Signal radiation detection angle adjusting method and device and computer storage medium

Abstract

The invention discloses a signal radiation detection angle adjusting method and device and a computer storage medium, and the method comprises the steps: obtaining the time from the time when a human sensing module is triggered to the time when the device is operated for multiple times, and calculating an average time value; calculating a relative distance between the human body and the equipment when the human sensing module is triggered according to the average time value and a preset human body walking speed; if the relative distance is within the preset triggering distance range, the existing signal radiation detection angle is kept; and if the relative distance is out of the preset trigger distance range, controlling the human sensing module to adjust the signal radiation detection angle. According to the invention, the angle adjusting device, such as a phase shifter, is additionally arranged in the human sensing module, so that the detection area range of the human sensing module can be automatically adjusted through the angle adjusting device to adapt to the installation cooperation of different devices and the human sensing module.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration devices, and in particular to a method and device for adjusting a signal radiation detection angle, and a computer storage medium. Background Art

[0002] At present, the home appliance industry is gradually moving towards intelligence, and human body sensing as one of the results of intelligence has also attracted much attention. For example, the millimeter wave radar module is used to realize the human body sensing function. Generally, the radar module is mainly installed behind the refrigerator panel. Due to the different production processes of each type of refrigerator, the installation position of the radar module may be different, and the antenna detection angle of the radar module has a certain range, which leads to differences in the detection range. At present, in order to achieve the same detection range of human body sensing for different models of refrigerators, it is generally achieved by fixing the installation position of the radar module or using different module sensing sensitivities at different installation positions.

[0003] Due to the wide variety of refrigerator models and large differences in structural forms, if a fixed radar module installation position is used, it will greatly limit the refrigerator's production and installation process, which is time-consuming and labor-intensive. Different models use different radar module sensing sensitivities, which will lead to a wide variety of radar module models and difficult management. Summary of the invention

[0004] The purpose of the present invention is to provide a method, device and computer storage medium for adjusting the signal radiation detection angle, which is not limited to the model of the refrigerator and the model of the human sensing module, and can automatically adjust the detection area range of the human sensing module.

[0005] To achieve the above-mentioned object of the invention, an embodiment of the present invention provides a method for adjusting a signal radiation detection angle, the method comprising:

[0006] Obtain the time from when the human sensing module is triggered to when the device is operated multiple times, and calculate the average time value;

[0007] Calculate the relative distance between the human body and the device when the human sensing module is triggered according to the average time value and a preset human walking speed;

[0008] If the relative distance is within the preset trigger distance range, the existing signal radiation detection angle is maintained;

[0009] If the relative distance is outside the preset trigger distance range, the human sensing module is controlled to adjust the signal radiation detection angle.

[0010] As a further improvement of an embodiment of the present invention, the multiple acquisitions of the time from when the human sensing module is triggered to when the device is operated, and the calculation of the average time value, specifically include:

[0011] The timing starts from when the human sensing module is triggered;

[0012] If the device is operated within the preset time, the time from when the human sensing module is triggered to when the device is operated is stored;

[0013] If the device has not been operated within the preset time, the time from when the human sensor module is triggered to when the device is operated will be ignored.

[0014] The average time value is calculated according to the timing time from when the human sensing module is triggered to when the device is operated under the preset number of stored times.

[0015] As a further improvement of an embodiment of the present invention, the preset time is 3 seconds, and the preset number of times is 10-20 times.

[0016] As a further improvement of an embodiment of the present invention, if the relative distance is outside the preset trigger distance range, controlling the human sensing module to adjust the signal radiation detection angle specifically includes:

[0017] If the relative distance is less than the minimum value of the preset trigger distance range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the ground;

[0018] If the relative distance is greater than the maximum value of the preset trigger distance range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the top of the device box.

[0019] As a further improvement of an embodiment of the present invention, before acquiring the time from when the human sensing module is triggered to when the device is operated for multiple times and calculating the average time value, the method further includes:

[0020] Get the installation height of the human sensing module in the device;

[0021] If the installation height is within the preset height range, the existing signal radiation detection angle is maintained;

[0022] If the installation height is outside the preset height range, the human sensing module is controlled to adjust the signal radiation detection angle.

[0023] As a further improvement of an embodiment of the present invention, if the installation height is outside the preset height range, controlling the human sensing module to adjust the signal radiation detection angle specifically includes:

[0024] If the installation height is greater than the maximum value of the preset height range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the ground;

[0025] If the installation height is less than the minimum value of the preset height range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the top of the equipment box.

[0026] As a further improvement of an embodiment of the present invention, the calculation formula of the offset angle is:

[0027] L=Hcot(θ / 2+γ)

[0028] Wherein, L is a preset trigger distance of the human sensing module, H is an installation height of the human sensing module in the device, θ is a signal radiation angle of the human sensing module, and γ is the offset angle.

[0029] To achieve the above-mentioned purpose, an embodiment of the present invention provides a device having a method for adjusting a signal radiation detection angle, comprising: a human sensing module, a memory and a processor, wherein:

[0030] The human sensing module is arranged inside the door body of the device and radiates signals toward the space outside the door body;

[0031] An angle adjustment device is provided in the human sensing module, and the angle adjustment device is used to change the signal radiation detection angle of the human sensing module;

[0032] The memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps of the method for adjusting the signal radiation detection angle as described above are implemented.

[0033] As a further improvement of one embodiment of the present invention, the human sensing module includes a signal generating unit, at least two transmitting units, a receiving unit and a signal processing unit. The angle adjustment device is the same in number as the transmitting units, and each of the angle adjustment devices is arranged between the signal generating unit and each of the transmitting units. The signal processing unit is used to process the transmitting signal of the transmitting unit and the receiving signal of the receiving unit, and output an intermediate frequency signal.

[0034] To achieve the above-mentioned purpose of the invention, one embodiment of the present invention provides a computer storage medium, which stores a computer program, and is characterized in that when the computer program is run, the device where the computer storage medium is located causes the steps of the adjustment method according to the above-mentioned signal radiation detection angle.

[0035] The benefit of the present invention lies in that: by adding an angle adjustment device, such as a phase shifter, to the human sensing module, the detection area range of the human sensing module can be automatically adjusted through the angle adjustment device to adapt to the installation and coordination of different devices and the human sensing module. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a flow chart of a method for adjusting a signal radiation detection angle in one embodiment of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the signal radiation range when the human sensing module is installed on the door body of the equipment in one embodiment of the present invention;

[0038] Figure 3 is a flow chart of a method for adjusting a signal radiation detection angle in another embodiment of the present invention;

[0039] Figure 4 Schematic diagram of the structure of a human sensing module in one embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in combination with the specific implementation methods of this application and the corresponding drawings. Obviously, the described implementation methods are only part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] like Figure 1 As shown, a method for adjusting a signal radiation detection angle provided in this embodiment includes:

[0043] S1: Obtain the time from when the human sensing module is triggered to when the device is operated multiple times, and calculate the average time value.

[0044] S2: Calculate the relative distance between the human body and the device when the human sensing module is triggered based on the average time value and the preset human walking speed.

[0045] S31: If the relative distance is within the preset trigger distance range, the existing signal radiation detection angle is maintained.

[0046] S32: If the relative distance is outside the preset trigger distance range, the human sensing module is controlled to adjust the signal radiation detection angle.

[0047] The equipment in the present invention mainly refers to refrigeration equipment, such as refrigerators, beverage cabinets, freezers, etc. A human sensing module is installed on the door of the equipment to control the operation of other components on the equipment when a human body approaches. Due to the different equipment models and large structural differences, different types of human sensing modules need to be used or the installation position of the human sensing module needs to be changed corresponding to different models of equipment to achieve the same detection range of the human sensing module on different equipment. This method is difficult to process and has high cost. Therefore, the present invention provides a human sensing module that can adapt to different installation positions, adds an angle adjustment device, such as a phase shifter, to the existing human sensing module, and uses the antenna beamforming principle to achieve the adjustable detection range of the antenna in the human sensing module through the angle adjustment device, so that the human sensing module can adaptively change its detection range when it is installed at different positions on the equipment.

[0048] Generally, since the human sensing module installed in the device needs to be manually turned on or off by the user, before step S1 , the step also includes: turning on the human sensing module to put it in the running mode.

[0049] Specifically, the human sensing module uses a millimeter-wave radar module to realize the human sensing function. It is installed in the device door body and radiates signals toward the space outside the device door body. When a human body approaches the device door body, the human sensing module can detect and identify the approaching human body, that is, when a human body approaches the device door body, the human sensing module is triggered.

[0050] More specifically, when a human body approaches the device door, the user may be passing by the device or performing other operations around the device door without operating the device itself. For example, the user does not open the device door, or the user does not click on the display screen on the device door, etc.

[0051] Therefore, in step S1, the time from when the human sensing module is triggered to when the device is operated is obtained multiple times, and the average time value is calculated, specifically including:

[0052] The timing starts from when the human sensing module is triggered.

[0053] If the device is operated within the preset time, the time from when the human sensing module is triggered to when the device is operated is stored.

[0054] If the device has not been operated within the preset time, the timing time from when the human sensing module is triggered to when the device is operated will be ignored.

[0055] The average time value is calculated according to the timing time from when the human sensing module is triggered to when the device is operated under the preset number of stored times.

[0056] In one embodiment of the present invention, the preset time is 3 seconds.

[0057] In one embodiment of the present invention, the preset number of times is 10-20 times.

[0058] For example, the timing starts from when the human sensing module is triggered. If the device door is opened within 3 seconds (including 3 seconds), the timing time from when the human sensing module is triggered to when the device door is opened is stored; if the device has not been operated for more than 3 seconds, the timing time from when the human sensing module is triggered to when the device is operated is ignored. 15 timing time data are obtained from the stored timing time, and the average time value of the timing time from when the human sensing module is triggered to when the device is operated is calculated.

[0059] In one embodiment of the present invention, the walking speed of the human body can be preset in the system, and the relative distance between the human body and the device when the human sensing module is just triggered can be calculated based on the calculated average time value and the preset walking speed of the human body.

[0060] In another embodiment of the present invention, a human motion sensor can be set on the device or a motion sensor can be set in the human sensing module to obtain the walking speed of the human body when approaching. The average walking speed is calculated based on the walking speeds of the human body when approaching obtained multiple times. Combined with the calculated average time value, the relative distance between the human body and the device when the human sensing module is just triggered can be calculated.

[0061] Specifically, the trigger distance of the human sensing module is set to 1-1.5 meters, that is, when the relative distance between the human body and the device door body is within the range of 1-1.5 meters, the signal radiation detection angle range of the human sensing module is just right, and the human sensing module will be triggered.

[0062] In step S32, if the relative distance is outside the preset trigger distance range, the human sensing module is controlled to adjust the signal radiation detection angle, specifically including:

[0063] If the relative distance is less than the minimum value of the preset trigger distance range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the ground.

[0064] If the relative distance is greater than the maximum value of the preset trigger distance range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the top of the equipment box.

[0065] Specifically, if the calculated relative distance between the human body and the device door when the human sensing module is just triggered is less than the minimum value of the preset trigger distance range, that is, less than 1 meter, the angle adjustment device in the human sensing module is controlled to adjust the offset angle of the signal radiation range of the transmitting antenna toward the ground; if the calculated relative distance between the human body and the device door when the human sensing module is just triggered is greater than the maximum value of the preset trigger distance range, that is, greater than 1.5 meters, the angle adjustment device in the human sensing module is controlled to adjust the offset angle of the signal radiation range of the transmitting antenna toward the top of the equipment box.

[0066] Of course, the present invention does not limit the preset time, preset number of times and preset trigger distance range. The preset time and preset number of times can be adjusted according to actual conditions, and the trigger range of the preset human sensing module can be adjusted and changed according to the model and type of the human sensing module.

[0067] like Figure 2 As shown, the coverage of the radiation surface A1 and the radiation surface A2 (solid line) represents the signal radiation detection angle range of the human sensing module when no phase adjustment is performed, and the central plane A of the radiation range is parallel to the ground. The radiation surface A1' and the radiation surface A2' (dashed line) represent the signal radiation detection angle range after the phase angle adjustment, and the central plane of the radiation range after the phase angle adjustment is A'. The signal radiation angle of the human sensing module, the adjusted offset angle, the installation height of the human sensing module, and the trigger distance of the human sensing module satisfy the relationship:

[0068] L=Hcot(θ / 2+γ)

[0069] Wherein, L is a preset trigger distance of the human sensing module, H is an installation height of the human sensing module in the device, θ is a signal radiation angle of the human sensing module, and γ is the offset angle.

[0070] In the figure, when the human sensing module 200 is triggered, the closest distance of the human body to the device door 120 is L, the height of the human sensing module 200 from the ground is H, the radiation angle between the radiation surface A1 and the radiation surface A2 is θ, the radiation angle between the radiation surface A1' and the radiation surface A2' is θ, and the offset angle between the radiation surface A1 A2 and the radiation surface A1'A2' (that is, the offset angle between the center plane A and the center plane A') is γ.

[0071] For the same type of equipment, the type and position of the human sensing module installed therein are fixed, so the equipment main control board can directly obtain the installation height H of the human sensing module in the equipment door body and the signal radiation angle θ of the human sensing module. The trigger distance L of the human sensing module is set to 1-1.5 meters. According to the above relationship, the offset angle γ when the trigger distance L is met can be calculated.

[0072] According to a large number of experimental results, the angle adjustment device in a general human sensing module can adjust the maximum offset angle γ to 15°, which can meet the adjustment of the signal radiation detection range of most human sensing modules at different trigger distances.

[0073] Since the positions of the human sensing modules installed in devices of different models and structures cannot be guaranteed to be exactly the same, the system can perform an automatic adjustment first based on the installation position of the human sensing modules obtained.

[0074] Further, such as Figure 3 As shown, before step S1, it also includes:

[0075] Get the installation height of the human sensing module in the device.

[0076] If the installation height is within the preset height range, the existing signal radiation detection angle is maintained.

[0077] If the installation height is outside the preset height range, the human sensing module is controlled to adjust the signal radiation detection angle.

[0078] In one embodiment of the present invention, the preset height range is set to 0.8-1.5 meters.

[0079] Specifically, if the installation height is greater than the maximum value of the preset height range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the ground; if the installation height is less than the minimum value of the preset height range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the top of the equipment box.

[0080] That is to say, when the installation height of the human sensing module located at the device door is greater than the maximum value of the preset height range, that is, greater than 1.5 meters, the angle adjustment device in the human sensing module is controlled to adjust the offset angle of the signal radiation range of the transmitting antenna toward the ground; when the installation height of the human sensing module located at the device door is less than the minimum value of the preset height range, that is, less than 0.8 meters, the angle adjustment device in the human sensing module is controlled to adjust the offset angle of the signal radiation range of the transmitting antenna toward the top of the equipment box.

[0081] Similarly, the calculation formula for the offset angle is:

[0082] L=Hcot(θ / 2+γ)

[0083] Wherein, L is a preset trigger distance of the human sensing module, H is an installation height of the human sensing module in the device, θ is a signal radiation angle of the human sensing module, and γ is the offset angle.

[0084] For the same type of equipment, the type and position of the human sensing module installed therein are fixed, so the equipment main control board can directly obtain the installation height H of the human sensing module in the equipment door body and the signal radiation angle θ of the human sensing module. The trigger distance L of the human sensing module is set to 1-1.5 meters. According to the above relationship, the offset angle γ when the trigger distance L is met can be calculated.

[0085] After automatically adjusting the angle range once according to the installation height of the human sensing module, the angle range is adjusted again according to the acquired trigger distance of the human body in front of the device door. The detection area range of the human sensing module can be adjusted to the appropriate position more accurately and automatically according to different device signals and different users.

[0086] This embodiment provides a device having a method for adjusting a signal radiation detection angle, including a human sensing module, a memory, and a processor.

[0087] The equipment in the present invention is refrigeration equipment, including smart refrigerators, freezers, beverage cabinets, etc.

[0088] See also Figure 2 The device 100 includes a device box 110 and a device door 120 . A storage space is defined in the device box 110 . The device door 120 is connected to one side of the device box 110 through a hinge and is used to open and close the storage space of the device box 110 .

[0089] The human sensing module 200 is disposed in the device door 120 and radiates signals toward the space outside the device door 120 .

[0090] An angle adjustment device 210 is disposed in the human sensing module 200 , and the angle adjustment device 210 is used to change the signal radiation detection angle range of the human sensing module 200 .

[0091] The memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps of the method for adjusting the signal radiation detection angle described in any one of the above embodiments are implemented.

[0092] Specifically, the human sensing module 200 is a millimeter wave radar module, which uses antenna beamforming technology and is mostly used in a one-receive-two-transmit mode when applied to refrigerators.

[0093] like Figure 4 As shown, the human sensing module 200 includes a signal generating unit 220 , at least two transmitting units 230 , a receiving unit 240 and a signal processing unit 250 , and further includes a control unit 260 .

[0094] The number of the angle adjustment devices 210 is the same as the number of the transmitting units 230 , and each angle adjustment device 210 is disposed between the signal generating unit 220 and each transmitting unit 230 .

[0095] Exemplarily, the human sensing module 200 includes two transmitting units 230 and two angle adjustment devices 210 .

[0096] In one embodiment of the present invention, the angle adjustment device 210 is a phase shifter.

[0097] In one embodiment of the present invention, the transmitting unit 230 is a transmitting antenna, and the receiving unit 240 is a receiving antenna.

[0098] The signal processing unit 250 is electrically connected to the receiving unit 240 , and is used to process the transmission signal of the transmitting unit 230 and the reception signal of the receiving unit 240 , and output an intermediate frequency signal.

[0099] In one embodiment of the present invention, the signal processing unit 250 is a mixer.

[0100] The control unit 260 is electrically connected to the angle adjustment device 210 , the signal generating unit 220 , and the signal processing unit 250 , respectively.

[0101] The control unit 260 is used to drive the signal generating unit 220 to send out a signal, and the signal is transmitted to the transmitting unit 230 to be radiated out.

[0102] The control unit 260 is further configured to control the angle adjustment device 210 to adjust the offset angle of the transmitting unit 230 when receiving a request for phase angle adjustment of the signal radiation range.

[0103] The control unit 260 is further used to obtain the transmission signal of the transmission unit 230 and the reception signal of the reception unit 240, and control the signal processing unit 250 to process the transmission signal and the reception signal.

[0104] This embodiment further provides a computer storage medium, in which a computer program is stored. When the computer program is executed, the device where the computer storage medium is located executes the steps of the method for adjusting the signal radiation detection angle described in any of the above embodiments.

[0105] In summary, the present invention adds an angle adjustment device, such as a phase shifter, to the human sensing module, and can automatically adjust the detection area range of the human sensing module through the angle adjustment device to adapt to the installation and coordination of different devices and the human sensing module.

[0106] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0107] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for adjusting a signal radiation detection angle, characterized in that: The method comprises: Obtain the time from when the human sensing module is triggered to when the device is operated multiple times, and calculate the average time value; Calculate the relative distance between the human body and the device when the human sensing module is triggered according to the average time value and a preset human walking speed; If the relative distance is within the preset trigger distance range, the existing signal radiation detection angle is maintained; If the relative distance is outside the preset trigger distance range, the human sensing module is controlled to adjust the signal radiation detection angle.

2. The method for adjusting the signal radiation detection angle according to claim 1, characterized in that: The multiple acquisitions of the time from when the human sensing module is triggered to when the device is operated, and the calculation of the average time value, specifically include: The timing starts from when the human sensing module is triggered; If the device is operated within the preset time, the time from when the human sensing module is triggered to when the device is operated is stored; If the device has not been operated within the preset time, the time from when the human sensor module is triggered to when the device is operated will be ignored. The average time value is calculated according to the timing time from when the human sensing module is triggered to when the device is operated under the preset number of stored times.

3. The method for adjusting the signal radiation detection angle according to claim 2, characterized in that: The preset time is 3 seconds, and the preset number of times is 10-20 times.

4. The method for adjusting the signal radiation detection angle according to claim 1, characterized in that: If the relative distance is outside the preset trigger distance range, controlling the human sensing module to adjust the signal radiation detection angle specifically includes: If the relative distance is less than the minimum value of the preset trigger distance range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the ground; If the relative distance is greater than the maximum value of the preset trigger distance range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the top of the device box.

5. The method for adjusting the signal radiation detection angle according to claim 1, characterized in that: Before acquiring the time from when the human sensing module is triggered to when the device is operated for multiple times and calculating the average time value, the method further includes: Get the installation height of the human sensing module in the device; If the installation height is within the preset height range, the existing signal radiation detection angle is maintained; If the installation height is outside the preset height range, the human sensing module is controlled to adjust the signal radiation detection angle.

6. The method for adjusting the signal radiation detection angle according to claim 5, characterized in that: If the installation height is outside the preset height range, controlling the human sensing module to adjust the signal radiation detection angle specifically includes: If the installation height is greater than the maximum value of the preset height range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the ground; If the installation height is less than the minimum value of the preset height range, the human sensing module is controlled to adjust the offset angle of the signal radiation range toward the top of the equipment box.

7. The method for adjusting the signal radiation detection angle according to claim 4 or 6, characterized in that: The calculation formula of the offset angle is: L=Hcot(θ2+γ) Wherein, L is a preset trigger distance of the human sensing module, H is an installation height of the human sensing module in the device, θ is a signal radiation angle of the human sensing module, and γ is the offset angle.

8. A device having a method for adjusting a signal radiation detection angle, comprising: The human sensing module, memory and processor are characterized in that: The human sensing module is arranged inside the door body of the device and radiates signals toward the space outside the door body; An angle adjustment device is provided in the human sensing module, and the angle adjustment device is used to change the signal radiation detection angle of the human sensing module; The memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps of the method for adjusting the signal radiation detection angle according to any one of claims 1 to 7 are implemented.

9. The device having a method for adjusting a signal radiation detection angle according to claim 8, characterized in that: The human sensing module includes a signal generating unit, at least two transmitting units, a receiving unit and a signal processing unit. The number of the angle adjustment devices is the same as the number of the transmitting units, and each of the angle adjustment devices is arranged between the signal generating unit and each of the transmitting units. The signal processing unit is used to process the transmitting signal of the transmitting unit and the receiving signal of the receiving unit, and output an intermediate frequency signal.

10. A computer storage medium storing a computer program, characterized in that: When the computer program is executed, the device where the computer storage medium is located causes the device to execute the steps of the method for adjusting the signal radiation detection angle according to any one of claims 1 to 7.

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