CN210331463U - Intelligent water cannon electromagnetic valve closed-loop feedback circuit - Google Patents
Intelligent water cannon electromagnetic valve closed-loop feedback circuit Download PDFInfo
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- CN210331463U CN210331463U CN201921075772.6U CN201921075772U CN210331463U CN 210331463 U CN210331463 U CN 210331463U CN 201921075772 U CN201921075772 U CN 201921075772U CN 210331463 U CN210331463 U CN 210331463U
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Abstract
The utility model belongs to the technical field of fire water monitor closed-loop control, concretely relates to intelligent water monitor solenoid valve closed-loop feedback circuit, including singlechip and solenoid valve, the solenoid valve passes through the cable and is connected with the singlechip electricity, whether singlechip control solenoid valve circular telegram still is provided with relay and opto-coupler between singlechip and solenoid valve, and the opto-coupler concatenates between the I/O foot of relay and singlechip, and the input of solenoid valve coil circuit, light current power supply and opto-coupler is connected at two normally closed contact both ends of relay; two ends of two normally open contacts of the relay are connected with the electromagnetic valve coil loop and the power supply. The technical scheme of the utility model is that the acquisition circuit is arranged between the single chip microcomputer and the electromagnetic valve, the electromagnetic valve can be monitored in the opening and closing state by the relay and the optocoupler, and a closed loop is formed in the automatic control system; the state of the electromagnetic valve is monitored, and when the electromagnetic state is abnormal and the control failure or reliability reduction of the electromagnetic valve switch closing control signal is caused by various reasons, the electromagnetic valve driving power supply is cut off to stop the electromagnetic valve.
Description
Technical Field
The utility model belongs to the technical field of the fire water monitor closed-loop control, particularly, relate to an intelligence water monitor solenoid valve closed-loop feedback circuit.
Background
The fire-fighting water cannon is fire extinguishing equipment which uses water as a medium and remotely extinguishes fire. The fire monitor is suitable for places such as petrochemical enterprises, tank storage areas, hangars, warehouses, ports and docks, garages and the like, and is an ideal vehicle-mounted fire monitor for fire trucks. The fire water monitor comprises: automatic scanning water-shooting high-altitude water monitor, solid manual fire water monitor, automatic searching fire water monitor and electric control fire water monitor.
The fire water monitor consists of a fire monitor body and a field controller. The fire extinguishing system combines a micro-control technology, an infrared sensing detection technology, a mechanical rotation control technology and an image transmission technology, automatically finds a fire point, accurately positions the fire point and effectively and quickly extinguishes a fire source; the direct-current columnar or spray pattern scattering water spraying is automatically carried out according to the distance of the ignition point, so that the fire is effectively extinguished, and the safety of people and property is protected; the system has the functions of field manual operation control and image display; the fire source detection can be forcibly started according to linkage signals of other fire alarm systems; the infrared double-waveband detection technology is adopted to effectively detect the fire source and improve the environmental interference resistance; and ground sensitivity parameter setting and debugging can be carried out.
The electromagnetic valve control of the present intelligent fire water monitor is realized by an open-loop control circuit, namely, the control is only carried out on the opening and closing of the valve, and the opening and closing states are not monitored.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at is an intelligence water cannon solenoid valve closed loop feedback circuit to solve the solenoid valve control of current intelligent fire water cannon, all realize through open loop control circuit, the existence is only opened the closure to the valve and is controlled, does not carry out the problem of control to opening with the closure state.
In order to solve the problems, the utility model provides an intelligent water cannon solenoid valve closed loop feedback circuit, which comprises a single chip microcomputer and a solenoid valve, wherein the solenoid valve is electrically connected with the single chip microcomputer through a cable, the single chip microcomputer controls whether the solenoid valve is electrified or not, a relay and an optical coupler are also arranged between the single chip microcomputer and the solenoid valve, the optical coupler is connected between an I/O pin of the relay and an I/O pin of the single chip microcomputer in series, and two ends of two normally closed contacts of the relay are connected with a solenoid valve coil loop, a weak current; two ends of two normally open contacts of the relay are connected with the electromagnetic valve coil loop and the power supply.
Furthermore, when the relay is in a power-off state, a normally closed contact of the relay inputs a weak current power supply to the input end of the optocoupler after passing through the coil of the electromagnetic valve, and an I/O pin of the singlechip judges that the electromagnetic valve is in a closed state according to the collected signals.
Further, when the relay is in an electrified state, the relay is connected with the electromagnetic valve and the power supply loop, the normally closed contact of the relay is disconnected at the moment, the single chip microcomputer cannot acquire a signal output by the optocoupler, and the electromagnetic valve is judged to be in a connected state.
The utility model has the advantages that: the technical scheme of the utility model is that the acquisition circuit is arranged between the single chip microcomputer and the electromagnetic valve, the electromagnetic valve can be monitored in the opening and closing state by the relay and the optocoupler, and a closed loop is formed in the automatic control system; the state of the electromagnetic valve is monitored, and when the electromagnetic state is abnormal and the control failure or reliability reduction of the electromagnetic valve switch closing control signal is caused by various reasons, the electromagnetic valve driving power supply is cut off to stop the electromagnetic valve. The design is beneficial to the safety of the use site, the unreliability of the open-loop control and the probability of other losses to the site.
Drawings
In the drawings:
fig. 1 is a schematic diagram of the circuit structure of the present invention;
wherein, 1 is the solenoid valve, 2 is the relay, 3 is the opto-coupler, and 4 is the singlechip.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, a closed-loop feedback circuit of an intelligent water cannon electromagnetic valve comprises a single-chip microcomputer 4 and an electromagnetic valve 1, wherein the electromagnetic valve 1 is used for controlling a water supply pipeline of the intelligent water cannon, the electromagnetic valve 1 is connected in series with the water supply pipeline of the intelligent water cannon, the electromagnetic valve 1 is connected with a 220V power supply through a cable, a relay 2 is arranged on a coil loop of the electromagnetic valve, a normally open contact of the relay 2 is connected in series in the coil loop of the electromagnetic valve, the relay 2 is electrically connected with the single-chip microcomputer 4 through a cable, the single-chip microcomputer 4 controls the on-off of the relay through a driving circuit, an optical coupler 3 is further arranged between the single-chip microcomputer 4 and the electromagnetic valve 1, the optical coupler 3 is connected in series between the relay 2 and an I/O pin of; one end of two normally open contacts of the relay 2 is connected with a coil loop of the electromagnetic valve 1, and the other end is connected with a 220V power supply.
Specifically, when the relay 2 is in a power-off state, the +12V is input to the input end of the optical coupler 3 through the coil of the electromagnetic valve 1 by the normally closed contact of the relay 2, and the I/O pin of the singlechip 4 judges that the electromagnetic valve 1 is in a closed state according to the collected signal.
Under the state that relay 2 is being got electric, relay 2 switch on solenoid valve 1 and 220V power return circuit, relay 2's normally closed contact disconnection this moment, and singlechip 4 can not gather the signal of 3 outputs of opto-coupler, and the singlechip judges solenoid valve 1 to be the on-state in view of the above.
The foregoing detailed description has provided for the present application and the principles and embodiments of the present application can be illustrated by specific examples, which are provided only for the purpose of facilitating understanding of the method and the core concept of the present application, and persons skilled in the art may change the embodiments and application scope according to the concept of the present application.
Claims (3)
1. The utility model provides an intelligence water cannon solenoid valve closed loop feedback circuit, includes singlechip and solenoid valve, and the solenoid valve passes through the cable and is connected with the monolithic is electromechanical, and whether the monolithic is controlled the solenoid valve and is switched on its characterized in that: a relay and an optical coupler are also arranged between the single chip microcomputer and the electromagnetic valve, the optical coupler is connected between the relay and an I/O pin of the single chip microcomputer in series, and two ends of two normally closed contacts of the relay are connected with a coil loop of the electromagnetic valve, a weak current power supply and an input end of the optical coupler; two ends of two normally open contacts of the relay are connected with the electromagnetic valve coil loop and the power supply.
2. The closed-loop feedback circuit of the intelligent water cannon solenoid valve of claim 1, wherein: and under the power-off state of the relay, a normally closed contact of the relay inputs a weak current power supply to the input end of the optocoupler after passing through the coil of the electromagnetic valve, and an I/O pin of the singlechip judges that the electromagnetic valve is in a closed state according to the acquired signal.
3. The closed-loop feedback circuit of the intelligent water cannon solenoid valve of claim 1, wherein: when the relay is in a power-on state, the relay is connected with the electromagnetic valve and the power supply loop, the normally closed contact of the relay is disconnected at the moment, the single chip microcomputer cannot acquire a signal output by the optocoupler, and the electromagnetic valve is judged to be in a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075772.6U CN210331463U (en) | 2019-07-11 | 2019-07-11 | Intelligent water cannon electromagnetic valve closed-loop feedback circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921075772.6U CN210331463U (en) | 2019-07-11 | 2019-07-11 | Intelligent water cannon electromagnetic valve closed-loop feedback circuit |
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| Publication Number | Publication Date |
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| CN210331463U true CN210331463U (en) | 2020-04-17 |
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| CN201921075772.6U Active CN210331463U (en) | 2019-07-11 | 2019-07-11 | Intelligent water cannon electromagnetic valve closed-loop feedback circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327721A (en) * | 2020-11-20 | 2021-02-05 | 北京捍御者信息科技有限公司 | Control system and method of feedback switch |
-
2019
- 2019-07-11 CN CN201921075772.6U patent/CN210331463U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327721A (en) * | 2020-11-20 | 2021-02-05 | 北京捍御者信息科技有限公司 | Control system and method of feedback switch |
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Address after: No. 176, Yong'an Road, Gongyi City, Zhengzhou City, Henan Province Patentee after: Henan Liangda Space Fire Technology Co., Ltd Address before: No. 176, Yong'an Road, Gongyi City, Zhengzhou City, Henan Province Patentee before: GONGYI LIANGDA TUBES Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |