Excreta detection method and apparatus

Abstract

An excreta detection method, which is applied to a detection device (120) comprising an emitting apparatus (121) and a receiving apparatus (122). The method comprises: invoking the emitting apparatus (121) to emit visible light (S201); and if the receiving apparatus (122) receives a reflected signal of the visible light, determining an output result on the basis of the intensity of the reflected signal of the visible light, wherein the output result comprises whether excreta is present (S202). Further provided is an excreta detection apparatus (70). Excreta can be detected on the basis of the intensity of a reflected signal of visible light that is obtained after visible light irradiation, such that a caregiver can know the excretion condition of a wearer in a timely manner.

Description

Excrement detection method and device

[0001] The present application claims priority to the Chinese patent application No. 2024108965711, filed on July 5, 2024, and entitled "Excrement detection method and device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the general technical field of data processing, in particular to an excrement detection method and device. BACKGROUND

[0003] For children, the elderly and other people without self-care ability, they need to be handled by nursing staff because they cannot handle excrement by themselves, so the nursing staff generally needs to wear nursing equipment such as paper diapers on them. In order for the nursing staff to replace and handle the nursing equipment in time, the nursing staff needs to know the excretion situation of the wearer in time. Therefore, how to determine whether the wearer has excretion behavior is a technical problem that needs to be solved in the field.

[0004] SUMMARY

[0005] The present application provides an excrement detection method and device, which can determine whether there is excretion behavior by the intensity of the visible light reflection signal obtained after the visible light irradiation to the excretion position.

[0006] In a first aspect, the present application provides an excrement detection method, which is applied to a detection device including a transmitting device and a receiving device, and the method includes:

[0007] calling the transmitting device to emit visible light;

[0008] if the receiving device receives the visible light reflection signal, determining an output result according to the intensity of the visible light reflection signal, and the output result includes whether there is excrement.

[0009] As can be seen, in the present application, the intensity of the visible light reflection signal obtained after the visible light irradiation can realize the detection of excrement, so that the nursing staff can know the excretion situation of the wearer in time.

[0010] In a feasible example, the detection device is installed on the nursing equipment, and before calling the transmitting device to emit visible light, the method further includes: performing initial reflection zero adjustment on the transmitting device and the receiving device according to the device corresponding to the target position in the nursing equipment, and the target position is the position irradiated by the visible light emitted by the transmitting device.

[0011] In the present application, the irradiation position of the visible light emitted by the transmitting device is used to perform initial reflection zero adjustment on the transmitting device and the receiving device, which facilitates the subsequent detection device to compare and analyze the detection result.

[0012] In a feasible example, the emitting device includes a plurality of sub-emitting devices, and the plurality of sub-emitting devices are respectively used to emit visible light of different colors. The method of calling the emitting device to emit visible light includes: calling at least one sub-emitting device in the plurality of sub-emitting devices to emit visible light multiple times in a corresponding emitting period of the emitting device, wherein there is a difference between the at least one sub-emitting device called each time.

[0013] In the present application, multiple colors of visible light can be obtained by calling at least one sub-emitting device in the plurality of sub-emitting devices to emit visible light multiple times, so as to improve the accuracy of determining the output result through the visible light reflection signal.

[0014] In a feasible example, determining the output result according to the intensity of the visible light reflection signal includes: determining a plurality of voltage signals according to the visible light reflection signals corresponding to the plurality of visible light emitted by the emitting device in an emitting period; and determining the output result according to the plurality of voltage signals.

[0015] In the present application, the plurality of voltage signals determined according to the visible light reflection signals corresponding to the plurality of visible light can improve the accuracy of determining the output result.

[0016] In a feasible example, before determining the output result according to the intensity of the plurality of voltage signals, the method further includes: obtaining a plurality of training data, each training data in the plurality of training data including historical voltage signal data, and information of a visible light color corresponding to the historical voltage signal data and whether there is excrement; performing initial model training according to the plurality of training data to obtain an excrement detection model after training is completed; and determining the output result according to the plurality of voltage signals includes: inputting the plurality of voltage signals and the visible light color corresponding to each voltage signal into the excrement detection model to obtain the output result.

[0017] In the present application, the output result can be determined by the plurality of voltage signals and the visible light color corresponding to each voltage signal, so as to improve the accuracy of the output result.

[0018] In a feasible example, the excretion includes feces and urine; the output result is determined according to the intensity of the plurality of voltage signals, including: calculating a weighted average of the plurality of voltage signals according to the weight value corresponding to each voltage signal in the plurality of voltage signals, to obtain a target voltage signal, the weight value corresponding to each voltage signal is determined according to the wavelength of the visible light corresponding to the voltage signal, the shorter the wavelength of the visible light corresponding to the voltage signal, the higher the weight value corresponding to the voltage signal; if it is determined that the target voltage signal is in the first voltage interval, it is determined that the output result is the presence of urine; if it is determined that the target voltage signal is in the second voltage interval, it is determined that the output result is the presence of feces, and the maximum value of the second voltage interval is less than the minimum value of the first voltage interval.

[0019] In the present application, the shorter the wavelength of the visible light corresponding to the voltage signal, the higher the weight value determined for the weighted average calculation, which can improve the accuracy of the output result.

[0020] In a feasible example, the output result also includes the color of the feces or urine, and the color of the feces or urine is determined according to the interval of the voltage signal corresponding to the visible light reflection signal, and the higher the color depth of the feces or urine, the lower the voltage of the feces or urine.

[0021] In the present application, different colors of feces or urine are determined according to different voltage signal intervals, which improves the intelligence of excretion detection.

[0022] In a second aspect, the present application provides an excretion detection device, which is applied to a detection equipment, the detection equipment includes a transmitting device and a receiving device, and the device includes:

[0023] The transmitting unit is configured to call the transmitting device to transmit visible light;

[0024] If the receiving device receives the visible light reflection signal, the processing unit is configured to determine the output result according to the intensity of the visible light reflection signal, and the output result includes whether there is excretion.

[0025] In a third aspect, the present application provides an electronic device, which includes a processor, a memory and a communication interface, the processor, the memory and the communication interface are connected to each other and complete communication work between each other, the memory stores executable program codes, the communication interface is configured to perform wireless communication, and the processor is configured to call the executable program codes stored in the memory to execute part or all of the steps described in the first aspect.

[0026] In a fourth aspect, the present application provides a computer readable storage medium, and the computer readable storage medium stores electronic data, and the electronic data is used to execute the electronic data to realize part or all of the steps described in the first aspect of the present application when the processor executes the electronic data.

[0027] In a fifth aspect, the present application provides a computer program product, wherein the computer program product includes a non-transitory computer readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps of the method described in the first aspect of the present application. The computer program product can be a software installation package. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Fig. 1 is a structural schematic diagram of a feces detection system provided by an embodiment of the present application;

[0030] Fig. 2 is a flow schematic diagram of a feces detection method provided by an embodiment of the present application;

[0031] Fig. 3 is a visible light signal transmitting circuit topology diagram provided by an embodiment of the present application;

[0032] Fig. 4 is a visible light signal receiving circuit topology diagram provided by an embodiment of the present application;

[0033] Fig. 5 is an application scenario diagram of a feces detection device provided by an embodiment of the present application;

[0034] Fig. 6 is another application scenario diagram of a feces detection device provided by an embodiment of the present application;

[0035] Fig. 7 is a functional unit composition block diagram of a feces detection device provided by an embodiment of the present application;

[0036] Fig. 8 is a functional unit composition block diagram of another feces detection device provided by an embodiment of the present application;

[0037] Fig. 9 is a structural block diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] The terms "first", "second", and the like in the description and in the claims of the present application and above drawings are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. The terms "comprises", "comprising", "includes", "including" and the like are to be construed open- ended, meaning that they include the listed steps, processes, systems, products or devices but not excluding other steps, processes, systems, products or devices. For example, a process, method, system, product or device that comprises a list of steps is not necessarily limited to those steps only but can include other steps not expressly listed or inherent to such process, method, system, product or device.

[0040] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be combined with any of the other embodiments.

[0041] Referring to FIG. 1, which is a structural schematic diagram of a feces detection system according to an embodiment of the present application, as shown in FIG. 1, the feces detection system 100 comprises a nursing device 110, a detection device 120, an alarm device 130 and a terminal device 140, wherein the detection device 120 comprises a transmitting device 121 and a receiving device 122.

[0042] The detection device 120 can be installed on the nursing device 110, which can be a wearable nursing device such as a diaper, and the detection device 120 comprises a transmitting device 121 for transmitting visible light, and a receiving device 122 for receiving the visible light reflection signal after the visible light is reflected by the nursing device 110. The detection device 120 can also be connected to the alarm device 130 or the terminal device 140.

[0043] The alarm device 130 is used for receiving the control signal of the detection device 120. Generally, when the detection device 120 detects that the wearer corresponding to the nursing device 110 has a feces excretion behavior, the detection device 120 will send a control signal to the alarm device 130, so that the alarm device 130 can alarm, or the detection device 120 can also send detection information to the terminal device 140 alone or simultaneously. Similarly, the alarm device 130 can also be connected to the terminal device 140, and when the alarm device 130 alarms, the alarm device 130 can also send alarm information to the terminal device 140.

[0044] The detection device 120 can also be indirectly connected with the terminal device 140 through a cloud server, that is, the detection device 120 is connected with the cloud server, and detection information is uploaded to the cloud server. The cloud server can forward the detection information of the detection device 120 to the terminal device 140 after receiving the detection information, or the terminal device 140 can view the detection information of the detection device 120 on the cloud server. The terminal device 140 can be a desktop computer, a notebook computer, a tablet computer, a smart phone, or the like.

[0045] Specifically, the detection device 120 calls the emitting device 121 to emit visible light. If the receiving device 122 in the detection device 120 receives a visible light reflection signal, an output result is determined according to the visible light reflection signal. The output result includes whether there is excrement. In this way, the detection of excrement is realized by the reflection signal intensity obtained through visible light irradiation. The detection result is not easily affected by other factors such as farting, thereby improving the accuracy of detecting excrement.

[0046] Based on this, the embodiment of the present application provides an excrement detection method. The embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0047] Please refer to FIG. 2, which is a flowchart of an excrement detection method provided by an embodiment of the present application. The method is applied to the detection device described above. As shown in FIG. 2, the method includes the following steps:

[0048] Step S201: calling an emitting device to emit visible light.

[0049] The visible light can be one of RGB three-color light. The wavelength of the visible light is shorter than that of infrared light, and the penetration is weaker, and the reflection effect is stronger. The intensity of the reflection signal obtained after irradiation by visible light is greater than that obtained after irradiation by infrared light. Moreover, the emitting device can be installed in a nursing device, and the nursing device can be a wearable device, which can be in contact with the human skin. The influence of visible light irradiation on the human skin is lower than that of infrared irradiation on the human skin.

[0050] Specifically, in a feasible embodiment, the detection device is installed in a nursing device. Before calling the emitting device to emit visible light, the method further includes: performing initial reflection zero adjustment on the emitting device and the receiving device according to a device corresponding to a target position in the nursing device. The target position is the position irradiated by the visible light emitted by the emitting device.

[0051] The care device can be a wearable device, such as a diaper, underpants, etc. Before the emission device emits visible light, the emission device and the receiving device need to be initially reflected and zeroed at the position to be irradiated. For example, the receiving and emitting chip windows can be covered with the diaper corresponding to the irradiated position, so that the corresponding processors (single-chip microcomputers) of the emission device and the receiving device are initially reflected and zeroed.

[0052] In this application, the irradiation position of the visible light emitted by the emission device is used to initially reflect and zero the emission device and the receiving device, which facilitates subsequent detection of the detection results by the detection device.

[0053] Specifically, in a feasible embodiment, the emission device includes a plurality of sub-emission devices, and the plurality of sub-emission devices are respectively used to emit visible light of different colors. The emission device emits visible light by calling the emission device, which includes: in a corresponding emission period of the emission device, the plurality of sub-emission devices are called to emit visible light at least once, and there is a difference between the at least one sub-emission device called each time.

[0054] Each time the sub-emission device is called, it can be single or multiple, and there is a difference between the sub-emission devices called each time. When multiple sub-emission devices are called, there can be a case where some sub-emission devices are the same between the multiple sub-emission devices called, but there cannot be a case where all sub-emission devices are the same between the multiple sub-emission devices called. Since each sub-emission device is used to emit visible light of different colors, the simultaneous calling of two or more sub-emission devices to emit visible light at a time will form visible light of a new color. Different colors of visible light mean different wavelengths of visible light, and the reflection intensity of the corresponding visible light will also be different. Calling at least one sub-emission device in the plurality of sub-emission devices to emit visible light multiple times can form visible light of more colors than the number of sub-emission devices. It can be understood that the plurality described in this application refers to two or more.

[0055] For example, if there are three sub-emission devices, including sub-emission device 1, sub-emission device 2, and sub-emission device 3, and the sub-emission device 1, sub-emission device 2, and sub-emission device 3 emit red, blue, and green visible light, respectively. Then, calling at least one sub-emission device in the three sub-emission devices to emit visible light multiple times can have seven emission modes. They are sub-emission device 1, sub-emission device 2, sub-emission device 3, sub-emission device 1 and sub-emission device 2 combined, sub-emission device 1 and sub-emission device 3 combined, sub-emission device 2 and sub-emission device 3 combined, and sub-emission device 1, sub-emission device 2, and sub-emission device 3 combined. In this way, red, blue, green, purple (red and blue), yellow (red and green), cyan (blue and green), and white (red, green, and blue) visible light can be obtained.

[0056] In the present application, by calling at least one of the plurality of sub-transmission devices to emit visible light multiple times, visible light of multiple colors can be obtained, thereby improving the accuracy of determining the output result through the visible light reflection signal.

[0057] The circuit corresponding to the transmission device of the present application will be described in detail below with reference to FIG. 3:

[0058] Exemplarily, refer to FIG. 3, which is a visible light signal transmission circuit topology provided by an embodiment of the present application, as shown in FIG. 3, including capacitor C1, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, light-emitting diode D1, light-emitting diode D2, light-emitting diode D3, transistor Q1, transistor Q2, and transistor Q3. The first port of capacitor C1 is connected to ground, the second port of capacitor C1 is connected to power input end 304, the first port of resistor R1, the first port of resistor R2, and the first port of resistor R3 respectively, the second port of resistor R1 is connected to the first port of light-emitting diode D1, the second port of light-emitting diode D1 is connected to the collector of transistor Q1, the base of transistor Q1 is connected to the second port of resistor R4, the emitter of transistor Q1 is connected to ground, and the first port of resistor R4 is connected to the first interface 301 of the single-chip microcomputer; the second port of resistor R2 is connected to the first port of light-emitting diode D2, the second port of light-emitting diode D2 is connected to the collector of transistor Q2, the base of transistor Q2 is connected to the second port of resistor R5, the emitter of transistor Q2 is connected to ground, and the first port of resistor R5 is connected to the second interface 302 of the single-chip microcomputer; the second port of resistor R3 is connected to the first port of light-emitting diode D3, the second port of light-emitting diode D3 is connected to the collector of transistor Q3, the base of transistor Q3 is connected to the second port of resistor R6, the emitter of transistor Q3 is connected to ground, and the first port of resistor R6 is connected to the third interface 303 of the single-chip microcomputer.

[0059] It can be understood that light-emitting diode D1, light-emitting diode D2, and light-emitting diode D3 can be used to emit red, blue, and green visible light respectively, and there is a single-chip microcomputer interface on the circuit corresponding to each light-emitting diode, which means that each light-emitting diode is controlled to emit light by the single-chip microcomputer.

[0060] In step S202, if the receiving device receives the visible light reflection signal, the output result is determined according to the intensity of the visible light reflection signal, and the output result includes whether there is excrement.

[0061] In addition to whether there is excrement, the output result can also include whether it is a stool or a urine. When the output result includes the presence of excrement, other ways of warning or prompting can also be used.

[0062] The current step is described in detail below.

[0063] Specifically, in a feasible embodiment, the output result is determined according to the intensity of the visible light reflection signal, including: determining a plurality of voltage signals according to the visible light reflection signals corresponding to a plurality of visible lights emitted by the emitting device in an emission period; and determining the output result according to the plurality of voltage signals.

[0064] Among them, after the receiving device receives the visible light reflection signal, it mainly determines the voltage signal of the visible light reflection signal, and finally determines the output result according to the voltage signal. Because the emitting device includes a plurality of sub-emitting devices, a plurality of visible lights of different colors will be emitted by the plurality of sub-emitting devices in an emission period. Because the wavelengths corresponding to visible lights of different colors are different, and the wavelength difference corresponding to visible lights of different colors is also large, which means that the intensity of the visible light reflection signal corresponding to visible lights of different colors will also be different. By determining the output result according to the plurality of voltage signals corresponding to the plurality of visible light reflection signals, the accuracy of the determined output result can be higher.

[0065] In this application, the output result is determined by the plurality of voltage signals determined by the plurality of visible light reflection signals corresponding to the plurality of visible lights, which can improve the accuracy of the determined output result.

[0066] The visible light signal receiving circuit corresponding to the receiving device is described in detail below with reference to FIG. 4:

[0067] Exemplarily, please refer to FIG. 4, which is a visible light signal receiving circuit topology provided by an embodiment of the present application, as shown in FIG. 4, including capacitors C2, C3, C4, resistors R7, R8 and receiving diode D4, the first port of capacitor C2 is connected with the fourth interface 401 of the single-chip microcomputer, the first port of resistor R7 and the first port of capacitor C3, the second port of capacitor C2 and the second port of resistor R7 are both grounded, the second port of capacitor C3 is connected with the first port of resistor R8 and the first port of receiving diode D4, the second port of resistor R8 is grounded, the second port of receiving diode D4 is connected with the fifth interface 402 of the single-chip microcomputer and the first port of capacitor C4, the second port of capacitor C4 is grounded. Receiving diode D4 is used for receiving visible light reflection signal, the single-chip microcomputer connects the circuit through the fourth interface 401 of the single-chip microcomputer, which is used for controlling receiving diode D4 to receive visible light reflection signal, and outputs the visible light reflection signal to the single-chip microcomputer through the fifth interface 402 of the single-chip microcomputer, and finally determines the output result according to the visible light reflection signal by the single-chip microcomputer.

[0068] The determination of the output result according to the plurality of voltage signals is described in detail below:

[0069] In a feasible embodiment, before determining the output result according to the intensity of the plurality of voltage signals, the method further comprises: obtaining a plurality of training data, each of the plurality of training data comprising historical voltage signal data and information of a visible light color corresponding to the historical voltage signal data and whether there is excrement; performing initial model training according to the plurality of training data to obtain an excrement detection model after training; and determining the output result according to the plurality of voltage signals, comprising: inputting the plurality of voltage signals and the visible light color corresponding to each voltage signal into the excrement detection model to obtain the output result.

[0070] Since different colors of visible light correspond to different wavelengths, the intensity of the visible light reflection signals obtained after irradiation of the same irradiated object based on different colors of visible light will be different, and thus the obtained voltage signals will also be different. Therefore, determining the output result according to the plurality of voltage signals is not only to compare the plurality of voltage signals with a fixed voltage signal to obtain the output result, but also to comprehensively analyze according to the visible light color corresponding to each voltage signal.

[0071] Therefore, when obtaining the training data, in addition to the historical voltage signal data and the information of whether there is excrement, the visible light color corresponding to each historical voltage signal data also needs to be obtained. When performing model training, the influence of the visible light color on the output result is also considered. The information of whether there is excrement can include information of whether there is feces or urine, and the input information of the excrement detection model can include single or multiple, and the output information is a single output result. Finally, the plurality of voltage signals and the visible light color corresponding to each voltage signal are input into the excrement detection model after training to obtain the output result. The output result includes whether there is excrement, or further includes whether there is feces or urine.

[0072] It can be understood that the output result should correspond to the information of whether there is excrement in the training data during training. When the information of whether there is excrement in the training data includes information of whether there is feces or urine, the final output result of the model should also include information of whether there is feces or urine.

[0073] In this application, the output result is determined by the plurality of voltage signals and the visible light color corresponding to each voltage signal, which can improve the accuracy of the output result.

[0074] In another possible implementation, the excretion includes feces and urine; the output result is determined according to the intensity of the plurality of voltage signals, including: performing weighted average calculation on the plurality of voltage signals according to the weight value corresponding to each voltage signal in the plurality of voltage signals, to obtain a target voltage signal, the weight value corresponding to each voltage signal being determined according to the wavelength of the visible light corresponding to the voltage signal, the shorter the wavelength of the visible light corresponding to the voltage signal, the higher the weight value corresponding to the voltage signal; if it is determined that the target voltage signal is in the first voltage interval, it is determined that the output result is the presence of urine; if it is determined that the target voltage signal is in the second voltage interval, it is determined that the output result is the presence of feces, the maximum value of the second voltage interval being less than the minimum value of the first voltage interval.

[0075] Similarly, because the plurality of voltage signals correspond to different colors of visible light, the plurality of voltage signals have different sizes, and the output result cannot be determined by a fixed standard. Therefore, in addition to determining the output result according to the excretion detection model, the plurality of voltage signals can be subjected to weighted average calculation to obtain a target voltage signal, and the output result is ultimately determined according to the target voltage signal. It can be understood that because the shorter the wavelength of visible light, the stronger the reflection ability of the corresponding visible light, and the higher the intensity of the visible light reflection signal, the voltage signal determined accordingly will also be larger, and if there is excretion at the irradiation position, the intensity of the visible light reflection signal will change more greatly, and the corresponding sensitivity will be higher. Therefore, when performing weighted average calculation, the weight value of the voltage signal is determined according to the size of the wavelength of the visible light corresponding to the voltage signal, and the shorter the wavelength of the visible light corresponding to the voltage signal, the higher the weight value of the voltage signal.

[0076] Because the components in urine mainly include water, inorganic salt, electrolyte, etc., when the person wearing the nursing device excretes urine, the urine will soak inside the nursing device or stain the surface of the nursing device, at this time the urine will absorb part of the visible light, thereby reducing the intensity of the visible light reflection signal, and further reducing the determined voltage signal. Therefore, the maximum value in the first voltage interval should be less than the value of the voltage signal obtained after irradiation by visible light under normal circumstances. The composition of feces is more complex than that of urine, and feces includes undigested food residues, bacteria, water, electrolytes, and a small amount of metabolic waste, etc., and its light absorption and scattering characteristics are more complex. Compared with urine, feces has more significant absorption in the visible light range. Therefore, if it is determined that the target voltage signal is in the first voltage interval, it is determined that the output result is the presence of urine; if it is determined that the target voltage signal is in the second voltage interval, it is determined that the output result is feces, and the maximum value of the second voltage interval is less than the minimum value of the first voltage interval. The first voltage interval and the second voltage interval can be determined according to historical data training or according to empirical values.

[0077] In the present application, the shorter the wavelength of the visible light corresponding to the voltage signal, the higher the weight value in the weighted average value calculation, which can improve the accuracy of the output result.

[0078] In one possible embodiment, the output result further includes the color of the stool or urine, and the color of the stool or urine is determined according to the interval of the voltage signal corresponding to the visible light reflection signal, and the higher the color depth of the stool or urine, the lower the voltage of the stool or urine.

[0079] In one possible embodiment, the output result further includes the color of the stool or urine, and the color of the stool or urine is determined according to the interval of the voltage signal corresponding to the visible light reflection signal, and the higher the color depth of the stool or urine, the lower the voltage of the stool or urine.

[0080] It can be understood that the color of the stool or urine can be combined with the above excretion detection model and the determination of the output result according to the target voltage signal. That is, when training the excretion detection model, the color of the stool or urine is added to the training data, so that the output result can also include the color of the stool or urine. And the color of the stool or urine is determined according to the different voltage intervals.

[0081] In the present application, different colors of stool or urine are determined according to different voltage signal intervals, which improves the intelligence of excretion detection.

[0082] The application scenario of the excretion detection device of the present application will be described below with reference to FIG. 5.

[0083] Exemplarily, please refer to FIG. 5, which is an application scenario diagram of an excretion detection device provided by an embodiment of the present application, as shown in FIG. 5, which includes a side view of a nursing device 110, which is a wearable nursing device (paper diaper). As shown in FIG. 5, the detection device 120 is installed at the rear side of the nursing device 110, and the visible light emission direction of the detection device 120 is the arrow direction shown in FIG. 5. When the wearer wears the nursing device 110, if the excretion behavior occurs, it can be detected by the detection device 120.

[0084] In another possible embodiment, the detection device can include multiple detection devices, and each detection device is installed at a different position on the nursing device, so that each detection device in the multiple detection devices is used for detecting a different position on the nursing device.

[0085] This is because when a person wears the care device, there may be twisting or other issues that make it difficult to accurately detect excretion behavior with a single detection location. Using multiple detection devices to detect different locations can improve the accuracy of excrement detection when applied to the care device. Furthermore, when using single or multiple detection devices, the skin exposure should be recorded to avoid relying solely on visible light reflection signals obtained after light shines on the skin to determine the presence of excrement.

[0086] Furthermore, if at least one of the multiple detection devices detects the presence of feces or its color, an alarm and other instructions can be issued via the alarm device. If a single detection device detects the presence of urine or its color, only further instructions (such as sending the detection information to the caregiver's terminal) are needed; no alarm is required. This is because a single detection device detecting urine may only indicate a small amount of leakage or other situations that do not warrant immediate diaper changes. If two or more detection devices detect the presence of urine or its color, an alarm and other instructions can be issued via the alarm device.

[0087] For example, please refer to Figure 6, which is an application scenario diagram of another excrement detection device provided in the embodiment of this application. As shown in Figure 6, in the diaper, visible light is emitted, and after the visible light shines on urine and feces, the reflected signal of the visible light is received. The received visible light emission signal becomes a voltage signal, which is processed by the monitoring host. Specifically, it is filtered and amplified. Then, the voltage signal is input to the microcontroller, which analyzes and processes it to determine whether there is urine or feces in the diaper. If urine or feces are present, an alarm and indication are triggered, and the detection information is sent to the terminal device of the caregiver through the cloud server.

[0088] Furthermore, in the case of a single detection device, visible light, due to its shorter wavelength, has better reflection than infrared light, making it more suitable for detecting excrement through reflected signals. The transmitting and receiving devices in the detection device can be integrated and installed at the back of the diaper, as shown in Figure 5, enabling detection of the wearer's excretion behavior. However, for urination, if the wearer only experiences low-volume leakage or other situations that do not require immediate diaper changing, it is difficult to detect with a single detection device.

[0089] Therefore, in another possible embodiment, the detection device further comprises an infrared ray emitting device and an infrared ray receiving device, the infrared ray emitting device can also be integrated with the emitting device and the receiving device in the detection device, the infrared ray receiving device is installed on the outside of the nursing device corresponding to the irradiation position of the infrared ray emitting device, and the irradiation position of the infrared ray emitting device can correspond to the urination position of the wearer when wearing the nursing device. When the presence of urination is detected through the emission and reception of visible light by the emitting device and the receiving device in the detection device, infrared rays can be emitted by the infrared ray emitting device, and the infrared rays can be received by the infrared ray receiving device, and the amount of urination can be determined according to the signal strength of the infrared rays received by the infrared ray receiving device. When the voltage corresponding to the received infrared ray signal is lower than the preset voltage value, it is determined that the amount of urination is large; when the voltage corresponding to the received infrared ray signal is not lower than the preset voltage value, it is determined that the amount of urination is small.

[0090] It can be understood that when the amount of urination is large, the nursing staff can be notified to replace the diaper, and when the amount of urination is small, the nursing staff can only be reminded, but does not need to be notified to replace the diaper. The reason why the amount of urination is measured by infrared rays is that the penetration ability of infrared rays is stronger than that of visible light, and the urination will be dispersed after being soaked into the diaper, and it is difficult to determine the amount of urination through the visible light reflection signal, but the degree of energy attenuation of the infrared rays after penetrating the diaper can determine the degree of soaking of the urination into the diaper, so as to determine the amount of urination.

[0091] As can be seen, in the embodiment of the present application, the intensity of the visible light reflection signal obtained after visible light irradiation can realize the detection of the excretion, so that the nursing staff can timely know the excretion condition of the wearer.

[0092] As consistent with the above-mentioned embodiments, please refer to FIG. 7, which is a functional unit composition block diagram of an excretion detection device provided by an embodiment of the present application. The excretion detection device is the detection device or a part of the detection device, as shown in FIG. 7, the excretion detection device 70 comprises:

[0093] The emitting unit 701 is configured to call the emitting device to emit visible light.

[0094] If the receiving device receives the visible light reflection signal, the processing unit 702 is configured to determine the output result according to the intensity of the visible light reflection signal, and the output result comprises whether there is excretion.

[0095] In an implementable embodiment, the detection device is installed on a care device, and the processing unit 702 is further configured to perform initial reflection zeroing on the emitting device and the receiving device according to a device corresponding to a target position in the care device before the emitting unit 701 calls the emitting device to emit the visible light, the target position being a position irradiated by the visible light emitted by the emitting device.

[0096] In an implementable embodiment, the emitting device includes a plurality of sub-emitting devices, and the plurality of sub-emitting devices are respectively configured to emit visible light of different colors. In the aspect of calling the emitting device to emit the visible light, the emitting unit 701 is specifically configured to call at least one sub-emitting device of the plurality of sub-emitting devices to emit the visible light multiple times in a corresponding emitting period of the emitting device, and there is a difference between the at least one sub-emitting device called each time.

[0097] In an implementable embodiment, in the aspect of determining the output result according to the intensity of the visible light reflection signal, the processing unit 702 is specifically configured to determine a plurality of voltage signals according to visible light reflection signals corresponding to a plurality of visible lights emitted by the emitting device in an emitting period, and determine the output result according to the plurality of voltage signals.

[0098] In an implementable embodiment, the processing unit 702 is further configured to obtain a plurality of training data before determining the output result according to the intensity of the plurality of voltage signals, each training data of the plurality of training data including historical voltage signal data, and information of a visible light color corresponding to the historical voltage signal data and whether there is excrement; perform initial model training according to the plurality of training data to obtain an excrement detection model after training; and in the aspect of determining the output result according to the plurality of voltage signals, the processing unit 702 is specifically configured to input the plurality of voltage signals and a visible light color corresponding to each voltage signal into the excrement detection model to obtain the output result.

[0099] In an implementable embodiment, the excrement includes feces and urine; and in the aspect of determining the output result according to the intensity of the plurality of voltage signals, the processing unit 702 is specifically configured to perform weighted average calculation on the plurality of voltage signals according to a weight value corresponding to each voltage signal of the plurality of voltage signals to obtain a target voltage signal, the weight value corresponding to each voltage signal being determined according to a wavelength of a visible light corresponding to the voltage signal, and the shorter the wavelength of the visible light corresponding to the voltage signal, the higher the weight value corresponding to the voltage signal; if it is determined that the target voltage signal is in a first voltage interval, it is determined that the output result is that there is urine; and if it is determined that the target voltage signal is in a second voltage interval, it is determined that the output result is that there is feces, a maximum value of the second voltage interval being less than a minimum value of the first voltage interval.

[0100] In a feasible embodiment, the output result further comprises the color of the stool or urine, the color of the stool or urine is determined according to the interval of the voltage signal corresponding to the visible light reflection signal, and the higher the color depth of the stool or urine is, the lower the voltage of the stool or urine is.

[0101] It can be understood that, since the method embodiments and the device embodiments are different presentation forms of the same technical concept, the content of the method embodiments part in the present application should be synchronously adapted to the device embodiments part, which will not be repeated here.

[0102] In the case of using integrated units, as shown in FIG. 8, FIG. 8 is a functional unit composition block diagram of another excrement detection device 70 provided by an embodiment of the present application. In FIG. 8, the excrement detection device 70 comprises a processing module 812 and a communication module 811. The processing module 812 is configured to control and manage the actions of the excrement detection device 70, for example, the steps of the transmitting unit 701 and the processing unit 702, and / or to perform other processes of the technology described herein. The communication module 811 is configured to support the interaction between the excrement detection device 70 and other devices. As shown in FIG. 8, the excrement detection device 70 can further comprise a storage module 813, which is configured to store the program code and data of the excrement detection device 70.

[0103] The processing module 812 can be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in combination with the disclosure. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, combinations of DSP and microprocessor, etc. The communication module 811 can be a transceiver, RF circuit or communication interface, etc. The storage module 813 can be a memory.

[0104] All related content of each scene involved in the above method embodiments can be cited to the function description of the corresponding function module, which will not be repeated here. The above excrement detection device 70 can execute the excrement detection method shown in FIG. 2.

[0105] The above-described embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, the above-described embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions according to the embodiments of the present application are wholly or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center through a wired or wireless manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, or the like including one or more available medium collections. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state disk.

[0106] FIG. 9 is a structural block diagram of an electronic device according to an embodiment of the present application. As shown in FIG. 9, the electronic device 900 can include one or more of the following components: a processor 901, a memory 902, and a communication interface 903, which are connected to each other and perform communication work with each other, wherein the memory 902 can store one or more computer programs, and the one or more computer programs can be configured to be executed by the one or more processors 901 to implement the method described in the above embodiments.

[0107] The processor 901 can include one or more processing cores. The processor 901 connects various parts within the entire electronic device 900 with various interfaces and lines, performs various functions of the electronic device 900 and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 902, and calling data stored in the memory 902. Optionally, the processor 901 can be implemented in at least one of a hardware form of a digital signal processing (DSP), a field-programmable gate array (FPGA), a programmable logic array (PLA). The processor 901 can integrate a combination of one or several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. It can be understood that the above-mentioned modem can also not be integrated into the processor 901, but can be implemented by a separate communication chip.

[0108] The memory 902 can include a random access memory (RAM) and can also include a read-only memory (ROM). The memory 902 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 902 can include a program storage area and a data storage area, wherein the program storage area can store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-mentioned various method embodiments, etc. The data storage area can also store data created by the electronic device 900 in use, etc.

[0109] It can be understood that the electronic device 900 can include more or fewer structural elements than those in the above structural block diagram, for example, a power module, a physical key, a WiFi (Wireless Fidelity) module, a speaker, a Bluetooth module, a sensor, etc., which are not limited herein.

[0110] The above-mentioned electronic device 900 can be a detection device or a part of a detection device.

[0111] The embodiments of the present application provide a computer readable storage medium, wherein the computer readable storage medium stores program data, and the program data, when executed by a processor, is used to execute part or all steps of any one of the excretion detection methods described in the above method embodiments.

[0112] The embodiment of the present application further provides a computer program product, which comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps of any of the excrement detection methods described in the above method embodiments. The computer program product can be a software installation package.

[0113] It should be noted that, for any of the above excrement detection method embodiments, in order to simply describe, they are all described as a series of action combinations, but those skilled in the art should know that the present application is not limited to the action sequence described, because according to the present application, some steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily necessary for the present application.

[0114] Although the present application is described herein in conjunction with various embodiments, other variations of the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from an inspection of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and the indefinite article "a" or "an" does not exclude a plurality. The mere fact that different claims depend on a same independent claim does not indicate that the claimed combinations cannot be used to advantage.

[0115] Those of ordinary skill in the art can understand that all or part of the steps in any of the above excrement detection method embodiments can be completed by programs instructing relevant hardware, and the programs can be stored in a computer-readable memory, which can include a flash disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0116] The above describes the embodiments of the present application in detail, and the principles and implementation manners of the excrement detection method and device of the present application are described by applying specific examples; the above embodiment descriptions are only used to help understand the method of the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the excrement detection method and device of the present application, the specific implementation manner and application range will be changed, and in view of the above, the content of the specification should not be understood as a limitation of the present application.

[0117] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.

[0118] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks.

[0119] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.

[0120] It is understood that any product of the processes described by the flowcharts controlled or configured to perform the method embodiments of the excrement detection method of the present application, such as the terminal and computer program product of the flowcharts described above, all belong to the scope of the related products described in the present application.

[0121] Obviously, those skilled in the art can make various modifications and variations to the excrement detection method and device provided by the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A feces detection method characterized by, The method is applied to a detection device, the detection device comprising a transmitting device and a receiving device, and the method comprising: calling the transmitting device to emit visible light; if the receiving device receives a visible light reflection signal, determining an output result according to the intensity of the visible light reflection signal, the output result comprising whether there is excrement.

2. The method of claim 1, wherein, The transmitting device comprises a plurality of sub-transmitting devices, each of which is used to emit visible light of different colors, and the calling of the transmitting device to emit visible light comprises: in a corresponding emission period of the transmitting device, calling at least one sub-transmitting device of the plurality of sub-transmitting devices to emit visible light multiple times, wherein there is a difference between the at least one sub-transmitting device called each time.

3. The method of claim 2, wherein, The determination of the output result according to the intensity of the visible light reflection signal comprises: determining a plurality of voltage signals according to the visible light reflection signals corresponding to the plurality of visible light emitted by the transmitting device in one emission period; determining the output result according to the plurality of voltage signals.

4. The method of claim 3, wherein, Before determining the output result according to the intensity of the plurality of voltage signals, the method further comprises: obtaining a plurality of training data, each of which comprises historical voltage signal data, and information about the color of the corresponding visible light and whether there is excrement; performing initial model training according to the plurality of training data to obtain an excrement detection model after training is completed; The determination of the output result according to the plurality of voltage signals comprises: inputting the plurality of voltage signals and the color of the corresponding visible light of each voltage signal into the excrement detection model to obtain the output result.

5. The method of claim 3, wherein, The excrement comprises feces and urine, and the determination of the output result according to the intensity of the plurality of voltage signals comprises: performing weighted average calculation on the plurality of voltage signals according to the weight corresponding to each voltage signal in the plurality of voltage signals to obtain a target voltage signal, the weight corresponding to each voltage signal being determined according to the wavelength of the corresponding visible light, and the shorter the wavelength of the corresponding visible light, the higher the weight corresponding to the voltage signal; if it is determined that the target voltage signal is in a first voltage interval, it is determined that the output result is urine; if it is determined that the target voltage signal is in a second voltage interval, it is determined that the output result is feces, and the maximum value of the second voltage interval is less than the minimum value of the first voltage interval.

6. The method according to any one of claims 3-5, characterized in that, The output result further comprises the color of the feces or urine, which is determined according to the interval of the voltage signal corresponding to the visible light reflection signal, and the higher the color depth of the feces or urine, the lower the voltage of the feces or urine.

7. The method of claim 1, wherein, The detection device is installed on a nursing device, and before calling the transmitting device to emit visible light, the method further comprises: performing initial reflection zeroing on the transmitting device and the receiving device according to the device corresponding to a target position in the nursing device, the target position being the position irradiated by the visible light emitted by the transmitting device.

8. A feces detection device characterized by comprising: The device is applied to a detection device, the detection device comprising a transmitting device and a receiving device, and the method comprising: a transmitting unit configured to invoke the transmitting device to transmit visible light; if the receiving device receives a visible light reflection signal, a processing unit configured to determine an output result according to an intensity of the visible light reflection signal, the output result including whether there is excrement.

9. An electronic device, comprising: The device comprises: a processor, a memory, and a communication interface, which are connected to each other and complete communication work with each other; the memory stores executable program codes, and the communication interface is configured to perform wireless communication; the processor is configured to call the executable program codes stored in the memory to execute the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, A computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-7. A computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-7.

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