JP2019104165A - Display method of ready mixed concrete amount and display program of ready mixed concrete amount - Google Patents

Abstract

To grasp ready mixed concrete amount in a mixer drum at low cost.SOLUTION: A display method of ready mixed concrete amount displaying ready mixed concrete amount in a mixer drum 20 by use of a portable terminal 30 that includes a camera 31 capable of imaging inside of the mixer drum 20 rotatably installed on an agitating truck 10, and a display 32 capable of displaying picked up images 40 imaged by the camera 31 for inside of the mixer drum 20 comprises: an image composition step of generating a composite image 41 by overlapping the picked up image 40 imaged by the camera 31 for inside of the mixer 20 and loading scale 43 according to slump value of the ready mixed concrete in the mixer drum 20; and a display step of displaying the composite image 41 on the display 32.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a fresh concrete amount display method and a fresh concrete amount display program for displaying the amount of fresh concrete in a mixer drum of a mixer vehicle.

  Patent Document 1 discloses a fresh concrete amount display device for displaying the amount of fresh concrete in a mixer drum, in a mixer vehicle including a mixer drum capable of loading so-called fresh concrete such as mortar and ready mixed concrete as contents. In this fresh concrete amount display device, the amount of fresh concrete estimated based on the area occupied by the fresh concrete and the area occupied by the blades in the captured image obtained by imaging the inside of the mixer drum is displayed.

JP, 2016-68530, A

  However, in order to display the amount of fresh concrete in the mixer drum by the fresh concrete amount display device described in Patent Document 1, it is necessary to assemble the imaging device, the control device, and the display device into the mixer car. For this reason, in order to grasp the amount of fresh concrete of a plurality of mixer cars, these devices must be assembled to all the mixer cars, and the cost required to grasp the amount of fresh concrete may become enormous.

  The present invention has been made in view of the above problems, and has as its object to make it possible to grasp the amount of fresh concrete in a mixer drum at low cost.

  A first invention is a portable terminal including an imaging unit capable of imaging the inside of a mixer drum rotatably mounted on a mixer vehicle, and a display unit capable of displaying a captured image in the mixer drum imaged by the imaging unit. The method of displaying the amount of fresh concrete in which the amount of fresh concrete in the mixer drum is displayed is obtained by superimposing the load scale according to the slump value of the fresh concrete in the mixer drum on the captured image in the mixer drum captured by the imaging unit. It is characterized by including an image combining step of generating a combined image, and a display step of displaying the combined image on a display unit.

  In the first aspect of the invention, a composite image is displayed on the display unit of the portable terminal, in which a loading amount scale corresponding to the slump value of fresh concrete in the mixer drum is superimposed on the captured image obtained by imaging the inside of the mixer drum of the mixer vehicle. . Therefore, it is possible to easily grasp the amount of fresh concrete in the mixer drum from the composite image displayed on the display unit of the portable terminal. As described above, it is possible to grasp the amount of fresh concrete in the mixer drum of the mixer vehicle by the portable terminal, and there is no need to assemble devices such as an imaging device, a control device, and a display device to the mixer vehicle. The amount can be grasped at low cost.

  In the second invention, the method of displaying the amount of fresh concrete further includes an imaging step of enabling imaging of the inside of the mixer drum by the imaging unit, and in the imaging step, an imaging guide that guides the rotational position of the mixer drum to a predetermined position. It is characterized in that it is displayed on the display unit.

  In the second aspect of the invention, in a state in which imaging by the imaging unit is possible, an imaging guide for guiding the rotational position of the mixer drum to a predetermined position is displayed on the display unit. For this reason, it is possible to make the rotational position of the mixer drum the same every time by photographing the mixer drum in accordance with the imaging guide. As described above, by making the imaging conditions the same each time, it is possible to more accurately grasp the amount of fresh concrete.

  In a third aspect of the present invention, the portable terminal further includes an inclination detection unit that detects the inclination of the portable terminal with respect to a horizontal plane, and in the image combining step, the inclination of the portable terminal detected by the inclination detection unit when the captured image is captured. The correction image is generated by correcting the captured image to the horizontal state based on the above, and a load scale is superimposed on the correction image.

  In the third aspect of the invention, the loading amount scale is superimposed on the corrected image obtained by correcting the captured image to the horizontal state based on the tilt of the portable terminal. For this reason, even if imaging is performed with the portable terminal inclined, the composite image is generated by superimposing the loading scale on the corrected image corrected to the horizontal state, so that the raw concrete in the mixer drum is generated from the composite image. You can easily grasp the amount.

  In the fourth invention, the loading scale indicates the height of the liquid surface of the fresh concrete in the mixer drum, which changes in accordance with the amount of fresh concrete in the mixer drum, and the slope of the loading scale corresponds to the slump value. It is characterized by changing.

  In the fourth invention, the inclination of the load scale for grasping the amount of fresh concrete in the mixer drum changes in accordance with the slump value. That is, the loading scale to be combined with the captured image is appropriately changed according to the slump value of the fresh concrete in the mixer drum. For this reason, even when the slump value of fresh concrete is changed, the amount of fresh concrete in the mixer drum can be easily grasped from the composite image.

  In a fifth aspect of the present invention, the portable terminal further includes an input unit capable of inputting the slump value of fresh concrete in the mixer drum, and in the image combining step, the loading amount scale corresponding to the slump value input through the input unit It is characterized in that it is superimposed on a captured image.

  In the fifth invention, the composite image is generated by superimposing a load scale in accordance with the slump value input via the input unit with the captured image. For this reason, even when the slump value of the fresh concrete changes, the amount of fresh concrete in the mixer drum can be easily grasped from the composite image.

  A sixth aspect of the present invention is a portable terminal comprising an imaging unit capable of imaging the inside of the mixer drum rotatably mounted on the mixer vehicle, and a display unit capable of displaying a captured image in the mixer drum imaged by the imaging unit. A fresh concrete amount display program for controlling and displaying the amount of fresh concrete in the mixer drum is provided to the portable terminal in an imaging step for enabling imaging of the inside of the mixer drum by the imaging unit, and for a captured image in the mixer drum imaged by the imaging unit The method is characterized in that an image combining step of overlapping the load scale according to the slump value of the fresh concrete in the mixer drum to generate a combined image and a display step of displaying the combined image on the display unit are executed.

  In the sixth aspect of the invention, a composite image is displayed on the display unit of the portable terminal, in which the loading amount scale corresponding to the slump value of fresh concrete in the mixer drum is superimposed on the captured image obtained by imaging the inside of the mixer drum of the mixer vehicle. . Therefore, it is possible to easily grasp the amount of fresh concrete in the mixer drum from the composite image displayed on the display unit of the portable terminal. As described above, it is possible to grasp the amount of fresh concrete in the mixer drum of the mixer vehicle by the portable terminal, and there is no need to assemble devices such as an imaging device, a control device, and a display device to the mixer vehicle. The amount can be grasped at low cost.

  According to the present invention, the amount of fresh concrete in the mixer drum can be grasped at low cost.

It is a side view of the mixer car by which the amount of fresh concrete in a mixer drum is displayed by the method of displaying the amount of fresh concrete according to the embodiment of the present invention. It is the enlarged view which expanded and showed the II section of FIG. It is the figure which looked at the inside of a mixer drum from the direction shown by arrow A in FIG. It is a block diagram of a portable terminal used for a fresh concrete amount display method concerning an embodiment of the present invention. It is a figure which shows the display part of a portable terminal when an imaging part is turned to the direction shown by arrow A in FIG. It is a figure which shows the display part of the portable terminal on which the image which shows the amount of fresh concrete in a mixer drum was displayed. It is a flowchart which shows the procedure which displays the amount of fresh concrete on a portable terminal by the method of displaying the amount of fresh concrete according to the embodiment of the present invention.

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

  First, with reference to FIGS. 1 to 3, mixer truck 10 in which the amount of fresh concrete in the mixer drum is displayed by the method of displaying fresh concrete amount according to the embodiment of the present invention (hereinafter referred to as “fresh concrete amount display method”). The overall configuration of the

  The mixer vehicle 10 is a vehicle for transporting so-called ready-mixed concrete (hereinafter, referred to as “green”) such as mortar and ready mixed concrete. The following description demonstrates the case where the mixer vehicle 10 carries a ready-made concrete as a load.

  As shown in FIG. 1, the mixer vehicle 10 includes a rack 11 extending in the front-rear direction of the vehicle, a mixer drum 20 rotatably mounted on the rack 11, a drum drive device 12 for rotationally driving the mixer drum 20, and The hopper 13 guides the ready-mixed concrete to be introduced into the mixer drum 20, and the chute 14 guides the ready-mixed concrete discharged from the mixer drum 20 to a predetermined position.

  The mixer drum 20 is a cylindrical container that rotates around the rotation axis C1, and an opening 20a is provided at the rear end of the vehicle rear side for charging and discharging the concrete, and is provided at the front end of the vehicle front side. A drive shaft 21 is provided extending outward along the rotation axis C1. The mixer drum 20 is supported by the gantry 11 in a state where the rear end side where the opening 20a is provided is lifted above the front end side.

  The drive shaft 21 of the mixer drum 20 is connected to a hydraulic motor (not shown) provided in the drum drive 12 via a gear box (not shown). Therefore, the mixer drum 20 is rotationally driven in the forward rotation direction or the reverse rotation direction by the hydraulic motor. The drive shaft 21 of the mixer drum 20 may be connected to a traveling engine (not shown) of the mixer vehicle 10 via a gear box. In this case, the mixer drum 20 is rotationally driven by the traveling engine. Moreover, as a drive source of the mixer drum 20, an electric motor may be used instead of a hydraulic motor or an engine.

  As shown in FIG. 2, a conical cover member 25 is provided on the bottom of the mixer drum 20 which is the inside of the front end of the mixer drum 20 so as to cover the end of the drive shaft 21. The cover member 25 is fixed to the inner wall surface of the mixer drum 20 so that the top 25a thereof protrudes toward the inside of the mixer drum 20 and the central axis C2 thereof is coaxial with the rotation axis C1 of the mixer drum 20. The central axis C2 of the cover member 25 and the rotation axis C1 of the mixer drum 20 do not have to be exactly the same, and they may be slightly offset from each other. Further, the inclination of the conical surface 25b of the cover member 25 does not have to be constant toward the top 25a, and may be gradually gentle toward the top 25a. That is, the top 25a of the cover member 25 does not have to be sharp and may have a rounded shape.

  Further, in the mixer drum 20, a pair of blades 22 and 23 are disposed spirally along the inner wall surface of the mixer drum 20. Each of the blades 22 and 23 is divided into a front blade 22a and 23a disposed on the front side of the vehicle and a rear blade 22b and 23b disposed on the rear side of the vehicle at a substantially intermediate portion of the mixer drum 20. Ru. The rear blades 22b and 23b are joined to the inner wall surface of the mixer drum 20 at the opening 20a and to a cylindrical seal pipe 24 disposed on the rotation axis C1 of the mixer drum 20.

  The seal pipe 24 is provided to smoothly guide the ready-mixed concrete introduced into the hopper 13 into the interior of the mixer drum 20. The shape of the seal pipe 24 will be described with reference to FIG. FIG. 3 is a view of the inside of the mixer drum 20 through the inside of the seal pipe 24 from the direction indicated by the arrow A in FIG. The cover member 25 is illustrated at the center in FIG. 3, and the end portions 22 c and 23 c of the front blades 22 a and 23 a are disposed around the cover member 25. Further, as described above, each of the blades 22 and 23 is divided into the front blades 22a and 23a and the rear blades 22b and 23b at substantially the middle portion of the mixer drum 20.

  The seal pipe 24 has a cylindrical portion 24 a capable of sliding contact with the hopper 13 and a pair of extending portions 24 b extending from the cylindrical portion 24 a toward the inside of the mixer drum 20. The extension portions 24b are each formed in a substantially triangular shape, and include an oblique side 24c formed along the rear blades 22b and 23b, and a connection side 24d formed from the oblique side 24c toward the cylindrical portion 24a. Have. The seal pipe 24 is fixed to the mixer drum 20 by welding the oblique side 24c of the extension 24b to the inside of the rear blades 22b and 23b.

  The hopper 13 is disposed above the opening 20 a of the mixer drum 20 in order to introduce the raw concrete introduced from above the mixer wheel 10 into the mixer drum 20 through the seal pipe 24. A hopper cover 15 covering the opening of the hopper 13 is rotatably provided on the upper portion of the hopper 13 via a hinge 15 a. On the other hand, below the opening 20a of the mixer drum 20, a chute 14 for guiding the ready-mixed concrete discharged from the mixer drum 20 to a predetermined position is disposed.

  In mixer car 10 of the above configuration, when mixer drum 20 is rotationally driven in the positive rotation direction, which is left rotation when viewed from the rear of the vehicle, blades 22 and 23 stir the raw concrete in mixer drum 20 to the front of mixer drum 20 And move. As described above, by rotating the mixer drum 20 and stirring the ready-mixed concrete, it is possible to suppress the ready-mixed can being separated or solidified.

  On the other hand, when the mixer drum 20 is rotationally driven in the reverse rotation direction, the blades 22 and 23 move the raw concrete to the rear of the mixer drum 20 while stirring. By thus rotating the mixer drum 20 in the reverse direction, raw concrete can be discharged from the opening 20 a of the mixer drum 20. The fresh concrete discharged from the opening 20 a of the mixer drum 20 is guided to a predetermined position via the chute 14.

  Next, referring to FIGS. 4 to 6, the mobile terminal 30 used to display the amount of fresh concrete in the mixer drum 20 will be described. FIG. 4 is a block diagram of the portable terminal 30, FIG. 5 is a view showing a state of the portable terminal 30 when the inside of the mixer drum 20 is photographed from the direction shown by the arrow A in FIG. It is a figure which shows the state of the portable terminal 30 on which the below-mentioned composite image 41 was displayed.

  The portable terminal 30 is a portable small terminal such as a smartphone or a tablet, and can generate the composite image 41 from the camera 31 as an imaging unit capable of imaging the inside of the mixer drum 20 and the imaging image 40 imaged by the camera 31 The controller 50, the display unit 32 for displaying the composite image 41 generated by the controller 50, the input unit 33 capable of inputting numerical values related to live computers in the mixer drum 20, and the inclination of the portable terminal 30 main body And a tilt detection unit 34. In addition, the portable terminal 30 is not limited to a smart phone etc., As long as it is a portable terminal device provided with the said structure, what kind of form may be sufficient as it. Further, the portable terminal 30 is provided with a strap (not shown) for preventing the portable terminal 30 from falling into the mixer drum 20 when the inside of the mixer drum 20 is photographed.

  The camera 31 is provided on the back surface of the mobile terminal 30, which is the surface opposite to the surface on which the display unit 32 is provided. Therefore, by orienting the camera 31 in the direction indicated by the arrow A in FIG. 1, it is possible to capture the inside of the mixer drum 20 while confirming the image shown on the display unit 32. The captured image 40 captured by the camera 31 may be a still image, or one frame extracted from a moving image may be a still image.

  The display unit 32 functions as a finder for confirming the composition of the captured image 40 captured by the camera 31 as shown in FIG. 5, and displays the composite image 41 generated by the controller 50 as shown in FIG. Function as a monitor. In addition, the display unit 32 is provided with a touch panel over the entire surface, and the display unit 32 also functions as an input unit 33 capable of inputting numerical values and characters.

  The inclination detection unit 34 is an acceleration sensor, a gyro sensor, or the like provided in the main body of the mobile terminal 30, and detects an inclination of the main body of the mobile terminal 30 with respect to a horizontal plane. Specifically, as shown in FIG. 5, when the portable terminal 30 is inclined with respect to the vertical direction, a value corresponding to the inclination degree of the portable terminal 30 with respect to the horizontal state is output from the inclination detection unit 34 as needed. Ru.

  The controller 50 is configured by a microcomputer provided with a CPU (central processing unit), a ROM (read only memory), a RAM (random access memory), and an I / O interface (input / output interface). The RAM stores data in the processing of the CPU, the ROM stores in advance a control program of the CPU, etc., and the I / O interface is used to input and output information with the connected device. The controller 50 may be configured by a plurality of microcomputers.

  As shown in FIG. 4, the controller 50 takes in the captured image 40 captured by the camera 31 and performs image processing to generate a composite image 41, and the composite image 41 is generated by the image processing unit 51. The storage unit 52 stores the combined image 41 generated by the load scale 43 and the image processing unit 51 used for the image processing unit 51, the estimation unit 53 that estimates the amount of raw materials in the mixer drum 20 from the composite image 41, and the inclination detection unit 34 To determine the inclination degree of the portable terminal 30 with respect to the horizontal state based on the detection value detected by the above-mentioned, and a guide for displaying the imaging guides 44 and 45 on the display unit 32 when photographing the inside of the mixer drum 20 And a display unit 55. Note that the image processing unit 51, the storage unit 52, the estimation unit 53, the inclination determination unit 54, and the guide display unit 55 represent each function of the controller 50 as a virtual unit, and physically exist. Does not mean. These functions are described below.

  In the image processing unit 51, the position of the center point 42 (see FIG. 6) as the rotation center corresponding to the position of the rotation axis C1 of the mixer drum 20 is estimated from the captured image 40 captured and stored with reference to the center point 42. The load amount scale 43 stored in advance in the unit 52 is synthesized. The position of the center point 42 is image processing based on the positions of members constituting the mixer drum 20 such as the arrangement of the circular outer edge of the cover member 25 and the blades 22 and 23 in the captured image 40 and the position of the oblique side 24c of the seal pipe 24. Estimated by

  In addition, when the image processing unit 51 determines that the mobile terminal 30 can be tilted with respect to the horizontal surface in the tilt determination unit 54, the tilt determination unit may be performed before the loading amount scale 43 is combined with the captured image 40. In accordance with the inclination degree of the portable terminal 30 determined in 54, a not-shown corrected image in which the captured image 40 is corrected to the horizontal state is generated. Specifically, a corrected image corrected to the horizontal state is generated by inclining the captured image 40 by the inclination amount determined by the inclination determination unit 54 around the center point 42, and the generated correction image is loaded The quantity scale 43 is synthesized.

  The storage unit 52 stores a load amount scale 43 to be combined with the captured image 40 by the image processing unit 51. The loading amount scale 43 indicates the level of the liquid level of the ready-mixed concrete in the mixer drum 20 that changes in accordance with the ready-mixed amount in the mixer drum 20, and is created based on the position of the rotation axis C1 of the mixer drum 20. For this reason, as described above, by combining the loading scale with the center point 42 of the captured image 40, it is possible to generate an image as if the loading scale 43 was projected within the mixer drum 20. .

Further, the load amount scale 43 is inclined in the direction in which the mixer drum 20 rotates with respect to the horizontal, and the size of this inclination changes according to the slump value, and increases as the slump value decreases, and increases as the slump value increases. It becomes smaller. In the storage unit 52, a load amount scale 43 corresponding to a plurality of slump values including slump values of fresh concrete distributed in the market is mapped and stored. The interval of the loading scale 43 is not limited to 0.5 m ³ as shown in FIG. 6 and can be set at an arbitrary interval.

  The estimation unit 53 estimates the amount of fresh concrete in the mixer drum 20 based on the loading scale 43 displayed on the composite image 41 and the position of the liquid surface of the fresh concrete displayed on the composite image 41. Specifically, for example, between the arbitrary point on the boundary line between the liquid level of the green concrete and the cover member 25 displayed in the composite image 41 on the composite image 41 and the two graduations adjacent to this point. The distance of each is calculated, and one of the two divisions located near an arbitrary point on the boundary is displayed as a raw computer estimate. If the boundary between the liquid level of the raw concrete and the cover member 25 is located in the middle of the two scales, the estimated amount of the raw concrete may be calculated by interpolation. The fresh concrete amount can be easily estimated by looking at the composite image 41 displayed on the display unit 32 by the worker. Therefore, when it is difficult to recognize the boundary between the liquid level of the fresh concrete and the cover member 25, The estimation of the amount of fresh concrete by the estimation unit 53 may not be performed.

  In the tilt determination unit 54, based on the detection value detected by the tilt detection unit 34, the tilt degree of the mobile terminal 30 with respect to the horizontal state is determined. It is preferable that the photographing by the portable terminal 30 is performed with the portable terminal 30 in a horizontal state, but when photographing the inside of the seal pipe 24 from above the hopper 13 to maintain the portable terminal 30 in a horizontal state It is difficult, as shown in FIG. 5, there is a possibility that the main body of the portable terminal 30 tilts in the vertical direction. The degree of inclination of the portable terminal 30 determined by the inclination determination unit 54 is sent to the image processing unit 51 and the guide display unit 55 in order to compensate for such inclination of the portable terminal 30.

  The guide display unit 55 causes the display unit 32 to display the first imaging guide 44 and the second imaging guide 45 as shown in FIG. 5 when the operator photographs the inside of the mixer drum 20 with the portable terminal 30. The first imaging guide 44 urges imaging so that the position of the cover member 25 predicted to be the center point 42 of the captured image 40 is at the center of the captured image 40. The second imaging guide 45 urges imaging when the position of the blades 22 and 23 rotating with the mixer drum 20 comes to a predetermined position.

  Here, the liquid level position of the ready-mixed concrete in the mixer drum 20 during rotation changes somewhat due to the change of the position of the blades 22 and 23 which stirs the ready-mixed concrete. For this reason, in order to grasp the amount of raw materials in the mixer drum 20 more accurately based on the captured image 40, it is necessary to capture the captured image 40 each time the positions of the blades 22 and 23 are at the same position. For this reason, the guide display unit 55 displays on the display unit 32 a second imaging guide 45 that urges the rotational position of the mixer drum 20 to be the same every time imaging is performed.

  The second imaging guide 45 shown in FIG. 5 urges imaging when the connection side 24 d of the seal pipe 24 which the operator can easily visually recognize reaches the position indicated by the second imaging guide 45. That is, the second imaging guide 45 does not guide the positions of the blades 22 and 23 to a predetermined position, but guides the position of the connection side 24 d of the seal pipe 24 to a predetermined position. As described above, the members constituting the mixer drum 20 other than the blades 22 and 23 are guided to a predetermined position of a member (for example, the connection side 24 d of the seal pipe 24 in the present embodiment) which is easy for the operator to visually recognize. By doing so, it becomes easy to make the positions of the blades 22 and 23 at the time of imaging the same position every time.

  The second imaging guide 45 is not limited to guiding the position of the connection side 24d of the seal pipe 24 to a predetermined position. For example, the positions of the end portions 22c and 23c of the front blades 22a and 23a and the front blade It may be prompt to shoot when the position of the boundary between 22a and 23a and the rear blade 22b and 23b reaches a predetermined position. In this case, even in the mixer drum 20 in which the seal pipe 24 is not provided, it is possible to take pictures when the positions of the blades 22 and 23 come to the same position every time. Further, in the example shown in FIG. 5, the second imaging guide 45 is displayed at a horizontal position, but the position of the second imaging guide 45 is not limited to this, and even if it is a position along the vertical direction It may be a position having a predetermined angle with respect to the vertical direction.

  When the tilt determination unit 54 determines the tilt of the portable terminal 30, the guide display unit 55 determines the second imaging guide 45 by the tilt determination unit 54 with the first imaging guide 44 as the center. It is displaced by the amount of inclination. As a result, even when the worker tilts the mobile terminal 30 and shoots as shown in FIG. 5, it is possible to prompt the shooting when the position of the connection side 24d reaches a predetermined position.

  Next, with reference to the flowchart of FIG. 7, a method of displaying the amount of fresh concrete in the mixer drum 20 using the portable terminal 30 will be described.

  In the state in which the raw material amount display method is not executed, the display unit 32 of the portable terminal 30 has an icon (not shown) for activating a raw material amount display program that causes the portable terminal 30 to display the raw material amount in the mixer drum 20. Is displayed. By touching this icon, a live control amount display program is activated and display of the live control amount by the portable terminal 30 is started. That is, the raw material amount display method is installed in advance in the portable terminal 30 as application software. In the case where the portable terminal 30 is a dedicated device that only displays the amount of raw concrete, the display of the amount of raw concrete is started by turning on the power of the portable terminal 30.

  When the raw control amount display program is activated, first, at step S11, an input of a slump value of the control block in the mixer drum 20 is obtained. In step S11, a slump value measured in advance by a known method using a slump cone is input by the operator to the display unit 32 of the portable terminal 30. The slump value is not limited to the slump value obtained by the method using the slump cone, and may be obtained by another method.

  When the slump value is input, the process proceeds to step S12 as an imaging step, and the first imaging guide 44 and the second imaging guide 45 are displayed on the display unit 32 of the portable terminal 30 by the guide display unit 55. In the state 30, the camera 31 can capture an image of the inside of the mixer drum 20. In this state, the operator sees the display portion 32, the cover member 25 is reflected inside the first imaging guide 44, and the position of the connection side 24d of the seal pipe 24 of the mixer drum 20 which rotates at a constant rotational speed Takes a picture at the timing when it reaches the position indicated by the second imaging guide 45. The rotational speed of the mixer drum 20 at the time of shooting is set to the same speed each time, and for example, it is preferable to set a low stirring state of about 0.8 rpm. When it is difficult to shoot at the timing when the connection side 24d reaches the position indicated by the second imaging guide 45, the rotation of the mixer drum 20 may be temporarily stopped and shooting may be performed.

  When the operator tilts the portable terminal 30 with respect to the horizontal plane when shooting, the second imaging guide 45 is rotationally displaced about the first imaging guide 44 according to the inclination of the portable terminal 30. For this reason, even when the portable terminal 30 is in a tilted state, the operator can shoot at the timing when the position of the blades 22 and 23 comes to a predetermined position.

  In the subsequent step S13, the captured image 40 captured by the portable terminal 30 is taken into the image processing unit 51. When capturing the captured image 40, the image processing unit 51 captures the degree of tilt determined by the tilt determination unit 54 in association with the captured image 40.

  In step S14, the captured image 40 captured by the image processing unit 51 in step S13 is corrected to the horizontal state by the above-described method by the image processing unit 51 based on the associated inclination degree, and converted into a corrected image. Ru. When the portable terminal 30 is not inclined, that is, when the inclination of the main body of the portable terminal 30 is not detected by the inclination detection unit 34, the captured image 40 is a corrected image as it is.

  In step S15, the load amount scale 43 is combined with the corrected image by the above-described method by the image processing unit 51, and the combined image 41 is generated. A scale corresponding to the slump value input in step S11 is extracted from the storage unit 52 as the combined payload scale 43. A series of steps in which the captured image 40 is taken in by the image processing unit 51 and the composite image 41 is generated as described above corresponds to an image combining step.

  In the subsequent step S16, the estimation unit 53 estimates the amount of fresh concrete based on the composite image 41 generated by the image processing unit 51 by the method described above.

  The composite image 41 generated in step S15 and the raw material amount estimated in step S16 are displayed on the display unit 32 in step S17 as a display step.

  After these steps, the display unit 32 of the portable terminal 30 displays, as shown in FIG. 6, the composite image 41 on which the load amount scale 43 has been composited and the estimated raw material amount. The worker can easily grasp the amount of fresh concrete in the mixer drum 20 of the mixer truck 10 only by looking at the composite image 41 displayed on the display unit 32 of the portable terminal 30 in this manner.

  As shown in FIG. 6, the display unit 32 may display a button for saving the result, a button for retaking, a button for changing the slump value, and the like, together with the composite image 41. For example, when the button for storing the result is operated, the composite image 41 and the estimated amount of raw materials are stored in the storage unit 52. In addition, when the button to retake the image is operated, the process returns to step S12, and it becomes possible to take an image again, and when the button for changing the slump value is operated, the process returns to step S11 and the slump value can be input again. State.

  According to the above embodiment, the following effects can be obtained.

  With the above-described live control amount display method and live control amount display program, since the live control amount in the mixer drum 20 of the mixer vehicle 10 can be grasped by the portable terminal 30, the image pickup device, control device, display device There is no need to assemble it on the mixer wheel 10. Therefore, the amount of fresh concrete in the mixer drum 20 can be grasped at low cost.

  Further, in the fresh concrete amount display method and the fresh concrete amount display program, a composite in which the loading amount scale 43 corresponding to the slump value of the fresh concrete in the mixer drum 20 is superimposed on the captured image 40 obtained by imaging the inside of the mixer drum 20 of the mixer vehicle 10 The image 41 is displayed on the display unit 32 of the portable terminal 30. Therefore, the amount of fresh concrete in the mixer drum 20 of the mixer truck 10 can be easily grasped simply by looking at the composite image 41 displayed on the display unit 32 of the portable terminal 30. As described above, since the amount of fresh concrete in the mixer drum 20 is grasped from the composite image 41 displayed on the display unit 32 of the portable terminal 30, even a less experienced worker can easily grasp the amount of raw corn By showing the composite image 41 to the on-site supervisor at the placement site or transmitting the composite image 41 to the live computer plant, it becomes possible to report the correct live computer residual amount. In addition, it is possible to suppress variation in the grasp of the amount of fresh concrete in the mixer drum 20 due to the difference in the experience of the workers.

  Hereinafter, the configuration, operation, and effects of the embodiment of the present invention will be collectively described.

  A portable terminal 30 comprising a camera 31 capable of imaging the inside of the mixer drum 20 rotatably mounted on the mixer vehicle 10, and a display unit 32 capable of displaying the captured image 40 in the mixer drum 20 imaged by the camera 31 The raw material amount display method of displaying the raw material amount in the mixer drum 20 using the load amount scale 43 corresponding to the slump value of the raw material in the mixer drum 20 with respect to the captured image 40 in the mixer drum 20 captured by the camera 31 It includes an image combining step of overlapping to generate a combined image 41, and a display step of displaying the combined image 41 on the display unit 32.

  In this configuration, since the amount of fresh concrete in the mixer drum 20 of the mixer vehicle 10 can be grasped by the portable terminal 30, it is not necessary to assemble an imaging device, a control device, and a display device into each mixer vehicle 10 as in the prior art. Therefore, the amount of fresh concrete in the mixer drum 20 can be grasped at low cost.

  Further, in this configuration, the composite image 41 in which the loading amount scale 43 according to the slump value of the main computer in the mixer drum 20 is superimposed on the captured image 40 obtained by imaging the inside of the mixer drum 20 of the mixer vehicle 10 is It is displayed on the display unit 32. Therefore, the amount of fresh concrete in the mixer drum 20 of the mixer truck 10 can be easily grasped simply by looking at the composite image 41 displayed on the display unit 32 of the portable terminal 30. As described above, since the amount of fresh concrete in the mixer drum 20 is grasped from the composite image 41 displayed on the display unit 32 of the portable terminal 30, even a less experienced worker can easily grasp the amount of raw corn By showing the composite image 41 to the on-site supervisor at the placement site or transmitting the composite image 41 to the live computer plant, it becomes possible to report the correct live computer residual amount. In addition, it is possible to suppress variation in the grasp of the amount of fresh concrete in the mixer drum 20 due to the difference in the experience of the workers.

  The raw material amount display method further includes an imaging step for enabling the camera 31 to image the inside of the mixer drum 20, and in the imaging step, the imaging guides 44 and 45 for guiding the rotational position of the mixer drum 20 to a predetermined position. It is displayed on the display unit 32.

  In this configuration, in the state where imaging by the camera 31 is possible, imaging guides 44 and 45 that guide the rotational position of the mixer drum 20 to be a predetermined position are displayed on the display unit 32. Therefore, by photographing the mixer drum 20 in accordance with the imaging guides 44 and 45, it is possible to make the rotational position of the mixer drum 20 the same every time. As described above, by making the imaging conditions the same each time, the influence that the liquid level position of the ready-mixed concrete changes according to the position of the blades 22 and 23 is eliminated, and as a result, the amount of ready-mixed can be grasped more accurately. be able to.

  The mobile terminal 30 further includes a tilt detection unit 34 that detects the tilt of the mobile terminal 30 with respect to the horizontal plane, and in the image combining step, the mobile terminal 30 detected by the tilt detection unit 34 when the captured image 40 is captured. The corrected image is generated by correcting the captured image 40 to the horizontal state based on the inclination of the image, and the loading amount scale 43 is superimposed on the corrected image.

  In this configuration, the loading amount scale 43 is superimposed on a corrected image obtained by correcting the captured image 40 in the horizontal state based on the inclination of the mobile terminal 30. Therefore, even if imaging is performed with the portable terminal 30 tilted, the composite image 41 is generated by superimposing the loading scale 43 on the corrected image corrected to the horizontal state, so the composite image 41 can be viewed. Thus, the amount of fresh concrete in the mixer drum 20 can be easily grasped.

  Further, the load amount scale 43 indicates the height of the liquid level of the ready mix in the mixer drum 20 which changes in accordance with the amount of ready mix in the mixer drum 20, and the tilt of the load amount scale 43 varies in accordance with the slump value. Do.

  In this configuration, the inclination of the load scale 43 for grasping the amount of fresh concrete in the mixer drum 20 changes in accordance with the slump value. That is, since the load amount scale 43 combined with the captured image 40 is appropriately changed according to the slump value of the main computer in the mixer drum 20, the composite image 41 is viewed even when the slump value of the first computer is changed. Thus, the amount of fresh concrete in the mixer drum 20 can be easily grasped.

  In addition, the portable terminal 30 further includes an input unit 33 capable of inputting the slump value of the capacitor in the mixer drum 20, and in the image combining step, the loading amount scale 43 corresponding to the slump value input through the input unit 33 is It is superimposed on the captured image 40.

  In this configuration, the composite image 41 is generated by superimposing the loading amount scale 43 corresponding to the slump value input through the input unit 33 on the captured image 40. For this reason, even when the slump value of the fresh concrete changes, the amount of fresh concrete in the mixer drum 20 can be easily grasped by looking at the composite image 41.

  Also, a portable terminal provided with a camera 31 capable of capturing the inside of the mixer drum 20 rotatably mounted on the mixer vehicle 10, and a display unit 32 capable of displaying the captured image 40 in the mixer drum 20 captured by the camera 31. The program for displaying a live control volume for controlling the live volume in the mixer drum 20 by controlling 30 is the slump value of the live response in the mixer drum 20 with respect to the captured image 40 in the mixer drum 20 captured by the camera 31 in the portable terminal 30. And the display step of displaying the composite image 41 on the display unit 32 are executed.

  In this configuration, since the amount of fresh concrete in the mixer drum 20 of the mixer vehicle 10 can be grasped by the portable terminal 30, it is not necessary to assemble an imaging device, a control device, and a display device into each mixer vehicle 10 as in the prior art. Therefore, the amount of fresh concrete in the mixer drum 20 can be grasped at low cost.

  Further, in this configuration, the composite image 41 in which the loading amount scale 43 according to the slump value of the main computer in the mixer drum 20 is superimposed on the captured image 40 obtained by imaging the inside of the mixer drum 20 of the mixer vehicle 10 is It is displayed on the display unit 32. Therefore, the amount of fresh concrete in the mixer drum 20 of the mixer truck 10 can be easily grasped simply by looking at the composite image 41 displayed on the display unit 32 of the portable terminal 30.

  As mentioned above, although the embodiment of the present invention was described, the above-mentioned embodiment showed only a part of application example of the present invention, and in the meaning of limiting the technical scope of the present invention to the concrete composition of the above-mentioned embodiment. Absent.

  DESCRIPTION OF SYMBOLS 10 ... Mixer car, 20 ... Mixer drum, 22, 23 ... Blade, 24 ... Seal pipe, 25 ... Cover member, 30 ... Mobile terminal, 31 ... Camera (imaging part , 32: display unit, 33: input unit, 34: tilt detection unit, 40: captured image, 41: composite image, 42: central point (rotation center), 43 ... Load amount scale, 44 ... first imaging guide (imaging guide), 45 ... second imaging guide (imaging guide), 50 ... controller, 51 ... image processing unit, 52 ... Storage unit 53 Estimation unit 54 Inclination determination unit 55 Guide display unit

Claims (6)

The mixer drum using a portable terminal provided with an imaging unit capable of imaging the inside of a mixer drum rotatably mounted on a mixer vehicle, and a display unit capable of displaying a captured image in the mixer drum imaged by the imaging unit A method of displaying the amount of fresh concrete within the
An image combining step of generating a composite image by superimposing a loading amount scale according to a slump value of fresh concrete in the mixer drum on a captured image in the mixer drum captured by the imaging unit;
Displaying the composite image on the display unit;
Method of displaying the amount of fresh concrete characterized by including The image pickup unit further includes an imaging step for enabling the inside of the mixer drum to be imaged.
The method according to claim 1, wherein in the imaging step, an imaging guide for guiding the rotational position of the mixer drum to a predetermined position is displayed on the display unit. The mobile terminal further includes a tilt detection unit that detects a tilt of the mobile terminal with respect to a horizontal surface,
In the image combining step, a corrected image in which the captured image is corrected to a horizontal state is generated based on the tilt of the portable terminal detected by the tilt detection unit when the captured image is captured, and the corrected image is generated. The method for displaying the amount of fresh concrete according to claim 1 or 2, wherein the loading amount scale is superimposed.   The loading scale indicates the liquid level of fresh concrete in the mixer drum, which changes according to the amount of fresh concrete in the mixer drum, and the slope of the loading scale corresponds to the slump value. The method of displaying the amount of fresh concrete according to any one of claims 1 to 3, characterized by changing. The portable terminal further includes an input unit capable of inputting the slump value of fresh concrete in the mixer drum,
5. The image composition step according to claim 1, wherein the loading amount scale according to the slump value input through the input unit is superimposed on the captured image. How to display the amount of fresh concrete described in. Controlling a portable terminal including an imaging unit capable of imaging the inside of the mixer drum rotatably mounted on the mixer vehicle, and a display unit capable of displaying a captured image in the mixer drum imaged by the imaging unit; A fresh concrete amount display program for displaying the amount of fresh concrete in a mixer drum,
In the mobile terminal,
An image combining step of generating a composite image by superimposing a loading amount scale according to a slump value of fresh concrete in the mixer drum on a captured image in the mixer drum captured by the imaging unit;
And a display step of displaying the composite image on the display unit.

Images