (156), electric capacity of voltage regulation (157) provide the stable benchmark voltage source for the positive input terminal of rp-op amp (155); Feedback resistance (156), feedback capacity (154) feed back to the output voltage of rp-op amp (155) negative input end of rp-op amp (155), its value is higher than 2 millivolts of positive input terminals, when the ripple that winds up of floating operational amplification circuit (41) amplification passes through coupling capacitance (159), rp-op amp (155) negative input end voltage is higher than positive input terminal, lower edge ripple that further amplifies of rp-op amp (155) output; Voltage comparator circuit (43) is made up of comparator (146), current-limiting resistance (147), divider resistance (149), electric capacity of voltage regulation (148).When no infrared signal, the inverting input voltage of comparator (146) always is higher than 10 millivolts of in-phase input ends, and the output of comparator (146) is in 0 state; Signal sampling hold circuit (44) keeps electric capacity (145) to be formed by current-limiting resistance (143), bleeder resistance (144), diode (142), schmitt inverter (140) and signal sampling.The output of comparator (146) is when 0 state, signal sampling keeps electric capacity (145) to be in discharge condition, schmitt inverter (140) is output as 1, during lower edge ripple of rp-op amp (155) output, the inverting input voltage of comparator (146) is lower than in-phase input end, comparator (146) output 1 state, + 5V DC power supply (VCC) is by current-limiting resistance (143), diode (142) keeps electric capacity (145) quick charge to signal sampling, when signal sampling keeps the voltage of electric capacity (145) to be higher than the turnover voltage of schmitt inverter (140), the output of schmitt inverter (140) is a low level, and schmitt inverter (137) may be exported high level.When no follow-up pulsating voltage, comparator (146) output low level, signal sampling keeps the high voltage on the electric capacity (145) not release by diode (142), but can slowly release by bleeder resistance (144), keep 5 seconds time constant, when the voltage on the signal sampling maintenance electric capacity (145) was lower than the turnover voltage of schmitt inverter (140), schmitt inverter (140) was output as high level, and schmitt inverter (137) is output as low level; Photosensitive decision circuitry (45) is by photodiode (138), current-limiting resistance (141) and divider resistance (139), diode (131), (132) and schmitt inverter (137) form, schmitt inverter (140) output is a high level during no infrared signal, schmitt inverter when infrared signal is arranged (140) output is a low level, schmitt inverter (137) is output as at 0 o'clock, one-way SCR (104) can not be triggered, schmitt inverter (137) is output as at 1 o'clock, one-way SCR (104) just can be triggered, when infrared signal, schmitt inverter (140) is output as 0, this moment is if ambient brightness is big, photodiode (138) resistance is 3K Europe, photodiode (138), the output voltage of current-limiting resistance (141) and divider resistance (139) is+half voltage of 5V DC power supply (VCC), the input terminal voltage of schmitt inverter (137) can not drop to its turnover voltage below 0.9 volt, schmitt inverter (137) output still is 0, and one-way SCR (104) can not be triggered; If ambient black, photodiode (138) resistance is 10M Europe, photodiode (138), current-limiting resistance (141) drops to schmitt inverter (137) input turnover voltage below 0.9 volt with the output voltage of divider resistance (139), schmitt inverter (137) is output as 1, one-way SCR (104) is triggered, bedside lamp (103) is lighted, this moment, ambient brightness became big suddenly, photodiode (138) resistance becomes 3K Europe, the output voltage of photodiode (138) and current-limiting resistance (141) and divider resistance (139) rises to+half voltage of 5V DC power supply (VCC), but can not be raised under schmitt inverter (137) input turnover voltage more than 3.6 volts, schmitt inverter (137) still is output as 1, and bedside lamp can not extinguish because ambient brightness increases suddenly.
4, bedside lamp infrared controller according to claim 1, it is characterized in that: force switch sensor circuit (30) is by force switch induction electrode (18), bootstrapping resistance (135), divider resistance (134), current-limiting resistance (136), electric capacity of voltage regulation (133), and force switch comparator (130) is formed, the reference voltage of force switch comparator (130) positive input terminal is 80 millivolts, the bootstrap voltage mode of negative input end is 60 millivolts, its force switch induction electrode (18) is not when responding to alternating voltage, the output of force switch comparator (130) is a high potential, switch sampling hold circuit (31) is by current-limiting resistance (128), bleeder resistance (129) and switch keep electric capacity (127) to form, switching logic decision circuitry (32) is to be served as by schmitt inverter (126), it is to be served as by D flip-flop (125) that the D type triggers reverse circuit (33), dual color light emitting indicator light (34) is by redness, green LED (122), (123) and current-limiting resistance (124) form, when the output of sense force switch comparator (130) is high potential, + 5V DC power supply (VCC) keeps electric capacity (127) charging by current-limiting resistance (128) to switch, make the output of schmitt inverter (126) keep electronegative potential, the pulse input CK end of D flip-flop (125) can not obtain rising edge of a pulse and trigger; When force switch induction electrode (18) is sensed the human finger ac induction voltage, the peak values of ac voltage that the negative input end of force switch comparator (130) is 260 millivolts surpasses 80 millivolts of reference voltages of positive input terminal, force switch comparator (130) output AC pulse, make switch keep electric capacity (127) at the bottom of its trough by bleeder resistance (129) repid discharge, when discharge voltage is lower than the turnover voltage 0.9V of schmitt inverter (126), the output of schmitt inverter (126) upset suddenly is high level, the pulse input CK end of D flip-flop (125) obtains a rising edge of a pulse, D flip-flop (125) upset that is triggered, though crest switch in period keeps electric capacity (127) to be recharged, but the resistance of current-limiting resistance (128) is bigger, make charging rate less than the velocity of discharge, schmitt inverter (126) can not obtain the turnover voltage of 3.6V, and its output still remains high level; When force switch induction electrode (18) when losing alternating current impression, force switch comparator (130) output recovers high level, switch keeps electric capacity (127) by slowly charging of current-limiting resistance (128) beginning, when charging voltage surpasses the turnover voltage 3.6V of schmitt inverter (126), the upset of schmitt inverter (126) output is low level, and D flip-flop (125) is in waits for the stable state that triggers; The Q of D flip-flop (125) just, the Q negative output terminal is connected on the green LED (123) of dual color light emitting indicator light (34) and the input of red light emitting diodes (122) respectively, its public output is connected on the current-limiting resistance (124), when D flip-flop (125) is turned to the Q positive output end and is high level, the green LED (123) of dual color light emitting indicator light (34) is luminous, when D flip-flop (125) is triggered upset once more, Q just is being a low level, green LED (123) extinguishes simultaneously, Q negative output high level, the red light emitting diodes (122) of dual color light emitting indicator light (34) is luminous.Every triggering once, D flip-flop (125) overturns once, represents its rollover states by dual color light emitting indicator light (34), red bright for opening state, green is bright to be off status.If the Q positive output of D flip-flop (125) is 0, the Q negative output is 1, red light emitting diodes (122) is luminous, no matter what attitude schmitt inverter this moment (140) exports, what attitude of ambient brightness, the input of schmitt inverter (137) is 0 reliably by diode (132), it is output as 1, controllable silicon (104) is compelled to trigger, and bedside lamp (103) is compelled to light.
5, bedside lamp infrared controller according to claim 1, it is characterized in that: Schmidt's oscillating circuit (35) is by schmitt inverter (197), feedback resistance (196), concussion electric capacity (198) is formed, rectangular wave pulse from 4 hertz of concussion output (199) outputs, provide the chopping the light alternating voltage for being close to the preceding liquid crystal shutter (36) of infrared sensor (168) silicon window, when liquid crystal shutter (36) alternation printing opacity, the infrared sensor of thermoelectric type (168) can be accepted not mobile human body infrared radiation source in alternation ground, for infrared sensing circuit (40) provides triggering signal.Schmidt's oscillating circuit (35) also provides 4 hertz rectangle alternation benchmark for the reference voltage source that current-limiting resistance (192), divider resistance (195), maintenance electric capacity (194) are formed, and its rectangle crest voltage is 5 volts, and square wave the lowest point voltage is 80 millivolts; Digital brightness holding circuit (39) keeps electric capacity (172), divider resistance (171), (173), 3 weighting resistors (174), 2 weighting resistors (175), 1 weighting resistor (176), 0 weighting resistor (177) and forward-backward counter (178) to be formed by brightness, 3 weighting resistors (174), 2 weighting resistors (175), 1 weighting resistor (176), 0 weighting resistor (177) and forward-backward counter (178) are formed 16 a bit digital/analog converter, provide selectable 16 grades of stepped-up voltages for brightness keeps electric capacity (172); Dim light sensor circuit (37) is by dim light induction electrode (17), bootstrapping resistance (186), current-limiting resistance (192), divider resistance (195), keep electric capacity (194), dim light induction comparator (185), current-limiting resistance (182), diode (181), bleeder resistance (183), keep electric capacity (184) and schmitt inverter (180) to form, dim light induction comparator (185) negative input end connects the rectangle alternation reference voltage source of 4 hertz of per seconds, the positive input termination dim light induction electrode (17) of dim light induction comparator (185), when human finger when the dim light induction electrode (17), 80 millivolts are higher than 60 millivolts of bootstrap voltage modes of positive input terminal all the time at the bottom of the trough of the negative input end rectangle alternation reference voltage of dim light induction comparator (185), the output of dim light induction comparator (185) is a low level, keep electric capacity (184) by bleeder resistance (183) discharge, make schmitt inverter (180) be output as 1; When pointing near dim light induction electrode (17), electric capacity between finger and the dim light induction electrode (17) is 5 pico farads, under 80 volts human body ac induction voltage, on dim light induction electrode (17), induce 200 millivolts alternating voltage by the electric capacity of 5 pico farads, be added on the bootstrap voltage mode, the positive input terminal that makes dim light respond to comparator (185) has 260 millivolts peak values of ac voltage, when its crest voltage is 80 millivolts of reference voltages above negative input end, the output of dim light induction comparator (185) will produce 50 hertz pulse voltage, this pulse voltage is passed through diode (181) to keeping electric capacity (184) quick charge, when keeping electric capacity (184) to be charged to the turnover voltage 3.6V of schmitt inverter (180), schmitt inverter (180) is output as 0; When rectangle alternation reference voltage becomes 5V, 260 millivolts of peak values of ac voltages of the positive input terminal institute tool of its dim light induction comparator (185) are lower than the reference voltage of 5V, the output of dim light induction comparator (185) is 0, keep electric capacity (184) by bleeder resistance (183) discharge, schmitt inverter (180) upset is 1, its rising edge triggers forward-backward counter (178) and adds 1, keeps electric capacity (172) to fill a ladder voltage to brightness, makes brightness reduce one-level.If finger does not leave dim light induction electrode (17), the decrease of speed of 4 hertz of per seconds is pressed in brightness; Blast sensor circuit (38) is made up of blast induction electrode (19), current-limiting resistance (192), divider resistance (195), maintenance electric capacity (194), bootstrapping resistance (193), current-limiting resistance (187), diode (188), maintenance electric capacity (190), bleeder resistance (189), blast induction comparator (191) and schmitt inverter (179), its operation principle and dim light sensor circuit (37) are basic identical, and only brightness increases progressively.
6, bedside lamp infrared controller according to claim 1 is characterized in that: phase delay comparison circuit (46) is made up of voltage emitter follower (200), shunt capacitance (120), current-limiting resistance (121), phase place current-limiting resistance (111), shift capacitor (113), phase place divider resistance (112), phase comparator (108), shifting resistance (107), shift capacitor (106); Ghyristor circuit (47) is made up of switching diode (105) and one-way SCR (104); Bridge rectifier (102) output of AC voltage-stabilizing DC power supply (29) is the full-wave rectification ripple of 2.6V by unidirectional conducting diode (109), phase place current-limiting resistance (111), shift capacitor (113) and phase place divider resistance (112) for the positive input terminal of phase comparator (108) provides peak value; When the output of voltage emitter follower (200) is brightness maintenance capacitance level, its stepped-up voltage excursion is 0.8～2.5 volt, when schmitt inverter (137) when being output as 0, the crest voltage of full-wave rectification ripple is cut is 0.7V, the ladder level of the negative input end of phase comparator (108) is higher than the chopping voltage of positive input terminal, phase comparator (108) output low level, one-way SCR (104) can not be triggered; Schmitt inverter (137) is output as at 1 o'clock, the ladder level of voltage emitter follower (200) output is lower than the full-wave rectification crest value voltage of not copped wave, phase comparator (108) is output as the full-wave rectification ripple of phase shift, by shifting resistance (107), further phase shift of shift capacitor (106), trigger the angle of flow of one-way SCR (104) again by switching diode (105), control the brightness of bedside lamp (103) by the angle of flow of the selected stepped-up voltage decision of digital brightness holding circuit (39), when controller was in by infrared triggering once again or is compelled to turn on light, bedside lamp (103) still kept original selected brightness.
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| CN 02232315 CN2612202Y (en) | 2002-04-16 | 2002-04-16 | Red infrared controller of bedside lamp |
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| CN 02232315 CN2612202Y (en) | 2002-04-16 | 2002-04-16 | Red infrared controller of bedside lamp |
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| CN102438358A (en) * | 2011-09-26 | 2012-05-02 | 胡文松 | Passive infrared constant-temperature induction control dim light/all light module |
| CN102616480A (en) * | 2004-10-12 | 2012-08-01 | 约翰逊父子公司 | Method of operating a dispensing unit |
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| CN102616480B (en) * | 2004-10-12 | 2014-12-10 | 约翰逊父子公司 | Method of operating a dispensing unit |
| CN103748407A (en) * | 2011-08-21 | 2014-04-23 | 业纳聚合物系统有限公司 | LED lamp with lens system comprising fresnel lens and aspherical lenses in honeycomb arrangement |
| CN102438358A (en) * | 2011-09-26 | 2012-05-02 | 胡文松 | Passive infrared constant-temperature induction control dim light/all light module |
| CN103458557A (en) * | 2012-05-31 | 2013-12-18 | 海洋王照明科技股份有限公司 | LED drive control circuit and LED lamp |
| CN103019237A (en) * | 2012-11-13 | 2013-04-03 | 王斌 | Novel intelligent trolley using sensor line patrol |
| CN103852894A (en) * | 2012-11-30 | 2014-06-11 | 鸿富锦精密工业（深圳）有限公司 | Infrared-ray active shutter type spectacles |
| CN105101511A (en) * | 2014-05-14 | 2015-11-25 | 宁波高新区赛尔富电子有限公司 | Sensor switch device and lamp using same |
| CN104848142A (en) * | 2015-04-02 | 2015-08-19 | 蚌埠市惠鸿电子科技有限公司 | Touch table lamp |
| CN106132047A (en) * | 2016-08-16 | 2016-11-16 | 东莞市思帝科安防技术有限公司 | The accurate induction control method of a kind of infrared-sensing type night-light and night-light |
| CN106132047B (en) * | 2016-08-16 | 2019-02-22 | 东莞市思帝科安防技术有限公司 | Precise sensing control method of infrared sensing night light and night light |
| CN107763480A (en) * | 2017-10-11 | 2018-03-06 | 东莞市联洲知识产权运营管理有限公司 | A kind of brightness adjustable student's desk lamp automatically |
| CN111179573A (en) * | 2019-12-31 | 2020-05-19 | 杭州西力智能科技股份有限公司 | Converter for converting visible red light into infrared light |
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