CN217794240U - Intelligent fire water monitor integrated positioning detection circuit - Google Patents
Intelligent fire water monitor integrated positioning detection circuit Download PDFInfo
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- CN217794240U CN217794240U CN202221429700.9U CN202221429700U CN217794240U CN 217794240 U CN217794240 U CN 217794240U CN 202221429700 U CN202221429700 U CN 202221429700U CN 217794240 U CN217794240 U CN 217794240U
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Abstract
The utility model discloses an intelligent fire water monitor integrated positioning detection circuit, which comprises a horizontal sensor, a vertical sensor, an analog switch module, an operational amplification module and an MCU module, wherein the horizontal sensor and the vertical sensor are respectively connected with the analog switch module; an independent filter circuit is arranged between the horizontal sensor and the vertical sensor and the analog switch module; and an operational amplifier front-end filter circuit is arranged between the analog switch chip and the operational amplifier module. The utility model switches the horizontal sensor and the vertical sensor signals into the operational amplifier circuit through the MCU module, the circuit is simple, the number of fault points is small, and the cost is low; the anti-interference capability of the sensor is improved, and through multi-stage filtering, non-fire signals can be shielded, so that misjudgment of fire detection is reduced.
Description
Technical Field
The utility model relates to a fire extinguishing apparatus technical field, concretely relates to intelligence fire water monitor integration location detection circuit.
Background
The intelligent fire-fighting water monitor is also called automatic tracking fire-extinguishing device, and is a fire-fighting water monitor capable of automatically positioning fire source and accurately positioning fire by means of positioning detection technology, and is formed from fire-extinguishing device with automatic detection component and automatic control portion and fire-fighting liquid-supplying portion. In the scene of practical application intelligence fire gun, need fix a position the fire source, through the detection of level and perpendicular two directions, lock the fire source center to improve the rate of accuracy and the success rate of putting out a fire.
The horizontal and vertical detection sensors of the traditional intelligent fire monitor respectively adopt two sets of amplifying circuits, so that the cost is high, the calibration is complicated when the fire monitor leaves a factory, and faults are easily generated in the operation process.
Disclosure of Invention
The utility model provides an intelligence fire water monitor integration location detection circuitry to solve the problem that exists among the background art. The technical scheme of the utility model as follows:
the utility model provides an intelligence fire water monitor integration location detection circuit, includes horizontal sensor, vertical sensor, analog switch module, operational amplification module and MCU module, horizontal sensor and vertical sensor respectively with the analog switch module is connected, the analog switch module with the operational amplification module is connected, the operational amplification module with the MCU module is connected, the analog switch module still with the MCU module is connected.
Further, the utility model provides an intelligence fire water monitor integration location detection circuit has following characteristic: an independent filter circuit is arranged between the horizontal sensor and the vertical sensor and the analog switch module; and a filter circuit at the front end of the operational amplifier is arranged between the analog switch chip and the operational amplification module.
Further, the utility model provides an intelligence fire water monitor integration location detection circuit still has following characteristic: coupling capacitors are arranged between the power supply ends and the grounding ends of the horizontal sensor and the vertical sensor and are used for improving the anti-interference capability of the sensors; and a pull-down resistor is also arranged between the MCU module and the analog switch module and used for controlling the channel switching of the analog switch module.
The specific circuit implementation scheme is as follows:
the utility model provides an intelligence fire water monitor integration location detection circuitry, includes three line connection wares one, two, four line connection wares, two analog switch chip, operational amplifier of choosing one, three line connection wares one and two have 3 terminals respectively, are power supply terminal, earthing terminal and output respectively, four line connection wares have 4 terminals, are power supply terminal, input, control end, earthing terminal respectively, two analog switch chip of choosing one have 6 terminals, are power supply terminal, earthing terminal, first input, second input, output and control end respectively, operational amplifier has 5 terminals, is power supply terminal, earthing terminal, positive input, negative input end and output respectively. The first three-wire connector is used for connecting a horizontal sensor, the second three-wire connector is used for connecting a vertical sensor, and the fourth four-wire connector is used for connecting an MCU.
The output end of the first three-wire connector is connected with the first input end of the first one-of-two analog switch chip; the output end of the second three-wire connector is connected with the second input end of the either-or analog switch chip; the output end of the alternative analog switch chip is connected with the positive input end of the operational amplifier; the control end of the first one-of-two analog switch chip is connected with the first end of a first current-limiting resistor, and the second end of the first current-limiting resistor is connected with the control end of the four-wire connector; the output end of the operational amplifier is connected with the first end of the first isolation capacitor, and the second end of the first isolation capacitor is connected with the input end of the four-wire connector.
Furthermore, the output end of the first three-wire connector is also connected with a first end of a first filter resistor and a first end of a first filter capacitor, and a second end of the first filter resistor and a second end of the first filter capacitor are grounded; the output end of the second three-wire connector is also connected with a first end of a second filter resistor and a first end of a second filter capacitor, and a second end of the second filter resistor and a second end of the first filter capacitor are grounded.
Furthermore, the output end of the one-of-two analog switch chip is further connected with a first end of a third filter resistor, a first end of a third filter capacitor and a first end of a fourth filter capacitor, and a second end of the third filter resistor, a second end of the third filter capacitor and a second end of the fourth filter capacitor are grounded.
Furthermore, the negative input end of the operational amplifier is connected with the first end of the first amplifier resistor and the first end of the second amplifier resistor, the second end of the first amplifier resistor is grounded, and the second end of the second amplifier resistor is connected with the output end of the operational amplifier.
Furthermore, a first coupling capacitor is arranged between the power supply end and the grounding end of the first three-wire connector, and a second coupling capacitor is arranged between the power supply end and the grounding end of the second three-wire connector; the control end of the four-wire connector is connected with the first end of a first pull-down resistor, and the second end of the first pull-down circuit is grounded; and a third coupling capacitor, a fourth coupling capacitor, a fifth coupling capacitor and a sixth coupling capacitor are also arranged between the power supply end and the grounding end of the four-wire connector.
The technical effects of the utility model are that:
1. the utility model discloses an alternative analog switch chip, through the MCU module with horizontal sensor and vertical sensor signal switching to operational amplification circuit, compare prior art level and vertical detection sensor and adopt two sets of amplifier circuit, the advantage is that the circuit is succinct, the fault point is few, with low costs.
2. Before the signals of the horizontal sensor and the vertical sensor are output to the analog switch chip, an independent filter circuit is arranged, a sensor coupling capacitor is further arranged to improve the anti-interference capability of the sensor, an operational amplifier front-end filter circuit is arranged, parameters of a filter resistor and a capacitor are reasonably arranged through multi-stage filtering, non-fire signals can be shielded, and misjudgment of fire detection is reduced.
Drawings
FIG. 1 is a schematic diagram of the integrated positioning detection circuit of the intelligent fire monitor of the present invention;
FIG. 2 is a schematic circuit diagram of the integrated positioning and detecting circuit of the intelligent fire water monitor of the present invention;
FIG. 3 is a partial one of the schematic diagram of the circuit of FIG. 2;
FIG. 4 is a second portion of the schematic diagram of the circuit of FIG. 2;
fig. 5 is a partial three of the schematic diagram of the circuit of fig. 2.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides an intelligence fire water monitor integration location detection circuit, including horizontal sensor, vertical sensor, analog switch module, operational amplification module and MCU module, horizontal sensor and vertical sensor respectively with analog switch module connects, analog switch module with operational amplification module connects, operational amplification module with the MCU module is connected, analog switch module still with the MCU module is connected.
Further, the utility model provides an intelligence fire water monitor integration location detection circuit has following characteristic: an independent filter circuit is arranged between the horizontal sensor and the vertical sensor and the analog switch module; and an operational amplifier front-end filter circuit is arranged between the analog switch chip and the operational amplifier module.
Further, the utility model provides an intelligence fire water monitor integration location detection circuit still has following characteristic: a coupling capacitor is also arranged between the power supply end and the grounding end and is used for improving the anti-interference capability of the sensor; and a pull-down resistor is also arranged between the MCU module and the analog switch module and used for controlling the channel switching of the analog switch module.
As shown in fig. 2-5, the specific circuit implementation of the present invention is as follows:
the utility model provides an intelligence fire water monitor integration location detection circuitry, includes three line connection ware 3 level 1, three line connection ware 3 perpendicular 1, four line connection ware 3-4H, two select one analog switch chip IC1, operational amplifier IC2A, three line connection ware 3 level 1 and three line connection ware 3 perpendicular 1 have 3 terminals respectively, are supply terminal 3, earthing terminal 1 and output 2 respectively, four line connection ware 3-4H has 4 terminals, is supply terminal 1, input 2, control terminal 3, earthing terminal 4 respectively, two select one analog switch chip IC1 has 6 terminals, is supply terminal 5, earthing terminal 2, first input 3, second input 1, output 4 and control terminal 6 respectively, operational amplifier IC2A has 5 terminals, is supply terminal 4, positive input terminal 11, earthing terminal 3, negative input 2 and output 1 respectively. The three-wire connector Header3 horizontal 1 is used for connecting a horizontal sensor, the three-wire connector Header3 vertical 1 is used for connecting a vertical sensor, and the four-wire connector Header3-4H is used for connecting an MCU.
The output end 2 of the horizontal 1 of the three-wire connector Header3 is connected with the first input end 1 of the alternative analog switch chip IC 1; the output end 2 of the vertical 1 of the three-wire connector Header3 is connected with the second input end 1 of the alternative analog switch chip IC 1; the output end 4 of the alternative analog switch chip IC1 is connected with the positive input end 3 of the operational amplifier IC 2A; the control end 6 of the alternative analog switch chip IC1 is connected with the first end of a current-limiting resistor R1, and the second end of the current-limiting resistor R1 is connected with the control end 3 of the four-wire connector Header 3-4H; the output end 1 of the operational amplifier IC2A is connected with the first end of an isolation capacitor C6, and the second end of the isolation capacitor C6 is connected with the input end 2 of the four-wire connector Header 3-4H. In the present embodiment, the current limiting resistor R1=470 Ω functions as a current limiting function; c6=10 mu m f, plays the role of 'isolating direct traffic', and directly inputs the fire signal into the MCU.
Further, an output end 2 of the horizontal 1 of the three-wire connector headset 3 is also connected with a first end of a filter resistor R2 and a first end of a filter capacitor C2, and a second end of the filter resistor R2 and a second end of the filter capacitor C2 are grounded; the output end of the three-wire connector Header3 perpendicular 1 is also connected with a first end of a filter resistor R8 and a first end of a filter capacitor C3, and a second end of the filter resistor R8 and a second end of the filter capacitor C3 are grounded. In the present embodiment, C2= C3=0.01 μ F, and R2= R8=30K Ω are independent filter circuits before the fire signal is input to the analog switch.
Further, the output end 4 of the one-of-two analog switch chip IC1 is further connected to a first end of a filter resistor R12, a first end of a filter capacitor C9, and a first end of a filter capacitor C8, and a second end of the filter resistor R12, a second end of the filter capacitor C9, and a second end of the filter capacitor C8 are grounded. In this embodiment, C9=0.01 μ F and C8=0.22 μ F, which constitute an operational amplifier front-end filter circuit.
Further, the negative input terminal 2 of the operational amplifier IC2A is connected to a first terminal of an amplifier resistor R13 and a first terminal of an amplifier resistor R11, a second terminal of the amplifier resistor R13 is grounded, and a second terminal of the amplifier resistor R11 is connected to the output terminal 1 of the operational amplifier. And the gain multiple K = R11/R13 of the operational amplifier.
Further, a coupling capacitor C10 is further arranged between the power supply end 3 of the horizontal 1 of the three-wire connector Header3 and the grounding end 1, and a coupling capacitor C1 is further arranged between the power supply end 3 of the vertical 1 of the three-wire connector Header3 and the grounding end 1; in this embodiment, C1= C10=0.1 μ F, which is a coupling capacitance, is used to improve the interference resistance of the sensor.
The control end 3 of the four-wire connector Header3-4H is connected with the first end of a pull-down resistor R16, and the second end of the pull-down circuit R16 is grounded; in the present embodiment, R16=100K is used as a pull-down resistor for controlling channel switching of the IC 1.
And a coupling capacitor C11, a coupling capacitor C12, a coupling capacitor C13 and a coupling capacitor C14 are also arranged between the power supply end 1 and the grounding end 4 of the four-wire connector Header 3-4H.
Overcome the level of intelligence fire monitor in the past and perpendicular detection sensor and adopt two sets of amplifier circuit respectively, with high costs, the loaded down with trivial details complicated scheduling problem of calibration when dispatching from the factory, the utility model provides an intelligence fire monitor integration location detection circuit adopts the analog switch chip IC1 (NC 7SB 3157) of 1 of 2 selections, through master control MCU with level 1 sensor and perpendicular 1 sensor signal switch to operational amplifier circuit IC2A (OPA 227), the advantage is that the circuit is succinct, the fault point is few, and is with low costs.
Use the utility model provides a location detection circuit's intelligent fire gun, level, perpendicular signal discernment conflagration and other light interference signal of filtering with the operation mode of combination judgement. The detection response speed is high, the method is suitable for being used in various large-space places with complicated ambient light, and the fire can be found in the bud.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an intelligence fire water monitor integration location detection circuit, includes analog switch module, operational amplification module and MCU module, the analog switch module with the operational amplification module is connected, the operational amplification module with the MCU module is connected, the analog switch module still with the MCU module is connected, its characterized in that: the device also comprises a horizontal sensor and a vertical sensor, wherein the horizontal sensor and the vertical sensor are respectively connected with the analog switch module;
an independent filter circuit is arranged between the horizontal sensor and the vertical sensor and the analog switch module; and an operational amplifier front-end filter circuit is arranged in front of the operational amplifier module.
2. The integrated positioning and detecting circuit of the intelligent fire water monitor according to claim 1, characterized in that: coupling capacitors are arranged between the power supply ends and the grounding ends of the horizontal sensor and the vertical sensor; and a pull-down resistor is also arranged between the MCU module and the analog switch module and is used for controlling the channel switching of the analog switch module.
3. The integrated positioning and detecting circuit of the intelligent fire water monitor according to claim 2, characterized in that: the two-in-one analog switch comprises a first three-wire connector, a second three-wire connector, a fourth four-wire connector, a two-in-one analog switch chip and an operational amplifier, wherein the first three-wire connector and the second three-wire connector respectively have 3 terminals which are respectively a power supply terminal, a grounding terminal and an output terminal, the fourth four-wire connector has 4 terminals which are respectively a power supply terminal, an input terminal, a control terminal and a grounding terminal, the two-in-one analog switch chip has 6 terminals which are respectively a power supply terminal, a grounding terminal, a first input terminal, a second input terminal, an output terminal and a control terminal, and the operational amplifier has 5 terminals which are respectively a power supply terminal, a grounding terminal, a positive input terminal, a negative input terminal and an output terminal;
the output end of the first three-wire connector is connected with the first input end of the first one-of-two analog switch chip; the output end of the second three-wire connector is connected with the second input end of the either-or analog switch chip; the output end of the alternative analog switch chip is connected with the positive input end of the operational amplifier; the control end of the first one-of-two analog switch chip is connected with the first end of a first current-limiting resistor, and the second end of the first current-limiting resistor is connected with the control end of the four-wire connector; the output end of the operational amplifier is connected with the first end of the first isolation capacitor, and the second end of the first isolation capacitor is connected with the input end of the four-wire connector.
4. The intelligent fire water monitor integrated positioning detection circuit of claim 3, wherein: the output end of the first three-wire connector is also connected with a first end of a first filter resistor and a first end of a first filter capacitor, and a second end of the first filter resistor and a second end of the first filter capacitor are grounded; the output end of the second three-wire connector is further connected with a first end of a second filter resistor and a first end of a second filter capacitor, and a second end of the second filter resistor and a second end of the first filter capacitor are grounded.
5. The integrated positioning and detecting circuit of the intelligent fire water monitor according to claim 4, characterized in that: the output end of the two-out-of-one analog switch chip is further connected with a first end of a third filter resistor, a first end of a third filter capacitor and a first end of a fourth filter capacitor, and a second end of the third filter resistor, a second end of the third filter capacitor and a second end of the fourth filter capacitor are grounded.
6. The integrated positioning and detecting circuit of the intelligent fire water monitor according to claim 5, characterized in that: the negative input end of the operational amplifier is connected with the first end of the first amplifier resistor and the first end of the second amplifier resistor, the second end of the first amplifier resistor is grounded, and the second end of the second amplifier resistor is connected with the output end of the operational amplifier.
7. The intelligent fire water monitor integrated positioning detection circuit of claim 6, wherein: a first coupling capacitor is also arranged between the power supply end and the grounding end of the first three-wire connector, and a second coupling capacitor is also arranged between the power supply end and the grounding end of the second three-wire connector; the control end of the four-wire connector is connected with the first end of a first pull-down resistor, and the second end of the first pull-down resistor is grounded; and a third coupling capacitor, a fourth coupling capacitor, a fifth coupling capacitor and a sixth coupling capacitor are also arranged between the power supply end and the grounding end of the four-wire connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221429700.9U CN217794240U (en) | 2022-06-09 | 2022-06-09 | Intelligent fire water monitor integrated positioning detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221429700.9U CN217794240U (en) | 2022-06-09 | 2022-06-09 | Intelligent fire water monitor integrated positioning detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217794240U true CN217794240U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221429700.9U Active CN217794240U (en) | 2022-06-09 | 2022-06-09 | Intelligent fire water monitor integrated positioning detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217794240U (en) |
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2022
- 2022-06-09 CN CN202221429700.9U patent/CN217794240U/en active Active
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