TWI470582B - Portable infant monitor device - Google Patents

Description

Portable infant monitoring device

The present invention relates to a portable infant monitoring device, and more particularly to a non-contact portable infant monitoring device.

Nowadays, social pressure is high and the phenomenon of minority births is generated. It is a trend for the quality care of newborn children.

Care for newborn children or infants, in addition to having to pay attention to their emotional reactions, such as crying, etc., and give appropriate care, the sudden physiological response to newborn children must also pay attention. For newborn children who are constantly crying, how to properly calm their emotions is also an important issue.

In the quality care of newborn children, another important situation needs attention. For example, Sudden Infant Death Syndrome (SIDS), which occurs in many cases, is a very healthy newborn child, but suddenly and unpredictably dies, and the cause is still under study. SIDS is not a disease and therefore cannot be diagnosed from newborns. The incidence in the United States is close to two for every 1,000 newborn children, and the highest is 90% for less than six months. In the case of SIDS, there will be a period of temporary stop breathing (Period of Apnea, Stoppage of Breathing), and during this time, there is an opportunity to save. Or if there has been such a situation, you must pay more attention to whether it will happen again.

Therefore, monitoring the state of breathing is also a quality care for newborn children. One of the important topics. Because "breathing" is the main source of oxygen in the circulatory system, once the breathing stops for more than 4-6 minutes, the brain begins to lack oxygen; more than 10 minutes leads to a relative increase in the likelihood of brain death.

At present, most of the methods for monitoring respiratory arrest in the market use EKG and other physiological monitors to monitor the respiration rate. However, this method requires a large number of electrode sheets and transmission lines to be adhered to. It is very inconvenient for infants and children in daily life, and long-term adhesion of electrode sheets is easy to make. Infants and children with skin allergies, if you can use wireless methods to monitor the breathing and activity status of infants and young children, it will be convenient for users to install and monitor in daily life.

In the Republic of China Patent No. I303984, it is mentioned that the fabric of the conductive yarn and the general fiber is replaced by a metal wire to measure the electrical signal of the body surface (electrocardiogram signal).

U.S. Patent No. 7,611,472, the disclosure of which is incorporated herein by reference to U.S. Patent No. 5, 864, 291 and U.S. Patent No. 5,400, 012, which is incorporated herein by reference. Infants and young children to detect breathing, and then to determine whether there is a state of cessation of breathing; U.S. Patent No. 4,146,885, which is directed to measuring the pressure of a gas, to detect the state of cessation of breathing and to issue a warning, is different from the pulse wave of this patent. The method measures the breathing of the infant by non-contact measurement, and then can determine whether there is a suspension of breathing.

The above-mentioned monitoring system uses contact-type induction, which is repellent for newborn children. If it is to provide better quality care, it must propose a device that can effectively monitor and comfort young children. .

The invention discloses a non-contact portable infant monitoring device.

In one embodiment, a portable infant monitoring device is provided that includes a respiratory sensor and an alarm receiver. The respiratory sensor senses the breathing or heartbeat response of the infant at a certain distance that is not in contact, obtains a sensing signal, and transmits the sensing signal in a wireless transmission manner. The alarm receiver wirelessly receives the sensing signal, and sends a warning signal according to the sensing signal measured by the respiratory sensor.

In an embodiment, the portable infant monitoring device includes a nanosecond pulse breathing sensing device and a wireless transmission module. The nanosecond pulse breathing sensing device is configured to emit a nanosecond pulse to detect an infant's breathing or heartbeat reaction, and receive a response signal to determine a sensing signal. The wireless transmission module transmits the sensing signal to the alarm receiver by wireless transmission.

In the above portable infant monitoring device, after the alarm receiver is connected to the respiratory sensor, when the alarm receiver does not receive the sensing signal for more than a predetermined time, or the alarm receiver and the respiratory sensor The alarm receiver will give a warning signal after more than a predetermined distance between the devices.

In the above portable infant monitoring device, the alarm receiver includes a plurality of display lights and at least one alert sounder for selecting a display light or a warning sound according to the sensed state of the received sensing signal. Send a warning signal.

The above described features and advantages of the present invention will be more apparent from the following description.

The present disclosure proposes a contactless portable infant monitoring device.

The present disclosure applies Nanosecond Pulse Near-field Sensing (NPNS) technology to detect lung activity in the deep thoracic cavity with the principle of low-power low-electromagnetic micro-radar, without the need for patches and large machines. Burden, easy to carry and install, combined with RF wireless data transmission, will send emergency rescue messages to the loved ones, and can monitor whether the infants are active, and whether the infants are far away from their loved ones, if they are far away from their relatives, the distance will be Send out a warning.

Referring to FIG. 1 , a portable infant monitoring device 100 for illustrating one of the embodiments of the present disclosure includes a respiratory sensor 110 and an alarm receiver 120 that are wirelessly transmitted.

The respiratory sensor 110 uses the nanosecond pulse near-field sensing (NPNS) technology to detect the lung activity of the chest cavity with the principle of low-power low-electromagnetic micro-radar, and does not require the burden of the patch and the large machine, and is convenient to carry and install. A live buzzer alarm is issued when the user stops breathing, and the information is transmitted in conjunction with the RF wireless transmission module to transmit an emergency rescue message to the alarm receiver 120. After receiving the signal from the respiratory sensor 110, the alarm receiver 120 issues an alarm or issues a related message of the monitored person.

In addition, this related message includes the state of activity of the infant. When the infant is active, the family will be notified through the RF wireless transmission module. When the infant is too far away from the alarm receiver, the alarm receiver cannot receive the message from the infant, and the receiver will give an alarm. Allow family members to pay attention to whether infants and young children are far away or lost. The activity state of the infant and the infant, in one embodiment, includes an infant's breathing condition or a sound emitted, or an emotional state obtained by a combination of the two. The emotional state is based on different emotional conditions to achieve different results, such as the state of breathing, or crying, or crying noise is gradually weakening and is about to enter sleep. The state of breathing includes an alert state that can be judged to be sleeping, or even a pause in breathing.

Please refer to FIG. 2A for explaining the configuration and application of the portable infant monitoring device 100. The respiratory sensor 110 adopts a non-contact type sensor, and does not need to adhere a large number of electrode sheets and transmission lines, etc., which causes anxiety and discomfort to infants and children, and can also avoid hygiene problems. The sensing is performed within a predetermined distance range. For example, the respiratory sensor 110 can be placed on the handle, side of the stroller 104, or attached to the chest of the infant 102. Measure physiological signals.

The alarm receiver 120 can be worn on a remote user, such as a waist, an arm, or a carry-on bag. In one embodiment, the alarm receiver 120 includes a plurality of display lights 121-124. The warning lights can be distinguished by different colors, for example, the light 121 is red, as a breath-stop warning signal reflecting the most emergency. The lamp number 122 is yellow and serves as an operation occurrence instruction signal. The signal 123 is green as a transmission function indication signal. The signal 124 is blue and serves as a power source indicating signal. The 125 is a warning sounder, such as a buzzer, which emits a loud alarm signal in an emergency.

a wireless communication relationship between the respiratory sensor 110 and the alarm receiver 120, One-to-one or one-to-many communication can be used. The method for judging the wireless communication relationship includes giving a unique single machine code of the different respiratory sensors 110 in the manner of machine coding, and adding the machine code to the transmission format, so that the single alarm receiver 120 can A plurality of respiratory sensors 110 are simultaneously received. The signal from the respiratory sensor 110 can be received by the plurality of alarm receivers 120.

In an embodiment, after the wireless communication relationship between the respiratory sensor 110 and the alarm receiver 120 is established, for example, after the machine code authentication is used, the wireless channel within a certain receiving range can be used for transmission. Moreover, the alarm receiver 120 periodically receives the sensing signals transmitted by the respiratory sensor 110. If the alarm receiver 120 does not receive the sensing signal transmitted by the respiratory sensor 110 within a predetermined time, the alarm receiver 120 also issues an alert signal to notify the user.

In an embodiment, after the wireless communication relationship between the respiratory sensor 110 and the alarm receiver 120 is established, if the alarm receiver 120 and the respiratory sensor 110 exceed a predetermined distance, the alarm receiver 120 also A warning signal will be sent to inform the user.

For example, the distance between the respiratory sensor 110 and the alarm receiver 120 exceeds the receivable range, and the alarm receiver 120 also issues an alert signal to notify the user.

Referring to FIG. 2B, the above-described respiratory sensor 110, in one embodiment, includes a nanosecond pulse breathing sensing device 112 and an RF wireless transmission unit 114. The nanosecond pulse near-field sensing (NPNS) technology adopted by the nanosecond pulse breathing sensing device 112 measures the heartbeat and breathing of the human body in a non-contact manner. Equal signal. The parameters that can be measured and analyzed by this technique include: heart rate/heart rate variability (HRV) trend variability, respiratory rate/trend variability, body movement momentum and frequency, sleep depth index, and breathing abort warning. The nanosecond pulse near-field sensor detects the lung activity of the chest cavity with the principle of low-power low-electromagnetic micro-radar. It does not require the burden of patches and large machines, and is easy to carry and install.

In one of the various embodiments, the nanosecond pulsed breathing sensing device 112 can perform human heartbeat and breathing conditions for immediate, non-contact, long-term, continuous monitoring. The nanosecond pulse near-field sensing technology is a miniaturized radar sensing technology that can be used to detect human physiological parameters (heartbeat and breathing). The specifications of the nanosecond pulse breathing sensing device 112 are as follows: antenna and circuit design specifications: miniature panel antenna

Adjustable signal sensing distance: 5-20cm

Sensing frequency: <1GHz

Power supply: 5VDC

Data Transfer: Bluetooth (Bluetooth) or RF wireless transmission

Physiological signal measurement and analysis applications include: heart rate (HR) / heart rate variability (HRV) / trend variation characteristics analysis

Analysis of respiratory rate/trend variation characteristics

Fatigue sleep warning

Breath stop warning

Analysis of sentiment indicators

Referring to FIG. 3A, in the portable infant monitoring device of one of the embodiments of the present disclosure, the nanosecond pulse breathing of the respiratory sensor 310 The sensing device 312 can perform different emotion sensing programs, such as the breath suspension determination program 312a or the activity determination program 312b in the illustration.

In the breath suspension determination program 312a, if a breath suspension condition occurs, the RF wireless transmission unit 314 transmits the message requiring emergency rescue to the remote alarm receiver 330 to issue an alarm in a remotely reflected manner.

The activity judging program 312b, for example, determines whether or not the infant's emotional state is determined based on the heartbeat and breathing conditions of the infant, and after confirming the confirmation via the program, the remote alarm receiver 330 is notified via the RF wireless transmission unit 314.

The alarm receiver 330 includes at least one RF wireless transmission unit 332 and a signal processing unit 334. The RF wireless transmission unit 332 is configured to communicate with the RF wireless transmission unit 314. The signal processing unit 334 can determine, according to the received signal, which sensing sensor 310 transmits the sensing signal, and determines which response should be generated corresponding to the sensing signal, for example, according to different The status displays different acousto-optic effects, such as indicated by a light or by a corresponding sound.

The above-described monitoring of the infant, the respiratory sensor 310 can be judged based on the respiratory signal of the infant. The difference between the respiratory signal of infants and the respiratory signal of adults is that the normal respiratory rate of adults is 10~20 times per minute, and the normal respiratory rate of infants is 30~50 times per minute. Therefore, the method of filtering can be used to judge infants and young children. Breathing signal.

The breathing suspension judgment method adopts the difference value between the maximum value and the minimum value in the application unit time, that is, the peak-to-Peak Amplitude (indicated by Vpp), and sets the minimum range of the difference value. (Vmin). If Vpp is less than Vmin, it is judged that the breath is aborted. In a breathing suspension determination embodiment, Vmin is set to a voltage of 1 volt (Volt), Vpp is calculated every 3 seconds, and it is judged whether Vpp is less than Vmin, and if Vpp is less than Vmin, a breath suspension warning is issued.

4 is a block diagram showing the circuit of a nanosecond pulse breathing sensing device used in an embodiment of the present disclosure. The nanosecond pulse breathing sensing device includes a pulse generator 410, an antenna 412, a receiving unit 414, a range gate delay unit 416, a filter 418, and a signal processing unit 420. For the sensing object 430, a pulse signal of a nanosecond level is emitted by the pulse generator 410 and transmitted via the antenna 412. The antenna 412 can be a miniature panel antenna. The pulse signal TX pulse sent is received by the user 430 and sent back to the receiving unit 414 via the antenna 412. The range gate delay unit 416 can serve as a delay to provide the effective range of the emitted pulses and cause the receiving unit 414 to receive the RX response signal accordingly. The heartbeat and breathing conditions of the sensing object 430 can be determined via the filter 418 and the signal processing unit 420.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Portable infant monitoring device

102‧‧‧ Infants and toddlers

104‧‧‧ baby strollers

110‧‧‧Wireless transmission of respiratory sensors

112‧‧‧Nonasecond pulse breathing or measuring device

114‧‧‧RF wireless transmission unit

120‧‧‧Alarm Receiver

121~124‧‧‧Display lights

125‧‧‧ buzzer

310‧‧‧Respiratory sensor

312‧‧‧Nonasecond pulse breathing sensing device

312a‧‧‧ breath suspension judgment procedure

312b‧‧‧ activity judgment procedure

314‧‧‧RF wireless transmission unit

330‧‧‧Alarm Receiver

332‧‧‧RF wireless transmission unit

334‧‧‧Signal Processing Unit

410‧‧‧ pulse generator

412‧‧‧Antenna

414‧‧‧ receiving unit

416‧‧‧ Range Brake Delay Unit

418‧‧‧ filter

420‧‧‧Signal Processing Unit

430‧‧‧Sensors

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an infant physiological monitoring and appreciating apparatus according to various embodiments of the present disclosure.

1 is a portable diagram illustrating one of various embodiments of the present disclosure. Block diagram of the infant monitoring device circuit.

2A illustrates a schematic diagram of the configuration and application of a portable infant monitoring device.

2B is a block diagram showing the circuit of a respiratory sensor in a portable infant monitoring device.

3A is a schematic diagram showing different reaction sensing procedures of a nanosecond pulse breathing sensing device of a respiratory sensor in a portable infant monitoring device according to one of the embodiments of the present disclosure.

FIG. 3B is a schematic diagram illustrating the determination of the breathing suspension determination mode of the respiratory sensor in the portable infant monitoring device according to one of the embodiments of the present disclosure.

4 is a block diagram showing the circuit of a nanosecond pulse breathing sensing device used in an embodiment of the present disclosure.

110‧‧‧Wireless transmission of respiratory sensors

112‧‧‧Nonasecond pulse breathing sensing device

114‧‧‧RF wireless transmission unit

120‧‧‧Alarm Receiver

Claims (5)

A portable infant monitoring device includes: a respiratory sensor that senses a respiratory response of an infant at a certain distance that is not in contact, obtains a sensing signal, and transmits the sensing signal by wireless transmission, wherein the The sensing signal is generated according to a respiratory frequency of the respiratory reaction or determining whether the breathing is suspended according to the respiratory reaction; and an alarm receiver wirelessly receiving the sensing signal, the sensing according to the sensing of the respiratory sensor And correspondingly issuing a warning signal, wherein the manner of determining whether the breathing is suspended comprises a breathing suspension determining program, wherein the breathing suspension determining program comprises obtaining a difference value between the maximum value and the minimum value of the sensing signals in a unit time, And determining whether the difference value is less than a minimum range, and if the difference value is less than the minimum range, issuing a breath suspension warning of the warning signal. The portable infant monitoring device of claim 1, wherein the respiratory sensor comprises a nanosecond pulse breathing sensing device for emitting a nanosecond pulse to detect a respiratory or heartbeat reaction of the infant. And receiving the response signal to determine the sensing signal; and a wireless transmission module transmitting the sensing signal to the alarm receiver by wireless transmission. The portable infant monitoring device according to claim 1 or 2, wherein the alarm receiver is connected to the respiratory sensor, and the alarm receiver does not receive the alarm when the predetermined time is exceeded. Sensing signal or more than a predetermined distance between the alarm receiver and the respiratory sensor After that, the alarm receiver will send out the warning signal. The portable infant monitoring device according to claim 1 or 2, wherein the alarm receiver comprises a plurality of display lights and at least one alert sounder for sensing according to the received sensing signal. Status, selecting to send the warning signal by the display lights or the warning sounder. The portable infant monitoring device according to claim 1 or 2, wherein the respiratory sensor senses the breathing of the infant by 30 to 50 times per minute to obtain the sensing signal.