CN113096258A - Multi-view-angle portable green-channel comprehensive checking platform - Google Patents
Multi-view-angle portable green-channel comprehensive checking platform Download PDFInfo
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- CN113096258A CN113096258A CN202110268264.5A CN202110268264A CN113096258A CN 113096258 A CN113096258 A CN 113096258A CN 202110268264 A CN202110268264 A CN 202110268264A CN 113096258 A CN113096258 A CN 113096258A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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Abstract
The invention discloses a multi-view portable green-channel comprehensive checking platform, which relates to the technical field of detection and comprises a green-channel detection module, a network transmission module, a green channel camera module and a monitoring center, wherein the system is a special system developed aiming at checking work of highway green-channel vehicles, integrates multiple technologies and functions of video acquisition, data analysis, wireless communication, automatic monitoring and the like, greatly improves the charge management service level of a highway, changes the highway green-channel passing environment, improves the passing efficiency, sets a hand-pulling checking mechanism, does not need an inspector to go to the top of a vehicle for checking, reduces the danger coefficient of operation, and saves a ladder; due to the arrangement of the sample box, the sample can be contained in the sample box, so that the containing effect is achieved, and the environment at the toll island is prevented from being polluted; the side of stand can be arranged in to the sampling tube with the help of supporting sleeve and layer board, and the random usefulness is compared traditional sample mode along with getting, and it is more convenient to use.
Description
Technical Field
The invention belongs to the technical field of detection, and particularly relates to a multi-view-angle portable comprehensive checking platform for green traffic.
Background
According to the relevant regulations of the state about the 'green channel' policy, the 'green channel' transportation policy is not enjoyed when the transportation vehicles which do not conform to the whole vehicle loading (the fresh agricultural products must reach the nuclear loading tonnage of the vehicle or occupy more than 80 percent of the effective loading space of the vehicle and are not mixed with other goods which do not belong to the variety range of the fresh agricultural products) and illegal loading pass through the highway toll station. Therefore, live agricultural product transport vehicles must be inspected on-site by toll station personnel while passing through the highway "green lane".
Because whether the loading space of the transport vehicle reaches 80 percent and is difficult to define, the phenomenon of mixed loading and evasion of toll fee is serious, the inspection means is lagged, and other factors exist, in order to accurately distinguish whether the products loaded by the vehicle meet the regulations, when each vehicle for transporting fresh agricultural products passes through a toll station, a series of procedures of unpacking, checking goods, reporting, monitoring and registering, binding vehicle tarpaulin and the like are required, and the inspection procedure can be completed in 10-20 minutes on average for each vehicle. Especially, in a provincial toll station with heavy traffic, a plurality of security team members are required to be specially responsible for loading and unloading goods every day, nearly thousands of vehicles need to be inspected within 24 hours, the working efficiency is low, the labor intensity is very high, and the work of related personnel is not facilitated.
Disclosure of Invention
The invention aims to provide a multi-view-angle portable comprehensive inspection platform for green channels, which aims to solve the problems that the inspection process of green channels of expressways is complicated, the work efficiency of inspectors is low, the inspection data is inaccurate, the later-stage inspection cannot be carried out in time, an effective inspection evidence chain cannot be formed and the like.
A multi-view portable green channel comprehensive checking platform comprises a green channel detection module, a network transmission module, a green channel camera module and a monitoring center;
the green traffic detection module is used for checking and recording information of cargos loaded by green traffic vehicles on site, wherein a hand-pull checking mechanism is used for checking the cargo information at the top and inside of the open wagon in the field checking process, and meanwhile, the cargo information inside the van can be checked by means of a hand-held green traffic detector;
the network transmission module is responsible for transmitting information recorded at the front end to the monitoring center and simultaneously collecting and transmitting charging information related to the vehicle to the monitoring center;
the green channel camera module is used for monitoring the service operation process of the inspectors in the inspection process of the green traffic vehicle;
and the monitoring center is responsible for storing and managing the acquired data.
Furthermore, the monitoring center can realize the functions of license plate recognition, vehicle information acquisition, data analysis and video compression, wherein;
the vehicle information acquisition comprises the information of the entrance place, the vehicle type, the entrance lane, the license plate number, the card sender, the vehicle exit weighing, the charging lane, the toll collector, the chargeable amount, the actual chargeable amount and the reduced and exempted toll amount of the vehicle;
the data analysis means deep analysis, cleaning and fusion of the acquired data to form a multi-dimensional unified data warehouse, and association rule mining, clustering and classification operations are performed by adopting a data mining technology.
Furthermore, the monitoring center is connected to a management department through a network transmission module, the management department is connected to a high administration office through the network transmission module, and the monitoring levels of the monitoring center, the management department and the high administration office are sequentially increased.
Furthermore, the hand-pulling type checking mechanism comprises two travelling mechanisms, a cross beam, a plurality of cameras, a sampling mechanism and a shooting mechanism, wherein the two travelling mechanisms are symmetrically arranged on two sides of a lane of the toll island and can travel along the lane, the two ends of the cross beam are fixedly installed at the upper ends of the two travelling mechanisms, the cameras are equidistantly installed on the cross beam and are connected to the monitoring center through a network transmission module, the sampling mechanism is installed on the travelling mechanisms and is used for sampling cargoes from a convertible truck sealed by tarpaulin, the sampling mechanism is used for discharging samples into the sample box after sampling and resetting and shooting evidence of the samples through the shooting mechanism on the sample box, and the shooting mechanism is connected to the monitoring center through the network transmission module.
Further, running gear includes base, stand and walking wheel, the stand is fixed in the upper end of base, the walking wheel is installed in the lower extreme of base.
Further, sampling mechanism includes pivot, support sleeve, sampling tube, hand wheel, gag lever post and layer board, the one end of pivot is rotated and is connected on the bearing in the stand and the level sets up, and the pivot is parallel with the lane, support sleeve's side is fixed in the other end of pivot, and sampling tube sliding connection is in support sleeve and its end-to-end connection has the hand wheel, the layer board is fixed in the side of stand and is located the top of sample box, the gag lever post is fixed in the side of stand and is located the same one side of stand with the layer board, and the gag lever post touches with the sampling tube when the sampling tube is in under vertical state, the sample box is installed in the upper end of base.
Further, the shooting mechanism comprises a mounting plate and a camera, the mounting plate is mounted on the side face of the sample box, and the camera is mounted on the mounting plate and the shooting direction of the camera is aligned with the inside of the sample box.
The invention has the advantages that:
(1) the invention relates to a multi-view portable comprehensive inspection platform for green traffic, which is a special system developed aiming at the inspection work of vehicles on highway green traffic, integrates multiple technologies and functions of video acquisition, data analysis, wireless communication, automatic monitoring and the like, greatly improves the charging management service level of highway, changes the green road traffic environment of highway, improves traffic efficiency, effectively reduces the tail gas emission of motor vehicles, improves environmental pollution, saves energy, enhances the charging inspection capability, reduces the occurrence of illegal activities of checking personnel for personal interests, prevents the checking personnel of toll stations from colluding the drivers of fake green traffic to avoid the charging activities by multi-angle monitoring and supervision, produces various data reports by establishing green traffic information databases of various toll stations and combining with the analysis of related data information, improves the management efficiency of toll departments by more than 30 percent, saving the inspection time and improving the comprehensive management capability of the inspection department.
(2) According to the invention, the hand-pulling type checking mechanism is arranged, so that inspection personnel do not need to go to the top of the vehicle for checking, the danger coefficient of operation is reduced, and a ladder is omitted; due to the arrangement of the sample box, the sample can be contained in the sample box, so that the containing effect is achieved, and the environment at the toll island is prevented from being polluted; the sampling tube can be arranged on the side surface of the upright post by means of the supporting sleeve and the supporting plate, and can be taken and used at any time, so that the sampling tube is more convenient and faster to use compared with a traditional sampling mode; the sample of sampling tube front end slips to the sample incasement, and the sample is shot with the help of the camera and is collected evidence, borrows the supervisor of surveillance center to verify, has realized the collection of on-the-spot data on the one hand, and on the other hand has also improved the accuracy of data.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
FIG. 2 is an architecture diagram of a three-level management architecture of the present invention.
Fig. 3 is a schematic structural diagram of a hand-pulling type checking mechanism in the present invention.
Fig. 4 is a front view of fig. 3.
Fig. 5 is a side view of fig. 3.
FIG. 6 is a schematic view of the structure of the sampling tube.
The system comprises a walking mechanism, a base, a column 12, a walking wheel 13, a beam 2, a camera 3, a sampling mechanism 4, a rotating shaft 41, a supporting sleeve 42, a sampling tube 43, a hand wheel 44, a limiting rod 45, a supporting plate 46, a shooting mechanism 5, a mounting plate 51, a camera 52 and a sample box 6.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 and 2, a multi-view portable green channel comprehensive inspection platform includes a green channel detection module, a network transmission module, a green channel camera module, and a monitoring center;
the green traffic detection module is used for checking and recording information of cargos loaded by green traffic vehicles on site, wherein a hand-pull checking mechanism is used for checking the cargo information at the top and inside of the open wagon in the field checking process, and meanwhile, the cargo information inside the van can be checked by means of a hand-held green traffic detector;
the network transmission module is responsible for transmitting information recorded at the front end to the monitoring center and simultaneously collecting and transmitting charging information related to the vehicle to the monitoring center;
the green channel camera module is used for monitoring the service operation process of the inspectors in the inspection process of the green traffic vehicle;
and the monitoring center is responsible for storing and managing the acquired data.
In the embodiment, the monitoring center can realize the functions of license plate recognition, vehicle information acquisition, data analysis and video compression, wherein the functions of the license plate recognition, the vehicle information acquisition, the data analysis and the video compression are realized;
the vehicle information acquisition comprises the information of the entrance place, the vehicle type, the entrance lane, the license plate number, the card sender, the vehicle exit weighing, the charging lane, the toll collector, the chargeable amount, the actual chargeable amount and the reduced and exempted toll amount of the vehicle;
the data analysis means deep analysis, cleaning and fusion of the acquired data to form a multi-dimensional unified data warehouse, and association rule mining, clustering and classification operations are performed by adopting a data mining technology.
In this embodiment, the monitoring center is further connected to the management department through the network transmission module, the management department is connected to the high administration office through the network transmission module, and the monitoring levels of the monitoring center, the management department and the high administration office are sequentially increased.
Vehicle information collection
In order to ensure that the green traffic information is consistent with the vehicle charging information, the information of the entrance place, the vehicle type, the entrance lane, the license plate number, the card sender and the like of the vehicle is required to be acquired from the charging system equipment, and the information of the vehicle exit weighing, the charging lane, the toll collector, the amount to be charged, the actual charging amount, the deduction and exemption toll amount and the like are also required to be acquired.
It is important how to obtain the relevant information, and any software tool for forwarding or collecting the relevant information cannot be installed on the relevant computer in the charging system for ensuring the safety and independence of the charging system. And the charging network is a completely independent network and is physically separated from other networks such as a daily monitoring network. And the vehicle information acquisition uses a special intelligent information acquisition device. The working principle is that before the related information of weighing, reading card and passing equipment is sent to a charging network, the data is subjected to read-only sharing processing. For example: the interface that weighing system and charging system are connected is the serial ports mode, the different circuit that is used is received and sent to serial ports data, need install a data sharing ware on weighing device transmission line, like this when weighing device sends data to the industrial computer of toll lane, information intelligence collector just receives the relevant data from weighing system simultaneously, when these data reach information intelligence collector, its built-in weighing software system can be according to the information received, send the most accurate weighing result for green logical system after carrying out internal analysis and calculation. In order to ensure that the data is completely consistent with the data of the charging system, the intelligent information collector uses original factory software of the weighing equipment to calculate and process the data, so that the obtained data is completely consistent and complete.
The workflow of the green pass inspection is as follows:
when a vehicle enters the charging island and passes through the weighing system, the system sends vehicle axle weight data to the data sharer. And the data sharer processes the data by one and two, respectively sends the completely consistent data to the lane toll industrial personal computer and the information intelligent collector, and completely consistent weighing calculation software which is internally arranged in the toll industrial personal computer and the information intelligent collector simultaneously calculates and gives completely consistent results.
When the vehicle travels to the toll collection window, the pass card acquired at the entrance station is delivered to the exit toll collector. And the toll collector performs card reading operation, at the moment, the card reading system works and sends the information in the card to the data sharing device. The data sharing device divides the data into two parts for processing, and respectively sends the two parts of completely consistent data to the lane charging industrial personal computer and the information intelligent collector, the charging system performs charging calculation processing, and the green system extracts information such as vehicle information, vehicle entrance information, vehicle type information, card issuing lanes, card issuing personnel and the like from the data, and then sends the information to the information intelligent collector and uploads the data to the green server. And at the moment, the green expert inspector finishes the vehicle inspection, the data is uploaded to a green expert server of the monitoring center, and after the monitoring personnel confirm whether the green expert passing conditions are met, the green expert system calculates the receivable cost, the actual receiving cost and the exemption cost. And the calculation result is sent to a portable green-passing detector held by the inspector for display, and the inspector communicates with the toll collector internally and executes a toll collection program according to relevant regulations.
Green channel camera monitoring
In order to accelerate the release speed of visible green traffic vehicles and check whether the checking process of the whole green traffic meets the requirements after the checking, a pan-tilt camera (namely a green channel camera module) is respectively arranged at the front and the back of a ceiling of a green traffic channel, NVR is used, historical videos are respectively stored in each station, and a monitor can check the whole checking process through a green traffic monitoring camera in real time when the green traffic vehicles are checked.
For the post-green-traffic inspection, the green-traffic data, the license plate video and the cargo video inspected by the green-traffic inspection and the whole inspection process video can be checked, and the green-traffic monitoring video can be played back according to the inspection record to check the whole inspection process.
Lvtong detection and inspection
The green pass checking function is deployed in a monitoring center as a client program, is a service function facing a monitor, can complete the checking process of green pass vehicles, and comprises the functions of checking videos, recording checking data, determining whether toll fee is reduced or not and the like.
As shown in fig. 3 to 6, in consideration of the on-site inspection process, the tarpaulin of the truck often needs to be detached, an inspector on the site checks and photographs the top of the truck by means of a ladder, so that safety accidents are easy to occur, meanwhile, the inspection of goods which cannot be obviously seen inside the truck is also needed, the process generally adopts a sampling mode, namely, one sampling tube 43 is held by hand, the inspector manually inserts the sampling tube into the goods from the side surface of the truck to take out part of the samples for inspection, and after sampling, the inspector on the side needs to take pictures for evidence taking, so that the process is very inconvenient. Therefore, in order to improve the convenience of the on-site inspectors and protect the personal safety of the inspectors, the hand-pulling type inspection mechanism is adopted and specifically comprises a walking mechanism 1, a beam 2, a plurality of cameras 3, a sampling mechanism 4 and a shooting mechanism 5, the two travelling mechanisms 1 are symmetrically arranged at two sides of the toll island lane and can travel along the lane, two ends of the beam 2 are fixedly arranged at the upper ends of the two walking mechanisms 1, a plurality of cameras 3 are equidistantly arranged on the beam 2 and are connected to a monitoring center through a network transmission module, the sampling mechanism 4 is installed on the travelling mechanism 1 and used for sampling goods from a convertible truck sealed by tarpaulin, the sampling mechanism 4 is used for sampling and resetting the goods, then discharging the samples into the sample box 6 and carrying out evidence-taking shooting on the samples through the shooting mechanism 5 on the sample box 6, and the shooting mechanism 5 is connected to a monitoring center by means of a network transmission module.
In this embodiment, the traveling mechanism 1 includes a base 11, a column 12 and traveling wheels 13, the column 12 is fixed to the upper end of the base 11, and the traveling wheels 13 are installed at the lower end of the base 11.
In this embodiment, sampling mechanism 4 includes pivot 41, support sleeve 42, sampling tube 43, hand wheel 44, gag lever post 45 and layer board 46, the one end of pivot 41 is rotated and is connected on the bearing in stand 12 and the level sets up, and pivot 41 is parallel with the lane, the side of support sleeve 42 is fixed in the other end of pivot 41, and sampling tube 43 sliding connection has hand wheel 44 in support sleeve 42 and its end-to-end connection, layer board 46 is fixed in the side of stand 12 and is located the top of sample box 6, gag lever post 45 is fixed in the side of stand 12 and is located the same one side of stand 12 with layer board 46, and gag lever post 45 and sampling tube 43 contact when sampling tube 43 is in vertical state, sample box 6 installs in the upper end of base 11.
In this embodiment, the photographing mechanism 5 includes a mounting plate 51 and a camera 52, the mounting plate 51 is mounted on the side of the sample box 6, and the camera 52 is mounted on the mounting plate 51 and its photographing direction is aligned with the inside of the sample box 6.
The working process of the hand-pulling type checking mechanism is as follows:
after the tarpaulin of the truck is disassembled, an inspector pulls the upright post 12 to move along the lane by virtue of the handrail on the side surface of the upright post 12, the camera 3 shoots and obtains evidence of goods on the top of the truck and uploads the evidence to a monitoring center, the inspector does not need to go to the top of the truck for checking, the danger coefficient of operation is reduced, and a ladder is saved;
when sampling inspection is needed, the sampling tube 43 is manually moved to a horizontal state and then inserted into the truck, the hand wheel 44 is rotated, after a sample is taken out, the hand wheel 44 is put down, the sampling tube 43 rotates along the supporting sleeve 42 and falls down, due to the action of the limiting rod 45, the sampling tube 43 is finally in a vertical state, the hand wheel 44 is supported by the supporting plate 46 when falling to the supporting plate 46, and by means of the impact force when the sampling tube 43 falls down, the sample at the front end of the sampling tube 43 slides into the sample box 6 from the tail part of the sampling tube 43 (the sampling tube 43 is a through pipe, the front end of the sampling tube is a pointed end), and then the camera 52 is used for shooting and evidence obtaining of the sample, so that a supervisor of a monitoring center can check the sample.
Due to the arrangement of the sample box 6, the sample can be contained in the sample box, so that the storage effect is achieved, and the environment at a charging island is prevented from being polluted; the sampling tube 43 can be placed on the side of the column 12 by means of the support sleeve 42 and the support plate 46, and is easy to use and convenient to use compared with the conventional sampling method.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (7)
1. A multi-view portable green channel comprehensive checking platform is characterized by comprising a green channel detection module, a network transmission module, a green channel camera module and a monitoring center;
the green traffic detection module is used for checking and recording information of cargos loaded by green traffic vehicles on site, wherein a hand-pull checking mechanism is used for checking the cargo information at the top and inside of the open wagon in the field checking process, and meanwhile, the cargo information inside the van can be checked by means of a hand-held green traffic detector;
the network transmission module is responsible for transmitting information recorded at the front end to the monitoring center and simultaneously collecting and transmitting charging information related to the vehicle to the monitoring center;
the green channel camera module is used for monitoring the service operation process of the inspectors in the inspection process of the green traffic vehicle;
and the monitoring center is responsible for storing and managing the acquired data.
2. The comprehensive inspection platform for multi-view portable green channels according to claim 1, wherein: the monitoring center can realize the functions of license plate recognition, vehicle information acquisition, data analysis and video compression, wherein the functions of the license plate recognition, the vehicle information acquisition, the data analysis and the video compression are realized;
the vehicle information acquisition comprises the information of the entrance place, the vehicle type, the entrance lane, the license plate number, the card sender, the vehicle exit weighing, the charging lane, the toll collector, the chargeable amount, the actual chargeable amount and the reduced and exempted toll amount of the vehicle;
the data analysis means deep analysis, cleaning and fusion of the acquired data to form a multi-dimensional unified data warehouse, and association rule mining, clustering and classification operations are performed by adopting a data mining technology.
3. The comprehensive inspection platform for multi-view portable green channels according to claim 1, wherein: the monitoring center is further connected to a management department through a network transmission module, the management department is connected to a high administration office through the network transmission module, and the monitoring levels of the monitoring center, the management department and the high administration office are sequentially increased.
4. The comprehensive inspection platform for multi-view portable green channels according to claim 1, wherein: the hand-pulling type checking mechanism comprises a travelling mechanism (1), a beam (2), a plurality of cameras (3), a sampling mechanism (4) and a shooting mechanism (5), the two travelling mechanisms (1) are symmetrically arranged at two sides of the toll island lane and can travel along the lane, the two ends of the beam (2) are fixedly arranged at the upper ends of the two walking mechanisms (1), the plurality of cameras (3) are equidistantly arranged on the beam (2) and are connected to the monitoring center through the network transmission module, the sampling mechanism (4) is installed on the traveling mechanism (1) and used for sampling goods from a convertible truck sealed by tarpaulin, the sampling mechanism (4) samples and resets, then the samples are discharged into the sample box (6) and are subjected to evidence-taking shooting through the shooting mechanism (5) on the sample box (6), and the shooting mechanism (5) is connected to a monitoring center by means of a network transmission module.
5. The comprehensive inspection platform for multi-view portable green channels according to claim 4, wherein: running gear (1) includes base (11), stand (12) and walking wheel (13), stand (12) are fixed in the upper end of base (11), walking wheel (13) are installed in the lower extreme of base (11).
6. The comprehensive inspection platform for multi-view portable green channels according to claim 4, wherein: the sampling mechanism (4) comprises a rotating shaft (41), a supporting sleeve (42), a sampling tube (43), a hand wheel (44), a limiting rod (45) and a supporting plate (46), one end of the rotating shaft (41) is rotatably connected to a bearing in the upright post (12) and is horizontally arranged, the rotating shaft (41) is parallel to the lane, the side surface of the supporting sleeve (42) is fixed at the other end of the rotating shaft (41), the sampling tube (43) is connected in the supporting sleeve (42) in a sliding way, and the tail end of the sampling tube is connected with a hand wheel (44), the supporting plate (46) is fixed on the side surface of the upright post (12) and is positioned above the sample box (6), the limiting rod (45) is fixed on the side surface of the upright post (12) and is positioned on the same side of the upright post (12) with the supporting plate (46), when the sampling tube (43) is in a vertical state, the limiting rod (45) is in contact with the sampling tube (43), and the sample box (6) is arranged at the upper end of the base (11).
7. The comprehensive inspection platform for multi-view portable green channels according to claim 4, wherein: the shooting mechanism (5) comprises a mounting plate (51) and a camera (52), the mounting plate (51) is mounted on the side face of the sample box (6), and the camera (52) is mounted on the mounting plate (51) and the shooting direction of the camera is aligned with the interior of the sample box (6).
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| CN114323131A (en) * | 2021-12-23 | 2022-04-12 | 南京索安电子有限公司 | Train multi-face scanning imaging inspection system |
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