CN2328000Y - Intellectual multi-stage level indication controller - Google Patents

Intellectual multi-stage level indication controller Download PDF

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Publication number
CN2328000Y
CN2328000Y CN 98202695 CN98202695U CN2328000Y CN 2328000 Y CN2328000 Y CN 2328000Y CN 98202695 CN98202695 CN 98202695 CN 98202695 U CN98202695 U CN 98202695U CN 2328000 Y CN2328000 Y CN 2328000Y
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liquid level
resistance
chip microcomputer
single chip
circuit
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Expired - Fee Related
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CN 98202695
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Chinese (zh)
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查恩玉
谢勇
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Individual
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Individual
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  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

The utility model relates to an intellectual multi-stage liquid level indication controller, which solves the problem that the prior art can only indicate and control two liquid levels, or has difficulty in debugging although capable of indicating and controlling a plurality of liquid levels. The utility model comprises a multi-stage sensor positioned in a water tank, a single-chip microcomputer, a liquid level setting circuit, a liquid level indicating circuit and an output controlling circuit. The intellectual multi-stage level indication controller can indicate and control a plurality of liquid levels in the water tank and can arbitrarily set a liquid level to be controlled as required, and the setting process is simple. The utility model can indicate and control both the liquid level of a high-position water tank and the liquid level of an underground reservoir.

Description

Intelligence multi-stage liquid level display controller
The utility model belongs to be measured and the control field, particularly to the measurement and the control of liquid level.
At present, to the demonstration and the control of liquid level, otherwise very simple, can only show and control two liquid levels; Very complicated, as ZL94243359.9, wireless telemetering water tower level watch-dog.Though it can show and control a plurality of liquid levels, debugging is difficult, and cost is very high.
The purpose of this utility model is that design is a kind of simple in structure, debugging easily, the intelligent multi-stage liquid level display controller that cost is lower.
This intelligence multi-stage liquid level display controller comprises:
1. liquid level sensor;
2. single chip microcomputer;
3. liquid level display circuit;
4. controlling output circuit;
It is characterized in that:
1.1, liquid level sensor (1) is by electrode A that links to each other with positive source, place water tank bottom and the electrode a that places the water tank differing heights nForm, be positioned at the electrode a of differing heights nPass through resistance R nLink to each other with one group of I/O mouth of single chip microcomputer (2), simultaneously, electrode a nPass through resistance R N 'Ground connection (wherein n＞2);
2.1, the clock circuit of single chip microcomputer (2) is by resistance R 21With capacitor C 21After the series connection, its resistance R 21Meet power supply V CC, capacitor C 21Ground connection GND, the OSC of its line mid point order sheet microcomputer 1Pin; The reset circuit of single chip microcomputer (2) is by resistance R 22With button S 1After the series connection, resistance R 22Meet power supply V CC, button S 1Ground connection GND, another SET pin of its line mid point order sheet microcomputer (2); The VCC termination power of single chip microcomputer (2), GND holds ground connection, PA 0-7, PB 0-6, PC 0-5Be the I/O mouth;
3.1, the liquid level display circuit by digital display circuit (3) or/and light beam display circuit (3 ') form;
4.1, controlling output circuit is by one group of single chip microcomputer (2) (M) delivery outlet and resistance R M, opener electrode triode V MForm, perhaps by one group of (M) delivery outlet and resistance R of single chip microcomputer (2) M ', triode V M 'And relay K MForm (wherein M 〉=1);
5. should also comprise by intelligence multi-stage liquid level display controller by resistance R 51With button S 2After the series connection, resistance R 51The V of order sheet microcomputer (2) CCPin (power supply), button S 2The GND pin of order sheet microcomputer (2) (), a certain input port of its line mid point order sheet microcomputer (2) is with the electricity erasable memorizer (E in the single chip microcomputer (2) 2PROM) form liquid level initialization circuit (5).
Liquid level digital display circuit (3) is by the I/O mouth (PB of single chip microcomputer 2.3.4), three seven sections light-emitting nixie tube LED 1, triode V 31～V 33And resistance R 31～R 33Form bit driver circuit; I/O mouth (PA by single chip microcomputer 0-7) by resistance (R 34～R 311) connection light-emitting nixie tube LED 1Form segment drive circuit; Light beam display circuit (3 ') links to each other another termination triode (V of light emitting diode by single chip microcomputer n I/O mouth by n resistance with n light emitting diode 34) collector, triode (V 34) base stage by resistance (R 322) certain I/O mouth of order sheet microcomputer (2), triode (V 34) grounded emitter (wherein n＞2).
This utility model is owing to differing heights in water tank is provided with electrode a n, therefore can carry out multistage demonstration and control to liquid level.The liquid level initialization circuit is simple, and is easy to operate.
This utility model both can be used for elevated tank, also can be used for underground conservation pool.
Description of drawings:
Fig. 1 is a structured flowchart of the present utility model, and Fig. 2 is three light-emitting nixie tube synoptic diagram, and Fig. 3 is the circuit diagram of embodiment, and Fig. 4 is the liquid level setting program process flow diagram (subroutine) of embodiment, and Fig. 5 is the operation control program process flow diagram of embodiment.
Embodiment:
This embodiment is used to show and control the water level of elevated tank.Its circuit structure as shown in Figure 3.
Liquid level sensor (1) in the water tank is by the electrode A that places water tank bottom and ten electrode a that place differing heights n(a 1～a 10) form, the difference in height between adjacent electrode is 1/10 of whole liquid level.Electrode a 1～a 10Pass through resistance R respectively n(R 111～R 120) with the I/O mouth (PA of single chip microcomputer (2) 0～PA 7, PB 0～PB 1) link to each other, simultaneously, electrode a 1～a 10Pass through resistance R N '(R 11～R 110) ground connection.
The clock circuit of single chip microcomputer (2) is by resistance R 21With capacitor C 21After the series connection, the OSC of its mid point order sheet microcomputer (2) 1Pin, reset circuit is by resistance R 22With button S 1Series connection, the SET pin of its mid point order sheet microcomputer (2), above-mentioned resistance R 21And R 22Hold the V of equal order sheet microcomputer (2) CCPin (power supply), and capacitor C 21With button S 1The GND pin (ground connection) of equal order sheet microcomputer (2), PA 0-7, PB 0-6, PC 0-5Be the I/O mouth.
The liquid level display circuit by digital display circuit (3) or/and light beam display circuit (3 ') form.Liquid level digital display circuit (3) is by the I/O mouth (PB of single chip microcomputer 2～PB 4) and three seven sections light-emitting nixie tube LED 1, triode (V 31～V 33) and resistance (R 31～R 33) the composition bit driver circuit.Triode (V wherein 31～V 33) collector connect power supply, emitter sending and receiving light charactron, base stage is by resistance (R 31～R 33) the delivery outlet PB of order sheet microcomputer (2) 2, PB 3, PB 4I/O mouth (PA by single chip microcomputer (2) 0-7) by resistance (R 34～R 311) sending and receiving light charactron LED 1Form segment drive circuit.Liquid level light beam display circuit (3 ') is by the I/O mouth (PA of single chip microcomputer (2) 0-7, PB 0-1) by resistance (R 312～R 321) and light emitting diode (V 35～V 314) link to each other light emitting diode (V 35～V 314) another termination triode (V 34) collector, triode V 34Base stage pass through resistance R 322I/O mouth (the PB of order sheet microcomputer (2) 5), triode (V 34) grounded emitter.
Controlling output circuit is by one group of delivery outlet (PC of single chip microcomputer (2) 0-5) pass through resistance R respectively 41～R 46) and triode (V 41～V 46) base stage link to each other triode (V 41～V 46) grounded emitter, collector is as output terminal; Perhaps, by one group of delivery outlet (PC of single chip microcomputer (2) 0-5) pass through resistance R respectively 41 '～R 46 'With triode V 41 '～V 46 'Base stage link to each other triode V 41 '～V 46 'Grounded emitter, collector connecting relay (K 41～K 46) coil, by relay (K 41～K 46) the contact as output terminal.
Liquid level initialization circuit (5) is by resistance R 51With button S 2After the series connection, resistance R 51The V of order sheet microcomputer (2) CCPin (power supply), button S 2The GND pin of order sheet microcomputer (2) (), the PB of its line mid point order sheet microcomputer (2) 6Pin is with the electric erasable memory (E in the single chip microcomputer (2) 2PROM) form.
The principle of work of present embodiment is as follows:
Utilize the electric conductivity of water, the probe that in water tank, is not had (electrode a by water logging n) linking to each other with electrode A by water becomes high level, this high level is by resistor network R 11～R 110, R 111～R 120Be added on the corresponding I/O mouth of single chip microcomputer (2), the I/O mouth of the probe correspondence that is not had by water logging is not a low level.After single chip microcomputer (2) detects the high level that sensor (1) sends here, make corresponding I/O mouth output high level, to drive the light-emitting nixie tube LED of liquid level digital display circuit 1, realize that the liquid level numeral shows; Simultaneously, the high level of single chip microcomputer output also drives the light emitting diode V of liquid level light beam display circuit 35～V 314, realize that the liquid level light beam shows.Initialization circuit (5) is set controlled liquid level according to actual needs.For example, the liquid level when present embodiment is used in water tank (pond) water filling shows and control, can set water when full the liquid level numeral be shown as 100%, 10 light emitting diodes in the liquid level light beam display circuit are bright entirely.At this moment, single chip microcomputer output termination of pumping signal stops water filling in water tank; Decline of water table is to certain position, as reaches 60% o'clock of whole height of water level, and the liquid level numeral is shown as 60%, 6 light emitting diode and lights, and at this moment, the pump signal is opened in single-chip microcomputer output, beginning water filling in water tank; Decline of water table arrives guards against the position, as reaches at 40% o'clock of whole water level, and 40%, 4 light emitting diode of liquid level numeral demonstration is lighted, and single-chip microcomputer sends sound and light alarm.When single chip microcomputer detects above-mentioned position, will export the termination of pumping signal by controlling output circuit, open pump signal and alerting signal.These signals can be by triode V 41～V 46Opener electrode output, perhaps by relay K 41～K 46often open or normally closed contact output.
Below, with reference to Fig. 4 liquid level setting program process flow diagram is described.
This embodiment is used for to high-level tank water, palpus capping liquid level (termination of pumping), bottom limit level (opening pump) and alarm liquid level.
The liquid level setting module is by resistance R 51, button S 2With the electric erasable memory E in the single chip microcomputer 2PROM forms, E 2PROM is used for storing setting data, sets by key S 2Finish.Fig. 2 is used to show three light-emitting nixie tube synoptic diagram of liquid level for present embodiment.Wherein represent upper limit liquid level, bottom limit level and alarm liquid level respectively for 1,2,3 section of the 3rd charactron.The 2nd, the 1st figure place sign indicating number pipe are used to show that liquid level with respect to the percentage of high liquid level, increases progressively (or successively decreasing) with 10.
The liquid level setting program is as follows: press setting key S 2, 1 section flicker of the 3rd charactron, the setting value of upper limit liquid level is presented on the 2nd, the 1st charactron.As press setting key S 2Do not loose one's grip, then 1,2,3 section demonstration of the 3rd charactron is with t 1The time interval circulation of (as 0.5 second) occurs, and the setting value of correspondent section appears on the 2nd, the 1st charactron simultaneously.After loosing one's grip, which section the 3rd demonstration is parked in can reset the liquid level of this section with regard to expression, promptly enters set condition.If at t 2Time interior (in 1 second) is button S again 2Once, the liquid level setting value increases by 10 (promptly 10%); If press setting key S 2Do not loose one's grip, then numerical value is with t 3(as the 0.2 second) time interval increases continuously.If surpass t 2(as 1 second) is button S not 2, then withdraw from set condition, and setting value write E 2Among the PROM.Finish the setting of upper limit liquid level, bottom limit level, alarm liquid level as stated above.
Below with reference to Fig. 5 the water pump operation control procedure is described.
Under normal circumstances, liquid level is set and should be satisfied 1 section (upper limit liquid level)＞2 sections (bottom limit level)＞3 section (alarm liquid level).When liquid level reached or be higher than 1 section setting value (upper limit liquid level), sensor was sent upper limit liquid level signal, and the liquid level numeric display unit shows 100%, and 10 light beams of light beam display device are bright entirely.Single chip microcomputer sends the triode V of termination of pumping signal by controlling output circuit 41～V 46In the output of certain transistor collector or the relay K that drives by collector 41-K 46In certain group contact output.Equally, when liquid level reaches or be lower than 2 sections setting values (bottom limit level), provide the bottom limit level signal; When liquid level reaches or be lower than 3 sections setting values (alarm liquid level), provide alerting signal.Single-chip microcomputer can automatically controlled water pump starts or sends the sound and light alarm signal.
This embodiment can show any liquid level in the water tank, and can set and control liquid level as required, need only be by a key (S 2) can carry out the liquid level setting, easy to operation.

Claims (2)

1. intelligent multi-stage liquid level display controller, it comprises:
(1), liquid level sensor;
(2), single chip microcomputer;
(3), liquid level display circuit;
(4), controlling output circuit;
It is characterized in that
(1.1), liquid level sensor (1) is by linking to each other, place the electrode A of water tank bottom with positive source and placing the electrode a of differing heights in the water tank nForm, be in the electrode a of differing heights nPass through resistance R nLink to each other with one group of I/O mouth of single chip microcomputer, simultaneously, electrode a nPass through R N 'Ground connection (wherein n＞2);
(2.1), the clock circuit of single chip microcomputer (2) is by resistance R 21With capacitor C 21Its resistance R of series connection back 21Termination power V CC, its capacitor C 21End ground connection GND, the OSC of its line mid point order sheet microcomputer 1Pin; The reset circuit of single chip microcomputer is by resistance R 22With button S 1After the series connection, resistance R 22Termination power, button S 1End ground connection GND, the SET pin of its line mid point order sheet microcomputer, the V of single chip microcomputer CCTermination power, GND holds ground connection, PA 0～7, PB 0～6And PC 0～5Be the I/O mouth;
(3.1), the liquid level display circuit is made up of digital display circuit (3) and/or light beam display circuit (3 ');
(4.1), controlling output circuit is by one group of (M) delivery outlet and resistance R of single chip microcomputer MWith opener electrode triode V MForm, perhaps by one group of (M) delivery outlet and resistance R of single chip microcomputer M ', triode V M 'And relay K MForm (wherein M 〉=1);
(5.1) this intelligence multi-stage liquid level display controller also comprises by resistance R 51With button S 2After the series connection, resistance R 51The V of order sheet microcomputer (2) CCPin (power supply), the GND pin of button S2 order sheet microcomputer (2) (), a certain input port (I/O mouth) of the mid point order sheet microcomputer (2) of its line and the interior electricity erasable memorizer (E of single chip microcomputer (2) 2PROM) form liquid level initialization circuit (5).
2,, it is characterized in that the I/O mouth (PB of said liquid level digital display circuit (3) by single chip microcomputer according to the said intelligent multi-stage liquid level display controller of claim 1 2.3.4), three seven sections light-emitting nixie tube LED 1, triode V3 1～V 33And resistance R 31～R 33Form bit driver circuit; I/O mouth (PA by single chip microcomputer 0-7) by resistance (R 34～R 311) connection light-emitting nixie tube LED 1Form segment drive circuit; Light beam display circuit (3 ') links to each other another termination triode (V of light emitting diode by single chip microcomputer n I/O mouth by n resistance with n light emitting diode 34) collector, triode (V 34) base stage by resistance (R 322) certain I/O mouth of order sheet microcomputer (2), triode (V 34) grounded emitter (wherein n＞2).
CN 98202695 1998-04-01 1998-04-01 Intellectual multi-stage level indication controller Expired - Fee Related CN2328000Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98202695 CN2328000Y (en) 1998-04-01 1998-04-01 Intellectual multi-stage level indication controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98202695 CN2328000Y (en) 1998-04-01 1998-04-01 Intellectual multi-stage level indication controller

Publications (1)

Publication Number Publication Date
CN2328000Y true CN2328000Y (en) 1999-07-07

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Application Number Title Priority Date Filing Date
CN 98202695 Expired - Fee Related CN2328000Y (en) 1998-04-01 1998-04-01 Intellectual multi-stage level indication controller

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102032938A (en) * 2010-11-11 2011-04-27 苏州合欣美电子科技有限公司 Water flow detection circuit of ecological house
CN101368838B (en) * 2008-07-25 2011-10-05 陈建海 Water level sensor for automobile and its control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101368838B (en) * 2008-07-25 2011-10-05 陈建海 Water level sensor for automobile and its control method
CN102032938A (en) * 2010-11-11 2011-04-27 苏州合欣美电子科技有限公司 Water flow detection circuit of ecological house

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