JP7298425B2 - Measuring device unit - Google Patents

Description

The present disclosure relates to metrology units.

A support for loading cargo is sometimes provided on the roof of the vehicle. A technique for improving the holding force of a support with respect to a vehicle by using a so-called downforce, in which a downward force is obtained from an inclined surface of the support by using an air current during running of the vehicle, has been disclosed (for example, Patent Document 1).

U.S. Pat. No. 7,654,423

There is a problem that the inclined surface of the support increases the air resistance during running of the vehicle and lowers the fuel efficiency.

The present disclosure can be implemented as the following forms.
[Mode 1]
According to one aspect of the present disclosure, a measuring device unit (100, 100b, 100e) mounted on a roof (50T, 50eT) of a vehicle (50, 50e) is provided. This measurement device unit includes a plurality of detectors (30), a data processor (20) that generates integrated data using the detection results of the plurality of detectors, and a housing that accommodates the data processor. (60, 60b, 60e), wherein the front end portion (60F) corresponds to the front side of the vehicle when mounted on the vehicle, and the rear end portion (60R) corresponds to the rear side of the vehicle when mounted. a support mechanism (70) for separating the housing from the roof of the vehicle and fixing the housing to the vehicle; and narrowed portions (80, 80e) provided on the lower surface (60BT) of the housing ), wherein the distance (D2) from the lower end (80BT) of the throttle portion to the roof of the vehicle when mounted is smaller than the distance (D1, D5) from the front end to the roof of the vehicle. and The narrowed portion is provided at a position including the center of gravity of the measuring device unit.

According to one aspect of the present disclosure, a measuring device unit (100, 100b, 100c) mounted on a roof (50T, 50eT) of a vehicle (50, 50e) is provided. This measurement device unit includes a plurality of detectors (30), a data processor (20) that generates integrated data using the detection results of the plurality of detectors, and a housing that accommodates the data processor. (60, 60b, 60e), wherein the front end portion (60F) corresponds to the front side of the vehicle when mounted on the vehicle, and the rear end portion (60R) corresponds to the rear side of the vehicle when mounted. a support mechanism (70) for separating the housing from the roof of the vehicle and fixing the housing to the vehicle; and narrowed portions (80, 80e) provided on the lower surface (60BT) of the housing ), wherein the distance (D2) from the lower end (80BT) of the throttle portion to the roof of the vehicle when mounted is smaller than the distance (D1, D5) from the front end to the roof of the vehicle. and

According to the measuring device unit of this form, the diaphragm is provided on the bottom surface of the housing. By reducing the distance between the lower surface of the housing and the roof of the vehicle in a part of the housing, an increase in air resistance can be suppressed, and a decrease in fuel efficiency of the vehicle can be suppressed. By generating a downforce directed toward the vehicle with respect to the housing, it is possible to improve the holding force of the support mechanism with respect to the vehicle.

According to one aspect of the present disclosure, a measuring device unit (100c) mounted on a roof (50T) of a vehicle (50) is provided. This measurement device unit includes a plurality of detectors (30), a data processor (20) that generates integrated data using the detection results of the plurality of detectors, and a housing that accommodates the data processor. (60c); A vertical cross-sectional shape of the housing along the traveling direction of the vehicle may have an inverted wing shape.

According to the measuring device unit of this form, the housing has an inverted wing shape in the vertical cross section. Therefore, it is possible to improve the holding force of the support mechanism with respect to the vehicle by generating a downforce on the housing using the airflow when the vehicle is running.

According to one aspect of the present disclosure, a measuring device unit (100d) mounted on a roof (50T) of a vehicle (50) is provided. This measurement device unit includes a plurality of detectors (30), a data processor (20) that generates integrated data using the detection results of the plurality of detectors, and a housing that accommodates the data processor. (60d), the housing having a front end (60F) corresponding to the front side of the vehicle when mounted on the vehicle, and a rear end (60R) corresponding to the rear side of the vehicle when mounted on the vehicle; and a support mechanism (70d) for fixing the housing to the vehicle in a state of being separated from the roof of the vehicle. The support mechanism is a support body (73d, 74d) extending in the width direction of the housing for supporting the housing, and the support mechanism extends from the lower end (73dB, 74dB) of the support body at the time of mounting. a support whose distance (D2) to the vehicle roof is smaller than the distance (D1) from said front end to said vehicle roof.

According to this aspect of the measuring device unit, it is provided with a support that supports the housing. In the support mechanism when mounted on a vehicle, the distance from the lower end of the support to the roof of the vehicle is smaller than the distance from the front end side to the roof of the vehicle. Since the shape of the support can be used to obtain downforce, the shape of the bottom surface of the housing can be simplified.

Explanatory drawing which represents typically the measuring device unit of 1st Embodiment. The front view which represents a measuring device unit typically. FIG. 2 is a top view schematically showing a measuring device unit; FIG. 3 is a schematic cross-sectional view at the IV-IV position in FIG. 2; FIG. 9 is an explanatory diagram showing the configuration of a diaphragm portion in the second embodiment; Explanatory drawing showing the outer shape of the housing|casing in 3rd Embodiment. FIG. 11 is an explanatory diagram showing the configuration of a support mechanism according to the fourth embodiment; The perspective view showing the structure of the support mechanism in 4th Embodiment. FIG. 11 is an explanatory diagram showing the configuration of a diaphragm portion in the fifth embodiment;

A. First embodiment:
A measuring device unit 100 of the present embodiment will be described with reference to FIGS. 1 to 3. FIG. As shown in FIGS. 1 and 2, the measuring device unit 100 is mounted on the roof 50T of the vehicle 50 and used. FIG. 1 shows the traveling direction of the vehicle 50 and the Z direction, which is the vertical direction. In this embodiment, the roof 50T of the vehicle 50 is substantially parallel to the horizontal plane. The measurement device unit 100 includes a housing 60 , a support mechanism 70 , a sensor group 30 and a data processing device 20 .

The housing 60 is attached to the support mechanism 70 by fasteners (not shown), and is fixed to the vehicle 50 by the support mechanism 70 while being separated from the roof 50T of the vehicle 50 . The housing 60 contains the data processing device 20 and covers at least part of the sensor group 30 . The housing 60 has a bottom surface 60BT and a top surface 60TP, and corresponds to the front side of the traveling direction of the vehicle 50 when the measuring device unit 100 is mounted on the vehicle 50 (hereinafter also simply referred to as "when mounted on the vehicle"). It has a front end portion 60F and a rear end portion 60R corresponding to the rear side of the traveling direction of the vehicle 50 .

The top surface 60TP of the housing 60 has two planes, a top surface 60T1 on the front end portion 60F side and a top surface 60T2 on the rear end portion 60R side. The angle between the upper surface 60T1 and the upper surface 60T2 is an obtuse angle. The upper surface 60TP of the housing 60 is not limited to two flat surfaces, and may be a curved surface extending from the front end portion 60F to the rear end portion 60R. The lower surface 60BT of the housing 60 faces the roof 50T of the vehicle 50 when mounted on the vehicle. A diaphragm portion 80 is provided on the lower surface 60BT of the housing 60 .

As shown in FIG. 1, the narrowed portion 80 is a convex portion protruding from the lower surface 60BT of the housing 60 in this embodiment. The narrowed portion 80 is part of the bottom surface 60BT of the housing 60 and is formed integrally with the housing 60 . The constricted portion 80 has a substantially arcuate shape in a vertical cross section along the traveling direction of the vehicle 50 (hereinafter, also simply referred to as a “vertical cross section”), and has a curved surface on the protruding portion. The narrowed portion 80 is provided on the lower surface 60BT of the housing 60 including the center AX of the housing 60 as shown in FIG. 1, and is provided over the entire width of the housing 60 as shown in FIG.

The support mechanism 70 fixes the housing 60 while separating it from the roof 50T of the vehicle 50 . The data processing device 20 is placed on the upper surface of the support mechanism 70 . As shown in FIG. 3, the support mechanism 70 includes first fixing portions 71L and 71R, second fixing portions 72L and 72R, a first support shaft 73, a second support shaft 74, and a frame 75. there is It should be noted that illustration of the housing 60 is omitted in FIG.

The first fixing portions 71L, 71R and the second fixing portions 72L, 72R are arranged on both sides of the vehicle 50 in the width direction, respectively, and are fixtures for fixing the support mechanism 70 to the vehicle 50 . When the vehicle 50 has roof rails, the first fixing portions 71L, 71R and the second fixing portions 72L, 72R may be fixtures for fixing the housing 60 to the roof rails of the vehicle 50.

The second fixing portions 72L, 72R are arranged closer to the rear end portion 60R than the first fixing portions 71L, 71R in the vehicle traveling direction. FIG. 3 schematically shows the center AX of the housing 60 in plan view. The center AX of the housing 60 coincides with the center of gravity of the measuring device unit 100 of this embodiment. In this embodiment, the first fixing portions 71L and 71R are arranged closer to the front end portion 60F of the vehicle 50 than the center AX, and the second fixing portions 72L and 72R are arranged closer to the rear end portion 60R than the center AX of the housing 60. placed on the side. Note that the position of the center AX is common in each figure.

A first support shaft 73 extending along the width direction of the housing 60 is provided between the first fixing portion 71L and the first fixing portion 71R. A second support shaft 74 extending along the width direction of the housing 60 is provided between the second fixing portion 72L and the second support shaft 74d. The first support shaft 73 and the second support shaft 74 are fixed at a position separated from the roof 50T of the vehicle 50 and housed inside the housing 60 . The data processing device 20 is mounted on the upper surfaces of the first support shaft 73 and the second support shaft 74 . The first support shaft 73 and the second support shaft 74 function as supports that support the data processing device 20 .

As shown in FIG. 3 , a frame 75 is fixed to the first support shaft 73 and the second support shaft 74 . The frame 75 is a frame body arranged along the periphery inside the housing 60 and surrounds the data processing device 20 . In this embodiment, a plurality of sensor groups 30 are arranged on the frame 75 . The plurality of sensor groups 30 include, for example, a sensor group 30F corresponding to the front side of the vehicle 50, a sensor group 30B corresponding to the rear side, a sensor group 30L corresponding to the left side, and a sensor group 30R corresponding to the right side. included.

Each of the sensor groups 30F, 30B, 30L, and 30R includes, for example, a camera that acquires image data of an object, a LiDAR (Light Detection and Ranging) that acquires the distance of the object, and the like that acquires the distance of the object. Different types of detectors are included, such as millimeter wave radar. A detection result of each sensor is output to the data processing device 20 . Each of the sensor groups 30F, 30B, 30L, and 30R may include various detectors such as ultrasonic sensors, detectors using other electromagnetic waves or light, and may include one type, two types, and four types. Any of the above detectors may be included.

The data processing device 20 is composed of a logic circuit and is provided inside a box having dustproof and waterproof functions. The data processing device 20 is connected to the driving support control device 40 in the vehicle 50 via the wiring CB, as shown in FIG. The data processing device 20 generates integrated data using detection data from the sensor group 30 and outputs the integrated data to the driving support control device 40 . The driving assistance control device 40 is a so-called ECU (electronic control unit), and executes driving assistance of the vehicle 50 using information about objects around the vehicle 50 input from the measuring device unit 100 .

The details of the aperture section 80 included in the measuring device unit 100 of the present embodiment will be described with reference to FIG. 4 . As shown in FIG. 4, the lower surface 60BT of the housing 60 can be divided into a lower surface 60BT1 on the front end 60F side including the position where the narrowed portion 80 is provided, and a lower surface 60BT2 on the rear end 60B side. When mounted on a vehicle, the narrowed portion 80 faces the roof 50T of the vehicle 50 and protrudes from the lower surface 60BT1 of the housing 60 toward the vehicle 50 .

FIG. 4 shows the lower end 80BT of the narrowed portion 80 when it is mounted on the vehicle. A distance D2 from the lower end 80BT of the narrowed portion 80 to the roof 50T of the vehicle 50 is smaller than a distance D1 from the lower surface 60BT1 of the housing 60 at the front end 60F to the roof 50T of the vehicle 50 .

The flow paths of the airflow generated by the running of the vehicle 50 include a flow path on the upper surface 60TP side of the housing 60 as indicated by the airflow W11 in FIG. It is divided into a path that flows on the side of the lower surface 60BT1. As indicated by airflow W12, the air flowing on the side of the lower surface 60BT1 of the housing 60 flows between the lower surface 60BT1 and the roof 50T with the distance D1 and reaches the narrowed portion 80. FIG. The air reaching the constricted portion 80 is guided toward the lower end 80BT of the constricted portion 80 by the curved surface of the constricted portion 80, and as shown as an airflow W13, the air flows between the lower end 80BT of the constricted portion 80 and the vehicle 50 at a distance D2. and the roof 50T. The flow velocity of air flowing on the side of the lower end 80BT of the narrowed portion 80 is faster than the flow velocity of air flowing on the side of the lower surface 60BT1 of the front end portion 60F. Therefore, the pressure between the lower surface 60BT1 of the housing 60 at the position where the constricted portion 80 is provided and the roof 50T becomes greater than the pressure on the front end portion 60F side, and the down force, which is a vertically downward force applied to the housing 60. DF1 occurs.

In this embodiment, when mounted on a vehicle, the distance between the lower surface 60BT2 on the rear end portion 60R side of the narrowed portion 80 and the roof 50T of the vehicle 50 increases toward the rear end portion 60R. . That is, the lower surface 60BT2 of the housing 60 has a flat surface that slopes upward toward the rear end portion 60R. A distance D3 between the lower surface 60BT2 at the rear end portion 60R and the roof 50T of the vehicle 50 is greater than the distance D1. The lower surface 60BT2 of the housing 60 is not limited to a flat surface, and may be curved. Various shapes may be used in which the distance from 50T increases toward the rear end 60R.

As described above, according to the measurement device unit 100 of the present embodiment, the lower surface 60BT of the housing 60 is provided with the narrowed portion 80 . A distance D2 from the lower end 80BT of the narrowed portion 80 to the roof 50T of the vehicle 50 is smaller than a distance D1 from the lower surface 60BT1 of the housing 60 at the front end 60F to the roof 50T of the vehicle 50 . By reducing the distance between the bottom surface 60BT and the roof 50T of the vehicle 50 in a part of the housing 60, an increase in air resistance can be suppressed, and a decrease in the fuel efficiency of the vehicle 50 can be suppressed. By generating a down force DF1 directed toward the vehicle 50 with respect to the housing 60, the holding force of the support mechanism 70 with respect to the vehicle 50 can be improved.

According to the measuring device unit 100 of the present embodiment, the narrowed portion 80 is configured by a convex portion of the housing 60 that protrudes toward the vehicle 50 from the bottom surface 60BT of the housing 60 when mounted on the vehicle. Therefore, even if the shape of the roof 50T of the vehicle 50 is flat, the downforce DF1 can be generated. By adjusting the position where the narrowed portion 80 is formed, the position at which the downforce DF1 is generated can be adjusted.

According to the measuring device unit 100 of the present embodiment, the narrowed portion 80 has a substantially arcuate shape in the vertical cross section along the traveling direction of the vehicle 50 and has a curved surface. Therefore, the air resistance against the airflow W13 flowing in the vicinity of the constricted portion 80 can be reduced.

According to the measuring device unit 100 of the present embodiment, the diaphragm part 80 is provided on the lower surface 60BT of the housing 60 including the center AX of the housing 60, which is the center of gravity of the measuring device unit 100. FIG. Therefore, the down force DF1 generated in the housing 60 can be generated at the center of gravity of the measuring device unit 100, and the housing 60 can be stably fixed to the roof 50T of the vehicle 50. FIG.

According to the measuring device unit 100 of the present embodiment, when mounted on a vehicle, the distance between the lower surface 60BT2 on the rear end portion 60R side of the narrowed portion 80 and the roof 50T of the vehicle 50 in the housing 60 is set to the rear. It becomes larger toward the end 60R. Therefore, as shown as an airflow W14 in FIG. 4, the air passing through the narrowed portion 80 can be diffused on the rear end portion 60R side of the narrowed portion 80, and the flow speed of the air flowing on the lower end 80BT side of the narrowed portion 80 is can be made larger.

B. Second embodiment:
As shown in FIG. 5, the measuring device unit 100b of the second embodiment has two apertures. The measuring device unit 100b differs from the measuring device unit 100 of the first embodiment in that it includes a housing 60b having a first narrowed portion 81 and a second narrowed portion 82 instead of the housing 60. It is similar to the measuring device unit 100 . The lower surface 60BT of the housing 60b is planar except for the portion where the first narrowed portion 81 and the second narrowed portion 82 are provided.

The configurations of the first narrowed portion 81 and the second narrowed portion 82 differ from the narrowed portion 80 in the first embodiment in that the arrangement positions on the lower surface 60BT of the housing 60b are different. It is the same. The first narrowed portion 81 is provided at the same position as the mounting position of the first fixing portions 71L and 71R corresponding to the traveling direction of the vehicle 50 on the lower surface 60BT of the housing 60b. The second narrowed portion 82 is provided at the same position as the mounting positions of the second fixing portions 72L and 72R corresponding to the traveling direction of the vehicle 50 on the lower surface 60BT of the housing 60b.

When mounted on a vehicle, the distance D2 from the lower end 81BT of the first narrowed portion 81 to the roof 50T of the vehicle 50 and the distance D2 from the lower end 82BT of the second narrowed portion 82 to the roof 50T of the vehicle 50 are the lower surface 60BT of the front end portion 60F. to the roof 50T of the vehicle 50 than the distance D1. Therefore, the flow velocity of the air flowing between the roof 50T of the vehicle 50 and the first narrowed portion 81 indicated by the airflow W21 and the air flowing between the roof 50T of the vehicle 50 and the second narrowed portion 82 indicated by the airflow W22 is It becomes faster than the flow velocity of the air on the front end portion 60F side, and a down force DF2 is generated at the positions where the narrowed portions 81 and 82 of the housing 60b are provided.

According to the measuring device unit 100b of this embodiment, the first narrowed portion 81 is provided at the same position as the mounting position of the first fixed portions 71L and 71R, and the second narrowed portion 82 is provided at the second fixed portions 72L and 72R. It is provided at the same position as the mounting position of Therefore, the downforce DF2 can be generated at the positions where the first fixing portions 71L, 71R and the second fixing portions 72L, 72R are provided, and the holding force of the support mechanism 70 with respect to the vehicle 50 can be further improved. can. By generating downforce DF2 at a plurality of locations, housing 60b can be fixed to vehicle 50 in a more stable state. By distributing the positions where the downforce DF2 is generated, the load on the housing 60 due to the downforce DF2 can be distributed.

C. Third embodiment:
As shown in FIG. 6, the measuring device unit 100c of the third embodiment includes a reverse wing-shaped housing 60c. The inverted wing shape refers to a shape that generates lift in the vertical direction in the case 60c when the case 60c is mounted on the vehicle and receives an air current while the vehicle 50 is running. In the present embodiment, the housing 60c does not have the narrowed portion 80 of the measuring device unit 100 of the first embodiment, but may have it. Other configurations of the measurement device unit 100c are the same as those of the measurement device unit 100 of the first embodiment.

A top surface 60cTP of the housing 60c has two planes, a top surface 60cT1 on the front end portion 60F side and a top surface 60cT2 on the rear end portion 60R side. The angle between the upper surface 60T1 and the upper surface 60T2 is an obtuse angle. The upper surface 60cTP may be a curved surface extending from the front end portion 60F to the rear end portion 60R, or may be a single flat surface. In this embodiment, the lower surface 60cBT of the housing 60c has a curved surface extending from the front end portion 60F to the rear end portion 60R in a vertical cross section along the vehicle traveling direction. In the housing 60c, the maximum distance UC from the straight line CH connecting the front end 60F and the rear end 60R to the bottom surface 60cBT is greater than the maximum distance LC from the straight line CH to the top surface 60cTP.

The airflow generated by the running of the vehicle 50 circulates through a route on the upper surface 60cTP side of the housing 60c indicated as airflow W31 in FIG. 6 and a route on the lower surface 60cBT side of the housing 60c indicated by airflow W32. The path is divided and flows along the surface of the housing 60c. As shown by airflow W31, the air flowing on the upper surface 60cTP side of the housing 60c flows substantially linearly, and the air flowing on the lower surface 60cBT side shown by airflow W32 flows along the curved surface of the lower surface 60cBT. The flow velocity of air flowing on the bottom surface 60cBT side of the housing 60c is faster than the flow velocity of air flowing on the top surface 60cTP side. Therefore, the pressure on the side of the bottom surface 60cBT becomes larger than the pressure on the side of the top surface 60cTP of the housing 60c, and a vertically downward downforce DF3 is generated with respect to the housing 60c.

According to the measuring device unit 100c of this embodiment, the housing 60c has an inverted wing shape in the vertical cross section. Therefore, it is possible to obtain a down force DF3 against the housing 60c by utilizing the airflow when the vehicle 50 is running.

D. Fourth embodiment:
As shown in FIG. 7, the measurement device unit 100d of the fourth embodiment includes a support mechanism 70d instead of the support mechanism 70. As shown in FIG. In the measurement device unit 100d, the lower surface 60BT of the housing 60d is flat and does not include the narrowed portion 80 of the measurement device unit 100 of the first embodiment. Other configurations of the measuring device unit 100 d are the same as those of the measuring device unit 100 .

As shown in FIG. 8, the support mechanism 70d is different from the support mechanism 70 of the first embodiment in that the first support shaft 73 and the second support shaft 74 are replaced with a first support shaft 73d and a second support shaft 74d. It is different in that it is provided, and the rest of the configuration is the same as that of the support mechanism 70 . The upper side of the first support shaft 73d has a planar upper surface 73dT, and the lower side has a curved surface 73dB. The upper side of the second support shaft 74d has a planar upper surface 74dT, and the lower side has a curved surface 74dB. The first support shaft 73d and the second support shaft 74d are fixed at a position separated from the roof 50T of the vehicle 50. As shown in FIG. The housing 60d is mounted on the upper surface 73dT of the first support shaft 73d and the upper surface 74dT of the second support shaft 74d, and the first support shaft 73d and the second support shaft 74d serve as supports for supporting the housing 60d. Function.

As shown in FIG. 7, the shape of the vertical cross-section of the curved surface 73dB of the first support shaft 73d and the curved surface 74dB of the second support shaft 74d is substantially the same as the shape of the vertical cross-section of the throttle portion 80 in the first embodiment. be. In the support mechanism 70d when mounted on the vehicle, the distance D2 from the lower end of the curved surface 73dB of the first support shaft 73d to the roof 50T of the vehicle 50, and the distance D2 from the lower end of the curved surface 74dB of the second support shaft 74d to the roof 50T are It is smaller than the distance D1 from the lower surface 60BT of the housing 60d on the front end portion 60F side to the roof 50T of the vehicle 50. Therefore, a down force DF4 is generated at the position where the support shafts 73d and 74d are provided.

According to the measuring device unit 100d of this embodiment, the first support shaft 73d and the second support shaft 74d that support the housing 60d are provided. In the support mechanism 70d when mounted on the vehicle, the distance D2 from the lower ends of the support shafts 73d and 74d to the roof 50T is smaller than the distance D1 from the lower surface 60BT of the housing 60d on the front end portion 60F side to the roof 50T of the vehicle 50. . Since the downforce DF4 can be obtained using the shapes of the support shafts 73d and 74d, the shape of the lower surface 60BT of the housing 60d can be simplified. A downforce DF4 can be generated at positions where the first fixing portions 71L, 71R and the second fixing portions 72L, 72R are provided, and the holding force of the support mechanism 70d with respect to the vehicle 50 can be further improved.

E. Fifth embodiment:
As shown in FIG. 9, the measuring device unit 100e of the fifth embodiment differs from the first embodiment in that it includes a housing 60e having a narrowed portion 80e parallel to the horizontal plane and a lower surface 60BT instead of the housing 60. It differs from the measuring device unit 100 and is otherwise the same as the measuring device unit 100 of the first embodiment.

In this embodiment, the shape of the roof 50eT of the vehicle 50e differs from that of the roof 50T of the vehicle 50 in the first embodiment in that the roof 50eT of the vehicle 50e has a curved surface in the vertical section. More specifically, the roof 50eT of the vehicle 50e has a shape that slopes upward from the rear side of the vehicle toward the top end 50TP of the roof 50eT, and slopes downward from the top end 50TP forward.

As shown in FIG. 9, the shortest distance between the top end 50TP of the roof 50eT of the vehicle 50e and the bottom surface 60BT of the housing 60e when mounted on the vehicle is the distance D2. The distance D2 is smaller than the distance D5, which is the shortest distance between the lower surface 60BT on the front end 60F side of the housing 60e and the roof 50eT of the vehicle 50e. That is, in the present embodiment, the lower surface 60BT of the housing 60e at a position facing the upper end 50TP of the vehicle 50e functions as the narrowed portion 80e. As shown as an airflow W5 in FIG. 9, the flow velocity of the air near the constricted portion 80e becomes faster than the flow velocity of the air on the front end portion 60F side, thereby generating a downforce DF5.

According to the measuring device unit 100e of the present embodiment, the shape of the lower surface 60BT of the housing 60e is adjusted according to the shape of the roof 50eT of the vehicle 50e, and the distance between the upper end 50TP of the vehicle 50e and the lower surface 60BT of the housing 60e is D2 is configured to be smaller than the shortest distance D5 between the lower surface 60BT at the front end 60F and the roof 50eT. Therefore, it is possible to obtain the narrowed portion 80e that follows the shape of the roof 50eT of the vehicle 50e.

F. Other embodiments:
(F1) In each of the above-described embodiments, the constricted portion and the first support shaft 73d and the second support shaft 74d have substantially arcuate shapes in vertical cross sections and have curved surfaces. On the other hand, the narrowed portion and the first support shaft 73d and the second support shaft 74d may adopt a shape having no curved surface, such as a triangle with one vertex as the lower end, or a polygon such as a trapezoid. good. The narrowed portion and the first support shaft 73d and the second support shaft 74d are not limited to the arc shape, and may have curved surfaces of various shapes using a portion of a circle such as a hemispherical shape. It may be a curved surface that curves or distorts.

(F2) In the above-described first embodiment, an example in which the diaphragm portion 80 is integrally formed with the housing 60 is shown. On the other hand, the diaphragm portion 80 may be a separate component that is fixed to the housing 60 by being attached or assembled to the housing 60 .

(F3) In the above-described first embodiment, an example was shown in which the narrowed portion 80 is arranged at the center AX of the housing 60 that coincides with the center of gravity of the measuring device unit 100 . On the other hand, the narrowed portion 80 may be provided at a position that does not include the center of gravity of the measuring device unit 100 . In this case, in consideration of the stability of the housing 60 fixed to the vehicle 50, the narrowed portion 80 is located at the same position as each fixed portion of the support mechanism 70 along the vehicle traveling direction or between the fixed portions. It is preferable to place it in position.

(F4) In the third embodiment, the shape of the housing 60c including the front end portion 60F may be a hemispherical cross-sectional shape that protrudes forward in the direction of travel of the vehicle. Various shapes of reduction may be employed. Further, the rear end portion 60R of the housing 60c does not have a flat surface, and may have a shape that is pointed toward the rear in the traveling direction, such as an acute inner angle. The housing 60 c may adopt any inverted wing shape that generates lift in the vertical direction according to the Reynolds number of the housing 60 c corresponding to the running of the vehicle 50 .

The present disclosure is not limited to the embodiments and modifications described above, and can be implemented in various configurations without departing from the scope of the present disclosure. For example, the technical features in the embodiments and modifications corresponding to the technical features in each form described in the summary column of the invention are used to solve some or all of the above problems, or In order to achieve some or all of the effects, it is possible to appropriately replace or combine them. Also, if the technical features are not described as essential in this specification, they can be deleted as appropriate.

20 Data processing device 30 Sensor group 50, 50e Vehicle 50T, 50eT Roof 60, 60b to 60e Housing 60BT1 Lower surface 60F Front end 60R Rear end 70 Support Mechanism 70d Support mechanism 71L, 71R First fixed part 72L, 72R Second fixed part 73 First support shaft 73d First support shaft 73dB, 74dB Curved surface 80, 80e Aperture part, 80BT ... lower end, 100, 100b to 100e ... measuring device unit

Claims (6)

A measuring device unit (100, 100b, 100e) mounted on a roof (50T, 50eT) of a vehicle (50, 50e),
a plurality of detectors (30);
a data processing device (20) that generates integrated data using the detection results of the plurality of detectors;
A housing (60, 60b, 60e) for housing the data processing device therein, comprising: a front end portion (60F) corresponding to the front side of the vehicle when mounted on the vehicle; a housing having a rear end (60R) corresponding to the rear side;
a support mechanism (70) for securing the housing to the vehicle away from the roof of the vehicle;
In the narrowed portion (80, 80e) provided on the lower surface (60BT) of the housing, the distance (D2) from the lower end (80BT) of the narrowed portion to the roof of the vehicle at the time of mounting is equal to the front end portion. a narrower portion smaller than the distance (D1, D5) from to the roof of the vehicle ,
The narrowed portion is provided at a position including the center of gravity of the measurement device unit,
instrumentation unit. 2. The measuring device unit according to claim 1, wherein said constricted portion is a projection projecting toward said vehicle when mounted. 2. The measuring device unit according to claim 1, wherein said constricted portion has a curved shape protruding toward said vehicle when mounted. The measuring device unit according to any one of claims 1 to 3,
The housing has a shape in which the distance from the lower end of the housing to the roof of the vehicle when mounted increases from the position where the narrowed portion is provided toward the rear end,
instrumentation unit. A measuring device unit (100, 100b, 100e) mounted on a roof (50T, 50eT) of a vehicle (50, 50e),
a plurality of detectors (30);
a data processing device (20) that generates integrated data using the detection results of the plurality of detectors;
A housing (60, 60b, 60e) for housing the data processing device therein, comprising: a front end portion (60F) corresponding to the front side of the vehicle when mounted on the vehicle; a housing having a rear end (60R) corresponding to the rear side;
a support mechanism (70) for securing the housing to the vehicle away from the roof of the vehicle;
In the narrowed portion (80, 80e) provided on the lower surface (60BT) of the housing, the distance (D2) from the lower end (80BT) of the narrowed portion to the roof of the vehicle at the time of mounting is equal to the front end portion. a narrower portion smaller than the distance (D1, D5) from to the roof of the vehicle,
The support mechanism includes first fixing portions (71L, 71R) for fixing the support mechanism to the vehicle, and is located closer to the rear end than the first fixing portion, and attaches the support mechanism to the vehicle. A second fixing part (72L, 72R) for fixing,
The narrowed portion includes a first narrowed portion (81) provided at the same position as the mounting position of the first fixing portion corresponding to the traveling direction of the vehicle, and the second fixing portion corresponding to the traveling direction of the vehicle. A second constricted portion (82) provided at the same position as the mounting position,
instrumentation unit. A measuring device unit (100d) mounted on a roof (50T) of a vehicle (50),
a plurality of detectors (30);
a data processing device (20) that generates integrated data using the detection results of the plurality of detectors;
A housing (60d) for housing the data processing device therein, the front end portion (60F) corresponding to the front side of the vehicle when mounted on the vehicle, and the rear side of the vehicle when mounted. a housing having a rear end (60R) that
a support mechanism (70d) for fixing the housing to the vehicle in a state of being separated from the roof of the vehicle;
The support mechanism is a support body (73d, 74d) for supporting the housing extending in the width direction of the housing, and having a curved cross-sectional shape protruding downward in the vertical direction. a support where the distance (D2) from the lower end (73 dB, 74 dB) of the support to the roof of the vehicle at time is less than the distance (D1) from the front end to the roof of the vehicle,
instrumentation unit.

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