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Photo-sensor threshold setting method, photo-sensor and shading system

A technology of a light sensor and a setting method, applied in the field of light sensors, can solve the problems of being unsuitable for a sunshade system, the type of light and the incident angle of the light, the requirements are relatively strict, and the cost is high.

Inactive Publication Date: 2009-10-07
王金友
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this kind of light sensor not only has high cost, but also has strict requirements on the type of light and the incident angle of light, it cannot be used in natural light and is not suitable for extensive use in sunshade systems.

Method used

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  • Photo-sensor threshold setting method, photo-sensor and shading system
  • Photo-sensor threshold setting method, photo-sensor and shading system
  • Photo-sensor threshold setting method, photo-sensor and shading system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as image 3 As shown, the threshold setting module includes:

[0052] The adjustment device is equipped with an adjustable resistor, which is used to receive user input and adjust the resistance of the adjustable resistor; and according to the confirmation signal input by the user, the voltage value at both ends of the adjustable resistor is written into the operation control module at this time As the threshold;

[0053] The comparator is connected to the natural light collecting module and is used to compare the voltage value obtained by the natural light collecting module with the voltage value of the adjusting device;

[0054] When the voltage value of the regulating device is small, a small signal is displayed;

[0055] When the voltage value of the adjusting device is large, a large signal is displayed;

[0056] When the two values ​​are equal, the equivalent signal is displayed;

[0057] The threshold setting module can also be equipped with indicator lights, th...

Embodiment 2

[0064] Such as Figure 4 As shown, the threshold setting module includes:

[0065] The adjustment device is equipped with an adjustable resistor, which is used to receive user input and adjust the resistance of the adjustable resistor; and according to the confirmation signal input by the user, the voltage value at both ends of the adjustable resistor is written into the operation control module at this time As the threshold;

[0066] The display window is used to display the voltage value of the digital module and the voltage value at both ends of the adjustable resistor.

[0067] The setting method of the light sensor threshold used is as follows:

[0068] S21: Collect natural light, digitally process its light intensity, and convert the light intensity information into a voltage value through a photoelectric conversion circuit;

[0069] S22: Display the voltage value in step S21 in the display window;

[0070] S23: Receive the voltage value adjusted by the user in real time; an...

Embodiment 3

[0074] Such as Figure 5 As shown, the threshold setting module described in this embodiment receives the confirmation signal input by the user, and directly writes the voltage value of the digitizing module into the operation control module as the threshold.

[0075] The setting method of the light sensor threshold used is as follows:

[0076] S31: Collect natural light, digitally process its light intensity, and convert the light intensity information into a voltage value through a photoelectric conversion circuit;

[0077] S32: Receive the confirmation signal input by the user, and use the voltage value in step S31 as the threshold value.

[0078] When using the light sensor described in this embodiment to set the threshold, the user only needs to input the confirmation signal when he thinks that the current natural light intensity is the critical value for which he wants the sunshade system to operate, and the natural light collection module can collect The current natural ligh...

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Abstract

The invention discloses a photo-sensor threshold setting method, photo-sensor and shading system. The photo-sensor threshold setting method includes the following steps: acquisition of natural light, performing digital process to the light intensity of the natural light; setting threshold by taking the obtained digital light ray intensity as a reference. Because the invention captures the current natural light as a reference when setting the threshold of the photo-sensor, so that the user can have a very intuitive perception of the light intensity of the natural light corresponding to the threshold when setting the threshold; and because the position of the photo-sensor are identical at the threshold setting stage and the control stage, the light incidence angles of the natural light are almost identical, so the user can accurately set the expected light intensity as a threshold only by setting the threshold based on the natural light intensity when it is expected to set as threshold at an appropriate time, which is very convenient and accurate.

Description

Technical field [0001] The present invention relates to the technical field of light sensors, and more specifically, to a method for setting the threshold of a light sensor, and a light sensor and a sunshade system using the setting method. Background technique [0002] With the development of smart home technology, light sensors have entered people's daily lives. If the light sensor is added to the sunshade system, the automatic control of the sunshade system according to the light intensity can be realized, and its structure is as follows figure 1 Shown. [0003] The existing sun shading system with light sensor usually presets the threshold in the light sensor during the threshold setting stage; after the threshold is set, in the control stage, through the natural light acquisition module and photoelectric conversion circuit of the light sensor , Collect the voltage value that can reflect the light intensity information, and then compare whether the voltage value reaches the ...

Claims

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Application Information

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IPC IPC(8): G01J1/42
Inventor 王金友
Owner 王金友
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