CN204630660U - A kind of portable real-time embedded intensity of illumination proving installation - Google Patents
A kind of portable real-time embedded intensity of illumination proving installation Download PDFInfo
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Abstract
The utility model relates to a kind of portable real-time embedded intensity of illumination proving installation, built-in field time true.The utility model comprises power switch button, photoelectric sensor, built-in power mounting casing, plastic casing, LED LCDs, internal circuit; Internal circuit comprises photoelectric sensor circuit, amplifier circuit, A/D analog to digital converter, internal battery, one-chip computer module, liquid crystal display circuit; Described internal battery is connected with photoelectric sensor circuit, amplifier circuit, A/D analog to digital converter, one-chip computer module, liquid crystal display circuit respectively; Photoelectric sensor circuit is connected with amplifier circuit, and A/D analog to digital converter is connected with one-chip computer module with amplifier circuit respectively, and liquid crystal display circuit is connected on one-chip computer module.The utility model structure is simple, simple to operate, with low cost, people can be helped to understand light intensity at one's side and make other evaluation of light level, being adapted to the real-time lighting strength test of various fields.
Description
Technical field
The utility model relates to a kind of portable real-time embedded intensity of illumination proving installation, belongs to real-time and embedded technique field.
Background technology
In order to show the degree that object is illuminated, people have introduced the physical quantity of illumination, illumination is a kind of unit of reflection intensity of illumination, its physical significance is the luminous flux be irradiated in unit area, the unit of illumination is lumen (Lm) number of every square metre, is also called lux (Lux): 1Lux=1Lm/m2.In above formula, Lm is the unit of luminous flux, its definition be pure platinum when temperature of fusion (about 1770 DEG C), the light quantity of its surface area of 1/60 square metre institute's radiation in the solid angle of 1 sterad.Generalized case: summer is 100000LUX under sunlight; Cloudy day outdoor is 10000Lux; Indoor daylight lamp is 100Lux; Distance 60W desk lamp 60cm desktop is 300Lux; TV station studio is 1000Lux; Dusk, indoor were 10Lux; Night, street lamp was 0.1Lux; Candle light (20cm at a distance) 10 ~ 15Lux.
Shi Ge large agricultural country of China, and affect crop growth quality main factor be exactly sunlight, and this general neither one is quantitative, be unfavorable for the scientific research in crops, if can carry out determining quantitative analysis to different crops, in Polyhouse technology, light source then better can be utilized to carry out quantitative irradiation, what allow crops grow is better.
Nowadays light pollution problem is day by day serious, causes threat to the productive life of the mankind, generally in the world light pollution is divided into 3 classes, i.e. white bright pollution, artificial daytime and colour light pollution.Expert studies discovery, the people working and live under the bright contaminated environment of white for a long time, and eyesight sharply declines, and easily brings out cataract, also makes people's giddy vexed, even has a sleepless night, and appetite declines, depressed, the similar neurasthenic symptoms such as health is weak.Light pollution damages the cornea of human eye and iris, causes visual fatigue and visual impairment.China's high school student's rate of myopia reaches the main cause of more than 60%, and not with caused by eye custom, but visual environment is polluted.Therefore in industry, medical science, agriculture and household field needs are a kind of can be helped people to understand light intensity at one's side and make other evaluation of light level.
Summary of the invention
The technical problems to be solved in the utility model is: the utility model provides a kind of portable real-time embedded intensity of illumination proving installation, solve in industry, agricultural, in medical science and household, light intensity is needed to the problem measured, it can be helped people to understand light intensity at one's side and make other evaluation of light level, for providing actual favourable data in above-mentioned field.
Technical solutions of the utility model are: a kind of portable real-time embedded intensity of illumination proving installation, comprises power switch button 1, photoelectric sensor 2, built-in power mounting casing 3, plastic casing 4, LED LCDs 5, internal circuit; Internal circuit comprises photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, internal battery 9, one-chip computer module 10, liquid crystal display circuit 11; Described internal battery 9 is connected with photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, one-chip computer module 10, liquid crystal display circuit 11 respectively; Photoelectric sensor circuit 6 is connected with amplifier circuit 7, and A/D analog to digital converter 8 is connected with one-chip computer module 10 with amplifier circuit 7 respectively, and liquid crystal display circuit 11 is connected on one-chip computer module 10; Power switch button 1, photoelectric sensor 2, LED LCDs 5 are arranged on outside plastic casing 4, and internal circuit is all built in plastic casing 4; The power switch button 1 of the outside of plastic casing 4 is connected with the internal battery 9 of inside and photoelectric sensor circuit 6 respectively, photoelectric sensor circuit 6, the LED LCDs 5 that photoelectric sensor 2 connects upper plastic casing 4 inside is connected with the liquid crystal display circuit 11 of plastic casing 4 inside.
Described photoelectric sensor circuit 6 comprises internal battery 9, resistance R1, power switch button 1, photoelectric sensor 2; The anode of described internal battery 9 is connected with a pin of resistance R1, another pin of resistance R1 is connected with one end of power switch button 1, the other end of power switch button 1 is connected with the anode of photoelectric sensor 2, the negative electrode of photoelectric sensor 2 is connected with the negative electrode of internal battery 9, at the anode extraction voltage VCC of photoelectric sensor 2, at the negative electrode extraction voltage VDD of photoelectric sensor 2.
Described amplifier circuit 7 comprises resistance R2, R3, R4, R5, R6, R7, R8 that definite value is 100k Ω, and definite value is electric capacity C1, C2, C3, C4, C5 of 100nF, and three operational amplifiers U1, U2, U3; The IN+ pin of described operational amplifier U1 connects the V+ of photoelectric sensor circuit 6, one end of the IN-pin contact resistance R2 of operational amplifier U1, the other end of resistance R2 is connected to the OUT end of operational amplifier U1,4 pin of operational amplifier U1 and one end of electric capacity C1 are parallel to VCC, electric capacity C1 other end ground connection, 8 pin of operational amplifier U1 are connected to 8 pin of operational amplifier U2; The IN+ of operational amplifier U2 is connected to the V-of photoelectric sensor circuit 6, one end of the IN-contact resistance R8 of operational amplifier U2, the other end of resistance R8 is connected to the OUT end of operational amplifier U2, the IN-end of the two ends difference concatenation operation amplifier U1 and operational amplifier U2 of resistance R3,4 pin of operational amplifier U2 connect the VCC of photoelectric sensor circuit 6 and one end of electric capacity C5 respectively, the other end ground connection of C5,8 pin of operational amplifier U2 connect the VDD of photoelectric sensor circuit 6 and one end of electric capacity C3, the other end ground connection of C3 respectively; The OUT of described operational amplifier U1 holds one end of contact resistance R4, the other end IN-end of concatenation operation amplifier U3 and one end of resistance R5 respectively of resistance R4, and the other end of R5 is connected to the OUT end of amplifier U3; The OUT of described operational amplifier U2 holds one end of contact resistance R6, and the resistance R6 other end is the IN+ end of concatenation operation amplifier U3 and one end of resistance R7 respectively, the other end ground connection of resistance R7; 4 pin of described operational amplifier U3 connect the VCC of photoelectric sensor circuit 6 and one end C4 of electric capacity respectively, the other end ground connection of the other end C4 of electric capacity, 8 pin of operational amplifier U3 connect the other end ground connection of the VDD of photoelectric sensor circuit 6 and one end C2 of electric capacity, electric capacity C2 respectively; The OUT end of described operational amplifier U3 is connected to A/D analog to digital converter 8.
Described liquid crystal display circuit 11 comprises one-chip computer module 10, electric capacity C6, LED LCDs that model is the LED display drive chip of MAX7219, resistance R9, capacitance are 0.1 μ F; P1.0, P1.1 of described one-chip computer module 10 connect serial data input DIN and the clock signal clk of MAX7219 respectively, and P1.2 is as LOAD signal; Described model is the VCC of the V+ termination photoelectric sensor circuit 6 of the LED display drive chip of MAX7219, the IEST of the LED display drive chip of MAX7219 holds one end of contact resistance R9, the other end of resistance R9 is connected to the VCC of photoelectric sensor circuit 6, the VCC of the one termination photoelectric sensor circuit 6 of electric capacity C6, other end ground connection; Described model is seven-segment driver line and the decimal dotted line that SEGA ~ SEGG and the DP of the LED display drive chip of MAX7219 is connected LED LCDs respectively, supply display source electric current; BIG0 ~ BIG7 connects LED LCDs 8 bit digital drive wire respectively, carry-out bit selects signal, and suck electric current from every LED common cathode, resistance R9 is according to different LED LCDs choosing values, scope is between 7K Ω ~ 60K Ω, and described one-chip computer module 10 can adopt 89C2051.
Principle of work of the present utility model is: when this device will be used to measure, and is first opened by built-in power shell 3, and both positive and negative polarity puts into 4 joint No. 5 batteries formation internal batteries 9 on request, and built-in power shell 3 fixes with nut.By photoelectric sensor 2 alignment light source, press power switch button 1 and power to whole device.After pressing power switch button 1, under illumination condition, photoelectric sensor 2 is according to its volt-ampere characteristic, the conducting of whole photoelectric sensor circuit 6 produces corresponding electric current, therefore resistance R1 two ends produce voltage V+, V-, V+ and V-is through the sampling of amplifier circuit 7 and deliver to A/D analog to digital converter 8 after amplifying, and by A/D analog to digital converter 8, simulating signal V+ and V-is converted to corresponding voltage digital signal V.Voltage digital signal V after A/D analog to digital converter 8 is changed delivers to one-chip computer module 10, one-chip computer module 10 is through the voltage digital signal V of process after A/D analog to digital converter 8 is changed, this one-chip computer module changing voltage digital signal V converts corresponding intensity of illumination numerical value to and belongs to automatic field conventional control technology, pass through P1.0, P1.1, P1.2 passes to DIN, CLL, LOAD of LED display drive chip MAX7219 respectively, and LED display drive chip MAX7219 shows the illumination electric strength numerical value surveyed by drives LED LCDs.
After test completes, only need by power source shift knob 1, whole device quits work.
The beneficial effects of the utility model are: the utility model structure is simple, simple to operate, with low cost, light intensity at one's side can be understood for helping people and make other evaluation of light level, for providing actual favourable data in above-mentioned field, be adapted to the real-time lighting strength test of various fields.
Accompanying drawing explanation
Fig. 1 is mechanism of the present utility model block diagram;
Fig. 2 is external view of the present utility model;
Fig. 3 is photoelectric sensor circuit schematic diagram of the present utility model;
Fig. 4 is amplifier circuit theory diagrams of the present utility model;
Fig. 5 is liquid crystal display circuit schematic diagram of the present utility model.
Each table number in figure: 1-power switch button, 2-photoelectric sensor, 3-built-in power mounting casing, 4-plastic casing, 5-LED LCDs, 6-photoelectric sensor circuit, 7-amplifier circuit, 8-A/D analog to digital converter, 9-internal battery, 10-one-chip computer module, 11-liquid crystal display circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as Figure 1-5, a kind of portable real-time embedded intensity of illumination proving installation, comprises power switch button 1, photoelectric sensor 2, built-in power mounting casing 3, plastic casing 4, LED LCDs 5, internal circuit; Internal circuit comprises photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, internal battery 9, one-chip computer module 10, liquid crystal display circuit 11; Described internal battery 9 is connected with photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, one-chip computer module 10, liquid crystal display circuit 11 respectively; Photoelectric sensor circuit 6 is connected with amplifier circuit 7, and A/D analog to digital converter 8 is connected with one-chip computer module 10 with amplifier circuit 7 respectively, and liquid crystal display circuit 11 is connected on one-chip computer module 10; Power switch button 1, photoelectric sensor 2, LED LCDs 5 are arranged on outside plastic casing 4, and internal circuit is all built in plastic casing 4; The power switch button 1 of the outside of plastic casing 4 is connected with the internal battery 9 of inside and photoelectric sensor circuit 6 respectively, photoelectric sensor circuit 6, the LED LCDs 5 that photoelectric sensor 2 connects upper plastic casing 4 inside is connected with the liquid crystal display circuit 11 of plastic casing 4 inside.
Embodiment 2: as Figure 1-5, a kind of portable real-time embedded intensity of illumination proving installation, comprises power switch button 1, photoelectric sensor 2, built-in power mounting casing 3, plastic casing 4, LED LCDs 5, internal circuit; Internal circuit comprises photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, internal battery 9, one-chip computer module 10, liquid crystal display circuit 11; Described internal battery 9 is connected with photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, one-chip computer module 10, liquid crystal display circuit 11 respectively; Photoelectric sensor circuit 6 is connected with amplifier circuit 7, and A/D analog to digital converter 8 is connected with one-chip computer module 10 with amplifier circuit 7 respectively, and liquid crystal display circuit 11 is connected on one-chip computer module 10; Power switch button 1, photoelectric sensor 2, LED LCDs 5 are arranged on outside plastic casing 4, and internal circuit is all built in plastic casing 4; The power switch button 1 of the outside of plastic casing 4 is connected with the internal battery 9 of inside and photoelectric sensor circuit 6 respectively, photoelectric sensor circuit 6, the LED LCDs 5 that photoelectric sensor 2 connects upper plastic casing 4 inside is connected with the liquid crystal display circuit 11 of plastic casing 4 inside.
Described photoelectric sensor circuit 6 comprises internal battery 9, resistance R1, power switch button 1, photoelectric sensor 2; The anode of described internal battery 9 is connected with a pin of resistance R1, another pin of resistance R1 is connected with one end of power switch button 1, the other end of power switch button 1 is connected with the anode of photoelectric sensor 2, the negative electrode of photoelectric sensor 2 is connected with the negative electrode of internal battery 9, at the anode extraction voltage VCC of photoelectric sensor 2, at the negative electrode extraction voltage VDD of photoelectric sensor 2.
Embodiment 3: as Figure 1-5, a kind of portable real-time embedded intensity of illumination proving installation, comprises power switch button 1, photoelectric sensor 2, built-in power mounting casing 3, plastic casing 4, LED LCDs 5, internal circuit; Internal circuit comprises photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, internal battery 9, one-chip computer module 10, liquid crystal display circuit 11; Described internal battery 9 is connected with photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, one-chip computer module 10, liquid crystal display circuit 11 respectively; Photoelectric sensor circuit 6 is connected with amplifier circuit 7, and A/D analog to digital converter 8 is connected with one-chip computer module 10 with amplifier circuit 7 respectively, and liquid crystal display circuit 11 is connected on one-chip computer module 10; Power switch button 1, photoelectric sensor 2, LED LCDs 5 are arranged on outside plastic casing 4, and internal circuit is all built in plastic casing 4; The power switch button 1 of the outside of plastic casing 4 is connected with the internal battery 9 of inside and photoelectric sensor circuit 6 respectively, photoelectric sensor circuit 6, the LED LCDs 5 that photoelectric sensor 2 connects upper plastic casing 4 inside is connected with the liquid crystal display circuit 11 of plastic casing 4 inside.
Described photoelectric sensor circuit 6 comprises internal battery 9, resistance R1, power switch button 1, photoelectric sensor 2; The anode of described internal battery 9 is connected with a pin of resistance R1, another pin of resistance R1 is connected with one end of power switch button 1, the other end of power switch button 1 is connected with the anode of photoelectric sensor 2, the negative electrode of photoelectric sensor 2 is connected with the negative electrode of internal battery 9, at the anode extraction voltage VCC of photoelectric sensor 2, at the negative electrode extraction voltage VDD of photoelectric sensor 2.
Described amplifier circuit 7 comprises resistance R2, R3, R4, R5, R6, R7, R8 that definite value is 100k Ω, and definite value is electric capacity C1, C2, C3, C4, C5 of 100nF, and three operational amplifiers U1, U2, U3; The IN+ pin of described operational amplifier U1 connects the V+ of photoelectric sensor circuit 6, one end of the IN-pin contact resistance R2 of operational amplifier U1, the other end of resistance R2 is connected to the OUT end of operational amplifier U1,4 pin of operational amplifier U1 and one end of electric capacity C1 are parallel to VCC, electric capacity C1 other end ground connection, 8 pin of operational amplifier U1 are connected to 8 pin of operational amplifier U2; The IN+ of operational amplifier U2 is connected to the V-of photoelectric sensor circuit 6, one end of the IN-contact resistance R8 of operational amplifier U2, the other end of resistance R8 is connected to the OUT end of operational amplifier U2, the IN-end of the two ends difference concatenation operation amplifier U1 and operational amplifier U2 of resistance R3,4 pin of operational amplifier U2 connect the VCC of photoelectric sensor circuit 6 and one end of electric capacity C5 respectively, the other end ground connection of C5,8 pin of operational amplifier U2 connect the VDD of photoelectric sensor circuit 6 and one end of electric capacity C3, the other end ground connection of C3 respectively; The OUT of described operational amplifier U1 holds one end of contact resistance R4, the other end IN-end of concatenation operation amplifier U3 and one end of resistance R5 respectively of resistance R4, and the other end of R5 is connected to the OUT end of amplifier U3; The OUT of described operational amplifier U2 holds one end of contact resistance R6, and the resistance R6 other end is the IN+ end of concatenation operation amplifier U3 and one end of resistance R7 respectively, the other end ground connection of resistance R7; 4 pin of described operational amplifier U3 connect the VCC of photoelectric sensor circuit 6 and one end C4 of electric capacity respectively, the other end ground connection of the other end C4 of electric capacity, 8 pin of operational amplifier U3 connect the other end ground connection of the VDD of photoelectric sensor circuit 6 and one end C2 of electric capacity, electric capacity C2 respectively; The OUT end of described operational amplifier U3 is connected to A/D analog to digital converter 8.
Embodiment 4: as Figure 1-5, a kind of portable real-time embedded intensity of illumination proving installation, comprises power switch button 1, photoelectric sensor 2, built-in power mounting casing 3, plastic casing 4, LED LCDs 5, internal circuit; Internal circuit comprises photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, internal battery 9, one-chip computer module 10, liquid crystal display circuit 11; Described internal battery 9 is connected with photoelectric sensor circuit 6, amplifier circuit 7, A/D analog to digital converter 8, one-chip computer module 10, liquid crystal display circuit 11 respectively; Photoelectric sensor circuit 6 is connected with amplifier circuit 7, and A/D analog to digital converter 8 is connected with one-chip computer module 10 with amplifier circuit 7 respectively, and liquid crystal display circuit 11 is connected on one-chip computer module 10; Power switch button 1, photoelectric sensor 2, LED LCDs 5 are arranged on outside plastic casing 4, and internal circuit is all built in plastic casing 4; The power switch button 1 of the outside of plastic casing 4 is connected with the internal battery 9 of inside and photoelectric sensor circuit 6 respectively, photoelectric sensor circuit 6, the LED LCDs 5 that photoelectric sensor 2 connects upper plastic casing 4 inside is connected with the liquid crystal display circuit 11 of plastic casing 4 inside.
Described photoelectric sensor circuit 6 comprises internal battery 9, resistance R1, power switch button 1, photoelectric sensor 2; The anode of described internal battery 9 is connected with a pin of resistance R1, another pin of resistance R1 is connected with one end of power switch button 1, the other end of power switch button 1 is connected with the anode of photoelectric sensor 2, the negative electrode of photoelectric sensor 2 is connected with the negative electrode of internal battery 9, at the anode extraction voltage VCC of photoelectric sensor 2, at the negative electrode extraction voltage VDD of photoelectric sensor 2.
Described amplifier circuit 7 comprises resistance R2, R3, R4, R5, R6, R7, R8 that definite value is 100k Ω, and definite value is electric capacity C1, C2, C3, C4, C5 of 100nF, and three operational amplifiers U1, U2, U3; The IN+ pin of described operational amplifier U1 connects the V+ of photoelectric sensor circuit 6, one end of the IN-pin contact resistance R2 of operational amplifier U1, the other end of resistance R2 is connected to the OUT end of operational amplifier U1,4 pin of operational amplifier U1 and one end of electric capacity C1 are parallel to VCC, electric capacity C1 other end ground connection, 8 pin of operational amplifier U1 are connected to 8 pin of operational amplifier U2; The IN+ of operational amplifier U2 is connected to the V-of photoelectric sensor circuit 6, one end of the IN-contact resistance R8 of operational amplifier U2, the other end of resistance R8 is connected to the OUT end of operational amplifier U2, the IN-end of the two ends difference concatenation operation amplifier U1 and operational amplifier U2 of resistance R3,4 pin of operational amplifier U2 connect the VCC of photoelectric sensor circuit 6 and one end of electric capacity C5 respectively, the other end ground connection of C5,8 pin of operational amplifier U2 connect the VDD of photoelectric sensor circuit 6 and one end of electric capacity C3, the other end ground connection of C3 respectively; The OUT of described operational amplifier U1 holds one end of contact resistance R4, the other end IN-end of concatenation operation amplifier U3 and one end of resistance R5 respectively of resistance R4, and the other end of R5 is connected to the OUT end of amplifier U3; The OUT of described operational amplifier U2 holds one end of contact resistance R6, and the resistance R6 other end is the IN+ end of concatenation operation amplifier U3 and one end of resistance R7 respectively, the other end ground connection of resistance R7; 4 pin of described operational amplifier U3 connect the VCC of photoelectric sensor circuit 6 and one end C4 of electric capacity respectively, the other end ground connection of the other end C4 of electric capacity, 8 pin of operational amplifier U3 connect the other end ground connection of the VDD of photoelectric sensor circuit 6 and one end C2 of electric capacity, electric capacity C2 respectively; The OUT end of described operational amplifier U3 is connected to A/D analog to digital converter 8.
Described liquid crystal display circuit 11 comprises one-chip computer module 10, electric capacity C6, LED LCDs that model is the LED display drive chip of MAX7219, resistance R9, capacitance are 0.1 μ F; P1.0, P1.1 of described one-chip computer module 10 connect serial data input DIN and the clock signal clk of MAX7219 respectively, and P1.2 is as LOAD signal; Described model is the VCC of the V+ termination photoelectric sensor circuit 6 of the LED display drive chip of MAX7219, the IEST of the LED display drive chip of MAX7219 holds one end of contact resistance R9, the other end of resistance R9 is connected to the VCC of photoelectric sensor circuit 6, the VCC of the one termination photoelectric sensor circuit 6 of electric capacity C6, other end ground connection; Described model is seven-segment driver line and the decimal dotted line that SEGA ~ SEGG and the DP of the LED display drive chip of MAX7219 is connected LED LCDs respectively, supply display source electric current; BIG0 ~ BIG7 connects LED LCDs 8 bit digital drive wire respectively, and carry-out bit selects signal, sucks electric current from every LED common cathode.
By reference to the accompanying drawings specific embodiment of the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (4)
1. a portable real-time embedded intensity of illumination proving installation, is characterized in that: comprise power switch button (1), photoelectric sensor (2), built-in power mounting casing (3), plastic casing (4), LED LCDs (5), internal circuit; Internal circuit comprises photoelectric sensor circuit (6), amplifier circuit (7), A/D analog to digital converter (8), internal battery (9), one-chip computer module (10), liquid crystal display circuit (11); Described internal battery (9) is connected with photoelectric sensor circuit (6), amplifier circuit (7), A/D analog to digital converter (8), one-chip computer module (10), liquid crystal display circuit (11) respectively; Photoelectric sensor circuit (6) is connected with amplifier circuit (7), and A/D analog to digital converter (8) is connected with one-chip computer module (10) with amplifier circuit (7) respectively, and liquid crystal display circuit (11) is connected on one-chip computer module (10); Power switch button (1), photoelectric sensor (2), LED LCDs (5) are arranged on plastic casing (4) outside, and internal circuit is all built in plastic casing (4); The power switch button (1) of the outside of plastic casing (4) is connected with the internal battery (9) of inside and photoelectric sensor circuit (6) respectively, the photoelectric sensor circuit (6) that in photoelectric sensor (2) connection, plastic casing (4) is inner, LED LCDs (5) is connected with the liquid crystal display circuit (11) of plastic casing (4) inside.
2. portable real-time embedded intensity of illumination proving installation according to claim 1, is characterized in that: described photoelectric sensor circuit (6) comprises internal battery (9), resistance R1, power switch button (1), photoelectric sensor (2); The anode of described internal battery (9) is connected with a pin of resistance R1, another pin of resistance R1 is connected with one end of power switch button (1), the other end of power switch button (1) is connected with the anode of photoelectric sensor (2), the negative electrode of photoelectric sensor (2) is connected with the negative electrode of internal battery (9), at the anode extraction voltage VCC of photoelectric sensor (2), at the negative electrode extraction voltage VDD of photoelectric sensor (2).
3. portable real-time embedded intensity of illumination proving installation according to claim 1, it is characterized in that: described amplifier circuit (7) comprises resistance R2, R3, R4, R5, R6, R7, R8 that definite value is 100k Ω, definite value is electric capacity C1, C2, C3, C4, C5 of 100nF, and three operational amplifiers U1, U2, U3; The IN+ pin of described operational amplifier U1 connects the V+ of photoelectric sensor circuit (6), one end of the IN-pin contact resistance R2 of operational amplifier U1, the other end of resistance R2 is connected to the OUT end of operational amplifier U1,4 pin of operational amplifier U1 and one end of electric capacity C1 are parallel to VCC, electric capacity C1 other end ground connection, 8 pin of operational amplifier U1 are connected to 8 pin of operational amplifier U2; The IN+ of operational amplifier U2 is connected to the V-of photoelectric sensor circuit (6), one end of the IN-contact resistance R8 of operational amplifier U2, the other end of resistance R8 is connected to the OUT end of operational amplifier U2, the IN-end of the two ends difference concatenation operation amplifier U1 and operational amplifier U2 of resistance R3,4 pin of operational amplifier U2 connect the VCC of photoelectric sensor circuit (6) and one end of electric capacity C5 respectively, the other end ground connection of C5,8 pin of operational amplifier U2 connect the VDD of photoelectric sensor circuit (6) and one end of electric capacity C3, the other end ground connection of C3 respectively; The OUT of described operational amplifier U1 holds one end of contact resistance R4, the other end IN-end of concatenation operation amplifier U3 and one end of resistance R5 respectively of resistance R4, and the other end of R5 is connected to the OUT end of amplifier U3; The OUT of described operational amplifier U2 holds one end of contact resistance R6, and the resistance R6 other end is the IN+ end of concatenation operation amplifier U3 and one end of resistance R7 respectively, the other end ground connection of resistance R7; 4 pin of described operational amplifier U3 connect the VCC of photoelectric sensor circuit (6) and one end C4 of electric capacity respectively, the other end ground connection of the other end C4 of electric capacity, 8 pin of operational amplifier U3 connect the other end ground connection of the VDD of photoelectric sensor circuit (6) and one end C2 of electric capacity, electric capacity C2 respectively; The OUT end of described operational amplifier U3 is connected to A/D analog to digital converter (8).
4. portable real-time embedded intensity of illumination proving installation according to claim 1, it is characterized in that: described liquid crystal display circuit (11) comprises one-chip computer module (10), model be the LED display drive chip of MAX7219, electric capacity C6, LED LCDs that resistance R9, capacitance are 0.1 μ F; P1.0, P1.1 of described one-chip computer module (10) connect serial data input DIN and the clock signal clk of MAX7219 respectively, and P1.2 is as LOAD signal; Described model is the VCC of the V+ termination photoelectric sensor circuit (6) of the LED display drive chip of MAX7219, the IEST of the LED display drive chip of MAX7219 holds one end of contact resistance R9, the other end of resistance R9 is connected to the VCC of photoelectric sensor circuit (6), the VCC of the one termination photoelectric sensor circuit (6) of electric capacity C6, other end ground connection; Described model is seven-segment driver line and the decimal dotted line that SEGA ~ SEGG and the DP of the LED display drive chip of MAX7219 is connected LED LCDs respectively, supply display source electric current; BIG0 ~ BIG7 connects LED LCDs 8 bit digital drive wire respectively, and carry-out bit selects signal, sucks electric current from every LED common cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520219168.1U CN204630660U (en) | 2015-04-13 | 2015-04-13 | A kind of portable real-time embedded intensity of illumination proving installation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520219168.1U CN204630660U (en) | 2015-04-13 | 2015-04-13 | A kind of portable real-time embedded intensity of illumination proving installation |
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|---|---|
| CN204630660U true CN204630660U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520219168.1U Expired - Fee Related CN204630660U (en) | 2015-04-13 | 2015-04-13 | A kind of portable real-time embedded intensity of illumination proving installation |
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| Country | Link |
|---|---|
| CN (1) | CN204630660U (en) |
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2015
- 2015-04-13 CN CN201520219168.1U patent/CN204630660U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170413 |