CN203248806U - Domestic ultra-low power consumption water-supply-cut-off self-closed valve device - Google Patents
Domestic ultra-low power consumption water-supply-cut-off self-closed valve device Download PDFInfo
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- CN203248806U CN203248806U CN 201320256602 CN201320256602U CN203248806U CN 203248806 U CN203248806 U CN 203248806U CN 201320256602 CN201320256602 CN 201320256602 CN 201320256602 U CN201320256602 U CN 201320256602U CN 203248806 U CN203248806 U CN 203248806U
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Abstract
The utility model discloses a domestic ultra-low power consumption water-supply-cut-off self-closed valve device which is composed of an electrically operated valve, a water pressure switch and a controller. When the domestic ultra-low power consumption water-supply-cut-off self-closed valve device works, the pressure of tap water is normal, a starting button of the controller is pressed down, the electrically operated valve is started, and power supply is maintained. When water supply in a tap water pipe is cut off, the water pressure switch works, the electrically operated valve is closed by the controller, water supply is cut off, and an alarm indicating signal is output. After water is midway supplied through the tap water pipe and the pressure becomes normal, water supply can be recovered only after the starting button of the controller is pressed down again, therefore, the water leakage phenomenon after sudden water supply can be prevented, and the water-saving aim is achieved.
Description
Technical field
The utility model is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device, relates to a kind of powered battery water-outage automatic shutoff valve device, but is specifically related to household tap water pipeline autoshutdown water route and a kind of self-closing valve device of the indication of reporting to the police is provided when cutting off the water.
Background technique
It is not rare to cut off the water in the daily life, forgets in cutting off the water that closed tap namely leaves home or sleep to have a rest also to happen occasionally, and light waste water resource then also can cause when situation is serious and overflow within doors water, brings disaster to neighbours.
Electronic or electromagnetic type Self-closed water valve device, the key problem that needs to consider are the reliabilities of power supply and how ensure long standby time when adopting powered battery.
The patent No. is 200320115361.8 utility model patent " alarming protector of cutting off the water " employing civil power alternating current 220V power supply, and safety and reliability is poor, can not realize during mains failure reporting to the police and protective function.
The patent No. is respectively No. 97211457.2 utility model patent " alarm for running water ", No. 92210078.0 utility model patent " automatic electronic warning device for water leakage from tap ", No. 201020002742.5 utility model patent and " cuts off the water and do not close water total gate valve in auto-alarming water tap or the family " and all adopt powered battery, reliability is high, but the control gear power consumption is large, standby working time is short, and all can only finish the warning function of cutting off the water, can not realize automatically closing valve.
Summary of the invention
For solving the problem that has electronic or electromagnetic type Self-closed water valve power supply reliability now, be necessary to provide a kind of employing powered battery, and up-time, sufficiently long cutting off the water detected and the self-closing control gear of valve.
A kind of family expenses super low-power consumption self-closing valve under water-supply off door device comprises hydraulic pressure switch, mortor operated valve and controller.The tap water pressure situation of change detects and delivers to controller by hydraulic pressure switch, controller judges whether to cut off the water according to the variation of tap water pressure, cut off the water if judge, controller is closed by mortor operated valve drive circuit control mortor operated valve, and driving LED is sent alarm signal simultaneously.After mortor operated valve cut out, the start button switch of only pressing when hydraulic pressure recovers normal on the controller just can reopen valve.
In described device, adopt 2 joint alkaline battery power supplies.
In described device, whether cutting off the water compresses switch by the tap water that is installed in the valve front detect to judge that tap water supply is normal, and hydraulic pressure is higher than setting value, and hydraulic pressure switch disconnects; Tap water cut-off, hydraulic pressure is lower than setting value, and hydraulic pressure switch is closed.
In described device, the mortor operated valve drive circuit adopts the programmable power supply power supply, only opening or closing in the process of electric valve, mortor operated valve, mortor operated valve drive circuit and programmable power supply thereof be consumes power, when valve was kept closed condition or kept opening state, mortor operated valve, mortor operated valve drive circuit and programmable power supply thereof be consumes power not.
In described device, the MSP430 single-chip microcomputer that the single-chip microcomputer selection of controller has low power mode of operation, be operated in low-power consumption mode during the single-chip microcomputer standby, the timer timing wakes single-chip microcomputer to mode of operation up to the interrupt request singal that produces, and the task single-chip microcomputer that is disposed enters the low-power consumption standby state again.
In described device, when cutting off the water, LED is by the indication of reporting to the police of cutting off the water of luminous mode intermittently, and the luminous employing short duration current of LED drives.When not reporting to the police, LED and warning drive circuit thereof be consumes power not.
In the controller of described device, be provided with hand switch, when hand switch is beaten to the enable possition, the enforced opening electric valve; When hand switch is beaten to closed position, the positive closing electric valve; When hand switch was beaten in center off position, controller was operated in auto state.
In the controller of described device, start button switching signal, hydraulic pressure switch signal, hand switch signal convert logic level to by logic level converting circuit and deliver to single-chip microcomputer, logic level converting circuit adopts the programmable power supply power supply, in the inquiry on off state, corresponding programmable power supply power supply, switching logic electrical level conversion circuit consumes power; When not inquiring about on off state, corresponding programmable power supply is not powered, and the switching logic electrical level conversion circuit is consumes power not.
The beneficial effects of the utility model are, 1. cut off the water rear autoshutdown main valve and send AIS of running water pipe after running water pipe recovers water, need to be pressed start button and just can resume water supply; 2. power consumption is ultralow, adopts powered battery, can guarantee long-time safe and reliable work; 3. have manual control function, can replace the total water valve in the domestic water supply system.
Description of drawings
Fig. 1 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment system architecture diagram.
Fig. 2 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment control principle block diagram.
Fig. 3 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment circuit theory diagrams.
Fig. 4 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment main program flow chart.
Fig. 5 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment timer interrupt program flow chart.
Fig. 6 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment valve closing/keep and close subroutine flow chart.
Fig. 7 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment valve opening/keep unlatching subroutine flow chart.
Fig. 8 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment LED warning subroutine flow chart.
Embodiment
Below in conjunction with Figure of description the utility model embodiment is specified.
See Fig. 1, the utility model is comprised of mortor operated valve 3, hydraulic pressure switch 2 and controller 1.
Fig. 2 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment control principle block diagram.
The control core of controller 1 is single-chip microcomputer 4, and the mechanical switch signal of hydraulic pressure switch 2, start button switch 5, hand switch 6 is delivered to the IN1 input interface of single-chip microcomputer 4 after logic level converting circuit 8 converts logic level to; Single-chip microcomputer 4 via mortor operated valve drive circuit 10, is controlled the open and close of mortor operated valve 3 by output interface OUT4 output control signal; Single-chip microcomputer 4 is by output interface OUT3 output LED alarm signal, and control LED warning drive circuit 12 sends alarm signal; Power supply 13 is the alkaline battery power supply unit, and being used for provides working power VDD to described device.
Be to reduce power consumption, the intermittent work mode that single-chip microcomputer 4 adopts activity patterns and low-power consumption mode to replace, finish the work of necessity under the activity pattern after, single-chip microcomputer 4 enters low-power consumption mode; Under the low-power consumption mode, single-chip microcomputer 4 timer internal timings arrive, and wake single-chip microcomputer 4 up and enter activity pattern.
For reducing power consumption, the logic level converting circuit 8 of single-chip microcomputer 4 peripheries, mortor operated valve drive circuit 10 adopt the programmable power supply power supply.Single-chip microcomputer 4 is by the programmable power supply 7 of output interface OUT1 control logic electrical level conversion circuit 8, and only under single-chip microcomputer 4 activity patterns, during the inquiry input interface IN1 logic level signal, programmable power supply 7 just provides+the V1 power supply to logic level converting circuit 8; Single-chip microcomputer 4 is by the programmable power supply 9 of output interface OUT2 control mortor operated valve drive circuit 10, and only in the process of Open valve or throttle down, programmable power supply 9 just provides+the V2 power supply to mortor operated valve drive circuit 10.
For reducing power consumption, single-chip microcomputer 4 adopts short duration current driving LED 11 luminous, is realized by the PWM1 pulse signal of OUT3 output frequency between 20Hz～100Hz.
For reducing power consumption, LED11 employing intermittently luminous mode is reported to the police, during warning, PWM short duration current between 20Hz～100Hz drives the signal process cycle after the resting period signal modulation between 1～10s, from the OUT3 output of single-chip microcomputer 4, the LED intermittently modulation of luminescence process is realized by software again.
Fig. 3 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment circuit theory diagrams.
In the present embodiment, power supply 13 is comprised of battery BT25 and filter capacitor C24, and it is No. 5 alkaline batteries of 2000mAh that battery BT25 selects 2 joints, 10 Ω discharge electricity amounts, and the voltage range of its output VDD is 3.0V～1.8V, and filter capacitor C24 is 47 μ F electrochemical capacitors.
In the present embodiment, single-chip microcomputer 4 adopts the MSP430 series monolithic of low power consumption, and concrete model is selected MSP430G2553, and the supply voltage scope is 1.8V～3.6V, and its power input VCC, VSS directly are connected to VDD+, the VDD-end of power supply 13.Following table is the single-chip microcomputer 4 input/output interface title tables of comparisons among Fig. 2 and Fig. 3.
The ACLK of single-chip microcomputer 4 is produced by the crystal XT19 of frequency 32768Hz, and the CPU frequency of okperation is set as 1MHz, under the activity pattern, and single-chip microcomputer 4 source currents 400 μ A; Under the LPM3 low-power consumption mode, single-chip microcomputer 4 source currents 0.9 μ A.Under the LPM3 low-power consumption mode, single-chip microcomputer 4 timer internals are 125ms regularly, and timing enters activity pattern to waking single-chip microcomputer 4 up, activity pattern is consuming time less than 1ms, after the tasks such as data acquisition, control output, again enter the LPM3 low-power consumption mode, go round and begin again.The average operating current of single-chip microcomputer 4
。
The opening end of hand switch 6 and shutdown side are connected to respectively input interface P1.6, the P1.5 of single-chip microcomputer 4.During off position that hand switch 6 mediates, the P1.6 of single-chip microcomputer 4, P1.5 are connected to respectively power supply+V1 through pull-up resistor R16, R17, the input high level signal, and described device works in automatic mode; When hand switch 6 is connected to the enable possition, the P1.6 input low level, the single-chip microcomputer 4 unconditional mortor operated valves 3 that keep are in opening state; When hand switch 6 is connected to closed position, the P1.5 input low level, the single-chip microcomputer 4 unconditional mortor operated valves 3 that keep are in closed condition.In the present embodiment, hand switch 6 is selected three (ON-OFF-ON) toggle switch of KN11-103 type single-pole double throw.
Hydraulic pressure switch 2 is connected to the input interface P1.4 of single-chip microcomputer 4, and when tap water pressure was normal, hydraulic pressure switch 2 disconnected, and P1.4 is connected to power supply+V1 through pull-up resistor R18, input high level; When tap water pressure is lower than setting value, hydraulic pressure switch 2 closures, P1.4 input low level.In the present embodiment, it is the pressure switch of PM-001-A-G18-NC that hydraulic pressure switch 2 is selected model, pressure setting scope 0.01～0.1MPa.
Start button switch 5 is connected to the input interface P1.7 of single-chip microcomputer 4, and P1.7 is connected to power supply+V1 through pull-up resistor R15.Described device is operated under the automatic mode, and is normal at tap water pressure when mortor operated valve 3 is in closed condition, in the situation that hydraulic pressure switch 2 disconnects, presses start button switch 5, and single-chip microcomputer 4 just can send start signal to mortor operated valve 3, Open valve.In the present embodiment, start button switch 5 is selected LA128AY-11 type pocket buttons.
Pull-up resistor R15, R16, R17, R18 be through start button switch 5, hand switch 6, hydraulic pressure switch 2 ground connection, forms logic level converting circuit 8, to the output interface P2.4 control by single-chip microcomputer 4 of the programmable power supply 7 of this circuit supply.Because logic level converting circuit 8 is very little during as load, programmable power supply (7) directly can use the output control interface P2.4 of single-chip microcomputer (4) to replace, single-chip microcomputer 4 is in the inquiry on off state, control P2.4 output high level, programmable power supply 7 is opened, the high level voltage value of P2.4 output is directly powered to logic level converting circuit 8 as the unlatching output voltage+V1 of programmable power supply 7, at this moment logic level converting circuit 8 consumes power; All the other time single-chip microcomputers 4 control P2.4 output low levels, programmable power supply 7 cuts out, and the low level voltage value of P2.4 output is directly as the output voltage of closing of programmable power supply 7, and 8 this moments of logic level converting circuit are consumes power not.In the present embodiment, the resistance of pull-up resistor R15, R16, R17, R18 is 100k Ω, the gap periods of 4 pairs of on off state inquiries of single-chip microcomputer is 125ms, the inquiry of finishing once all on off states is consuming time less than 10 μ s, at most 3 switch on ground connection can only be arranged simultaneously in all switches, this moment, the maximum average current of logic level converting circuit 8 consumption was
The average operating current of this circuit is very little, and the electric weight of its consumption can be ignored.
LED warning drive circuit 12 is constant-current source circuit, is comprised of triode T20, resistance R 21, potentiometer R22, voltage-stabiliser tube D23, is connected to the output interface P2.1 of single-chip microcomputer 4, and P2.1 exports high level, and LED11 is luminous.When the output voltage of power supply 13 changes between 3.0V and 1.8V, the electric current that LED11 is flow through in the constant-current source circuit maintenance is substantially constant, LED11 selects the yellow light-emitting diode of forward voltage drop 1.4V, and triode T20 model is SS9013, and voltage-stabiliser tube D23 model is BZX55C0V8, voltage stabilizing value 0.8V, resistance R 21 resistances are 5.1k Ω, and potentiometer R22 resistance is 47 Ω, during debugging, regulator potentiometer R22 makes and flows through the 5mA electric current on the LED11.
Behind the tap water cut-off, LED11 adopts intermittently luminous mode to report to the police, and the resting period is 1～10s, and in the present embodiment, the light period at intermittence of LED11 is 2s during warning, fluorescent lifetime 0.5s wherein, fire out time 1.5s; Burst pulse driving current peak value 5mA, dutycycle 20%(PWM pulse frequency 32Hz, dutycycle 80%), during warning, the average operating current of LED11 is
。
Normal and mortor operated valve 3 valve openings of tap water supply, or described device is operated in manual state lower time, LED11 stop alarm.
In the present embodiment, programmable power supply 9 to the power supply of mortor operated valve drive circuit 10 is step-up DC/DC stabilized power supply, is comprised of resistance R 27, triode T28, voltage-stabilizing DC electric pressure converter DC/DC26, inductance L 29, resistance R 30, resistance R 31, capacitor C 32.Programmable power supply 9 is by the output interface P2.3 control of single-chip microcomputer 4, during the P2.3 output low level, triode T28 saturation conduction, dc voltage changer DC/DC26 obtain input voltage and normal operation, programmable power supply 9 provides DC electrical source to mortor operated valve drive circuit 10, and+V2 voltage is+5V; During P2.3 output high level, triode T28 cut-off, dc voltage changer DC/DC26 does not work without input voltage, and programmable power supply 9 is closed, and its DC electrical source that provides to mortor operated valve drive circuit 10+V2 voltage is 0V.In the circuit of present embodiment programmable power supply 9, resistance R 27 resistances are 470 Ω, triode T28 is the SS9012 of high β value, voltage-stabilizing DC electric pressure converter DC/DC26 is that efficient can reach 94% TP3602, inductance L 29 is 22 μ H, the resistance of resistance R 30 and R31 is respectively 1.5M Ω and 500k Ω, and capacitor C 32 is 22 μ F, and Schottky diode D33 model is MBR0520L.
In the present embodiment, mortor operated valve 3 is selected CWX-15N type electric ball valve, adopt CR02 three line traffic control mode distributions, mortor operated valve drive circuit 10 is comprised of resistance R 37, triode T34, diode D35, relay K A36, and single-chip microcomputer 4 opens or cut out mortor operated valve 3 signals by output interface P2.2 to 10 outputs of mortor operated valve drive circuit.Described device keep mortor operated valve 3 valve states constant in, single-chip microcomputer 4 control output interface P2.3 output high level, the P2.2 output low level, triode T28 and T34 all end, programmable power supply 9 is closed, and programmable power supply 9, mortor operated valve drive circuit 10 be consumes power not all; During throttle down, single-chip microcomputer 4 control P2.3 output low levels, programmable power supply 9 output+5V voltages, the P2.2 output low level, triode T34 cut-off, relay K A36 coil losing electricity, the KA36 normally closed interlock is closed, the GR end of mortor operated valve 3 obtains+5V voltage, its valve begins to close, and the 5s late gate is closed and put in place, mortor operated valve 3 inner auto-breakings, this moment, single-chip microcomputer 4 control output interface P2.3 exported high level, and the valve closing process finishes; During Open valve, single-chip microcomputer 4 control P2.3 output low levels, programmable power supply 9 output+5V voltages, P2.2 exports high level, triode T34 saturation conduction, and relay K A36 coil gets electric, the KA36 normally open contact is closed, the RD end of mortor operated valve 3 obtains+5V voltage, and its valve begins to open, and the 5s late gate is opened and put in place, mortor operated valve 3 inner auto-breakings, this moment, single-chip microcomputer 4 control output interface P2.3 exported high level, the P2.2 output low level, and the valve opening process finishes.
In the circuit of mortor operated valve drive circuit 10, resistance R 37 resistances are 1k Ω, triode T34 model is SS9013, diode D35 model is 1N4148, relay K A36 selects the TQ2-5V of Panasonic relay, coil current 28.1mA, and the operating current when mortor operated valve 3 opens or cuts out is 80mA, mortor operated valve 3 and relay K A36 open and close average operating current once are 94.05mA, 10s consuming time.The voltage range of power supply 13 outputs is 3.0V～1.8V, and the input voltage of dc voltage changer DC/DC26 need to deduct the saturation voltage landing 0.3V of triode T28 in the programmable power supply 9, and its scope is 2.7V～1.5V, and average voltage is 2.1V; During open and close mortor operated valve 3, the output voltage of dc voltage changer DC/DC26 is 5V, and efficient is 94%, and during mortor operated valve 3 open and close one time, the average operating current that is converted to power supply 13 is
。
The average working voltage of power supply 13 output is 2.4V, considers the ideal base drive current of resistance R 27, R37, and during mortor operated valve 3 open and close one time, the general average operating current that is converted to power supply 13 is
The electric weight that mortor operated valve 3 switches once consume is
Guarantee described device normal operation, the output voltage of power supply 13 need to be greater than 1.8V, discharge electricity amount is 0.9V * 2=1.8V for the cut-off operating voltage that No. 5 alkaline battery BT25 of 2000mAh can provide, and the discharge electricity amount of its 2000mAh all is effective work electric weight.Single-chip microcomputer 4 can continuous operation time annualizedly be
Perhaps the number of times of switch mortor operated valve 3 valves is
Perhaps the hour number of 11 continuous alarm times of driving LED is
Suppose to cut off the water once in average 3 days, cut off the water at every turn and reported to the police 10 hours, then
Running in the situation of frequently cutting off the water and reporting to the police for a long time, 2 joint discharge electricity amounts are that No. 5 alkaline batteries of 2000mAh can be kept described device normal operation 1729 days.
Fig. 4 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment main program flow chart.After single-chip microcomputer 4 resets, the initialization of at first carrying out comprises the tasks such as internal clocking configuration, the setting of I/O mouth, set timer, storehouse arrange, then close mortor operated valve 3 valves, the 125ms Interruption of open single-chip microcomputer 4 on-chip timer TA0 enters the LPM3 low-power consumption mode.This main program only is performed once after resetting.
Fig. 5 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment timer interrupt program flow chart, and this TA0 interrupt routine is carried out once every 125ms.Program is at first read in the logic level state of each switch, before reading in the logic level state, needs open programmable power supply 7, reads in after the logic level state, closes programmable power supply 7 again.Whether described device is operated in auto state is differentiated by the logic level of the hand switch 6 that reads in, when manual state, close the LED alarm signal, and further judge it is manual-lock state or manually opened state according to the logic level of hand switch 6, if the manual-lock state, then resetting starts sign, execution valve closing/keep and close subroutine; If manually opened state, then set start sign, carry out valve opening/keep the unlatching subroutine.
When described device is operated in auto state, program is judged current whether cutting off the water according to the hydraulic pressure switch 2 logic level states that read in, if cut off the water, and the warning of cutting off the water of program execution LED warning subroutine, resetting starts sign, then carries out valve closing/keep and close subroutine; If do not cut off the water, close the LED alarm signal, when startup indicates that set or start button switch 5 are pressed, execution valve opening/keep the unlatching subroutine, otherwise the execution valve closing/keep and close subroutine.Because the state of start button switch 5 is just inquired about once every 125ms, therefore, when starting mortor operated valve 3 Open valve, the time of pressing start button switch 5 buttons can not be shorter than 125ms.Startup sign in the flow chart is a bank bit in single-chip microcomputer 4 storagies, the operation of when being used for the execution of this time of memory interrupt routine mortor operated valve 3 being carried out, cutting off the water or will resetting at the manual-lock state starts sign, press when hydraulic pressure is normal start button switch 5 or manually opened state then set start sign.
Timer interrupt program calls execution valve closing/keep and closes after subroutine or valve opening/keep open subroutine, single-chip microcomputer 4 reenters the LPM3 low-power consumption mode, behind the 125ms, the next time interruption of timer TA0 will wake single-chip microcomputer 4 again up, this interrupt routine also will be performed again, go round and begin again.
Fig. 6 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment valve closing/keep and close subroutine flow chart, and program function is throttle down, or keeps valve to be in closed condition.
The current state of mortor operated valve 3 has 4 kinds: keep closed condition, just in off position, keep opening state, just in opening state, the gap periods 125ms that the time that each state need to keep all repeats much larger than timer interrupt routine, normal for guaranteeing the logical relation between mortor operated valve 3 valve states and the timer interrupt routine, remember respectively the current state of mortor operated valve 3 valves in the program with conditional code 1～4, they be keep closed condition (1), just in off position (2), keep opening state (3), just in opening state (4).At valve closing/keep and close in the subroutine, if valve current be to keep closed condition (1) then program is directly returned; Not to keep closed condition (1), just in off position (2), then need to begin throttle down, program is carried out respectively and is opened programmable power supply 9, output cut-off valve gate drive signal, the timing of beginning valve closing process, puts current state for returning after (2) just in off position; Closing process timing in (2) is adopted 125ms interruption times counting is realized just in off position, after full 40 times of counting, closing process continue 5s, stop programmable power supply 9, stop to export the cut-off valve gate drive signal, put current state and return after keeping closed condition (1), counting then directly returns for discontented 40 times.The mortor operated valve 3 valve tasks of closing in the main program only need to reset and start sign, put current state and get final product for keeping opening state (3), when carrying out timer interrupt program for the first time, and can automatic startup valve closing process.
Fig. 7 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment valve opening/keep the unlatching subroutine flow chart, and program function is Open valve, or keeps valve to be in opening state.
To keep opening state (3) then program is directly returned if valve is current; Not to keep opening state (3), neither be just in opening state (4), then need to begin Open valve, program is carried out respectively and is opened programmable power supply 9, output open valve gate drive signal, the timing of beginning valve opening process, puts current state for just returning after opening state (4); Just same employing of the opening process timing in opening state (4) realized 125ms interruption times counting, after full 40 times of counting, opening process continue 5s, stop programmable power supply 9, stop to export the open valve gate drive signal, put current state and return after keeping opening state (3), counting then directly returns for discontented 40 times.
Fig. 8 is a kind of family expenses super low-power consumption self-closing valve under water-supply off door device embodiment LED warning subroutine flow chart.Mould 16 counters are used for realizing the intermittently modulation of luminescence process of LED, and the every execution of mould 16 counters once adds 1, are equivalent to the disconnected timing 125ms counting of centering and add 1, and the time that meter is full 16 times is 2s; The value of mould 16 counters is lighted LED between 0～3, extinguish LED between 4～15.When lighting LED, by the pwm pulse of the timer TA1 in the single-chip microcomputer 4 from LED alarm signal output interface output frequency 32Hz, dutycycle 20%; When extinguishing LED, close the LED alarm signal.
Claims (7)
1. a family expenses super low-power consumption self-closing valve under water-supply off door device comprises a hydraulic pressure switch (2), mortor operated valve (3) and controller (1), it is characterized in that, comprising:
A, controller (1) are by power supply (13), single-chip microcomputer (4), start button switch (5), hand switch (6), logic level converting circuit (8), mortor operated valve drive circuit (10), LED warning drive circuit (12), LED(11) and programmable power supply (7), programmable power supply (9) form;
The mechanical switch signal of B, hydraulic pressure switch (2), start button switch (5), hand switch (6) is after logic level converting circuit (8) converts logic level to, deliver to the input interface of single-chip microcomputer (4), logic level converting circuit (8) is powered by programmable power supply (7);
The control signal of C, single-chip microcomputer (4) output is via mortor operated valve drive circuit (10), the unlatching of control mortor operated valve (3) or close, and mortor operated valve drive circuit (10) is powered by programmable power supply (9).
2. a kind of family expenses super low-power consumption self-closing valve under water-supply off door device as claimed in claim 1 is characterized in that: described power supply (13) is comprised of 2 joint alkaline batteries and filter capacitor.
3. a kind of family expenses super low-power consumption self-closing valve under water-supply off door device as claimed in claim 1, it is characterized in that: described single-chip microcomputer (4) is MSP430G2553.
4. a kind of family expenses super low-power consumption self-closing valve under water-supply off door device as claimed in claim 1, it is characterized in that: described programmable power supply (7) to logic level converting circuit (8) power supply directly uses the corresponding output control interface of single-chip microcomputer (4) to replace, the control interface high level signal voltage of output is as the unlatching output voltage of programmable power supply (7), and the control interface low level signal voltage of output is as the output voltage of closing of programmable power supply (7).
5. a kind of family expenses super low-power consumption self-closing valve under water-supply off door device as claimed in claim 1, it is characterized in that: described LED warning drive circuit (12) is constant-current source circuit.
6. a kind of family expenses super low-power consumption self-closing valve under water-supply off door device as claimed in claim 1 is characterized in that: described programmable power supply (9) to mortor operated valve drive circuit (10) power supply is step-up DC/DC stabilized power supply.
7. a kind of family expenses super low-power consumption self-closing valve under water-supply off door device as claimed in claim 1, it is characterized in that: described hand switch (6) is three toggle switch of single-pole double throw.
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| CN 201320256602 CN203248806U (en) | 2013-05-13 | 2013-05-13 | Domestic ultra-low power consumption water-supply-cut-off self-closed valve device |
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| CN 201320256602 CN203248806U (en) | 2013-05-13 | 2013-05-13 | Domestic ultra-low power consumption water-supply-cut-off self-closed valve device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140024A (en) * | 2018-09-28 | 2019-01-04 | 苏州丹顿机电有限公司 | One kind is cut off the water self closing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140024A (en) * | 2018-09-28 | 2019-01-04 | 苏州丹顿机电有限公司 | One kind is cut off the water self closing device |
| CN109140024B (en) * | 2018-09-28 | 2020-06-30 | 苏州丹顿机电有限公司 | Automatic closing device for water cut-off |
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