CN213338061U - Green channel vehicle inspection system - Google Patents
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- CN213338061U CN213338061U CN202022555359.9U CN202022555359U CN213338061U CN 213338061 U CN213338061 U CN 213338061U CN 202022555359 U CN202022555359 U CN 202022555359U CN 213338061 U CN213338061 U CN 213338061U
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Abstract
The application relates to a green channel vehicle inspection system, which is additionally provided with a radar device, transmits electromagnetic wave signals to vehicles entering a green channel through a radio frequency module of the radar device, receives reflected wave signals reflected by the vehicles, transmits the electromagnetic wave signals and the reflected wave signals to a signal processing module, transmits the electromagnetic wave signals and the reflected wave signals to a radar controller after being processed by the signal processing module, calculates the distance from the vehicles to the radar device through the radar controller, namely, the radar device can accurately know the time of each part of the vehicle, such as the head, the boundary of the head and the carriage, the tail and the like, entering a scanning area of a ray generating device, then reasonably sets a preset distance value, transmits a prompt signal to the ray generating device through a communication module when the vehicle reaches the preset distance value, and carries out ray scanning on the vehicles when receiving the prompt signal, the problem that part of the carriages are not scanned due to the fact that the ray generating device cannot be started timely can be avoided.
Description
Technical Field
The application relates to the technical field of green channel vehicle inspection, in particular to a green channel vehicle inspection system.
Background
According to the statistics of the past data, the annual scale of the national green traffic reduction and avoidance traffic cost is estimated to be about 300 billion yuan by the department of transportation, the probability of vehicle evasion entrainment is between 35% and 40% under the condition of no effective checking means, and the annual loss green traffic cost is estimated to be about 100 billion yuan. In this macroscopic context, it is obviously necessary to configure the inspection device. The existing inspection system mostly adopts the shutter technology to instantly switch on and off X-ray scanning, so that the problem that partial carriages are not scanned due to the fact that scanning equipment is not started in time or started too early easily occurs, vehicle missing detection is caused, and loss of traffic departments is caused.
SUMMERY OF THE UTILITY MODEL
To overcome, at least to some extent, the problems in the related art, the present application provides a green channel vehicle inspection system.
The scheme of the application is as follows:
a green channel vehicle inspection system comprising:
a radar device and a ray generation device group;
the radar apparatus includes: the system comprises a radio frequency module, a power supply module, a signal processing module, a radar controller and a first communication module;
each ray generation device in the ray generation device group comprises: the system comprises a ray generation module, a ray generation controller and a second communication module;
the radio frequency module is connected with the signal processing module, the radar controller is respectively connected with the power supply module, the signal processing module and the first communication module;
the ray generation controller is respectively connected with the ray generation module and the second communication module;
the first communication module is in communication connection with the second communication module;
the radio frequency module is used for transmitting an electromagnetic wave signal to a vehicle entering a green channel, receiving a reflected wave signal reflected by the vehicle, and sending the electromagnetic wave signal and the reflected wave signal to the signal processing module;
the signal processing module is used for performing frequency mixing processing on the electromagnetic wave signal and the reflected wave signal to generate an intermediate frequency signal and sending the intermediate frequency signal to the radar controller;
the radar controller is used for obtaining the distance between the vehicle and the radar device according to the intermediate frequency signal and controlling the first communication module to send a prompt signal to the second communication module when the distance reaches a preset distance value;
the second communication module is used for sending the prompt signal to the ray generation controller;
and the ray generation controller is used for controlling the ray generation module to carry out ray scanning on the vehicle when the prompt signal is received.
Preferably, in an implementable manner herein,
the radio frequency module includes: at least 2 sets of transmit antennas and at least 2 sets of receive antennas.
Preferably, in an implementable manner herein,
the radar apparatus further includes: a package housing;
the package housing includes: a metal housing and a plastic window;
the radio frequency module is arranged at the plastic window.
Preferably, in an implementable manner herein,
the electromagnetic wave emitted by the radio frequency module is millimeter wave.
Preferably, in an implementation manner of the present application, the method further includes: a first upright and a second upright;
the first upright post and the second upright post are respectively arranged on two sides of the green channel;
the ray generating device group comprises: a first ray generating device and a second ray generating device;
the first ray generating device is arranged at the bottom of the first upright column and scans the vehicle from bottom to top, and the second ray generating device is arranged at the top of the second upright column and scans the vehicle from top to bottom; or the like, or, alternatively,
the first ray generating device is arranged at the top of the first upright column and scans the vehicle from top to bottom, and the second ray generating device is arranged at the bottom of the second upright column and scans the vehicle from bottom to top.
Preferably, in an implementation manner of the present application, the method further includes: barrier equipment;
the barrier gate apparatus includes: the barrier gate and the barrier gate smash-proof induction machine;
the barrier gate device is arranged at the front end of the first upright post and the second upright post relative to the driving-in direction of the vehicle.
Preferably, in an implementable manner of the present application, the radar device is disposed at a rear end of the first pillar and the second pillar with respect to a vehicle entrance direction.
Preferably, in an implementation manner of the present application, the method further includes:
the driver near field exchange device and the driver far field exchange camera;
the driver near-field exchange device is arranged at the front end of the barrier gate equipment relative to the driving direction of the vehicle;
the driver far-field interaction camera is arranged on the first upright post or the second upright post.
Preferably, in an implementation manner of the present application, the method further includes:
an information prompt screen and a system signal lamp;
the information prompt screen is arranged at the front ends of the first upright post and the second upright post relative to the driving direction of the vehicle; a loudspeaker is configured on the information prompt screen;
the system signal lamp is arranged on the first upright post or the second upright post.
Preferably, in an implementation manner of the present application, the method further includes: a license plate recognition machine;
the license plate recognition machine includes: a vehicle head license plate recognition machine and a vehicle tail license plate recognition machine;
the vehicle head license plate recognition machine is arranged at the front end of the first upright post relative to the driving-in direction of the vehicle;
the vehicle tail license plate recognition machine is arranged at the front end of the second upright post relative to the driving direction of the vehicle.
The technical scheme provided by the application can comprise the following beneficial effects: the green channel vehicle inspection system in the application is additionally provided with the radar device, transmits electromagnetic wave signals to vehicles entering a green channel through the radio frequency module of the radar device, receives reflected wave signals reflected by the vehicles, transmits the electromagnetic wave signals and the reflected wave signals to the signal processing module, transmits the electromagnetic wave signals and the reflected wave signals to the radar controller after being processed by the signal processing module, calculates the distance from the vehicles to the radar device through the radar controller, namely, the radar device can accurately know the time of each part of the vehicle, such as the head, the boundary of the head and the carriage, the tail and the like, entering a scanning area of the ray generating device, then reasonably sets a preset distance value, transmits prompt signals to the ray generating device through the communication module when the vehicle reaches the preset distance value, and carries out ray scanning on the vehicles when receiving the prompt signals, the problem that part of the carriages are not scanned due to the fact that the ray generating device cannot be started timely can be avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a block diagram of a green channel vehicle inspection system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a green channel vehicle inspection system according to another embodiment of the present application.
Reference numerals: a radar device-1; a radio frequency module-11; a power supply module-12; a signal processing module-13; a radar controller-14; a first communication module-15; a ray generating device-2; a ray generation module-21; a radiation generation controller-22; a second communication module-23; a first upright-3; barrier equipment-4; a stop line to be detected of the green traffic vehicle-5; driver near field exchange-6; a far-field interactive camera-7 of a driver; an information prompt screen-8; a system signal lamp-9; a license plate recognition machine-10.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
A green channel vehicle inspection system, referring to fig. 1, comprising:
a radar device 1 and a ray generation device group;
the radar apparatus 1 includes: the system comprises a radio frequency module 11, a power supply module 12, a signal processing module 13, a radar controller 14 and a first communication module 15;
each radiation generating device 2 of the set of radiation generating devices comprises: a ray generation module 21, a ray generation controller 22 and a second communication module 23;
the radio frequency module 11 is connected with the signal processing module 13, and the radar controller 14 is respectively connected with the power supply module 12, the signal processing module 13 and the first communication module 15;
the ray generation controller 22 is respectively connected with the ray generation module 21 and the second communication module 23;
the first communication module 15 is in communication connection with the second communication module 23;
the radio frequency module 11 is configured to transmit an electromagnetic wave signal to a vehicle entering a green channel, receive a reflected wave signal reflected by the vehicle, and send the electromagnetic wave signal and the reflected wave signal to the signal processing module 13;
the signal processing module 13 is configured to perform frequency mixing processing on the electromagnetic wave signal and the reflected wave signal to generate an intermediate frequency signal, and send the intermediate frequency signal to the radar controller 14;
the radar controller 14 is configured to obtain a distance from the vehicle to the radar apparatus 1 according to the intermediate frequency signal, and control the first communication module 15 to send a prompt signal to the second communication module 23 when the distance reaches a preset distance value;
the second communication module 23 is used for sending a prompt signal to the ray generation controller 22;
the ray generation controller 22 is used for controlling the ray generation module 21 to perform ray scanning on the vehicle when receiving the prompting signal.
Preferably, the radar device 1 in the present application adopts a millimeter wave radar device 1, and the electromagnetic wave emitted by the radio frequency module 11 is a millimeter wave.
The millimeter wave radar apparatus 1 is a device that is mature in the prior art and is used to detect the radar distance from each part of an object. The millimeter wave radar is adopted, the precision can reach the centimeter level, so that the boundary outline of the detected vehicle can be accurately identified, the position of the boundary of the front end of the vehicle head, the boundary of the vehicle head and the vehicle compartment and the boundary of the vehicle tail can be further identified, and the time when the boundary of the vehicle head, the vehicle head and the vehicle compartment enters the scanning area and the time when the vehicle tail exits the scanning area can be accurately obtained.
The radar apparatus 1 in this embodiment transmits an electromagnetic wave signal to a vehicle entering a green channel through the radio frequency module 11, receives a reflected wave signal reflected by the vehicle, and also transmits the electromagnetic wave signal and the reflected wave signal to the signal processing module 13.
The signal processing module 13 performs mixing processing on the electromagnetic wave signal and the reflected wave signal to generate an intermediate frequency signal. And transmits the processed intermediate frequency signal to the radar controller 14.
The radar controller 14 includes an operation module therein, and the time when each part of the vehicle, such as the vehicle head, the vehicle head and carriage boundary, the vehicle tail, etc., enters the scanning area of the ray generation device 2, that is, the distance between each part of the vehicle and the radar device 1 can be accurately known through operation according to the intermediate frequency signal.
Preferably, the preset distance value is a ray scanning range of the vehicle head passing through the ray generating device group, and when the carriage just enters the ray scanning range of the ray generating device group. At the moment, the radar device 1 sends a prompt signal to the ray generating device group, and the ray generating device group scans the carriages of the vehicle, so that the risk of radiation to a driver in a cab of the locomotive is avoided, and the problem that partial carriages are not scanned due to the fact that the ray generating device 2 cannot be started in time is also avoided.
Preferably, the radiation generating device 2 is an X-ray generating device 2, which can emit X-rays, but is not limited to, by a novel carbon nanotube X-ray source.
Preferably, the first communication module 15 and the second communication module 23 are wireless communication modules.
Preferably, in this embodiment, a partial image of the complete penetration image obtained by the radiation generating device 2 is captured and analyzed, and whether the articles inside belong to green fresh agricultural products or are entrained is determined. If the interior of the vehicle compartment is full, the interior of the vehicle compartment can not penetrate through the compartment as a whole, the obtained image is fuzzy and cannot be effectively distinguished, and only a local image, such as image data of one corner, is intercepted, so that the local image can completely penetrate through the compartment, the internal structure can be clearly seen, and the material distinguishing is facilitated.
The green channel vehicle inspection system in some embodiments,
the radio frequency module 11 includes: at least 2 sets of transmit antennas and at least 2 sets of receive antennas.
In the embodiment, the multiple-transmitting and multiple-receiving array antenna is adopted, so that the relative distance and angle of the measured object relative to the radar can be accurately identified.
The green channel vehicle inspection system in some embodiments,
the radar apparatus 1 further includes: a package housing;
the package housing includes: a metal housing and a plastic window;
the radio frequency module 11 is arranged at the plastic window.
The radar device 1 in this embodiment further includes a package casing, and the metal package casing can effectively block high-energy rays from irradiating the circuit board, resulting in damage to electronic components.
The plastic window adopts proper size, so that the circuit board is prevented from being irradiated by high-energy rays as much as possible, electromagnetic waves emitted by the radio frequency module 11 can pass through the plastic window, and the size of the plastic window is obtained according to a calculation formula:
>＝2*d*sin(φ/2)
wherein d is the distance between the radar antenna and the window, and phi is the radar detection angle.
The green channel vehicle inspection system in some embodiments, with reference to fig. 2, further comprises: a first upright 3 and a second upright;
the first upright post 3 and the second upright post are respectively arranged at two sides of the green channel;
the radiation generating device set comprises: a first radiation generating device 2 and a second radiation generating device 2;
the first ray generating device 2 is arranged at the bottom of the first upright post 3 and scans the vehicle from bottom to top, and the second ray generating device 2 is arranged at the top of the second upright post and scans the vehicle from top to bottom; or the like, or, alternatively,
the first ray generating device 2 is arranged at the top of the first upright post 3 and scans the vehicle from top to bottom, and the second ray generating device 2 is arranged at the bottom of the second upright post and scans the vehicle from bottom to top.
In the present embodiment, the first column 3 and the second column are provided to mount the first radiation generating device 2 and the second radiation generating device 2, respectively.
The two ray generating devices 2 are arranged on the two sides of the green channel and respectively arranged at the tops and the bottoms of the two stand columns, so that the vehicle is scanned from top to bottom and from bottom to top, and the obtained image is more accurate.
Preferably, referring to fig. 2, the first upright 3 and the second upright are further provided at the top ends thereof with site monitoring cameras for monitoring the site conditions of the green channel.
The green channel vehicle inspection system in some embodiments, with reference to fig. 2, further comprises: a barrier device 4;
the barrier gate apparatus 4 includes: the barrier gate and the barrier gate smash-proof induction machine;
the barrier gate device 4 is provided at the front ends of the first pillar 3 and the second pillar with respect to the vehicle entrance direction.
The banister is used for blockking the vehicle when putting down and passes through, and banister prevents pounding the inductor and is used for protecting the banister.
The barrier equipment 4 is arranged at the front ends of the first upright post 3 and the second upright post relative to the driving-in direction of the vehicle, so that the vehicle is conveniently blocked in front of the ray generating device 2 for scanning.
And a stop line 5 for green traffic vehicles to be checked is further arranged at the barrier gate.
In the green lane vehicle inspection system in some embodiments, referring to fig. 2, the radar device 1 is provided at the rear end of the first pillar 3 and the second pillar with respect to the vehicle entrance direction.
The radar device 1 is arranged at the rear ends of the first upright post 3 and the second upright post relative to the driving-in direction of the vehicle, preferably, the radar device 1 is arranged close to the rear end of the first upright post 3, so that the radar device 1 and the ray transmitting device have basically the same visual angle to the vehicle, and the implementation effect is better.
The green channel vehicle inspection system in some embodiments, with reference to fig. 2, further comprises:
a driver near field exchange device 6 and a driver far field interaction camera 7;
the driver near field exchange device 6 is arranged at the front end of the barrier gate equipment 4 relative to the driving direction of the vehicle;
the far-field driver interaction camera 7 is arranged on the first upright 3 or the second upright.
The driver near field exchange device 6 is used for interaction application and inspection between the driver and the operator when the driver is about to enter the scanning area. The driver near field exchange device 6 is arranged at the forefront of the whole green channel.
A driver far-field interaction camera 7 is used to monitor the vehicle scanning process.
The green channel vehicle inspection system in some embodiments, with reference to fig. 2, further comprises:
an information prompt screen 8 and a system signal lamp 9;
the information prompt screen 8 is arranged at the front ends of the first upright post 3 and the second upright post relative to the driving direction of the vehicle; the information prompt screen 8 is provided with a loudspeaker;
the system signal lamp 9 is arranged on the first upright 3 or the second upright.
The information prompt screen 8 is used for prompting a driver to carry out examination in a matching way.
The system signal lamp 9 is used for prompting a driver to pass or stop passing.
The green channel vehicle inspection system in some embodiments, with reference to fig. 2, further comprises: a license plate recognition machine 10;
the license plate recognition machine 10 includes: a vehicle head license plate recognition machine and a vehicle tail license plate recognition machine;
the vehicle head license plate recognition machine is arranged at the front end of the first upright post 3 relative to the driving-in direction of the vehicle and is used for recognizing the vehicle head license plate of the vehicle when the vehicle drives in;
the vehicle tail license plate recognition machine is arranged at the front end of the second upright post relative to the driving-in direction of the vehicle and is used for recognizing the vehicle tail license plate of the vehicle when the vehicle drives out.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A green channel vehicle inspection system, comprising:
a radar device and a ray generation device group;
the radar apparatus includes: the system comprises a radio frequency module, a power supply module, a signal processing module, a radar controller and a first communication module;
each ray generation device in the ray generation device group comprises: the system comprises a ray generation module, a ray generation controller and a second communication module;
the radio frequency module is connected with the signal processing module, the radar controller is respectively connected with the power supply module, the signal processing module and the first communication module;
the ray generation controller is respectively connected with the ray generation module and the second communication module;
the first communication module is in communication connection with the second communication module;
the radio frequency module is used for transmitting an electromagnetic wave signal to a vehicle entering a green channel, receiving a reflected wave signal reflected by the vehicle, and sending the electromagnetic wave signal and the reflected wave signal to the signal processing module;
the signal processing module is used for performing frequency mixing processing on the electromagnetic wave signal and the reflected wave signal to generate an intermediate frequency signal and sending the intermediate frequency signal to the radar controller;
the radar controller is used for obtaining the distance between the vehicle and the radar device according to the intermediate frequency signal and controlling the first communication module to send a prompt signal to the second communication module when the distance reaches a preset distance value;
the second communication module is used for sending the prompt signal to the ray generation controller;
and the ray generation controller is used for controlling the ray generation module to carry out ray scanning on the vehicle when the prompt signal is received.
2. The green channel vehicle inspection system of claim 1,
the radio frequency module includes: at least 2 sets of transmit antennas and at least 2 sets of receive antennas.
3. The green channel vehicle inspection system of claim 1,
the radar apparatus further includes: a package housing;
the package housing includes: a metal housing and a plastic window;
the radio frequency module is arranged at the plastic window.
4. The green channel vehicle inspection system of claim 1,
the electromagnetic wave emitted by the radio frequency module is millimeter wave.
5. The green channel vehicle inspection system of claim 1, further comprising: a first upright and a second upright;
the first upright post and the second upright post are respectively arranged on two sides of the green channel;
the ray generating device group comprises: a first ray generating device and a second ray generating device;
the first ray generating device is arranged at the bottom of the first upright column and scans the vehicle from bottom to top, and the second ray generating device is arranged at the top of the second upright column and scans the vehicle from top to bottom; or the like, or, alternatively,
the first ray generating device is arranged at the top of the first upright column and scans the vehicle from top to bottom, and the second ray generating device is arranged at the bottom of the second upright column and scans the vehicle from bottom to top.
6. The green channel vehicle inspection system of claim 5, further comprising: barrier equipment;
the barrier gate apparatus includes: the barrier gate and the barrier gate smash-proof induction machine;
the barrier gate device is arranged at the front end of the first upright post and the second upright post relative to the driving-in direction of the vehicle.
7. A green channel vehicle inspection system according to claim 5, wherein said radar means is provided at a rear end of said first pillar and said second pillar with respect to a vehicle-entering direction.
8. The green channel vehicle inspection system of claim 6, further comprising:
the driver near field exchange device and the driver far field exchange camera;
the driver near-field exchange device is arranged at the front end of the barrier gate equipment relative to the driving direction of the vehicle;
the driver far-field interaction camera is arranged on the first upright post or the second upright post.
9. The green channel vehicle inspection system of claim 6, further comprising:
an information prompt screen and a system signal lamp;
the information prompt screen is arranged at the front ends of the first upright post and the second upright post relative to the driving direction of the vehicle; a loudspeaker is configured on the information prompt screen;
the system signal lamp is arranged on the first upright post or the second upright post.
10. The green channel vehicle inspection system of claim 5, further comprising: a license plate recognition machine;
the license plate recognition machine includes: a vehicle head license plate recognition machine and a vehicle tail license plate recognition machine;
the vehicle head license plate recognition machine is arranged at the front end of the first upright post relative to the driving-in direction of the vehicle;
the vehicle tail license plate recognition machine is arranged at the front end of the second upright post relative to the driving direction of the vehicle.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805242A (en) * | 2021-08-25 | 2021-12-17 | 浙江大华技术股份有限公司 | Security check machine ray source control method and device, computer equipment and storage medium |
| CN113805242B (en) * | 2021-08-25 | 2024-07-12 | 浙江大华技术股份有限公司 | Method and device for controlling ray source of security inspection machine, computer equipment and storage medium |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805242A (en) * | 2021-08-25 | 2021-12-17 | 浙江大华技术股份有限公司 | Security check machine ray source control method and device, computer equipment and storage medium |
| CN113805242B (en) * | 2021-08-25 | 2024-07-12 | 浙江大华技术股份有限公司 | Method and device for controlling ray source of security inspection machine, computer equipment and storage medium |
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