JP5355662B2 - Cable length calculation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly-versatile cable length calculation device which can prevent the purchase of an unnecessary cable, reduce a calculation time of a remaining length of the cable, and improve calculation accuracy. <P>SOLUTION: The cable length calculation device for calculating the length of the cable A wound around a drum B includes: an input part 2 which inputs, for example, a drum specification such as a drum diameter of the drum B and an axial length, a cable specification such as an outer diameter of the cable A, and state information such as an outer circumferential length of the cable wound around the drum B; a length center processing part which calculates the length of the cable A based on the drum specification, the cable specification and the state information inputted by the input part 2; and a display part which outputs a calculation result calculated by the length calculation means. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention relates to a cable length calculation device that can easily know the remaining amount of electric wires, control cables and the like wound around a drum.

  Conventionally, in order to grasp the remaining amount of the cable wound with the electric wire and the control cable during the construction and after the construction, it is necessary to measure the outer circumference of the cable wound around the drum and confirm the number of windings. However, when the remaining amount of the cable is large, there has been a problem that it takes time and labor for the wire drawing work for confirming the number of windings. In addition, since the length of the cable wound around the drum is different between the center side and the outer side of the drum, there is a problem that the accuracy is insufficient when the calculation formula of outer circumference × number of turns is used.

  As a method of solving such a problem, for example, a method of displaying a scale on a drum and calculating a remaining amount using a conversion table (for example, see Patent Document 1) or a method of using a cable with a scale The above problem has been solved.

JP 2009-1113880 A

  However, conventional drums displaying scales have poor versatility, and generally purchased cables have a problem that they are not practical in that the drums with scales are hardly employed.

  In addition, conventional cables with scales are newly purchased by specifying “with scales” separately from the stock at the time of cable purchase. I don't know how much is left.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cable length calculation device that can prevent the purchase of unnecessary cables with high versatility, reduce the remaining cable calculation time, and improve the calculation accuracy.

In order to solve the above problems, a first aspect of the invention, a cable length calculation device that calculates the length of the cable wound around the drum, comprising a body diameter and the axial length of the drum drum specification, cable specifications and the outer diameter of the cable, the state information including the circumferential length of the cable in the state wound around the said drum, comprising: input means for inputting a drum specifications input by the input means Based on a cable specification and status information, the length calculation means for calculating the length of the cable, and an output means for outputting the calculation result calculated by the length calculation means, the input means, A reading means for reading each specification from the drum and the cable; and a photographing means for photographing an image of the cable wound around the drum. The length calculating means is photographed by the photographing means. A state information calculation unit that calculates state information including an outer peripheral length of the cable based on the obtained image, the drum specification of the reading unit, the cable specification, and the state information calculated by the state information calculation unit. Based on this, the length of the cable is calculated .

  According to the present invention, only by inputting the drum and cable specifications and the status information such as the outer peripheral length of the cable by the input means, the length calculating means automatically calculates the remaining amount of the cable based on the information. .

In addition, according to the present invention, it is possible to easily input data using an imaging means or a reading means for artificial numerical input by the input means.

  According to the first aspect of the present invention, the length calculation means is automatically set based on the data just by inputting the state information such as the drum specification, the cable specification, and the outer peripheral length of the wound cable by the input means. Since the remaining amount of cable is calculated, it is possible to prevent the purchase of unnecessary cables with high versatility and to shorten the remaining time for calculating the remaining amount of cable. Moreover, since the calculation is based on the state information, it is possible to obtain a calculation according to the state of the cable wound around the drum, that is, a more accurate calculation result.

In addition , since an artificial numerical value input by the input means can be easily input by the photographing means or the reading means, it is possible to shorten the input time of various information and to improve the calculation accuracy by preventing input mistakes.

It is a schematic block diagram showing a cable length calculation device according to an embodiment of the present invention. It is an external view which shows the external appearance which actualized the cable length calculation apparatus of FIG. It is a figure which shows the input screen of the rough specification by the main display part of FIG. 2, (a) has shown selection of the electric wire type, (b) has each shown selection of the control cable type. It is a figure which shows the input screen of the further detailed specification to the input specification of FIG. 3, (a) shows selection of cable size, (b) shows selection of the number of wire cores, (c) shows selection of drum specification, respectively. ing. It is a figure which shows the input screen of the cable status information currently wound around the drum, (a) is input of the cable outer periphery length wound, (b) is the input of the outer periphery number of the cable wound halfway. Respectively. It is a figure which shows the display screen of a calculation result. It is the figure which showed the relationship between the cable and drum which are measured by the input of FIG. It is a schematic block diagram which shows the cable length calculation apparatus which concerns on other embodiment of this invention. It is an external view which shows the external appearance which actualized the cable length calculation apparatus shown in FIG.

  The present invention will be described below based on the illustrated embodiments.

(Embodiment 1)
FIG. 1 is a schematic block diagram showing a cable length calculation device according to an embodiment of the present invention. As shown in FIG. 1, the cable length calculation device includes an input unit 2 for inputting various data, a data storage unit 3 for storing the data, a program storage unit 4 for storing programs for performing various calculations, A central processing unit 1 that calculates a predetermined value by a program in the program storage unit 4 based on the input data, and a display unit 5 that displays a calculation result by the calculation are provided.

  Here, the input unit 2 is state information such as a drum specification such as a drum diameter and an axial length described later, a cable specification such as an outer diameter of the cable, and an outer peripheral length of the cable wound around the drum. Are input means for inputting data such as a keyboard, buttons, or a mouse. Note that the input unit 2 is not required by touch-type input on the display unit 5, but in addition to the input of various data described above, the input unit 2 should be installed as a means for inputting conditions such as a correction program for the device main body and reset. Is also possible.

  The data storage unit 3 is a memory device that accumulates data. The data storage unit 3 stores data input by the input unit 2 and can perform processing such as calling, correcting, and deleting.

  The program storage unit 4 stores a program (calculation formula) for calculating the cable length from various conditions, and is output to the central processing unit 1 according to various data.

  The central processing unit 1 receives a program from the program storage unit 4 based on state information such as a drum specification, a cable specification, and an outer peripheral length of a wound cable from the input unit 2 and the data storage unit 3, and the cable length It is a length calculation means for calculating the length, and the calculation result and the current situation are transmitted to the display unit 5 and displayed.

  The display unit 5 is an output unit that outputs a calculation result calculated by the central processing unit 1, a current state of input data, and the like, and includes a liquid crystal display or the like.

  Next, specific embodiments of such an invention will be described in detail with reference to the drawings. FIG. 2 is an external view showing an external appearance of the cable length calculation device of FIG. In this embodiment, the case where the display unit 5 is a touch panel type and can input various data is taken as an example. As shown in FIG. 2, the cable length calculation device includes a main body 10 formed of a resin material or the like. An auxiliary display unit 13 for displaying the data input status input by the unit 12 is arranged.

  Here, the central processing unit 1, the data storage unit 3, and the program storage unit 4 shown in FIG. On the surface of the main body 10, the main display unit 12 and the auxiliary display unit 13 form the display unit 5 (see FIG. 1), and the main display unit 12 is a touch panel type and also serves as the input unit 2. Note that the input unit 2 in FIG. 1 can be appropriately disposed on the outer surface of the main body 10 in FIG. 2 according to the use situation.

  Further, it is desirable that the main body 10 is formed to have a size that can fit into a pocket, for example. Thereby, the main body 10 can be easily carried to the site where the drum is disposed, and the remaining amount of the cable can be calculated in a short time.

  And operation | movement using the cable length calculation apparatus by such a structure is demonstrated with reference to FIGS. FIGS. 3A and 3B are diagrams showing an input screen for schematic specifications by the main display unit 12 of FIG. 2. FIG. 3A shows selection of the electric wire type and FIG. 3B shows selection of the control cable type. 4 is a diagram showing an input screen for further detailed specifications in addition to the input specifications of FIG. 3, wherein (a) shows the selection of the cable size, (b) shows the selection of the number of wire cores, and (c) the drum. Each shows a selection of specifications. FIG. 5 is a diagram showing an input screen for the cable status information wound around the drum, where (a) shows the input of the outer circumference length of the wound cable, and (b) shows the halfway winding. The input of the number of cable perimeters is shown respectively. FIG. 6 shows a calculation result display screen.

  First, by changing the power switch 11 shown in FIG. 2 from the OFF state to the ON state, as shown in FIG. 3A, the type of the electric wire is displayed on the main display unit 12, and a specific cable is selected from this type. The STEP 1 to be selected is executed. Here, the main display unit 12 sequentially displays selection items such as “bare wire”, “control cable”, and “power cable” corresponding to the type of electric wire, and the operator touches a specific item from this item. This makes it possible to reliably input errors compared to typing letters and numbers with a keyboard or the like. Here, a case where a control cable is selected will be described as an example.

  When a control cable is selected on the main display unit 12 in FIG. 3A, the type of the control cable is displayed on the main display unit 12 as shown in FIG. 3B, and STEP 2 for further selection from this type is executed. The Here, various specification data selected on the main display unit 12 in FIG. 3 are input from the display unit 5 (touch panel) in FIG. 1 and stored in the data storage unit 3 via the central processing unit 1. The stored information (specification data) is displayed as needed by the auxiliary display unit 13 as shown in FIG. Hereinafter, each time data is input to the data storage unit 3, the auxiliary display unit 13 displays the data state and continues displaying until a calculation result is obtained.

  Next, further detailed specifications are input according to the display screen as shown in FIG. 4 based on the input data of FIG. First, when the cable specification in FIG. 3 is input, STEP 3 for selecting the size of the cable is executed as shown in FIG. Further, following the selection of the size, STEP 4 for selecting the number of wire cores is executed as shown in FIG. Then, as a final specification selection, STEP 5 for selecting the size of the drum is executed as shown in FIG.

  As a result, the specifications of the cable and drum are recorded in the data storage unit 2 shown in FIG. 1, and then the cable remaining information is easily calculated by inputting the status information of the cable wound around the drum, which will be described later. It becomes possible to do. Here, the specifications of the cable and the drum can be used while being appropriately read from the data storage unit 3 as necessary by inputting various specifications in advance.

  Next, the status information of the cable actually wound around the drum is input on the input screens of STEP 6 and STEP 7 shown in FIG. First, as shown in FIG. 5A, STEP 6 for inputting the outer periphery of the outermost portion of the control cable wound around the drum is executed. Here, the outer periphery of the outermost part of the cable is the one in which the cable of the first layer is wound around the drum and further overlapped with the second layer. It is the length of the outermost outer periphery. The length of the outer periphery is inputted by actually measuring the cable wound around the drum by the operator. That is, the cable status information is actually measured data that is input by measuring the length of the outermost circumference of the cable wound around the drum. At this time, in STEP 6, it is also possible to program so as to automatically calculate the circumference of the circle only by inputting the diameter of the circumference instead of the length of the circumference (circumference).

  Finally, after the outermost outer periphery of the cable is input, as shown in FIG. 5B, STEP 7 for inputting the outer peripheral number (the number of windings) of the portion wound around the outermost halfway end is as follows. Executed. As a result, the input of all data is completed, and as shown in FIG. 6, the remaining number of cables wound around the drum (700 m in FIG. 6) is calculated. Since the data used in this calculation is stored in the data storage unit 3 described above, it is possible to change numerical values such as changing the line type, changing the drum size, changing the outer circumference measurement value, and changing the number of turns. The remaining quantity can be easily recalculated.

  Here, the calculation of the remaining cable quantity (STEPs 1 to 7) will be described in more detail with reference to FIG. FIG. 7 is a diagram showing the relationship between the cable and the drum measured at the input of FIG. First, as shown in FIG. 7, the “finished outer diameter d” of the cable A is obtained by inputting the cable type (specification) in FIGS. 3 and 4 (STEPs 1 to 4). Also, the “body diameter D” and “inner width H” of the drum B in FIG. 7 can be obtained by inputting the drum specification in FIG. 4 (STEP 5).

By inputting such specifications of the cable A and the drum B, various values are newly calculated and calculated as in the following (1) to (3).
(1): The “number of turns N” of one layer can be calculated by (inner width H) ÷ (finished outer diameter d).
(2): The circumference of the first layer can be calculated by ((finishing outer diameter d) × 2 + (body diameter D)) × π.
(3): The circumference of the nth layer can be calculated by (((finishing outer diameter d) × 2) × n + (body diameter D)) × π.

  Here, ((finished outer diameter d) × 2 + (body diameter D)) in (2) is an equation for obtaining a diameter D1 when the cable is wound around the body diameter D as shown in FIG. Thus, by calculating the circumference of the circle from this diameter D1, the circumference of the first layer (the length of the cable wound once in the first layer) can be calculated. In addition, (3) is the circumference when n layers are further stacked in addition to the first layer of (2), and in FIG. 7 there are two layers, so n = 2, and the outer diameter is Diameter D2.

  Accordingly, the total length obtained by providing the circumference of each layer calculated in (2) and (3) for N turns (internal width H) is the length (remaining amount) of the cable wound around the drum B. . However, the cable A needs to be slightly corrected in consideration of the deformation amount such as the “finishing outer diameter d”. Therefore, in this embodiment, as in STEP 6 and STEP 7 (see FIG. 5) described above, an operator actually measures and inputs the outer peripheral length of the cable wound around the drum so that there is no error. Yes.

  At this time, the operator can measure the outer circumference of the cable using a measure, etc., or the measure may cause further error, so the measurement error is reduced using a dedicated measuring instrument such as a giant caliper. Measure as you do. As another method, the width X shown in FIG. 7 may be measured, and the diameter D2 may be obtained by subtracting the width X from the specification dimension of the drum inputted in advance to calculate the outer peripheral length.

As described above, in this embodiment, by measuring the outer peripheral length of the cable wound around the drum and inputting it so that there is no error, an accurate value (number of layers) is calculated as in (4) below. Thus, the final cable length (remaining amount) is calculated as in (5) below.
(4): ((peripheral length: measured value) ÷ π− (body diameter D)) ÷ (finished outer diameter d) ÷ 2 shows the number of cable layers.
(5): ((Number of turns: N) x (Length of first layer: Perimeter length)) + ((Number of turns) x (Length of second layer)) ··· + ((Number of turns) x (n The length of the layer)) + ((the number of turns of the outermost layer) × (the length of the outermost layer)) is obtained for all the cable lengths.

  That is, just by inputting the length of the outermost layer of the cable and the number of windings of the outermost layer measured in STEP 6 and STEP 7 in FIG. 5, the exact number of layers of the cable can be obtained from the above (4). The cable length corresponding to the number of layers obtained in (1) is automatically calculated, so that the final remaining amount of the cable can be calculated.

  As described above, according to the cable length calculation device, the state information such as the drum specification, the cable specification, and the outer peripheral length of the wound cable A can be input by the main display unit 12 based on the data. Since the central processing unit 1 (length calculation means) automatically calculates the remaining amount of the cable A, it is possible to prevent the purchase of unnecessary cables with high versatility and to reduce the remaining time for calculating the remaining amount of the cable A. . In addition, since the calculation is based on the state information, it is possible to obtain a calculation according to the state of the cable A wound around the drum B, that is, a more accurate calculation result.

(Embodiment 2)
Next, a cable length calculation apparatus according to this embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 is a schematic block diagram showing a cable length calculation device according to another embodiment of the present invention. FIG. 9 is an external view showing the external appearance of the cable length calculation device shown in FIG. In this embodiment, components that are the same as or the same as those in the embodiment shown in FIG. 1 are given the same reference numerals, and descriptions thereof are omitted.

  In this embodiment, as shown in FIG. 8, the same components as those in FIG. 1 are provided, such as a central processing unit 1, a display unit 5, a program storage unit 4, and a data storage unit 2. In this embodiment, unlike the touch panel type configuration of FIG. 1, the input unit 2 includes a camera 2a and an IC reader 2b. In other words, the remaining amount calculation time is shortened by causing the camera 2a and the IC reader 2b of the input unit 2 in FIG. 8 to automatically read the operation input in the touch-type on the main display unit 12 in FIG. The purpose is that.

  And the cable length calculation apparatus which concerns on embodiment of such a structure is equipped with the main body 20 which consists of a resin material etc., as shown in FIG. 9, The camera 2a and IC reader 2b can be connected now to this main body 20. FIG. ing. The main body 20 has the same structure as the main body shown in FIG. 2 except that the camera 2a and the IC reader 2b are connected, and a power switch 11, a main display unit 12, an auxiliary display unit 13, and the like are arranged. In the main body 20, the central processing unit 1 shown in FIG. 8 calculates state information such as the outer peripheral length of the cable A by image processing based on an image photographed by the camera 2a that is photographing means. Information calculation means (not shown) is provided.

  Further, the IC tags A1 and B1 are respectively attached to the cable A and the drum B shown in FIG. 9, and the specifications of the cable A and the drum B are stored in the IC tags A1 and B1, respectively. 20 is read by an IC reader 2 b connected to the No. 20. That is, by using the IC reader 2b, all the inputs on the input screens of STEP1 to STEP5 shown in FIGS. 3 and 4 are unnecessary, and the specifications of the cable A and the drum B are stored in the data storage unit 3 in a short time. Can do.

  On the other hand, as shown in FIG. 9, the camera 2a connected to the main body 20 is a photographing means for photographing the state of the cable A wound around the drum B as an image, and transmits the image to the main body 20. It has become. In the main body 20, the outer peripheral length and the number of turns of the cable are determined based on the image and the reference value (cable size, drum size, etc.) received from the camera 2a by the central processing unit 1 (state information calculation means) in FIG. It is calculated by image processing. That is, by using the image of the camera 2a, it is not necessary to measure and input the outer peripheral length and the number of turns of the cable in STEP6 to STEP7 shown in FIG. 5, so that the status information can be input in a shorter time. .

  Here, the camera 2a uses the measurement string L shown in FIG. 9 to shoot at a position that is always apart from the drum B by a certain distance, so that the measurement string L becomes a reference without comparing with the reference value. The outer peripheral length and the number of turns of the cable can be calculated instantaneously from the image alone. Therefore, whether to use the measurement string L or the reference value can be appropriately determined according to the on-site situation. In addition, when using the string L for a measurement, it is necessary to memorize | store the length in the data storage part 3 previously.

  Therefore, in this embodiment, the input of FIGS. 3 to 5 becomes unnecessary by simply reading the specifications of the cable A and the drum B with the IC reader 2b and taking a video of the cable wound around the drum B with the camera 2a. The calculation result shown in FIG. 6 can be obtained in a short time.

  As described above, according to the cable length calculation device, various numerical values (data) can be easily input by the photographing means (camera 2a) or the reading means (IC reader 2b), and the artificial numerical input by the input means. Therefore, it is possible to shorten the input time of various information and to prevent input errors and improve calculation accuracy.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, the use of the IC reader 2b and the IC tags A1 and B1 has been described. However, it is also possible to use a barcode depending on the use situation.

DESCRIPTION OF SYMBOLS 1 Central processing part 2 Input part 2a Camera 2b IC reader 3 Data storage part 4 Program storage part 5 Display part 10 Main body 11 Power switch 12 Main display part 13 Auxiliary display part A Cable A1 IC tag B Drum B1 IC tag L Measurement string

Claims (1)

A cable length calculation device for calculating the length of a cable wound around a drum,
Drum specification including body diameter and the axial length of the drum, cable specifications and the outer diameter of the cable, and inputs the state information including the circumferential length of the cable in the state wound around the said drum input Means,
Length calculation means for calculating the length of the cable based on the drum specification, cable specification and status information input by the input means;
Output means for outputting a calculation result calculated by the length calculation means;
Equipped with a,
The input means includes
Reading means for reading each specification from the drum and cable;
Photographing means for photographing an image of the cable in a state of being wound around the drum,
The length calculating means includes
Based on an image photographed by the photographing means, it comprises state information calculating means for calculating state information including the outer peripheral length of the cable, and is calculated by the drum specification and cable specification of the reading means and the state information calculating means. And calculating the length of the cable based on the status information.
A cable length calculation device characterized by the above.

Images