CN109239713A - A kind of sitting posture detection device, desk lamp and sitting posture detecting method - Google Patents
A kind of sitting posture detection device, desk lamp and sitting posture detecting method Download PDFInfo
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- CN109239713A CN109239713A CN201810966754.0A CN201810966754A CN109239713A CN 109239713 A CN109239713 A CN 109239713A CN 201810966754 A CN201810966754 A CN 201810966754A CN 109239713 A CN109239713 A CN 109239713A
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- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 142
- 238000012545 processing Methods 0.000 claims abstract description 34
- 230000004888 barrier function Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000002604 ultrasonography Methods 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
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- 238000004891 communication Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
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- 238000004590 computer program Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 206010036436 Posture abnormal Diseases 0.000 description 1
- 241000190070 Sarracenia purpurea Species 0.000 description 1
- 206010047571 Visual impairment Diseases 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
Abstract
This application provides a kind of sitting posture detection device, desk lamp and methods, wherein sitting posture detection device includes: processing unit and the first ultrasonic sensor and the second ultrasonic sensor that connect with processing unit；Inclined angle installation, the location of first ultrasonic sensor are higher than the location of second ultrasonic sensor between horizontal plane respectively for first ultrasonic sensor and the second ultrasonic sensor.Processing unit controls the first ultrasonic sensor or the second ultrasonic sensor sends ultrasonic signal, and control the echo-signal that the first ultrasonic sensor and/or the second ultrasonic sensor received ultrasonic signal are reflected back through barrier, and then the transmission speed for the transmission duration and ultrasonic signal being spaced between the time of reception based on the sending instant by ultrasonic signal to receives echo-signal, the transmission range of ultrasonic signal is calculated, and detects the sitting posture state of human body based on transmission range.Thus the accuracy detected to human body sitting posture can be improved.
Description
Technical field
This application involves detection technique fields, examine in particular to a kind of sitting posture detection device, desk lamp and sitting posture
Survey method.
Background technique
When people read before table, learn, if keeping incorrect sitting posture for a long time, may result in visual impairment,
The problems such as bow-backed, needs when incorrect sitting posture occur in people in time for the purpose of reaching protection eyesight and avoiding hunchback
It is prompted, enables one to correcting sitting postures.
Currently, in order to identify incorrect sitting posture, one sitting posture inspection of the upper installation of desk lamp that can be placed in desktop and other items
Device is surveyed, a ultrasonic sensor and processor are configured in the sitting posture detection device, specifically, processor can be controlled
Ultrasonic sensor processed, which sends ultrasonic signal and receives, blocks the echo-signal that back reflection is returned by human body, and then determines and sit
The distance between appearance detection device and human body, to analyze the sitting posture state of human body.
However, when practical application, since the ultrasonic signal that ultrasonic sensor is sent is the diffusingsurface with conoid
It is sent out, if there are other shelters in addition to human body, such as the cup placed on desktop in the diffusingsurface, then
Also it can be reflected back echo-signal, this will bring interference to monitoring the distance between sitting posture detection device and human body, cause to analyze
There is mistake when the sitting posture state of human body.
Summary of the invention
In view of this, the application's is designed to provide a kind of sitting posture detection device, desk lamp and sitting posture detecting method, with to the greatest extent
Amount excludes other shelters and interferes for detecting the sitting posture state bring of human body, thus what raising detected human body sitting posture
Accuracy.
In a first aspect, the embodiment of the present application provides a kind of sitting posture detection device, comprising: processing unit and with it is described
The first ultrasonic sensor and the second ultrasonic sensor that processing unit is separately connected；Wherein, first supersonic sensing
Inclined angle is installed between horizontal plane respectively for device and second ultrasonic sensor, the first ultrasonic sensor institute
The position at place is higher than the location of described second ultrasonic sensor；
The processing unit sends and surpasses for controlling first ultrasonic sensor or second ultrasonic sensor
Acoustic signals, and control first ultrasonic sensor and/or second ultrasonic sensor reception ultrasonic wave letter
Number echo-signal being reflected back through barrier；Based on sending instant by ultrasonic signal to receiving the echo-signal being reflected back
The transmission speed of the transmission duration and ultrasonic signal that are spaced between the time of reception calculates the transmission range of ultrasonic signal；
Based on calculated transmission range, the sitting posture state of human body is detected.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, wherein when
Difference in height between the location of described first ultrasonic sensor and second ultrasonic sensor location is small
When preset height threshold value, the processing unit is specifically used for:
It controls first ultrasonic sensor and sends ultrasonic signal, and control first ultrasonic sensor and receive
The echo-signal that the ultrasonic signal is reflected back through barrier；
It determines that first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determines and described the first surpass
Sonic sensor receives the time of reception of echo-signal every time；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, calculate
First ultrasonic sensor is issued every time when ultrasonic signal to first ultrasonic sensor receives echo-signal
First transmission range；
Based on calculated multiple first transmission ranges, the sitting posture state of human body is detected.
With reference to first aspect, the embodiment of the present application provides second of possible embodiment of first aspect, wherein when
Difference in height between the location of described first ultrasonic sensor and second ultrasonic sensor location is not
When less than preset height threshold value, the processing unit is specifically used for:
It controls first ultrasonic sensor and sends ultrasonic signal, and control second ultrasonic sensor and receive
The echo-signal that the ultrasonic signal is reflected back through barrier；
It determines that first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determines and described the second surpass
Sonic sensor receives the time of reception of echo-signal every time；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, calculate
First ultrasonic sensor is issued every time when ultrasonic signal to second ultrasonic sensor receives echo-signal
Second transmission range；
Based on calculated multiple second transmission ranges, the sitting posture state of human body is detected.
With reference to first aspect, the embodiment of the present application provides the third possible embodiment of first aspect, wherein institute
Processing unit is stated, is specifically used for:
Control first ultrasonic sensor and send ultrasonic signal, and control first ultrasonic sensor, with
And second ultrasonic sensor receives the echo-signal that the ultrasonic signal is reflected back through barrier；
It determines that first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determines and described the first surpass
Sonic sensor receives the time of reception of echo-signal every time and second ultrasonic sensor receives echo every time
The time of reception of signal；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, respectively
Calculate first ultrasonic sensor issue every time ultrasonic signal to first ultrasonic sensor receive echo letter
Number when the first transmission range and first ultrasonic sensor issue ultrasonic signal every time to second ultrasonic wave
Sensor receives the second transmission range when echo-signal；
When the variable condition and calculated multiple second transmission distances of calculated multiple first transmission ranges
From variable condition it is consistent when, based on calculated multiple first transmission ranges or it is calculated it is multiple it is described second transmission
Distance detects the sitting posture state of human body.
The third possible embodiment with reference to first aspect, the embodiment of the present application provide the 4th kind of first aspect
Possible embodiment, wherein the processing unit is specifically used for:
When the variable condition and calculated multiple second transmission distances of calculated multiple first transmission ranges
From variable condition it is inconsistent when, by the received echo-signal of the first ultrasonic sensor be converted to the first pulse signal,
And the received echo-signal of the second ultrasonic sensor is converted into the second pulse signal；
First pulse signal and second pulse signal are asked and after operation, obtain third pulse signal；
Based on the third pulse signal, determine that first ultrasonic sensor receives the reception of echo-signal every time
Moment and second ultrasonic sensor receive the time of reception of echo-signal every time；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, calculate
When first ultrasonic sensor issues ultrasonic signal to first ultrasonic sensor every time and receives echo-signal out
Third transmission range, or calculate first ultrasonic sensor issue every time ultrasonic signal to it is described second ultrasound
Wave sensor receives the 4th transmission range when echo-signal；
Based on calculated multiple third transmission ranges or calculated multiple 4th transmission ranges, the sitting posture of human body is detected
State.
Second aspect, the embodiment of the present application also provides a kind of desk lamp, including lamp cap, lamppost and pedestal, the pedestal with
The bottom end of the lamppost connects, and the lamp cap is connect with the top of the lamppost, the desk lamp further include above-mentioned first aspect with
And sitting posture detection device described in the above-mentioned any possible embodiment of first aspect.Wherein, first ultrasonic wave passes
Sensor is installed on the lamp cap, and second ultrasonic sensor is installed on the lamppost.
The third aspect is applied to above-mentioned first aspect or the embodiment of the present application also provides a kind of sitting posture detecting method
On the one hand in sitting posture detection device described in any possible embodiment, alternatively, being applied to described in above-mentioned second aspect
Desk lamp in.This method comprises:
It controls the first ultrasonic sensor or the second ultrasonic sensor and sends ultrasonic signal, and control and described the first surpass
Sonic sensor and/or second ultrasonic sensor receive the echo letter that the ultrasonic signal is reflected back through barrier
Number；Wherein, first ultrasonic sensor and second the ultrasonic sensor inclined angle between horizontal plane respectively
Installation, the location of described first ultrasonic sensor are higher than the location of described second ultrasonic sensor；
It is spaced between the time of reception of echo-signal being reflected back based on the sending instant by ultrasonic signal to receiving
The transmission speed for transmitting duration and ultrasonic signal, calculates the transmission range of ultrasonic signal；
Based on calculated transmission range, the sitting posture state of human body is detected.
In conjunction with the third aspect, the embodiment of the present application provides the first possible embodiment of the third aspect, wherein institute
It states based on calculated transmission range, detects the sitting posture state of human body, comprising:
Determine the mean value between the calculated transmission range of continuous n times, N is positive integer；
When detecting determining mean value not in preset standard value range, the first prompt information of output, described first
Prompt information is for prompting user's abnormal sitting posture true.
In conjunction with the third aspect, the embodiment of the present application provides second of possible embodiment of the third aspect, wherein institute
It states based on calculated transmission range, detects the sitting posture state of human body, comprising:
Determine the mean value between the calculated transmission range of continuous n times, N is positive integer；
When detecting that determining mean value does not change in preset duration, the second prompt information of output, described second
Prompt information is for prompting change sitting posture.
In conjunction with the third aspect, the embodiment of the present application provides the third possible embodiment of the third aspect, wherein institute
It states based on calculated transmission range, detects the sitting posture state of human body, comprising:
Determine the mean value between the calculated transmission range of continuous n times, N is positive integer；
When detecting that determining mean value is greater than the first preset value, first ultrasonic sensor and described second are controlled
Ultrasonic sensor stops working；
When detecting determining mean value less than the second preset value, first ultrasonic sensor and described second are controlled
Ultrasonic sensor is reworked.
Fourth aspect, the application also provide a kind of electronic equipment, comprising: processor, memory and bus, the memory
The executable machine readable instructions of the processor are stored with, when electronic equipment operation, the processor and the memory
Between by bus communication, the machine readable instructions execute the above-mentioned third aspect or third party when being executed by the processor
In face the step of sitting posture detecting method described in any possible embodiment.
5th aspect, the embodiment of the present application also provide a kind of computer readable storage medium, the computer-readable storage medium
Computer program is stored in matter, which executes when being run by processor in the above-mentioned third aspect or the third aspect
The step of sitting posture detecting method described in any possible embodiment.
In the embodiment of the present application, inclined angle and the super of different height is placed between horizontal plane by configuring two
Sonic sensor can make the wave beam angular coverage of two ultrasonic sensors overlap, thus super using one of them
Sonic sensor sends ultrasonic signal, itself and another can receive ultrasonic wave in the wave beam angular coverage of overlapping
The echo-signal that signal is reflected back through barrier.Also, by the way that suitable tilt angle is arranged in the application, so that two ultrasounds
The wave beam angular coverage of wave sensor overlapping is avoided around desktop, it is possible thereby to avoid some objects placed on desktop as far as possible
The transmission belt of ultrasonic signal is blocked, to effectively exclude other shelters for the seat of detection human body by physics mode
The interference of appearance state bring.
In the embodiment of the present application, it can control the first ultrasonic sensor or the second ultrasonic sensor send ultrasonic wave letter
Number, and control what the first ultrasonic sensor and/or the second ultrasonic sensor received ultrasonic signal were reflected back through barrier
Echo-signal.And then based on the sending instant by ultrasonic signal between the time of reception for receiving the echo-signal being reflected back
Every transmission duration and ultrasonic signal transmission speed, calculate the transmission range of ultrasonic signal, and based on calculated
Transmission range detects the sitting posture state of human body.By controlling two using different control strategies under different application scenarios
A ultrasonic sensor receiving and transmitting signal can effectively exclude other shelters and interfere the sitting posture state bring of detection human body,
To improve the accuracy detected to human body sitting posture.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of schematic diagram of internal structure of sitting posture detection device provided by the embodiments of the present application；
Fig. 2 shows a kind of structural schematic diagrams of desk lamp provided by the embodiments of the present application；
Fig. 3 shows the flow diagram of sitting posture detection process provided by the embodiments of the present application；
Fig. 4 shows schematic diagram of a scenario one provided by the embodiments of the present application；
Fig. 5 shows the flow diagram of sitting posture detection process provided by the embodiments of the present application；
Fig. 6 shows schematic diagram of a scenario two provided by the embodiments of the present application；
Fig. 7 shows the flow diagram of sitting posture detection process provided by the embodiments of the present application；
Fig. 8 shows schematic diagram of a scenario three provided by the embodiments of the present application；
Fig. 9 shows the schematic diagram of the calculating process provided by the embodiments of the present application for excluding the interference signal；
Figure 10 shows schematic diagram of a scenario four provided by the embodiments of the present application；
Figure 11 shows schematic diagram of a scenario five provided by the embodiments of the present application；
Figure 12 shows schematic diagram of a scenario six provided by the embodiments of the present application；
Figure 13 shows schematic diagram of a scenario seven provided by the embodiments of the present application；
Figure 14 shows the structural schematic diagram of electronic equipment provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall in the protection scope of this application.
Firstly, being illustrated to the specific structure of sitting posture detection device provided by the present application.The sitting posture detection device includes
Processing unit and the first ultrasonic sensor and the second ultrasonic sensor being separately connected with processing unit.Wherein, it handles
Unit includes central processing unit, further includes that the ultrasonic wave transmitting line handled ultrasonic signal and ultrasonic wave receive circuit
Deng.
In a kind of possible embodiment, the schematic diagram of internal structure of the sitting posture detection device is as shown in Figure 1, include center
Processor, the first ultrasonic sensor, the first ultrasonic wave transmitting line being connected with the first ultrasonic sensor and the first surpass
Acoustic receiver circuit, the second ultrasonic sensor, the second ultrasonic wave transmitting line being connected with the second ultrasonic sensor and
Second ultrasonic wave receives circuit.Wherein, the first ultrasonic wave transmitting line and the second ultrasonic wave transmitting line include one-way damper,
And driving circuit.First ultrasonic wave receive circuit and the second ultrasonic wave receive circuit include protection circuit, signal amplification circuit,
Envelope detection unit and comparison circuit.
By taking the first ultrasonic sensor receiving and transmitting signal as an example, the course of work of processing unit is briefly described.Sitting posture
In the state that detection device is powered, central processing unit can send driving pulse to the first ultrasonic wave transmitting line, to control the
The ultrasonic signal of one ultrasonic sensor transmission certain frequency.Ultrasonic signal is blocking back reflection Huis wave by barrier
Signal, echo-signal can be received by the first ultrasonic sensor, so be transmitted to the first ultrasonic wave receive circuit in successively into
Row processing.Specifically, can be by protecting circuit to protect echo-signal, and then processing is amplified to echo-signal,
The range value of amplified echo-signal is set to can achieve the range value that can be recognized by central processing unit.Further, may be used
To carry out envelope detection processing to echo-signal, echo-signal, which is converted to, to be believed by the simulation that central processing unit recognizes
Number, and then it is input to comparison circuit, comparison circuit can convert analog signal when determining that analog signal meets preset condition
The digital signal that can identify for central processing unit and being input in central processing unit is analyzed and processed.
It should be understood that the second ultrasonic sensor receiving and transmitting signal, or control can also be controlled by processing unit in practical application
It makes a ultrasonic sensor in the first ultrasonic sensor and sends ultrasonic signal, another ultrasonic sensor is for connecing
Receive the echo-signal etc. being reflected back.The course of work of processing unit is referred to above-mentioned embodiment party under above-mentioned several operating modes
The associated description of formula, which is not described herein again.
Above-mentioned sitting posture detection device shown in FIG. 1 can be individually carry out using.For example, ought individually carry out in use, sitting
Appearance detection device can also include fixed device, column etc..For the fixation device for column to be steadily placed on, this is solid
Determining device is, for example, pedestal, or adhering part with fixed function etc..
Above-mentioned sitting posture detection device shown in FIG. 1 can also be applied in combination with some equipment on desktop, such as can incite somebody to action
Sitting posture detection device is mounted on desk lamp or on computer display screen etc., so that the sitting posture to human body detects.
Due to consideration that on desktop may holding water cup and other items, these objects may be fallen into wave beam angular coverage
The transmission belt of ultrasonic signal is blocked, interference is brought to the sitting posture of detection human body.In addition, when sitting posture detection device is mounted on
When on desk lamp, since the lamp cap of desk lamp can swing up and down or swing, and lamp cap is during the swing, it is also possible to fall into
The transmission belt of ultrasonic signal is blocked in wave beam angular coverage, interference is brought to the sitting posture of detection human body.Therefore in order to mention
The accuracy for rising detection human body sitting posture needs to eliminate the interference of the external factor bring such as these shelters.
In view of the above-mentioned problems, above-mentioned sitting posture detection device shown in FIG. 1 can be based in the embodiment of the present application, by difference
Application scenarios under controlled using different control strategies the first ultrasonic sensor and the second ultrasonic sensor transmitting-receiving letter
Number, it can effectively exclude the external factor such as object or the lamp cap on desktop and the sitting posture state bring of detection human body is interfered, from
And improve the accuracy detected to human body sitting posture.
In specific implementation, under different application scenarios, processing unit can control the first ultrasonic sensor or second
Ultrasonic sensor sends ultrasonic signal, and the first ultrasonic sensor of control and/or the second ultrasonic sensor receive and surpass
The echo-signal that acoustic signals are reflected back through barrier.Further, processing unit is also based on the hair by ultrasonic signal
Send the moment to the transmission for the transmission duration and ultrasonic signal being spaced between the time of reception for receiving the echo-signal being reflected back
Speed calculates the transmission range of ultrasonic signal, and is based on calculated transmission range, detects the sitting posture state of human body.
In the embodiment of the present application, the location of first ultrasonic sensor can be higher than locating for the second ultrasonic sensor
Position, and the first ultrasonic sensor and the second ultrasonic sensor can the inclined angle peaces between horizontal plane respectively
Dress, for example, the first ultrasonic sensor can be tilted down on the basis of horizontal plane, the second ultrasonic sensor is with horizontal plane
Benchmark is tilted or is horizontally mounted upwards.By this mounting means, the first ultrasonic sensor and the second ultrasonic wave can be made to pass
The wave beam angular coverage of sensor overlaps.In this way, the ultrasonic signal that the first ultrasonic sensor is sent hides by barrier
After gear, the echo-signal that is reflected back can be received by itself and/or the second ultrasonic sensor.Also, by the first to surpass
Suitable tilt angle is arranged in sonic sensor and the second ultrasonic sensor, can make two ultrasonic sensor overlappings
Wave beam angular coverage is avoided around desktop, and thus, it is possible to avoid some objects placed on desktop to ultrasonic signal as far as possible
Transmission belt is blocked, and is interfered to effectively exclude other shelters for detecting the sitting posture state bring of human body.
Evading external factor above by reasonable mounting means is arranged is this to human body sitting posture detection bring interference
One of scheme provided is provided, in the embodiment of the present application, ultrasound can also be controlled by using different control strategies
The operating mode of wave sensor, to evade external factor to human body sitting posture detection bring interference.
Technical solution provided by the present application in order to better understand is applied on desk lamp with above-mentioned sitting posture detection device below
For, the specific work process of sitting posture detection device is described in detail.It should be understood that the application in sitting posture detection device in addition to
Except being mounted on desk lamp, it can also be mounted in other desk devices, such as computer etc., the working principle used is identical,
The application no longer introduces one by one herein.
Firstly, referring to shown in Fig. 2, which includes lamp cap 210, lamppost 220 and pedestal 230, pedestal 230 and lamppost 220
Bottom end connection, lamp cap 210 connect with the top of lamppost 220.Wherein, the first ultrasonic sensor 240 is mounted on lamp cap 210
On, the second ultrasonic sensor 250 is mounted on lamppost 220.
In view of the position of lamp cap 210 may be adjusted according to different use habit users during using desk lamp,
Such as front and back stretching, angular adjustment etc. can be carried out to lamp cap.This results in the first ultrasonic sensor 240 can be with lamp cap
210 swing and swing.And since the field angle of ultrasonic sensor is larger, generally at 70 ° to 80 ° or so, so that with lamp cap
Swing, cause between the first ultrasonic sensor 240 and the second ultrasonic sensor 250 apart when lamp cap is swung downwards
When difference in height is smaller, lamp cap and the first ultrasonic sensor 240 may become the second ultrasonic sensor 250 and send ultrasound
Shelter when wave signal, at this moment if not choosing suitable control strategy to control the first ultrasonic sensor and the second ultrasound
Wave sensor receiving and transmitting signal may result in lamp cap and the first ultrasonic sensor 240 and bring interference to human body sitting posture detection.
It is introduced respectively below for the treatment process under different application scenarios.
Between the location of one: the first ultrasonic sensor of application scenarios and the second ultrasonic sensor location
Difference in height be less than preset height threshold value.
Under above-mentioned scene, ultrasonic signal is sent according to the second ultrasonic sensor, and by the second supersonic sensing
Device is responsible for reception, then may include in the second ultrasonic sensor received signal anti-after the first ultrasonic sensor blocks
The echo-signal being emitted back towards.Under some special scenes, for example, the first ultrasonic sensor wave beam angular coverage it is larger when,
Send ultrasonic signal according to the second ultrasonic sensor, the first ultrasonic sensor is responsible for reception, then the first surpassing
It may include in sonic sensor received signal and blocked without barrier, directly received by the first ultrasonic sensor super
Acoustic signals.Interference can be brought to sitting posture detection process to there are interference signals under above two situation.
Therefore in the embodiment of the present application, process shown in Fig. 3 is referred in the sitting posture detection process of application scenarios once and is shown
Intention and schematic diagram of a scenario shown in Fig. 4:
Step 301, the first ultrasonic sensor of control send ultrasonic signal, and control the first ultrasonic sensor and receive
The echo-signal that ultrasonic signal is reflected back through barrier.
Step 302 determines that the first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determination the first surpasses
Sonic sensor receives the time of reception of echo-signal every time.
The sending instant and the transmission of the time of reception and ultrasonic signal determined speed that step 303, basis are determined
Degree, calculate the first ultrasonic sensor issue every time when ultrasonic signal to the first ultrasonic sensor receives echo-signal the
One transmission range.
Step 304 is based on calculated multiple first transmission ranges, detects the sitting posture state of human body.
Schematic diagram of a scenario as shown in connection with fig. 4, since the first ultrasonic sensor is located at higher position, what is be subject to is blocked
The influence of object is smaller, therefore can send ultrasonic signal and receives echo-signal by the first ultrasonic sensor, measures
First ultrasonic sensor is transferred to human body and is reflected back the transmission range 2b between the first ultrasonic sensor by human body.Tool
Body, the sending instant of ultrasonic signal can be recorded with periodicity sending ultrasonic signal, and record and receive echo letter every time
Number the time of reception determine transmission duration and then according to the sending instant of record and the time of reception.Then, formula 2b is utilized
=vt calculates transmission range, wherein v is the transmission speed of ultrasonic signal, such as takes 340m/s, and t is transmission time.Into one
Step ground, after measurement obtains multiple transmission ranges, can make a concrete analysis of according to the mean value sought between multiple transmission ranges
The sitting posture state of human body, and prompt information can also be sent when detecting sitting posture abnormal state.About detection and prompt
Process will be described in detail below, wouldn't introduce here.
Between the location of two: the first ultrasonic sensor of application scenarios and the second ultrasonic sensor location
Difference in height be not less than preset height threshold value.
Under above-mentioned scene, the first ultrasonic sensor will not bring interference to sitting posture detection process, pay close attention on desktop emphatically
Chaff interferent to sitting posture detection process bring interfere.
Therefore in the embodiment of the present application, the sitting posture detection process under application scenarios two is referred to process shown in fig. 5 and shows
Intention and schematic diagram of a scenario shown in fig. 6:
Step 501, the first ultrasonic sensor of control send ultrasonic signal, and control the second ultrasonic sensor and receive
The echo-signal that ultrasonic signal is reflected back through barrier.
Step 502 determines that the first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determination the second surpasses
Sonic sensor receives the time of reception of echo-signal every time.
The sending instant and the transmission of the time of reception and ultrasonic signal determined speed that step 503, basis are determined
Degree, calculate the first ultrasonic sensor issue every time when ultrasonic signal to the second ultrasonic sensor receives echo-signal the
Two transmission ranges.
Step 504 is based on calculated multiple second transmission ranges, detects the sitting posture state of human body.
Schematic diagram of a scenario as shown in connection with fig. 6, since the first ultrasonic sensor is located at higher position, what is be subject to is blocked
The influence of object is smaller, therefore can send ultrasonic signal by the first ultrasonic sensor, is connect by the second ultrasonic sensor
The echo-signal being reflected back is received, the first ultrasonic sensor is measured and is transferred to human body and the second ultrasonic wave biography is reflected back by human body
Transmission range b+c between sensor.Wherein, can join about the specific calculation of transmission range and subsequent analysis process
According to the description in application scenarios one, I will not elaborate.
Certainly, in practical application, if the position that the second ultrasonic sensor is installed on lamppost is higher, and lamp cap installation
First ultrasonic sensor does not bring the second ultrasonic sensor and blocks, and the shelter on its desktop is relatively low, does not also have
Have and the second ultrasonic sensor brought when blocking, can also be responsible for sending by the second ultrasonic sensor ultrasonic signal and
Receives echo-signal, or by the second ultrasonic sensor be responsible for sending ultrasonic signal, be connect by the first ultrasonic sensor
Receive echo-signal.The process of subsequent measurement transmission range and analysis sitting posture state is referred to above-mentioned under both operating modes
Description in application scenarios one and two, I will not elaborate.
In the embodiment of the present application, for above-mentioned application scenarios one and application scenarios two, another sitting posture detection is additionally provided
Processing mode.Specifically, sitting posture detection process is referred to flow diagram shown in Fig. 7 and scene shown in Fig. 8 is shown
It is intended to:
Step 701, control the first ultrasonic sensor send ultrasonic signal, and control the first ultrasonic sensor, with
And second echo-signal that is reflected back through barrier of ultrasonic sensor received ultrasonic signal.
Step 702 determines that the first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determination the first surpasses
Sonic sensor receives the time of reception of echo-signal every time and the second ultrasonic sensor receives echo-signal every time
The time of reception.
The sending instant and the transmission of the time of reception and ultrasonic signal determined speed that step 703, basis are determined
Degree, calculates separately out the first ultrasonic sensor and issues ultrasonic signal to the first ultrasonic sensor every time and receive echo-signal
When the first transmission range and the first ultrasonic sensor issue ultrasonic signal to the second ultrasonic sensor every time and receive
The second transmission range when echo-signal.
Whether step 704, the variable condition for judging the first transmission range are consistent with the variable condition of the second transmission range.
If consistent, 705 are thened follow the steps；If inconsistent, 706 are thened follow the steps to step 710.
Wherein, if the variable condition of the variable condition of the first transmission range and the second transmission range is while becoming larger or becoming
It is small, then being not affected by the interference of other shelter brings, such case it is considered that carry out more accurate when transmission range measurement
Under, the first transmission range and the second transmission range measured are all relatively more accurate, therefore can be according to the first transmission range or second
Transmission range analyzes human body sitting posture state.Conversely, if the variation of the variable condition of the first transmission range and the second transmission range
State is one and becomes larger that one becomes smaller, then there is exception when it is considered that carrying out transmission range measurement, it may be by other screenings
The interference of block material bring.In this case it can re-measure, or interference is carried out to received echo-signal and is handled, then
Using the echo-signal gone after interfering, human body sitting posture state is further analyzed.
Step 705 is based on calculated multiple first transmission ranges or calculated multiple second transmission ranges, detects people
The sitting posture state of body.
The received echo-signal of first ultrasonic sensor is converted to the first pulse signal and by second by step 706
The received echo-signal of ultrasonic sensor is converted to the second pulse signal.
First pulse signal and the second pulse signal are asked and after operation, obtain third pulse signal by step 707.
Specifically, due in the identical situation of sending instant in ultrasonic signal, the first transmission range for measuring
It is different with the variable condition of the second transmission range, therefore can derive that the first ultrasonic sensor and the second ultrasonic sensor connect
The echo-signal received is not necessarily identical, and is distinguished collected echo by the two ultrasonic sensors of comparative analysis and is believed
Number, the echo-signal that other shelters in wave beam angular coverage in addition to the human body are reflected back can be filtered out, is identified
The echo-signal being reflected back out by human body.
In the embodiment of the present application, the received echo-signal of the first ultrasonic sensor can be converted to the first pulse letter
Number and the received echo-signal of the second ultrasonic sensor is converted into the second pulse signal.By by the first pulse signal
With the second pulse signal asked with after operation, available third pulse signal.Since third pulse signal is to eliminate it
Pulse signal caused by the echo-signal being reflected back through human body is received after the interference of its shelter, therefore can be based on third pulse
Signal determines the transmission being spaced between the time of reception for the echo-signal being reflected back by sending instant to the reception of ultrasonic signal
Duration, so the sitting posture detection device or desk lamp determined be spaced between human body at a distance from it is more accurate.
For example, referring to the schematic diagram of the calculating process for excluding the interference signal shown in Fig. 9, it is assumed that by the first ultrasonic wave
The first pulse signal waveform 1 that sensor receives echo-signal is converted into indicates, the second ultrasonic sensor is received echo
The second pulse signal waveform 2 that signal is converted into indicates, then by asking with the third pulse signal that after operation, obtains such as
Shown in waveform 3.It is done in this way, can effectively remove into brought by other shelters in the wave beam angular coverage of ultrasonic wave
It disturbs, improves the accuracy of detection human body sitting posture state.
Step 708 is based on third pulse signal, determines that the first ultrasonic sensor receives the reception of echo-signal every time
Moment and the second ultrasonic sensor receive the time of reception of echo-signal every time.
The sending instant and the transmission of the time of reception and ultrasonic signal determined speed that step 709, basis are determined
Degree calculates the first ultrasonic sensor and is issued when ultrasonic signal to the first ultrasonic sensor receives echo-signal every time
Third transmission range, or calculate the first ultrasonic sensor and issue ultrasonic signal to the second ultrasonic sensor every time and receive
The 4th transmission range when to echo-signal.
Step 710 is based on calculated multiple third transmission ranges or calculated multiple 4th transmission ranges, detects people
The sitting posture state of body.
In the time of reception determined using third pulse signal, to calculate third transmission range or the 4th transmission range
When, calculated result can be made more accurate, therefore it is subsequent can use it is any in third transmission range and the 4th transmission range
A kind of sitting posture state to analyze human body can also make analysis result more accurate.
It can be determined first after calculating transmission range for the process flow provided under above-mentioned several application scenarios
Mean value between the calculated transmission range of continuous n times, N is positive integer, it is possible to further be examined based on calculated mean value
The sitting posture state of human body is surveyed, and when the sitting posture state for detecting human body occurs abnormal, is prompted.It is set forth below several specific
Embodiment:
Embodiment one: when detecting determining mean value not in preset standard value range, output the first prompt letter
Breath, the first prompt information is for prompting user's abnormal sitting posture true.
Wherein, preset standard value range is for example indicated with [a, b], and a, b are positive integer, and a is less than b, wherein when sitting posture is examined
When surveying device or the distance between desk lamp and human body less than a, illustrate that human body is excessively close from sitting posture detection device, and then can prompt to use
Sitting posture inaccuracy in family illustrates human body from sitting posture detection dress when sitting posture detection device or the distance between desk lamp and human body are greater than b
It sets too far, and then it is inaccurate to prompt user's sitting posture, or it is also assumed that is that user has left seat, and then can stop
Detection.
Embodiment two: when detecting that determining mean value does not change in preset duration, output the second prompt letter
Breath, the second prompt information is for prompting change sitting posture.
Specifically, above-mentioned first prompt information or the second prompt information can be voice prompting, voice adds animation, voice adds
The content-forms such as flash lamp are prompted.Also, if above-mentioned sitting posture detection device further includes display screen, then display can be passed through
Screen exports above-mentioned first prompt information or the second prompt information.
Embodiment three: when detecting that determining mean value is greater than the first preset value, wherein the first preset value can be set
For a biggish value, in this case, illustrate user possibly off seat, therefore can control the first ultrasonic sensor and
Second ultrasonic sensor stops working.
When detecting determining mean value less than the second preset value, wherein preset standard can be set in the second preset value
Any value being worth in range illustrates that user has been returned to seat in this case, controls the first ultrasonic sensor and the second surpasses
Sonic sensor is reworked.
In addition, being also provided with microswitch in sitting posture detection device in the embodiment of the present application, which is used for
It controls two ultrasonic sensors to start to work or power cut-off, in this way, user is needing to continue to allow two supersonic sensings
When device works, the microswitch need to be only opened.
It should be understood that being directed to different application scenarios, above embodiment one to embodiment three can be combined with each other
It uses, the application does not limit this.
In the embodiment of the present application, also provide a kind of automatic identifying method, can by detection the first ultrasonic sensor and
Whether the distance being spaced between second ultrasonic sensor carrys out the first ultrasonic sensor of automatic identification to the second supersonic sensing
The ultrasonic signal that device is sent, which is brought, to be blocked, and then controls first using different control strategies under different application scenarios
Ultrasonic sensor and the second ultrasonic sensor.In the following, being installed on desk lamp with sitting posture detection device, the first supersonic sensing
For device is located at lamp cap, the second ultrasonic sensor is located on lamppost, automatic identifying method is illustrated.
It is possible, firstly, to judge the relative positional relationship between the first ultrasonic sensor and human body, specific deterministic process
It is as follows:
The first step, the first ultrasonic sensor of control issue ultrasonic signal and control the first ultrasonic sensor and be received back
Wave signal, by measurement ultrasonic transmission duration and transmission speed, calculate between the first ultrasonic sensor and human body away from
From b1.
Second step, the second ultrasonic sensor of control issue ultrasonic signal and control the second ultrasonic sensor and be received back
Wave signal, by measurement ultrasonic transmission duration and transmission speed, calculate between the second ultrasonic sensor and human body away from
From a1.
Third step, when human body moves backward a distance, repeat the calculating process of above-mentioned two step, calculate separately out
The distance between first ultrasonic sensor and human body b1 ' and the distance between the second ultrasonic sensor and human body a1 '.
Whether 4th step, to compare (b1 '-b1) and (a1 '-a1) equal.
Situation 1: as (b1 '-b1)=(a1 '-a1), illustrate that human head location is higher than desk lamp or human body head position
It sets with desk lamp holder in a horizontal plane, referring to Fig.1 shown in 0.
Situation 2: as (b1 '-b1) < (a1 '-a1), illustrate human body head lower than desk lamp, position of human body and supersonic sensing
Device 2 is not in same plane, referring to Fig.1 shown in 1.
It is possible to further be directed to above-mentioned two situations, calculates separately the first ultrasonic sensor and the second ultrasonic wave passes
Relative positional relationship between sensor.
For situation 1:(b1 '-b1)=(a1 '-a1)
Schematic diagram of a scenario shown in 2 referring to Fig.1, specific calculating process are as follows:
The first step, the horizontal distance for calculating the first ultrasonic sensor to the second ultrasonic sensor: L1=(a1-b1).
Second step, the first ultrasonic sensor issue ultrasonic wave, and the second ultrasonic sensor receives echo-signal passes through survey
It measures ultrasonic wave and propagates duration and transmission speed, calculate the first ultrasonic sensor and issue ultrasonic signal to the second ultrasound
Wave sensor receives transmission range when echo-signal: 340t/2=2b+c.
Third step, basisAnd 340t/2=2b+c, calculate b and c.
4th step, according to a12+H2=(c+b)2, calculate distance H shown in Figure 12.
5th step, according to y12+b12=b2, calculate distance y1 shown in Figure 12.
6th step calculates accurate location of first ultrasonic sensor relative to the second ultrasonic sensor:
Horizontal distance: L1=(a1-b1)；
Vertical range: L2=H+y1.
For situation 2:(b1 '-b1) < (a1 '-a1)
Schematic diagram of a scenario shown in 3 referring to Fig.1, specific calculating process are as follows:
The first step, the second ultrasonic sensor of control send ultrasonic signal, and control the second ultrasonic sensor and receive
Echo-signal, by measurement ultrasonic transmission duration and transmission speed, calculate between the second ultrasonic sensor and human body away from
From a.
Second step, the first ultrasonic sensor of control send ultrasonic signal, and control the first ultrasonic sensor and receive
Echo-signal, by measurement ultrasonic transmission duration and transmission speed, calculate between the first ultrasonic sensor and human body away from
From b.
Third step, the second ultrasonic sensor of control send ultrasonic signal, and control the first ultrasonic sensor and receive
Echo-signal calculates distance c shown in Figure 13 by measurement ultrasonic transmission duration and transmission speed.
4th step, according to a2+H2=(c+b)2, calculate distance H shown in Figure 13.
5th step, basisCalculate distance s shown in Figure 13.
6th step, according to s2+y12=b2, calculate y1 shown in Figure 13.
7th step calculates accurate location of first ultrasonic sensor relative to the second ultrasonic sensor:
Horizontal distance: L1=a-s；
Vertical range: L2=H+y1.
Pass through analysis level distance and vertical range, it can be determined that whether go out the first ultrasonic sensor to the second ultrasonic wave
Sensor causes to block, and determines different application scene, subsequent that different control strategies can be chosen according to different application scene
To carry out the detection of human body sitting posture.
Based on the same technical idea, the embodiment of the present application also provides a kind of electronic equipment, tie shown in 4 referring to Fig.1
Structure schematic diagram, the equipment 1400 include processor 1401, memory 1402 and bus 1403, and the storage of memory 1402 is held
Row instruction, it is logical by bus 1403 between the processor 1401 and the memory 1402 when the equipment 1400 operation
Letter, the processor 1401 executes the described of the storage of memory 1402 and executes instruction, so that the equipment 1400 executes
The step of stating sitting posture detecting method as described in the examples.
Based on the same technical idea, the embodiment of the present application also provides a kind of computer readable storage medium, the computer
Computer program is stored on readable storage medium storing program for executing, which executes described in above-described embodiment when being run by processor
Sitting posture detecting method the step of.
The embodiment of the present application also provides a kind of computer program product, deposits including storing the computer-readable of program code
The step of storage media, the instruction that said program code includes can be used for executing sitting posture detecting method described in above-described embodiment,
For details, reference can be made to above-described embodiments, and details are not described herein.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description the application and simplify description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as the limitation to the application.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in this application.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution.The protection in the application should all be covered
Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (12)
1. a kind of sitting posture detection device characterized by comprising processing unit and be separately connected with the processing unit
First ultrasonic sensor and the second ultrasonic sensor；
First ultrasonic sensor and the second ultrasonic sensor inclined angle installation between horizontal plane respectively,
The location of described first ultrasonic sensor is higher than the location of described second ultrasonic sensor；
The processing unit sends ultrasonic wave for controlling first ultrasonic sensor or second ultrasonic sensor
Signal, and control first ultrasonic sensor and/or second ultrasonic sensor reception ultrasonic signal warp
The echo-signal that barrier is reflected back；And based on sending instant by ultrasonic signal to receiving the echo-signal being reflected back
The transmission speed of the transmission duration and ultrasonic signal that are spaced between the time of reception calculates the transmission range of ultrasonic signal；
Based on calculated transmission range, the sitting posture state of human body is detected.
2. device as described in claim 1, which is characterized in that when the location of described first ultrasonic sensor with it is described
When difference in height between second ultrasonic sensor location is less than preset height threshold value, the processing unit is specific to use
In:
It controls first ultrasonic sensor and sends ultrasonic signal, and control described in the first ultrasonic sensor reception
The echo-signal that ultrasonic signal is reflected back through barrier；
It determines that first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determines first ultrasonic wave
Sensor receives the time of reception of echo-signal every time；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, described in calculating
First ultrasonic sensor issues first when ultrasonic signal to first ultrasonic sensor receives echo-signal every time
Transmission range；
Based on calculated multiple first transmission ranges, the sitting posture state of human body is detected.
3. device as described in claim 1, which is characterized in that when the location of described first ultrasonic sensor with it is described
When difference in height between second ultrasonic sensor location is not less than preset height threshold value, the processing unit, specifically
For:
It controls first ultrasonic sensor and sends ultrasonic signal, and control described in the second ultrasonic sensor reception
The echo-signal that ultrasonic signal is reflected back through barrier；
It determines that first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determines second ultrasonic wave
Sensor receives the time of reception of echo-signal every time；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, described in calculating
First ultrasonic sensor issues second when ultrasonic signal to second ultrasonic sensor receives echo-signal every time
Transmission range；
Based on calculated multiple second transmission ranges, the sitting posture state of human body is detected.
4. device as described in claim 1, which is characterized in that the processing unit is specifically used for:
It controls first ultrasonic sensor and sends ultrasonic signal, and control first ultrasonic sensor, Yi Jisuo
It states the second ultrasonic sensor and receives the echo-signal that the ultrasonic signal is reflected back through barrier；
It determines that first ultrasonic sensor sends the sending instant of ultrasonic signal every time, and determines first ultrasonic wave
Sensor receives the time of reception of echo-signal every time and second ultrasonic sensor receives echo-signal every time
The time of reception；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, calculate separately
When first ultrasonic sensor issues ultrasonic signal to first ultrasonic sensor every time and receives echo-signal out
The first transmission range and first ultrasonic sensor issue ultrasonic signal every time to second supersonic sensing
Device receives the second transmission range when echo-signal；
When the variable condition and calculated multiple second transmission ranges of calculated multiple first transmission ranges
When variable condition is consistent, it is based on calculated multiple first transmission ranges or calculated multiple second transmission distances
From detecting the sitting posture state of human body.
5. device as claimed in claim 4, which is characterized in that the processing unit is also used to:
When the variable condition and calculated multiple second transmission ranges of calculated multiple first transmission ranges
When variable condition is inconsistent, by the received echo-signal of the first ultrasonic sensor be converted to the first pulse signal and
The received echo-signal of second ultrasonic sensor is converted into the second pulse signal；
First pulse signal and second pulse signal are asked and after operation, obtain third pulse signal；
Based on the third pulse signal, when determining that first ultrasonic sensor receives the reception of echo-signal every time
Quarter and second ultrasonic sensor receive the time of reception of echo-signal every time；
According to the transmission speed of the sending instant determined and the time of reception and ultrasonic signal determined, institute is calculated
State the first ultrasonic sensor issue every time when ultrasonic signal to first ultrasonic sensor receives echo-signal
Three transmission ranges, or calculate first ultrasonic sensor and issue ultrasonic signal to second ultrasonic wave every time and pass
Sensor receives the 4th transmission range when echo-signal；
Based on calculated multiple third transmission ranges or calculated multiple 4th transmission ranges, the sitting posture shape of human body is detected
State.
6. a kind of desk lamp, including lamp cap, lamppost and pedestal, the pedestal are connect with the bottom end of the lamppost, the lamp cap and institute
State the top connection of lamppost, which is characterized in that the desk lamp further include: sitting posture detection dress as claimed in claim 1 to 5
It sets；
Wherein, first ultrasonic sensor is installed on the lamp cap, and second ultrasonic sensor is installed on described
On lamppost.
7. a kind of sitting posture detecting method characterized by comprising
It controls the first ultrasonic sensor or the second ultrasonic sensor sends ultrasonic signal, and control first ultrasonic wave
Sensor and/or second ultrasonic sensor receive the echo-signal that the ultrasonic signal is reflected back through barrier；Its
In, first ultrasonic sensor and the second ultrasonic sensor inclined angle installation between horizontal plane respectively,
The location of described first ultrasonic sensor is higher than the location of described second ultrasonic sensor；
Based on the sending instant by ultrasonic signal to the transmission being spaced between the time of reception for receiving the echo-signal being reflected back
The transmission speed of duration and ultrasonic signal calculates the transmission range of ultrasonic signal；
Based on calculated transmission range, the sitting posture state of human body is detected.
8. the method for claim 7, which is characterized in that it is described to be based on calculated transmission range, detect the seat of human body
Appearance state, comprising:
Determine the mean value between the calculated transmission range of continuous n times, N is positive integer；
When detecting determining mean value not in preset standard value range, the first prompt information, first prompt are exported
Information is for prompting user's abnormal sitting posture true.
9. the method for claim 7, which is characterized in that it is described to be based on calculated transmission range, detect the seat of human body
Appearance state, comprising:
Determine the mean value between the calculated transmission range of continuous n times, N is positive integer；
When detecting that determining mean value does not change in preset duration, the second prompt information, second prompt are exported
Information is for prompting change sitting posture.
10. the method for claim 7, which is characterized in that it is described to be based on calculated transmission range, detect the seat of human body
Appearance state, comprising:
Determine the mean value between the calculated transmission range of continuous n times, N is positive integer；
When detecting that determining mean value is greater than the first preset value, first ultrasonic sensor and second ultrasound are controlled
Wave sensor stops working；
When detecting determining mean value less than the second preset value, first ultrasonic sensor and second ultrasound are controlled
Wave sensor is reworked.
11. a kind of electronic equipment characterized by comprising processor, memory and bus, the memory are stored with described
The executable machine readable instructions of processor, when electronic equipment operation, by total between the processor and the memory
Line communication, the machine readable instructions execute sitting posture inspection the method according to any one of claims 7 to 10 when being executed by the processor
The step of survey method.
12. a kind of computer readable storage medium, which is characterized in that be stored with computer journey on the computer readable storage medium
The step of sequence, which executes sitting posture detecting method the method according to any one of claims 7 to 10 when being run by processor.
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| CN201810966754.0A CN109239713B (en) | 2018-08-23 | 2018-08-23 | Sitting posture detection device, table lamp and sitting posture detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113261989A (en) * | 2021-04-15 | 2021-08-17 | 西安吾一界电子科技有限公司 | Portable ultrasonic sitting posture monitoring system and method |
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