Infant sign monitoring system

Abstract

The invention discloses an infant physical sign monitoring system, and relates to the technical field of nursing, the infant physical sign monitoring system comprises a non-contact detection unit, a contact detection unit and a main control unit, the non-contact detection unit comprises a non-contact sensing assembly and a first control unit, and the non-contact sensing assembly is provided with a user physical sign detection area; the contact type detection unit comprises a second control unit, a bearing main body and a contact type sensing assembly; the main control unit is used for acquiring a target in-place signal of the contact type detection unit and controlling the non-contact type detection unit to be in a working state; on one hand, the contact type detection unit can be used for subsequent physical sign detection, and on the other hand, the contact type detection unit can be used for determining whether a detection target is in place or not, so that the main control unit can intelligently and accurately control the non-contact type detection unit to work; particularly, the non-contact sensing assembly is intelligently and accurately controlled to be in a working state.

Description

Technical Field

[0001] The present invention relates to the field of nursing technology, and in particular to a baby vital sign monitoring system. Background Art

[0002] Currently, there are two main methods for monitoring infant vital signs. One uses a wearable smart bracelet, which is worn on the infant's wrist to detect vital signs such as breathing rate and heart rate. The other uses millimeter-wave radar, which is installed on the ceiling and monitors the infant in the bed to obtain vital signs such as breathing rate and heart rate. Millimeter-wave radar detection is increasingly popular because it avoids the physical restraint required by wristband detection.

[0003] However, if only millimeter-wave radar is used for detection, it is easily affected by other factors, resulting in deviations in the detection results. For example, when a baby turns over, the millimeter-wave radar cannot well identify the baby's turning action.

[0004] Chinese invention application publication number CN118965265A, "A Sleep Monitoring Method and System Based on Millimeter-Wave Radar and Pressure Sensors," proposes a system that uses a millimeter-wave radar sensor deployed on the ceiling and a pressure sensor array deployed beneath the mattress for joint detection. This combination of millimeter-wave radar and pressure sensors overcomes the limitations of millimeter-wave radar in capturing precise positions and small-scale movements on the bed, significantly improving the system's overall monitoring accuracy. By combining these two complementary sensing technologies, the accuracy of monitoring data is improved, and by analyzing richer, more multidimensional data, a deeper analysis of sleep quality can be provided.

[0005] However, the detection radar needs to be turned on and off by the mother (caregiver) every time. Otherwise, the detection radar will remain on or off all the time, resulting in increased power consumption or failure to be applied. There is room for improvement in intelligent control. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] To achieve the above object, the present invention provides the following technical solutions: a baby vital signs monitoring system, comprising The non-contact detection unit includes a non-contact sensing component and a first control unit electrically connected to the non-contact sensing component, wherein the non-contact sensing component has a user vital sign detection area for performing non-contact detection on a detection target; The contact detection unit includes a second control unit, a supporting body located in the user's vital sign detection area and configured to support a detection target, and a contact sensing assembly disposed on the supporting body and configured to detect the detection target when the supporting body supports the detection target, wherein the second control unit is electrically connected to the contact sensing assembly; A main control unit is connected to the first control unit and the second control unit by wired or wireless connection. Among them, the contact detection unit sends a target arrival signal when it detects that the detection target is supported by the supporting body; the main control unit is configured to obtain the target arrival signal of the contact detection unit and control the non-contact detection unit to be in a working state.

[0008] As a further solution of the present invention, the main control unit is configured to obtain a target arrival signal of the contact detection unit and control the non-contact sensing component of the non-contact detection unit to be in a working state.

[0009] As a further solution of the present invention: the non-contact sensing component includes a detection radar, and the user's vital sign detection area is located in the detection area of ​​the detection radar.

[0010] As a further solution of the present invention, an edge transition zone is formed in the detection zone of the detection radar and is located outside the user vital sign detection zone.

[0011] As a further solution of the present invention: when the contact detection unit detects that the detection target is separated from the support of the supporting body, a target departure signal is issued; after the main control unit receives the target departure signal issued by the contact detection unit, and when the non-contact detection unit detects that the detection target leaves the user's vital sign detection area and leaves the edge transition area, the non-contact detection unit is controlled to be in a stop working state.

[0012] As a further solution of the present invention: when the contact detection unit detects that the detection target is detached from the support of the supporting body, a target departure signal is issued; after the main control unit receives the target departure signal issued by the contact detection unit, and when the non-contact detection unit detects that the detection target is located in the edge transition zone or in the user's vital sign detection zone, the non-contact detection unit is kept in a working state.

[0013] As a further solution of the present invention: the contact sensing assembly includes pressure sensors arranged in an array on a supporting body.

[0014] As a further solution of the present invention: the non-contact detection unit also includes at least one additional non-contact sensing component, and the non-contact detection method of the additional non-contact sensing component is different from the non-contact detection method of the non-contact sensing component; the main control unit obtains the vital sign data detected by the non-contact detection unit, including obtaining data signals obtained by the non-contact sensing component and the additional non-contact sensing component.

[0015] As a further solution of the present invention: the non-contact detection unit also includes at least one additional non-contact sensing component; wherein the additional non-contact sensing component is suitable for being controlled by the main control unit to be in a working state when the main control unit obtains the target in place signal of the contact detection unit.

[0016] As a further solution of the present invention: the non-contact detection unit also includes at least one additional non-contact sensing component; wherein, the additional non-contact sensing component is suitable for controlling the additional non-contact sensing component to be in a stop working state after the main control unit receives the target departure signal sent by the contact detection unit and detects through the non-contact detection unit that the detection target leaves the user's vital sign detection area and leaves the edge transition area.

[0017] Compared with the existing technology, the beneficial effects of this technical solution are as follows: the contact detection unit is designed to detect the presence of the detection target when the detection target is supported by the supporting body. This allows the contact detection unit to be used for subsequent vital sign detection and to determine whether the detection target is in place. This allows the main control unit to intelligently and accurately control the non-contact detection unit to operate. In particular, it can intelligently and accurately control the non-contact sensing component to be in an operational state.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the user vital sign detection area and edge transition area of ​​the detection radar of the present invention; Figure 2 is a circuit block diagram of the present invention; Figure 3 It is a structural schematic diagram of the present invention; Figure 4 2 is another structural schematic diagram of the present invention, in which a schematic diagram of a user's vital sign detection area and an edge transition area is shown in dashed lines; Figure 5 1 is another structural diagram of the present invention, in which the detection area of ​​the additional non-contact sensing component is shown in dashed lines; Figure 6 It is a schematic diagram of the APP user interface loaded on the terminal device.

[0021] The corresponding reference numerals in the accompanying drawings are described as follows: Non-contact detection unit-1, Non-contact sensing component 11, detection radar-111, user vital sign detection area-1111, edge transition area-1112, First control unit-12, Additional non-contact sensing component-13, infrared thermal imager-131, Contact detection unit-2, Supporting body-21, Contact sensor component-22, pressure sensor-221, Second control unit-23, Main control unit-3. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6 , an infant vital sign monitoring system includes a non-contact detection unit 1, a contact detection unit 2 and a main control unit 3.

[0024] The non-contact detection unit 1 includes a non-contact sensing component 11 and a first control unit 12 electrically connected to the non-contact sensing component 11 . The non-contact sensing component 11 has a user's vital sign detection area 1111 for performing non-contact detection on a detection target.

[0025] The contact detection unit 2 includes a second control unit 23, a supporting body 21 located in the user vital sign detection area 1111 for supporting the detection target, and a contact sensing component 22 arranged on the supporting body 21 for detecting the detection target when the supporting body supports the detection target. The second control unit 23 is electrically connected to the contact sensing component 22.

[0026] The main control unit 3 is connected to the first control unit and the second control unit by wired or wireless connection. Figure 2 As shown, the main control unit 3 is connected to the second control unit 23 by wireless connection, and is connected to the first control unit 12 by wired connection.

[0027] The contact detection unit 2 sends a target in place signal when it detects that the detection target is supported by the supporting body 21 through the contact sensing component 22. That is, when the detection target lies or sits on the supporting body 21 at the position corresponding to the contact sensing component 22, the contact detection unit 2 can identify and send a target in place signal.

[0028] The main control unit 3 is configured to obtain a target arrival signal from the contact detection unit 2 and control the non-contact detection unit 1 to be in a working state.

[0029] In some embodiments, the main control unit 3 is configured to obtain a target arrival signal from the contact detection unit 2 and control the non-contact sensing component 11 of the non-contact detection unit 1 to be in a working state.

[0030] The contact detection unit 2 is designed to detect the presence of a detection target (e.g., an infant) when the detection target is supported by the support body 21. This allows the contact detection unit 2 to be used for subsequent vital sign detection and to determine whether the detection target is in place. This allows the main control unit 3 to intelligently and accurately control the operation of the non-contact detection unit 1. In particular, it intelligently and accurately controls the non-contact sensing assembly 11 to be in operation.

[0031] In some embodiments, the non-contact sensing component 11 includes a detection radar 111 , and the user vital sign detection area 1111 is located in the detection area of ​​the detection radar 111 .

[0032] In some embodiments, the supporting body 21 is, for example, a mattress or other object suitable for supporting the detection target when the detection target is sleeping.

[0033] In some embodiments, the contact sensing assembly 22 includes pressure sensors disposed in an array on the supporting body 21 .

[0034] In some embodiments, the pressure sensor is a flexible piezoelectric film sensor.

[0035] In some embodiments, the contact sensor assembly 22 also includes a signal amplifier and a filter. The transient voltage pulse signal output by the piezoelectric film is pre-amplified by the signal amplifier to amplify it to the volt level; then it is band-pass filtered by the filter to filter out high-frequency noise and low-frequency drift, retaining the required frequency band; then it is analog-to-digital converted by the second control unit to convert the analog signal into a digital signal.

[0036] In some embodiments, the main control unit 3 obtains the vital sign data detected by the non-contact detection unit 1 and the vital sign data detected by the contact detection unit 2, and obtains the vital sign data of the detection target after performing data fusion.

[0037] The non-contact detection unit 1 detects vital sign data such as heart rate and respiratory rate.

[0038] The vital sign data detected by the contact detection unit 2 include heart rate, respiratory rate, and body movement.

[0039] In some embodiments, the main control unit 3 performs network configuration, uploads the obtained vital sign data to the cloud platform or enables the user to obtain the above-mentioned vital sign detection data through the terminal device through the network.

[0040] like Figure 6 As shown, in some embodiments, the user obtains the above-mentioned feature detection data through an APP on a terminal device.

[0041] In some embodiments, when the main control unit 3 receives the target departure signal sent by the contact detection unit 2, it sends an alarm signal.

[0042] The alarm signal is, for example, set up through the above-mentioned network configuration so that the user's terminal device can receive a network reminder. For example, when a baby falls out of the bed, a reminder can be obtained in time so that the problem can be dealt with quickly.

[0043] like Figure 1 、 4 As shown, in this embodiment, the non-contact sensing component 11 includes a detection radar 111, and a user vital sign detection area 1111 is located in the detection area of ​​the detection radar 111. An edge transition area 1112 is also formed in the detection area of ​​the detection radar 111 and is located outside the user vital sign detection area 1111.

[0044] In some embodiments, when the contact detection unit 2 detects that the detection target has left the support of the supporting body 21, it sends a target departure signal. After the main control unit 3 receives the target departure signal sent by the contact detection unit 2 and detects through the detection radar 111 of the non-contact detection unit 1 that the detection target has left the user's vital sign detection area 1111 and the edge transition area 1112, it controls the non-contact detection unit 1 to stop working. For example, the detection radar is turned off.

[0045] In some embodiments, when the contact detection unit 2 detects that the detection target has left the support of the supporting body 21, it sends a target departure signal. After the main control unit 3 receives the target departure signal sent by the contact detection unit 2, and when the detection radar 111 of the non-contact detection unit 1 detects that the detection target is located in the edge transition zone 1112 or in the user's vital sign detection zone 1111, the non-contact detection unit 1 is kept in an operating state. For example, the detection radar is kept turned on.

[0046] This can better cope with special situations where the baby needs to leave the bed quickly, such as when the baby falls out of bed or the mother temporarily picks up the baby to comfort and coax him to sleep. It can reduce the frequent switching of the non-contact detection unit and make the control more intelligent.

[0047] By forming different zones within the detection range of the detection radar, the judgment of the baby's condition can be further subdivided, and the user's vital sign detection zone can be set in the more accurate central area of ​​the detection radar, and the edge transition zone can be set in the edge area with lower accuracy, so that accurate detection can be achieved during vital sign detection. In the edge area, only the presence of the detection target needs to be detected, which is more conducive to the distribution of detection accuracy and weight.

[0048] In this embodiment, the non-contact detection unit 1 further includes at least one additional non-contact sensing component 13. The non-contact detection method of the additional non-contact sensing component 13 differs from the non-contact detection method of the non-contact sensing component 11. The main control unit 3 acquires the vital sign data detected by the non-contact detection unit 2, including acquiring data signals acquired by the non-contact sensing component 11 and the additional non-contact sensing component 13.

[0049] In some embodiments, the additional non-contact sensing component 13 includes an infrared thermal imager 131 for obtaining at least surface temperature data of the detection target.

[0050] The infrared thermal imager 131, the detection radar 111, and the pressure sensor 221 form a non-invasive multi-dimensional detection system, such as the follow-up contact detection of the pressure sensor 221 in combination with the mattress and in contact with the detection target, the active electromagnetic wave detection after the active emission and echo of the detection radar 111, and the passive reception detection after the infrared thermal imager 131 obtains the thermal infrared rays actively emitted by the detection target, which is more conducive to the accurate and comprehensive acquisition of vital sign data.

[0051] In some embodiments, the additional non-contact sensing component 13 is adapted to be controlled by the main control unit 3 to be in a working state when the main control unit 3 obtains the target arrival signal from the contact detection unit 2 .

[0052] In some embodiments, the additional non-contact sensing assembly 13 is adapted to stop operating when the main control unit 3 receives a target departure signal from the contact detection unit 2 and the detection radar 111 of the non-contact detection unit 1 detects that the target has left the user's vital sign detection zone 1111 and the edge transition zone 1112. This provides more intelligent overall control.

[0053] During intelligent control, the user vital sign detection area 1111 and the edge transition area 1112 formed by the detection radar 111 can better cope with special bed leaving situations with rapid return, thereby reducing the impact of frequent preheating of the infrared thermal imager.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A baby vital sign monitoring system, characterized in that: include The non-contact detection unit includes a non-contact sensing component and a first control unit electrically connected to the non-contact sensing component, wherein the non-contact sensing component has a user's vital sign detection area for performing non-contact detection on a detection target; The contact detection unit includes a second control unit, a supporting body located in the user's vital sign detection area and used to support the detection target, and a contact sensor component arranged on the supporting body and used to detect the detection target when the supporting body supports the detection target, and the second control unit is electrically connected to the contact sensor component; A main control unit is connected to the first control unit and the second control unit by wired or wireless connection. Wherein, the contact detection unit sends a target arrival signal when it detects that the detection target is supported by the supporting body; The main control unit is configured to obtain a target arrival signal from the contact detection unit and control the non-contact detection unit to be in a working state.

2. The infant vital sign monitoring system according to claim 1, characterized in that: The main control unit is configured to obtain a target arrival signal of the contact detection unit and control a non-contact sensing component of the non-contact detection unit to be in a working state.

3. The infant vital sign monitoring system according to claim 1 or 2, characterized in that: The non-contact sensing component includes a detection radar, and the user's physical sign detection area is located in the detection area of ​​the detection radar.

4. The infant vital sign monitoring system according to claim 3, characterized in that: An edge transition zone is also formed in the detection zone of the detection radar and is located outside the user's vital sign detection zone.

5. The infant vital sign monitoring system according to claim 4, characterized in that: When the contact detection unit detects that the detection target is separated from the support of the support body, a target departure signal is sent; After the main control unit receives the target leaving signal sent by the contact detection unit, and when the non-contact detection unit detects that the detection target leaves the user's vital sign detection area and leaves the edge transition area, the non-contact detection unit is controlled to be in a stop working state.

6. The infant vital sign monitoring system according to claim 4 or 5, characterized in that: When the contact detection unit detects that the detection target is separated from the support of the support body, a target departure signal is sent; After the main control unit receives the target leaving signal sent by the contact detection unit, and when the non-contact detection unit detects that the detection target is located in the edge transition area or in the user's vital sign detection area, the non-contact detection unit is kept in a working state.

7. The infant vital sign monitoring system according to claim 1, characterized in that: The contact sensing assembly includes pressure sensors arranged in an array on a supporting body.

8. The infant vital sign monitoring system according to claim 1 or 2 or 4 or 5 or 7, characterized in that: The non-contact detection unit further includes at least one additional non-contact sensing component, and the non-contact detection method of the additional non-contact sensing component is different from the non-contact detection method of the non-contact sensing component; The main control unit acquires the vital sign data detected by the non-contact detection unit, including acquiring data signals acquired by the non-contact sensing component and the additional non-contact sensing component.

9. The infant vital sign monitoring system according to claim 2, characterized in that: The non-contact detection unit further includes at least one additional non-contact sensing component; The additional non-contact sensing component is suitable for being controlled by the main control unit to be in a working state when the main control unit obtains the target arrival signal of the contact detection unit.

10. The infant vital sign monitoring system according to claim 4 or 5, characterized in that: The non-contact detection unit further includes at least one additional non-contact sensing component; Among them, the additional non-contact sensing component is suitable for controlling the additional non-contact sensing component to be in a stop working state after the main control unit receives the target departure signal sent by the contact detection unit and detects through the non-contact detection unit that the detection target leaves the user's vital sign detection area and leaves the edge transition area.

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