JPS58132608A - Area measuring device - Google Patents

Abstract

PURPOSE:To make it possible to measure the actual area of the desired region, by projecting the film on which reduced scale graduation of an image is recorded on a screen, detecting the coordinates of each desired point and the length of the reduced scale graduation by detecting devices, and computing the area by a computer. CONSTITUTION:The desired image in the film, on which the images of a map and a drawing and their reduced scale graduation are recorded, is projected on the screen 3. The coordinates of each desired point and the length of the reduced scale graduation on the image on the screen 3 are detected by the detecting devices 17-24. The detecting devices measure an index moving along the surface of the screen and the moving distances of the index in the direction X and the direction Y. The area is computed by the computer 36 based on the coordinates and the length of the reduced scale graduation detected by the detecting devices.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an area measuring device KIIl for determining the actual area tm of a desired area in a field marked with a map, drawing, etc.
do.

Microfilm is used in a wide variety of fields because it allows a large amount of information to be recorded at high density in a small space. When manuscripts such as maps, survey drawings, and design drawings are recorded on this microfilm, it is not possible to measure the actual area of the area containing the recorded information. To measure the actual area of such information, it is necessary to use a manuscript such as a map or drawing, so even if the manuscript is recorded on microfilm, it is necessary to preserve it. However, it is not possible to reduce the storage space, and it is difficult to reduce the storage space required.
The drawback was that it took time and effort to set up an iI meeting.

This Qli eliminates the above drawbacks and has a design of 13i! ! Page 1,
The present invention provides an area measuring device that can measure the area of a desired area using a film recorded with adhesive amount drawings, etc.

The present invention will be explained below with reference to the drawings. Figure 1 shows the entirety of a nine-microfiche reader to which the present invention is applied.
1i2iN is a diagram showing the internal configuration of the reader.
In FIGS. 1 and 2, there is an Iri fish, an upper case of the reader, 2 a lower case of the reader, and 3 disposed on the front side of the upper case 1 to expose a nine diffusion screen. Inside the upper case 1, three reflective mirrors 4, 5, and 6 are provided facing each other as shown in the second part.
A 11R lens assembly H is arranged.

As shown in FIG. 12, the imaging lens assembly H has a lens assembly Ho lens barrel 7 and a crimp tube 8 that freely holds the lens barrel 7. The crimp tube 8 is an elastic tube fixed to one 52 m of the upper case 2. The lower case 2 of the reader is supported by a leaf spring 9, and as shown in FIG. Diffusion lenses 15 are provided respectively.

Further, an opening 2I is provided in the upper support surface 2b of the lower case 2, and this opening 2. A diffuser lens 15 is placed at a position facing the . 16 is a round microfiche carrier that moves the microfiche f in a direction perpendicular to the optical path, and is movable in the X and Y directions.
Microfic. The desired piece above can be projected onto the screen 3. In Fig. 1, 17 is a friend A Y rail 18 is provided on the holder, and an X slider 19 can be moved along the X rail 17 in the X direction.

20 has a Y@driver that can move in the Y direction along the Y rail 18.The Y slider 20 has an Imei I! Made of iI, it has a cross mark in the center, F on the side, and nine circular plates 21 and...
The knob 22 is fixed. 23 is an X movement amount detector that detects the amount of movement of the Y rail 18 in the X direction, and has an X encoder, for example.
This is an X movement amount detector that detects the Q movement amount in the OY direction, and includes, for example, a Y encoder. 17
~24 constitutes a coordinate reading device, and this +1! Details of the scattering device are shown in Figure 3. In Figure 3, 27 is X rail 1
This is a wire hung between pulleys 25 and 26 provided at both ends of the X slider 19, and both ends thereof are fixed to the X slider 19, respectively. The X encoder 23 is directly connected to the central axis of the pulley 25 at one end of the pulley 25. Nine pulleys 28 and 29 are connected to the upper and lower ends of the 30riY rail 18.
A wire is hung over the gate, and both ends are Y.
The Y encoder 24 is directly connected to the center axis of a boob 928 at the top of the slider 20.

In the X encoder 23, the X'MI mover 19 has a constant length in the X direction! A pulse signal is generated each time the Y slider 20 moves, and the Y encoder 24 generates a pulse signal each time the Y slider 20 moves a certain length t in the Y direction.
When the slider 20 moves the same length, the encoders 23 and 24 generate the same number of pulse signals.Pulse signals Uj output from each encoder 23 and 24
As shown at 1410, the combination is passed through the electrical cord 35,
- Sent on evening 36th/37th is a combination.

- This is a printer that outputs the calculation results of 36 on printed paper.

38 is the combination of the position of O1 & quasi point (hereinafter referred to as the origin) on the screen 3, - the origin instruction is input to 9 in 36, and 39 is the index (crosshair)! This is the ninth coordinate input capotain, in which the coordinate values in the X direction and Y direction of the point on the screen where the intersection of is located are input into the combination 36.

＠Figure 5 shows the microfiche l piece Yuken on the screen 3, and for example, the amount of land scooped is recorded on this piece.・41 is the image 4 of the microfiche 2cy.
Indicates the scale scale recorded within 0, and this scale scale 41F
If the length L between the i scales a and b is reduced and recorded to the length between a and b which corresponds to the length of the fence on actual land, then the actual length of the scales a and b on the microfix This corresponds to the above length Filfi.

Figure 7M6 shows a block diagram of the area measuring device, and s oa
An X counter that adds or subtracts pulse signals output from the x encoder 23; 51 a Y needle counter that counts pulse signals output from the FiY encoder 24; 53 is a Y-rail movement direction detector that switches to an addition state, and 53 a Y-slider movement direction detector that switches to an X counter 51t-addition or subtraction state depending on the movement direction of the Y slider 20. 55
#'i The arithmetic unit of the converter 36 is 0, that is, Y
When the rail 18 moves in the +X direction < m5 (rightward in Figure V), the X counter 5° is in an increment state, and when the rail 18 moves in the -X direction (leftward in Figure 5), the Xlt counter 50 changes. It becomes a subtractive layer. Also, the Y slider 2o is moved in the +Y direction (5th J!
! When moving downward in Figure 3), the X counter 51#i becomes an additive vagina, and -Y direction 1! Positive direction in Figure 5) Ks
When the X counter 51 moves, the subtractive l! become. Also X, Y
Counts a5o and 51 are r when the origin instruction button 38 is pressed.
OJ is reset, and when the coordinate input capo button 39 is pressed, the counted values of each counter 5o and 51 are sent to the calculation section 55.The calculation s55 is executed on the screen based on the counted value sent from each counter 50 and 51. Projected 911II1111I!
Calculate the actual area of the desired coverage area.

Next, the operation of the above-mentioned area measuring device will be explained with reference to the flowchart in Figure jI7.@First, fish, a? Yaria 1
6 to project the desired amorous direction 40 recorded on the microfissure f onto the screen 3.Next, operate the knob 22 to move the Y slider 20 to the X-Y rails 17 and 18.
, and align the intersection of the fingers @F with the desired position on the screen, that is, the position that should be the origin of the projection image. In Figure 5, Kutoe is the OI on the screen: &
To set the origin as the origin, set the finger 411[F at the intersection point tC. After that, press the origin instruction switch 38i to select x-r.
When the H counters 50 and 51 are reset, the origin is set when the coordinate reading device reads the position 4g at an arbitrary position on the image projected on the screen. Projection ** small, small +1. ..., da
Describe the case of measuring the area of the area surrounded by -1, d. After setting the origin, move the Y slider 20 in the X-Y direction and set the intersection point of the index F at a of the Set to point. In this case, the XIi'i counter 50 counts the mourning pulse signal generated from the X encoder 23 while moving the Y slider circle in the X direction from the origin C to the point a, and the
The pulse signal generated from the Y encoder 24 is counted while the child 20 is moved from the origin 0 to point a in the Y direction. The corresponding count value is shown, and the X counter 51 shows the needle value corresponding to the length in the Y direction from the origin 0 to aA. If you set IM collar F to 1 point, it's 1! Coordinate capotan 3
When you press 8, X counter 500 counts 111 (A) #
l*31 part 55 K/l Ra 0 Lu, then Y slider 20
Move in the X direction, ! Set the intersection point of WIIIF to 6 points, then press the coordinate person capotan 39, and the X counter 500 stitch value at this time (B)
s K send n4゜? )I(X#55/l1A-B=k
is calculated, and the calculated value k is stored as the positive value of the scale scale in the all memory of the combination controller 36. Next, the Y slider 2o is moved again to the intersection 'kdI of the index F. Set it and press the m-marked capotan 39.
X counter 50/510 needle value XI, Y+ is calculation 1g1
@These needle values Xj and Yj sent to 55 are the lengths in the X and Y directions from the origin to point di on the screen,
In other words, it represents the coordinate fJi of point dj (see Figure 8) 0
The values Xi, Yi are stored in the second memory in the combinator and the operation [55ri Jin's stranding Xi,
Each Yi is multiplied by the Tomooke positive value k stored in the first memory, and the multiplied values Xi' and Yi' are stored in the second and @3 memories in the combeater. Next, move to the Y slider 20', set the index F to dl+, and send it to the seat (
Stepm) 0 This dI+s point coordinate value Xl+1,
Yt+1 is sent to the calculation unit 55, and the calculation 1155 multiplies the coordinate values XI+t, Yl+1 and the correction value, and stores the multiplied values Xl+L, Yt+t in the fourth memory in the combination (step B). . Subsequent calculation section 5
5 is step C) of calling up the contents of the third and fourth memories, and based on the contents of each memory, t S, -T (-Yl+l +Yt) (XI+1-
XI) Calculate and combine the calculated value S, - the fifth in the evening
Storing in the memory (step D) o When the calculation of the calculated value S1 is completed, the friend value Xl+1 is stored in the fourth memory.
.

Yl + r is transferred to the third memory, these values are stored in the 8g3 memory, and the contents of the fourth memory are erased (Step E).

Next, in the same manner as described above, move the Y slider 20 and set it at the index FtdIys point, press the coordinate person capotan 39, input the locus II Kojikoma◆s, Yt+z of dI÷8 points, and calculate the calculated value. S! is the calculated value 8 stored in the fifth memory.
1, and change the contents of the fK3 memory to the contents of the 4th memory XI+z, Yt+x.In the same way, repeat steps ~E until the final point dn.
Regarding the final point dn, after completing step E, press the origin instruction button 38t to move to step F. In step F, the contents of the second memory are X:, Yt, and the contents of the third memory are X, ', Y, ', and in step G, S' = (Yt + Y2) ()Q -X-)
is calculated by the calculation unit 55, and the calculated value S' is added to the contents of the fifth memory. Based on the above, the fifth memory stores the value S calculated based on the following formula %)) This IIkS is the actual value of the nine areas surrounded by the dt-da points. In this embodiment, the length of the scales a and b is actually Fi1.
1111, the actual area of the area enclosed up to the dlxda point is 5IIL''.

In the above embodiment, information for determining the content of each point indicated by the coordinate entry capo 39 (points a and b indicating the scale scale, points dt-da indicating the area measurement area) can be obtained by operating the button 39. ◎Therefore, when you press the button 39, the coordinate values input manually indicate which point the coordinate values indicate. You can know or do something by doing this. That is, the first operation of the button 39 indicates the coordinates of point a on the scale, the second operation indicates the coordinates of point b on the scale, and the third operation indicates the coordinates of point A on the scale. ing.

As described above, according to the present invention, it is possible to easily determine the actual area of a corresponding region in a film based on the information reduced to the film. The speed may be increased by using roll film, aperture card, strip film, etc.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the micro 74F series 1 reader to which the present invention #4 is applied, Fig. 2 is a sectional view of the beam reader 2, Fig. 3 is a diagram showing details of the seat m reading device, and Fig. 4 is a sectional view of the beam reader 2. Diagonal A diagram showing a round m shape with a printer connected to the reader, 5th
The figure shows the state in which the image of the microfish is projected onto the screen, and Figure 6 is a block diagram of the area measuring device.
Figure 7 on the side is a diagram showing the flow for area measurement, and Figure @8 is a diagram showing the coordinates of the image.

Claims (3)

[Claims] (1) An image such as a map or drawing and the scale scale of this image are recorded. Project the desired image on a screen onto a screen, and record the coordinates of each desired point of the image on the screen and the length of the scale scale. The area #1 is determined by detecting the area by a detection device and calculating the actual area of a large area by each point based on each coordinate and the length of the scale scale. (2) The detection device has an indicator that moves along the screen #i, and a means for measuring the moving distance f of the indicator in the X direction and the Y direction.
Area measuring device according to item 11. (3) The area measuring device according to Claims 1 to 2, characterized in that the area is calculated by a combinator based on the six coordinates detected by the detection device and the long field of the scale scale.