CN104502534A - Portable car-mounted atmospheric environment real-time monitoring device - Google Patents
Portable car-mounted atmospheric environment real-time monitoring device Download PDFInfo
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- CN104502534A CN104502534A CN201410776269.9A CN201410776269A CN104502534A CN 104502534 A CN104502534 A CN 104502534A CN 201410776269 A CN201410776269 A CN 201410776269A CN 104502534 A CN104502534 A CN 104502534A
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Abstract
The invention discloses a portable car-mounted atmospheric environment real-time monitoring device. The portable car-mounted atmospheric environment real-time monitoring device comprises a gas collection and detection module, a data acquisition control module, a location module, a wireless communication module, a power supply conversion module and a power supply protection module and is used for realizing a real-time in-situ monitoring function for a wide-range atmospheric environment. The gas collection and detection module is used for collecting atmospheric air in real time and for detecting the atmospheric environment; the data acquisition control module is used for acquiring data of a gas sensor module and the positioning module in real time and also used for controlling the work state of the gas collection and detection module; the data acquisition control module is used for analyzing and packaging the acquired atmospheric environment and location data and displaying the data in real time and also for transmitting the data to a remote management center through the wireless communication module so as to analyze the condition of the atmospheric environment.
Description
Technical field
The invention belongs to atmosphere environment supervision technology, relate to a kind of vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS.
Background technology
Along with the raising of China's expanding economy and people's living standard, many harm that atmospheric pollution brings more and more receives the concern of people, and the atmosphere environment supervision as environmental protection element task highlights its importance gradually.By to the assessment of atmosphere environment supervision data and analysis, can to manage for atmospheric environment, decision-making foundation that pollution source apportionment and improvement, environmental planning etc. provide science.
The atmosphere environment supervision method that current China mainly adopts mainly contains following three kinds:
The first adopts artificial parent to go to scene to air sampling, and take back the method for lab analysis, the monitoring equipment used is relatively simple, fetches again, calculate composition and the concentration of gas according to chemical reaction result after needing that gas absorption liquid is put into monitoring field a period of time.But this kind of method is affected by human factors comparatively large, and resample area is limited, and detect gas single, monitoring result is delayed, and chemical reagent can cause environmental pollution to a certain degree.In addition, when the scene that pollutant levels are very high is monitored, infringement that can be huge to the healthy generation of monitoring personnel, current general little application.
The second is the method adopting environmental monitoring station automatically to monitor, and can realize, to the Real-time Collection of the oxides of nitrogen existed in air, oxycarbide isoconcentration information, having the advantage that measurement data is accurate, measurement sensistivity is high.But, the monitoring equipment complex structure of monitoring station, price comparison costliness (often overlapping about 2,000,000 yuans), and operation cost very high (about about 300,000 yuan of annual running cost), this kind of method is difficult to popularize on a large scale, mostly be applied in some big cities or important area at present, decide once position, monitoring station and be just difficult to change again, mobility is poor.Simultaneously, these large-scale monitoring equipments are very harsh to the requirement of working environment, many site environments are difficult to the request for utilization reaching equipment, and these factors significantly limit its application on a large scale or in desired target area (as poisonous, the poisonous gas leakage region that happens suddenly).
The third is the method adopting portable air monitoring car, and this car comprises monitoring car body, is integrated with the parts such as atmospheric surveillance unit, execute-in-place unit and remote control table in it.Pass through air monitoring car, the Real-Time Monitoring of the air regime to locality can be realized, simultaneously, can ensure to arrive at scene rapidly after contamination accident occurs, the application monitoring instrument very first time finds out pollutant kind, pollution level, pollution range and development trend, for decision-making section provides technical basis.Air monitoring car has very strong emergency capability, be equivalent to the air quality monitoring station of a flowing, but, this car is converted through professional refitting factory by special vehicle, in addition some high precision exact instrument such as integration air quality automatic testing instrument device, meteorological system in car, car load expensive (each car is greatly about 3,000,000 Renminbi), operation expense is high, very difficult realization is popularized on a large scale, cannot accomplish that monitoring map returns function in real time.
The application of Environmental Protection in China field Internet of Things is started late, and current most of project is also in concept and exploratory stage, lacks System design, not yet constructs the actual environmental management application platform based on Internet of Things.Therefore, the research of the domestic environmental management application platform based on Internet of Things and system need to comprise " perceptive object selection, sensing network foundation, data processing method, application system research and development and management mode design " whole flow process, to instruct and to be applied to practice.
Summary of the invention
In view of this, fundamental purpose of the present invention be to provide a kind of reliable, economical, cover comprehensively, the vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS that air regime data acquisition is real-time and method for supervising.
The described vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS comprises gas collecting and detection module, data acquisition and control module, GPS module, wireless communication module, power transfer module and power source protective module, is used for realizing the real-time on-site monitoring function of atmospheric environment on a large scale; The described vehicle mounted portable atmospheric environment method for real-time monitoring based on ArcGIS refers to and is arranged in public transport or communal facility (bus or taxi) by the vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS, and the atmosphere environment supervision data collected are sent to remote data management center in real time in the mode of wireless transmission.Described remote data management center comprises the communication server, database server, management server and application terminal, the communication server is used for carrying out long-range connection with monitoring point, database server is provided with database, management server is provided with monitoring software, application terminal is provided with corresponding application program, can gathers atmosphere environment supervision data, store, process, analyze and show.This Internet of Things atmospheric environment vehicle-mounted monitoring method is the monitoring of on-the-spot air regime, judgement, assessment and analysis provide one in real time, on the spot, economical, reliable and stable and cover comprehensive monitoring means.
According to embodiments of the invention, provide a kind of vehicle mounted portable atmospheric environment real-time monitoring device, comprising: gas collecting and detection module (2), for Real-time Collection atmospheric environment data; Data acquisition and control module (1), for controlling the collection of atmospheric environment data; Locating module (6), for determining current Real-Time Monitoring position, and exports locating information; Wireless communication module (3), for by communication, sends atmospheric environment data and locating information; Power transfer module (4), for being converted to described data acquisition and control module (1), described wireless communication module (3), described locating module (6) and described gas collecting and detection module (2) required voltage separately respectively by the voltage of vehicle power; Wherein, described power transfer module (4) is connected with detection module (2), described data acquisition and control module (1), described locating module (6), described wireless communication module (3) with described gas collecting, wherein, described gas collecting is also connected with described data acquisition and control module (1) with detection module (2), and described data acquisition and control module (1) is also connected with detection module (2), described wireless communication module (3) with described locating module (6), described gas collecting.
According to embodiments of the invention, provide a kind of vehicle mounted portable monitoring device of the real-time on-site being used for realizing atmospheric environment on a large scale.This device comprises gas collecting and detection module, data acquisition and control module, locating module, wireless communication module, power transfer module and power source protective module.Gas collecting and detection module are used for Real-time Collection atmospheric environment data; Data acquisition and control module is for controlling the collection of atmospheric environment data; Locating module for determining current Real-Time Monitoring position, and exports locating information; Wireless communication module is used for by communication, sends atmospheric environment data and locating information; Power transfer module is used for the voltage of vehicle power to be converted to described data acquisition and control module, wireless communication module, locating module and gas collecting and detection module required voltage separately respectively.Wherein, described power transfer module is connected with detection module, data acquisition and control module, locating module, wireless communication module with described gas collecting.Described gas collecting is also connected with data acquisition and control module with detection module, and described data acquisition and control module is also connected with control module, wireless communication module with locating module, gas collecting.
Described gas collecting and detection module comprise gas admittance valve, gas samping pump, gas sensor module, vent valve, off-gas pump and flowmeter.Particular by control gas admittance valve, air is introduced gas samping pump, by gas samping pump, air is introduced gas sensor module, ozone sensor, SO 2 sensor, nitrogen dioxide sensor, nitric oxide sensor and PM2.5 sensor are installed in gas sensor module, also can other gas concentration detecting sensors of combination in any, as atmospheric environment detected parameters sensors such as carbon dioxide, methane, moisture.After gas sensor module detects atmospheric environment data, by control vent valve, gas is imported off-gas pump emptying, flowmeter display gas flow is installed between vent valve and off-gas pump.
Described data acquisition and control module can adopt ARM-Linux core board to gather the data of gas sensor module and locating module, utilize the GPIO interface connected electromagnetic valve control module of ARM-Linux core board simultaneously, controlled the duty of gas admittance valve, vent valve by control unit of electromagnetic valve.Its ARM-Linux core board is reserved with the standard interface such as serial ports, CAN with AD and is connected with detection module with gas collecting, and locator data is sent to ARM-Linux core board by serial communication modular by GPS module.The every atmospheric environment data detected are transferred to the ARM-Linux core board of data acquisition and control module by gas collecting and detection module, the atmospheric environment data collected and GPS locator data are carried out resolving and are processed with packing by ARM-Linux system, finally data are presented at car-mounted display and controller, and data can be sent to remote management center by wireless communication module and show at pc client.Data acquisition and control module is also designed with memory module simultaneously, for storing the atmospheric environment of monitoring and corresponding locator data.
This vehicle mounted portable atmospheric environment real-time monitoring device is designed with power source protective module based on vehicle power and power transfer module, can be arranged on public transport or the upper vehicle power that adopts of communal facility (bus or taxi) is powered.
Described power source protective module and power transfer module are used for the voltage of vehicle power to be converted to described data acquisition and control module, wireless communication module, locating module and gas collecting and detection module required voltage separately respectively.Described power source protective module described power transfer module prime and be connected with described vehicle power, for preventing overcurrent, reversal connection and surge on the impact of vehicle power.Gas collecting and detection module and vehicle power can also be isolated by described power transfer module, prevent gas collecting and detection module from damaging and have influence on vehicle power.The circuit of described solenoid control electricity unit controls air inlet and the exhaust of gas samping pump and off-gas pump especially by Controlling solenoid valve, thus reaches the object that real-time on-site detects atmospheric environment on a large scale.
Tool of the present invention has the following advantages and beneficial effect.
Routine monitoring index ozone, sulphuric dioxide, nitrogen dioxide, nitrogen monoxide and PM2.5 in the on-the-spot air of the atmospheric sensor module Real-time Obtaining of the vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS of the present invention and other are as the concentration information of the gases such as carbon dioxide, methane, moisture and particulate, carry out after data processing through data acquisition and control module, be sent to remote data management center by wireless communication module again, judge with the real-time on-site realizing atmospheric environment situation, assess and trend analysis.Therefore, the described vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS compensate for the deficiency that China's current atmospheric environmental monitoring technology exists effectively, to the monitoring of atmospheric environment, there is stronger real-time and polarization, gas-monitoring wide variety, the comprehensive consideration to Regional Atmospheric Environment can be realized, and the mode stability of sensor image data monitoring is strong, reliability is high, without using chemical reagent, has practiced environmental protection concept to a certain extent.
Meanwhile, the GPS module of the described vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS utilizes ArcGIS specialty aim software to carry out secondary development.Comprehensive based on ArcGIS software, scalable structure of integration system characteristic and map view module are except comprising amplification, reduce, translation, beyond the conventional map basic operations such as Distance geometry area measurement, also comprise data investigation, map type book mark manages, system such as to be changed the line map at the function, facilitate user's fast browsing, map area function interested to location, these special facilitating functions are utilized to achieve the target of overall monitor atmospheric information index to a certain extent, and just gas sensor collection gas index positional information can pass to data acquisition and control module in real time, well achieve real-time on-site and follow the trail of air environmental pollution degree function.
Secondly, the described vehicle mounted portable atmospheric environment method for real-time monitoring based on ArcGIS make use of Internet of Things complete perception technology preferably, atmospheric environment real-time monitoring device is installed on the public or special vehicles, achieving guarded region covers comprehensively, monitoring site does not need artificial long-term, the comprehensively monitoring that participate in just easily specifying Air seriously polluted district, essential industry garden and dense population areas etc. the air quality in place, not only effectively ensured personal safety and the health of monitoring personnel, and this system there is good portability.
The described vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS and method for supervising can not only monitor atmospheric environment situation by real-time on-site, and the stability that Monitoring Data is transmitted and reliability can be ensured, monitored area broad covered area, monitoring periods is continuous, monitoring means is advanced, efficient, and has good economic, portable strong, significantly reduce the cost of atmosphere environment supervision, improve the monitoring efficiency of atmospheric ambient air situation.
In addition, the described vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS solves current atmosphere environment supervision technology cost of labor, problem that equipment cost is high well, has good economic benefit.The remote data management center display atmosphere environment supervision result of the described vehicle mounted portable atmospheric environment method for real-time monitoring based on ArcGIS by setting up, scientific basis can be provided for environmental management, pollution source apportionment, environmental planning etc., there is good social benefit.
Accompanying drawing explanation
Fig. 1 is according to an embodiment of the invention based on the general conception figure of the vehicle mounted portable atmospheric environment real time monitoring apparatus of ArcGIS;
Fig. 2 is according to an embodiment of the invention based on the structural representation of the vehicle mounted portable atmospheric environment real-time monitoring device of ArcGIS;
Fig. 3 is the inner structure of gas collecting and detection module according to an embodiment of the invention and outside connection diagram;
Fig. 4 is the inner structure of data acquisition and control module according to an embodiment of the invention and outside connection diagram;
Fig. 5 is the circuit diagram of power source protective module according to an embodiment of the invention;
Fig. 6 is the circuit diagram of power transfer module according to an embodiment of the invention;
Fig. 7 is the circuit diagram of control unit of electromagnetic valve according to an embodiment of the invention; And
Fig. 8 is the process flow diagram of data acquisition and control module according to an embodiment of the invention.
Embodiment
Below, by reference to the accompanying drawings the enforcement of technical scheme is described in further detail.
Although those skilled in the art will appreciate that the following description relates to a lot of ins and outs of embodiment for the present invention, this is only the example for principle of the present invention is described and does not mean that any restriction.The present invention can be applicable to be different from the occasion outside the following ins and outs exemplified, as long as they do not deviate from principle of the present invention and spirit.
In addition, miscellaneous in order to avoid making the description of this instructions be limited to, in description in this manual, the process such as omission, simplification, accommodation may have been carried out to the portion of techniques details that can obtain in prior art data, this is understandable for a person skilled in the art, and this can not affect the open adequacy of this instructions.
Fig. 1 is according to an embodiment of the invention based on the figure of the vehicle mounted portable atmospheric environment real time monitoring apparatus of ArcGIS.
With reference to accompanying drawing 1, according to embodiments of the invention, first, realized the Real-time Collection of on-the-spot air regime data on a large scale by the portable atmospheric environment real-time monitoring device be arranged on the mobile traffic such as bus or taxi, then, utilize Internet of Things wireless sensor technology, the atmosphere environment supervision data collected are linked into radio network gateway in the mode of GPRS radio communication (or other various mobile communication means of such as 3G, 4G etc.), radio network gateway is linked into wireless signal receiver by base station (i.e. signal terminal) again, by this wireless signal receiver, atmosphere environment supervision data is sent to remote data management center subsequently, finally, in described remote data management in the heart, the communication server receives and gathers atmosphere environment supervision data, and be stored in the database on database server, by the diagnostic center that the monitoring software of management server is built-in, can to field monitoring data analysis, process, with realization to the judgement of on-the-spot air regime and assessment, Monitoring Data and analysis result are sent to the application terminal of user the most at last, be presented on the software interface of application terminal by visual means intuitively, user is facilitated to carry out the Real-Time Monitoring of atmospheric environment situation by application terminal.
Fig. 2 is according to an embodiment of the invention based on the structural representation of the vehicle mounted portable atmospheric environment real-time monitoring device of ArcGIS.
With reference to accompanying drawing 2, the vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS comprises data acquisition and control module 1, GPS module 6, gas collecting and detection module 2, wireless communication module 3, power transfer module 4 and power source protective module 5.
Wherein, power source protective module 5 is connected with power transfer module 4; power transfer module 4 is connected with detection module 2, data acquisition and control module 1, GPS module 6 and wireless communication module 3 with gas collecting; gas collecting is also connected with data acquisition and control module 1 and GPS module 6 with detection module 2, and data acquisition and control module 1 is also connected with GPS module 6 and wireless communication module 3.
Described gas collecting and detection module 2 can comprise ozone sensor, SO 2 sensor, nitrogen dioxide sensor, nitric oxide sensor and PM2.5 sensor, etc., also can other gas concentration detecting sensors of combination in any, as sensors such as carbon dioxide, methane, moisture, etc.
Described data acquisition and control module 1 is the ECU (Electrical Control Unit) of whole device, is provided with the multiple expansion interface be connected with other modules.
Described GPS module 6 is position positioning units of whole device, Object-Oriented Programming Languages Visual C# and secondary development components ArcGIS Engine can be adopted, based on Client/Server system structure exploitation, utilize GIS data layer in ArcMap application program tissue and control data frame, the data on the server of having by oneself and map is used again by ArcGIS Explorer, and use with the data aggregate on other servers, collection atmospheric sensor information Location Information is passed to data acquisition and control module 1 with the form of map datum, for remote data management centralized administrator real-time on-site gas-monitoring index provides convenient.
Described wireless communication module 3 can adopt the mode of GPRS radio communication.
The applicable power supply of described power transfer module 5 for by the 24/12V Power convert of vehicle itself being such as 5V, to be the energize portions such as data acquisition and control module 1, GPS module 6 and wireless communication module 3.
Described power source protective module 4 is positioned at the prime of power transfer module 5, for whole device provides power supply protection.
Fig. 3 is the inner structure of gas collecting and detection module 2 according to an embodiment of the invention and outside connection diagram.
As shown in Figure 3, by controlling gas admittance valve 21, air is introduced gas samping pump 22, sample gas is introduced gas sensor module 23 by conduit by sampling pump 22, ozone sensor, SO 2 sensor, nitrogen dioxide sensor, nitric oxide sensor and PM2.5 sensor are installed in gas sensor module 23, also can other gas concentration detecting sensors of combination in any, as sensors such as carbon dioxide, methane, moisture.
The every gas data detected is transferred to data acquisition and control module 1 by gas sensor module 23, the data collected are carried out resolving and are processed with packing by data acquisition and control module 1, finally data are presented at car-mounted display and controller, and data can be sent to remote server by communication and show in client.Gas sensor module 23 needs to detect new air index, therefore vent valve 24 vent gas is installed between gas sensor module 23 and off-gas pump, by control vent valve 24, gas is imported off-gas pump 25 and carry out vent gas, flowmeter 26 is installed between vent valve 24 and off-gas pump 25 and shows gas flow.
Fig. 4 is the inner structure of data acquisition and control module 1 according to an embodiment of the invention and outside connection diagram.
As shown in Figure 4, data acquisition and control module 1 comprise ARM-Linux core board 11, control unit of electromagnetic valve 16, storer 12, serial communication modular 17.ARM-Linux System Core core 11 adopts technical grade control technology, sensor data acquisition module 16 comprises RS485, RS232 serial ports, (gas sensor module 2 can include the sensor of RS485, RS232 and CAN communication interface to CAN, therefore these three kinds of interfaces reserved are used for the data of data acquisition and control module pick-up transducers) standard data interface such as communication grade, also be reserved with 12 AD high-accuracy data acquisition ports, the sensor of various interface can be connected.The work that control unit of electromagnetic valve 16 is used to control gas admittance valve 21 and vent valve 24 is posed, thus realizes the sampling of air and emptying.Communicated by RS232 agreement between wireless communication module 3, GPS module 6 with ARM-Linux System Core core 11, wireless communication module 3 is used for the locator data of air index that remote transmission monitors and GPS module 18.
Fig. 5 is the circuit diagram of power source protective module 5 according to an embodiment of the invention.
As shown in Figure 5, be connected in parallel the diode of 5 mutual redundancy backups at the incoming end of vehicle-mounted 24V (or 12V) power supply, prevent power positive cathode from connecing instead.
Be connected with resettable fuse (F1) in circuit, the excessive or short circuit of mains input current can be prevented.
As shown in Figure 5, Transient Suppression Diode TVS1 and TVS2 be the two ends that input at power supply of reversal connection each other, can suppress surge.
The two ends variety classes in parallel of power supply (such as, alminium electrolytic condenser, tantalum electrochemical capacitor and ceramic condenser etc.) with electric capacity C12, C11 and C8 of capacitance, resistance R415 can adopt power to be 2W resistance to be the resistance of 15 Ω, form RC filtering circuit with electric capacity C12, C11, the clutter of filter out power can be played, reduce the effect of mains voltage ripple.
Diode D5 is connected between Vin and VDS output terminal, can play the effect carrying out isolating for the vehicle power (12/24V changes through power transfer module 4) of+5V power electronic equipment and the VDS power end of powering for+24V consumer.Like this, even if VDS power end is burned, be unlikely to the normal work of the other+5V electronic equipments having influence on vehicle.VDS power end is used for exporting+24 voltages, to power for gas collecting and detection module 2.
IN_4275 end is the output terminal of power source protective module 5, and for exporting+24V voltage, the power transfer module 4 for rear class is converted into+5V voltage.
Fig. 6 is the circuit diagram of power transfer module 4 according to an embodiment of the invention.
As shown in Figure 6, its chips U2 is that+24V (or 12V) turns+5V voltage conversion chip (model can be TLE4275), the output terminal IN_4275 of wherein said power source protective module 5 holds with the input end I of power conversion chip U2 and is connected, RO end is Enable Pin, the output terminal Q of U2 is the output terminal (VCC) of+5V, at output terminal variety classes in parallel (such as, alminium electrolytic condenser, tantalum electrochemical capacitor and ceramic condenser etc.) with the electric capacity C10 of capacitance, C15 and C13, play the effect of filtering, VCC is used for data acquisition and control module 1, radio communication mold. block 3 and GPS module 6 are powered.The GND of voltage conversion chip U2 holds ground connection, and the output reset delay end D of U2 and the indirect electric capacity C14 of ground GND, for arranging the time delay of reset.The Enable Pin RO of voltage conversion chip U2 holds with the RST of ARM-Linux core board and is connected, RST end is the universal input and output port of ARM-Linux core board, ARM-Linux core board can the control RST output of holding by program, thus the output terminal Q of control voltage conversion chip U2 resets.The RO end being TLE4275 due to model only could normal export when connecing high level (+5V), therefore will connect the voltage that a pull-up resistor R6 draws high RO port and could keep normal output voltage between power supply VCC and RO holds.Ceramic condenser C9 is connected for input power filtering between the input end I and ground GND of voltage conversion chip U2.
Fig. 7 is the circuit diagram of control unit of electromagnetic valve according to an embodiment of the invention.Wherein the circuit of control unit of electromagnetic valve is connected with vent valve with the gas admittance valve of gas data acquisition and controlling module 2, for controlling the duty of gas admittance valve and vent valve.As shown in Figure 7, adopt the base stage of the PWM port connecting triode Q1 of data acquisition and control module 1, PWM port is the output pulse width modulation port of the ARM-Linux core board in data acquisition and control module 1, the dutycycle of pwm pulse can be controlled by programming, therefore adopt the output voltage of the pulse width modulation controlled control unit of electromagnetic valve of PWM, thus control the duty of gas admittance valve, vent valve.The electric current that PWM holds can amplify by the collector of triode Q1, thus driving model is the conducting of the high power intelligent field effect transistor switch pipe U1 of BTS550P, and utilize the switching characteristic of triode Q1 to control conducting and the shutoff of high-power switch tube U1, reach the object of the opening and closing of Controlling solenoid valve, wherein the indirect resistance R1 of the PWM end of ARM-Linux core board and the base stage of triode Q1 is used for current limliting, the direct ground connection GND of emitter of triode Q1, connects pull-up resistor R2 between collector and+24V power vd S.The input end IN of high power intelligent field effect transistor switch pipe U1 connects the collector of triode Q1, the indirect pull down resistor R8 of sheet choosing end IS and ground GND, holds as low level for keeping IS.U1 has two output terminal OUT short circuits, and for meeting the control end Valve_control of solenoid valve, VBB meets+24V power vd S.When the U1 conducting of high power intelligent field effect transistor switch pipe, two OUT ends and VBB termination are led to, and OUT is end+24V power vd S, otherwise OUT end and VBB end disconnect.Solenoid control end Valve_control and ground GND connects negative pole and the positive pole of fast quick-recovery switching diode D1 respectively; for the protection of the solenoid valve (Valve) of gas collecting and control module, prevent the instant cut-off electric current backflow of high power intelligent field effect transistor switch pipe.
Fig. 8 is the control flow chart of described data acquisition and control module 1.As shown in Figure 8, after device power, first to control gas admittance valve 21 air inlet, gas is imported gas collecting and detection module 1 by gas samping pump 22, if detect that gas samping pump 22 air inlet is complete, then carry out the detection of air achievement data again, if non-air inlet is complete, then again control gas admittance valve 21 air inlet, till air inlet is complete.
First signal denoising process is carried out to the air achievement data detected and GPS locator data, then data is carried out packing, preserving and be presented on car-mounted display instrument, and be sent to remote server by wireless communication module, show at pc client.Finally, also to control vent valve 24 and the gas be detected is carried out emptying process, after completing a circulation, enter next circulation again.
In sum, referring to based on the vehicle mounted portable atmospheric environment method for real-time monitoring of ArcGIS is according to an embodiment of the invention arranged in public transport (bus or taxi) by the described vehicle mounted portable atmospheric environment real-time monitoring device based on ArcGIS, utilize technology of Internet of things, by the mode of GPRS wireless transmission, the atmosphere environment supervision data collected are sent to remote data management center in real time, thus provide a kind of monitoring means for the monitoring of on-the-spot air regime, judgement, assessment and analysis.
In sum, those skilled in the art will appreciate that and can make various amendment, modification and replacement to the above embodiment of the present invention, it all falls into the protection scope of the present invention as claims limit.
Claims (10)
1. a vehicle mounted portable atmospheric environment real-time monitoring device, comprising:
Gas collecting and detection module (2), for Real-time Collection atmospheric environment data;
Data acquisition and control module (1), for controlling the collection of atmospheric environment data;
Locating module (6), for determining current Real-Time Monitoring position, and exports locating information;
Wireless communication module (3), for by communication, sends atmospheric environment data and locating information;
Power transfer module (4), for being converted to described data acquisition and control module (1), described wireless communication module (3), described locating module (6) and described gas collecting and detection module (2) required voltage separately respectively by the voltage of vehicle power;
Wherein, described power transfer module (4) is connected with detection module (2), described data acquisition and control module (1), described locating module (6), described wireless communication module (3) with described gas collecting
Wherein, described gas collecting is also connected with described data acquisition and control module (1) with detection module (2), and described data acquisition and control module (1) is also connected with detection module (2), described wireless communication module (3) with described locating module (6), described gas collecting.
2. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 1, also comprises:
Power source protective module (5), it is connected to the prime of described power transfer module (4) and is connected with described vehicle power, for preventing overcurrent, reversal connection and surge on the impact of vehicle power.
3. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 2, wherein, described power source protective module (5) comprising:
At the multiple anti-reverse diode (D2, D3, D6, D7, D8) that the vehicle power input side of described power source protective module (5) is connected in parallel, connect instead for preventing power positive cathode;
Resettable fuse (F1), it is connected to the rear class of anti-reverse diode, for preventing the excessive or short circuit of mains input current.
Transient Suppression Diode (TVS1, TVS2), its reversal connection at the two ends of the input side of described vehicle power, for suppressing surge.
4. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 3, wherein, described power source protective module (5) also comprises:
At the electric capacity (C12, C11, C8) of the Power convert outgoing side (IN_4275) of vehicle power input side and described power source protective module (5) different types of and capacitance in parallel.
5. the vehicle mounted portable atmospheric environment real-time monitoring device according to claim 3 or 4, wherein, described power source protective module (5) also comprises:
Isolating diode (D5); it is connected between the vehicle power outgoing side (VDS) of described power source protective module (5) and described resettable fuse (F1); for the output voltage of the output voltage of Power convert outgoing side (IN_4275) and vehicle power outgoing side (VDS) is isolated
Wherein, the output voltage of described vehicle power outgoing side (VDS) is used for powering for described gas collecting and detection module (2).
6. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 5, wherein, described power transfer module (4) comprising:
Voltage conversion unit (U2), for being the first voltage and the second voltage by the voltage transitions of vehicle power, wherein, first voltage is used for powering for described gas collecting and detection module (2), second voltage is used for for the power supply of described data acquisition and control module (1), described wireless communication module (3) and described locating module (6)
Wherein, the output terminal of described voltage conversion unit (U2) is connected in parallel multiple electric capacity (C10, C15, C13), for carrying out filtering.
7. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 6, wherein, described gas collecting and detection module (2) comprising:
Gas admittance valve (21), for air being introduced gas samping pump (22),
Described gas samping pump (22), for introducing gas sensor module (23) by conduit by sample gas;
Described gas sensor module (23), is wherein provided with atmospheric environmental parameters sensor;
Vent valve (24), carries out emptying for the gas in described gas sensor module (23) is imported off-gas pump (25);
Described off-gas pump (25);
The flowmeter (26) installed between described vent valve (24) and described off-gas pump (25), for detecting gas flow.
8. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 7, wherein, described atmospheric environmental parameters sensor comprise following among one or more: ozone sensor, SO 2 sensor, nitrogen dioxide sensor, nitric oxide sensor, PM10 sensor, PM2.5 sensor, carbon dioxide sensor, methane transducer, moisture transducer.
9. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 7, wherein, described data acquisition and control module (1) comprising:
ARM-Linux core board (11), for running the control program of atmospheric environment Real-Time Monitoring;
Control unit of electromagnetic valve (16), for controlling the duty of described gas admittance valve and vent valve;
Storer (12), for providing the storage space run needed for control program;
Serial communication modular (17), for being connected with wireless communication module (3) and locating module (6),
Wherein, described ARM-Linux core board (11) is connected with detection module (2) with control unit of electromagnetic valve (16), storer (12), serial communication modular (17), gas collecting.
10. vehicle mounted portable atmospheric environment real-time monitoring device according to claim 9, wherein, described control unit of electromagnetic valve (16) comprising:
Triode (Q1), the output pulse width modulation port (PWM) of the data acquisition and control module (1) of described ARM-Linux core board (11) is connected to the base stage of triode (Q1), the grounded emitter (GND) of triode (Q1);
Pull-up resistor (R2), it is connected between the collector of triode (Q1) and the power supply (VDS) of the first voltage;
High power intelligent field effect transistor switch pipe (U1), the collector of its input end (IN) connecting triode (Q1), its output terminal connects the control end of gas admittance valve and vent valve, the indirect pull down resistor (R8) on its sheet choosing end (IS) and ground (GND);
Fast quick-recovery switching diode (D1), its negative pole connects the control end of described gas admittance valve and vent valve, plus earth.
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