JPH0921231A - Working time calculation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the estimation of time by predicting the operating procedure of a specified work utilizing an operating procedure comprising multiple basic operations the required time for which is already known and the work space information and amount of materials information obtained when work drawings by CAD are prepared. SOLUTION: Operating procedure information in which operating procedures for unit work are disassembled into multiple basic operations the required time for which is already known, work space information on work site in which unit work is carried out, CAD information in which amount of materials information on the object to be worked is stored, and existing time information in which the basic operations are carried out under the working site space conditions are stored in advance in a database 1. Next a calculation part 2 takes out necessary data from the database 1, predicts the operating procedure for a specified work, disassembles it into basic operations, and calculates the required time for the basic operations according to the work space conditions. Then, in this case, an interface part 3 displays the work space information on a three-dimensional screen, and prepares a proper procedure while simulating the operating procedure. Thus the working time can be predicted accurately and easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work time calculation method, and more particularly to a work time calculation method for estimating in advance the time required for a target work in the construction field.

[0002]

2. Description of the Related Art Conventionally, in the construction field, there are empirical judgment, statistical method, and fixed time method as methods for estimating work time in advance. The empirical determination is a method of estimating the work time by comparing the past work condition and the new work condition from the past results of estimations performed by the person in charge.

The statistical method is a method in which past performance values are analyzed for each work condition and work content, and the working time is estimated by using the obtained standard value. The predetermined time method is a method of estimating a working time by using a time required for human motion given in advance.

[0004]

However, in fields such as the construction field, where the repeatability of work is small in the production of a single item, the knowledge of an expert who has sufficient estimation experience is necessary for empirical judgment. However, there are problems that the statistical method requires a large amount of actual data that can be judged with high reliability, and that the reliability of the estimated value decreases for new work that has no similar example in the past.

In order to apply the fixed time method, a detailed work procedure up to the operation level must be described in advance. However, regarding this as well, in the construction field, it is difficult to predict detailed work procedures in advance because it is a single item production, is affected by the work environment, etc., and the work procedures are different each time. There was a problem that it was difficult to apply. In addition, even if you try to guess the work procedure using drawings, you can obtain information about the target object (dimensions, weight, etc.), but information about the surrounding work environment (size of work area, materials, storage space for road tools, etc.) It was difficult to predict the work procedure up to the motion level to which the default time method can be applied, because it is not possible to obtain.

The present invention has been made in view of such a problem, and provides conditions for determining a work procedure when predicting a work procedure in advance, provides a prediction support method, and calculates a work time. It is an object of the present invention to provide a work time calculation method for accurately calculating work time using a predetermined time method which is one of the above.

[0007]

In order to achieve the above object, the present invention provides a work time calculating method for calculating a work time of a predetermined work in a construction work such as a construction work. Operation procedure information obtained by disassembling a procedure into a plurality of basic operations of known required time, CAD information in which the work space information of the work area where the unit work is performed and the physical quantity information of the work target are stored, and the basic operation of the work area Pre-stored time information, which is the required time when performed under the space conditions, is stored in advance as a database, and the operation procedure of the predetermined work whose work time is to be calculated is obtained from the CAD information. Of the physical quantity information as the support information, the predicted operation procedure is decomposed into the basic operation of the operation procedure information, and the decomposed basic operation is the space condition of the workplace. Determined based on the time required when I went under the predetermined time information, by adding the time required for each basic operation determined the are and calculates the operation time of the predetermined operation.

[0008]

According to the present invention, most of construction drawings for construction work and the like are currently CAD (computer aided design).
n), the work space information of the workplace and the physical quantity information of the work target (the mass, the size of the work target, the
Paying attention to the fact that the shape etc.) can be easily obtained, and using this CAD information, it is difficult to accurately predict the work procedure of the predetermined work because the work space environment changes each time especially in single item production. The work time of work is calculated.

According to the present invention, the operation procedure information in which the operation procedure of the unit work is decomposed into a plurality of known basic operations of a predetermined time, the work space information of the work place where the unit work is performed, and the physical quantity information of the work object are provided. The stored CAD information and predetermined time information which is a required time when the basic operation is performed under the space condition of the workplace are stored in advance as a database. Then, the necessary information is taken out from the database, the operation procedure of the predetermined work whose work time is to be calculated is predicted, the predicted operation procedure is decomposed into the basic operation, and the required time of the basic operation according to the workspace condition of the workplace. To calculate.
At this time, since the operation procedure of the predetermined work is predicted by using the CAD information as the support information, it is possible to accurately and easily predict the operation procedure even in the case of the work in which the work space environment changes each time in the single-item production. . Further, by displaying the work space information of the work space obtained from the CAD information on the three-dimensional screen, it is possible to perform the work procedure while simulating the work procedure of the work, so that a more appropriate work procedure can be created. .

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a working time calculating method according to the present invention will be described below in detail with reference to the accompanying drawings. FIG.
It is a block diagram which shows one Example of the work time calculation apparatus to which the work time calculation method which concerns on this invention is applied.

As shown in the figure, the work time calculating device comprises a database unit 1, a computing unit 2 and an interface unit 3. The database unit 1 is composed of a recording medium such as a floppy disk and provides image data and message data 1C to be output to the monitor of the interface unit 3 as well as data necessary for various calculations performed by the calculation unit 2. .

As shown in FIG.
CAD information 1A related to the workplace (that is, information indicating the position (seating) of beams, steel frames, etc. for displaying a 3D image of the workplace, information indicating the weight and dimensions of the pipes and the like installed in the workplace), a certain unit Operation procedure data 1B indicating a basic operation procedure (operation procedure) required to perform a work (a work divided into some divisions), a basic operation condition required to perform a unit work (This condition is a condition added to the motion (for example, the quality of the passage condition with respect to the motion of walking), and is hereinafter referred to as motion condition.) Message data 1C for the user to input in an interactive manner, Stored is preset time data 1D that defines the time required to perform a basic motion such as walking under predetermined motion conditions.

An example of the contents of the operation procedure data 1B and the message data 1C is shown in FIG. FIG. 1A shows the operation procedure data 1B referred to by the calculation unit 2 when the user specifies the chain block setting in the unit work name and tries to calculate the time required for the chain block setting.
And the contents of the message data 1C are shown. As shown in the same figure, for the unit work of setting the chain block, the operation procedure data 1B referred to stores the contents of "getting the chain block" and "attaching the chain block". . In other words, this operation procedure data 1B has the chain block setting
It shows that the basic operation procedure is to take the chain block and then attach the chain block.

On the other hand, in the message data 1C, "Where is the road tool storage space?", "What is the type of chain block? A: 2t B: 3t C: Lever block ...", "Determine the mounting position" The contents of the message such as "Please,""Do you need another? (Y / N)" are stored. These messages indicate the contents of the operating conditions that the user should decide regarding the basic operations that make up the unit work called chain block setting, and the user interactively determines these operating conditions according to these messages displayed on the monitor screen. I am able to do it.

Similarly, FIG. 3B shows a case where the user specifies carry-in as a unit work name and tries to calculate the time required for carry-in. Further, FIG. 3 shows an example of the contents of the predetermined time data 1D. The same figure (A) has shown the content of predetermined time data 1D with respect to the basic motion called walking. As shown in the figure, this existing data indicates the walking time according to the passage condition with respect to the walking distance. For example,
If the walking distance is 7 to 20 m and the passage is good,
This walk takes 12 seconds.

FIG. 1B shows the contents of the preset time data 1D for the basic pulling operation. As shown in the figure, this existing data indicates the number of times of pulling according to the amount of force with respect to the pulling time. As described above, the predetermined time data 1D stores the time required for the basic operation according to the operation condition for various basic operations.

The computing unit 2 in FIG. 1 is, for example, a computer that controls the input / output of various data with respect to the database unit 1 and the interface unit 3 and refers to the data from the database unit 1 and the interface unit 3 to perform various operations. Calculate. As shown in the drawing, the calculation unit 2 displays a CAD image, a message, a display function 2A for displaying character information such as a calculation result, a database reference function 2B for referring to data in the database unit 1, and a work time for calculating the work time. Conditions (CAD information, unit work name, operation procedure, operation conditions)
For the condition stored in the input unit 2C and the input unit 2C, the database reference function 2B refers to the preset time from the preset time data 1D of the database unit 1 and has a calculation function 2D for calculating the working time. There is.

The interface unit 3 comprises a display device having a terminal device such as a monitor and an input device having a terminal device such as a keyboard and a mouse, and the display device is a CAD.
It has a CAD screen display section 3A for displaying an image, a message display section 3B for displaying a message, and an output display section 3C for displaying a calculation result. Also, the input device is
It has a work operation input function 3D for inputting a unit work name for calculating a work time and an operation condition.

Next, the operation of the working time calculating device will be described with reference to the flowchart of FIG. Incidentally, the pipe alignment work will be described as an example using the monitor screen shown in FIG.
First, a floppy disk in which the CAD information 1A of the work area to be analyzed is recorded is loaded into the disk driver, and the place where the work is performed is designated (step S10). For example, input from the keyboard such as "1F Southeast corner". When the work place is designated in this way, the computing unit 2 uses the database reference function 2B to C of the database unit 1.
With reference to the AD information 1A, the display function 2A displays the 3D image of the designated workplace on the CAD screen display unit 4 shown in FIG. 4 (step S12).

Next, the user decomposes the work whose work time is to be analyzed into unit works, and inputs the name of the unit work to be performed first into the unit work name input section 5 on the monitor screen shown in FIG. S14). When the unit work name is input, the operation unit 2 causes the database reference function 2B to operate the operation procedure data 1 corresponding to the input unit work name.
B is searched from the database unit 1 (step S1)
6). Then, the procedure of the basic operation constituting the unit work is determined from the operation procedure data 1B. Then, the message data 1C corresponding to the unit work is searched, and a message prompting the user to input the operation condition of each basic operation constituting the unit work is displayed on the message display portion 7 of the monitor screen (step S18).

Explaining with the screen shown in FIG. 4, the screen shown in FIG. 4 has already calculated the working time up to the fourth unit work in the work procedure for pipe alignment, and next, as the fifth unit work. It shows how to calculate the working time for setting the chain block. In the figure, two workers are involved in the work (the number of workers can be set at the beginning),
The worker shown in Fig. B is currently installing the piping,
The worker shown in FIG. A is located on the 1st floor where the road tool yard is located. Here, if chain block setting is input to the unit work name input section 5 as shown in FIG.
The message data 1C corresponding to is sequentially displayed on the message display unit 7. For the unit work of chain block setting, the messages shown in FIG. The user inputs operating conditions according to this message. For example, as shown in the figure, when "Please determine the chain block mounting position" is displayed, the position of the pointer 8 in the figure is operated with the mouse to specify the mounting position.

In this way, the user inputs operating conditions with a keyboard, a mouse or the like according to the message displayed on the message display section 7 (step S2).
0). As described above, the calculation conditions necessary for calculating the work time of the unit work such as the operation procedure and the operation conditions determined by the database unit 1 and the user are the input unit 2 of the calculation unit 2.
It is recorded in C (step S22).

When the operation condition input work by these users is completed and the setting of the calculation conditions necessary for the calculation of the work time is completed, the calculation unit 2 refers to the preset time data 1D according to these calculation conditions and performs the work. A parameter required for obtaining the time is calculated, and a preset time that matches this parameter is obtained (step S24). For example, when the chain block setting is performed as described above, the walking distance of the passage in which the worker A goes to the road tool yard to get the chain block and the walking distance of the passage that carries the chain block from the road tool yard to the attachment position are set. It is calculated from the CAD information 1A, and the time required to move these walking distances is calculated from the predetermined time data 1D based on the passage condition at each walking distance and the weight of the chain block. In addition, FIG.
Although the predetermined time data 1D of the walking shown in is not created in consideration of the weight of the transported object, if it is assumed that the walking speed does not depend on the weight of the chain block, for example, the worker A is If the walking distance to the chain block mounting position via the tool storage is 25 m and the passage condition is poor, it takes 27 seconds to transport the chain block to the chain block mounting position.
Similarly, the time for attaching the chain block to the attachment position can be determined by the weight of the chain block and CAD information 1A.
It is calculated based on the environmental conditions (operating conditions) of the installation location, etc.

In this way, the time required for the unit work is obtained for each basic operation, the total is calculated, and the total is displayed on the analysis result display unit 6 (step S26). As described above, in the same manner, when the user sequentially inputs the work times required for all the unit work required for the target work to the unit work name input unit 5, the work time is calculated for all the unit work.
The results of the work time of these unit work are displayed in the analysis result display unit 6
And the total sum of these working times is displayed on the analysis result display unit 6. As a result, the total work time required for the target work is obtained.

As described above, if the CAD is sufficiently designed as in the time of additional work, the work time can be predicted even for new work contents with no past record, and it can be used for work planning such as cost estimation. . It should be noted that, in the above-mentioned embodiment, the explanation was made as the prediction of the working time, but since this is a simulation using the working procedure as a parameter, an apparatus for examining the optimal working procedure with the working time as the object of evaluation. Can also be applied as

[0026]

As described above, according to the work time calculating method of the present invention, the CAD work information is used as the support information to predict the operation procedure of the predetermined work. Even in the case of work that changes from time to time, the work time can be accurately and easily predicted.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a work time calculation device to which a work time calculation method according to the present invention is applied.

FIG. 2 is an explanatory diagram showing an example of contents of operation procedure data and message data.

FIG. 3 is an explanatory diagram showing an example of contents of preset time data.

FIG. 4 is an explanatory diagram showing a monitor screen of the working time calculation device.

FIG. 5 is a flowchart showing an operation of the work time calculating device.

[Explanation of symbols]

 1 ... Database part 1A ... CAD information 1B ... Operating procedure data 1C ... Message data 1D ... Default time data 2A ... Display function 2B ... Database reference function 2C ... Input part 2D ... Calculation function 3A ... CAD screen 3B ... Message display part 3C ... Output display section 3D ... Work motion input function

Claims (2)

[Claims] 1. A work time calculating method for calculating a work time of a predetermined work in a construction work such as a construction work, in which the operation procedure of the unit work of the construction work is decomposed into a plurality of basic movements of known required time. Information, CAD information in which the work space information of the work space where the unit work is performed and the physical quantity information of the work target are stored, and predetermined time information which is the time required when the basic operation is performed under the space condition of the work space. Are stored in advance as a database, and the operation procedure of a predetermined work whose work time is to be calculated is described in the CAD
The work space information of the workplace and the physical quantity information of the work target obtained from the information are predicted as support information, and the predicted operation procedure is decomposed into the basic operation of the operation procedure information, and the decomposed basic operation is the space of the workplace. A work time calculating method characterized in that a work time required under the condition is obtained based on the predetermined time information, and the work time of the predetermined work is calculated by adding the required time of each basic motion thus obtained. . 2. The work time calculating method according to claim 1, wherein the work space information of the work place obtained from the CAD information is displayed on a three-dimensional screen.