CN108811255A - A kind of infrared induction night-light and control mode - Google Patents
A kind of infrared induction night-light and control mode Download PDFInfo
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- CN108811255A CN108811255A CN201810821093.2A CN201810821093A CN108811255A CN 108811255 A CN108811255 A CN 108811255A CN 201810821093 A CN201810821093 A CN 201810821093A CN 108811255 A CN108811255 A CN 108811255A
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- 230000006698 induction Effects 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 82
- 230000001186 cumulative effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
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- 230000005611 electricity Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 6
- MTCFGRXMJLQNBG-UHFFFAOYSA-N serine Chemical compound OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 241001522306 Serinus serinus Species 0.000 description 4
- 102100026123 Pirin Human genes 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 102100034458 Hepatitis A virus cellular receptor 2 Human genes 0.000 description 2
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- 101000669640 Homo sapiens Mitochondrial import inner membrane translocase subunit TIM14 Proteins 0.000 description 1
- 102100039325 Mitochondrial import inner membrane translocase subunit TIM14 Human genes 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
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- 230000035484 reaction time Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of infrared induction night-light and control modes, including sequentially connected lighting module, control module and detection module, wherein, the detection module includes power supply circuit, when being internally provided with blind timer detection chip and pyroelectric infrared sensor, detection chip connects infrared sensor and control module, the first power supply pass through power supply circuit connecting detection chip.Detection chip is by configuring port and output port link control module, and for control module to detection chip transmitting configuration parameter, output port sends interrupt signal to control module for detection chip for configuration port；The acquisition port of the detection chip connects pyroelectric infrared sensor.Compared with prior art, the present invention presets the threshold of sensitivity of a suitable indoor environment by detection chip, it is ensured that the high sensitivity and stability of infrared induction night-light, interrupt signal can be generated by ensureing that there are objects moving.
Description
Technical field
The present invention relates to sensing lamp fields, more particularly, to a kind of infrared induction night-light and control mode.
Background technology
Infrared induction night-light be commonly used in night room lighting, such as toilet, corridor, parlor, bedroom needs place,
Can also be used for rather dark place, for example, between storing, wardrobe etc..Infrared night-light generally has simple in structure, at low cost, performance
Stable and extensive application environment advantage relatively, therefore, various ceiling mounting types, portable infrared induction mini light night product are extensive
It is received and is used by people.Infrared induction night-light follows the thinking of " people come i.e. bright, people is gone out from i.e. ", and solving night is not required to
The problem of going to turn on light by lamp switch, particularly with very easy to use for action inconvenient people.
Although infrared induction night-light is largely used by people, from the point of view of the feedback information used from product still
There is some defects.Decide whether to turn on light since infrared induction night-light is the infrared variable quantity of detection, in order to which guarantor is to i.e.
Bright effect needs night-light to have very high sensitivity, and rate of false alarm can be caused very high, the phenomenon that people can be not bright in lamp yet occur.Than
Such as, the indoor ceiling mounting type infrared induction mini light night that crouches is mounted in order to avoid little tricks such as turns, and night-light false triggering is caused to turn on light
The phenomenon that.Existing method is, by the sensitivity decrease of night-light, while the mode for increasing delay and multiple repairing weld filters
Violate-action, but also result in that the reaction time is long, artificially experience bad phenomenon.Meanwhile infrared sensor and general processing
Chip is easily affected by temperature, and the imagination of false triggering is easy to cause at the relatively high temperature of temperature, such as night-light is placed on window
Side this may result in the case where lamp is frequently opened in the case of nobody on daytime.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of infrared induction night-lights
And control mode, the stability of infrared induction night-light is optimized, makes it in the case where keeping very highly sensitive, can still be incited somebody to action
Detect human infrared signal rapid feedback.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of infrared induction night-light, including sequentially connected lighting module, control module and detection module, wherein described
Detection module includes power supply circuit, when being internally provided with blind timer detection chip and pyroelectric infrared sensor, detection chip
Connection infrared sensor and control module, the first power supply pass through power supply circuit connecting detection chip.
Further, the detection chip is used for by configuring port and output port link control module, configuration port
Control module sends interrupt signal to control module to detection chip transmitting configuration parameter, output port for detection chip；Institute
State the acquisition port connection pyroelectric infrared sensor of detection chip.
Further, infrared induction night-light according to claim 2, which is characterized in that the control module includes
Inlet circuit, circuit of output terminal, low pressure regulator circuit and governor circuit, wherein the governor circuit includes control chip, should
The connecting detection chip of chip is controlled, second source passes sequentially through inlet circuit and connects control chip with low pressure regulator circuit；
Circuit of output terminal includes driving chip, and driving chip connection control chip, the lighting module connects driving chip.
Further, the lighting module includes six LED lamp tubes for being parallel to driving circuit both ends.
Further, the detection module is integrated on one piece of round pcb board.
Further, a diameter of 18mm of the pcb board.
Further, the detection chip uses the microcontroller of model E931.96.
A kind of control method of infrared induction night-light described in basis, specifically includes following steps：
A. the detection cycle for presetting detection module is 2 seconds；
B. control module removes interrupt signal and cumulative frequency；
C. it reaches detection cycle to start to detect whether that there are objects moving, if so, executing step d；If it is not, executing step c；
D. detection module sends an interrupt signal to control module；
E. control module removes interrupt signal, and by the number of interrupt signal cumulative 1；
F. timer is closed after starting 1 second when blind, and detection module is stopped during startup, is stood after timer is closed when blind
It detects whether that there are objects moving again, if so, by the number of interrupt signal cumulative 1, executes step g；If it is not, directly executing step
Rapid g；
G. judge whether interrupt signal number is more than or equal to 2, if so, executing step h；If it is not, executing step b；
H. start lighting module.
Further, lighting module start after, continue the movement of detection object, if 30 seconds without object detection to move,
Then extinguish night-light, if there are objects moving, recalculates 30 seconds.
Compared with prior art, the present invention has the following advantages：
1, the present invention presets the threshold of sensitivity of a suitable indoor environment by detection chip, it is ensured that infrared induction
The high sensitivity and stability of night-light, interrupt signal can be generated by ensureing that there are objects moving.
2, for the present invention when detecting object movement for the first time, control module receives the interruption letter that detection module transmitting comes
Number, a signal number is only accumulated at this time, does not light night-light directly；Detection chip in detection module by it is blind when timer
Suspend a period of time detection, calculator is again started up detection after terminating timing when blind, only when detect again object shifting
Dynamic, control module receives second of interrupt signal, just lights night-light；The reason is that in actual living scene, indoors
Environment in interference signal it is often discontinuous, and occur frequency it is relatively low, using the present invention infrared induction night-light,
The probability of false triggering can be utmostly reduced while ensureing night-light reliably working.
3, the present invention is by presetting detection time, and when someone moves in night-light detection range, most fast 3s is left
The right side can light night-light, and the phenomenon that false triggering will not be occurred by being placed in the place such as bedroom, toilet；When someone examines in night-light
When being moved always in survey range, night-light is always maintained at illuminating state；After people leaves detection range, night-light is automatic after being kept for 30 seconds
Extinguish, extraordinary convenience is provided using to people's lives at night.
4, control chip uses the microcontroller of model E931.96, and performance and function are all more stable, internal complexity
Algorithm inhibits extraneous interference signal well, has the advantages that super low-power consumption, meanwhile, it is not easily susceptible to the shadow of environment temperature
It rings, false triggering is also not easily leaded in the relatively high situation of temperature, automatic bright light etc. will not be generated because temperature increases on daytime
Situation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the circuit diagram of lighting module；
The circuit diagram of Fig. 3 modules in order to control；
Fig. 4 is the circuit diagram of detection module；
Fig. 5 is the overall structure diagram of detection module；
Fig. 6 is the operation principle schematic diagram of detection chip；
Fig. 7 is the flow diagram of control method of the present invention.
Description of the drawings：1, detection module, 2, control module, 3, lighting module, 11, detection chip, 12, rpyroelectric infrared passes
Sensor, 13, power supply circuit, 21, inlet circuit, 22, circuit of output terminal, 23, low pressure regulator circuit, 24, governor circuit, 221,
Driving chip, 241, control chip, 242, burning/recording chip.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, a kind of infrared induction night-light is present embodiments provided, including lighting module 3, control module 2 and inspection
Survey 1 three parts of module.Wherein, detection module 1 is the core cell of infrared induction night-light, that is, determines infrared induction night-light
Stability also influences the Product Experience of infrared induction night-light.E931.96 chip of the present embodiment based on elmos constitutes detection mould
Block 1, as shown in Figures 2 and 3.Detection module 1 is integrated on the round pcb board of one piece of a diameter of 18mm, includes power supply on pcb board
Circuit 13, detection chip 11 and pyroelectric infrared sensor 12, detection chip 11 divide connection pyroelectric infrared sensor 12 and control
Molding block 2；First power supply provides power supply by 13 connecting detection chip 11 of power supply circuit；The type of pyroelectric infrared sensor 12
Number be RE200BE-P.
The configuration ports of E931.96 chips, output port and acquisition port correspond to respectively SERIN pins, INT pins and
PIRIN pins.E931.96 chips are by SERIN pins and INT pins link control module 2, and SERIN pins are for controlling mould
Block 2 to E931.96 chip transmitting configuration parameters, E931.96 chips INT pins by the signal detected in a manner of interrupting
It is sent to control module 2；PIRIN pins connect pyroelectric infrared sensor 12.
As shown in figure 4, the operation principle of E931.96 chips is：Timer when blind there are one being set in chip, E931.96 cores
After piece detects movable signal, INT pins provide rising along interrupt signal and detect and keep high level, control module to receive
INT pins are dragged down into the interruption in 100ns removing E931.96 chips after INT pin interrupt signals, timer starts timing when blind
Blind time (Blind time) and movable signal is not detected, blind time timing terminates to start to detect movable signal again.
Entirely the operation principle of detection module is：Pyroelectric infrared sensor 12 sends extraneous infrared signal amount to
E931.96 chips remember primary effective pulse, if when limiting detection when extraneous infrared variable quantity is more than the threshold value of setting
Interior (limiting detection time by Window time registers to be arranged) effective umber of pulse reaches the number of pulses (pulse of setting
Quantity is arranged by Programmable pulse counter registers), E931.96 chips send out interruption letter to control module 2
Number, i.e., INT pins become high level by low level, during control module 2 removes the INT pins drop-down 100ns of E931.96 chips
Break signal, E931.96 chips start the timing blind time (the blind time by it is blind when timer be arranged), i.e., do not locate within the regular hour
The signal for managing infrared radiation source variation starts detection infrared radiation source variable quantity next time again at the end of blind time measurement.
As shown in figure 5, control module includes inlet circuit 21, circuit of output terminal 22, low pressure regulator circuit 23 and master control
Circuit 24.Wherein, governor circuit 24 includes control chip 241, and the control chip 241 is using model STM32F030F4P6's
Microcontroller, the INT pins of the PB1 pins connection E931.96 chips of the control chip 241, PA7 pins connect E931.96 chips
SERIN pins, second source pass sequentially through inlet circuit 21 and low pressure regulator circuit 23 connection control chip 241；Output
Terminal circuit 22 includes driving chip 221, and the PA6 pins of the CTRL pins connection control chip 241 of the driving chip 221 are described
Lighting module 3 connects driving chip 221.Low pressure regulator circuit 23 is using the low-dropout regulator with high output voltage precision
(AP7343), control module can be made to support the input voltage of 3V~5.5V；Driving chip 221 is Buck-type switched-mode LED
Driving chip (AL8807)；The OSC pins of E931.96 chips connect crystal oscillator；The UART RX pins and UART of E931.96 chips
TX pins connect burning/recording chip 242, and burning/recording chip 242 carries out burning by the 2nd pin, the 4th pin, the 6th pin, the 8th pin
The program for controlling chip 241 carries out tuning parameter by the 1st pin, the 3rd pin and the 5th pin.
The control module of infrared induction night-light control section can also there are many selection, such as bluetooth (BLE), ZigBee are logical
Interrogate the general class chip such as class chip or STM8, STM32.The present embodiment using STM32F030F4P6 as master chip R & D design,
Its code is the prior art, can be transplanted.With straightaway explanation, whether night-light needs to light control module in order to control, i.e.,
When control module receives the interrupt signal that detection module provides, current interrupt signal is handled, is judged according to the algorithm of design
Whether need to light night-light.The present embodiment passes through a set of calculation being quick on the draw and inhibit interference effect good of continuous experimental design
Method can be transplanted in the control module of different type chips and use, and main function code is as follows：
MCU in code i.e. chip in order to control, TIM3 and TIM14 are detection timer, and PIR is detection chip.By generation
Code is it is found that by setting and the control to TIM3 timers, it can be achieved that the function of infrared induction night-light late release, as works as lamp
After lighting startup, night-light continues the movement of detection object, if 30 seconds extinguish night-light, if there is object without object detection to movement
Body moves, then recalculates 30 seconds.
As shown in fig. 6, lighting module includes six LED lamp tubes for being connected in parallel on 2 both ends of control module, it is followed successively by from left to right
LED1, LED2, LED3, LED4, LED5, LED6, fluorescent tube are all made of model 67-21S/KK7C-HXXXX34Z15/DT's (GC)
Warm white lamp.
As shown in Figure 7, the control method of the present embodiment includes specifically including following steps：
The detection cycle that step 701. presets detection module by Window time registers is 2 seconds；
Step 702. control module removes interrupt signal and cumulative frequency；
Step 703. reaches detection cycle and starts to detect whether that there are objects moving, if so, executing step 704；If it is not, repeating
Execute step 703；
Step 704. detection module sends an interrupt signal to control module；
Step 705. control module removes interrupt signal, and by the number of interrupt signal cumulative 1；
Timer is closed after starting 1 second when step 706. is blind, and detection module is stopped during startup；
Timer detects whether that there are objects moving again immediately after closing when step 707. is blind, if so, executing step 708；
If it is not, executing step 709；
Step 708. is by the number of interrupt signal cumulative 1；
Step 709. judges whether interrupt signal number is more than or equal to 2, if so, executing step 710；If it is not, executing step
702；
Step 710. starts lighting module.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (9)
1. a kind of infrared induction night-light, which is characterized in that including sequentially connected lighting module, control module and detection module,
Wherein, the detection module include power supply circuit, when being internally provided with blind timer detection chip and pyroelectric infrared sensor,
Detection chip connects infrared sensor and control module, the first power supply pass through power supply circuit connecting detection chip.
2. infrared induction night-light according to claim 1, which is characterized in that the detection chip is by configuring port and defeated
Exit port link control module, configuration port is for control module to detection chip transmitting configuration parameter, and output port is for examining
It surveys chip and sends interrupt signal to control module；The acquisition port of the detection chip connects pyroelectric infrared sensor.
3. infrared induction night-light according to claim 2, which is characterized in that the control module include inlet circuit,
Circuit of output terminal, low pressure regulator circuit and governor circuit, wherein the governor circuit includes control chip, the control chip
Connecting detection chip, second source pass sequentially through inlet circuit and connect control chip with low pressure regulator circuit；Circuit of output terminal
Including driving chip, driving chip connection control chip, the lighting module connects driving chip.
4. infrared induction night-light according to claim 3, which is characterized in that the lighting module includes being parallel to driving electricity
Six LED lamp tubes at road both ends.
5. infrared induction night-light according to claim 1, which is characterized in that the detection module is integrated in one piece of circle
On pcb board.
6. infrared induction night-light according to claim 5, which is characterized in that a diameter of 18mm of the pcb board.
7. infrared induction night-light according to claim 1, which is characterized in that the detection chip uses model
The microcontroller of E931.96.
8. a kind of control method of any infrared induction night-light of basis such as claim 1~7, which is characterized in that specific
Include the following steps：
A. the detection cycle for presetting detection module is 2 seconds；
B. control module removes interrupt signal and cumulative frequency；
C. it reaches detection cycle to start to detect whether that there are objects moving, if so, executing step d；If it is not, executing step c；
D. detection module sends an interrupt signal to control module；
E. control module removes interrupt signal, and by the number of interrupt signal cumulative 1；
F. timer is closed after starting 1 second when blind, and detection module is stopped during startup, after timer is closed when blind immediately again
It is secondary to detect whether that there are objects moving, if so, by the number of interrupt signal cumulative 1, execute step g；If it is not, directly executing step g；
G. judge whether interrupt signal number is more than or equal to 2, if so, executing step h；If it is not, executing step b；
H. start lighting module.
9. according to the control method of infrared induction night-light as claimed in claim 8, which is characterized in that after lighting module starts,
Continue the movement of detection object, if 30 seconds extinguish night-light, if there are objects moving, count again without object detection to movement
It calculates 30 seconds.
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Cited By (2)
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| CN118632420A (en) * | 2024-08-12 | 2024-09-10 | 厦门普为光电科技有限公司 | Lighting device with periodic sensing function self-checking mechanism and method thereof |
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| CN114375085A (en) * | 2022-01-11 | 2022-04-19 | 广州蜜蜂生态科技有限公司 | Control method and device of wardrobe lamp |
| CN118632420A (en) * | 2024-08-12 | 2024-09-10 | 厦门普为光电科技有限公司 | Lighting device with periodic sensing function self-checking mechanism and method thereof |
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