CN113592387B - Method, device and system for monitoring radioactive product transportation - Google Patents
Method, device and system for monitoring radioactive product transportation Download PDFInfo
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Abstract
The application relates to a method, a device and a system for monitoring the transportation of radioactive articles, wherein the method for monitoring the transportation of the radioactive articles comprises the following steps: acquiring the communication distance between the concentrator and the collector on each sub-path according to the path information of the transportation; determining the first number of the concentrators which can be connected with the collectors at most according to the minimum communication distance and the transportation information of the transportation; each vehicle is provided with a collector; calculating a second number of concentrators required to be set in the transportation according to the first number and the total number of the vehicles; and determining a third quantity of the collectors actually connected with each concentrator in the transportation according to the second quantity and the total number of the vehicles, and distributing the collectors of the third quantity to each concentrator so as to establish connection between each concentrator and the corresponding collector. The concentrator is arranged as few as possible under the condition of ensuring stable connection between the concentrator and the collector, and the transportation cost is reduced as much as possible.
Description
Technical Field
The present application relates to the field of radioactive article transportation, and in particular, to a method, an apparatus, and a system for monitoring radioactive article transportation.
Background
Because the transported radioactive articles are generally dangerous, the transported radioactive articles need to be continuously monitored during transportation, and timely discovery and quick response are guaranteed when various indexes of the transported radioactive articles are abnormal.
At present, when radioactive articles are transported, a collector is usually arranged on a goods package of the radioactive articles to collect various information of the corresponding goods package, the collector is connected with a concentrator, the concentrator sends the various information to a rear-end server, and continuous monitoring is achieved on the transportation process of the radioactive articles.
Therefore, the stable connection of the concentrator and the collector is crucial to realizing continuous monitoring; in order to ensure stable connection between the concentrator and the collector, a large number of concentrators are usually arranged according to the communication range between the concentrator and the collector, but the transportation cost is increased because the concentrators usually consume large power and have high cost.
Disclosure of Invention
In order to reduce the number of concentrators as much as possible and reduce the transportation cost as much as possible under the condition of ensuring the stable connection between the concentrators and the collectors, the application provides a method, a device and a system for monitoring the transportation of radioactive products.
In a first aspect, the present application provides a method for monitoring transportation of radioactive articles, which adopts the following technical scheme: a method of radioactive article transport monitoring, comprising:
acquiring the communication distance between the concentrator and the collector on each sub-path according to the path information of the transportation; the sub-paths are a plurality of sub-paths obtained by dividing the paths according to the path information and different road conditions;
determining the first number of the concentrators which can be connected with the collectors at most according to the minimum communication distance and the transportation information of the transportation; the transportation information comprises the total number of the vehicles transported at this time, the length of the vehicles, and a preset minimum distance and a preset maximum distance between the vehicles; each vehicle is provided with one collector;
calculating a second number of the concentrators required to be set in the transportation according to the first number and the total number of the vehicles;
and determining a third quantity of the collectors actually connected with each concentrator in the transportation according to the second quantity and the total number of the vehicles, and distributing the collectors of the third quantity to each concentrator so as to establish connection between each concentrator and the corresponding collector.
By adopting the technical scheme, when the communication distance of the concentrators is minimum, the third number of the concentrators capable of being connected with the collectors is calculated, and each concentrator is connected with the corresponding number of the collectors; in the transportation process of radioactive articles, the stable connection between each concentrator and the collector connected with the concentrator can be ensured, the arrangement number of the concentrators can be reduced as much as possible, and the transportation cost is effectively reduced.
Optionally, determining, according to the minimum communication distance and the transportation information of the current transportation, a first number of the concentrators that can be connected to the collectors at most includes:
calculating the maximum communication range R of each concentrator at the minimum communication distance max ；
According to the maximum communication range R max And the transportation information of the transportation determines the number m of the concentrators which can be connected with the collectors when a first condition is met; the first condition is:
m×L+(m-1)×a min ≤R max ；
wherein, a min Representing the preset minimum distance, L representing the vehicle length;
and acquiring the maximum integer value of the number m of the collectors which can be connected by each concentrator when the first condition is met as the first number.
Optionally, the calculating a second number of the concentrators according to the first number and the total number of the vehicles, where the second number is required to be set for the transportation includes:
dividing the total number of the vehicles by the first number to obtain a first coefficient k;
rounding the first coefficient k to obtain a second coefficient k';
determining the second number n from the second coefficient k'; the logic is configured to:
if k > k ', n = k' +1;
if k = k ', n = k'.
Optionally, the determining, according to the second number and the total number of the vehicles, a third number of the collectors actually connected to each concentrator in the transportation of the time includes:
calculating an average of the number of collectors connected to each concentrator
Wherein x represents the total number of vehicles and n represents the second number;
calculating a first variance of a third number of collectors connected to each concentrator
Wherein j is n Representing the number of the nth concentrator connected with the collector;
calculating the third number j corresponding to each concentrator when the first variance is minimized according to a first formula n A value of (d); wherein the first formula is
Through adopting above-mentioned technical scheme, when the first square difference is minimum, the quantity of the collector of being connected with every concentrator is comparatively average, can make the operating condition of every concentrator comparatively close, is favorable to more keeping the control of stable connecting box to the concentrator between every concentrator and the corresponding collector.
Optionally, the method further includes:
determining the maximum distance between vehicles in each sub-path according to the third quantity corresponding to each concentrator and the communication distance; the maximum distance is the maximum distance between vehicles when all the concentrators and the corresponding collectors can be stably connected;
obtaining the maximum effective distance between vehicles in each sub-path according to the maximum distance and the preset maximum distance;
monitoring a first distance in the driving process of the vehicle in real time, and judging the driving state of the transport vehicle according to the relation between the first distance and the preset minimum distance as well as the maximum effective distance corresponding to the sub-path; wherein the determination logic of the driving state is as follows:
if the first distance is larger than the preset minimum distance and smaller than the maximum effective distance, the driving state is normal; and if the first distance is smaller than or equal to the preset minimum distance or the first distance is larger than or equal to the maximum effective distance, the driving state is abnormal.
By adopting the technical scheme, in the process of radioactive product transportation, if the distance between the transport vehicles exceeds the maximum effective distance, the connection between the concentrator and the collector is possibly interrupted, and if the distance between the transport vehicles is smaller than the preset minimum distance, if a certain transport vehicle brakes, the collision condition is easily caused, and serious damage is possibly caused; the distance between the transport vehicles is monitored in real time, when the distance between the transport vehicles exceeds the maximum effective distance or is smaller than the preset minimum distance, the position reminding message is sent to the corresponding collector, and workers on the corresponding transport vehicles are prompted to adjust the speed of the vehicles according to the position reminding message, so that the safe transportation of the radioactive products is guaranteed.
Optionally, the determining a maximum distance between vehicles in each sub-path according to the third number and the communication distance corresponding to each concentrator includes:
finding out the maximum third quantity j with the maximum value in the third quantities max ；
Judging the maximum third number j max And according to said communication distance and said maximum third number j max Calculating the maximum distance a r (ii) a Wherein, a r Representing the maximum separation between vehicles in the r-th sub-path, which is calculated by the formula:
if the maximum third number j max Is an odd number of the components,
if the maximum third number j max Is an even number and is provided with a plurality of groups,
wherein L represents the vehicle length, R r Representing the communication distance of the concentrator within the r-th sub-path.
By adopting the technical scheme, as the concentrator needs to be arranged on the head of the transport vehicle, the maximum third quantity j is max The maximum distance is calculated under the conditions of odd numbers and even numbers respectively, so that the stable connection between the concentrator and the collector is ensured, the calculation result is more accurate, and the management between the concentrator and the collector is more accurate.
Optionally, the obtaining the maximum effective distance between vehicles in each sub-path according to the maximum distance and the preset maximum distance includes:
judging the maximum effective distance according to the relation between the maximum distance and the preset maximum distance; the judgment logic is as follows:
if the maximum distance is larger than or equal to the preset maximum distance, the maximum effective distance is equal to the preset maximum distance;
and if the maximum distance is smaller than the preset maximum distance, the maximum effective distance is equal to the maximum distance.
Optionally, the determining the driving state of the transportation vehicle according to the relationship between the first distance and the preset minimum distance and the maximum effective distance corresponding to the sub-path further includes:
comparing the first distance with the preset minimum distance and the maximum effective distance corresponding to the sub-path;
if the first distance is greater than or equal to the preset minimum distance and smaller than the maximum effective distance:
calculating a first difference between the maximum effective pitch and the first pitch;
if the first difference is smaller than or equal to a preset difference, the driving state is abnormal;
and if the first difference value is larger than the preset difference value, the driving state is normal.
Through adopting above-mentioned technical scheme, when first interval between the vehicle is in presetting minimum interval and the most effective interval between, calculate first difference, when first difference is less than or equal to and presets the difference, explain that first interval between the haulage vehicle that corresponds is about to surpass the maximum interval of presetting, the collector is about to surpass the communication scope of concentrator promptly, send the position to corresponding haulage vehicle this moment and remind the message, the suggestion corresponds staff in time adjusts haulage vehicle's speed, prevent that the collector from surpassing the communication scope of concentrator, guarantee to carry out real time monitoring to the radioactive goods parcel.
In a second aspect, the present application provides a device for monitoring transportation of radioactive articles, which adopts the following technical scheme: an apparatus for radioactive article transport monitoring, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the computer program, when executed by the processor, can implement a method for radioactive article transportation monitoring as set forth in any one of the first aspects.
By adopting the technical scheme, the transportation monitoring device can provide hardware and algorithm support for the transportation monitoring method in the first aspect, can store various received data from the collector and the concentrator, and sends corresponding information to the corresponding collector through the concentrator so as to ensure that the transportation monitoring method can be implemented.
In a third aspect, the present application provides a system for monitoring radioactive substance transportation, which adopts the following technical solutions: a radioactive article transportation monitoring system comprises a concentrator, a collector and the radioactive article transportation monitoring device in the second aspect;
the concentrator establishes connection with a plurality of collectors according to the third quantity, and sends the received information from the collectors to the radioactive substance transport vehicle monitoring device; receiving a position reminding message and sending the position reminding message to the corresponding collector;
the collector is arranged on the transport vehicle and used for measuring various information of the radioactive article cargo bag and sending the information to the concentrator, and the collector can also obtain a first position corresponding to the transport vehicle and report the first position to the radioactive article transport vehicle monitoring device through the concentrator; the collector can also receive the position reminding message.
By adopting the technical scheme, the transportation monitoring system completes the distribution of the number of the collectors connected with each concentrator through the transportation monitoring device, ensures that a small number of concentrators are arranged in the transportation of radioactive products, and can ensure the stable connection between the concentrators and the collectors; in addition, the distance between each transport vehicle is monitored, and the transport vehicles are prevented from colliding or the collectors are disconnected from the concentrator, so that various information of the radioactive product package is prevented from being lost.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps of firstly obtaining the minimum communication distance of the concentrator in each environment, finally calculating the number of collectors actually connected with each concentrator according to the minimum communication distance, transportation information and the like, reducing the number of the concentrators as much as possible while ensuring the stable connection between each concentrator and the collectors connected with the concentrator, and effectively reducing the transportation cost;
2. after the number of the collectors connected with each concentrator is determined, the maximum effective distance between the transport vehicles is calculated, the distance between the transport vehicles is monitored in real time, the running state of each transport vehicle is obtained according to the distance between the transport vehicles, the preset minimum distance and the maximum effective distance, and position reminding messages are sent to the corresponding transport vehicles when the running states of the transport vehicles are abnormal, so that corresponding workers are reminded to adjust the speed of the transport vehicles, and the safe transportation of radioactive products is guaranteed.
Drawings
FIG. 1 is a flow chart of a method for radioactive article transport monitoring in an embodiment of the present application;
fig. 2 is a schematic structural view of an apparatus for monitoring transportation of radioactive articles in the embodiment of the present application;
fig. 3 is a schematic structural diagram of a radioactive article transportation monitoring system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to fig. 1-3 and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses a method for monitoring the transportation of radioactive articles, which comprises the following steps:
acquiring the communication distance between the concentrator and the collector on each sub-path according to the path information of the transportation; the sub-paths are a plurality of sub-paths obtained by dividing the paths according to the path information and different road conditions;
determining the first number of the concentrators which can be connected with the collectors at most according to the minimum communication distance and the transportation information of the transportation; the transportation information comprises the total number of the vehicles transported at this time, the length of the vehicles, and a preset minimum distance and a preset maximum distance between the vehicles; each vehicle is provided with a collector;
calculating a second number of concentrators required to be set in the transportation according to the first number and the total number of the vehicles;
and determining the third number of the collectors actually connected with each concentrator in the current transportation according to the second number and the total number of the vehicles, and distributing the collectors of the third number to each concentrator so as to establish connection between each concentrator and the corresponding collector.
Referring to fig. 1, as one embodiment of a method of radioactive product transport vehicle monitoring, the method includes:
and S100, acquiring the route information and the transportation information of the transportation.
The path information is a traveling route of the transport tool during the transportation of the radioactive articles in the transportation task, and each path is divided into a plurality of sub-paths according to different road conditions in the traveling route of the path information. For example, if the travel route passes through three cases, namely, a road with an open place, a tunnel and a bridge opening in one transportation task, the travel routes in the three cases are respectively recorded as a sub-route.
The transportation information comprises the total number x of vehicles needing to be transported in the transportation, the length L of the vehicles and the preset minimum distance a between adjacent vehicles min And a preset maximum distance a max 。
One collector is arranged on each transport vehicle, so that the total number of the collectors is equal to the total number x of the vehicles. Preset minimum spacing a between adjacent transport vehicles min And a preset maximum distance a max Respectively, the minimum vehicle distance and the maximum vehicle distance between two adjacent transport vehicles are allowed in the transport task, if the distance between the adjacent vehicles is less than the preset minimum distance a min When the distance between two adjacent transport vehicles is too close, the transport vehicle at the rear may collide with the transport vehicle at the front in case of emergency such as sudden braking; if the distance between the adjacent vehicles is larger than the preset maximum distance a max If the distance between two adjacent transportation vehicles is too long, the transportation vehicles are inconvenient to uniformly manage or the concentrator cannot be connected with the corresponding collector.
And step S200, acquiring the communication distance of the concentrator in each sub-path according to the path information.
The communication distances of the concentrator in different sub-paths are different, the communication distances of the concentrator in various sub-paths are obtained through experiments and are preset values, and the concentrator can be directly taken out for use during radioactive product transportation.
Recording the communication distance of the concentrator corresponding to each sub-path as R r Wherein R is r Indicating the communication distance of the concentrator within the r-th sub-path.
And step S300, determining the first number of the collectors which can be connected by each concentrator at most in the transportation task according to the minimum communication distance and the transportation information.
Calculating the minimum communication distance of each concentratorR r The maximum communication range corresponding to the time is marked as R max And; wherein, the minimum communication distance refers to the minimum value of the communication distance of the concentrator in each sub-path.
The method comprises the following steps that the first number m of collectors which can be connected with each concentrator at most needs to meet a first condition so as to ensure that all the collectors connected with the concentrators are in the communication range of the concentrators; wherein the first condition is m.times.L + (m-1). Times.a min ≤R max 。
And calculating to obtain a maximum integer value of m meeting a first condition, wherein the maximum integer value is the first number of collectors which can be connected at most by each concentrator.
Step S400, determining a second number of concentrators required to be set for connecting all the collectors in the transportation task according to the first number and the total number of the vehicles; the method comprises the following steps:
dividing the total number x of the vehicles by the first number m to obtain a first coefficient k;
rounding the first coefficient k to obtain a second coefficient k';
determining a second number n from the second coefficient k'; the configuration logic is as follows:
if k > k ', n = k' +1;
if k = k ', n = k'.
And S500, determining the third number of the collectors actually connected with each concentrator in the transportation according to the second number and the total number of the vehicles.
Record the third number of collectors connected to each concentrator as j n (ii) a Wherein j is n Representing a third number of collectors connected to the nth concentrator;
calculating a third number j of collectors connected to each concentrator n Average value of (2)
Calculating a third number j of collectors connected to each concentrator n First variance δ of 2 ，
According to a first formula
Calculating a third number j corresponding to each concentrator when the first variance is minimized n The value of (c).
When the first square difference is minimum, the number of the collectors connected with each concentrator is relatively average, so that each concentrator can be stably connected with the corresponding collector.
Step S600, allocating a third number of collectors to each concentrator, and establishing a connection between each concentrator and the corresponding collector.
In the embodiment of the application, when the communication distance of the concentrator is the minimum, each concentrator can be connected with the third number of collectors, and each concentrator is connected with the corresponding number of collectors, so that in the transportation process of radioactive articles, the number of the concentrators is reduced as much as possible, and meanwhile, the stable connection between each concentrator and the collector connected with the concentrator can be ensured, and the transportation cost can be effectively reduced.
In other embodiments of the present application, the third number j of collectors is calculated n After the values of (a), a concentrator can be connected with j n -1 collector is connected to ensure a stable connection between the collector and the concentrator.
After step S600 in the embodiment of the present application, the method further includes:
step S700, determining the maximum distance between vehicles in each sub-path according to the third quantity and the communication distance corresponding to each concentrator; the maximum distance is the farthest distance between vehicles when all concentrators and corresponding collectors can be stably connected.
Step S800, obtaining the maximum effective distance between vehicles in each sub-path according to the maximum distance and the preset maximum distance; the method comprises the following steps:
judging the maximum effective distance according to the relation between the maximum distance and the preset maximum distance; the judgment logic is as follows:
if the maximum distance is larger than or equal to the preset maximum distance, the maximum effective distance is equal to the preset maximum distance;
and if the maximum distance is smaller than the preset maximum distance, the maximum effective distance is equal to the maximum distance.
Step S900, acquiring first positions of all transport vehicles in a transport task in real time, acquiring first distances among the vehicles, judging the running states of the transport vehicles according to the first distances, the preset minimum distances and the maximum effective distances, and sending position reminding messages to corresponding collectors when the transport states are abnormal; wherein, the driving state comprises normal and abnormal states, and the judgment logic is as follows:
and if the first distance is smaller than or equal to the preset minimum distance or the first distance is larger than or equal to the maximum effective distance, the driving state is abnormal.
In another embodiment of the present application, the method further includes:
comparing the first distance with a preset minimum distance and the maximum effective distance of the corresponding sub-path;
if the first distance is larger than or equal to the preset minimum distance and smaller than the maximum effective distance, calculating a first difference between the maximum effective distance and the first distance;
if the first difference is smaller than or equal to a preset difference, the driving state is abnormal;
and if the first difference is larger than the preset difference, the driving state is normal.
When the driving state is abnormal, sending a position reminding message to the transport vehicle; the position reminding message comprises a short-distance reminding message and a long-distance reminding message.
And when the first distance is smaller than or equal to the preset minimum distance, sending a short-distance reminding message to the transport vehicle.
After the transport vehicle receives the close-range reminding message, the staff on the transport vehicle can know that the distance between the current transport vehicle and the corresponding transport vehicle is too small, so that the risk of collision exists, and corresponding adjustment is needed.
And when the first distance is larger than the maximum effective distance or the first difference value is smaller than or equal to the preset difference value, sending a remote reminding message to the transport vehicle.
After the transport vehicle receives the remote reminding message, the staff on the transport vehicle can know that the distance between the current transport vehicle and the corresponding transport vehicle is too large, which may cause the concentrator to be incapable of keeping stable connection with the collector, and corresponding adjustment is needed.
In the embodiment of the application, the first distance between the vehicles is monitored in real time in the transportation process, and when the first distance between two certain transportation vehicles does not meet the condition, the position reminding message is sent to the corresponding collector to prompt that the running states of the corresponding transportation vehicles are abnormal. After the staff on the corresponding transport vehicle receives the position reminding message, the speed of the transport vehicle is adjusted according to the position reminding message so as to ensure that the running state of the transport vehicle is recovered to be normal and the safe transportation of the radioactive products is ensured.
Step S700 in the embodiment of the present application includes:
selecting the maximum of the third number to obtain the maximum third number j max ；
Judging the maximum third quantity j max According to the communication distance R r And a maximum third number j max Calculating the maximum distance a r ；
The calculation method comprises the following steps:
if the maximum third number j max Is an odd number of the components,
if the maximum third number j max Is an even number and is provided with a plurality of groups,
since the concentrator needs to be arranged at the head of the transport vehicle, when the maximum third number j max For an odd number, the concentrator should be arranged at the head of the transport vehicle in the middle of the fleet, so that the maximum distance between the collector connected to the concentrator and the concentrator is equal to the maximum distance between the transport vehicle in which the concentrator is arrangedThe sum of the length of the vehicles, the total length of half of the vehicles excluding the intermediate transport vehicle, and half of the maximum spacing.
For example, if the maximum third number j max Equal to 3, i.e. the concentrator is connected to three collectors, the concentrator being arranged at the head of the transport vehicle located in the middle, the farthest distance from the three collectors being equal to the sum of two transport vehicles and a maximum distance.
When the maximum third number j max For an even number, the concentrator should be located in the middle two transport vehicles of the fleet, closest to the head of the fleet, so that the maximum distance between the collector connected to the concentrator and the concentrator is equal to the sum of a maximum separation, half the total length of the transport vehicles, and the maximum separation excluding the second half of the maximum separation.
For example, if the maximum third number j max And 4, the concentrator is connected with the four collectors, the concentrator is arranged at the head closest to the middle of the motorcade, and the farthest distance between the concentrator and the four collectors is equal to the sum of two transport vehicles and two maximum distances.
In another embodiment of the application, the vehicle information further comprises a command vehicle, the command vehicle is located at the rearmost part of the transport fleet, the command vehicle is connected with all the concentrators in the transport task, and the information is acquired from the concentrators and is sent.
Referring to fig. 2, as an implementation of the apparatus for monitoring the transportation of radioactive articles, the transportation monitoring apparatus 10 includes a memory 11, a processor 12, and a computer program stored in the memory 11 and operable on the processor 12. When the processor 12 executes the computer program, a method for monitoring transportation of radioactive articles, disclosed in the embodiments of the present application, can be implemented, for example, steps S100 to S900.
The embodiment of the present application further discloses a system for monitoring the transportation of radioactive articles, and referring to fig. 3, as an implementation manner of the system for monitoring the transportation of radioactive articles, the system includes the transportation monitoring device 10, the concentrator 20, and the collector 30 disclosed in the embodiment of the present application.
The concentrator 20 is provided on the transport vehicle, and in each transport task, the concentrator 20 establishes a connection with a fixed number of collectors 30 specified nearby according to the calculation result of the transport monitoring apparatus 10, acquires information from the collectors 30 with which the connection is established, and transmits the information to the transport monitoring apparatus 10.
The collectors 30 are arranged on the bags for loading radioactive articles on the transport vehicles, each transport vehicle is provided with one collector 30, and the collectors 30 are used for measuring various information of the bags for the radioactive articles transported by the transport vehicles. After the collector 30 is connected to the concentrator 20, various items of information of the radioactive article package can be sent to the concentrator 20. Furthermore, the collector 30 is also able to acquire its first position and send it to the transportation monitoring device 10 via the concentrator 20.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (9)
1. A method of radioactive article transport monitoring, comprising:
acquiring the communication distance between the concentrator and the collector on each sub-path according to the path information of the transportation; wherein the sub-path is a plurality of paths obtained by dividing the path according to the path information and different road conditions
Determining the first number of the concentrators which can be connected with the collectors at most according to the minimum communication distance and the transportation information of the transportation; the transportation information comprises the total number of the vehicles transported at this time, the lengths of the vehicles, and a preset minimum distance and a preset maximum distance between the vehicles; each vehicle is provided with one collector;
calculating a second number of the concentrators required to be set in the transportation according to the first number and the total number of the vehicles;
determining a third number of collectors actually connected with each concentrator in the current transportation according to the second number and the total number of the vehicles, and distributing the third number of collectors to each concentrator so that each concentrator is connected with the corresponding collector;
determining the first number of the concentrators which can be connected with the collectors at most according to the minimum communication distance and the transportation information of the transportation, and the method comprises the following steps:
calculating the maximum communication range R of each concentrator at the minimum communication distance max (ii) a Determining the number m of the concentrators which can be connected with the collectors when a first condition is met according to the maximum communication range and the transportation information of the current transportation; the first condition is that: m.times.L + (m-1). Times.a min ≤R max ；
Wherein, a min Representing the preset minimum distance, L representing the vehicle length;
and obtaining a maximum integer value of the number m of collectors that each concentrator can connect to when the first condition is satisfied, as the first number.
2. The method of claim 1, wherein calculating a second number of concentrators to set for the current shipment based on the first number and the total number of vehicles comprises:
dividing the total number of the vehicles by the first number to obtain a first coefficient k;
rounding the first coefficient k to obtain a second coefficient k';
determining the second number n from the second coefficient k'; the logic is configured to:
if k > k ', n = k' +1;
if k = k ', n = k'.
3. The method of claim 1, wherein the determining a third number of collectors actually connected to each concentrator in the current transportation according to the second number and the total number of vehicles comprises:
calculating an average of the number of collectors connected to each concentrator
Wherein x represents the total number of vehicles and n represents the second number;
calculating a third number j of collectors connected to each concentrator n First square difference of
Wherein, the number of the nth concentrator connected with the collector is represented;
calculating the third number j corresponding to each concentrator when the first variance is minimized according to a first formula n A value of (d); wherein the first formula is
4. The method of claim 1, further comprising:
determining the maximum distance between vehicles in each sub-path according to the third quantity corresponding to each concentrator and the communication distance; the maximum distance is the maximum distance between vehicles when all the concentrators and the corresponding collectors can be stably connected; obtaining the maximum effective distance between vehicles in each sub-path according to the maximum distance and the preset maximum distance;
monitoring a first distance in the driving process of the vehicle in real time, and judging the driving state of the transport vehicle according to the relation between the first distance and the preset minimum distance as well as the maximum effective distance corresponding to the sub-path; wherein the determination logic of the driving state is as follows:
if the first distance is larger than the preset minimum distance and smaller than the maximum effective distance, the driving state is normal;
and if the first distance is smaller than or equal to the preset minimum distance or the first distance is larger than or equal to the maximum effective distance, the driving state is abnormal.
5. The method of claim 4, wherein said determining a maximum separation between vehicles within each of said sub-paths based on said third number and said communication distance corresponding to each of said concentrators comprises:
finding out the maximum third quantity j with the maximum value in the third quantities max ；
Judging the maximum third number j max And according to said communication distance and said maximum third number j max Calculating the maximum distance a r (ii) a Wherein, a r Representing the maximum separation between vehicles in the r-th sub-path, which is calculated by the formula:
if the maximum third number j max Is an odd number of the components,
if the maximum third number j max Is even number and is greater or less than>
Wherein L represents the vehicle length, R r Representing the communication distance of the concentrator within the r-th sub-path.
6. The method of claim 4, wherein said deriving a maximum effective separation between vehicles within each of said sub-paths from said maximum separation and said preset maximum separation comprises:
judging the maximum effective distance according to the relation between the maximum distance and the preset maximum distance;
if the maximum distance is larger than or equal to the preset maximum distance, the maximum effective distance is equal to the preset maximum distance;
and if the maximum distance is smaller than the preset maximum distance, the maximum effective distance is equal to the maximum distance.
7. The method of claim 4, wherein said determining a driving status of a transportation vehicle based on a relationship between said first distance and said preset minimum distance and said maximum effective distance corresponding to said sub-path further comprises:
comparing the first distance with the preset minimum distance and the maximum effective distance corresponding to the sub-path;
if the first distance is larger than or equal to the preset minimum distance and smaller than the maximum effective distance, calculating a first difference between the maximum effective distance and the first distance;
if the first difference is smaller than or equal to a preset difference, the driving state is abnormal;
and if the first difference is larger than the preset difference, the driving state is normal.
8. An apparatus for radioactive article transport monitoring, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor; the computer program, when executed by the processor, is capable of implementing a method for radioactive transport monitoring as claimed in any one of claims 1 to 7.
9. A radioactive article transportation monitoring system, which is characterized by comprising a concentrator, a collector and a radioactive article transportation monitoring device according to claim 8;
the concentrator establishes connection with a plurality of collectors according to the third quantity, and sends the received information from the collectors to the radioactive substance transport vehicle monitoring device; receiving a position reminding message and sending the position reminding message to the corresponding collector;
the collector is arranged on the transport vehicle and used for measuring various information of the radioactive article cargo bag and sending the information to the concentrator, and the collector can also obtain a first position corresponding to the transport vehicle and report the first position to the radioactive article transport vehicle monitoring device through the concentrator; the collector can also receive the position reminding message.
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