CN108304980B - Sorting machine and method and system for configuring waiting time of workpiece supply table - Google Patents

Sorting machine and method and system for configuring waiting time of workpiece supply table Download PDF

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CN108304980B
CN108304980B CN201710020008.8A CN201710020008A CN108304980B CN 108304980 B CN108304980 B CN 108304980B CN 201710020008 A CN201710020008 A CN 201710020008A CN 108304980 B CN108304980 B CN 108304980B
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贺文彬
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Abstract

The application discloses a sorting machine and a method and a system for configuring waiting time of a workpiece supply table, wherein the method for configuring the waiting time of the workpiece supply table comprises the following steps: acquiring parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys; the supply station average wait time T is determined according to parameter A, B, S, V. The configuration method is simple in mathematical model and intuitive and reliable in calculation result; by the configuration method, the average waiting time of each workpiece supply table on the sorting machine and the cargo handling capacity in unit time can obtain an accurate numerical value, the regulation and control of site cargo and personnel of the sorting machine are facilitated, the reasonable utilization rate of resources in cargo sorting is improved, and the production cost is reduced.

Description

Sorting machine and method and system for configuring waiting time of workpiece supply table
Technical Field
The present disclosure relates generally to the field of logistics, and more particularly to the field of automated sorting, and more particularly to a method and system for configuring waiting time of a sorting machine and a supply table.
Background
At present, the automatic sorting machine is very commonly applied in the logistics industry, and each transfer station needs to be configured with the automatic sorting machine to sort the goods. The amount of processed goods per unit time of the sorting machine is calculated based on the lead-in efficiency of the feeder table.
The design import efficiency of the workpiece supply table of the existing automatic sorting machine is calculated based on the situation that the carrying trolley is completely empty. However, in practice, the packages on the carrier cart cannot be completely unloaded after 1 cycle, and a small number of packages will remain on the cart for 1 cycle, after 2 or more cycles, and the package bar codes will not be recognized by the sorting system until they are forcibly unloaded to a particular location. In this case, the express items will occupy the position of the carriage, and after the carriage is occupied, the delivery station will wait for the next carriage or carriages to be empty before the prepared express items can be transported to the delivery carriage. Thus, the efficiency of introduction is reduced.
Therefore, the unit time processing amount of the whole sorting machine cannot be correctly calculated due to the fact that the lead-in efficiency of the piece supply platform calculated in the state that the trolley is completely empty does not accord with the actual condition, so that the processing time of each batch of goods cannot be correctly estimated, the regulation and control of the field goods amount and the personnel number of the sorting machine are influenced, and the too much or too little regulation and control amount not only influences the processing speed but also increases the production cost.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a sorting machine and a method and system for allocating waiting time of a workpiece feeding table, which can accurately estimate the processing amount of the sorting machine per unit time.
In a first aspect, the present application provides a method for configuring wait time of a workpiece stage, including:
acquiring parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
the supply station average wait time T is determined according to parameter A, B, S, V.
According to the technical scheme provided by the embodiment of the application, the determining the average waiting time T of the workpiece supply station according to the parameter A, B, S, V includes:
respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys1To tB；
According to t1To tBAnd determining the average waiting time T of the workpiece supply station.
According to the technical scheme provided by the embodiment of the application, the term t1To tBDetermining the average waiting time T of the workpiece supply station comprises the following steps:
respectively determining the probability c of continuously waiting for 1 to B trolleys on a workpiece supply platform1To cB；
According to c1To cBWill t1To tBAnd obtaining the average waiting time T of the workpiece supply station by weighted average.
According to the technical scheme provided by the embodiment of the application, the average waiting time t for the workpiece supply table to continuously wait for 1 to B trolleys is determined respectively1To tBThe method comprises the following steps:
determining the time delta t for waiting for a single trolley according to the parameters S and V;
respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys according to the delta t1To tB.
According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps:
determining the supply according to the average waiting time T, the parameter S and the parameter V of the supply tableTime per unit T of the table1The cargo throughput M.
In a second aspect, the present application further provides a system for configuring wait time of a workpiece stage, the system comprising:
an input module configured to input the following parameters: parameters A, B, S and V, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
and the calculating module is configured for calculating the average waiting time T of the workpiece supply station according to the parameter A, B, S, V.
According to the technical solution provided by the embodiment of the present application, the system further includes a display module configured to display the parameter A, B, S, V and the average waiting time T.
According to the technical scheme provided by the embodiment of the application, the computing module is configured to respectively determine the time t for the workpiece supply platform to continuously wait for 1 to B trolleys1To tBAnd according to t1To tBAnd obtaining the average waiting time T of the workpiece supply table.
According to the technical scheme provided by the embodiment of the application, the calculation module is further configured to respectively determine the probability c that the workpiece supply station continuously waits for 1 to B trolleys1To cBAnd according to c1To cBWill t1To tBAnd obtaining the average waiting time T of the workpiece supply station by weighted average.
According to the technical solution provided by the embodiment of the present application, the calculating module is further configured to determine the time Δ t for waiting for one trolley according to the parameters S and V, and determine the time t for continuously waiting for 1 to B trolleys by the workpiece supply station according to Δ t1To tB。
According to the technical scheme provided by the embodiment of the application, the calculation module is further configured to determine the unit time T of the workpiece supply station according to the average waiting time T and the parameters S and V1The cargo throughput M.
The present application also provides a sorter having any of the systems described above configured on each feeder table of the sorter.
The present application further provides a computer-readable storage medium having stored thereon a computer program for:
acquiring parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
the average waiting time T of the feeder table is determined according to the parameter A, B, S, V and displayed.
The value of the parameter A, S, V selected in the method for configuring the waiting time of the workpiece supply table can be directly obtained from the sorting machine, the parameter B can be obtained through manual identification, and can also be automatically obtained through a detection system on the sorting machine, the method for obtaining each parameter is convenient and direct, the configuration method has simple mathematical model, and the calculation result is visual and reliable; by applying the configuration method, the average waiting time of each workpiece supply table on the sorting machine and the cargo handling capacity in unit time can obtain an accurate numerical value, so that the control of the on-site cargo and personnel of the sorting machine is facilitated, the reasonable utilization rate of resources in cargo sorting is improved, and the production cost is reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of a first embodiment of the present application;
FIG. 2 is a flow chart of a second embodiment of the present application;
FIG. 3 is a flow chart of a third embodiment of the present application;
FIG. 4 is a schematic view showing the distribution of the trolleys on the workpiece supply table;
FIG. 5 is a flow chart of a fourth embodiment of the present application;
FIG. 6 is a flow chart of a fifth embodiment of the present application;
FIG. 7 is a schematic block diagram of a sixth embodiment of the present application;
FIG. 8 is a schematic block diagram of a seventh embodiment of the present application;
FIG. 9 is a screen shot of a display module of the supply stand latency calculation system of the application;
in the figure: 10. an input module; 20. a calculation module; 30. and a display module.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In the method for configuring the waiting time of the workpiece supply table, the workpiece supply table is applied to an automatic sorting machine, a plurality of trolleys used for transporting goods are uniformly distributed on the sorting machine, the average time of waiting for the empty trolleys to appear on a single goods on the workpiece supply table is the average waiting time T, the goods put on the workpiece supply table can be put in only when the next empty trolley arrives, when the first trolley is occupied, the workpiece supply table needs to wait for 1 trolley to finish the distance between the trolley and the next trolley, the time is the time delta T that the single trolley passes by is S/V, wherein S is the distance between the trolleys; v is the running speed of the trolley; when several carts are occupied in succession starting from the first cart, the time for the supply station to wait is the time it takes for the several carts to travel their accumulated distance.
Thus, as shown in fig. 1 for the first embodiment of the present application: in a first embodiment of a method for configuring latency of a component feeder, the method includes:
s100, obtaining parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
s200, determining the average waiting time T of the workpiece supply station according to the parameters A, B, S and V.
As shown in fig. 2 for a second embodiment of the present application: in a preferred embodiment, the determining the average waiting time T of the workpiece supply station according to the parameter A, B, S, V includes:
s210, respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys1To tB；
S220, according to t1To tBAnd determining the average waiting time T of the workpiece supply station.
As shown in fig. 3 for a third embodiment of the present application: in a preferred embodiment, said function according to t1To tBDetermining the average waiting time T of the workpiece supply station comprises the following steps:
s221, respectively determining the probability c that the workpiece supply platform continuously waits for 1 to B trolleys1To cB；
For example:
when B is 1; at this moment, only one trolley on the workpiece supply table is occupied and appears on the first trolley, and then the probability is as follows:
c1＝1/COMNIN(A,B)＝＝1/COMNIN(A,B)；
when 1 < B < A; as shown in fig. 4, the distribution diagram of the trolleys on the workpiece supply platform shows that, when B trolleys in a trolley in a workpiece supply platform are occupied, the probability that the workpiece supply platform continuously waits for C trolleys is that the number of occupied combinations of B-C trolleys in a-C-1 trolleys is divided by the number of occupied combinations of B trolleys in a trolley; namely, it is
cC＝COMBIN((A-C-1),(B-C))/COMNIN(A,B)；
When B ═ a; supply this moment a bench individual dolly whole occupied, the condition that contact B dolly is occupied just then its probability is just can appear this moment:
cB＝1/COMNIN(A,B)＝＝1；
s222, according to c1To cBWill t1To tBAnd obtaining the average waiting time T of the workpiece supply station by weighted average.
As shown in fig. 5 in the fourth embodiment of the present application, the average waiting time t for the feeder table to continuously wait for 1 to B dollies is determined1To tBThe method comprises the following steps:
s211, determining time delta t for waiting for a single trolley according to the parameters S and V;
△t＝S/V；
s212, respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys according to delta t1To tB. Wherein t is1＝1*△t，t2＝2*△t，t3＝3*△t……tB＝B*△t；
Therefore, the average waiting time T of the feeder stage is obtained as follows in step S222:
T＝c1*t1+c2*t2+......+cC*tC+......+cB*tB
when B is 1;
T＝c1*t1＝△t/COMNIN(A,B)＝S/V/COMNIN(A,B)；
when 1 < B < A;
Figure GDA0003017310450000061
when B is equal to a, the compound is,
T＝c1*t1+c2*t2+......+cC*tC+......+cB*tB
＝0*t1+0*t2+......+0*tC+......0*tB-1+1*tB
＝B*(S/V)；
as shown in fig. 6 in a fifth embodiment of the present application: the method for configuring the waiting time of the workpiece supply station further comprises the following steps:
s300, determining the unit time T of the workpiece supply station according to the average waiting time T of the workpiece supply station, the parameter S and the parameter V1Inside ofCargo throughput M.
For example, when neglecting that the carriage on the supply table is occupied, the supply table is in unit time T1Internal cargo throughput M ═ T1V (S/V); the supply table is set up in a unit time T while taking into account the number of occupied carriages on the supply table1Internal cargo throughput M ═ T1/((S/V)+T)；
For example, the current sorting machine is provided with 1 workpiece supply table, a-5 trolleys which are connected end to end are uniformly operated, workers count that B-3 trolleys are occupied on the current sorting machine, the distance between the trolleys on the sorting machine is 0.8m, and the running speed of the trolleys is 2.5 m/s; then Δ t ═ S/V ═ 0.32S;
then the average waiting time of the workpiece supply station
Figure GDA0003017310450000062
In a preferred embodiment, S may be the length of the body of the trolley itself in the direction of travel plus the distance between the trolleys, in order to obtain a more accurate calculation.
Based on the above calculation results, in the above embodiment, the delivery station can process the cargo throughput M ═ T per hour13600/(0.32+0.32) ═ 5625; when the condition that a trolley on the sorting machine is occupied is ignored in the prior art, the hourly cargo handling capacity M of the workpiece supply table is T1And if the result of the calculation is 3600/0.32-11250, the difference between the actual cargo handling capacity per hour of the supply station and the cargo handling capacity when the occupied trolley is ignored is very large.
As shown in fig. 7, which is a schematic block diagram of a sixth embodiment provided by the present application, the present application further provides a system for configuring a waiting time of a component delivery station, where the system includes:
an input module 10 configured to input the following parameters: parameters A, B, S and V, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
and the calculating module 20 is configured to calculate the average waiting time T of the workpiece supply station according to the parameter A, B, S, V.
As shown in fig. 8, which is a schematic block diagram of a seventh embodiment provided by the present application, the system further includes a display module 30 configured to display the parameter A, B, S, V and the average latency T.
In a preferred embodiment, as shown in fig. 9, the three parameters of the cart speed V, the cart spacing S and the cart total number a on the interface shown in the input display box of the component supply station waiting time configuration system are all the design data of the sorting machine, and can be directly obtained. The number B of only occupied trolleys is counted according to the actual use condition on site. The average waiting time data can be obtained immediately after all calculation processes are processed in the background by only manually counting the trolley use data of each field automatic sorting machine by engineers and inputting the data on an interface and clicking the button of 'calculating the average waiting time'.
In a preferred embodiment: the computing module 20 is configured to determine the time t for the workpiece supply station to continuously wait for 1 to B trolleys1To tBAnd according to t1To tBAnd obtaining the average waiting time T of the workpiece supply table.
In a preferred embodiment, the calculation module is further configured to determine the probability c that the delivery station waits for 1 to B carts consecutively, respectively1To cBAnd according to c1To cBWill t1To tBAnd obtaining the average waiting time T of the workpiece supply station by weighted average.
In a preferred embodiment: the calculating module 20 is configured to determine the time t for waiting for one trolley according to the parameters S and V and respectively determine the time t for continuously waiting for 1 to B trolleys by the workpiece supply platform according to the time t1To tB。
In a preferred embodiment: the calculation module is also configured to determine the unit time T of the workpiece supply station according to the average waiting time T and the parameters S and V1The cargo throughput M.
The application also provides a sorting machine, each piece supplying platform of the sorting machine is provided with any one of the piece supplying platform waiting time configuration systems.
As another aspect, the present application also provides a computer-readable storage medium having stored thereon a computer program for: acquiring parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys; the average waiting time T of the feeder table is determined according to the parameter A, B, S, V and displayed.
The computer readable storage medium may be the computer readable storage medium contained in the system described in the above embodiment; or it may be a separate computer readable storage medium not incorporated into the device. The computer readable storage medium stores one or more programs for use by one or more processors in performing the formula input methods described herein.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (9)

1. A method for configuring waiting time of a workpiece supply platform is characterized by comprising the following steps:
acquiring parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
determining the average waiting time T of the workpiece supply station according to the parameter A, B, S, V;
determining the unit time T of the workpiece supply station according to the following formula and the average waiting time T, the parameter S and the parameter V of the workpiece supply station1Cargo throughput M:
M＝T1/(S/V+T)；
the determining the average waiting time T of the workpiece supply station according to the parameter A, B, S, V includes:
respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys1To tB；
According to t1To tBAnd determining the average waiting time T of the workpiece supply station.
2. The method of claim 1, wherein the time t is a function of the latency of the workpiece stage1To tBDetermining the average waiting time T of the workpiece supply station comprises the following steps:
respectively determining the probability c of continuously waiting for 1 to B trolleys on a workpiece supply platform1To cB；
According to c1To cBWill t1To tBAnd obtaining the average waiting time T of the workpiece supply station by weighted average.
3. The method for configuring waiting time of workpiece-supply table according to claim 1, wherein said time t for continuously waiting for 1 to B trolleys by workpiece-supply table is determined separately1To tBThe method comprises the following steps:
determining the time delta t for waiting for a single trolley according to the parameters S and V;
respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys according to the delta t1To tB。
4. A system for configuring wait time for a workpiece stage, comprising:
an input module configured to input the following parameters: parameters A, B, S and V, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
a calculation module configured to calculate an average waiting time T of the workpiece supply station according to the parameter A, B, S, V;
the computing module is further configured to determine the time t for the workpiece supply station to continuously wait for 1 to B trolleys respectively1To tBAnd according to t1To tBObtaining the average waiting time T of the workpiece supply table;
the calculation module is further configured to determine the supply station per unit time T according to the following formula and the average waiting time T, parameters S and V1Cargo throughput M:
M＝T1/(S/V+T)。
5. the supply stand latency configuration system of claim 4,
a display module is also included and configured to display the parameter A, B, S, V and the average latency T.
6. The supply stand latency configuration system of claim 4, wherein the computing module is further configured to determine a probability c of the supply stand continuously waiting for 1 to B carts, respectively1To cBAnd according to c1To cBWill t1To tBAnd obtaining the average waiting time T of the workpiece supply station by weighted average.
7. The supply stand latency configuration system of claim 4,
the calculation module is further configured to determine the time t for continuously waiting 1 to B trolleys by determining the time delta t for waiting one trolley according to the parameters S and V and determining the time t for continuously waiting 1 to B trolleys by the workpiece supply platform according to the time delta t1To tB。
8. A sorting machine, characterized in that a supply table of the sorting machine is provided with a system according to any one of claims 4 to 7.
9. A computer-readable storage medium having stored thereon a computer program for:
acquiring parameters A, B, S and V on the sorting machine, wherein A is the total number of trolleys, B is the number of occupied trolleys between a sorting channel closest to a workpiece supply table and the workpiece supply table in the conveying direction of the sorting machine, B is more than or equal to 0 and less than or equal to A, S is the distance between the trolleys, and V is the running speed of the trolleys;
determining and displaying the average waiting time T of the workpiece supply table according to the parameter A, B, S, V; determining the unit time T of the workpiece supply station according to the following formula and the average waiting time T, the parameter S and the parameter V of the workpiece supply station1Cargo throughput M:
M＝T1/(S/V+T)；
the determining the average waiting time T of the workpiece supply station according to the parameter A, B, S, V includes:
respectively determining the time t for the workpiece supply platform to continuously wait for 1 to B trolleys1To tB；
According to t1To tBAnd determining the average waiting time T of the workpiece supply station.
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