CN208722380U - A kind of infant's anticollision super-limit prewarning device - Google Patents

Abstract

A kind of infant's anticollision super-limit prewarning device, whole device includes bottom plate, bottom edge is installed with several weighing sensors, weighing sensor is connect with connecting rod, connecting rod and weighing sensor constitute gravity sensing device, several weighing sensors and connecting rod connect into a rectangle frame, are evenly arranged between weighing sensor, each weighing sensor output end is connected with automatic control terminal.Present apparatus stable structure can trigger multiple weighing sensors simultaneously, and high sensitivity acquires the gravitation information of infant's pressure touch weighing sensor by weighing sensor, start warning device in time and GSM sends short message.

Description

A kind of infant's anticollision super-limit prewarning device

Technical field

The utility model belongs to infant and nurses field, in particular to infant protecting prior-warning device.

Background technique

Infant easily rolls since intelligence and limb coordination ability are not developed completely in the case where nobody looks after, disorderly It climbs, needs household's twenty four hours to look after to avoid colliding with, conditional family can choose a people and look after, and a people does housework, Then the mode looked after by turns, and this mode needs to consume the labour of two adults, for most of families not It is too real.Currently, people are in order to solve this problem, the ground installing for setting railing to bedstead or playing to child can be taken to hide Block material prevents their tumble injuries although this method can limit the scope of activities of infant；But the method similarly limits greatly People look after range and the visual field, reduce convenience when big people look after infant.

In addition, also someone proposes new technical solution, such as infant multifunctional pillow to this problem, application No. is 2011110286006.6, the place that described pillow is placed is not capable of fixing, and infant easily plays pillow as toy, Or underground is kicked with foot, false alarm occurs.In view of the above technical problems, it temporarily finds not yet and preferably solves to do Method.

Utility model content

In view of technical problem present in background technique, a kind of infant's anticollision provided by the utility model transfinites pre- Alarm device can be installed under mattress or under foam pad, and when infant will touch insecure area, warning device can be certainly Dynamic starting, reminds child household to do housework soon may fall down or encounter, goes to look after the children in time, by child Son is ajusted.Fall arrest and the problem of anticollision when nobody looks after this solution solves infant, avoid household not child at one's side Time slot in, bring injury to child.

In order to solve the above-mentioned technical problem, the utility model takes following technical solution to realize:

A kind of infant's anticollision super-limit prewarning device, including bottom plate, bottom edge have installed several weighing sensors, claim It retransmits sensor to be connected with connecting rod, connecting rod and weighing sensor constitute gravity sensing device, and each weighing sensor is defeated Outlet is connected with automatic control terminal, several weighing sensors and connecting rod connect into a rectangle frame, weighing sensor Between be evenly arranged, stable structure.

In preferred scheme, in the automatic control terminal, weighing sensor output end and signal pre-processing module are defeated Entering end electrical connection, signal pre-processing module output end is electrically connected with single-chip microcomputer input again, single-chip microcomputer output and alarm module, Relay driving module, GSM SMS module electrical connection, power module provide power supply to feeder ear.

In preferred scheme, the weighing sensor includes weighing sensor induction contact and weighing sensor pedestal, Weighing sensor induction contact is electrically connected with signal pre-processing module, and signal pre-processing module is electrically connected with A/D conversion module, A/ D conversion module and monolithic mechatronics, the output end of single-chip microcontroller are electrically connected with relay, the contact of relay and warning device Circuit series connection, the output end of single-chip microcontroller are also electrically connected with gsm module.

In preferred scheme, the automatic control terminal is mounted in the flip lid hollow cylinder on bottom plate, renovates hollow cylinder It is that cylinder and arc-shaped door are formed by connecting by loose-leaf, wraps up buffer layer outside flip lid hollow cylinder.

In preferred scheme, the weighing sensor induction contact is fixedly connected with the connecting rod, and is located at connecting rod Lower section.

This patent can reach it is following the utility model has the advantages that

1, several weighing sensors and connecting rod connect and compose a rectangle frame, are evenly arranged between weighing sensor, knot Structure is stablized, and can trigger multiple weighing sensors simultaneously, and high sensitivity is not likely to produce false alarm, when infant reaches restricted area When, anticollision super-limit prewarning device starts automatically and household is notified to pay attention to taking precautions against child's collision in time；

2, present apparatus safety coefficient is high, and the degree of automation is strong, acquires infant's pressure touch weighing and sensing by weighing sensor The gravitation information of device, starts warning device in time and GSM sends short message；

3, home labour force is saved, household can be allowed not to be afraid of child's collision when doing housework, feel at ease to do housework, reported when hearing When alert signal or short message, it is only necessary to take child in one's arms in the past, be allowed to come back to safety zone, housework and look after child and neglect neither.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and examples:

Fig. 1 is utility model works schematic diagram；

Fig. 2 is the signal amplification circuit figure of the utility model weighing sensor；

Fig. 3 is the A/D conversion circuit figure of the utility model weighing sensor；

Fig. 4 is the utility model relay driver interface circuit diagram；

Fig. 5 is the mechanical structure top view of the utility model；

Fig. 6 is the mechanical construction drawing of the utility model weighing sensor；

Fig. 7 is that the utility model weighing sensor is fixedly connected with the connecting rod figure；

Fig. 8 is that the utility model renovates hollow cylinder structure chart.

In figure: weighing sensor 1, weighing sensor induction contact 1-1, weighing sensor pedestal 1-2, Signal Pretreatment mould Block 2, power module 3, single-chip microcontroller 4, GSM SMS module 5, relay driving module 6, alarm module 7, bottom plate 8, connecting rod 9, cylinder Body 10, loose-leaf 11, arc-shaped door 12, automatic control terminal 13.

Specific embodiment

Preferred scheme is as shown in figure 5, a kind of infant's anticollision super-limit prewarning device, including bottom plate 8, bottom edge fill If several weighing sensors 1, weighing sensor are connected with connecting rod 9, connecting rod and sensor constitute gravity sensing dress It sets, each weighing sensor output end is connected with automatic control terminal 13, several weighing sensors are connected into connecting rod One rectangle frame is evenly arranged between weighing sensor, stable structure.

Preferred scheme is as shown in Figure 1, in automatic control terminal, 1 output end of weighing sensor and signal pre-processing module 2 Input terminal electrical connection, signal pre-processing module output end are electrically connected with 4 input terminal of single-chip microcontroller again, single-chip microcomputer output and alarm mould Block 7, relay driving module 6, GSM SMS module 5 are electrically connected, and power module 3 provides power supply to feeder ear.

As shown in figures 1 to 6, weighing sensor includes that weighing sensor induction contact 1-1 and weighing pass to preferred scheme Sensor pedestal 1-2, weighing sensor induction contact are electrically connected with signal pre-processing module, and signal pre-processing module and A/D are converted Module electrical connection, A/D conversion module and monolithic mechatronics, the output end of single-chip microcontroller are electrically connected with relay, the touching of relay Head is connected with the circuit of warning device, and the output end of single-chip microcontroller is also electrically connected with gsm module.

Preferred scheme renovates hollow cylinder as shown in figure 8, automatic control terminal is mounted in the flip lid hollow cylinder on bottom plate It is that cylinder 10 and arc-shaped door 12 are formed by connecting by loose-leaf 11, wraps up buffer layer outside flip lid hollow cylinder.

Preferred scheme is as shown in Figs. 5 to 7, and weighing sensor induction contact 1-1 is fixedly connected with connecting rod 9, and is located at The lower section of connecting rod 9.

Preferred scheme is as shown in Figure 1, two section dry cells can be used in series, be given using dry cell power supply by power supply Signal pre-processing module, weighing sensor, single-chip microcontroller, alarm module, relay driving module and gsm module provide power supply. Since battery is to convert chemical energy to electric energy, battery is intake dangerous by outside in order to prevent, after the series connection of two section dry cells, By cell sealing in aluminium alloy compartment, in order to guarantee battery power supply reliability, we select south to inspire confidence in No. seven batteries.

Preferred scheme is as shown in Figs. 5 to 7, and weighing sensor is arranged as multiple, and bottom plate is rectangle, in each edge of bottom plate Upper setting 3, the stretching induction end of each weighing sensor is fixed with connecting rod, when infant pushes down any the one of connecting rod A place can all touch weighing sensor, to realize the sensitivity of weighing.In this patent, it is desirable that weighing sensor Volume is as small as possible and as light as possible, we select the miniature weighing sensor of AT8106 model, the weighing sensor diameter Only 8mm, range can reach 20N to 1000N, be quick on the draw, and measurement is accurate, cheap, convenient and practical.

Preferred scheme is as shown in fig. 6, weighing sensor passes through weighing sensor touching raised on weighing sensor pedestal Head carrys out induction pressure, to meet this patent demand.

Preferred scheme needs special amplifying circuit to electricity as shown in Fig. 2, the output signal of weighing sensor is smaller Pressure signal amplifies, and weighing sensor is exported using 3 line systems, so selecting to put using instrument in Design enlargement circuit Big device MAX4196, it has the closed loop gain of Differential Input and opposite reference end Single-end output, has difference output and opposite ginseng Examine the Single-end output at end.That is its two differential input ends apply input signal, gain can by internal preset, can also by with Family is arranged by pin inner portions or is arranged by the external gain resistor that input signal is isolated.

Preferred scheme is as shown in Figure 1, the signal of weighing sensor acquisition is amplified by signal pre-processing module, A/ D conversion after be responsible for receiving by single-chip microcontroller it is analysis integrated, when weighing-up wave be more than system setting weight threshold, single-chip microcontroller issue control System order starts warning device by relay driving module, while starting gsm module and sending short message.

Preferred scheme as shown in figure 3, a kind of infant's anticollision super-limit prewarning device provided by the utility model, by What it is in weighing sensor output is analog signal, and it is digital signal that single-chip microcontroller is received, it is therefore desirable to which weighing sensor is defeated Simulation model out is converted into digital signal, we select ADC0808 conversion chip completion simulation model to turn to digital signal It changes.The chip is a kind of more common 8 road analog input, the successive comparison ADC chip of 8 bit digital quantities output.It should Circuit major function is the value for reading weighing sensor and receiving circuit.When weighing sensor is detected higher than the weight being arranged in system When measuring parameter threshold, data will be acquired in time and are turned by the analog signal that weighing sensor is acquired and issued by ADC0808N Change 8 digital signals into.

Further, single-chip microcontroller mainly carries out analysis integrated and issues control command to the signal of acquisition.In this patent In, AT89S52 single-chip microcontroller is selected, using the AT89S52 of Atmel company as main control chip, it is the main control module of this patent A kind of low-power consumption, 8 CMOS technology processors have 8K online programmable flash storage, and the Flash in piece can be compiled repeatedly Journey provides convenience for online programming.There are the RAM of 128 bytes, the EEPROM of 4KB in piece, due to reasonably arranging using in piece Ram space, so the outer RAM of the piece not extended, keeps circuit structure simple and direct；Wherein P3.0-P3.1 data acquire input terminal, P3.3 Weighing sensor output signal end, P3.4 overload alarm signal input part.

Preferred scheme is as shown in figure 4, since alarm module is combined aural and visual alarm, and external with single-chip microcontroller, single-chip microcontroller cannot Combined aural and visual alarm starting alarm is directly driven, needs to start by relay driving combined aural and visual alarm.Relay is by corresponding PNP The S9012 triode of model drives, and when booting, the respective pins after single-chip microcontroller initialization are high level, triode cut-off, institute With booting after relay be in release conditions always, if respective pins be low level, the base stage of triode will be pulled low and Enough base currents are generated, triode ON is made, relay will obtain electric actuation, to drive load, start sound-light alarm Device.The resistance and 6800pf capacitor in the output end of relay 100 Europe in parallel, it is therefore an objective to avoid relay from being attracted and be produced with deenergized period It lights a fire flower.Each relay has the contact of a pair of of normally-open normally-close, and convenient for using in other circuits, relay coil both ends are anti- The diode being in parallel is to play the function of being attracted inverse electromotive force, protects corresponding driving triode, this relay driving Mode hardware configuration is fairly simple.

The workflow of whole device is as follows: the bottom plate equipped with weighing sensor is placed on family ground or on bed, this Place is just based on being put on the ground.Safety zone, such as 3 meters of settable length, wide 2 meters of rectangle frame are set first, then 8 are weighed Sensor is uniformly placed on the side of bottom plate, and four edges form a closed safety zone equipped with weighing sensor.Work as baby When child touches the connecting rod for being fixed with weighing sensor, automatic control device starts warning device and GSM transmitting device, when When household hears the alarm signal that warning device issues or short message, it will come to look after child in time, prevent collision accident Occur.

The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model Protection scope within.

Claims (4)

1. a kind of infant's anticollision super-limit prewarning device, including bottom plate (8), it is characterised in that: bottom edge is installed with several Weighing sensor (1), weighing sensor are connected with connecting rod (9), and connecting rod and weighing sensor constitute gravity sensing dress It sets, several weighing sensors and connecting rod connect into a rectangle frame, are evenly arranged between weighing sensor, and each weighing passes Sensor output end is connected with automatic control terminal (13), in automatic control terminal (13), weighing sensor (1) output end and letter The electrical connection of number preprocessing module (2) input terminal, signal pre-processing module output end are electrically connected with single-chip microcontroller (4) input terminal again, singly Piece machine output end is electrically connected with alarm module (7), relay driving module (6), GSM SMS module (5), and power module (3) is given Feeder ear provides power supply.

2. infant's anticollision super-limit prewarning device according to claim 1, it is characterised in that: weighing sensor includes claiming Retransmit sensor induction contact (1-1) and weighing sensor pedestal (1-2), weighing sensor induction contact and signal pre-processing module Electrical connection, signal pre-processing module is electrically connected with A/D conversion module, A/D conversion module and monolithic mechatronics, single-chip microcontroller it is defeated Outlet is electrically connected with relay, and the contact of relay is connected with the circuit of warning device, the output end of single-chip microcontroller also with gsm module Electrical connection.

3. infant's anticollision super-limit prewarning device according to claim 1 or 2, it is characterised in that: automatic control terminal It is mounted in the flip lid hollow cylinder on bottom plate, flip lid hollow cylinder is to be connect cylinder (10) with arc-shaped door (12) by loose-leaf (11) It forms, wraps up buffer layer outside flip lid hollow cylinder.

4. infant's anticollision super-limit prewarning device according to claim 1 or 2, it is characterised in that: weighing sensor sense It answers contact (1-1) to be fixedly connected with connecting rod (9), and is located at the lower section of connecting rod (9).