CN204064594U - Line formula water sensor - Google Patents
Line formula water sensor Download PDFInfo
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- CN204064594U CN204064594U CN201420411196.9U CN201420411196U CN204064594U CN 204064594 U CN204064594 U CN 204064594U CN 201420411196 U CN201420411196 U CN 201420411196U CN 204064594 U CN204064594 U CN 204064594U
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Abstract
The utility model discloses line formula water sensor, relate to a kind of leakage checkout equipment; This line formula water sensor comprises power supply EMI filter circuit, soft-start circuit, power circuit, indicator light circuit, alerting signal EMI filter circuit, overvoltage crowbar, alerting signal output circuit, optical alarm circuit, sound alarm circuit and single-chip microcomputer.The utility model carries out power supply and output relay contact signal by RJ45 type netting twine, will be able to integrate with various supervisory system, realizes the control of remote alarms and remote equipment and more easily realizes in-site installation and connection; With detection cable etc. with the use of, after detection cable detects the seepage of conductive fluid, the utility model line formula water sensor can send sound and light alarm.The utility model structure is simple, and cost is low, and precision is high.
Description
Technical field
The utility model relates to a kind of leakage checkout equipment, particularly relate to a kind of with detect cable with the use of water sensor.
Background technology
The places such as communication base station, machine room, hotel, warehouse, restaurant, archives and equipment enclosure, all need to prevent leakage usually, but are not easily therefore easily perceived by humans because of leakage, therefore liquid large area occurs again most probably leak, thus cause unpredictable serious consequence.Traditional water sensor has complex structure, installs inconvenience, the problems such as sensitivity is low.
Utility model content
The purpose of this utility model carries line-outgoing type water sensor; This line formula water sensor structure is simple, and cost is low, and precision is high, and in-site installation and easy to connect.
The technical solution of the utility model is as follows:
The utility model is line formula water sensor, comprises single-chip microcomputer;
Also comprise:
Power supply EMI filter circuit, power supply inputs from the input end of described power supply EMI filter circuit;
Soft-start circuit, its input end is connected with the output terminal of power supply EMI filter circuit, power supply signal is divided into two-way after flowing into the input end of soft-start circuit, the first via is connected with the source electrode of P channel MOS tube Q3, second tunnel is connected with a parallel circuit be made up of resistance R17, electric capacity C20 and voltage stabilizing diode D5, wherein, power supply signal first passes through its anode again through the negative electrode of voltage stabilizing diode D5; Power supply signal is divided into two-way again after flowing through this parallel circuit, and the first via is ground connection after resistance R15, and the second tunnel is connected with the grid of metal-oxide-semiconductor Q3 after resistance R16, and the drain electrode of metal-oxide-semiconductor Q3 is the output terminal of soft-start circuit;
Power circuit, its input end is connected with the output terminal of soft-start circuit, for being export the power supply signal step-down of input after 5V direct current; The output terminal of described power circuit is connected with the VCC pin of single-chip microcomputer;
Signal EMI filter circuit, leakage signal inputs from the input end of described signal EMI filter circuit;
Overvoltage crowbar, its input end is connected with the output terminal of signal EMI filter circuit; The output terminal of overvoltage crowbar exports four signals LS1, LS2, LS3 and LS4, these four signals LS1, LS2, LS3 and LS4 respectively with P1.0, P1.1, P1.2, P1.3 of single-chip microcomputer this four pins are corresponding is connected; The output terminal of power circuit is also connected with overvoltage crowbar;
Optical alarm circuit, comprises resistance R2 and light emitting diode D8; The output terminal of power circuit is connected with the anode of light emitting diode D8 after resistance R2, and the negative electrode of light emitting diode D8 is connected with the P3.4 pin of single-chip microcomputer;
Sound alarm circuit, comprises PNP type triode Q1; The output terminal of power circuit is connected with the emitter of triode Q1 after resistance R12, collector ground connection after loudspeaker LS1 of triode Q1, and the collector of triode Q1 is also connected with the negative electrode of diode D4, the plus earth of diode D4; The P3.0 pin of single-chip microcomputer is connected with the base stage of triode Q1 after resistance R7;
Alerting signal output circuit, comprises NPN type triode Q2 and relay K 2; The output terminal of power circuit is connected with coil one end of relay K 2 after resistance R11, and the other end of the coil of relay K 2 is connected with the collector of triode Q2, the grounded emitter of triode Q2; The output terminal of power circuit is also connected with the negative electrode of diode D3 after resistance R11, and the anode of diode D3 is connected with the collector of triode Q2; The output terminal of power circuit is also connected with the base stage of triode Q2 after resistance R10, resistance R9, also draws the P3.3 pin that single line is connected to single-chip microcomputer between resistance R10 and resistance R9;
Power supply inputs from by RJ45 type network cable jack, this RJ45 type network cable jack is the connection terminal JP3 comprising 8 pins, 1st pin, the 2nd pin of connection terminal JP3 are connected with the 8th pin, 3rd pin of connection terminal JP3 and the 8th pin, as the input end of power supply, are connected with the input end of described power supply EMI filter circuit; 4th pin and the 5th pin of connection terminal JP3 are unsettled; The contact of relay K 2 is normally closed contact, and these two ends, contact are connected with the 7th pin with the 6th pin of connection terminal JP3 respectively.
More preferably, the utility model also comprises the indicator light circuit being used to indicate described line formula water sensor and whether being energized.
More preferably, described indicator light circuit comprises resistance R1 and light emitting diode D7, and the output terminal of described power circuit is connected with the anode of light emitting diode D7 after resistance R1, the cathode ground connection of described light emitting diode D7.
More preferably, the utility model also comprises single chip circuit, and described single chip circuit is made up of the electrify restoration circuit be connected with single-chip microcomputer, crystal oscillating circuit and mute circuit.
The beneficial effects of the utility model:
This line formula water sensor structure is simple, and cost is low, and precision is high, and in-site installation and easy to connect
1, structure is simple, reliability is high, easy care and easy and simple to handle, never ignores arbitrary warning, also can not false alarm;
2, quick detection, real-time response, make leakage be reduced to minimum hazard level;
3, there is the contact signal of relay to export, can will integrate with various supervisory system, realize the control of remote alarms and remote equipment;
4, to be powered by RJ45 type cable interface and the contact signal of output relay, more easily realize in-site installation and connection.
Accompanying drawing explanation
Fig. 1 is module frame chart of the present utility model;
Fig. 2 is power supply EMI filter circuit and soft-start circuit;
Fig. 3 is power circuit;
Fig. 4 is alerting signal EMI filter circuit and overvoltage crowbar;
Fig. 5 is optical alarm circuit and indicator light circuit;
Fig. 6 is sound alarm circuit;
Fig. 7 is alerting signal output circuit;
Fig. 8 is the wiring diagram of connection terminal JP3;
Fig. 9 is single chip circuit.
Embodiment
In order to better the utility model is described, be now described further with accompanying drawing in conjunction with the embodiments.
As Fig. 1; the utility model is line formula water sensor, comprises power supply EMI filter circuit 10, soft-start circuit 11, power circuit 12, alerting signal EMI filter circuit 20, overvoltage crowbar 21, alerting signal output circuit 30, optical alarm circuit 31, sound alarm circuit 32 and single-chip microcomputer 40.More preferably, the utility model also comprises the indicator light circuit 13 being used to indicate the utility model and whether being energized.
Particularly, power supply EMI filter circuit 10, soft-start circuit 11 are connected successively with power circuit 12.Power supply inputs from the input end of described power supply EMI filter circuit 10; The power supply signal step-down of input is export after 5V direct current by power circuit 12; to give, this reality is novel carries out in-line power, powers namely to indicator light circuit 13, overvoltage crowbar 21, alerting signal output circuit 30, optical alarm circuit 31, sound alarm circuit 32 and single-chip microcomputer 40.
The utility model with detect cable etc. with the use of; after detection cable detects the seepage of conductive fluid; the input end of the leakage signal detected from described signal EMI filter circuit 20 can be inputted, then be input to single-chip microcomputer 40 after overvoltage crowbar 20.After single-chip microcomputer 40 receives this signal, issue a signal to optical alarm circuit 31 and sound alarm circuit 32 to send sound and light alarm.In addition, after single-chip microcomputer 40 receives leakage signal, also can issue a signal to alerting signal output circuit 30, the contact signal of alerting signal output circuit 30 meeting output relay, by the contact signal of this relay, the utility model can be integrated mutually with various supervisory system, realizes the control of remote alarms and remote equipment.
Fig. 2 is power supply EMI filter circuit 10 and soft-start circuit 11, power supply inputs from the input end of described power supply EMI filter circuit 10, power supply EMI filter circuit 10 plays and suppresses high frequency interference in power supply on impact of the present utility model, also inhibits the interference of the utility model to power supply network simultaneously.
The input end of soft-start circuit 11 is connected with the output terminal of power supply EMI filter circuit 10, power supply signal is divided into two-way after flowing into the input end of soft-start circuit 11, the first via is connected with the source electrode of P channel MOS tube Q3, second tunnel is connected with a parallel circuit be made up of resistance R17, electric capacity C20 and voltage stabilizing diode D5, wherein, power supply signal first passes through its anode again through the negative electrode of voltage stabilizing diode D5; Power supply signal is divided into two-way again after flowing through this parallel circuit, and the first via is ground connection after resistance R15, and the second tunnel is connected with the grid of metal-oxide-semiconductor Q3 after resistance R16, and the drain electrode of metal-oxide-semiconductor Q3 is the output terminal of soft-start circuit 11; The introducing of soft-start circuit 11 is to support hot plug.
Fig. 3 is power circuit 12, and wherein U1 is LM2576 power supply IC, and the output of described power circuit 12 is direct current 5V.
Fig. 4 is alerting signal EMI filter circuit 20 and overvoltage crowbar 21; Leakage signal inputs from the input end of described signal EMI filter circuit 20; Overvoltage crowbar 21, its input end is connected with the output terminal of signal EMI filter circuit 20; The output terminal of overvoltage crowbar exports four signals LS1, LS2, LS3 and LS4, these four signals LS1, LS2, LS3 and LS4 respectively with P1.0, P1.1, P1.2, P1.3 of single-chip microcomputer 40 this four pins are corresponding is connected.
Fig. 5 is optical alarm circuit 31 and indicator light circuit 13; Optical alarm circuit 31, comprises resistance R2 and light emitting diode D8; The output terminal of power circuit 12 is connected with the anode of light emitting diode D8 after resistance R2, and the negative electrode of light emitting diode D8 is connected with the P3.4 pin of single-chip microcomputer 40; Single-chip microcomputer 40 controls optical alarm circuit 31 by the high electronegative potential that P3.4 pin exports and whether carries out light warning.
As mentioned above, more preferably, the utility model also comprises the indicator light circuit 13 being used to indicate described line formula water sensor and whether being energized.Described indicator light circuit 13 comprises resistance R1 and light emitting diode D7, and the output terminal of described power circuit 12 is connected with the anode of light emitting diode D7 after resistance R1, the cathode ground connection of described light emitting diode D7.When after the utility model energising, indicator light circuit 13 is luminous, shows normal power-up.
Fig. 6 is sound alarm circuit 32, comprises PNP type triode Q1; The output terminal of power circuit 12 is connected with the emitter of triode Q1 after resistance R12, collector ground connection after loudspeaker LS1 of triode Q1, and the collector of triode Q1 is also connected with the negative electrode of diode D4, the plus earth of diode D4; The P3.0 pin of single-chip microcomputer 40 is connected with the base stage of triode Q1 after resistance R7; Single-chip microcomputer 40 controls sound alarm circuit 31 by the high electronegative potential that P3.0 pin exports and whether carries out acoustic alarm.
Fig. 7 is alerting signal output circuit 30, comprises NPN type triode Q2 and relay K 2; The output terminal of power circuit 12 is connected with coil one end of relay K 2 after resistance R11, and the other end of the coil of relay K 2 is connected with the collector of triode Q2, the grounded emitter of triode Q2; The output terminal of power circuit 12 is also connected with the negative electrode of diode D3 after resistance R11, and the anode of diode D3 is connected with the collector of triode Q2; The output terminal of power circuit 12 is also connected with the base stage of triode Q2 after resistance R10, resistance R9, also draws the P3.3 pin that single line is connected to single-chip microcomputer 40 between resistance R10 and resistance R9.Single-chip microcomputer 40 carrys out the opening and closing situation of the contact of pilot relay K2 by the high electronegative potential that P3.3 pin exports.Relay K 2 normally closed contact, when the utility model receives leakage signal, single-chip microcomputer 40 is by the disconnection of the contact of P3.3 pin pilot relay K2.Relay K 2 adopts the benefit of normally closed contact to be for preventing lead short circuit, and cannot report to the police, and cannot know open circuit.
Power supply inputs from by RJ45 type network cable jack, this RJ45 type network cable jack is the connection terminal JP3 comprising 8 pins, as shown in Figure 8,1st pin, the 2nd pin of connection terminal JP3 are connected with the 8th pin, 3rd pin of connection terminal JP3 and the 8th pin, as the input end of power supply, are connected with the input end of described power supply EMI filter circuit 10; 4th pin and the 5th pin of connection terminal JP3 are unsettled; The contact of relay K 2 is normally closed contact, and these two ends, contact are connected with the 7th pin with the 6th pin of connection terminal JP3 respectively.The cable interface that the utility model adopts, more easily realizes in-site installation and connection.
As shown in Figure 9, the utility model also comprises single chip circuit, and described single chip circuit is made up of electrify restoration circuit, crystal oscillating circuit and the mute circuit be connected with single-chip microcomputer 40.Mute circuit is made up of resistance R6 and button K1, eliminates the acoustic alarm that sound alarm circuit 32 sends for the utility model after reporting to the police.
Claims (4)
1. line formula water sensor, comprises single-chip microcomputer, it is characterized in that, also comprises:
Power supply EMI filter circuit, power supply inputs from the input end of described power supply EMI filter circuit;
Soft-start circuit, its input end is connected with the output terminal of power supply EMI filter circuit, power supply signal is divided into two-way after flowing into the input end of soft-start circuit, the first via is connected with the source electrode of P channel MOS tube Q3, second tunnel is connected with a parallel circuit be made up of resistance R17, electric capacity C20 and voltage stabilizing diode D5, wherein, power supply signal first passes through its anode again through the negative electrode of voltage stabilizing diode D5; Power supply signal is divided into two-way again after flowing through this parallel circuit, and the first via is ground connection after resistance R15, and the second tunnel is connected with the grid of metal-oxide-semiconductor Q3 after resistance R16, and the drain electrode of metal-oxide-semiconductor Q3 is the output terminal of soft-start circuit;
Power circuit, its input end is connected with the output terminal of soft-start circuit, for being export the power supply signal step-down of input after 5V direct current; The output terminal of described power circuit is connected with the VCC pin of single-chip microcomputer;
Signal EMI filter circuit, leakage signal inputs from the input end of described signal EMI filter circuit;
Overvoltage crowbar, its input end is connected with the output terminal of signal EMI filter circuit; The output terminal of overvoltage crowbar exports four signals LS1, LS2, LS3 and LS4, these four signals LS1, LS2, LS3 and LS4 respectively with P1.0, P1.1, P1.2, P1.3 of single-chip microcomputer this four pins are corresponding is connected; The output terminal of power circuit is also connected with overvoltage crowbar;
Optical alarm circuit, comprises resistance R2 and light emitting diode D8; The output terminal of power circuit is connected with the anode of light emitting diode D8 after resistance R2, and the negative electrode of light emitting diode D8 is connected with the P3.4 pin of single-chip microcomputer;
Sound alarm circuit, comprises PNP type triode Q1; The output terminal of power circuit is connected with the emitter of triode Q1 after resistance R12, collector ground connection after loudspeaker LS1 of triode Q1, and the collector of triode Q1 is also connected with the negative electrode of diode D4, the plus earth of diode D4; The P3.0 pin of single-chip microcomputer is connected with the base stage of triode Q1 after resistance R7;
Alerting signal output circuit, comprises NPN type triode Q2 and relay K 2; The output terminal of power circuit is connected with coil one end of relay K 2 after resistance R11, and the other end of the coil of relay K 2 is connected with the collector of triode Q2, the grounded emitter of triode Q2; The output terminal of power circuit is also connected with the negative electrode of diode D3 after resistance R11, and the anode of diode D3 is connected with the collector of triode Q2; The output terminal of power circuit is also connected with the base stage of triode Q2 after resistance R10, resistance R9, also draws the P3.3 pin that single line is connected to single-chip microcomputer between resistance R10 and resistance R9;
Power supply inputs from by RJ45 type network cable jack, this RJ45 type network cable jack is the connection terminal JP3 comprising 8 pins, 1st pin, the 2nd pin of connection terminal JP3 are connected with the 8th pin, 3rd pin of connection terminal JP3 and the 8th pin, as the input end of power supply, are connected with the input end of described power supply EMI filter circuit; 4th pin and the 5th pin of connection terminal JP3 are unsettled; The contact of relay K 2 is normally closed contact, and these two ends, contact are connected with the 7th pin with the 6th pin of connection terminal JP3 respectively.
2. line formula water sensor as claimed in claim 1, is characterized in that: also comprise the indicator light circuit being used to indicate described line formula water sensor and whether being energized.
3. line formula water sensor as claimed in claim 2, it is characterized in that: described indicator light circuit comprises resistance R1 and light emitting diode D7, the output terminal of described power circuit is connected with the anode of light emitting diode D7 after resistance R1, the cathode ground connection of described light emitting diode D7.
4. line formula water sensor as claimed in claim 1, it is characterized in that: also comprise single chip circuit, described single chip circuit is made up of the electrify restoration circuit be connected with single-chip microcomputer, crystal oscillating circuit and mute circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411196.9U CN204064594U (en) | 2014-07-24 | 2014-07-24 | Line formula water sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411196.9U CN204064594U (en) | 2014-07-24 | 2014-07-24 | Line formula water sensor |
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| Publication Number | Publication Date |
|---|---|
| CN204064594U true CN204064594U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420411196.9U Active CN204064594U (en) | 2014-07-24 | 2014-07-24 | Line formula water sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022132452A1 (en) * | 2020-12-15 | 2022-06-23 | Zodiac Pool Systems Llc | Battery disconnection using water sensing for underwater battery-powered pool cleaning devices |
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2014
- 2014-07-24 CN CN201420411196.9U patent/CN204064594U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022132452A1 (en) * | 2020-12-15 | 2022-06-23 | Zodiac Pool Systems Llc | Battery disconnection using water sensing for underwater battery-powered pool cleaning devices |
| EP4293333A3 (en) * | 2020-12-15 | 2024-03-06 | Zodiac Pool Systems LLC | Battery disconnection using water sensing for underwater battery-powered pool cleaning devices |
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| GR01 | Patent grant |