CN111013075A - Integrated circuit of fire monitoring device - Google Patents
Integrated circuit of fire monitoring device Download PDFInfo
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- CN111013075A CN111013075A CN201911366696.9A CN201911366696A CN111013075A CN 111013075 A CN111013075 A CN 111013075A CN 201911366696 A CN201911366696 A CN 201911366696A CN 111013075 A CN111013075 A CN 111013075A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses an integrated circuit of a fire monitoring device, and relates to the technical field of fire monitoring. In the invention: the data acquisition circuit is connected with the input end of the main control unit; the output end of the main control unit controls the fire extinguisher through the relay output module; the power supply circuit supplies power to the singlechip; the data acquisition circuit is used for conditioning and amplifying signals of the sensor and then inputting the signals to the single chip microcomputer; the relay output module is used for controlling the switches of the alarm device and the fire extinguishing device; the crystal oscillator chip Y2 provides a clock signal for the singlechip; the pin 18 of the singlechip is connected with a light-emitting diode D1; the intelligent fire monitoring system carries out real-time acquisition and analysis on indoor smoke, temperature and other data through the data acquisition circuit, and immediately starts the fire extinguishing device and the alarm device through the output switch instruction of the relay output module under the abnormal condition, so that the real-time performance is strong, the fire extinguishing treatment can be carried out in time at the initial stage of fire, the personnel is informed to carry out the treatment, and the fire condition can be effectively monitored.
Description
Technical Field
The invention belongs to the technical field of fire monitoring, and particularly relates to an integrated circuit of a fire monitoring device.
Background
Operation equipment is the switch board mostly in the information computer lab, network cabinet etc., most conflagrations derive from electric fire, and the source of conflagration is most present in these relatively inclosed local space, take place the initial stage in the conflagration very much, video monitoring and the circulating system in the current computer lab can't discover in time at all, and traditional fire extinguishing system is more to the protection in whole computer lab space and passive, only can start fire extinguishing system when the condition of a fire enlarges to certain extent, at this moment computer lab equipment has caused serious loss, can't be to inclosed space real time monitoring and automatic fire extinguishing at all, just also can't control the source of conflagration.
To solve this problem, an integrated circuit of a fire monitoring device is now designed; data information of a plurality of sensors is collected through the data acquisition circuit, thereby realizing the fire monitoring in the machine room, and when the fire happens, extinguishing gas is put out a fire through the blowout of relay output module control extinguishing device, and the early-stage timely processing of the fire is realized.
Disclosure of Invention
The invention aims to provide an integrated circuit of a fire monitoring device, which is characterized in that data such as indoor smoke, temperature and the like are collected and analyzed in real time through a data collecting circuit, and a switching instruction is output through a relay output module to start a fire extinguishing device and an alarm device in time under the abnormal condition, so that the real-time performance is strong, the fire extinguishing treatment can be carried out in time at the initial stage of fire, and personnel are informed to process the fire, and the fire can be effectively monitored.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an integrated circuit of a fire monitoring device, which comprises a main control unit, a power supply module, a data acquisition circuit, a relay output module and a key circuit, wherein the data acquisition circuit is connected with the input end of the main control unit; the output end of the main control unit controls the fire extinguisher through the relay output module; the main control unit adopts an MSP430F1232 singlechip;
the power supply circuit supplies power to the integrated circuit and comprises a rectifier bridge, a voltage stabilizing circuit and a voltage regulating circuit; the input end of the rectifier bridge is connected with 220V alternating current, and the rectifier bridge converts the alternating current into 24V direct current and outputs the 24V direct current to the voltage stabilizing circuit; the voltage stabilizing circuit carries out voltage stabilizing treatment on an unregulated power supply and then inputs the power supply to the input end of the voltage regulating circuit, and the voltage regulating circuit regulates the input direct current to 3.3V and supplies power to the single chip microcomputer;
the data acquisition circuit is used for conditioning and amplifying signals of the sensor and then inputting the signals to the single chip microcomputer; the data acquisition circuit comprises an operational amplifier U1A, an operational amplifier U1B and a 4-pin socket J3; the operational amplifier U1A and the operational amplifier U1B form a signal amplification circuit, and the 4-pin socket J3 is connected with a sensor;
the 2 pin of the 4-pin socket J3 transmits a signal of a sensor to a non-inverting input end of an operational amplifier U1A through a plurality of resistors; the inverting input end of the operational amplifier U1A is connected with a voltage source through a plurality of resistors in sequence; the output end of the operational amplifier U1A is connected with the non-inverting input end of an operational amplifier U1B;
the inverting input end of the operational amplifier U1B is grounded, and the output end of the operational amplifier U1B is connected with the pin 10 of the signal input end of the singlechip; an adjustable resistor R14 is also connected between the inverting input end and the output end of the operational amplifier U1B;
the operational amplifier U1A and the operational amplifier U1B amplify signals transmitted by a sensor connected to the 4-pin socket J3 and then input the amplified signals to the single chip microcomputer; the sensor comprises a temperature sensor and a smoke sensor;
the pin 1 of the key circuit is connected with the pin 1 of the singlechip, the pin 2 of the key circuit is grounded, and the pin 3 of the key circuit inputs a reset signal to the singlechip through a resistor R2; pins 4-7 of the key circuit are respectively connected with pins 25-28 of the single chip microcomputer, and pin 8 of the key circuit is connected with a 3.3V voltage source;
the relay output module is connected with a pin 23 of the single chip microcomputer and is used for controlling the switches of the alarm device and the fire extinguishing device; the fire extinguishing device is a gas fire extinguisher, and the alarm device is an audible and visual alarm;
a pin 2 of the single chip microcomputer is a power supply input end and is connected with a 3.3V voltage source;
the pin 18 of the single chip microcomputer is a control end of the display lamp, the pin 18 of the single chip microcomputer is connected with one end of a light emitting diode D1, and the other end of the light emitting diode D1 is connected with a 3.3V voltage source through a matching resistor R1.
Further, the voltage stabilizing circuit comprises a voltage stabilizing chip U13 and a peripheral circuit, wherein the model of the voltage stabilizing chip U13 is LM 2575; the input end of a pin 1 of the voltage stabilizing chip U13 is connected with the output end of the rectifier bridge; the 2-pin output end of the voltage stabilizing chip U13 is connected with the input end of the voltage regulating circuit; the pin 3 of the voltage stabilizing chip U13 is grounded, and the feedback input end of the pin 4 of the voltage stabilizing chip U13 is connected with the output of the voltage stabilizing chip U13; the pin 5 of the voltage stabilizing chip U13 is an input control end;
a diode and a plurality of filter capacitors are connected between the input end of the pin 1 of the voltage stabilizing chip U13 and the output end of the rectifier bridge;
a voltage stabilizing diode, an inductor and a plurality of grounding capacitors are sequentially connected between the 2-pin output end of the voltage stabilizing chip U13 and the input end of the voltage regulating circuit;
the 4-pin feedback input end of the voltage stabilizing chip U13 is also connected with a 5V voltage source.
Further, the voltage regulating circuit comprises a voltage regulating chip U14; the 1-pin control end of the voltage regulating chip U14 is connected with the output end through a capacitor C49; the output end of the pin 2 of the voltage regulating chip U14 outputs 3.3V direct current to supply power for the single chip microcomputer, and the pin 2 of the voltage regulating chip U14 is also connected with a grounding capacitor for filtering; and the pin 3 of the voltage regulating chip is an input end.
Further, a matching resistor R14 and a grounding capacitor C28 are connected between the output end of the operational amplifier U1B and the pin 10 of the single chip microcomputer.
Furthermore, the pin 1 of the key circuit is also grounded through a resistor R3.
Furthermore, a grounding capacitor is respectively connected between the two ends of the crystal oscillator chip Y2 and the pins 5 and 6 of the single chip microcomputer.
The invention has the following beneficial effects:
according to the invention, data such as indoor smoke, temperature and the like are collected and analyzed in real time through the data collection circuit, and the relay output module outputs a switch instruction to start the fire extinguishing device and the alarm device in time under abnormal conditions, so that the real-time performance is strong, the fire extinguishing treatment can be carried out in time at the initial stage of fire, personnel is informed to process the fire, and the fire can be effectively monitored.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a circuit diagram of a master control unit of an integrated circuit of a fire monitoring device;
FIG. 2 is a circuit diagram of a power circuit;
fig. 3 is a circuit diagram of a data acquisition circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-3, the present invention is an integrated circuit of a fire monitoring device, including a main control unit, a power module, a data acquisition circuit, a relay output module and a key circuit, wherein the data acquisition circuit is connected to an input terminal of the main control unit; the output end of the main control unit controls the fire extinguisher through the relay output module; the main control unit adopts a single chip microcomputer U1, and the model of the single chip microcomputer U1 is MSP430F1232 single chip microcomputer;
a pin 2 of the singlechip is a power supply input end and is connected with a 3.3V voltage source;
the 18 feet of the single chip microcomputer are control ends of the display lamp, the 18 feet of the single chip microcomputer are connected with one end of a light emitting diode D1, and the other end of the light emitting diode D1 is connected with a 3.3V voltage source through a matching resistor R1;
the relay output module is connected with a pin 23 of the singlechip and is used for controlling the switches of the alarm device and the fire extinguishing device; the fire extinguishing device is a gas fire extinguisher, and the alarm device is an audible and visual alarm;
as shown in fig. 2, the power circuit supplies power to the integrated circuit, and the power circuit includes a rectifier bridge, a voltage regulator circuit, and a voltage regulator circuit; the input end of the rectifier bridge is connected with 220V alternating current, and the rectifier bridge converts the alternating current into 24V direct current and outputs the 24V direct current to the voltage stabilizing circuit; the voltage stabilizing circuit carries out voltage stabilizing treatment on an unregulated power supply and then inputs the power supply to the input end of the voltage regulating circuit, and the voltage regulating circuit regulates the input direct current to 3.3V and supplies power to the single chip microcomputer;
the voltage stabilizing circuit comprises a voltage stabilizing chip U13 and a peripheral circuit, wherein the model of the voltage stabilizing chip U13 is LM 2575; the input end of a pin 1 of the voltage stabilizing chip U13 is connected with the output end of the rectifier bridge; the 2-pin output end of the voltage stabilizing chip U13 is connected with the input end of the voltage regulating circuit; the 3 pin of the voltage stabilizing chip U13 is grounded, and the 4 pin feedback input end of the voltage stabilizing chip U13 is connected with the output of the voltage stabilizing chip U13; the pin 5 of the voltage stabilizing chip U13 is an input control end;
a diode and a plurality of filter capacitors are connected between the input end of the pin 1 of the voltage stabilizing chip U13 and the output end of the rectifier bridge; a voltage stabilizing diode, an inductor and a plurality of grounding capacitors are sequentially connected between the 2-pin output end of the voltage stabilizing chip U13 and the input end of the voltage regulating circuit; the 4-pin feedback input end of the voltage stabilizing chip U13 is also connected with a 5V voltage source;
the voltage regulating circuit comprises a voltage regulating chip U14; the 1 pin control end of the voltage regulating chip U14 is connected with the output end through a capacitor C49; the output end of the pin 2 of the voltage regulating chip U14 outputs 3.3V direct current to supply power for the singlechip, and the pin 2 of the voltage regulating chip U14 is also connected with a grounding capacitor for filtering; pin 3 of the voltage regulating chip is an input end;
as shown in fig. 3, the data acquisition circuit conditions and amplifies the signal of the sensor and inputs the conditioned and amplified signal to the single chip microcomputer; the data acquisition circuit comprises an operational amplifier U1A, an operational amplifier U1B and a 4-pin socket J3; the operational amplifier U1A and the operational amplifier U1B form a signal amplification circuit, and the 4-pin socket J3 is connected with the sensor;
the 2-pin of the 4-pin socket J3 transmits the signal of the sensor to the non-inverting input end of an operational amplifier U1A through a plurality of resistors; the inverting input end of the operational amplifier U1A is connected with a voltage source through a plurality of resistors in sequence; the output end of the operational amplifier U1A is connected with the non-inverting input end of the operational amplifier U1B;
the inverting input end of the operational amplifier U1B is grounded, and the output end of the operational amplifier U1B is connected with the pin 10 of the signal input end of the singlechip; an adjustable resistor R14 is also connected between the inverting input end and the output end of the operational amplifier U1B; a matching resistor R14 and a grounded capacitor C28 are connected between the output end of the operational amplifier U1B and the pin 10 of the singlechip;
signals transmitted by a sensor connected to the 4-pin socket J3 are amplified and then input to the single chip microcomputer by the operational amplifier U1A and the operational amplifier U1B; the sensors include temperature sensors and smoke sensors.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a fire monitoring devices's integrated circuit, includes main control unit, power module, data acquisition circuit, relay output module and keying circuit, its characterized in that: the data acquisition circuit is connected with the input end of the main control unit; the output end of the main control unit controls the fire extinguisher through the relay output module; the main control unit adopts an MSP430F1232 singlechip;
the power supply circuit supplies power to the integrated circuit and comprises a rectifier bridge, a voltage stabilizing circuit and a voltage regulating circuit; the input end of the rectifier bridge is connected with 220V alternating current, and the rectifier bridge converts the alternating current into 24V direct current and outputs the 24V direct current to the voltage stabilizing circuit; the voltage stabilizing circuit carries out voltage stabilizing treatment on an unregulated power supply and then inputs the power supply to the input end of the voltage regulating circuit, and the voltage regulating circuit regulates the input direct current to 3.3V and supplies power to the single chip microcomputer;
the data acquisition circuit is used for conditioning and amplifying signals of the sensor and then inputting the signals to the single chip microcomputer; the data acquisition circuit comprises an operational amplifier U1A, an operational amplifier U1B and a 4-pin socket J3; the operational amplifier U1A and the operational amplifier U1B form a signal amplification circuit, and the 4-pin socket J3 is connected with a sensor;
the 2 pin of the 4-pin socket J3 transmits a signal of a sensor to a non-inverting input end of an operational amplifier U1A through a plurality of resistors; the inverting input end of the operational amplifier U1A is connected with a voltage source through a plurality of resistors in sequence; the output end of the operational amplifier U1A is connected with the non-inverting input end of an operational amplifier U1B;
the inverting input end of the operational amplifier U1B is grounded, and the output end of the operational amplifier U1B is connected with the pin 10 of the signal input end of the singlechip; an adjustable resistor R14 is also connected between the inverting input end and the output end of the operational amplifier U1B;
the operational amplifier U1A and the operational amplifier U1B amplify signals transmitted by a sensor connected to the 4-pin socket J3 and then input the amplified signals to the single chip microcomputer; the sensor comprises a temperature sensor and a smoke sensor;
the pin 1 of the key circuit is connected with the pin 1 of the singlechip, the pin 2 of the key circuit is grounded, and the pin 3 of the key circuit inputs a reset signal to the singlechip through a resistor R2; pins 4-7 of the key circuit are respectively connected with pins 25-28 of the single chip microcomputer, and pin 8 of the key circuit is connected with a 3.3V voltage source;
the relay output module is connected with a pin 23 of the single chip microcomputer and is used for controlling the switches of the alarm device and the fire extinguishing device; the fire extinguishing device is a gas fire extinguisher, and the alarm device is an audible and visual alarm;
a pin 2 of the single chip microcomputer is a power supply input end and is connected with a 3.3V voltage source;
pins 5 and 6 of the single chip are respectively connected with two ends of a crystal oscillator chip Y2; the crystal oscillator chip Y2 provides a clock signal for the singlechip;
the pin 18 of the single chip microcomputer is a control end of the display lamp, the pin 18 of the single chip microcomputer is connected with one end of a light emitting diode D1, and the other end of the light emitting diode D1 is connected with a 3.3V voltage source through a matching resistor R1.
2. The integrated circuit of the fire monitoring device according to claim 1, wherein the voltage regulator circuit comprises a voltage regulator chip U13 and a peripheral circuit, the model of the voltage regulator chip U13 is LM 2575; the input end of a pin 1 of the voltage stabilizing chip U13 is connected with the output end of the rectifier bridge; the 2-pin output end of the voltage stabilizing chip U13 is connected with the input end of the voltage regulating circuit; the pin 3 of the voltage stabilizing chip U13 is grounded, and the feedback input end of the pin 4 of the voltage stabilizing chip U13 is connected with the output of the voltage stabilizing chip U13; the pin 5 of the voltage stabilizing chip U13 is an input control end;
a diode and a plurality of filter capacitors are connected between the input end of the pin 1 of the voltage stabilizing chip U13 and the output end of the rectifier bridge;
a voltage stabilizing diode, an inductor and a plurality of grounding capacitors are sequentially connected between the 2-pin output end of the voltage stabilizing chip U13 and the input end of the voltage regulating circuit;
the 4-pin feedback input end of the voltage stabilizing chip U13 is also connected with a 5V voltage source.
3. The integrated circuit of a fire monitoring device of claim 1, wherein the voltage regulating circuit comprises a voltage regulating chip U14; the 1-pin control end of the voltage regulating chip U14 is connected with the output end through a capacitor C49; the output end of the pin 2 of the voltage regulating chip U14 outputs 3.3V direct current to supply power for the single chip microcomputer, and the pin 2 of the voltage regulating chip U14 is also connected with a grounding capacitor for filtering; and the pin 3 of the voltage regulating chip is an input end.
4. The integrated circuit of claim 1, wherein a matching resistor R14 and a grounding capacitor C28 are connected between the output terminal of the operational amplifier U1B and the pin 10 of the single chip microcomputer.
5. The integrated circuit of claim 1, wherein the 1 pin of the key circuit is further grounded through a resistor R3.
6. The integrated circuit of the fire monitoring device according to claim 1, wherein a ground capacitor is further connected between the two ends of the crystal oscillator chip Y2 and the pins 5 and 6 of the single chip microcomputer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366696.9A CN111013075A (en) | 2019-12-26 | 2019-12-26 | Integrated circuit of fire monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366696.9A CN111013075A (en) | 2019-12-26 | 2019-12-26 | Integrated circuit of fire monitoring device |
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| CN111013075A true CN111013075A (en) | 2020-04-17 |
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| CN201911366696.9A Pending CN111013075A (en) | 2019-12-26 | 2019-12-26 | Integrated circuit of fire monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630852A (en) * | 2021-03-10 | 2021-04-09 | 南京初芯集成电路有限公司 | Double-light-path smoke sensing chip and smoke sensing method |
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Application publication date: 20200417 |