CN205038527U - Cistern liquid level automatic monitoring device - Google Patents
Cistern liquid level automatic monitoring device Download PDFInfo
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- CN205038527U CN205038527U CN201520734191.4U CN201520734191U CN205038527U CN 205038527 U CN205038527 U CN 205038527U CN 201520734191 U CN201520734191 U CN 201520734191U CN 205038527 U CN205038527 U CN 205038527U
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- liquid level
- cistern
- chip microcomputer
- converter
- circuit
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- Control Of Non-Electrical Variables (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a cistern liquid level automatic monitoring device, including controller, liquid level collector, AD converter, liquid level switches device, keyboard control circuit and drive circuit. Cistern bottom installation hose, the one end of hose is installed in the water tank bottom, and the other end and the liquid level collector of hose are connected, and the signal output part of liquid level collector is connected with the signal input part of AD converter electricity. Keyboard control circuit's the signal output part and the signal output part of AD converter are connected with the signal input part electricity of controller. The utility model discloses it has following advantage to compare prior art: the utility model provides a pair of cistern liquid level automatic monitoring device carries out real time monitoring to the water level of a cistern, according to the characteristic of control object, and the height of the liquid level of real -time detection cistern to with begin to preset the threshold values and do the comparison, by single chip microcomputer control SSR solid state relay's the adjustment of carrying out the liquid level of cut -offfing, thus real time control cistern liquid level.
Description
Technical field
The utility model relates to a kind of monitoring device, in particular a kind of cistern liquid level automated watch-keeping facility.
Background technology
Current tank level control system has the system of simple mechanical type control device, also has the system that complex control device controls.Mechanical type Control system architecture is simple, with low cost.But this control device fault is many, and misoperation is many, and can only control separately, carries out with computing machine the more difficult realization that communicates.Existing AC voltage adjusting/frequency-converting speed-governing control system is the pressure transducer by being arranged on exit of pump pipeline, top hole pressure is become the simulating signal of standard industry electric signal, be transformed into digital signal be sent to single-chip microcomputer through enlarge leadingly, multy-way switching, A/D, through the comparison of single-chip microcomputer computing and given parameters, carry out PID arithmetic, draw adjustable parameter; Convert via D/A and input to fixed end to pressure regulation/RHVC, control the change of its output voltage, regulate motor speed, control cistern water level to reach, but cistern water level can not be controlled in real time.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of cistern liquid level automated watch-keeping facility, the water level of a cistern is monitored, according to the feature of monitored object, require the height of the liquid level detecting cistern in real time, and compare with beginning pre-set value, cut-off by Single-chip Controlling SSR solid-state relay the adjustment carrying out liquid level, finally reach the pre-set value of liquid level.If when detected value is higher than upper limit set value, requires to report to the police, disconnect SSR, control water pump and stop upper water; If detected value is less than lower limit set value, requires to report to the police, open SSR, control water pump and start upper water.Real-time display measurement value, thus realize the monitoring to cistern liquid level.
The utility model is achieved through the following technical solutions: a kind of cistern liquid level automated watch-keeping facility, comprise controller, liquid level collector, A/D converter, level display device, keyboard control circuit and driving circuit, columns base installs flexible pipe, one end of flexible pipe is arranged on water tank bottom, the other end of flexible pipe is connected with liquid level collector, the signal output part of liquid level collector is electrically connected with the signal input part of A/D converter, and the signal output part of keyboard control circuit and the signal output part of A/D converter are electrically connected with the signal input part of controller; The signal output part of described controller is electrically connected with the signal input part of level display device, driving circuit.
As the further optimization of such scheme, described controller comprises single-chip microcomputer and peripheral control circuits thereof, and described single-chip microcomputer is AT89C51 single-chip microcomputer.
As the further optimization of such scheme, described A/D converter is CAD571 converter, and described CAD571 converter is electrically connected with the I/O interface of AT89C51 single-chip microcomputer.
As the further optimization of such scheme, described controller comprises AT89C51 single-chip microcomputer, crystal oscillating circuit, reset circuit and exclusion circuit, and the signal output part of described AT89C51 single-chip microcomputer is electrically connected with the signal input part of crystal oscillating circuit, reset circuit, exclusion circuit.
As the further optimization of such scheme, described liquid level collector is SY-9411L-D type transmitter, the built-in pressure transducer of SY-9411L-D type transmitter and amplifying circuit.
As the further optimization of such scheme, described keyboard control circuit is eight key circuits, comprise button K1, K2, K3, K4, K5, K6, K7 and K8, one end ground connection of button K1, K2, K3, K4, K5, K6, K7 and K8, the other end of button K1, K2, K3, K4, K5, K6, K7 and K8 is corresponding corresponding with the two-way I/O interface P1.0 ~ P1.7 of AT89C51 single-chip microcomputer to be electrically connected.
Compared to existing technology, the beneficial effect of a kind of cistern liquid level automated watch-keeping facility that the utility model provides is embodied in the utility model:
What 1, the utility model provided provides a kind of cistern liquid level automated watch-keeping facility, sensor is by measuring cistern liquid level, outputting analog signal, by analog to digital converter, the simulating signal of input is converted to digital signal again, by the operation control of AT89C51 single-chip microcomputer, shown by LED, then by realizing carrying out regulable control to the liquid level of water body to the unlatching of valve, the driving arrangement of valve is motor.
What 2, the utility model provided provides a kind of cistern liquid level automated watch-keeping facility, the water level of a cistern is monitored, according to the feature of monitored object, the height of the liquid level of real-time detection cistern, and compare with the presetting threshold values of beginning, cut-off by Single-chip Controlling SSR solid-state relay the adjustment carrying out liquid level, thus control cistern liquid level in real time.
What 3, the utility model provided provide a kind of cistern liquid level automated watch-keeping facility comprises level display device, real-time display measurement value, realizes the real-time monitoring to cistern liquid level.If when real-time detected value is higher than upper limit setting threshold value, report to the police, disconnect SSR solid-state relay, Single-chip Controlling water pump stops upper water; If detected value is less than lower limit set threshold value, report to the police, open SSR solid-state relay, Single-chip Controlling water pump starts upper water.
Accompanying drawing explanation
Fig. 1 is the circuit structure block diagram of a kind of cistern liquid level automated watch-keeping facility of the present utility model.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
A kind of cistern liquid level automated watch-keeping facility, comprises controller, liquid level collector, A/D converter, level display device, keyboard control circuit and driving circuit.The signal output part of liquid level collector is electrically connected with the signal input part of controller through A/D converter, and the signal output part of keyboard control circuit is electrically connected with the signal input part of controller.The signal output part of controller is electrically connected with the signal input part of level display device and driving circuit.Columns base installs flexible pipe, and one end of flexible pipe is arranged on water tank bottom, and the other end of flexible pipe is connected with liquid level collector.
In this preferred embodiment, liquid level collector is SY-9411L-D type transmitter, the built-in pressure transducer of SY-9411L-D type transmitter and amplifying circuit.1 pin of SY-9411L-D type transmitter, 2 pin are signal and export (-), and 3 pin are driving voltage; 4 pin are ground; 5 pin, 6 pin are that signal exports (+).Preferably, installing 1 diameter at columns base is the flexible pipe of 5mm, and one end is arranged on water tank bottom; The other end is connected with sensor.When cistern height of water level changes, cause flexible pipe internal gas pressure to change, the sensor that then SY-9411L-D type transmitter is built-in converts voltage signal to air pressure, is transported to A/D converter.
In this preferred embodiment, controller comprises single-chip microcomputer and peripheral control circuits thereof, and described single-chip microcomputer is AT89C51 single-chip microcomputer.A/D converter is CAD571 converter, and described CAD571 converter is electrically connected with the I/O interface of AT89C51 single-chip microcomputer.A/D converter is that simulating signal is converted to digital signal, and the simulating signal of the Liquid level transmitted by sensor is converted to digital signal, then carries out the warning of LED display liquid level and pressure by the analyzing and processing of AT89C51 single-chip microcomputer.
Wherein, controller comprises AT89C51 single-chip microcomputer, crystal oscillating circuit, reset circuit and exclusion circuit.The signal output part of AT89C51 single-chip microcomputer is electrically connected with the signal input part of crystal oscillating circuit, reset circuit, exclusion circuit.
Level display device adopts three 7 sections of light-emitting diode displays, light-emitting diode display is the output block of single-chip microcomputer, be made up of some light emitting diodes, when LEDs ON, a corresponding LED pilot is at about 1.5V, working current every section is about 10mA, is directly connected on+5V level and charactron excessively bright causing can be made to damage, need connect the current-limiting resistance in a 100--300 Europe.The light emitting diode of LED inside has commoncathode and common-anode two kinds, be connected together by the inner all diode cathodes of LED or anode and drawn by com pin, and the other end of each luminescence segment is drawn out to respectively corresponding pin, during use with the LED data of concrete model for foundation.By lighting different LED fields, numeral 0,1 can be shown ..., 9 characters different with A, b, C, d, E, F etc. and more self-defined section of luminescence represent simple symbol.
The switch matrix that keyboard is made up of button is single-chip microcomputer input equipment, by key in data or order, realizes man-machine conversation.Keyboard can be divided into nonencoded keyboard and encoded keyboard two kinds.Nonencoded keyboard has parallel interface to scan and serial interface scanning, and what adopt in this preferred embodiment is serial line interface, and its composition is 8 keys, controls the parameter adjustment of whole detection system.Keyboard control circuit is eight key circuits, comprise button K1, K2, K3, K4, K5, K6, K7 and K8, one end ground connection of button K1, K2, K3, K4, K5, K6, K7 and K8, the other end of button K1, K2, K3, K4, K5, K6, K7 and K8 is corresponding corresponding with the two-way I/O interface P1.0 ~ P1.7 of AT89C51 single-chip microcomputer to be electrically connected.
What the utility model provided provides a kind of cistern liquid level automated watch-keeping facility, the water level of a cistern is monitored, according to the feature of monitored object, the height of the liquid level of real-time detection cistern, and compare with the presetting threshold values of beginning, cut-off by driving circuit control SSR solid-state relay the adjustment carrying out liquid level by single-chip microcomputer, thus control cistern liquid level in real time.What the utility model provided provide a kind of cistern liquid level automated watch-keeping facility comprises level display device, real-time display measurement value, realizes the real-time monitoring to cistern liquid level.If when real-time detected value is higher than upper limit setting threshold value, report to the police, disconnect SSR solid-state relay, Single-chip Controlling water pump stops upper water; If detected value is less than lower limit set threshold value, report to the police, open SSR solid-state relay, Single-chip Controlling water pump starts upper water.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (2)
1. a cistern liquid level automated watch-keeping facility, it is characterized in that: comprise controller, liquid level collector, A/D converter, level display device, keyboard control circuit and driving circuit, columns base installs flexible pipe, one end of flexible pipe is arranged on water tank bottom, the other end of flexible pipe is connected with liquid level collector, the signal output part of liquid level collector is electrically connected with the signal input part of A/D converter, and the signal output part of keyboard control circuit and the signal output part of A/D converter are electrically connected with the signal input part of controller; The signal output part of described controller is electrically connected with the signal input part of level display device, driving circuit;
Described controller comprises single-chip microcomputer and peripheral control circuits thereof, and described single-chip microcomputer is AT89C51 single-chip microcomputer;
Described A/D converter is CAD571 converter, and described CAD571 converter is electrically connected with the I/O interface of AT89C51 single-chip microcomputer;
Described controller comprises AT89C51 single-chip microcomputer, crystal oscillating circuit, reset circuit and exclusion circuit, and the signal output part of described AT89C51 single-chip microcomputer is electrically connected with the signal input part of crystal oscillating circuit, reset circuit, exclusion circuit;
Described liquid level collector is SY-9411L-D type transmitter, the built-in pressure transducer of SY-9411L-D type transmitter and amplifying circuit;
Level display device adopts three 7 sections of light-emitting diode displays, and light-emitting diode display is the output block of single-chip microcomputer, is made up of some light emitting diodes.
2. a kind of cistern liquid level automated watch-keeping facility according to claim 1, it is characterized in that: described keyboard control circuit is eight key circuits, comprise button K1, K2, K3, K4, K5, K6, K7 and K8, one end ground connection of button K1, K2, K3, K4, K5, K6, K7 and K8, the other end of button K1, K2, K3, K4, K5, K6, K7 and K8 is corresponding corresponding with the two-way I/O interface P1.0 ~ P1.7 of AT89C51 single-chip microcomputer to be electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734191.4U CN205038527U (en) | 2015-09-18 | 2015-09-18 | Cistern liquid level automatic monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734191.4U CN205038527U (en) | 2015-09-18 | 2015-09-18 | Cistern liquid level automatic monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN205038527U true CN205038527U (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520734191.4U Expired - Fee Related CN205038527U (en) | 2015-09-18 | 2015-09-18 | Cistern liquid level automatic monitoring device |
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| CN (1) | CN205038527U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678451A (en) * | 2017-09-30 | 2018-02-09 | 中山市民众镇民众中心小学 | A kind of water level automatic checkout and control system |
| CN109753090A (en) * | 2019-01-29 | 2019-05-14 | 洪恩流体科技有限公司 | Fire water-supply liquid level multi-path collector |
| CN112969344A (en) * | 2021-02-08 | 2021-06-15 | 哈尔滨工业大学 | Electric load heat dissipation water circulation control method based on single water tank liquid level monitoring |
-
2015
- 2015-09-18 CN CN201520734191.4U patent/CN205038527U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678451A (en) * | 2017-09-30 | 2018-02-09 | 中山市民众镇民众中心小学 | A kind of water level automatic checkout and control system |
| CN109753090A (en) * | 2019-01-29 | 2019-05-14 | 洪恩流体科技有限公司 | Fire water-supply liquid level multi-path collector |
| CN109753090B (en) * | 2019-01-29 | 2023-11-07 | 洪恩流体科技有限公司 | Multi-channel collector for fire-fighting water supply level |
| CN112969344A (en) * | 2021-02-08 | 2021-06-15 | 哈尔滨工业大学 | Electric load heat dissipation water circulation control method based on single water tank liquid level monitoring |
| CN112969344B (en) * | 2021-02-08 | 2022-10-11 | 哈尔滨工业大学 | Electric load heat dissipation water circulation control method based on single water tank liquid level monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20160918 |