CN113384296B - Method for predicting behavior occurrence time, electronic device and storage medium - Google Patents
Method for predicting behavior occurrence time, electronic device and storage medium Download PDFInfo
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Abstract
The embodiment of the application discloses a method for predicting behavior occurrence time, electronic equipment and a storage medium. The method comprises the following steps: the ultrasonic device transmits an ultrasonic signal to a first target object; the processing unit calculates deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device; and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude. Therefore, the deformation amplitude of the first object extruded by the second object is measured through the ultrasonic ranging technology to predict the occurrence time of the target behavior corresponding to the second object, and the occurrence time of the target behavior can be predicted more accurately.
Description
Technical Field
The application belongs to the technical field of electronics, and particularly relates to a method for predicting behavior occurrence time, electronic equipment and a storage medium.
Background
In the outdoor, business and other occasions, if the toilet time is known in advance, an embarrassing scene can be effectively avoided. For some elderly people, or for special groups, it is important to be able to predict their bowel movements.
Disclosure of Invention
In view of the above, the present application proposes a method for predicting behavior occurrence time, an electronic device, and a storage medium, so as to achieve improvement of the above problem.
In a first aspect, an embodiment of the present application provides a method for predicting a behavior occurrence time, which is applied to an electronic device, where the electronic device includes an ultrasonic device and a processing unit, and the ultrasonic device is connected to the processing unit, and the method includes: the ultrasonic device transmits an ultrasonic signal to a first target object; the processing unit calculates deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device; and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude.
In a second aspect, an embodiment of the present application provides an electronic device, including an ultrasonic device and a processing unit: the ultrasonic device is used for transmitting ultrasonic signals to the first target object and receiving ultrasonic reflected signals; the processing unit is used for calculating deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device; and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude.
In a third aspect, embodiments of the present application provide a computer readable storage medium having program code stored therein, wherein the above-described method is performed when the program code is run.
The embodiment of the application provides a method for predicting behavior occurrence time, electronic equipment and a storage medium. Firstly, an ultrasonic device transmits an ultrasonic signal to a first object, a processing unit calculates deformation amplitude of the first object extruded by a second object based on an ultrasonic reflection signal received by the ultrasonic device, and predicts occurrence time of target behaviors corresponding to the second object based on the deformation amplitude. Therefore, the deformation amplitude of the first object extruded by the second object is measured through the ultrasonic ranging technology to predict the occurrence time of the target behavior corresponding to the second object, and the occurrence time of the target behavior can be predicted more accurately.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart illustrating a method for predicting behavior occurrence time according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating a method for predicting behavior occurrence times according to another embodiment of the present application;
FIG. 3 is a schematic diagram of an array arrangement of transducers according to another embodiment of the present application;
fig. 4 shows an ultrasonic time-delay focusing emission schematic diagram according to another embodiment of the present application;
FIG. 5 is a schematic diagram showing calculation of delay time parameters of an ultrasonic delay focusing emission according to another embodiment of the present application;
FIG. 6 is a schematic diagram showing a model of displacement measurement generated after a bladder is squeezed according to another embodiment of the present application;
FIG. 7 is a flow chart illustrating a method for predicting behavior occurrence times according to yet another embodiment of the present application;
FIG. 8 is a schematic diagram of an ultrasound echo signal beam forming according to yet another embodiment of the present application;
FIG. 9 shows a schematic representation of the displacement of a bladder according to a further embodiment of the present application after rectal compression;
FIG. 10 is a flow chart illustrating a method for predicting behavior occurrence times in accordance with yet another embodiment of the present application;
FIG. 11 is a flow chart illustrating a method for predicting behavior occurrence times in accordance with yet another embodiment of the present application;
FIG. 12 is a block diagram of an electronic device for predicting behavior occurrence time according to an embodiment of the present application;
fig. 13 is a block diagram showing a structure of an ultrasonic device according to still another embodiment of the present application;
FIG. 14 is a block diagram illustrating a system for predicting behavior occurrence times according to an embodiment of the present application;
fig. 15 shows a block diagram of a processing unit of an electronic device for executing the image processing method according to the embodiment of the present application in real time.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the outdoor, business and other occasions, if the toilet time is known in advance, an embarrassing scene can be effectively avoided; for some old people or special groups, the toilet time is predicted, so that nursing can be performed more effectively. In a related aspect, the method for predicting the bowel movement time includes: 1) By swallowing the test object and then detecting the rectal condition in an external non-invasive manner, the feeling of defecation is judged, and thus, the prediction of defecation time is made; 2) The thickness of the rectum is measured by ultrasonic ranging technology, so that the defecation time is predicted.
The inventor finds that in the research process of the related prediction target behavior occurrence time method, the defecation time is predicted by measuring the thickness of the rectum, and the ultrasonic wave can generate echo interference with larger amplitude for many times in the transmission process because the physiological position of the rectum is far away from the abdomen, so that the accuracy of distance measurement is influenced; meanwhile, excrement in the rectum is complex, medium is uneven, ultrasonic waves can be emitted for many times in the rectal transmission process, the signal-to-noise ratio of echo signals can be poor, the complexity of signal processing is increased, and the stability of rectal thickness measurement is affected. In addition, the signal-to-noise ratio of the ultrasonic echo signal in the current method for predicting the occurrence time of the target behavior needs to be improved, and the reliability of the measurement result is affected.
Therefore, the inventor proposes that the ultrasonic device transmits an ultrasonic signal to the first object, the processing unit calculates the deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device, predicts the occurrence time of the target behavior corresponding to the second object based on the deformation amplitude, measures the deformation amplitude of the first object extruded by the second object by the ultrasonic ranging technology to predict the occurrence time of the target behavior corresponding to the second object, and realizes the method, the electronic equipment and the storage medium capable of more accurately predicting the occurrence time of the target behavior.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a method for predicting behavior occurrence time provided in an embodiment of the present application is applied to an electronic device, where the electronic device includes an ultrasonic device and a processing unit, and the ultrasonic device is connected to the processing unit, and the method includes:
step S110: triggering the ultrasonic device to emit an ultrasonic signal to a first target object.
As one approach, wherein the ultrasound device may be a transducer array comprising a plurality of transducers, the ultrasound signal may be transmitted by the transducers to the first target.
Step S120: and calculating the deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device.
As a way, when the ultrasonic signal reaches the first object, the first object will reflect the ultrasonic signal, and after the transducer receives the ultrasonic reflected signal, the processing unit can calculate the deformation amplitude of the first object extruded by the second object according to the ultrasonic reflected signal received by the transducer.
Alternatively, the first target may be a bladder, the second target may be a rectum, one side of the rectum has a spine, the other side is abutted against the bladder, when a certain amount of excrement is accumulated in the rectum, the rectum bulges towards the bladder, and one side of the bladder is extruded to displace forwards. Thus, the amount of excrement accumulated in the rectum can be predicted by measuring the displacement of the bladder after being pressed, so that the defecation time prediction can be made.
For example, the transducer emits an ultrasonic signal to the bladder, an ultrasonic reflected signal is generated after the ultrasonic signal reaches two sides of the bladder, the processing unit can calculate a time difference by receiving the receiving time of the ultrasonic reflected signal for a plurality of times, and then the deformation amplitude generated by the bladder extruded by the rectum is calculated according to the propagation speed of the ultrasonic signal in the human body.
Step S130: and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude.
Illustratively, the defecation occurrence time can be predicted by calculating the deformation amplitude of the bladder after being extruded by the rectum.
According to the method for predicting the occurrence time of the behavior, firstly, an ultrasonic device transmits an ultrasonic signal to a first object, a processing unit calculates deformation amplitude of the first object extruded by a second object based on an ultrasonic reflection signal received by the ultrasonic device, and the occurrence time of the target behavior corresponding to the second object is predicted based on the deformation amplitude. Therefore, the deformation amplitude of the first object extruded by the second object is measured through the ultrasonic ranging technology to predict the occurrence time of the target behavior corresponding to the second object, and the occurrence time of the target behavior can be predicted more accurately.
Referring to fig. 2, a method for predicting behavior occurrence time provided in an embodiment of the present application is applied to an electronic device, where the electronic device includes an ultrasonic device and a processing unit, the ultrasonic device includes a plurality of transducers, a transmission control unit, and a reception processing unit, and the plurality of transducers are respectively connected to the transmission control unit and the reception processing unit, and the method includes:
step S210: triggering the emission control unit to control the plurality of transducers to emit ultrasonic signals to the first target object in a delayed emission mode, so that the plurality of ultrasonic signals emitted by the plurality of transducers reach the first target object at the same time.
The arrangement modes of the plurality of transducers can be three types, namely linear arrangement, matrix arrangement and quincuncial arrangement, as shown in fig. 3 (one point represents one transducer in fig. 3). From the effect, three arrangements and derivative modes thereof can achieve the effect of improving the signal to noise ratio, wherein compared with other two modes, the quincuncial arrangement has better effect because of better space property of focusing the sound field, and meanwhile, the quincuncial array formed by six transducers can achieve the effect of improving the signal to noise ratio in consideration of cost.
Further, the transmitting control unit controls the plurality of transducers to transmit ultrasonic signals to the first target object in a delayed transmitting mode, and the ultrasonic signals transmitted by the plurality of transducers can reach the first target object at the same time through delayed transmitting of the ultrasonic signals. The schematic diagram of the delayed focusing emission is shown in fig. 4, and the emission control unit controls each transducer to delay the emission of ultrasonic waves, so that the ultrasonic signals emitted by the transducers can reach the first target object at the same time, and the focusing effect is superimposed on the energy of the ultrasonic signals reaching the first target object, so that the signal-to-noise ratio of the system can be improved well.
The delay time parameter calculation mode is that the distance between the transducer and the first target object and the relative distance between the transducers are calculated according to the propagation speed C of the ultrasonic wave. For example, as shown in fig. 5, there are three transducers, the coordinates of the three transducers in the constructed coordinate system X are Z1 (0, y 1), Z2 (0, -y 1) and Z3 (0, 0), assuming that the (X, 0) position of the first object on the X coordinate system is known with the Z3 transducer with the coordinate of (0, 0) as a reference, the coordinate position of the first object and the coordinate positions of the three transducers can be calculated by calculating a distance formula between two points, and the positions of the transducers Z1 and Z2 from the object are d1 and d2, respectively, and the propagation speed C of the ultrasonic wave is known; since the coordinates of the transducer Z3 are used as reference points, the delay time parameters of the transducer Z1 and the transducer Z2 can be calculated by (d 1-x)/C, (d 2-x)/C.
Step S220: an echo time difference is calculated based on the received first echo signal and second echo signal.
As one mode, the ultrasonic reflection signals include a first echo signal and a second echo signal, the first echo signal is a signal reflected by a side, close to the electronic device, of the first target object, and the second echo signal is a signal reflected by a side, far away from the electronic device, of the first target object.
Optionally, the processing unit calculates an echo time difference through the first echo signal and the second echo signal, and further calculates deformation amplitude of the first object extruded by the second object through the echo time difference and the propagation speed of the ultrasonic wave.
The first target may be the bladder, the second target may be the rectum, and the deformation amplitude measurement model generated after the bladder is extruded by the rectum based on the ultrasonic ranging technique is shown in FIG. 6, and the ultrasonic signals are transmitted to the A position and the B position on two sides of the bladder due to the interfaceThe difference of acoustic impedances at two sides can generate echo, and the receiving processing unit can receive the echo R twice A 、R B The echo time difference Δt can be further obtained by calculating the time of the two received echoes.
Step S230: and calculating deformation amplitude of the first object extruded by the second object based on the echo time difference.
As one mode, the processing unit may calculate the deformation amplitude of the first object due to extrusion of the object based on the echo time difference obtained in the above mode and the propagation speed of the ultrasonic wave in the human body.
For example, as shown in FIG. 6, the deformation amplitude d can be obtained by knowing the ultrasonic propagation velocity (the ultrasonic propagation velocity in the human body is generally 1540 m/s) and calculating the echo time difference Δt 1 The method comprises the steps of carrying out a first treatment on the surface of the When the excrement in the rectum is continuously accumulated, the rectum begins to squeeze the bladder, one side of the bladder is squeezed, and when ultrasonic signals are transmitted to two sides of the bladder, the ultrasonic echo time of the two sides is shortened, and the deformation amplitude d can be obtained according to the transmission speed of the ultrasonic waves 2 The method comprises the steps of carrying out a first treatment on the surface of the Obtaining the deformation amplitude d 1 And deformation amplitude d 2 Then, the deformation amplitude delta d=d of the bladder extruded by the rectum can be obtained 1 -d 2 。
Step S240: and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude.
As one mode, the deformation amplitude of the first object extruded by the second object is calculated through the mode, and then the occurrence time of the target behavior corresponding to the second object can be predicted through the linear relation between the first object and the second object.
Illustratively, since the value of the deformation amplitude Δd of the bladder extruded by the rectum has a linear relationship with the accumulated amount M of excreta in the rectum, the linear relationship y=kx+b between the deformation amplitude Δd of the bladder extruded and the accumulated amount M of excreta in the rectum can be obtained by a linear fitting method; further, the threshold value of the excrement accumulation amount can be set by the obtained linear relationship, and the defecation time can be predicted in this way. For example, a relation table of the excrement accumulation amount M and the defecation time is established, the relation table is established by a calibration method (for example, when the excrement accumulation amount reaches M, the predicted defecation time is after 10 minutes), the defecation time is judged by a table look-up method, meanwhile, a threshold value M can be set, and when the defecation time is about to reach, the predicted result is sent out by the wireless unit. The defecation time is predicted through threshold grading judgment, so that better user experience can be provided.
According to the method for predicting the behavior occurrence time, the transmission control unit controls the plurality of transducers to transmit ultrasonic signals to the first target object in a delayed transmission mode, so that the ultrasonic signals transmitted by the plurality of transducers reach the first target object at the same time, the processing unit calculates an echo time difference based on the received first echo signal and the received second echo signal, and then calculates deformation amplitude of the first target object extruded by the second target object based on the echo time difference, and the occurrence time of the target behavior corresponding to the second target object is predicted based on the deformation amplitude. Therefore, the deformation amplitude of the first object extruded by the second object is measured through the ultrasonic ranging technology to predict the occurrence time of the target behavior corresponding to the second object, and the occurrence time of the target behavior can be predicted more accurately.
Referring to fig. 7, a method for predicting behavior occurrence time provided in an embodiment of the present application is applied to an electronic device, where the electronic device includes an ultrasonic device and a processing unit, the ultrasonic device includes a transmission control unit, a reception processing unit, and a plurality of transducers, and the plurality of transducers are respectively connected to the transmission control unit and the reception processing unit, and the method includes:
step S310: triggering the emission control unit to control the plurality of transducers to emit ultrasonic signals to the first target object in a delayed emission mode, so that the plurality of ultrasonic signals emitted by the plurality of transducers reach the first target object at the same time.
Step S320: the method comprises the steps of obtaining a plurality of first reflection signals which are respectively received by the plurality of transducers and reflected by the first target object, obtaining a plurality of first reflection signals, and obtaining a plurality of second reflection signals which are respectively received by the plurality of transducers and reflected by the first target object.
Step S330: and carrying out beam synthesis on the plurality of first reflected signals to obtain a first echo signal, and carrying out beam synthesis on the plurality of second reflected signals to obtain a second echo signal.
It should be noted that, in the process of transmitting and receiving the ultrasonic signal, the signal-to-noise ratio of the ultrasonic signal can be improved by controlling the method of forming the ultrasonic transmitting and receiving beam.
As one mode, the step of performing beam synthesis on the plurality of first reflected signals to obtain a first echo signal, and performing beam synthesis on the plurality of second reflected signals to obtain a second echo signal includes: the processing unit performs beam synthesis on the plurality of first reflected signals in a weighting mode to obtain first echo signals, wherein echo path lengths of the plurality of first reflected signals are different, and in the weighting mode, the weighting coefficient of the first reflected signals corresponding to the longer echo paths is smaller; and the processing unit performs beam synthesis on the plurality of second reflected signals in a weighting mode to obtain second echo signals, wherein echo path lengths of the plurality of second reflected signals are different, and in the weighting mode, the weighting coefficient of the second reflected signals corresponding to the longer echo paths is smaller.
Further, the ultrasonic reflected signals are received by a plurality of transducers, and the processing unit processes echo signals in a beam forming mode; the specific operation method is as follows: it is assumed that echo signals received by multiple transducers may be represented by a matrix as R 1 、R 2 、R 3 ....R i ]The reflected signals received by each transducer are weighted to achieve beam synthesis of echo signals, and the echo signals after beam synthesis can be expressed as r=ω 1 R 1 +ω 2 R 2 +ω 3 R 3 +...+ω i R i Wherein weight is weightedThe actual formation of the coefficients forms a window function, the echo signals of the main path are enhanced, the echo signals of the bypass path are reduced, for example, the weighting coefficient of the echo signals of the transducer close to the first target object is large, and the weighting coefficient of the echo signals of the transducer far away from the first target object is small; the wave beam forming schematic diagram of the ultrasonic echo signal is shown in fig. 8, so that the signal to noise ratio of the echo signal can be well improved, and a reliable original signal is provided for the following echo signal processing process.
Step S340: and acquiring envelope information of the first echo signal, and acquiring a characteristic point corresponding to the first echo signal based on the envelope information of the first echo signal.
As one embodiment, the envelope information of the first echo signal obtained in the above embodiment is extracted based on the first echo signal, and the envelope information may be obtained by hilbert transform. Further, the envelope signal is obtained through the envelope information, and the characteristic points of the envelope signal, generally the maximum peak value P of the envelope signal, are extracted MAX 。
Step S350: and acquiring envelope information of the second echo signal, and acquiring a characteristic point corresponding to the second echo signal based on the envelope information of the second echo signal.
As one mode, based on the second echo signal obtained in the above mode, envelope information is extracted from the second echo signal, and the envelope information can be obtained by hilbert transform. Further, the envelope signal is obtained through the envelope information, and the characteristic points of the envelope signal, generally the maximum peak value P of the envelope signal, are extracted MAX 。
Step S360: and taking the difference value of the respective corresponding time of the characteristic point corresponding to the first echo signal and the characteristic point corresponding to the second echo signal as an echo time difference.
As one mode, the processing unit records the time corresponding to the characteristic point corresponding to the first echo signal and the second echo signal respectively, and calculates the difference value of the time corresponding to the peak point of the two echo signals to obtain the echo time difference. Alternatively, the time of the echo signal can also be obtained by the sampling point number and the sampling rate of the ADC.
Step S370: and calculating deformation amplitude of the first object extruded by the second object based on the echo time difference.
As one way, the deformation amplitude of the first object extruded by the second object can be calculated according to the echo time difference obtained in the above way and the propagation speed of the ultrasonic signal in the human body.
Step S380: and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude.
As one approach, the first target may be the bladder and the second target may be the rectum.
Alternatively, as shown in fig. 9, when the bladder is not rectally crushed, the plurality of transducers receive echo signals to obtain distances on both sides of the bladder when not crushed, as shown in fig. 9 (a); when the bladder is extruded by the rectum, the transducers re-receive the echo signals to obtain the distances between two sides of the extruded bladder, as shown in fig. 9 (b); the displacement d generated after the bladder is squeezed can be obtained by making the difference between the distances of the two sides of the bladder when the bladder is not squeezed and the distances of the two sides of the bladder after the bladder is squeezed, and the accumulated excrement quantity of the rectum is deduced due to the linear relation between the displacement d and the accumulated excrement quantity of the rectum, so that the excrement accumulation quantity can be deduced, and finally, the defecation time can be predicted.
According to the method for predicting the occurrence time of the behaviors, the emission control unit controls the transducers to emit ultrasonic signals to the first target object in a delayed emission mode, the processing unit obtains reflected signals reflected by the first target object received by the transducers, performs beam synthesis on the reflected signals to obtain echo signals, obtains envelope information of the echo signals, extracts characteristic points corresponding to the envelope information of the echo signals, takes differences of respective corresponding time of the characteristic points corresponding to the first echo signals and the characteristic points corresponding to the second echo signals as echo time differences, calculates deformation amplitude of the first target object extruded by the second target object based on the echo time differences, and predicts the occurrence time of the target behaviors corresponding to the second target object based on the deformation amplitude. The method for simultaneously controlling the emission and the receiving wave beam formation of the ultrasonic wave through the ultrasonic sensor array improves the stability and the reliability of distance measurement.
Referring to fig. 10, a method for predicting behavior occurrence time provided in an embodiment of the present application is applied to an electronic device, where the electronic device includes an ultrasonic device and a processing unit, and the ultrasonic device is connected to the processing unit, and the method includes:
step S410: triggering the ultrasonic device to emit an ultrasonic signal to a first target object.
Step S420: and calculating the deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device.
Step S430: a plurality of configured amplitude thresholds is obtained.
As one mode, a plurality of amplitude thresholds are set according to the deformation amplitude generated by the extrusion of the first object by the second object, and different deformation amplitudes correspond to different amplitude thresholds.
Illustratively, a plurality of amplitude thresholds and corresponding intrarectal fecal matter metering are set according to the amplitude of deformation of the bladder by rectal compression, as shown in the following table:
| amplitude of deformation by extrusion | Cumulative amount of rectal excrement |
| d1 | M1 |
| d2 | M2 |
| d3 | M4 |
| d4 | M5 |
It will be appreciated that when the deformation amplitude of the bladder by the rectal compression reaches d1, the cumulative amount of faeces in the rectum is determined to be M1.
Step S440: and predicting the occurrence time of the target behavior corresponding to the second target object according to the amplitude threshold value reached by the deformation amplitude.
As one mode, the occurrence time of the target behavior corresponding to the second target object is predicted based on the amplitude threshold value reached by the judgment deformation amplitude.
Further, a plurality of amplitude thresholds are set according to deformation amplitude generated by the bladder extruded by the rectum, and meanwhile, the occurrence time of defecation behaviors is predicted according to different settings of the amplitude thresholds, as shown in the following table:
| amplitude of deformation by extrusion | Cumulative amount of rectal excrement | Defecation time prediction |
| d1 | M1 | The defecation time occurs after 20 minutes |
| d2 | M2 | The defecation time occurs after 15 minutes |
| d3 | M4 | The defecation time occurs after 10 minutes |
| d4 | M5 | The defecation time occurs after 5 minutes |
Optionally, the occurrence behavior of the target behavior corresponding to the second target object may be determined according to an amplitude threshold reached by the deformation amplitude generated by extrusion of the first target object by the second target object. By way of example, if the amplitude of deformation of the bladder by rectal compression reaches d1, it can be predicted that the bowel movement will take place after 20 minutes.
Further, the defecation time is predicted by setting a threshold value of the excrement accumulation amount, a relation table of the excrement accumulation amount M and the defecation time is established, the relation table is established by a calibration mode (for example, when the excrement accumulation amount reaches M, the predicted defecation time is after 10 minutes), the defecation time is judged by a table look-up mode, meanwhile, the threshold value M can be set, and when the defecation time is about to reach, the defecation time is sent out by a wireless unit. In this way, the user can be informed of the relevant preparation of the bowel movements, while the terminal can access the public data interface, recommend nearby public toilet locations and plan the best route for display in the terminal. By means of linkage with the terminal equipment, the application of the defecation time prediction result can be well realized, such as the emission of defecation alarm, the recommendation of the position of the accessory toilet, the matching of the optimal route and the like.
The method for predicting the behavior occurrence time is applied to electronic equipment, the electronic equipment comprises an ultrasonic device and a processing unit, the ultrasonic device transmits ultrasonic signals to a first target object, the processing unit calculates deformation amplitude of the first target object extruded by a second target object based on ultrasonic reflection signals received by the ultrasonic device, a plurality of configured amplitude thresholds are obtained, and the occurrence time of target behaviors corresponding to the second target object is predicted according to the amplitude thresholds reached by the deformation amplitude. The pre-judging result is sent in a threshold grading mode, so that a good prompting effect can be achieved.
Referring to fig. 11, a method for predicting behavior occurrence time provided in an embodiment of the present application is applied to an electronic device, where the electronic device includes an ultrasonic device and a processing unit, and the ultrasonic device is connected to the processing unit, and the method includes:
step S510: triggering the ultrasonic device to emit an ultrasonic signal to a first target object.
Step S520: and calculating the deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device.
Step S530: a plurality of configured amplitude thresholds is obtained.
Step S540: if the current amplitude threshold is a first threshold value in the amplitude thresholds and the deformation amplitude exceeds the first threshold value, predicting the occurrence time of the target behavior corresponding to the second target object as a first occurrence time, and triggering prompt information to prompt whether the occurrence time of the target behavior is known.
In one mode, the processing unit obtains the deformation amplitude of the first object extruded by the second object, and if the deformation amplitude of the first object extruded by the second object exceeds a set first amplitude threshold, the occurrence time of the target behavior corresponding to the second object is judged to be the occurrence time of the target behavior corresponding to the set first amplitude threshold. And simultaneously, sending prediction information to the equipment terminal so as to prompt the user about the occurrence time of the target behavior.
Step S550: and if feedback information representing the occurrence time of the known target behavior is not received, modifying the current amplitude threshold value to be a second threshold value in the amplitude threshold values, wherein the second threshold value is larger than the first threshold value.
As one way, if no feedback information is received that characterizes the time at which the user has known the occurrence of the target behavior, the processing unit will modify the current amplitude threshold to a second threshold of the set plurality of amplitude thresholds.
Alternatively, if feedback information indicating the occurrence time of the known target behavior is received, the user waits for a predetermined time and then performs a next prediction operation of the occurrence time of the target behavior.
Step S560: and after waiting for the first designated time, acquiring the deformation amplitude after waiting for the first designated time again, and if the acquired deformation amplitude exceeds the second threshold value, predicting the occurrence time of the target behavior corresponding to the second target object as a second occurrence time.
In one mode, after waiting for a certain time, the processing unit acquires deformation amplitude generated by extrusion of the second object received by the current first object after waiting for the specified time again, judges whether the current deformation amplitude exceeds a second threshold value in a plurality of threshold values, and if the current deformation amplitude exceeds the second threshold value, judges that the occurrence time of the target behavior is the occurrence time of the target behavior corresponding to the second threshold value.
Step S570: and if the deformation amplitude exceeds the maximum amplitude threshold value in the amplitude thresholds, continuously sending the predicted occurrence time of the target behavior corresponding to the second target object for a second designated time, and setting the current threshold value as the first threshold value.
As one way, if the obtained deformation amplitude of the current first object extruded by the second object exceeds the maximum amplitude threshold value of the set amplitude thresholds, the processing unit continuously sends the occurrence time of predicting the target behavior corresponding to the second object for a specified time to the user, sets the current threshold value as the first threshold value of the amplitude thresholds, and restarts the prediction process.
The method for predicting the behavior occurrence time is applied to electronic equipment, the electronic equipment comprises an ultrasonic device and a processing unit, the ultrasonic device transmits ultrasonic signals to a first target object, the processing unit calculates deformation amplitude of the first target object extruded by a second target object based on ultrasonic reflection signals received by the ultrasonic device, a plurality of configured amplitude thresholds are obtained, and the occurrence time of target behaviors corresponding to the second target object is predicted according to the amplitude thresholds reached by the deformation amplitude. The pre-judging result is sent in a threshold grading mode, so that a good prompting effect can be achieved.
Referring to fig. 12, an electronic device 600 for predicting behavior occurrence time according to an embodiment of the present application, the electronic device 600 includes:
The processing unit 620 is configured to trigger the ultrasonic device 610 to transmit an ultrasonic signal to a first target object and receive an ultrasonic reflected signal.
The processing unit 620 is configured to calculate a deformation amplitude of the first object extruded by the second object based on the ultrasonic reflection signal received by the ultrasonic device; and predicting the occurrence time of the target behavior corresponding to the second target object based on the deformation amplitude.
The processing unit 620 is further configured to calculate an echo time difference based on the received first echo signal and second echo signal; and calculating deformation amplitude of the first object extruded by the second object based on the echo time difference.
The processing unit 620 is further configured to obtain a plurality of first reflected signals obtained by the plurality of transducers respectively receiving first reflected signals reflected by the first target object, and obtain a plurality of second reflected signals obtained by the plurality of transducers respectively receiving second reflected signals reflected by the first target object; performing beam synthesis on the plurality of first reflected signals to obtain first echo signals, and performing beam synthesis on the plurality of second reflected signals to obtain second echo signals; acquiring envelope information of the first echo signal, and acquiring a characteristic point corresponding to the first echo signal based on the envelope information of the first echo signal; acquiring envelope information of the second echo signal, and acquiring a characteristic point corresponding to the second echo signal based on the envelope information of the second echo signal; and taking the difference value of the respective corresponding time of the characteristic point corresponding to the first echo signal and the characteristic point corresponding to the second echo signal as an echo time difference.
The processing unit 620 is further configured to perform beam synthesis on the plurality of first reflected signals in a weighted manner to obtain first echo signals, where echo path lengths of the plurality of first reflected signals are different, and in the weighted manner, a weighting coefficient of the first reflected signal that is longer corresponding to the echo path is smaller; and carrying out wave beam synthesis on the plurality of second reflected signals in a weighting mode to obtain second echo signals, wherein the echo path lengths of the plurality of second reflected signals are different, and in the weighting mode, the weighting coefficient of the second reflected signals with the longer corresponding echo paths is smaller.
The processing unit 620 is further configured to obtain a plurality of configured amplitude thresholds; and predicting the occurrence time of the target behavior corresponding to the second target object according to the amplitude threshold value reached by the deformation amplitude.
As shown in fig. 13, the ultrasonic device 610 includes a transmission control unit 612, a reception processing unit 614, and a plurality of transducers 616 connected to the transmission control unit and the reception processing unit, respectively.
The emission control unit 612 is configured to control the plurality of transducers to emit ultrasonic signals to the first target object by using a delayed emission mode, so that the plurality of ultrasonic signals emitted by the plurality of transducers reach the first target object at the same time. Wherein the ultrasonic transmission control unit 612 mainly comprises pulse production and pulse time sequence control, and ultrasonic receiving comprises signal amplification, digital-to-analog conversion and the like.
The plurality of transducers 616 function to convert electrical signals into ultrasonic waves for transmission, while converting returned ultrasonic waves into processable electrical signals; the implementation mode is generally to use piezoelectric ceramics with piezoelectric effect as a base material for encapsulation.
Referring to fig. 14, an electronic device 700 for predicting a behavior occurrence time according to an embodiment of the present application, where the electronic device 700 includes:
the power management unit 710 is configured to perform power input and voltage conversion, where the voltage conversion may be implemented by a voltage conversion chip such as LDO, DCDC, etc.
The wireless communication unit 720 is configured to upload data to the cloud, and a general implementation manner is through wireless protocols such as bluetooth low energy, zigBee, wifi, and the like.
The micro control processor 730 is mainly used for connecting the wireless communication unit 720, controlling the emission of ultrasonic waves, and processing the received signals, and the implementation manner can be realized by a micro processing controller based on ARM-M series cores, a Field Programmable Gate Array (FPGA) and the like.
The emission control unit 740 is configured to emit ultrasonic waves by using the transducer, and the implementation manner of the emission control unit can be set up by using a discrete electronic element, and meanwhile, the implementation manner of the emission control unit can also be realized by using a special integrated IC for controlling the ultrasonic transceiver.
The receiving control unit 750 is configured to receive the ultrasonic wave by using the transducer, and the implementation manner of the receiving control unit can be set up by using a discrete electronic element, and meanwhile, the receiving control unit can also be implemented by using a special integrated IC for controlling the receiving and transmitting of the ultrasonic wave.
It should be noted that, in the present application, the device embodiment and the foregoing method embodiment correspond to each other, and specific principles in the device embodiment may refer to the content in the foregoing method embodiment, which is not described herein again.
A processing unit of an electronic device provided in the present application will be described with reference to fig. 15.
The embodiment of the invention provides a processing unit of an electronic device for predicting behavior occurrence time, which comprises a processor and a memory, wherein at least one instruction, at least one section of program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by the processor to realize the method for predicting behavior occurrence time provided by the embodiment of the method.
The memory may be used to store software programs and modules that the processor executes to perform various functional applications and data processing by executing the software programs and modules stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for functions, and the like; the storage data area may store data created according to the use of the device, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory controller to provide access to the memory by the processor.
Fig. 15 is a block diagram of a hardware structure of a processing unit of an electronic device for predicting a behavior occurrence time according to an embodiment of the present invention. As shown in fig. 15, the processing unit 1100 may vary considerably in configuration or performance and may include one or more processors (ProcessingUnits, CPU) 1110 (the processor 1110 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA), a memory 1130 for storing data, one or more storage mediums 1120 (e.g., one or more mass storage devices) for storing applications 1123 or data 1122. Wherein the memory 1130 and the storage medium 1120 may be transitory or persistent storage. The program stored on the storage medium 1120 may include one or more modules, each of which may include a series of instruction operations in the electronic device. Still further, the processor 1110 may be configured to communicate with a storage medium 1120 and execute a series of instruction operations in the storage medium 1120 on the processing unit 1100. The processing unit 1100 can also include one or more power supplies 1160, one or more wired or wireless network interfaces 1150, one or more input/output interfaces 1140, and/or one or more operating systems 1121, such as WindowsServerTM, macOSXTM, unixTM, linuxTM, freeBSDTM, and the like.
The input-output interface 1140 may be used to receive or transmit data via a network. The network specific examples described above may include a wireless network provided by a communication provider of the processing unit 1100. In one example, the input/output interface 1140 includes a network adapter (NetworkInterfaceController, NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the input-output interface 1140 may be a radio frequency (RadioFrequency, RF) module for communicating wirelessly with the internet.
It will be appreciated by those skilled in the art that the structure shown in fig. 15 is merely illustrative, and does not limit the structure of the processing unit of the electronic device for predicting the behavior occurrence time. For example, the processing unit 1100 may also include more or fewer components than shown in fig. 15, or have a different configuration than shown in fig. 15.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the above-described embodiment of the action recognition method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here. Wherein, the computer readable storage medium is Read-only memory (ROM), random Access Memory (RAM), magnetic disk or optical disk, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
According to the method, the electronic equipment, the system and the storage medium for predicting the behavior occurrence time, firstly, an ultrasonic device transmits an ultrasonic signal to a first object, a processing unit calculates deformation amplitude of the first object extruded by a second object based on an ultrasonic reflection signal received by the ultrasonic device, and based on the deformation amplitude, the occurrence time of a target behavior corresponding to the second object is predicted. Therefore, the deformation amplitude of the first object extruded by the second object is measured through the ultrasonic ranging technology to predict the occurrence time of the target behavior corresponding to the second object, and the occurrence time of the target behavior can be predicted more accurately.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (11)
1. A method for predicting behavior occurrence time is characterized by being applied to electronic equipment, wherein the electronic equipment comprises an ultrasonic device and a processing unit, and the ultrasonic device is connected with the processing unit;
triggering the ultrasonic device to transmit an ultrasonic signal to a first target object, wherein an ultrasonic reflection signal received by the ultrasonic device comprises a first echo signal and a second echo signal;
determining deformation amplitude of the first object extruded by the second object based on the echo time difference obtained by calculation of the first echo signal and the second echo signal;
acquiring a plurality of configured amplitude thresholds, and determining a current amplitude threshold reached by the deformation amplitude; wherein a plurality of amplitude thresholds are set for the deformation amplitude, and different deformation amplitudes correspond to different amplitude thresholds;
if the current amplitude threshold is a first threshold value in the amplitude thresholds and the deformation amplitude exceeds the first threshold value, predicting the occurrence time of the target behavior corresponding to the second target object as a first occurrence time, and sending the first occurrence time to a device terminal so as to prompt a user of the occurrence time of the target behavior;
If feedback information representing the occurrence time of the known target behavior is not received, modifying the current amplitude threshold to be a second threshold in the amplitude thresholds; the second threshold is greater than the first threshold;
obtaining deformation amplitude after waiting for a first designated time, if the deformation amplitude exceeds the second threshold, predicting the occurrence time of the target behavior corresponding to the second target object as a second occurrence time, and sending the second occurrence time to the equipment terminal; the second occurrence time is less than the first occurrence time;
and if the deformation amplitude exceeds the maximum amplitude threshold value in the amplitude thresholds, setting the current threshold value as the first threshold value after lasting for a second designated time, and repeatedly executing the step of triggering the ultrasonic device to transmit an ultrasonic signal to a first target object.
2. The method of claim 1, wherein the ultrasonic device comprises a transmit control unit, a receive processing unit, and a plurality of transducers coupled to the transmit control unit and the receive processing unit, respectively, the ultrasonic device transmitting an ultrasonic signal to a first target, comprising:
Triggering the emission control unit to control the plurality of transducers to emit ultrasonic signals to the first target object in a delayed emission mode, so that the plurality of ultrasonic signals emitted by the plurality of transducers reach the first target object at the same time.
3. The method of claim 2, wherein the first echo signal is a signal reflected by a side of the first object near the electronic device, and the second echo signal is a signal reflected by a side of the first object far from the electronic device.
4. The method of claim 2, wherein the processing unit calculates an echo time difference based on the first echo signal and the second echo signal, comprising:
acquiring first reflection signals reflected by the first target object respectively received by the plurality of transducers to obtain a plurality of first reflection signals, and acquiring second reflection signals reflected by the first target object respectively received by the plurality of transducers to obtain a plurality of second reflection signals;
performing beam synthesis on the plurality of first reflected signals to obtain first echo signals, and performing beam synthesis on the plurality of second reflected signals to obtain second echo signals;
Acquiring envelope information of the first echo signal, and acquiring a characteristic point corresponding to the first echo signal based on the envelope information of the first echo signal;
acquiring envelope information of the second echo signal, and acquiring a characteristic point corresponding to the second echo signal based on the envelope information of the second echo signal;
and taking the difference value of the respective corresponding time of the characteristic point corresponding to the first echo signal and the characteristic point corresponding to the second echo signal as the echo time difference.
5. The method of claim 4, wherein beam forming the plurality of first reflected signals to obtain a first echo signal comprises:
carrying out wave beam synthesis on the plurality of first reflected signals in a weighting mode to obtain first echo signals, wherein the echo path lengths of the plurality of first reflected signals are different, and in the weighting mode, the weighting coefficient of the first reflected signals is smaller when the corresponding echo path is longer;
the performing beam forming on the plurality of second reflected signals to obtain a second echo signal, including:
and carrying out wave beam synthesis on the plurality of second reflected signals in a weighting mode to obtain second echo signals, wherein the echo path lengths of the plurality of second reflected signals are different, and in the weighting mode, the weighting coefficient of the second reflected signals with the longer corresponding echo paths is smaller.
6. The method according to claim 1, wherein the method further comprises:
if feedback information representing the occurrence time of the known target behavior is received, waiting for a third designated time, and then performing the next prediction operation of the occurrence time of the target behavior.
7. The method of any one of claims 1-6, wherein the first target is the bladder and the second target is the rectum.
8. An electronic device, comprising an ultrasonic device and a processing unit:
the processing unit is used for triggering the ultrasonic device to transmit an ultrasonic signal to a first target object, and an ultrasonic reflection signal received by the ultrasonic device comprises a first echo signal and a second echo signal; determining deformation amplitude of the first object extruded by the second object based on the echo time difference obtained by calculation of the first echo signal and the second echo signal;
the processing unit is used for acquiring a plurality of configured amplitude thresholds and determining a current amplitude threshold reached by the deformation amplitude; wherein a plurality of amplitude thresholds are set for the deformation amplitude, and different deformation amplitudes correspond to different amplitude thresholds; if the current amplitude threshold is a first threshold value in the amplitude thresholds and the deformation amplitude exceeds the first threshold value, predicting the occurrence time of the target behavior corresponding to the second target object as a first occurrence time, and sending the first occurrence time to a device terminal so as to prompt a user of the occurrence time of the target behavior; if feedback information representing the occurrence time of the known target behavior is not received, modifying the current amplitude threshold to be a second threshold in the amplitude thresholds; the second threshold is greater than the first threshold; obtaining deformation amplitude after waiting for a first designated time, if the deformation amplitude exceeds the second threshold, predicting the occurrence time of the target behavior corresponding to the second target object as a second occurrence time, and sending the second occurrence time to the equipment terminal; the second occurrence time is less than the first occurrence time; and if the deformation amplitude exceeds the maximum amplitude threshold value in the amplitude thresholds, setting the current threshold value as the first threshold value after lasting for a second designated time, and repeatedly executing the step of triggering the ultrasonic device to transmit an ultrasonic signal to a first target object.
9. The electronic device according to claim 8, the ultrasonic device comprising a transmission control unit, a reception processing unit, and a plurality of transducers respectively connected to the transmission control unit and the reception processing unit;
the processing unit is used for triggering the emission control unit to control the plurality of transducers to emit ultrasonic signals to the first target object in a delayed emission mode, so that the ultrasonic signals emitted by the plurality of transducers reach the first target object at the same time.
10. The electronic device of claim 9, the processing unit further configured to perform the method of any of claims 3-7.
11. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a program code, wherein the program code, when being executed by a processor, performs the method of any of claims 1-7.
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| AU591360B2 (en) * | 1986-11-13 | 1989-11-30 | National Aeronautics And Space Administration - Nasa | Ultrasonic quantification of a property internal to a living subject |
| GB2391625A (en) * | 2002-08-09 | 2004-02-11 | Diagnostic Ultrasound Europ B | Instantaneous ultrasonic echo measurement of bladder urine volume with a limited number of ultrasound beams |
| IL158379A0 (en) * | 2003-10-13 | 2004-05-12 | Volurine Israel Ltd | Non invasive bladder distension monitoring apparatus to prevent enuresis, and method of operation therefor |
| CN100450443C (en) * | 2004-12-15 | 2009-01-14 | 深圳迈瑞生物医疗电子股份有限公司 | Receiving method and its device based on double beam and synthetic aperture |
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| WO2016052747A1 (en) * | 2014-10-03 | 2016-04-07 | トリプル・ダブリュー・ジャパン株式会社 | Bowel movement prediction device and bowel movement prediction method |
| NL2013884B1 (en) * | 2014-11-27 | 2016-10-11 | Umc Utrecht Holding Bv | Wearable ultrasound device for signalling changes in human or animal body. |
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