CN202161043U - Nursing bed for infants - Google Patents

Abstract

An infant nursing bed relates to a baby bed capable of real-time monitoring of the baby's state and having an alarm function. It includes an infant bed body with a fence, a temperature sensor, a humidity sensor, a pyroelectric sensor, a gas sensor, and a controller connected to the above-mentioned sensors, and the controller is connected to an alarm. devices and displays. The utility model can comprehensively detect problems such as bedwetting, spitting up milk, and safety of infants and young children, and can also detect ambient temperature; it has the prompt function of voice and display; and adopts battery power supply, which improves the safety of the crib. The utility model can detect the state of infants and young children in real time, and reduces the labor intensity of caregivers.

Description

baby care bed

technical field

The utility model relates to an infant bed with an alarm function, which can monitor the state of the infant in real time.

Background technique

Infants and young children do not have the basic ability to take care of themselves and need the care of adults all the time. Infants and young children will have problems such as bedwetting, spitting up milk, and moving out of the safe range. These problems will seriously affect the health of infants and young children, so taking care of infants and young children, especially babies, will involve a lot of energy. In addition, temperature is also an important factor affecting the health of infants and young children, so we must always pay attention to the ambient temperature. At present, there are many items for automatic monitoring of infants and young children, such as bedwetting alarms, temperature alarms, safety alarms, and milk spitting alarms, but these alarms are separated and need to be set separately, which is inconvenient to use. Therefore, in most cases Under these conditions, infants and young children do not receive comprehensive automatic monitoring.

Utility model content

The purpose of the present invention is to provide an infant care bed, which can comprehensively monitor issues such as bedwetting, spitting up milk, temperature, and safety.

In order to achieve the above object, the utility model has taken the following technical solutions:

An infant care bed, comprising an infant bed body provided with a fence, a temperature sensor, a humidity sensor, a pyroelectric sensor, a gas sensor, and a controller connected to the above-mentioned sensors are arranged in the bed body, And the controller is connected with an alarm and a display; wherein, the temperature sensor, the pyroelectric sensor, the gas sensor, and the display are arranged on the fence of the bed body, and the humidity sensor is arranged on the bed board of the bed body; The device is powered by a battery mounted on the bed.

The temperature sensor, humidity sensor, pyroelectric sensor, and gas sensor adopt integrated temperature sensor 18B20, integrated humidity sensor SHT11, pyroelectric detection circuit and its RD-622 pyroelectric probe, and integrated odor sensor M201 respectively; The device adopts a MEGA16 single-chip microcomputer, the display adopts an LGM12864 liquid crystal display, and the alarm adopts a voice circuit composed of an integrated voice chip ISD2500 and its peripheral circuits and loudspeakers; wherein, the output terminal of the integrated temperature sensor 18B20 is connected to the 37 pins of the MEGA16 single-chip microcomputer , the output terminal of the integrated humidity sensor SHT11 is connected to pin 39 and pin 40 of the MEGA16 microcontroller, the output terminal of the pyroelectric detection circuit is connected to pin 34 of the MEGA16 microcontroller, the output terminal of the integrated odor sensor M201 is connected to pin 35 and pin 36 of the MEGA16 microcontroller, LGM12864 The 1~17 pins of the LCD screen are connected to the 33 pins, 18~12 pins and 9~1 pins of the MEGA16 MCU, and the 1~10 pins and 27 pins of the voice chip ISD2500 are connected to the 29~19 pins of the MEGA16 MCU.

The battery adopts a 12-volt storage battery and is equipped with a charger. The voltage conversion chip is used to complete the conversion from DC voltage 12 V to DC voltage 5 V. The model of the voltage conversion chip is LM7805, and the 5-volt DC voltage is provided for the single-chip microcomputer and other circuits. power supply.

The utility model has the advantages that: the utility model concentrates the temperature sensor, the humidity sensor, the gas sensor and the pyroelectric sensor on the bed of the infant, especially the main activity place of the infant, and can comprehensively detect the bedwetting and spit-up of the infant. , safety and other issues, it can also detect the ambient temperature; it has the prompt function of voice and display; and it is powered by batteries, which improves the safety of the baby bed. The utility model can detect the status of infants and young children in real time, and reduces the labor intensity of caregivers.

Description of drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the infant care bed of the present invention.

Fig. 2 is the electrical control block diagram of the infant care bed of the utility model.

Fig. 3 is the schematic circuit diagram of a preferred embodiment of the utility model infant care bed.

In the figure: 1. Temperature sensor, 2. Pyroelectric sensor, 3. Gas sensor, 4. Speaker, 5. LCD display, 6. Fence, 7. Bed board, 8. Humidity sensor, 9. Controller, 10. Battery .

Detailed ways

Below in conjunction with accompanying drawing and preferred embodiment, the infant care bed will be described in further detail.

Infant bed among the utility model adopts a kind of shaking bed (as Fig. 1) that fence 6 is arranged. Install a temperature sensor 1, a pyroelectric sensor 2, a gas sensor 3, a liquid crystal display 5 and a speaker 4 in the voice circuit on the head of the bed; install a humidity sensor 8 on the bed board 7; place a controller 9 and a storage battery under the bed 10.

As shown in Figure 2, the above-mentioned temperature sensor, pyroelectric sensor, gas sensor, and humidity sensor are connected to the input of the controller. The controller receives bedwetting, milk spitting, infant activity and temperature signals, and the controller outputs an alarm signal according to the program setting. , the alarm signal includes the display information for the display circuit and the control signal for the voice circuit.

The controller here adopts MEGA16 single-chip microcomputer (U2), the temperature sensor adopts integrated temperature sensor 18B20 (U4), the humidity sensor adopts integrated humidity sensor SHT11 (U3), and the pyroelectric sensor adopts RD-622 pyroelectric probe (U6) Pyroelectric detection circuit, gas sensor uses integrated odor sensor M201 (U5), voice circuit uses integrated voice chip ISD2500 (U8) and its peripheral circuits and speakers, display circuit uses LGM12864 liquid crystal display (S) and its peripheral circuits. Among them, the output terminal of integrated temperature sensor 18B20 is connected to pin 37 of MEGA16 single-chip microcomputer, the output terminal of integrated humidity sensor SHT11 is connected to pin 39 and pin 40 of MEGA16 single-chip microcomputer, the output terminal of pyroelectric detection circuit is connected to pin 34 of MEGA16 single-chip microcomputer, and the integrated odor sensor The output terminal of M201 is connected to 35 pins and 36 pins of MEGA16 MCU, 1~17 pins of LGM12864 LCD are connected to 33 pins, 18~12 pins and 9~1 pins of MEGA16 MCU, 1~10 pins and 27 pins of voice chip ISD2500 The pins are connected to the 29~19 pins of the MEGA16 microcontroller. The above specific circuit is shown in Figure 3.

In this embodiment, a 12V battery is used as the power supply, and the output of the 12V battery is passed through a DC/DC converter (U1) to obtain a 5V power supply and sent to each device. Among them, the DC/DC converter (U1) adopts LM7805. In this embodiment, a 12V charger is used to charge the storage battery.

The functions of each device in the utility model are: the temperature sensor mainly detects the ambient temperature; the humidity sensor mainly detects whether the infant has bedwetting behavior, if the bedwetting occurs, the humidity value will exceed the set value, and the alarm function will be activated; the pyroelectric sensor is The infrared pyroelectric effect is used to sense the heat of the human body to detect whether the infant is within the specified range. If it deviates from the specified range, it may be very dangerous. At this time, the alarm function must be activated; the gas sensor is mainly used to detect whether the milk spit occurs. , if it happens at this time will start the alarm function. The alarm function includes a display circuit and a voice circuit. The display circuit can display temperature information, humidity information and odor information; when the humidity exceeds the standard, when the phenomenon of spitting milk occurs, and when the body deviates from the specified range, the controller controls the voice circuit to emit a corresponding prompt sound . Various prompting sounds in the voice circuit are recorded and stored in the voice chip ISD2500 in advance, and the MEGA16 single-chip microcomputer controls the voice chip ISD2500 to emit corresponding prompting sounds according to various situations. Among them, the 20-29 pins of the MEGA16 single-chip microcomputer (U2) are used to select the pre-recorded prompt sound, the 19 pins are high level to start playback, and the 19 pins are low level to stop playback. the

Claims (3)

1. An infant care bed, comprising an infant bed body provided with a fence, characterized in that: a temperature sensor, a humidity sensor, a pyroelectric sensor, a gas sensor are arranged in the bed body, and the above-mentioned The controller connected to the sensor, and the controller is connected with an alarm and a display; wherein, the temperature sensor, the pyroelectric sensor, the gas sensor, and the display are arranged on the fence of the bed, and the humidity sensor is arranged on the bed on the bed; the above-mentioned devices are powered by batteries installed on the bed. 2. An infant care bed according to claim 1, characterized in that: said temperature sensor, humidity sensor, pyroelectric sensor, and gas sensor respectively use an integrated temperature sensor 18B20, an integrated humidity sensor SHT11, and a pyroelectric sensor. Detection circuit and its RD-622 pyroelectric probe, integrated odor sensor M201; the controller adopts MEGA16 single-chip microcomputer, the display adopts LGM12864 liquid crystal display screen, and the alarm adopts integrated voice chip ISD2500 and its peripheral circuit and speaker A voice circuit composed of; among them, the output terminal of the integrated temperature sensor 18B20 is connected to the 37 pin of the MEGA16 single-chip microcomputer, the output terminal of the integrated humidity sensor SHT11 is connected to the 39 pin and 40 pin of the MEGA16 single-chip microcomputer, and the output terminal of the pyroelectric detection circuit is connected to the 34 pin of the MEGA16 single-chip microcomputer Pin, the output terminal of the integrated odor sensor M201 is connected to the 35-pin and 36-pin of the MEGA16 single-chip microcomputer, the 1-17 pin of the LGM12864 LCD is connected to the 33-pin, 18-12 pin and 9-1 pin of the MEGA16 single-chip microcomputer, 1 pin of the voice chip ISD2500 ~10 pins and 27 pins are connected to 29~19 pins of MEGA16 MCU. 3. An infant care bed according to claim 2, characterized in that: the battery is a 12-volt storage battery equipped with a charger, and the DC voltage conversion chip LM7805 is used to convert its 12-volt voltage into a 5-volt battery. Power Output.

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