WO2015081498A1 - Microwave induction control method and apparatus - Google Patents

Microwave induction control method and apparatus Download PDF

Info

Publication number
WO2015081498A1
WO2015081498A1 PCT/CN2013/088445 CN2013088445W WO2015081498A1 WO 2015081498 A1 WO2015081498 A1 WO 2015081498A1 CN 2013088445 W CN2013088445 W CN 2013088445W WO 2015081498 A1 WO2015081498 A1 WO 2015081498A1
Authority
WO
WIPO (PCT)
Prior art keywords
intermediate frequency
doppler radar
radar probe
amplitude value
frequency signal
Prior art date
Application number
PCT/CN2013/088445
Other languages
French (fr)
Chinese (zh)
Inventor
刘仪
Original Assignee
南充鑫源通讯技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南充鑫源通讯技术有限公司 filed Critical 南充鑫源通讯技术有限公司
Priority to PCT/CN2013/088445 priority Critical patent/WO2015081498A1/en
Publication of WO2015081498A1 publication Critical patent/WO2015081498A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems

Definitions

  • the present invention relates to the field of microwave sensor application technologies, and in particular, to a microwave induction control method and apparatus.
  • the technical problem to be solved by the present invention is to provide a microwave induction control method and apparatus capable of preventing moisture, electric shock, energy saving, and power saving in view of the above-mentioned drawbacks of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem is to construct a microwave induction control method for controlling the conduction or disconnection of the electrical power source by using the microwave induction control device, and the microwave induction control device comprises: a Dopply electrically connected in sequence a radar probe, a mixer, a signal amplifier, and a main control module, the main control module includes a single chip processing signal and a relay electrically connected to the single chip and the electrical power source of the electrical device, and the method comprises the following steps:
  • step S1 using pulse microwave signal to monitor real-time whether there is any moving object in the predetermined detection range, if yes, proceed to step S2, if not, repeat step S1 ;
  • step S2 using continuous wave or pulsed microwave signal to determine whether the moving object belongs to effective human activity, and if yes, proceed to step S3 Otherwise, return to step S1;
  • step S4 using a pulsed microwave signal to monitor in real time whether there is a movement of the human body within the predetermined detection range, and if yes, proceed to step S5. Otherwise repeat step S4;
  • step S5 The continuous wave or the pulsed microwave signal is used to determine whether the movement of the human body is an effective action. If not, the electrical power source maintains an on state, and if yes, proceeds to step S6;
  • the electrical power source enters a pre-closed state, and in the pre-closed state, a continuous wave or a pulsed microwave signal is used to determine whether there is other human activity in the detection range within a predetermined pre-close period, and if not, the single-chip control station The relay is turned off, thereby turning off the electrical power, otherwise it returns to the step S4.
  • the step S4 The method includes the following steps: the microwave sensing control device is in a standby state, and the single chip microcomputer controls the Doppler radar probe to transmit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe reflects back at a predetermined frequency
  • the intermediate frequency signal converted by the mixer is sampled, and the amplitude value of the intermediate frequency signal is read. Am, and compares the amplitude value Am with a preset preset value M. If Am ⁇ M, it is determined that there is a movement of the human body, and the process proceeds to step S5, otherwise step S4 is repeated.
  • the step S5 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a continuous microwave signal to a predetermined detection range, and the Doppler radar probe performs the intermediate frequency signal reflected back by the mixer at a predetermined sampling frequency.
  • the intermediate frequency signals are grouped, and an average value of the amplitude values of each group of intermediate frequency signals is calculated; if multiple amplitude values appear in the time period are greater than the preset value
  • the average value of the amplitude value of the intermediate frequency signal or the grouped intermediate frequency signal of M is not a continuous downward trend, and the action of the human body leaving is an invalid action, and the electrical power source maintains the conduction state, otherwise proceeds to step S6.
  • the step S1 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe performs the reflected frequency-converted intermediate frequency signal at a predetermined frequency. Sampling, reading the amplitude value of the intermediate frequency signal An, and compares the amplitude value An with a set threshold N. If An>N, the process proceeds to step S2, otherwise, step S1 is repeated.
  • the step S2 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency.
  • the intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value persists within the first preset delay time, the amplitude value is greater than the threshold value. If the moving medium belongs to the effective human body activity, the process proceeds to step S3, otherwise returns to step S1.
  • the step S5 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a continuous wave or a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe is reflected back at a predetermined sampling frequency and is frequency-converted by the mixer.
  • the intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read until the amplitude value of the intermediate frequency signal falls within a noise range, and the standby state is restored after the second preset delay time, and at the same time, the single chip microcomputer is in chronological order And grouping the intermediate frequency signals, and calculating an average value of amplitude values of each group of intermediate frequency signals; if multiple amplitude values appear in the time period are greater than the preset value
  • the average value of the amplitude value of the intermediate frequency signal or the grouped intermediate frequency signal of M is not a continuous downward trend, and the action of the human body leaving is an invalid action, and the electrical power source maintains the conduction state, otherwise proceeds to step S6.
  • the step S6 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency.
  • the intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value is not detected again in the predetermined sampling period, the amplitude value is greater than the preset value.
  • the single chip microcomputer controls the relay to be turned off, and the electrical power of the electrical appliance is turned off.
  • the step S1 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe performs the reflected frequency-converted intermediate frequency signal at a predetermined frequency. Sampling, reading the amplitude value of the intermediate frequency signal An, and compares the amplitude value An with a set threshold N. If An>N, the process proceeds to step S2, otherwise, step S1 is repeated.
  • the step S2 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency.
  • the intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value persists within the first preset delay time, the amplitude value is greater than the threshold value. If the moving medium belongs to the effective human body activity, the process proceeds to step S3, otherwise returns to step S1.
  • the step S6 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency.
  • the intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value is not detected again in the predetermined sampling period, the amplitude value is greater than the preset value.
  • the single chip microcomputer controls the relay to be turned off, and the electrical power of the electrical appliance is turned off.
  • the invention also provides a microwave induction control device for controlling the conduction or disconnection of an electrical power source, the microwave induction control device comprising a Doppler radar probe, a mixer, a signal amplifier, and a main control which are electrically connected in sequence a module, the main control module includes a single chip processing signal and a relay electrically connected to the single chip microcomputer and the electrical power source of the electrical appliance, wherein the Doppler radar probe is used for real-time monitoring of a moving object within a predetermined detection range
  • the single chip is used to determine whether the moving object is an effective human activity when the Doppler radar probe detects a moving object in the detection range, and control the electrical power source when determining that the moving object is a human body Turning on; the Doppler radar probe is further configured to monitor in real time whether there is a movement of the human body in the detection range; and the single chip microcomputer is further configured to judge when the Doppler radar probe detects the movement of the human body to leave Determining whether the movement of the human body is an
  • the signal processing method of the microwave induction control device used in the present invention uses the Doppler radar principle to detect the moving target, thereby achieving the purpose of controlling the electrical power switch, and does not require manual operation of the mechanical switch, and does not cause mechanical wear and fatigue. Damage, extend the service life of the electrical power switch, in addition, the microwave induction control device of the present invention can be installed inside the electric appliance, adopts a closed structure, which can prevent moisture and electric shock, and fundamentally solves the problem that the child operates the electric appliance manually. In the case of a power switch, there is a risk of electric shock;
  • the signal processing method of the microwave induction control device used in the present invention can determine whether there is a human body leaving motion within the detection range of the Doppler radar probe, and judge that the human body leaves the detection range of the Doppler radar probe and no one in the detection range
  • the electrical switch is automatically turned off, it not only saves energy and saves electricity, but also avoids the problem of fire caused by the electric appliance being too long and the heat is too large when the person forgets to turn off the electrical power supply;
  • no moving object in the detection range adopts pulse microwave signal for on-site monitoring, and when there is a moving object in the detection range, continuous wave or pulse microwave signal is used for on-site monitoring, and the power consumption is small, and can be made when installed and used on the electric appliance.
  • the standby power consumption of the electric appliance is greatly reduced, thereby further saving energy and saving electricity.
  • FIG. 1 is a schematic structural view of an embodiment of a microwave induction control device of the present invention
  • FIG. 2 is a flow chart of an embodiment of a microwave induction control method of the present invention.
  • FIG 3 is a specific working flow chart of step S4 shown in Figure 2;
  • FIG 4 is a specific working flow chart of step S5 shown in Figure 2;
  • FIG. 5 is a specific working flow chart of the step S1 shown in Figure 2;
  • Figure 6 is a waveform diagram showing changes in the amplitude value of a person leaving the detection range when a continuous wave is used;
  • Fig. 7 is a waveform diagram showing changes in amplitude values when a human body moves within a detection range when a continuous wave is used.
  • the microwave sensing control device of the present invention comprises a Doppler radar probe 1, a mixer 2, a signal amplifier 3, and a main control module 4, which are electrically connected in sequence, and the main control module 4 includes a signal for processing.
  • the action of leaving the single chip 5 is also used to determine whether the action of the human body leaving is an effective action when the Doppler radar probe 1 detects the movement of the human body, and controls the relay 6 to be pulled or disconnected according to the judgment result, thereby Controlling the turning on or off of the electrical power source.
  • the mixer 2 of the present invention is for mixing the received microwave signal with the microwave signal generated by the local oscillator of the Doppler radar probe and outputting it to the signal amplifier.
  • the Doppler radar probe 1 of the present invention is controlled by the single chip microcomputer 5, and when the detection range is unmanned, the single chip microcomputer 5 controls the Doppler The radar probe transmits a pulsed microwave signal to the set detection range. When a moving object is sensed, the single chip microcomputer 5 controls the Doppler probe to emit a continuous wave or a pulsed microwave signal within a set detection range, which can be effective. Reduce power consumption.
  • the microwave induction control method provided in the first embodiment of the present invention includes the following steps:
  • step S1 Initializing the single-chip microcomputer 5 in the main control module 4, and then supplying power to the Doppler radar probe 1, the Doppler radar probe 1 enters a working state, transmitting a pulsed microwave signal to the detection range, and real-time monitoring the Doppler radar probe 1 whether there is a moving object in the detection range, if yes, proceed to step S2, if not, repeat step S1;
  • the Doppler probe transmits continuous wave or pulsed microwave signal to the detection range to determine whether the moving object belongs to effective human activity.
  • the effective human activity is mainly to detect whether someone enters the detection range of the Doppler radar probe 1. If yes, proceed to step S3, otherwise return to step S1;
  • the single-chip microcomputer 5 controls the relay 6 to pull in, so that the electrical power source electrically connected with the relay 6 is turned on;
  • Doppler radar probe 1 transmits a pulsed microwave signal to the detection range, real-time monitoring whether there is a human body leaving motion within the detection range, if yes, proceeds to step S5, otherwise repeats step S4;
  • step S5 the Doppler probe transmits a continuous wave or a pulsed microwave signal to the detection range to determine whether the movement of the human body is effective, and if not, the electrical power source maintains the conduction state, and if yes, proceeds to step S6;
  • the electrical power supply enters a pre-closed state.
  • the single-chip microcomputer 5 controls the Doppler probe to emit a continuous wave or pulsed microwave signal in the detection range, and monitors whether there is other human activity in the detection range within a predetermined pre-close period. Here, it is mainly to detect whether there is still someone left in the detection range of the Doppler radar probe 1. If not, the single-chip microcomputer 5 controls the relay 6 to be turned off, thereby turning off the electrical power supply, otherwise returns to step S4.
  • the Doppler radar probe 1 is a microwave moving object detector designed by the Doppler radar principle, and the microwave sensing distance is 0.3-18 The meter is adjustable, the microwave signal collected by the Doppler radar probe 1 is analyzed and processed by the single chip microcomputer 5, and the reliability is high.
  • the Doppler radar probe 1 used in the present invention is a non-contact type detecting device, and can be installed in a certain thickness of plastic.
  • the non-metallic outer casing, such as glass and wood, enables the product to adopt a closed structure, which can prevent moisture and electric shock, and fundamentally solve the problem that the child is liable to generate electric shock when manually operating the power switch.
  • FIG. 3 is a specific working flow chart of step S4 shown in FIG. 2
  • FIG. 4 is a specific working flow chart of step S4 shown in FIG. 2.
  • the method in this embodiment may further include the following steps:
  • the microwave induction control device enters a standby state, and the single chip microcomputer 5 controls the Doppler radar probe 1 to emit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe 1 converts the reflected mixer 2 at a predetermined frequency.
  • the intermediate frequency signal is sampled, and the amplitude value Am of the collected intermediate frequency signal is read (where m is 1, 2, 3 ...... The natural number, Am refers to the maximum value of the amplitude value of the intermediate frequency signal sampled in the mth period.
  • the predetermined frequency is sampled every 1 millisecond, with a period of 300 milliseconds (of course here)
  • the period can also select different values)
  • Am is the maximum value of the amplitude value of the intermediate frequency signal in the period;
  • the amplitude value Am of the above-mentioned acquisition is compared with a preset preset value M. If Am ⁇ M, it is determined that there is a movement of the human body, and the process proceeds to step S5, otherwise, the process returns to step S4.
  • the preset value M here is about 1.5V, which can also be set by itself.
  • the preset value M is 1.5V, that is, when the frequency collected in the detection range is between 10HZ-35HZ, When the amplitude value is less than the intermediate frequency signal of 1.5V, it is considered that the action of detecting the human body from the detection range is detected;
  • the single-chip microcomputer 5 controls the Doppler radar probe 1 to emit a continuous wave or a pulsed microwave signal within a predetermined detection range, and the Doppler radar probe 1 reflects the reflected back at a predetermined sampling frequency.
  • the mixer 2 frequency-converted IF signal is sampled (same as above, the predetermined sampling frequency is also sampled every 1 millisecond), and the amplitude value of the IF signal is read. Each time an amplitude value is read, the amplitude value counter is incremented by one until The amplitude value of the IF signal falls within the noise range, and returns to the standby state after the second preset delay time.
  • the noise range means that the amplitude value is less than 0.75V, and the second preset delay time is 2s, that is, until the intermediate frequency signal When the amplitude value drops to 0.75V, it is delayed by 2S. If no IF signal with amplitude value greater than 0.75V is detected during this period, the microwave induction control device automatically enters the standby state.
  • the amplitude value of the intermediate frequency signal is required. When falling within the noise range, it means that there is no moving object in the detection range, that is, the detection range of the person has left the Doppler radar probe 1;
  • the IF signals collected in step S50 are grouped in chronological order, and the average value of the amplitude values of each group of IF signals is calculated, which is set in groups of 300 milliseconds (again, different values can be selected as a group according to requirements) Adding the amplitude values of the intermediate frequency signals collected within 300 milliseconds and dividing by the number of amplitude values read in the amplitude value counter within 300 milliseconds to obtain an average value of the amplitude values of the set of intermediate frequency signals;
  • the intermediate frequency signal with the largest amplitude value in each group is compared with a preset value M. (If the number of samples is less than 300, the amplitude value of the intermediate frequency signal falls within the noise range, and no amplitude value is greater than 1 second. If the IF signal of the noise range appears, the amplitude value of the IF signal that is greater than the noise range is compared with the preset value M, and the number of IF signals whose amplitude value is greater than the preset value M is counted, and the steps are performed.
  • the average values calculated by the grouping in S51 are compared to determine whether it is in a continuous downward trend.
  • step S6 If a plurality of intermediate frequency signals whose amplitude values are greater than the preset value M or the average value of the amplitude values of the grouped intermediate frequency signals do not continuously decrease during the period The trend indicates that the movement of the human body is an invalid action, and the electrical power switch remains in the closed state, otherwise proceeds to step S6.
  • the waveform shown in Fig. 6 is a waveform diagram of the amplitude value change of the intermediate frequency signal when the person leaves the detection range when using continuous wave detection. It can be seen from the figure that the average value of the amplitude value of the intermediate frequency signal is continuously decreasing. of.
  • the method in this embodiment may further include the following steps with respect to the second embodiment of the present invention:
  • the single-chip microcomputer 5 controls the Doppler radar probe 1 to emit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe 1 samples the reflected intermediate frequency-converted intermediate frequency signal at a predetermined frequency, and reads the The amplitude value An of the intermediate frequency signal (where n is 1, 2, 3 — The natural number, An refers to the maximum value of the amplitude value of the intermediate frequency signal sampled in the nth cycle.
  • the predetermined frequency in this embodiment is sampled every 1 millisecond, with a period of 300 milliseconds (ibid., the period here can be selected) Different values), An is the maximum value of the amplitude value of the intermediate frequency signal in the period;
  • the threshold value N here is about 2V, and can be set by itself.
  • the threshold value N is 2V, that is, when an intermediate frequency signal with an amplitude value greater than 2V is collected in the detection range, it is considered that there is detection. Moving objects enter the detection range;
  • the human activity here mainly detects whether someone enters the detection range of the Doppler radar probe 1.
  • the single-chip microcomputer 5 controls the Doppler radar probe 1 to a predetermined one.
  • the continuous wave or pulsed microwave signal is transmitted within the detection range, and the Doppler radar probe 1 samples the reflected intermediate frequency-converted IF signal and reads it at a predetermined sampling frequency (same as once every 1 millisecond). If the amplitude value of the intermediate frequency signal continues to exist in the first preset delay time, the moving object belongs to the active human activity, and the process proceeds to step S3, otherwise returns to step S1. 0 .
  • the waveform of the amplitude value of the IF signal in the detection range is detected by continuous wave monitoring. It can be seen from the figure that during this time period, the intermediate frequency with large amplitude value persists within the detection range. signal.
  • the first preset delay time in this embodiment is 1 s
  • the frequency range of the intermediate frequency signal converted by the mixer 2 of the Doppler radar probe 1 of different models is also different, for example, 2.4 GHz.
  • Doppler radar probe the frequency of the intermediate frequency signal generated by the corresponding human motion is 1HZ-8HZ; the Doppler radar probe of 5.8GHZ, the frequency range of the intermediate frequency signal corresponding to human motion is 5.5HZ-20HZ; Doppler of 24GHZ
  • the frequency of the IF signal generated by the corresponding human motion is 15HZ-80HZ; in this embodiment, the 10.525GHz Doppler radar probe 1 is used, and the frequency of the intermediate frequency signal generated by the corresponding human motion is 10HZ-35HZ.
  • the moving object is effective human activity, and the same uses other It is also within the scope of the present invention to make the same human motion determination by the microwave Doppler probe of the corresponding frequency band.
  • the following is a method provided in the fourth embodiment of the present invention.
  • the method in this embodiment may further include the following steps.
  • the electrical power switch enters a pre-closed state to determine whether there is other human activity.
  • the single-chip microcomputer 5 controls the Doppler radar probe 1 to emit a continuous wave or a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe 1 is scheduled.
  • the sampling frequency samples the reflected intermediate frequency-converted IF signal (the same as above, the predetermined sampling frequency is also sampled every 1 millisecond), and reads the amplitude value of the IF signal, if the preset sampling During the time period, if the intermediate frequency signal whose amplitude value is greater than the preset value M is not detected again, it is determined that there is no micro-action, and the single-chip microcomputer 5 controls the relay 6 to be turned off, and the electrical power is turned off, otherwise returns to step S4. 0.
  • the preset sampling time period in this embodiment is 5 s.
  • the present invention utilizes the above principle to establish an action system for judging when a person leaves, and can accurately determine the Doppler radar probe 1 Whether there is a movement of the human body within the detection range, and it is judged that the human body leaves the Doppler radar probe 1
  • the detection range is unknown and there is no one in the detection range
  • the electrical power is automatically turned off, which overcomes the defects in the prior art that only the moving object can be detected, and the action of not being able to leave is not only energy saving, power saving, but also avoiding people leaving.
  • the appliance may cause fire problems due to excessive operation and excessive heat.
  • no moving object in the detection range uses the pulse microwave signal for on-site monitoring, and when there is a moving object in the detection range, continuous wave or pulse microwave signal is used for on-site monitoring, which can reduce the static power consumption of the microwave induction control device.
  • the static power consumption of the electric appliance can be made less than when the human body is active within the detection range by using the method provided by the invention.
  • 0.5W the static power consumption of the appliance can be less than 0.8W when there is human activity in the detection range, but in the prior art
  • the standby power consumption of household appliances is generally 10-30W.
  • the annual consumption of electrical appliances is about 10% of the power consumption of household appliances. Therefore, the microwave induction control method and device provided by the invention can greatly reduce the power consumption of the electrical appliance, and achieve the purpose of energy saving and power saving.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A microwave induction control apparatus comprises a Doppler radar probe (1), a frequency mixer (2), a signal amplifier (3), and a main control module (4). The microwave induction control apparatus can be mounted inside an electric appliance, is moistureproof, provides protection against an electric shock, and can greatly reduce the standby power consumption of the electric appliance, thereby achieving the objective of energy saving and electricity saving. Also disclosed is a microwave induction control method. By using the microwave induction control apparatus, the method can establish, by means of a Doppler effect, an action system for determining whether a person enters or leaves away from a field, and can control ON and OFF of a power supply of the electric appliance by recognizing an action of the person entering or leaving away from the field.

Description

一种微波感应控制方法及装置  Microwave induction control method and device 技术领域 Technical field
本发明涉及微波传感器应用技术领域，更具体地说，涉及一种微波感应控制方法及装置。  The present invention relates to the field of microwave sensor application technologies, and in particular, to a microwave induction control method and apparatus.
背景技术 Background technique
随着社会经济的不断进步，人民生活水平逐步提高，电器化产品已经渗透到我们生活的方方面面，同时，电器自动化控制技术已经影响到人们生活的方方面面，目前，声控在电气自动化控制技术中运用非常广泛，但是由于声音传感需要较大的声音才能被其感测，容易产生噪声影响他人，而且也受自然环境的影响容易产生误操作，因此，现今在家庭、机关单位、工厂等日常生活中用电的场所，仍然大量使用到各种机械式开关电器，人们必须手动接通开关提供电源或者关闭开关截断电源，以实现对电器功能的控制。目前，采用的机械式控制开关的方式，在潮湿或者灰尘较多的环境下易产生漏电、老化而失效的问题，特别是小孩在手动操作电源开关的情况下易产生触电危险。 With the continuous advancement of the social economy, the people's living standards have gradually improved, and electrical products have penetrated into every aspect of our lives. At the same time, electrical automation control technology has affected all aspects of people's lives. At present, voice control is very useful in electrical automation control technology. Wide range, but because sound sensing requires a large sound to be sensed, it is easy to produce noise and affect others, and it is also susceptible to misuse by the influence of the natural environment. Therefore, in today's daily life in homes, institutions, factories, etc. In places where electricity is used, various mechanical switchgears are still used in large quantities. One must manually turn on the switch to provide power or turn off the switch to cut off the power supply to control the function of the electrical appliance. At present, the mechanical control switch mode is prone to leakage, aging and failure in a humid or dusty environment, especially in the case of a child manually operating the power switch.
发明内容 Summary of the invention
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种能够防潮、防触电以及节能、节电的微波感应控制方法及装置。 The technical problem to be solved by the present invention is to provide a microwave induction control method and apparatus capable of preventing moisture, electric shock, energy saving, and power saving in view of the above-mentioned drawbacks of the prior art.
本发明解决其技术问题所采用的技术方案是，构造一种微波感应控制方法，利用微波感应控制装置控制电器电源的导通或断开，该微波感应控制装置包括：依次电性连接的多普勒雷达探头、混频器、信号放大器、以及主控模块，所述主控模块包括处理信号的单片机和与所述单片机及所述电器电源电性连接的继电器，该方法包括以下步骤： The technical solution adopted by the present invention to solve the technical problem is to construct a microwave induction control method for controlling the conduction or disconnection of the electrical power source by using the microwave induction control device, and the microwave induction control device comprises: a Dopply electrically connected in sequence a radar probe, a mixer, a signal amplifier, and a main control module, the main control module includes a single chip processing signal and a relay electrically connected to the single chip and the electrical power source of the electrical device, and the method comprises the following steps:
S1 、采用脉冲微波信号实时监测预定的探测范围内有无运动物体，若有则进入步骤 S2 ，若无则重复步骤 S1 ； S1, using pulse microwave signal to monitor real-time whether there is any moving object in the predetermined detection range, if yes, proceed to step S2, if not, repeat step S1 ;
S2 、采用连续波或者脉冲微波信号判断所述运动物体是否属于有效人体活动，若是，则进入步骤 S3 ，否则返回步骤 S1 ； S2, using continuous wave or pulsed microwave signal to determine whether the moving object belongs to effective human activity, and if yes, proceed to step S3 Otherwise, return to step S1;
S3 、单片机控制继电器吸合，使与所述继电器电性连接的电器电源导通； S3 and the single-chip control relay are connected to make the electrical power source electrically connected with the relay conductive;
S4 、采用脉冲微波信号实时监测所述预定探测范围内是否有人体离开的动作，若是则进入步骤 S5 ，否则重复步骤 S4 ； S4, using a pulsed microwave signal to monitor in real time whether there is a movement of the human body within the predetermined detection range, and if yes, proceed to step S5. Otherwise repeat step S4;
S5 、采用连续波或者脉冲微波信号判断所述人体离开的动作是否为有效动作，若否，则所述电器电源维持导通状态，若是，则进入步骤 S6 ； S5 The continuous wave or the pulsed microwave signal is used to determine whether the movement of the human body is an effective action. If not, the electrical power source maintains an on state, and if yes, proceeds to step S6;
S6 、所述电器电源进入预关闭状态，在该预关闭状态下，采用连续波或者脉冲微波信号判断在预定的预关闭时段内探测范围内是否有其他人体活动，若无，则所述单片机控制所述继电器断开，从而关闭所述电器电源，否则返回步骤 S4 。 S6 The electrical power source enters a pre-closed state, and in the pre-closed state, a continuous wave or a pulsed microwave signal is used to determine whether there is other human activity in the detection range within a predetermined pre-close period, and if not, the single-chip control station The relay is turned off, thereby turning off the electrical power, otherwise it returns to the step S4.
在本发明所述的方法中，所述步骤 S4 包括以下步骤：所述微波感应控制装置处于待机状态，所述单片机控制所述多普勒雷达探头向预定的探测范围内发射脉冲微波信号，所述多普勒雷达探头以预定的频率对反射回来的经混频器变频的中频信号进行采样，读取所述中频信号的幅度值 Am, 并将所述幅度值 Am 与一预先设置的预设值 M 比较，若 Am<M ，则判断为有人体离开的动作，进入步骤 S5 ，否则重复步骤 S4 。 In the method of the present invention, the step S4 The method includes the following steps: the microwave sensing control device is in a standby state, and the single chip microcomputer controls the Doppler radar probe to transmit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe reflects back at a predetermined frequency The intermediate frequency signal converted by the mixer is sampled, and the amplitude value of the intermediate frequency signal is read. Am, and compares the amplitude value Am with a preset preset value M. If Am < M, it is determined that there is a movement of the human body, and the process proceeds to step S5, otherwise step S4 is repeated.
在本发明所述的方法中，所述步骤 S5 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射连续微波信号，所述多普勒雷达探头以预定的采样频率对反射回来经混频器变频的中频信号进行采样，读取所述中频信号的幅度值，直到所述中频信号的幅度值降到噪声范围内，并在第二预设延迟时间后恢复待机状态，同时，所述单片机按照时间顺序对所述中频信号进行分组，并计算得出每组中频信号幅度值的平均值；若该时段内出现多个幅度值大于所述预设值 M 的中频信号或者分组中频信号幅度值的平均值不是持续下降趋势，则所述人体离开的动作为无效动作，所述电器电源维持导通状态，否则进入步骤 S6 。 In the method of the present invention, the step S5 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a continuous microwave signal to a predetermined detection range, and the Doppler radar probe performs the intermediate frequency signal reflected back by the mixer at a predetermined sampling frequency. Sampling, reading the amplitude value of the intermediate frequency signal until the amplitude value of the intermediate frequency signal falls within a noise range, and resumes the standby state after the second preset delay time, and simultaneously, the The intermediate frequency signals are grouped, and an average value of the amplitude values of each group of intermediate frequency signals is calculated; if multiple amplitude values appear in the time period are greater than the preset value The average value of the amplitude value of the intermediate frequency signal or the grouped intermediate frequency signal of M is not a continuous downward trend, and the action of the human body leaving is an invalid action, and the electrical power source maintains the conduction state, otherwise proceeds to step S6.
在本发明所述的方法中，所述步骤 S1 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射脉冲微波信号，所述多普勒雷达探头以预定的频率对反射回来的经混频器变频的中频信号进行采样，读取所述中频信号的幅度值 An ，并将所述幅度值 An 与一设置的门限值 N 比较，若 An>N ，则进入步骤 S2 ，否则，重复步骤 S1 。 In the method of the present invention, the step S1 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe performs the reflected frequency-converted intermediate frequency signal at a predetermined frequency. Sampling, reading the amplitude value of the intermediate frequency signal An, and compares the amplitude value An with a set threshold N. If An>N, the process proceeds to step S2, otherwise, step S1 is repeated.
在本发明所述的方法中，所述步骤 S2 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头以预定的采样频率对反射回来的经混频器变频的中频信号进行采样，并读取所述中频信号的幅度值，若在第一预设延迟时间内持续存在幅度值大于所述门限值 N 的中频信号，则所述运动物体属于有效人体活动，进入步骤 S3 ，否则返回步骤 S1 。 In the method of the present invention, the step S2 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency. The intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value persists within the first preset delay time, the amplitude value is greater than the threshold value. If the moving medium belongs to the effective human body activity, the process proceeds to step S3, otherwise returns to step S1.
在本发明所述的方法中，所述步骤 S5 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头以预定的采样频率对反射回来经混频器变频的中频信号进行采样，读取所述中频信号的幅度值，直到所述中频信号的幅度值降到噪声范围内，并在第二预设延迟时间后恢复待机状态，同时，所述单片机按照时间顺序对所述中频信号进行分组，并计算得出每组中频信号幅度值的平均值；若该时段内出现多个幅度值大于所述预设值 M 的中频信号或者分组中频信号幅度值的平均值不是持续下降趋势，则所述人体离开的动作为无效动作，所述电器电源维持导通状态，否则进入步骤 S6 。 In the method of the present invention, the step S5 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a continuous wave or a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe is reflected back at a predetermined sampling frequency and is frequency-converted by the mixer. The intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read until the amplitude value of the intermediate frequency signal falls within a noise range, and the standby state is restored after the second preset delay time, and at the same time, the single chip microcomputer is in chronological order And grouping the intermediate frequency signals, and calculating an average value of amplitude values of each group of intermediate frequency signals; if multiple amplitude values appear in the time period are greater than the preset value The average value of the amplitude value of the intermediate frequency signal or the grouped intermediate frequency signal of M is not a continuous downward trend, and the action of the human body leaving is an invalid action, and the electrical power source maintains the conduction state, otherwise proceeds to step S6.
在本发明所述的方法中，所述步骤 S6 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头以预定的采样频率对反射回来的经混频器变频的中频信号进行采样，并读取所述中频信号的幅度值，若在一预定的采样时间段内，没有再次检测到幅度值大于所述预设值 M 的中频信号时，则判断为无其他人体活动，所述单片机控制所述继电器断开，关闭所述电器电源。 In the method of the present invention, the step S6 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency. The intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value is not detected again in the predetermined sampling period, the amplitude value is greater than the preset value. When the intermediate frequency signal of M is judged to be no other human activity, the single chip microcomputer controls the relay to be turned off, and the electrical power of the electrical appliance is turned off.
在本发明所述的方法中，所述步骤 S1 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射脉冲微波信号，所述多普勒雷达探头以预定的频率对反射回来的经混频器变频的中频信号进行采样，读取所述中频信号的幅度值 An ，并将所述幅度值 An 与一设置的门限值 N 比较，若 An>N ，则进入步骤 S2 ，否则，重复步骤 S1 。 In the method of the present invention, the step S1 The method includes the following steps: the single-chip microcomputer controls the Doppler radar probe to transmit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe performs the reflected frequency-converted intermediate frequency signal at a predetermined frequency. Sampling, reading the amplitude value of the intermediate frequency signal An, and compares the amplitude value An with a set threshold N. If An>N, the process proceeds to step S2, otherwise, step S1 is repeated.
在本发明所述的方法中，所述步骤 S2 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头以预定的采样频率对反射回来的经混频器变频的中频信号进行采样，并读取所述中频信号的幅度值，若在第一预设延迟时间内持续存在幅度值大于所述门限值 N 的中频信号，则所述运动物体属于有效人体活动，进入步骤 S3 ，否则返回步骤 S1 。 In the method of the present invention, the step S2 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency. The intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value persists within the first preset delay time, the amplitude value is greater than the threshold value. If the moving medium belongs to the effective human body activity, the process proceeds to step S3, otherwise returns to step S1.
在本发明所述的方法中，所述步骤 S6 包括以下步骤：所述单片机控制所述多普勒雷达探头向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头以预定的采样频率对反射回来的经混频器变频的中频信号进行采样，并读取所述中频信号的幅度值，若在一预定的采样时间段内，没有再次检测到幅度值大于所述预设值 M 的中频信号时，则判断为无其他人体活动，所述单片机控制所述继电器断开，关闭所述电器电源。 In the method of the present invention, the step S6 The method includes the following steps: the single chip microcomputer controls the Doppler radar probe to emit a continuous wave or pulse microwave signal to a predetermined detection range, and the Doppler radar probe converts the reflected mixer through a predetermined sampling frequency. The intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value is not detected again in the predetermined sampling period, the amplitude value is greater than the preset value. When the intermediate frequency signal of M is judged to be no other human activity, the single chip microcomputer controls the relay to be turned off, and the electrical power of the electrical appliance is turned off.
本发明还提供一种微波感应控制装置，用于控制电器电源的导通或断开，该微波感应控制装置包括依次电性连接的多普勒雷达探头、混频器、信号放大器、以及主控模块，所述主控模块包括处理信号的单片机和与所述单片机及所述电器电源电性连接的继电器，其中，所述多普勒雷达探头用于实时监测预定的探测范围内有无运动物体，所述单片机用于在所述多普勒雷达探头探测到所述探测范围内有运动物体时，判断所述运动物体是否为有效人体活动，并在判断所述运动物体为人体时控制电器电源导通；所述多普勒雷达探头还用于实时监测所述探测范围内是否有人体离开的动作；所述单片机还用于在所述多普勒雷达探头探测到人体离开的动作时判断所述人体离开的动作是否为有效动作，并根据判断结果控制所述继电器吸合或断开，进而控制所述电器电源的导通或断开。 The invention also provides a microwave induction control device for controlling the conduction or disconnection of an electrical power source, the microwave induction control device comprising a Doppler radar probe, a mixer, a signal amplifier, and a main control which are electrically connected in sequence a module, the main control module includes a single chip processing signal and a relay electrically connected to the single chip microcomputer and the electrical power source of the electrical appliance, wherein the Doppler radar probe is used for real-time monitoring of a moving object within a predetermined detection range The single chip is used to determine whether the moving object is an effective human activity when the Doppler radar probe detects a moving object in the detection range, and control the electrical power source when determining that the moving object is a human body Turning on; the Doppler radar probe is further configured to monitor in real time whether there is a movement of the human body in the detection range; and the single chip microcomputer is further configured to judge when the Doppler radar probe detects the movement of the human body to leave Determining whether the movement of the human body is an effective action, and controlling the relay to be turned on or off according to the judgment result, thereby controlling the electric appliance Source on or off.
实施本发明的提供的一种微波感应控制方法，具有以下有益效果： A microwave induction control method provided by the present invention has the following beneficial effects:
（ 1 ）本发明采用的微波感应控制装置的信号处理方法，利用多普勒雷达原理来检测移动目标，从而达到控制电器电源开关的目的，不需要人手动操作机械式开关，不会产生机械磨损和疲劳损伤，延长电器电源开关的使用寿命，此外，本发明中的微波感应控制装置能够安装在电器的内部，采用封闭式的结构，这样可以防潮、防触电，从根本上解决了小孩在手动操作电器电源开关的情况下易产生触电危险的问题； ( 1 The signal processing method of the microwave induction control device used in the present invention uses the Doppler radar principle to detect the moving target, thereby achieving the purpose of controlling the electrical power switch, and does not require manual operation of the mechanical switch, and does not cause mechanical wear and fatigue. Damage, extend the service life of the electrical power switch, in addition, the microwave induction control device of the present invention can be installed inside the electric appliance, adopts a closed structure, which can prevent moisture and electric shock, and fundamentally solves the problem that the child operates the electric appliance manually. In the case of a power switch, there is a risk of electric shock;
（ 2 ）本发明所采用的微波感应控制装置的信号处理方法，能够判断多普勒雷达探头检测范围内是否有人体离开的动作，并在判断人体离开多普勒雷达探头探测范围并且探测范围内没有人时，自动关闭电器电源开关，不仅能节能、节电，而且还能避免人离开忘记关掉电器电源时，电器因工作太久、发热过大而引起火灾的问题； ( 2 The signal processing method of the microwave induction control device used in the present invention can determine whether there is a human body leaving motion within the detection range of the Doppler radar probe, and judge that the human body leaves the detection range of the Doppler radar probe and no one in the detection range When the electrical switch is automatically turned off, it not only saves energy and saves electricity, but also avoids the problem of fire caused by the electric appliance being too long and the heat is too large when the person forgets to turn off the electrical power supply;
（ 3 ）本发明中在探测范围内无运动物体采用脉冲微波信号进行现场监测，当探测范围内有运动物体时采用连续波或者脉冲微波信号进行现场监测，功耗小，在电器上安装使用时能够使电器的待机功耗大幅降低，从而进一步的节能、节电。 (3 In the invention, no moving object in the detection range adopts pulse microwave signal for on-site monitoring, and when there is a moving object in the detection range, continuous wave or pulse microwave signal is used for on-site monitoring, and the power consumption is small, and can be made when installed and used on the electric appliance. The standby power consumption of the electric appliance is greatly reduced, thereby further saving energy and saving electricity.
附图说明 DRAWINGS
下面将结合附图及实施例对本发明作进一步说明，附图中： The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:
图 1 是本发明微波感应控制装置实施例的结构示意图； 1 is a schematic structural view of an embodiment of a microwave induction control device of the present invention;
图 2 是本发明微波感应控制方法实施例的流程图； 2 is a flow chart of an embodiment of a microwave induction control method of the present invention;
图 3 是图2所示步骤S4的具体工作流程图； Figure 3 is a specific working flow chart of step S4 shown in Figure 2;
图4是图2所示步骤S5的具体工作流程图； Figure 4 is a specific working flow chart of step S5 shown in Figure 2;
图5是图2所示步骤S1的具体工作流程图； Figure 5 is a specific working flow chart of the step S1 shown in Figure 2;
图6是采用连续波时人离开探测范围幅度值变化的波形图； Figure 6 is a waveform diagram showing changes in the amplitude value of a person leaving the detection range when a continuous wave is used;
图7是采用连续波时有人体在探测范围内活动时幅度值变化的波形图。 Fig. 7 is a waveform diagram showing changes in amplitude values when a human body moves within a detection range when a continuous wave is used.
具体实施方式 detailed description
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。 For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.
图1是本发明微波感应控制装置实施例的结构示意图。参见图1所示，本发明中的微波感应控制装置包括依次电性连接的多普勒雷达探头1、混频器2、信号放大器3、以及主控模块4，主控模块4包括处理信号的单片机5和与所述单片机5电性连接的继电器6，其中，多普勒雷达探头1用于实时监测预定的探测范围内有无运动物体，单片机5用于在多普勒雷达探头1探测到探测范围内有运动物体时，判断运动物体是否为有效人体活动，并在判断运动物体为有效人体活动时控制电器电源导通；多普勒雷达探头1还用于实时监测探测范围内是否有人体离开的动作；单片机5还用于在多普勒雷达探头1探测到人体离开的动作时判断上述人体离开的动作是否为有效动作，并根据判断结果控制所述继电器6吸合或断开，进而控制所述电器电源的导通或断开。本发明中的混频器2用于将接收到的微波信号与多普勒雷达探头自身本振产生的微波信号混频后输出给信号放大器。 1 is a schematic structural view of an embodiment of a microwave induction control device of the present invention. Referring to FIG. 1, the microwave sensing control device of the present invention comprises a Doppler radar probe 1, a mixer 2, a signal amplifier 3, and a main control module 4, which are electrically connected in sequence, and the main control module 4 includes a signal for processing. The single chip microcomputer 5 and the relay 6 electrically connected to the single chip microcomputer 5, wherein the Doppler radar probe 1 is used for real-time monitoring of the presence or absence of a moving object within a predetermined detection range, and the single chip microcomputer 5 is used for detecting the Doppler radar probe 1 When there is a moving object in the detection range, it is judged whether the moving object is effective human activity, and the electrical power supply is controlled when the moving object is determined to be effective human activity; the Doppler radar probe 1 is also used to monitor whether there is a human body in the detection range in real time. The action of leaving the single chip 5 is also used to determine whether the action of the human body leaving is an effective action when the Doppler radar probe 1 detects the movement of the human body, and controls the relay 6 to be pulled or disconnected according to the judgment result, thereby Controlling the turning on or off of the electrical power source. The mixer 2 of the present invention is for mixing the received microwave signal with the microwave signal generated by the local oscillator of the Doppler radar probe and outputting it to the signal amplifier.
本发明中的多普勒雷达探头1由单片机5控制，当探测范围内无人时，单片机5控制多谱勒 雷达探头向设定的探测范围内发射脉冲微波信号，当感应到有运动物体时，单片机5控制所述多普勒探头向设定的探测范围内发射连续波或者脉冲微波信号，这样可以有效的降低功耗。 The Doppler radar probe 1 of the present invention is controlled by the single chip microcomputer 5, and when the detection range is unmanned, the single chip microcomputer 5 controls the Doppler The radar probe transmits a pulsed microwave signal to the set detection range. When a moving object is sensed, the single chip microcomputer 5 controls the Doppler probe to emit a continuous wave or a pulsed microwave signal within a set detection range, which can be effective. Reduce power consumption.
以下详细说明本发明微波感应控制装置的具体信号处理和控制方法。 The specific signal processing and control method of the microwave induction control device of the present invention will be described in detail below.
图2是本发明微波感应控制方法实施例的流程图。参见图2所示，本发明第一实施例中提供的微波感应控制方法，包括以下步骤： 2 is a flow chart of an embodiment of a microwave induction control method of the present invention. Referring to FIG. 2, the microwave induction control method provided in the first embodiment of the present invention includes the following steps:
S1 、对主控模块4中的单片机5进行初始化，然后向多普勒雷达探头1提供电源，多普勒雷达探头1进入工作状态，向探测范围内发射脉冲微波信号，实时监测多普勒雷达探头1探测范围内的有无运动物体，若有则进入步骤S2，若无则重复步骤S1； S1 Initializing the single-chip microcomputer 5 in the main control module 4, and then supplying power to the Doppler radar probe 1, the Doppler radar probe 1 enters a working state, transmitting a pulsed microwave signal to the detection range, and real-time monitoring the Doppler radar probe 1 whether there is a moving object in the detection range, if yes, proceed to step S2, if not, repeat step S1;
S2 、进行防干扰判断，多普勒探头向探测范围内发射连续波或者脉冲微波信号判断运动物体是否属于有效人体活动，这里的有效人体活动主要是检测是否有人进入多普勒雷达探头1的探测范围，若是，则进入步骤S3，否则返回步骤S1； S2 To prevent interference, the Doppler probe transmits continuous wave or pulsed microwave signal to the detection range to determine whether the moving object belongs to effective human activity. The effective human activity here is mainly to detect whether someone enters the detection range of the Doppler radar probe 1. If yes, proceed to step S3, otherwise return to step S1;
S3 、单片机5控制继电器6吸合，使与继电器6电性连接的电器电源导通； S3, the single-chip microcomputer 5 controls the relay 6 to pull in, so that the electrical power source electrically connected with the relay 6 is turned on;
S4 、多普勒雷达探头1向探测范围内发射脉冲微波信号，实时监测探测范围内的是否有人体离开的动作，若是则进入步骤S5，否则重复步骤S4； S4 , Doppler radar probe 1 transmits a pulsed microwave signal to the detection range, real-time monitoring whether there is a human body leaving motion within the detection range, if yes, proceeds to step S5, otherwise repeats step S4;
S5 、再次进行防干扰判断，多普勒探头向探测范围内发射连续波或者脉冲微波信号判断人体离开的动作是否为有效动作，若否，则电器电源维持导通状态，若是，则进入步骤S6； S5 And again, the anti-interference judgment is performed, and the Doppler probe transmits a continuous wave or a pulsed microwave signal to the detection range to determine whether the movement of the human body is effective, and if not, the electrical power source maintains the conduction state, and if yes, proceeds to step S6;
S6 、电器电源进入预关闭状态，在该预关闭状态下，单片机5控制多普勒探头向探测范围内发射连续波或者脉冲微波信号，监测在预定的预关闭时段内探测范围内是否有其它人体活动，这里主要是检测多普勒雷达探头1探测范围内是否还有人未离开，若无，则单片机5控制继电器6断开，从而关闭电器电源，否则返回步骤S4。 S6 The electrical power supply enters a pre-closed state. In the pre-closed state, the single-chip microcomputer 5 controls the Doppler probe to emit a continuous wave or pulsed microwave signal in the detection range, and monitors whether there is other human activity in the detection range within a predetermined pre-close period. Here, it is mainly to detect whether there is still someone left in the detection range of the Doppler radar probe 1. If not, the single-chip microcomputer 5 controls the relay 6 to be turned off, thereby turning off the electrical power supply, otherwise returns to step S4.
在上述方法流程中，多普勒雷达探头1是利用多普勒雷达原理设计的微波移动物体探测器，且微波感应距离在 0.3-18 米内可调，多普勒雷达探头1采集的微波信号采用单片机5程序分析处理，可靠性高，本发明中采用的多普勒雷达探头1为非接触型探测装置，可以安装在一定厚度的塑料，玻璃，木制等非金属的外壳里面，使产品能够采用封闭的结构，这样可以防潮、防触电，并且从根本上解决了小孩在手动操作电源开关的情况下易产生触电危险的问题。 In the above method flow, the Doppler radar probe 1 is a microwave moving object detector designed by the Doppler radar principle, and the microwave sensing distance is 0.3-18 The meter is adjustable, the microwave signal collected by the Doppler radar probe 1 is analyzed and processed by the single chip microcomputer 5, and the reliability is high. The Doppler radar probe 1 used in the present invention is a non-contact type detecting device, and can be installed in a certain thickness of plastic. The non-metallic outer casing, such as glass and wood, enables the product to adopt a closed structure, which can prevent moisture and electric shock, and fundamentally solve the problem that the child is liable to generate electric shock when manually operating the power switch.
图 3是图2所示步骤S4的具体工作流程图，图4是图2所示步骤S4的具体工作流程图。在本发明第二实施例中提供的方法中，参见图3、图4所示，相对于本发明第一实施例，该实施例中的方法还可以包括以下步骤： Figure 3 is a specific working flow chart of step S4 shown in FIG. 2, and FIG. 4 is a specific working flow chart of step S4 shown in FIG. 2. In the method provided in the second embodiment of the present invention, referring to FIG. 3 and FIG. 4, the method in this embodiment may further include the following steps:
S4 0 、微波感应控制装置进入待机状态，单片机5控制多普勒雷达探头1向预定的探测范围内发射脉冲微波信号，多普勒雷达探头1以预定的频率对反射回来的经混频器2变频的中频信号进行采样，读取采集到的中频信号的幅度值Am（这里m为1、2、3 …… 自然数，Am指第m周期中采样得到的中频信号的幅度值的最大值），这里需要说明的是，本实施例中预定的频率为每1毫秒采样一次，以300毫秒为一周期（当然这里的周期也可以选取不同的数值），Am为该周期中中频信号幅度值的最大值； S4 0 The microwave induction control device enters a standby state, and the single chip microcomputer 5 controls the Doppler radar probe 1 to emit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe 1 converts the reflected mixer 2 at a predetermined frequency. The intermediate frequency signal is sampled, and the amplitude value Am of the collected intermediate frequency signal is read (where m is 1, 2, 3 ...... The natural number, Am refers to the maximum value of the amplitude value of the intermediate frequency signal sampled in the mth period. It should be noted that, in this embodiment, the predetermined frequency is sampled every 1 millisecond, with a period of 300 milliseconds (of course here) The period can also select different values), and Am is the maximum value of the amplitude value of the intermediate frequency signal in the period;
S41 、将上述采集的幅度值Am与一预先设置的预设值M比较，若Am<M，则判断为有人体离开的动作，进入步骤S5，否则返回步骤S4 0 ，同样，这里的预设值M为1.5V左右，也是可以自行设置的，作为优选，本实施例中预设值M为1.5V,即当探测范围内采集到频率在10HZ-35HZ之间、幅度值又小于1.5V的中频信号时，则认为检测到有人体离开探测范围的动作； S41 The amplitude value Am of the above-mentioned acquisition is compared with a preset preset value M. If Am<M, it is determined that there is a movement of the human body, and the process proceeds to step S5, otherwise, the process returns to step S4. Similarly, the preset value M here is about 1.5V, which can also be set by itself. Preferably, in this embodiment, the preset value M is 1.5V, that is, when the frequency collected in the detection range is between 10HZ-35HZ, When the amplitude value is less than the intermediate frequency signal of 1.5V, it is considered that the action of detecting the human body from the detection range is detected;
S5 0 、判断人体离开的动作是否为有效动作，单片机5控制多普勒雷达探头1向预定的探测范围内发射连续波或者脉冲微波信号，多普勒雷达探头1以预定的采样频率对反射回来的经混频器2变频的中频信号进行采样（同上，这里的预定采样频率也为每1毫秒进行一次采样），读取中频信号的幅度值，每读取一个幅度值，幅度值计数器加1，直到中频信号的幅度值下降到噪声范围内，并在第二预设延迟时间后恢复待机状态，这里的噪声范围内是指幅度值小于0.75V，第二预设延迟时间为2s，即直到中频信号的幅度值下降到0.75V时，再延迟2S，若该时段内没有检测到幅度值大于0.75V的中频信号则微波感应控制装置自动进入待机状态，这里需要说明的时，当中频信号的幅度值下降到噪声范围内时，说明该探测范围内无运动物体，即人已离开多普勒雷达探头1的探测范围； S5 0 To determine whether the movement of the human body is an effective action, the single-chip microcomputer 5 controls the Doppler radar probe 1 to emit a continuous wave or a pulsed microwave signal within a predetermined detection range, and the Doppler radar probe 1 reflects the reflected back at a predetermined sampling frequency. The mixer 2 frequency-converted IF signal is sampled (same as above, the predetermined sampling frequency is also sampled every 1 millisecond), and the amplitude value of the IF signal is read. Each time an amplitude value is read, the amplitude value counter is incremented by one until The amplitude value of the IF signal falls within the noise range, and returns to the standby state after the second preset delay time. Here, the noise range means that the amplitude value is less than 0.75V, and the second preset delay time is 2s, that is, until the intermediate frequency signal When the amplitude value drops to 0.75V, it is delayed by 2S. If no IF signal with amplitude value greater than 0.75V is detected during this period, the microwave induction control device automatically enters the standby state. Here, the amplitude value of the intermediate frequency signal is required. When falling within the noise range, it means that there is no moving object in the detection range, that is, the detection range of the person has left the Doppler radar probe 1;
S51 、按照时间顺序对步骤S50中采集的中频信号进行分组，计算得出每组中频信号幅度值的平均值，这里以300毫秒为一组（同样，这里可以根据需要选取不同的数值作为一组），将300毫秒内采集到的中频信号的幅度值相加再除以这300毫秒内幅度值计数器中读取的幅度值的个数得出该组中频信号幅度值的平均值； S51 The IF signals collected in step S50 are grouped in chronological order, and the average value of the amplitude values of each group of IF signals is calculated, which is set in groups of 300 milliseconds (again, different values can be selected as a group according to requirements) Adding the amplitude values of the intermediate frequency signals collected within 300 milliseconds and dividing by the number of amplitude values read in the amplitude value counter within 300 milliseconds to obtain an average value of the amplitude values of the set of intermediate frequency signals;
S52 、取每组内幅度值最大的中频信号与一一预设值M相比较（若采样的个数不足300个，中频信号的幅度值就下降到噪声范围内，且1秒内没有幅度值大于噪声范围的中频信号出现，则取最后一个大于噪声范围内的中频信号的幅度值与预设值M相比较），统计出幅度值大于预设值M的中频信号的个数，同时，将步骤S51中分组计算得出的各个平均值进行比较，判断其是否呈持续下降趋势，若该时段内出现多个幅度值大于预设值M的中频信号或者分组中频信号幅度值的平均值不是持续下降趋势，则说明人体离开的动作为无效动作，电器电源开关维持闭合状态，否则进入步骤S6。参见图6所示的波形为采用连续波探测时，人离开探测范围时的中频信号幅度值变化波形图，从图中可以看出，此时中频信号的幅度值的平均值是呈持续下降趋势的。 S52 The intermediate frequency signal with the largest amplitude value in each group is compared with a preset value M. (If the number of samples is less than 300, the amplitude value of the intermediate frequency signal falls within the noise range, and no amplitude value is greater than 1 second. If the IF signal of the noise range appears, the amplitude value of the IF signal that is greater than the noise range is compared with the preset value M, and the number of IF signals whose amplitude value is greater than the preset value M is counted, and the steps are performed. The average values calculated by the grouping in S51 are compared to determine whether it is in a continuous downward trend. If a plurality of intermediate frequency signals whose amplitude values are greater than the preset value M or the average value of the amplitude values of the grouped intermediate frequency signals do not continuously decrease during the period The trend indicates that the movement of the human body is an invalid action, and the electrical power switch remains in the closed state, otherwise proceeds to step S6. The waveform shown in Fig. 6 is a waveform diagram of the amplitude value change of the intermediate frequency signal when the person leaves the detection range when using continuous wave detection. It can be seen from the figure that the average value of the amplitude value of the intermediate frequency signal is continuously decreasing. of.
在本发明第三实施例中提供的方法中，参见图5所示，相对于本发明第二实施例，该实施例中的方法还可以包括以下步骤： In the method provided in the third embodiment of the present invention, referring to FIG. 5, the method in this embodiment may further include the following steps with respect to the second embodiment of the present invention:
S1 0 、单片机5控制多普勒雷达探头1向预定的探测范围内发射脉冲微波信号，多普勒雷达探头1以预定的频率对反射回来的经混频器2变频的中频信号进行采样，读取所述中频信号的幅度值An（这里n为1、2、3 …… 自然数，An指第n周期采样得到的中频信号的幅度值的最大值），同样本实施例中的预定的频率为每1毫秒采样一次，以300毫秒为一周期（同上，这里的周期可以选取不同的数值），An为该周期中中频信号幅度值的最大值； S1 0 The single-chip microcomputer 5 controls the Doppler radar probe 1 to emit a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe 1 samples the reflected intermediate frequency-converted intermediate frequency signal at a predetermined frequency, and reads the The amplitude value An of the intermediate frequency signal (where n is 1, 2, 3 ...... The natural number, An refers to the maximum value of the amplitude value of the intermediate frequency signal sampled in the nth cycle. Similarly, the predetermined frequency in this embodiment is sampled every 1 millisecond, with a period of 300 milliseconds (ibid., the period here can be selected) Different values), An is the maximum value of the amplitude value of the intermediate frequency signal in the period;
S11 、将幅度值An与一预先设置的门限值N相比较，若An>N，则进入步骤S2，否则，返回步骤S1 0 ，这里的门限值N为2V左右，可以自行设置，作为优选，本实施例中门限值N为2V，即当探测范围内采集到幅度值大于2V的中频信号时，则认为检测到有运动物体进入探测范围； S11, comparing the amplitude value An with a preset threshold value N, if An>N, proceeding to step S2, otherwise, returning to step S1 0 The threshold value N here is about 2V, and can be set by itself. Preferably, in the embodiment, the threshold value N is 2V, that is, when an intermediate frequency signal with an amplitude value greater than 2V is collected in the detection range, it is considered that there is detection. Moving objects enter the detection range;
S2 、进行防干扰判断，判断运动物体是否属于有效人体活动，这里的人体活动主要是检测是否有人进入多普勒雷达探头1的探测范围，具体地，单片机5控制多普勒雷达探头1向预定的探测范围内发射连续波或者脉冲微波信号，多普勒雷达探头1以预定的采样频率（同上，每1毫秒采样一次）对反射回来的经混频器2变频的中频信号进行采样，并读取中频信号的幅度值，若在第一预设延迟时间内持续存在幅度值大于门限值N的中频信号，则认为该运动物体属于有效人体活动，进入步骤S3，否则返回步骤S1 0 。参见图7所示，采用连续波监测时探测范围内有人体活动时中频信号幅度值变化的波形图，从图中可以看出在该时间段内，探测范围内持续存在幅度值较大的中频信号。 S2 Perform anti-interference judgment to determine whether the moving object belongs to effective human activity. The human activity here mainly detects whether someone enters the detection range of the Doppler radar probe 1. Specifically, the single-chip microcomputer 5 controls the Doppler radar probe 1 to a predetermined one. The continuous wave or pulsed microwave signal is transmitted within the detection range, and the Doppler radar probe 1 samples the reflected intermediate frequency-converted IF signal and reads it at a predetermined sampling frequency (same as once every 1 millisecond). If the amplitude value of the intermediate frequency signal continues to exist in the first preset delay time, the moving object belongs to the active human activity, and the process proceeds to step S3, otherwise returns to step S1. 0 . Referring to Figure 7, the waveform of the amplitude value of the IF signal in the detection range is detected by continuous wave monitoring. It can be seen from the figure that during this time period, the intermediate frequency with large amplitude value persists within the detection range. signal.
这里需要说明的是，本实施例中的第一预设延迟时间为1s，且不同型号多普勒雷达探头1的经混频器2变频的中频信号的频率范围也不相同，例如2.4GHZ的多普勒雷达探头，对应的人体运动产生的中频信号的频率为1HZ-8HZ；5.8GHZ的多普勒雷达探头，对应人体运动产生的中频信号的频率范围为5.5HZ-20HZ；24GHZ的多普勒雷达探头，对应的人体运动产生的中频信号的频率范围为15HZ-80HZ；本实施例中采用10.525GHz多普勒雷达探头1，其对应的人体运动产生的中频信号的频率为10HZ-35HZ，也就是说，本实施例中，若在该时段内持续存在幅度值大于门限值N，且频率又10HZ-35HZ之间的微波信号，则说明上述运动物体为有效人体活动，同样的用其它相应频段的微波多普勒探头来做相同的人体运动判定也在本发明的保护范围内。 It should be noted that the first preset delay time in this embodiment is 1 s, and the frequency range of the intermediate frequency signal converted by the mixer 2 of the Doppler radar probe 1 of different models is also different, for example, 2.4 GHz. Doppler radar probe, the frequency of the intermediate frequency signal generated by the corresponding human motion is 1HZ-8HZ; the Doppler radar probe of 5.8GHZ, the frequency range of the intermediate frequency signal corresponding to human motion is 5.5HZ-20HZ; Doppler of 24GHZ The frequency of the IF signal generated by the corresponding human motion is 15HZ-80HZ; in this embodiment, the 10.525GHz Doppler radar probe 1 is used, and the frequency of the intermediate frequency signal generated by the corresponding human motion is 10HZ-35HZ. That is to say, in this embodiment, if the microwave signal between the amplitude value greater than the threshold value N and the frequency between 10HZ and 35HZ continues to exist during the period, the moving object is effective human activity, and the same uses other It is also within the scope of the present invention to make the same human motion determination by the microwave Doppler probe of the corresponding frequency band.
以下是本发明第四实施例中提供的方法，相对于本发明第三实施例，该实施例中的方法还可以包括以下步骤： The following is a method provided in the fourth embodiment of the present invention. The method in this embodiment may further include the following steps.
S6 、电器电源开关进入预关闭状态，判断是否有其他人体活动，具体地，单片机5控制多普勒雷达探头1向预定的探测范围内发射连续波或者脉冲微波信号，多普勒雷达探头1以预定的采样频率对反射回来的经混频器2变频的中频信号进行采样（同上，这里的预定采样频率也为每1毫秒进行一次采样），并读取中频信号的幅度值，若预设的采样时间段内，没有再次检测到幅度值大于预设值M的中频信号时，则判断为无微动作，单片机5控制继电器6断开，关闭电器电源，否则返回步骤S4 0 ，作为优选，本实施例中的预设采样时间段为5s 。 S6 The electrical power switch enters a pre-closed state to determine whether there is other human activity. Specifically, the single-chip microcomputer 5 controls the Doppler radar probe 1 to emit a continuous wave or a pulsed microwave signal to a predetermined detection range, and the Doppler radar probe 1 is scheduled. The sampling frequency samples the reflected intermediate frequency-converted IF signal (the same as above, the predetermined sampling frequency is also sampled every 1 millisecond), and reads the amplitude value of the IF signal, if the preset sampling During the time period, if the intermediate frequency signal whose amplitude value is greater than the preset value M is not detected again, it is determined that there is no micro-action, and the single-chip microcomputer 5 controls the relay 6 to be turned off, and the electrical power is turned off, otherwise returns to step S4. 0. Preferably, the preset sampling time period in this embodiment is 5 s.
相对于现有技术，本发明利用上述原理建立了判断人离开时的动作体系，能够准确的判断出多普勒雷达探头 1 检测范围内是否有人体离开的动作，并在判断人体离开多普勒雷达探头 1 探测范围并且探测范围内没有人时，自动关闭电器电源，克服了现有技术中只能探测运动物体，不能辨别是否有人离开的动作的缺陷，不仅能够节能、节电，而且还能避免人离开忘记关掉电器电源时，电器因工作太久、发热过大而引起火灾的问题。 Compared with the prior art, the present invention utilizes the above principle to establish an action system for judging when a person leaves, and can accurately determine the Doppler radar probe 1 Whether there is a movement of the human body within the detection range, and it is judged that the human body leaves the Doppler radar probe 1 When the detection range is unknown and there is no one in the detection range, the electrical power is automatically turned off, which overcomes the defects in the prior art that only the moving object can be detected, and the action of not being able to leave is not only energy saving, power saving, but also avoiding people leaving. When you forget to turn off the power of the appliance, the appliance may cause fire problems due to excessive operation and excessive heat.
此外，本发明中在探测范围内无运动物体采用脉冲微波信号进行现场监测，当探测范围内有运动物体时采用连续波或者脉冲微波信号进行现场监测，能够降低微波感应控制装置的静态功耗，经试验证明使用本发明提供的方法，在探测范围内无人体活动时可以使电器的静态耗电小于 0.5W ，在探测范围内有人体活动时可以使电器的静态耗电小于 0.8W ，而现有技术中 家用电器的待机功耗一般在10-30W,每年电器因待机耗电的消耗大约占家电耗电的10%左右。因此，本发明中提供的一种微波感应控制方法及装置能够大幅度的降低电器的功耗，达到节能、节电的目的。 In addition, in the present invention, no moving object in the detection range uses the pulse microwave signal for on-site monitoring, and when there is a moving object in the detection range, continuous wave or pulse microwave signal is used for on-site monitoring, which can reduce the static power consumption of the microwave induction control device. It has been proved by experiments that the static power consumption of the electric appliance can be made less than when the human body is active within the detection range by using the method provided by the invention. 0.5W, the static power consumption of the appliance can be less than 0.8W when there is human activity in the detection range, but in the prior art The standby power consumption of household appliances is generally 10-30W. The annual consumption of electrical appliances is about 10% of the power consumption of household appliances. Therefore, the microwave induction control method and device provided by the invention can greatly reduce the power consumption of the electrical appliance, and achieve the purpose of energy saving and power saving.
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。 The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Claims (11)

  1. 一种微波感应控制方法，利用微波感应控制装置对被控制的电器电源的开关进行导通或断开，该微波感应控制装置包括：依次电性连接的多普勒雷达探头（ 1 ）、混频器（ 2 ）、信号放大器（ 3 ）、以及主控模块（ 4 ），所述主控模块（ 4 ）包括处理信号的单片机（ 5 ）和与所述单片机（ 5 ）及所述电器电源电性连接的继电器（ 6 ），其特征在于，该微波感应控制方法包括以下步骤：A microwave induction control method uses a microwave induction control device to turn on or off a switch of a controlled electrical power source, the microwave induction control device comprising: a Doppler radar probe electrically connected in sequence ( 1), a mixer (2), a signal amplifier (3), and a main control module (4), the main control module (4) comprising a single chip (5) for processing signals and the single chip microcomputer (5) And a relay (6) electrically connected to the electrical power source, wherein the microwave induction control method comprises the following steps:
    S1 、采用脉冲微波信号实时监测预定的探测范围内有无运动物体，若有则进入步骤 S2 ，若无则重复步骤 S1 ；S1, using pulse microwave signal to monitor real-time whether there is any moving object in the predetermined detection range, if yes, proceed to step S2, if not, repeat step S1 ;
    S2 、采用连续波或者脉冲微波信号判断所述运动物体是否属于有效人体活动，若是，则进入步骤 S3 ，否则返回步骤 S1 ；S2, using continuous wave or pulsed microwave signal to determine whether the moving object belongs to effective human activity, and if so, proceeds to step S3, otherwise returns to step S1 ;
    S3 、单片机（ 5 ）控制继电器（ 6 ）吸合，使与所述继电器（ 6 ）电性连接的电器电源导通；S3, MCU (5) control relay (6) pulls in and makes the relay (6) Electrically connected electrical power source is turned on;
    S4 、采用脉冲微波信号实时监测所述预定探测范围内是否有人体离开的动作，若是则进入步骤 S5 ，否则重复步骤 S4 ；S4, using a pulsed microwave signal to monitor in real time whether there is a movement of the human body within the predetermined detection range, if yes, proceed to step S5, otherwise repeat step S4 ;
    S5 、采用连续波或者脉冲微波信号判断所述人体离开的动作是否为有效动作，若否，则所述电器电源维持导通状态，若是，则进入步骤 S6 ；S5, using continuous wave or pulsed microwave signal to determine whether the movement of the human body is an effective action, and if not, the electrical power supply maintains an on state, and if so, proceeds to the step S6 ;
    S6 、所述电器电源进入预关闭状态，在该预关闭状态下，采用连续波或者脉冲微波信号判断在预定的预关闭时段内探测范围内是否有其他人体活动，若无，则所述单片机（ 5 ）控制所述继电器（ 6 ）断开，从而关闭所述电器电源，否则返回步骤 S4 。S6 The electrical power source enters a pre-closed state, and in the pre-closed state, a continuous wave or a pulsed microwave signal is used to determine whether there is other human activity in the detection range within a predetermined pre-close period, and if not, the single-chip microcomputer (5) Controlling the relay (6) to open, thereby turning off the electrical power supply, otherwise returning to step S4.
  2. 根据权利要求 1 所述的方法，其特征在于，所述步骤 S4 包括以下步骤：所述微波感应控制装置处于待机状态，所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射脉冲微波信号，所述多普勒雷达探头（ 1 ）以预定的频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，读取所述中频信号的幅度值 Am, 并将所述幅度值 Am 与一预先设置的预设值 M 比较，若 Am<M ，则判断为有人体离开的动作，进入步骤 S5 ，否则重复步骤 S4 。 The method according to claim 1, wherein the step S4 comprises the step of: the microwave sensing control device is in a standby state, the single chip microcomputer (5) Controlling the Doppler radar probe (1) to emit a pulsed microwave signal to a predetermined detection range, the Doppler radar probe (1) being reflected back at a predetermined frequency (2) The frequency converted intermediate frequency signal is sampled, the amplitude value Am of the intermediate frequency signal is read, and the amplitude value Am is compared with a preset preset value M, if Am<M If it is determined that there is a movement of the human body, the process proceeds to step S5, otherwise step S4 is repeated.
  3. 根据权利要求 1 所述的方法，其特征在于，所述步骤 S5 具体包括：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射连续微波信号，所述多普勒雷达探头（ 1 ）以预定的采样频率对反射回来经混频器（ 2 ）变频的中频信号进行采样，读取所述中频信号的幅度值，直到所述中频信号的幅度值降到噪声范围内，并在第二预设延迟时间后恢复待机状态，同时，所述单片机（ 5 ）按照时间顺序对所述中频信号进行分组，并计算得出每组中频信号幅度值的平均值；若该时段内出现多个幅度值大于所述预设值 M 的中频信号或者分组中频信号幅度值的平均值不是持续下降趋势，则所述 人体离开的动作为无效动作，所述电器电源维持导通状态，否则进入步骤 S6 。  The method according to claim 1, wherein the step S5 specifically comprises: the single chip microcomputer (5) controlling the Doppler radar probe (1) Transmitting a continuous microwave signal to a predetermined detection range, the Doppler radar probe (1) being reflected back to the mixer at a predetermined sampling frequency (2) The frequency-converted intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read until the amplitude value of the intermediate frequency signal falls within a noise range, and the standby state is restored after the second preset delay time, and at the same time, the single-chip microcomputer (5 The IF signals are grouped in chronological order, and an average value of the amplitude values of each group of IF signals is calculated; if a plurality of amplitude values appear in the period are greater than the preset value M The average value of the amplitude value of the intermediate frequency signal or the grouped intermediate frequency signal is not a continuous downward trend, and the action of the human body leaving is an invalid action, and the electrical power source maintains the conduction state, otherwise proceeds to step S6.
  4. 根据权利要求 2 所述的方法，其特征在于，所述步骤 S1 包括以下步骤：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射脉冲微波信号，所述多普勒雷达探头（ 1 ）以预定的频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，读取所述中频信号的幅度值 An ，并将所述幅度值 An 与一设置的门限值 N 比较，若 An>N ，则进入步骤 S2 ，否则，重复步骤 S1 。  The method according to claim 2, wherein said step S1 comprises the step of: said single chip microcomputer (5) controlling said Doppler radar probe (1) Transmitting a pulsed microwave signal to a predetermined detection range, the Doppler radar probe (1) sampling the reflected intermediate frequency-converted (IF) frequency-frequency signal at a predetermined frequency, and reading the intermediate frequency signal Amplitude value An, and compares the amplitude value An with a set threshold N. If An>N, the process proceeds to step S2, otherwise, step S1 is repeated.
  5. 根据权利要求 2 所述的方法，其特征在于，所述步骤 S2 包括以下的具体操作：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头（ 1 ）以预定的采样频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，并读取所述中频信号的幅度值，若在第一预设延迟时间内持续存在幅度值大于所述门限值 N 的中频信号，则所述运动物体属于有效人体活动，进入步骤 S3 ，否则返回步骤 S1 。  The method according to claim 2, wherein the step S2 comprises the following specific operations: the single chip microcomputer (5) Controlling the Doppler radar probe (1) to emit a continuous wave or pulsed microwave signal within a predetermined detection range, the Doppler radar probe (1) being reflected back to the mixer at a predetermined sampling frequency ( 2 The frequency conversion intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value persists within the first preset delay time, the amplitude value is greater than the threshold value. The intermediate frequency signal, the moving object belongs to the effective human activity, proceeds to step S3, otherwise returns to step S1.
  6. 根据权利要求 2 所述的方法，其特征在于，所述步骤 S5 包括以下步骤：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射连续波或者脉冲微波信号；所述多普勒雷达探头（ 1 ）以预定的采样频率对反射回来经混频器（ 2 ）变频的中频信号进行采样，读取所述中频信号的幅度值，直到所述中频信号的幅度值降到噪声范围内，并在第二预设延迟时间后恢复待机状态，同时，所述单片机（ 5 ）按照时间顺序对所述中频信号进行分组，并计算得出每组中频信号幅度值的平均值；若该时段内出现多个幅度值大于所述预设值 M 的中频信号或者分组中频信号幅度值的平均值不是持续下降趋势，则所述人体离开的动作为无效动作，所述电器电源维持导通状态，否则进入步骤 S6 。  The method according to claim 2, wherein the step S5 comprises the following steps: the single chip microcomputer (5) controls the Doppler radar probe (1) Transmitting a continuous wave or pulsed microwave signal into a predetermined detection range; the Doppler radar probe (1) is reflected back to the mixer at a predetermined sampling frequency (2) The frequency-converted intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read until the amplitude value of the intermediate frequency signal falls within a noise range, and the standby state is restored after the second preset delay time, and at the same time, the single-chip microcomputer (5 The IF signals are grouped in chronological order, and an average value of the amplitude values of each group of IF signals is calculated; if a plurality of amplitude values appear in the period are greater than the preset value M The average value of the amplitude value of the intermediate frequency signal or the packet intermediate frequency signal is not a continuous downward trend, and the action of the human body leaving is an invalid action, and the electrical power source maintains the conduction state, otherwise the process proceeds to step S6.
  7. 根据权利要求 2 所述的方法，其特征在于，所述步骤 S6 包括以下的具体操作：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射连续微波信号，所述多普勒雷达探头（ 1 ）以预定的采样频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，并读取所述中频信号的幅度值，若在一预定的采样时间段内，没有再次检测到幅度值大于所述预设值 M 的中频信号时，则判断为无其他人体活动，所述单片机（ 5 ）控制所述继电器（ 6 ）断开，关闭所述电器电源。The method according to claim 2, wherein said step S6 comprises the following specific operation: said single chip microcomputer (5) controls said Doppler radar probe ( 1) transmitting a continuous microwave signal to a predetermined detection range, the Doppler radar probe (1) being reflected back by a mixer at a predetermined sampling frequency (2) The frequency-converted intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read. If the amplitude value is not detected again within a predetermined sampling period, the amplitude value is greater than the preset value. When the intermediate frequency signal is judged to be no other human activity, the single chip (5) controls the relay (6) to be turned off, and the electrical power of the electrical appliance is turned off.
  8. 根据权利要求 3 所述的方法，其特征在于，所述步骤 S1 包括以下步骤：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射脉冲微波信号；所述多普勒雷达探头（ 1 ）以预定的频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，读取所述中频信号的幅度值 An ，并将所述幅度值 An 与一设置的门限值 N 比较，若 An>N ，则进入步骤 S2 ，否则，重复步骤 S1 。The method according to claim 3, wherein said step S1 comprises the step of: said single chip microcomputer (5) controlling said Doppler radar probe (1) Transmitting a pulsed microwave signal to a predetermined detection range; the Doppler radar probe (1) samples the reflected intermediate frequency-converted (IF) frequency-converted intermediate frequency signal at a predetermined frequency, and reads the intermediate frequency signal Amplitude value An, and compares the amplitude value An with a set threshold N. If An>N, the process proceeds to step S2, otherwise, step S1 is repeated.
  9. 根据权利要求 3 所述的方法，其特征在于，所述步骤 S2 包括以下步骤：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头（ 1 ）以预定的采样频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，并读取所述中频信号的幅度值，若在第一预设延迟时间内持续存在幅度值大于所述门限值 N 的中频信号，则所述运动物体属于有效人体活动，进入步骤 S3 ，否则返回步骤 S1 。The method according to claim 3, wherein said step S2 comprises the step of: said single chip microcomputer (5) controlling said Doppler radar probe (1) Transmitting a continuous wave or pulsed microwave signal to a predetermined detection range, the Doppler radar probe (1) being reflected back by a mixer at a predetermined sampling frequency (2) The frequency conversion intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read, and if the amplitude value persists within the first preset delay time, the amplitude value is greater than the threshold value. The intermediate frequency signal, the moving object belongs to the effective human activity, proceeds to step S3, otherwise returns to step S1.
  10. 根据权利要求 3 所述的方法，其特征在于，所述步骤 S6 包括以下步骤：所述单片机（ 5 ）控制所述多普勒雷达探头（ 1 ）向预定的探测范围内发射连续波或者脉冲微波信号，所述多普勒雷达探头（ 1 ）以预定的采样频率对反射回来的经混频器（ 2 ）变频的中频信号进行采样，并读取所述中频信号的幅度值，若在一预定的采样时间段内，没有再次检测到幅度值大于所述预设值 M 的中频信号时，则判断为无其他人体活动，所述单片机（ 5 ）控制所述继电器（ 6 ）断开，关闭所述电器电源。The method according to claim 3, wherein said step S6 comprises the step of: said single chip microcomputer (5) controlling said Doppler radar probe (1) Transmitting a continuous wave or pulsed microwave signal to a predetermined detection range, the Doppler radar probe (1) being reflected back by a mixer at a predetermined sampling frequency (2) The frequency-converted intermediate frequency signal is sampled, and the amplitude value of the intermediate frequency signal is read. If the amplitude value is not detected again within a predetermined sampling period, the amplitude value is greater than the preset value. When the intermediate frequency signal is judged to be no other human activity, the single chip (5) controls the relay (6) to be turned off, and the electrical power of the electrical appliance is turned off.
  11. 一种微波感应控制装置，用于控制电器电源的导通或断开，其特征在于，该微波感应控制装置包括依次电性连接的多普勒雷达探头（ 1 ）、混频器（ 2 ）、信号放大器（ 2 ）、以及主控模块（ 4 ），所述主控模块（ 4 ）包括处理信号的单片机（ 5 ）和与所述单片机（ 5 ）及所述电器电源电性连接的继电器（ 6 ），其中，所述多普勒雷达探头（ 1 ）用于实时监测预定的探测范围内有无运动物体，所述单片机（ 5 ）用于在所述多普勒雷达探头（ 1 ）探测到所述探测范围内有运动物体时，判断所述运动物体是否为有效人体活动，并在判断所述运动物体为人体时控制电器电源导通；所述多普勒雷达探头（ 1 ）还用于实时监测所述探测范围内是否有人体离开的动作；所述单片机（ 5 ）还用于在所述多普勒雷达探头（ 1 ）探测到人体离开的动作时判断所述人体离开的动作是否为有效动作，并根据判断结果控制所述继电器（ 6 ）吸合或断开，进而控制所述电器电源的导通或断开。  A microwave induction control device for controlling conduction or disconnection of an electrical power source, wherein the microwave induction control device comprises a Doppler radar probe electrically connected in sequence (1 a mixer (2), a signal amplifier (2), and a main control module (4), the main control module (4) comprising a microcontroller (5) for processing signals and the microcontroller (5) And a relay (6) electrically connected to the electrical power source, wherein the Doppler radar probe (1) is used for real-time monitoring of the presence or absence of a moving object within a predetermined detection range, the single chip microcomputer (5) ) for the Doppler radar probe (1) When detecting that there is a moving object within the detection range, determining whether the moving object is an effective human activity, and controlling the electrical power supply to be turned on when determining that the moving object is a human body; the Doppler radar probe (1) It is also used to monitor in real time whether there is a movement of the human body in the detection range; the single chip (5) is also used in the Doppler radar probe (1) When detecting the movement of the human body, it is determined whether the movement of the human body is an effective action, and according to the judgment result, the relay (6) is controlled to be turned on or off, thereby controlling the conduction or disconnection of the electrical power source.
PCT/CN2013/088445 2013-12-03 2013-12-03 Microwave induction control method and apparatus WO2015081498A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/088445 WO2015081498A1 (en) 2013-12-03 2013-12-03 Microwave induction control method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/088445 WO2015081498A1 (en) 2013-12-03 2013-12-03 Microwave induction control method and apparatus

Publications (1)

Publication Number Publication Date
WO2015081498A1 true WO2015081498A1 (en) 2015-06-11

Family

ID=53272729

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/088445 WO2015081498A1 (en) 2013-12-03 2013-12-03 Microwave induction control method and apparatus

Country Status (1)

Country Link
WO (1) WO2015081498A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269885A (en) * 2017-06-27 2017-10-20 厦门英仕卫浴有限公司 A kind of rapid microwave sensing shower water knockout drum
CN108419347A (en) * 2018-05-15 2018-08-17 宁波恒剑光电科技有限公司 A kind of method of anti-interference microwave induced lamp and environment resistant microwave interference
CN108667159A (en) * 2018-08-01 2018-10-16 深圳硕日新能源科技有限公司 A kind of microwave induced system based on solar controller
CN110221568A (en) * 2019-07-08 2019-09-10 广东好太太科技集团股份有限公司 Based on microwave induced intelligent clothes airing machine system and microwave induced control method
CN110347089A (en) * 2019-07-29 2019-10-18 深圳迈睿智能科技有限公司 The control method of power supply base and electrical equipment
CN110501681A (en) * 2019-08-26 2019-11-26 许昌富奥星智能科技有限公司 A kind of Doppler radar chip verification method and device
CN111665483A (en) * 2020-05-07 2020-09-15 隔空（上海）智能科技有限公司 Moving target detection method of Doppler radar
CN112363115A (en) * 2020-10-27 2021-02-12 上海矽杰微电子有限公司 Method for resisting influence of severe weather on radar sensor
CN112799030A (en) * 2021-02-08 2021-05-14 北京富奥星电子技术有限公司 Method and device for realizing existence induction identification by using Doppler radar
CN113009463A (en) * 2021-01-29 2021-06-22 杭州涂鸦信息技术有限公司 Human body detection method and device
CN113838270A (en) * 2021-09-29 2021-12-24 成都市美幻科技有限公司 Earthquake early warning method and device, electronic equipment and storage medium
CN114582105A (en) * 2022-03-01 2022-06-03 福建环宇通信息科技股份公司 Window monitoring method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2286516Y (en) * 1996-08-02 1998-07-22 蔡永清 Fully automatic contrl illumination means for radar like human body survey
CN201672623U (en) * 2010-02-10 2010-12-15 刘仪 Energy saving air conditioning
CN201994524U (en) * 2011-03-18 2011-09-28 陈勇 Human-body-sensing safety socket
CN202075853U (en) * 2011-05-13 2011-12-14 傅小红 Light-emitting diode (LED) remote control electricity-saving device
CN202334725U (en) * 2011-11-29 2012-07-11 南充鑫源通讯技术有限公司 Television with wisdom eye
CN202583455U (en) * 2012-02-10 2012-12-05 南充鑫源通讯技术有限公司 Human-in-vehicle microwave detector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2286516Y (en) * 1996-08-02 1998-07-22 蔡永清 Fully automatic contrl illumination means for radar like human body survey
CN201672623U (en) * 2010-02-10 2010-12-15 刘仪 Energy saving air conditioning
CN201994524U (en) * 2011-03-18 2011-09-28 陈勇 Human-body-sensing safety socket
CN202075853U (en) * 2011-05-13 2011-12-14 傅小红 Light-emitting diode (LED) remote control electricity-saving device
CN202334725U (en) * 2011-11-29 2012-07-11 南充鑫源通讯技术有限公司 Television with wisdom eye
CN202583455U (en) * 2012-02-10 2012-12-05 南充鑫源通讯技术有限公司 Human-in-vehicle microwave detector

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269885A (en) * 2017-06-27 2017-10-20 厦门英仕卫浴有限公司 A kind of rapid microwave sensing shower water knockout drum
CN108419347A (en) * 2018-05-15 2018-08-17 宁波恒剑光电科技有限公司 A kind of method of anti-interference microwave induced lamp and environment resistant microwave interference
CN108667159A (en) * 2018-08-01 2018-10-16 深圳硕日新能源科技有限公司 A kind of microwave induced system based on solar controller
CN110221568A (en) * 2019-07-08 2019-09-10 广东好太太科技集团股份有限公司 Based on microwave induced intelligent clothes airing machine system and microwave induced control method
CN110347089A (en) * 2019-07-29 2019-10-18 深圳迈睿智能科技有限公司 The control method of power supply base and electrical equipment
CN110501681B (en) * 2019-08-26 2022-12-27 许昌富奥星智能科技有限公司 Doppler radar chip verification method and device
CN110501681A (en) * 2019-08-26 2019-11-26 许昌富奥星智能科技有限公司 A kind of Doppler radar chip verification method and device
CN111665483A (en) * 2020-05-07 2020-09-15 隔空（上海）智能科技有限公司 Moving target detection method of Doppler radar
CN111665483B (en) * 2020-05-07 2023-08-15 隔空（上海）智能科技有限公司 Moving target detection method of Doppler radar
CN112363115A (en) * 2020-10-27 2021-02-12 上海矽杰微电子有限公司 Method for resisting influence of severe weather on radar sensor
CN113009463A (en) * 2021-01-29 2021-06-22 杭州涂鸦信息技术有限公司 Human body detection method and device
CN113009463B (en) * 2021-01-29 2023-04-18 杭州涂鸦信息技术有限公司 Human body detection method and device
CN112799030A (en) * 2021-02-08 2021-05-14 北京富奥星电子技术有限公司 Method and device for realizing existence induction identification by using Doppler radar
CN113838270A (en) * 2021-09-29 2021-12-24 成都市美幻科技有限公司 Earthquake early warning method and device, electronic equipment and storage medium
CN114582105A (en) * 2022-03-01 2022-06-03 福建环宇通信息科技股份公司 Window monitoring method

Similar Documents

Publication Publication Date Title
WO2015081498A1 (en) Microwave induction control method and apparatus
CN104678828B (en) A kind of microwave induced control method
CN106527165B (en) Human body monitoring device, intellectual water closet and controlling intelligent household appliances
US9231353B2 (en) Socket having loading detecting function
DE69832259D1 (en) PRESENCE SENSOR AND ITS OPERATING PROCEDURE
CN203250384U (en) Smoke detection alarm system
CN203083017U (en) Safe and energy-saving control device of electric heater
CN109142997A (en) Switchgear detection system and method
CN204909107U (en) Human response detecting system that is close of electric rice cooker of intelligence
CN104933816A (en) Induction distance setting method and device for automatic induction security and protection system
CN104405668A (en) Fan control system with intelligent temperature control and antitheft control functions
CN103366490A (en) Electrical fire early-warning device and electrical fire early-warning method
CN104251502A (en) Control system for audio curve detection of boiling water in electromagnetic oven and method thereof
CN101661268A (en) Method for integrally controlling living room and human body count detection energy-saving control system
CN202583359U (en) Start-up and shut-down detecting system of household appliances
CN101592923B (en) Automatic induction system and method
CN103543642A (en) Display equipment control system and method
Chuah et al. Thermal sensor based human presence detection for smart home application
KR101291151B1 (en) The low power consumption concent for blocking the standby power using ir signal
CN204270967U (en) Band drives the Standard type high-pressure vacuum switch of bird function
KR101114820B1 (en) Moving detection sensor using microwave
CN103778740B (en) A kind of balcony intelligent anti-theft alarming device and method
CN105427514B (en) Pyroelectricity method for recognizing fire disaster based on automatic track and localization jet extinguishing device
CN203825762U (en) Balcony intelligent burglar alarm
CN203704252U (en) Automatic cold air machine

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13898700

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13898700

Country of ref document: EP

Kind code of ref document: A1