CN105334011A - Alarm for preventing water leakage of flush toilet water tank - Google Patents

Abstract

The invention discloses an alarm for preventing water leakage of a flush toilet water tank, which is characterized by comprising a water flow detection sensor, an amplifying circuit, a single chip microcomputer, set keys and a sound-light alarm, wherein the water flow detection sensor is arranged at the water inlet of the flush toilet, water flow amount is detected, an analog voltage signal generated is amplified via the amplifying circuit and is then connected with the input end of the single chip microcomputer, the set keys S1, S2 and S3 are respectively connected with SW1, SW2 and SW3 control ports of the single chip microcomputer, and the sound-light alarm is connected with the output port of the single chip microcomputer. The alarm for preventing water leakage of the flush toilet water tank has the advantages of simple structure, low hardware cost and the like, can be used as an accessory of the flush toilet, is convenient to mount, can be applied to homes and hotels, is reliable in work, good in real-time performance, and has great promotion values.

Description

One prevents water leakage alarm for water tank of flush

Technical field

The present invention relates to one and prevent water leakage alarm for water tank of flush.

Background technology

Water closet uses very general in the family, but due to quality problems, service time is long or careless; the seepy question of water tank is very serious; although the water yield of leaking is little at every turn, add up to get off, the water inventory of waste is very surprising; the water resources crisis that China faces is day by day serious; present water price rising, has increased the weight of financial burden to people, in the market except improving waterbox design; also there is no to detect water tank whether to leak, and send the alarm of warning.

Summary of the invention

For solving above-mentioned existing shortcoming, what fundamental purpose of the present invention was to provide a kind of practicality prevents water leakage alarm for water tank of flush, there is the advantages such as structure is simple, low in hardware cost, can as the accessory kit of water closet, easy for installation, family, hotel can be applied to, reliable operation, real-time is good, has great promotional value.。

For reaching above-described object, one of the present invention prevents water leakage alarm for water tank of flush from taking following technical scheme:

One prevents water leakage alarm for water tank of flush, it is characterized in that, be made up of current acquisition sensor, amplifying circuit, single-chip microcomputer, setting button, audible-visual annunciator, described current acquisition sensor is arranged on the water inlet of water closet, detect discharge, produce analog voltage signal to be connected with single-chip microcomputer input end after amplifying circuit amplifies, setting button divides S1, S2, S3 tri-buttons, controls mouth be respectively connected with single-chip microcomputer SW1, SW2, SW3.

Described audible-visual annunciator is connected with single-chip microcomputer output port.

Adopt the present invention of as above technical scheme, there is following beneficial effect:

The present invention adopts whole alarm to be arranged on the water inlet of water tank, user can according to the capacity of oneself water tank, alarm sets the upper limit of warning flow and continues the time of water inlet, current acquisition sensor detects the discharge entering water tank, single-chip microcomputer is once detect that water inlet has into water, just timing is carried out to flooding time, when water tank continuous print inflow exceedes the upper limit of setting, or the continuum micromeehanics time is when exceeding setting value, illustrate that water tank exists drainage, audible-visual annunciator can send warning, go before reminding user to check, it is simple that the present invention has structure, the advantages such as low in hardware cost, can as the accessory kit of water closet, easy for installation, family can be applied to, hotel, reliable operation, real-time is good, there is great promotional value.

Accompanying drawing explanation

Fig. 1 is frame principle of the present invention.

Fig. 2 is integrated circuit figure of the present invention.

Fig. 3 is water flow sensing unit input amplifying circuit figure of the present invention.

Fig. 4 is single chip circuit figure of the present invention.

Fig. 5 is that the present invention sets key circuit figure.

Fig. 6 is sound and light alarm circuit figure of the present invention.

Embodiment

In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:

As shown in Figure 1 and Figure 2, one of the present invention prevents water leakage alarm for water tank of flush, is made up of current acquisition sensor 1, amplifying circuit 2, single-chip microcomputer 3, setting button 4, audible-visual annunciator 5, current acquisition sensor 1 is arranged on the water inlet of water closet, detect the discharge entering water tank, produce at the output terminal of sensor and there is with discharge the faint analog voltage signal determining funtcional relationship, after amplifying circuit 2 pairs of signals amplify, be input to single-chip microcomputer 3 control core, 10 A/D convertor circuits that this simulating signal is first comprised by control core inside are converted to digital signal, the control program maintenance data integrated filter that single-chip microcomputer 3 is built-in, data tracking algorithm processes digital signal, draw concrete discharge numerical value, simultaneously, 3-dawn of single-chip microcomputer detects that water inlet has into water, just timing is carried out to flooding time, the high alarm setting data of total inflow and continuum micromeehanics time and controller internal reservoir compare, if numerical value exceeds standard, the light emitting diode of sound light alarming circuit is lighted, send instruction of reporting to the police, the normally opened contact of relay J T1 closes, and alarm speaker sends chimes of doom, if total inflow and continuum micromeehanics time do not exceed standard, once water inlet stops, single-chip microcomputer just removes total inflow and the continuum micromeehanics time data of this statistics, has detected again add up into during water in next time.

As shown in Figure 3, current acquisition sensor 1 has been connected on JP1 socket, be arranged on the water inlet of water closet, current acquisition sensor 1 detects the discharge entering water tank, produces the voltage signal with discharge direct ratio, because signal is fainter, need to be amplified with amplifying circuit 2, amplifying circuit 2 adopts high speed amplifier OPO7 to form, after amplifying, and the control mouth RA1 of signal input single-chip microcomputer 3.

As shown in Figure 4, control core adopts novel PIC16F873A single-chip microcomputer 3, inside contains 8 path 10 position A/D convertor circuits, the simulating signal that amplifying circuit 2 exports is converted to digital signal, processed by processing unit, the EEPROM program storage of single-chip microcomputer 3 inside the is built-in control program of alarm, control program maintenance data integrated filter, data tracking algorithm process digital signal, draw concrete discharge numerical value; Simultaneously, when having detected current by sensor, timing is carried out to the solid stream of water time, compare with the higher limit of total flow stored and the higher limit of continuum micromeehanics time again, if total flow or continuum micromeehanics time exceed higher limit, then produce corresponding control signal, drive the warning circuit that single-chip microcomputer 3 connects.

As shown in Figure 5, setting button 4 is made up of S1, S2, S3 tri-buttons, and SW1, SW2, SW3 are the control mouth of single-chip microcomputer 3, and user is by setting button 4, the higher limit of total flow and continuum micromeehanics time can be inputted to the single-chip microcomputer 3 of alarm inside, and be stored in the EEPROM of single-chip microcomputer 3.

As shown in Figure 6, J3 socket connects loudspeaker, and RC6, RC7 are the control mouth of single-chip microcomputer 3, and when needs are reported to the police, RC6, RC7 of single-chip microcomputer 3 produce high-level control signal, make light emitting diode D2 glittering on the one hand; On the other hand, make relay J T1 action, normally opened contact closes, and loudspeaker is energized, and sends chimes of doom.

The present invention has the advantages such as structure is simple, low in hardware cost, can as the accessory kit of water closet, and easy for installation, can be applied to family, hotel, reliable operation, real-time is good, has great promotional value.

Claims (2)

1. one kind prevents water leakage alarm for water tank of flush, it is characterized in that, be made up of current acquisition sensor, amplifying circuit, single-chip microcomputer, setting button, audible-visual annunciator, described current acquisition sensor is arranged on the water inlet of water closet, detect discharge, produce analog voltage signal to be connected with single-chip microcomputer input end after amplifying circuit amplifies, setting button divides S1, S2, S3 tri-buttons, controls mouth be respectively connected with single-chip microcomputer SW1, SW2, SW3.

2. one according to claim 1 prevents water leakage alarm for water tank of flush, it is characterized in that, audible-visual annunciator is connected with single-chip microcomputer output port.