CN102778537A - System and method for remotely monitoring automobile tail gas - Google Patents
System and method for remotely monitoring automobile tail gas Download PDFInfo
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- CN102778537A CN102778537A CN2012102047785A CN201210204778A CN102778537A CN 102778537 A CN102778537 A CN 102778537A CN 2012102047785 A CN2012102047785 A CN 2012102047785A CN 201210204778 A CN201210204778 A CN 201210204778A CN 102778537 A CN102778537 A CN 102778537A
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Abstract
The invention relates to a system and a method for remotely monitoring automobile tail gas. The system comprises a monitoring main machine, an automobile owner mobile phone, a tail gas detection vehicle-mounted terminal and a global position system (GPS), wherein the tail gas detection vehicle-mounted terminal and the GPS are installed on an automobile. The tail gas detection vehicle-mounted terminal comprises a tail gas sampling mechanism, a tail gas sensing mechanism and tail gas analyzing mechanisms, wherein a gas inlet of the tail gas sampling mechanism is connected with an exhaust pipe, a gas outlet of the tail gas sampling mechanism is connected with an automobile silencer, the tail gas sensing mechanism and the GPS are electrically connected with each tail gas analyzing mechanism, the tail gas analyzing mechanisms are connected with the monitoring machine through a wireless network, and the monitoring main machine is connected with the automobile owner mobile phone through the wireless network. The tail gas detection vehicle-mounted terminal sends tail gas detection data and automobile position data to the far-end monitoring main machine which screens out the automobile exceeding emission level of tail gas and frequently running in urban areas and sends warning and rectification information to the automobile owner mobile phone of the automobile exceeding emission level of tail gas. By means of the system and the method for remotely monitoring the automobile tail gas, real-time monitoring and warning on the automobile tail gas are performed, control to automobile tail gas emission is strengthened, and air quality is ensured to be improved.
Description
Technical field
The present invention relates to vehicle exhaust monitoring field, relate in particular to a kind of vehicle exhaust remote supervision system and monitoring method.
Background technology
Mainly comprise CO2, CO and CHization thing and NOization thing in the tail gas of motor vehicle emission; Along with increasing rapidly of motor vehicles; Being discharged into airborne CO2, CO and CHization thing and NOization thing can get more and more; Negative effects such as the greenhouse effect that cause are also serious day by day, and serious threat is to human existence.Generally be that the index of correlation to automobile is controlled when automobile dispatches from the factory at present; Mode with annual test after automobile is sold detects the motor vehicle exhaust emission level; Mostly adopt idling method and simple and easy operating condition method simulation actual travel state, pollution level that can't its tail gas of real-time judge causes in the automobile normal running state.Exactly the air on the road is detected in addition, in order to content and the concentration of judging numerous motor vehicle emission tail gas.Also there is not at present a kind of complete monitoring system; Can't be in vehicle traveling process each automobile institute discharge tail gas of real-time remote monitoring; The vehicle that can't find exhaust emissions to exceed standard in time; Also can't in time warn and dispose the vehicle that exceeds standard, therefore bigger to the control difficulty of motor vehicle exhaust emission, be unfavorable for the improvement of air quality.And traditional gas analyzer can only be measured certain type of content of emission gases; Synchronization can only obtain several kinds of limited data; Can't obtain the multiple gases content concn of vehicle exhaust and the multiple parameter of emission gases simultaneously; Be difficult to motor vehicle emission tail gas is made perfect judge comprehensively, detection efficiency is low, uses inconvenient.In addition, owing to jolting certainly in the vehicle traveling process and vibrating, in order to improve accuracy of detection and to guarantee reliability, damping and shock-absorbing are problems must facing.
Summary of the invention
The present invention mainly solves does not also have a kind of complete vehicle exhaust monitoring system at present; Can't be in vehicle traveling process each automobile institute discharge tail gas of real-time remote monitoring; The vehicle that can't find exhaust emissions to exceed standard in time; Also can't in time warn and dispose the vehicle that exceeds standard, bigger to the control difficulty of motor vehicle exhaust emission, be unfavorable for the technical matters of the improvement of air quality; A kind of vehicle exhaust remote supervision system and monitoring method are provided; It can be in vehicle traveling process each automobile institute discharge tail gas of real-time remote monitoring; Filter out the vehicle that exhaust emissions exceeds standard and find its position; And the vehicle that exceeds standard in time warned and dispose, thereby strengthen control to motor vehicle exhaust emission, guarantee to improve air quality.
The present invention solves original gas analysis equipment simultaneously and can only measure certain type of content in the gas; Synchronization can only obtain several kinds of limited data; Can't obtain the multiple gases content concn of vehicle exhaust and the multiple parameter of emission gases simultaneously; Be difficult to motor vehicle emission tail gas is made perfect judge comprehensively, detection efficiency is low, uses inconvenient technical matters; A kind of vehicle exhaust remote supervision system is provided; It can detect the multiple gases content of vehicle exhaust at synchronization, and can detect other parameter of discharging tail gas simultaneously, thereby can make perfect judge comprehensively to motor vehicle emission tail gas; Detection efficiency is high, and is easy to use.
Another purpose of the present invention provides a kind of vehicle exhaust remote supervision system; It possesses good damping, anti-vibration structure; Sensor and used circuit there is good shock-absorbing protecting effect; Guarantee in vehicle traveling process, still to have the accuracy of good functional reliability and the data that record, make the vehicle exhaust monitoring more accurate.
Above-mentioned technical matters of the present invention mainly is able to solve through following technical proposals: vehicle exhaust remote supervision system of the present invention; Comprise tail gas inspection vehicle mounted terminal, GPS positioning system, monitoring host computer and car owner's mobile phone; Tail gas inspection vehicle mounted terminal and GPS positioning system are installed on the automobile; Monitoring host computer is installed in the administrative authority of monitoring vehicle exhaust, and described tail gas inspection vehicle mounted terminal comprises exhaust sampling mechanism, tail gas sensing mechanism and tails assay mechanism, and the air intake opening of exhaust sampling mechanism links to each other with the gas outlet of automobile; The gas outlet of exhaust sampling mechanism links to each other with the air intake opening of described tail gas sensing mechanism; The gas outlet of tail gas sensing mechanism links to each other with sound suppressor on the automobile, and the transducing signal output terminal of tail gas sensing mechanism links to each other with the signal input part of described tails assay mechanism, and the GPS positioning system links to each other with tails assay mechanism; Tails assay mechanism links to each other through wireless network with described monitoring host computer, and monitoring host computer links to each other through wireless network with car owner's mobile phone.Tail gas inspection vehicle mounted terminal is used for that automobile is discharged tail gas concentration and detects in real time.Gather the real-time discharge tail gas of automobile and flow to the tail gas sensing mechanism by exhaust sampling mechanism; Detect the concentration value of related compound and flow to tails assay mechanism by the tail gas sensing mechanism; Tails assay mechanism is through handling, analyze and calculate, and tail gas is detected automobile positioning data that data and GPS positioning system obtain sends to far-end through wireless network monitoring host computer.Monitoring host computer comprises server and WEB application program; Be responsible for carrying out telecommunication with tail gas inspection vehicle mounted terminal; Receive, handle and store a large amount of tail gas that come from a plurality of tail gas inspection vehicle mounted terminals and detect data and locator data; Filter out the vehicle that emission level exceeds standard and (program setting can be passed through in the zone) goes through the city of being everlasting; And this The selection result and warning, rectification notice sent to pairing car owner's mobile phone through wireless network with short message mode or lettergram mode, and supervise the car owner that vehicle is maintained, reduce exhaust emissions.
As preferably; Described exhaust sampling mechanism comprises oil and water filters, dust filter unit and the vacuum pump that links to each other successively; The air intake opening of oil and water filters links to each other with the gas outlet of automobile; The gas outlet of vacuum pump links to each other with the air intake opening of described tail gas sensing mechanism, and the operation control end of vacuum pump links to each other with described tails assay mechanism.The long-range transmitting supervisory of monitoring host computer instructs to tails assay mechanism; Tails assay mechanism sends control signal and starts the vacuum pump operation; Extract tail gas from automobile exhaust pipe; The tail gas that extracts filters out unburned fuel and dust in the tail gas through oil and water filters, dust filter unit successively, sends into the tail gas sensing mechanism and detects.
As preferably; Described tails assay mechanism comprises micro-control unit and the push-button unit, display unit, driver element and the GPRS wireless transmit/receive units that link to each other with micro-control unit; The transducing signal output terminal of the signal input part of micro-control unit and described tail gas sensing mechanism links to each other; The output terminal of driver element links to each other with the control end of described exhaust sampling mechanism; Described GPS positioning system links to each other with described micro-control unit, and the GPRS wireless transmit/receive units links to each other with described monitoring host computer is wireless.Tails assay mechanism realizes radio communication through GPRS wireless transmit/receive units and monitoring host computer; Micro-control unit receives the numerical value that each sensor is sent here; And going out the numerical value of automobile transient state exhaust contaminant according to each item numerical evaluation, computing obtains the mass discharge value, and the long-range monitoring host computer that sends to.Push-button unit and display unit are used for man-machine interaction, set duty and correlation parameter through push-button unit, show the concentration value and the vehicle location information of related compound in the tail gas in real time through display unit.Micro-control unit sends control signal and gives driver element, is controlled the operation of the vacuum pump in the exhaust sampling mechanism again by driver element.
As preferably; The housing that gas channel is arranged in described tail gas sensing mechanism comprises; The inlet end of gas channel is located at a side of housing; The opposite side of housing is located in the outlet side of gas channel; In the gas channel from the inlet end to the outlet side successively the compartment of terrain be provided with oxycarbide and hydrocarbons sensor, NOx sensor and oxygen sensor, the transducing signal output terminal of oxycarbide and hydrocarbons sensor, NOx sensor and oxygen sensor links to each other with the signal input part of described tails assay mechanism respectively.The tail gas that is extracted by vacuum pump gets into gas channel; Detect the concentration value of NOx by NOx sensor; Oxygen sensor is measured oxygen density value, measures the concentration value of CO2, CO and CHization thing by oxycarbide and hydrocarbons sensor, and above-mentioned data are all given tails assay mechanism.Synchronization can obtain the multiple gases content value of vehicle exhaust, thereby can make perfect judge comprehensively to motor vehicle emission tail gas, and detection efficiency is high, and is easy to use.
As preferably; Described oxycarbide and hydrocarbons sensor comprise infrared light supply, infrared radiation source modulating unit, catoptron, thermopile detector; Be provided with a path channels vertical in the described housing with described gas channel; Described infrared light supply and thermopile detector are located at an end of path channels; Two mutually the catoptrons of symmetry be located at the other end of path channels, the infrared radiation source modulating unit is electrically connected with infrared light supply, the length of described path channels is 1.5～3.5 times of diameter of gas channel; The diameter of path channels is less than or equal to the radius of gas channel, and the transducing signal output terminal of described thermopile detector links to each other with the signal input part of described tails assay mechanism.Gas channel is the consistent all the time put-through channel of diameter, is convenient to air-flow and passes through smoothly.Sufficiently long path channels prolongs the distance that light passes through, and also reduces and disturbs, and improves the detection accuracy of oxycarbide and hydrocarbons.Oxycarbide and hydrocarbons sensor are to utilize not beam split infrared absorption method to survey the device of CO2, CO and CHization substrate concentration value in the tail gas.The infrared radiation source modulating unit sends modulating pulse; The control infrared radiation source sends interrupted infrared light; Infrared light sweep gas circulation road shines on the catoptron of the other end that is positioned at path channels, shines on the thermopile detector behind two secondary reflections through two catoptrons again.In this illumination path; The infrared light of some frequency range is by the CO2 in the gas channel, CO and CH gas absorption; Light intensity decreasing; Thermopile detector detects the light intensity that these frequency ranges weaken, and the infrared acquisition circuit calculates above-mentioned three kinds of gases concentration value separately according to the Lambert-Beer absorption law, sends tails assay mechanism at last to.
As preferably; Be provided with gas pressure sensor, gas meter and temperature sensor in the described gas channel; Gas pressure sensor is between described oxycarbide and hydrocarbons sensor and NOx sensor; Gas meter and temperature sensor are between described NOx sensor and oxygen sensor, and gas pressure sensor, gas meter and temperature sensor are electrically connected with described tails assay mechanism respectively; Described gas meter comprises eddy current generation body and piezoelectric sensor; Piezoelectric sensor is located on the conduit wall of gas channel; Eddy current generation body penetrates in the housing from described outside, and it is interior and contiguous with piezoelectric sensor that the termination of eddy current generation body is exposed to gas channel.Detect the gas pressure intensity in the gas channel by gas pressure sensor, gas meter detects the gas stream value.Eddy current generation body is used in dilution air flow, produce eddy current, and these eddy current are discharged in the air-flow according to certain frequency.Piezoelectric sensor is divided into the transmission piezoelectric unit again and receives piezoelectric unit two parts, is used for measuring the frequency from the eddy current of eddy current generation body release.Send piezoelectric unit and send ultrasound wave to receiving piezoelectric unit according to certain frequency; The eddy current that ultrasound wave and eddy current generation body are produced interferes; Receive piezoelectric unit and just can calculate interference frequencies according to the ultrasonic signal of receiving; Calculate the release frequency of eddy current then by this frequency values, send to tails assay mechanism.The release frequency of eddy current is that the volumetric flow rate with gas is directly proportional, and in view of the above, is calculated the flow value of air-flow by tails assay mechanism.
As preferably; Described vehicle exhaust remote supervision system comprises a casing, and the bottom surface in the casing is provided with a hollow chassis, is coated with a centre on the hollow chassis and is the plane, is the dish-like lid of bending arcuation under all around; Be provided with one deck rubber layer between hollow chassis and the dish-like lid; Be provided with first spring more than four around the described dish-like lid, an end of first spring and the edge of dish-like lid link to each other, and the other end of first spring links to each other with tank floor; Described first spring is inclined to set; Described dish-like lid is provided with a double-layer scaffold, and described tails assay mechanism and GPS positioning system are located at the upper strata of double-layer scaffold, and described tail gas sensing mechanism is located at the lower floor of double-layer scaffold.The hollow chassis that is installed together from top to bottom, rubber layer and dish-like lid are used for reducing the vibration of the vertical direction that running car takes place, and are connected the vibration that a plurality of first springs between tank floor and the dish-like lid are used for reducing the horizontal direction that running car takes place.Thereby good shock-absorbing protecting effect is played by tail gas sensing mechanism and tails assay mechanism to being installed on the double-layer scaffold; Avoid electronic devices and components to damage because of mechanical fatigue; Avoid the switch or the contact of electrical equipment to produce misoperation, avoid in the circuit adjustable part to produce mechanical shift or make fastening part loosening, thereby destroy its operate as normal because of shake; Guarantee in vehicle traveling process, still to have the accuracy of good functional reliability and the data that record, make the vehicle exhaust monitoring more accurate.
As preferably; Described double-layer scaffold is provided with four legs, and described dish-like lid is provided with four open columns, and four legs respectively are inserted in four open columns; The inwall of described open column is provided with one and encloses the radially boss of convex; Described leg is provided with a rubber sphere, and rubber sphere is positioned at the below of boss, is set with second spring on the leg of rubber sphere below.Second spring plays buffer action to the vibration of vertical direction.The side of boss is curved, and when strong vibration caused second spring breakage, boss blocked rubber sphere, make leg can not break away from open column, and rubber sphere also plays the buffer action of vibration.
As preferably, the front panel of described casing and rear panel are equipped with a plurality of louvres, and the diameter of louvre is less than the diameter of louvre on the rear panel on the front panel.Because vehicle traveling process medium velocity ratio comparatively fast, the air-flow that gets into casing just compares suddenly, and being provided with of above-mentioned louvre can make the air-flow of the casing of flowing through relatively stable, makes the suffered impulsive force of interior each parts of casing less, also improves radiating effect simultaneously.
The monitoring method of vehicle exhaust remote supervision system of the present invention does; Gather the real-time discharge tail gas of automobile and flow to described tail gas sensing mechanism by described exhaust sampling mechanism; Detect the concentration value of the respective compound that administrative authority need know and flow to described tails assay mechanism by the tail gas sensing mechanism; Tails assay mechanism is through handling, analyze and calculating; Tail gas is detected data and automobile positioning data send to far-end through wireless network monitoring host computer; Described monitoring host computer sends instruction and receives, handles and store the mass data that comes from a plurality of tail gas inspection vehicle mounted terminals to a plurality of tail gas inspection vehicle mounted terminals through wireless network; Filter out that the exhaust emissions level exceeds standard and through the city traveling automobile of being everlasting by monitoring host computer, monitoring host computer sends warning through wireless network and rectification information is given the car owner mobile phone corresponding with these automobiles then.Tail gas that automobile discharges is monitored and real-time alerting in real time, help strengthening control, guarantee to improve air quality motor vehicle exhaust emission.
The invention has the beneficial effects as follows: can be in vehicle traveling process each automobile institute discharge tail gas of real-time remote monitoring; Filter out the vehicle that exhaust emissions exceeds standard and find its position; And the vehicle that exceeds standard in time warned and dispose; Thereby strengthen control, guarantee to improve air quality, have advantages such as automaticity height, high, the continuous operation of monitoring efficient motor vehicle exhaust emission.And can detect at the multiple gases content of synchronization to vehicle exhaust, and can detect other parameter of discharging tail gas simultaneously, thus can make perfect judge comprehensively to motor vehicle emission tail gas, detection efficiency is high.Also possess good damping, anti-vibration structure; Sensor and used circuit there is good shock-absorbing protecting effect; Avoid electronic devices and components to damage, avoid the switch of electrical equipment or contact to produce misoperation, avoid in the circuit adjustable part to produce mechanical shift or make fastening part loosening because of shake because of mechanical fatigue; Guarantee in vehicle traveling process, still to have good functional reliability, make the vehicle exhaust monitoring more accurate.
Description of drawings
Fig. 1 is a kind of system syndeton block diagram of vehicle exhaust remote supervision system of the present invention.
Fig. 2 is a kind of syndeton block diagram of exhaust sampling mechanism and tail gas sensing mechanism among the present invention.
Fig. 3 is a kind of circuit theory syndeton block diagram of tail gas inspection vehicle mounted terminal among the present invention.
Fig. 4 is a kind of structural representation of tail gas sensing mechanism among the present invention.
Fig. 5 is a kind of structural representation of double-layer scaffold among the present invention.
Fig. 6 is a kind of sectional structure synoptic diagram of the interior double-layer scaffold mounting structure of casing among the present invention.
Fig. 7 is a kind of sectional structure synoptic diagram of the mounting structure of the leg of double-layer scaffold among the present invention.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment: the vehicle exhaust remote supervision system of present embodiment; As shown in Figure 1; Comprise tail gas inspection vehicle mounted terminal 1, GPS positioning system 2, monitoring host computer 3 and car owner's mobile phone 4, tail gas inspection vehicle mounted terminal 1 is installed on the automobile with GPS positioning system 2, respectively installs one on each automobile; Monitoring host computer 3 is installed in the administrative authority of monitoring vehicle exhaust, and a monitoring host computer can communicate with a plurality of tail gas inspection vehicle mounted terminals, a plurality of car owner's mobile phone.GPS positioning system 2 links to each other with tail gas inspection vehicle mounted terminal 1, and tail gas inspection vehicle mounted terminal 1 and monitoring host computer 3 link to each other through wireless network, and monitoring host computer 3 and car owner's mobile phone 4 link to each other through wireless network.As shown in Figure 2; Tail gas inspection vehicle mounted terminal 1 comprises exhaust sampling mechanism 5, tail gas sensing mechanism 6 and tails assay mechanism 7; Exhaust sampling mechanism 5 comprises oil and water filters 51, dust filter unit 52 and the vacuum pump 53 that links to each other successively; The air intake opening of oil and water filters 51 links to each other with the gas outlet of automobile, and the gas outlet of vacuum pump 53 links to each other with the air intake opening of tail gas sensing mechanism 6, and the gas outlet of tail gas sensing mechanism 6 links to each other with sound suppressor on being installed on automobile.Like Fig. 5, Fig. 6 and shown in Figure 7; A casing 8 is installed on each automobile, on the bottom surface in the casing 8 a metal hollow chassis 9 is installed, be coated with a centre on the hollow chassis 9 and be the plane, be the dish-like lid of bending arcuation under 10 all around; Be bonded with one deck rubber layer 11 between hollow chassis 9 and the dish-like lid 10; Have an end of eight first spring, 12, the first springs 12 that are uniformly distributed with and the edge of dish-like lid 10 to link to each other around the dish-like lid 10, the other end of first spring 12 links to each other with casing 8 bottom surfaces; First spring 12 is inclined to set, and its upper end is inner, the lower end is outer.Four legs 14 that are connected with 15, one double-layer scaffolds 13 of four open columns on the dish-like lid 10 respectively are inserted in four open columns 15.Have on the inwall of open column 15 and enclose the radially metal boss 16 of convex, the side of boss is curved, is socketed with a rubber sphere 17 on the leg 14, and rubber sphere 17 is positioned at the below of boss 16, is set with second spring 18 on the leg 14 of rubber sphere 17 belows.Double-layer scaffold comprises top plate and lower plywood, and top plate and lower plywood connect and compose a support body through four legs, and tails assay mechanism 7 and GPS positioning system 2 are installed on the top plate, and tail gas sensing mechanism 6 is installed on the lower plywood.The front panel 19 of casing 8 and rear panel 20 all have a plurality of louvres 21; The diameter of louvre 21 is less than the diameter of louvre 21 on the rear panel 20 on the front panel 19; Louvre on the front panel relatively is gathered in the center of front panel, and four angles that the louvre on the rear panel relatively relies on rear panel distribute.
As shown in Figure 4; The housing 61 that gas channel 62 is arranged in tail gas sensing mechanism 6 comprises; The inlet end 621 of gas channel 62 is positioned at a side of housing 61; The outlet side 622 of gas channel 62 is positioned at the opposite side of housing 61, in the gas channel 62 from inlet end 621 to the outlet side 622 successively the compartment of terrain oxycarbide and hydrocarbons sensor, gas pressure sensor 63, NOx sensor 64, gas meter 65, temperature sensor 612 and oxygen sensor 66 are installed.Wherein, Oxycarbide and hydrocarbons sensor comprise infrared light supply 68, infrared radiation source modulating unit 611, catoptron 610, thermopile detector 69; A path channels 67 vertical with gas channel 62 is arranged in the housing 61; Infrared light supply 68 and thermopile detector 69 are installed on an end of path channels 67, and two symmetrical mutually catoptrons 610 are installed on the other end of path channels 67, and infrared radiation source modulating unit 611 is electrically connected with infrared light supply 68; The length of path channels 67 is 1.5～3.5 times of diameter of gas channel 62, and the diameter of path channels 67 is less than the radius of gas channel 62.Gas meter 65 comprises eddy current generation body 651 and piezoelectric sensor 652; Piezoelectric sensor 652 is installed on the conduit wall of gas channel 62; Eddy current generation body 651 penetrates in the housing 61 from housing 61 outsides, and it is interior and contiguous with piezoelectric sensor 652 that the termination of eddy current generation body 651 is exposed to gas channel 62.
As shown in Figure 3, tails assay mechanism 7 comprises micro-control unit 71 and the push-button unit 72, display unit 73, driver element 74 and the GPRS wireless transmit/receive units 75 that link to each other with micro-control unit 71.The transducing signal output terminal of the thermopile detector 69 in the tail gas sensing mechanism 6, gas pressure sensor 63, NOx sensor 64, gas meter 65, temperature sensor 612 and oxygen sensor 66 links to each other with the signal input part of micro-control unit 71 respectively; The operation control end of the vacuum pump in the output terminal of driver element 74 and the exhaust sampling mechanism 5 links to each other; GPS positioning system 2 links to each other with micro-control unit 71, and GPRS wireless transmit/receive units 75 carries out radio communication with monitoring host computer 3.
The monitoring method of above-mentioned vehicle exhaust remote supervision system is: monitoring host computer 3 instructs to tail gas inspection vehicle mounted terminal 1 through the long-range transmitting supervisory of wireless network; GPRS wireless transmit/receive units 75 in the tail gas inspection vehicle mounted terminal flows to micro-control unit 71 after receiving signal; Send control signal by micro-control unit and give driver element 74; Start vacuum pump 53 operations by driver element again; Through vacuum pump from just extracting tail gas at the gas outlet of traveling automobile; The tail gas that extracts filters out unburned fuel and dust in the tail gas through oil and water filters 51, dust filter unit 52 successively; The gas channel 62 of sending into the tail gas sensing mechanism detects; Detected the concentration value of the respective compound that administrative authority need know and flowed to tails assay mechanism 7 by tail gas sensing mechanism 6, the automobile positioning data that obtains through GPS positioning system 2 also flows to tails assay mechanism, by the micro-control unit in the tails assay mechanism 7 through handling, analyze and calculating; Tail gas is detected data and automobile positioning data send to far-end through the GPRS wireless transmit/receive units monitoring host computer 3; Monitoring host computer 3 receives, handles and store the mass data that comes from a plurality of tail gas inspection vehicle mounted terminals 1, is filtered out by monitoring host computer 3 that the exhaust emissions level exceeds standard and through the city traveling automobile of being everlasting, monitoring host computer 3 sends car owner's mobile phone 4 that The selection result, warning and rectification notice are given the automobile that exceeds standard with the mode of note or mail through wireless network then.Supervision department can also find the automobile that exceeds standard fast through the GPS locating information, so that in time make handled.
The present invention can be in vehicle traveling process each automobile institute discharge tail gas of real-time remote monitoring; Filter out the vehicle that exhaust emissions exceeds standard and find its position; And the vehicle that exceeds standard in time warned and dispose; Thereby strengthen control to motor vehicle exhaust emission; Reach effective reduction exhaust emissions pollution, improve the purpose of city air quality, have the automaticity height, monitor efficient height, advantages such as operation continuously in real time, carrying out work such as vehicle exhaust remote monitoring and vehicle management for environmental administration provides a kind of new means.
Claims (10)
1. vehicle exhaust remote supervision system; It is characterized in that comprising tail gas inspection vehicle mounted terminal (1), GPS positioning system (2), monitoring host computer (3) and car owner's mobile phone (4); Tail gas inspection vehicle mounted terminal (1) and GPS positioning system (2) are installed on the automobile; Monitoring host computer (3) is installed in the administrative authority of monitoring vehicle exhaust; Described tail gas inspection vehicle mounted terminal (1) comprises exhaust sampling mechanism (5), tail gas sensing mechanism (6) and tails assay mechanism (7); The air intake opening of exhaust sampling mechanism (5) and the gas outlet of automobile link to each other, and the gas outlet of exhaust sampling mechanism (5) links to each other with the air intake opening of described tail gas sensing mechanism (6), and the gas outlet of tail gas sensing mechanism (6) links to each other with the sound suppressor on being installed on automobile; The transducing signal output terminal of tail gas sensing mechanism (6) links to each other with the signal input part of described tails assay mechanism (7); GPS positioning system (2) links to each other with tails assay mechanism (7), and tails assay mechanism (7) links to each other through wireless network with described monitoring host computer (3), and monitoring host computer (3) links to each other through wireless network with car owner's mobile phone (4).
2. vehicle exhaust remote supervision system according to claim 1; It is characterized in that described exhaust sampling mechanism (5) comprises oil and water filters (51), dust filter unit (52) and the vacuum pump (53) that links to each other successively; The air intake opening of oil and water filters (51) and the gas outlet of automobile link to each other; The gas outlet of vacuum pump (53) links to each other with the air intake opening of described tail gas sensing mechanism (6), and the operation control end of vacuum pump (53) links to each other with described tails assay mechanism (7).
3. vehicle exhaust remote supervision system according to claim 1; It is characterized in that described tails assay mechanism (7) comprises micro-control unit (71) and the push-button unit (72), display unit (73), driver element (74) and the GPRS wireless transmit/receive units (75) that link to each other with micro-control unit (71); The signal input part of micro-control unit (71) links to each other with the transducing signal output terminal of described tail gas sensing mechanism (6); The output terminal of driver element (74) links to each other with the control end of described exhaust sampling mechanism (5); Described GPS positioning system (2) links to each other with described micro-control unit (71), GPRS wireless transmit/receive units (75) and wireless linking to each other of described monitoring host computer (3).
4. vehicle exhaust remote supervision system according to claim 1; It is characterized in that described tail gas sensing mechanism (6) has the housing (61) of gas channel (62) in comprising; The inlet end (621) of gas channel (62) is located at a side of housing (61); The opposite side of housing (61) is located in the outlet side (622) of gas channel (62); (622) are provided with oxycarbide and hydrocarbons sensor, NOx sensor (64) and oxygen sensor (66) in the compartment of terrain successively to the outlet side from inlet end (621) in the gas channel (62), and the transducing signal output terminal of oxycarbide and hydrocarbons sensor, NOx sensor (64) and oxygen sensor (66) links to each other with the signal input part of described tails assay mechanism (7) respectively.
5. vehicle exhaust remote supervision system according to claim 4; It is characterized in that described oxycarbide and hydrocarbons sensor comprise infrared light supply (68), infrared radiation source modulating unit (611), catoptron (610), thermopile detector (69); Be provided with a path channels (67) vertical in the described housing (61) with described gas channel (62); Described infrared light supply (68) and thermopile detector (69) are located at an end of path channels (67); Two symmetrical mutually catoptrons (610) are located at the other end of path channels (67); Infrared radiation source modulating unit (611) is electrically connected with infrared light supply (68); The length of described path channels (67) is 1.5～3.5 times of diameter of gas channel (62), and the diameter of path channels (67) is less than or equal to the radius of gas channel (62), and the transducing signal output terminal of described thermopile detector (69) links to each other with the signal input part of described tails assay mechanism (7).
6. according to claim 4 or 5 described vehicle exhaust remote supervision systems; It is characterized in that being provided with in the described gas channel (62) gas pressure sensor (63), gas meter (65) and temperature sensor (612); Gas pressure sensor (63) is positioned between described oxycarbide and hydrocarbons sensor and the NOx sensor (64); Gas meter (65) and temperature sensor (612) are positioned between described NOx sensor (64) and the oxygen sensor (66), and gas pressure sensor (63), gas meter (65) and temperature sensor (612) are electrically connected with described tails assay mechanism (7) respectively; Described gas meter (65) comprises eddy current generation body (651) and piezoelectric sensor (652); Piezoelectric sensor (652) is located on the conduit wall of gas channel (62); Eddy current generation body (651) penetrates in the housing (61) from described housing (61) outside, and it is interior and contiguous with piezoelectric sensor (652) that the termination of eddy current generation body (651) is exposed to gas channel (62).
7. according to claim 1 or 2 or 3 or 4 described vehicle exhaust remote supervision systems; It is characterized in that comprising a casing (8); Bottom surface in the casing (8) is provided with a hollow chassis (9); Be coated with a centre on the hollow chassis (9) and be the plane, be dish-like lid (10) curved under the arcuation all around, be provided with one deck rubber layer (11) between hollow chassis (9) and the dish-like lid (10), described dish-like lid (10) be provided with first spring (12) more than four all around; One end of first spring (12) links to each other with the edge of dish-like lid (10); The other end of first spring (12) links to each other with casing (8) bottom surface, and described first spring (12) is inclined to set, and described dish-like lid (10) is provided with a double-layer scaffold (13); Described tails assay mechanism (7) and GPS positioning system (2) are located at the upper strata of double-layer scaffold (13), and described tail gas sensing mechanism (6) is located at the lower floor of double-layer scaffold (13).
8. vehicle exhaust remote supervision system according to claim 7; It is characterized in that described double-layer scaffold (13) is provided with four legs (14); Described dish-like lid (10) is provided with four open columns (15); Four legs (14) respectively are inserted in four open columns (15), and the inwall of described open column (15) is provided with one and encloses the radially boss of convex (16), and described leg (14) is provided with a rubber sphere (17); Rubber sphere (17) is positioned at the below of boss (16), is set with second spring (18) on the leg (14) of rubber sphere (17) below.
9. vehicle exhaust remote supervision system according to claim 7; The front panel (19) and the rear panel (20) that it is characterized in that described casing (8) are equipped with a plurality of louvres (21), and the diameter of the last louvre (21) of front panel (19) is gone up the diameter of louvre (21) less than rear panel (20).
10. one kind like claim 1 or 2 or the monitoring method of 3 or 4 described vehicle exhaust remote supervision systems; It is characterized in that gathering the real-time discharge tail gas of automobile and flowing to described tail gas sensing mechanism (6) by described exhaust sampling mechanism (5); Detect the concentration value of the respective compound that administrative authority need know and flow to described tails assay mechanism (7) by tail gas sensing mechanism (6); Tails assay mechanism (7) is through handling, analyze and calculating; Tail gas is detected data reach the automobile positioning data that is obtained by described GPS positioning system (2) sends to far-end through wireless network monitoring host computer (3); Described monitoring host computer (3) comes from the mass data of a plurality of tail gas inspection vehicle mounted terminals (1) to a plurality of tail gas inspection vehicle mounted terminals (1) transmission instruction and reception, processing and storage through wireless network; Filter out that the exhaust emissions level exceeds standard and through the city traveling automobile of being everlasting by monitoring host computer (3), monitoring host computer (3) sends warning through wireless network and rectification information is given the car owner mobile phone (4) corresponding with these automobiles then.
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| CN201210204778.5A CN102778537B (en) | 2012-06-20 | 2012-06-20 | System and method for remotely monitoring automobile tail gas |
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