JP2004294312A - Simplified area calculator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simplified area calculator which can easily calculate a paving area. <P>SOLUTION: The simplified area calculator 1 comprises a distance detecting means 2 which detects the rotation of a wheel 13 and outputs distance pulses as distance information at regular intervals, a direction detecting means 3 which detects magnetism and outputs traveling directions as direction information, and a calculation processing means 4 which calculates an area based on the distance information and direction information obtained by moving the wheel 13 around the periphery of an area to be measured. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a simple area calculation device that can easily calculate the area of a paved road or the like.
[0002]
[Prior art]
In the case of constructing a gas pipe or a water pipe that passes under a paved road, the asphalt is once peeled off, the ground is dug up, and then the gas pipe is replaced by a gas company. After the construction is completed, the excavated soil is rebuilt, and the pavement construction company performs pavement on the road. When such pavement work is performed, a pavement work fee is charged to the utility company such as a gas company from the pavement company, and the pavement work fee is calculated according to the pavement area. Conventionally, the measurement of the pavement area has been performed as follows.
[0003]
For measuring the pavement area, a walking measure that measures the distance by the rotation angle of a wheel rolling on the ground was used. Therefore, for example, when measuring the area of the pavement target portion S1 as shown in FIG. 6, the measurer moves the walking measure along each side (a, b, c... Measure it and write it in a memo. Then, returning to the office, the CAD operator creates a pavement target plan view based on the pavement portion outer length recorded in the memo. Then, the pavement target area was calculated from the pavement target plan view.
[0004]
[Problems to be solved by the invention]
However, in such a conventional measuring method, a measurer must measure a pavement target portion for each side while moving a walking measure, and record the length in a memo each time. Was returned to the office and transcribed as data to calculate the area. Therefore, the work is very complicated and hinders the work efficiency. In particular, if the shape of the part to be paved becomes complicated, the work becomes more complicated and the work efficiency is deteriorated.
[0005]
Therefore, an object of the present invention is to provide a simple area calculation device that can easily obtain a result of a pavement area in order to solve such a problem.
[0006]
[Means for Solving the Problems]
A simple area calculating device according to the present invention includes a distance detecting unit that detects rotation of a wheel and outputs a distance pulse as distance information at regular intervals, and an azimuth detecting unit that detects magnetism and outputs a traveling direction as azimuth information. And an arithmetic processing means for calculating an internal area based on the distance information and the azimuth information obtained by moving the wheel along the outer periphery of the predetermined area.
Further, the simple area calculating apparatus according to the present invention is characterized in that the arithmetic processing means calculates an area by obtaining coordinates of a trajectory of the movement of the wheel from the distance information and the azimuth information.
[0007]
Therefore, according to the present invention, the area is calculated only by the measurer moving the target portion along the outer periphery, and the area can be immediately confirmed. Therefore, there is no need to write down the length along each side of the part to be paved or input it to a personal computer as in the past, which makes the work extremely simple, and the area calculation becomes very simple. The required work can be greatly simplified.
[0008]
A simple area calculation system according to the present invention includes a distance detection unit that detects rotation of a wheel and outputs a distance pulse as distance information at regular intervals, and an azimuth detection unit that detects magnetism and outputs a traveling direction as azimuth information. Using a simple area calculating device having an arithmetic processing means for calculating the internal area based on the distance information and the azimuth information obtained by the movement of the wheel along the outer periphery of the predetermined area. Data obtained by the computing device is transferred via wireless communication means, and data is managed by a remote data processing device.
In the simplified area calculation system according to the present invention, the arithmetic processing means displays the distance information and the azimuth information as a two-dimensional barcode image on a liquid crystal display, and the camera of the mobile phone as the wireless communication means. It is characterized in that the data is transferred to the data processing device using the function.
[0009]
Therefore, according to the present invention, conventionally, the value recorded by the measurer in a memorandum is returned to the office and transcribed, or a CAD operator creates a pavement plan from the data. Data management can be performed by a personal computer only by transferring data, and drawings can be easily created from data obtained by a simple area calculator. Therefore, the overall work efficiency can be improved.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of a simplified area calculation device according to the present invention will be described below with reference to the drawings. FIG. 1 is a principle diagram showing a simple area calculation device of the present embodiment. This simple area calculator 1 is configured by incorporating a digital measure 2, a magnetic sensor 3 as a direction potentiometer capable of detecting a direction, and a PDA 4 as a portable information terminal as arithmetic processing means.
[0011]
As shown in FIG. 2, the simple area calculation device 1 has a wheel 13 pivotally supported at the tip of a rod 12 having a handle 11, and the wheel 13 has a distance pulse according to a fixed rotation angle of the wheel 13 rolling on the ground. Is attached. Therefore, the distance pulse transmitted from the digital measure 2 is transmitted every time a predetermined distance L, for example, L = 0.1 m, moves. Therefore, when the measurer M moves the simple area calculation device 1, the distance information a is transmitted from the digital measure 2 to the PDA 4 as shown in FIG.
[0012]
Further, the azimuth information b is transmitted from the magnetic sensor 3 to the PDA 4 in synchronization with the timing of the transmission of the distance pulse. The magnetic sensor 3 is, for example, one in which a signal processing IC is sealed in one package and an amorphous wire is used as a magneto-sensitive medium. The change that increases the impedance is used.
The PDA 4 calculates the current position where the simple area calculation device 1 moves using the distance information a and the direction information b.
[0013]
Calculation of the area of the pavement target portion will be specifically described for a shape as shown in FIG. The measurer M rolls and moves the wheel 13 of the simple area calculation device 1 so as to make a round along the outer periphery of the pavement target portion S2. At this time, a reference point to be the start position and the end position is determined, the simple area calculation device 1 is placed there, and the start switch is pressed. Thereby, the movement data and the direction data are reset. When the simple area calculation device 1 is moved, the distance information “a” is transmitted from the digital measure 2 which has detected the movement distance from the rotation of the wheels 13, and the azimuth information “b” is transmitted from the magnetic sensor 3 to the PDA 4.
[0014]
In the PDA 4, the movement distance of the simple area calculation device 1 is recorded as movement data based on the distance information a. Further, in the PDA 4, the azimuth information b from the magnetic sensor 3 is sent in accordance with the interval of the movement pulse sent as the movement information, and the traveling direction of the simple area calculator 1 is recorded in association with the distance. In such measurement data stored in the PDA 4, for example, distance data and traveling direction data are sequentially recorded as shown in FIG. Accordingly, the distance traveled by the simple area calculation device 1 can be determined from this, and the traveling direction of the simple area calculation device 1 at that position can be determined.
[0015]
The measurer M makes the simple area calculation device 1 make a round along the outer periphery of the pavement target portion S2, and presses the end switch when returning to the reference point. Thus, the reading of the measurement data is completed, the shape of the pavement target portion S2 is specified from the obtained measurement data, and the area thereof is calculated.
[0016]
That is, in the PDA 4, the trajectory of the movement of the simple area calculation device 1, that is, the outer peripheral shape of the pavement target portion S2 is obtained based on the measurement data (see FIG. 4) including the acquired distance information a and the azimuth information b. Then, calculation is performed on the internal area of the pavement target portion S2 surrounded by the locus.
The locus of the movement of the simple area calculation device 1 (the outer peripheral shape of the pavement target portion S2) is specified by obtaining the coordinates of the movement position from the measurement data as follows. FIG. 5 is a diagram conceptually showing a method of specifying coordinates.
[0017]
The reference point of the pavement target portion S2 that is the start position and the end position is the origin P0 (0, 0), and the traveling direction in which the simple area calculation device 1 moves with the reference direction being north is θ0. Therefore, the coordinates P1 (X1, Y1) after the simple area calculation device 1 has moved by L are
X1 = L · cos θ0, Y1 = L · sin θ0
It becomes.
Then, the coordinates P2 (X2, Y2) after the simple area calculation device 1 has further moved by the distance L are calculated using θ1 and (X1, Y1).
X2 = X1 + L · cos θ1, Y2 = Y1 + L · sin θ1
It becomes.
[0018]
Similarly, the coordinates Pn (Xn, Yn) after the simple area calculator 1 has moved by L · n are
Xn = Xn−1 + L · cos θn−1, Yn = Yn−1 + L · sin θn−1
It becomes.
In this way, the outer periphery of the pavement target portion S2 to which the simple area calculation device 1 has moved is specified by the coordinates (P0, P1, P2... Pn) sequentially calculated by the above calculation.
In addition, since the movement position of the simple area calculation device 1 has the origin at the start position and the end position, the coordinates of the two points obtained should originally match, but there is a deviation from the measurement error of the distance and the direction. There is. In such a case, correction such as matching the value of the coordinate Pn with the value of the coordinate P0 is performed.
[0019]
In this way, the outer shape of the pavement target portion S2 is specified from the coordinates (P0, P1, P2... Pn) on the locus of the movement of the simple area calculation device 1, and an arithmetic process for calculating the internal area is performed. The calculated area value is displayed on the liquid crystal display of the PDA 4, so that the measurer M can confirm it immediately.
[0020]
Therefore, according to the simple area calculation device 1 of the present embodiment, the measurer M can check the area only by moving the pavement target portion S2 along the outer periphery, and the operation is extremely simple and simple. became.
The simple area calculator 1 has the same usability as that of the conventional walking measure due to the attachment of the digital measure 2, the magnetic sensor 3, and the PDA 4, and hardly changes in weight or size.
[0021]
By the way, when the measurement is performed by the simple area calculation device 1, in order to create a drawing and manage various data for the pavement target portion S2 from the obtained coordinate data, an unillustrated office or the like is located away from the site. Data is transferred to the personal computer.
For data transfer to a personal computer, for example, a method of displaying measurement data and coordinate data as a two-dimensional bar code on the liquid crystal display of the PDA 4 and transmitting the bar code image using the camera function of the mobile phone can be adopted. . Alternatively, a method of using wired or short-range wireless communication, or a method of using a removable valve type storage device that stores measurement data and is detachable from the PDA 4 may be used.
[0022]
Therefore, in the past, the values recorded and recorded by the measurer were returned to the office and transcribed, or the CAD operator created a plan view of the pavement from the data. Data can be managed by a personal computer, and drawings can be easily created from coordinate data. Therefore, the overall work efficiency was able to be improved.
[0023]
Note that the present embodiment is merely an example, and does not limit the present invention in any way. Therefore, naturally, the present invention can be variously improved and modified without departing from the gist thereof.
In the above-described embodiment, the azimuth per unit distance is recorded with respect to the measurement data as shown in FIG. 4, but the distance and azimuth are changed only when the traveling direction changes so that a large amount of data can be stored. It may be recorded.
Further, for example, the measurement data may be calculated by calculating a traveling distance and a relative position in a traveling direction for each unit distance.
[0024]
【The invention's effect】
The present invention is directed to a distance detection unit that detects rotation of a wheel and outputs a distance pulse as distance information at regular intervals, an azimuth detection unit that detects magnetism and outputs a traveling direction as azimuth information, And arithmetic processing means for calculating the internal area based on the distance information and the azimuth information obtained by moving the wheels along the road, so that the result of the pavement area can be easily obtained. It has become possible to provide an area calculation device.
[Brief description of the drawings]
FIG. 1 is a principle diagram showing a simple area calculator.
FIG. 2 is an external view showing a simple area calculator.
FIG. 3 is a diagram showing a measurement state of a pavement target portion.
FIG. 4 is a table showing measurement data in a table.
FIG. 5 is a diagram conceptually showing a method of specifying coordinates.
FIG. 6 is a diagram showing measurement points in a conventional pavement target portion.
[Explanation of symbols]
1 Simple area calculator 2 Digital measure 3 Magnetic sensor 4 PDA

Claims (4)

Distance detecting means for detecting rotation of the wheel and outputting a distance pulse as distance information at regular intervals,
Azimuth detecting means for detecting magnetism and outputting the traveling direction as azimuth information,
A simple processing unit for calculating an internal area based on the distance information and the azimuth information obtained by moving the wheel along the outer periphery of the predetermined area. The simple area calculator according to claim 1,
The simple area calculation device, wherein the arithmetic processing means calculates an area by obtaining coordinates of a trajectory of the movement of the wheel from the distance information and the azimuth information. Distance detecting means for detecting rotation of the wheel and outputting a distance pulse as distance information at regular intervals, azimuth detecting means for detecting magnetism and outputting the traveling direction as azimuth information, and a wheel along the outer periphery of a predetermined area. Using a simple area calculation device having an arithmetic processing means for calculating the internal area based on the distance information and the azimuth information obtained by moving, and transmitting the data obtained by the simple area calculation device by wireless communication A simple area calculation system, wherein the data is transferred through a means and the data is managed by a remote data processing device. The simple area calculation system according to claim 3,
The arithmetic processing means displays the distance information and the azimuth information on a liquid crystal display as a two-dimensional barcode image, and transfers the two-dimensional barcode image to a data processing device using a camera function of a mobile phone as the wireless communication means. A simple area calculation system, characterized in that:

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