A neonatal data measurement acquisition device
By integrating a newborn data measurement device with a weighing sensor and a body length measurement component, the difficulty of newborn data measurement and collection has been solved, enabling rapid and accurate collection of multiple data points and improving measurement efficiency and comfort.
Patent Information
- Application Number
- CN202610269482.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-06
- Publication Date
- 2026-05-29
AI Technical Summary
Newborn data measurement and collection is a challenging task, requiring multiple data measurements to be performed in steps, which is time-consuming and prone to measurement errors, affecting measurement efficiency and newborn comfort.
Design an integrated neonatal data measurement and acquisition device that combines a weighing sensor, a body length measurement component, and an integrated probe gun to achieve integrated measurement of multiple data. Utilize a transmission screw to drive a displacement plate, a pressure sensor, and a distance sensor in conjunction with a signal conditioning circuit to ensure accurate data acquisition.
It enables rapid and accurate collection of multiple newborn physiological data, reduces operational steps, improves measurement efficiency and comfort, and reduces measurement errors.
Smart Images

Figure CN122096739A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of physical examination data measurement device technology, specifically a newborn data measurement and acquisition device. Background Technology
[0002] Newborns' vital signs and growth and development data (such as height, weight, head circumference, chest circumference, body temperature, heart rate, respiration, blood pressure, etc.) are key indicators for assessing their health status and growth and development level. Accurate measurement of these data is of great significance for the early detection, diagnosis, and intervention of neonatal diseases. Because newborns' physical functions are not yet fully mature, their physiological values are relatively small, and they have poor cooperation, this makes the data measurement and collection work highly difficult and unique.
[0003] In existing technologies, there are many inconveniences in newborn data measurement and collection. For example, height cannot be measured while the newborn is standing, unlike adults; body temperature cannot be measured by the newborn clenching their arms; head circumference and chest circumference measurements usually require at least two people to complete, which is cumbersome and prone to measurement errors due to the newborn's lack of cooperation. In addition, the measurement of multiple data points needs to be carried out in steps, which is time-consuming and increases the newborn's discomfort and the probability of crying, which is not conducive to the efficient and accurate carrying out of measurement work. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a newborn data measurement and acquisition device that integrates multiple data measurements such as height, weight, and body temperature onto a single device, greatly improving the speed of measuring various newborn data and solving the aforementioned technical problems.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a newborn data measurement and acquisition device, comprising a cabinet, a weighing sensor connected to the top surface of the cabinet by screws, a bed connected to the top of the weighing sensor by screws, a body length measuring component disposed inside the bed, and a front top plate and a rear top plate connected to the top of the bed by screws, a support frame connected to the top of the cabinet by screws, a display mounted on the top of the support frame, and a measurement host connected to the display by wires; The body length measuring component includes a fixed baffle, a transmission screw is rotatably connected to the inside of the fixed baffle near one side, a side block is rotatably connected to one end of the transmission screw, and a displacement plate is threadedly connected to the outer surface of the transmission screw. A pressure sensor and a distance sensor are connected to the outer surface of the displacement plate by screws, an auxiliary pulley is rotatably connected to one end of the displacement plate, and a small geared motor is fixedly connected to the other end of the transmission screw. The front of the bed has a through-cut groove, and the back of the bed has a through-cut cable tray. The upper and lower inner walls of the through-cut groove are in sliding contact with an auxiliary pulley. The cable tray is used to run the wires of the distance sensor and the pressure sensor. When the displacement plate moves, the wires of the distance sensor and the pressure sensor can slide in the cable tray. The back of the displacement plate is connected to a cable clip by screws. The cable clip is used to fix the wires of the distance sensor and the pressure sensor.
[0006] Preferably, a load cell is connected to each of the four corners of the bottom surface of the bed by screws. The signal output terminal of the load cell is connected to the analog signal input interface of the measuring host through a shielded wire. The measuring host has a built-in 16-bit high-precision A / D conversion module.
[0007] Preferably, the signal output terminal of the A / D conversion module of the measuring host is bidirectionally connected to the main control chip of the measuring host; the display is electrically connected to the video output terminal of the measuring host through an HDMI interface or an LVDS interface, and an I2C communication bus is also provided between the measuring host and the display to realize the transmission of display commands and the feedback of touch signals.
[0008] Preferably, the cabinet has a door hinged to the front, and a shelf is fixedly connected to the inner wall of the cabinet. The top surface of the shelf is connected to the measuring host by screws. The measuring host has a DC-DC power module inside, and the power input terminal of the measuring host is electrically connected to the power supply unit inside the cabinet through the DC-DC power module. The power supply unit includes an AC adapter and a backup lithium battery.
[0009] Preferably, the two ends of the fixed baffle are fixedly connected to the inner wall of the bed by screws. The outer surface of the displacement plate has three through holes. The contact ends of pressure sensors are embedded in two of the through holes, and the contact ends of the pressure sensors protrude from the outer surface of the displacement plate. The probe end of a distance measuring sensor is embedded in the other through hole, and the probe end of the distance measuring sensor is flush with the contact end of the pressure sensor.
[0010] Preferably, a power switch and a start switch for a small geared motor are installed on the side of the display. The signal output terminal of the ranging sensor is electrically connected to the digital signal input interface of the measuring host through a differential shielded wire. The differential shielded wire is fixed by a wire clip, extends through a wiring channel into the cabinet, and connects to the measuring host. The signal output terminal of the pressure sensor is electrically connected to the analog signal input interface of the measuring host through a two-core shielded wire. The measuring host has a built-in signal conditioning circuit, which includes a filtering unit and an amplification unit. The filtering unit is used to filter out high-frequency interference in the signals from the ranging sensor and the pressure sensor. The amplification unit is used to amplify the weak analog signal output by the pressure sensor to the 0-5V standard range. The output terminal of the signal conditioning circuit is bidirectionally connected to the main control chip of the measuring host to realize real-time acquisition and processing of ranging and pressure data.
[0011] Preferably, two ear plates are fixedly connected to the top surface of the rear top plate, and two smooth rods are bolted between the two ear plates. Sliding blocks are slidably connected to the outer surfaces of the two smooth rods, and a tape measure is fixedly connected to one side of the sliding block.
[0012] Preferably, a support rod is connected to the top surface of the rear top plate by screws, a bent tube is fixedly connected to the top end of the support rod, a hanging plate is fixedly connected to one end of the bent tube, an integrated detection gun is snapped into the hanging plate, and a contact body temperature probe and a PPG sensor are installed at the front end of the integrated detection gun.
[0013] Preferably, the tail cable of the integrated probe is fixedly connected to an aviation plug female connector, and the side of the cabinet is fixed with an aviation plug male connector by screws. The aviation plug female connector and the aviation plug male connector are detachably plugged in and connected, and the aviation plug male connector is electrically connected to the multi-channel sensor interface of the measurement host through a multi-core shielded wire. The multi-core shielded wire contains four signal lines, two of which are used to transmit the analog signal of the contact body temperature probe and the digital signal of the PPG sensor, respectively, and the other two are used to provide 5V DC power to the integrated probe. The measurement host has a built-in body temperature signal acquisition module and a heart rate and respiratory signal processing module. The body temperature signal acquisition module is connected to the contact body temperature probe signal and is used to convert the resistance change signal output by the probe into a temperature value. The heart rate and respiratory signal processing module is connected to the PPG sensor signal and is used to filter and detect the peak value of the PPG photoplethysmography signal to calculate the heart rate and respiratory rate values. The measurement host can synchronously transmit body temperature, heart rate, and respiratory data to the display for real-time display through the I2C communication bus.
[0014] Compared with the prior art, the present invention provides a newborn data measurement and acquisition device, which has the following beneficial effects: 1. This invention offers comprehensive measurement functions and high data accuracy, enabling one-stop collection of multiple key physiological data for newborns, including weight, body length, head circumference, chest circumference, body temperature, and heart rate. Weight measurement relies on weighing sensors at the four corners of the bed to synchronously sense weight, combined with a built-in 16-bit high-precision A / D conversion module in the main unit, effectively avoiding single-point measurement errors. Body length measurement uses a transmission screw to drive a displacement plate for smooth movement, combined with contact feedback from a pressure sensor and distance acquisition from a distance sensor, along with filtering and amplification processing by a signal conditioning circuit, ensuring the accuracy and reliability of body length data. Body temperature and heart rate measurement utilize an integrated probe's contact temperature probe and PPG sensor, which are converted and calculated by a dedicated signal processing module to achieve accurate capture of multi-dimensional data, eliminating the need for frequent changes in measuring equipment and significantly improving the efficiency of newborn physical examinations.
[0015] 2. This invention is highly convenient to operate and adapted to the physiological characteristics of newborns, taking into account both practicality and safety. Weight and length measurements do not require frequent movement of the newborn; data collection can be completed automatically simply by placing and positioning the newborn. Head circumference and chest circumference measurements are performed by using a sliding tape measure assembly, which allows for flexible adjustment of the measurement position, making the operation simple and efficient. The integrated probe design is lightweight, with the probe fitting snugly against the newborn's skin without causing discomfort, and it is also equipped with a hanging plate for easy storage. Attached Figure Description
[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the cabinet after the cabinet door has been removed in this invention; Figure 3 This is an exploded disassembly diagram of the body length measuring component in this invention; Figure 4 This is a first-view perspective perspective view of the displacement plate, pressure sensor, and distance sensor in this invention; Figure 5 This is a perspective view of the displacement plate, pressure sensor, and distance sensor from a second viewpoint in this invention. Figure 6 This is a perspective view of the rear top plate, ear plate, smooth rod, sliding block, and leather tape measure in this invention; Figure 7 This is a three-dimensional cross-sectional view of the support rod, hanging plate, and integrated detection gun in this invention.
[0017] The components include: 1. Cabinet; 2. Weighing sensor; 3. Bed; 4. Body length measuring component; 41. Fixed baffle; 42. Transmission screw; 43. Side block; 44. Displacement plate; 45. Pressure sensor; 46. Distance sensor; 47. Auxiliary pulley; 48. Small geared motor; 5. Front top plate; 6. Rear top plate; 7. Support frame; 8. Display; 9. Measuring host; 10. Cabinet door; 11. Shelf; 12. Slide rail; 13. Cable tray; 14. Cable clip; 15. Ear plate; 16. Smooth rod; 17. Sliding block; 18. Measuring tape; 19. Support rod; 20. Bend; 21. Hanging plate; 22. Integrated detection gun; 221. Contact body temperature probe; 222. PPG sensor. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Please see Figures 1-7 A newborn data measurement and acquisition device includes a cabinet 1, a weighing sensor 2 connected to the top surface of the cabinet 1 by screws, a bed 3 connected to the top of the weighing sensor 2 by screws, a body length measuring component 4 installed inside the bed 3, and a front top plate 5 and a rear top plate 6 connected to the top of the bed 3 by screws. A support frame 7 is connected to the top of the cabinet 1 by screws, and a display 8 is installed at the top of the support frame 7. The display 8 is connected to a measuring host 9 by wires. The body length measuring component 4 includes a fixed baffle 41. A transmission screw 42 is rotatably connected to the inside of the fixed baffle 41 near one side. A side block 43 is rotatably connected to one end of the transmission screw 42. A displacement plate 44 is threadedly connected to the outer surface of the transmission screw 42. A pressure sensor 45 and a distance sensor 46 are connected to the outer surface of the displacement plate 44 by screws. An auxiliary pulley 47 is rotatably connected to one end of the displacement plate 44. A small geared motor 48 is fixedly connected to the other end of the transmission screw 42. A sliding groove 12 is provided through the front of the bed body 3, and a wiring groove 13 is provided through the back of the bed body 3. An auxiliary pulley 47 is slidably contacted on the upper and lower inner walls of the sliding groove 12. The wires of the distance sensor 46 and the pressure sensor 45 are inserted inside the wiring groove 13. When the displacement plate 44 moves, the wires of the distance sensor 46 and the pressure sensor 45 can slide in the wiring groove 13. A wire clip 14 is connected to the back of the displacement plate 44 by screws. The wire clip 14 is used to fix the wires of the distance sensor 46 and the pressure sensor 45.
[0020] Furthermore, a load cell 2 is connected to each of the four corners of the bottom surface of the bed 3 by screws. The signal output end of the load cell 2 is connected to the analog signal input interface of the measuring host 9 through a shielded wire. The measuring host 9 has a built-in sixteen-bit high-precision A / D conversion module.
[0021] Furthermore, the signal output terminal of the A / D conversion module of the measuring host 9 is bidirectionally connected to the main control chip of the measuring host 9; the display 8 is electrically connected to the video output terminal of the measuring host 9 through an HDMI interface or an LVDS interface, and an I2C communication bus is also provided between the measuring host 9 and the display 8 to realize the transmission of display commands and the feedback of touch signals.
[0022] When collecting various data of a newborn, the first step is to measure its weight. After the newborn is placed on the bed 3, the weighing sensors 2 located near the four corners of the bottom surface of the bed 3 will simultaneously sense the newborn's weight and generate corresponding analog signals. These analog signals are transmitted through shielded wires to the analog signal input interface of the measuring host 9 on the inner shelf 11 of the cabinet 1. The 16-bit high-precision A / D conversion module built into the measuring host 9 converts the received analog signals into digital signals. The digital signals are then transmitted to the main control chip of the measuring host 9 for processing and calculation to obtain accurate weight data. At the same time, the measuring host 9 transmits the weight data in the form of video signals to the display 8 at the top of the support frame 7 through the HDMI interface or LVDS interface, and realizes the transmission of display instructions through the I2C communication bus. Finally, the weight data is displayed on the display 8 in real time, completing the weighing process of the newborn.
[0023] Furthermore, a cabinet door 10 is hinged to the front of the cabinet 1, and a shelf 11 is fixedly connected to the inner wall of the cabinet 1. The top surface of the shelf 11 is connected to the measuring host 9 by screws. The measuring host 9 is equipped with a DC-DC power module, and the power input terminal of the measuring host 9 is electrically connected to the power supply unit inside the cabinet 1 through the DC-DC power module. The power supply unit includes an AC adapter and a backup lithium battery.
[0024] The upper surface of the shelf 11 is used to install the measuring host 9, while the space between the lower surface of the shelf 11 and the bottom of the cabinet 1 can be used to store some newborn care products, such as disposable mattresses, which can be laid on the upper surface of the bed 3 to keep it clean and hygienic.
[0025] Furthermore, the two ends of the fixed baffle 41 are fixedly connected to the inner wall of the bed 3 by screws. The outer surface of the displacement plate 44 has three through holes. The contact ends of the pressure sensor 45 are embedded in two of the through holes, and the contact ends of the pressure sensor 45 protrude from the outer surface of the displacement plate 44. The probe end of the distance measuring sensor 46 is embedded in the other through hole, and the probe end of the distance measuring sensor 46 is flush with the contact end of the pressure sensor 45.
[0026] Furthermore, a power switch and a start switch for the small geared motor 48 are installed on the side of the display 8. The signal output terminal of the ranging sensor 46 is electrically connected to the digital signal input interface of the measuring host 9 through a differential shielded wire. The differential shielded wire is fixed by the wire clip 14 and extends through the wiring trough 13 to the inside of the cabinet 1 and into the measuring host 9. The signal output terminal of the pressure sensor 45 is electrically connected to the analog signal input interface of the measuring host 9 through a two-core shielded wire. The measuring host 9 has a built-in signal conditioning circuit, which includes a filtering unit and an amplification unit. The filtering unit is used to filter out high-frequency interference in the signals of the ranging sensor 46 and the pressure sensor 45. The amplification unit is used to amplify the weak analog signal output by the pressure sensor 45 to the 0-5V standard range. The output terminal of the signal conditioning circuit is bidirectionally connected to the main control chip of the measuring host 9 to realize real-time acquisition and processing of ranging data and pressure data.
[0027] After the newborn's weight is measured, the operator activates the motor start switch on the side of the display 8 with the newborn's head against the fixed baffle 41 and the body straightened. This activates the small geared motor 48, which drives the transmission screw 42, which is fixedly connected to it, to rotate. Since the transmission screw 42 is threadedly connected to the displacement plate 44, and the auxiliary pulley 47 rotatably connected to one end of the displacement plate 44 slides in contact with the upper and lower inner walls of the groove 12 on the front of the bed 3, the rotation of the transmission screw 42 is converted into a smooth movement of the displacement plate 44 along the length of the bed 3 toward the sole of the newborn's feet. As the displacement plate 44 continues to move, when the contact end of the pressure sensor 45 touches the sole of the newborn's feet, the newborn generates a reaction force on the pressure sensor 45, causing the pressure sensor 45 to generate a corresponding weak analog signal. This weak analog signal is transmitted to the analog signal input interface of the measuring host 9 through a two-core shielded wire. The signal conditioning circuit built into the measuring host 9 first... The filtering unit filters out high-frequency interference in the signal, and then the amplification unit amplifies the weak analog signal to the 0-5V standard range. The amplified signal is then transmitted to the main control chip of the measuring host 9. At the same time, the distance sensor 46, which is flush with the contact end of the pressure sensor 45 on the displacement plate 44, synchronously collects the distance data between itself and the fixed baffle 41. This data is transmitted to the digital signal input interface of the measuring host 9 through a differential shielded wire. The main control chip performs comprehensive processing on the pressure signal and the distance signal. When the pressure sensor 45 continuously receives a stable pressure signal, the distance data collected by the distance sensor 46 is the newborn's body length. Finally, the body length data is processed by the measuring host 9 and synchronously transmitted to the display 8 for real-time display through the I2C communication bus, completing the body length measurement. Meanwhile, a physical scale is also set on the inner bottom surface of the bed 3. By observing the position of the displacement plate 44 on the scale, the newborn's height data can also be observed intuitively.
[0028] Furthermore, two ear plates 15 are fixedly connected to the top surface of the rear top plate 6, and two smooth rods 16 are bolted between the two ear plates 15. Sliding blocks 17 are slidably connected to the outer surfaces of the two smooth rods 16, and a tape measure 18 is fixedly connected to one side of the sliding block 17.
[0029] After measuring the newborn's length, the sliding block 17 is used to move the measuring tape 18 along the length of the two smooth rods 16. This allows the measuring tape 18 to be moved close to the newborn's head or chest. Then, the measuring tape 18 is pulled out to wrap around the newborn's head or chest circumference, thus enabling the measurement of the newborn's head and chest circumference. The overall structure allows the measuring tape 18 to be adjusted in position, thereby enabling the measurement of head and chest circumference.
[0030] Furthermore, a support rod 19 is connected to the top surface of the rear top plate 6 by screws. A bent tube 20 is fixedly connected to the top end of the support rod 19. A hanging plate 21 is fixedly connected to one end of the bent tube 20. An integrated detection gun 22 is snapped into the hanging plate 21. A contact body temperature probe 221 and a PPG sensor 222 are installed at the front end of the integrated detection gun 22.
[0031] Furthermore, the tail cable of the integrated probe 22 is fixedly connected to an aviation plug female connector, and the side of the cabinet 1 is fixed with an aviation plug male connector by screws. The aviation plug female connector and the aviation plug male connector can be detachably plugged in and connected, and the aviation plug male connector is electrically connected to the multi-channel sensor interface of the measurement host 9 through a multi-core shielded wire. The multi-core shielded wire contains four signal lines, two of which are used to transmit the analog signal of the contact body temperature probe 221 and the digital signal of the PPG sensor 222, respectively, and the other two are used to provide 5V DC power to the integrated probe 22. The measurement host 9 has a built-in body temperature signal acquisition module and a heart rate and respiratory signal processing module. The body temperature signal acquisition module is connected to the contact body temperature probe 221 and is used to convert the resistance change signal output by the probe into a temperature value. The heart rate and respiratory signal processing module is connected to the PPG sensor 222 and is used to filter the PPG photoplethysmography signal, detect the peak value, and calculate the heart rate and respiratory rate values. The measurement host 9 can also transmit body temperature, heart rate, and respiratory data to the display 8 for real-time display through the I2C communication bus.
[0032] The staff removes the integrated probe gun 22 from the mounting plate 21, then places the contact temperature probe 221 at the front end of the integrated probe gun 22 onto the newborn's skin, while simultaneously aligning the PPG sensor 222 with areas rich in blood vessels on the newborn's skin (such as fingertips, soles of feet, etc.). The contact temperature probe 221 converts the sensed temperature change into a resistance change signal. This analog signal is transmitted to the multi-channel sensor interface of the measuring host 9 through one signal line of the multi-core shielded wire. The temperature signal acquisition module built into the measuring host 9 converts the resistance change signal into a temperature value. At the same time, the PPG sensor 222 acquires the newborn's photoplethysmography signal and converts it into a digital signal, which is transmitted to the measuring host 9 through another signal line of the multi-core shielded wire. The heart rate and respiratory signal processing module inside the measuring host 9 filters the digital signal, detects peaks, and calculates the heart rate value. Finally, the measuring host 9 transmits the processed temperature data and heart rate data synchronously to the display 8 via the I2C communication bus, where they are displayed in real time, completing the measurement of the newborn's temperature and heart rate.
[0033] During use, the staff places the newborn on the bed 3. The weight is detected by the weighing sensors 2 at the four corners, which generate analog signals. After being converted and processed by the 16-bit high-precision A / D conversion module of the measuring host 9, the weight data is displayed in real time on the display 8, completing the weight measurement. Then, the newborn's head is placed against the fixed baffle 41 and the body is straightened. The small reduction motor 48 is started, which drives the transmission screw 42 to rotate, causing the displacement plate 44 to move towards the sole of the newborn's feet. When the pressure sensor 45 contacts the sole of the foot and generates a stable pressure signal, the distance data between the distance sensor 46 and the fixed baffle 41 is the body length. After being processed by the measuring host 9, it is displayed on the display 8. At the same time, the body length can also be measured by the physical scale on the bottom surface inside the bed 3. After observation, the body length is measured. Next, the sliding block 17 is slid to slide on the light rod 16, thereby adjusting the measuring tape 18 to a position close to the newborn's head or chest. The measuring tape 18 is then pulled out to wrap around the head or chest circumference to complete the head and chest circumference measurements. The integrated probe 22 is removed from the hanging plate 21, and the contact temperature probe 221 is placed against the newborn's skin. The PPG sensor 222 is aligned with the area rich in blood vessels in the skin. The resistance change signal of the contact temperature probe 221 is converted into a temperature value by the body temperature signal acquisition module. The photoplethysmography signal of the PPG sensor 222 is filtered and peak detected by the heart rate and respiratory signal processing module to calculate the heart rate value. The relevant data is displayed in real time on the display 8, completing the body temperature and heart rate measurements.
[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A newborn data measurement and acquisition device, characterized in that: The device includes a cabinet (1), a weighing sensor (2) connected to the top surface of the cabinet (1) by screws, a bed (3) connected to the top of the weighing sensor (2) by screws, a body length measuring component (4) is provided inside the bed (3), and a front top plate (5) and a rear top plate (6) are connected to the top of the bed (3) by screws. A support frame (7) is connected to the top of the cabinet (1) by screws, and a display (8) is installed at the top of the support frame (7). The display (8) is connected to a measuring host (9) by wires. The body length measuring component (4) includes a fixed baffle (41), a transmission screw (42) is rotatably connected to the inside of the fixed baffle (41) near one side, a side block (43) is rotatably connected to one end of the transmission screw (42), and a displacement plate (44) is threadedly connected to the outer surface of the transmission screw (42). A pressure sensor (45) and a distance sensor (46) are connected to the outer surface of the displacement plate (44) by screws, and an auxiliary pulley (47) is rotatably connected to one end of the displacement plate (44), and a small geared motor (48) is fixedly connected to the other end of the transmission screw (42). The front of the bed (3) is provided with a sliding groove (12), and the back of the bed (3) is provided with a wiring groove (13). The upper and lower inner walls of the sliding groove (12) are in sliding contact with an auxiliary pulley (47). The wiring groove (13) is used to insert the wires of the distance sensor (46) and the pressure sensor (45). When the displacement plate (44) moves, the wires of the distance sensor (46) and the pressure sensor (45) can slide in the wiring groove (13). The back of the displacement plate (44) is connected to a wire clip (14) by screws. The wire clip (14) is used to fix the wires of the distance sensor (46) and the pressure sensor (45).
2. The neonatal data measurement and acquisition device according to claim 1, characterized in that: The bottom surface of the bed (3) is connected to a weighing sensor (2) near the four corners by screws. The signal output end of the weighing sensor (2) is connected to the analog signal input interface of the measuring host (9) through a shielded wire. The measuring host (9) has a built-in sixteen-bit high-precision A / D conversion module.
3. The neonatal data measurement and acquisition device according to claim 2, characterized in that: The signal output terminal of the A / D conversion module of the measuring host (9) is bidirectionally connected to the main control chip of the measuring host (9); the display (8) is electrically connected to the video output terminal of the measuring host (9) through an HDMI interface or an LVDS interface, and an I2C communication bus is also provided between the measuring host (9) and the display (8) to realize the transmission of display instructions and the feedback of touch signals.
4. The neonatal data measurement and acquisition device according to claim 1, characterized in that: The cabinet (1) has a cabinet door (10) hinged to the front, and a shelf (11) is fixedly connected to the inner wall of the cabinet (1). The top surface of the shelf (11) is connected to a measuring host (9) by screws. The measuring host (9) is equipped with a DC-DC power module, and the power input terminal of the measuring host (9) is electrically connected to the power supply unit inside the cabinet (1) through the DC-DC power module. The power supply unit includes an AC adapter and a spare lithium battery.
5. A newborn data measurement and acquisition device according to claim 1, characterized in that: The two ends of the fixed baffle (41) are fixedly connected to the inner wall of the bed (3) by screws. The outer surface of the displacement plate (44) has three through holes. The contact end of the pressure sensor (45) is embedded in two of the through holes, and the contact end of the pressure sensor (45) protrudes from the outer surface of the displacement plate (44). The probe end of the distance measuring sensor (46) is embedded in the other through hole, and the probe end of the distance measuring sensor (46) is flush with the contact end of the pressure sensor (45).
6. The neonatal data measurement and acquisition device according to claim 1, characterized in that: The display (8) is equipped with a power switch and a start switch for a small geared motor (48) on its side. The signal output terminal of the distance sensor (46) is electrically connected to the digital signal input interface of the measuring host (9) through a differential shielded wire. The differential shielded wire is fixed by a wire clip (14) and extends through the wiring groove (13) to the inside of the cabinet (1) and into the measuring host (9). The signal output terminal of the pressure sensor (45) is electrically connected to the analog signal input interface of the measuring host (9) through a two-core shielded wire. The measuring host (9) has a built-in signal conditioning circuit, which includes a filtering unit and an amplification unit. The filtering unit is used to filter out high-frequency interference in the signals of the distance sensor (46) and the pressure sensor (45). The amplification unit is used to amplify the weak analog signal output by the pressure sensor (45) to the 0-5V standard range. The output terminal of the signal conditioning circuit is bidirectionally connected to the main control chip of the measuring host (9) to realize the real-time acquisition and processing of distance and pressure data.
7. A newborn data measurement and acquisition device according to claim 1, characterized in that: The top surface of the rear top plate (6) is fixedly connected to two ear plates (15), and two smooth rods (16) are bolted between the two ear plates (15). Sliding blocks (17) are slidably connected to the outer surfaces of the two smooth rods (16), and a leather tape measure (18) is fixedly connected to one side of the sliding block (17).
8. A newborn data measurement and acquisition device according to claim 1, characterized in that: The top surface of the rear top plate (6) is connected to a support rod (19) by screws. A bent pipe (20) is fixedly connected to the top end of the support rod (19). A hanging plate (21) is fixedly connected to one end of the bent pipe (20). An integrated detection gun (22) is snapped into the hanging plate (21). A contact body temperature probe (221) and a PPG sensor (222) are installed at the front end of the integrated detection gun (22).
9. A neonatal data measurement and acquisition device according to claim 9, characterized in that: The tail cable of the integrated probe (22) is fixedly connected to an aviation plug female connector, and the side of the cabinet (1) is fixed with an aviation plug male connector by screws. The aviation plug female connector and the aviation plug male connector are detachably plugged in and connected, and the aviation plug male connector is electrically connected to the multi-channel sensor interface of the measurement host (9) through a multi-core shielded wire. The multi-core shielded wire contains four signal lines, two of which are used to transmit the analog signal of the contact body temperature probe (221) and the digital signal of the PPG sensor (222) respectively, and the other two are used to provide 5V to the integrated probe (22). DC power supply; the measurement host (9) has a built-in body temperature signal acquisition module and a heart rate and respiratory signal processing module. The body temperature signal acquisition module is connected to the contact body temperature probe (221) and is used to convert the resistance change signal output by the probe into a temperature value. The heart rate and respiratory signal processing module is connected to the PPG sensor (222) and is used to filter the PPG photoplethysmography signal, detect the peak value, and calculate the heart rate and respiratory frequency values. The measurement host (9) can transmit body temperature, heart rate, and respiratory data synchronously to the display (8) for real-time display via the I2C communication bus.
