CN203837691U - Incident azimuth detection sensor for sunlight - Google Patents

Abstract

The utility model discloses an incident azimuth detection sensor for sunlight. By using a cylindrical sealed cavity as a sensor in the incident direction of the sunlight, a light hole is formed in an upper panel of the sealed cavity, a fly edge is arranged on the upper panel, and photosensitive detection elements are uniformly distributed in the vertical and horizontal directions of a bottom plate of the sealed cavity by light absorption of the inner wall of the sealed cavity; the sunlight is irradiated to the illuminated faces of the photosensitive elements on the bottom plate of the sealed cavity, the photosensitive elements which receive light illumination output state information, the deviating relationship between the incident direction of the sunlight and a solar battery panel is obtained according to the positions of the photosensitive elements and the state information output to determine movement of a transmission mechanism in horizontal and forward and backward directions so as to adjust the azimuth of the solar battery panel to realize focusing control on the battery panel. The sensor disclosed by the utility model detects light spot positions by using a phototriode to determine the incident direction on the sunlight, so that the solar battery panel can adjust the movement in real time so as to ensure that the solar battery panel is just opposite to sunlight.

Description

A kind of sunshine incident orientation detecting sensor

Technical field

The utility model belongs to photoelectric detecting technology application, is specifically related to a kind of sunshine incident orientation detecting sensor.

Background technology

In order to allow solar panel obtain maximum luminous energy, except adopting MPPT maximum power point tracking MPPT (Maximum Power Point Tracking) control algolithm, also need cell panel to implement photocontrol, long-pending just to sunray with maximum right opposite to ensure solar panel, cell panel can receive maximum sun power.

Implement the active tracking that solar panel mainly contains the Passive Track of real-time detection angle of incidence of sunlight degree and calculates position of sun according to astronomic knowledge the method for photocontrol.The impact that the former is not changed by the error of calculation and solar term, as long as the precision that light detecting sensor detects is enough high, just can meet solar panel to photocontrol.The latter need to carry out complicated mathematical computations, need complicated astronomic knowledge to support, the control accuracy of solar panel is limited by the degree of accuracy of result of calculation, the impact that changed by solar term is larger, no matter weather how, solar panel all, according to the control track operation of himself, as adjusted suitably control, need to be aided with other control device.

Utility model content

Goal of the invention is for the deficiencies in the prior art, and the purpose of this utility model is to provide a kind of sunshine incident orientation detecting sensor, makes it have good sensitivity, detects in real time the features such as solar azimuth, meets user demand.

Technical scheme: in order to realize foregoing invention object, the technical solution adopted in the utility model is:

A kind of sunshine incident orientation detecting sensor, comprises body; Described body is that right cylinder seals light tight structure, is made up of top panel, cylindrical shell and base plate; On described top panel, be provided with light hole, on described top panel edge, arrange and fly edge, sunshine projects after inciding in chamber by this light hole and on base plate, forms luminous point; On described base plate, be furnished with in order multiple photosensitive detection devices; Described photosensitive detection device is connected with testing circuit.

The diameter of described light hole is greater than the outer back gauge of sensitization of diagonal angle two light activated elements, is less than the outer back gauge of two light activated element sensitization that horizontal or vertical direction is separated by simultaneously.

Described photosensitive detection device is phototriode, and each phototriode is arranged in x direction and the y direction of base plate in order; Described testing circuit comprises power supply bus and power ground, between bus and ground wire, be parallel with three branch's series circuits, described branch's series circuit is composed in series by the resistance and the phototriode that are connected to power supply, two series branch's amplifying circuits are composed in series by the resistance and the transistor that are connected to power source bus, the grounded emitter of transistor.The photocurrent that phototriode receives light irradiation formation amplifies and exports the transistor base input end that is connected to follow-up two series branch's amplifying circuits through phototriode, through amplifying circuit amplification, at transistor collector output detections point corresponding state x _i, y _i; Each check point testing circuit is exported the x of identical horizontal ordinate position _iconnected with each other, the y of identical ordinate position _iconnected with each other, export four groups of logical signals in the vertical, horizontal taking center sensor as benchmark, the status information that these four groups of logical signals carry out forming after logical operation is just determined the control requirement that solar panel need to be adjusted.)

Beneficial effect: compared with prior art, sunshine incident orientation detecting sensor of the present utility model, adopting phototriode to realize light spot position detects, determine the incident direction of solar light irradiation solar panel, can be solar panel accurately, reliably obtain just provide positional information accurately to the adjustment movement of sunshine, can meet user demand, there is good practicality.

Brief description of the drawings

Fig. 1 is sensor construction schematic diagram;

Fig. 2 is sensor base structural representation;

Fig. 3 is that sensor base plate photosensitive detection device is arranged schematic diagram;

Fig. 4 is the schematic diagram that is related between spot size and photosensitive detection device;

Fig. 5 is sensor base plate sensitization testing circuit schematic diagram;

Fig. 6 is the luminous point schematic diagram that in the situation of large drift angle, sunshine incident forms;

Fig. 7 is outside incident light direction testing circuit figure;

Fig. 8 is that solar panel is to light control method process flow diagram.

Embodiment

Below in conjunction with concrete accompanying drawing, the utility model is further described.

Sunshine incident orientation detecting sensor, as shown in Figure 1, this sensor body 1 is that a right cylinder seals light tight structure, formed by top panel 2, cylindrical shell 3 and base plate 4, plate 2 centres have the light hole 5 of a diameter 3-5mm in the above, the edge setting of plate 2 in the above flies edge 6, and sunshine can be injected in chamber by this light hole 5.Fig. 2 is base plate 4 views, and light projects on base plate 4 after inciding in chamber by light hole 5, forms a luminous point.The incident direction of sunshine has been reflected in the position of this luminous point, if this sensor is fixedly connected with solar panel, the sunshine incident direction detecting according to sensor, can obtain the mobile demand information of solar panel orientation adjustment.

On base plate 4, be evenly arranged several photosensitive detection devices 7 according to horizontal (x), longitudinal (y), as shown in Figure 3.For realizing the accurate detection of solar cell Board position, the photosensitive detection device that base plate 4 is arranged should be compact, even, ensures that the sunshine inciding in chamber can be irradiated to the photosensitive detection device surface on base plate 4.Illustrate as shown in Figure 4 as for the relation between spot diameter and photosensitive detection device size.In Fig. 4, solid line circle represents the photosensitive detection device of arranging, broken circle represents light spot position and size signal.Obviously, for ensureing in any case, the light hole diameter that when luminous point moves, photosensitive detection device can receive sunshine must be greater than the distance between two light activated element light-sensitive surface edges, diagonal angle, and the upper surface incident bore dia of sensor should be greater than the outer back gauge of sensitization of diagonal angle two light activated elements.Simultaneously, detect degree of accuracy for promoting sensor, spot diameter is not greater than the distance between the two photosensitive detection device cylindricals that level or vertical direction be separated by, and the upper surface incident bore dia of sensor should be less than the outer back gauge of two light activated element sensitization that horizontal or vertical direction is separated by (distances while being a light activated element of midfeather between horizontal or longitudinal two light activated element outward flanges).

On sensor base plate, as shown in Figure 5, the photosensitive detection device of selection is phototriode to the testing circuit of each luminous point.Each luminous point testing circuit comprises power supply bus and power ground, between bus and ground wire, be parallel with three branch's series circuits, detection branches series circuit is composed in series by the resistance and the phototriode that are connected to power supply, two series branch's amplifying circuits are composed in series by the resistance and the transistor that are connected to power source bus, the grounded emitter of transistor.In the time that sunshine incides backplate surface, the phototriode that is arranged in backplate surface receives the irradiation of sunshine, form photocurrent, this photocurrent is as the ideal base drive current of phototriode, amplify through phototriode electric current, its emitter flows out the emitter current (current amplification factor that β is phototriode) of photocurrent β+1 times, after becoming, this emitter current connects transistorized ideal base drive current, after making, connect transistor turns, its collector x, y output level becomes low level by high level, other transistor output state that does not receive the detecting unit of light irradiation is high level.

For realizing the detection and localization of light spot position, this luminous point testing circuit output terminal x is connected with each check point output terminal x of this horizontal ordinate position identical (vertical direction), receive after light irradiation at this point, in all vertical direction that are connected with this point, each check point output terminal x is all dragged down current potential by this point, common output level " 0 " (positive logic).Equally, this luminous point testing circuit output terminal y is connected with each check point output terminal y of this ordinate position identical (along continuous straight runs), receive after light irradiation at this point, in all horizontal directions that are connected with this point, each check point output terminal y is all dragged down current potential by this point, common output level " 0 " (positive logic).Irradiate if only have this check point to receive light, this testing circuit output x=" 0 ", y=" 0 ", observing Fig. 3 has:

$x_i=0,y_i=0,i,j\⋐-n~n---\left(1\right)$

Formula (1) shows, the irradiation that horizontal i is listed as, longitudinal j line position receives light of testing circuit, and all states are in addition high level " 1 ".

If because will ensure that the position of luminous point all can detected circuit be reflected in any case, the diameter of luminous point always arranges greatlyr than the sensitive surface diameter of light activated element, move at luminous point in (incident light moves) process, there will be adjacent two, three or even four adjacent luminous point detecting elements to receive the irradiation of incident light, testing circuit output state is " 0 ", and all the other are " 1 ".That is:

1, horizontal or longitudinal two adjacent luminous point detecting elements receive the irradiation of incident light:

$x_i=x_{i+1}=0,y_i=0,i,j\⋐-n~n---\left(2\right)$

Or:

$x_i=0,y_i=y_{j+1}=0,i,j\⋐-n~n---\left(3\right)$

2, adjacent three, four luminous point detecting elements receive the irradiation of incident light:

$x_i=x_{i+1}=0,y_i=y_{j+1}=0,i,j\⋐-n~n---\left(4\right)$

As seen from Figure 3, sensor base plate diameter is larger, and the detecting element arranging on base plate is more, and it is wider that this detecting device can detect the scope that light moves.But check point is more, the signal condition of detection is also more, and testing circuit is more complicated, and subsequent conditioning circuit cost is higher.And, detect in the process of angle of incidence of light at sensor, because making solar panel follow the tracks of light, the driving of working control tracking means moves, the needed detection luminous point of circuit also just changes near central point, only because light stopped by cloud layer, cloud layer moves rear sunshine moment and just has larger incident angle variation while irradiating.Therefore, the diameter of sensor base plate, the diameter of sensor does not need to arrange too greatly.

Detect for convenience and simplify circuit, detection spot number n≤8 that center sensor point both sides and upper and lower sides arrange, are 8 if number is set, and the set detection luminous point of sensor base plate will have more than 17 row, 17 row, be enough to realize angle of incidence of light and detect.The detecting element of arranging along vertical, horizontal center line, its testing circuit only need to be exported a kind of state, as the detecting element being positioned on transverse axis only need to export lateral attitude state, and the detecting element being positioned on the longitudinal axis only need to be exported lengthwise position state.Now, taking central point as benchmark, central point right side state x ₁x ₂x ₈, central point left side state x _-1x _-2x _-8, central point upside state y ₁y ₂y ₈, central point downside state y _-1y _-2y _-8be 8 tunnel outputs, horizontal direction x ₀place, vertical direction y ₀place does not arrange and controls output, and the state that only arranges completes bulletin, represents that diagonal angle control completes, because x ₀=0, y ₀=0 represents that luminous point is positioned at center sensor position, and photocontrol is completed, and there is no the demand regulating.As x ₀=0, y _i=" 1 ", j ≠ 0, or x _i=" 1 ", y ₀=0, i ≠ 0 represents that respectively luminous point is in crossing the perpendicular line of center sensor point and in crossing on the horizontal line of center sensor point, all having reflection, in the one of four states of the demand of its state adjustment above shown in (1)～(4).

According to n=8, sensor base plate luminous point detecting element is set, by Fig. 3 analysis, its horizontal direction has two groups of output signals, for not: x ₁x ₂x ₈, x _-1x _-2x _-8, state x ₁x ₂x ₈in have while being output as " 0 " and represent that luminous point is positioned at the right side of central point, state x _-1x _-2x _-8in have while being output as " 0 " and represent that luminous point is positioned at the left side of central point.Vertical direction also has two groups of output signals, for not: y ₁y ₂y ₈, y _-1y _-2y _-8, state y ₁y ₂y ₈in have while being output as " 0 " and represent that luminous point is positioned at the upside of central point, state y _-1y _-2y _-8in have while being output as " 0 " and represent that luminous point is positioned at the downside of central point.

Design logic circuit, realizes NAND operation to Ge Zumei road output signal, and establishes status signal X ₊, X _{_}, Y ₊, Y _{_}for:

$\begin{array}{c}{X}_{+}=\stackrel{\‾}{x_1{x}_2{x}_3{x}_4{x}_5{x}_6{x}_7{x}_8}\\ X_{-}=\stackrel{\‾}{x_{-1}{x}_{-2}{x}_{-3}{x}_{-4}{x}_{-5}{x}_{-6}{x}_{-7}{x}_{-8}}\\ Y_{+}=\stackrel{\‾}{y_1{y}_2{y}_3{y}_4{y}_5{y}_6{y}_7{y}_8}\\ Y_{-}=\stackrel{\‾}{y_{-1}{y}_{-2}{y}_{-3}{y}_{-4}{y}_{-5}{y}_{-6}{y}_{-7}{y}_{-8}}\end{array}=---\left(5\right)$

Observation Fig. 3 is visible, X ₊, X _-, Y ₊, Y _-state reflected the demand that solar panel moves, X ₊expression solar panel need to be realized right side dipped beam (moving to solar direction) motion, the X taking central point as benchmark _-expression solar panel need to be realized left side dipped beam motion, the Y taking central point as benchmark ₊expression solar panel need to be realized the motion of upside dipped beam, the Y taking central point as benchmark _-represent that the downside dipped beam that solar panel need to be realized taking central point as benchmark moves, its logical table is as shown in table 1.

Table 1 sensor states and output control logic thereof

What deserves to be explained is X ₊, X _-, Y ₊, Y _-although state can reflect whether solar panel is offset sun incident light direction, can be used as the input control signal that solar panel moves control, but can not reflect the size of solar panel skew sun incident angle of light, be the degree of direction skew, indefinite for the adjustment demand intensity to light Circuit tuning.In other words, although testing circuit has obtained the requirement that solar panel need to be adjusted, do not react the urgency that solar panel need to be adjusted.For this reason, testing circuit also will reflect the just degree to position of cell panel skew, and degrees of offset is larger, and adjustment work is more urgent, and the speed of adjustment also requires faster.

, after anti-phase the detection signal of each group, combine from high to low according to footnote for this reason, form four group of 8 bit, that is: $u_{X+}=\stackrel{\‾}{x_8}\stackrel{\‾}{x_7}\stackrel{\‾}{x_6}\stackrel{\‾}{x_5}\stackrel{\‾}{x_4}\stackrel{\‾}{x_3}\stackrel{\‾}{x_2}\stackrel{\‾}{x_1},u_{X-}=\stackrel{\‾}{x_{-8}}\stackrel{\‾}{x_{-7}}\stackrel{\‾}{x_{-6}}\stackrel{\‾}{x_{-5}}\stackrel{\‾}{x_{-4}}\stackrel{\‾}{x_{-3}}\stackrel{\‾}{x_{-2}}\stackrel{\‾}{x_{-1}}$

$u_{Y+}=\stackrel{\‾}{y_8}\stackrel{\‾}{y_7}\stackrel{\‾}{y_6}\stackrel{\‾}{y_5}\stackrel{\‾}{y_4}\stackrel{\‾}{y_3}\stackrel{\‾}{y_2}\stackrel{\‾}{y_1},u_{Y-}=\stackrel{\‾}{y_{-8}}\stackrel{\‾}{y_{-7}}\stackrel{\‾}{y_{-6}}\stackrel{\‾}{y_{-5}}\stackrel{\‾}{y_{-4}}\stackrel{\‾}{y_{-3}}\stackrel{\‾}{y_{-2}}\stackrel{\‾}{y_{-1}}$

The speed control signal of, elevation angle mobile motor mobile as horizontally rotating using this binary number, the in the situation that of making solar panel larger in drift angle, both direction mobile motor has than speed faster, realize cell panel fast to photocontrol.

If the incident light of the sun is larger, its luminous point has exceeded the edge of sensor base plate, be irradiated on the inwall of sensor, if the inwall of sensor is taked to carry out extinction processing at inner wall surface adhesive surface hacking and the thin sponge of rough black, photosensitive detection device on sensor base plate will not receive light, cannot judge the offset direction of solar panel.If inwall adopts mirror process, in angle of incidence of light skew be not very large in the situation that (luminous point that the extended line of incident ray forms on base plate has exceeded sensor base plate edge), still in corresponding region (first or the fourth quadrant of Fig. 6) of luminous point that light irradiates, as a light of Fig. 6, now testing circuit still can reflect the mobile demand of solar panel.But if the drift angle of light is further strengthened again, incident light will be through being irradiated to second or third quadrant after inwall reflection, as the b light of Fig. 6, sensor will produce wrong judgement, make cell panel to skew in the other direction, thereby it is just long-pending to the right opposite of sunray to reduce cell panel.For addressing this problem, the inwall of sensor is taked extinction processing, in the x of sensor coboundary axle both sides, y axle both sides respectively arrange a light activated element, sensor coboundary arranges the edge that flies of protrusion, when the shaded effect that flies edge ensures that light is irradiated to the inboard second row element in sensor base plate edge, the light activated element at edge starts to receive light and irradiates, when light is irradiated to the inboard first row element of bottom edge, light activated element sensitive surface all receives the irradiation of sunshine, to ensure the accurate control at the larger timer of incident angle.

Because the light detecting element of edge setting is placed in external environment condition, while having dull thread direct projection, on element surface, being all scattered light irradiates, therefore, edge lighting detecting circuit adopts relative light intensity detection method, arrange two pairs of photoresistance cells (y axle is arranged equally) in x axle both sides, every pair of element forms voltage-dividing detection circuit, need the side element detecting to be placed in the upside of voltage-dividing detection circuit, in the time having light to irradiate, bleeder circuit output is moved to supply voltage direction, by testing circuit outputs state detection information.As shown in Figure 7.The figure shows the testing circuit in the time that incident ray is offset to x+ direction, x-, y+, y-direction testing circuit are identical.

At the x axle that flies edge, two photoresistance R are set in the other direction _x+, x direction of principal axis arranges two photoresistance R _x-, y axle arranges two photoresistance R in the other direction _y+, y direction of principal axis arranges two photoresistance R _y-.Detect to the reciprocal wide-angle of x axle for realizing sunshine, testing circuit is set as shown in Figure 7, R _x+one end is connected to power source bus, and the other end is connected to R _x-with voltage stabilizing diode DW negative terminal, R _x-the other end be connected to power supply ground, the anode of voltage stabilizing diode DW and transistor T ₄base stage is connected, this transistor T ₄emitter and power supply be connected, T ₄collector and pull-up resistor R ₄be connected, give pull-up resistor R ₄the other end be connected with power source bus.In the time of sunshine deflection x axle opposite direction, R _x+receive the sun and close irradiation, R _x-flown edge and covered, R _x+and R _x-rise in the some position of series circuit mid point, in the time that this some position rises to certain numerical value, voltage stabilizing diode DW punctures, and sends to driving signal to amplifying circuit, transistor T ₄some position become " 0 " (positive logic), ground, large drift angle deflection x axle has been in the other direction to represent sunshine.Detect to the axial wide-angle of x for realizing sunshine, testing circuit is set also as shown in Figure 7, now, by the R of another group _x+and R _x-position exchange, subsequent conditioning circuit is constant, if this circuit output level "0" represents ground, large drift angle deflection x direction of principal axis of sunshine.Y axle and the reciprocal large drift angle of y axle testing circuit are identical therewith.

When the light activated element of arranging when sensor outward flange receives solar light irradiation, by Fig. 7 circuit output detections state, receive solar light irradiation and be output as " 0 ", otherwise be " 1 ", the most significant digit of this detected state and sensor base plate detected state is carried out and logical operation, make in the situation of large drift angle, the offset direction of most significant digit reflection incident light of its corresponding output, thereby realize cell panel to photocontrol.

In the x of sensor coboundary axle both sides, the set light activated element output state in y axle both sides is x ₊, x _-, y ₊, y _-, respectively corresponding light deflection center sensor axle left side, right side, upside, downside, the position of setting is respectively sensor upper surface x axle negative sense edge, x axle forward edge, y axle negative sense edge, y axle forward edge.(5) formula is revised as:

$\begin{array}{c}{X}_{+}=\stackrel{\‾}{x_1{x}_2{x}_3{x}_4{x}_5{x}_6{x}_7{x}_8{x}_{+}},\\ X_{-}=\stackrel{\‾}{x_{-1}{x}_{-2}{x}_{-3}{x}_{-4}{x}_{-5}{x}_{-6}{x}_{-7}{x}_{-8}{x}_{-}}\\ Y_{+}=\stackrel{\‾}{y_1{y}_2{y}_3{y}_4{y}_5{y}_6{y}_7{y}_8{y}_{+}}\\ Y_{-}=\stackrel{\‾}{y_{-1}{y}_{-2}{y}_{-3}{y}_{-4}{y}_{-5}{y}_{-6}{y}_{-7}{y}_{-8}{y}_{-}}\end{array}=---\left(6\right)$

Speed control signal is revised as:

$\begin{array}{c}{u}_{X+}=(\stackrel{\‾}{x_{+}}+\stackrel{\‾}{x_8})\stackrel{\‾}{x_7}\stackrel{\‾}{x_6}\stackrel{\‾}{x_5}\stackrel{\‾}{x_4}\stackrel{\‾}{x_3}\stackrel{\‾}{x_2}\stackrel{\‾}{x_1}=\stackrel{\‾}{x_{+}{x}_8}\stackrel{\‾}{x_7}\stackrel{\‾}{x_6}\stackrel{\‾}{x_5}\stackrel{\‾}{x_4}\stackrel{\‾}{x_3}\stackrel{\‾}{x_2}\stackrel{\‾}{x_1}\\ u_{X-}=(\stackrel{\‾}{x_{-}}+\stackrel{\‾}{x_{-8}})\stackrel{\‾}{x_{-7}}\stackrel{\‾}{x_{-6}}\stackrel{\‾}{x_{-5}}\stackrel{\‾}{x_{-4}}\stackrel{\‾}{x_{-3}}\stackrel{\‾}{x_{-2}}\stackrel{\‾}{x_{-1}}=\stackrel{\‾}{x_{-}{x}_{-8}}\stackrel{\‾}{x_{-7}}\stackrel{\‾}{x_{-6}}\stackrel{\‾}{x_{-5}}\stackrel{\‾}{x_{-4}}\stackrel{\‾}{x_{-3}}\stackrel{\‾}{x_{-2}}\stackrel{\‾}{x_{-1}}\\ u_{Y+}=(\stackrel{\‾}{y_{+}}+\stackrel{\‾}{y_8})\stackrel{\‾}{y_7}\stackrel{\‾}{y_6}\stackrel{\‾}{y_5}\stackrel{\‾}{y_4}\stackrel{\‾}{y_3}\stackrel{\‾}{y_2}\stackrel{\‾}{y_1}=\stackrel{\‾}{y_{+}{y}_8}\stackrel{\‾}{y_7}\stackrel{\‾}{y_6}\stackrel{\‾}{y_5}\stackrel{\‾}{y_4}\stackrel{\‾}{y_3}\stackrel{\‾}{y_2}\stackrel{\‾}{y_1}\\ u_{Y-}=(\stackrel{\‾}{y_{-}}+\stackrel{\‾}{y_{-8}})\stackrel{\‾}{y_{-7}}\stackrel{\‾}{y_{-6}}\stackrel{\‾}{y_{-5}}\stackrel{\‾}{y_{-4}}\stackrel{\‾}{y_{-3}}\stackrel{\‾}{y_{-2}}\stackrel{\‾}{y_{-1}}=\stackrel{\‾}{y_{-}{y}_{-8}}\stackrel{\‾}{y_{-7}}\stackrel{\‾}{y_{-6}}\stackrel{\‾}{y_{-5}}\stackrel{\‾}{y_{-4}}\stackrel{\‾}{y_{-3}}\stackrel{\‾}{y_{-2}}\stackrel{\‾}{y_{-1}}\end{array}---\left(7\right)$

Angle of incidence of sunlight degree detects real system and realizes in Fig. 8 mode, when system brings into operation, and first detected state X ₊, X _-, Y ₊, Y _-, obtain the directional information that needs operation.According to this information, controller does relevant motion by the motor of horizontal direction, vertical direction, referring to table 1.The speed of associated motor motion is controlled by speed control signal (formula 7), makes sunshine drift angle larger, and the speed of corresponding motor removing is faster, and solar panel contraposition control just completes sooner.Work as X ₊, X _-, Y ₊, Y _-state while being " 0 ", illustrate that solar panel completes photocontrol.

Claims (3)

1. a sunshine incident orientation detecting sensor, is characterized in that: comprise body (1); Described body (1) is light tight structure for right cylinder seals, and is made up of top panel (2), cylindrical shell (3) and base plate (4); On described top panel (2), be provided with light hole (5), on described top panel (2) edge, arrange and fly edge (6), sunshine projects the upper luminous point that forms of base plate (4) after inciding in chamber by this light hole (5); On described base plate (4), be furnished with in order multiple photosensitive detection devices (7); Described photosensitive detection device (7) is connected with testing circuit.

2. sunshine incident orientation detecting sensor according to claim 1, it is characterized in that: the diameter of described light hole (5) is greater than the outer back gauge of sensitization of diagonal angle two light activated elements, be less than the outer back gauge of two light activated element sensitization that horizontal or vertical direction is separated by simultaneously.

3. sunshine incident orientation detecting sensor according to claim 1, is characterized in that: described photosensitive detection device (7) is phototriode, and each phototriode is arranged in x direction and the y direction of base plate (4) in order; Described testing circuit comprises power supply bus and power ground, between bus and ground wire, be parallel with three branch's series circuits, described branch's series circuit is composed in series by the resistance and the phototriode that are connected to power supply, two series branch's amplifying circuits are composed in series by the resistance and the transistor that are connected to power source bus, the grounded emitter of transistor.