WO2023202036A1 - Human body feature detection control method and system, and storage medium - Google Patents

Abstract

A human body feature detection control method and system, and a storage medium. The method comprises: if a target person enters a monitoring area of a radar sensor, acquiring the minimum height of the target person from the radar sensor (S201); and determining a first height of the target person according to the minimum height of the target person from the radar sensor, a height difference, and the mounting height of a detection device that is collected by means of a distance sensor (S202). By using the technical solution, automatic acquisition of the mounting height of the detection device is achieved, manual setting of the mounting height of the detection device is avoided, the acquisition process of the mounting height of the detection device is simplified, and the mounting height of a household appliance does not need to be limited, so that the height of a detected person can be simply and reliably acquired, and the type of the detected person is further acquired.

Description

Detection and control method, system and storage medium of human body characteristics Technical field

The invention relates to the field of smart home technology, and specifically provides a detection and control method, system and storage medium for human body characteristics.

Background technique

When using radar sensors to detect human types (children, adults), it is usually necessary to detect human body characteristics such as the height of the person as an auxiliary calculation quantity. When applied to home appliances, the method of fixing the radar installation height is usually used to assist in calculating the height of the person being detected. height to determine whether the person being detected is an adult or a child. This method is common for equipment with a fixed installation height such as air conditioners and cabinets. However, the installation height of home appliances such as hangers or air duct machines will vary depending on the room structure. For different home appliances that have different installation heights, it is usually necessary to manually set the installation height of the home appliances, or to limit the installation height of the home appliances in order to obtain the height of the person being detected.

However, the process of manually setting the installation height of home appliances is cumbersome. Limiting the installation height of home appliances will limit the range of use, and relaxing the range of installation heights will affect the detection accuracy of auxiliary height calculations.

Therefore, how to obtain the height of the person being detected simply and reliably is an urgent technical problem that needs to be solved by those skilled in the art.

Contents of the invention

In order to overcome the above shortcomings, the present invention is proposed to provide a human body feature detection and control method, system and storage medium that solves or at least partially solves the technical problems of complex and low accuracy in obtaining the height of the person being detected by some home appliances.

In a first aspect, the present invention provides a method for detecting human body characteristics. A detection device for detecting human body characteristics is provided with a radar sensor and a distance sensor; the distance between the radar sensor and the distance sensor has a set height. Poor; the methods include:

If the target person enters the monitoring area of the radar sensor, obtain the minimum height of the target person from the radar sensor;

The first height of the target person is determined based on the minimum height of the target person from the radar sensor, the height difference, and the installation height of the detection device collected by the distance sensor.

Further, the above-mentioned detection method of human body characteristics also includes:

If it is detected that the target person is located in the monitoring area of the distance sensor on the ground, obtain the minimum height between the target person and the distance sensor;

The second height of the target person is determined based on the installation height of the detection device and the minimum height between the target person and the distance sensor.

Further, the above-mentioned detection method of human body characteristics also includes:

determining an error between the first height of the target person and the second height of the target person;

If the error exceeds the preset range, the radar parameters of the radar sensor are adjusted.

Further, the above-mentioned detection method of human body characteristics adjusts the radar parameters of the radar sensor, including:

Obtain the minimum original detection height from a plurality of original detection heights obtained by the radar sensor when detecting the target person;

The distance detection coefficient in the radar parameters is adjusted according to the minimum height of the target person from the distance sensor and the minimum original detection height.

Further, the above-mentioned human body feature detection method adjusts the distance detection coefficient in the radar parameters according to the minimum height of the target person from the distance sensor and the minimum original detection height, including:

Calculate the ratio of the minimum height of the target person from the distance sensor and the minimum original detection height;

Adjust the distance detection coefficient in the radar parameters to the ratio.

Further, the above-mentioned method for detecting human body characteristics determines the first height of the target person based on the minimum height of the target person from the radar sensor, the height difference and the installation height of the detection equipment, include:

The minimum height of the target person from the radar sensor, the height difference and the installation height of the detection equipment are substituted into the preset height detection calculation formula to calculate, and the first height of the target person is obtained;

The preset height detection calculation formula is:

h ₁ =d _1max +Ad _2min

Wherein, the h ₁ represents the first height of the target person, the d _1max represents the installation height of the detection equipment, the A represents the height difference, and the d _2min represents the distance between the target person and the Minimum height of radar sensor.

Further, according to the above-mentioned detection method of human body characteristics, the collection process of the installation height of the detection equipment includes:

For at least one target object located in the monitoring area of the distance sensor on the ground, the height between the at least one target object and the distance sensor is collected by the distance sensor as a candidate height;

Select a maximum candidate height from at least one candidate height as the installation height of the detection device.

In a second aspect, the present invention provides a human body feature detection system, including a processor and a storage device. The storage device is adapted to store a plurality of program codes. The program codes are adapted to be loaded and run by the processor. Perform any one of the human body feature detection methods described above.

Furthermore, in the above-mentioned human body characteristic detection system, the detection equipment includes a duct-type air conditioner and/or a wall-mounted air conditioner.

In a third aspect, a computer-readable storage medium is provided, which stores a plurality of program codes, and the program codes are suitable for being loaded and run by a processor to execute any one of the above technical solutions. Detection methods of human body characteristics.

One or more of the above technical solutions of the present invention have at least one or more of the following beneficial effects:

In the technical solution for implementing the present invention, by arranging a distance sensor on the detection equipment, the distance sensor can be used to automatically obtain the installation height of the detection equipment, avoiding the need to manually set the installation height of the detection equipment, and simplifying the acquisition of the installation height of the detection equipment. process, and there is no need to limit the installation height of home appliances. It only needs to use the minimum height of the target person from the radar sensor, the height difference and the detection collected by the distance sensor when the target person enters the monitoring area of the radar sensor. The first height of the target person can be accurately calculated based on the installation height of the device. By adopting the technical solution of the present invention, the height of the person being detected can be obtained simply and reliably, and then the type of the person being detected can be obtained.

Description of the drawings

The disclosure of the present invention will become more understandable with reference to the accompanying drawings. Those skilled in the art can easily understand that these drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. Additionally, like numbers in the figures identify similar parts, where:

Figure 1 is a schematic structural diagram of a detection device 1 for detecting human body characteristics according to an embodiment of the present invention;

Figure 2 is a schematic flowchart of the main steps of a human body feature detection method according to an embodiment of the present invention;

Figure 3 is a schematic flowchart of the main steps of a human body feature detection method according to another embodiment of the present invention;

Figure 4 is a main structural block diagram of a human body feature detection device according to an embodiment of the present invention.

Detailed ways

Some embodiments of the invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, "module" and "processor" may include hardware, software, or a combination of both. A module can include hardware circuits, various suitable sensors, communication ports, and memory. It can also include software parts, such as program code, or it can be a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and/or signal processing functions. The processor can be implemented in software, hardware, or a combination of both. Non-transitory computer-readable storage media include any suitable media that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and/or B" means all possible combinations of A and B, such as just A, just B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and/or B" and may include just A, just B or A and B. The singular forms "a" and "the" may also include the plural form.

Referring to Figure 1, Figure 1 is a schematic structural diagram of a detection device 1 for detecting human body characteristics according to an embodiment of the present invention. As shown in Figure 1, the detection device 1 can include a duct-type air conditioner or a wall-mounted air conditioner. At least one of ceiling-mounted central air conditioners can also be other wall-mounted equipment, and no examples are given here.

In a specific implementation process, the radar sensor 2 and the distance sensor 3 can be respectively installed on the detection device 1 according to the set height difference. Among them, the radar sensor 2 is used to collect the distance between moving persons within its monitoring range and the radar sensor 2, and the distance sensor 3 is used to collect at least one target object and at least one target object located in the monitoring area of the distance sensor 3 on the ground. The height between the distance sensors 3 is used as a candidate height, so that the controller in the detection device 1 can select the maximum candidate height from at least one candidate height as the installation height of the detection device 1 . The installation height of the detection equipment 1 is d _1max in Figure 1.

Figure 2 is a schematic flowchart of the main steps of a human body feature detection method according to an embodiment of the present invention. As shown in Figure 2, the human body feature detection method in the embodiment of the present invention mainly includes the following steps 201 to 202.

Step 201: If the target person enters the monitoring area of the radar sensor, obtain the minimum height of the target person from the radar sensor;

In a specific implementation process, the radar sensor can be used to detect whether there is a target person entering the monitoring area. If the target person enters the monitoring area of the radar sensor, the minimum height of the target person from the radar sensor can be obtained through the radar sensor. . Wherein, the radar sensor may be a millimeter radar sensor.

Specifically, since the target person may detect the height of different parts of the human body from the radar sensor while moving, and the required height is the height of the person's head from the radar sensor, which is the minimum, therefore, it is necessary to obtain the target person. Minimum height from the radar sensor. The minimum height of the target person from the radar sensor is d _2min in Figure 1.

Step 202: Determine the first height of the target person based on the minimum height of the target person from the radar sensor, the height difference, and the installation height of the detection device collected by the distance sensor.

In a specific implementation process, the minimum height of the target person from the radar sensor, the height difference and the installation height of the detection equipment can be substituted into a preset height detection calculation formula for calculation to obtain the target The first height of the person so that the type of the target person, such as an adult or a child, can be determined based on the first height of the target person.

The preset height detection calculation formula (1) is:

h ₁ ＝d _1max +Ad _2min (1)

Wherein, the h ₁ represents the first height of the target person, the d _1max represents the installation height of the detection equipment, the A represents the height difference, and the d _2min represents the distance between the target person and the Minimum height of radar sensor.

The human body feature detection method of this embodiment can use the distance sensor to automatically obtain the installation height of the detection equipment by arranging a distance sensor on the detection equipment, avoiding the need to manually set the installation height of the detection equipment, and simplifying the installation height of the detection equipment. The acquisition process does not need to limit the installation height of home appliances. It only needs to use the minimum height of the target person from the radar sensor, the height difference and the distance collected by the distance sensor when the target person enters the monitoring area of the radar sensor. By detecting the installation height of the equipment, the first height of the target person can be accurately calculated. By adopting the technical solution of the present invention, the height of the person being detected can be obtained simply and reliably, and further the type of the person being detected can be obtained.

Figure 3 is a schematic flowchart of the main steps of a human body feature detection method according to another embodiment of the present invention. As shown in Figure 3, the human body feature detection method in the embodiment of the present invention mainly includes the following steps 301 to 306.

Step 301: If the target person enters the monitoring area of the radar sensor, obtain the minimum height of the target person from the radar sensor;

For the implementation process of this step, reference can be made to step 201 of the above embodiment, which will not be described again here.

Step 302: Determine the first height of the target person based on the minimum height of the target person from the radar sensor, the height difference, and the installation height of the detection device collected by the distance sensor;

For the implementation process of this step, reference can be made to step 202 of the above embodiment, which will not be described again here.

Step 303: If it is detected that the target person is located in the monitoring area of the distance sensor on the ground, obtain the minimum height between the target person and the distance sensor;

In a specific implementation process, the target person may continue to move to the monitoring area where the distance sensor is on the ground. At this time, the distance sensor can detect the height between the target person and the target person. Different postures may exist within the monitoring area, so that multiple heights between the distance sensor and the target person can be detected. When the height between the target person and the distance sensor is minimum, the accurate height of the target person can be reflected. Therefore, the minimum height between the target person and the distance sensor can be obtained. The minimum height between the target person and the distance sensor is d _1min in Figure 1 .

Step 304: Determine the second height of the target person based on the installation height of the detection device and the minimum height between the target person and the distance sensor;

In a specific implementation process, the installation height of the detection device and the minimum height between the target person and the distance sensor can be substituted into the following height calculation formula to obtain the second height of the target person.

Among them, the height calculation formula (2) is:

h ₂ =d _1max -d _1min (2)

Among them, h ₂ represents the second height of the target person, and d _1min represents the minimum height between the target person and the distance sensor.

Step 305: Determine the error between the first height of the target person and the second height of the target person;

In a specific implementation process, the first height of the target person and the second height of the target person can be compared to obtain the difference between the first height of the target person and the second height of the target person. error.

Step 306: If the error exceeds the preset range, adjust the radar parameters of the radar sensor.

Specifically, it can be determined according to the following calculation formula (3) whether the error between the first height of the target person and the second height of the target person exceeds the preset range.

Among them, N represents the value corresponding to the preset range.

In a specific implementation process, if the error exceeds the preset range, the ratio of the minimum height of the target person from the distance sensor to the minimum original detection height can be calculated according to the following adjustment calculation formula of the distance detection coefficient; Adjust the distance detection coefficient in the radar parameters to the ratio.

Specifically, the output value of the radar sensor can be obtained by the following calculation formula (4):

d ₂ =D ₂ *α (4)

Among them, d ₂ represents the output value of the radar sensor, D ₂ represents the original detection height of the radar sensor, and α represents the distance detection coefficient.

Specifically, the distance detection coefficient can be calculated according to the following calculation formula (5):

α＝d _1min /D _2min (5)

Among them, D _2min represents the minimum original detection height among the original detection heights of the radar sensor.

The human body feature detection method in this embodiment detects the first height of the target person within the monitoring range of the radar sensor, and compares the two heights after the target person is at the second height of the distance sensor in the ground monitoring area. If the error between the two heights exceeds the preset range, the radar coefficient of the radar sensor is automatically corrected, ensuring that the height of the target person can be accurately detected.

It should be pointed out that although the various steps are described in a specific order in the above embodiments, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in other sequences, and these changes are within the scope of the present invention.

Furthermore, the present invention also provides a device for detecting human body characteristics.

Referring to FIG. 4, FIG. 4 is a main structural block diagram of a human body feature detection device according to an embodiment of the present invention. As shown in FIG. 4 , the human body feature detection device according to the embodiment of the present invention may include an acquisition module 40 and a detection module 41 .

The acquisition module 40 is used to obtain the minimum height of the target person from the radar sensor if the target person enters the monitoring area of the radar sensor;

The detection module 41 is configured to determine the first height of the target person based on the minimum height of the target person from the radar sensor, the height difference, and the installation height of the detection device.

In a specific implementation process, the minimum height of the target person from the radar sensor, the height difference and the installation height of the detection equipment can be substituted into a preset height detection calculation formula for calculation to obtain the target The first height of personnel;

The preset height detection calculation formula can be referred to the calculation formula (1), which will not be described again here.

The human body feature detection device of this embodiment can use the distance sensor to automatically obtain the installation height of the detection equipment by arranging a distance sensor on the detection equipment, avoiding the need to manually set the installation height of the detection equipment, and simplifying the installation height of the detection equipment. The acquisition process does not need to limit the installation height of home appliances. It only needs to use the minimum height of the target person from the radar sensor, the height difference and the distance collected by the distance sensor when the target person enters the monitoring area of the radar sensor. By detecting the installation height of the equipment, the first height of the target person can be accurately calculated. By adopting the technical solution of the present invention, the height of the person being detected can be obtained simply and reliably, and further the type of the person being detected can be obtained.

In a specific implementation process, the acquisition module 40 is also used to acquire the minimum height between the target person and the distance sensor if it is detected that the target person is located in the monitoring area of the distance sensor on the ground;

The detection module 41 is also used to determine the second height of the target person based on the installation height of the detection device and the minimum height between the target person and the distance sensor.

In a specific implementation process, the detection module 41 is also used to determine the error between the first height of the target person and the second height of the target person; if the error exceeds the preset range, the radar The radar parameters of the sensor are adjusted.

Specifically, the minimum original detection height can be obtained from a plurality of original detection heights obtained by the radar sensor when detecting the target person; according to the minimum height of the distance sensor from the target person and the minimum The original detection height is used to adjust the distance detection coefficient in the radar parameters.

Specifically, the ratio of the minimum height of the target person from the distance sensor to the minimum original detection height can be calculated; and the distance detection coefficient in the radar parameters is adjusted to the ratio.

In a specific implementation process, the acquisition module 40 is also used to collect, through the distance sensor, the height between at least one target object and the distance sensor for at least one target object located in the monitoring area of the distance sensor on the ground as Candidate height: select the maximum candidate height from at least one candidate height as the installation height of the detection device.

The above-mentioned human body feature detection device is used to implement the human body feature detection method embodiment of the above embodiment. The technical principles, technical problems solved and technical effects produced by the two are similar. Those skilled in the art can clearly understand that , For the convenience and simplicity of description, the specific working process and related instructions of the human body feature detection device can be referred to the content described in the embodiment of the human body feature detection method, and will not be described again here.

Those skilled in the art can understand that the present invention can implement all or part of the process in the method of the above-mentioned embodiment, and can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable file. In the storage medium, when the computer program is executed by the processor, the steps of each of the above method embodiments can be implemented. Wherein, the computer program includes computer program code, which may be in the form of source code, object code, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, media, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunications signals, and software distribution media, etc. It should be noted that the content contained in the computer-readable storage medium can be appropriately added or deleted according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media Storage media does not include electrical carrier signals and telecommunications signals.

Furthermore, the present invention also provides a human body feature detection system. In an embodiment of a human body feature detection system according to the present invention, the human body feature detection system includes a processor and a storage device. The storage device can be configured to store a program for executing the human body feature detection method of the above method embodiment. The processor It may be configured to execute a program in the storage device, which program includes but is not limited to a program that executes the human body feature detection method of the above method embodiment. For ease of explanation, only the parts related to the embodiments of the present invention are shown. If specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The human body feature detection system may be a human body feature detection device including various electronic devices.

Furthermore, the present invention also provides a computer-readable storage medium. In one embodiment of a computer-readable storage medium according to the present invention, the computer-readable storage medium may be configured to store a program for executing the human body feature detection method of the above method embodiment, and the program may be loaded and run by a processor to implement The detection method of the above human body characteristics. For ease of explanation, only the parts related to the embodiments of the present invention are shown. If specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The computer-readable storage medium may be a storage device formed by various electronic devices. Optionally, in the embodiment of the present invention, the computer-readable storage medium is a non-transitory computer-readable storage medium.

Further, it should be understood that since the settings of each module are only to illustrate the functional units of the device of the present invention, the physical devices corresponding to these modules may be the processor itself, or a part of the software in the processor, a part of the hardware, or Part of the combination of software and hardware. Therefore, the number of individual modules in the figure is only illustrative.

Those skilled in the art can understand that various modules in the device can be split or combined adaptively. Such splitting or merging of specific modules will not cause the technical solutions to deviate from the principles of the present invention. Therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A method for detecting human body features, characterized in that a radar sensor and a distance sensor are provided on a detection device for detecting human body features; there is a set height difference between the radar sensor and the distance sensor; Methods include:

   If the target person enters the monitoring area of the radar sensor, obtain the minimum height of the target person from the radar sensor;

   The first height of the target person is determined based on the minimum height of the target person from the radar sensor, the height difference, and the installation height of the detection device collected by the distance sensor.
2. The method for detecting human body characteristics according to claim 1, further comprising:

   If it is detected that the target person is located in the monitoring area of the distance sensor on the ground, obtain the minimum height between the target person and the distance sensor;

   The second height of the target person is determined based on the installation height of the detection device and the minimum height between the target person and the distance sensor.
3. The method for detecting human body characteristics according to claim 2, further comprising:

   determining an error between the first height of the target person and the second height of the target person;

   If the error exceeds the preset range, the radar parameters of the radar sensor are adjusted.
4. The method for detecting human body characteristics according to claim 3, characterized in that adjusting the radar parameters of the radar sensor includes:

   Obtain the minimum original detection height from a plurality of original detection heights obtained by the radar sensor when detecting the target person;

   The distance detection coefficient in the radar parameters is adjusted according to the minimum height of the target person from the distance sensor and the minimum original detection height.
5. The method for detecting human body characteristics according to claim 4, wherein the distance detection coefficient in the radar parameters is adjusted according to the minimum height of the target person from the distance sensor and the minimum original detection height. ,include:

   Calculate the ratio of the minimum height of the target person from the distance sensor and the minimum original detection height;

   Adjust the distance detection coefficient in the radar parameters to the ratio.
6. The method for detecting human body characteristics according to claim 1, characterized in that the target person's height is determined based on the minimum height of the target person from the radar sensor, the height difference and the installation height of the detection equipment. The first height includes:

   The minimum height of the target person from the radar sensor, the height difference and the installation height of the detection equipment are substituted into the preset height detection calculation formula to calculate, and the first height of the target person is obtained;

   The preset height detection calculation formula is:

   h ₁ =d _1max +Ad _2min

   Wherein, the h ₁ represents the first height of the target person, the d _1max represents the installation height of the detection equipment, the A represents the height difference, and the d _2min represents the distance between the target person and the Minimum height of radar sensor.
7. The method for detecting human body characteristics according to claim 1, characterized in that the collection process of the installation height of the detection equipment includes:

   For at least one target object located in the monitoring area of the distance sensor on the ground, the height between the at least one target object and the distance sensor is collected by the distance sensor as a candidate height;

   Select a maximum candidate height from at least one candidate height as the installation height of the detection device.
8. A human body feature detection system, including a processor and a storage device, the storage device is adapted to store a plurality of program codes, characterized in that the program code is adapted to be loaded and run by the processor to execute claim 1 The detection method of human body characteristics described in any one of to 7.
9. The human body characteristic detection system according to claim 8, characterized in that the detection equipment includes at least one of a duct-type air conditioner, a wall-mounted air conditioner and a ceiling-mounted central air conditioner.
10. A computer-readable storage medium in which a plurality of program codes are stored, characterized in that the program codes are adapted to be loaded and run by a processor to perform the detection of human body characteristics described in any one of claims 1 to 7 method.

Images