CN209182000U - A kind of detection circuit, the detection device and system of a kind of light source stroboscopic - Google Patents
A kind of detection circuit, the detection device and system of a kind of light source stroboscopic Download PDFInfo
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- CN209182000U CN209182000U CN201920136836.2U CN201920136836U CN209182000U CN 209182000 U CN209182000 U CN 209182000U CN 201920136836 U CN201920136836 U CN 201920136836U CN 209182000 U CN209182000 U CN 209182000U
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- light source
- photodiode
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Abstract
The utility model discloses a kind of detection circuits, the detection device and system of a kind of light source stroboscopic, comprising: power supply；Photodiode based on light source output electric current；It connects with photodiode, the electric current and resistive component of electric current, power supply output based on photodiode output generate the driving circuit of output voltage；Driving circuit includes the circuit that multichannel has different illumination related coefficients；It is connect with driving circuit, selects the circuit of matched illumination related coefficient to control output voltage in the control unit of given voltage range in the driving circuit.Since light source stroboscopic can be detected based on the size variation situation of the voltage value determined by light source, the detection to light source stroboscopic may be implemented in the utility model.
Description
Technical field
The utility model relates to the detection dresses of photoelectric detection technology field more particularly to a kind of detection circuit, light source stroboscopic
It sets, method and optoelectronic detecting device.
Background technique
Light source stroboscopic refers to light source under exchange or the driving of pulse dc power, as the periodicity of current amplitude becomes
Change, the light source characteristic of the corresponding variation of the generations such as illumination, brightness, when light source stroboscopic, light source can flash bounce, to make to human eye
At injury, attention with the universal and people of LED illumination product to illumination health, influence of the light source stroboscopic to human body by
It has arrived people more and more to pay attention to, correspondingly, how light source stroboscopic has been detected and also receive people and more and more close
Note.It follows that a kind of detection scheme of light source stroboscopic is needed, to realize the detection to light source stroboscopic.
Utility model content
The utility model embodiment provides a kind of detection circuit, the detection device and system of a kind of light source stroboscopic, to realize
Detection to light source stroboscopic.
In order to solve the above-mentioned technical problem, the utility model is realized in this way:
In a first aspect, providing a kind of detection circuit, comprising:
Power supply；
Photodiode based on light source output electric current；
It connects with the photodiode, the electric current of electric current, power supply output based on photodiode output,
And resistive component generates the driving circuit of output voltage；The driving circuit includes that multichannel has different illumination related coefficients
Circuit；
It is connect with the driving circuit, selects the circuit of matched illumination related coefficient to control in the driving circuit
Control unit of the output voltage in given voltage range.
Second aspect provides a kind of detection device of light source stroboscopic, comprising:
Detection circuit as described in above-mentioned first aspect；
The photodiode light-receiving surface of the detection circuit is set, is filtered to the light source of detection circuit detection
V (λ) optical filter；
According to the voltage that the driving circuit of the detection circuit exports, determine that the light source stroboscopic for characterizing the light source is joined
Several computing units.
The third aspect provides a kind of detection system of light source stroboscopic, comprising: device as described in above-mentioned second aspect and
Terminal device, application program of the deployment for being communicated with device described in above-mentioned second aspect on the terminal device.
At least one above-mentioned technical solution provided by the embodiment of the utility model can achieve following technical effect:
In the utility model embodiment, two pole of photoelectricity can be based on when photodiode is based on light source output electric current
Resistive component in the electric current of pipe output, the electric current and driving circuit of power supply output generates output voltage, it is then possible to
The circuit of matched illumination related coefficient is selected from driving circuit by control unit to control output voltage in specified electricity
Range is pressed, since light source stroboscopic can be detected based on the size variation situation of the voltage value determined by light source, Ke Yishi
Now to the detection of light source stroboscopic.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is a kind of one of the module diagram for detection circuit that the utility model one embodiment provides；
Fig. 2 is the two of the module diagram for a kind of detection circuit that the utility model one embodiment provides；
Fig. 3 is the three of the module diagram for a kind of detection circuit that the utility model one embodiment provides；
Fig. 4 be the detection device of a kind of light source stroboscopic that the utility model one embodiment provides module diagram it
One；
Fig. 5 be the detection device of a kind of light source stroboscopic that the utility model one embodiment provides module diagram it
Two；
Fig. 6 is a kind of schematic diagram of the detection system for light source stroboscopic that the utility model one embodiment provides.
Specific embodiment
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
It is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to the utility model
The range of protection.
Below in conjunction with attached drawing, the technical solution that various embodiments of the utility model provides is described in detail.
Referring to Figure 1, Fig. 1 be a kind of module diagram of detection circuit that provides of the utility model one embodiment it
One, as shown in Figure 1, the circuit comprises the following modules:
Power supply 11, photodiode 12, driving circuit 13 and control unit 14.
In the utility model embodiment, power supply 11 can be connected with photodiode 12, in one example, power supply 11
It can be connected with the cathode of photodiode 12.
When power supply 11 is connected with the cathode of photodiode 12, if photodiode 12 is in the conductive state, such as it is in
Optical signal sample states, the then electric current that power supply 11 exports can pass through photodiode 12；If photodiode 12 is in and does not lead
Logical state, the then electric current that power supply 11 exports can not pass through photodiode 12.
Power supply 11 can be connect by photodiode 12 with driving circuit 13 and control unit 14, when power supply 11 and light
When the cathode of electric diode 12 is connected, if photodiode 12 is in the conductive state, the electric current that power supply 11 exports can pass through
Photodiode 12 is input to driving circuit 13 and control unit 14；If photodiode 12 is in and does not turn on state, electricity
The electric current that source 11 exports can not be input to driving circuit 13 and control unit 14.
In the utility model embodiment, when it is the on state, photodiode 11 can be based on light source output electricity
Stream, i.e. photodiode 11 can carry out optical signal sampling to light source, and the optical signal sampled is converted to electric signal, to produce
Raw electric current.
In one embodiment, photodiode 11 may include that the wave-length coverage of spectral response meets 380nm (nanometer)
To 780nm, and response speed is not more than the photodiode of 100ns (nanosecond).
In one example, further, photodiode 11 may include that the wave-length coverage of spectral response meets 400nm
To 730nm, or meet 420nm to 700nm, and response speed is not more than the photodiode of 100ns (nanosecond).
In another example, further, photodiode 11 may include that the wave-length coverage of spectral response meets
380nm to 780nm, and response speed is not more than the photodiode of 20ns (nanosecond).
After photodiode 11 generates electric current, electric current can be exported.
Driving circuit 12 can connect with photodiode 11, and in one example, driving circuit 12 can be with photoelectricity two
The anode of pole pipe 11 is connected, at this point, the cathode of photodiode 12 can be connect with power supply 14, the electricity that photodiode 11 exports
Stream can flow to power supply 14.
It should be noted that the current direction photodiode 12 that power supply 11 exports, sense of current can be such as the side of Fig. 3
Shown in 1.The current direction power supply 11 that photodiode 12 exports, circuit direction can be as shown in the direction 2 of Fig. 3.Due to electricity
The sense of current that source 11 exports, therefore the sense of current exported with photodiode 11 is on the contrary, be input to driving circuit 13
Electric current can for power supply 11 export electric current, with photodiode 11 export electric current difference.
It may include multiplex circuit in driving circuit 13, as shown in Figure 2, wherein multiplex circuit has different illumination phases
Relationship number.In the utility model embodiment, illumination related coefficient can electricity with direct photodiode 12 based on light source output
The corresponding relationship between the voltage generated in circuit and the illumination of the light source is flowed, in one example, illumination related coefficient can
With the voltage that the electric current for being exported according to photodiode 12 generates in circuit, to determine the illumination of light source.
For example, the voltage that the electric current that photodiode 12 exports generates in circuit can be 0.9V, circuit setting
Illumination related coefficient can be 1000lx/V, then can determine that the illumination of light source is 0.9V*1000lx/V=900lx.
In one example, the resistive component different for resistance value or equivalent resistance, identical voltage and illumination it
Between illumination related coefficient can be different.Therefore in the utility model embodiment, can first determine driving circuit 13 per all the way
Then the resistance value or equivalent resistance of resistive component in circuit according to calibration equipment, such as normal luminance meter, are driven to be arranged
The illumination related coefficient of every road circuit of dynamic circuit 13.
For example, the resistance value that the resistive component of the circuit all the way in driving circuit 13 can be set is 10K Ω, then it can root
The illuminance correction coefficient that the road circuit is calculated according to normal luminance meter is 10000lx/V；It can be set in driving circuit 13
The resistance value of the resistive component of circuit is 100K Ω all the way, then the illumination of the road circuit can be calculated according to normal luminance meter
Correction coefficient is 1000lx/V；The resistance value that the resistive component of the circuit all the way in driving circuit 13 can be set is 1M Ω, then
The illuminance correction coefficient that the road circuit can be calculated according to normal luminance meter is 100lx/V.
In the utility model embodiment, driving circuit 13 can be connected with control unit 14, and control unit 14 can be
In multiple circuits of driving circuit 13, select the circuit of matched illumination related coefficient to control output voltage in given voltage model
It encloses.
In one example, control unit 14 can control at least circuit and the photodiode 12 all the way of driving circuit 13
Connection, at this point, driving circuit 13 can be according to the resistance value or equivalent resistance of the resistive component in the electric current of input and the circuit
Value, Lai Shengcheng output voltage.
It should be noted that control unit 14 can control in driving circuit 13 all the way in the utility model embodiment
Circuit is connected to photodiode 12, and the multiplex circuit that also can control in driving circuit 13 connects with photodiode 12 simultaneously
Logical, the utility model embodiment is without limitation.When the circuit difference being connected to photodiode 11,13 base of driving circuit
Resistive component in the different circuit, and, the output voltage of the electric current of input, generation is different.
In the utility model embodiment, as shown in figure 3, control unit 14 can also be connected with photodiode 12, and
The light-receiving surface for controlling photodiode 12 carries out optical signal sampling to light source.In one example, control unit 14 can first really
Determine sampling parameter, then, according to the predetermined sampling parameter, carries out light to control the light-receiving surface of photodiode.Its
In, sampling parameter includes sampling period and number of samples.
In the utility model embodiment, the resistance value or equivalent resistance of every road circuit of driving circuit 13 are different.
In the utility model embodiment, two pole of photoelectricity can be based on when photodiode is based on light source output electric current
Resistive component in the electric current of pipe output, the electric current and driving circuit of power supply output generates output voltage, it is then possible to
The circuit of matched illumination related coefficient is selected from driving circuit by control unit to control output voltage in specified electricity
Press range.When light source is there are when stroboscopic, the measured value of voltage will appear a week in the multiple measurement in a sampling period
The variation of phase property, therefore light source stroboscopic can be detected based on the size variation situation of the voltage value determined by light source, thus, it can
To realize the detection to light source stroboscopic.
Fig. 4 is referred to, Fig. 4 is a kind of module of the detection device for light source stroboscopic that the utility model one embodiment provides
One of schematic diagram, as shown in figure 4, the circuit comprises the following modules:
Detection circuit 41, V (λ) optical filter 42 and computing unit 43.
In the utility model embodiment, the photodiode 12 in detection circuit 41 is can be set in V (λ) optical filter 12
Light-receiving surface before, filtered before 12 light of photodiode to light source.
In the utility model embodiment, detection circuit 41 can be connected with computing unit 43, and the voltage of generation is defeated
Enter the voltage that can be exported to computing unit 43, computing unit 43 according to the driving circuit 13 of detection circuit 41, is used for determine
Characterize the computing unit of the light source stroboscopic parameter of the light source.
In the utility model embodiment, light source stroboscopic parameter may include flashing percentage and/or scintillation index.
When light source stroboscopic parameter includes flashing percentage, computing unit 43 can be calculated according to formula as follows
Flashing percentage corresponding with light source:
Flash percentage (%)=(Ex_max-Ex_min)/(Ex_max+Ex_min)
Wherein, Ex_max is the maximal illumination value of the light source measured in a detection cycle, and Ex_min is identical at this
Detection cycle in the minimal illumination value of light source that measures.
When light source stroboscopic parameter includes scintillation index, computing unit 43 can be calculated according to formula as follows with
The corresponding scintillation index of light source:
Scintillation index=Σ Ex_u/ Σ (Ex_u-Ex_l)
Wherein, Ex_u is the brightness value higher than average illumination value measured in a detection cycle, and Ex_l is in the phase
The brightness value lower than average illumination value measured in same detection cycle, and average illumination value can be in identical detection week
The average value of all brightness values measured in phase
And when calculating the frequency of light source, computing unit 43 can be changed by the prior art, such as Fourier, according to detection
The voltage value that circuit 41 exports, to calculate the frequency of light source.
In the utility model embodiment, as shown in figure 5, the detection device of the light source stroboscopic can also include adjustment unit
44, wherein adjustment unit 44 can be connected with the photodiode 12 in computing unit 43 and detection circuit 41, based on
Calculate unit 43 export light source stroboscopic parameter, come adjust photodiode 12 light source sampling parameter.
In the utility model embodiment, it can be filtered by V (λ) optical filter come the light source detected to detection circuit
Light, it is then possible to the voltage exported by computing unit according to the driving circuit of detection circuit, to determine for characterizing light source
Light source stroboscopic parameter, to realize the detection to light source stroboscopic based on determining parameter.
Fig. 6 is referred to, Fig. 6 is a kind of signal of the detection system for light source stroboscopic that the utility model one embodiment provides
Figure, as shown in fig. 6, the system includes the detection device 61 and terminal device 62 of light source stroboscopic, wherein disposed on terminal device 62
For the application program with the communication of the detection device 61 of light source stroboscopic.
In the utility model embodiment, terminal device can be communicated with the detection device of light source stroboscopic, and obtain light source
The parameter for the light source stroboscopic for characterizing light source that the detection device of stroboscopic determines, and the parameter of acquisition is shown, from
And user is allowed to check the parameter, and according to the parameter come the light source stroboscopic of visual perception light source.
It should be noted that the above description is only the embodiments of the present invention, it is practical new to be not limited to this
Type.To those skilled in the art, various modifications and changes may be made to the present invention.All spirit in the utility model
With any modification, equivalent replacement, improvement and so within principle, should be included in the utility model scope of the claims it
It is interior.
Claims (7)
1. a kind of detection circuit characterized by comprising
Power supply；
Photodiode based on light source output electric current；
It connects with the photodiode, the electric current of electric current, power supply output based on photodiode output, and
Resistive component generates the driving circuit of output voltage；The driving circuit includes the electricity that multichannel has different illumination related coefficients
Road；
It is connect with the driving circuit, selects the circuit of matched illumination related coefficient in the driving circuit to control output
Control unit of the voltage in given voltage range.
2. circuit according to claim 1, which is characterized in that described control unit is also connected with the photodiode,
For according to predetermined sampling parameter, the light-receiving surface for controlling the photodiode to carry out optical signal to the light source and adopts
Sample；Wherein, the sampling parameter includes sampling period and number of samples.
3. circuit according to claim 1 or 2, which is characterized in that the resistance value of the road driving circuit Zhong Mei circuit or
Equivalent resistance is different.
4. circuit according to claim 1, which is characterized in that the photodiode includes the wave-length coverage of spectral response
Between 380 nanometers to 780 nanometers and response speed is not more than the photodiode of 100 nanoseconds.
5. a kind of detection device of light source stroboscopic characterized by comprising
Detection circuit as described in claim 1-4 is any；
The photodiode light-receiving surface of the detection circuit is set, the V to filter to the light source of detection circuit detection
(λ) optical filter；
According to the voltage that the driving circuit of the detection circuit exports, the light source stroboscopic parameter for characterizing the light source is determined
Computing unit.
6. device according to claim 5, which is characterized in that described device further include:
It is connected with the photodiode in computing unit and the detection circuit, the light source stroboscopic based on computing unit output
Parameter adjusts the adjustment unit of the sampling parameter of the light source of the photodiode.
7. a kind of detection system of light source stroboscopic characterized by comprising such as the inspection of light source stroboscopic described in claim 5 or 6
Device and terminal device are surveyed, deployment is for the application journey with the communication of the detection device of the light source stroboscopic on the terminal device
Sequence.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920136836.2U CN209182000U (en) | 2019-01-25 | 2019-01-25 | A kind of detection circuit, the detection device and system of a kind of light source stroboscopic |
| EP19911347.3A EP3901605A4 (en) | 2019-01-25 | 2019-12-31 | Detection circuit, apparatus and method for detecting strobing of light source, and photoelectric detection device |
| PCT/CN2019/130453 WO2020151465A1 (en) | 2019-01-25 | 2019-12-31 | Detection circuit, apparatus and method for detecting strobing of light source, and photoelectric detection device |
| US17/384,931 US11910100B2 (en) | 2019-01-25 | 2021-07-26 | Detection circuit, device and method for detecting light source flicker, and photoelectric detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920136836.2U CN209182000U (en) | 2019-01-25 | 2019-01-25 | A kind of detection circuit, the detection device and system of a kind of light source stroboscopic |
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| Publication Number | Publication Date |
|---|---|
| CN209182000U true CN209182000U (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920136836.2U Active CN209182000U (en) | 2019-01-25 | 2019-01-25 | A kind of detection circuit, the detection device and system of a kind of light source stroboscopic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540479A (en) * | 2019-01-25 | 2019-03-29 | 欧普照明股份有限公司 | A kind of detection circuit, a kind of detection device of light source stroboscopic, method and optoelectronic detecting device |
| WO2020151465A1 (en) * | 2019-01-25 | 2020-07-30 | 欧普照明股份有限公司 | Detection circuit, apparatus and method for detecting strobing of light source, and photoelectric detection device |
-
2019
- 2019-01-25 CN CN201920136836.2U patent/CN209182000U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540479A (en) * | 2019-01-25 | 2019-03-29 | 欧普照明股份有限公司 | A kind of detection circuit, a kind of detection device of light source stroboscopic, method and optoelectronic detecting device |
| WO2020151465A1 (en) * | 2019-01-25 | 2020-07-30 | 欧普照明股份有限公司 | Detection circuit, apparatus and method for detecting strobing of light source, and photoelectric detection device |
| US11910100B2 (en) | 2019-01-25 | 2024-02-20 | Opple Lighting Co., Ltd. | Detection circuit, device and method for detecting light source flicker, and photoelectric detection device |
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