CN110702627A - Built-in fecal occult blood detection device and method thereof - Google Patents
Built-in fecal occult blood detection device and method thereof Download PDFInfo
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Abstract
The invention discloses a built-in type excrement occult blood detection device and a method thereof, and the device comprises an occult blood detection module for detecting whether an excrement aqueous solution in a closestool contains an occult blood signal or not, wherein the occult blood detection module is electrically connected with an intelligent closestool, and the intelligent closestool can be fixedly arranged on the closestool in an openable or closable manner; the closestool is provided with a discharge pipe, and the occult blood detection module is arranged on the discharge pipe; the invention adopts the occult blood detection module formed by combining the light source, the optical sensor, the first microcontroller and the direct current-direct current conversion module, the light source and the optical sensor are concealed in a drain pipe of a closestool, and the light beam emitted by the light source is guided by the optical lens and the light guide pipe and penetrates through penetrating light generated by excrement aqueous solution to irradiate the optical sensor, thereby realizing the detection function of whether the excrement contains an occult blood signal; and the device overall design is accurate, and simple structure and compactness have efficient detection function and with low costs, are fit for popularizing and applying.
Description
Technical Field
The invention relates to a detection device, in particular to a built-in fecal occult blood detection device and a method thereof.
Background
According to the national cancer institute, in the united states, the incidence of colorectal cancer accounts for 8% of the total incidence of cancer, the fourth incidence and the second death. In China, the number of colorectal cancer diseases accounts for 18.6% of the world, the number of colorectal cancer deaths accounts for 20.1% of the world, and the two are the first in the world. Therefore, it is worldwide important to prevent and treat colorectal cancer in china.
The primary disease sign of colorectal cancer is fecal occult blood, and the primary disease sign of bladder cancer and ureteral cancer is urine occult blood, so detection of fecal occult blood becomes one of the important key technologies for disease prevention. The existing occult blood detection method adopts an immunity method for occult blood detection, and mainly has the following problems and disadvantages: firstly, the excrement sample must be collected by oneself and then sent back to the hospital to wait for the test result, which causes the loss of rapidness and convenience and brings unnecessary trouble to the test; secondly, only about 1 g of fecal sample is collected when the fecal sample is collected, and only about 6 mg of the occult blood is used by the hospital for testing after the fecal sample arrives at the hospital, because the occult blood is not uniformly distributed in the feces, false negative is easily generated because the occult blood is not collected in the testing process, the testing efficiency is reduced, and the testing effect is poor; thirdly, the tumor or polyp itself is intermittently bleeding, but not continuously bleeding, so that there is a possibility that the tumor or polyp does not bleed on the day of collecting the stool sample or the day before, which causes a false negative test result, reduces the detection efficiency, and has a poor detection effect.
In addition, chinese patent publication No. CN104254621A, 2014, 12, 31, discloses a device and method for remote measuring blood in human feces and urine, which mainly has the following problems: on one hand, a fluorescent agent and an oxidant are added into the closestool to be combined with blood in excrement or urine, an exciting light is provided for irradiation, and whether fluorescence is generated or not is judged; on the other hand, the method requires additional steps for the general public, and generates chemical consumables, which is inconvenient to use.
Japanese patent publication No. 1998339728, published 12/22/1998, discloses a toilet component inspection apparatus and method which mainly have the following problems: one is to have a feces collection program; secondly, extra diluent must be added; third, it is necessary to have a cleaning process.
U.S. Pat. No. US7223604B1 discloses Methods and kits for the detection of the phytof erythrocytes, which suffer mainly from the following problems: firstly, detecting whether occult blood signals exist by adopting a fluorescence method; secondly, a reactingsolution must be added to substances existing in the occult blood, and the reactingsolution contains a strong reducing agent with multiple substances; and thirdly, the processing before the optical analysis is carried out is too complex and is not suitable for the domestic operation and application of the general people.
U.S. Pat. No. 5,2013/0273524A 1 discloses a Device for performing an above, cell, and/or a pathogen count and methods for use therof, which mainly has the following problems: the main purpose of this patent is for cell counting, not occult blood detection.
Patent publication No. WO2017/027994a1 discloses a health monitoring toilet, which mainly has the following problems: human excrement must be collected, a diluent is provided, the excrement sample and the diluent are fully stirred, and then detection is carried out through detection test paper, so that the detection of indexes of red blood cells, white blood cells, occult blood and the like of excrement can be realized.
In addition, even though the existing toilet device is provided with the occult blood detection module and has an occult blood detection function, the detection position of the occult blood detection module is unreasonable, for example, the occult blood detection module is not concealed in the toilet, so that the occult blood detection module is interfered, the accuracy and the precision of occult blood detection are greatly reduced, and inconvenience is brought to operation in the detection process.
Disclosure of Invention
The invention provides a built-in fecal occult blood detection device and method which can detect whether the aqueous solution of the feces contains occult blood signals through penetrating light, can detect whether the feces contains occult blood or not only without adding any biochemical reagent and without collecting excrement or urine, but also by detecting the occult blood signals, can detect whether the feces contains occult blood or not, is not used for detecting whether cancer exists or not, and can be widely applied to the fields of human feces.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the hidden type excrement occult blood detection device comprises an occult blood detection module for detecting whether an occult blood signal is contained in excrement aqueous solution in a closestool or not, wherein the occult blood detection module is electrically connected with an intelligent closestool, and the intelligent closestool can be fixedly arranged on the closestool in an openable or closable manner; the closestool is provided with a discharge pipe, and the occult blood detection module is arranged on the discharge pipe; the occult blood detection module is used for detecting whether excrement in the excrement aqueous solution of the closestool contains blood, and is not used for detecting whether cancer exists, and in the detection process, no biochemical reagent is required to be added into the excrement aqueous solution in the closestool, and excrement or urine is not required to be collected from the excrement aqueous solution of the closestool, so that the occult blood detection applied to the living closestool is extremely convenient and is widely applied; the hidden occult blood detection module in the closestool is adopted, so that the function of detecting whether the excrement contains an occult blood signal is realized, the larger interference on detection caused by the fact that the occult blood detection module is exposed out of the closestool is reduced, and the protection effect on the occult blood detection module in the long-time use process is realized.
Preferably, the occult blood detection module comprises a light source for emitting a light beam with a specific wavelength to excrement aqueous solution in the closestool, an optical sensor for receiving penetrating light penetrating through the excrement aqueous solution, and a first microcontroller for detecting occult blood signals of the penetrating light, wherein the first microcontroller is respectively connected with the light source and the optical sensor, the light source and the optical sensor are respectively arranged on the outer edges of the pipe walls at two sides of the sewage discharge pipe, so that the light source and the optical sensor are in opposite positions, and the excrement aqueous solution is positioned between the light source and the optical sensor; when the occult blood detection module starts to work, a light beam with a specific wavelength emitted by the light source is emitted to the excrement aqueous solution and penetrates through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller; the first microcontroller firstly converts the light-transmitting optical signal into an electric signal, then converts the electric signal into a digital signal, then performs data processing on the digital signal, judges whether the excrement contains the occult blood signal or not according to the data processing, obtains a detection result, and then sends the detection result to the intelligent closestool. Wherein, the light source is an LED light source or laser; the drain of blow off pipe submergence is in excrement aqueous solution, and the pipe wall outer fringe of blow off pipe both sides is equipped with protective housing or other protection device that are used for protecting light source and optical sensor respectively for light source and optical sensor are not corroded by excrement aqueous solution.
Preferably, an optical lens is arranged between the light source and the optical sensor; wherein, an optical lens is respectively arranged between the light source and the excrement aqueous solution and between the optical sensor and the excrement aqueous solution, one optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the light source, and the other optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the optical sensor; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the optical lens and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the optical lens, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The optical lens can perform convergence on the light beam emitted by the light source, reduce the leakage of stray light and the light beam, improve the intensity of penetrating light received by the optical sensor, improve the signal-to-noise ratio (S/N ratio) of detection, and further improve the detection accuracy and the detection efficiency.
Preferably, a light guide pipe is arranged between the light source and the optical sensor; wherein, a light pipe is respectively arranged between the light source and the excrement aqueous solution and between the optical sensor and the excrement aqueous solution, one light pipe is arranged at the outer edge of the pipe wall of the sewage pipe corresponding to the light source, and the other light pipe is arranged at the outer edge of the pipe wall of the sewage pipe corresponding to the optical sensor; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the light guide pipe and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the light guide pipe, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The orifices of the two light guide pipes are respectively aligned with the light source and the optical sensor, so that light emitted by the light source is transmitted into the excrement aqueous solution through the light guide pipes and penetrates through the excrement aqueous solution to generate penetrating light, and the penetrating light is transmitted to the optical sensor through the light guide pipes, so that light beams emitted by the light source can be completely transmitted into the excrement aqueous solution, and the optical sensor can completely receive the penetrating light guided out from the light guide pipes; the penetrating light emitted from the light source into the excrement aqueous solution and emitted from the excrement aqueous solution is guided to the optical sensor as completely as possible by the light guide pipe, and the detection accuracy and the detection efficiency of the optical sensor on the received penetrating light are further improved.
Preferably, an optical lens is provided between the light source and the excrement aqueous solution, and a light guide is provided between the optical sensor and the excrement aqueous solution. The optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the light source, and the light guide pipe is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the optical sensor; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the optical lens and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the light guide pipe, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The optical lens can perform convergence on the light beam emitted by the light source, reduce the leakage of stray light and the light beam, improve the intensity of penetrating light received by the optical sensor, improve the signal-to-noise ratio (S/N ratio) of detection, and further improve the detection accuracy and the detection efficiency. The penetrating light emitted from the light source into the excrement aqueous solution and emitted from the excrement aqueous solution is guided to the optical sensor as completely as possible by the light guide pipe, and the detection accuracy and the detection efficiency of the optical sensor on the received penetrating light are further improved.
Preferably, a light guide is provided between the light source and the excrement aqueous solution, and an optical lens is provided between the optical sensor and the excrement aqueous solution. The optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the optical sensor, and the light guide pipe is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the light source; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the light guide pipe and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the optical sensor, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The optical lens can perform the convergence effect on the light beam emitted by the light source, reduce the leakage of stray light and the light beam, and improve the intensity of the light emitted by the light source penetrating into the excrement aqueous solution, so that the intensity of penetrating light received by the optical sensor is improved, the signal-to-noise ratio (S/N ratio) of detection is improved, and the detection accuracy and the detection efficiency are further improved. The penetrating light emitted from the light source into the excrement aqueous solution and emitted from the excrement aqueous solution is guided to the optical sensor as completely as possible by the light guide pipe, and the detection accuracy and the detection efficiency of the optical sensor on the received penetrating light are further improved.
Preferably, the light source emits light beams with the wavelength range of 250-650nm to the excrement aqueous solution in the closestool, so that the light beams emitted by the light source have a larger detection range; the blood absorption spectrum contained in the occult blood signal has three characteristic peaks, wherein the three characteristic peaks are 415nm, 541nm and 577nm respectively, and the occult blood detection module can accurately detect the occult blood signal through the blood absorption spectra with the three characteristic peaks of 415nm, 541nm and 577nm respectively, so that the detection accuracy and the detection efficiency of the occult blood signal are further improved.
Preferably, the thickness of the excrement aqueous solution is less than 80mm so that light emitted from the light source can easily penetrate the excrement aqueous solution and generate penetrating light to be incident on the optical sensor.
The concealed fecal occult blood detecting method includes the following steps:
the method comprises the following steps: turning on a key switch, switching on an external power supply, starting the intelligent closestool and starting detection;
step two: the second microcontroller sends a trigger signal to the occult blood detection module;
step three: the occult blood detection module receives a trigger signal sent by the second microcontroller;
step four: the trigger signal firstly activates the light source, the light source then emits light beams with specific wavelengths, the light beams are emitted into excrement aqueous solution in the closestool and generate penetrating light, then the penetrating light is emitted into the optical sensor, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller; wherein, the light beam is emitted into the excrement aqueous solution in the closestool through the optical lens and/or the light guide pipe and generates penetrating light, and then the penetrating light is emitted into the optical sensor through the optical lens and/or the light guide pipe; the light source is an LED light source or laser; the basic detection principle of the present invention is to measure the blood absorption spectrum, and certainly not limited to the blood absorption spectrum, but the measurement of the fluorescence, reflectance including scattering, and raman spectrum characteristics of the blood universal spectrum can be used as the basis for detecting the fecal aqueous solution occult blood;
step five: the first microcontroller firstly converts the light-transmitting optical signal into an electric signal, then converts the electric signal into a digital signal, then performs data processing on the digital signal, judges whether the excrement contains an occult blood signal according to the data processing, obtains a detection result and then sends the detection result to the intelligent closestool;
step six: and the second microcontroller receives the detection result signal and sends the detection result signal to the display device through the display interface, and the display device displays the detection result so as to finish the detection.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the system adopts an occult blood detection module formed by combining a light source, an optical sensor, a first microcontroller and a direct current-direct current conversion module, and realizes the function of detecting whether the excrement contains an occult blood signal or not by hiding the light source and the optical sensor in a drain pipe of the closestool and guiding light beams emitted by the light source through an optical lens and a light guide pipe and transmitting penetrating light generated by penetrating an excrement aqueous solution to the optical sensor; the occult blood detection module is used for detecting whether excrement in the excrement aqueous solution of the closestool contains blood, and is not used for detecting whether cancer exists, and in the detection process, no biochemical reagent is required to be added into the excrement aqueous solution in the closestool, and excrement or urine is not required to be collected from the excrement aqueous solution of the closestool, so that the occult blood detection applied to the living closestool is extremely convenient and is widely applied; and the device overall design is accurate, and simple structure and compactness have efficient detection function and with low costs, are fit for popularizing and applying.
Drawings
FIG. 1 is a schematic diagram showing the basic principle of an embodiment of the built-in type excreta occult blood detection device of the present invention.
FIG. 2 is a control function block diagram of an embodiment of the external power supply, the intelligent toilet and the occult blood detection module of the invention.
FIG. 3 is a control flow diagram of an embodiment of the occult blood detection module of the present invention.
FIG. 4 is a schematic structural diagram of an embodiment of the intelligent toilet bowl, the sewage draining pipe and the occult blood detection module in cooperation.
FIG. 5 is a schematic structural view of an embodiment of the toilet bowl and the sewage drain pipe in an inverted state after the toilet bowl is rotated 180 degrees.
Fig. 6 is a schematic block diagram of a first embodiment of an occult blood detection module for occult blood detection of an aqueous excrement solution according to the present invention.
Fig. 7 is a schematic block diagram of a second embodiment of an occult blood detection module for occult blood detection of an aqueous excrement solution according to the present invention.
Fig. 8 is a schematic block diagram of a third embodiment of an occult blood detection module for occult blood detection of an aqueous excrement solution according to the present invention.
Fig. 9 is a schematic block diagram of a fourth embodiment of an occult blood detection module for occult blood detection of an aqueous excrement solution according to the present invention.
FIG. 10 is a diagram showing the absorption spectra of blood with three characteristic peaks of 415nm, 541nm and 577nm, respectively, in the present invention.
FIG. 11 is an absorption spectrum of a main characteristic absorption peak of an occult blood signal in the present invention, which is obtained by detecting an occult blood signal in an aqueous excrement solution having a volume percentage of 0.001%.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
An embedded type excreta occult blood detection device is shown in figures 1-6, and comprises an occult blood detection module 2 for detecting whether an excreta aqueous solution 1 in a closestool 5 contains an occult blood signal or not, wherein the occult blood detection module 2 is electrically connected with an intelligent closestool 3, and the intelligent closestool 3 can be fixedly arranged on the closestool 5 in an opening or closing manner; the closestool 5 is provided with a sewage discharge pipe 6, and the occult blood detection module 2 is arranged on the sewage discharge pipe 6.
In this embodiment, the occult blood detecting module 2 includes a light source 21 for emitting a light beam with a specific wavelength to the excrement aqueous solution 1 in the toilet bowl 5, an optical sensor 22 for receiving penetrating light penetrating through the excrement aqueous solution 1, and a first microcontroller 23 for detecting occult blood signals of the penetrating light, wherein the first microcontroller 23 is respectively connected with the light source 21 and the optical sensor 22, and the light source 21 and the optical sensor 22 are respectively arranged on the outer edges of the pipe walls at two sides of the sewage draining pipe 6.
In this embodiment, an optical lens 7 is disposed between the light source 21 and the optical sensor 22; wherein, an optical lens is respectively arranged between the light source and the excrement aqueous solution and between the optical sensor and the excrement aqueous solution, one optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the light source, and the other optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the optical sensor; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the optical lens and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the optical lens, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The optical lens can perform convergence on the light beam emitted by the light source, reduce the leakage of stray light and the light beam, improve the intensity of penetrating light received by the optical sensor, improve the signal-to-noise ratio (S/N ratio) of detection, and further improve the detection accuracy and the detection efficiency.
In this embodiment, the light source 21 emits a light beam with a wavelength range of 250 and 650nm to the excrement aqueous solution 1 in the toilet bowl 5; the occult blood signal contains a blood absorption spectrum having three characteristic peaks of 415nm, 541nm, and 577nm, respectively, as shown in fig. 10.
In the present embodiment, the absorption spectrum of the main characteristic absorption peak of the occult blood signal obtained by detecting the occult blood signal in the aqueous excrement solution having a volume percentage concentration of 0.001% is shown in fig. 11, and as is apparent from fig. 11, the absorption spectra have characteristic absorption peaks of 415nm, 541nm, and 577nm, and it can be deduced that the aqueous excrement solution contains the occult blood signal.
In this embodiment, the thickness S of the excrement aqueous solution 1 is less than 80 mm.
In the embodiment, the intelligent toilet bowl 3 and the occult blood detection module 2 are powered by the external power supply 4; the occult blood detection module 2 further comprises a direct current-direct current conversion module 24 electrically connected with the intelligent toilet 3, and the direct current-direct current conversion module 24 is respectively connected with the light source 21, the optical sensor 22 and the first microcontroller 23; the intelligent toilet 3 is provided with an alternating current-direct current conversion module 32, a second microcontroller 31, an operation interface 33 and a display interface 34, the second microcontroller 31 is respectively connected with the alternating current-direct current conversion module 32, the operation interface 33 and the display interface 34, the alternating current-direct current conversion module 32 is respectively connected with the external power supply 4 and the direct current-direct current conversion module 24, the operation interface 33 is connected with a key switch, and the display interface 34 is connected with a display device.
The concealed fecal occult blood detecting method as shown in fig. 1-6 includes the following steps:
the method comprises the following steps: turning on a key switch, switching on an external power supply 4, starting the intelligent closestool 3 and starting detection;
step two: the second microcontroller 31 sends a trigger signal to the occult blood detection module 2;
step three: the occult blood detection module 2 receives the trigger signal sent from the second microcontroller 31;
step four: the trigger signal firstly activates the light source 21, the light source 21 emits a light beam with a specific wavelength, the light beam is emitted into the excrement water solution 1 in the toilet bowl 5 and generates penetrating light, then the penetrating light is emitted into the optical sensor 22, and the optical sensor 22 receives the penetrating light and transmits the received penetrating light to the first microcontroller 23; wherein, the light beam with specific wavelength emitted by the light source is emitted to the excrement aqueous solution through the optical lens and penetrates through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the optical lens, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller;
step five: the first microcontroller 23 converts the light-transmitting optical signal into an electrical signal, converts the electrical signal into a digital signal, performs data processing on the digital signal, judges whether the excrement contains an occult blood signal according to the data processing, obtains a detection result, and sends the detection result to the intelligent toilet 3;
step six: the second microcontroller 31 receives the detection result signal and sends the detection result signal to the display device through the display interface 34, and the display device displays the detection result, thereby ending the detection.
Example 2
The built-in fecal occult blood detecting apparatus, as shown in fig. 1-5 and 7, differs from example 1 only in that:
in this embodiment, a light pipe 8 is disposed between the light source 21 and the optical sensor 22; wherein, a light pipe is respectively arranged between the light source and the excrement aqueous solution and between the optical sensor and the excrement aqueous solution, one light pipe is arranged at the outer edge of the pipe wall of the sewage pipe corresponding to the light source, and the other light pipe is arranged at the outer edge of the pipe wall of the sewage pipe corresponding to the optical sensor; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the light guide pipe and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the light guide pipe, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The orifices of the two light guide pipes are respectively aligned with the light source and the optical sensor, so that light emitted by the light source is transmitted into the excrement aqueous solution through the light guide pipes and penetrates through the excrement aqueous solution to generate penetrating light, and the penetrating light is transmitted to the optical sensor through the light guide pipes, so that light beams emitted by the light source can be completely transmitted into the excrement aqueous solution, and the optical sensor can completely receive the penetrating light guided out from the light guide pipes; the penetrating light emitted from the light source into the excrement aqueous solution and emitted from the excrement aqueous solution is guided to the optical sensor as completely as possible by the light guide pipe, and the detection accuracy and the detection efficiency of the optical sensor on the received penetrating light are further improved.
The concealed fecal occult blood detecting method as shown in fig. 1-5 and 7 includes the following steps:
the method comprises the following steps: turning on a key switch, switching on an external power supply 4, starting the intelligent closestool 3 and starting detection;
step two: the second microcontroller 31 sends a trigger signal to the occult blood detection module 2;
step three: the occult blood detection module 2 receives the trigger signal sent from the second microcontroller 31;
step four: the trigger signal firstly activates the light source 21, the light source 21 emits a light beam with a specific wavelength, the light beam is emitted into the excrement water solution 1 in the toilet bowl 5 and generates penetrating light, then the penetrating light is emitted into the optical sensor 22, and the optical sensor 22 receives the penetrating light and transmits the received penetrating light to the first microcontroller 23; the light source emits light beams with specific wavelengths to the excrement aqueous solution through the light guide pipe and penetrates through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the light guide pipe, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller;
step five: the first microcontroller 23 converts the light-transmitting optical signal into an electrical signal, converts the electrical signal into a digital signal, performs data processing on the digital signal, judges whether the excrement contains an occult blood signal according to the data processing, obtains a detection result, and sends the detection result to the intelligent toilet 3;
step six: the second microcontroller 31 receives the detection result signal and sends the detection result signal to the display device through the display interface 34, and the display device displays the detection result, thereby ending the detection.
Example 3
The built-in fecal occult blood detecting apparatus, as shown in fig. 1-5 and 8, differs from the embodiments 1 and 2 only in that:
in this embodiment, an optical lens 7 is disposed between the light source 21 and the excrement aqueous solution 1, and a light guide 8 is disposed between the optical sensor 22 and the excrement aqueous solution 1; the optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the light source, and the light guide pipe is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the optical sensor; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the optical lens and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the light guide pipe, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The optical lens can perform convergence on the light beam emitted by the light source, reduce the leakage of stray light and the light beam, improve the intensity of penetrating light received by the optical sensor, improve the signal-to-noise ratio (S/Nratio) of detection, and further improve the detection accuracy and the detection efficiency. The penetrating light emitted from the light source into the excrement aqueous solution and emitted from the excrement aqueous solution is guided to the optical sensor as completely as possible by the light guide pipe, and the detection accuracy and the detection efficiency of the optical sensor on the received penetrating light are further improved.
The concealed fecal occult blood detecting method as shown in fig. 1-5 and 8 includes the following steps:
the method comprises the following steps: turning on a key switch, switching on an external power supply 4, starting the intelligent closestool 3 and starting detection;
step two: the second microcontroller 31 sends a trigger signal to the occult blood detection module 2;
step three: the occult blood detection module 2 receives the trigger signal sent from the second microcontroller 31;
step four: the trigger signal firstly activates the light source 21, the light source 21 emits a light beam with a specific wavelength, the light beam is emitted into the excrement water solution 1 in the toilet bowl 5 and generates penetrating light, then the penetrating light is emitted into the optical sensor 22, and the optical sensor 22 receives the penetrating light and transmits the received penetrating light to the first microcontroller 23; the light beam with a specific wavelength emitted by the light source is emitted to the excrement aqueous solution through the optical lens and penetrates through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the light guide pipe, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller;
step five: the first microcontroller 23 converts the light-transmitting optical signal into an electrical signal, converts the electrical signal into a digital signal, performs data processing on the digital signal, judges whether the excrement contains an occult blood signal according to the data processing, obtains a detection result, and sends the detection result to the intelligent toilet 3;
step six: the second microcontroller 31 receives the detection result signal and sends the detection result signal to the display device through the display interface 34, and the display device displays the detection result, thereby ending the detection.
Example 4
The built-in fecal occult blood detecting apparatus, as shown in fig. 1-5 and 9, differs from examples 1, 2 and 3 only in that:
in this embodiment, a light pipe 8 is provided between the light source 21 and the excrement aqueous solution 1, and an optical lens 7 is provided between the optical sensor 22 and the excrement aqueous solution 1; the optical lens is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the optical sensor, and the light guide pipe is arranged at the outer edge of the pipe wall of the sewage discharge pipe corresponding to the light source; when the occult blood detection module starts to detect, light beams with specific wavelengths emitted by the light source are emitted to excrement aqueous solution through the light guide pipe and penetrate through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the optical sensor, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller. The optical lens can perform the convergence effect on the light beam emitted by the light source, reduce the leakage of stray light and the light beam, and improve the intensity of the light emitted by the light source penetrating into the excrement aqueous solution, so that the intensity of penetrating light received by the optical sensor is improved, the signal-to-noise ratio (S/N ratio) of detection is improved, and the detection accuracy and the detection efficiency are further improved. The penetrating light emitted from the light source into the excrement aqueous solution and emitted from the excrement aqueous solution is guided to the optical sensor as completely as possible by the light guide pipe, and the detection accuracy and the detection efficiency of the optical sensor on the received penetrating light are further improved.
The concealed fecal occult blood detecting method as shown in fig. 1-5 and 9 includes the following steps:
the method comprises the following steps: turning on a key switch, switching on an external power supply 4, starting the intelligent closestool 3 and starting detection;
step two: the second microcontroller 31 sends a trigger signal to the occult blood detection module 2;
step three: the occult blood detection module 2 receives the trigger signal sent from the second microcontroller 31;
step four: the trigger signal firstly activates the light source 21, the light source 21 emits a light beam with a specific wavelength, the light beam is emitted into the excrement water solution 1 in the toilet bowl 5 and generates penetrating light, then the penetrating light is emitted into the optical sensor 22, and the optical sensor 22 receives the penetrating light and transmits the received penetrating light to the first microcontroller 23; the light source emits light beams with specific wavelengths to the excrement aqueous solution through the light guide pipe and penetrates through the excrement aqueous solution to generate penetrating light, the penetrating light is emitted to the opposite optical sensor through the optical sensor, and the optical sensor receives the penetrating light and transmits the received penetrating light to the first microcontroller;
step five: the first microcontroller 23 converts the light-transmitting optical signal into an electrical signal, converts the electrical signal into a digital signal, performs data processing on the digital signal, judges whether the excrement contains an occult blood signal according to the data processing, obtains a detection result, and sends the detection result to the intelligent toilet 3;
step six: the second microcontroller 31 receives the detection result signal and sends the detection result signal to the display device through the display interface 34, and the display device displays the detection result, thereby ending the detection.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The concealed type excreta occult blood detection device is characterized in that: the intelligent closestool comprises an occult blood detection module (2) for detecting whether an occult blood signal is contained in excrement aqueous solution (1) in a closestool (5), wherein the occult blood detection module (2) is electrically connected with an intelligent closestool (3), and the intelligent closestool (3) can be fixedly arranged on the closestool (5) in an opening or closing manner; the closestool (5) is provided with a sewage discharge pipe (6), and the occult blood detection module (2) is arranged on the sewage discharge pipe (6).
2. The concealed type excreta occult blood detection device according to claim 1, wherein: the occult blood detection module (2) comprises a light source (21) for emitting light beams with specific wavelengths to excrement aqueous solution (1) in a closestool (5), an optical sensor (22) for receiving penetrating light penetrating through the excrement aqueous solution (1), and a first microcontroller (23) for detecting occult blood signals of penetrating light, wherein the first microcontroller (23) is respectively connected with the light source (21) and the optical sensor (22), and the light source (21) and the optical sensor (22) are respectively arranged on the outer edges of the pipe walls of two sides of a sewage discharge pipe (6).
3. The concealed type excreta occult blood detection device according to claim 2, wherein: an optical lens (7) is arranged between the light source (21) and the optical sensor (22).
4. The concealed type excreta occult blood detection device according to claim 2, wherein: a light guide pipe (8) is arranged between the light source (21) and the optical sensor (22).
5. The concealed type excreta occult blood detection device according to claim 2, wherein: an optical lens (7) is arranged between the light source (21) and the excrement aqueous solution (1), and a light guide pipe (8) is arranged between the optical sensor (22) and the excrement aqueous solution (1).
6. The concealed type excreta occult blood detection device according to claim 2, wherein: a light guide pipe (8) is arranged between the light source (21) and the excrement aqueous solution (1), and an optical lens (7) is arranged between the optical sensor (22) and the excrement aqueous solution (1).
7. The built-in excreta occult blood detection device according to claim 1, 2, 3, 4, 5 or 6, wherein: the light source (21) emits light beams with the wavelength range of 250 and 650nm to the excrement aqueous solution (1) in the closestool (5); the occult blood signal contains blood absorption spectrum with three characteristic peaks, which are 415nm, 541nm and 577nm respectively.
8. The concealed type excreta occult blood detection device according to claim 7, wherein: the thickness of the excrement aqueous solution (1) is less than 80 mm.
9. The concealed type excreta occult blood detection device according to claim 2, 3, 4, 5, 6 or 8, wherein: the intelligent toilet bowl (3) and the occult blood detection module (2) are powered by an external power supply (4); the occult blood detection module (2) further comprises a direct current-direct current conversion module (24) electrically connected with the intelligent toilet (3), and the direct current-direct current conversion module (24) is respectively connected with the light source (21), the optical sensor (22) and the first microcontroller (23); the intelligent toilet bowl (3) is provided with an alternating current-direct current conversion module (32), a second microcontroller (31), an operation interface (33) and a display interface (34), the second microcontroller (31) is respectively connected with the alternating current-direct current conversion module (32), the operation interface (33) and the display interface (34), the alternating current-direct current conversion module (32) is respectively connected with an external power supply (4) and the direct current-direct current conversion module (24), the operation interface (33) is connected with a key switch, and the display interface (34) is connected with a display device.
10. The concealed fecal occult blood detection method is characterized in that: the method comprises the following specific steps:
the method comprises the following steps: the key switch is turned on, the external power supply (4) is switched on, the intelligent closestool (3) is started, and the detection is started;
step two: the second microcontroller (31) sends a trigger signal to the occult blood detection module (2);
step three: the occult blood detection module (2) receives a trigger signal sent by a second microcontroller (31);
step four: the trigger signal firstly activates the light source (21), the light source (21) emits a light beam with a specific wavelength, the light beam is emitted into the excrement water solution (1) in the closestool (5) and generates penetrating light, then the penetrating light is emitted into the optical sensor (22), and the optical sensor (22) receives the penetrating light and transmits the received penetrating light to the first microcontroller (23);
step five: the first microcontroller (23) firstly converts the light-transmitting optical signal into an electrical signal, then converts the electrical signal into a digital signal, then performs data processing on the digital signal, judges whether the excrement contains an occult blood signal according to the data processing and obtains a detection result, and then sends the detection result to the intelligent closestool (3);
step six: the second microcontroller (31) receives the detection result signal and sends the detection result signal to the display device through the display interface (34), and the display device displays the detection result so as to finish the detection.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111366548A (en) * | 2020-03-23 | 2020-07-03 | 浙江瑞宝生物科技有限公司 | Built-in fecal occult blood detection device and method thereof |
| CN114062284A (en) * | 2020-08-05 | 2022-02-18 | 瑞爱生医股份有限公司 | Biological detection device and method for toilet bowl water solution |
| CN114384025A (en) * | 2020-10-20 | 2022-04-22 | 瑞爱生医股份有限公司 | Biological detection device and method for toilet bowl water solution |
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