Illuminating device with self-laser light sensing prevention control mechanism and method thereof

Abstract

The invention relates to a lighting device with an anti-self-laser light sensing control mechanism. The lighting device comprises a light emitting module, a light sensing module and a control module, the light detection module generates a light detection signal. The control module controls the light emitting module according to the light detection signal. Wherein the control module executes a first detection mode to calculate a first average value of the light detection signal in a first time window, and calculates an initial threshold value according to the first average value; the control module starts the light emitting module after the first time window and when the light detection signal is smaller than an initial threshold value. The control module executes a second detection mode to calculate a second average value of the light detection signal in a second time window after the light emitting module is started, and calculates an advanced threshold value according to the second average value to replace the initial threshold value.

Description

Technical Field

[0001] The present invention relates to a lighting device, in particular to a lighting device with an anti-self-laser sensing control mechanism, and also relates to an anti-self-laser sensing control method for the lighting device. Background Art

[0002] In order to achieve various intelligent functions and meet the needs of energy saving and power saving, lighting devices are usually equipped with light detection modules to detect ambient light and control the lighting devices according to the detection results. However, the light detection module may self-excite due to environmental factors or the light emitted by the lighting device itself, causing the lighting device to remain in the on state. The lighting device may also repeatedly switch on and off due to self-excitation.

[0003] In order to solve the above problems, it is necessary to adjust the position of the light detection module in the lighting device or use a combination of the light detection module and the infrared detection module, which may lead to the need to redesign the structure of the entire lighting device, which greatly increases the production cost of the lighting device. In addition, when multiple lighting devices are set in the same area, these lighting devices are prone to malfunction due to differences in preset values ​​or response speeds.

[0004] Chinese patent authorization document CN217332834 U and Chinese patent authorization document CN219436958U also disclose improved anti-self-excitation technology, but still cannot effectively solve the above-mentioned problem. Summary of the invention

[0005] According to one embodiment of the present invention, a lighting device with an anti-self-laser sensing control mechanism is proposed, which includes a light-emitting module, a light detection module and a control module. The light detection module generates a light detection signal. The control module controls the light-emitting module according to the light detection signal. The control module executes a first detection mode to calculate a first average value of the light detection signal within a first time window, and calculates an initial threshold value according to the first average value. The control module activates the light-emitting module after the first time window has passed and the light detection signal is less than the initial threshold value. The control module executes a second detection mode to calculate a second average value of the light detection signal within a second time window after the light-emitting module is activated, and calculates an advanced threshold value according to the second average value to replace the initial threshold value.

[0006] As an improvement of the present invention, the control module turns off the light emitting module when the light detection signal is greater than the advanced threshold value, and re-executes the first detection mode.

[0007] As an improvement of the present invention, the control module subtracts an error constant from the first average value to calculate an initial threshold value.

[0008] As an improvement of the present invention, the control module adds an error constant to the second average value to calculate the advanced threshold value.

[0009] As an improvement of the present invention, the light detection module detects light through the cover to generate a light detection signal, and the haze of the cover is greater than the haze of the transparent material.

[0010] According to another embodiment of the present invention, a self-laser sensing control method is proposed, which includes the following steps: executing a first detection mode to calculate a first average value of a light detection signal of a light detection module within a first time window; calculating an initial threshold value based on the first average value; starting the light module after the first time window has passed and the light detection signal is less than the initial threshold value; executing a second detection mode to calculate a second average value of the light detection signal within a second time window after the light module is started; and calculating an advanced threshold value based on the second average value to replace the initial threshold value.

[0011] As an improvement of the present invention, the anti-self-laser sensing control method further includes the following steps: turning off the light emitting module when the light detection signal is greater than the advanced threshold value; and re-executing the first detection mode.

[0012] As an improvement of the present invention, the step of calculating the initial threshold value according to the first average value includes the following steps: subtracting an error constant from the first average value to calculate the initial threshold value.

[0013] As an improvement of the present invention, the step of calculating the advanced threshold value according to the second average value includes the following steps: adding the second average value to an error constant to calculate the advanced threshold value.

[0014] As an improvement of the present invention, the light detection module detects light through the cover to generate a light detection signal, and the haze of the cover is greater than the haze of the transparent material.

[0015] As described above, the lighting device with the anti-self-laser sensing control mechanism according to the embodiments of the present invention may have one or more of the following advantages:

[0016] (1) According to the content disclosed in the present invention, the lighting device includes a light-emitting module, a light-detection module and a control module. The light-detection module generates a light-detection signal. The control module controls the light-emitting module according to the light-detection signal. The control module executes a first detection mode to calculate a first average value of the light-detection signal in a first time window, and calculates an initial threshold value according to the first average value. The control module activates the light-emitting module after the first time window has passed and the light-detection signal is less than the initial threshold value. The control module executes a second detection mode to calculate a second average value of the light-detection signal in a second time window after the light-emitting module is activated, and calculates an advanced threshold value according to the second average value to replace the initial threshold value. The control module turns off the light-emitting module when the light-detection signal is greater than the advanced threshold value. Through the above-mentioned two-stage detection mode (first detection mode + second detection mode), the lighting device replaces the initial threshold value with the advanced threshold value after the light-emitting module is activated, and the advanced threshold value can take into account the factor of the light emitted by the light-emitting module itself, and is not limited to the initial threshold value. Therefore, the lighting device can effectively reduce the self-excitation phenomenon, making the lighting device more energy-saving and power-saving.

[0017] (2) According to the content disclosed by the present invention, the control module of the lighting device turns off the light module when the light detection signal is greater than the advanced threshold value, and re-executes the first detection mode to regenerate the initial threshold value. In this way, the regenerated initial threshold value can be more consistent with the current ambient brightness, so that the adaptability of the lighting device is greatly improved.

[0018] (3) According to the content disclosed in the present invention, the control module of the lighting device can subtract the error constant from the first average value to calculate the initial threshold value, and add the error constant to the second average value to calculate the advanced threshold value. The above calculation mechanism adjusts the initial threshold value and the advanced threshold value through the error constant, so that the lighting device is less likely to produce self-excitation due to environmental factors. Therefore, the performance of the lighting device can be greatly improved, and it can be more energy-saving and power-saving.

[0019] (4) According to the content disclosed by the present invention, the lighting device can effectively reduce the self-excitation phenomenon caused by environmental factors through the above-mentioned two-stage detection mode. Therefore, the lighting device does not need to significantly change the original structural design, nor does it need to use a combination of a light detection module and an infrared detection module. Therefore, the manufacturing cost of the lighting device can be reduced, making the lighting device more widely used.

[0020] (5) According to the content disclosed in the present invention, the light detection module of the lighting device can detect light through the cover to generate a light detection signal, and the haze of the cover is greater than the haze of the transparent material. The design of the above-mentioned cover can reduce the sensitivity of the light detection module, so that the detection threshold value of the light detection module is increased. Therefore, the light detection module can use a photosensitive component with a smaller light detection amount to detect a larger light intensity change. Therefore, the manufacturing cost of the lighting device can be further reduced, making the lighting device more widely used.

[0021] (6) According to the content disclosed by the present invention, the design of the lighting device is simple, and the self-excitation phenomenon caused by environmental factors can be effectively reduced through the above-mentioned two-stage detection mode. Therefore, the lighting device can achieve the desired effect while reducing the cost, so that the practicality of the lighting device is greatly improved. Therefore, the lighting device can meet the needs of different applications.

[0022] (7) According to the content disclosed by the present invention, the lighting device can be applied to various smart applications (such as smart home, smart parking lot, smart office, etc.), and can realize the functions of these smart applications to meet the needs of these smart applications. Therefore, the lighting device can meet the trend of future development. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 4 is a block diagram of a lighting device with an anti-self-laser sensing control mechanism according to a first embodiment of the present invention.

[0024] Figure 2 FIG. 4 is a schematic diagram of the operating state of the lighting device with the anti-self-laser sensing control mechanism according to the first embodiment of the present invention.

[0025] Figure 3 FIG. 4 is a schematic diagram of the structure of a lighting device with an anti-self-laser sensing control mechanism according to a first embodiment of the present invention.

[0026] Figure 4 FIG. 4 is a flow chart of a method for preventing self-laser sensing according to a second embodiment of the present invention.

[0027] Figure 5 FIG. 4 is a flow chart of a method for preventing self-laser sensing according to a third embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1-lighting device; 11-light emitting module; 12-light detection module; 13-control module; 14-end cover; 141-cover body; 15-tube body; Ds-light detection signal; Cs-control signal; S41~S47, S51~S60-step process.

[0030] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the contents are sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Moreover, according to the contents, claims and drawings disclosed in this specification, any person skilled in the relevant art can easily understand the purposes and advantages of the present creation. DETAILED DESCRIPTION

[0031] The following will refer to the relevant drawings to illustrate an embodiment of the lighting device with an anti-self-laser sensing control mechanism according to the present invention. For the sake of clarity and convenience of the diagram description, the components in the drawings may be exaggerated or reduced in size and proportion. In the following description and / or claims, when it is mentioned that a component is "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or there may be an intervening component; and when it is mentioned that a component is "directly connected" or "directly coupled" to another component, there is no intervening component, and other words used to describe the relationship between components or layers should be interpreted in the same way. For ease of understanding, the same components in the following embodiments are illustrated with the same symbols.

[0032] See also Figure 1 , which is a block diagram of a lighting device with an anti-self-laser sensing control mechanism according to a first embodiment of the present invention. As shown in the figure, the lighting device 1 includes a light emitting module 11, a light detection module 12 and a control module 13. The control module 13 is connected to the light emitting module 11 and the light detection module 12. In one embodiment, the control module 13 may be a microcontroller (MCU). In another embodiment, the control module 13 may also be a central processing unit (CPU), an application-specific integrated circuit chip (ASIC), a field programmable gate array (FPGA) or other similar components. In one embodiment, the light detection module 12 may be a photoresistor. In another embodiment, the light detection module 12 may also be various illuminance meters or optical sensors. In one embodiment, the light emitting module 11 may be a light emitting diode (LED). In another embodiment, the light emitting module 11 may also be a fluorescent lamp, a light bulb, etc.

[0033] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device with an anti-self-laser sensing control mechanism according to this embodiment should still be included in the patent scope of the present invention.

[0034] See also Figure 2 , which is a schematic diagram of the operating state of the lighting device with an anti-self-laser sensing control mechanism according to the first embodiment of the present invention. As shown in the figure, the light detection module 12 can detect the ambient light and generate a light detection signal Ds. The control module 13 generates a control signal Cs according to the light detection signal Ds to control the light emitting module 11.

[0035] When the lighting device 1 is connected to a power source, the control module 13 executes a first detection mode to calculate a first average value of the light detection signal Ds within a first time window, and calculates an initial threshold value based on the first average value. In this embodiment, the first time window may be 10 seconds. In this embodiment, an error constant may be added to the calculation of the initial threshold value, and the control module 13 calculates a first average value of the light detection signal Ds within 10 seconds after the lighting device 1 is connected to a power source, and subtracts the error constant from the first average value to obtain the initial threshold value. In another embodiment, the first time window may be 5 seconds, 12 seconds, or 15 seconds, which may be adjusted according to actual needs. The error constant may be the difference between the first illumination and the second illumination. The first illumination may be the illumination measured by the lighting device 1 operating at a target brightness in a target area (an area where the lighting device 1 is installed), and the second illumination may be the illumination measured by the lighting device 1 operating at a target brightness in a dark room. In another embodiment, the above-mentioned error constant may also be adjusted according to actual needs, so the error constant is not used to calculate the initial threshold value.

[0036] Then, the control module 13 continues to compare the light detection signal Ds with the initial threshold value after the first time window. When the control module 13 determines that the light detection signal Ds is greater than the initial threshold value, the control module 13 does not generate the control signal Cs. When the control module 13 determines that the light detection signal Ds is less than the initial threshold value, the control module 13 determines that the illumination of the ambient light is too low and activates the light emitting module 11.

[0037] Next, after the light-emitting module 11 is started, the control module 13 may wait for the delay time interval to execute the second detection mode to calculate the second average value of the light detection signal Ds in the second time window, and calculate the advanced threshold value based on the second average value to replace the initial threshold value. In this embodiment, the second time window may be 30 seconds, and the delay time interval may be 10 seconds. In this embodiment, the above-mentioned error constant may also be added to the calculation of the advanced threshold value. The control module 13 waits for another 10 seconds after the light-emitting module 11 is started, and then calculates the second average value of the light detection signal Ds within 30 seconds, and subtracts the error constant from the second average value to obtain the advanced threshold value. In another embodiment, the second time window may be 20 seconds, 25 seconds, or 35 seconds, which may be adjusted according to actual needs. In another embodiment, the delay time interval may be 8 seconds, 12 seconds, or 15 seconds, which may be adjusted according to actual needs. In another embodiment, the above-mentioned error constant may also be adjusted according to actual needs, so the error constant is not used to calculate the advanced threshold value.

[0038] Then, the control module 13 continues to compare the light detection signal Ds with the advanced threshold value after the second time window. When the control module 13 determines that the light detection signal Ds is less than the advanced threshold value, the control module 13 does not generate the control signal Cs. When the control module 13 determines that the light detection signal Ds is greater than the advanced threshold value, the control module 13 determines that the intensity of the ambient light is sufficient and turns off the light-emitting module 11. Then, the control module 13 re-executes the first detection mode. Therefore, the first detection mode and the second detection mode can be executed in a loop. In addition, the judgment logic of the above two threshold values ​​is opposite; when the control module 13 determines that the light detection signal Ds is less than the initial threshold value, the control module 13 starts the light-emitting module 11; when the control module 13 determines that the light detection signal Ds is greater than the advanced threshold value, the control module 13 turns off the light-emitting module 11.

[0039] As can be seen from the above, through the above two-stage detection mode (first detection mode + second detection mode) based on different threshold values ​​and judging two different threshold values ​​(initial threshold value + advanced threshold value) with opposite logic, the lighting device 1 replaces the initial threshold value with the advanced threshold value after the light module 11 is started, and the advanced threshold value can take into account the factor of the light emitted by the light module 11 itself, and is not limited to the initial threshold value. Therefore, the lighting device 1 can effectively reduce the self-excitation phenomenon, making the lighting device 1 more energy-saving and power-saving.

[0040] In addition, in this embodiment, the control module 13 of the lighting device 1 turns off the light module 11 when the light detection signal Ds is greater than the advanced threshold value, and re-executes the first detection mode to regenerate the initial threshold value. In this way, the regenerated initial threshold value can be more consistent with the current ambient brightness, so that the adaptability of the lighting device 1 is greatly improved.

[0041] In addition, in this embodiment, the control module 13 of the lighting device 1 can subtract the error constant from the first average value to calculate the initial threshold value, and add the error constant to the second average value to calculate the advanced threshold value. The above calculation mechanism adjusts the initial threshold value and the advanced threshold value through the error constant, so that the lighting device 1 is less likely to produce self-excitation due to environmental factors. Therefore, the performance of the lighting device 1 can be greatly improved, and it can be more energy-saving and power-saving.

[0042] Furthermore, in this embodiment, the lighting device 1 can effectively reduce the self-excitation phenomenon caused by environmental factors through the above-mentioned two-stage detection mode. Therefore, the lighting device 1 does not need to significantly change the original structural design, nor does it need to use a combination of the light detection module 12 and the infrared detection module. Therefore, the manufacturing cost of the lighting device 1 can be reduced, making the lighting device 1 more widely used.

[0043] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device with an anti-self-laser sensing control mechanism according to this embodiment should still be included in the patent scope of the present invention.

[0044] See also Figure 3 , which is a schematic diagram of the structure of the lighting device with the anti-self-laser sensing control mechanism of the first embodiment of the present invention. As shown in the figure, the lighting device 1 can be a lamp tube, which also includes two end caps 14 and a tube body 15, and also includes the functional modules of the above-mentioned embodiments.

[0045] The two end caps 14 are respectively disposed at the two ends of the tube body 15. The light detection module 12 is disposed in one of the end caps 14. The end cap 14 includes a cover body 141, and the haze of the cover body 141 is greater than the haze of the transparent material.

[0046] The design of the cover 141 can reduce the sensitivity of the light detection module 12, thereby increasing the detection threshold of the light detection module 12. Therefore, the light detection module 12 can use a photosensitive component with a smaller light detection amount to detect a larger light intensity change. The cover 141 can be made of plastic or glass, and the structure of the cover 141 can also be changed according to actual needs.

[0047] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device with an anti-self-laser sensing control mechanism according to this embodiment should still be included in the patent scope of the present invention.

[0048] See also Figure 4 , which is a flow chart of the anti-self-laser sensing control method of the second embodiment of the present invention. As shown in the figure, the anti-self-laser sensing control method of this embodiment includes the following steps:

[0049] Step S41 : executing a first detection mode to calculate a first average value of the light detection signal Ds of the light detection module 12 within a first time window.

[0050] Step S42: Calculate an initial threshold value according to the first average value.

[0051] Step S43 : activating the light emitting module 11 when the first time window has passed and the light detection signal Ds is less than the initial threshold value.

[0052] Step S44 : executing the second detection mode to calculate a second average value of the light detection signal Ds within a second time window after the light emitting module 11 is turned on.

[0053] Step S45: Calculate an advanced threshold value according to the second average value to replace the initial threshold value.

[0054] Step S46 : turning off the light emitting module 11 when the light detection signal Ds is greater than the advanced threshold.

[0055] Step S47: re-execute the first detection mode.

[0056] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the anti-self-laser sensing control method of this embodiment should still be included in the patent scope of the present invention.

[0057] Although the steps of the method described in the present invention are shown and described in a particular order, the order of operation of each method can be changed, and some steps can be performed in a reverse order, or some steps are also performed simultaneously with other steps. In another embodiment, different steps can be implemented in an intermittent and / or alternating manner.

[0058] It is worth mentioning that the existing lighting device 1 is usually provided with a light detection module 12 to detect ambient light and control the lighting device 1 according to the detection result. However, the light detection module 12 may be self-excited due to environmental factors and / or the light emitted by the lighting device 1 itself, so that the lighting device 1 is always kept in the on state. The lighting device 1 may also be repeatedly switched on and off due to self-excitation. In contrast, according to the first embodiment and the second embodiment of the present invention, the lighting device 1 includes a light emitting module 11, a light detection module 12 and a control module 13. The light detection module 12 generates a light detection signal Ds. The control module 13 controls the light emitting module 11 according to the light detection signal Ds. The control module 13 executes a first detection mode to calculate a first average value of the light detection signal Ds within a first time window, and calculates an initial threshold value according to the first average value. The control module 13 activates the light emitting module 11 after the first time window and when the light detection signal Ds is less than the initial threshold value. The control module 13 executes the second detection mode to calculate the second average value of the light detection signal Ds in the second time window after the light module 11 is activated, and calculates the advanced threshold value based on the second average value to replace the initial threshold value. The control module 13 turns off the light module 11 when the light detection signal Ds is greater than the advanced threshold value. Through the above-mentioned two-stage detection mode (first detection mode + second detection mode), the lighting device 1 replaces the initial threshold value with the advanced threshold value after the light module 11 is activated, and the advanced threshold value can take into account the factor of the light emitted by the light module 11 itself, and is not limited to the initial threshold value. Therefore, the lighting device 1 can effectively reduce the self-excitation phenomenon, making the lighting device 1 more energy-saving and power-saving.

[0059] According to the first and second embodiments of the present invention, the control module 13 of the lighting device 1 turns off the light module 11 when the light detection signal Ds is greater than the advanced threshold value, and re-executes the first detection mode to regenerate the initial threshold value. In this way, the regenerated initial threshold value can be more consistent with the current ambient brightness, so that the adaptability of the lighting device 1 is greatly improved.

[0060] According to the first and second embodiments of the present invention, the control module 13 of the lighting device 1 can subtract the error constant from the first average value to calculate the initial threshold value, and add the error constant to the second average value to calculate the advanced threshold value. The above calculation mechanism adjusts the initial threshold value and the advanced threshold value through the error constant, so that the lighting device 1 is less likely to produce self-excitation due to environmental factors. Therefore, the performance of the lighting device 1 can be greatly improved, and it can be more energy-saving and power-saving.

[0061] Furthermore, according to the first and second embodiments of the present invention, the lighting device 1 can effectively reduce the self-excitation phenomenon caused by environmental factors through the above-mentioned two-stage detection mode. Therefore, the lighting device 1 does not need to significantly change the original structural design, nor does it need to use a combination of the light detection module 12 and the infrared detection module. Therefore, the manufacturing cost of the lighting device 1 can be reduced, making the lighting device 1 more widely used.

[0062] In addition, according to the first and second embodiments of the present invention, the light detection module 12 of the lighting device 1 can detect light through the cover 141 to generate a light detection signal Ds, and the haze of the cover 141 is greater than the haze of the transparent material. The design of the cover 141 can reduce the sensitivity of the light detection module 12, thereby increasing the detection threshold of the light detection module 12. Therefore, the light detection module 12 can use a photosensitive component with a smaller light detection amount to detect a larger light intensity change. Therefore, the manufacturing cost of the lighting device 1 can be further reduced, so that the lighting device 1 can be more widely used.

[0063] In addition, according to the first and second embodiments of the present invention, the design of the lighting device 1 is simple, and the self-excitation phenomenon caused by environmental factors can be effectively reduced through the above-mentioned two-stage detection mode. Therefore, the lighting device 1 can achieve the desired effect under the premise of reducing costs, so that the practicality of the lighting device 1 is greatly improved. Therefore, the lighting device 1 can meet the needs of different applications.

[0064] Furthermore, according to the first and second embodiments of the present invention, the lighting device 1 can be applied to various intelligent applications (such as smart homes, smart parking lots, smart offices, etc.), and can realize the functions of these intelligent applications to meet the needs of these intelligent applications. Therefore, the lighting device 1 can meet the trend of future development. From the above, it can be seen that the lighting device 1 with an anti-self-laser sensing control mechanism according to the embodiment of the present invention can indeed achieve excellent technical effects.

[0065] See also Figure 5 , which is a flow chart of the anti-self-laser sensing control method of the third embodiment of the present invention. As shown in the figure, the anti-self-laser sensing control method of this embodiment includes the following steps:

[0066] Step S51 : Execute the first detection mode to calculate a first average value of the light detection signal Ds of the light detection module 12 within a first time window, and then proceed to step S52 .

[0067] Step S52: Calculate an initial threshold value according to the first average value, and proceed to step S53.

[0068] Step S53: Compare the light detection signal Ds with the initial threshold value, and proceed to step S54.

[0069] Step S54: determine whether the light detection signal Ds is less than the initial threshold value; if so, proceed to step S55; if not, return to step S53.

[0070] Step S55: Start the light emitting module 11 and proceed to step S56.

[0071] Step S56 : Execute the second detection mode to calculate the second average value of the light detection signal Ds in the second time window after the light emitting module 11 is turned on, and then proceed to step S57 .

[0072] Step S57: Calculate an advanced threshold value according to the second average value to replace the initial threshold value, and then proceed to step S58.

[0073] Step S58: Compare the light detection signal Ds with the advanced threshold value, and proceed to step S59.

[0074] Step S59: Determine whether the light detection signal Ds is greater than the advanced threshold value; if so, proceed to step S60; if not, return to step S58.

[0075] Step S60: turn off the light emitting module 11 and return to step S51.

[0076] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made according to the anti-self-laser sensing control method of this embodiment should still be included in the patent scope of the present invention.

[0077] Although the steps of the method described in the present invention are shown and described in a particular order, the order of operation of each method can be changed, and some steps can be performed in a reverse order, or some steps are also performed simultaneously with other steps. In another embodiment, different steps can be implemented in an intermittent and / or alternating manner.

[0078] In summary, according to the first embodiment, the second embodiment and the third embodiment of the present invention, the lighting device 1 includes a light emitting module 11, a light detection module 12 and a control module 13. The light detection module 12 generates a light detection signal Ds. The control module 13 controls the light emitting module 11 according to the light detection signal Ds. The control module 13 executes a first detection mode to calculate a first average value of the light detection signal Ds in a first time window, and calculates an initial threshold value according to the first average value. The control module 13 activates the light emitting module 11 after the first time window has passed and the light detection signal Ds is less than the initial threshold value. The control module 13 executes a second detection mode to calculate a second average value of the light detection signal Ds in a second time window after the light emitting module 11 is activated, and calculates an advanced threshold value according to the second average value to replace the initial threshold value. The control module 13 turns off the light emitting module 11 when the light detection signal Ds is greater than the advanced threshold value. Through the above two-stage detection mode (first detection mode + second detection mode), the lighting device 1 replaces the initial threshold value with the advanced threshold value after the light module 11 is started, and the advanced threshold value can take into account the factor of the light emitted by the light module 11 itself, and is not limited to the initial threshold value. Therefore, the lighting device 1 can effectively reduce the self-excitation phenomenon, making the lighting device 1 more energy-saving and power-saving.

[0079] According to the first, second and third embodiments of the present invention, the control module 13 of the lighting device 1 turns off the light module 11 when the light detection signal Ds is greater than the advanced threshold value, and re-executes the first detection mode to regenerate the initial threshold value. In this way, the regenerated initial threshold value can be more consistent with the current ambient brightness, so that the adaptability of the lighting device 1 is greatly improved.

[0080] According to the first embodiment, the second embodiment and the third embodiment of the present invention, the control module 13 of the lighting device 1 can subtract the error constant from the first average value to calculate the initial threshold value, and add the error constant to the second average value to calculate the advanced threshold value. The above calculation mechanism adjusts the initial threshold value and the advanced threshold value through the error constant, so that the lighting device 1 is less likely to produce self-excitation due to environmental factors. Therefore, the performance of the lighting device 1 can be greatly improved, and it can be more energy-saving and power-saving.

[0081] Furthermore, according to the first, second and third embodiments of the present invention, the lighting device 1 can effectively reduce the self-excitation phenomenon caused by environmental factors through the above-mentioned two-stage detection mode. Therefore, the lighting device 1 does not need to significantly change the original structural design, nor does it need to use a combination of the light detection module 12 and the infrared detection module. Therefore, the manufacturing cost of the lighting device 1 can be reduced, making the lighting device 1 more widely used.

[0082] In addition, according to the first embodiment, the second embodiment and the third embodiment of the present invention, the light detection module 12 of the lighting device 1 can detect light through the cover 141 to generate a light detection signal Ds, and the haze of the cover 141 is greater than the haze of the transparent material. The design of the cover 141 can reduce the sensitivity of the light detection module 12, so that the detection threshold of the light detection module 12 is increased. Therefore, the light detection module 12 can use a photosensitive component with a smaller light detection amount to detect a larger light intensity change. Therefore, the manufacturing cost of the lighting device 1 can be further reduced, so that the lighting device 1 can be more widely used.

[0083] In addition, according to the first embodiment, the second embodiment and the third embodiment of the present invention, the design of the lighting device 1 is simple, and the self-excitation phenomenon caused by environmental factors can be effectively reduced through the above-mentioned two-stage detection mode. Therefore, the lighting device 1 can achieve the desired effect under the premise of reducing the cost, so that the practicality of the lighting device 1 is greatly improved. Therefore, the lighting device 1 can meet the needs of different applications.

[0084] Furthermore, according to the first embodiment, the second embodiment and the third embodiment of the present invention, the lighting device 1 can be applied to various smart applications (such as smart homes, smart parking lots, smart offices, etc.), and can realize the functions of these smart applications to meet the requirements of these smart applications. Therefore, the lighting device 1 can meet the trend of future development.

[0085] It should be noted that, although the above embodiments have been described in this article, the scope of patent protection of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the patent of the present invention.

Claims

1. A lighting device with an anti-self-laser sensing control mechanism, characterized in that: include: Light emitting module; A light detection module, used for generating a light detection signal; as well as A control module, used for controlling the light emitting module according to the light detection signal; The control module is used to execute a first detection mode to calculate a first average value of the light detection signal within a first time window, and calculate an initial threshold value according to the first average value. The control module is used to activate the light emitting module when the first time window has passed and the light detection signal is less than the initial threshold value. The control module is used to execute a second detection mode to calculate a second average value of the light detection signal within a second time window after the light emitting module is activated, and calculate an advanced threshold value according to the second average value to replace the initial threshold value.

2. The lighting device with an anti-self-laser sensing control mechanism as claimed in claim 1, characterized in that: The control module is used for turning off the light emitting module and re-executing the first detection mode when the light detection signal is greater than the advanced threshold value.

3. The lighting device with an anti-self-laser sensing control mechanism as claimed in claim 1, characterized in that: The control module is used for subtracting an error constant from the first average value to calculate the initial threshold value.

4. The lighting device with an anti-self-laser sensing control mechanism as claimed in claim 1, characterized in that: The control module is used for adding an error constant to the second average value to calculate the advanced threshold value.

5. The lighting device with an anti-self-laser sensing control mechanism as claimed in claim 1, characterized in that: The light detection module detects light through the cover to generate the light detection signal, and the haze of the cover is greater than the haze of the transparent material.

6. A method for preventing self-laser sensing control, characterized in that: include: Executing a first detection mode to calculate a first average value of a light detection signal of the light detection module within a first time window; Calculating an initial threshold value according to the first average value; After the first time window has passed and the light detection signal is less than the initial threshold value, the light emitting module is activated; executing a second detection mode to calculate a second average value of the light detection signal within a second time window after the light emitting module is activated; and An advanced threshold value is calculated according to the second average value to replace the initial threshold value.

7. The anti-self-laser sensing control method according to claim 6, characterized in that: Also includes: Turning off the light emitting module when the light detection signal is greater than the advanced threshold value; as well as The first detection mode is re-executed.

8. The anti-self-laser sensing control method according to claim 6, characterized in that: The step of calculating the initial threshold value according to the first average value comprises: The initial threshold value is calculated by subtracting an error constant from the first average value.

9. The anti-self-laser sensing control method according to claim 6, characterized in that: The step of calculating the advanced threshold value according to the second average value comprises: The second average value is added with an error constant to calculate the advanced threshold value.

10. The anti-self-laser sensing control method according to claim 6, characterized in that: The light detection module detects light through the cover to generate the light detection signal, and the haze of the cover is greater than the haze of the transparent material.

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