CN106969715B - Container vehicle inspection system - Google Patents
Container vehicle inspection system Download PDFInfo
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- CN106969715B CN106969715B CN201710345909.4A CN201710345909A CN106969715B CN 106969715 B CN106969715 B CN 106969715B CN 201710345909 A CN201710345909 A CN 201710345909A CN 106969715 B CN106969715 B CN 106969715B
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- light curtain
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B11/043—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a container vehicle inspection system, comprising: checking the channel; the movable cabin and the arm support are used for installing ray generating and receiving equipment; a ray unit for generating scanning rays to scan the container passing through the main beam of rays; the distance measuring sensor is used for detecting real-time displacement of the container; the box number identification system is used for extracting the length of the container before the vehicle reaches the scanning area; and the microcomputer control unit is respectively connected with the ranging sensor, the box number identification system and the ray unit and is used for controlling the ray unit to emit the scanning rays when the real-time displacement of the container measured by the ranging sensor is added with the length of the container to be equal to the preset distance. The invention can accurately control the emission time of the rays when detecting the container vehicle, ensure that only the container is accurately scanned, reliably avoid the radiation to a driver and reduce the radiation pollution to the surrounding environment of the container as much as possible.
Description
Technical Field
The invention belongs to the field of container vehicle safety inspection, and particularly relates to a container vehicle rapid inspection system.
Background
In order to realize the inspection of the vehicle-mounted container without opening the container, a quick detection mode is required to be arranged, but in the prior art, when the container vehicle passes through a detection area quickly, the time of ray emission is difficult to control accurately, radioactive rays are easy to emit to a driver or the surrounding environment is in radiation for a long time, and hidden danger is caused to the health of the driver and the surrounding environment. In order to ensure the safety of a driver and the possible radiation of the rays to the driver, the prior art can only reliably avoid the cab as the radiation emission time, and the situations of insufficient image scanning (missed detection of the front part of the container) of the container when the cab avoidance distance threshold value of different types of vehicles is set too large or the situations of long-time radiation to the environment outside the container caused by too small threshold value setting exist, so that the environment pollution is formed.
Therefore, how to design a new inspection system, to accurately control the emission time of rays when detecting a vehicle-mounted container, not only reliably avoiding the radiation to a driver, but also reducing the radiation to the environment as much as possible becomes a technical problem expected to be solved.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a vehicle-mounted container inspection system, wherein a ranging sensor and a container number identification system are arranged at the entrance of an inspection channel, after the length of a container is extracted, the moment that the container reaches a scanning ray main beam is accurately mastered by detecting the real-time displacement of the container, the time of ray emission can be accurately controlled, the accurate scanning of the container is ensured, the radiation to a driver can be reliably avoided, and the radiation to the surrounding environment can be reduced as much as possible.
The technical scheme of the invention is as follows: the container vehicle detection system includes an inspection tunnel 13, and further includes: the movable cabin and the arm support 9 are arranged on the tracks 6 arranged on two sides of the inspection channel 13, the arm support of the movable cabin and the arm support 9 consists of a vertical arm and a cross beam, wherein the cross beam connects the movable cabin of the movable cabin and the arm support 9 and the vertical arm at the top to form a door-shaped integral structure, and the bottom of the movable cabin and the vertical arm of the door-shaped integral structure is provided with rollers and a driving device to form the movable cabin and the arm support 9 which can move left and right along the tracks 6;
a ray unit 10, wherein the ray unit 10 is installed in the movable cabin and is used for emitting scanning rays and scanning and detecting the container vehicle 14 reaching a preset position;
the distance measuring sensor 4 is arranged at the inlet of the inspection channel, faces the outlet end of the inspection channel and is used for measuring the real-time displacement of the vehicle-mounted container entering the inspection channel 13;
a bin number identification system 5, the bin number identification system 5 being installed in a designated area between the entrance of the inspection tunnel 13 and the ray unit 10 for extracting a container bin number, container specification length information before the container vehicle 14 reaches a scanning detection position;
and the microcomputer control unit 11 is arranged in the movable cabin, is respectively connected to the distance measuring sensor 4, the box number identification system 5 and the ray unit 10 in a signal mode, and is used for controlling the ray unit 10 to emit scanning rays when the vehicle-mounted container displacement measured by the distance measuring sensor 4 and the length of the container acquired by the box number identification system 5 are equal to a preset distance.
Preferably, the method further comprises: a first light curtain 7, wherein the first light curtain 7 is connected to the microcomputer control unit 11 in a signal manner, is arranged on the entering side of the surface of the movable cabin and is used for detecting whether a container approaches a scanning area;
and a second light curtain 8 is connected to the microcomputer control unit 11 in a signal mode, is installed on the entering side of the surface of the movable cabin, is located between the first light curtain 7 and the main beam of the ray unit 10 and is close to the main beam, and is used for confirming whether the container detected by the first light curtain 7 is the same container in a scanning area or not.
Preferably, the microcomputer control unit 11 compares the real-time displacement difference values of the sequential triggering moments of the first light curtain 7 and the second light curtain 8 with the installation distance between the first light curtain 7 and the second light curtain 8, judges whether the measurement error of the ranging sensor 4 is within the allowable range, and controls the ray unit 10 to emit scanning rays when the detection error is within the allowable range;
the microcomputer control unit 11 detects whether the speed of the container vehicle 14 reaches a preset speed threshold according to the triggering time interval of the first light curtain 7 and the second light curtain 8, and controls the ray unit 10 to emit scanning rays when the detected speed reaches the speed threshold.
Preferably, the microcomputer control unit 11 controls the ray unit 10 to stop emitting the scanning rays when the error of the comparison between the displacement difference value of the sequential triggering time of the first light curtain 7 and the second light curtain 8 and the actual installation interval is larger than a preset value; and when the sequential triggering time interval of the first light curtain 7 and the second light curtain 8 is larger than the preset time interval, the microcomputer control unit 11 controls the ray unit 10 to stop emitting scanning rays.
Preferably, the first light curtain 7 and the second light curtain 8 are triggered simultaneously, and the microcomputer control unit 11 controls the ray unit 10 to emit scanning rays when the displacement of the vehicle-mounted container 14 measured by the ranging sensor 4 plus the length of the container acquired by the container number identification system 5 is equal to a preset distance.
Preferably, the method further comprises: an entrance photoelectric switch 3, wherein the entrance photoelectric switch 3 is connected to the microcomputer control unit 11 in a signal manner and is arranged at the entrance of the inspection channel 13 for detecting whether a vehicle is driven in;
the gate 2 is in signal connection with the microcomputer control unit 11, the gate 2 is arranged on the upstream side of the entrance photoelectric switch 3 and adjacent to the entrance photoelectric switch 3, the gate 2 is used for ensuring that a vehicle in the inspection channel 13 is unique after the entrance photoelectric switch 3 detects that the vehicle completely enters the inspection channel 13, and a gate stop lever of the gate falls to stop the subsequent vehicle from entering;
the traffic light 1 is connected to the microcomputer control unit 11 in a signal manner, is arranged on the outer side of an entrance of the inspection channel 13, faces the coming direction, and is used for guiding vehicles to travel, and after the entrance photoelectric switch 13 detects that the vehicles enter the inspection channel 13, a red light is turned on to prohibit subsequent vehicles from continuously entering.
Preferably, the rails 6 are disposed at two sides of the inspection channel 13, and a distance is provided between the rails and the entrance of the inspection channel 13, that is, a distance is provided between the rails and the entrance of the inspection channel 13, the rails 6 carry the movable nacelle and the arm support 9 to move left and right along the inspection channel 13, so as to adjust the preset distance between the ray unit 10 and the ranging sensor 4 according to the type of the container vehicle 14 inspected by the user.
Preferably, the method further comprises: an exit photoelectric switch 12, the exit photoelectric switch 12 is connected to the microcomputer control unit 11 in a signal manner, is arranged at the exit end of the inspection channel 13, is at a specified distance from the track 6, and is used for detecting whether the container vehicle 14 is driven out of the inspection channel 13.
Preferably, after the tail of the container vehicle 14 leaves the exit photoelectric switch 12, the microcomputer control unit 11 controls the gate stop lever of the gate 2 to lift up, and controls the traffic light 1 to light up a green light, waiting for the next container vehicle 14 to enter.
The invention has the beneficial effects that: the invention sets up the ray unit in the movable cabin, is used for producing the scanning ray in order to scan the container through the main beam of rays fast, because the ray has radioactivity to driver and surrounding environment, should avoid the direct irradiation to driver, and reduce the radiation time to the surrounding environment beyond container as far as possible, set up range finding sensor and box number recognition system in the appointed position for this purpose, according to the real-time displacement of container and length of container, judge the moment that the container front reaches the main beam direction of ray at this moment, and turn on the ray to scan, have realized the accurate scanning of the ray only to container part, and avoid the radiation to driver and less radiation pollution to surrounding environment reliably, while promoting the inspection efficiency, have guaranteed user's safety and environmental protection.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention;
fig. 2 is a schematic diagram of the ranging principle of the present invention.
Reference numerals illustrate: 1. traffic lights; 2. a gate; 3. an inlet photoelectric switch; 4. a ranging sensor; 5. a box number identification system; 6. a track; 7. a first light curtain; 8. a second light curtain; 9. a movable nacelle and a boom; 10. a ray unit; 11. a microcomputer control unit; 12. an outlet photoelectric switch; 13. checking the channel; 14. a container vehicle.
Detailed Description
One embodiment of the present invention will be described in detail with reference to fig. 1, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1, the present invention provides a container vehicle detection system including an inspection tunnel 13, further including: the movable cabin and arm support 9, the ray unit 10, the ranging sensor 4, the box number identification system 5 and the microcomputer control unit 11; the movable cabin and the arm support 9 are arranged on the tracks 6 arranged on the two sides of the inspection channel 13, the arm support of the movable cabin and the arm support 9 consists of a vertical arm and a cross beam, wherein the cross beam connects the movable cabin of the movable cabin and the arm support 9 and the vertical arm at the top to form a door-shaped integral structure, and the bottom of the movable cabin and the vertical arm of the door-shaped integral structure is provided with rollers and a driving device to form the movable cabin and the arm support 9, and the movable cabin and the arm support 9 can move left and right along the tracks 6; the ray unit 10 is installed in the movable cabin and is used for emitting scanning rays and scanning and detecting the container vehicle 14 reaching a preset position; the distance measuring sensor 4 is arranged at the entrance of the inspection channel and faces the exit end of the inspection channel, and is used for measuring the real-time displacement of the vehicle-mounted container entering the inspection channel 13; the bin number identification system 5 is arranged in a designated area between the entrance of the inspection channel 13 and the ray unit 10 and is used for extracting the container bin number and the container specification length information before the container vehicle 14 reaches the scanning detection position; the microcomputer control unit 11 is installed in the movable cabin, and is respectively connected to the ranging sensor 4, the case number identification system 5 and the ray unit 10 in a signal manner, and is used for controlling the ray unit 10 to emit scanning rays when the vehicle-mounted container displacement measured by the ranging sensor 4 plus the container length acquired by the case number identification system 5 is equal to a preset distance. The microcomputer control unit 11 calculates the radiation emission time according to the real-time displacement and length of the container 14, and when judging that the front edge of the container 14 reaches the position of the main beam direction of the radiation, the microcomputer control unit 11 controls the radiation unit 10 to generate radiation to scan the container 14 only so as to avoid directly irradiating the areas outside the driver and the container 14.
Further, the system also comprises a first light curtain 7 and a second light curtain 8, wherein the first light curtain 7 is connected to the microcomputer control unit 11 in a signal way and is arranged on the entering side of the movable cabin surface (channel side) for detecting whether the container approaches a scanning area; the second light curtain 8 is connected to the microcomputer control unit 11, is installed on the entrance side of the movable cabin surface (the passage side), and is located between the first light curtain 7 and the main beam of the ray unit 10 and is close to the main beam, so as to confirm whether the container detected by the first light curtain 7 is the same container in the scanning area. The first light curtain 7 and the second light curtain 8 are used for confirming the travelling position of the vehicle, when the travelling position of the vehicle reaches the first light curtain 7, the microcomputer control unit 11 starts to record the moment when the first light curtain 7 and the second light curtain 8 are triggered in sequence and the real-time displacement of the container 14 corresponding to the moment respectively, and the system determines whether the vehicle is parked in a channel, backed up, mistakenly triggered or not according to the two triggering moments and displacement data.
Further, the microcomputer control unit 11 compares the real-time displacement difference values of the sequential triggering moments of the first light curtain 7 and the second light curtain 8 with the installation distance between the first light curtain 7 and the second light curtain 8, judges whether the measurement error of the ranging sensor 4 is in an allowable range, and controls the ray unit 10 to emit scanning rays when the detection error is in the allowable range; the microcomputer control unit 11 detects whether the speed of the container vehicle 14 reaches a preset speed threshold according to the triggering time interval of the first light curtain 7 and the second light curtain 8, and controls the ray unit 10 to emit scanning rays when the detected speed reaches the speed threshold.
Further, when the error of the comparison between the displacement difference value of the light curtain one 7 and the light curtain two 8 in turn triggering time and the actual installation interval is larger than a preset value, the microcomputer control unit 11 controls the ray unit 10 to stop emitting scanning rays; and when the sequential triggering time interval of the first light curtain 7 and the second light curtain 8 is larger than the preset time interval, the microcomputer control unit 11 controls the ray unit 10 to stop emitting scanning rays.
Further, the first light curtain 7 and the second light curtain 8 are triggered simultaneously, and when the displacement of the vehicle-mounted container 14 measured by the ranging sensor 4 plus the length of the container acquired by the container number identification system 5 is equal to a preset distance, the microcomputer control unit 11 controls the ray unit 10 to emit scanning rays. In this embodiment, when the two light curtains 7, 8 are triggered simultaneously and the real-time displacement of the container 14 plus the length of the container is equal to the preset distance, the microcomputer control unit 11 determines that the vehicle is abnormal if the real-time displacement of the container 14 is calculated to be abnormal such as parking, reversing, etc., stops the ray scanning and gives an alarm to prompt the attendant.
Further, the intelligent vehicle inspection system also comprises an entrance photoelectric switch 3, a gate 2 and a traffic light 1, wherein the entrance photoelectric switch 3 is connected to the microcomputer control unit 11 in a signal manner and is arranged at the entrance of the inspection channel 13 for detecting whether a vehicle is driven in; the gate 2 is in signal connection with the microcomputer control unit 11, the gate 2 is arranged on the upstream side of the entrance photoelectric switch 3 and adjacent to the entrance photoelectric switch 3, the gate 2 is used for stopping the following vehicles from entering after the entrance photoelectric switch 3 detects that the vehicles completely enter the inspection channel 13, and the vehicles in the inspection channel 13 are guaranteed to be unique; the traffic light 1 is connected to the microcomputer control unit 11, is arranged on the outer side of the entrance of the inspection channel 13 and faces the vehicle coming direction, and is used for guiding the vehicle to travel, and after the entrance photoelectric switch 13 detects that the vehicle is driven into the inspection channel 13, a red light is turned on to prohibit the following vehicle from continuously driving into.
Further, the rails 6 are disposed at two sides of the inspection channel 13, and a distance is provided between the rails and the entrance of the inspection channel 13, that is, a distance is provided between the rails and the entrance of the inspection channel 13, the rails 6 carry the movable cabin and the arm support 9 to move left and right along the inspection channel 13, so as to adjust the preset distance between the ray unit 10 and the ranging sensor 4 according to the type of the container vehicle 14 inspected by the user.
Further, the inspection system further comprises an exit photoelectric switch 12, wherein the exit photoelectric switch 12 is connected to the microcomputer control unit 11 in a signal mode, is arranged at the exit end of the inspection channel 13, is at a specified distance from the track 6, and is used for detecting whether the container vehicle 14 is driven out of the inspection channel 13.
Further, after the tail of the container vehicle 14 leaves the exit photoelectric switch 12, the microcomputer control unit 11 controls the gate stop lever of the gate 2 to lift up, and controls the traffic light 1 to light up a green light, waiting for the next container vehicle 14 to enter.
In the invention, a ray unit 10 is arranged in a movable cabin and a cabin of a cantilever crane 9 and is used for generating scanning rays to rapidly scan a container 14 passing through a ray main beam, as the rays have radioactivity to a driver and the surrounding environment, the direct irradiation to the driver is avoided, and the radiation time to the surrounding environment outside the container is reduced as far as possible, for this purpose, a ranging sensor 4 is arranged at the entrance of an inspection channel 13 to detect the real-time displacement of the container 14, a box number identification system 5 is arranged at a designated position between the entrance of the inspection channel 13 and the ray unit 10 and is used for extracting the length of the container 14 before the container 14 reaches the scanning main beam, and when a microcomputer control unit 11 judges that the real-time displacement of the container 14 plus the length of the container 14 is greater than or equal to a preset distance (the distance between the ranging sensor 4 and the main beam direction of the ray unit 10), namely, the front edge of the container 14 reaches the ray main beam direction, the part (a cab and the driver) except the container 14 is indicated to have driven through the ray main beam to be in a safe area, the microcomputer control unit 11 is used for controlling the ray unit 10 to emit the scanning rays, so that the scanning rays are accurately scanned to the container 14, the radiation is more safe to the container 14, the radiation is prevented from polluting the surrounding environment, and the environment is reliably protected, and the pollution to the driver is prevented from being caused to the user.
The invention sets up the ray unit in the movable cabin, is used for producing the scanning ray in order to scan the container through the main beam of rays fast, because the ray has radioactivity to driver and surrounding environment, should avoid the direct irradiation to driver, and reduce the radiation time to the surrounding environment beyond container as far as possible, set up range finding sensor and box number recognition system in the appointed position for this purpose, according to the real-time displacement of container and length of container, judge the moment that the container front reaches the main beam direction of ray at this moment, and turn on the ray to scan, have realized the accurate scanning of the ray only to container part, and avoid the radiation to driver and less radiation pollution to surrounding environment reliably, while promoting the inspection efficiency, have guaranteed user's safety and environmental protection.
Fig. 2 shows a schematic diagram of a container vehicle detection system according to an embodiment of the invention.
As shown in fig. 2, the preset length A1 is the distance between the ranging sensor 4 and the main beam direction of the ray unit 10. The movable cabin and the arm rest 9 can walk left and right on the track 6, so that a user can adjust A1 according to the type of the detected vehicle. The preset length A2 is the installation distance between the first light curtain 7 and the second light curtain 8.
In the initial state, no container vehicle exists in the detection channel 13, the traffic light 1 lights up a green light, the gate 2 is lifted up, and the container vehicle is waited to drive in.
When a container vehicle enters the inspection channel 13, the entrance photoelectric switch 3 is triggered to be interrupted, the microcomputer control unit 11 controls the traffic light 1 to light a red light, when the tail of the container vehicle leaves the entrance photoelectric switch 3, the microcomputer control unit 11 controls the gate 2 to drop a gear rod, so that the container vehicle in the inspection channel 13 is ensured to be unique, and the microcomputer control unit 11 starts the ranging sensor 4 and the case number identification system 5.
The container vehicle travels forward along the inspection tunnel 13, and the distance measuring sensor 4 detects the displacement S of the container (tail) in real time.
When a vehicle of the container 14 passes through the box number recognition system 5 along the inspection passage 13, the microcomputer control unit 11 extracts specification length information by image recognition, and obtains the length L of the container 14.
The container vehicle continues to travel along the inspection tunnel 13 and when the container 14 vehicle reaches the first light curtain 7, the microcomputer control unit 11 initiates the system flow and algorithm.
The microcomputer control unit 11 sequentially records the time when the vehicle of the container 14 arrives at the first light curtain 7 and the second light curtain 8 and the real-time displacement of the container 14 corresponding to the time. Acquiring the vehicle speed through the sequential triggering time interval and the installation interval of the two light curtains, and when the vehicle speed is judged to be lower than the minimum allowable vehicle speed, not allowing the system to scan the beam; calculating the distance measurement error of the distance measurement sensor 4 through the real-time displacement difference value (compared with the installation distance of the two light curtains) of the container 14 measured twice, and when the distance measurement error is judged to be larger than the allowable error, the system does not allow beam scanning;
the container vehicle continues to run along the inspection channel 13, when S is more than or equal to A1-L (namely the front edge of the container 14 reaches the position of the main beam of rays), and the first light curtain 7 and the second light curtain 8 are blocked, the microcomputer control unit 11 controls the ray unit 10 to generate rays, and the container 14 is started to be scanned in a beam-out mode.
During the beam-out scanning of the ray unit 10, the trigger signal of the second light curtain 8 must be kept all the time, otherwise, the ray unit 10 should stop the beam-out scanning immediately;
after the microcomputer control unit 11 starts the system flow and algorithm, according to the real-time displacement of the container measured by the ranging sensor 4, judging whether the vehicle has abnormal conditions such as parking, reversing, false triggering and the like, and when the abnormal conditions are judged, the ray unit 10 should stop beam-out scanning immediately;
the container vehicle continues to run along the inspection channel 13, and when S is more than or equal to A1, namely the tail of the container 14 is away from the position of the main beam of rays, the microcomputer control unit 11 controls the ray unit 10 to stop beam-out scanning.
The container vehicle continues to run along the inspection channel 13, when the exit photoelectric switch 12 detects that the tail of the container 14 leaves the scanning area, the scanning is completed, the gate 2 is lifted, the traffic light 1 lights up a green light, and the container vehicle waits for entering.
In summary, the present invention provides a container vehicle inspection system, a ray unit is disposed in a movable cabin, for generating scanning rays to rapidly scan a container passing through a ray main beam, since the rays have radioactivity to a driver and the surrounding environment, direct irradiation to the driver should be avoided, and the radiation time to the surrounding environment outside the container should be reduced as far as possible, for this purpose, a ranging sensor is disposed at an entrance of an inspection channel to detect real-time displacement of the container, a case number recognition system is disposed in an area between the entrance of the inspection channel and the ray unit, for extracting the length of the container before the container reaches the scanning main beam, when a microcomputer control unit determines that the real-time displacement of the container plus the length of the container is greater than or equal to a preset distance (the distance between the ranging sensor and the direction of the ray main beam), i.e., the front edge of the container reaches the direction of the ray main beam, indicating that the part outside the container (a cab, the driver) has driven the ray main beam is in a safe area, at this time, the microcomputer control unit controls the ray unit to emit the scanning rays, thereby realizing accurate scanning of the container only, and reliable avoidance of the radiation to the container, and less pollution to the environment and environmental pollution to the driver, and the inspection efficiency to be ensured at the same time.
The foregoing disclosure is merely illustrative of some embodiments of the invention, but the embodiments are not limited thereto and variations within the scope of the invention will be apparent to those skilled in the art.
Claims (3)
1. Container vehicle detection system comprising an inspection tunnel (13), characterized in that it further comprises:
the movable cabin and the arm support (9) are arranged on rails (6) arranged on two sides of the inspection channel (13), the arm support of the movable cabin and the arm support (9) consists of a vertical arm and a cross beam, the cross beam connects the movable cabin of the movable cabin and the arm support (9) and the vertical arm at the top to form a door-shaped structure, and rollers and driving devices are arranged at the bottoms of the movable cabin and the vertical arm and can move left and right along the rails (6);
a ray unit (10), wherein the ray unit (10) is installed in the movable cabin and is used for emitting scanning rays and scanning and detecting a container vehicle (14) reaching a preset position;
the distance measuring sensor (4) is arranged at the inlet of the inspection channel and faces the outlet end of the inspection channel, and is used for measuring the real-time displacement of the vehicle-mounted container entering the inspection channel (13);
a bin number identification system (5), the bin number identification system (5) being mounted in an area between the entrance of the inspection tunnel (13) and the ray unit (10) for extracting a container bin number, container specification length information before a container vehicle (14) reaches a scanning detection position;
the microcomputer control unit (11) is arranged in the movable cabin, is respectively connected to the distance measuring sensor (4), the box number identification system (5) and the ray unit (10) in a signal mode, and is used for controlling the ray unit (10) to emit scanning rays when the vehicle-mounted container displacement measured by the distance measuring sensor (4) and the length of the container acquired by the box number identification system (5) are equal to a preset distance;
a first light curtain (7), wherein the first light curtain (7) is connected to the microcomputer control unit (11) in a signal manner, is arranged on the driving-in side of the surface of the movable cabin and is used for detecting whether a container approaches a scanning area;
a second light curtain (8) which is connected to the microcomputer control unit (11) in a signal manner, is arranged on the entering side of the surface of the movable cabin, is positioned between the first light curtain (7) and the main beam of the ray unit (10) and is close to the main beam, and is used for confirming whether the container detected by the first light curtain (7) is the same container in a scanning area or not;
an entrance photoelectric switch (3), wherein the entrance photoelectric switch (3) is connected to the microcomputer control unit (11) in a signal manner and is arranged at the entrance of the inspection channel (13) for detecting whether a vehicle enters or not;
the gate (2) is in signal connection with the microcomputer control unit (11), the gate (2) is arranged on the upstream side of the entrance photoelectric switch (3) and adjacent to the entrance photoelectric switch (3), the gate (2) is used for stopping a subsequent vehicle from entering after the entrance photoelectric switch (3) detects that the vehicle completely enters the inspection channel (13), and the gate stop lever of the gate drops to ensure that the vehicle in the inspection channel (13) is unique;
the traffic light (1) is in signal connection with the microcomputer control unit (11), is arranged on the outer side of an entrance of the inspection channel (13), faces the coming direction and is used for guiding vehicles to travel, and after the entrance photoelectric switch (13) detects that the vehicles enter the inspection channel (13), the red light is turned on to prohibit the following vehicles from continuously entering;
the microcomputer control unit (11) judges whether the measurement error of the ranging sensor (4) is in an allowable range or not according to the real-time displacement difference value comparison of the sequential triggering moments of the first light curtain (7) and the second light curtain (8) and the installation distance of the first light curtain (7) and the second light curtain (8), and controls the ray unit (10) to emit scanning rays when the detection error is in the allowable range; the microcomputer control unit (11) detects whether the speed of the container vehicle (14) reaches a preset speed threshold according to the triggering time interval of the first light curtain (7) and the second light curtain (8), and controls the ray unit (10) to emit scanning rays when the detected speed reaches the speed threshold; when the error of the comparison between the displacement difference value of the sequential triggering time of the first light curtain (7) and the second light curtain (8) and the actual installation interval is larger than a preset value, the microcomputer control unit (11) controls the ray unit (10) to stop emitting scanning rays; the microcomputer control unit (11) controls the ray unit (10) to stop emitting scanning rays when the sequential triggering time interval of the first light curtain (7) and the second light curtain (8) is larger than a preset time interval; the first light curtain (7) and the second light curtain (8) are triggered simultaneously, and when the displacement of the vehicle-mounted container (14) measured by the ranging sensor (4) and the length of the container acquired by the container number identification system (5) are equal to a preset distance, the microcomputer control unit (11) controls the ray unit (10) to emit scanning rays;
the track (6) is arranged on two sides of the inspection channel (13), a distance is arranged between the track and an inlet of the inspection channel (13), the track (6) carries a movable cabin and a cantilever crane (9) to move left and right along the inspection channel (13), and the track is used for adjusting a preset distance between the ray unit (10) and the ranging sensor (4) according to the type of a container vehicle (14) inspected by a user.
2. The container vehicle inspection system of claim 1, further comprising:
and an exit photoelectric switch (12), wherein the exit photoelectric switch (12) is connected to the microcomputer control unit (11) in a signal manner, is arranged at the exit end of the inspection channel (13), is at a specified distance from the track (6), and is used for detecting whether the container vehicle (14) is driven away from the inspection channel (13).
3. The container vehicle inspection system according to claim 2, wherein after the tail of the container vehicle (14) leaves the exit photoelectric switch (12), the microcomputer control unit (11) controls the gate stop lever of the gate (2) to lift up, and controls the traffic light (1) to illuminate a green light to wait for the next container vehicle (14) to drive in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345909.4A CN106969715B (en) | 2017-05-17 | 2017-05-17 | Container vehicle inspection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107228868A (en) * | 2017-06-29 | 2017-10-03 | 北京君和信达科技有限公司 | Radiation checking system and radiation testing method |
| RU2668508C1 (en) * | 2017-12-14 | 2018-10-01 | Общество с ограниченной ответственностью "ИСБ.А" (ООО "ИСБ.А") | Load and self-propelled vehicle screening system, and method of automatic radioscopic control of moving objects for determination of a radiation scanning area in system of planning |
| DE102018210346A1 (en) * | 2018-06-26 | 2020-01-02 | Zf Friedrichshafen Ag | System and method for determining a lateral offset of a swap body in relation to a vehicle |
| CN109188544B (en) * | 2018-09-17 | 2021-05-11 | 重庆日联科技有限公司 | Vehicle detection system |
| CN109917479A (en) * | 2019-04-09 | 2019-06-21 | 同方威视技术股份有限公司 | Vehicle inspection method, apparatus, system and computer readable storage medium |
| CN112433259B (en) * | 2019-08-09 | 2022-09-13 | 同方威视技术股份有限公司 | Movable inspection device |
| CN113805193A (en) * | 2020-05-29 | 2021-12-17 | 清华大学 | Anti-false triggering method of back scattering robot, back scattering robot and path planning method |
| CN111753734A (en) * | 2020-06-24 | 2020-10-09 | 深圳中集智能科技有限公司 | Container number identification system, identification method and electronic equipment |
| CN113917480A (en) * | 2021-10-20 | 2022-01-11 | 中广核贝谷科技有限公司 | Vehicle head avoiding system based on laser radar and vehicle head identification method |
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