CN109389796B - Nonpolar two-bus temperature measurement type fire detector - Google Patents
Nonpolar two-bus temperature measurement type fire detector Download PDFInfo
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- CN109389796B CN109389796B CN201811478586.7A CN201811478586A CN109389796B CN 109389796 B CN109389796 B CN 109389796B CN 201811478586 A CN201811478586 A CN 201811478586A CN 109389796 B CN109389796 B CN 109389796B
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
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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
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention relates to the technical field of fire monitoring detectors, in particular to a nonpolar two-bus temperature measurement type fire detector, which is characterized in that a signal wire and a power wire share two wires and are nonpolar, the nonpolar two-bus temperature measurement type fire detector can be greatly reduced in use, the nonpolar two-bus temperature measurement type fire detector comprises a CPU module, a temperature measurement module and an alarm module, and further comprises a communication bus power supply module, the CPU module is connected with the temperature measurement module, the alarm module and the communication bus power supply module, the communication bus power supply module comprises an upper computer communication interface, one end of the upper computer communication interface is connected with one end of a resistor R1, the other end of the upper computer communication interface is connected with one end of a resistor R2, the other end of the resistor R1 is connected with the anode of a voltage stabilizing diode T1, one end of a capacitor C2, the cathode of a diode D2 and the anode of a diode D4, the other end of the resistor R2 is connected with the cathode of the voltage stabilizing diode T1, one end of the capacitor C1, the cathode of the diode D1 and the anode of the diode D3 are grounded.
Description
Technical Field
The invention relates to the technical field of fire monitoring detectors, in particular to a nonpolar two-bus temperature measurement type fire detector.
Background
The temperature measurement type fire detector is required to be installed in general industry and civil buildings, and has the effects that fire accidents caused by circuit reasons in important places in the buildings can be analyzed, real-time detection of temperature changes in circuit lines can be prepared, when the temperature in the detected circuit lines rises to a set alarm temperature, alarm signals can be timely sent out, the traditional product adopts a wiring mode with four polarity buses, namely two communication buses and two power buses, are mutually independent, the circuit arrangement structure is complex, the installation and maintenance are inconvenient, and the cost of manpower and material resources is too high.
Disclosure of Invention
In order to solve the problem of high use cost of the existing temperature measurement type fire detector, the invention provides the nonpolar two-bus temperature measurement type fire detector, and the signal wire and the power wire share two wires and are nonpolar, so that the use cost can be greatly reduced.
The technical scheme is as follows: the nonpolar two-bus temperature measurement type fire detector comprises a CPU module, a temperature measurement module and an alarm module, and is characterized by further comprising a communication bus power supply module, wherein the CPU module is connected with the temperature measurement module, the alarm module and the communication bus power supply module, the communication bus power supply module comprises an upper computer communication interface, one end of the upper computer communication interface is connected with one end of a resistor R1, the other end of the upper computer communication interface is connected with one end of a resistor R2, the other end of the resistor R1 is connected with the anode of a voltage stabilizing diode T1, one end of a capacitor C2, the cathode of a diode D2 and the anode of a diode D4, the other end of the resistor R2 is connected with the cathode of the voltage stabilizing diode T1, one end of a capacitor C1, the cathode of a diode D3, the other end of the capacitor C1, the other end of the capacitor C2, the anode of the diode D1 and the anode of the diode D2 are all grounded, the negative pole of the diode D3 and the negative pole of the diode D4 are connected and then connected with one end of a resistor R301, one end of the resistor R4, one end of a resistor R303, one end of a capacitor C18, the positive pole of the diode D5 and one end of a diode D6, the diode D1, the diode D2, the diode D3 and the diode D4 form a rectifying circuit, the negative pole of the diode D5 and the negative pole of the diode D6 are connected and then connected with one end of a resistor R12 and the collector of a triode Q3, the base of the triode Q3 is connected with the negative pole of a voltage stabilizing diode D8, one end of a resistor R13, one end of a capacitor C8 and the other end of the resistor R12, the positive pole of the voltage stabilizing diode D8, the other end of the resistor R13 and the other end of the capacitor C8 are grounded, the emitting pole of the triode Q3 is connected with one end of the capacitor C4, one end of the capacitor C9 and the pin 2 of a voltage stabilizing chip U2, the pin 3 of the voltage stabilizing chip U2 is connected with one end of the capacitor C5, one end of the capacitor C10 and one end of the capacitor C11 and is the output end of a VCC power supply, the three-phase capacitor is characterized in that the other end of the capacitor C4, the other end of the capacitor C9, the other end of the capacitor C5, the other end of the capacitor C10, the other end of the capacitor C11 and the 1 pin of the voltage stabilizing chip U2 are all grounded, the other end of the resistor R4 is connected with the collector of the triode Q1, the emitter of the triode Q1 is grounded through a resistor R3, the base of the triode Q1 is connected with one end of the resistor R302, one end of the capacitor C102 and one end of the resistor R6, the other end of the resistor R302 and the other end of the capacitor C102 are all grounded, the other end of the resistor R6 is an output port connected with the CPU module, the other end of the capacitor C18 and the other end of the resistor R303 are connected with one end of the resistor R9, one end of the resistor R9 is connected with one end of the capacitor C101, the anode of the switch diode D7 and the cathode of the switch diode D9 are connected with the base of the triode Q2, the anode of the switch diode D9 is connected with the other end of the resistor R7 and the other end of the resistor C101 and grounded, and one end of the other end of the resistor Q2 is connected with the collector of the resistor C3 and the other end of the resistor C3 is connected with the collector.
The CPU module is further characterized by comprising a PIC16F684 chip U1, the other end of the resistor R6 is connected with the 3 pin of the PIC16F684 chip U1, and the collector electrode of the triode Q2 is connected with the 9 pin of the PIC16F684 chip U1;
the temperature measurement module comprises a temperature sensor, one end of the temperature sensor is connected with one end of a capacitor C14 and one end of a resistor R22, the other end of the temperature sensor is connected with one end of a resistor R10 and the other end of the capacitor C14, the other end of the resistor R22 is connected with one end of a capacitor C15, one end of a resistor R21, one end of a resistor R17 and 3 pins of an amplifier U4, the other end of the capacitor C15, the other end of the resistor R10 and the other end of the resistor R21 are grounded, the other end of the resistor R17 is connected with one end of a capacitor C12 and 5 pins of the amplifier U4, the other end of the capacitor C12 is grounded, the 2 pins of the amplifier U4 are connected with one end of a resistor R23 after being grounded, and the 1 pin and the 4 pins are connected, and the other end of the resistor R23 is connected with one end of the capacitor C13 and 10 pins of the PIC16F684 chip U1;
the alarm module comprises a Light Emitting Diode (LED) 1, a light emitting diode (LED 2) and a light emitting diode (LED 3) which are arranged in parallel, wherein the anode of the Light Emitting Diode (LED) 1, the anode of the Light Emitting Diode (LED) 2 and the anode of the Light Emitting Diode (LED) 3 are connected with an external DC power supply, the cathode of the Light Emitting Diode (LED) 1 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with a collector of a triode Q4, an emitter of the triode Q4 is grounded, the base of the triode Q4 is connected with the 11 pin of a PIC16F684 chip U1 through a resistor R18, the cathode of the Light Emitting Diode (LED) 2 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with a collector of a triode Q5, the emitter of the triode Q5 is grounded, the base of the triode Q5 is connected with the 13 pin of the PIC16F684 chip U1 through a resistor R19, the cathode of the Light Emitting Diode (LED) 3 is connected with one end of a resistor R16, the other end of the resistor R16 is connected with a pin of a triode Q6, the emitter of the triode Q6 is grounded, and the triode Q6 is connected with the collector of the PIC16F684 chip U1 through a resistor R20.
After the invention is adopted, the communication bus power supply module is connected with the CPU module through the two connecting ports, namely the communication line and the power line are shared, the circuit arrangement structure is simple, and the use cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a system of the present invention;
FIG. 2 is a schematic circuit diagram of a communication bus power module;
FIG. 3 is a schematic circuit diagram of a CPU module;
FIG. 4 is a schematic circuit diagram of a temperature measurement module;
FIG. 5 is a schematic diagram of an alarm module circuit;
fig. 6 is a flow chart of the control principle of the present invention.
Detailed Description
Referring to fig. 1 to 6, a temperature measurement type fire detector comprises a CPU module, a temperature measurement module, an alarm module and a communication bus power supply module, wherein the CPU module is connected with the temperature measurement module, the alarm module and the communication bus power supply module, the communication bus power supply module comprises an upper computer communication interface, one end of the upper computer communication interface is connected with one end of a resistor R1, the other end of the upper computer communication interface is connected with one end of a resistor R2, the other end of the resistor R1 is connected with the positive electrode of a voltage-stabilizing diode T1, one end of a capacitor C2, the negative electrode of a diode D2 and the positive electrode of a diode D4, the other end of the resistor R2 is connected with the negative electrode of the voltage-stabilizing diode T1, one end of the capacitor C1, the negative electrode of the diode D1 and the positive electrode of the diode D3, the other end of the capacitor C1, the other end of the capacitor C2, the positive electrode of the diode D1 and the positive electrode of the diode D2 are all grounded, the cathode of the diode D3 and the cathode of the diode D4 are connected and then connected with one end of a resistor R301, one end of a resistor R4, one end of a resistor R303, one end of a capacitor C18, the anode of the diode D5 and one end of a diode D6 are connected, the diode D1, the diode D2, the diode D3 and the diode D4 form a rectifying circuit, the cathode of the diode D5 and the cathode of the diode D6 are connected and then connected with one end of a resistor R12 and the collector of a triode Q3, the base of the triode Q3 is connected with the cathode of a voltage stabilizing diode D8, one end of a resistor R13, one end of a capacitor C8 and the other end of the resistor R12, the anode of the voltage stabilizing diode D8, the other end of the resistor R13 and the other end of the capacitor C8 are grounded, the emitter of the triode Q3 is connected with one end of the capacitor C4, one end of the capacitor C9 and the 2 pin of the voltage stabilizing chip U2, the 3 pin of the voltage stabilizing chip U2 is connected with one end of the capacitor C5, one end of the capacitor C10, one end of the capacitor C11 and is the output end of VCC power supply, the other end of the capacitor C4, the other end of the capacitor C5 and the other end of the capacitor C10, the other end of the capacitor C11 and the 1 pin of the voltage stabilizing chip U2 are grounded, the other end of the resistor R4 is connected with the collector of the triode Q1, the emitter of the triode Q1 is grounded through the resistor R3, the base of the triode Q1 is connected with one end of the resistor R302, one end of the capacitor C102 and one end of the resistor R6, the other end of the resistor R302 and the other end of the capacitor C102 are grounded, the other end of the resistor R6 is an output port connected with the CPU module, the other end of the capacitor C18 and the other end of the resistor R303 are connected with one end of the resistor R9, the other end of the resistor R9 is connected with one end of the capacitor C101, the anode of the switch diode D7 is connected with one end of the switch diode D9, the cathode of the switch diode D7 is connected with one end of the resistor R7, the base of the triode Q2 is connected with one end of the resistor R9, the other end of the capacitor C101 is grounded, the collector of the triode Q2 is connected with one end of the resistor C3 and is an input port connected with the CPU module, the other end of the resistor R11 is connected with the other end of the resistor C3, and the emitter of the triode Q2 is grounded.
The CPU module comprises a PIC16F684 chip U1, the other end of a resistor R6 is connected with a 3 pin of the PIC16F684 chip U1, and the collector electrode of a triode Q2 is connected with a 9 pin of the PIC16F684 chip U1.
The temperature measurement module comprises a temperature sensor, one end of the temperature sensor is connected with one end of a capacitor C14 and one end of a resistor R22, the other end of the temperature sensor is connected with one end of a resistor R10 and the other end of the capacitor C14, the other end of the resistor R22 is connected with one end of a capacitor C15, one end of a resistor R21, one end of a resistor R17 and 3 pins of an amplifier U4, the other end of the capacitor C15, the other end of the resistor R10 and the other end of the resistor R21 are all grounded, the other end of the resistor R17 is connected with one end of the capacitor C12 and 5 pins of the amplifier U4, the other end of the capacitor C12 is grounded, the 2 pins of the amplifier U4 are grounded, one end of the resistor R23 is connected with the other end of the 1 pin and the other end of the 4 pin, and the other end of the resistor R23 is connected with one end of the capacitor C13 and 10 pins of the PIC16F684 chip U1.
The alarm module comprises a light emitting diode LED1, a light emitting diode LED2 and a light emitting diode LED3 which are arranged in parallel, wherein the positive electrode of the light emitting diode LED1, the positive electrode of the light emitting diode LED2 and the positive electrode of the light emitting diode LED3 are connected with an external DC power supply, the light emitting diode LED1 is a green LED lamp which is used as a normal running lamp of a system, the light emitting diode LED2 is a red LED lamp which is used as a system alarm lamp, the light emitting diode LED3 is a yellow LED lamp which is used as a fault lamp of a temperature sensor, the negative electrode of the light emitting diode LED1 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with the collector of a triode Q4, the emitter of the triode Q4 is grounded, the base of the triode Q4 is connected with the 11 pin of a PIC16F684 chip U1 through a resistor R18, the other end of the negative electrode of the light emitting diode LED2 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with the collector of the triode Q5, the base of the triode Q5 is connected with the 13 pin of a PIC16F684 chip U1 through a resistor R19, the other end of the triode Q16 is connected with the base of the triode Q6, and the base of the triode Q6 is connected with the base of the PIC16F684 chip Q1 through the base of the triode Q6.
The invention adopts accurate analog-digital A/D conversion in the CPU module to monitor the temperature sensor in real time and judge the data, displays the temperature condition on the circuit, and simultaneously transmits the condition on the circuit to the upper computer through two buses, thereby changing the invisible temperature condition on the circuit into visible digital monitoring, and providing a comprehensive solution for effectively preventing electric fire.
Claims (4)
1. The nonpolar two-bus temperature measurement type fire detector comprises a CPU module, a temperature measurement module and an alarm module, and is characterized by further comprising a communication bus power supply module, wherein the CPU module is connected with the temperature measurement module, the alarm module and the communication bus power supply module, the communication bus power supply module comprises an upper computer communication interface, one end of the upper computer communication interface is connected with one end of a resistor R1, the other end of the upper computer communication interface is connected with one end of a resistor R2, the other end of the resistor R1 is connected with the anode of a voltage stabilizing diode T1, one end of a capacitor C2, the cathode of a diode D2 and the anode of a diode D4, the other end of the resistor R2 is connected with the cathode of the voltage stabilizing diode T1, one end of a capacitor C1, the cathode of a diode D3, the other end of the capacitor C1, the other end of the capacitor C2, the anode of the diode D1 and the anode of the diode D2 are all grounded, the diode D3 negative pole, diode D4 negative pole link up back connecting resistance R301 one end, resistance R4 one end, resistance R303 one end, electric capacity C18 one end, diode D5 positive pole, diode D6 one end, diode D1, diode D2, diode D3, diode D4 constitute rectifier circuit, diode D5 negative pole, diode D6 negative pole link up back connecting resistance R12 one end, triode Q3's collecting electrode, triode Q3's base is connected zener diode D8's negative pole, resistance R13 one end, electric capacity C8 one end the resistance R12 other end, zener diode D8's positive pole, resistance R13 other end, electric capacity C8 other end all ground connection, electric capacity C4 one end, electric capacity C9 one end, voltage stabilizing chip U2's 2 foot, voltage stabilizing chip U2's 3 foot is connected electric capacity C5 one end, electric capacity C10 one end, voltage stabilizing chip U2's 3 foot, the capacitor C11 one end is the VCC power output end, the capacitor C4 other end, the capacitor C9 other end, the capacitor C5 other end, the capacitor C10 other end, the capacitor C11 other end, the 1 foot of steady voltage chip U2 all connects to ground, the triode Q1's collecting electrode is connected to the resistance R4 other end, triode Q1's projecting pole passes through resistance R3 ground, triode Q1's base connection resistance R302 one end, capacitor C102 one end, resistance R6 one end, the resistance R302 other end, the equal ground of capacitor C102 other end, the resistance R6 other end be with the output port that the CPU module is connected, the capacitor C18 other end, the resistance R303 other end is connected resistance R9 one end, resistance R9 other end is connected capacitor C101 one end, the positive pole of switch diode D7, the negative pole of switch diode D9, the negative pole connecting resistance R7 one end, triode Q2's base, the positive pole of switch diode D9 is connected the resistance R7 other end, the capacitor C101 other end and ground connection, the resistance R11 other end, the capacitor C11 one end is connected with the triode Q2 one end, the collector end is connected with the triode Q3, the terminal is connected with the CPU end, the end is connected to the terminal of the triode Q11.
2. The nonpolar two-bus temperature measurement type fire detector of claim 1, wherein the CPU module comprises a PIC16F684 chip U1, the other end of the resistor R6 is connected to pin 3 of the PIC16F684 chip U1, and the collector of the triode Q2 is connected to pin 9 of the PIC16F684 chip U1.
3. The nonpolar two-bus temperature measurement type fire detector according to claim 2, wherein the temperature measurement module comprises a temperature sensor, one end of the temperature sensor is connected with one end of a capacitor C14 and one end of a resistor R22, the other end of the temperature sensor is connected with one end of a resistor R10 and the other end of the capacitor C14, the other end of the resistor R22 is connected with one end of a capacitor C15, one end of a resistor R21, one end of a resistor R17 and 3 pins of an amplifier U4, the other end of the capacitor C15, the other end of the resistor R10 and the other end of the resistor R21 are grounded, the other end of the resistor R17 is connected with one end of a capacitor C12 and 5 pins of the amplifier U4, the other end of the capacitor C12 is grounded, the 2 pins of the amplifier U4 are grounded, the 1 pin and the 4 pin are connected with one end of a resistor R23, and the other end of the resistor R23 is connected with one end of a capacitor C13 and the 10 pins of the PIC16F684 chip U1.
4. The nonpolar two-bus temperature measurement type fire detector according to claim 2, wherein the alarm module comprises a light emitting diode LED1, a light emitting diode LED2 and a light emitting diode LED3 which are arranged in parallel, the positive electrode of the light emitting diode LED1, the positive electrode of the light emitting diode LED2 and the positive electrode of the light emitting diode LED3 are connected with an external DC power supply, the negative electrode of the light emitting diode LED1 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with a collector of a triode Q4, an emitter of the triode Q4 is grounded, a base of the triode Q4 is connected with a pin 11 of a PIC16F684 chip U1 through a resistor R18, the negative electrode of the light emitting diode LED2 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with a collector of a triode Q5, the emitter of the triode Q5 is grounded, a base of the triode Q5 is connected with a pin 13 of a PIC16F684 chip U1 through a resistor R19, the other end of the resistor R16 is connected with a base of the triode Q6, and the base of the triode Q6 is connected with a pin 684 of the triode Q1 through a collector of the triode Q16F 684 chip U1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811478586.7A CN109389796B (en) | 2018-12-05 | 2018-12-05 | Nonpolar two-bus temperature measurement type fire detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811478586.7A CN109389796B (en) | 2018-12-05 | 2018-12-05 | Nonpolar two-bus temperature measurement type fire detector |
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| CN109389796A CN109389796A (en) | 2019-02-26 |
| CN109389796B true CN109389796B (en) | 2023-06-02 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4163226A (en) * | 1977-09-02 | 1979-07-31 | Statitrol Division Emerson Electric Co. | Alarm condition detecting apparatus and method |
| CN102315685A (en) * | 2010-07-06 | 2012-01-11 | 林熙明 | AMS (automatic monitoring system) intelligent control system on basis of two-core bus technology mixed with power supply and communication |
| CN202331701U (en) * | 2011-11-21 | 2012-07-11 | 蚌埠依爱消防电子有限责任公司 | Universal relay module of automatic fire alarm system |
| US20150253825A1 (en) * | 2014-03-04 | 2015-09-10 | Honeywell International Inc. | Power supply for a two-wire module |
| CN105445595B (en) * | 2014-08-12 | 2018-05-11 | 无锡蓝天电子股份有限公司 | A kind of fire hazard monitoring detection device |
| CN204856797U (en) * | 2015-07-30 | 2015-12-09 | 上海松江飞繁电子有限公司 | Point type temperature sensing fire detection circuit |
| CN105092953B (en) * | 2015-09-17 | 2018-07-13 | 无锡蓝天电子股份有限公司 | A kind of residual current detector and fire alarm system |
| CN205850062U (en) * | 2016-08-10 | 2017-01-04 | 深圳市赋安安全系统有限公司 | A kind of gas extinguishing control system of two lines bus type |
| CN207678048U (en) * | 2017-12-19 | 2018-07-31 | 天津新亚精诚科技有限公司 | Intelligent emergent terminal control circuitry |
| CN209087093U (en) * | 2018-12-05 | 2019-07-09 | 无锡蓝天电子股份有限公司 | Nonpolarity double bus temp.-measuring type fire detector |
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2018
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