CN113627752A - Express logistics management method and system based on block chain technology - Google Patents
Express logistics management method and system based on block chain technology Download PDFInfo
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Abstract
The invention discloses an express logistics management method and system based on a block chain technology, which comprises a courier workload adjusting module and a courier number adjusting module, wherein the courier workload adjusting module is electrically connected with the courier number adjusting module; the system comprises a courier number adjusting module, a courier task allocating module and a workload data updating module, wherein the courier number adjusting module is used for adjusting the number of couriers at a network point, the courier workload adjusting module is used for adjusting the workload allocated to the couriers, the courier workload adjusting module comprises a courier workload estimating module, a courier task allocating module and a workload data updating module, the courier number adjusting module comprises a data statistics module, a workload calculating module, a courier optimal number calculating module and a courier dynamic adjusting module, and the courier workload estimating module is electrically connected with the courier task allocating module.
Description
Technical Field
The invention relates to the technical field of express logistics management, in particular to an express logistics management method and system based on a block chain technology.
Background
With the development of the times, the management method of express logistics is more and more widely regarded. Because the number of couriers between the express delivery site is unevenly distributed, the condition that some express delivery sites have surplus human resources and some express delivery sites lack manpower can be caused. Moreover, work efficiency is different among couriers, and if the same workload is distributed to the couriers, some couriers finish work too early and some couriers cannot finish the distributed tasks. In addition, the work loss of the courier to make the allocation needs to be taken into account. Therefore, it is necessary to design an adjustable express logistics management method and system based on the block chain technology.
Disclosure of Invention
The invention aims to provide an express logistics management method and system based on a block chain technology, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: an express logistics management method and system based on a block chain technology comprise a courier terminal module, a courier workload adjusting module and a courier number adjusting module, wherein the courier terminal module is electrically connected with the courier workload adjusting module and the courier number adjusting module;
the express delivery terminal module is used for collecting express delivery data and receiving information of the express delivery personnel, the express delivery personnel number adjusting module is used for adjusting the number of the express delivery personnel at the network site, and the express delivery personnel workload adjusting module is used for adjusting the workload distributed to the express delivery personnel.
According to the technical scheme, the courier terminal module comprises a courier scanning module, a workload data recording module, a data receiving module and a data display module, the courier workload adjusting module comprises a courier workload record obtaining module and a courier workload updating module, the data receiving module is electrically connected with data display, the workload data recording module is electrically connected with the courier workload record obtaining module, and the courier workload record obtaining module is electrically connected with the courier workload updating module;
the express scanning module is used for obtaining the number and weight of express, the workload data recording module is used for recording the daily workload of a courier, the data receiving module is used for receiving the indication message from a network point, the data display module is used for displaying the indication message from the network point, the courier workload record obtaining module is used for obtaining the workload data of the courier on the day, and the courier workload updating module is used for updating the workload of the courier according to the data.
According to the technical scheme, the courier number adjusting module comprises a data acquiring module, a workload calculating module, a courier optimal number calculating module, a courier dynamic adjusting module and a data sending module, the courier scanning module is electrically connected with the data acquiring module, the data acquiring module is electrically connected with the workload calculating module, the workload calculating module is electrically connected with the courier optimal number calculating module, the courier optimal number calculating module is electrically connected with the courier dynamic adjusting module, and the courier dynamic adjusting module is electrically connected with the data sending module;
the system comprises a data acquisition module, a workload calculation module, a courier dynamic adjustment module and a data sending module, wherein the data acquisition module is used for counting the number of pieces to be dispatched, the total weight of the pieces to be dispatched and the delivery coverage area of the network site, the workload calculation module is used for calculating the total workload of the network site, the courier optimal number calculation module is used for calculating the optimal solution of the number of couriers required by the network site, the couriers dynamic adjustment module is used for dynamically adjusting the number of the couriers among the network sites according to the optimal solution of the number of the couriers required by the network site, and the data sending module is used for transmitting an indication message to the couriers.
According to the technical scheme, the system has the working process that:
s1, the courier acquires the number and weight information of the express items through the express scanning module, uploads express data to a database, and the workload of the courier per se is recorded through the workload data recording module;
s2, counting the number n of the express items needing to be delivered by the whole network point, the total weight m of the express items needing to be delivered by the network point and the delivery coverage area S of the network point by the data acquisition module, and calculating the workload of the network point according to the number n of the express items needing to be delivered by the whole network point, the total weight m of the delivery items needing to be delivered by the network point and the delivery coverage area S of the network point by the workload calculation module;
s3, through the optimal number calculation module of the couriers, the system calculates the optimal solution of the number of the couriers of the website according to the calculated total workload of the website;
s4, adjusting the number of couriers of each website according to the calculated optimal solution of the number of couriers of the website through a dynamic courier adjustment module;
and S5, after the adjustment is carried out among the network points, the courier is informed to go to the indicated place.
According to the above technical solution, in the step S1, the workload of the courier is recorded, and the recording process specifically includes:
s1-1, through the workload data recording module, the daily workload data of the couriers are uploaded to a database, and the workload which can be completed by each courier in the same day is recorded as WiAnd will allocate a workload W to it the next dayiThe operation of (2);
s1-2, when the courier can finish the work within the specified working time and has idle time, judging that the daily work amount of the courier is more than W at the momentiAnd updating the database according to the actual workload of the courier on the same day, and judging that the daily workload of the courier at the moment is equal to W when the courier can finish the work of the courier within the specified working timeiWhen the courier does not finish the work within the specified working time, the daily work amount of the courier at the moment is judged to be less than WiAnd updating the database according to the actual workload of the courier, and performing task allocation for the courier according to the updated data when the next task is allocated.
According to the above technical solution, in the step S2, the specific method for calculating the total workload of the website includes:
the larger the network site coverage area S is, the more the time spent by a courier in the delivery process is, the larger the number n of the network sites required to deliver the courier is, the more the time spent by the courier in the delivery process is, the larger the total weight m of the network sites required to deliver the courier is, and the more the courier consumes energy for carrying the courier, so that the total workload of the network site is related to the delivery coverage area S of the network site, the number n of the network sites required to deliver the courier and the total weight m of the network sites required to deliver the courier;
and according to the counted n, m and S, calculating the total workload of the network point as follows:
W＝μSnm
where μ is the accommodation coefficient.
According to the above technical solution, in the step S3, the specific method for calculating the optimal solution of the number of the website couriers is as follows:
the total workload W of all the network points of the section is that the section has q total couriers, and the total workload which can be completed by all the couriers is
When in use
When the human hand is redundant, when
When the hand is just enough, the hand is just enough
At the moment, the hands are in short supply;
when in use
At the moment, the hand is in shortage, so that each network point is ensured to have a certain number of couriers, and then the rest couriers are distributed, wherein the optimal solution y of the number of the couriers at a certain network point is
Wherein p is the total number of the network points in the area, x is the number of couriers at least required by the operation of a single network point, and the total workload of a certain network point is Aj；
When in use
At the moment, the hands are sufficient, the distribution is carried out according to the demand of the express delivery network, and the daily average workload of the couriers is
At the moment, the optimal solution y of the number of the dispatchers of a certain network point is
The number of couriers required by all the network points is
According to the above technical solution, in the step S3, when
At the moment, the hands are sufficient, and the number of the remaining couriers is q-yGeneral assemblyThe part of couriers will help the couriers with reduced work efficiency, and the specific help method is as follows:
the work efficiency of a courier over time is as follows: during working time, the working efficiency is linearly reduced along with the increase of the working time
σA＝σ0-μt,0＜t≤t0
Wherein sigmaAFor the efficiency of operation, σ0For initial work efficiency, t is time, t0Is set to sigmaATime to fall to 0, μ is the adjustment factor;
the work efficiency of the courier performing the assistance over time is as follows: before arriving at the place of the courier needing help, the working efficiency of the courier is negative, and after arriving, the working efficiency is linearly reduced along with the increase of the working time
Wherein sigmaBFor the efficiency of operation, σ0Is an initialWorking efficiency, t is time, t1Setting the time for the courier to arrive at the courier place needing help, determining the time for the courier to arrive at the courier place needing help according to the distance from the courier to the courier place needing help, t2Setting the time for finishing the work, wherein mu is an adjusting coefficient;
the total workload of a courier is
The total workload of the two couriers is
The other two total workloads are equal, then
Order to
To make t2＜t0Then, then
When the time spent by the help-carrying courier to arrive at the courier needing help is more than that
At this point, the losses are higher than the benefits to be gained, and no further deployment will take place.
According to the above technical solution, in the step S4, the specific working process of adjusting the number of couriers is as follows:
s4-1, when the number of the couriers of the website is less than y, the website will transmit the number of the missing couriers and the directions of the missing couriers into the database, and when the number of the couriers of the website is more than y, the number of the excess couriers and the directions of the excess couriers will be transmitted into the database;
s4-2, after uploading, the website will receive the data uploaded from other websites, and the website lacking the courier will apply for the dispatch of the courier to the website with more couriers nearest;
s4-3, after receiving the application, the website of the multi-output courier confirms to contact the courier to go to the area lacking the courier and renewedly update the database;
and S4-4, the website lacking the courier renews the database after the application is confirmed.
According to the above technical solution, in the step S5, the specific way for the website to notify the courier is as follows: through the data sending module, adjustment data are sent to the courier terminal module after the number of couriers is adjusted among the network points, the data receiving module receives the adjustment data sent by the network points and displays the adjustment data through the data display module, and the couriers go to corresponding places to work according to instructions of the courier terminal module after receiving the data.
Compared with the prior art, the invention has the following beneficial effects: the invention adjusts the number and workload of the couriers, and takes the efficiency loss in the dispatching process of the couriers into consideration, thereby playing the roles of improving the efficiency and saving human resources.
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The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall module structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides the technical solution: an express logistics management method and system based on a block chain technology comprise a courier terminal module, a courier workload adjusting module and a courier number adjusting module, wherein the courier terminal module is electrically connected with the courier workload adjusting module and the courier number adjusting module;
the courier terminal module is used for collecting express data and receiving information by couriers, the courier number adjusting module is used for adjusting the number of the couriers at a network site, and the courier workload adjusting module is used for adjusting the workload distributed to the couriers;
the courier terminal module comprises a courier scanning module, a workload data recording module, a data receiving module and a data display module, the courier workload adjusting module comprises a courier workload record obtaining module and a courier workload updating module, the data receiving module is electrically connected with the data display, the workload data recording module is electrically connected with the courier workload record obtaining module, and the courier workload record obtaining module is electrically connected with the courier workload updating module;
the system comprises an express scanning module, a workload data recording module, a data receiving module, a data display module, a courier workload recording and acquiring module and a courier workload updating module, wherein the express scanning module is used for acquiring the number and the weight of express pieces, the workload data recording module is used for recording the daily workload of a courier, the data receiving module is used for receiving an indication message from a network point, the data display module is used for displaying the indication message from the network point, the courier workload recording and acquiring module is used for acquiring the workload data of the courier on the day, and the courier workload updating module is used for updating the workload of the courier according to the data;
the express delivery person number adjusting module comprises a data acquiring module, a working amount calculating module, an optimal express delivery person number calculating module, an dynamic express delivery person adjusting module and a data sending module, wherein the express scanning module is electrically connected with the data acquiring module, the data acquiring module is electrically connected with the working amount calculating module, the working amount calculating module is electrically connected with the optimal express delivery person number calculating module, the optimal express delivery person number calculating module is electrically connected with the dynamic express delivery person adjusting module, and the dynamic express delivery person adjusting module is electrically connected with the data sending module;
the system comprises a data acquisition module, a workload calculation module, a courier optimal number calculation module, a courier dynamic adjustment module and a data sending module, wherein the data acquisition module is used for counting the number of pieces to be dispatched, the total weight of the pieces to be dispatched and the delivery coverage area of the network site;
the working process of the system is as follows:
s1, the courier acquires the number and weight information of the express items through the express scanning module, uploads express data to a database, and the workload of the courier per se is recorded through the workload data recording module;
s2, counting the number n of the express items needing to be delivered by the whole network point, the total weight m of the express items needing to be delivered by the network point and the delivery coverage area S of the network point by the data acquisition module, and calculating the workload of the network point according to the number n of the express items needing to be delivered by the whole network point, the total weight m of the delivery items needing to be delivered by the network point and the delivery coverage area S of the network point by the workload calculation module;
s3, through the optimal number calculation module of the couriers, the system calculates the optimal solution of the number of the couriers of the website according to the calculated total workload of the website;
s4, adjusting the number of couriers of each website according to the calculated optimal solution of the number of couriers of the website through a dynamic courier adjustment module;
s5, after the adjustment is carried out among the network points, the system is responsible for informing the courier of going to the indicated place;
in the step S1, the workload of the courier will be recorded, and the recording process is specifically as follows:
s1-1, pass workloadThe data recording module is used for uploading daily workload data of the couriers to the database, and the workload which can be completed by each courier on the same day is recorded as WiAnd will allocate a workload W to it the next dayiThe operation of (2);
s1-2, when the courier can finish the work within the specified working time and has idle time, judging that the daily work amount of the courier is more than W at the momentiAnd updating the database according to the actual workload of the courier on the same day, and judging that the daily workload of the courier at the moment is equal to W when the courier can finish the work of the courier within the specified working timeiWhen the courier does not finish the work within the specified working time, the daily work amount of the courier at the moment is judged to be less than WiUpdating the database according to the actual workload of the courier, and performing task allocation for the courier according to the updated data when the next task is allocated;
in the step S2, the specific method for calculating the total workload of the website includes:
the larger the network site coverage area S is, the more the time spent by a courier in the delivery process is, the larger the number n of the network sites required to deliver the courier is, the more the time spent by the courier in the delivery process is, the larger the total weight m of the network sites required to deliver the courier is, and the more the courier consumes energy for carrying the courier, so that the total workload of the network site is related to the delivery coverage area S of the network site, the number n of the network sites required to deliver the courier and the total weight m of the network sites required to deliver the courier;
and according to the counted n, m and S, calculating the total workload of the network point as follows:
W＝μSnm
wherein μ is the accommodation coefficient;
in the step S3, the specific method for calculating the optimal solution of the number of the couriers at the website includes:
the total workload W of all the network points of the section is that the section has q total couriers, and the total workload which can be completed by all the couriers is
When in use
When the human hand is redundant, when
When the hand is just enough, the hand is just enough
At the moment, the hands are in short supply;
when in use
At the moment, the hand is in shortage, so that each network point is ensured to have a certain number of couriers, and then the rest couriers are distributed, wherein the optimal solution y of the number of the couriers at a certain network point is
Wherein p is the total number of the network points in the area, x is the number of couriers at least required by the operation of a single network point, and the total workload of a certain network point is Aj；
When in use
At the moment, the hands are sufficient, the distribution is carried out according to the demand of the express delivery network, and the daily average workload of the couriers is
At the moment, the optimal solution y of the number of the dispatchers of a certain network point is
The number of couriers required by all the network points is
In the above step S3, when
At the moment, the hands are sufficient, and the number of the remaining couriers is q-yGeneral assemblyThe part of couriers will help the couriers with reduced work efficiency, and the specific help method is as follows:
the work efficiency of a courier over time is as follows: during working time, the working efficiency is linearly reduced along with the increase of the working time
σA＝σ0-μt,0＜t≤t0
Wherein sigmaAFor the efficiency of operation, σ0For initial work efficiency, t is time, t0Is set to sigmaATime to fall to 0, μ is the adjustment factor;
the work efficiency of the courier performing the assistance over time is as follows: before arriving at the place of the courier needing help, the working efficiency of the courier is negative, and after arriving, the working efficiency is linearly reduced along with the increase of the working time
Wherein sigmaBFor the efficiency of operation, σ0For initial work efficiency, t is time, t1Setting the time for the courier to arrive at the courier place needing help, determining the time for the courier to arrive at the courier place needing help according to the distance from the courier to the courier place needing help, t2Setting the time for finishing the work, wherein mu is an adjusting coefficient;
the total workload of a courier is
The total workload of the two couriers is
The other two total workloads are equal, then
Order to
To make t2＜t0Then, then
When the time spent by the help-carrying courier to arrive at the courier needing help is more than that
At this time, the loss is higher than the benefit obtained by help, and the blending is not carried out any more;
in the step S4, the specific working process of adjusting the number of the couriers is as follows:
s4-1, when the number of the couriers of the website is less than y, the website will transmit the number of the missing couriers and the directions of the missing couriers into the database, and when the number of the couriers of the website is more than y, the number of the excess couriers and the directions of the excess couriers will be transmitted into the database;
s4-2, after uploading, the website will receive the data uploaded from other websites, and the website lacking the courier will apply for the dispatch of the courier to the website with more couriers nearest;
s4-3, after receiving the application, the website of the multi-output courier confirms to contact the courier to go to the area lacking the courier and renewedly update the database;
s4-4, after the request of the website lacking the courier is confirmed, the database is updated again;
in the step S5, the specific way for the website to notify the courier is as follows: through the data sending module, adjustment data are sent to the courier terminal module after the number of couriers is adjusted among the network points, the data receiving module receives the adjustment data sent by the network points and displays the adjustment data through the data display module, and the couriers go to corresponding places to work according to instructions of the courier terminal module after receiving the data.
Example (b):
assuming that the total number of the network sites in the area is 10, there are 100 couriers, and assuming that the workload that each courier can complete is the same, the courier will record the workload U of each courier in the daily work, and the workload that all the couriers can complete is 100U. The total workload of the patch area is W, and the workload of each dot is assumed to be the same and is W/10.
When the total workload W>At 100U, the hands of the couriers in the area are insufficient at the moment, and the formula is used
Each site is assigned 10 couriers. When the total workload W<100U, the courier in the area has enough hands, and if W is 50U, the formula is adopted
Each site is assigned 5 couriers, and the remaining 50 couriers will assist couriers with reduced work efficiency.
The distribution of the couriers is uneven, 16 couriers exist in the network point A, 8 couriers exist in the network point B, the time from A to B is t, and if the total workload W of the day is>100U, the network point A sends 2 couriers to the network point B, the lost workload in the process is
If W is the same day<100U, for example, 50U, in which both have sufficient couriers, only when the courier at site B has insufficient hand to replace it, willAnd applying for the dispatch of a courier to the site A.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An express logistics management method and system based on block chain technology are characterized in that: the system comprises a courier terminal module, a courier workload adjusting module and a courier number adjusting module, wherein the courier terminal module is electrically connected with the courier workload adjusting module and the courier number adjusting module;
the express delivery terminal module is used for collecting express delivery data and receiving information of the express delivery personnel, the express delivery personnel number adjusting module is used for adjusting the number of the express delivery personnel at the network site, and the express delivery personnel workload adjusting module is used for adjusting the workload distributed to the express delivery personnel.
2. The express logistics management method and system based on the block chain technology according to claim 1, wherein: the courier terminal module comprises an express scanning module, a workload data recording module, a data receiving module and a data display module, the courier workload adjusting module comprises a courier workload record obtaining module and a courier workload updating module, the data receiving module is electrically connected with the data display module, the workload data recording module is electrically connected with the courier workload record obtaining module, and the courier workload record obtaining module is electrically connected with the courier workload updating module;
the express scanning module is used for obtaining the number and weight of express, the workload data recording module is used for recording the daily workload of a courier, the data receiving module is used for receiving the indication message from a network point, the data display module is used for displaying the indication message from the network point, the courier workload record obtaining module is used for obtaining the workload data of the courier on the day, and the courier workload updating module is used for updating the workload of the courier according to the data.
3. The express logistics management method and system based on the block chain technology according to claim 2, wherein: the express delivery person number adjusting module comprises a data acquiring module, a work amount calculating module, an optimal express delivery person number calculating module, a dynamic express delivery person adjusting module and a data sending module, the express delivery scanning module is electrically connected with the data acquiring module, the data acquiring module is electrically connected with the work amount calculating module, the work amount calculating module is electrically connected with the optimal express delivery person number calculating module, the optimal express delivery person number calculating module is electrically connected with the dynamic express delivery person adjusting module, and the dynamic express delivery person adjusting module is electrically connected with the data sending module;
the system comprises a data acquisition module, a workload calculation module, a courier dynamic adjustment module and a data sending module, wherein the data acquisition module is used for counting the number of pieces to be dispatched, the total weight of the pieces to be dispatched and the delivery coverage area of the network site, the workload calculation module is used for calculating the total workload of the network site, the courier optimal number calculation module is used for calculating the optimal solution of the number of couriers required by the network site, the couriers dynamic adjustment module is used for dynamically adjusting the number of the couriers among the network sites according to the optimal solution of the number of the couriers required by the network site, and the data sending module is used for transmitting an indication message to the couriers.
4. The express logistics management method and system based on the block chain technology of claim 3, wherein: the working process of the system is as follows:
s1, the courier acquires the number and weight information of the express items through the express scanning module, uploads express data to a database, and the workload of the courier per se is recorded through the workload data recording module;
s2, counting the number n of the express items needing to be delivered by the whole network point, the total weight m of the express items needing to be delivered by the network point and the delivery coverage area S of the network point by the data acquisition module, and calculating the workload of the network point according to the number n of the express items needing to be delivered by the whole network point, the total weight m of the delivery items needing to be delivered by the network point and the delivery coverage area S of the network point by the workload calculation module;
s3, through the optimal number calculation module of the couriers, the system calculates the optimal solution of the number of the couriers of the website according to the calculated total workload of the website;
s4, adjusting the number of couriers of each website according to the calculated optimal solution of the number of couriers of the website through a dynamic courier adjustment module;
and S5, after the adjustment is carried out among the network points, the courier is informed to go to the indicated place.
5. The express logistics management method and system based on the block chain technology according to claim 4, wherein: in the step S1, the workload of the courier will be recorded, and the recording process is specifically as follows:
s1-1, through the workload data recording module, the daily workload data of the couriers are uploaded to a database, and the workload which can be completed by each courier in the same day is recorded as WiAnd is combined withWill allocate a workload of W to it the next dayiThe operation of (2);
s1-2, when the courier can finish the work within the specified working time and has idle time, judging that the daily work amount of the courier is more than W at the momentiAnd updating the database according to the actual workload of the courier on the same day, and judging that the daily workload of the courier at the moment is equal to W when the courier can finish the work of the courier within the specified working timeiWhen the courier does not finish the work within the specified working time, the daily work amount of the courier at the moment is judged to be less than WiAnd updating the database according to the actual workload of the courier, and performing task allocation for the courier according to the updated data when the next task is allocated.
6. The express logistics management method and system based on the block chain technology of claim 5, wherein: in the step S2, the specific method for calculating the total workload of the website includes:
the larger the network site coverage area S is, the more the time spent by a courier in the delivery process is, the larger the number n of the network sites required to deliver the courier is, the more the time spent by the courier in the delivery process is, the larger the total weight m of the network sites required to deliver the courier is, and the more the courier consumes energy for carrying the courier, so that the total workload of the network site is related to the delivery coverage area S of the network site, the number n of the network sites required to deliver the courier and the total weight m of the network sites required to deliver the courier;
and according to the counted n, m and S, calculating the total workload of the network point as follows:
W＝μSnm
where μ is the accommodation coefficient.
7. The express logistics management method and system based on the block chain technology of claim 6, wherein: in the step S3, the specific method for calculating the optimal solution of the number of the couriers at the website includes:
the total workload W of all the network points of the section is that the section has q total couriers, and the total workload which can be completed by all the couriers is
When in use
When the human hand is redundant, when
When the hand is just enough, the hand is just enough
At the moment, the hands are in short supply;
when in use
At the moment, the hand is in shortage, so that each network point is ensured to have a certain number of couriers, and then the rest couriers are distributed, wherein the optimal solution y of the number of the couriers at a certain network point is
Wherein p is the total number of the network points in the area, x is the number of couriers at least required by the operation of a single network point, and the total workload of a certain network point is Aj；
When in use
At the moment, the hands are sufficient, the distribution is carried out according to the demand of the express delivery network, and the daily average workload of the couriers is
At the moment, the optimal solution y of the number of the dispatchers of a certain network point is
The number of couriers required by all the network points is
8. The express logistics management method and system based on the block chain technology of claim 7, wherein: in the above step S3, when
At the moment, the hands are sufficient, and the number of the remaining couriers is q-yGeneral assemblyThe part of couriers will help the couriers with reduced work efficiency, and the specific help method is as follows:
the work efficiency of a courier over time is as follows: during working time, the working efficiency is linearly reduced along with the increase of the working time
σA＝σ0-μt,0＜t≤t0
Wherein sigmaAFor the efficiency of operation, σ0For initial work efficiency, t is time, t0Is set to sigmaATime to fall to 0, μ is the adjustment factor;
the work efficiency of the courier performing the assistance over time is as follows: before arriving at the place of the courier needing help, the working efficiency of the courier is negative, and after arriving, the working efficiency is linearly reduced along with the increase of the working time
Wherein sigmaBFor the efficiency of operation, σ0For initial work efficiency, t is time, t1Setting the courier to arrive at the courier needing helpThe time of the place, the time of the courier arriving at the courier place needing help is determined by the distance of the courier arriving at the courier place needing help, t2Setting the time for finishing the work, wherein mu is an adjusting coefficient;
the total workload of a courier is
The total workload of the two couriers is
The other two total workloads are equal, then
Order to
To make t2＜t0Then, then
When the time spent by the help-carrying courier to arrive at the courier needing help is more than that
At this point, the losses are higher than the benefits to be gained, and no further deployment will take place.
9. The express logistics management method and system based on the block chain technology of claim 8, wherein: in the step S4, the specific working process of adjusting the number of the couriers is as follows:
s4-1, when the number of the couriers of the website is less than y, the website will transmit the number of the missing couriers and the directions of the missing couriers into the database, and when the number of the couriers of the website is more than y, the number of the excess couriers and the directions of the excess couriers will be transmitted into the database;
s4-2, after uploading, the website will receive the data uploaded from other websites, and the website lacking the courier will apply for the dispatch of the courier to the website with more couriers nearest;
s4-3, after receiving the application, the website of the multi-output courier confirms to contact the courier to go to the area lacking the courier and renewedly update the database;
and S4-4, the website lacking the courier renews the database after the application is confirmed.
10. The express logistics management method and system based on the block chain technology of claim 9, wherein: in the step S5, the specific way for the website to notify the courier is as follows: through the data sending module, adjustment data are sent to the courier terminal module after the number of couriers is adjusted among the network points, the data receiving module receives the adjustment data sent by the network points and displays the adjustment data through the data display module, and the couriers go to corresponding places to work according to instructions of the courier terminal module after receiving the data.
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