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CN116699604A - A control method and system based on PIR and radar dual detection sensor - Google Patents

A control method and system based on PIR and radar dual detection sensor Download PDF

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CN116699604A
CN116699604A CN202310672157.8A CN202310672157A CN116699604A CN 116699604 A CN116699604 A CN 116699604A CN 202310672157 A CN202310672157 A CN 202310672157A CN 116699604 A CN116699604 A CN 116699604A
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radar
pir
control unit
unit mcu
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赵少武
陆泽豪
张海江
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Shenzhen Chiprising Microelectronics Co ltd
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • 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
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/005—Prospecting or detecting by optical means operating with millimetre waves, e.g. measuring the black losey radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output

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  • Radar, Positioning & Navigation (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
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  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

本发明涉及门禁技术领域，具体涉及为一种基于PIR和雷达双鉴探测传感器的控制方法及系统，其控制方法包括：雷达探测器启动探测并获取运动目标移动信号；若所述运动目标移动信号强于所述预设置的雷达信号阈值，则所述雷达探测器向所述微控制单元MCU输出高电平信号；红外传感器PIR启动探测并向所述微控制单元MCU输出数字信号；所述微控制单元根据通信协议对所述数字信号进行解析；若所述解析后的信号数据强于预设置的红外传感器信号阈值，则输出双鉴结果为有目标。本发明通过PIR与雷达结合形成双鉴探测器，只对人体(动物)移动做出报警，降低误报漏报的概率，探测稳定可靠，抗干扰能力强，性能远超无雷达功能的各种PIR红外传感器。

The present invention relates to the technical field of access control, in particular to a control method and system based on PIR and radar dual detection sensors. Stronger than the preset radar signal threshold, the radar detector outputs a high-level signal to the micro control unit MCU; the infrared sensor PIR starts detection and outputs a digital signal to the micro control unit MCU; The control unit analyzes the digital signal according to the communication protocol; if the analyzed signal data is stronger than the preset infrared sensor signal threshold, it outputs a double-identification result as a target. The invention combines PIR and radar to form a double-detection detector, which only makes an alarm for the movement of the human body (animal), reduces the probability of false positives and negative negatives, and has stable and reliable detection, strong anti-interference ability, and performance far superior to various types without radar functions. PIR infrared sensor.

Description

一种基于PIR和雷达双鉴探测传感器的控制方法及系统A control method and system based on PIR and radar dual detection sensor

技术领域technical field

本发明涉及门禁技术领域，具体涉及为一种基于PIR和雷达双鉴探测传感器的控制方法及系统。The invention relates to the technical field of access control, in particular to a control method and system based on PIR and radar dual detection sensors.

背景技术Background technique

可视对讲智慧门铃、智慧门禁系统等广泛应用于人们的日常生活中，它在改善人们的生活环境方面起到不可磨灭的作用。但是目前使用的可视对讲智慧门铃通常采用单独的红外PIR传感器，这样会导致智慧门铃容易受环境温度，光照强度以及楼道干扰等影响，从而导致误报率偏高，进而导致错过最佳的摄像头录制开启时间等。Video intercom smart doorbell, smart access control system, etc. are widely used in people's daily life, and it plays an indelible role in improving people's living environment. However, the currently used video intercom smart doorbell usually uses a separate infrared PIR sensor, which will cause the smart doorbell to be easily affected by ambient temperature, light intensity, and corridor interference, which will lead to a high false alarm rate and miss the best Camera recording start time, etc.

发明内容Contents of the invention

为解决上述的技术问题，本发明提供了一种基于PIR和雷达双鉴探测传感器的控制方法及系统，具体的技术方案为：In order to solve the above-mentioned technical problems, the present invention provides a control method and system based on PIR and radar dual detection sensors, and the specific technical solution is:

一种基于PIR和雷达双鉴探测传感器的控制方法，包括如下步骤：A kind of control method based on PIR and radar dual inspection sensor, comprises the following steps:

在初始状态下，微控制单元MCU处于低功耗模式，雷达探测器启动探测并获取运动目标移动信号，通过微控制单元MCU将运动目标移动信号的强度与预设置的雷达信号阈值进行比较；In the initial state, the micro control unit MCU is in the low power consumption mode, the radar detector starts to detect and obtain the moving signal of the moving target, and compares the strength of the moving target moving signal with the preset radar signal threshold through the micro control unit MCU;

若运动目标移动信号强于预设置的雷达信号阈值，则雷达探测器向微控制单元MCU输出高电平信号，以唤醒微控制单元MCU；If the moving signal of the moving target is stronger than the preset radar signal threshold, the radar detector outputs a high-level signal to the micro control unit MCU to wake up the micro control unit MCU;

微控制单元MCU基于输入的高电平信号退出低功耗模式；The micro control unit MCU exits the low power consumption mode based on the input high level signal;

红外传感器PIR启动探测并向微控制单元MCU输出数字信号；The infrared sensor PIR starts to detect and outputs a digital signal to the micro control unit MCU;

微控制单元MCU获取数字信号，并根据通信协议对数字信号进行解析，得到解析后的信号数据；The micro control unit MCU acquires the digital signal, and analyzes the digital signal according to the communication protocol to obtain the analyzed signal data;

通过微控制单元MCU将解析后的信号数据与预设置的红外传感器信号阈值进行比较；Compare the analyzed signal data with the preset infrared sensor signal threshold through the micro control unit MCU;

若解析后的信号数据强于预设置的红外传感器信号阈值，则输出双鉴结果为有目标；If the analyzed signal data is stronger than the pre-set infrared sensor signal threshold, the output double-check result is a target;

微控制单元MCU根据双鉴结果向智慧门铃输出控制信号，根据控制信号智慧门铃开启摄像头以录制当前画面。The micro-control unit MCU outputs a control signal to the smart doorbell according to the result of the double inspection, and according to the control signal, the smart doorbell turns on the camera to record the current picture.

在一种优选的实现方式中，雷达探测器的工作过程为：In a preferred implementation, the working process of the radar detector is:

雷达探测器发送扫频信号，扫频信号经由运动目标反射后再次被雷达探测器接收，通过测量接收的扫频信号与发送的扫频信号的频率差，将频率差进行傅里叶变换，得到频谱，频谱的最大值为峰值频点；The radar detector sends a sweep signal, and the sweep signal is reflected by the moving target and is received by the radar detector again. By measuring the frequency difference between the received sweep signal and the sent sweep signal, the frequency difference is Fourier transformed to obtain Spectrum, the maximum value of the spectrum is the peak frequency point;

目标物体与雷达的距离，具体的计算过程为：The distance between the target object and the radar, the specific calculation process is:

R＝(C*T*fred)/(2*B)R＝(C*T*fred)/(2*B)

其中，R表示为距离信息，C为光速，T为采样时间，B为人体感知模块的工作带宽，freq为峰值频点所对应的频率，其中，freq＝峰值频点*数据采样频率/采样点数。Among them, R represents the distance information, C is the speed of light, T is the sampling time, B is the working bandwidth of the human body perception module, and freq is the frequency corresponding to the peak frequency point, where freq=peak frequency point*data sampling frequency/number of sampling points .

在一种优选的实现方式中，控制方法还包括：In a preferred implementation, the control method also includes:

若运动目标移动信号弱于预设置的雷达信号阈值，则微控制单元MCU重新进入低功耗模式。If the moving signal of the moving target is weaker than the preset radar signal threshold, the micro control unit MCU will re-enter the low power consumption mode.

在一种优选的实现方式中，控制方法还包括：In a preferred implementation, the control method also includes:

若运动目标移动信号弱于预设置的雷达信号阈值，则输出双鉴结果判断为无目标，微控制单元MCU重新进入低功耗模式。If the moving signal of the moving target is weaker than the preset radar signal threshold, the output of the double-check result is judged as no target, and the micro control unit MCU re-enters the low power consumption mode.

在一种优选的实现方式中，红外传感器PI R采用数字型PI R，或红外传感器PI R采用模拟型PI R。In a preferred implementation manner, the infrared sensor PI R adopts a digital type PI R, or the infrared sensor PI R adopts an analog type PI R.

在一种优选的实现方式中，微控制单元MCU初始状态为休眠状态，若使用数字型PIR，则控制方法中依靠雷达探测器唤醒微控制单元MCU；若使用模拟型PI R，则控制方法中依靠模拟型PI R唤醒微控制单元MCU。In a preferred implementation, the initial state of the micro-control unit MCU is a dormant state. If a digital PIR is used, the control method relies on the radar detector to wake up the micro-control unit MCU; if an analog PI R is used, the control method Rely on the analog PI R to wake up the microcontroller unit MCU.

在一种优选的实现方式中，方法还包括：In a preferred implementation, the method also includes:

智慧门铃的实际探测距离由红外传感器PI R和雷达探测器两者之间的探测距离的最小值决定。The actual detection distance of the smart doorbell is determined by the minimum detection distance between the infrared sensor PI R and the radar detector.

在一种优选的实现方式中，雷达探测器为5.8Ghz的工作波段。In a preferred implementation manner, the radar detector is in a working band of 5.8Ghz.

一种双鉴探测系统，系统用以实现基于PI R和雷达双鉴探测传感器的控制方法，系统包括：A kind of dual identification detection system, the system is used for realizing the control method based on PI R and radar dual identification detection sensor, system comprises:

微控制单元MCU，微控制单元MCU用于将运动目标移动信号的强度与预设置的雷达信号阈值进行比较，还用于根据通信协议对数字信号进行解析，还用于将解析后的信号数据与预设置的红外传感器信号阈值进行比较，输出双鉴结果与控制信号；Micro control unit MCU, the micro control unit MCU is used to compare the strength of the moving signal of the moving target with the preset radar signal threshold, and to analyze the digital signal according to the communication protocol, and to compare the analyzed signal data with the Compare the preset infrared sensor signal threshold, and output the double-check result and control signal;

雷达探测器，雷达探测器用于获取运动目标的移动信号并向微控制单元MCU输出运动目标移动信号；The radar detector is used to obtain the moving signal of the moving target and output the moving signal of the moving target to the micro control unit MCU;

红外探测器PI R，红外探测器PI R用以向微控制单元MCU输出数字信号，与雷达探测器配合形成双鉴探测。The infrared detector PI R is used to output digital signals to the micro control unit MCU, and cooperates with the radar detector to form a double detection.

本发明的有益效果：Beneficial effects of the present invention:

本发明通过红外传感器+雷达的双鉴探测器，无运动目标时，整个系统处于低功耗模式，当红外传感器检测数据超出阈值时，即判断出现运动目标时，启动5.8g雷达进行二次判断，当两次判断结果都为真时，此时上报给智慧门铃，开启摄像头从而录制当前的画面，经过MCU分析处理，只对人体(动物)移动做出报警，同时具有微动存在检测功能，降低误报漏报的概率，探测稳定可靠，抗干扰能力强，性能远超无雷达功能的各种PI R红外传感器。The present invention uses infrared sensor + radar dual detector, when there is no moving target, the whole system is in low power consumption mode, when the detection data of the infrared sensor exceeds the threshold, that is, when it is judged that there is a moving target, the 5.8g radar is started for secondary judgment , when the two judgment results are true, report to the smart doorbell at this time, turn on the camera to record the current picture, after analysis and processing by the MCU, it will only give an alarm for the movement of the human body (animal), and at the same time it has the function of micro-motion detection. Reduce the probability of false positives and false negatives, stable and reliable detection, strong anti-interference ability, and performance far superior to various PI R infrared sensors without radar function.

附图说明Description of drawings

图1为本发明控制方法的流程示意图。Fig. 1 is a schematic flow chart of the control method of the present invention.

图2为本发明控制方法的工作原理示意图。Fig. 2 is a schematic diagram of the working principle of the control method of the present invention.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore It should not be construed as a limitation of the present invention.

此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中,“多个”的含义是两个或两个以上，除非另有明确具体的限定。In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是连接,也可以是可拆卸连接,或成一体；可以是机械连接,也可以是电连接；可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。In the present invention, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense unless otherwise clearly specified and limited, for example, it may be a connection or a detachable connection, Or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components.

如图1和图2所示，一种基于PI R和雷达双鉴探测传感器的控制方法，包括如下步骤：As shown in Fig. 1 and Fig. 2, a kind of control method based on PI R and radar double inspection sensor, comprises the following steps:

在初始状态下，微控制单元MCU处于低功耗模式，雷达探测器启动探测并获取运动目标移动信号，通过微控制单元MCU将运动目标移动信号的强度与预设置的雷达信号阈值进行比较；In the initial state, the micro control unit MCU is in the low power consumption mode, the radar detector starts to detect and obtain the moving signal of the moving target, and compares the strength of the moving target moving signal with the preset radar signal threshold through the micro control unit MCU;

若运动目标移动信号强于预设置的雷达信号阈值，则雷达探测器向微控制单元MCU输出高电平信号，以唤醒微控制单元MCU；If the moving signal of the moving target is stronger than the preset radar signal threshold, the radar detector outputs a high-level signal to the micro control unit MCU to wake up the micro control unit MCU;

微控制单元MCU基于输入的高电平信号退出低功耗模式；The micro control unit MCU exits the low power consumption mode based on the input high level signal;

红外传感器PI R启动探测并向微控制单元MCU输出数字信号；The infrared sensor PI R starts detection and outputs a digital signal to the micro control unit MCU;

微控制单元MCU获取数字信号，并根据通信协议对数字信号进行解析，得到解析后的信号数据；The micro control unit MCU acquires the digital signal, and analyzes the digital signal according to the communication protocol to obtain the analyzed signal data;

通过微控制单元MCU将解析后的信号数据与预设置的红外传感器信号阈值进行比较；Compare the analyzed signal data with the preset infrared sensor signal threshold through the micro control unit MCU;

若解析后的信号数据强于预设置的红外传感器信号阈值，则输出双鉴结果为有目标；If the analyzed signal data is stronger than the pre-set infrared sensor signal threshold, the output double-check result is a target;

微控制单元MCU根据双鉴结果向智慧门铃输出控制信号，根据控制信号智慧门铃开启摄像头以录制当前画面。The micro-control unit MCU outputs a control signal to the smart doorbell according to the result of the double inspection, and according to the control signal, the smart doorbell turns on the camera to record the current picture.

在一种优选的实现方式中，雷达探测器的工作过程为：In a preferred implementation, the working process of the radar detector is:

雷达探测器发送扫频信号，扫频信号经由运动目标反射后再次被雷达探测器接收，通过测量接收的扫频信号与发送的扫频信号的频率差，将频率差进行傅里叶变换，得到频谱，频谱的最大值为峰值频点；The radar detector sends a sweep signal, and the sweep signal is reflected by the moving target and is received by the radar detector again. By measuring the frequency difference between the received sweep signal and the sent sweep signal, the frequency difference is Fourier transformed to obtain Spectrum, the maximum value of the spectrum is the peak frequency point;

目标物体与雷达的距离，具体的计算过程为：The distance between the target object and the radar, the specific calculation process is:

R＝(C*T*fred)/(2*B)R＝(C*T*fred)/(2*B)

其中，R表示为距离信息，C为光速，T为采样时间，B为人体感知模块的工作带宽，freq为峰值频点所对应的频率，其中，freq＝峰值频点*数据采样频率/采样点数。Among them, R represents the distance information, C is the speed of light, T is the sampling time, B is the working bandwidth of the human body perception module, and freq is the frequency corresponding to the peak frequency point, where freq=peak frequency point*data sampling frequency/number of sampling points .

在一种优选的实现方式中，控制方法还包括：In a preferred implementation, the control method also includes:

若运动目标移动信号弱于预设置的雷达信号阈值，则输出双鉴结果判断为无目标，微控制单元MCU重新进入低功耗模式，低功耗模式为心跳包工作模式。If the moving signal of the moving target is weaker than the preset radar signal threshold, the output double-check result is judged as no target, and the micro control unit MCU re-enters the low power consumption mode, which is the heartbeat packet working mode.

在一种优选的实现方式中，控制方法还包括：In a preferred implementation, the control method also includes:

若解析后的信号数据未超过预设PI R阈值，则双鉴结果判断为无目标，微控制单元MCU重新进入低功耗模式。If the analyzed signal data does not exceed the preset PI R threshold, then the result of the double identification is judged as no target, and the micro control unit MCU re-enters the low power consumption mode.

在一种优选的实现方式中，红外传感器PI R采用数字型PI R，或红外传感器PI R采用模拟型PI R。In a preferred implementation manner, the infrared sensor PI R adopts a digital type PI R, or the infrared sensor PI R adopts an analog type PI R.

在一种优选的实现方式中，微控制单元MCU初始状态为休眠状态，若使用数字型PIR，则控制方法中依靠雷达探测器唤醒微控制单元MCU；若使用模拟型PI R，则控制方法中依靠模拟型PI R唤醒微控制单元MCU。In a preferred implementation, the initial state of the micro-control unit MCU is a dormant state. If a digital PIR is used, the control method relies on the radar detector to wake up the micro-control unit MCU; if an analog PI R is used, the control method Rely on the analog PI R to wake up the microcontroller unit MCU.

在一种优选的实现方式中，方法还包括：In a preferred implementation, the method also includes:

智慧门铃的实际探测距离由红外传感器PI R和雷达探测器两者之间的探测距离的最小值决定。The actual detection distance of the smart doorbell is determined by the minimum detection distance between the infrared sensor PI R and the radar detector.

在一种优选的实现方式中，雷达探测器为5.8Ghz的工作波段。In a preferred implementation manner, the radar detector is in a working band of 5.8Ghz.

一种双鉴探测系统，系统用以实现基于PI R和雷达双鉴探测传感器的控制方法，系统包括：A kind of dual identification detection system, the system is used for realizing the control method based on PI R and radar dual identification detection sensor, system comprises:

微控制单元MCU，微控制单元MCU用于将运动目标移动信号的强度与预设置的雷达信号阈值进行比较，还用于根据通信协议对数字信号进行解析，还用于将解析后的信号数据与预设置的红外传感器信号阈值进行比较，输出双鉴结果与控制信号；Micro control unit MCU, the micro control unit MCU is used to compare the strength of the moving signal of the moving target with the preset radar signal threshold, and to analyze the digital signal according to the communication protocol, and to compare the analyzed signal data with the Compare the preset infrared sensor signal threshold, and output the double-check result and control signal;

雷达探测器，雷达探测器用于获取运动目标的移动信号并向微控制单元MCU输出运动目标移动信号；The radar detector is used to obtain the moving signal of the moving target and output the moving signal of the moving target to the micro control unit MCU;

红外探测器PI R，红外探测器PI R用以向微控制单元MCU输出数字信号，与雷达探测器配合形成双鉴探测。The infrared detector PI R is used to output digital signals to the micro control unit MCU, and cooperates with the radar detector to form a double detection.

本发明通过红外传感器+雷达的双鉴探测器，无运动目标时，整个系统处于低功耗模式，当红外传感器检测数据超出阈值时，即判断出现运动目标时，启动5.8g雷达进行二次判断，当两次判断结果都为真时，此时上报给智慧门铃，开启摄像头从而录制当前的画面，经过MCU分析处理，只对人体(动物)移动做出报警，同时具有微动存在检测功能，降低误报漏报的概率，探测稳定可靠，抗干扰能力强，性能远超无雷达功能的各种PI R红外传感器。The present invention uses infrared sensor + radar dual detector, when there is no moving target, the whole system is in low power consumption mode, when the detection data of the infrared sensor exceeds the threshold, that is, when it is judged that there is a moving target, the 5.8g radar is started for secondary judgment , when the two judgment results are true, report to the smart doorbell at this time, turn on the camera to record the current picture, after analysis and processing by the MCU, it will only give an alarm for the movement of the human body (animal), and at the same time it has the function of micro-motion detection. Reduce the probability of false positives and false negatives, stable and reliable detection, strong anti-interference ability, and performance far superior to various PI R infrared sensors without radar function.

以上所述仅是本发明的优选实施方式，其描述较为具体和详细，但并不能因此理解为对发明专利范围的限制，应当指出的是，在不脱离本发明构思的前提下，还可以做出若干改进以及变形，这些都属于本发明的保护范围。The above is only a preferred embodiment of the present invention, and its description is more specific and detailed, but it should not be understood as limiting the scope of the patent for the invention. It should be pointed out that, without departing from the concept of the present invention, other Several improvements and modifications are made, all of which belong to the protection scope of the present invention.

Claims (9)

1. The control method based on the PIR and radar double-detection sensor is characterized by comprising the following steps:
in an initial state, a micro control unit MCU is in a low power consumption mode, a radar detector starts to detect and acquire a moving target moving signal, and the intensity of the moving target moving signal is compared with a preset radar signal threshold value through the micro control unit MCU;
if the moving target moving signal is stronger than the preset radar signal threshold value, the radar detector outputs a high-level signal to the micro control unit MCU so as to wake up the micro control unit MCU;
the MCU exits a low power consumption mode based on the input high level signal;
the PIR starts detection and outputs a digital signal to the MCU;
the MCU acquires the digital signal, analyzes the digital signal according to a communication protocol and obtains analyzed signal data;
comparing the analyzed signal data with a preset infrared sensor signal threshold value through the MCU;
if the analyzed signal data is stronger than the preset signal threshold value of the infrared sensor, outputting a double-authentication result as a target;
the micro control unit MCU outputs a control signal to the intelligent doorbell according to the double-authentication result, and the intelligent doorbell starts a camera to record a current picture according to the control signal.
2. The control method based on the PIR and radar dual-discrimination detection sensor according to claim 1, wherein the working process of the radar detector is as follows:
the radar detector sends a sweep frequency signal, the sweep frequency signal is received by the radar detector again after being reflected by a moving target, and the frequency difference is subjected to Fourier transform by measuring the frequency difference of the received sweep frequency signal and the sent sweep frequency signal to obtain a frequency spectrum, wherein the maximum value of the frequency spectrum is a peak frequency point;
the specific calculation process of the distance between the target object and the radar is as follows:
R＝(C*T*fred)/(2*B)
wherein R represents distance information, C represents light speed, T represents sampling time, B represents working bandwidth of the human body sensing module, freq represents frequency corresponding to a peak frequency point, and freq=peak frequency point is data sampling frequency/sampling point number.
3. The PIR and radar dual-discrimination sensor based control method according to claim 1, further including:
and if the moving target moving signal is weaker than the preset radar signal threshold value, the micro control unit MCU reenters a low-power consumption mode.
4. The PIR and radar dual-discrimination sensor based control method according to claim 1, further including:
and if the analyzed signal data is weaker than the preset infrared sensor signal threshold, outputting a double-authentication result to judge that no target exists, and enabling the micro control unit MCU to reenter a low-power consumption mode.
5. The PIR and radar dual-discrimination sensor based control method according to claim 1, wherein said infrared sensor PIR uses digital PIR or said infrared sensor PIR uses analog PIR.
6. The control method based on PIR and radar dual-detection sensor according to claim 5, wherein the initial state of the micro control unit MCU is a sleep state, and if digital PIR is used, the control method wakes up the micro control unit MCU by means of a radar detector; if the analog PIR is used, the micro control unit MCU is awakened by the analog PIR in the control method.
7. The PIR and radar dual-discrimination sensor based control method of claim 1, further including:
the actual detection distance of the smart doorbell is determined by the minimum value of the detection distances between the infrared sensor PIR and the radar detector.
8. The PIR and radar dual-discrimination sensor based control method according to claim 1, wherein said radar detector is in an operating band of 5.8 Ghz.
9. A dual-discrimination detection system for implementing a PIR and radar dual-discrimination detection sensor based control method as claimed in any one of claims 1 to 8, said system comprising:
the micro control unit MCU is used for comparing the intensity of the moving signal of the moving target with a preset radar signal threshold value, analyzing the digital signal according to a communication protocol, comparing analyzed signal data with a preset infrared sensor signal threshold value and outputting a double-authentication result and a control signal;
the radar detector is used for acquiring a moving signal of a moving target and outputting the moving signal of the moving target to the MCU;
the infrared detector PIR is used for outputting digital signals to the MCU and is matched with the radar detector to form double-detection.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119485009A (en) * 2025-01-14 2025-02-18 浙江大华技术股份有限公司 Camera wake-up method, monitoring system, electronic device and storage medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202103759U (en) * 2011-03-09 2012-01-04 中国人民解放军国防科学技术大学 Low power consumption video camera system based on target detection
CN106534634A (en) * 2016-11-08 2017-03-22 天津华来科技有限公司 Monitoring camera
CN111508127A (en) * 2020-04-02 2020-08-07 厦门立林科技有限公司 Intelligent control method of access control system and access control system
CN113109806A (en) * 2021-04-09 2021-07-13 青岛易来智能科技股份有限公司 Low-power consumption target monitoring device, method and system
CN113537035A (en) * 2021-07-12 2021-10-22 宁波溪棠信息科技有限公司 Human body target detection method, device, electronic device and storage medium
CN215954384U (en) * 2021-06-09 2022-03-04 立讯电子科技（昆山）有限公司 Monitoring system and monitoring doorbell
CN115909622A (en) * 2022-09-26 2023-04-04 上海创米智能科技有限公司 Low-power-consumption intelligent nursing system and method and intelligent door
CN219143118U (en) * 2022-12-21 2023-06-06 深圳市刻锐智能科技有限公司 Dual-detection infrared radar detector control circuit and detector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202103759U (en) * 2011-03-09 2012-01-04 中国人民解放军国防科学技术大学 Low power consumption video camera system based on target detection
CN106534634A (en) * 2016-11-08 2017-03-22 天津华来科技有限公司 Monitoring camera
CN111508127A (en) * 2020-04-02 2020-08-07 厦门立林科技有限公司 Intelligent control method of access control system and access control system
CN113109806A (en) * 2021-04-09 2021-07-13 青岛易来智能科技股份有限公司 Low-power consumption target monitoring device, method and system
CN215954384U (en) * 2021-06-09 2022-03-04 立讯电子科技（昆山）有限公司 Monitoring system and monitoring doorbell
CN113537035A (en) * 2021-07-12 2021-10-22 宁波溪棠信息科技有限公司 Human body target detection method, device, electronic device and storage medium
CN115909622A (en) * 2022-09-26 2023-04-04 上海创米智能科技有限公司 Low-power-consumption intelligent nursing system and method and intelligent door
CN219143118U (en) * 2022-12-21 2023-06-06 深圳市刻锐智能科技有限公司 Dual-detection infrared radar detector control circuit and detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119485009A (en) * 2025-01-14 2025-02-18 浙江大华技术股份有限公司 Camera wake-up method, monitoring system, electronic device and storage medium

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