Dangerous goods vehicle detection system

Abstract

The utility model discloses a dangerous goods vehicle detection system, and relates to the technical field of goods transportation detection, the dangerous goods vehicle detection system comprises a ground, the upper end of the ground is provided with a drag chain groove; in the use process of the detection system, the movement of a portal frame from an original position to an ending position is called forward movement, the detection system starts at a low speed, gradually accelerates to a high speed and continuously moves towards a forward movement stopping position sensor, and when the detection system reaches a forward movement deceleration position, the detection system is triggered by the forward movement deceleration position sensor, and the portal frame gradually decelerates to the low speed; when the gantry reaches the forward movement stop position, the sensor corresponding to the forward movement stop position is triggered, the frequency converter stops outputting, the driving motor slows down and stops, the gantry stops, the speed can be reduced to a low speed in advance, the braking distance can be shortened, and the cost of sites, guide rails and the like is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo transportation detection, in particular to a dangerous goods vehicle detection system. Background Art

[0002] Highway freight transportation is a basic and leading industry for economic and social development, and is also one of the two basic modes of land transportation;

[0003] The transportation industry plays an increasingly important role. The whole process of transporting dangerous goods by road using trucks is called road dangerous goods transportation, which is an important factor affecting the safe operation of roads. The "Regulations on the Management of Road Transport of Dangerous Goods" issued by the Ministry of Transport clearly stipulates the management regulations for dangerous goods, dangerous goods transport vehicles and units and individuals engaged in related work. However, the actual situation is that some road transport personnel are lucky enough to engage in dangerous goods transportation work without following the regulations. For this reason, the utility model proposes a dangerous goods vehicle detection system, which quickly scans the vehicle through high-energy rays to confirm whether the vehicle is loaded with dangerous goods. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dangerous goods vehicle detection system, which solves the problems in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a dangerous goods vehicle detection system, including a ground, a drag chain groove is opened at the upper end of the ground, a track foundation is laid at the bottom of the ground, a track is arranged at the upper end of the ground, a limit stopper is arranged at the upper end of the track, a forward movement deceleration position sensor, a forward movement stop position sensor, a reverse movement deceleration position sensor and a reverse movement stop position sensor are arranged at the upper end of the track, and a gantry is arranged at the upper end of the ground;

[0006] A driving wheel is arranged at the bottom of the gantry, a frequency converter and a driving motor are arranged inside the gantry, and the output end of the driving motor is connected to the driving wheel, a No. 1 light curtain sensor and a No. 2 light curtain sensor are arranged on the inner side of the gantry, and a radiation detector and a 3 / 6Mev linear accelerator are arranged inside the gantry.

[0007] As a further technical solution of the utility model, a control circuit board is arranged inside the gantry, wherein a data acquisition processing module and a control system are arranged inside the control circuit board, and the No. 1 light curtain sensor and the No. 2 light curtain sensor are electrically connected to the control circuit board.

[0008] As a further technical solution of the utility model, the number of the track foundations is three groups and distributed in an array, the number of the tracks is equal to the number of the track foundations, and the tracks and the track foundations are connected by bolts, the number of the limit blocks is twice the number of the tracks, and anti-collision blocks are installed on the outside of the door frame.

[0009] As a further technical solution of the utility model, the forward moving deceleration position sensor and the forward moving stop position sensor are both connected to the track by bolts, and the forward moving deceleration position sensor and the forward moving stop position sensor are both electrically connected to the control circuit board.

[0010] As a further technical solution of the utility model, the reverse movement deceleration position sensor and the reverse movement stop position sensor are both connected to the track by bolts, and the reverse movement deceleration position sensor and the reverse movement stop position sensor are both electrically connected to the control circuit board.

[0011] As a further technical solution of the utility model, the output end of the drive motor is connected to the drive wheel, and the drive motor is electrically connected to the control circuit board, the No. 1 light curtain sensor and the No. 2 light curtain sensor are both electrically connected to the control circuit board, and the radiation detector and the 3 / 6Mev linear accelerator are both electrically connected to the control circuit board.

[0012] The utility model provides a dangerous goods vehicle detection system. Compared with the prior art, it has the following advantages:

[0013] Beneficial effects:

[0014] A dangerous goods vehicle detection system. During the use of the detection system, the drive motor inside the gantry drives the drive wheel to move along the upper end of the track. The movement from the original position to the end position is called forward movement. It starts at a low speed, gradually accelerates to a high speed, and continues to move toward the forward movement stop position sensor. When it reaches the forward movement deceleration position, the forward movement deceleration position sensor is triggered, and the gantry gradually decelerates to a low speed. When the gantry reaches the forward movement stop position, the corresponding forward movement stop position sensor is triggered, the frequency converter stops output, the drive motor decelerates and stops, and the gantry stops; the same is true for reverse movement. The advantage is that the gantry is more stable when started and stopped at a low speed. The high speed is used during scanning to reduce the scanning detection time. The gantry movement distance corresponding to the time from the frequency converter stopping output to the drive motor decelerating and stopping is the braking distance. Slowing down to a low speed in advance can shorten the braking distance and save the cost of site, guide rails, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a dangerous goods vehicle detection system;

[0016] Figure 2is a side sectional view of a dangerous goods vehicle detection system;

[0017] Figure 3 is a side sectional view of a dangerous goods vehicle detection system;

[0018] Figure 4 A diagram of a gantry moving detection vehicle in a dangerous goods vehicle detection system;

[0019] Figure 5 This is a picture after the gantry movement detection in a dangerous goods vehicle detection system is completed.

[0020] In the figure: 1. Ground; 2. Drag chain groove; 3. Track foundation; 4. Track; 5. Limit block; 6. Forward movement deceleration position sensor; 7. Forward movement stop position sensor; 8. Reverse movement deceleration position sensor; 9. Reverse movement stop position sensor; 10. Gantry; 11. Driving wheel; 12. No. 1 light curtain sensor; 13. No. 2 light curtain sensor; 14. X-ray detector; 15. 3 / 6Mev linear accelerator. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution for a dangerous goods vehicle detection system: a dangerous goods vehicle detection system, comprising a ground 1, a drag chain groove 2 is provided at the upper end of the ground 1, a track foundation 3 is laid at the bottom of the ground 1, a track 4 is provided at the upper end of the ground 1, a limited stopper 5 is provided at the upper end of the track 4, a forward movement deceleration position sensor 6, a forward movement stop position sensor 7, a reverse movement deceleration position sensor 8 and a reverse movement stop position sensor 9 are provided at the upper end of the track 4, and a gantry 10 is provided at the upper end of the ground 1;

[0023] Among them, a driving wheel 11 is arranged at the bottom of the gantry 10, a frequency converter and a driving motor are arranged inside the gantry 10, and the output end of the driving motor is connected to the driving wheel 11, a No. 1 light curtain sensor 12 and a No. 2 light curtain sensor 13 are arranged on the inner side of the gantry 10, and a radiation detector 14 and a 3 / 6Mev linear accelerator 15 are arranged inside the gantry 10.

[0024] See also Figure 1-5A control circuit board is arranged inside the gantry 10, wherein a data acquisition module is arranged inside the control circuit board, the first light curtain sensor 12 and the second light curtain sensor 13 are electrically connected to the control circuit board, the number of track foundations 3 is three groups and distributed in an array, the number of tracks 4 is equal to the number of track foundations 3, and the tracks 4 and the track foundations 3 are connected by bolts, the number of limit blocks 5 is twice the number of tracks 4, and anti-collision blocks are installed on the outside of the gantry 10, so as to facilitate the anti-collision of the gantry 10, avoid direct collision between the gantry 10 and the limit blocks 5, and improve the collision resistance.

[0025] See also Figure 1-5 The forward movement deceleration position sensor 6 and the forward movement stop position sensor 7 are both connected to the track 4 by bolts, and the forward movement deceleration position sensor 6 and the forward movement stop position sensor 7 are both electrically connected to the control circuit board, the reverse movement deceleration position sensor 8 and the reverse movement stop position sensor 9 are both connected to the track 4 by bolts, and the reverse movement deceleration position sensor 8 and the reverse movement stop position sensor 9 are both electrically connected to the control circuit board, so as to timely detect the position of the door frame 10, and control the corresponding drive motor to accelerate and decelerate through the frequency converter, the output end of the drive motor is connected to the drive wheel 11, and the drive motor is electrically connected to the control circuit board, the No. 1 light curtain sensor 12 and the No. 2 light curtain sensor The sensors 13 are electrically connected to the control circuit board, and the radiation detectors 14 and the 3 / 6Mev linear accelerator 15 are electrically connected to the control circuit board. The drive motor inside the gantry 10 drives the drive wheel 11 to move along the upper end of the track 4. The movement from the original position to the end position is called forward movement. It starts at a low speed (the inverter outputs 15Hz to the drive motor), gradually accelerates to a high speed (50Hz), and continues to move toward the forward movement stop position sensor 7. When it reaches the forward movement deceleration position, it is triggered by the forward movement deceleration position sensor 8, and the gantry 10 gradually decelerates to a low speed. When the gantry 10 reaches the forward movement stop position, the corresponding forward movement stop position sensor 7 is triggered, the inverter stops output, the drive motor decelerates and stops, and the gantry 10 stops.

[0026] The working principle of the utility model is as follows: during the vehicle detection process, the driving motor drives the driving wheel 11 to move along the track 4, and at the same time drives the gantry 10 to move, so that the No. 1 light curtain sensor 12 and the No. 2 light curtain sensor 13 pass the vehicle in sequence, and the 3 / 6Mev linear accelerator 15 is used as a ray source to provide high-energy rays to penetrate the vehicle to scan the goods in the vehicle. After the vehicle stops in the detection area and all the people in the vehicle leave the detection area, the detection system gantry 10 moves as a whole;

[0027] After the No. 1 light curtain sensor 12 on the gantry 10 triggers the rising edge, the rays are emitted. After the rays are emitted from the emitting end of the gantry 10, they penetrate the vehicle and are emitted to the receiving end ray detector 14 on the other side of the gantry 10. The ray detector 14 converts the rays into electrical signals and outputs them to the data acquisition processing module and control system in the control circuit board for processing;

[0028] When the gantry 10 continues to move and sweeps across the rear of the vehicle, the No. 2 light curtain sensor 13 triggers a falling edge signal, the ray stops emitting, the gantry 10 moves to the end position and the sensor stops moving, the data acquisition and processing module and the control system synthesize the scanned image and send it to the inspector for confirmation. The inspector can confirm whether the inspected vehicle is loaded with dangerous goods based on information such as the cargo loading situation, the shape of the cargo container, and the solid / liquid capacity and position in the container.

[0029] If necessary, Figure 4 It can be seen that the gantry 10 moves forward, the No. 1 light curtain sensor 12 triggers the rising edge (the front of the vehicle approaches the ray scanning area), the ray source 3 / 6Mev linear accelerator 15 emits rays, the gantry 10 continues to move, and the rays scan the vehicle.

[0030] If necessary, Figure 5 It can be seen that the gantry 10 moves forward, the No. 2 light curtain sensor 13 triggers the falling edge (the rear end of the vehicle leaves the radiation scanning area), the radiation source 3 / 6Mev linear accelerator 15 stops the radiation, and the gantry 10 continues to move to the forward movement stop position sensor 7.

Claims

1. A dangerous goods vehicle detection system, comprising a ground (1), characterized in that: A drag chain groove (2) is provided at the upper end of the ground (1), a track foundation (3) is laid at the bottom of the ground (1), a track (4) is provided at the upper end of the ground (1), a limit stopper (5) is provided at the upper end of the track (4), a forward movement deceleration position sensor (6), a forward movement stop position sensor (7), a reverse movement deceleration position sensor (8) and a reverse movement stop position sensor (9) are provided at the upper end of the track (4), and a door frame (10) is provided at the upper end of the ground (1); A driving wheel (11) is arranged at the bottom of the gantry (10), a frequency converter and a driving motor are arranged inside the gantry (10), and an output end of the driving motor is connected to the driving wheel (11), a first light curtain sensor (12) and a second light curtain sensor (13) are arranged on the inner side of the gantry (10), and a radiation detector (14) and a 3 / 6Mev linear accelerator (15) are arranged inside the gantry (10).

2. A dangerous goods vehicle detection system according to claim 1, characterized in that: A control circuit board is arranged inside the door frame (10), wherein a data acquisition processing module and a control system are arranged inside the control circuit board, and the first light curtain sensor (12) and the second light curtain sensor (13) are both electrically connected to the control circuit board.

3. A dangerous goods vehicle detection system according to claim 1, characterized in that: The number of the track foundations (3) is three groups and they are distributed in an array, the number of the tracks (4) is equal to the number of the track foundations (3), and the tracks (4) and the track foundations (3) are connected by bolts, the number of the limit blocks (5) is twice the number of the tracks (4), and an anti-collision block is installed on the outer side of the door frame (10).

4. A dangerous goods vehicle detection system according to claim 2, characterized in that: The forward movement deceleration position sensor (6) and the forward movement stop position sensor (7) are both connected to the track (4) via bolts, and the forward movement deceleration position sensor (6) and the forward movement stop position sensor (7) are both electrically connected to the control circuit board.

5. A dangerous goods vehicle detection system according to claim 2, characterized in that: The reverse movement deceleration position sensor (8) and the reverse movement stop position sensor (9) are both connected to the track (4) via bolts, and the reverse movement deceleration position sensor (8) and the reverse movement stop position sensor (9) are both electrically connected to the control circuit board.

6. A dangerous goods vehicle detection system according to claim 2, characterized in that: The output end of the drive motor is connected to the drive wheel (11), and the drive motor is electrically connected to the control circuit board. The first light curtain sensor (12) and the second light curtain sensor (13) are both electrically connected to the control circuit board. The ray detector (14) and the 3 / 6Mev linear accelerator (15) are both electrically connected to the control circuit board.

Images