Detection device

Abstract

To provide a detection device in which detection accuracy of a sensor unit is less likely to be reduced.SOLUTION: A detection device includes a case member 50 having a space H, a holding member 40 that partitions the space H into a first space H1 and a second space H2, a sensor unit 21 that acquires information on a movement of a boom 4 provided in a hydraulic excavator 2 and outputs the acquired information on the movement, and a substrate 20 on which the sensor unit 21 is provided. A filling member 100 is filled in the first space H1 so as to position the substrate 20 and cover the substrate 20 in the first space H1 defined by the holding member 40 and the case member 50.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a detection device that is disposed on a movable part such as a boom, arm, or bucket that is provided on a work machine. [Background technology]

[0002] A conventional detection device of this type is known, for example, from Patent Document 1. The detection device described in Patent Document 1 is mainly composed of a sensor unit (inertial sensor) consisting of an angular velocity sensor and an acceleration sensor, and a rectangular substrate on which the sensor unit is mounted, and the substrate is housed in a container (case member) with its four corners supported by cylindrical cushioning materials. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-85441 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of the detection device described in Patent Document 1, the four corners of the circuit board are supported by cushioning materials, but the center of the circuit board is not supported by cushioning materials. Therefore, it is conceivable that the center of the circuit board may bend or resonate due to impacts, vibrations, etc., during excavation work by a work machine. Then, vibrations caused by such bending or resonance may be transmitted to the sensor unit mounted on the circuit board, potentially degrading the detection accuracy of the sensor unit.

[0005] SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has an object to provide a detection device in which there is no risk of the detection accuracy of the sensor unit decreasing. [Means for solving the problem]

[0006] The present invention provides a device comprising: a case member having a space portion; a partition member that partitions the space portion into a first space portion and a second space portion; a sensor unit that acquires information relating to the movement of a movable portion provided in a moving body and outputs the acquired information relating to the movement; and a substrate on which the sensor unit is disposed. ,before the substrate is positioned in the first space, which is an area surrounded by the partition member and the case member, and a filling member is filled in the first space so as to cover the substrate; The partition member is provided with a hole for injecting the filling material into the first space. It is characterized by:

[0007] The present invention also provides The device is configured to include a power supply means for supplying power to the board and a cover member for covering the open portion of the space, and the power supply means is positioned in the second space, which is an area surrounded by the partition member, the case member, and the cover member. It is characterized by:

[0008] In the invention, the power supply means is preferably made up of a battery serving as a power source for supplying the power, and a battery case for accommodating the battery.

[0009] In the invention, the substrate and the power supply means are disposed so as to overlap each other in the space.

[0010] The present invention is also characterized in that the partition member is provided in the space portion so as to be interposed between the substrate and the power supply means, and the substrate and the power supply means are held by the partition member.

[0011] In the invention, the partition member is provided with a positioning portion for positioning and fixing the outer periphery of the substrate.

[0012] In the invention, a covering member for covering the sensor portion is disposed on the substrate. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide a detection device in which there is no risk of the detection accuracy of the sensor unit decreasing. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram showing a work support system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram of the work support system according to the embodiment. [Figure 3] FIG. 2 is a front view of the detection device according to the embodiment. [Figure 4] Cross section AA of Figure 3. [Figure 5] 5 is a diagram showing the substrate and the partition member as viewed from the direction of arrow D in FIG. 4. FIG. [Figure 6] 5 is a rear view of the detection device when the mounting member is viewed from the case member side in FIG. 4. FIG. [Figure 7] Cross section B-B of Figure 3. [Figure 8] Cross section CC of Figure 3. [Figure 9] FIG. 4 is an enlarged cross-sectional view of a main part showing the cover member, the magnetic member, and the mounting member according to the embodiment. [Figure 10] FIG. 10 is a diagram showing a substrate and a partition member according to a modified example of the embodiment. [Figure 11] FIG. 11 is an enlarged cross-sectional view of a main part of the substrate in FIG. 10 . DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment in which a detection device of the present invention is applied to a work support system will be described below with reference to FIGS.

[0017] FIG. 1 is a diagram showing a task support system 1 according to an embodiment of the present invention, and FIG. 2 is a block diagram of the task support system 1. As shown in FIG.

[0018] The work support system 1 uses a machine guidance function to support the work of an operator operating a hydraulic excavator 2, which is a construction machine (mobile body). The hydraulic excavator 2 has a main body 3 that moves on caterpillar tracks and is provided with movable parts, such as a boom 4, an arm 5, and a bucket 6, in that order. The work support system 1 is not limited to hydraulic excavators 2, and can be widely applied to various types of work machines used in civil engineering, construction, and agricultural work, such as construction machines used for ground improvement work. In the following description, the boom 4, arm 5, and bucket 6 may be referred to as movable parts.

[0019] 2, the work support system 1 is mainly composed of detection devices 11a, 11b, and 11c, a main device 12, a mobile information terminal device 13, and a notification unit 14. Here, the detection devices 11a, 11b, and 11c are provided on the boom 4, arm 5, and bucket 6, respectively, of the hydraulic excavator 2, and acquire information relating to the movement of the movable parts (for example, attitude information of the movable parts) using sensor units described below, and send (output) the information relating to the movement of the movable parts to the main device 12 via data communication using a wireless communication unit described below. Here, the attitude information is information that can detect the attitude of each movable part, and in this embodiment, three-dimensional acceleration information and angular velocity information are applied.

[0020] Next, the detectors 11a, 11b, and 11c will be described. In this embodiment, the detectors 11a, 11b, and 11c have the same configuration, so the configuration of the detector 11a will be described below, and descriptions of the detectors 11b and 11c will be omitted.

[0021] The detection device 11a is provided on the boom 4, and as shown in Figures 3 and 4, includes a substrate 20, a power supply means 30, a holding member 40, a case member 50, a cover member 60, a magnetic member 70, an attachment member 80, an airtight member 90, and a filling member 100.

[0022] The substrate 20 is a wiring board on which a predetermined wiring pattern is applied, and is disposed in a space H that is inside the case member 50. In this case, the sensor unit 21, the control unit 22, and circuit components such as resistors and capacitors (not shown) are mounted (disposed) on one surface P1 of the substrate 20 facing the bottom side of the case member 50, which will be described later, and the wireless communication unit 23 connected to the control unit 22 is mounted on the other surface P2 of the substrate 20 opposite to the one surface P1.

[0023] For example, a 6-axis IMU (Inertial Measurement Unit) sensor combining a 3D acceleration sensor and an angular velocity sensor can be applied to the sensor unit 21, and it detects 3D acceleration and angular velocity. Note that the sensor unit 21 is not limited to the above-mentioned IMU sensor, and various configurations capable of detecting the attitude of the moving part, such as an acceleration sensor, an angular velocity sensor, or a geomagnetic sensor, can be widely applied. The measurement results by the sensor unit 21 are then processed by a control unit 22 incorporating an arithmetic processing circuit, thereby making it possible to acquire the attitude information of the corresponding moving part.

[0024] Wireless communication unit 23 can be, for example, an antenna circuit pattern formed on the other surface P2 of substrate 20, and can transmit the attitude information of the movable part processed by control unit 22 to main device 12 by wireless data communication. Note that wireless communication unit 23 can also be a communication unit having an antenna instead of the above-mentioned antenna circuit pattern.

[0025] The power supply means 30 is composed of a battery 31, which serves as a power source for supplying power to the substrate 20, and a battery case 32 that houses the battery 31. The battery 31 is made up of three dry cells 31a to 31c arranged in parallel with one another, and the substrate 20 operates using the power supplied from the battery 31, and transmits the attitude information of the movable part processed by the control unit 22 to the main device 12 via the wireless communication unit 23.

[0026] The battery case 32 is formed of, for example, a resin material and includes a base 32a provided parallel to the substrate 20, a peripheral wall 32b erected from the periphery of the base 32a, and partition walls 32c for separating the dry batteries 31a and 31b and the dry batteries 31b and 31c. Focusing on the positional relationship between the substrate 20 and the power supply means 30, the substrate 20 and the power supply means 30 are disposed so as to overlap in the space H inside the case member 50.

[0027] The holding member 40 is a substantially flat resin case (inner case) that holds the substrate 20 and the power supply means 30, and is provided in the space H inside the case member 50 so as to be interposed between the substrate 20 and the power supply means 30. The holding member 40 is provided with a flat portion 41 that is provided so as to be parallel to the substrate 20, four protruding portions 42 that protrude toward the substrate 20, and three positioning portions 43 (see FIG. 5) for positioning and fixing the outer periphery 24 of the substrate 20.

[0028] The flat plate portion 41 of the holding member 40 is provided with a hole 41a (see FIG. 5) for injecting the filling member 100 into a first space portion, which will be described later, that is a part of the space portion H. The hole 41a is formed in an opening substantially at the center of the flat plate portion 41.

[0029] The flat plate portion 41 is joined to the battery case 32 with double-sided tape 44. This allows the flat plate portion 41 (holding member 40) to hold the battery case 32 (power supply means 30). Furthermore, since the battery case 32 (power supply means 30) is located directly above the flat plate portion 41 (on the cover member 60 side), if the battery 31 stops functioning (runs out of power), the battery 31 housed in the battery case 32 can be easily replaced by removing the cover member 60 from the case member 50. The area located directly above the flat plate portion 41 is configured as a second space portion, which will be described later, that is part of the space portion H.

[0030] Although detailed illustration is omitted here, the protrusion 42 is provided with a threaded portion into which the screw S is screwed, and the substrate 20 is provided with a screw hole through which the screw S is passed, and the substrate 20 is fixed to the holding member 40 by fixing the screw S using the screw hole and the threaded portion. In other words, this means that the substrate 20 is configured to be held by the protrusion 42 (holding member 40).

[0031] The positioning portions 43 are, for example, positioning ribs for positioning and fixing the outer periphery 24 at three locations on the substrate 20, and are provided, for example, in FIG. 5 , at two locations along the longitudinal direction of the substrate 20 and at one location along a direction approximately perpendicular to the longitudinal direction. The positioning portions 43 are provided to prevent the substrate 20 from shifting in position when the substrate 20 and the holding member 40 are fastened together using the screws S described above. In this example, the battery case 32 is joined to the flat plate portion 41, and the substrate 20 is fastened to the protruding portion 42 with the screws S, so that the substrate 20 and the power supply means 30 are held on the front and back of the holding member 40.

[0032] Furthermore, the holding member 40 here not only has the function of holding the substrate 20 and the power supply means 30, but also functions as a partition member for dividing (compartmenting) the space H into two spatial regions, the first space and the second space. In other words, this means that the holding member 40 corresponds to a partition member described in the claims below.

[0033] The case member 50 is formed of, for example, a resin material, and houses the substrate 20, the power supply means 30, the holding member 40, and a part of a main body portion (described later) of the cover member 60 in a space H therein. The case member 50 includes a bottom portion 51 serving as a first wall portion provided to face the substrate 20, a substantially frame-shaped side portion 52 serving as a second wall portion surrounding the periphery of the substrate 20, the power supply means 30, and the holding member 40, and an opening portion 53 provided to correspond to the bottom portion 51.

[0034] The side portion 52 has a thick side portion 52a that is roughly frame-shaped and has a portion located on the open portion 53 side that is thicker than the other portions, and the thick side portion 52a (side portion 52) has a recessed portion 52b consisting of a frame-shaped groove provided in a position corresponding to a mounting portion (described later) of the cover member 60. Furthermore, support portions 52c are formed as raised portions on the inside of the side portion 52 to support the rear side peripheral portion of the flat plate portion 41 that faces the bottom portion 51. Here, the support portions 52c are provided in four locations so as to support the four corners of the rear side peripheral portion, and are fixed to the flat plate portion 41 using appropriate fixing means such as screws.

[0035] In this example, the holding member 40 is provided in a substantially central region of the space H, which is an area surrounded by the bottom 51 and the side 52, so as to be substantially parallel to the bottom 51, thereby dividing the space H into a first space H1 and a second space H2. The first space H1 is configured as an area surrounded by the holding member 40, the bottom 51, and the side 52 (i.e., the holding member 40 and the case member 50). On the other hand, the second space H2 is configured as an area surrounded by the holding member 40, the side 52, and the cover member 60 (i.e., the holding member 40, the case member 50, and the cover member 60), and the power supply means 30 is positioned in this second space H2.

[0036] 4, the substrate 20 on which the sensor unit 21 is mounted is positioned in a first space H1, which is an area surrounded by the holding member 40, the bottom 51, and the side 52, and the filling material 100 is filled (injected) into the first space H1 using the holes 41a formed in the flat plate portion 41 of the holding member 40. When injecting the filling material 100 into the first space H1, although detailed illustration is omitted, a case member 50 is prepared in which only the holding member 40 that fixedly holds the substrate 20 is installed in the space H, and the power supply means 30 and the cover member 60 are not installed in the space H, and the filling material 100 is injected into the first space H1 through the holes 41a formed in the flat plate portion 41 so as to cover the substrate 20.

[0037] Reference numeral 54 denotes six first bulging portions having a substantially semicircular ring shape bulging outward from the thick side portion 52a (see FIG. 6). These first bulging portions 54 have holes 54a for passing bolts T shown by dotted lines in FIG. 7, and are provided at the four corners, the center of the upper end, and the center of the lower end of the case member 50 having the space portion H in FIG. 6.

[0038] The cover member 60 is formed, for example, from a resin material, and is disposed on the thick side portion 52a (side portion 52) so as to close (cover) the open portion 53 of the space H. As shown in Figures 3 to 7, the cover member 60 includes a main body portion 61 that constitutes the main portion thereof, a placed portion 62 that is formed around the main body portion 61 and placed on the thick side portion 52a (side portion 52), a pair of protruding portions 63 that protrude in the left and right directions of the placed portion 62 so as not to overlap with the case member 50, and six substantially semicircular ring-shaped second protruding portions 64 that protrude outward from the placed portion 62 to correspond to the first protruding portions 54.

[0039] The main body 61 has a flat surface 61a facing the battery 31 and an exposed surface 61b located on the opposite side to the flat surface 61a, the flat surface 61a being provided so as to abut against the battery 31, and the exposed surface 61b having two accommodation portions 61c each having a generally concave cross section for accommodating the magnetic member 70. Also, 61d is a screw-threaded portion formed from the accommodation portion 61c toward the battery 31, and the screw-threaded portion 61d is used when fixing the cover member 60 and the magnetic member 70 together with screws.

[0040] In this embodiment, the flat surface 61a and the battery 31 are in contact with each other, but it is also possible to provide a gap between the flat surface 61a and the battery 31 and insert a cushioning material such as a sponge to fill the gap.

[0041] The mounting portion 62 is provided with a generally frame-shaped protrusion 62a that fits into the recess 52b. The protruding portion 63 is formed with a positioning hole 63a for positioning a positioning pin (described later) of the mounting member 80 (see FIG. 8). The second bulging portion 64 has a hole 64a that corresponds to the hole 54a as shown in FIG. 7, and the cover member 60 is fastened and fixed to the case member 50 by fixing the bolt T to the holes 64a, 54a.

[0042] The magnetic member 70 is composed of a magnet 71 and a yoke 72 (which houses the magnet 71), both of which are made of a magnetic material. The magnet 71 is formed, for example, in a generally annular shape, and as shown in FIGS. 4 and 9, includes a first exposed portion 71a located on the mounting member 80 side, a corresponding portion 71b provided to correspond (face) to the first exposed portion 71a, and a side portion 71c connecting the first exposed portion 71a and the corresponding portion 71b. The first exposed portion 71a is configured as an annular exposed surface, the corresponding portion 71b is configured as an annular surface, and the side portion 71c is configured as a curved side surface. In addition, a generally inverted V-shaped hole 71d is formed in the center of the magnet 71, through which a fixing screw (described later) passes. The shape of the magnet 71 may be a shape other than an annular shape.

[0043] On the other hand, the yoke 72 made of an iron-based material includes a base portion 72a located on the corresponding portion 71b side and an enclosing portion 72b surrounding the side portion 71c, and a hole 72c communicating with the hole 71d is formed in the center of the base portion 72a. In this case, the first exposed portion 71a configured as an annular exposed surface is located on approximately the same plane as the exposed surface 61b of the main body portion 61, and the first exposed portion 71a and the exposed surface 61b are one step lower than the second exposed portion 72d of the yoke 72 located on the tip side (mounting member 80 side) of the enclosing portion 72b. The second exposed portion 72d is configured as an annular exposed surface.

[0044] The magnetic member 70 configured in this manner is fixed to the cover member 60 by adhesive S1 and fixing screws S2. That is, in this case, the base 72a (magnetic member 70) and the main body 61 (cover member 60) are joined together by adhesive S1 present between the surface X1 of the base 72a and the opposing surface X2 of the accommodation portion 61c opposing thereto, and the magnetic member 70 and the main body 61 (cover member 60) are fixed together by fixing screws S2 that pass through the holes 71d and 72c in this order and screw into the threaded engagement portion 61d.

[0045] The mounting member 80 is a thin mounting plate made of a magnetic material that can be magnetically coupled (fixed) to the second exposed portion 72d of the yoke 72. That is, the mounting member 80 here is coupled to the magnetic member 70 by the second exposed portion 72d, and gaps G are formed between the mounting member 80 and the first exposed portion 71a, and between the mounting member 80 and the exposed surface 61b.

[0046] Furthermore, the mounting member 80, which is provided so as to be interposed between the movable part (boom 4) and the cover member 60, has a pair of positioning pins 81 formed at the center of the left end and the center of the right end of the mounting member 80 in Fig. 6, protruding toward the case member 50 (see Figs. 4, 6, and 8). In this case, the pair of positioning pins 81 are positioned and fixed in a pair of positioning holes 63a of the protruding part 63, respectively, and are located on an imaginary line L that divides the mounting member 80 (cover member 60) into two equal parts above and below in Fig. 6. In addition to the positioning pins 81 (positioning holes 63a), the magnetic member 70 (accommodating part 61c) is also located on this imaginary line L.

[0047] 7, the airtight member 90 can be a substantially frame-shaped (approximately rectangular cross section) packing placed in a space 91 formed between the protrusion 62a and the recess 52b. In other words, in this case, the airtight member 90 is embedded in the recess 52b while being compressed by the protrusion 62a. By providing the airtight member 90 in this manner, the airtight state of the space H surrounded by the case member 50 and the cover member 60 is maintained favorably, and foreign matter such as moisture and dust can be prevented from entering the space H.

[0048] The filling member 100 is made of a thermoplastic resin such as epoxy resin or urethane resin, and is filled into the first space H1. The filling member 100 makes it possible to airtightly fix the board 20, on which the sensor unit 21 and the circuit components are mounted, so that the board 20 is immobile. Furthermore, by filling the first space H1 with the filling member 100, even if foreign matter such as water or dust enters the inside of the case member 50 due to deterioration of the airtight member 90 over time, for example, the filling member 100 ensures insulation between the board 20 and the foreign matter, thereby preventing malfunction of the board 20.

[0049] The above-described components constitute the detection device 11a. Then, the flat surface 82 of the mounting member 80 located on the opposite side from the positioning pin 81 and the outer surface 4a of the boom 4 facing the flat surface 82 are joined together using double-sided tape 110 as joining means, thereby fixing the detection device 11a to the boom 4 (see FIG. 4).

[0050] The main body device 12 is provided in the main body 3 of the hydraulic excavator 2, acquires attitude information from the detection devices 11a, 11b, and 11c, and sends it out by wireless data communication, and also receives support information by wireless data communication and outputs it to the notification unit 14. For this reason, the main body device 12 includes a detection unit 12a, a microcomputer 12b, and a communication unit 12c that transmits and receives various data between the detection devices 11a, 11b, and 11c and the portable information terminal device 13 by wireless data communication, as shown in FIG.

[0051] Detection unit 12a has the same configuration as detection devices 11a, 11b, and 11c, and acquires attitude information of main body 3. Microcomputer 12b controls the operation of each unit by executing a control program related to main body device 12 using a built-in arithmetic processing circuit. As a result, microcomputer 12b processes the measurement results output from detection unit 12a in response to instructions from mobile information terminal device 13 to acquire attitude information of main body 3, and also acquires attitude information from detection devices 11a, 11b, and 11c.

[0052] Furthermore, the microcomputer 12b transmits the attitude information to the portable information terminal device 13 by wireless data communication. The microcomputer 12b also receives support information transmitted from the portable information terminal device 13 and outputs the support information to the notification unit 14. Note that the support information here refers to support information that supports the operation of the operator. Furthermore, if sufficient for practical use, the detection unit 12a may be omitted as necessary.

[0053] The mobile information terminal device 13 is a so-called smartphone or tablet terminal, and by executing application software related to this work support system 1, support information is generated to support the operator's operation based on posture information obtained by the detection devices 11a, 11b, and 11c via the main body device 12 and posture information acquired by the detection unit 12a. In this embodiment, the difference between the construction target of the hydraulic excavator 2 (movement amount to the construction target) is assigned to this support information, thereby enabling construction to be carried out easily and reliably using the support information.

[0054] The mobile information terminal device 13 includes a microcomputer 13a, a communication unit 13b, and a display unit 13c. The mobile information terminal device 13 acquires posture information from the main device 12 through data communication via wireless communication using the communication unit 13b, and further outputs support information that supports the operator's operation to the main device 12. The mobile information terminal device 13 also acquires application software related to the work support system 1 from a server on the network.

[0055] Mobile information terminal device 13 executes application software acquired by communication unit 13b on microcomputer 13a and detects the attitude of main body 3 from attitude information acquired in a reference attitude (for example, the attitude when bucket 6 is placed on the ground surface at the start of construction). Mobile information terminal device 13 also calculates the change in attitude (movement amount) of each moving part based on changes in each attitude information from this reference attitude, and calculates the current position of bucket 6.

[0056] The microcomputer 13a accepts the setting of the construction target in advance, sequentially calculates the current position of the bucket 6 based on the posture information sequentially input from the main device 12, and calculates the amount of movement to the construction target by calculating the deviation (difference value) from the construction target. Furthermore, the microcomputer 13a outputs the calculated amount of movement to the construction target from the communication unit 13b via the main device 12 by the notification unit 14 as support information.

[0057] The microcomputer 13a also executes a process for sequentially displaying the calculation results of the amount of movement up to the construction target on the display unit 13c, which is configured with a display medium such as a liquid crystal display panel. In this case, the notification unit 14 may also display the same content as that displayed on the display unit 13c.

[0058] The notification unit 14 notifies the operator in the driver's seat of the hydraulic excavator 2 of support information that is input from the main unit 12 to assist the operator in his / her operation, and in this embodiment, it displays, for example, the amount of movement to the construction target using a segment display using light-emitting diodes.

[0059] The notification unit 14 may be configured with an image display panel or the like. In addition, when using an image display panel or the like to make a notification, various methods can be applied, such as notifying by displaying a numerical value or by displaying a meter. Furthermore, instead of a segment display or a display on an image display panel, notification may be made by voice or an alarm sound. Furthermore, the notification unit 14 may be directly driven by the mobile information terminal device 13.

[0060] As described above, this embodiment comprises a case member 50 having a space H, a holding member 40 that divides the space H into a first space H1 and a second space H2, a sensor unit 21 that acquires information relating to the movement of the boom 4 provided on the hydraulic excavator 2 and outputs the acquired information relating to the movement, and a board 20 on which this sensor unit 21 is arranged, and the board 20 is positioned in the first space H1, which is an area surrounded by the holding member 40 and the case member 50, and the first space H1 is filled with a filling member 100 so as to cover the board 20.

[0061] Therefore, the filling member 100 is filled into the first space H1 so as to cover the substrate 20, and the substrate 20 is placed in an airtight manner in the first space H1 so as to be immobile. This prevents the substrate 20 from bending, and vibrations caused by the bending due to impacts, vibrations, etc. are not transmitted to the sensor unit 21 mounted on the substrate 20 during excavation work with the hydraulic excavator 2, making it possible to provide a detection device that is free from the risk of a decrease in the detection accuracy of the sensor unit 21.

[0062] In addition, in this embodiment, the power supply means 30 is positioned in the second space portion H2, so that if the battery 31 stops functioning (runs out of power), the battery 31 stored in the battery case 32 can be easily replaced by removing the cover member 60 from the case member 50.

[0063] In addition, in this embodiment, the substrate 20 and the power supply means 30 are arranged so as to overlap in the space portion H, which prevents the shape of the side portion 52 of the case member 50 from becoming larger, making it possible to provide a compact detection device.

[0064] The present invention is not limited to the above-described embodiments and drawings. The embodiments and drawings may be modified (including the deletion of components) as appropriate within the scope of the present invention.

[0065] For example, in the above-described embodiment, the sensor unit 21 is mounted on one surface P1 of the substrate 20, but as a modified example of this embodiment, a covering member 25 consisting of a protective cap or the like for covering the sensor unit 21 may be arranged (fixed) on one surface P1 of the substrate 20, as shown in Figures 10 and 11.

[0066] The covering member 25 includes, for example, a base portion 25a provided parallel to the substrate 20, and a peripheral wall 25b located between the periphery of the base portion 25a and the substrate 20. By providing the covering member 25 that covers the sensor portion 21 on the substrate 20 in this manner, it is possible to obtain the same effects as those of the above-described embodiment, and

[0067] The shape of the covering member 25 can be any shape that covers the sensor portion 21. For example, although detailed illustration is omitted here, a covering member consisting of a base portion 25a, a peripheral wall 25b, and a flange portion extending around the peripheral wall 25b so as to abut against the substrate 20 can be used.

[0068] In the above-described embodiment, the hole 41a used to fill the first space H1 with the filling member 100 is provided in one location in the flat plate portion 41. However, the number of the hole 41a may be multiple. [Explanation of symbols]

[0069] 1. Work support system 2 Hydraulic excavator (mobile) 3 Main unit 4 Boom (moving part) 5 Arm (movable part) 6 Bucket (moving part) 11a, 11b, 11c Detector 12 Main unit 13 Mobile terminal display device 14 Notification Department 20 PCB 21 Sensor section 24 Outer periphery 25 Covering material 30 Power supply means 31 Battery 32 Battery case 40 Retaining member (partition member) 41 Flat plate part 41a Hole 43 Positioning part 50 Case material 51 bottom (first wall) 52 Side (second wall) 52a Thick side 53 Open area 60 Cover member 70 Magnetic materials 71 Magnet 72 York 80 Mounting material 90 Airtight materials 100 Filler material H space part H1 First space H2 Second space

Claims

1. a case member having a space; a partition member that partitions the space into a first space and a second space; a sensor unit that acquires information relating to the movement of a movable unit provided in the moving body and outputs the acquired information relating to the movement; a substrate on which the sensor unit is disposed, the substrate is positioned in the first space, which is an area surrounded by the partition member and the case member, and a filler is filled in the first space so as to cover the substrate; The detection device is characterized in that the partition member is provided with a hole for injecting the filling material into the first space.

2. A power supply means for supplying power to the substrate; a cover member for covering an opening of the space, 2. The detection device according to claim 1, wherein the power supply means is located in the second space, which is an area surrounded by the partition member, the case member, and the cover member.

3. 3. The detection device according to claim 2, wherein the power supply means comprises a battery serving as a power source for supplying the power, and a battery case for accommodating the battery.

4. 4. The detection device according to claim 2, wherein the substrate and the power supply means are disposed so as to overlap each other in the space.

5. the partition member is provided in the space portion so as to be interposed between the substrate and the power supply means, 5. The detection device according to claim 2, wherein the partition member holds the substrate and the power supply means.

6. 6. The detection device according to claim 1, wherein the partition member is provided with a positioning portion for positioning and fixing the outer periphery of the substrate.

7. 7. The detection device according to claim 1, wherein a covering member that covers the sensor portion is disposed on the substrate.

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