CN110567498A - Signal processing method of self-adaptive microwave inductor - Google Patents
Signal processing method of self-adaptive microwave inductor Download PDFInfo
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- CN110567498A CN110567498A CN201810568071.XA CN201810568071A CN110567498A CN 110567498 A CN110567498 A CN 110567498A CN 201810568071 A CN201810568071 A CN 201810568071A CN 110567498 A CN110567498 A CN 110567498A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/48—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means
Abstract
the invention provides a signal processing method of a self-adaptive microwave inductor, which comprises the following steps: setting a program; signal acquisition; calculating the spectral energy; judging a threshold; and setting a judgment threshold. The microwave sensor with the self-adaptive sensitivity setting does not need to be provided with a sensitivity adjusting knob, reduces the product cost, basically eliminates the product consistency difference caused by the interference of a microwave head and the environment, improves the product reliability, reduces the trouble in practical use, can better meet the practical requirement because the sensitivity is automatically adjusted according to the practical use condition, ensures that the sensitivity of the sensor is more reasonable, and provides a new sensitivity adjusting method for the intelligent lighting field.
Description
Technical Field
the invention discloses a signal processing method of a self-adaptive microwave inductor, and belongs to the technical field of microwave inductors.
background
The microwave inductor used in the automatic illumination field has the advantages that due to the consistency problem of the microwave induction head, under the same software condition, the sensitivity of some products is high, the sensitivity of other products is low, and in addition, in actual use, due to the influence of environmental factors, some inductors are misoperated due to large environmental interference. In the prior art, sensitivity knobs are required to be adjusted to solve the problems of product consistency and environmental interference under common conditions, which undoubtedly increases the circuit cost of products and brings inconvenience to testing and use.
disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a signal processing method of a self-adaptive microwave inductor to solve the problems in the background art, and the signal processing method of the self-adaptive microwave inductor realizes the automatic adjustment of the time delay of a lamp.
in order to achieve the purpose, the invention is realized by the following technical scheme: a signal processing method of an adaptive microwave inductor comprises the following steps:
(1) Program setting: designing a singlechip program; writing a program in a single chip microcomputer, and intelligently controlling the sensitivity of a microwave inductor by using the single chip microcomputer;
(2) signal acquisition: detecting an induction signal every 1 millisecond by a main program of the single chip microcomputer;
(3) Calculating the spectrum energy: after the main program detects the signal, calculating a primary frequency spectrum value every certain time;
(4) and (3) threshold judgment: when the signal spectrum energy is higher than the trigger threshold, judging that the induction signal is effective, triggering a light-up processing program, when the signal spectrum energy is lower than the trigger threshold, judging that the induction signal is ineffective, and accumulating the ineffective spectrum energy to a register;
(5) Setting a judgment threshold: when the sum reaches a certain number of times, the frequency spectrum energy is averaged, and then 20% of the average value is added to serve as a threshold value for signal triggering.
as a preferred embodiment of the invention, the single chip microcomputer with an ADC function is adopted to ensure the accuracy of signal acquisition.
In a preferred embodiment of the present invention, the register is a data register.
as a preferred embodiment of the present invention, the spectral energy is noise spectral energy of a microwave intermediate frequency signal.
As a preferred embodiment of the present invention, the single chip further includes a timer.
The invention has the beneficial effects that:
1. The signal processing method of the self-adaptive microwave sensor can increase 20% as a signal trigger threshold according to the noise spectrum energy of microwave intermediate frequency signals in a period of time, so that the signal trigger threshold is actually changed along with the noise spectrum energy, the trouble caused by high sensitivity of some products and low sensitivity of other products under the same software condition is solved, the noise of each product is different, the induction trigger thresholds are different, the sensitivity can automatically adapt to a microwave head and a use environment, and a sensitivity adjusting knob is not required to be added;
2. The signal processing method of the self-adaptive microwave inductor can effectively reduce the circuit cost and bring great convenience to the test and the use;
3. The microwave inductor with the self-adaptive sensitivity setting does not need to be provided with a sensitivity adjusting knob, so that the product cost is reduced, the product consistency difference caused by the interference of a microwave head and the environment is basically eliminated, the product reliability is improved, the trouble in actual use is reduced, and the sensitivity is automatically adjusted according to the actual use condition, so that the actual requirement can be met, the sensitivity of the inductor is more reasonable, and a new sensitivity adjusting method is provided for the intelligent lighting field.
Drawings
Fig. 1 is a schematic structural diagram of a signal processing method of an adaptive microwave sensor according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the present invention provides a technical solution: a signal processing method of an adaptive microwave inductor comprises the following steps:
(1) program setting: designing a singlechip program; writing a program in a single chip microcomputer, and intelligently controlling the sensitivity of a microwave inductor by using the single chip microcomputer;
(2) Signal acquisition: detecting an induction signal every 1 millisecond by a main program of the single chip microcomputer;
(3) Calculating the spectrum energy: after the main program detects the signal, calculating a primary frequency spectrum value every certain time;
(4) and (3) threshold judgment: when the signal spectrum energy is higher than the trigger threshold, judging that the induction signal is effective, triggering a light-up processing program, when the signal spectrum energy is lower than the trigger threshold, judging that the induction signal is ineffective, and accumulating the ineffective spectrum energy to a register;
(5) Setting a judgment threshold: when the sum reaches a certain number of times, the frequency spectrum energy is averaged, and then 20% of the average value is added to serve as a threshold value for signal triggering.
As a preferred embodiment of the invention, the single chip microcomputer with an ADC function is adopted to ensure the accuracy of signal acquisition.
In a preferred embodiment of the present invention, the register is a data register.
as a preferred embodiment of the present invention, the spectral energy is noise spectral energy of a microwave intermediate frequency signal.
As a preferred embodiment of the present invention, the single chip further includes a timer.
The working principle is as follows: designing a program in a singlechip, utilizing the sensitivity of a microwave sensor intelligently controlled by the singlechip, detecting an induction signal every 1 millisecond by a main program of the singlechip, calculating a frequency spectrum value every a certain time after the main program detects the signal, judging that the induction signal is effective when the signal frequency spectrum energy is higher than a trigger threshold, triggering a light-up processing program, judging that the induction signal is invalid when the signal frequency spectrum energy is lower than the trigger threshold, accumulating the invalid frequency spectrum energy into a register, averaging the frequency spectrum energy when accumulating for a certain number of times, increasing 20 percent as a threshold value of signal trigger, adaptively setting the microwave sensor without setting a sensitivity adjusting knob, reducing the product cost, basically eliminating the product consistency difference caused by microwave heads and environmental interference, improving the product reliability and reducing the trouble in practical use, because the sensitivity is automatically adjusted according to the actual use condition, the sensitivity can better meet the actual requirement, the sensitivity of the sensor is more reasonable, and a new sensitivity adjusting method is provided for the intelligent illumination field.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. a signal processing method of an adaptive microwave inductor is characterized by comprising the following steps:
(1) program setting: designing a singlechip program; writing a program in a single chip microcomputer, and intelligently controlling the sensitivity of a microwave inductor by using the single chip microcomputer;
(2) Signal acquisition: detecting an induction signal every 1 millisecond by a main program of the single chip microcomputer;
(3) Calculating the spectrum energy: after the main program detects the signal, calculating a primary frequency spectrum value every certain time;
(4) and (3) threshold judgment: when the signal spectrum energy is higher than the trigger threshold, judging that the induction signal is effective, triggering a light-up processing program, when the signal spectrum energy is lower than the trigger threshold, judging that the induction signal is ineffective, and accumulating the ineffective spectrum energy to a register;
(5) Setting a judgment threshold: when the sum reaches a certain number of times, the frequency spectrum energy is averaged, and then 20% of the average value is added to serve as a threshold value for signal triggering.
2. The adaptive microwave inductor signal processing method according to claim 1, wherein: the singlechip with the ADC function is adopted, so that the accuracy of signal acquisition is ensured.
3. the adaptive microwave inductor signal processing method according to claim 1, wherein: the register is a data register.
4. the adaptive microwave inductor signal processing method according to claim 1, wherein: the frequency spectrum energy is the noise frequency spectrum energy of the microwave intermediate frequency signal.
5. the adaptive microwave inductor signal processing method according to claim 1, wherein: the single chip microcomputer further comprises a timer.
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| CN201810568071.XA CN110567498A (en) | 2018-06-05 | 2018-06-05 | Signal processing method of self-adaptive microwave inductor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114375085A (en) * | 2022-01-11 | 2022-04-19 | 广州蜜蜂生态科技有限公司 | Control method and device of wardrobe lamp |
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| CN104570144A (en) * | 2013-10-24 | 2015-04-29 | 展讯通信（上海）有限公司 | Self-adaptive induction threshold adjusting system and method for proximity sensor |
| CN104678828A (en) * | 2013-12-03 | 2015-06-03 | 南充鑫源通讯技术有限公司 | Microwave induction control method and microwave induction control device |
| CN105101506A (en) * | 2014-04-16 | 2015-11-25 | 东莞巨扬电器有限公司 | Lamp with passive human body infrared sensing device and adjusting method thereof |
| CN205648144U (en) * | 2015-09-13 | 2016-10-12 | 苏州灿源照明设备有限公司 | Microwave response illumination control device |
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2018
- 2018-06-05 CN CN201810568071.XA patent/CN110567498A/en active Pending
Patent Citations (5)
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| CN101951709A (en) * | 2010-08-17 | 2011-01-19 | 广州市番禺奥莱照明电器有限公司 | Microwave infrared sensing control device and signal processing method thereof |
| CN104570144A (en) * | 2013-10-24 | 2015-04-29 | 展讯通信（上海）有限公司 | Self-adaptive induction threshold adjusting system and method for proximity sensor |
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| CN105101506A (en) * | 2014-04-16 | 2015-11-25 | 东莞巨扬电器有限公司 | Lamp with passive human body infrared sensing device and adjusting method thereof |
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| CN114375085A (en) * | 2022-01-11 | 2022-04-19 | 广州蜜蜂生态科技有限公司 | Control method and device of wardrobe lamp |
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Application publication date: 20191213 |