CN110227011A - Wireless power automatic alarm diaper - Google Patents

Abstract

The invention relates to the technical field of diapers, specifically wireless power supply and automatic alarm diapers, including a diaper body and a wireless charging device, the outer wall of the diaper body is provided with a storage bag, and the inside of the storage bag is placed The chip box is detected, and the wireless charging device includes a wireless charging board and a charging line arranged on one side of the wireless charging board. In the wireless power supply automatic alarm diaper, the detection chip box presses the pressure plate downward from the pressing groove through its own gravity, so that the limit block is away from the side of the chuck, and the sliding column is pushed out by the elasticity of the compression spring itself. , and then drives the two clamping plates to clamp, which is convenient for clamping and fixing the detection chip box, improves charging efficiency, and is easy to operate and easy to use. The detection chip box is placed through the set placement bag. On the one hand, it can The detection chip box is protected, and on the other hand, it can prevent the temperature and humidity sensor from falling off and improve the detection accuracy.

Description

Wireless power supply automatic alarm diaper

technical field

The invention relates to the technical field of diapers, in particular to diapers with wireless power supply and automatic alarm.

Background technique

The use of diapers greatly facilitates special occasions such as infant care and intensive care. However, at present, it is necessary to manually check whether diapers need to be replaced, which causes a lot of inconvenience and delays in replacement. A simple and easy method is to use temperature and humidity The sensor is used to monitor whether the diaper needs to be replaced. However, the current common wearable temperature and humidity sensor needs to be adhered to the diaper through a medical application, as shown in Figure 2. The baby's self-control is poor, and it is fixed by adhesion. The temperature and humidity sensor is easy to fall off, making it impossible to detect data. At the same time, the temperature and humidity sensor needs to be powered by a battery, and the battery charging is troublesome and inconvenient to use. In view of this, we propose a wireless power supply automatic alarm diaper.

Contents of the invention

The purpose of the present invention is to provide wireless power supply and automatic alarm diapers to solve the problems in the above-mentioned background technology that the temperature and humidity sensor fixed by adhesion is easy to fall off, resulting in the inability to detect data and troublesome battery charging and inconvenient use.

In order to achieve the above purpose, the present invention provides a wireless power supply automatic alarm diaper, including a diaper body and a wireless charging device, the outer wall of the diaper body is provided with a storage bag, and a detection chip box is placed inside the storage bag , the wireless charging device includes a wireless charging board and a charging line arranged on one side of the wireless charging board, a pair of clamping parts are symmetrically arranged on the top of the wireless charging board, and the clamping parts include a clamping plate. The bottom of the clamping plate is equipped with a slide bar, the bottom of the slide bar is integrally formed with a straight bar, the slide bar and the straight bar are vertically arranged, one end of the straight bar is integrally formed with a chuck, and the straight bar is integrally formed. A sliding column is installed at the bottom of the rod, and a compression spring is provided on one side of the sliding column. The wireless charging board includes a box body and a plate installed on the top of the box body. A pressing mechanism is installed on the inner wall of the box body , the pressing mechanism includes a mounting plate, the center of the mounting plate is provided with a pressing rod, the top of the pressing rod is provided with a pressing plate, and the two sides of the mounting plate are respectively provided with slides that are slidably matched with the sliding columns. The side of the mounting plate close to the chute protrudes upwards to limit the limit block, and the two sides of the bottom of the mounting plate are respectively installed with elastic seats.

Preferably, the clamping plate is arc-shaped, and a protective pad is installed on the inner wall of the clamping plate.

Preferably, a pressing groove matching the size of the pressing plate is formed at the center of the top of the plate body, and adjustment grooves are respectively formed on both sides of the pressing groove to slidably cooperate with the slide bar.

Preferably, the elastic seat includes an outer cylinder welded on the inner wall of the box, a return spring is installed inside the outer cylinder, and an inner sleeve that is slidably fitted with the outer cylinder is installed on the top of the return spring. rod, and the top of the inner rod is welded to the bottom end of the mounting plate.

As a preference, a pair of installation strips are bent on one side of the placement bag, and the installation strips are fixed on the outside of the diaper body by stitching, and a gap groove is left between the two installation strips. Both sides of the inner wall of the bag are respectively provided with a pair of limit bars for fixing the detection chip box.

Preferably, the top of the storage bag is provided with an overturned pocket, the inner wall of the overturned pocket is sewn and fixed with buckles, and the outer wall of the placement bag is provided with a slot that snaps and fits with the buckles.

Preferably, the diaper body includes a skin-friendly layer, a flow guide layer, a quick-absorbing layer, a leak-proof layer and a breathable layer arranged sequentially from top to bottom.

Preferably, a wireless charging module is also arranged inside the wireless charging board.

Preferably, the detection chip box includes a chassis, an inner ring is provided at the center of the inner wall of the chassis, and a plurality of through holes are opened on the inner wall of the inner ring, and a positioning ring is inserted and fitted on the inner ring, and the positioning A circuit board is installed on the top of the ring, the circuit board is provided with a detection node chip, the top of the chassis is clamped with a top cover, and a sealing ring is installed at the bottom of the top cover.

Preferably, the detection node chip realizes data interaction with a plurality of mobile terminals through a wireless networking module, the detection node chip includes a temperature and humidity sensing module, a single-chip microcomputer module and a WiFi communication module, and the mobile terminal includes a Data transmission module, data display module and alarm module.

Compared with prior art, the beneficial effect of the present invention:

1. In the wireless power supply automatic alarm diaper, the detection chip box presses the pressure plate downward from the pressing groove through its own gravity, so that the limit block is away from the side of the chuck, and the sliding column is moved by the elasticity of the compression spring itself. Ejection, and then drives two clamping plates to clamp, which is convenient for clamping and fixing the detection chip box, improves charging efficiency, and is easy to operate and easy to use.

2. In the wireless power supply automatic alarm diaper, the detection chip box is placed through the set placement bag, on the one hand, it can protect the detection chip box, on the other hand, it can prevent the temperature and humidity sensor from falling off, and improve the detection accuracy.

3. In the wireless power supply automatic alarm diaper, the mobile terminal is connected to the wireless networking module through the data transmission module, and receives the temperature and humidity data in the wireless networking module in real time, which is convenient for temperature and humidity inside the diaper body The data is monitored in real time.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Figure 2 is a schematic diagram of the installation of the detection chip box and the diaper body in the prior art of the present invention;

Fig. 3 is a schematic structural diagram of the wireless charging device of the present invention;

Fig. 4 is a schematic structural view of the clip of the present invention;

Fig. 5 is a disassembled view of the structure of the wireless charging board of the present invention;

Fig. 6 is a structural schematic diagram of the pressing mechanism of the present invention;

Fig. 7 is an exploded view of the structure of the elastic seat of the present invention;

Fig. 8 is a structural schematic diagram of the placement bag of the present invention;

Fig. 9 is a structure diagram of the diaper body of the present invention;

Fig. 10 is a schematic structural diagram of the wireless charging board in Embodiment 5 of the present invention;

Fig. 11 is a schematic diagram of the transmitting circuit in the wireless charging module of the present invention;

Fig. 12 is a circuit diagram of an oscillation signal generator in the wireless charging module of the present invention;

Fig. 13 is a circuit diagram of a resonant power amplifier in the wireless charging module of the present invention;

Figure 14 is a schematic diagram of the receiving circuit in the wireless charging module of the present invention

Fig. 15 is a disassembled view of the detection chip box structure of the present invention;

16 is a schematic diagram of a wireless networking module of the present invention;

Fig. 17 is a connection diagram of the overall module of the detection node chip of the present invention;

Fig. 18 is a block diagram of the detection node chip of the present invention;

FIG. 19 is a schematic diagram of connection of internal modules of the mobile terminal of the present invention;

Fig. 20 is a circuit diagram of the WiFi communication module of the present invention.

In the figure: 1. The diaper body; 11. The skin-friendly layer; 12. The diversion layer; 13. The quick-absorption layer; 14. The leak-proof layer; 15. The breathable layer; 2. The storage bag; 21. The installation strip; 22 , gap groove; 23, limit bar; 24, flip bag; 25, buckle; 26, card slot; 3, detection chip box; 31, chassis; 32, inner ring; 33, through hole; 34, positioning ring ;35, circuit board; 36, detection node chip; 37, top cover; 38, sealing ring; 4, wireless charging device; 41, wireless charging board; 411, box body; 412, board body; 413, pressing mechanism; 4131 , mounting plate; 4132, pressure rod; 4133, pressure plate; 4134, chute; 4135, limit block; 4136, elastic seat; 4137, outer cylinder; 4138, inner rod; 4139, return spring; 414, adjustment slot; 415, pressing groove; 42, charging line; 43, clamping piece; 431, clamping plate; 432, protective pad; 433, sliding rod; 434, straight rod; 435, clamping head; 436, sliding column; 437, compression spring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

Example 1

The present invention provides wireless power supply automatic alarm diapers, as shown in Figures 1-7, including a diaper body 1 and a wireless charging device 4, the outer wall of the diaper body 1 is provided with a storage bag 2, and the inside of the storage bag 2 The detection chip box 3 is placed, the wireless charging device 4 includes a wireless charging board 41 and a charging line 42 arranged on one side of the wireless charging board 41, a pair of clamping parts 43 are symmetrically arranged on the top of the wireless charging board 41, and the clamping parts 43 include The clamping plate 431, the bottom of the clamping plate 431 is equipped with a slide bar 433, the bottom of the slide bar 433 is integrally formed with a straight bar 434, the slide bar 433 and the straight bar 434 are vertically arranged, and one end of the straight bar 434 is integrally formed with a chuck 435 , the bottom of the straight rod 434 is installed with a sliding post 436, and one side of the sliding post 436 is provided with a compression spring 437. The wireless charging board 41 includes a box body 411 and a board body 412 installed on the top of the box body 411. The inner wall of the box body 411 is installed There is a pressing mechanism 413. The pressing mechanism 413 includes a mounting plate 4131. A pressing rod 4132 is provided at the center of the mounting plate 4131. A pressing plate 4133 is provided on the top of the pressing rod 4132. The two sides of the mounting plate 4131 are respectively provided with sliding posts 436. The chute 4134, the side of the mounting plate 4131 close to the chute 4134 protrudes upward to limit the limit block 4135, the bottom sides of the mounting plate 4131 are respectively equipped with elastic seats 4136, the clamping plate 431 is arc-shaped, and the clamping plate 431 The inner wall is equipped with a protective pad 432, and the top center of the plate body 412 is provided with a pressing groove 415 matching the size of the pressing plate 4133. The two sides of the pressing groove 415 are respectively provided with an adjustment groove 414 that is slidingly matched with the slide bar 433, and the elastic seat 4136 includes an outer cylinder 4137 welded on the inner wall of the box body 411, a return spring 4139 is installed inside the outer cylinder 4137, and an inner rod 4138 that slides with the outer cylinder 4137 is installed on the top of the return spring 4139, and the inner rod 4138 The top is welded on the bottom of the mounting plate 4131.

In this embodiment, the protective pad 432 is made of silica gel pad material, which has strong toughness and good elasticity, and is convenient for clamping and fixing the detection chip box 3 without damaging the detection chip box 3 .

Further, one end of the compression spring 437 is welded on the sliding post 436, and the other end of the compression spring 437 is welded on the inner wall of the box body 411, and the sliding post 436 can automatically return by the elasticity of the compression spring 437 itself.

Specifically, the flexible sensing heads in the detection chip box 3 are all designed with flexible printed circuit boards, and all use miniaturized, patched, and flat components, and use medically safe flexible materials, such as medical silicone or polydimethylformaldehyde The overall package is made of base siloxane material, which makes its appearance smooth and soft. The overall thickness is not higher than 3 mm, and it meets the requirements of flexibility and no sharp ports. It is suitable for placing the inner pad of adult diapers under the human body.

In addition, the flexible sensor head includes a wireless alarm circuit. The wireless alarm circuit adopts Zigbee technology, uses the medical safety frequency recommended by the international ISM frequency, has extremely low power consumption, and uses intermittent sleep technology to further reduce power consumption. It can be set by software, and an external signal integrated processor can also be used to connect hundreds of wireless alarm terminals at the same time.

In addition, the wireless alarm circuit can also use bluetooth technology, using the medical safety frequency recommended by the international ISM frequency, with extremely low power consumption, and can also be directly connected to mobile phones, computers or other bluetooth devices to upload alarm signals and Other data, and can further send the data to the cloud platform or to other terminal devices in the cloud through mobile phones and computers.

Further, the wireless alarm circuit can also adopt NB-IoT technology, use the medical safety frequency recommended by the international ISM frequency, the power consumption is extremely low, and the intermittent sleep technology is used to further reduce power consumption, and it can also be operated directly through mobile telecommunications The service provided by the provider sends the alarm signal and other data to other mobile terminals or cloud platforms.

Specifically, the flexible battery powered by the flexible sensor head adopts an organic battery with a thickness of no more than 3 mm and a certain degree of flexibility.

It is worth noting that the wireless charging board 41 is powered by an electromagnetically coupled wireless coil, adopts a flat coil structure, and is equipped with a corresponding voltage-stabilizing output circuit. The typical output voltage is 3.3V or 5V, and the typical output power is 10 microwatts to 1000 Between microwatts, the typical coil size is no more than 6 cm, and the typical coil shape is round or square. The corresponding power supply coil can be integrated with an external signal integration processor or placed separately.

In addition, the detection chip box 3 is provided with a flexible humidity sensor, the flexible humidity sensor can be a resistive humidity sensitive resistor, and a thin film made of a humidity-sensitive material is coated on the flexible substrate, and its resistance value changes with the humidity, so that it can Humidity is detected by detecting changes in its resistance.

In addition, the flexible humidity sensor can use a capacitive humidity-sensitive resistor, and use a humidity-sensitive material on the flexible substrate to make a capacitor composed of finger electrodes or a capacitor with other structures. The capacitance value changes with the humidity, so it can pass the detection Its capacitance changes to detect humidity.

It is worth noting that the preparation method of the humidity-sensitive thin film or structure of the flexible humidity sensor on the flexible substrate adopts spin coating, dip coating, blade coating, roll coating, screen printing or inkjet printing technology.

Further, the signal integrated processor is a mobile phone, computer or dedicated wireless communication device, and the required software and hardware are configured according to the requirements of the wireless communication protocol used, including but not limited to mobile phone APP, computer software and dedicated chips.

Specifically, the transmitting end of the wireless power supply system provides wireless power supply for multiple diapers at the same time, and each diaper is connected to its own signal integrated processor to receive and process it to determine whether an alarm is required and display it. Different diapers Send their respective numbers through wireless communication for automatic identification.

When the wireless charging device 4 with wireless power supply and automatic alarm for diapers in this embodiment is charging, in normal conditions, the chuck 435 is stuck on one side of the limit block 4135, so that the clamping plate 431 is located on both sides of the wireless charging plate 41. At this time, the detection chip box 3 that needs to be charged is placed on the wireless charging board 41, and the detection chip box 3 presses the pressure plate 4133 downward from the pressing groove 415 by its own gravity. At this time, the mounting plate 4131 is pressed to the Squeeze the elastic seat 4136 down, so that the inner rod 4138 compresses the return spring 4139 and enters the outer cylinder 4137, and the mounting plate 4131 moves downward as a whole, and because the compression spring 437 on the sliding column 436 is welded on the box body 411, when installed When the plate 4131 moves downward, the stop block 4135 leaves the side of the chuck 435. At this time, the stop block 4135 cannot limit the clip 435. By compressing the elasticity of the spring 437 itself, the sliding column 436 is ejected, so that the sliding column 436 slides in the chute 4134, and pushes the slide bar 433 to slide in the adjustment groove 414, and then drives the two clamping plates 431 to slide to the side of the pressing groove 415 to realize the clamping of the detection chip box 3, and remove the detection chip When the box is 3, it is only necessary to pull the clamping plate 431 to both sides, so that the slide bar 433 slides in the adjustment groove 414, and the slide column 436 compresses the compression spring 437 to slide in the slide groove 4134, so that the chuck 435 slides over the limit block 4135, and be stuck on the limit block 4135, and then limit the clamping part 43, so as to facilitate the detection chip box 3 to be taken out.

Example 2

As the second embodiment of the present invention, in order to facilitate the placement of the detection chip box 3, the inventors also provided a placement bag 2, as a preferred embodiment, as shown in Figure 8, one side of the placement bag 2 is folded A pair of installation strips 21 are bent, and the installation strips 21 are fixed on the outside of the diaper body 1 through needle and thread sutures. There is a gap groove 22 between the two installation strips 21, and a pair is respectively provided on both sides of the inner wall of the storage bag 2 for fixed detection. The limit bar 23 of the chip box 3, the top of the placement bag 2 is provided with a flip pocket 24, the inner wall of the flip pocket 24 is sewn with a buckle 25, and the outer wall of the placement bag 2 is provided with a buckle that is snapped together with the buckle 25. Slot 26.

In this embodiment, the storage bag 2 is made of non-woven material as a whole, which is environmentally friendly and non-toxic, and has strong toughness and high wear resistance, so that the storage bag 2 has good toughness and is not easy to wear.

Specifically, the limit bar 23 is made of a hard plastic material, and its material has a certain hardness. On the one hand, it can play a certain supporting effect for placing the bag 2 as a whole; The detection chip box 3 is limited and fixed.

Further, the flip pocket 24 and the installation strip 21 are fixed by stitching, so that the flip pocket 24 can be fixed on the placement bag 2 , and the flip pocket 24 can be bent and covered on the top of the flip pocket 24 .

When the wireless power supply automatic alarm diaper bag 2 of this embodiment is used, the installation strip 21 is fixed on the diaper body 1 by stitching, and the detection chip box 3 is put into the bag 2 at this time, so that the detection The chip box 3 is stuck in the limit bar 23, and then the turning bag 24 is turned over and covered on the top of the placement bag 2, and the buckle 25 is fastened in the draw-in groove 26 to get final product.

Example 3

As the third embodiment of the present invention, in order to further improve the overall water absorption effect of the diaper body 1, the inventors made improvements to the diaper body 1. As a preferred embodiment, as shown in Figure 9, the diaper The wet body 1 includes a skin-friendly layer 11 , a flow guide layer 12 , a quick-absorbing layer 13 , a leak-proof layer 14 and a breathable layer 15 arranged sequentially from top to bottom.

In this embodiment, the skin-friendly layer 11 is made of wood pulp fiber material, which is environmentally friendly, non-toxic, soft, and has good air permeability, so that the skin-friendly layer 11 can be directly attached to the skin.

Further, the diversion layer 12 is composed of a plurality of hollow cylinders, and the diversion layer 12 is made of cotton material, and the diversion layer 12 is set to guide the liquid into the core of the diaper on the one hand, reducing the contact time and area of the skin and urine , to keep the skin dry, on the other hand, it can guide the longitudinal distribution of liquid, improve the absorbency of diapers, and prevent the diapers from becoming locally thickened due to concentrated absorption of liquid, thereby hindering the subsequent absorption of liquid by the core.

Specifically, the quick-absorbing layer 13 is made of superabsorbent resin material, which can quickly absorb liquid and reduce the contact time between skin and urine.

In addition, the anti-leakage layer 14 is a water-repellent cloth, which can block liquid and avoid liquid leakage.

In addition, the air-permeable layer 15 is made of non-woven material, which has a good air-permeable effect, keeps the air circulation inside the diaper body 1, and avoids hot and dry skin.

Example 4

As the fourth embodiment of the present invention, in order to facilitate charging through the wireless charging board 41, the inventors made improvements to the wireless charging board 41. As a preferred embodiment, as shown in FIG. 10, the interior of the wireless charging board 41 A wireless charging module is also provided.

In this embodiment, the MSP430F2274 ultra-low-power single-chip microcomputer is used as the monitoring and control core of the wireless energy transfer charger in the wireless charging module. The charging speed is selected through the switch to realize the fast charging and normal charging functions. Automatically stop charging, the wireless charging system mainly adopts the principle of electromagnetic induction, and realizes energy transmission through energy coupling through coils.

Furthermore, the transmitting circuit in the wireless charging module is shown in Figure 11. The transmitting circuit is composed of two parts: an oscillation signal generator and a resonance power amplifier. The oscillation signal generator circuit is shown in Figure 12, and the resonance power amplifier circuit is shown in Figure 13. , the NE555 is used to form a signal generator with an oscillation frequency of about 510KHZ, which provides an excitation signal for the power amplifier circuit. The resonant power amplifier is composed of an LC parallel resonant circuit and a switch tube IRF840. The oscillating coil is tightly wound with 0.80mm diameter enameled wire for 20 turns as required. The diameter is about 6.5cm, and the measured inductance value is about 142uH. When the resonance is at 510KHZ, the capacitors C5 and C6 connected in parallel with it are about 680p, which can be fixed at 470pF. The capacitor is connected in parallel with an adjustable capacitor of 200PF, which can easily adjust the resonance frequency. The maximum current of the high-power tube TRF840 is 8A, and the internal resistance is 0.85 ohms when it is fully turned on. The tube generates a lot of heat, so it is necessary to install a heat sink. Resonance, at this time the voltage and current in the coil reach the maximum value, thereby generating the maximum alternating electromagnetic field. When the receiving coil is close to the transmitting coil, an induced voltage is generated in the receiving coil. When the resonant frequency of the receiving coil circuit and the transmitting frequency Resonance occurs at the same time, and the voltage reaches the maximum value. In fact, when both the transmitting coil circuit and the receiving coil circuit are in a resonant state, they have the best energy transmission effect.

Specifically, the receiving circuit of the wireless charging module is shown in Figure 14. After the electric energy is received by the coil, the high-frequency AC voltage is full-wave rectified by a fast diode 1N4148, filtered by a 3300F capacitor, and then regulated by a 5.1V Zener diode. The output direct current provides a relatively stable working voltage for the charger.

Because, Uc(t)=1C∫i(t)dt, in order to control charging time accurately, adopt the method for constant current charging among the present invention, can guarantee that charging current is roughly a constant I, the relation of above-mentioned capacitor voltage and time can represent for:

Uc(t)=Ict

The charging time should be less than 30S for fast charging, and controlled at 120±20S for slow charging. Calculate the currents required for fast charging and slow charging. Fast I1 and slow I2 are:

I1＝22000μF&TImes; 3V/30S≈2.2mA

I2＝22000μF&TImes; 3V/120S≈0.55mA

The turn-on voltage of diodes D1 and D2 is basically unchanged, so it can be used as a voltage reference, which is about 1.4V. The relationship between the voltages is:

UR+UEB＝UD1+UD2≈1.4V

It is worth noting that when the wireless charging board 41 is working, the input terminal converts AC mains power into DC power through a full-bridge rectifier circuit, or uses the 24V DC terminal to directly supply power to the system. When the receiving coil is close to the transmitting coil, an induced voltage is generated in the receiving coil. When the resonant frequency of the receiving coil circuit is the same as the transmitting frequency, resonance is generated, and the voltage reaches the maximum value, which has the best energy transmission effect. The energy is coupled through two inductive coils, and the current output by the secondary coil is converted into direct current by the receiving conversion circuit to charge the battery. The AC and DC input adopts a single-pole double-gate relay. When the AC is powered on, it is normally open and closed, and the normally closed is open to achieve AC priority. When the AC power is off, the relay is powered off and normally closed to realize automatic switching. When switching, the time is very short, and C1 can provide power for a certain period of time, which can realize continuous power switching without affecting charging.

Example 5

As the fifth embodiment of the present invention, in order to facilitate the real-time monitoring of the temperature and humidity of the diaper body 1, and display and alarm the detected data, as shown in Figures 15-19, the inventors tested the chip box 3 Improvements are made. As a preferred embodiment, the detection chip box 3 includes a chassis 31, an inner ring 32 is provided at the center of the inner wall of the chassis 31, and a plurality of through holes 33 are provided on the inner wall of the inner ring 32. The inner ring 32 is plugged with a A positioning ring 34, a circuit board 35 is installed on the top of the positioning ring 34, a detection node chip 36 is arranged on the circuit board 35, a top cover 37 is clamped on the top of the chassis 31, a sealing ring 38 is installed on the bottom of the top cover 37, and the detection node The chip 36 realizes data interaction with multiple mobile terminals through the wireless networking module. The detection node chip 36 includes a temperature and humidity sensing module, a single-chip microcomputer module and a WiFi communication module, and the mobile terminal includes a data transmission module, a data display module and an alarm. module.

In this embodiment, the temperature and humidity sensor module is based on the AM2303 temperature and humidity sensor produced by Guangzhou Aosong Electronics Co., Ltd. The AM2303 temperature and humidity sensor is a new type of single-bus sensor, which includes a capacitive humidity sensor and a high-precision sensor. Temperature element, the temperature measurement range is -40～+80℃, the accuracy is ± 0.3℃; the humidity measurement range is 0～99.9%RH, the accuracy is ±2%RH (25℃), AM2303 leads to 3 pins, of which, VDD and GND are power supply pins, power supply 3.5-5.5V, SDA is a data line, used to communicate with the microcontroller STC15F104W, the SDA pin is a three-state structure, used to read and write sensor data.

Further, the single-chip microcomputer module adopts the STC15F104W single-chip microcomputer produced by Hongjing Technology Co., Ltd. The working voltage of the single-chip microcomputer is 3.8-5.5V, and the enhanced 8051CPU core is adopted. The instruction code is fully compatible with the traditional 51 single-chip microcomputer, and the speed is faster. The 128-byte RAM in the chip , 1KEEPROM, 4KBFlash program memory, internal high-reliability reset, can completely save the external reset circuit, with high-precision R/C clock, the internal clock is 5 ~ 35MHz optional, using 8-pin package, there are two common 16-bit reset Loading timer/counter, there are 6 general-purpose I/O ports in total, and the serial port function can be realized by using the I/O port combined with the timer.

Specifically, the WiFi communication module adopts the ultra-low power embedded WiFi module (USR-WiFi232-G) produced by Renren Technology Co., Ltd. This module provides a way to connect the user's physical device to the WiFi wireless network and provide UART serial port and other interface data transmission solutions provide an integrated 801.11/b/g/nWiFi low power consumption solution. USR-WiFi232-G is a module that integrates all WiFi functions and adopts surface-mount packaging. Equipped with a built-in PCB antenna and an external antenna connector, it adopts FCC/CE standard certification, the frequency range is 2.412-2.484GHz, the working voltage range is 3.6-3.1V, and it can work normally in the environment of -40-85°C. The signal transmission distance can reach 150m when using an antenna, and up to 400m when using an external antenna.

It is worth noting that the WiFi communication module circuit is shown in Figure 20. After the MCU sends a start signal to AM2303, AM2303 switches from sleep mode to high-speed mode and sends a response signal, and sends the detected temperature and humidity serially from the data line SDA. Data, the end of sending the data triggers an information collection, and the sensor automatically enters the sleep mode after the collection is completed, until the next communication comes. The specific communication protocol is described as follows:

①The MCU sends a start signal to AM2303, pulls the data line SDA low for a period of time (at least 800 μs), then releases the data line, and listens to the response signal sent by AM2303;

②AM2303 sends a response signal, pulls the data line SDA low for 80 μs, and then pulls it high for 80 μs as a response signal to respond to the microcontroller;

③AM2303 serially outputs 40-bit data through the data line SDA, the high bit comes out first, and the sent data is 8 bits of high humidity, 8 bits of low humidity, 8 bits of high temperature, 8 bits of low temperature and 8 check digits, AM2303 sends out The humidity and temperature values are 10 times the actual humidity and temperature values, the highest temperature bit (bit 15) is the sign bit, setting "1" means negative temperature, setting "0" means positive temperature, and the temperature is lower by 15 bits (bit 14~ Bit 0) represents the temperature value, and the check digit is the sum of the high humidity bit, the low humidity bit, the high temperature bit and the low temperature bit;

④After the data line SDA of AM2303 outputs 40-bit data, it continues to output low level for 50μs, and then turns to input state. Due to the pull-up resistor, the data line becomes high electron, AM2303 measures the temperature and humidity data again inside, and records the data, and waits The microcontroller sends the start signal again.

In this embodiment, the wireless networking module is designed based on USR-WiFi232-G, which can be used as a wireless access point (AP) to realize the central node function of the wireless network, or as a wireless station (STA) to realize the wireless network terminal function. USR-WiFi232-G networking is based on AP networking and AP+STA coexistence networking. AP-based wireless networking is a basic networking method, which consists of one AP and multiple STAs. AP In the central position, multiple STAs communicate with each other through AP forwarding. USR-WiFi232-G supports the networking mode based on AP+STA coexistence, that is, the module can support one AP interface and one STA interface at the same time, and the STA interface of the module can It is connected to the router and connected to the server in the network through a TCP connection, so that remote communication can be realized through the Internet. At the same time, the AP interface on the module is also available. The mobile terminal can be directly connected to the AP interface to control serial devices or modules. Devices communicate, and this wireless networking mode provides greater flexibility for users.

When the wireless power supply automatic alarm diaper of this embodiment is in use, the temperature and humidity information on the diaper body 1 is detected by the temperature and humidity sensing module, and the detected temperature and humidity data are converted into digital information by the single-chip microcomputer module, and The information is sent to the wireless networking module through the WiFi communication module, and the mobile terminal is connected to the wireless networking module through the data transmission module, and receives the temperature and humidity data in the wireless networking module in real time, and displays the received temperature and humidity data through the data The module displays, and when the warning value is exceeded, an alarm reminder is realized through the alarm module.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. wireless power automatic alarm diaper, including diaper ontology (1) and wireless charging device (4), it is characterised in that: institute The outer wall for stating diaper ontology (1) is provided with putting bag (2), and the inside of the putting bag (2) is placed with detection chip box (3), The wireless charging device (4) includes the charging cable of wireless charging board (41) and setting in the wireless charging board (41) side (42), it is symmetrically arranged with a pair of of clamping piece (43) at the top of the wireless charging board (41), the clamping piece (43) includes clamping The bottom of plate (431), the grip block (431) is equipped with slide bar (433), and the bottom of the slide bar (433) is integrally formed with straight Bar (434), the slide bar (433) and the straight-bar (434) are vertically arranged, and one end of the straight-bar (434) is integrally formed with card Head (435), the bottom of the straight-bar (434) are equipped with traveller (436), and the side of the traveller (436) is provided with compressed spring (437), the wireless charging board (41) includes box body (411) and the plate body (412) being mounted at the top of the box body (411), The inner wall of the box body (411) is equipped with pressing mechanism (413), and the pressing mechanism (413) includes mounting plate (4131), described The center of mounting plate (4131) is provided with compression bar (4132), is provided with pressing plate (4133) at the top of the compression bar (4132), The two sides of the mounting plate (4131) offer the sliding slot (4134) being slidably matched with the traveller (436), the installation respectively Plate (4131) raises upward close to the sliding slot (4134) side to be had limited block (4135), the bottom two of the mounting plate (4131) Side is separately installed with elastic force seat (4136).

2. wireless power automatic alarm diaper according to claim 1, it is characterised in that: the grip block (431) is in Arc shape, and the inner wall of the grip block (431) is equipped with protective pad (432).

3. wireless power automatic alarm diaper according to claim 1, it is characterised in that: the top of the plate body (412) Portion center offers pressing groove (415) compatible with the pressing plate (4133) size, the two sides of the pressing groove (415) The regulating tank (414) being slidably matched with the slide bar (433) is offered respectively.

4. wireless power automatic alarm diaper according to claim 1, it is characterised in that: elastic force seat (4136) packet The outer cylinder (4137) being welded on the box body (411) inner wall is included, the inside of the outer cylinder (4137) is equipped with return spring (4139), the interior bar (4138) being slidably matched with the outer cylinder (4137) is installed at the top of the return spring (4139), and The mounting plate (4131) bottom end is welded at the top of the interior bar (4138).

5. wireless power automatic alarm diaper according to claim 1, it is characterised in that: the one of the putting bag (2) Side is bent with a pair of of mounting bar (21), and the mounting bar (21) is fixed on the outside of the diaper ontology (1) by needlework suture, There are clearance groove (22) between two mounting bars (21), the inner wall two sides of the putting bag (2) are respectively arranged with a pair of of use In the limit blend stop (23) of the fixation detection chip box (3).

6. wireless power automatic alarm diaper according to claim 5, it is characterised in that: the top of the putting bag (2) Portion, which is provided with, to be turned over bag (24), it is described turn over bag (24) inner wall suture be fixed with buckle (25), the outer wall of the putting bag (2) offers The card slot (26) being engaged by clamping with the buckle (25).

7. wireless power automatic alarm diaper according to claim 1, it is characterised in that: the diaper ontology (1) Skin-friendly layer (11), guide layer (12), speed including setting gradually from top to bottom inhale layer (13), application of anti-leakage layers (14) and air-permeable layer (15)。

8. wireless power automatic alarm diaper according to claim 1, it is characterised in that: the wireless charging board (41) Inside be additionally provided with wireless charging module.

9. wireless power automatic alarm diaper according to claim 1, it is characterised in that: the detection chip box (3) Including chassis (31), the inner wall center of the chassis (31) is provided with inner ring (32), and inner ring (32) inner wall offers Multiple through-holes (33), it is mating on the inner ring (32) to have positioning ring (34), electricity is installed at the top of the positioning ring (34) Road plate (35) is provided with detection node chip (36) on the circuit board (35), is connected with top cover at the top of the chassis (31) (37), the bottom end of the top cover (37) is equipped with sealing ring (38).

10. wireless power automatic alarm diaper according to claim 9, it is characterised in that: the detection node chip (36) data interaction is realized by wireless networking module and multiple mobile terminals, include temperature in the detection node chip (36) Humidity sensor module, one-chip computer module and WiFi communication module include data transmission module, data in the mobile terminal Display module and alarm module.