SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome among the prior art the problem of utilizing the emission of electrochemical principle instrument monitoring quilt survey car, provide a novel monitoring devices of variable wavelength laser telemetering measurement car emission condition.
In order to realize the purpose, the technical scheme of the utility model is as follows: a monitoring device for remote measuring the emission of a vehicle by a variable wavelength laser is used for monitoring the emission of the vehicle to be measured, which comprises,
the tested automobile driving channel is provided with a first side and a second side which are oppositely arranged; and the number of the first and second groups,
the laser monitoring device at least comprises one laser monitoring unit of the following components: a first ultraviolet laser monitoring unit for sensing the emission of CO gas in the emission, a second ultraviolet laser monitoring unit for sensing the emission of CO gas in the emission2A second ultraviolet laser monitoring unit for monitoring the gas discharge condition, a first infrared laser monitoring unit for sensing the gas discharge condition of HC in the gas discharge, and a second infrared laser monitoring unit for sensing the nitrogen oxide NO in the gas dischargeXThe system comprises a second infrared laser monitoring unit for monitoring the discharge condition of gas, a first green laser monitoring unit for sensing the discharge condition of PN particles in the discharge, and a second green laser monitoring unit for sensing the discharge condition of PM particles in the discharge;
wherein,
the first ultraviolet laser monitoring unit is provided with a first ultraviolet laser transmitting receiver positioned on a first side of the detected automobile running channel and a first ultraviolet laser reflector positioned on a second side of the detected automobile running channel and opposite to the first ultraviolet laser transmitting receiver;
the second ultraviolet laser monitoring unit is provided with a second ultraviolet laser transmitter-receiver arranged on the first side of the detected automobile running channel and a second ultraviolet laser reflector arranged on the second side of the detected automobile running channel and opposite to the second ultraviolet laser transmitter-receiver;
the first infrared laser monitoring unit is provided with a first infrared laser transmitting receiver positioned on a first side of the detected automobile running channel and a first infrared laser reflector positioned on a second side of the detected automobile running channel and opposite to the first infrared laser transmitting receiver;
the second infrared laser monitoring unit is provided with a second infrared laser transmitting receiver positioned on the first side of the detected automobile running channel and a second infrared laser reflector positioned on the second side of the detected automobile running channel and opposite to the second infrared laser transmitting receiver;
the first green laser monitoring unit is provided with a first green laser emission receiver positioned on a first side of the detected automobile running channel and a first green laser reflector positioned on a second side of the detected automobile running channel and opposite to the first green laser emission receiver;
the second green laser monitoring unit is provided with a second green laser emitting receiver positioned on the first side of the detected automobile running channel and a second green laser reflecting mirror positioned on the second side of the detected automobile running channel and opposite to the second green laser emitting receiver.
As a preferred scheme of the monitoring device for telemetering the automobile emission condition by the variable wavelength laser, the wavelength of the first ultraviolet laser emitted by the first ultraviolet laser emitting receiver is controlled within 300-350 mm; the wavelength of the second ultraviolet laser emitted by the second ultraviolet laser emitting receiver is controlled within 320-370 mm; the wavelength of the first infrared laser emitted by the first infrared laser emitting receiver is controlled within 1170-1760 mm; the wavelength of the second infrared laser emitted by the second infrared laser emitting receiver is controlled within 1750-; the wavelength of the first green laser emitted by the first green laser emitting receiver is controlled within 500-600 mm; the wavelength of the second green laser emitted by the second green laser emitting receiver is controlled within 450-550 mm.
As a preferable proposal of the monitoring device for the wavelength-variable laser telemetering of the automobile emission condition, the device also comprises,
and the environment sensor is used for sensing the environment information of the running channel of the tested automobile.
The environment sensor is provided with a wind speed sensor which is positioned on the first side or the second side of the automobile driving channel to be detected, and the wind speed sensor is used for sensing the ambient wind speed of the automobile driving channel to be detected.
The environment sensor is provided with a temperature sensor which is arranged on the first side or the second side of the automobile driving channel to be detected, and the temperature sensor is used for sensing the environment temperature of the automobile driving channel to be detected.
The environment sensor is provided with a humidity sensor which is arranged on the first side or the second side of the automobile driving channel to be detected, and the humidity sensor is used for sensing the environment humidity of the automobile driving channel to be detected.
As a preferable proposal of the monitoring device for the wavelength-variable laser telemetering of the automobile emission condition, the device further comprises,
the vehicle speed sensor is arranged on the first side or the second side of the running channel of the tested vehicle and used for sensing the vehicle speed condition of the tested vehicle.
As a preferable proposal of the monitoring device for the wavelength-variable laser telemetering of the automobile emission condition, the device further comprises,
the camera is positioned on the first side or the second side of the running channel of the tested automobile and used for acquiring the vehicle identity information of the tested automobile.
Compared with the prior art, the utility model has the advantages that at least: 1. the monitoring precision is high, and is improved by more than 50% compared with the precision of the traditional electrochemical monitoring. 2. The normal running of the tested automobile is not influenced, and the use efficiency of the automobile is improved. 3. The monitoring cost is reduced, and compared with rare metals used for electrochemical monitoring, the price of a diode used by utilizing a laser technology is much lower. 4. Monitoring information is sensed on the network in real time and is provided for an environmental protection door, a technical supervision door, monitoring and traffic management for monitoring and operation. 5. The environment-friendly method for effectively controlling the pollutants discharged by the automobile is environment-friendly, and the intelligent protection of the large data can be realized, so that the method is worthy of comprehensive popularization.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
Referring to fig. 1 and 2, a monitoring device for wavelength-variable laser telemetry of vehicle emissions is shown for monitoring emissions from a vehicle 9 under test. The monitoring device mainly comprises an environment sensor, a vehicle speed sensor 2, a camera 3, a laser monitoring device and the like.
The detected automobile driving channel 1 is provided with a first side and a second side which are oppositely arranged. During monitoring, the automobile 9 to be tested only needs to run from one end of the automobile running channel 1 to the other end, and the automobile can not be stopped in the process. In this embodiment, the detected automobile driving passage 1 is a straight road.
The environment sensor is used for sensing the environment information of the detected automobile running channel 1. In the present embodiment, the environment sensor includes a wind speed sensor 5, a temperature sensor 6, and a humidity sensor 7.
The wind speed sensor 5 is positioned on the second side of the measured automobile running channel 1. The wind speed sensor 5 is used for sensing the ambient wind speed of the detected automobile driving channel 1.
The temperature sensor 6 is arranged on the second side of the detected automobile driving channel 1. The temperature sensor 6 is used for sensing the ambient temperature of the detected automobile driving channel 1.
The humidity sensor 7 is arranged on the second side of the detected automobile driving channel 1. The humidity sensor 7 is used for sensing the ambient humidity of the detected automobile driving channel 1.
The vehicle speed sensor 2 is arranged on the second side of the detected vehicle running channel 1. The speed sensor 2 is used for sensing the speed condition of the tested automobile 9.
The camera 3 is positioned on the first side of the detected automobile driving channel 1. The camera 3 is used for acquiring identity information of the tested automobile 9, such as automobile shape, license plate and the like.
The laser monitoring device mainly comprises a first ultraviolet laser monitoring unit, a second ultraviolet laser monitoring unit, a first infrared laser monitoring unit, a second infrared laser monitoring unit, a first green laser monitoring unit, a second green laser monitoring unit and the like.
The first ultraviolet laser monitoring unit is used for sensing the emission condition of carbon monoxide (CO) gas in the emission. The first ultraviolet laser monitoring unit is provided with a first ultraviolet laser transmitter/receiver 811 positioned on a first side of the detected automobile running channel 1 and a first ultraviolet laser reflector 812 positioned on a second side of the detected automobile running channel 1 and opposite to the first ultraviolet laser transmitter/receiver 811. During operation, the first uv laser transmitter/receiver 811 emits a first uv laser (the wavelength of the first uv laser is a specific variable wavelength that can be absorbed by CO gas, i.e., 300-. The first uv laser reflector 812 is turned back in the first lateral direction, passes through the emission again (at this time, the first uv laser is absorbed by CO gas in the emission for the second time), and finally is emitted to the first uv laser emitter/receiver 811. The first ultraviolet laser transmitter/receiver 811 can collect the first ultraviolet laser light after being absorbed twice.
The second ultraviolet laser monitoring unit is used for sensing carbon dioxide CO in the emission2And (4) gas emission. The second ultraviolet laser monitoring unit is provided with a second ultraviolet laser transmitter-receiver 821 on the first side of the detected automobile running channel 1 and a second ultraviolet laser reflector 822 on the second side of the detected automobile running channel 1 and opposite to the second ultraviolet laser transmitter-receiver 821. In operation, the second uv laser transmitter/receiver 821 emits a second uv laser (the wavelength of the second uv laser is CO) in the second lateral direction2A specific variable wavelength that the gas can absorb, i.e., 320-2The gas absorbs the second uv laser for the first time) to the second uv laser mirror 822. Then, the second UV laser mirror 822 is turned back in the first side direction, and the exhaust gas passes through the exhaust gas (at this time, the discharge gas passes through the discharge port againCO in the emissions2The second uv laser is absorbed by the gas for the second time) and finally, the second uv laser light is emitted to the second uv laser transmitter-receiver 821. The second uv laser beam after being secondarily absorbed can be collected by the second uv laser transmitter-receiver 821.
The first infrared laser monitoring unit is used for sensing the emission condition of Hydrocarbon (HC) gas in the emission. The first infrared laser monitoring unit has a first infrared laser transmitter/receiver 831 located on a first side of the detected automobile running channel 1 and a first infrared laser reflector 832 located on a second side of the detected automobile running channel 1 and opposite to the first infrared laser transmitter/receiver 831. In operation, the first infrared laser transceiver 831 emits a first infrared laser toward the second side direction (the wavelength of the first infrared laser is 1170-1760mm, which is a specific variable wavelength that can be absorbed by HC gas), passes through the emission (at this time, the hydrocarbon HC gas in the emission absorbs the first infrared laser for the first time), and then emits the first infrared laser to the first infrared laser reflector 832. The first infrared laser mirror 832 is turned back in the first side direction, passes through the emission again (at this time, the hydrocarbon HC gas in the emission absorbs the first infrared laser for the second time), and finally is emitted to the first infrared laser transmitter/receiver 831. The first infrared laser beam after being absorbed twice can be collected by the first infrared laser transceiver 831.
The second infrared laser monitoring unit is used for sensing nitric oxide NO in the emissionXAnd (4) gas emission. The second infrared laser monitoring unit has a second infrared laser transmitter-receiver 841 positioned at a first side of the measured automobile running channel 1 and a second infrared laser reflector 842 positioned at a second side of the measured automobile running channel 1 and opposite to the second infrared laser transmitter-receiver 841. In operation, the second infrared laser transmitter-receiver 841 emits a second infrared laser beam (of the second infrared laser beam) in the direction of the second sideWavelength of NOXThe specific wavelength change that the gas can absorb, i.e., 1750-. The second infrared laser mirror 842 returns to the first side direction, passes through the emission again (at this time, the nitrogen oxide NOX gas in the emission absorbs the second infrared laser light for the second time), and finally reaches the second infrared laser transmitter-receiver 841. The second infrared laser beam after being absorbed twice can be collected by the second infrared laser transmitter-receiver 841.
The first green laser monitoring unit is used for sensing the discharge condition of PN particles in the discharge. The first green laser monitoring unit is provided with a first green laser transmitter 851 positioned at the first side of the detected automobile running channel 1 and a first green laser reflector 852 positioned at the second side of the detected automobile running channel 1 and opposite to the first green laser transmitter 851. In operation, the first green laser transmitter 851 emits a first green laser toward the second side direction (the wavelength of the first green laser is a specific variable wavelength that can be absorbed by PN particles, i.e., 500-600 mm), passes through the emission (at this time, the PN particles in the emission absorb the first green laser for the first time), and then emits the first green laser to the first green laser reflector 852. The first green laser mirror 852 is turned back toward the first side direction, passes through the discharge again (at this time, PN particles in the discharge absorb the first green laser light for the second time), and finally reaches the first green laser light emitting receiver 851. The first green laser light after being absorbed twice can be collected by the first green laser light emitting receiver 851.
The second green laser monitoring unit is used for sensing the emission condition of PM particles in the emission. The second green laser monitoring unit is provided with a second green laser emitting receiver 861 which is positioned at the first side of the automobile running channel vehicle 1 to be detected and a second green laser reflecting mirror 862 which is positioned at the second side of the automobile running channel vehicle 1 to be detected and is opposite to the second green laser emitting receiver 861. In operation, the second green laser transmitter/receiver 861 emits a second green laser beam (the wavelength of the second green laser beam is a specific variable wavelength that can be absorbed by PM particles, i.e., 450-. And then the second green laser reflector 862 turns back to the first side direction, passes through the emission again (at this time, the second green laser is absorbed by the PM particles in the emission for the second time), and finally reaches the second green laser transmitter/receiver 861. The second green laser light after being absorbed twice can be collected by the second green laser light emitting receiver 861.
The camera 3, the wind speed sensor 5, the temperature sensor 6, the humidity sensor 7, the vehicle speed sensor 2, the first ultraviolet laser transmitter receiver 811, the second ultraviolet laser transmitter receiver 821, the first infrared laser transmitter receiver 831, the second infrared laser transmitter receiver 841, the first green laser transmitter receiver 851 and the second green laser transmitter receiver 861 are all connected with a computer 4, and the computer 4 is further connected with the internet 43 and a data display screen 42 through a wireless module 41. Therefore, data information acquired by the device can be displayed on a data display screen in real time, and data can be transmitted to an internet big data platform through wireless communication, so that the data can be analyzed and monitored by a user, an environment-friendly management department, a technical supervision department, a quality supervision department and a flexible management department, and the environmental protection comprehensive problem of prevention and control combination of automobile emission is fundamentally solved.
The use method of the monitoring device is as follows: the method sequentially comprises the following steps of,
step S1, configuring the monitoring device according to the requirement.
Step S2, determining vehicle information of the current vehicle to be measured by using the camera 3, the vehicle speed sensor 2, and the like, where the vehicle information at least includes vehicle identity information and vehicle speed information.
And step S3, determining the environmental information of the current measured automobile driving channel vehicle 1 by using the wind speed sensor 5, the temperature sensor 6, the humidity sensor 7 and the like, wherein the environmental information at least comprises environmental wind speed information, environmental humidity information and environmental temperature information.
And step S4, determining the outgoing laser wavelength of the laser emitting receiver in the laser monitoring unit according to the vehicle information and/or the environment information.
And step S5, the laser emitting receiver in the laser monitoring unit emits laser to the laser reflector according to the wavelength of the emitted laser, the laser is turned back to the laser emitting receiver through the laser reflector, and then the returning wavelength of the laser is determined, wherein the laser needs to pass through the emissions of the tested automobile 9 twice.
And step S6, comparing the laser emission wavelength with the laser return wavelength, and determining the emission condition of the emission of the tested automobile 9 according to the change of the laser emission wavelength and the laser return wavelength.
The above description is only intended to illustrate embodiments of the present invention, and the description is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.