CN101739047A - Automatic control system for indoor light intensity - Google Patents
Automatic control system for indoor light intensity Download PDFInfo
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- CN101739047A CN101739047A CN200910198511A CN200910198511A CN101739047A CN 101739047 A CN101739047 A CN 101739047A CN 200910198511 A CN200910198511 A CN 200910198511A CN 200910198511 A CN200910198511 A CN 200910198511A CN 101739047 A CN101739047 A CN 101739047A
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- light intensity
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- indoor light
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Abstract
The invention provides an automatic control system for indoor light intensity. A microcontroller LPC2114 with an ARM7 system structure is used as a core controller; and a light intensity inductor, a human body inductor and a relay are used to perform parallel work. The system realizes automatic control of the light intensity through the control of an ARM processor, so the control of the indoor light intensity can be improved effectively and automatically. The system comprises a light intensity induction circuit, a human body induction circuit, an infrared remote control circuit and a liquid crystal display circuit, wherein each control module is connected with a central controller through an interface circuit. The indoor light intensity can be automatically controlled within a most rational range through data acquisition, data processing and data control; an indoor environment is controlled automatically and most rationally by adjusting the lamp light and a curtain; the liquid crystal display is provided conveniently according to the requirement of a user; the system turns off a lamp automatically in the absence of the user in the room so as to achieve energy-saving and environment protection purposes. The automatic control system for the indoor light intensity plays an important practical role in a place with high light intensity requirement and inconvenience for manual operation.
Description
Technical field
The present invention relates to automation field, particularly based on the indoor light intensity automatic control system of ARM.
Background technology
The light intensity control system is a kind of technology of using always on market, passes through manually control of switch but the overwhelming majority is the people.The appearance of desk lamp with dimmer switch is the demand of performance people change to(for) light intensity, but desk lamp with dimmer switch is just by manually changing the resistance of resistance, reach the light intensity of demand, and automatic control system for indoor light intensity has thoroughly changed the situation that originally can only be changed light intensity by the rheostat manual operation.Indoor light intensity automatic control system based on ARM is ripe relatively.By data acquisition, processing and control, indoor light intensity can be controlled within the reasonable range automatically, adjusting by light and curtain makes indoor environment obtain the most rational automatic control automatically, also can set easily simultaneously, also be equipped with LCD simultaneously according to user's needs.System can close electric light automatically to reach the purpose of energy-conserving and environment-protective under indoor unmanned situation, be for the light intensity requirement height, and inconvenient manually-operated place, automatic control system for indoor light intensity has important Practical significance.
Summary of the invention
The present invention is an automatic control system for indoor light intensity, this control system uses ARM7 architecture microcontroller LPC2114 as core controller, utilize light intensity inductor and human inductor, the relay concurrent working, control by arm processor makes native system reach light intensity and controls automatically, can improve the control of indoor light intensity effectively automatically.
The present invention includes: light intensity sensor circuit, body induction circuit, infrared remote controller, liquid crystal display circuit, EEPROM type flash chip etc., each control module links to each other with central controller by interface circuit.
Central controller is accepted each induction module data and is produced control signal, directly the curtain of light light intensity intensity and stepper motor drive is controlled; The user can make indoor light intensity remain on a desirable state by preestablishing light intensity intensity or coming light intensity in the pulpit at any time by infrared remote control always.
The function of each control module: central processing circuit, the signal of responsible each sensor of collection and treatment; The light intensity sensor circuit is responsible for collecting instant light intensity intensity, and timely and processor communication; Body induction circuit, whether have people, and timely and processor communication if being responsible for collecting surrounding environment; Infrared remote controller be responsible for to receive user's timely control, and by reaching the purpose of real-time control with the processor instant messaging; Display control circuit, by display, the user can see the immediate status of current light intensity at any time, keeps the interaction of best's machine; The EEPROM flash chip can be preserved the data that the user sets by EEPROM, guarantees can not lose after outage, has reduced the trouble of repeatedly setting.
When the present invention worked, the signal that microprocessor will read modules such as light intensity sensor circuit, body induction circuit passed to interface circuit, and interface circuit is resolved control information, produced the control control signal corresponding.Central processing unit carries out the overall treatment operation according to the signal of each module, comprises following three phases: the phase one, by gathering the light intensity intensity of light intensity inductor; Subordinate phase is by the high-low level signal of induction human body induction module.Phase III reaches the purpose of automatic control light intensity by overall treatment, waits and makes total system more perfect by being equipped with infrared remote control, user's setting, LCD.
Beneficial effect of the present invention: in embedded system, use the light intensity automatic control scheme that the present invention proposes, hommization finished Automatic Control for light intensity, effectively human-computer interaction makes that the availability of total system is higher.By test, use the automatic control system for indoor light intensity that the present invention proposes can be effectively and the light intensity in the pulpit automatically accurately, for some are higher to light intensity requirement, and need the place of control automatically that good opertaing device is provided, reached the purpose of indoor light intensity automatic control.
Description of drawings
Further specify the present invention below in conjunction with accompanying drawing and case study on implementation.
Fig. 1 control module structured flowchart of the present invention.
Embodiment
Below by a case study on implementation, further specify the present invention.
Control system uses ARM7 architecture microcontroller LPC2114 as core controller.
For the light intensity inductor, its electrical design is simpler, only needs the equipment that photoresistance and a common 10K resistance constitute a similar potentiometer principle is got final product.In use, the daylighting head can be laid voluntarily according to user's demand and custom.
What human body induction module adopted is GH-718 pyroelectricity human body infrared induction module.This module has following several characteristics: the one, two kinds of output states are arranged, and man-hour level output 3.3V is promptly arranged, level output 0V during nobody; The 2nd, the induction angle is that 110 degree, distance of reaction are 7m; The 3rd, the triggering back output level retention time is adjustable, and in native system, the retention time is adjusted to 8 minutes.
The control of curtain is realized by stepper motor, system is by carrying out the real-time signal collection to 2 pairs 4 tunnel photoresistance in the light intensity inductor, pass through the high-low level acquired signal of human body induction module simultaneously, by the A/D change-over circuit analog quantity of being gathered is converted into digital quantity, and pass through I/O (OUT1-OUT4) and give forward or reverse pulse of motor, control driven by motor curtain pulls to correct direction, proceeding next time then, A/D gathers and control, in certain scope, the position of curtain is in only direction at this moment up to signal difference.
Lamp dimmer utilizes PWM pulse-width signal control solid-state relay that electric light is played bright dark control action exactly.Solid-state relay adopts compositions such as high-power MOS tube, controllable silicon more, have advantages such as use is simple, high life, high-speed transitions, and all can use at DC circuit and alternating circuit, utilize it to control extraneous big potential circuit by the small voltage signal of controller output.
Adopt the present invention, if indoor have the people, if when light intensity is not higher than a certain user's setting value by day, curtain stays open; When the low and not a certain user's setting value of light, electric light keeps closed condition; To evening, curtain is closed, and electric light is opened; To the user in bed system can close electric light automatically; Can control curtain according to the intensity of indoor light intensity automatically cooperates light to reach optimal indoor light intensity simultaneously.
Claims (5)
1. automatic control system for indoor light intensity, it is characterized in that: described system comprises: central processing unit, human inductor, Infrared remote controller, intensity collection device, EEPROM, relay, stepper motor, display; The light intensity intensity of described central processing unit by the intensity collection device, the high-low level signal data acquisition by human inductor, be equipped with that infrared remote control, EEPROM are set, display is handled and control, indoor light intensity can be controlled within the reasonable range automatically.
2. automatic control system for indoor light intensity according to claim 1 is characterized in that: described human inductor adopts GH-718 pyroelectricity human body infrared induction module; Send central processing unit to by the A/D conversion, it reaches an optimal standard according to the intensity of indoor light intensity automatically; Automatically close indoor light in unmanned or be reduced within the ideal range that the user sets indoor.
3. automatic control system for indoor light intensity according to claim 1 is characterized in that: the standard of luminous intensity of described EEPROM storage customer requirements.
4. automatic control system for indoor light intensity according to claim 3 is characterized in that: described customer requirements wherein: if the indoor people of having, if when light intensity is not higher than a certain user's setting value by day, curtain stays open; When the low and not a certain user's setting value of light, electric light keeps closed condition; To evening, curtain is closed, and electric light is opened; To the user in bed system can close electric light automatically; Can control curtain according to the intensity of indoor light intensity automatically cooperates light to reach optimal indoor light intensity simultaneously.
5. automatic control system for indoor light intensity according to claim 1 is characterized in that: described processor is ARM7 architecture microcontroller LPC2114.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198511A CN101739047A (en) | 2009-11-10 | 2009-11-10 | Automatic control system for indoor light intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198511A CN101739047A (en) | 2009-11-10 | 2009-11-10 | Automatic control system for indoor light intensity |
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| Publication Number | Publication Date |
|---|---|
| CN101739047A true CN101739047A (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910198511A Pending CN101739047A (en) | 2009-11-10 | 2009-11-10 | Automatic control system for indoor light intensity |
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| CN (1) | CN101739047A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956088A (en) * | 2012-10-27 | 2013-03-06 | 保定供电公司 | Self-inductive acousto-optic warning sign |
| CN103200370A (en) * | 2013-03-19 | 2013-07-10 | 海信集团有限公司 | Method and system for adjusting screen display of liquid crystal display television |
| CN103558788A (en) * | 2013-11-03 | 2014-02-05 | 国家电网公司 | Automatic control device of curtain |
| CN106618134A (en) * | 2017-02-17 | 2017-05-10 | 安徽大学 | Intelligent curtain |
| CN111246637A (en) * | 2020-01-17 | 2020-06-05 | 长安大学 | Office mixed lighting control method and device |
-
2009
- 2009-11-10 CN CN200910198511A patent/CN101739047A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956088A (en) * | 2012-10-27 | 2013-03-06 | 保定供电公司 | Self-inductive acousto-optic warning sign |
| CN103200370A (en) * | 2013-03-19 | 2013-07-10 | 海信集团有限公司 | Method and system for adjusting screen display of liquid crystal display television |
| CN103200370B (en) * | 2013-03-19 | 2017-08-25 | 海信集团有限公司 | The method and system that adjustable liquid crystal display video screen is shown |
| CN103558788A (en) * | 2013-11-03 | 2014-02-05 | 国家电网公司 | Automatic control device of curtain |
| CN106618134A (en) * | 2017-02-17 | 2017-05-10 | 安徽大学 | Intelligent curtain |
| CN111246637A (en) * | 2020-01-17 | 2020-06-05 | 长安大学 | Office mixed lighting control method and device |
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Open date: 20100616 |