CN101742781A - Illuminance self-induced type lighting electricity saving device - Google Patents

Abstract

The invention relates to the technical field of electricity saving, in particular to an illuminance self-induced type lighting electricity saving device. The device is characterized in that a data acquisition module comprises an illuminance detecting module and an infrared detecting module, an output frequency value is calculated, an actuator module comprises a switch control circuit and a dimming control circuit, electrical isolation between input and output can be realized, an illuminance detecting module circuit U12 comprises a TSL230B, wherein S0 and S1 are sensitivity control terminals S2 and S3 are full-range selecting terminals, an OE terminal and a GND terminal are connected and are connected to ground, a VCC terminal is connected with a power supply, an OUT frequency signal output end is connected with one end of a resistor R16, and the other end of the resistor R16 is connected to ground. Compared with the prior art, the power of the electricity saving device can be adjusted automatically according to the change of the illuminance, thus saving more than 13 percent of electricity compared with a traditional electricity saving device, a CAN bus remote regulation and control technology is configured, thus being able to connect with a computer and GPRS and realizing remote monitoring to the electricity saving device in multiple ways.

Description

A kind of illuminance self-induced type lighting electricity saving device

Technical field

The present invention relates to the power-saving technique field, specifically a kind of illuminance self-induced type lighting electricity saving device.

Background technology

The design of luminance detection modular circuit: illumination is a kind of unit of reflection illuminance intensity, its physical significance is the luminous flux that shines on the unit are, its mathematic(al) representation is E=(Φ/A, Φ is a luminous flux, A is an area), the unit of illumination is every square metre a lumen number (Lm), also cries lux (Lux).Usually, the illumination in room is by two parts decision, natural lighting and artificial lighting.Figure below is the time dependent control curve of illumination, and Es is the illuminance setting value, and according to international standard, the optimal light illumination of office is 400LUX (not being high more good more), and E1 is a natural daylight illumination change curve, and what beat shade is the change curve that artificial light is regulated.When natural daylight is not enough to keep normal illumination, then be aided with artificial lighting.Along with natural daylight dies down gradually, artificial lighting increases gradually to keep the demand of illumination; Otherwise then artificial lighting deepening can suitably be saved the energy of artificial lighting like this.The intelligent lighting controller is responded to indoor light by intelligence sensor, regulates illuminance automatically, reaches only level to keep ambient light illumination, has both created best operational environment, reaches energy-conservation effect again.

Summary of the invention

Order of the present invention ground is the next intelligent power output of regulating lighting electricity saving device of illumination change utilization self adaptation light regulating technology by environment, and realizes remotely intelligently monitoring and modulation based on the CAN bus

For achieving the above object, design a kind of illuminance self-induced type lighting electricity saving device, comprise that the CAN bus interface circuit is connected the input of CAN bus control unit by CAN bus transceiver output, total line traffic control four outputs of CAN connect the microprocessor input, on another input interface of microprocessor, be provided with little processing peripheral circuit, on another input interface of microprocessor, be provided with data acquisition module, on microprocessor output interface end, be provided with executor module, it is characterized in that data acquisition module is made up of luminance detection module and Infrared Detectors module, calculate output frequency value, executor module is made up of ON-OFF control circuit and adjusting control circuit, realize the electrical equipment isolation between input and the output, described luminance detection modular circuit U ₁₂Constitute by the TSL230B module, wherein S ₀S ₁Be sensitivity control end, S ₂S ₃Be the full scale selecting side, the OE end is connected ground connection with the GND end, is connected to power supply on the VCC end, is connected to resistance R on the OUT frequency signal output ₁₆One end, resistance R ₁₆Other end ground connection; Described ON-OFF control circuit module triode Q ₂Emission ground connection is connected to resistance R on the base stage ₂₆, connecting resistance R on the collector electrode ₂₅One end, resistance R ₂₅Another termination power is between collector and emitter and meet the gate-controlled switch K of a diode mouth 6 and ac solid relay ₁, gate-controlled switch K ₁A termination bulb is arranged, the other end of bulb connects the input of adjusting control circuit, gate-controlled switch K ₁The other end connects 220 volts of power supplys of alternating current.

Luminance detection module output frequency value S ₀End is level, S ₁End is low level, and output frequency is former frequency output, S ₂And S ₃End is low level, and output frequency is inversion frequency output, and is the most stable when TSL230B full scale output frequency is 1/4 range, input, output level and Transistor-Transistor Logic level compatibility, and OUT frequency signal output enters and calculates output frequency value after microprocessor program is handled.

The luminance detection module realizes that the inversion frequency error of high-resolution illuminance/frequency inverted device is ± 5%, and wavelength photoreceptor is 300-700nm, 5-70 ℃ of serviceability temperature scope.

Frequency shown in the luminance detection module is to the energy relationship curve, and in different distances, shown light intensity becomes the slope linear change.

The illumination computing formula of luminance detection module is as follows:

${\stackrel{\‾}{E}}_o=\frac{1}{36}({\mathrm{\ΣE}}_t+4\mathrm{\Σ}{E}_m+16E_g)$

$\stackrel{\‾}{E}=\frac{1}{36\mathrm{mn}}({\mathrm{\ΣE}}_i+2{\mathrm{\ΣE}}_j+{4\mathrm{\ΣE}}_k+{4\mathrm{\ΣE}}_{\mathrm{jm}}+8{\mathrm{\ΣE}}_{\mathrm{km}}+{16\mathrm{\ΣE}}_8)$

The operation principle of ON-OFF control circuit is that controlling object is a lamp, and CON is a control end, link to each other with the P3.5 mouth of processor A T89C52, and when CON is " 1 ", triode Q ₁Conducting, output low level, relay is in blocking state, lamp Ds ₁Do not work.When CON is " 0 ", triode Q ₁End, be output as high level, relay is in conducting state, lamp Ds ₁, light.

The present invention compared with prior art, can be according to the variation of illumination, regulate the power of electricity-saving appliance automatically, can more piece than traditional electricity-saving appliance economize the electric weight more than 13%, disposed CAN bus remote control and regulation technology, can be well and computer, GPRS be connected, thereby realization is to the remote monitoring of the multiple mode of electricity-saving appliance.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a luminance detection module circuit diagram of the present invention.

Fig. 2 is output frequency one energy relationship figure of the present invention.

Fig. 3 is a design of Controller circuit diagram of the present invention.

Fig. 4 is CAN bus remotely intelligently monitoring figure of the present invention.

Appointment Fig. 1 is a Figure of abstract

Embodiment

We the new electricity-saving appliance YS01-B that releases has disposed intelligence sensor TSL230B, and this transducer adopts advanced LinCMOS technology, and the light intensity of energy measurement surrounding environment mainly is made of polycrystalline photodiode and the integrated transducer of single chip CMOS power frequency.(the inversion frequency error of device is ± 5% to adopt this device not need outward element can finish high-resolution illuminance/frequency inverted.Its wavelength photoreceptor is 300-700nm, 5-70 ℃ of serviceability temperature scope), can convert the light of certain spectrum to electric current, convert corresponding pulse frequency to by electric current/frequency converter again.Output square wave or triangle wave frequency are fully by the decision of illumination amplitude, and the resolution height does not almost have peripheral the connection when linking to each other with microprocessor.Referring to Fig. 1, Fig. 2, S0, S1 are the sensitivity control end, and changing sensitivity in fact is exactly the photosensitive area that changes the diode top; S2, S3 are the full scale selecting side.In order to select SO (P1.7) in the convenience of calculation design is high level, and S1 (P1.4) is a low level, and output frequency is exported with former frequency like this, and selecting S2 (P1.6) and S3 (P1.5) all is low level, and output frequency is inversion frequency output.The most stable when TSL230B full scale output frequency is 1/4 range, input, output level and Transistor-Transistor Logic level compatibility.OUT is the frequency signal output, enter the input of catching of single-chip microcomputer, select rising edge to catch effectively in the program, by calculating the numerical difference between of twice capture time inside counting device, just can calculate output frequency value, thereby contrast according to the one energy relationship curve chart of the frequency shown in the figure. obtain light intensity (unit: μ W/cm ²).

Illumination is calculated: select some calculation levels earlier in the zonule, the configuration of calculation level is undertaken by the weighted average mode.Concerning general foursquare sub-district, by 9 methods of required precision.Layout, the weight of formula, calculation level are as follows

${\stackrel{\‾}{E}}_o=\frac{1}{36}({\mathrm{\ΣE}}_t+{4\mathrm{\ΣE}}_m+{16E}_g)$

In the formula,

---the average illumination in the sub-district

E _i---the illumination of inter-cardinal point

E _m---the illumination of central point

E _g---the illumination of focus point

The layout of sub-district measuring point and weight

If whole room working face is divided into mxn sub-district, the layout of indoor measuring point is as above schemed

$\stackrel{\‾}{E}=\frac{1}{36\mathrm{mn}}({\mathrm{\ΣE}}_i+{2\mathrm{\ΣE}}_j+{4\mathrm{\ΣE}}_k+{4\mathrm{\ΣE}}_{\mathrm{jm}}+{8\mathrm{\ΣE}}_{\mathrm{km}}+{16\mathrm{\ΣE}}_8)$

---the average illumination in whole zone, lux; E _i---the illumination of inter-cardinal point, lux; E _j---the illumination of edge point, lux; E _k---the illumination of interior point, lux; E _g---the illumination of focus point, lux; E _Jm---the illumination of limit central point, lux; E _Km---the illumination of interior central point, lux.

When carrying out indoor illumination intensity calculating, working face is divided into mxn sub-district according to the pointwise computational methods of average illumination, employing is carried out an illumination based on the illumination computational methods of the logical transfer function of light to each inter-cardinal point, edge point, interior point, focus point, central point etc. and is calculated, based on it, adopt the pointwise computational methods of average illumination to average illumination calculating then.

Referring to Fig. 3, ON-OFF control circuit design module: selected for use ac solid relay JGC-4F as gate-controlled switch, ac solid relay (SSR) is a kind of contactless electronic beam switch, four end active devices, wherein two terminals are the input control end, other two terminals are controlled end, and for realizing the electrical isolation between input and the output, device has adopted high voltage bearing special photoelectric misfortune to close device.After applying input signal, its output loop presents conducting state, presents blocking state during no signal.Because the contactless switch element that solid-state relay is made up of solid-state element, so it has reliable operation than electromagnetic relay, the life-span is long, disturb to external world little, can with the logical circuit compatibility, antijamming capability is strong, series of advantages such as switching speed is fast, and is easy to use have very wide application.JGC-4F adopts the surface mount processing technology, internal set heat radiation fin, and volume is little, can bear high surge current impacts, carry out switch motion at voltage over zero, effectively suppress the surge current of generation, increased the reliability of control module, having reduced influences the design of Controller circuit as shown in Figure 3 to whole module, controlling object is a lamp, and CON is a control end, links to each other with the P3.5 mouth of processor A T89C52, when CON is " 1 ", triode Q ₁Conducting, output low level, relay is in blocking state, lamp Ds ₁Do not work.When CON is " 0 ", triode Q ₁End, be output as high level, relay is in conducting state, lamp Ds ₁, light.

The hardware designs of the controller core part of system mainly comprises the data acquisition module circuit design, executor module circuit design and the design of CAN bus interface circuit.Whole hardware system principle framework is American ATMEL production low-voltage as shown in Figure 4, high-performance low-power-consumption, 8 single chip computer AT 89C52 that adopt the manufacturing of COMS technology are as kernel control chip, AT89C52 includes the read-only program memory of Flash erase/write repeatedly of 8k bytes and the Random Access Data memory (RAM) of 256bytes, device adopts the high density of atmel corp, nonvolatile storage technologies is produced, with standard MCS-51 single-chip microcomputer command system and 8052 product pin compatibilities, 8 central processing units of sheet built-in general-purpose (CPU) and FLASH memory cell, the highest support clock frequency of powerful AT89C52 single-chip microcomputer 24MHz can cooperate CAN bus flank speed 1Mbp on the speed.

Claims (6)

1. illuminance self-induced type lighting electricity saving device, comprise that the CAN bus interface circuit is connected the input of CAN bus control unit by CAN bus transceiver output, total line traffic control four outputs of CAN connect the microprocessor input, on another input interface of microprocessor, be provided with little processing peripheral circuit, on another input interface of microprocessor, be provided with data acquisition module, on microprocessor output interface end, be provided with executor module, it is characterized in that data acquisition module is made up of luminance detection module and Infrared Detectors module, calculate output frequency value, executor module is made up of ON-OFF control circuit and adjusting control circuit, realize the electrical equipment isolation between input and the output, described luminance detection modular circuit U ₁₂Constitute by the TSL230B module, wherein S ₀S ₁Be sensitivity control end, S ₂S ₃Be the full scale selecting side, the OE end is connected ground connection with the GND end, is connected to power supply on the VCC end, is connected to resistance R on the OUT frequency signal output ₁₆One end, resistance R ₁₆Other end ground connection; Described ON-OFF control circuit module triode Q ₂Emission ground connection is connected to resistance R on the base stage ₂₆, connecting resistance R on the collector electrode ₂₅One end, resistance R ₂₅Another termination power is between collector and emitter and meet the gate-controlled switch K of a diode mouth 6 and ac solid relay ₁, gate-controlled switch K ₁A termination bulb is arranged, the other end of bulb connects the input of adjusting control circuit, gate-controlled switch K ₁The other end connects 220 volts of power supplys of alternating current.

2. a kind of illuminance self-induced type lighting electricity saving device according to claim 1 is characterized in that luminance detection module output frequency value S ₀End is level, S ₁End is low level, and output frequency is former frequency output, S ₂And S ₃End is low level, and output frequency is inversion frequency output, and is the most stable when TSL230B full scale output frequency is 1/4 range, input, output level and Transistor-Transistor Logic level compatibility, and OUT frequency signal output enters and calculates output frequency value after microprocessor program is handled.

3. a kind of illuminance self-induced type lighting electricity saving device according to claim 1, it is characterized in that the luminance detection module realizes that the inversion frequency error of high-resolution illuminance/frequency inverted device is ± 5%, wavelength photoreceptor is 300-700nm, 5-70 ℃ of serviceability temperature scope.

4. a kind of illuminance self-induced type lighting electricity saving device according to claim 1 is characterized in that the frequency shown in the luminance detection module to the energy relationship curve, and in different distances, shown light intensity becomes the slope linear change.

5. a kind of illuminance self-induced type lighting electricity saving device according to claim 1 is characterized in that the illumination computing formula of luminance detection module is as follows:

6. a kind of illuminance self-induced type lighting electricity saving device according to claim 1, the operation principle that it is characterized in that ON-OFF control circuit is that controlling object is a lamp, and CON is a control end, links to each other with the P3.5 mouth of processor A T89C52, when CON is " 1 ", triode Q ₁Conducting, output low level, relay is in blocking state, lamp Ds ₁Do not work.When CON is " 0 ", triode Q ₁End, be output as high level, relay is in conducting state, lamp Ds ₁, light.

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