CN117278824A - Green vision rate acquisition system and method for ecological environment monitoring - Google Patents
Green vision rate acquisition system and method for ecological environment monitoring Download PDFInfo
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 238000011835 investigation Methods 0.000 claims abstract description 4
- 239000013598 vector Substances 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
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- 238000004458 analytical method Methods 0.000 claims description 3
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- 230000007613 environmental effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000003384 imaging method Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/40—Correcting position, velocity or attitude
- G01S19/41—Differential correction, e.g. DGPS [differential GPS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a system and a method for acquiring green vision rate of ecological environment monitoring, comprising a street view acquisition vehicle, a carrier for investigation and acquisition of green vision rate of a motor vehicle lane, a vehicle body and mechanical firmware for fixing acquisition equipment on a vehicle roof, wherein the vehicle body is provided with a vehicle body; GNSS equipment is used for positioning the acquisition equipment and acquiring a system track; the odometer is used for recording the travelling mileage of the acquisition equipment, controlling the exposure interval of the camera and is arranged on the automobile hub; the controller is used for recording the distance data of the automobile, receiving GNSS time serial port synchronous PPS pulses, calculating the actual moving distance in real time, sending a camera trigger exposure TTL signal, selecting a 20mm focal length lens and a 35mm full-frame camera, designing a height-adjustable sliding rod mechanical structure, fixing the camera at a distance of 1.6-1.8 meters from the ground, ensuring a clear imaging view field of the camera at a horizontal angle of 84 degrees and a vertical angle of 62 degrees, and achieving the effect of simulating human eye vision. The system for acquiring the green vision rate of the ecological environment monitoring has the effect of simulating the human eyes to receive greening information.
Description
Technical Field
The invention relates to the field of greening, in particular to a green vision rate acquisition system for ecological environment monitoring.
Background
The urban greening system is an important component of modern ecological urban construction, and plays an irreplaceable role in relieving urban heat island effect, fixing carbon and releasing oxygen, improving urban microclimate, regulating urban ecological balance and the like.
Besides providing ecological benefits, the urban greening system has remarkable effects on the comfort experience and emotion regulation of the living environment, and related researches show that the urban greening system has the positive effects of eliminating fatigue and protecting health. Therefore, the index of green vision rate is used for visual evaluation standard of green space perception, which is defined as the percentage of green in human visual field, is a measurable physical quantity, and is suitable as an effective green landscape evaluation factor.
At present, in the aspect of urban street view green vision rate calculation, a traditional field photographing mode and an image processing mode are mainly adopted to perform green vision rate test, when the existing green vision rate is used for collecting photos, the travel is generally controlled to be the same, the heights of the collected photos are difficult to control or adjust, simulation of green vision rate effects in human eyes of pedestrians with various heights cannot be formed, and the operation efficiency and the green vision rate extraction precision are low.
Disclosure of Invention
Aiming at the problems, the system and the method for acquiring the green vision rate of the ecological environment monitoring are provided, and aim to solve the problems in the prior art.
The specific technical scheme is as follows:
the system comprises a street view collection vehicle, a carrier for investigation and collection of the green view rate of a motor vehicle lane, a vehicle body and mechanical firmware for fixing collection equipment on the roof of the vehicle; GNSS equipment is used for positioning the acquisition equipment and acquiring a system track; the odometer is used for recording the travelling mileage of the acquisition equipment, controlling the exposure interval of the camera and is arranged on the automobile hub; the controller is used for recording the distance data of the automobile, receiving the synchronous PPS pulse of the GNSS time serial port, calculating the actual moving distance in real time, sending a camera trigger exposure TTL signal, recording an exposure flash signal, summarizing the acquisition information of the acquisition equipment, the positioning information of the GNSS equipment and the mileage information of the automobile, and fixing the mechanical firmware of the acquisition equipment, wherein the acquisition height can be adjusted.
The above-mentioned green vision rate acquisition system for ecological environment monitoring is characterized in that the GNSS device comprises a GNSS antenna and a receiver, and the GNSS device supports GPS, GLONASS and BDS positioning systems, and the data sampling frequency is 10Hz.
The beneficial effect of above-mentioned scheme: and acquiring positioning information of each shooting point position so as to carry out subsequent data processing.
The system for collecting the green vision rate of the ecological environment monitoring is characterized by further comprising a power module, wherein the power module comprises a lithium battery and a battery protection module, the lithium battery is used for supplying power to the controller, and the battery protection module has the functions of automatic overload, short circuit, over-temperature, overvoltage and electrode reverse connection protection.
The beneficial effect of above-mentioned scheme: the power module supplies power to the system and has the effect of protecting equipment to a certain extent.
The above-mentioned green rate acquisition system of ecological environment monitoring still has such characteristic, altitude mixture control subassembly includes fixed base, slide bar and is used for installing acquisition equipment's fixed body, fixed base accessible bolt fastening is in the car top, the slide bar vertically set up in fixed base top surface, the fixed body set up in on the slide bar, can follow the slide bar slides from top to bottom.
The beneficial effect of above-mentioned scheme: the height of the collecting equipment is conveniently adjusted so as to achieve the greening effect of simulating people with different heights.
The system for collecting the green vision rate of the ecological environment monitoring has the characteristics that the height from the ground is 1.6 meters when the collecting equipment slides to the lowest point on the sliding rod, and the height from the ground is 1.8 meters when the collecting equipment slides to the highest point on the sliding rod.
The beneficial effect of above-mentioned scheme: so that the collection device can simulate the greening effect seen by the corresponding human eyes in the most common height range.
The system for acquiring the green vision rate of the ecological environment monitoring is characterized in that the acquisition equipment is a micro single camera with a 20mm focal length, a 90-degree angle of view and a 35mm full-frame sensor size.
The beneficial effect of above-mentioned scheme: the visual range of human eyes is simulated to control the green vision rate in the collected photo to be closest to the human eye effect.
The green vision rate acquisition method for ecological environment monitoring utilizes the acquisition system to acquire and process data, and comprises the following steps:
s1, acquiring original data;
s2, carrying out integrated navigation calculation on the original data, and outputting vehicle track vector data;
s3, combining the vehicle track vector data with camera trigger data to output exposure point vector data;
s4, combining external road network vector data, performing topology analysis on the spatial position, reorganizing and cataloging the image data according to roads, and outputting image reorganization attribute hooking data;
and S5, realizing road network attribute hooking of the exposure point vector, and finally generating an image result and a corresponding point vector result.
The above-mentioned green vision rate collection system for ecological environment monitoring further has such a feature, the step S1 includes:
s11, positioning by using GNSS equipment as acquisition equipment to obtain positioning information;
s12, acquiring vehicle DMI wheel mileage data by using an odometer;
s13, acquiring time synchronization data by using the controller.
In summary, the beneficial effects of this scheme are:
in the system for acquiring the green vision rate of the ecological environment monitoring, a 20mm focal length lens and a 35mm full-frame camera are selected, a height-adjustable sliding rod mechanical structure is designed, the camera is fixed at a distance of 1.6-1.8 m from the ground, a clear imaging view field of 84 degrees horizontally and 62 degrees vertically of the camera is ensured, and the effect of simulating human eye vision is achieved. The system for acquiring the green vision rate of the ecological environment monitoring has the effect of simulating the human eyes to receive greening information.
In the green vision rate acquisition system for ecological environment monitoring, the absolute positioning track of the GNSS signal non-lock loss road section is obtained through differential resolving, and coordinate interpolation is carried out on the lock loss road section by utilizing mileage data of a wheel encoder to obtain a complete track result of the system. The system for acquiring the green vision rate of the ecological environment monitoring has the effect of acquiring the coordinates corresponding to each green vision rate photo.
Drawings
FIG. 1 is a schematic diagram of a front view structure of a green vision rate acquisition system for ecological environment monitoring according to the present invention;
fig. 2 is a flow chart of a method for collecting the green vision rate of the ecological environment monitoring of the invention.
Description of the drawings: 1. a fixed base; 2. a slide bar; 3. a fixing body.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be further illustrated, but is not limited, by the following examples.
Fig. 1 is a schematic diagram of a front view structure of an ecology environment monitoring green view rate acquisition system according to the present invention, and fig. 2 is a flow chart of a method for acquiring the ecology environment monitoring green view rate according to the present invention, as shown in fig. 1, the ecology environment monitoring green view rate acquisition system provided in this embodiment: the system comprises a street view collection vehicle, a carrier for investigation and collection of the green vision rate of a motor vehicle lane, and comprises a vehicle body, mechanical firmware used for fixing collection equipment on the vehicle roof, GNSS equipment, a system track, an odometer, a mileage recording collection equipment, an exposure interval used for controlling a camera, a controller, a trigger exposure TTL signal of a real-time calculation actual moving distance sending camera and a record exposure flash signal, collection information of the collection equipment, positioning information of the GNSS equipment and mileage information of the vehicle are summarized, and a height adjusting component is used for fixing the mechanical firmware of the collection equipment, and the collection height can be adjusted.
The operation is carried out according to the normal vehicle speed (< 60 km/h), the road middle lane is selected as much as possible, and the normal receiving of the GNSS signals of the system is ensured.
In the above embodiment, the GNSS device comprises a GNSS antenna and a receiver, and supports GPS, GLONASS and BDS positioning systems, and the data sampling frequency is 10Hz.
In the above embodiment, the battery protection module further comprises a power module, wherein the power module comprises a lithium battery and a battery protection module, the lithium battery is used for supplying power to the controller, and the battery protection module has the functions of automatic overload, short circuit, over-temperature, over-voltage and reverse electrode connection protection.
In the above embodiment, the height adjusting assembly comprises a fixed base 1, a slide bar 2 and a fixed body 3 for installing the collecting device, the fixed base 1 can be fixed on the top of the automobile through bolts, the slide bar 2 is vertically arranged on the top surface of the fixed base 1, and the fixed body 3 is arranged on the slide bar 2 and can slide up and down along the slide bar 2.
In the above embodiment, the height from the ground is 1.6 m when the collecting device slides to the lowest point on the slide bar 2, and the height from the ground is 1.8 m when the collecting device slides to the highest point on the slide bar 2.
In the above embodiment, the acquisition device is a micro-single camera with a focal length of 20mm, an angle of view of around 90 °, and a full-frame sensor size of 35 mm.
In order to ensure full coverage and no redundancy, an external trigger type exposure of 50-100 meters is adopted.
As shown in fig. 2, the method for collecting the green vision rate of the ecological environment monitoring provided by the embodiment includes the following steps: and fusing the positioning data of the GNSS with the mileage data of the DMI wheel encoder and the synchronous data of the control system, and performing integrated navigation calculation to obtain continuous driving track vectors. According to the camera trigger time data, the exposure point coordinates of each image can be calculated from the track vector with the time sequence, and the exposure point vector is obtained. By combining external road network vector data and through space position topology analysis, the image data can be reorganized and cataloged according to roads, road network attribute hooking of the exposure point vector is realized, and finally, an image result and a corresponding point vector result are generated.
In the above embodiment, the GNSS device is used to perform positioning for the acquisition device, to acquire positioning information, the odometer is used to acquire vehicle DMI wheel mileage data, and the controller is used to acquire time synchronization data.
The method is characterized in that signals output by a system odometer are read in real time and converted into driving mileage data of a carrier, meanwhile, GNSS time serial port synchronous PPS pulses are received, a camera trigger exposure TTL signal is sent according to the actual moving distance of the carrier, and an exposure flash signal is recorded, so that automatic exposure of the camera is realized.
Before the green vision rate is collected, the height of the collecting equipment is adjusted and fixed at a required height, a vehicle is started to travel along a road to be collected, the vehicle speed is controlled to be lower than 60km/h for data collection, the odometer records the travelling mileage of the collecting equipment and is used for controlling the exposure distance of a camera, the accurate exposure time of each exposure point of the camera can be obtained through the high-precision time synchronization technology of a controller, the combined navigation calculation of GNSS differential positioning data and wheel coding mileage data is utilized, the driving locus data and the position coordinates of each photo can be output, and the requirements of the automatic and rapid collection of the green vision rate of different scenes such as roads, pedestrian/non-motor lanes, parks/communities are met.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the teachings of the present invention, which are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a green rate acquisition system of ecological environment monitoring which characterized in that includes:
the street view collection vehicle is a carrier for investigation and collection of the green vision rate of a motor vehicle lane and comprises a vehicle body and mechanical firmware for fixing collection equipment on a vehicle roof;
GNSS equipment is used for positioning the acquisition equipment and acquiring a system track;
the odometer is used for recording the travelling mileage of the acquisition equipment, controlling the exposure interval of the camera and is arranged on the automobile tire;
the controller is used for recording the distance data of the automobile, receiving GNSS time serial port synchronous PPS pulses, calculating the actual moving distance in real time, sending a camera trigger exposure TTL signal, recording an exposure flash signal, and summarizing the acquisition information of the acquisition equipment, the positioning information of the GNSS equipment and the mileage information of the automobile;
and the height adjusting assembly is used for fixing mechanical firmware of the acquisition equipment and can adjust the acquisition height.
2. The system for green vision rate collection for ecological environment monitoring according to claim 1, wherein: the GNSS device comprises a GNSS antenna and a receiver, and supports GPS, GLONASS and BDS positioning systems, and the data sampling frequency is 10Hz.
3. The system for green vision rate collection for ecological environment monitoring according to claim 1, wherein: the lithium battery is used for supplying power to the controller, and the battery protection module has the functions of automatic overload, short circuit, over-temperature, overvoltage and electrode reverse connection protection.
4. The system for green vision rate collection for ecological environment monitoring according to claim 1, wherein: the height adjusting assembly comprises a fixed base (1), a sliding rod (2) and a fixed body (3) for mounting the collecting equipment, wherein the fixed base (1) can be fixed on the top of an automobile through bolts, the sliding rod (2) is vertically arranged on the top surface of the fixed base (1), and the fixed body (3) is arranged on the sliding rod (2) and can slide up and down along the sliding rod (2).
5. The system for green vision rate collection for ecological environmental monitoring according to claim 4, wherein: the height from the ground of the collecting equipment is 1.6 meters when the collecting equipment slides to the lowest point on the sliding rod (2), and the height from the ground of the collecting equipment is 1.8 meters when the collecting equipment slides to the highest point on the sliding rod (2).
6. The system for green vision rate collection for ecological environmental monitoring according to claim 5, wherein: the acquisition equipment is a micro single camera with the size of a full-frame sensor with the focal length of 20mm, the angle of view of about 90 degrees and the size of 35 mm.
7. A method for acquiring green vision rate of ecological environment monitoring, which uses the acquisition system of claims 1-6 for data acquisition and processing, and is characterized in that: the method comprises the following steps:
s1, acquiring original data;
s2, carrying out integrated navigation calculation on the original data, and outputting vehicle track vector data;
s3, combining the vehicle track vector data with camera trigger data to output exposure point vector data;
s4, combining external road network vector data, performing topology analysis on the spatial position, reorganizing and cataloging the image data according to roads, and outputting image reorganization attribute hooking data;
and S5, realizing road network attribute hooking of the exposure point vector, and finally generating an image result and a corresponding point vector result.
8. The system for green vision rate collection for ecological environmental monitoring according to claim 7, wherein: the step S1 includes:
s11, positioning by using GNSS equipment as acquisition equipment to obtain positioning information;
s12, acquiring vehicle DMI wheel mileage data by using an odometer;
s13, acquiring time synchronization data by using the controller.
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| CN202311215186.8A CN117278824A (en) | 2023-09-20 | 2023-09-20 | Green vision rate acquisition system and method for ecological environment monitoring |
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| CN202311215186.8A CN117278824A (en) | 2023-09-20 | 2023-09-20 | Green vision rate acquisition system and method for ecological environment monitoring |
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| CN112240762A (en) * | 2020-10-15 | 2021-01-19 | 中国电建集团中南勘测设计研究院有限公司 | Ground photogrammetry data acquisition system |
| CN113553958A (en) * | 2021-07-27 | 2021-10-26 | 浙江大学 | Expressway green belt detection method and device |
| CN115435773A (en) * | 2022-09-05 | 2022-12-06 | 北京远见知行科技有限公司 | High-precision map collecting device for indoor parking lot |
-
2023
- 2023-09-20 CN CN202311215186.8A patent/CN117278824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107301677A (en) * | 2016-10-13 | 2017-10-27 | 江苏智途科技股份有限公司 | The vehicle-mounted mobile image acquisition device and acquisition method of a kind of three-dimensional modeling |
| KR101882683B1 (en) * | 2017-07-13 | 2018-07-30 | 한국건설기술연구원 | System fo detecting position information of road lane using real time kinematic (rtk)- global navigation satellite system (gnss), and method for the same |
| CN112240762A (en) * | 2020-10-15 | 2021-01-19 | 中国电建集团中南勘测设计研究院有限公司 | Ground photogrammetry data acquisition system |
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