JP2015069505A - Carriage and conveyance work measurement method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carriage or the like that can measure conveyance work suitably.SOLUTION: A carriage 10 comprises an information processing device 1, a rotation number measurement device 2, and a load sensor 3. The rotation number measurement device 2 measures the number of rotations of a wheel 5. The load sensor 3 measures the weight of a load on a loading space 4. The information processing device 1 acquires the weight of the load 8 for every predetermined distance at which the carriage 10 moves to record conveyance data 20 including movement distance 22, load weight 23, load conveyance movement distance 24, conveyance volume 25, movement distance other than for load conveyance 26, and the like.

Description

  The present invention relates to a carriage or the like that performs measurement related to a transfer operation.

  In various factories, in order to improve production efficiency and lower production costs, layouts of production facilities and the like in a production site are improved in consideration of the amount of work. In particular, the material and parts transportation work greatly affects the production efficiency, so the layout is determined in consideration of the transportation route and time.

  Since it is used for determining the layout as described above, various measurements related to the transfer work may be performed. Patent Document 1 describes a cart transport work system in which means for generating position information and operation information of a cart is provided in the cart itself for measuring the transport operation, and the moving speed of the cart is calculated from the obtained information. Yes.

JP 2010-108312 A

  In the transport work as described above, it is also important how much the load is carried from the viewpoint of the work amount of the worker. However, in the prior art, there is a problem in that the weight of the load cannot be acquired, and the moving distance of the carriage during the load transportation cannot be distinguished from the moving distance of the empty carriage that does not carry the luggage.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a carriage or the like that can suitably perform measurement related to a transfer operation.

  A first invention for achieving the above-described object is a cart for transporting a load, measuring a travel distance measuring means for measuring a travel distance of the cart, and measuring a load weight on the cart. And a weight measuring means.

  According to the present invention, since the moving distance of the carriage and the weight of the load can be measured, the data related to the transfer work can be created from these values. From this data, useful information can be obtained regarding the amount of work in the transfer work.

Further, it is desirable that the movement distance measuring means measures the amount of rotation of the wheel of the carriage.
Thus, the moving distance can be suitably obtained with a simple configuration.

In addition, it is desirable to further include an information processing device that acquires the weight of the load every time the carriage moves a predetermined distance. Alternatively, it is desirable to further include an information processing device that acquires the travel distance of the carriage and the weight of the load at predetermined time intervals.
As a result, it is possible to easily link the moving distance and the load weight, and it is effective in recording various data relating to the conveyance work.

The information processing apparatus preferably records the movement distance and the load weight as conveyance data.
As a result, data related to the transfer work can be recorded in the cart, and the data can be displayed and confirmed on the spot.

In addition, the information processing apparatus is configured to transfer a baggage transfer movement distance indicating a distance traveled by the cart loaded with the load, and a product of a distance traveled by the cart loaded the load and a load weight of the load. It is desirable to record the quantity as the transport data.
As a result, it is possible to obtain the load transfer distance and the transfer amount, which are important data from the viewpoint of the work amount, which is effective in the analysis of the transfer work.

It is desirable for the information processing apparatus to determine whether or not the package weight is equal to or greater than a predetermined threshold.
As a result, various data can be recorded by clearly distinguishing between the state of carrying a load and the state of not carrying a load.

  2nd invention is a conveyance work measuring method using the trolley | bogie which conveys a luggage | load, Comprising: The step which measures the movement distance of the said trolley using the movement distance measurement means with which the said trolley was equipped, and the said trolley are equipped. A weight measuring means for measuring the weight of the load on the carriage.

  According to the present invention, it is possible to provide a cart or the like that can suitably perform measurement related to the transfer work.

The figure which shows the trolley | bogie 10 of 1st Embodiment. The figure which shows the conveyance data 20 Diagram showing measurement procedure for transport work Diagram showing an example of transfer work The figure which shows the example of the conveyance data 20 The figure explaining 2nd Embodiment

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
(1. Dolly 10)
First, a cart 10 according to an embodiment of the present invention will be described with reference to FIG. A cart 10 shown in FIG. 1 is one in which an operator pushes the handle 6 with the load loaded on the loading platform 4 or moves the handle 6 by pulling the handle 6 slightly forward. A number measuring instrument 2 (moving distance measuring means), a load sensor 3 (weight measuring means) and the like are provided.

  As the information processing apparatus 1, for example, a computer including a control unit and a storage unit can be used. The information processing apparatus 1 is connected to the rotation speed measuring device 2 and the load sensor 3 and records conveyance data, which will be described later, in the storage unit from data measured by these.

The rotation speed measuring instrument 2 is an encoder or the like that measures the rotation amount of the wheel 5 of the carriage 10. As the amount of rotation, the number of rotations, the rotation angle, and the like can be measured. It shall be.
The load sensor 3 measures the weight of the load loaded on the loading platform 4.

  In this embodiment, every time the wheel 5 rotates by a predetermined number of revolutions, the information processing apparatus 1 moves the travel distance 22, the load weight 23, the load transport distance 24, the transport amount 25, the load transport as the transport data 20 shown in FIG. The outside movement distance 26 is recorded.

The movement distance 22 is the movement distance that the carriage 10 has moved.
The luggage weight 23 is the weight of the luggage placed on the carriage 10.
The load transport movement distance 24 indicates the distance traveled by the carriage 10 with the load placed.
The transport distance 25 indicates the product of the distance traveled by the carriage 10 with the load placed and the load weight 23 of the load.
The movement distance 26 outside the parcel conveyance indicates the distance that the carriage 10 has moved in a state where no parcel is loaded.

(2. Measurement of transfer work)
Next, the measurement of the conveyance work by the cart 10 of this embodiment will be described with reference to FIG. FIG. 3 is a diagram illustrating a procedure of the conveyance work measurement, and S101 to S106 in FIG. 3 are processes performed by the information processing apparatus 1.

  In the present embodiment, when the operator moves the carriage 10, the rotational speed measuring device 2 measures the rotational speed of the wheel 5. The rotation speed measuring device 2 transmits a signal to the information processing apparatus 1 when the carriage 10 moves a predetermined distance and the wheel 5 rotates a predetermined rotation speed.

  The information processing apparatus 1 receives this signal (S101), accumulates the moving distance 22 (adds a predetermined distance), and records it in the transport data 20 (S102). Further, the load weight 23 is acquired from the load sensor 3 (S103).

  The information processing apparatus 1 compares the package weight 23 with a predetermined threshold (S104).

  If the load weight 23 is equal to or greater than the threshold (S104; Y), the information processing apparatus 1 determines that there is a load on the loading platform 4, records the load weight 23 in the transfer data 20, and sets the load transfer movement distance 24. Accumulation (addition of the predetermined distance) and accumulation of the transport amount 25 (addition of the product of the predetermined distance and the baggage weight 23) are performed and recorded in the transport data 20 (S105).

  When the load weight 23 is smaller than the threshold (S104; N), the information processing apparatus 1 determines that there is no load on the loading platform 4, records “0” as the load weight 23 in the transfer data 20, and does not transfer the load. The movement distance 26 is accumulated (addition of a predetermined distance) and recorded in the transport data 20 (S106).

  The information processing apparatus 1 repeats the processes of S101 to S106 until the operation of the carriage is finished.

(3. Example of transport data 20)
Next, with reference to FIGS. 4A to 4G and FIG. 5A, a specific example of the conveyance data 20 during the conveyance operation by the carriage 10 will be described. 4A to 4G show the state of the conveyance work along the movement distance of the carriage 10. FIG. 5A is a specific example of the conveyance data 20. In general, the predetermined number of rotations of the wheel 5 is preferably set to correspond to the moving distance of the trolley 10 of about several centimeters in order to obtain highly accurate data. It is assumed that the predetermined rotational speed corresponds to a moving distance 10 m (predetermined distance) of the carriage 10. In addition, the said threshold value shall be 100g.

  Here, it is assumed that the worker places 20 kg of luggage 8 on the carriage 10 and pushes the carriage 10 to start moving at the 0 m point shown in FIG.

  As shown in FIG. 4B, when the carriage 10 moves 10 m and reaches the 10 m point, the moving distance 22 and the load weight 23 are obtained as shown in the first line of the transport data 20 in FIG. In addition, “10 (m)”, “20 (kg)”, “10 (m)”, and “200 (kg · m)” are recorded as the load transportation movement distance 24 and the transportation amount 25, respectively. Since the load weight 23 is equal to or greater than the threshold value, “0 (m)” is recorded as the load transfer movement distance 26.

  As shown in FIG. 4C, in the present embodiment, it is assumed that the operator drops the luggage 8 from the carriage 10 at a point 14 m where the carriage 10 is further moved 4 m. Although the weight of the load 8 on the carriage 10 has decreased, no data is recorded here.

  Thereafter, as shown in FIG. 4 (d), the carriage 10 is further moved 6m, and when it reaches the 20m point moved 10m from the point where the previous data was recorded, the transport data 20 is recorded again by the above procedure. .

  Here, since the load 8 is not on the loading platform 4, as shown in the second row of the transfer data 20 in FIG. 5, only the movement distance 22 and the movement distance 26 outside the load transfer are added by a predetermined distance (10 (m)). And recorded. The package weight 23 is recorded as “0 (kg)”. The previous values are recorded as they are as the load transfer distance 24 and the transfer amount 25.

  In the present embodiment, as shown in FIG. 4 (e), an operator places a 30 kg load 8 on the carriage 10 at a point 28 m where the carriage 10 has further moved 8 m.

  As shown in FIG. 4 (f), the carriage 10 is further moved 2m, and when it reaches the 30m point moved 10m from the point where the previous data was recorded, the transport data 20 is recorded again by the above procedure.

  Here, as shown in the third row of the transport data 20 in FIG. 5, the travel distance 22 and the load transport travel distance 24 are recorded by adding a predetermined distance (10 (m)). “30 (kg)” is recorded in the package weight 23, and a value obtained by adding the product of the package weight 23 and a predetermined distance (300 (kg · m)) is recorded as the transport amount 25. The previous value is recorded as it is for the movement distance 26 outside the parcel conveyance.

  As shown in FIG. 4G, when the carriage 10 is further moved 10 m and reaches a point 40 m, the conveyance data 20 is recorded again by the above procedure. Here, values are added as in the previous case, and as shown in the fourth row of the transport data 20 in FIG. 5, the travel distance 22, the load weight 23, the load transport travel distance 24, the transport amount 25, the load “40 (m)”, “30 (kg)”, “30 (m)”, “800 (kg · m)”, and “10 (m)” are recorded in the transport distance 26.

  The transport data 20 is recorded as described above. The recorded transport data 20 can be output and carried to an external memory or the like, and the work amount of the worker can be analyzed using the data of each item of the transport data 20 by another computer or the like. Such an analysis can be used for a layout plan at a production site. For example, the layout can be improved with reference to the conveyance data 20 so that the package conveyance movement distance 24 and the conveyance amount 25 are reduced.

  In addition, various items can be recorded as the transport data 20. For example, since the change in the load weight 23 means that the load 8 has been unloaded, the number of changes in the load weight 23 can be recorded as the number of unloading of the load 8, and the loading rate can be recorded from the load weight 23. it can. Further, for the carry amount 25, the product may be added and recorded after the weight 23 and the predetermined distance are respectively multiplied by a weighting coefficient. For example, if the coefficient of the luggage weight 23 is made larger, an index that places more importance on the luggage weight 23 can be calculated. Further, it is possible to calculate an average value of the load weight 23.

  As described above, in the cart 10 of the present embodiment, the movement distance 22 and the load weight 23 of the cart 10 can be measured, so that the conveyance data 20 can be created from these values. From this data, it is possible to obtain useful information regarding the work amount in the transfer work, such as the load transfer distance 24 and the transfer amount 25.

  Moreover, in this embodiment, since the rotation amount of the wheel 5 of the trolley | bogie 10 is measured by the rotation speed measuring device 2, the moving distance 22 is suitably obtained with a simple configuration. However, the moving distance 22 of the carriage 10 can be measured by various other methods.

  Further, in this embodiment, each time the carriage 10 moves a predetermined distance, the information processing apparatus 1 acquires the baggage weight 23, so that the movement distance 22 and the baggage weight 23 can be easily linked, and the conveyance data 20 is recorded. It is effective in doing.

  Further, since the conveyance data 20 is recorded by the information processing apparatus 1 of the carriage 10, it is possible to check the data on the spot by displaying the data on a monitor screen (not shown) provided on the carriage 10. .

  Further, in the present embodiment, as described above, since the load transport distance 24 and the transport amount 25 can be recorded as the transport data 20, important data can be obtained from the viewpoint of the work amount, which is effective in the analysis of the transport work. It is.

  In the information processing apparatus 1 according to the present embodiment, since it is determined whether or not the package weight 23 is equal to or greater than a predetermined threshold value, a state where the package is being carried and a state where the package is not being carried are clearly distinguished according to the determination result. Separately, the conveyance data 20 can be recorded.

  However, the present invention is not limited to the above embodiment. For example, the conveyance data 20 is not limited to the above, and an angle detection sensor may be provided on the axle (not shown) of the carriage 10 to record the bending of the movement path, the direction change of the carriage 10 and the like due to the inclination of the axle. is there. Alternatively, an IC tag may be installed on the floor at a predetermined position in the work area, and a tag reader may be provided on the carriage 10 to record the position where the carriage 10 has passed.

  In addition, worker identification information such as worker ID and work ID may be input to the information processing apparatus 1 and linked to the transport data 20 as necessary. It is also possible to record cart identification information such as a cart ID in advance in the information processing apparatus 1 and associate it with the transport data 20. Thereby, management and analysis of data can be performed for each carriage, for each user, and for each operation.

  In this embodiment, data is acquired and recorded every time the carriage 10 moves a predetermined distance, but in addition to this, the rotation number of the wheel 5 and the load weight 23 are received every predetermined time, and the conveyance data 20 It is also possible to record.

  In this case, the travel distance 22 of the carriage 10 is obtained by calculating from the number of rotations of the wheels 5 using a predetermined relational expression. For example, the moving distance 22 is calculated by multiplying the rotation speed of the wheel 5 by the length of the outer periphery of the wheel 5. For the baggage transfer movement distance 24 and the baggage transfer movement distance 26, the difference between the acquired movement distance 22 and the previous movement distance 22 is added according to the baggage weight 23. Further, the transport amount 25 can be recorded by adding a value obtained by multiplying the difference between the acquired travel distance 22 and the previous travel distance 22 by the baggage weight 23 to the previous transport amount 25.

  In order to obtain highly accurate data, the above predetermined time is also preferably set at an interval of usually about 0.1 seconds. However, for each predetermined time, the predetermined time is shown in FIGS. 4 (a) to 4 (g). As shown in the first, third, and fifth lines of the conveyance data 20 in FIG. 5B, the conveyance data 20 is recorded regardless of the movement of the carriage 10. The states shown in 4 (a), (c) and (e) are also recorded.

  In this way, when data is recorded every predetermined time, even when the carriage 10 is in a stopped state, the luggage weight 22 can be reduced by unloading the luggage 8 so that the luggage weight 22 becomes zero or by loading a new luggage 8. It becomes a certain value, and it is possible to know the state of loading and unloading more accurately. Further, there is an advantage that it is possible to know a state where the cart 10 is simply stopped and the baggage 8 is not loaded and unloaded for a long time.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.

  In the second embodiment, as shown in FIG. 6, a cart 10 is provided with wireless communication means (not shown), and is connected to a server 30 provided in a management room or the like so as to be communicable.

  Then, the travel distance 22 and the package weight 23 acquired in the same manner as described above are transmitted to the server 30, and the server 30 calculates the package transport travel distance 24, the transport amount 25, the transport distance outside the package transport 26, etc. The conveyance data 20 is created and recorded.

  As a result, the same effects as in the first embodiment can be obtained, and there is an advantage that the cost of the carriage 10 can be reduced, for example, the memory size of the information processing apparatus 1 can be reduced.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these are naturally within the technical scope of the present invention. Understood.

1: Information processing device 2: Rotational speed measuring device 3: Load sensor 5: Wheel 10: Dolly 20: Transport data

Claims (8)

A carriage for carrying luggage,
A moving distance measuring means for measuring the moving distance of the carriage;
Weight measuring means for measuring the weight of the load on the carriage;
A carriage characterized by comprising:   2. The carriage according to claim 1, wherein the moving distance measuring means measures a rotation amount of a wheel of the carriage.   The cart according to claim 1, further comprising an information processing device that acquires the weight of the load every time the cart moves a predetermined distance.   The trolley according to claim 1 or 2, further comprising an information processing device that acquires a travel distance of the trolley and the weight of the load at predetermined time intervals. The information processing apparatus includes:
The cart according to claim 3 or 4, wherein the travel distance and the load weight are recorded as transport data. The information processing apparatus includes:
Recorded as the transport data is a load transport movement distance indicating a distance traveled by the cart loaded with the load, and a transport amount indicating a product of the distance traveled by the cart loaded and the load and the load weight of the load. The cart according to claim 5. The information processing apparatus includes:
The cart according to claim 6, wherein it is determined whether or not the load weight is equal to or greater than a predetermined threshold value. A method for measuring a transport operation using a carriage for transporting luggage,
Measuring the travel distance of the cart using the travel distance measuring means provided in the cart;
A weight measuring means provided on the carriage measures the weight of the load on the carriage;
A conveyance work measuring method comprising:

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