CN110750060A - Automatic monitoring and managing system for environmental quality - Google Patents
Automatic monitoring and managing system for environmental quality Download PDFInfo
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- CN110750060A CN110750060A CN201910951124.0A CN201910951124A CN110750060A CN 110750060 A CN110750060 A CN 110750060A CN 201910951124 A CN201910951124 A CN 201910951124A CN 110750060 A CN110750060 A CN 110750060A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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Abstract
The invention discloses an automatic environmental quality monitoring and management system, which comprises a single chip microcomputer, a humidity sensor, a temperature sensor, a PM2.5 sensor, a carbon monoxide sensor, a vibration sensor, a display screen, an alarm module, an image acquisition module, an image processing module, a signal trigger and a power supply module, wherein the humidity sensor, the temperature sensor, the PM2.5 sensor, the carbon monoxide sensor, the vibration sensor, the display screen and the alarm module are all connected with the single chip microcomputer, and the image acquisition module is connected with the single chip microcomputer through the image processing module; the power supply module comprises a voltage input end, a first MOS (metal oxide semiconductor) tube, a first power supply, a first resistor, a second resistor, a first voltage regulator tube, a first capacitor, a second MOS tube, a second power supply, a third resistor, a sixth resistor, a second capacitor, a fourth resistor, a first triode, a second diode, a fifth resistor, a second triode, a third voltage regulator tube and a fourth capacitor. The circuit has higher safety and reliability.
Description
Technical Field
The invention relates to the field of environmental quality monitoring, in particular to an environmental quality automatic monitoring and management system.
Background
The automatic environmental air monitoring system is a latest scientific and technological product developed and developed based on the production technology of dry instruments, by utilizing the principle of a constant potential electrolytic sensor and combining the internationally mature electronic technology and the network communication technology. The system meets the requirements of various national technical indexes on the urban environment air automatic monitoring system, has stronger practicability and ideal cost performance ratio, and is an ideal instrument for carrying out urban environment air automatic monitoring. The power supply part of the traditional ambient air automatic monitoring system lacks corresponding circuit protection functions, such as: the lack of current limiting protection results in poor safety and reliability of the circuit.
Disclosure of Invention
The present invention provides an automatic monitoring and management system for environmental quality, which has high safety and reliability of the circuit, in order to solve the above-mentioned drawbacks of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic environment quality monitoring and management system is constructed and comprises a single chip microcomputer, a humidity sensor, a temperature sensor, a PM2.5 sensor, a carbon monoxide sensor, a vibration sensor, a display screen, an alarm module, an image acquisition module, an image processing module, a signal trigger and a power module, wherein the humidity sensor, the temperature sensor, the PM2.5 sensor, the carbon monoxide sensor, the vibration sensor, the display screen and the alarm module are all connected with the single chip microcomputer, the image acquisition module is connected with the single chip microcomputer through the image processing module, the signal trigger is respectively connected with the single chip microcomputer and the image acquisition module, and the power module is connected with the single chip microcomputer;
the power supply module comprises a voltage input end, a first MOS tube, a first power supply, a first resistor, a second resistor, a first voltage-regulator tube, a first capacitor, a second MOS tube, a second power supply, a third resistor, a sixth resistor, a second capacitor, a fourth resistor, a first triode, a second diode, a fifth resistor, a second triode, a third voltage-regulator tube and a fourth capacitor, wherein the voltage input end is respectively connected with a drain electrode of the first MOS tube and one end of the second resistor, a source electrode of the first MOS tube is connected with the first power supply through the first resistor, a grid electrode of the first MOS tube is respectively connected with the other end of the second resistor, a cathode of the first voltage-regulator tube, one end of the first capacitor, one end of the sixth resistor and a drain electrode of the second MOS tube, a grid electrode of the second MOS tube is respectively connected with one end of the third resistor, one end of the second power supply, one end of the fifth resistor and a collector electrode of the second triode, the base electrode of the first triode is respectively connected with one end of the second capacitor and one end of the fourth resistor, the collector electrode of the first triode is respectively connected with the other end of the sixth resistor and the cathode of the second diode, the base electrode of the second triode is respectively connected with the anode of the second diode, the other end of the fifth resistor, one end of the third capacitor and the cathode of the third voltage regulator tube, the emitter electrode of the second triode is respectively connected with the anode of the fourth capacitor and the first power supply, the anode of the first voltage regulator tube is respectively connected with the other end of the first capacitor, the source electrode of the second MOS tube, the other end of the second capacitor, the other end of the fourth resistor, the emitter electrode of the first triode, the other end of the third capacitor, the anode of the third voltage regulator tube and the cathode of the fourth capacitor, and the resistance value of the sixth resistor is 23k omega.
In the automatic environmental quality monitoring and management system, the power module further comprises a seventh resistor, one end of the seventh resistor is connected with the emitter of the second triode, the other end of the seventh resistor is connected with the first power supply, and the resistance value of the seventh resistor is 42k Ω.
In the automatic environmental quality monitoring and management system, the power supply module further comprises a fourth diode, an anode of the fourth diode is connected with the second power supply, a cathode of the fourth diode is connected with a collector of the second triode, and the type of the fourth diode is E-701.
In the automatic environmental quality monitoring and management system, the first MOS tube is an N-channel MOS tube.
In the automatic environmental quality monitoring and management system of the present invention, the second MOS transistor is an N-channel MOS transistor.
In the automatic environmental quality monitoring and management system of the present invention, the first triode is an NPN-type triode.
In the automatic environmental quality monitoring and management system of the present invention, the second triode is an NPN-type triode.
The automatic environment quality monitoring and management system has the following beneficial effects: the intelligent monitoring device is provided with a single chip microcomputer, a humidity sensor, a temperature sensor, a PM2.5 sensor, a carbon monoxide sensor, a vibration sensor, a display screen, an alarm module, an image acquisition module, an image processing module, a signal trigger and a power module, wherein the power module comprises a voltage input end, a first MOS (metal oxide semiconductor) tube, a first power supply, a first resistor, a second resistor, a first voltage regulator tube, a first capacitor, a second MOS tube, a second power supply, a third resistor, a sixth resistor, a second capacitor, a fourth resistor, a first triode, a second diode, a fifth resistor, a second triode, a third voltage regulator tube and a fourth capacitor, and the sixth resistor is used for current-limiting protection, so that the safety and reliability of the circuit are high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of an automatic environmental quality monitoring and management system according to the present invention;
fig. 2 is a schematic circuit diagram of the power supply module in the embodiment.
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 embodiment of the automatic environmental quality monitoring and management system of the present invention, a schematic structural diagram of the automatic environmental quality monitoring and management system is shown in fig. 1. In fig. 1, this environmental quality automatic monitoring management system includes singlechip 1, humidity transducer 2, temperature sensor 3, PM2.5 sensor 4, carbon monoxide sensor 5, vibration sensor 6, display screen 7, alarm module 8, image acquisition module 9, image processing module 10, signal trigger 11 and power module 2, wherein, humidity transducer 2, temperature sensor 3, PM2.5 sensor 4, carbon monoxide sensor 5, vibration sensor 6, display screen 7 and alarm module 8 all are connected with singlechip 1, image acquisition module 9 passes through image processing module 10 and is connected with singlechip 1, signal trigger 11 is connected with singlechip 1 and image acquisition module 9 respectively, power module 2 is connected with singlechip 1.
Humidity transducer 2 gathers the environment humidity signal, temperature sensor 3 gathers the environment temperature signal, PM2.5 sensor 4 gathers the environment PM2.5 signal, carbon monoxide sensor 5 gathers the environment carbon monoxide signal, with the environment humidity signal, the environment temperature signal, environment PM2.5 signal and environment carbon monoxide signal transmission to singlechip 1, and to the environment humidity signal, the environment temperature signal, environment PM2.5 signal and environment carbon monoxide signal carry out the AD conversion in proper order, signal amplification handles and filtering process, and signal value or waveform display after will handling are on display screen 7.
When the vibration value measured by the vibration sensor 6 is greater than the preset vibration threshold value, the single chip microcomputer 1 controls the signal trigger 11 to send an image acquisition trigger signal to the image acquisition module 9, the image acquisition module 9 starts to acquire image information around the urban environment quality monitoring system, and sends the acquired image around the urban environment quality monitoring system to the image processing module 10 for image processing, for example: the image processing module 10 transmits the processed image to the single chip microcomputer 1, the single chip microcomputer 1 judges whether the automatic environmental quality monitoring and managing system operates under the condition of artificial interference or not according to the received image information after the image processing, and if so, the alarm module 8 sends out alarm information, so that the phenomenon that the automatic environmental quality monitoring and managing system is interfered manually can be effectively prevented.
Fig. 2 is a schematic circuit diagram of a power module in this embodiment, in fig. 2, the power module 12 includes a voltage input terminal Vin, a first MOS transistor M1, a first power VCC, a first resistor R1, a second resistor R2, a first voltage regulator D1, a first capacitor C1, a second MOS transistor M2, a second power VDD, a third resistor R3, a sixth resistor R6, a second capacitor C2, a fourth resistor R4, a first triode Q1, a second diode D2, a fifth resistor R5, a second triode Q2, a third voltage regulator D3, and a fourth capacitor BAT, wherein the voltage input terminal Vin is connected to a drain of the first MOS transistor M1 and one end of the second resistor R2, a source of the first transistor M1 is connected to the first power supply terminal via a first resistor R1, a gate of the first MOS transistor M1 is connected to one end of the second resistor R6327, one end of the second resistor R2, a drain of the first resistor R86r 867, a cathode of the first resistor M8658, a gate of the second MOS transistor M2 is connected to one end of the third resistor R3, the second power supply VDD, one end of the fifth resistor R5, and a collector of the second transistor Q2, a base of the first transistor Q1 is connected to one end of the second capacitor C2 and one end of the fourth resistor R4, a collector of the first transistor Q1 is connected to the other end of the sixth resistor R6 and a cathode of the second diode D2, a base of the second transistor Q2 is connected to an anode of the second diode D2, one end of the fifth resistor R5, one end of the third capacitor C2, and a cathode of the third regulator D3, an emitter of the second transistor Q2 is connected to an anode of the fourth capacitor BAT and the first power supply VCC, an anode of the first regulator D1 is connected to the other end of the first capacitor C1, a source of the second MOS transistor M2, the other end of the second capacitor C5, the other end of the fourth resistor R4, and an emitter of the fourth resistor Q57324, The other end of the third capacitor C3, the anode of the third voltage regulator D3 and the cathode of the fourth capacitor BAT are connected.
In this embodiment, the sixth resistor R6 is a current limiting resistor for performing current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the sixth resistor R6 is located is large, the sixth resistor R6 can reduce the current of the branch where the sixth resistor R6 is located, so that the branch can be kept in a normal operating state, and the device in the circuit can not be burnt out due to too large current, so that the safety and reliability of the circuit are improved. It should be noted that, in the present embodiment, the resistance of the sixth resistor R6 is 23k Ω. Of course, in practical applications, the resistance of the sixth resistor R6 may be adjusted according to specific situations, that is, the resistance of the sixth resistor R6 may be increased or decreased according to specific situations.
The working principle of the power module 12 is as follows: the first resistor R1, the second resistor R2, the first capacitor C1 and the first MOS transistor M1 form an approximate constant-current charging circuit to charge the battery E1. When the voltage of the battery E1 reaches the starting voltage of the single chip microcomputer 1, the single chip microcomputer 1 starts to work, and the second power supply VDD has normal voltage. The third resistor R3 and the second MOS transistor M2 form a turn-off circuit, after the normal voltage of the second power supply VDD is output, the second MOS transistor M2 is switched on, the constant-current charging circuit is switched off, and the fact that loss does not exist in the part of circuits during normal work is guaranteed. The fifth resistor R5, the third capacitor C3, the second triode Q2, the third voltage regulator tube D3 and the battery E1 form a linear voltage stabilizing circuit, and stable power supply of the single chip microcomputer 1 is guaranteed. The second capacitor C2, the fourth resistor R4 and the first triode Q1 form an overvoltage protection circuit, when overvoltage is input, the OVP voltage is at a high level, the first triode Q1 is conducted, the constant-current charging circuit and the linear voltage stabilizing circuit are closed, the single chip microcomputer 1 is not powered, the whole circuit does not work, and the circuit can normally work after the input overvoltage state disappears.
In this embodiment, the first MOS transistor M1 is an N-channel MOS transistor, the second MOS transistor M2 is an N-channel MOS transistor, the first transistor Q1 is an NPN transistor, and the second transistor Q2 is an NPN transistor. Certainly, in practical applications, the first MOS transistor M1 may be a P-channel MOS transistor, the second MOS transistor M2 may be a P-channel MOS transistor, and the first triode Q1 and the second triode Q2 may also both adopt PNP-type triodes, but the structure of the circuit at this time also changes correspondingly.
In this embodiment, the power module 12 further includes a seventh resistor R7, one end of the seventh resistor R7 is connected to the emitter of the second transistor Q2, and the other end of the seventh resistor R7 is connected to the first power VCC. The seventh resistor R7 is a current limiting resistor, and is used for current limiting protection of the emitter current of the second transistor Q2. The current limiting protection principle is as follows: when the emitter current of the second triode Q2 is large, the seventh resistor R7 can reduce the emitter current of the second triode Q2 to keep the second triode Q2 in a normal working state, so that the elements in the circuit are not burnt out due to too large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the seventh resistor R7 is 42k Ω. Of course, in practical applications, the resistance of the seventh resistor R7 may be adjusted according to specific situations, that is, the resistance of the seventh resistor R7 may be increased or decreased according to specific situations.
In this embodiment, the power module 12 further includes a fourth diode D4, an anode of the fourth diode D4 is connected to the second power source VDD, and a cathode of the fourth diode D4 is connected to a collector of the second transistor Q2. The fourth diode D4 is a current limiting diode for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the fourth diode D4 is located is large, the current of the branch where the fourth diode D4 is located can be reduced by the fourth diode D4, so that the branch can be kept in a normal operating state, and the device in the circuit is not burned out due to the large current, so as to further enhance the safety and reliability of the circuit. It should be noted that in the present embodiment, the fourth diode D4 has a model number of E-701. Of course, in practical applications, the fourth diode D4 may also be another type of diode with similar functions.
In short, in this embodiment, since the current-limiting resistor is provided in the power module 12, the safety and reliability of the circuit are high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. An automatic environmental quality monitoring and management system is characterized by comprising a single chip microcomputer, a humidity sensor, a temperature sensor, a PM2.5 sensor, a carbon monoxide sensor, a vibration sensor, a display screen, an alarm module, an image acquisition module, an image processing module, a signal trigger and a power module, wherein the humidity sensor, the temperature sensor, the PM2.5 sensor, the carbon monoxide sensor, the vibration sensor, the display screen and the alarm module are all connected with the single chip microcomputer;
the power supply module comprises a voltage input end, a first MOS tube, a first power supply, a first resistor, a second resistor, a first voltage-regulator tube, a first capacitor, a second MOS tube, a second power supply, a third resistor, a sixth resistor, a second capacitor, a fourth resistor, a first triode, a second diode, a fifth resistor, a second triode, a third voltage-regulator tube and a fourth capacitor, wherein the voltage input end is respectively connected with a drain electrode of the first MOS tube and one end of the second resistor, a source electrode of the first MOS tube is connected with the first power supply through the first resistor, a grid electrode of the first MOS tube is respectively connected with the other end of the second resistor, a cathode of the first voltage-regulator tube, one end of the first capacitor, one end of the sixth resistor and a drain electrode of the second MOS tube, a grid electrode of the second MOS tube is respectively connected with one end of the third resistor, one end of the second power supply, one end of the fifth resistor and a collector electrode of the second triode, the base electrode of the first triode is respectively connected with one end of the second capacitor and one end of the fourth resistor, the collector electrode of the first triode is respectively connected with the other end of the sixth resistor and the cathode of the second diode, the base electrode of the second triode is respectively connected with the anode of the second diode, the other end of the fifth resistor, one end of the third capacitor and the cathode of the third voltage regulator tube, the emitter electrode of the second triode is respectively connected with the anode of the fourth capacitor and the first power supply, the anode of the first voltage regulator tube is respectively connected with the other end of the first capacitor, the source electrode of the second MOS tube, the other end of the second capacitor, the other end of the fourth resistor, the emitter electrode of the first triode, the other end of the third capacitor, the anode of the third voltage regulator tube and the cathode of the fourth capacitor, and the resistance value of the sixth resistor is 23k omega.
2. The environmental quality automatic monitoring and management system according to claim 1, wherein the power supply module further comprises a seventh resistor, one end of the seventh resistor is connected to the emitter of the second triode, the other end of the seventh resistor is connected to the first power supply, and the resistance of the seventh resistor is 42k Ω.
3. The environmental quality automatic monitoring and management system according to claim 2, wherein the power module further comprises a fourth diode, an anode of the fourth diode is connected to the second power supply, a cathode of the fourth diode is connected to a collector of the second triode, and the fourth diode is of type E-701.
4. The environmental quality automatic monitoring and management system according to any one of claims 1 to 3, characterized in that the first MOS transistor is an N-channel MOS transistor.
5. The environmental quality automatic monitoring and management system according to any one of claims 1 to 3, characterized in that the second MOS transistor is an N-channel MOS transistor.
6. The system according to any one of claims 1 to 3, wherein the first transistor is an NPN transistor.
7. The system according to any one of claims 1 to 3, wherein the second transistor is an NPN transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910951124.0A CN110750060A (en) | 2019-10-08 | 2019-10-08 | Automatic monitoring and managing system for environmental quality |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910951124.0A CN110750060A (en) | 2019-10-08 | 2019-10-08 | Automatic monitoring and managing system for environmental quality |
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| CN110750060A true CN110750060A (en) | 2020-02-04 |
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| CN201910951124.0A Pending CN110750060A (en) | 2019-10-08 | 2019-10-08 | Automatic monitoring and managing system for environmental quality |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306247A (en) * | 2020-03-04 | 2020-06-19 | 克莱斯克斯轴承(北京)有限公司 | Innovative annular shock absorber |
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2019
- 2019-10-08 CN CN201910951124.0A patent/CN110750060A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306247A (en) * | 2020-03-04 | 2020-06-19 | 克莱斯克斯轴承(北京)有限公司 | Innovative annular shock absorber |
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