WO2024088300A1 - 一种人体位置探测方法、系统、装置及智能家居设备 - Google Patents

一种人体位置探测方法、系统、装置及智能家居设备 Download PDF

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Publication number
WO2024088300A1
WO2024088300A1 PCT/CN2023/126434 CN2023126434W WO2024088300A1 WO 2024088300 A1 WO2024088300 A1 WO 2024088300A1 CN 2023126434 W CN2023126434 W CN 2023126434W WO 2024088300 A1 WO2024088300 A1 WO 2024088300A1
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Prior art keywords
boundary
pyroelectric sensor
width
interval
human body
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PCT/CN2023/126434
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English (en)
French (fr)
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田勇
郜广慧
郝明亮
孙武
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郑州炜盛电子科技有限公司
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Publication of WO2024088300A1 publication Critical patent/WO2024088300A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
    • 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

Definitions

  • the present invention belongs to the field of sensors, and in particular, relates to a method, system, device and smart home equipment for detecting a human position.
  • Human position detection is a common function of smart home appliances, which is used to detect the specific position of the human body. According to the position of the human body, the corresponding functions of smart home appliances show different states. For example, the light is selectively turned on or off according to the position of the human body, and the air conditioner or fan sends air to the area where the human body is located, or avoids the area where the human body is located.
  • the human position detection device On a vertical air conditioner, the human position detection device is generally composed of a single or multiple arrays of pyroelectric sensors. A single sensor measures accurately, but the measurement range is very limited.
  • the purpose of the present invention is to provide a human position detection method, system, device and smart home equipment in view of the deficiencies in the prior art.
  • a first aspect of the present invention provides a method for detecting a human body position based on a pyroelectric sensor, comprising:
  • the pyroelectric sensor is used to scan and collect the temperature data of the detection area; the temperature data that is greater than or equal to the minimum temperature threshold and less than or equal to the maximum temperature threshold is selected, and the selected temperature data is
  • the temperature data are connected to outline the temperature distribution contour, which is divided into n intervals, namely interval 1-1, interval 1-2, interval 1-3, ..., interval 1-n; the width of each interval is calculated, W1-1, W1-2, W1-3, ..., W1-n;
  • the temperature data of the detection area is scanned again, and the temperature data that is greater than or equal to the minimum temperature threshold and less than or equal to the maximum temperature threshold is selected, and the selected temperature data are connected to outline the temperature distribution contour to form n intervals, namely interval 2-1, interval 2-2, interval 2-3, ..., interval 2-n; the width of each interval W2-1, W2-2, W2-3, ..., W2-n is calculated;
  • the corresponding interval W2-n is determined to be a occupied interval.
  • the detection area includes three independent areas A, B, and C divided by the detection space, area A consists of boundary 1 and boundary 2, area B consists of boundary 3 and boundary 4, and area C consists of boundary 5 and boundary 6, wherein boundary 2 is parallel to boundary 3, and boundary 4 is parallel to boundary 5;
  • Pyroelectric sensors for sensing thermal radiation signals in regions A, B, and C are respectively arranged in regions A, B, and C.
  • the human body position detection method based on the pyroelectric sensor further includes:
  • the corresponding interval W2-n is determined to be a human interval.
  • a second aspect of the present invention provides a human body position detection system based on a pyroelectric sensor, comprising:
  • the pyroelectric sensor is used to scan and collect temperature data of the detection area multiple times at an interval time t;
  • a data analysis module is connected to the pyroelectric sensor and is used to select the temperature data that is greater than or equal to the minimum temperature threshold and less than or equal to the maximum temperature threshold from the temperature data detected each time, and connect the selected temperature data to outline the temperature distribution profile to form n intervals, and calculate the width of each interval;
  • the data judgment module is connected to the data analysis module and is used to receive width data and calculate the difference in width between corresponding intervals of temperature data detected twice adjacently. If the difference is greater than or equal to a width difference threshold, the corresponding interval is judged to be a occupied interval.
  • the detection area includes three independent areas A, B, and C divided by the detection space, area A consists of boundary 1 and boundary 2, area B consists of boundary 3 and boundary 4, and area C consists of boundary 5 and boundary 6, wherein boundary 2 is parallel to boundary 3, and boundary 4 is parallel to boundary 5;
  • Pyroelectric sensors for sensing thermal radiation signals in regions A, B, and C are respectively arranged in regions A, B, and C.
  • the data judgment module is also used to judge that the corresponding interval W2-n is a human interval when the difference Cn is less than the width difference threshold, if the difference Cn is equal to 0 and the width W1-n and the width W2-n are both greater than or equal to the minimum human body width.
  • the third aspect of the present invention provides a human position detection device based on a pyroelectric sensor, comprising: a housing, a lens fixed to the top of the housing, a pyroelectric sensor fixed to the bottom of the housing, and a circuit board fixedly connected to the housing;
  • the data analysis module and the data judgment module in the human body position detection system based on the pyroelectric sensor are arranged on the circuit board;
  • Three pyroelectric sensors are arranged in an array, the first pyroelectric sensor and the third pyroelectric sensor at the two ends are placed at a certain angle, and the second pyroelectric sensor in the middle is placed vertically to form a fan-shaped detection area;
  • the lens includes three lenses arranged corresponding to three pyroelectric sensors;
  • a detection boundary limiting plate is arranged between each lens and the corresponding pyroelectric sensor, with the left detection boundary of the first pyroelectric sensor as boundary 1, the right detection boundary of the first pyroelectric sensor as boundary 2, the left detection boundary of the second pyroelectric sensor as boundary 3, the right detection boundary of the second pyroelectric sensor as boundary 4, the left detection boundary of the third pyroelectric sensor as boundary 5, and the right detection boundary of the third pyroelectric sensor as boundary 6.
  • the lens is a Fresnel lens.
  • the first pyroelectric sensor and the third pyroelectric sensor are symmetrically placed and inclined at an angle of 45° to 85°.
  • a positioning hole is provided on the circuit board, a positioning column used in conjunction with the positioning hole is provided on the shell, and the shell is fixed to the circuit board by screws.
  • a fourth aspect of the present invention provides a smart home device, comprising a controller, the human body position detection device based on the pyroelectric sensor, and an execution module;
  • the controller controls the connection between the human body position detection device based on the pyroelectric sensor and the execution module, and controls the execution module to perform corresponding actions when the human body position detection device based on the pyroelectric sensor detects the human body position.
  • the execution module is a lamp, an air conditioner or a fan.
  • the present invention has outstanding substantive features and significant progress compared to the prior art. Specifically:
  • the present invention determines whether there is a person not only based on temperature, but also on whether the target object is moving, thereby reducing misjudgment caused by non-human fever, and position detection is more accurate and reliable;
  • the present invention uses three pyroelectric sensor arrays for detection, which have reasonable position layout, wide detection range, can adapt to more complex and harsh environments, and have wider applications;
  • the internal optical path structure design of the device of the present invention forms three independent detection areas A, B, and C.
  • the detected signals do not affect each other, and the detection is more accurate;
  • a Fresnel lens is added to the front end of the device of the present invention to enhance the signal
  • the overall structure of the device of the present invention is simple, small in size, and easy to install and maintain.
  • FIG1 is an overall flow chart of a method for detecting a human body position.
  • Figure 2 is the temperature profile distribution diagram of the initial scan.
  • FIG3 is a temperature profile distribution diagram scanned at intervals of time t.
  • FIG. 4 is an appearance diagram of a human body position detection device.
  • FIG5 is a schematic diagram of the detection area division.
  • FIG. 6 is a schematic diagram of the assembly of a human body position detection device.
  • FIG7 is a schematic diagram of the internal optical path design
  • FIG8 is a schematic diagram of a pyroelectric sensor layout.
  • 1 is a lens
  • 2 is a housing
  • 3 is a pyroelectric sensor
  • 4 is a circuit board
  • 5 is a screw
  • 31 is a first pyroelectric sensor
  • 32 is a second pyroelectric sensor
  • 33 is a third pyroelectric sensor.
  • this embodiment provides a method for detecting a human position based on a pyroelectric sensor, comprising:
  • the temperature data of the detection area is collected by scanning with a pyroelectric sensor; the temperature data greater than or equal to the minimum temperature threshold and less than or equal to the maximum temperature threshold are selected, and the selected temperature data are connected to outline the temperature distribution contour to form n intervals, as shown in FIG2, namely, interval 1-1, interval 1-2, interval 1-3, ..., interval 1-n; the width of each interval W1-1, W1-2, W1-3, ..., W1-n is calculated;
  • the temperature data of the detection area is scanned again to collect the temperature data that is greater than or equal to the minimum temperature threshold and less than or equal to the maximum temperature threshold, and the selected temperature data are connected to outline the temperature distribution contour to form n intervals, as shown in FIG3, namely, interval 2-1, interval 2-2, interval 2-3, ..., interval 2-n; the width of each interval W2-1, W2-2, W2-3, ..., W2-n is calculated;
  • the corresponding interval W2-n is determined to be a occupied interval.
  • the minimum temperature threshold can select the lowest body temperature of a normal human body, and the maximum temperature threshold can select the highest body temperature of a normal human body; for the width difference threshold, since the pyroelectric sensor has an acquisition accuracy error and there is also an error in outlining the temperature distribution contour, the interval width value has an error, therefore, it is only necessary to take the width difference threshold ⁇ the width error; for the interval time t, it can be specifically set according to the actual scene requirements. For example, in a home scene, the flow of people is small and the occupied intervals are relatively concentrated.
  • t can be set to within 30s, so that changes can be identified in time after human actions so as to respond; in a commercial scene, the flow of people is large and the occupied intervals are relatively large. t can be set to be greater than 30s so that slight changes will not cause the corresponding device to respond.
  • the human body position detection method based on the pyroelectric sensor may also include: if the difference Cn is equal to 0 and the width W1-n and the width W2-n are both greater than or equal to the minimum human body width, then the corresponding interval W2-n is judged to be a human interval.
  • this optional solution is for the scene where a person stands still in the field of view of thermal imaging.
  • the difference Cn between the width W1-n and the width W2-n must be 0.
  • the interval W2-n is directly determined to be an unmanned interval, it will inevitably be a misjudgment result. Therefore, it is also possible to further determine whether the width W1-n and the width W2-n are both greater than or equal to the minimum human body width. If so, the interval W2-n can be determined to be a manned interval, otherwise the interval W2-n is determined to be an unmanned interval.
  • the minimum human body width can specifically be the temperature interval width when the human body is sideways, which can be determined through sufficient experimental statistics.
  • This embodiment provides a human body position detection system based on a pyroelectric sensor, comprising:
  • the pyroelectric sensor is used to scan and collect temperature data of the detection area multiple times at an interval time t;
  • a data analysis module is connected to the pyroelectric sensor and is used to select the temperature data that is greater than or equal to the minimum temperature threshold and less than or equal to the maximum temperature threshold from the temperature data detected each time, and connect the selected temperature data to outline the temperature distribution profile to form n intervals, and calculate the width of each interval;
  • the data judgment module is connected to the data analysis module and is used to receive width data and calculate the difference in width between corresponding intervals of temperature data detected twice adjacently. If the difference is greater than or equal to a width difference threshold, the corresponding interval is judged to be a occupied interval.
  • this embodiment provides a human position detection device based on a pyroelectric sensor, comprising: a housing 2, a Fresnel lens 1 fixed to the top of the housing 2 by bonding, pressing, screws, etc., a pyroelectric sensor 3 fixed to the bottom of the housing 1 by bonding, tight fitting, pressing, etc., and a circuit board 4 fixedly connected to the housing 2; a positioning hole is provided on the circuit board 4, a positioning column used in conjunction with the positioning hole is provided on the housing 2, and the housing 2 is fixed to the circuit board 4 by screws 5; the circuit board 4 is provided with the positioning hole.
  • a data analysis module and a data judgment module in a human position detection system based on pyroelectric sensors comprising: a housing 2, a Fresnel lens 1 fixed to the top of the housing 2 by bonding, pressing, screws, etc., a pyroelectric sensor 3 fixed to the bottom of the housing 1 by bonding, tight fitting, pressing, etc., and a circuit board 4 fixedly connected to the housing 2
  • the human body position detection device in this embodiment is designed with three pyroelectric sensors. Through excellent position layout and optical path design, the three pyroelectric sensors respectively form three independent detection areas A, B, and C, as shown in FIG5 . The detection is more accurate, and the structure is simple, the cost is low, and the installation and maintenance are convenient. The structure is shown in FIG6 .
  • the design principle of the optical path inside the housing 2 is as follows:
  • the lens 1 includes three lenses corresponding to the three pyroelectric sensors; a detection boundary limiting plate is arranged between each lens and the corresponding pyroelectric sensor, with the left detection boundary of the first pyroelectric sensor 31 as boundary 1, the right detection boundary of the first pyroelectric sensor 31 as boundary 2, the left detection boundary of the second pyroelectric sensor 32 as boundary 3, the right detection boundary of the second pyroelectric sensor 32 as boundary 4, the left detection boundary of the third pyroelectric sensor 33 as boundary 5, and the right detection boundary of the third pyroelectric sensor 33 as boundary 6;
  • point 41 and point 48 constitute boundary 1
  • point 42 and point 47 constitute boundary 2
  • point 43 and point 410 constitute boundary 3
  • point 44 and point 49 constitute boundary 4
  • point 45 and point 412 constitute boundary 5
  • point 46 and point 411 constitute boundary 6
  • boundary 1 and boundary 2 constitute area A
  • boundary 3 and boundary 4 constitute area B
  • boundary 5 and boundary 6 constitute area C
  • boundary 2 is parallel to boundary 3
  • boundary 4 is parallel to boundary 5;
  • the first pyroelectric sensor 31 detects the thermal radiation signal in area A
  • the second pyroelectric sensor 32 detects the thermal radiation signal in area B
  • the third pyroelectric sensor 33 detects the thermal radiation signal in area C.
  • the three pyroelectric sensor arrays inside the human position detection device in this embodiment are reasonably arranged in position and inclination, as shown in Figure 8, the second pyroelectric sensor 32 is placed vertically, the first pyroelectric sensor 31 and the third pyroelectric sensor 33 are placed symmetrically and inclined at a certain angle ⁇ , ⁇ is 45° to 85°, so that the detection range is wider, can adapt to more complex and harsh environments, and has a wider application.
  • This embodiment provides a smart home device, including a controller, the human body position detection device based on the pyroelectric sensor, and an execution module;
  • the controller controls the connection between the human body position detection device based on the pyroelectric sensor and the execution module, and controls the execution module to perform corresponding actions when the human body position detection device based on the pyroelectric sensor detects the human body position.
  • the execution module is a lamp, an air conditioner or a fan.
  • the human position detection device in the vertical air conditioner detects the temperature data of the detection area and transmits the temperature data to the data analysis module;
  • the data analysis module analyzes the temperature data and passes the analyzed data to the data judgment module;
  • the data judgment module compares and calculates the data to determine whether each interval is an occupied interval, and transmits the collected single or multiple occupied interval information to the execution module;
  • the execution module issues instructions to the air conditioner based on the received information about occupied intervals, controls the air direction of the air conditioner, supplies air to the occupied intervals, and can also increase the air supply volume based on the width of the interval.

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Abstract

一种人体位置探测方法、系统、装置及智能家居设备，方法包括：采用热释电传感器扫描采集探测区域的温度数据；将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间；间隔时间t，再次扫描采集探测区域的温度数据，将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间；计算两次探测温度数据对应区间的宽度差值，若差值大于等于宽差阈值，则判断对应的区间为有人区间。本方案判断是否有人不仅仅只根据温度，还从目标物体是否移动进行限制，减少了非人体发热带来的误判。

Description

一种人体位置探测方法、系统、装置及智能家居设备
本申请要求于2022年10月26日提交中国专利局、申请号为202211320755.0、发明名称为“一种人体位置探测方法、系统、装置及智能家居设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于传感器领域，具体的说，涉及了一种人体位置探测方法、系统、装置及智能家居设备。
背景技术
随着科技应用的大众化以及大众生活水平的不断提高，人们对家电的智能化提出更高的要求，更加注重人机交互，而人体位置探测是智能家电常具备的功能，用于探测人体的具体位置，根据人体的位置，智能家电相应的功能展现出不同的状态，例如灯根据人的位置选择性打开或者关闭，空调或者风扇根据人体位置，向人体所在区域送风，或者避开人体所在区域送风。在立式空调上，人体位置探测装置一般由单个或者多个阵列的热释电传感器组成，单个传感器测量准确，但是测量范围很受限制，多个传感器阵列探测范围广，但是传感器之间存在探测区域交叉，无法准确探测人体位置，且仅仅依靠温度来判断人体位置，很容易误判，探测不准确。
发明内容
本发明的目的是针对现有技术的不足，提供一种人体位置探测方法、系统、装置及智能家居设备。
为了实现上述目的，本发明所采用的技术方案是：
本发明第一方面提供一种基于热释电传感器的人体位置探测方法，包括：
采用热释电传感器扫描采集探测区域的温度数据；将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温 度数据联通勾勒出温度分布轮廓，组成n个区间，分别是区间1-1，区间1-2，区间1-3，…，区间1-n；计算各个区间的宽度W1-1，W1-2，W1-3，…，W1-n；
间隔时间t，再次扫描采集探测区域的温度数据，将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，分别是区间2-1，区间2-2，区间2-3，…，区间2-n；计算各个区间的宽度W2-1，W2-2，W2-3，…，W2-n；
计算两次探测温度数据对应区间的宽度差值，其中，宽度W1-1和宽度W2-1的差值为C1，宽度W1-2和宽度W2-2的差值为C2，宽度W1-3和宽度W2-3的差值为C3，…，宽度W1-n和宽度W2-n的差值为Cn；
若差值Cn大于等于宽差阈值，则判断对应的区间W2-n为有人区间。
可选地，探测区域包括将探测空间划分而成的相互独立的三个区域A、B、C，区域A由边界1和边界2组成，区域B由边界3和边界4组成，区域C由边界5和边界6组成，其中，边界2平行边界3，边界4平行边界5；
区域A、B、C内分别设置用于感知A、B、C区域内的热辐射信号的热释电传感器。
可选地，当差值Cn小于宽差阈值时，所述基于热释电传感器的人体位置探测方法还包括：
若差值Cn等于0且宽度W1-n和宽度W2-n均大于等于最小人体宽度，则判断对应的区间W2-n为有人区间。
本发明第二方面提供一种基于热释电传感器的人体位置探测系统，包括
热释电传感器，用于以间隔时间t多次扫描采集探测区域的温度数据；
数据分析模块，与所述热释电传感器连接，用于将每次探测到的温度数据中的大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，计算各个区间的宽度；
数据判断模块，与所述数据分析模块连接，用于接收宽度数据，并计算相邻两次探测的温度数据的对应区间的宽度的差值，若差值大于等于宽差阈值，则判断对应的区间为有人区间。
可选地，探测区域包括将探测空间划分而成的相互独立的三个区域A、B、C，区域A由边界1和边界2组成，区域B由边界3和边界4组成，区域C由边界5和边界6组成，其中，边界2平行边界3，边界4平行边界5；
区域A、B、C内分别设置用于感知A、B、C区域内的热辐射信号的热释电传感器。
可选地，所述数据判断模块还用于当差值Cn小于宽差阈值时，若差值Cn等于0且宽度W1-n和宽度W2-n均大于等于最小人体宽度，则判断对应的区间W2-n为有人区间。
本发明第三方面提供一种基于热释电传感器的人体位置探测装置，包括：壳体，固定在所述壳体顶部的透镜，固定在所述壳体底部的热释电传感器，以及与所述壳体固定连接的电路板；
所述电路板上设置所述的基于热释电传感器的人体位置探测系统中的数据分析模块和数据判断模块；
三个热释电传感器排列设置，位于两端的第一热释电传感器和第三热释电传感器倾斜一定角度放置，位于中间的第二热释电传感器垂直放置，以形成扇形探测区域；
所述透镜包括对应三个热释电传感器设置的三片透镜；
每片透镜与对应的热释电传感器之间设置有探测边界限制围板，以第一热释电传感器的左探测边界作为边界1，第一热释电传感器的右探测边界作为边界2，第二热释电传感器的左探测边界作为边界3，第二热释电传感器的右探测边界作为边界4，第三热释电传感器的左探测边界作为边界5，第三热释电传感器的右探测边界作为边界6。
可选地，所述透镜为菲涅尔透镜。
可选地，第一热释电传感器和第三热释电传感器对称放置，且倾斜45°～85°角度放置。
可选的，所述电路板上设置有定位孔，所述壳体上设置有与所述定位孔配合使用的定位柱，所述壳体通过螺钉与所述电路板固定。
本发明第四方面提供一种智能家居设备，包括控制器、所述的基于热释电传感器的人体位置探测装置、以及执行模块；
所述控制器控制连接所述基于热释电传感器的人体位置探测装置和所述执行模块，当所述基于热释电传感器的人体位置探测装置探测到人体位置时，控制所述执行模块执行相应的动作。
可选地，所述执行模块为灯、空调或者风扇。
本发明相对现有技术具有突出的实质性特点和显著进步，具体的说：
1)本发明判断是否有人不仅仅只根据温度，还从目标物体是否移动进行限制，减少了非人体发热带来的误判，位置探测更加准确可靠；
2)本发明采用三个热释电传感器阵列探测，位置布局合理，探测范围广，能适应更复杂和苛刻的环境，应用更加广泛；
3)本发明装置的内部光路结构设计，形成三个相互独立的探测区域A、B、C，探测到的信号互不影响，探测更加准确；
4)本发明装置的前端增加菲涅尔透镜，增强信号；
5)本发明装置的整体结构简洁，体积小，安装和维护方便。
附图说明
图1为人体位置探测方法整体流程图。
图2为初次扫描温度轮廓分布图。
图3为隔时间t扫描温度轮廓分布图。
图4为人体位置探测装置外观图。
图5为探测区域分区示意图。
图6为人体位置探测装置装配示意图。
图7为内部光路设计示意图；
图8为一种热释电传感器布局示意图。
图中：1为透镜，2为外壳，3为热释电传感器，4为电路板，5为螺钉，31第一热释电传感器，32第二热释电传感器，33第三热释电传感器。
具体实施方式
下面通过具体实施方式，对本发明的技术方案做进一步的详细描述。
实施例1
如图1所示，本实施例提供一种基于热释电传感器的人体位置探测方法，包括：
采用热释电传感器扫描采集探测区域的温度数据；将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，如图2所示，分别是区间1-1，区间1-2，区间1-3，…，区间1-n；计算各个区间的宽度W1-1，W1-2，W1-3，…，W1-n；
间隔时间t，再次扫描采集探测区域的温度数据，将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，如图3所示，分别是区间2-1，区间2-2，区间2-3，…，区间2-n；计算各个区间的宽度W2-1，W2-2，W2-3，…，W2-n；
计算两次探测温度数据对应区间的宽度差值，其中，宽度W1-1和宽度W2-1的差值为C1，宽度W1-2和宽度W2-2的差值为C2，宽度W1-3和宽度W2-3的差值为C3，…，宽度W1-n和宽度W2-n的差值为Cn；
若差值Cn大于等于宽差阈值，则判断对应的区间W2-n为有人区间。
需要说明的是，本实施例中，最小温度阈值可以选择正常人体最低体温值，最大温度阈值可以选择正常人体最高体温值；对于宽差阈值，由于热释电传感器存在采集精度误差，且在勾勒温度分布轮廓时也存在误差，使得区间宽度值存在误差，因此，只需取值宽差阈值≥宽度误差即可；对于间隔时间t，可以根据实际场景要求具体设置，例如，在家用场景中，人流量较少，有人区间比较集中，t可以设置为30s以内，达到人动作后及时识别变动，以便做出响应；在商用场景中，人流量较多，有人区间比较大，t可以设置为大于30s，不至于细微变动使相应的设备响应。
此外，当差值Cn小于宽差阈值时，该基于热释电传感器的人体位置探测方法还可以包括：若差值Cn等于0且宽度W1-n和宽度W2-n均大于等于最小人体宽度，则判断对应的区间W2-n为有人区间。
具体地，本可选方案则是针对人站在热成像视野中保持不动的场景，当人体保持不动时，宽度W1-n和宽度W2-n之间的差值Cn必然为0，此时，若直接确定区间W2-n为无人区间必然为误判结果。因此，还可以进一步判断宽度W1-n和宽度W2-n是否均大于等于最小人体宽度，若是，则可以确定区间W2-n为有人区间，否则确定区间W2-n为无人区间。其中，最小人体宽度具体可以为人体侧身时的温度区间宽度，可以通过足够的试验统计确定。
实施例2
本实施例提供一种基于热释电传感器的人体位置探测系统，包括
热释电传感器，用于以间隔时间t多次扫描采集探测区域的温度数据；
数据分析模块，与所述热释电传感器连接，用于将每次探测到的温度数据中的大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，计算各个区间的宽度；
数据判断模块，与所述数据分析模块连接，用于接收宽度数据，并计算相邻两次探测的温度数据的对应区间的宽度的差值，若差值大于等于宽差阈值，则判断对应的区间为有人区间。
本实施例系统中各个模块的具体工作流程参见实施例1，在此不再赘述。
实施例3
如图4所示，本实施例提供一种基于热释电传感器的人体位置探测装置，包括：壳体2，通过粘结、扣压和螺钉等方式固定在所述壳体2顶部的菲涅尔透镜1，通过粘结、紧配和扣压等方式固定在所述壳体1底部的热释电传感器3，以及与所述壳体2固定连接的电路板4；所述电路板4上设置有定位孔，所述壳体2上设置有与所述定位孔配合使用的定位柱，所述壳体2通过螺钉5与所述电路板4固定；所述电路板4上设置所述的 基于热释电传感器的人体位置探测系统中的数据分析模块和数据判断模块。
本实施例中的人体位置探测装置设计三个热释电传感器，通过出色的位置布局和光路设计，三个热释电传感器分别形成三个独立的探测区域A、B、C，如图5所示，探测更加准确，且结构简单，成本低，安装和维护方便，结构如图6所示。
所述壳体2内部光路设计原理：
三个热释电传感器在壳体2内部排列设置，位于两端的第一热释电传感器31和第三热释电传感器33倾斜一定角度放置，位于中间的第二热释电传感器32垂直放置，以形成扇形探测区域；所述透镜1包括对应三个热释电传感器设置的三片透镜；每片透镜与对应的热释电传感器之间设置有探测边界限制围板，以第一热释电传感器31的左探测边界作为边界1，第一热释电传感器31的右探测边界作为边界2，第二热释电传感器32的左探测边界作为边界3，第二热释电传感器32的右探测边界作为边界4，第三热释电传感器33的左探测边界作为边界5，第三热释电传感器33的右探测边界作为边界6；
具体的，如图7所示，点41和点48构成边界1，点42和点47构成边界2，点43和点410构成边界3，点44和点49构成边界4，点45和点412构成边界5，点46和点411构成边界6，边界1和边界2构成A区，边界3和边界4构成B区，边界5和边界6构成C区，边界2平行边界3，边界4平行边界5；第一热释电传感器31探测A区域中的热辐射信号，第二热释电传感器32探测B区域中的热辐射信号，第三热释电传感器33探测C区域中的热辐射信号。
本实施例中的人体位置探测装置内部的三个热释电传感器阵列，合理布局位置和倾角，如图8所示，第二热释电传感器32垂直放置，第一热释电传感器31和第三热释电传感器33对称放置，且倾斜一定的角度α，α大小为45°～85°，使探测的范围更加广阔，能适应更复杂和苛刻的环境，应用更加广泛。
实施例4
本实施例提供一种智能家居设备，包括控制器、所述的基于热释电传感器的人体位置探测装置、以及执行模块；
所述控制器控制连接所述基于热释电传感器的人体位置探测装置和所述执行模块，当所述基于热释电传感器的人体位置探测装置探测到人体位置时，控制所述执行模块执行相应的动作。
具体的，所述执行模块为灯、空调或者风扇。
以立式空调为例：
1)立式空调中的人体位置探测装置探测区域的温度数据，并将温度数据传递给数据分析模块；
2)数据分析模块分析温度数据，并将分析后的数据传递给数据判断模块；
3)数据判断模块对数据对比计算，判断各区间是否为有人区间，并将收集到的单个或者多个有人区间信息传递给执行模块；
4)执行模块根据收到的有人区间信息，对空调发出指令动作，控制空调风向，向有人区间送风，还可以根据区间宽度加大送风量。
最后应当说明的是：以上实施例仅用以说明本发明的技术方案而非对其限制；尽管参照较佳实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本发明技术方案的精神，其均应涵盖在本发明请求保护的技术方案范围当中。

Claims (12)

  1. 一种基于热释电传感器的人体位置探测方法，其特征在于，包括：
    采用热释电传感器扫描采集探测区域的温度数据；将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，分别是区间1-1，区间1-2，区间1-3，…，区间1-n；计算各个区间的宽度W1-1，W1-2，W1-3，…，W1-n；
    间隔时间t，再次扫描采集探测区域的温度数据，将大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，分别是区间2-1，区间2-2，区间2-3，…，区间2-n；计算各个区间的宽度W2-1，W2-2，W2-3，…，W2-n；
    计算两次探测温度数据对应区间的宽度差值，其中，宽度W1-1和宽度W2-1的差值为C1，宽度W1-2和宽度W2-2的差值为C2，宽度W1-3和宽度W2-3的差值为C3，…，宽度W1-n和宽度W2-n的差值为Cn；
    若差值Cn大于等于宽差阈值，则判断对应的区间W2-n为有人区间。
  2. 根据权利要求1所述的基于热释电传感器的人体位置探测方法，其特征在于：探测区域包括将探测空间划分而成的相互独立的三个区域A、B、C，区域A由边界1和边界2组成，区域B由边界3和边界4组成，区域C由边界5和边界6组成，其中，边界2平行边界3，边界4平行边界5；
    区域A、B、C内分别设置用于感知A、B、C区域内的热辐射信号的热释电传感器。
  3. 根据权利要求1所述的基于热释电传感器的人体位置探测方法，其特征在于，当差值Cn小于宽差阈值时，所述方法还包括：
    若差值Cn等于0且宽度W1-n和宽度W2-n均大于等于最小人体宽度，则判断对应的区间W2-n为有人区间。
  4. 一种基于热释电传感器的人体位置探测系统，其特征在于，包括
    热释电传感器，用于以间隔时间t多次扫描采集探测区域的温度数据；
    数据分析模块，与所述热释电传感器连接，用于将每次探测到的温度数据中的大于等于最小温度阈值且小于等于最大温度阈值的温度数据挑选出来，并将挑选出来的温度数据联通勾勒出温度分布轮廓，组成n个区间，计算各个区间的宽度；
    数据判断模块，与所述数据分析模块连接，用于接收宽度数据，并计算相邻两次探测的温度数据的对应区间的宽度的差值，若差值大于等于宽差阈值，则判断对应的区间为有人区间。
  5. 根据权利要求4所述的基于热释电传感器的人体位置探测系统，其特征在于：探测区域包括将探测空间划分而成的相互独立的三个区域A、B、C，区域A由边界1和边界2组成，区域B由边界3和边界4组成，区域C由边界5和边界6组成，其中，边界2平行边界3，边界4平行边界5；
    区域A、B、C内分别设置用于感知A、B、C区域内的热辐射信号的热释电传感器。
  6. 根据权利要求4所述的基于热释电传感器的人体位置探测系统，其特征在于，所述数据判断模块还用于当差值Cn小于宽差阈值时，若差值Cn等于0且宽度W1-n和宽度W2-n均大于等于最小人体宽度，则判断对应的区间W2-n为有人区间。
  7. 一种基于热释电传感器的人体位置探测装置，其特征在于，包括：壳体，固定在所述壳体顶部的透镜，固定在所述壳体底部的热释电传感器，以及与所述壳体固定连接的电路板；
    所述电路板上设置权利要求4所述的基于热释电传感器的人体位置探测系统中的数据分析模块和数据判断模块；
    三个热释电传感器排列设置，位于两端的第一热释电传感器和第三热释电传感器倾斜一定角度放置，位于中间的第二热释电传感器垂直放置，以形成扇形探测区域；
    所述透镜包括对应三个热释电传感器设置的三片透镜；
    每片透镜与对应的热释电传感器之间设置有探测边界限制围板，以第一热释电传感器的左探测边界作为边界1，第一热释电传感器的右探测边 界作为边界2，第二热释电传感器的左探测边界作为边界3，第二热释电传感器的右探测边界作为边界4，第三热释电传感器的左探测边界作为边界5，第三热释电传感器的右探测边界作为边界6。
  8. 根据权利要求7所述的基于热释电传感器的人体位置探测装置，其特征在于：所述透镜为菲涅尔透镜。
  9. 根据权利要求7所述的基于热释电传感器的人体位置探测装置，其特征在于：第一热释电传感器和第三热释电传感器对称放置，且倾斜45°～85°角度放置。
  10. 根据权利要求7所述的基于热释电传感器的人体位置探测装置，其特征在于：所述电路板上设置有定位孔，所述壳体上设置有与所述定位孔配合使用的定位柱，所述壳体通过螺钉与所述电路板固定。
  11. 一种智能家居设备，其特征在于，包括控制器、权利要求7-10任一项所述的基于热释电传感器的人体位置探测装置、以及执行模块；
    所述控制器控制连接所述基于热释电传感器的人体位置探测装置和所述执行模块，当所述基于热释电传感器的人体位置探测装置探测到人体位置时，控制所述执行模块执行相应的动作。
  12. 根据权利要求11所述的智能家居设备，其特征在于，所述执行模块为灯、空调或者风扇。
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Publication number Priority date Publication date Assignee Title
CN202119542U (zh) * 2011-06-15 2012-01-18 郑州炜盛电子科技有限公司 一种热释电测温传感器
CN102589715A (zh) * 2012-02-29 2012-07-18 王正平 一种热释电红外探测装置及其探测方法
CN105674471A (zh) * 2014-11-18 2016-06-15 青岛海尔空调电子有限公司 一种空调用人体探测定位方法及空调
CN107340062A (zh) * 2016-05-03 2017-11-10 众智光电科技股份有限公司 温度感测装置以及空调系统
CN110469939A (zh) * 2019-07-10 2019-11-19 海信（山东）空调有限公司 电器及其人体位置检测方法和装置
CN115683349A (zh) * 2022-10-26 2023-02-03 郑州炜盛电子科技有限公司 一种人体位置探测方法、系统、装置及智能家居设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202119542U (zh) * 2011-06-15 2012-01-18 郑州炜盛电子科技有限公司 一种热释电测温传感器
CN102589715A (zh) * 2012-02-29 2012-07-18 王正平 一种热释电红外探测装置及其探测方法
CN105674471A (zh) * 2014-11-18 2016-06-15 青岛海尔空调电子有限公司 一种空调用人体探测定位方法及空调
CN107340062A (zh) * 2016-05-03 2017-11-10 众智光电科技股份有限公司 温度感测装置以及空调系统
CN110469939A (zh) * 2019-07-10 2019-11-19 海信（山东）空调有限公司 电器及其人体位置检测方法和装置
CN115683349A (zh) * 2022-10-26 2023-02-03 郑州炜盛电子科技有限公司 一种人体位置探测方法、系统、装置及智能家居设备

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