CN110380744B - Building site fire safety management system based on thing networking - Google Patents
Building site fire safety management system based on thing networking Download PDFInfo
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- CN110380744B CN110380744B CN201910703856.8A CN201910703856A CN110380744B CN 110380744 B CN110380744 B CN 110380744B CN 201910703856 A CN201910703856 A CN 201910703856A CN 110380744 B CN110380744 B CN 110380744B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention discloses a building site fire safety management system based on the Internet of things, which comprises a signal correction module, a noise reduction distortion circuit and a filtering transmitting circuit, wherein the frequency acquisition circuit acquires analog signal frequency in an output signal of a building site fire information acquisition module, the noise reduction distortion circuit amplifies signals in phase by using an operational amplifier AR2 and then inputs the amplified signals into the filtering transmitting circuit, a switching circuit consisting of a triode Q6 and a triode Q7 is used for detecting the potential difference of output signals of the operational amplifier AR1 and the operational amplifier AR2, an abnormal potential difference signal is fed back into a frequency modulation circuit, the amplitude of the output signal of a frequency selection circuit is adjusted, finally the filtering transmitting circuit consists of an inductor L2, a capacitor C10 and a capacitor C11 and is used for filtering signal noise filtering, the filtered signal is sent into a control terminal by a signal transmitter E1, the building site fire information is acquired in real time, the fire data information of a building site is detected in real time, and meanwhile, the output signal is.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a building site fire safety management system based on the Internet of things.
Background
At present, building site fire control safety management system mainly includes control terminal, the thing networking, building site fire control information acquisition module and display module, the signal correction module, building site fire control information gathers the fire control data on building site in real time, send the data format in unified back to control terminal through the thing networking in, control terminal synthesizes data information and shows the real-time fire control safety data on display module on, the staff of being convenient for is in time to building site fire control safety optimization management, because fire control data can the signal loss in the transmission unavoidably appear, lead to the signal distortion, reduce building site fire control safety management system's performance.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide a building site fire safety management system based on the internet of things, which has the characteristics of ingenious conception and humanized design, is used for collecting fire data information of a building site in real time for detecting the fire data information of the building site in real time, and simultaneously outputs a correction signal for receiving an analog signal by a control terminal.
The building site fire safety management system based on the Internet of things comprises a control terminal, the Internet of things, a building site fire information acquisition module, a display module and a signal correction module, wherein the building site fire information acquires fire data of a building site in real time, the fire data are unified in data format and then are sent to the control terminal through the Internet of things, the control terminal synthesizes data information to display real-time fire safety data of the building site on the display module, workers can conveniently optimize and manage the building site fire safety in time, the signal correction module acquires the fire data information of the building site in real time through the signal correction module, meanwhile, the signal correction module outputs a correction signal for receiving an analog signal for the control terminal, and the signal correction module comprises a frequency acquisition circuit, a noise reduction distortion circuit and a filtering transmitting circuit;
the frequency acquisition circuit acquires analog signal frequency in signals output by the fire information acquisition module of the construction site, the noise reduction distortion circuit utilizes a frequency modulation circuit consisting of a triode Q1, a triode Q2 and a capacitor C2-a capacitor C5 to modulate the frequency of the signals, a noise reduction circuit consisting of an operational amplifier AR1, a diode D2 and a diode D3 is utilized to reduce the signal-to-noise ratio, a frequency selection circuit consisting of an emitter signal of the triode Q2, a capacitor C6-a capacitor C8 and a resistor R4-a resistor R6 is utilized to select the frequency of the signals, then the output signal of the noise reduction circuit and the output signal of the frequency selection circuit are utilized to prevent signal distortion through a composite circuit consisting of a triode Q4, a triode Q5, a diode D4 and a diode D5, and finally the operational amplifier AR 9 amplifies the signals in phase and then inputs the amplified signals into the filtering and transmitting circuit, wherein the triode Q6 and a triode Q7 are utilized to form a switching circuit which detects an operational amplifier 1 and filters the output signal potential difference, feeds back abnormal potential difference signals into the frequency modulation circuit, and finally the filtering transmitting circuit comprises an inductor C L, a capacitor C8658 and a clutter signal control transmitter 36.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. a frequency modulation circuit consisting of a triode Q1, a triode Q2 and a capacitor C2-a capacitor C5 is used for modulating frequency of signals, a capacitor C3 and a capacitor C4 are bypass capacitors for filtering low-frequency signal noise, a capacitor C2 and a capacitor C5 are decoupling capacitors for filtering high-frequency signal noise to realize the frequency modulation effect of the signals, a noise reduction circuit consisting of an operational amplifier AR1, a diode D2 and a diode D3 is used for reducing the signal-to-noise ratio, an emitter signal of the triode Q2 is limited in signal potential by an amplitude limiting circuit consisting of a diode D6 and a diode D7, a frequency selection circuit consisting of a capacitor C6-a capacitor C8 and a resistor R4-a resistor R6 is used for selecting frequency of the signals, preprocessing is carried out for preventing signal distortion, then the output signals of the noise reduction circuit and the frequency selection circuit are combined with a triode Q4, a triode Q5, a diode D4 and a diode D5 to, the signal remote transmission distortion is prevented, and the reliability is high;
2. the signal is amplified in phase by an operational amplifier AR2 and then input into a filtering transmitting circuit to compensate the conduction loss of the signal, a switching circuit consisting of a triode Q6 and a triode Q7 is used for detecting the potential difference of the output signals of the operational amplifier AR1 and the operational amplifier AR2, the accuracy of the amplitude and the frequency of the corrected signal is further ensured, an abnormal potential difference signal is fed back into a frequency modulation circuit, the amplitude of the output signal of a frequency selection circuit is adjusted, namely the output signal of a composite circuit is further adjusted, a filtering circuit consisting of an inductor L2, a capacitor C10 and a capacitor C11 is used for filtering signal clutter, the filtered signal clutter is sent into a control terminal through a signal transmitter E1, the fire-fighting data signal received by the control terminal is corrected, the accuracy of the corrected signal is realized by adopting the mode, the accuracy of the signal of the fire-fighting data in transmission is ensured, and the performance of.
Drawings
FIG. 1 is a circuit diagram of a noise reduction distortion circuit according to the present invention.
Fig. 2 is a circuit diagram of the frequency acquisition circuit of the present invention.
Fig. 3 is a circuit diagram of the filtering transmitter of the present invention.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
In the first embodiment, a building site fire safety management system based on the internet of things comprises a signal correction module, a noise reduction distortion circuit and a filtering and transmitting circuit, wherein the frequency correction module comprises a frequency acquisition circuit, a noise reduction distortion circuit and a filtering and transmitting circuit, the frequency acquisition circuit acquires analog signal frequency in an output signal of a building site fire information acquisition module, the noise reduction distortion circuit utilizes a triode Q1, a triode Q2 and a capacitor C2-C5 to form a frequency modulation circuit to modulate frequency of a signal, meanwhile, an operational amplifier AR1, a diode D2 and a diode D3 are utilized to form a noise reduction circuit to reduce the signal noise ratio, an emitter signal of the triode Q2 is subjected to frequency selection by a frequency selection circuit formed by a capacitor C6-C8 and a resistor R4-R6 to select frequency of the signal, then the output signal of the noise reduction circuit and the output signal of the frequency selection circuit are subjected to signal distortion prevention by a composite circuit formed by a triode Q4, a triode Q5, a diode D4 and a diode D5, finally, the operational amplifier AR2 amplifies the signal in-phase and then inputs the signal into the filtering and transmitting circuit, wherein the triode Q2 and Q56 form a switching circuit to detect an amplitude difference signal, a switch circuit, a potential difference signal detection circuit, a potential difference detection;
the noise reduction distortion circuit utilizes a triode Q1, a triode Q2 and a capacitor C2-a capacitor C5 to form a frequency modulation circuit to modulate frequency of signals, a capacitor C3 and a capacitor C4 are bypass capacitors to filter low-frequency signal noise, a capacitor C2 and a capacitor C5 are decoupling capacitors to filter high-frequency signal noise to realize the frequency modulation effect of the signals, simultaneously an operational amplifier AR1, a diode D2 and a diode D3 are utilized to form a noise reduction circuit to reduce the signal-to-noise ratio, an emitter signal of the triode Q2 utilizes an amplitude limiting circuit formed by a diode D6 and a diode D7 to limit the signal potential, then a frequency selection circuit formed by a capacitor C6-a capacitor C8 and a resistor R4-a resistor R6 to select frequency of the signals, preprocessing is carried out for preventing signal distortion, then a noise reduction circuit output signal and a frequency selection circuit output signal are combined by a triode Q4, a triode Q5, a diode D4 and a diode D5 to, the signal remote transmission distortion is prevented, finally, the operational amplifier AR2 is used for amplifying signals in phase and then inputting the signals into the filtering transmitting circuit, the conduction loss of the signals is compensated, the triode Q6 and the triode Q7 are used for forming a switching circuit to detect the potential difference of the output signals of the operational amplifier AR1 and the operational amplifier AR2, the accuracy of the amplitude and the frequency of the corrected signals is further ensured, the abnormal potential difference signals are fed back into the frequency modulation circuit, the amplitude of the output signals of the frequency selection circuit is adjusted, namely the output signals of the composite circuit are further adjusted, by adopting the mode, the accuracy of the corrected signals is realized, and the accuracy of the signals of the fire-fighting data in transmission is also ensured;
the noise reduction distortion circuit has a specific structure that a collector of a transistor Q1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with a base of a transistor Q2 and one end of a resistor R3 and one end of a capacitor C3, an emitter of a transistor Q2 is connected with one end of a capacitor C4 and a cathode of a diode D6, an anode of a diode D7, an emitter of a transistor Q1 and one end of a capacitor C3 are connected with ground, the other end of a capacitor C4 is connected with ground, a collector of a transistor Q2 is connected with an inductor L1, one end of a capacitor C5, the other end of an inductor L1 is connected with the other end of a resistor R3 and the other end of a capacitor C3, one end of a capacitor C3 and an anode of a diode D3, a non-inverting input end of an operational amplifier AR 3, the other end of an anti-phase resistor R3, the resistor R3 is connected with an emitter of a diode R3, the emitter of a transistor R3, the emitter of the transistor R36Q 3 and a negative electrode of the other end of the transistor R3, the emitter of the transistor R3 are connected with a resistor D3, the emitter of the transistor R3, the emitter of the transistor R3, the resistor D3, the emitter of the resistor D3, the emitter of the resistor D3, the resistor D3 is connected with the emitter of the transistor R3, the resistor D3, the emitter of the transistor R3, the emitter of the transistor R3, the transistor R3 and the emitter of the transistor D3, the emitter of the resistor D3, the emitter of the transistor D3, the emitter of the resistor D3, the emitter of the transistor D3, the emitter of the transistor D3, the emitter of the transistor D.
In the second embodiment, on the basis of the first embodiment, the filter transmitting circuit uses the inductor L, the capacitor C10 and the capacitor C11 to form a filter circuit to filter signal noise, and the filter circuit is sent into the control terminal through the signal transmitter E1 to correct the fire-fighting data signal received by the control terminal, so that the performance of the fire-fighting safety management system on the building site is improved, one end of the inductor L is connected to one end of the resistor R15 and the capacitor C10, the other end of the inductor L is connected to one end of the resistor R16 and one end of the capacitor C11, the other ends of the resistor R15, the capacitor C10 and the capacitor C11 are grounded, and the other end of the resistor R16 is connected to the signal transmitter E.
In a third embodiment, on the basis of the first embodiment, the frequency acquisition circuit selects a frequency collector J1 with the model of SJ-ADC to acquire the analog signal frequency in the output signal of the fire information acquisition module in the construction site, a voltage regulator tube D1 stabilizes voltage, a resistor R2 and a capacitor C1 are RC filter circuits, a power supply end of the frequency collector J1 is connected with +5V and one end of a resistor R1, a grounding end of the frequency collector J1 is grounded, an output end of the frequency collector J1 is connected with a negative electrode of the voltage regulator tube D1 and one end of a resistor R2, a positive electrode of the voltage regulator tube D1 is grounded, the other end of the resistor R2 is connected with one end of a capacitor C1 and a base electrode of a triode Q1, the other end of the capacitor C1 is grounded, and the other end of the resistor R1.
When the system is used specifically, the system comprises a control terminal, the internet of things, a building site fire information acquisition module, a display module and a signal correction module, fire data of a building site are acquired in real time by fire information of the building site, data formats are unified and then are sent to the control terminal through the internet of things, real-time fire safety data of the building site are displayed on the display module by comprehensive data information of the control terminal, workers can timely optimize and manage fire safety of the building site, the fire data information of the building site is acquired in real time by the signal correction module, meanwhile, signals are output by the signal correction module to be correction signals of analog signals received by the control terminal, the signal correction module comprises a frequency acquisition circuit, a noise reduction distortion circuit and a filter transmitting circuit, the frequency acquisition circuit acquires analog signal frequencies in the signals output by the building site fire information acquisition module, the noise reduction distortion circuit utilizes a triode Q1, a triode Q2 and a capacitor C2-C5 to form a circuit for signal frequency modulation, a triode C3, a capacitor C4 is a bypass capacitor, 4 is utilized by a triode C, a capacitor C1, an AR2 and a capacitor AR 27-C5 to form a filter circuit, a filter circuit for filtering signal amplitude of a triode C2, a signal amplifying circuit, a signal emitter 2, a signal amplifying circuit, a signal emitter, a 2 and a 2, a 2 for a 2, a 2 is utilized for a 2, the 2, a 2 for a 2, a 2 for a 2, a 2 for a 2, a 2 for a 2, a.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (1)
1. A building site fire safety management system based on the Internet of things comprises a control terminal, the Internet of things, a building site fire information acquisition module, a display module and a signal correction module, wherein the building site fire information acquisition module acquires fire data of a building site in real time, unifies data formats and sends the data to the control terminal through the Internet of things, the control terminal synthesizes data information and displays real-time fire safety data of the building site on the display module, so that workers can perform optimal management on the building site fire safety in time, the signal correction module performs real-time detection on the fire data information of the building site acquired by the building site fire information acquisition module in real time, and meanwhile, a signal output by the signal correction module is received by the control terminal;
the frequency acquisition circuit acquires analog signal frequency in signals output by the fire information acquisition module of the construction site, the noise reduction distortion circuit utilizes a frequency modulation circuit consisting of a triode Q1, a triode Q2 and a capacitor C2-a capacitor C5 to modulate the frequency of the signals, a noise reduction circuit consisting of an operational amplifier AR1, a diode D2 and a diode D3 is utilized to reduce the signal-to-noise ratio, a frequency selection circuit consisting of an emitter signal of the triode Q2, a capacitor C6-a capacitor C8 and a resistor R4-a resistor R6 is utilized to select the frequency of the signals, then the output signal of the noise reduction circuit and the output signal of the frequency selection circuit are utilized to prevent signal distortion through a composite circuit consisting of a triode Q4, a triode Q5, a diode D4 and a diode D5, and finally the operational amplifier AR 9 amplifies the signals in phase and then inputs the amplified signals into the filtering and transmitting circuit, wherein the triode Q6 and a triode Q7 are utilized to form a switching circuit which detects an operational amplifier 1 and filters the output signal potential difference, feeds back abnormal potential difference to the frequency modulation circuit, adjusts the amplitude of the selective frequency output signal, and finally the filtering transmitting circuit utilizes an inductor C L, a capacitor C;
the noise reduction distortion circuit comprises a transistor Q1, a collector of the transistor Q1 is connected with one end of a capacitor C2, the other end of a capacitor C2 is connected with a base of a transistor Q2 and one end of a resistor R3, one end of a capacitor C3, an emitter of a transistor Q2 is connected with one end of a capacitor C4 and a cathode of a diode D6, an anode of a diode D7, an emitter of a transistor Q1 and a capacitor C3, the other end of a capacitor C4 is connected with ground, a collector of a transistor Q2 is connected with an inductor L1, one end of a capacitor C5, the other end of an inductor 5 is connected with the other end of a resistor R5 and the other end of a capacitor C5, one end of a terminal of a capacitor C5 and an anode of a diode D5, a non-inverting input terminal of an operational amplifier AR 5, the other end of a resistor R5, the other end of an anti-phase input terminal AR 5, the resistor R5, the other end of an anti-emitter of an AR 5, the resistor R5, the emitter of the transistor R5 and the emitter of the resistor R36Q 5 are connected with the emitter of the transistor R36Q 5, the emitter of the transistor R36Q 5, the emitter of the transistor R36Q 5, the resistor D5, the emitter of the resistor D5, the emitter of the transistor R5, the emitter of the transistor R36Q 5, the resistor D5, the emitter of the resistor D36Q 5, the emitter of the transistor R5 is connected with the emitter of the transistor R5, the emitter of the transistor R5, the emitter of the resistor D36Q 5, the emitter of the transistor D36Q 5, the emitter of the transistor D5, the emitter of the transistor D5;
the filtering transmitting circuit comprises an inductor L2, one end of the inductor L2 is connected with one end of a resistor R15 and one end of a capacitor C10, the other end of the inductor L2 is connected with one end of a resistor R16 and one end of a capacitor C11, the other ends of the resistor R15, the capacitor C10 and the capacitor C11 are grounded, and the other end of the resistor R16 is connected with a signal transmitter E1;
the frequency acquisition circuit comprises a frequency collector J1 of an SJ-ADC model, wherein a power supply end of the frequency collector J1 is connected with +5V of a power supply and one end of a resistor R1, a grounding end of a frequency collector J1 is grounded, an output end of the frequency collector J1 is connected with a negative electrode of a voltage regulator tube D1 and one end of a resistor R2, a positive electrode of the voltage regulator tube D1 is grounded, the other end of the resistor R2 is connected with one end of a capacitor C1 and a base electrode of a triode Q1, the other end of the capacitor C1 is grounded, and the other end of the resistor R1 is connected with a collector electrode of a.
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| CN111245456B (en) * | 2020-03-01 | 2020-10-02 | 北京瞭望神州科技有限公司 | Service management system based on big data |
| CN112003579B (en) * | 2020-08-26 | 2021-04-27 | 广西电网有限责任公司电力科学研究院 | Thing networking signal transmission noise reduction system |
| CN113027531B (en) * | 2021-03-30 | 2022-02-01 | 河北交通职业技术学院 | Cold region tunnel freeze injury regulation and control system based on Internet of things |
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| US9059675B1 (en) * | 2012-04-09 | 2015-06-16 | Marvell International Ltd. | Filter for attenuating undesired frequencies in a signal |
| CN105991771B (en) * | 2016-06-01 | 2017-09-19 | 深圳市嘉泰智能股份有限公司 | Internet of Things fire-fighting system |
| CN109412627B (en) * | 2018-09-26 | 2019-08-06 | 郑州工程技术学院 | A kind of industrial control system based on Internet of Things |
| CN109194349B (en) * | 2018-09-30 | 2020-05-08 | 昆山市鹿通交通安全设施有限公司 | Building construction real-time monitoring system based on thing networking |
| CN109963124B (en) * | 2019-04-03 | 2020-12-08 | 王琪 | Distributed exhibition room environment monitoring system |
| CN110057986B (en) * | 2019-06-12 | 2020-01-21 | 郑州工程技术学院 | Atmospheric environment monitoring system based on big data |
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