CN115249405A - Wearable child bed-wetting early warning device and method - Google Patents
Wearable child bed-wetting early warning device and method Download PDFInfo
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- CN115249405A CN115249405A CN202111662251.2A CN202111662251A CN115249405A CN 115249405 A CN115249405 A CN 115249405A CN 202111662251 A CN202111662251 A CN 202111662251A CN 115249405 A CN115249405 A CN 115249405A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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Abstract
A wearable child bed-wetting early warning device and a method thereof are provided, the device comprises a signal processing and identifying module, a data acquisition and transmission module and an early warning module; the signal processing and identifying module comprises an identifying algorithm importing module and an upper computer, and the data acquiring and transmitting module comprises an ultrasonic sensor for measuring the bladder filling degree, a nerve electric signal sensor for measuring the sacral nerve activity degree, a network adapter and a flexible material worn on the body of the child; the early warning module is used for receiving the signal of the signal processing and identifying module and giving an alarm to the abnormal data processed by the signal processing and identifying module. The early warning method comprises system initialization; transmitting signals collected by the ultrasonic generator and the nerve electric signal sensor to an upper computer, and carrying out signal post-processing by the upper computer; and (5) post-processing and early warning of signals. The multifunctional urine alarm is wearable, can meet the measurement requirements of various parameters of a measured object, and can remind children of urination in time.
Description
Technical Field
The invention belongs to the field of automatic detection, and particularly relates to a wearable child bed-wetting early-warning device and method.
Background
Some children can not effectively control the sphincter vesicae when sleeping due to the development delay of a nerve regulation system, and can cause bed wetting, if the children can not find the bed wetting in time, the skin health of the children can be harmed and the children are easy to catch a cold and get ill in a hot and humid environment for a long time, and the normal growth and development of the children are influenced. The current market products for children's bed wetting only send out the warning signal after bed wetting.
Disclosure of Invention
The invention provides a wearable child bed-wetting early warning device and method for overcoming the defects of the prior art.
A wearable child bed-wetting early warning device comprises a signal processing and identifying module, a data acquisition and transmission module and an early warning module; the signal processing and identifying module comprises an identification algorithm importing module and an upper computer, and the identification algorithm importing module runs on the upper computer and is used for identification algorithm importing, signal comparison identifying and signal processing;
the data acquisition and transmission module comprises an ultrasonic sensor for measuring bladder filling degree, a nerve electrical signal sensor for measuring sacral nerve activity degree, a network adapter and a flexible material worn on the body of the child, wherein the sensor is integrated on the flexible material, is used for transmitting acquired measurement data to the signal processing and identification module through the network adapter and is processed by an upper computer;
the early warning module is used for receiving the signal of the signal processing and identifying module and giving an alarm to the abnormal data processed by the signal processing and identifying module.
The invention also provides a wearable child bed-wetting early warning method, which comprises the following contents:
1.1 System initialization: the system comprises an initialization and inspection ultrasonic generator, a signal processing and identification module, a data acquisition and transmission module and an early warning module, completes the generation of control signals and the introduction of an identification algorithm, ensures no abnormal condition and makes necessary preparation for the operation of the system;
1.2 The ultrasonic generator is opposite to the bladder, transmits ultrasonic waves, reflects the ultrasonic waves through the bladder, receives reflected signals, transmits the reflected signals to an upper computer through a WiFi or Bluetooth module, and performs signal post-processing by the upper computer; the nerve electrical signal sensor is over against the vertebra sections L4 and L5, nerve signals are monitored, the signals obtained through monitoring are transmitted to an upper computer through a WiFi or Bluetooth module, and the upper computer performs signal post-processing;
1.3 Signal post-processing: filtering, characteristic quantity extraction and characteristic value comparison;
1.4 ) early warning
1.4.1 The upper computer processes the received signals and compares the processed signals with a standard value, and transmits signals to the early warning module after abnormity is found;
1.4.2 A signal receiver of the early warning module receives a signal transmitted by the upper computer and then switches on the power supplies of the vibration module and the electric shock module to carry out early warning and wake up the child to get up and urinate.
Compared with the prior art, the invention has the beneficial effects that:
the wearable child bed-wetting early warning device and the method can meet the measurement requirements of multiple parameters of a measured object, solve the problem that the existing early warning device for the child bed-wetting mainly uses a humidity sensor to perform early warning after bed-wetting, can remind the child of urination in time, help the child to establish conditioned reflex, prevent the child from suffering from skin diseases such as eczema and the like, and are beneficial to physical and psychological health of the child.
The technical scheme of the invention is further explained by combining the drawings and the embodiment:
drawings
Fig. 1 is a schematic diagram illustrating a wearable child bed-wetting early warning process according to the present invention;
fig. 2 is a schematic view of the wearable child bed-wetting early warning device according to the present invention;
FIG. 3 is a schematic view of an arrangement of ultrasonic sensors;
FIG. 4 is a schematic diagram of a configuration of a neuroelectrical signal sensor;
FIG. 5 is a flow chart of host computer processing;
in the figure, 1 is an ultrasonic sensor, 2 is a nerve electric signal sensor, and 3 is a vibration sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The present invention will be described in detail below with reference to the drawings and examples.
The wearable child bed-wetting early warning device comprises a signal processing and identifying module, a data acquisition and transmission module and an early warning module;
the signal processing and identifying module comprises an identification algorithm importing module and an upper computer, and the identification algorithm importing module runs on the upper computer and is used for identification algorithm importing, signal comparison identifying and signal processing;
the data acquisition and transmission module comprises an ultrasonic sensor 1 for measuring bladder filling degree, a nerve electrical signal sensor 2 for measuring sacral nerve activity degree, a network adapter and a flexible material worn on the body of a child, wherein the sensor is integrated on the flexible material, is used for transmitting acquired measurement data to the signal processing and identification module through the network adapter and is processed by an upper computer; the flexible material includes, but is not limited to, diapers or other garments.
The early warning module is used for receiving the signal of the signal processing and identifying module and giving an alarm to the abnormal data processed by the signal processing and identifying module. The identification algorithm comprises filtering, target detection, characteristic quantity extraction and comparison identification.
The signal processing and recognition module in the above embodiment mainly performs the post-processing on the signal by extracting the characteristic value and comparing the characteristic value with the standard value, and transmits the signal to the early warning module when the data is abnormal.
In one embodiment, the early warning module comprises a wireless signal receiving module, a vibration module and a shock module. The wireless signal receiving module is used for receiving abnormal signals processed by the upper computer, and is connected with the power supplies of the vibration module and the electric shock module to give an early warning and wake up the child to urinate.
In another embodiment, ultrasonic sensor 1's supersonic generator transmission ultrasonic wave, through the bladder reflection, the reflected signal of receipt exports the host computer through the signal output integrated circuit board, carries out signal post-processing by the host computer, detects children's sign through monitoring bladder filling degree to ensure the accuracy and the reliability of monitoring, realize children's bed-wetting early warning, in time remind children to urinate.
In another embodiment, the nerve electrical signal sensor 2 is arranged right opposite to the shoulder cones L4 and L5, nerve signals are monitored, the signals obtained through monitoring are transmitted to an upper computer through a WiFi or Bluetooth module, and the upper computer performs signal post-processing. The sacral nerve activity degree is monitored to detect the physical signs of the children so as to ensure the accuracy and reliability of monitoring, the sacral nerve controls the opening and closing of the urethral sphincter, the urethral sphincter with low activity degree is relaxed to make the bed wet, the early warning of the bed wetting of the children is realized, and the children are reminded of urinating in time.
In another embodiment, the device further comprises a vibration sensor 3 for measuring the pulse of the child, wherein the vibration sensor 3 is arranged on the flexible material and used for transmitting the acquired measurement data to the signal processing and identifying module through a network adapter and performing signal post-processing through an upper computer.
Usually, the vibration sensor 3 is the intelligent bracelet, and on the sub-wrist was worn to the intelligent bracelet, the monitoring pulse was transmitted the data that obtains the monitoring for the host computer, realized vital sign's monitoring.
As an embodiment, there is also provided a warning method of a wearable child bed-wetting warning device, the method including:
1.1 System initialization: the system comprises an initialization and inspection ultrasonic generator, a signal processing and identification module, a data acquisition and transmission module and an early warning module, completes the generation of control signals and the introduction of identification algorithms, ensures no abnormal condition and makes necessary preparation work for the operation of the system;
1.2 The ultrasonic sensor 1 is directly opposite to the bladder, the ultrasonic generator emits ultrasonic waves, the ultrasonic waves are reflected by the bladder, reflected signals are received, the reflected signals are transmitted to an upper computer through a WiFi or Bluetooth module, and the upper computer performs signal post-processing; the nerve electric signal sensor 2 is over against the vertebra sections L4 and L5, nerve signals are monitored, the signals obtained through monitoring are transmitted to an upper computer through a WiFi or Bluetooth module, and the upper computer performs signal post-processing;
1.3 Signal post-processing: filtering, characteristic quantity extraction and characteristic value comparison;
1.4 ) early warning
1.4.1 The upper computer processes the received signals and compares the processed signals with a standard value, and transmits signals to the early warning module after abnormity is found;
1.4.2 A signal receiver of the early warning module receives a signal transmitted by the upper computer and then switches on the power supplies of the vibration module and the electric shock module to carry out early warning and wake up the child to get up and urinate.
In above-mentioned step 1.2), still can add intelligent bracelet, intelligent bracelet monitoring pulse transmits the data transmission that the monitoring obtained for the host computer, realizes vital sign's monitoring.
Further, in the feature quantity extraction and feature value comparison of step 1.3), the feature quantity includes: zero crossing frequency and short time average energy;
for the ultrasonic sensor 1, the frequency at which the amplitude of the signal changes from positive to negative or from negative to positive is called zero-crossing frequency (ZCR), which is related to the amplitude of the signal and the frequency of sampling. Carrying out sign function processing on signals obtained by sampling at two successive moments, carrying out difference summation, and then making a ratio with a calculated value of the number of samples to obtain a zero-crossing frequency;
calculating as formula (1)
Wherein x (m) is an ultrasonic discrete audio signal, N is the number of samples, and the expression of sgn () is shown in formula (2):
after sampling, the amplitude of the signal is greater than zero and is taken as 1, and if the amplitude of the signal is less than zero, the signal is taken as-1;
when the error of the zero-crossing frequency characteristic quantity of the detection signal and the standard characteristic quantity exceeds 10%, starting early warning;
for the neuroelectric signal sensor 2, the short-time average energy feature quantity (STE): the short-time average energy is the square summation operation of the amplitude of the neural signal, so that the short-time average energy changes obviously along with the time, and the analysis of the short-time energy of the continuous audio signal can reflect the change condition of the amplitude of the signal along with the time to a certain extent;
the following formula (3) is calculated
And starting early warning when the error of the short-time average energy characteristic quantity of the detection signal and the standard characteristic quantity exceeds 10 percent.
Above-mentioned embodiment builds and accomplishes one set of integration monitoring, early warning device that can be used to bladder filling degree, sacral nerve activeness and children's pulse measurement and children's early warning of urinating, and the device detects children's sign from the different aspects through a plurality of characteristic parameter to ensure the accuracy and the reliability of monitoring, and the device can be dressed by the monitoring object, has greatly made things convenient for the early warning before children's bed-wetting.
The present invention is not limited to the above embodiments, and any person skilled in the art can make various changes and modifications to the above-described structures and technical contents without departing from the technical scope of the present invention.
Claims (7)
1. The utility model provides a wearable children bed-wetting early warning device which characterized in that: the system comprises a signal processing and identifying module, a data acquisition and transmission module and an early warning module;
the signal processing and identifying module comprises an identification algorithm importing module and an upper computer, and the identification algorithm importing module runs on the upper computer and is used for identification algorithm importing, signal comparison identifying and signal processing;
the data acquisition and transmission module comprises an ultrasonic sensor for measuring bladder filling degree, a nerve electrical signal sensor for measuring sacral nerve activity degree, a network adapter and a flexible material worn on the body of the child, wherein the sensor is integrated on the flexible material, is used for transmitting acquired measurement data to the signal processing and identification module through the network adapter and is processed by an upper computer;
the early warning module is used for receiving the signal of the signal processing and identifying module and giving an alarm for the abnormal data processed by the signal processing and identifying module.
2. The wearable child bed wetting early warning device according to claim 1, wherein: the early warning module comprises a wireless signal receiving module, a vibration module and an electric shock module.
3. The wearable child bed wetting early warning device according to claim 1, wherein: an ultrasonic generator of the ultrasonic sensor emits ultrasonic waves, the ultrasonic waves are reflected by the bladder, received reflected signals are output to an upper computer through a signal output board card, and the upper computer performs signal post-processing.
4. The wearable child bed wetting early warning device according to claim 1, wherein: the nerve electric signal sensor is arranged right opposite to the shoulder cones L4 and L5, nerve signals are monitored, signals obtained through monitoring are transmitted to an upper computer through a WiFi or Bluetooth module, and signal post-processing is carried out by the upper computer.
5. The wearable child bed wetting early warning device according to claim 1, wherein: still contain the vibration sensor that is used for measuring children's pulse, vibration sensor arranges on flexible material for transmit the measured data who gathers to signal processing and identification module by the network adapter, and carry out signal post-processing by the host computer.
6. A wearable child bed-wetting early warning method is characterized by comprising the following steps: comprises the following contents:
1.1 System initialization: the system comprises an initialization and inspection ultrasonic generator, a signal processing and identification module, a data acquisition and transmission module and an early warning module, completes the generation of control signals and the introduction of an identification algorithm, ensures no abnormal condition and makes necessary preparation for the operation of the system;
1.2 The ultrasonic generator is opposite to the bladder, transmits ultrasonic waves, reflects the ultrasonic waves through the bladder, receives reflected signals, transmits the reflected signals to an upper computer through a WiFi or Bluetooth module, and performs signal post-processing by the upper computer; directly facing the nerve electric signal sensor to the vertebra sections L4 and L5, monitoring nerve signals, transmitting the monitored signals to an upper computer through a WiFi or Bluetooth module, and performing signal post-processing by the upper computer;
1.3 Signal post-processing: filtering, extracting characteristic quantity and comparing characteristic values;
1.4 ) early warning
1.4.1 The upper computer processes the received signals and compares the processed signals with a standard value, and transmits signals to the early warning module after abnormity is found;
1.4.2 A signal receiver of the early warning module receives a signal transmitted by the upper computer and then switches on the power supplies of the vibration module and the electric shock module to carry out early warning and wake up the child to get up and urinate.
7. The wearable child bed-wetting early warning method according to claim 6, wherein: the characteristic amount includes:
zero-crossing frequency:
calculating as formula (1)
Wherein x (m) is an ultrasonic discrete audio signal, N is the number of samples, and the expression of sgn () is shown in formula (2):
after sampling, if the amplitude of the signal is greater than zero, taking 1, and if the amplitude of the signal is less than zero, taking-1;
when the error of the zero-crossing frequency characteristic quantity of the detection signal and the standard characteristic quantity exceeds 10%, starting early warning;
short-time average energy:
the short-time average energy is the square summation operation of the amplitude of the neural signal, and the calculation formula is as follows
And starting early warning when the error of the short-time average energy characteristic quantity of the detection signal and the standard characteristic quantity exceeds 10%.
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